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Gene Information

Gene symbol: CD80

Gene name: CD80 molecule

HGNC ID: 1700

Synonyms: B7.1, B7-1

Related Genes

# Gene Symbol Number of hits
1 AAVS1 1 hits
2 ACPP 1 hits
3 ADAM11 1 hits
4 ADCY10 1 hits
5 AGR3 1 hits
6 APC 1 hits
7 BAGE 1 hits
8 C19orf10 1 hits
9 CALR 1 hits
10 CCL19 1 hits
11 CCL2 1 hits
12 CCL21 1 hits
13 CCL27 1 hits
14 CCL3 1 hits
15 CCL5 1 hits
16 CCL7 1 hits
17 CCR1 1 hits
18 CCR5 1 hits
19 CCR7 1 hits
20 CD14 1 hits
21 CD19 1 hits
22 CD1A 1 hits
23 CD1B 1 hits
24 CD1C 1 hits
25 CD1D 1 hits
26 CD2 1 hits
27 CD209 1 hits
28 CD24 1 hits
29 CD27 1 hits
30 CD274 1 hits
31 CD28 1 hits
32 CD34 1 hits
33 CD36 1 hits
34 CD38 1 hits
35 CD4 1 hits
36 CD40 1 hits
37 CD40LG 1 hits
38 CD44 1 hits
39 CD48 1 hits
40 CD5 1 hits
41 CD58 1 hits
42 CD59 1 hits
43 CD69 1 hits
44 CD70 1 hits
45 CD83 1 hits
46 CD86 1 hits
47 CD8A 1 hits
48 CELIAC3 1 hits
49 CIITA 1 hits
50 CKAP2 1 hits
51 COL1A1 1 hits
52 COL2A1 1 hits
53 CPAT1 1 hits
54 CR2 1 hits
55 CSF1 1 hits
56 CSF2 1 hits
57 CSF3 1 hits
58 CTCFL 1 hits
59 CTLA4 1 hits
60 CTS1 1 hits
61 CXCL10 1 hits
62 CXCL2 1 hits
63 CXCR4 1 hits
64 DARC 1 hits
65 DPP4 1 hits
66 DPT 1 hits
67 DR1 1 hits
68 EBNA1BP2 1 hits
69 EIF2AK2 1 hits
70 ERBB2 1 hits
71 ERVWE1 1 hits
72 FAS 1 hits
73 FASLG 1 hits
74 FCER2 1 hits
75 FCGR1A 1 hits
76 FCGR2A 1 hits
77 FCGR3A 1 hits
78 FGF2 1 hits
79 FOXP3 1 hits
80 GATA3 1 hits
81 GINS2 1 hits
82 GJB6 1 hits
83 GLI2 1 hits
84 GPI 1 hits
85 GPR162 1 hits
86 HLA-A 1 hits
87 HLA-B 1 hits
88 HLA-DRB1 1 hits
89 HLA-E 1 hits
90 HSP90AA1 1 hits
91 HSPA1A 1 hits
92 HSPD1 1 hits
93 ICAM1 1 hits
94 ICOSLG 1 hits
95 IFNA1 1 hits
96 IFNB1 1 hits
97 IFNG 1 hits
98 IL10 1 hits
99 IL12A 1 hits
100 IL12B 1 hits
101 IL13 1 hits
102 IL15 1 hits
103 IL15RA 1 hits
104 IL17A 1 hits
105 IL17C 1 hits
106 IL17D 1 hits
107 IL18 1 hits
108 IL1A 1 hits
109 IL1B 1 hits
110 IL1R1 1 hits
111 IL1R2 1 hits
112 IL2 1 hits
113 IL21 1 hits
114 IL23A 1 hits
115 IL24 1 hits
116 IL2RA 1 hits
117 IL3 1 hits
118 IL4 1 hits
119 IL5 1 hits
120 IL6 1 hits
121 IL7 1 hits
122 IL8 1 hits
123 IL9 1 hits
124 INDO 1 hits
125 IRF7 1 hits
126 ISG15 1 hits
127 ISG20 1 hits
128 ITGAL 1 hits
129 ITGAM 1 hits
130 ITGAX 1 hits
131 ITGB2 1 hits
132 KLRK1 1 hits
133 LAMP3 1 hits
134 LAT 1 hits
135 LMNA 1 hits
136 LOH19CR1 1 hits
137 LTA 1 hits
138 LTF 1 hits
139 LY75 1 hits
140 MAGEA3 1 hits
141 MAP3K14 1 hits
142 MAPK1 1 hits
143 MBOAT7 1 hits
144 MLANA 1 hits
145 MRC1 1 hits
146 MUC1 1 hits
147 MYD88 1 hits
148 MYOZ3 1 hits
149 NCAM1 1 hits
150 NFKB1 1 hits
151 NPY 1 hits
152 NT5E 1 hits
153 PDCD1 1 hits
154 PDCD1LG2 1 hits
155 PIK3R3 1 hits
156 PLP1 1 hits
157 PSMB9 1 hits
158 PTGS2 1 hits
159 PTPRC 1 hits
160 RAB8A 1 hits
161 RAPH1 1 hits
162 RENBP 1 hits
163 RFXANK 1 hits
164 RPA1 1 hits
165 S100A1 1 hits
166 SETBP1 1 hits
167 SILV 1 hits
168 SLURP1 1 hits
169 SMAD2 1 hits
170 SPG7 1 hits
171 SPN 1 hits
172 STX1A 1 hits
173 STX1B 1 hits
174 TAOK2 1 hits
175 TBX21 1 hits
176 TGFB1 1 hits
177 TICAM1 1 hits
178 TLR2 1 hits
179 TLR4 1 hits
180 TLR7 1 hits
181 TLR9 1 hits
182 TNF 1 hits
183 TNFAIP3 1 hits
184 TNFRSF4 1 hits
185 TNFRSF9 1 hits
186 TNFSF14 1 hits
187 TP63 1 hits
188 TRAF6 1 hits
189 TYR 1 hits
190 UBASH3B 1 hits
191 VCP 1 hits
192 VHLL 1 hits
193 VWS 1 hits
194 XRCC1 1 hits

Related Sentences

# PMID Sentence
1 7489749 We, therefore, generated DC from peripheral blood of normal donors in the presence of granulocyte/macrophage colony-stimulating factor and interleukin-4.
2 7489749 Flow cytometric analysis of the cells during a 2-week culture revealed a loss of CD14 and CD34 expression, a concomittent increase of CD1a, CD11a,b and c, CD44, CD45, CD54, HLA-class I and II, and intermediate levels of CD26, CD80 and CD86.
3 7532543 CD34+ HPC can be mobilized into the peripheral blood by in vivo administration of granulocyte-colony-stimulating factor.
4 7532543 The aim of the current study was to determine whether functional dendritic cells could be elicited and grown in vitro from CD34+ HPC derived from bone marrow or granulocyte-colony-stimulating factor-mobilized peripheral blood.
5 7532543 Culture of CD34+ HPC with granulocyte-macrophage-colony-stimulating factor and tumor necrosis factor alpha yielded a heterogeneous cell population containing cells with typical dendritic morphology.
6 7532543 Phenotypic studies demonstrated a loss of the CD34 molecule over 1 week and an increase in cells expressing surface markers associated with dendritic cells, CD1a, CD80 (B7/BB1), CD4, CD14, HLA-DR, and CD64 (Fc gamma RI).
7 7532543 Function was validated in experiments showing that cultured cells could stimulate proliferation of allogeneic CD4+ and CD8+ T lymphocytes.
8 7532543 The derivation and expansion of dendritic cells from cultured bone marrow or granulocyte-colony-stimulating factor-mobilized CD34+ HPC may provide adequate numbers for testing of dendritic cells in clinical studies, such as vaccine and T cell therapy trials.
9 8647214 IL-12 also synergizes with B7.1 (CD80) co-stimulation to induce proliferation and cytokine production by both human and murine T cells in vitro.
10 8647214 The synergistic anti-tumor effects associated with combined application of B7.1- and IL-12-transfected tumors were partially negated by systemic administration of the CD28-B7.1/B7.2 antagonist CTLA4-Ig or by inoculation with neutralizing antibodies directed against murine interferon-gamma or tumor necrosis factor-alpha, two cytokines elicited in response to IL-12 stimulation.
11 8665522 Two molecules capable of providing a costimulatory signal, B7-1 (CD80) and B7-2 (CD86), have been shown to augment the immunogenicity of whole-tumor cell vaccines.
12 8839846 Here, we show that the sequential use of early-acting hematopoietic growth factors, stem cell factor, interleukin (IL)-3, and IL-6, followed on day 8 by differentiation in the two-factor combination IL-4 plus granulocytemacrophage colony-stimulating factor (GM-CSF) (CC4GM) is more efficient and allows the cells to be arrested in the LC stage for more than 1 week while continuous maturation occurs in CC7-7.
13 8839846 LC were CD1a+2 DR+2, CD23+, CD36+, CD80-, CD86-, and CD25-, while DC were CD1a+/- DR+3, CD23-, CD36-, CD80+, CD86+2, and CD25+, CD40 and CD32 were moderately expressed and nearly unchanged on maturation, in contrast to monocyte-derived DC.
14 8892615 We show here that highly purified CD14(bright) peripheral blood monocytes supplemented with granulocyte-monocyte (GM)-CSF plus IL-4 develop with high efficacy (>95% of input cells) into DC.
15 8892615 They neo-expressed CD1a, CD1b, CD1c, CD80, and CD5; they massively up-regulated CD40 (109-fold) and HLA-DQ and DP (125- and 87-fold); and significantly (>5-fold) up-regulated HLA-DR, CD4, CD11b, CD11c, CD43, CD45, CD45R0, CD54, CD58, and CD59.
16 8892615 CD14, CD15s, CD64, and CDw65 molecules were down-regulated to background levels, and no major changes were observed for HLA class I, CD11a, CD32, CD33, CD48, CD50, CD86, CDw92, CD93, or CD97.
17 8892615 Monocytes cultured in parallel with GM-CSF plus TNF-alpha were more heterogeneous in expression densities but otherwise similar in their surface molecule repertoire.
18 8892615 Only GM-CSF plus IL-4-cultured cells were found to be potent stimulators in allogeneic and autologous MLR and they presented tetanus toxoid 100- to 1000-fold more efficiently than other cell populations tested.
19 9103464 The CTA1-DD, as well as CT, up-regulated expression of the CD80 and CD86 molecules on the targeted B cells, indicating that enhanced T cell costimulation may be responsible for the adjuvant effect.
20 9144470 Costimulation of T cell proliferation by a chimeric B7-2 antibody fusion protein specifically targeted to cells expressing the erbB2 proto-oncogene.
21 9144470 The second, costimulatory signal can be provided by cell surface molecules on APCs such as B7-1 (CD80) and B7-2 (CD86), which interact with their counter-receptors on T cells.
22 9144470 Our approach is based on a chimeric fusion protein that consists of the extracellular domain of human B7-2 fused to a single-chain Ab domain (scFv) specific for the ErbB2 protein, a type I growth factor receptor overexpressed in a high percentage of human adenocarcinomas.
23 9144470 This B7-2(225)-scFv(FRP5) molecule expressed in the yeast Pichia pastoris and purified from culture supernatants is functionally active and binds to B7 counter-receptors and to ErbB2.
24 9144470 B7-2(225)-scFv(FRP5) localizes specifically to the surface of ErbB2-expressing target cells, thereby providing a costimulatory signal that results in enhanced proliferation of syngeneic T cells.
25 9159336 Treatment of CaSki or SiHa cells with interferon-gamma resulted in an increased expression of MHC class I, MHC class II, and CD54.
26 9159336 Expression of CD58 and CD80 was not up-regulated or induced.
27 9159336 Treatment of the tumor cells with interferon-gamma significantly enhanced the lysis of the tumor cells by specific CTLs which had been activated by the respective CD80-expressing tumor cells.
28 9159336 Treatment of CaSki or SiHa cells with interferon-gamma resulted in an increased expression of MHC class I, MHC class II, and CD54.
29 9159336 Expression of CD58 and CD80 was not up-regulated or induced.
30 9159336 Treatment of the tumor cells with interferon-gamma significantly enhanced the lysis of the tumor cells by specific CTLs which had been activated by the respective CD80-expressing tumor cells.
31 9219266 We have developed expression cassettes for cell surface markers CD80 and CD86, two functionally related costimulatory molecules that play an important role in the induction of T cell-mediated immune responses.
32 9310466 Proliferating human bone marrow and cord blood CD34+ cells were infected by retroviral vectors encoding the murine CD2 surface antigen.
33 9310466 Transduced or untransduced dendritic cell progeny expressed comparable levels of HLA-DR, CD83, CD1a, CD80, CD86, S100, and p55 antigens.
34 9334822 Notably all lines expressed HLA class I, intercellular adhesion molecule-1 (ICAM-1), polymorphic epithelial mucin (PEM) and cytokeratin (CK), but not HLA class II, B7.1 (CD80) or BAGE.
35 9334822 While of the 9 lines tested 4 (INT.Ov1, 2, 5 and 6) expressed the folate receptor (FR-alpha) and 6 (INT.Ov1, 2, 5, 6, 7 and 9) expressed the epidermal growth factor receptor (EGFR); MAGE-1 and p185HER-2/neu were only found in 2 lines (INT.Ov1 and 2) and GAGE-1 expression in 1 line (INT.Ov2).
36 9334822 The identification of class I MHC ligands and T-cell epitopes within protein antigens was achieved by applying several theoretical methods including: 1) similarity or homology searches to MHCPEP; 2) BIMAS and 3) artificial neural network-based predictions of proteins MAGE, GAGE, EGFR, p185HER-2/neu and FR-alpha expressed in INT.Ov lines.
37 9389572 GM-CSF and B7-1 (CD80) co-stimulatory signals co-operate in the induction of effective anti-tumor immunity in syngeneic mice.
38 9389572 In vivo depletion assay revealed that abrogation of tumorigenicity in LLC/B7 depended on CD8+ T cells but not on CD4+ T cells.
39 9458367 CD80+ transfectants were more sensitive to the cytotolytic effect of MC12-immune splenocytes and IL-2-activated spleen cells than the parental MC12 sarcoma.
40 9510170 Because these mice retained their ability to up-regulate the CTLA4 receptor (a negative regulator of T cell activation), we examined CTLA4's role in the response of wild-type BALB/c mice to NAV.
41 9510170 Intact anti-CTLA4 mAb but not Fab fragments suppressed the primary humoral response to pCIA/beta gal without affecting recall responses, indicating CTLA4 activation inhibited Ab production but not T cell priming.
42 9510170 Blockade of the ligands for CD28 and CTLA4, CD80 (B7-1) and CD86 (B7-2), revealed distinct and nonoverlapping function.
43 9510170 Blockade of CD80 at initial immunization completely abrogated primary and secondary Ab responses, whereas blockade of CD86 suppressed primary but not secondary responses.
44 9510170 Simultaneous blockade of CD80 + CD86 was less effective at suppressing Ab responses than either alone.
45 9510170 These findings suggest complex and distinct roles for CD28, CTLA4, CD80, and CD86 in T cell costimulation following nucleic acid vaccination.
46 9510170 Because these mice retained their ability to up-regulate the CTLA4 receptor (a negative regulator of T cell activation), we examined CTLA4's role in the response of wild-type BALB/c mice to NAV.
47 9510170 Intact anti-CTLA4 mAb but not Fab fragments suppressed the primary humoral response to pCIA/beta gal without affecting recall responses, indicating CTLA4 activation inhibited Ab production but not T cell priming.
48 9510170 Blockade of the ligands for CD28 and CTLA4, CD80 (B7-1) and CD86 (B7-2), revealed distinct and nonoverlapping function.
49 9510170 Blockade of CD80 at initial immunization completely abrogated primary and secondary Ab responses, whereas blockade of CD86 suppressed primary but not secondary responses.
50 9510170 Simultaneous blockade of CD80 + CD86 was less effective at suppressing Ab responses than either alone.
51 9510170 These findings suggest complex and distinct roles for CD28, CTLA4, CD80, and CD86 in T cell costimulation following nucleic acid vaccination.
52 9510170 Because these mice retained their ability to up-regulate the CTLA4 receptor (a negative regulator of T cell activation), we examined CTLA4's role in the response of wild-type BALB/c mice to NAV.
53 9510170 Intact anti-CTLA4 mAb but not Fab fragments suppressed the primary humoral response to pCIA/beta gal without affecting recall responses, indicating CTLA4 activation inhibited Ab production but not T cell priming.
54 9510170 Blockade of the ligands for CD28 and CTLA4, CD80 (B7-1) and CD86 (B7-2), revealed distinct and nonoverlapping function.
55 9510170 Blockade of CD80 at initial immunization completely abrogated primary and secondary Ab responses, whereas blockade of CD86 suppressed primary but not secondary responses.
56 9510170 Simultaneous blockade of CD80 + CD86 was less effective at suppressing Ab responses than either alone.
57 9510170 These findings suggest complex and distinct roles for CD28, CTLA4, CD80, and CD86 in T cell costimulation following nucleic acid vaccination.
58 9510170 Because these mice retained their ability to up-regulate the CTLA4 receptor (a negative regulator of T cell activation), we examined CTLA4's role in the response of wild-type BALB/c mice to NAV.
59 9510170 Intact anti-CTLA4 mAb but not Fab fragments suppressed the primary humoral response to pCIA/beta gal without affecting recall responses, indicating CTLA4 activation inhibited Ab production but not T cell priming.
60 9510170 Blockade of the ligands for CD28 and CTLA4, CD80 (B7-1) and CD86 (B7-2), revealed distinct and nonoverlapping function.
61 9510170 Blockade of CD80 at initial immunization completely abrogated primary and secondary Ab responses, whereas blockade of CD86 suppressed primary but not secondary responses.
62 9510170 Simultaneous blockade of CD80 + CD86 was less effective at suppressing Ab responses than either alone.
63 9510170 These findings suggest complex and distinct roles for CD28, CTLA4, CD80, and CD86 in T cell costimulation following nucleic acid vaccination.
64 9546800 Immunoliposomes containing monoclonal antibodies (MAbs) to the costimulatory molecules CD28 and CTLA4 and their counterreceptors B7-1 (CD80) and B7-2 (CD86) were evaluated for the ability to increase the immune response to recombinant envelope protein rgp120 of the MN strain of human immunodeficiency virus type 1 (HIV-1) during vaccination.
65 9546800 The DTH response was not accompanied by increased production of interferon gamma (IFN-gamma) or interleukin 4 (IL-4), implying that the primary cellular interaction was between the immunoliposomes and cells of the reticuloendothelial system and not helper T (Th) cells.
66 9616162 The role of tumor necrosis factor alpha in modulating the quantity of peripheral blood-derived, cytokine-driven human dendritic cells and its role in enhancing the quality of dendritic cell function in presenting soluble antigens to CD4+ T cells in vitro.
67 9616162 DC progenitors from peripheral blood mononuclear cells (PBMC) were enriched by adherence to plastic, and the adherent cells were then cultured in serum-free XVIVO-15 medium (SFM) for 7 days with added granulocyte-macrophage colony-stimulating factor (GM-CSF) and interleukin-4 (IL-4).
68 9616162 Moreover, 14-day cultured DC generated in the presence of TNFalpha (when added at day 7) demonstrated marked enhancement in their capacity to stimulate a primary allogeneic mixed leukocyte reaction (8-fold increase in stimulation index [SI]) as well as to present soluble tetanus toxoid and candida albicans (10- to 100-fold increases in SI) to purified CD4+ T cells.
69 9616162 When compared with non-TNFalpha-supplemented cultures, these DC also displayed an increased surface expression of CD83 as well as the costimulatory molecules, CD80 and CD86.
70 9622100 Enhancement of antitumor immunity by expression of CD70 (CD27 ligand) or CD154 (CD40 ligand) costimulatory molecules in tumor cells.
71 9622100 CD70 (CD27 ligand (CD27L)), CD153 (CD30L), and CD154 (CD40L) are members of the tumor necrosis factor family of costimulatory molecules and expressed on the surface of T cells that are important for both T- and B-cell help.
72 9622100 We examined the capacity for expression of these tumor necrosis factor family members on tumor cells to induce an antitumor response either in the presence or absence of interleukin 12.
73 9622100 Retroviral vectors were constructed that expressed high levels of membrane bound CD70, CD153, or CD154 following infection and selection of the murine tumor lines MCA 207 or TS/A.
74 9622100 When tested for tumor establishment, the expression of either CD70 or CD154 was able to slow tumor growth.
75 9622100 Similarly, CD70 or CD154 were able to induce antitumor immunity at a higher frequency when tested in vaccination and therapy models.
76 9622100 CD70 was able to induce antitumor immunity at a level similar to CD80 when tested either in the presence or absence of interleukin 12.
77 9622100 Moreover, coexpression of CD70 and CD80 was able to synergize the induction of a higher frequency of antitumor immunity in a vaccination model.
78 9622100 Taken together, our results suggest that CD154 and in particular CD70 are able to contribute to the induction of the immune response to tumor in murine models and thus may be of use for human clinical trials.
79 9622100 Enhancement of antitumor immunity by expression of CD70 (CD27 ligand) or CD154 (CD40 ligand) costimulatory molecules in tumor cells.
80 9622100 CD70 (CD27 ligand (CD27L)), CD153 (CD30L), and CD154 (CD40L) are members of the tumor necrosis factor family of costimulatory molecules and expressed on the surface of T cells that are important for both T- and B-cell help.
81 9622100 We examined the capacity for expression of these tumor necrosis factor family members on tumor cells to induce an antitumor response either in the presence or absence of interleukin 12.
82 9622100 Retroviral vectors were constructed that expressed high levels of membrane bound CD70, CD153, or CD154 following infection and selection of the murine tumor lines MCA 207 or TS/A.
83 9622100 When tested for tumor establishment, the expression of either CD70 or CD154 was able to slow tumor growth.
84 9622100 Similarly, CD70 or CD154 were able to induce antitumor immunity at a higher frequency when tested in vaccination and therapy models.
85 9622100 CD70 was able to induce antitumor immunity at a level similar to CD80 when tested either in the presence or absence of interleukin 12.
86 9622100 Moreover, coexpression of CD70 and CD80 was able to synergize the induction of a higher frequency of antitumor immunity in a vaccination model.
87 9622100 Taken together, our results suggest that CD154 and in particular CD70 are able to contribute to the induction of the immune response to tumor in murine models and thus may be of use for human clinical trials.
88 9625825 In all vaccines, all tumour cells expressed HLA class I, some expressed HLA class II and none expressed CD80.
89 9637479 These cells are directly transfected in vivo, present Ag, and display the surface proteins CD80 and CD86.
90 9640250 Gene transfer of costimulatory molecules into a human colorectal cancer cell line: requirement of CD54, CD80 and class II MHC expression for enhanced immunogenicity.
91 9640250 Using transfected variants of the human colorectal cancer cell line SW480 we tested various costimulatory molecules (CD80, CD86, CD54) and a class II major histocompatibility complex (MHC) allele (HLA-DR3) alone or in combination on their ability to support primary T-lymphocyte activation in vitro.
92 9640250 Expression of CD80 or CD86 similarly as the combination of both was not sufficient to induce proliferation of human allogeneic T cells.
93 9640250 Expression of CD54 together with CD80 strongly augmented the costimulatory function of CD80, as observed in the presence of a CD3 monoclonal antibody (mAb), but did not lead directly to a T-cell response against modified tumour cells.
94 9640250 Importantly, SW480 cells coexpressing CD54, CD80 and the HLA-DR3 allele effectively promoted T-lymphocyte proliferation.
95 9640250 Moreover, the use of such CD54+/CD80+/HLA-DR3+ SW480 variants for repetitive stimulations resulted in the generation of T-cell lines predominantly composed of CD8+ T cells exhibiting class I MHC restricted cytolytic activity towards untransfected SW480 tumour cells.
96 9640250 Gene transfer of costimulatory molecules into a human colorectal cancer cell line: requirement of CD54, CD80 and class II MHC expression for enhanced immunogenicity.
97 9640250 Using transfected variants of the human colorectal cancer cell line SW480 we tested various costimulatory molecules (CD80, CD86, CD54) and a class II major histocompatibility complex (MHC) allele (HLA-DR3) alone or in combination on their ability to support primary T-lymphocyte activation in vitro.
98 9640250 Expression of CD80 or CD86 similarly as the combination of both was not sufficient to induce proliferation of human allogeneic T cells.
99 9640250 Expression of CD54 together with CD80 strongly augmented the costimulatory function of CD80, as observed in the presence of a CD3 monoclonal antibody (mAb), but did not lead directly to a T-cell response against modified tumour cells.
100 9640250 Importantly, SW480 cells coexpressing CD54, CD80 and the HLA-DR3 allele effectively promoted T-lymphocyte proliferation.
101 9640250 Moreover, the use of such CD54+/CD80+/HLA-DR3+ SW480 variants for repetitive stimulations resulted in the generation of T-cell lines predominantly composed of CD8+ T cells exhibiting class I MHC restricted cytolytic activity towards untransfected SW480 tumour cells.
102 9640250 Gene transfer of costimulatory molecules into a human colorectal cancer cell line: requirement of CD54, CD80 and class II MHC expression for enhanced immunogenicity.
103 9640250 Using transfected variants of the human colorectal cancer cell line SW480 we tested various costimulatory molecules (CD80, CD86, CD54) and a class II major histocompatibility complex (MHC) allele (HLA-DR3) alone or in combination on their ability to support primary T-lymphocyte activation in vitro.
104 9640250 Expression of CD80 or CD86 similarly as the combination of both was not sufficient to induce proliferation of human allogeneic T cells.
105 9640250 Expression of CD54 together with CD80 strongly augmented the costimulatory function of CD80, as observed in the presence of a CD3 monoclonal antibody (mAb), but did not lead directly to a T-cell response against modified tumour cells.
106 9640250 Importantly, SW480 cells coexpressing CD54, CD80 and the HLA-DR3 allele effectively promoted T-lymphocyte proliferation.
107 9640250 Moreover, the use of such CD54+/CD80+/HLA-DR3+ SW480 variants for repetitive stimulations resulted in the generation of T-cell lines predominantly composed of CD8+ T cells exhibiting class I MHC restricted cytolytic activity towards untransfected SW480 tumour cells.
108 9640250 Gene transfer of costimulatory molecules into a human colorectal cancer cell line: requirement of CD54, CD80 and class II MHC expression for enhanced immunogenicity.
109 9640250 Using transfected variants of the human colorectal cancer cell line SW480 we tested various costimulatory molecules (CD80, CD86, CD54) and a class II major histocompatibility complex (MHC) allele (HLA-DR3) alone or in combination on their ability to support primary T-lymphocyte activation in vitro.
110 9640250 Expression of CD80 or CD86 similarly as the combination of both was not sufficient to induce proliferation of human allogeneic T cells.
111 9640250 Expression of CD54 together with CD80 strongly augmented the costimulatory function of CD80, as observed in the presence of a CD3 monoclonal antibody (mAb), but did not lead directly to a T-cell response against modified tumour cells.
112 9640250 Importantly, SW480 cells coexpressing CD54, CD80 and the HLA-DR3 allele effectively promoted T-lymphocyte proliferation.
113 9640250 Moreover, the use of such CD54+/CD80+/HLA-DR3+ SW480 variants for repetitive stimulations resulted in the generation of T-cell lines predominantly composed of CD8+ T cells exhibiting class I MHC restricted cytolytic activity towards untransfected SW480 tumour cells.
114 9640250 Gene transfer of costimulatory molecules into a human colorectal cancer cell line: requirement of CD54, CD80 and class II MHC expression for enhanced immunogenicity.
115 9640250 Using transfected variants of the human colorectal cancer cell line SW480 we tested various costimulatory molecules (CD80, CD86, CD54) and a class II major histocompatibility complex (MHC) allele (HLA-DR3) alone or in combination on their ability to support primary T-lymphocyte activation in vitro.
116 9640250 Expression of CD80 or CD86 similarly as the combination of both was not sufficient to induce proliferation of human allogeneic T cells.
117 9640250 Expression of CD54 together with CD80 strongly augmented the costimulatory function of CD80, as observed in the presence of a CD3 monoclonal antibody (mAb), but did not lead directly to a T-cell response against modified tumour cells.
118 9640250 Importantly, SW480 cells coexpressing CD54, CD80 and the HLA-DR3 allele effectively promoted T-lymphocyte proliferation.
119 9640250 Moreover, the use of such CD54+/CD80+/HLA-DR3+ SW480 variants for repetitive stimulations resulted in the generation of T-cell lines predominantly composed of CD8+ T cells exhibiting class I MHC restricted cytolytic activity towards untransfected SW480 tumour cells.
120 9640250 Gene transfer of costimulatory molecules into a human colorectal cancer cell line: requirement of CD54, CD80 and class II MHC expression for enhanced immunogenicity.
121 9640250 Using transfected variants of the human colorectal cancer cell line SW480 we tested various costimulatory molecules (CD80, CD86, CD54) and a class II major histocompatibility complex (MHC) allele (HLA-DR3) alone or in combination on their ability to support primary T-lymphocyte activation in vitro.
122 9640250 Expression of CD80 or CD86 similarly as the combination of both was not sufficient to induce proliferation of human allogeneic T cells.
123 9640250 Expression of CD54 together with CD80 strongly augmented the costimulatory function of CD80, as observed in the presence of a CD3 monoclonal antibody (mAb), but did not lead directly to a T-cell response against modified tumour cells.
124 9640250 Importantly, SW480 cells coexpressing CD54, CD80 and the HLA-DR3 allele effectively promoted T-lymphocyte proliferation.
125 9640250 Moreover, the use of such CD54+/CD80+/HLA-DR3+ SW480 variants for repetitive stimulations resulted in the generation of T-cell lines predominantly composed of CD8+ T cells exhibiting class I MHC restricted cytolytic activity towards untransfected SW480 tumour cells.
126 9712080 Intradermal vCP-LAIgp160 injection induced an intradermal perivascular human lymphocytic infiltrate and an epidermic network of CD1a+, CD80+, and CD86+ cells.
127 9712080 Cytokine gene expression in both human skin cells and in STLs showed a predominance of IL-2, IFN-gamma, and IL-12 transcripts.
128 9759932 Immune response to Philadelphia chromosome-positive acute lymphoblastic leukemia induced by expression of CD80, interleukin 2, and granulocyte-macrophage colony-stimulating factor.
129 9759932 The immunostimulatory molecules chosen for this study were the cytokines IL-2 and GM-CSF and the costimulatory ligand CD80 (B7.1).
130 9759932 BM185wt cells were transduced with retroviral vectors and the transduced clones expressing mIL-2, mGM-CSF, or mCD80 were used for challenge.
131 9759932 Expression of CD80 caused leukemia rejection in 50% of the cohort, which was associated with the CD4+ and CD8+ T cell-dependent development of anti-leukemia cytotoxic T lymphocytes.
132 9778744 The enhanced protection conferred by Flu-ISCOMs in aged mice correlates with the up-regulation of co-stimulatory molecule, CD86 (B7.2) and to a lesser extent, CD80 (B7.1) expression on antigen presenting cells.
133 9795388 To enhance a DNA vaccine's ability to induce CTL response in vivo, we co-administered CD80 and CD86 expression cassettes along with HIV-1 immunogens.
134 9796737 Such Ts cells express the CD8+CD28- phenotype and show the following characteristics: (a) antigen specificity and restriction by self MHC Class I molecules; (b) limited TCR V beta gene usage; (c) ability to inhibit antigen-specific, MHC Class II restricted, Th proliferative responses; and (d) capacity to downregulate and/or inhibit the upregulation by Th of CD40, CD80, and CD86 molecules on APCs.
135 9822287 Blood-derived DC up-regulated MHC class II, CD54, CD80 and CD86 after exposure to WV vaccine, indicating their functional maturation, but were only moderately affected by subunit (SU) vaccines.
136 9822287 The production of IL-2 and interferon-gamma (IFN-gamma) by PBMC was also strongly stimulated by WV, but much less by SU vaccines, among which the v-SU vaccine was a better stimulator of IL-2 secretion.
137 9829733 High enrichment of CD34+ HSCs was obtained using an immunomagnetic bead cell separation device.
138 9829733 After separation, the negative fraction of mobilized PBMCs from normal donors and cancer patients contained undetectable levels of CD34+ HSCs by flow cytometry.
139 9829733 This fraction of cells was then subjected to plastic adherence, and the adherent cells were cultured for 7 days in GM-CSF (100 ng/ml) and interleukin 4 (50 ng/ml) followed by an additional 7 days in GM-CSF, interleukin 4, and tumor necrosis factor alpha (10 ng/ml) to generate DCs.
140 9829733 Harvested DCs represented yields of 4.1+/-1.4 and 5.8+/-5.4% of the initial cells plated from the CD34+ cell-depleted mobilized PBMCs of normal donors and cancer patients, respectively, and displayed a high level expression of CD80, CD86, HLA-DR, and CD11c but not CD14.
141 9829733 Collectively, these results demonstrate the feasibility of obtaining both DCs and CD34+ HSCs from the same leukapheresis collection from G-CSF-primed normal donors and cancer patients in sufficient numbers for the purpose of combined PBSCT and immunization strategies.
142 9930341 Vaccine effect of granulocyte-macrophage colony-stimulating factor or CD80 gene-transduced murine hematopoietic tumor cells and their cooperative enhancement of antitumor immunity.
143 9930341 To develop immunogene therapy targeting minimal residual hematopoietic tumor cells in patients, we transduced murine GM-CSF or CD80 gene into murine WEHI 3B myelomonocytic leukemia and EL-4 thymic lymphoma cells using retroviral vectors and evaluated their effects on inducing antitumor responses in syngeneic host mice.
144 9930341 Subcutaneously injected GM-CSF- and CD80 gene-transduced WEHI 3B (GMCSF/WEHI/3.2 or CD80/WEHI/1.8, respectively) cells lost their original tumorigenicity in immunocompetent syngeneic mice.
145 9930341 Results from tumor inoculation experiments using athymic nude mice suggested that the rejection of GMCSF/WEHI/3.2 in immunocompetent mice depended fully on T cells and that of CD80/WEHI 1.8 depended partly on T cells and partly on NK cells.
146 9930341 In both WEHI 3B and EL-4 models, irradiated GM-CSF gene-transduced cells provided strong immuno-protection against wild-type cells, but irradiated CD80 gene-transduced cells did not.
147 9930341 A remarkably high cooperative effect was obtained when irradiated GMCSF/EL-4 and CD80/EL-4 were inoculated together.
148 9930341 These results suggested that the tumor vaccine effect is efficiently enhanced by GM-CSF gene transduction and CD80 gene transduction induces some protective antitumor immunity in co-operation with GM-CSF gene transduction.
149 9930341 Vaccine effect of granulocyte-macrophage colony-stimulating factor or CD80 gene-transduced murine hematopoietic tumor cells and their cooperative enhancement of antitumor immunity.
150 9930341 To develop immunogene therapy targeting minimal residual hematopoietic tumor cells in patients, we transduced murine GM-CSF or CD80 gene into murine WEHI 3B myelomonocytic leukemia and EL-4 thymic lymphoma cells using retroviral vectors and evaluated their effects on inducing antitumor responses in syngeneic host mice.
151 9930341 Subcutaneously injected GM-CSF- and CD80 gene-transduced WEHI 3B (GMCSF/WEHI/3.2 or CD80/WEHI/1.8, respectively) cells lost their original tumorigenicity in immunocompetent syngeneic mice.
152 9930341 Results from tumor inoculation experiments using athymic nude mice suggested that the rejection of GMCSF/WEHI/3.2 in immunocompetent mice depended fully on T cells and that of CD80/WEHI 1.8 depended partly on T cells and partly on NK cells.
153 9930341 In both WEHI 3B and EL-4 models, irradiated GM-CSF gene-transduced cells provided strong immuno-protection against wild-type cells, but irradiated CD80 gene-transduced cells did not.
154 9930341 A remarkably high cooperative effect was obtained when irradiated GMCSF/EL-4 and CD80/EL-4 were inoculated together.
155 9930341 These results suggested that the tumor vaccine effect is efficiently enhanced by GM-CSF gene transduction and CD80 gene transduction induces some protective antitumor immunity in co-operation with GM-CSF gene transduction.
156 9930341 Vaccine effect of granulocyte-macrophage colony-stimulating factor or CD80 gene-transduced murine hematopoietic tumor cells and their cooperative enhancement of antitumor immunity.
157 9930341 To develop immunogene therapy targeting minimal residual hematopoietic tumor cells in patients, we transduced murine GM-CSF or CD80 gene into murine WEHI 3B myelomonocytic leukemia and EL-4 thymic lymphoma cells using retroviral vectors and evaluated their effects on inducing antitumor responses in syngeneic host mice.
158 9930341 Subcutaneously injected GM-CSF- and CD80 gene-transduced WEHI 3B (GMCSF/WEHI/3.2 or CD80/WEHI/1.8, respectively) cells lost their original tumorigenicity in immunocompetent syngeneic mice.
159 9930341 Results from tumor inoculation experiments using athymic nude mice suggested that the rejection of GMCSF/WEHI/3.2 in immunocompetent mice depended fully on T cells and that of CD80/WEHI 1.8 depended partly on T cells and partly on NK cells.
160 9930341 In both WEHI 3B and EL-4 models, irradiated GM-CSF gene-transduced cells provided strong immuno-protection against wild-type cells, but irradiated CD80 gene-transduced cells did not.
161 9930341 A remarkably high cooperative effect was obtained when irradiated GMCSF/EL-4 and CD80/EL-4 were inoculated together.
162 9930341 These results suggested that the tumor vaccine effect is efficiently enhanced by GM-CSF gene transduction and CD80 gene transduction induces some protective antitumor immunity in co-operation with GM-CSF gene transduction.
163 9930341 Vaccine effect of granulocyte-macrophage colony-stimulating factor or CD80 gene-transduced murine hematopoietic tumor cells and their cooperative enhancement of antitumor immunity.
164 9930341 To develop immunogene therapy targeting minimal residual hematopoietic tumor cells in patients, we transduced murine GM-CSF or CD80 gene into murine WEHI 3B myelomonocytic leukemia and EL-4 thymic lymphoma cells using retroviral vectors and evaluated their effects on inducing antitumor responses in syngeneic host mice.
165 9930341 Subcutaneously injected GM-CSF- and CD80 gene-transduced WEHI 3B (GMCSF/WEHI/3.2 or CD80/WEHI/1.8, respectively) cells lost their original tumorigenicity in immunocompetent syngeneic mice.
166 9930341 Results from tumor inoculation experiments using athymic nude mice suggested that the rejection of GMCSF/WEHI/3.2 in immunocompetent mice depended fully on T cells and that of CD80/WEHI 1.8 depended partly on T cells and partly on NK cells.
167 9930341 In both WEHI 3B and EL-4 models, irradiated GM-CSF gene-transduced cells provided strong immuno-protection against wild-type cells, but irradiated CD80 gene-transduced cells did not.
168 9930341 A remarkably high cooperative effect was obtained when irradiated GMCSF/EL-4 and CD80/EL-4 were inoculated together.
169 9930341 These results suggested that the tumor vaccine effect is efficiently enhanced by GM-CSF gene transduction and CD80 gene transduction induces some protective antitumor immunity in co-operation with GM-CSF gene transduction.
170 9930341 Vaccine effect of granulocyte-macrophage colony-stimulating factor or CD80 gene-transduced murine hematopoietic tumor cells and their cooperative enhancement of antitumor immunity.
171 9930341 To develop immunogene therapy targeting minimal residual hematopoietic tumor cells in patients, we transduced murine GM-CSF or CD80 gene into murine WEHI 3B myelomonocytic leukemia and EL-4 thymic lymphoma cells using retroviral vectors and evaluated their effects on inducing antitumor responses in syngeneic host mice.
172 9930341 Subcutaneously injected GM-CSF- and CD80 gene-transduced WEHI 3B (GMCSF/WEHI/3.2 or CD80/WEHI/1.8, respectively) cells lost their original tumorigenicity in immunocompetent syngeneic mice.
173 9930341 Results from tumor inoculation experiments using athymic nude mice suggested that the rejection of GMCSF/WEHI/3.2 in immunocompetent mice depended fully on T cells and that of CD80/WEHI 1.8 depended partly on T cells and partly on NK cells.
174 9930341 In both WEHI 3B and EL-4 models, irradiated GM-CSF gene-transduced cells provided strong immuno-protection against wild-type cells, but irradiated CD80 gene-transduced cells did not.
175 9930341 A remarkably high cooperative effect was obtained when irradiated GMCSF/EL-4 and CD80/EL-4 were inoculated together.
176 9930341 These results suggested that the tumor vaccine effect is efficiently enhanced by GM-CSF gene transduction and CD80 gene transduction induces some protective antitumor immunity in co-operation with GM-CSF gene transduction.
177 9930341 Vaccine effect of granulocyte-macrophage colony-stimulating factor or CD80 gene-transduced murine hematopoietic tumor cells and their cooperative enhancement of antitumor immunity.
178 9930341 To develop immunogene therapy targeting minimal residual hematopoietic tumor cells in patients, we transduced murine GM-CSF or CD80 gene into murine WEHI 3B myelomonocytic leukemia and EL-4 thymic lymphoma cells using retroviral vectors and evaluated their effects on inducing antitumor responses in syngeneic host mice.
179 9930341 Subcutaneously injected GM-CSF- and CD80 gene-transduced WEHI 3B (GMCSF/WEHI/3.2 or CD80/WEHI/1.8, respectively) cells lost their original tumorigenicity in immunocompetent syngeneic mice.
180 9930341 Results from tumor inoculation experiments using athymic nude mice suggested that the rejection of GMCSF/WEHI/3.2 in immunocompetent mice depended fully on T cells and that of CD80/WEHI 1.8 depended partly on T cells and partly on NK cells.
181 9930341 In both WEHI 3B and EL-4 models, irradiated GM-CSF gene-transduced cells provided strong immuno-protection against wild-type cells, but irradiated CD80 gene-transduced cells did not.
182 9930341 A remarkably high cooperative effect was obtained when irradiated GMCSF/EL-4 and CD80/EL-4 were inoculated together.
183 9930341 These results suggested that the tumor vaccine effect is efficiently enhanced by GM-CSF gene transduction and CD80 gene transduction induces some protective antitumor immunity in co-operation with GM-CSF gene transduction.
184 9930341 Vaccine effect of granulocyte-macrophage colony-stimulating factor or CD80 gene-transduced murine hematopoietic tumor cells and their cooperative enhancement of antitumor immunity.
185 9930341 To develop immunogene therapy targeting minimal residual hematopoietic tumor cells in patients, we transduced murine GM-CSF or CD80 gene into murine WEHI 3B myelomonocytic leukemia and EL-4 thymic lymphoma cells using retroviral vectors and evaluated their effects on inducing antitumor responses in syngeneic host mice.
186 9930341 Subcutaneously injected GM-CSF- and CD80 gene-transduced WEHI 3B (GMCSF/WEHI/3.2 or CD80/WEHI/1.8, respectively) cells lost their original tumorigenicity in immunocompetent syngeneic mice.
187 9930341 Results from tumor inoculation experiments using athymic nude mice suggested that the rejection of GMCSF/WEHI/3.2 in immunocompetent mice depended fully on T cells and that of CD80/WEHI 1.8 depended partly on T cells and partly on NK cells.
188 9930341 In both WEHI 3B and EL-4 models, irradiated GM-CSF gene-transduced cells provided strong immuno-protection against wild-type cells, but irradiated CD80 gene-transduced cells did not.
189 9930341 A remarkably high cooperative effect was obtained when irradiated GMCSF/EL-4 and CD80/EL-4 were inoculated together.
190 9930341 These results suggested that the tumor vaccine effect is efficiently enhanced by GM-CSF gene transduction and CD80 gene transduction induces some protective antitumor immunity in co-operation with GM-CSF gene transduction.
191 10026920 Immunization of metastatic breast cancer patients with CD80-modified breast cancer cells and GM-CSF.
192 10092787 Proliferative responses and production of the Th1 cytokines, IL-2 and IFN-gamma, were reduced in T cells responsive to PLP139-151.
193 10092787 In the brains of mice that were successfully vaccinated, mRNA for IL-2, IL-15, and IFN-gamma were reduced.
194 10092787 DNA immunization with the myelin minigene for PLP-altered expression of B7.1 (CD80), and B7.2 (CD86) on APCs in the spleen.
195 10228040 These noncytolytic CD4+ T cells synthesize large quantities of type 2 cytokines such as IL-4 and IL-10 on stimulation with the autologous APC or tumor cells in an MHC class II-restricted manner.
196 10228040 The supernatant factor also exhibits a marked inhibitory effect on the expression of the costimulatory molecules, CD80 and CD86, by APC.
197 10382760 In vitro derived DC were infected with BCG, which induced their maturation, as shown by the increased expression of MHC class II antigens, CD80 and CD86 co-stimulatory molecules.
198 10382760 The synthesis of mRNA for IL-1, IL-6, IL-12, IL-10 and IL-1 receptor antagonist was also enhanced.
199 10421650 B7-1 (CD80)-gene transfer combined with interleukin-12 administration elicits protective and therapeutic immunity against mouse hepatocellular carcinoma.
200 10421650 To try to find a way to prevent this, we examined the combined effectiveness of B7-1 (CD80)-gene transfer and interleukin-12 (IL-12) on the induction of protective antitumor immunity against poorly immunogenic BNL1ME A.7R. 1 (BNL) mouse HCC cells.
201 10421650 In vivo lymphocyte subset depletion study indicated that the combined antitumor effect was dependent on the presence of both CD8(+) and CD4(+) T cells.
202 10421650 B7-1 (CD80)-gene transfer combined with interleukin-12 administration elicits protective and therapeutic immunity against mouse hepatocellular carcinoma.
203 10421650 To try to find a way to prevent this, we examined the combined effectiveness of B7-1 (CD80)-gene transfer and interleukin-12 (IL-12) on the induction of protective antitumor immunity against poorly immunogenic BNL1ME A.7R. 1 (BNL) mouse HCC cells.
204 10421650 In vivo lymphocyte subset depletion study indicated that the combined antitumor effect was dependent on the presence of both CD8(+) and CD4(+) T cells.
205 10455440 The effects of the co-expression of EGFP and immunomodulators (CD80 plus GM-CSF) were also investigated as an irradiated leukemia vaccine.
206 10477566 DCs incubated with recombinant S. gordonii were much more efficient than DCs pulsed with soluble C-fragment of tetanus toxin at stimulating specific CD4+ T cells as determined by cell proliferation and IFN-gamma release.
207 10477566 In particular, S. gordonii dose-dependently up-regulated expression of membrane molecules (MHC I and II, CD80, CD86, CD54, CD40, CD83) and reduced both phagocytic and endocytic activities.
208 10477566 Furthermore, bacteria promoted in a dose-dependent manner DC release of cytokines (IL-6, TNF-alpha, IL-1beta, IL-12, TGF-beta, and IL-10) and of the chemokines IL-8, RANTES, IFN-gamma-inducible protein-10, and monokine induced by IFN-gamma.
209 10477593 Human fibroblasts transduced with CD80 or CD86 efficiently trans-costimulate CD4+ and CD8+ T lymphocytes in HLA-restricted reactions: implications for immune augmentation cancer therapy and autoimmunity.
210 10477593 We have evaluated the efficiency of CD80- and CD86-mediated trans-costimulation in the activation of human CD8+ and CD4+ T lymphocytes in MHC class I- and class II-restricted lymphoproliferation reactions.
211 10477593 Our studies demonstrate that the efficiency of CD80- or CD86-mediated trans-costimulation of purified human CD8+ and CD4+ T lymphocytes is comparable to cis-costimulation under defined conditions.
212 10477593 Human fibroblasts transduced with CD80 or CD86 efficiently trans-costimulate CD4+ and CD8+ T lymphocytes in HLA-restricted reactions: implications for immune augmentation cancer therapy and autoimmunity.
213 10477593 We have evaluated the efficiency of CD80- and CD86-mediated trans-costimulation in the activation of human CD8+ and CD4+ T lymphocytes in MHC class I- and class II-restricted lymphoproliferation reactions.
214 10477593 Our studies demonstrate that the efficiency of CD80- or CD86-mediated trans-costimulation of purified human CD8+ and CD4+ T lymphocytes is comparable to cis-costimulation under defined conditions.
215 10477593 Human fibroblasts transduced with CD80 or CD86 efficiently trans-costimulate CD4+ and CD8+ T lymphocytes in HLA-restricted reactions: implications for immune augmentation cancer therapy and autoimmunity.
216 10477593 We have evaluated the efficiency of CD80- and CD86-mediated trans-costimulation in the activation of human CD8+ and CD4+ T lymphocytes in MHC class I- and class II-restricted lymphoproliferation reactions.
217 10477593 Our studies demonstrate that the efficiency of CD80- or CD86-mediated trans-costimulation of purified human CD8+ and CD4+ T lymphocytes is comparable to cis-costimulation under defined conditions.
218 10486153 They expressed a set of DC-associated markers, such as MHC class II, CD1a, CD4, CD11a, CD40, CD58, CD80, CD83, CD86, and CXCR4.
219 10490961 In parallel, CT induced up-regulation of CD80 and CD86 on these Flt3L-expanded DC.
220 10498243 Combination of CD80 and granulocyte-macrophage colony-stimulating factor coexpression by a leukemia cell vaccine: preclinical studies in a murine model recapitulating Philadelphia chromosome-positive acute lymphoblastic leukemia.
221 10498243 We compared the efficacy of BM185 cell vaccine expressing CD80 alone or in combination with IL-2 or GM-CSF.
222 10498243 Mice injected with viable BM185 leukemia cells modified to express CD80 and GM-CSF (BM185/CD80+GM-CSF) showed the highest leukemia rejection rates.
223 10498243 Cell vaccines consisting of irradiated BM185/CD80+GM-CSF cells administered subcutaneously stimulated a potent cytotoxic T lymphocyte (CTL) response against parental BM185.
224 10498243 Administration of the BM185/CD80+GM-CSF cell vaccine before intravenous challenge with parental cells caused strong inhibition of leukemia development.
225 10498243 The immunization efficacy of the BM185/CD80+ GM-CSF cell vaccine was directly correlated with the percentage of cells expressing the transgenes.
226 10498243 In all, this preclinical study shows that leukemia cell vaccines coexpressing CD80 and GM-CSF can potentially be explored for immunotherapy in Ph+ ALL patients.
227 10498243 Combination of CD80 and granulocyte-macrophage colony-stimulating factor coexpression by a leukemia cell vaccine: preclinical studies in a murine model recapitulating Philadelphia chromosome-positive acute lymphoblastic leukemia.
228 10498243 We compared the efficacy of BM185 cell vaccine expressing CD80 alone or in combination with IL-2 or GM-CSF.
229 10498243 Mice injected with viable BM185 leukemia cells modified to express CD80 and GM-CSF (BM185/CD80+GM-CSF) showed the highest leukemia rejection rates.
230 10498243 Cell vaccines consisting of irradiated BM185/CD80+GM-CSF cells administered subcutaneously stimulated a potent cytotoxic T lymphocyte (CTL) response against parental BM185.
231 10498243 Administration of the BM185/CD80+GM-CSF cell vaccine before intravenous challenge with parental cells caused strong inhibition of leukemia development.
232 10498243 The immunization efficacy of the BM185/CD80+ GM-CSF cell vaccine was directly correlated with the percentage of cells expressing the transgenes.
233 10498243 In all, this preclinical study shows that leukemia cell vaccines coexpressing CD80 and GM-CSF can potentially be explored for immunotherapy in Ph+ ALL patients.
234 10498243 Combination of CD80 and granulocyte-macrophage colony-stimulating factor coexpression by a leukemia cell vaccine: preclinical studies in a murine model recapitulating Philadelphia chromosome-positive acute lymphoblastic leukemia.
235 10498243 We compared the efficacy of BM185 cell vaccine expressing CD80 alone or in combination with IL-2 or GM-CSF.
236 10498243 Mice injected with viable BM185 leukemia cells modified to express CD80 and GM-CSF (BM185/CD80+GM-CSF) showed the highest leukemia rejection rates.
237 10498243 Cell vaccines consisting of irradiated BM185/CD80+GM-CSF cells administered subcutaneously stimulated a potent cytotoxic T lymphocyte (CTL) response against parental BM185.
238 10498243 Administration of the BM185/CD80+GM-CSF cell vaccine before intravenous challenge with parental cells caused strong inhibition of leukemia development.
239 10498243 The immunization efficacy of the BM185/CD80+ GM-CSF cell vaccine was directly correlated with the percentage of cells expressing the transgenes.
240 10498243 In all, this preclinical study shows that leukemia cell vaccines coexpressing CD80 and GM-CSF can potentially be explored for immunotherapy in Ph+ ALL patients.
241 10498243 Combination of CD80 and granulocyte-macrophage colony-stimulating factor coexpression by a leukemia cell vaccine: preclinical studies in a murine model recapitulating Philadelphia chromosome-positive acute lymphoblastic leukemia.
242 10498243 We compared the efficacy of BM185 cell vaccine expressing CD80 alone or in combination with IL-2 or GM-CSF.
243 10498243 Mice injected with viable BM185 leukemia cells modified to express CD80 and GM-CSF (BM185/CD80+GM-CSF) showed the highest leukemia rejection rates.
244 10498243 Cell vaccines consisting of irradiated BM185/CD80+GM-CSF cells administered subcutaneously stimulated a potent cytotoxic T lymphocyte (CTL) response against parental BM185.
245 10498243 Administration of the BM185/CD80+GM-CSF cell vaccine before intravenous challenge with parental cells caused strong inhibition of leukemia development.
246 10498243 The immunization efficacy of the BM185/CD80+ GM-CSF cell vaccine was directly correlated with the percentage of cells expressing the transgenes.
247 10498243 In all, this preclinical study shows that leukemia cell vaccines coexpressing CD80 and GM-CSF can potentially be explored for immunotherapy in Ph+ ALL patients.
248 10498243 Combination of CD80 and granulocyte-macrophage colony-stimulating factor coexpression by a leukemia cell vaccine: preclinical studies in a murine model recapitulating Philadelphia chromosome-positive acute lymphoblastic leukemia.
249 10498243 We compared the efficacy of BM185 cell vaccine expressing CD80 alone or in combination with IL-2 or GM-CSF.
250 10498243 Mice injected with viable BM185 leukemia cells modified to express CD80 and GM-CSF (BM185/CD80+GM-CSF) showed the highest leukemia rejection rates.
251 10498243 Cell vaccines consisting of irradiated BM185/CD80+GM-CSF cells administered subcutaneously stimulated a potent cytotoxic T lymphocyte (CTL) response against parental BM185.
252 10498243 Administration of the BM185/CD80+GM-CSF cell vaccine before intravenous challenge with parental cells caused strong inhibition of leukemia development.
253 10498243 The immunization efficacy of the BM185/CD80+ GM-CSF cell vaccine was directly correlated with the percentage of cells expressing the transgenes.
254 10498243 In all, this preclinical study shows that leukemia cell vaccines coexpressing CD80 and GM-CSF can potentially be explored for immunotherapy in Ph+ ALL patients.
255 10498243 Combination of CD80 and granulocyte-macrophage colony-stimulating factor coexpression by a leukemia cell vaccine: preclinical studies in a murine model recapitulating Philadelphia chromosome-positive acute lymphoblastic leukemia.
256 10498243 We compared the efficacy of BM185 cell vaccine expressing CD80 alone or in combination with IL-2 or GM-CSF.
257 10498243 Mice injected with viable BM185 leukemia cells modified to express CD80 and GM-CSF (BM185/CD80+GM-CSF) showed the highest leukemia rejection rates.
258 10498243 Cell vaccines consisting of irradiated BM185/CD80+GM-CSF cells administered subcutaneously stimulated a potent cytotoxic T lymphocyte (CTL) response against parental BM185.
259 10498243 Administration of the BM185/CD80+GM-CSF cell vaccine before intravenous challenge with parental cells caused strong inhibition of leukemia development.
260 10498243 The immunization efficacy of the BM185/CD80+ GM-CSF cell vaccine was directly correlated with the percentage of cells expressing the transgenes.
261 10498243 In all, this preclinical study shows that leukemia cell vaccines coexpressing CD80 and GM-CSF can potentially be explored for immunotherapy in Ph+ ALL patients.
262 10498243 Combination of CD80 and granulocyte-macrophage colony-stimulating factor coexpression by a leukemia cell vaccine: preclinical studies in a murine model recapitulating Philadelphia chromosome-positive acute lymphoblastic leukemia.
263 10498243 We compared the efficacy of BM185 cell vaccine expressing CD80 alone or in combination with IL-2 or GM-CSF.
264 10498243 Mice injected with viable BM185 leukemia cells modified to express CD80 and GM-CSF (BM185/CD80+GM-CSF) showed the highest leukemia rejection rates.
265 10498243 Cell vaccines consisting of irradiated BM185/CD80+GM-CSF cells administered subcutaneously stimulated a potent cytotoxic T lymphocyte (CTL) response against parental BM185.
266 10498243 Administration of the BM185/CD80+GM-CSF cell vaccine before intravenous challenge with parental cells caused strong inhibition of leukemia development.
267 10498243 The immunization efficacy of the BM185/CD80+ GM-CSF cell vaccine was directly correlated with the percentage of cells expressing the transgenes.
268 10498243 In all, this preclinical study shows that leukemia cell vaccines coexpressing CD80 and GM-CSF can potentially be explored for immunotherapy in Ph+ ALL patients.
269 10498601 Rapid induction of CD40 on a subset of granulocyte colony-stimulating factor-mobilized CD34(+) blood cells identifies myeloid committed progenitors and permits selection of nonimmunogenic CD40(-) progenitor cells.
270 10498601 CD40 antigen is a costimulatory molecule highly expressed on dendritic cells (DC) and activated B cells, which induces T-cell proliferation through the binding with CD40L receptor.
271 10498601 CD40, CD80, and CD86 antigens were constitutively expressed on 3.2% +/- 4.5%, 0%, and 1.8% +/- 1.2% CD34(+) blood cells, respectively.
272 10498601 However, after 24 hours in liquid culture with medium alone, or with tumor-necrosis-factor-alpha (TNF-alpha), or with allogeneic mononuclear cells 10.8% +/- 3.8%, 75.3% +/- 15.0% and 53. 7% +/- 17.0% CD34(+) blood cells, respectively, became CD40(+).
273 10498601 After incubation for 24 hours with TNF-alpha CD34(+)CD40(+) blood cells expressed only myeloid markers and contained less than 5% CD86(+) and CD80(+) cells.
274 10498601 Also, a 24-hour priming with TNF-alpha or ligation of CD40 significantly increased the CD34(+) blood cells alloantigen presenting function.
275 10498601 Finally, purified CD34(+)CD40(+) blood cells stimulated an alloreactive T-cell response in MLC, were enriched in granulocytic, monocytic, and dendritic precursors, and generated high numbers of DC in 11-14 d liquid cultures with GM-CSF, SCF, TNF-alpha and FLT-3L.
276 10498601 In conclusion, a short incubation with TNF-alpha allows the selection of CD40(+) blood progenitors, which may be a useful source of DC precursors for antitumor vaccine studies, and also a CD34(+)CD40(-) blood cell fraction that could be exploited in innovative strategies of allogeneic transplantation across HLA barriers.
277 10498601 Rapid induction of CD40 on a subset of granulocyte colony-stimulating factor-mobilized CD34(+) blood cells identifies myeloid committed progenitors and permits selection of nonimmunogenic CD40(-) progenitor cells.
278 10498601 CD40 antigen is a costimulatory molecule highly expressed on dendritic cells (DC) and activated B cells, which induces T-cell proliferation through the binding with CD40L receptor.
279 10498601 CD40, CD80, and CD86 antigens were constitutively expressed on 3.2% +/- 4.5%, 0%, and 1.8% +/- 1.2% CD34(+) blood cells, respectively.
280 10498601 However, after 24 hours in liquid culture with medium alone, or with tumor-necrosis-factor-alpha (TNF-alpha), or with allogeneic mononuclear cells 10.8% +/- 3.8%, 75.3% +/- 15.0% and 53. 7% +/- 17.0% CD34(+) blood cells, respectively, became CD40(+).
281 10498601 After incubation for 24 hours with TNF-alpha CD34(+)CD40(+) blood cells expressed only myeloid markers and contained less than 5% CD86(+) and CD80(+) cells.
282 10498601 Also, a 24-hour priming with TNF-alpha or ligation of CD40 significantly increased the CD34(+) blood cells alloantigen presenting function.
283 10498601 Finally, purified CD34(+)CD40(+) blood cells stimulated an alloreactive T-cell response in MLC, were enriched in granulocytic, monocytic, and dendritic precursors, and generated high numbers of DC in 11-14 d liquid cultures with GM-CSF, SCF, TNF-alpha and FLT-3L.
284 10498601 In conclusion, a short incubation with TNF-alpha allows the selection of CD40(+) blood progenitors, which may be a useful source of DC precursors for antitumor vaccine studies, and also a CD34(+)CD40(-) blood cell fraction that could be exploited in innovative strategies of allogeneic transplantation across HLA barriers.
285 10555997 Previously, we demonstrated that a novel low-molecular-weight synthetic immune response modifier, R-848, induces IL-12 and IFN-alpha secretion from monocytes and macrophages.
286 10555997 Characteristic of dendritic cell maturation, R-848 treatment induces cell surface expression of CD83 and increases cell surface expression of CD80, CD86, CD40, and HLA-DR.
287 10555997 Additionally, R-848 induces cytokine (IL-6, IL-12, TNF-alpha, IFN-alpha) and chemokine (IL-8, MIP-1alpha, MCP-1) secretion from dendritic cells.
288 10559341 We now show that infection by rAd enhances the immunostimulatory capacity of immature human monocyte-derived DC through the upregulation of the costimulatory molecules CD80, CD86, and CD40 and the major histocompatibility complex class I and II molecules.
289 10559341 Although rAd infection fails to induce the secretion of interleukin-12 (IL-12) and only marginally induces the expression of the DC maturation marker CD83, it acts in synergy with CD40 triggering in rendering DC fully mature. rAd-infected DC triggered through CD40 produce more IL-12 and are more efficient in eliciting T-helper type 1 responses than DC activated by CD40 triggering only. rAd lacking one or more of the early regions, E1, E2A, E3, and E4, which play an important role in virus-host cell interactions are equally capable of DC activation.
290 10607486 After a 6-h incubation, phenotypic analysis of control-, imiquimod-, or R-848-treated LC indicated that such antigen-presenting cells were in an "intermediate" state of maturation (CD1a(+), HLA-DR, DP, DQ(bright+), CD40(low+), CD86(high+), and CD80(low+)).
291 10607486 RNase protection assays demonstrated that either imiquimod or R-848 treatments increased steady-state transcripts encoding for IL-12 p40, IL-1beta, TNF-alpha, and IL-1 receptor antagonist by LC.
292 10623812 Vaccination with mouse mammary adenocarcinoma cells coexpressing B7-1 (CD80) and B7-2 (CD86) discloses the dominant effect of B7-1 in the induction of antitumor immunity.
293 10623812 Nonreplicating TS/A mammary adenocarcinoma cells expressing B7-2 (CD86) (TS/A-2) are more immunogenic than those expressing B7-1 (CD80) (TS/A-1), indicating that B7-1 and B7-2 display nonredundant costimulatory effects in inducing antitumor responses.
294 10623812 The expression of B7-1 also modifies quantitatively the balance of endogenous IFN-gamma and IL-4 induced in vivo by TS/A-2 vaccines.
295 10623812 In fact, we find that vaccination with TS/A-2/1 cells results in the production of more IFN-gamma and less IL-4 than TS/A-2 vaccines, a pattern comparable to that induced by TS/A-1 cells.
296 10623812 Vaccination with mouse mammary adenocarcinoma cells coexpressing B7-1 (CD80) and B7-2 (CD86) discloses the dominant effect of B7-1 in the induction of antitumor immunity.
297 10623812 Nonreplicating TS/A mammary adenocarcinoma cells expressing B7-2 (CD86) (TS/A-2) are more immunogenic than those expressing B7-1 (CD80) (TS/A-1), indicating that B7-1 and B7-2 display nonredundant costimulatory effects in inducing antitumor responses.
298 10623812 The expression of B7-1 also modifies quantitatively the balance of endogenous IFN-gamma and IL-4 induced in vivo by TS/A-2 vaccines.
299 10623812 In fact, we find that vaccination with TS/A-2/1 cells results in the production of more IFN-gamma and less IL-4 than TS/A-2 vaccines, a pattern comparable to that induced by TS/A-1 cells.
300 10637450 Interferon-alpha (IFN-alpha) or CD80 transduction of tumor cells individually reduces tumorigenicity and enhances antitumor responses.
301 10637450 Here, we report that the combination of IFN-alpha and CD80 cancer gene therapy in poorly immunogenic murine tumor models, the colorectal adenocarcinoma cell line MC38, and the methylcholanthrene-induced fibrosarcoma cell line MCA205 reduces tumor growth more efficiently without affecting in vitro growth.
302 10637450 Synergistic effects were observed when IFN-alpha- and CD80-transduced tumor cells were mixed and inoculated.
303 10637450 These admixed cells were rejected by 14 of 15 (MC38) or seven of 15 mice (MCA205), whereas, a mixture of IFN-alpha and Neo cells or CD80 and Neo cells led to tumors associated with progressive growth.
304 10637450 The therapeutic efficacy with established WT MC38 tumors was shown when mice were treated with a vaccine consisting of repetitive injections of IFN-alpha- and CD80-transduced MC38 cells into the contralateral flank (P < 0.01).
305 10637450 This treatment was associated with accumulation of CD4+, CD8+ cells and dendritic cells within the established tumor, demonstrating induction of antitumor immune responses.
306 10637450 Combination gene therapy using IFN-alpha and CD80 is an effective immune therapy of cancer and could be considered for clinical trials.
307 10637450 Interferon-alpha (IFN-alpha) or CD80 transduction of tumor cells individually reduces tumorigenicity and enhances antitumor responses.
308 10637450 Here, we report that the combination of IFN-alpha and CD80 cancer gene therapy in poorly immunogenic murine tumor models, the colorectal adenocarcinoma cell line MC38, and the methylcholanthrene-induced fibrosarcoma cell line MCA205 reduces tumor growth more efficiently without affecting in vitro growth.
309 10637450 Synergistic effects were observed when IFN-alpha- and CD80-transduced tumor cells were mixed and inoculated.
310 10637450 These admixed cells were rejected by 14 of 15 (MC38) or seven of 15 mice (MCA205), whereas, a mixture of IFN-alpha and Neo cells or CD80 and Neo cells led to tumors associated with progressive growth.
311 10637450 The therapeutic efficacy with established WT MC38 tumors was shown when mice were treated with a vaccine consisting of repetitive injections of IFN-alpha- and CD80-transduced MC38 cells into the contralateral flank (P < 0.01).
312 10637450 This treatment was associated with accumulation of CD4+, CD8+ cells and dendritic cells within the established tumor, demonstrating induction of antitumor immune responses.
313 10637450 Combination gene therapy using IFN-alpha and CD80 is an effective immune therapy of cancer and could be considered for clinical trials.
314 10637450 Interferon-alpha (IFN-alpha) or CD80 transduction of tumor cells individually reduces tumorigenicity and enhances antitumor responses.
315 10637450 Here, we report that the combination of IFN-alpha and CD80 cancer gene therapy in poorly immunogenic murine tumor models, the colorectal adenocarcinoma cell line MC38, and the methylcholanthrene-induced fibrosarcoma cell line MCA205 reduces tumor growth more efficiently without affecting in vitro growth.
316 10637450 Synergistic effects were observed when IFN-alpha- and CD80-transduced tumor cells were mixed and inoculated.
317 10637450 These admixed cells were rejected by 14 of 15 (MC38) or seven of 15 mice (MCA205), whereas, a mixture of IFN-alpha and Neo cells or CD80 and Neo cells led to tumors associated with progressive growth.
318 10637450 The therapeutic efficacy with established WT MC38 tumors was shown when mice were treated with a vaccine consisting of repetitive injections of IFN-alpha- and CD80-transduced MC38 cells into the contralateral flank (P < 0.01).
319 10637450 This treatment was associated with accumulation of CD4+, CD8+ cells and dendritic cells within the established tumor, demonstrating induction of antitumor immune responses.
320 10637450 Combination gene therapy using IFN-alpha and CD80 is an effective immune therapy of cancer and could be considered for clinical trials.
321 10637450 Interferon-alpha (IFN-alpha) or CD80 transduction of tumor cells individually reduces tumorigenicity and enhances antitumor responses.
322 10637450 Here, we report that the combination of IFN-alpha and CD80 cancer gene therapy in poorly immunogenic murine tumor models, the colorectal adenocarcinoma cell line MC38, and the methylcholanthrene-induced fibrosarcoma cell line MCA205 reduces tumor growth more efficiently without affecting in vitro growth.
323 10637450 Synergistic effects were observed when IFN-alpha- and CD80-transduced tumor cells were mixed and inoculated.
324 10637450 These admixed cells were rejected by 14 of 15 (MC38) or seven of 15 mice (MCA205), whereas, a mixture of IFN-alpha and Neo cells or CD80 and Neo cells led to tumors associated with progressive growth.
325 10637450 The therapeutic efficacy with established WT MC38 tumors was shown when mice were treated with a vaccine consisting of repetitive injections of IFN-alpha- and CD80-transduced MC38 cells into the contralateral flank (P < 0.01).
326 10637450 This treatment was associated with accumulation of CD4+, CD8+ cells and dendritic cells within the established tumor, demonstrating induction of antitumor immune responses.
327 10637450 Combination gene therapy using IFN-alpha and CD80 is an effective immune therapy of cancer and could be considered for clinical trials.
328 10637450 Interferon-alpha (IFN-alpha) or CD80 transduction of tumor cells individually reduces tumorigenicity and enhances antitumor responses.
329 10637450 Here, we report that the combination of IFN-alpha and CD80 cancer gene therapy in poorly immunogenic murine tumor models, the colorectal adenocarcinoma cell line MC38, and the methylcholanthrene-induced fibrosarcoma cell line MCA205 reduces tumor growth more efficiently without affecting in vitro growth.
330 10637450 Synergistic effects were observed when IFN-alpha- and CD80-transduced tumor cells were mixed and inoculated.
331 10637450 These admixed cells were rejected by 14 of 15 (MC38) or seven of 15 mice (MCA205), whereas, a mixture of IFN-alpha and Neo cells or CD80 and Neo cells led to tumors associated with progressive growth.
332 10637450 The therapeutic efficacy with established WT MC38 tumors was shown when mice were treated with a vaccine consisting of repetitive injections of IFN-alpha- and CD80-transduced MC38 cells into the contralateral flank (P < 0.01).
333 10637450 This treatment was associated with accumulation of CD4+, CD8+ cells and dendritic cells within the established tumor, demonstrating induction of antitumor immune responses.
334 10637450 Combination gene therapy using IFN-alpha and CD80 is an effective immune therapy of cancer and could be considered for clinical trials.
335 10637450 Interferon-alpha (IFN-alpha) or CD80 transduction of tumor cells individually reduces tumorigenicity and enhances antitumor responses.
336 10637450 Here, we report that the combination of IFN-alpha and CD80 cancer gene therapy in poorly immunogenic murine tumor models, the colorectal adenocarcinoma cell line MC38, and the methylcholanthrene-induced fibrosarcoma cell line MCA205 reduces tumor growth more efficiently without affecting in vitro growth.
337 10637450 Synergistic effects were observed when IFN-alpha- and CD80-transduced tumor cells were mixed and inoculated.
338 10637450 These admixed cells were rejected by 14 of 15 (MC38) or seven of 15 mice (MCA205), whereas, a mixture of IFN-alpha and Neo cells or CD80 and Neo cells led to tumors associated with progressive growth.
339 10637450 The therapeutic efficacy with established WT MC38 tumors was shown when mice were treated with a vaccine consisting of repetitive injections of IFN-alpha- and CD80-transduced MC38 cells into the contralateral flank (P < 0.01).
340 10637450 This treatment was associated with accumulation of CD4+, CD8+ cells and dendritic cells within the established tumor, demonstrating induction of antitumor immune responses.
341 10637450 Combination gene therapy using IFN-alpha and CD80 is an effective immune therapy of cancer and could be considered for clinical trials.
342 10678367 It is well known that tumor cells that express B7 molecules can elicit antitumor immunity, but little is known regarding which B7 molecule, B7-1 (CD80) or B7-2 (CD86), can do so more efficiently.
343 10678367 In vivo depletion of lymphocyte subsets demonstrated that both CD4+ and CD8+ T cells were indispensable for B7-1- or B7-2-dependent antitumor immunity, whereas natural killer cells were not.
344 10689136 The generation of DC from blood monocytes in response to GM-CSF and IL-4 treatment was similar in cells from young and old persons.
345 10689136 The DC population thus obtained had a typical dendritic morphology and expressed DC surface markers, such as HLA class II, CD1a, CD11c, CD54, CD80 and CD86, but not CD14 for a period of up to three weeks in culture.
346 10689136 DC from young and old persons produced IL-12 and TNF-alpha and responded equally well to maturation-inducing stimuli.
347 10699581 Genetically-modified tumors expressing various cytokines, major histocompatibility complex (MHC) molecules, or costimulatory molecules such as B7-1 (CD80) or B7-2 (CD86) can induce tumor-specific immune responses.
348 10730877 Irradiation of genetically modified plasmacytoma vaccines results in upregulation of CD80 molecule expression, IL-2 production and higher therapeutic efficacy of the vaccines.
349 10730877 In this communication, we have demonstrated that irradiation of murine IL-2-producing plasmacytoma vaccines resulted in upregulation of CD80 molecule expression and IL-2 production.
350 10730877 The upregulation of the CD80 membrane molecule expression in X63-m-IL-2 cells was higher after irradiation with 150 Gy than after irradiation with 50 Gy.
351 10730877 The results indicate that upregulation of the CD80 molecule expression and enhanced IL-2 production in irradiated X63-m-IL-2 cells was responsible for the higher therapeutic effectiveness of the irradiated plasmacytoma vaccine.
352 10730877 Irradiation of genetically modified plasmacytoma vaccines results in upregulation of CD80 molecule expression, IL-2 production and higher therapeutic efficacy of the vaccines.
353 10730877 In this communication, we have demonstrated that irradiation of murine IL-2-producing plasmacytoma vaccines resulted in upregulation of CD80 molecule expression and IL-2 production.
354 10730877 The upregulation of the CD80 membrane molecule expression in X63-m-IL-2 cells was higher after irradiation with 150 Gy than after irradiation with 50 Gy.
355 10730877 The results indicate that upregulation of the CD80 molecule expression and enhanced IL-2 production in irradiated X63-m-IL-2 cells was responsible for the higher therapeutic effectiveness of the irradiated plasmacytoma vaccine.
356 10730877 Irradiation of genetically modified plasmacytoma vaccines results in upregulation of CD80 molecule expression, IL-2 production and higher therapeutic efficacy of the vaccines.
357 10730877 In this communication, we have demonstrated that irradiation of murine IL-2-producing plasmacytoma vaccines resulted in upregulation of CD80 molecule expression and IL-2 production.
358 10730877 The upregulation of the CD80 membrane molecule expression in X63-m-IL-2 cells was higher after irradiation with 150 Gy than after irradiation with 50 Gy.
359 10730877 The results indicate that upregulation of the CD80 molecule expression and enhanced IL-2 production in irradiated X63-m-IL-2 cells was responsible for the higher therapeutic effectiveness of the irradiated plasmacytoma vaccine.
360 10730877 Irradiation of genetically modified plasmacytoma vaccines results in upregulation of CD80 molecule expression, IL-2 production and higher therapeutic efficacy of the vaccines.
361 10730877 In this communication, we have demonstrated that irradiation of murine IL-2-producing plasmacytoma vaccines resulted in upregulation of CD80 molecule expression and IL-2 production.
362 10730877 The upregulation of the CD80 membrane molecule expression in X63-m-IL-2 cells was higher after irradiation with 150 Gy than after irradiation with 50 Gy.
363 10730877 The results indicate that upregulation of the CD80 molecule expression and enhanced IL-2 production in irradiated X63-m-IL-2 cells was responsible for the higher therapeutic effectiveness of the irradiated plasmacytoma vaccine.
364 10782864 Immunotherapy with vaccines combining MHC class II/CD80+ tumor cells with interleukin-12 reduces established metastatic disease and stimulates immune effectors and monokine induced by interferon gamma.
365 10782864 Two such mouse models are used in this report to demonstrate the therapeutic efficacy and to probe the mechanisms of a novel combination immunotherapy consisting of the cytokine interleukin-12 (IL-12) combined with a previously described vaccine based on MHC class II, CD80-expressing cells.
366 10782864 C57BL/6 mice with 7-day established intravenous B16 melF10 lung metastases show a similar response following immunotherapy with IL-12 plus a vaccine based on B16 MHC class II, CD80-expressing cells.
367 10782864 In both systems the combination therapy of cells plus IL-12 is more effective than IL-12 or the cellular vaccine alone, although, in the 4T1 system, optimal activity does not require MHC class II and CD80 expression in the vaccine cells.
368 10782864 The cell-based vaccines were originally designed to activate tumor-specific CD4+ T lymphocytes specifically and thereby provide helper activity to tumor-cytotoxic CD8+ T cells, and IL-12 was added to the therapy to facilitate T helper type 1 lymphocyte (Th1) differentiation.
369 10782864 In vivo depletion experiments for CD4+ and CD8+ T cells and natural killer (NK) cells and tumor challenge experiments in beige/nude/XID immunodeficient mice demonstrate that the therapeutic effect is not exclusively dependent on a single cell population, suggesting that T and NK cells are acting together to optimize the response.
370 10782864 IL-12 may also be enhancing the immunotherapy via induction of the chemokine Mig (monokine induced by interferon gamma), because reverse PCR experiments demonstrate that Mig is present in the lungs of mice receiving therapy and is most likely synthesized by the tumor cells.
371 10782864 Immunotherapy with vaccines combining MHC class II/CD80+ tumor cells with interleukin-12 reduces established metastatic disease and stimulates immune effectors and monokine induced by interferon gamma.
372 10782864 Two such mouse models are used in this report to demonstrate the therapeutic efficacy and to probe the mechanisms of a novel combination immunotherapy consisting of the cytokine interleukin-12 (IL-12) combined with a previously described vaccine based on MHC class II, CD80-expressing cells.
373 10782864 C57BL/6 mice with 7-day established intravenous B16 melF10 lung metastases show a similar response following immunotherapy with IL-12 plus a vaccine based on B16 MHC class II, CD80-expressing cells.
374 10782864 In both systems the combination therapy of cells plus IL-12 is more effective than IL-12 or the cellular vaccine alone, although, in the 4T1 system, optimal activity does not require MHC class II and CD80 expression in the vaccine cells.
375 10782864 The cell-based vaccines were originally designed to activate tumor-specific CD4+ T lymphocytes specifically and thereby provide helper activity to tumor-cytotoxic CD8+ T cells, and IL-12 was added to the therapy to facilitate T helper type 1 lymphocyte (Th1) differentiation.
376 10782864 In vivo depletion experiments for CD4+ and CD8+ T cells and natural killer (NK) cells and tumor challenge experiments in beige/nude/XID immunodeficient mice demonstrate that the therapeutic effect is not exclusively dependent on a single cell population, suggesting that T and NK cells are acting together to optimize the response.
377 10782864 IL-12 may also be enhancing the immunotherapy via induction of the chemokine Mig (monokine induced by interferon gamma), because reverse PCR experiments demonstrate that Mig is present in the lungs of mice receiving therapy and is most likely synthesized by the tumor cells.
378 10782864 Immunotherapy with vaccines combining MHC class II/CD80+ tumor cells with interleukin-12 reduces established metastatic disease and stimulates immune effectors and monokine induced by interferon gamma.
379 10782864 Two such mouse models are used in this report to demonstrate the therapeutic efficacy and to probe the mechanisms of a novel combination immunotherapy consisting of the cytokine interleukin-12 (IL-12) combined with a previously described vaccine based on MHC class II, CD80-expressing cells.
380 10782864 C57BL/6 mice with 7-day established intravenous B16 melF10 lung metastases show a similar response following immunotherapy with IL-12 plus a vaccine based on B16 MHC class II, CD80-expressing cells.
381 10782864 In both systems the combination therapy of cells plus IL-12 is more effective than IL-12 or the cellular vaccine alone, although, in the 4T1 system, optimal activity does not require MHC class II and CD80 expression in the vaccine cells.
382 10782864 The cell-based vaccines were originally designed to activate tumor-specific CD4+ T lymphocytes specifically and thereby provide helper activity to tumor-cytotoxic CD8+ T cells, and IL-12 was added to the therapy to facilitate T helper type 1 lymphocyte (Th1) differentiation.
383 10782864 In vivo depletion experiments for CD4+ and CD8+ T cells and natural killer (NK) cells and tumor challenge experiments in beige/nude/XID immunodeficient mice demonstrate that the therapeutic effect is not exclusively dependent on a single cell population, suggesting that T and NK cells are acting together to optimize the response.
384 10782864 IL-12 may also be enhancing the immunotherapy via induction of the chemokine Mig (monokine induced by interferon gamma), because reverse PCR experiments demonstrate that Mig is present in the lungs of mice receiving therapy and is most likely synthesized by the tumor cells.
385 10782864 Immunotherapy with vaccines combining MHC class II/CD80+ tumor cells with interleukin-12 reduces established metastatic disease and stimulates immune effectors and monokine induced by interferon gamma.
386 10782864 Two such mouse models are used in this report to demonstrate the therapeutic efficacy and to probe the mechanisms of a novel combination immunotherapy consisting of the cytokine interleukin-12 (IL-12) combined with a previously described vaccine based on MHC class II, CD80-expressing cells.
387 10782864 C57BL/6 mice with 7-day established intravenous B16 melF10 lung metastases show a similar response following immunotherapy with IL-12 plus a vaccine based on B16 MHC class II, CD80-expressing cells.
388 10782864 In both systems the combination therapy of cells plus IL-12 is more effective than IL-12 or the cellular vaccine alone, although, in the 4T1 system, optimal activity does not require MHC class II and CD80 expression in the vaccine cells.
389 10782864 The cell-based vaccines were originally designed to activate tumor-specific CD4+ T lymphocytes specifically and thereby provide helper activity to tumor-cytotoxic CD8+ T cells, and IL-12 was added to the therapy to facilitate T helper type 1 lymphocyte (Th1) differentiation.
390 10782864 In vivo depletion experiments for CD4+ and CD8+ T cells and natural killer (NK) cells and tumor challenge experiments in beige/nude/XID immunodeficient mice demonstrate that the therapeutic effect is not exclusively dependent on a single cell population, suggesting that T and NK cells are acting together to optimize the response.
391 10782864 IL-12 may also be enhancing the immunotherapy via induction of the chemokine Mig (monokine induced by interferon gamma), because reverse PCR experiments demonstrate that Mig is present in the lungs of mice receiving therapy and is most likely synthesized by the tumor cells.
392 10792499 The expression of major histocompatibility complex class II, CD80, CD86 and CD11c by BMDC after phagocytosing rBCG or inert beads, was inhibited when the BMDC were pretreated with IL-10.
393 10825145 Here, we test in this postsurgical model, a novel cell-based vaccine, combining MHC class II, CD80(B7.1), and SEB superantigen.
394 10825145 These therapeutic effects are particularly noteworthy because: (a) the postoperative model demonstrates that early metastases responsible for morbidity are established by 2 weeks after tumor inoculation with 7 x 10(3) parental 4T1 cells into the mammary gland; (b) the immunotherapy is started 4 weeks after tumor inoculation when the mice contain extensive, pre-established, disseminated metastases; and (c) CD4+ and CD8+ T cells are required for the effect.
395 10841077 For example, coadministration of costimulatory molecules (CD80 and CD86), proinflammatory cytokines (interleukin-1alpha [IL-1alpha], tumor necrosis factor-alpha [TNF-alpha, and TNF-beta), Th1 cytokines (interleukin-2 [IL-2], IL-12, IL-15, and IL-18), Th2 cytokines (IL-4, IL-5, and IL-10), and granulocytes-macrophage colony-stimulating factor (GM-CSF) with DNA vaccine constructs leads to modulation of the magnitude and direction (humoral or cellular) of the immune responses.
396 10841077 To further engineer the immune response in vivo, we compared the induction and regulation of immune responses from the codelivery of chemokine (IL-8, interferon-gamma-inducible protein-10 [gammaIP-10], macrophage inhibitory protein-1alpha [MIP-1alpha], and RANTES) genes with codelivery of cytokine genes.
397 10841077 We observed that coimmunization with IL-8, gammaIP-10, and MIP-1alpha genes increased the antibody response.
398 10841077 We also found that coinjection with IL-8, gammaIP-10, and RANTES resulted in a dramatic enhancement of T helper (Th) proliferation response.
399 10841077 This enhancement of CTL responses observed from the coinjection with RANTES was CD8+ T cell dependent.
400 10843701 Thus, LPS-matured dendritic cells (DC1) promote a Th1 response (increased generation of IFN-gamma and reduced production of IL-4) by Ag-stimulated CD4+ T cells from the DO.11.10 transgenic mouse expressing a TCR specific for an OVA peptide (OVA323-339).
401 10843701 In contrast, a phosphorylcholine-containing glycoprotein, ES-62, secreted by the filarial nematode, Acanthocheilonema viteae, which generates a Th2 Ab response in vivo, is found to induce the maturation of dendritic cells (DC2) with the capacity to induce Th2 responses (increased IL-4 and decreased IFN-gamma).
402 10843701 In addition, we show that the switch to either Th1 or Th2 responses is not effected by differential regulation through CD80 or CD86 and that a Th2 response is achieved in the presence of IL-12.
403 10886404 A strong delayed-type hypersensitivity (DTH) reaction was induced in mice co-injected via the intradermal (i.d.) route with a eukaryotic expression plasmid encoding the CD80 molecule (pCD80) and a plasmid encoding the glycoprotein D of the HSV-2 (pgD).
404 10886404 Furthermore, when spleen cells from these mice were cultured in the presence of inactivated HSV, a significant increase in the expression of interleukin-2 receptor (IL-2R) was observed in the CD4 subset compared with mice immunized only with pgD.
405 10886404 Analysis of cytokine synthesis at the single-cell level indicated that CD80 genes induce a significant increase in the number of interferon-gamma (IFN-gamma)-, IL-2- and IL-4-secreting cells in the spleen.
406 10886404 When a plasmid carrying the CD86 gene (pCD86) was co-injected via the i.m. route with the pgD plasmid, a small decrease in the number of IFN-gamma-secreting cells was observed.
407 10886404 This down-regulation of the immune response was also observed when eukaryotic expression cassettes for CD80 and for CD86 were co-administered with the pgD plasmid via the i.d. route.
408 10886404 A strong delayed-type hypersensitivity (DTH) reaction was induced in mice co-injected via the intradermal (i.d.) route with a eukaryotic expression plasmid encoding the CD80 molecule (pCD80) and a plasmid encoding the glycoprotein D of the HSV-2 (pgD).
409 10886404 Furthermore, when spleen cells from these mice were cultured in the presence of inactivated HSV, a significant increase in the expression of interleukin-2 receptor (IL-2R) was observed in the CD4 subset compared with mice immunized only with pgD.
410 10886404 Analysis of cytokine synthesis at the single-cell level indicated that CD80 genes induce a significant increase in the number of interferon-gamma (IFN-gamma)-, IL-2- and IL-4-secreting cells in the spleen.
411 10886404 When a plasmid carrying the CD86 gene (pCD86) was co-injected via the i.m. route with the pgD plasmid, a small decrease in the number of IFN-gamma-secreting cells was observed.
412 10886404 This down-regulation of the immune response was also observed when eukaryotic expression cassettes for CD80 and for CD86 were co-administered with the pgD plasmid via the i.d. route.
413 10886404 A strong delayed-type hypersensitivity (DTH) reaction was induced in mice co-injected via the intradermal (i.d.) route with a eukaryotic expression plasmid encoding the CD80 molecule (pCD80) and a plasmid encoding the glycoprotein D of the HSV-2 (pgD).
414 10886404 Furthermore, when spleen cells from these mice were cultured in the presence of inactivated HSV, a significant increase in the expression of interleukin-2 receptor (IL-2R) was observed in the CD4 subset compared with mice immunized only with pgD.
415 10886404 Analysis of cytokine synthesis at the single-cell level indicated that CD80 genes induce a significant increase in the number of interferon-gamma (IFN-gamma)-, IL-2- and IL-4-secreting cells in the spleen.
416 10886404 When a plasmid carrying the CD86 gene (pCD86) was co-injected via the i.m. route with the pgD plasmid, a small decrease in the number of IFN-gamma-secreting cells was observed.
417 10886404 This down-regulation of the immune response was also observed when eukaryotic expression cassettes for CD80 and for CD86 were co-administered with the pgD plasmid via the i.d. route.
418 10915850 Monocytes (Mo) were isolated by leukapheresis from 12 donors, purified by elutriation and then cultured for 6 days in sealed bags in AIM-V serum free medium with granulocyte-macrophage colony-stimulating factor (GM-CSF) and interleukin-13 (IL-13).
419 10915850 Cells displayed a characteristic iDC phenotype (CD1a(+), CD14(-), CD80(+), CD86(+), HLA DR(+), CD83(-)), and had potent allogeneic and antigen dependent autologous T cell-stimulatory capacity.
420 10915850 Moreover, iDC could be further differentiated into mature DC by CD40 ligation as assessed by CD83 expression and the upregulation of HLA-DR and costimulatory molecules.
421 10942373 Lentiviral vectors for efficient delivery of CD80 and granulocyte-macrophage- colony-stimulating factor in human acute lymphoblastic leukemia and acute myeloid leukemia cells to induce antileukemic immune responses.
422 10942373 In this study, second-generation lentiviral vectors derived from human immunodeficiency virus 1 were evaluated, with the cytomegalovirus (CMV) promoter driving expression of granulocyte-macrophage-colony-stimulating factor (GM-CSF) and CD80 in separate vectors or in a bicistronic vector.
423 10942373 This stimulation was specifically blocked with monoclonal antibodies reactive against CD80 or by recombinant cytotoxic T-lymphocyte antigen 4-immunoglobulin fusion protein.
424 10942373 Lentiviral vectors for efficient delivery of CD80 and granulocyte-macrophage- colony-stimulating factor in human acute lymphoblastic leukemia and acute myeloid leukemia cells to induce antileukemic immune responses.
425 10942373 In this study, second-generation lentiviral vectors derived from human immunodeficiency virus 1 were evaluated, with the cytomegalovirus (CMV) promoter driving expression of granulocyte-macrophage-colony-stimulating factor (GM-CSF) and CD80 in separate vectors or in a bicistronic vector.
426 10942373 This stimulation was specifically blocked with monoclonal antibodies reactive against CD80 or by recombinant cytotoxic T-lymphocyte antigen 4-immunoglobulin fusion protein.
427 10942373 Lentiviral vectors for efficient delivery of CD80 and granulocyte-macrophage- colony-stimulating factor in human acute lymphoblastic leukemia and acute myeloid leukemia cells to induce antileukemic immune responses.
428 10942373 In this study, second-generation lentiviral vectors derived from human immunodeficiency virus 1 were evaluated, with the cytomegalovirus (CMV) promoter driving expression of granulocyte-macrophage-colony-stimulating factor (GM-CSF) and CD80 in separate vectors or in a bicistronic vector.
429 10942373 This stimulation was specifically blocked with monoclonal antibodies reactive against CD80 or by recombinant cytotoxic T-lymphocyte antigen 4-immunoglobulin fusion protein.
430 11053627 Influenza vaccine stimulated significantly lower production of interferon-gamma (IFN-gamma) compared with live and heat inactivated viruses, whereas both vaccine and heat-inactivated influenza induced lower levels of IFN-alpha compared with live virus.
431 11053627 A significant increase in monocyte expression of CD80, CD86, CD40, and human leukocyte antigen-DR (HLA-DR) was also induced by live influenza virus.
432 11053627 Our results suggest that immunization with live influenza vaccines might induce immune responses that would not be induced by conventional inactivated vaccines, including CTL generation, antiviral IFN-gamma and IFN-alpha cytokine production, and increased antigen presentation and costimulatory capacity on antigen presenting cells (APC).
433 11122109 In these five patients, detection of cytokines by real-time reverse transcription polymerase chain reaction (RT-PCR) revealed that granulocyte-macrophage colony-stimulating factor (GM-CSF) was the most abundant cytokine gene expressed by the T cells that recognized the autologous tumour B cells.
434 11122109 Other activated cytokine genes were gamma-interferon (IFN), interleukin (IL)-2 and tumour necrosis factor (TNF)-alpha, but not IL-4.
435 11122109 CD80 and CD54 were relatively downregulated on the native tumour B cells compared with control normal B cells.
436 11122109 CD80 and CD54 monoclonal antibodies inhibited the specific T-cell DNA synthesis proliferation.
437 11122109 The specific cytokine gene expression could be found in isolated CD4, as well as CD8, T-cell subsets.
438 11122109 This study demonstrated the presence of a potential natural specific CD4, as well as a CD8 type 1 T-cell immunity against the leukaemic CLL tumour B cells in CLL.
439 11122109 In these five patients, detection of cytokines by real-time reverse transcription polymerase chain reaction (RT-PCR) revealed that granulocyte-macrophage colony-stimulating factor (GM-CSF) was the most abundant cytokine gene expressed by the T cells that recognized the autologous tumour B cells.
440 11122109 Other activated cytokine genes were gamma-interferon (IFN), interleukin (IL)-2 and tumour necrosis factor (TNF)-alpha, but not IL-4.
441 11122109 CD80 and CD54 were relatively downregulated on the native tumour B cells compared with control normal B cells.
442 11122109 CD80 and CD54 monoclonal antibodies inhibited the specific T-cell DNA synthesis proliferation.
443 11122109 The specific cytokine gene expression could be found in isolated CD4, as well as CD8, T-cell subsets.
444 11122109 This study demonstrated the presence of a potential natural specific CD4, as well as a CD8 type 1 T-cell immunity against the leukaemic CLL tumour B cells in CLL.
445 11122456 Polymophonuclear cells (PMN) of healthy donors do not express major histocompatibility complex (MHC) class II antigens or the T-cell costimulatory molecules CD80 or CD86.
446 11122456 We now report that, by culturing PMN of healthy donors with autologous serum, interferon-gamma (IFN-gamma) and granulocyte-macrophage colony-stimulating factor (GM-CSF), de novo synthesis of MHC class II, CD80 and CD86 could be induced.
447 11122456 MHC class II-positive PMN acquired the capacity to present staphylococcus enterotoxin to peripheral T cells, apparent as induction of interleukin-2 (IL-2) synthesis and proliferation of the T cells.
448 11122456 Polymophonuclear cells (PMN) of healthy donors do not express major histocompatibility complex (MHC) class II antigens or the T-cell costimulatory molecules CD80 or CD86.
449 11122456 We now report that, by culturing PMN of healthy donors with autologous serum, interferon-gamma (IFN-gamma) and granulocyte-macrophage colony-stimulating factor (GM-CSF), de novo synthesis of MHC class II, CD80 and CD86 could be induced.
450 11122456 MHC class II-positive PMN acquired the capacity to present staphylococcus enterotoxin to peripheral T cells, apparent as induction of interleukin-2 (IL-2) synthesis and proliferation of the T cells.
451 11131151 To this end, allogeneic T cells were stimulated with CD80-expressing HeLa cells or CaSki cells in the absence or presence of IL-2, IL-7, IL-12, or combinations thereof.
452 11131151 IL-2 or IL-7 had stronger effects in expanding the T cells than IL-12.
453 11131151 Combination of IL-2 and IL-7 resulted in best T cell expansion.
454 11131151 Stimulation with CD80 alone or in combination with IL-7 induced mainly cytotoxic T lymphocytes.
455 11131151 IL-2, IL-12 or the combination of IL-2 and IL-7 induced natural killer cell-like activity and specific cytolytic activity against parental and CD80-positive tumor cells.
456 11131151 Our data suggest that the expression of both CD80 and IL-2 plus IL-7 can enhance the efficacy of tumor vaccines.
457 11131151 To this end, allogeneic T cells were stimulated with CD80-expressing HeLa cells or CaSki cells in the absence or presence of IL-2, IL-7, IL-12, or combinations thereof.
458 11131151 IL-2 or IL-7 had stronger effects in expanding the T cells than IL-12.
459 11131151 Combination of IL-2 and IL-7 resulted in best T cell expansion.
460 11131151 Stimulation with CD80 alone or in combination with IL-7 induced mainly cytotoxic T lymphocytes.
461 11131151 IL-2, IL-12 or the combination of IL-2 and IL-7 induced natural killer cell-like activity and specific cytolytic activity against parental and CD80-positive tumor cells.
462 11131151 Our data suggest that the expression of both CD80 and IL-2 plus IL-7 can enhance the efficacy of tumor vaccines.
463 11131151 To this end, allogeneic T cells were stimulated with CD80-expressing HeLa cells or CaSki cells in the absence or presence of IL-2, IL-7, IL-12, or combinations thereof.
464 11131151 IL-2 or IL-7 had stronger effects in expanding the T cells than IL-12.
465 11131151 Combination of IL-2 and IL-7 resulted in best T cell expansion.
466 11131151 Stimulation with CD80 alone or in combination with IL-7 induced mainly cytotoxic T lymphocytes.
467 11131151 IL-2, IL-12 or the combination of IL-2 and IL-7 induced natural killer cell-like activity and specific cytolytic activity against parental and CD80-positive tumor cells.
468 11131151 Our data suggest that the expression of both CD80 and IL-2 plus IL-7 can enhance the efficacy of tumor vaccines.
469 11131151 To this end, allogeneic T cells were stimulated with CD80-expressing HeLa cells or CaSki cells in the absence or presence of IL-2, IL-7, IL-12, or combinations thereof.
470 11131151 IL-2 or IL-7 had stronger effects in expanding the T cells than IL-12.
471 11131151 Combination of IL-2 and IL-7 resulted in best T cell expansion.
472 11131151 Stimulation with CD80 alone or in combination with IL-7 induced mainly cytotoxic T lymphocytes.
473 11131151 IL-2, IL-12 or the combination of IL-2 and IL-7 induced natural killer cell-like activity and specific cytolytic activity against parental and CD80-positive tumor cells.
474 11131151 Our data suggest that the expression of both CD80 and IL-2 plus IL-7 can enhance the efficacy of tumor vaccines.
475 11228533 The expression of CD70 and CD80 by gene-modified tumor cells induces an antitumor response depending on the MHC status.
476 11228533 The expression of costimulatory molecules such as CD70 or CD80 by gene-modified tumor cells has been shown to enhance the antitumor immune response based mainly on T lymphocytes.
477 11228533 To investigate if coexpression of CD70 and CD80 costimulatory molecules induces comparable antitumor responses in low and high MHC-expressing tumor cells, we used two low immunogenic murine tumor models, the B16.F10 melanoma and the TS/A mammary adenocarcinoma cell lines expressing, respectively, low and high levels of MHC class I molecules.
478 11228533 Transfection of both CD70 and CD80 genes resulted in an increased capacity of gene-modified tumor cells to costimulate in vitro the proliferation and cytokine production of optimally activated lymphoid cells.
479 11228533 Coexpression of CD70 and CD80 by the two tumor cell lines, TS/A and B16.F10, resulted in both cases in partial regression of subcutaneous tumors.
480 11228533 Immunochemical analysis and studies in nude mice showed that, even in the B16.F10 model, T cells had a significant role in the antitumor response induced by combining CD70 and CD80.
481 11228533 However, rejection of the CD70/CD80-transfected tumor cells appeared more effective in the MHC class I high TS/A model, leading to a protection against parental tumor cells.
482 11228533 In the two models tested, the injections of irradiated IL-12 and CD70/CD80 gene-modified cells generated an antitumor response to established tumors leading to the slowing down of the tumor growth rate.
483 11228533 The expression of CD70 and CD80 by gene-modified tumor cells induces an antitumor response depending on the MHC status.
484 11228533 The expression of costimulatory molecules such as CD70 or CD80 by gene-modified tumor cells has been shown to enhance the antitumor immune response based mainly on T lymphocytes.
485 11228533 To investigate if coexpression of CD70 and CD80 costimulatory molecules induces comparable antitumor responses in low and high MHC-expressing tumor cells, we used two low immunogenic murine tumor models, the B16.F10 melanoma and the TS/A mammary adenocarcinoma cell lines expressing, respectively, low and high levels of MHC class I molecules.
486 11228533 Transfection of both CD70 and CD80 genes resulted in an increased capacity of gene-modified tumor cells to costimulate in vitro the proliferation and cytokine production of optimally activated lymphoid cells.
487 11228533 Coexpression of CD70 and CD80 by the two tumor cell lines, TS/A and B16.F10, resulted in both cases in partial regression of subcutaneous tumors.
488 11228533 Immunochemical analysis and studies in nude mice showed that, even in the B16.F10 model, T cells had a significant role in the antitumor response induced by combining CD70 and CD80.
489 11228533 However, rejection of the CD70/CD80-transfected tumor cells appeared more effective in the MHC class I high TS/A model, leading to a protection against parental tumor cells.
490 11228533 In the two models tested, the injections of irradiated IL-12 and CD70/CD80 gene-modified cells generated an antitumor response to established tumors leading to the slowing down of the tumor growth rate.
491 11228533 The expression of CD70 and CD80 by gene-modified tumor cells induces an antitumor response depending on the MHC status.
492 11228533 The expression of costimulatory molecules such as CD70 or CD80 by gene-modified tumor cells has been shown to enhance the antitumor immune response based mainly on T lymphocytes.
493 11228533 To investigate if coexpression of CD70 and CD80 costimulatory molecules induces comparable antitumor responses in low and high MHC-expressing tumor cells, we used two low immunogenic murine tumor models, the B16.F10 melanoma and the TS/A mammary adenocarcinoma cell lines expressing, respectively, low and high levels of MHC class I molecules.
494 11228533 Transfection of both CD70 and CD80 genes resulted in an increased capacity of gene-modified tumor cells to costimulate in vitro the proliferation and cytokine production of optimally activated lymphoid cells.
495 11228533 Coexpression of CD70 and CD80 by the two tumor cell lines, TS/A and B16.F10, resulted in both cases in partial regression of subcutaneous tumors.
496 11228533 Immunochemical analysis and studies in nude mice showed that, even in the B16.F10 model, T cells had a significant role in the antitumor response induced by combining CD70 and CD80.
497 11228533 However, rejection of the CD70/CD80-transfected tumor cells appeared more effective in the MHC class I high TS/A model, leading to a protection against parental tumor cells.
498 11228533 In the two models tested, the injections of irradiated IL-12 and CD70/CD80 gene-modified cells generated an antitumor response to established tumors leading to the slowing down of the tumor growth rate.
499 11228533 The expression of CD70 and CD80 by gene-modified tumor cells induces an antitumor response depending on the MHC status.
500 11228533 The expression of costimulatory molecules such as CD70 or CD80 by gene-modified tumor cells has been shown to enhance the antitumor immune response based mainly on T lymphocytes.
501 11228533 To investigate if coexpression of CD70 and CD80 costimulatory molecules induces comparable antitumor responses in low and high MHC-expressing tumor cells, we used two low immunogenic murine tumor models, the B16.F10 melanoma and the TS/A mammary adenocarcinoma cell lines expressing, respectively, low and high levels of MHC class I molecules.
502 11228533 Transfection of both CD70 and CD80 genes resulted in an increased capacity of gene-modified tumor cells to costimulate in vitro the proliferation and cytokine production of optimally activated lymphoid cells.
503 11228533 Coexpression of CD70 and CD80 by the two tumor cell lines, TS/A and B16.F10, resulted in both cases in partial regression of subcutaneous tumors.
504 11228533 Immunochemical analysis and studies in nude mice showed that, even in the B16.F10 model, T cells had a significant role in the antitumor response induced by combining CD70 and CD80.
505 11228533 However, rejection of the CD70/CD80-transfected tumor cells appeared more effective in the MHC class I high TS/A model, leading to a protection against parental tumor cells.
506 11228533 In the two models tested, the injections of irradiated IL-12 and CD70/CD80 gene-modified cells generated an antitumor response to established tumors leading to the slowing down of the tumor growth rate.
507 11228533 The expression of CD70 and CD80 by gene-modified tumor cells induces an antitumor response depending on the MHC status.
508 11228533 The expression of costimulatory molecules such as CD70 or CD80 by gene-modified tumor cells has been shown to enhance the antitumor immune response based mainly on T lymphocytes.
509 11228533 To investigate if coexpression of CD70 and CD80 costimulatory molecules induces comparable antitumor responses in low and high MHC-expressing tumor cells, we used two low immunogenic murine tumor models, the B16.F10 melanoma and the TS/A mammary adenocarcinoma cell lines expressing, respectively, low and high levels of MHC class I molecules.
510 11228533 Transfection of both CD70 and CD80 genes resulted in an increased capacity of gene-modified tumor cells to costimulate in vitro the proliferation and cytokine production of optimally activated lymphoid cells.
511 11228533 Coexpression of CD70 and CD80 by the two tumor cell lines, TS/A and B16.F10, resulted in both cases in partial regression of subcutaneous tumors.
512 11228533 Immunochemical analysis and studies in nude mice showed that, even in the B16.F10 model, T cells had a significant role in the antitumor response induced by combining CD70 and CD80.
513 11228533 However, rejection of the CD70/CD80-transfected tumor cells appeared more effective in the MHC class I high TS/A model, leading to a protection against parental tumor cells.
514 11228533 In the two models tested, the injections of irradiated IL-12 and CD70/CD80 gene-modified cells generated an antitumor response to established tumors leading to the slowing down of the tumor growth rate.
515 11228533 The expression of CD70 and CD80 by gene-modified tumor cells induces an antitumor response depending on the MHC status.
516 11228533 The expression of costimulatory molecules such as CD70 or CD80 by gene-modified tumor cells has been shown to enhance the antitumor immune response based mainly on T lymphocytes.
517 11228533 To investigate if coexpression of CD70 and CD80 costimulatory molecules induces comparable antitumor responses in low and high MHC-expressing tumor cells, we used two low immunogenic murine tumor models, the B16.F10 melanoma and the TS/A mammary adenocarcinoma cell lines expressing, respectively, low and high levels of MHC class I molecules.
518 11228533 Transfection of both CD70 and CD80 genes resulted in an increased capacity of gene-modified tumor cells to costimulate in vitro the proliferation and cytokine production of optimally activated lymphoid cells.
519 11228533 Coexpression of CD70 and CD80 by the two tumor cell lines, TS/A and B16.F10, resulted in both cases in partial regression of subcutaneous tumors.
520 11228533 Immunochemical analysis and studies in nude mice showed that, even in the B16.F10 model, T cells had a significant role in the antitumor response induced by combining CD70 and CD80.
521 11228533 However, rejection of the CD70/CD80-transfected tumor cells appeared more effective in the MHC class I high TS/A model, leading to a protection against parental tumor cells.
522 11228533 In the two models tested, the injections of irradiated IL-12 and CD70/CD80 gene-modified cells generated an antitumor response to established tumors leading to the slowing down of the tumor growth rate.
523 11228533 The expression of CD70 and CD80 by gene-modified tumor cells induces an antitumor response depending on the MHC status.
524 11228533 The expression of costimulatory molecules such as CD70 or CD80 by gene-modified tumor cells has been shown to enhance the antitumor immune response based mainly on T lymphocytes.
525 11228533 To investigate if coexpression of CD70 and CD80 costimulatory molecules induces comparable antitumor responses in low and high MHC-expressing tumor cells, we used two low immunogenic murine tumor models, the B16.F10 melanoma and the TS/A mammary adenocarcinoma cell lines expressing, respectively, low and high levels of MHC class I molecules.
526 11228533 Transfection of both CD70 and CD80 genes resulted in an increased capacity of gene-modified tumor cells to costimulate in vitro the proliferation and cytokine production of optimally activated lymphoid cells.
527 11228533 Coexpression of CD70 and CD80 by the two tumor cell lines, TS/A and B16.F10, resulted in both cases in partial regression of subcutaneous tumors.
528 11228533 Immunochemical analysis and studies in nude mice showed that, even in the B16.F10 model, T cells had a significant role in the antitumor response induced by combining CD70 and CD80.
529 11228533 However, rejection of the CD70/CD80-transfected tumor cells appeared more effective in the MHC class I high TS/A model, leading to a protection against parental tumor cells.
530 11228533 In the two models tested, the injections of irradiated IL-12 and CD70/CD80 gene-modified cells generated an antitumor response to established tumors leading to the slowing down of the tumor growth rate.
531 11228533 The expression of CD70 and CD80 by gene-modified tumor cells induces an antitumor response depending on the MHC status.
532 11228533 The expression of costimulatory molecules such as CD70 or CD80 by gene-modified tumor cells has been shown to enhance the antitumor immune response based mainly on T lymphocytes.
533 11228533 To investigate if coexpression of CD70 and CD80 costimulatory molecules induces comparable antitumor responses in low and high MHC-expressing tumor cells, we used two low immunogenic murine tumor models, the B16.F10 melanoma and the TS/A mammary adenocarcinoma cell lines expressing, respectively, low and high levels of MHC class I molecules.
534 11228533 Transfection of both CD70 and CD80 genes resulted in an increased capacity of gene-modified tumor cells to costimulate in vitro the proliferation and cytokine production of optimally activated lymphoid cells.
535 11228533 Coexpression of CD70 and CD80 by the two tumor cell lines, TS/A and B16.F10, resulted in both cases in partial regression of subcutaneous tumors.
536 11228533 Immunochemical analysis and studies in nude mice showed that, even in the B16.F10 model, T cells had a significant role in the antitumor response induced by combining CD70 and CD80.
537 11228533 However, rejection of the CD70/CD80-transfected tumor cells appeared more effective in the MHC class I high TS/A model, leading to a protection against parental tumor cells.
538 11228533 In the two models tested, the injections of irradiated IL-12 and CD70/CD80 gene-modified cells generated an antitumor response to established tumors leading to the slowing down of the tumor growth rate.
539 11228537 Antitumor effects of the combination therapy with TNF-alpha gene-modified tumor cells and interleukin 12 in a melanoma model in mice.
540 11228537 FACS analysis of parental B78 melanoma cells and its B78/TNF genetically modified variant showed that a proportion of cells of both cell lines expressed 87-1 (CD80) costimulatory molecule and that the expression of this molecule was increased during incubation with IFN-gamma.
541 11228537 Moreover, IFN-gamma markedly augmented expression of major histocompatibility class (MHC) class I and II molecules on B78/TNF cells that were primarily MHC class I and II negative with no substantial effect on MHC-negative parental B78 melanoma.
542 11228537 IFN-gamma also synergized in cytostatic/cytotoxic effects with TNF-alpha against B78 melanoma in vitro.
543 11228537 The results suggest that, when used therapeutically, IL-12 and a vaccine containing TNF-alpha gene-transduced tumor cells may reciprocally augment their overall antitumor effectiveness by facilitating development of systemic antitumor immunity and by stimulating local effector mechanisms of the tumor destruction.
544 11238679 Following enrichment, DC developed an activated phenotype with up-regulation of CD80, CD86, and CD83 expression.
545 11238679 During culture, the DC maintained their levels of various adhesion molecules, including CD44, LFA-1, cutaneous lymphocyte-associated Ag, and CD49d, up-regulated CCR7, but lost CD62 ligand and CCR5.
546 11238679 Induction of IFN-gamma production, however, was seen only with i.d. and i.l. routes of administration, and no IL-4 responses were seen regardless of route, consistent with the induction of Th1-type immunity.
547 11277614 Resiquimod, like CD40, stimulates antibody secretion, cytokine production, protection from apoptosis, and CD80 upregulation.
548 11342606 Dendritic cells (DCs) are the most potent inducers of immune responses and here we show for the first time evidence for binding of chimeric HPV-16 VLPs to human peripheral blood-derived DCS: Incubation of immature human DCs with VLPs for 48 h induced a significant up-regulation of the CD80 and CD83 molecules as well as secretion of IL-12.
549 11390619 Differential incorporation of CD45, CD80 (B7-1), CD86 (B7-2), and major histocompatibility complex class I and II molecules into human immunodeficiency virus type 1 virions and microvesicles: implications for viral pathogenesis and immune regulation.
550 11390619 Because T-cell receptor engagement of major histocompatibility complex (MHC) molecules in the absence of costimulation mediated via CD28 binding to CD80 (B7-1) or CD86 (B7-2) can lead to anergy or apoptosis, we determined whether HIV type 1 (HIV-1) virions incorporated MHC class I (MHC-I), MHC-II, CD80, or CD86.
551 11390619 HIV infection increased MHC-II expression on T- and B-cell lines, macrophages, and peripheral blood mononclear cells (PBMC) but did not significantly alter the expression of CD80 or CD86.
552 11390619 HIV virions derived from all MHC-II-positive cell types incorporated high levels of MHC-II, and both virions and microvesicles preferentially incorporated CD86 compared to CD80.
553 11390619 Differential incorporation of CD45, CD80 (B7-1), CD86 (B7-2), and major histocompatibility complex class I and II molecules into human immunodeficiency virus type 1 virions and microvesicles: implications for viral pathogenesis and immune regulation.
554 11390619 Because T-cell receptor engagement of major histocompatibility complex (MHC) molecules in the absence of costimulation mediated via CD28 binding to CD80 (B7-1) or CD86 (B7-2) can lead to anergy or apoptosis, we determined whether HIV type 1 (HIV-1) virions incorporated MHC class I (MHC-I), MHC-II, CD80, or CD86.
555 11390619 HIV infection increased MHC-II expression on T- and B-cell lines, macrophages, and peripheral blood mononclear cells (PBMC) but did not significantly alter the expression of CD80 or CD86.
556 11390619 HIV virions derived from all MHC-II-positive cell types incorporated high levels of MHC-II, and both virions and microvesicles preferentially incorporated CD86 compared to CD80.
557 11390619 Differential incorporation of CD45, CD80 (B7-1), CD86 (B7-2), and major histocompatibility complex class I and II molecules into human immunodeficiency virus type 1 virions and microvesicles: implications for viral pathogenesis and immune regulation.
558 11390619 Because T-cell receptor engagement of major histocompatibility complex (MHC) molecules in the absence of costimulation mediated via CD28 binding to CD80 (B7-1) or CD86 (B7-2) can lead to anergy or apoptosis, we determined whether HIV type 1 (HIV-1) virions incorporated MHC class I (MHC-I), MHC-II, CD80, or CD86.
559 11390619 HIV infection increased MHC-II expression on T- and B-cell lines, macrophages, and peripheral blood mononclear cells (PBMC) but did not significantly alter the expression of CD80 or CD86.
560 11390619 HIV virions derived from all MHC-II-positive cell types incorporated high levels of MHC-II, and both virions and microvesicles preferentially incorporated CD86 compared to CD80.
561 11390619 Differential incorporation of CD45, CD80 (B7-1), CD86 (B7-2), and major histocompatibility complex class I and II molecules into human immunodeficiency virus type 1 virions and microvesicles: implications for viral pathogenesis and immune regulation.
562 11390619 Because T-cell receptor engagement of major histocompatibility complex (MHC) molecules in the absence of costimulation mediated via CD28 binding to CD80 (B7-1) or CD86 (B7-2) can lead to anergy or apoptosis, we determined whether HIV type 1 (HIV-1) virions incorporated MHC class I (MHC-I), MHC-II, CD80, or CD86.
563 11390619 HIV infection increased MHC-II expression on T- and B-cell lines, macrophages, and peripheral blood mononclear cells (PBMC) but did not significantly alter the expression of CD80 or CD86.
564 11390619 HIV virions derived from all MHC-II-positive cell types incorporated high levels of MHC-II, and both virions and microvesicles preferentially incorporated CD86 compared to CD80.
565 11403919 We studied strategies for the reliable generation of such a tumor vaccine by functional maturation of DCs via interaction of CD40 with its ligand (CD40L, CD154).
566 11403919 Exposure of immature DCs to CD40L transgenic cells, soluble recombinant human CD40L molecules or lipopolysaccharide induced expression of the co-stimulatory molecules, CD80 and CD86, and supported an allogeneic mixed leukocyte reaction.
567 11403919 In contrast, the release of IL-12, an important mediator of anti-tumor immunity, and antigen-specific expansion and IFNgamma secretion of lymphocytes, was strongly triggered only by DCs exposed to CD40L transgenic cells.
568 11418309 In vivo transfection and/or cross-priming of dendritic cells following DNA and adenoviral immunizations for immunotherapy of cancer--changes in peripheral mononuclear subsets and intracellular IL-4 and IFN-gamma lymphokine profile.
569 11418309 One approach is to genetically manipulate tumor cells to either secrete lymphokines (GM-CSF, IL-12, IL-15) or express membrane bound molecules (CD80, CD86).
570 11418309 We have successfully completed a phase I and phase II clinical trials on immunotherapy of prostate cancer using naked DNA and adenoviral immunizations against the prostate-specific membrane antigen (PSMA) and phase I clinical trial on colorectal cancer using naked DNA immunization against the carcinoembryonic antigen (CEA).
571 11446744 The costimulatory pathway that includes CD80, CD86, CD28, and CTLA-4 plays a key role in regulating T cell activation and tolerance and is a promising therapeutic target.
572 11446744 We found that DeltaCD86 was able to inhibit the engagement of FcCTLA-4 but not of FcCD28 to CD80 and CD86 expressed on COS cells.
573 11446744 Coadministration of plasmid pDelta86 encoding for the extracellular domains of CD86 along with a plasmid encoding for the glycoprotein D (pgD) of herpes simplex virus-2 (a membrane-bound protein) by the im route in mice resulted in a strong inhibition of the cell-mediated immune response in the spleen and in draining lymph nodes.
574 11446744 The costimulatory pathway that includes CD80, CD86, CD28, and CTLA-4 plays a key role in regulating T cell activation and tolerance and is a promising therapeutic target.
575 11446744 We found that DeltaCD86 was able to inhibit the engagement of FcCTLA-4 but not of FcCD28 to CD80 and CD86 expressed on COS cells.
576 11446744 Coadministration of plasmid pDelta86 encoding for the extracellular domains of CD86 along with a plasmid encoding for the glycoprotein D (pgD) of herpes simplex virus-2 (a membrane-bound protein) by the im route in mice resulted in a strong inhibition of the cell-mediated immune response in the spleen and in draining lymph nodes.
577 11500820 In this report OMPC is shown to enhance CD40 ligand-mediated, T cell-dependent antibody production in mice.
578 11500820 This paralleled the induction by OMPC of CD86, CD80 and CD40 costimulatory molecules on human neonatal and murine B cells and of Th1 cytokines.
579 11529939 We found that Murabutide triggers immunophenotypic changes as upon treatment, iDCs up-regulate the surface expression of the major histocompatibility complex type II molecule human leucocyte antigen-DR, the co-stimulatory molecules CD80, CD86 and CD40 and the differentiation marker CD83, and down-regulate the expression of the mannose receptor.
580 11529939 Furthermore, in the presence of Murabutide, DCs transiently increased the release of macrophage inhibitory protein-1 beta, tumour necrosis factor-alpha and interleukin-10, whereas the enhanced production of macrophage-colony stimulating factor was sustained over the 3-day period analysed.
581 11591784 A dual-function DNA vaccine encoding carcinoembryonic antigen and CD40 ligand trimer induces T cell-mediated protective immunity against colon cancer in carcinoembryonic antigen-transgenic mice.
582 11591784 A carcinoembryonic Ag (CEA)-based DNA vaccine encoding both CEA and CD40 ligand trimer achieved effective tumor-protective immunity against murine colon carcinoma in CEA-transgenic mice by activating both naive T cells and dendritic cells.
583 11591784 Peripheral T cell tolerance to CEA was broken in a prophylactic model by this novel, dual-function DNA vaccine, whose efficacy was further enhanced by boosts with a recombinant Ab-IL-2 fusion protein (huKS1/4-IL-2).
584 11591784 Second, specific activation of dendritic cells was indicated by their marked up-regulation in expression of costimulatory molecules B7.1 (CD80), B7.2 (CD86), and ICAM-1.
585 11591784 Third, a decisive increase over control values was observed in both MHC class I Ag-restricted cytotoxicity of CTLs from successfully vaccinated mice and secretion of proinflammatory cytokines IFN-gamma and IL-12.
586 11591784 Fourth, activation of CTLs was augmented, as indicated by up-regulation of activity markers LFA-1, CD25, CD28, and CD69.
587 11591784 Taken together, these results suggest that a dual-function DNA vaccine encoding CEA and CD40 ligand trimer combined with tumor-targeted IL-2 may be a promising strategy for the rational development of DNA-based cancer vaccines for future clinical applications.
588 11668436 Cultured DCs can be recognized by a typical veiled morphologic appearance and expression of surface markers that include major histocompatibility complex class II, CD86/B7.2, CD80/B7.1, CD83, and CD1a.
589 11672905 This vaccine, delivered by oral gavage with an attenuated strain of Salmonella typhimurium (SL7207), and boosted with an antibody-IL2 fusion protein, induced tumor-protective immunity mediated by MHC class I antigen-restricted CD8(+) T cells, resulting in eradication of subcutaneous tumors in 100% of mice and prevention of experimental pulmonary metastases in 75% of experimental animals.
590 11672905 Both CTL and antigen-presenting dendritic cells were activated as indicated by a decisive increase in their respective activation markers CD2, CD25, CD28 as well as CD48 and CD80.
591 11691812 Flow cytometric analysis indicated enhanced expression of MHC class I and II molecules as well as CD80, CD86, CD40, and CD54, and reverse transcription-PCR analysis revealed increased levels of interleukin 12 p40 mRNA.
592 11703320 We have analysed the functional capability of DC generated in vitro from blood CD14(+) cells of chronic lymphocytic leukaemia (CLL) patients and healthy donors by culturing for 10 d with granulocyte-macrophage colony-stimulating factor (GM-CSF), interleukin 4 (IL-4) and tumour necrosis factor-alpha (TNF-alpha).
593 11703320 Most of the DC generated from both patients and controls exhibited a mature phenotype indicated by CD83 and major histocompatibility complex (MHC) class II expression, as well as by a characteristic morphology.
594 11703320 CLL DC had a similar expression of accessory molecules (CD54, CD80 and CD86) as control DC.
595 11703320 The mean fluorescence intensity of CD80 and MHC class I molecules was significantly higher on CLL DC than on control DC (P < 0.05).
596 11703320 The expression of IL-4 and TNF-alpha was similar to that of control DC.
597 11703320 We have analysed the functional capability of DC generated in vitro from blood CD14(+) cells of chronic lymphocytic leukaemia (CLL) patients and healthy donors by culturing for 10 d with granulocyte-macrophage colony-stimulating factor (GM-CSF), interleukin 4 (IL-4) and tumour necrosis factor-alpha (TNF-alpha).
598 11703320 Most of the DC generated from both patients and controls exhibited a mature phenotype indicated by CD83 and major histocompatibility complex (MHC) class II expression, as well as by a characteristic morphology.
599 11703320 CLL DC had a similar expression of accessory molecules (CD54, CD80 and CD86) as control DC.
600 11703320 The mean fluorescence intensity of CD80 and MHC class I molecules was significantly higher on CLL DC than on control DC (P < 0.05).
601 11703320 The expression of IL-4 and TNF-alpha was similar to that of control DC.
602 11730483 The cells exhibited all the phenotypic characteristics (CD11c+, HLA-DR+, CD80+, CD83+, CD86+) of DCs, as tested by flow cytometry.
603 11731436 The vaccine used immature DC (CD14-, CD80+, CD86+, CD83-, and HLA-DR+) generated from peripheral blood monocytes in the presence of granulocyte/monocyte colony-stimulating factor and interleukin-4.
604 11738738 Enhanced activation of rhesus T cells by vectors encoding a triad of costimulatory molecules (B7-1, ICAM-1, LFA-3).
605 11738738 Several molecules normally found on the surface of professional human APCs are capable of providing the second signals critical for T cell activation: B7-1 (CD80), ICAM-1 (CD54), and LFA-3 (CD58).
606 11738738 We have recently designed and characterized both recombinant vaccinia and recombinant avipox vectors containing the transgenes for a triad of human T cell costimulatory molecules (B7-1, ICAM-1, LFA-3; designated TRICOM).
607 11751948 Requirement for NK cells in CD40 ligand-mediated rejection of Philadelphia chromosome-positive acute lymphoblastic leukemia cells.
608 11751948 We are studying the potential to elicit autologous antileukemic immune responses by introducing genes encoding immunomodulators (CD40 ligand (CD40L), CD80, and GM-CSF) into leukemia cells.
609 11751948 BM185 cells expressing CD40L or CD80 alone, when injected into BALB/c mice, were rejected in approximately 25% of mice, whereas cohorts receiving BM185 cells expressing two or more immunomodulator genes rejected challenge 50-76% of the time.
610 11751948 Addition of murine rIL-12 treatments in conjunction with BM185/CD80/CD40L/GM-CSF vaccination allowed rejection of preestablished leukemia.
611 11751948 BM185 cell lines expressing CD40L were rejected in BALB/c nu/nu (nude) mice, in contrast to cell lines expressing CD80 and/or GM-CSF.
612 11751948 Requirement for NK cells in CD40 ligand-mediated rejection of Philadelphia chromosome-positive acute lymphoblastic leukemia cells.
613 11751948 We are studying the potential to elicit autologous antileukemic immune responses by introducing genes encoding immunomodulators (CD40 ligand (CD40L), CD80, and GM-CSF) into leukemia cells.
614 11751948 BM185 cells expressing CD40L or CD80 alone, when injected into BALB/c mice, were rejected in approximately 25% of mice, whereas cohorts receiving BM185 cells expressing two or more immunomodulator genes rejected challenge 50-76% of the time.
615 11751948 Addition of murine rIL-12 treatments in conjunction with BM185/CD80/CD40L/GM-CSF vaccination allowed rejection of preestablished leukemia.
616 11751948 BM185 cell lines expressing CD40L were rejected in BALB/c nu/nu (nude) mice, in contrast to cell lines expressing CD80 and/or GM-CSF.
617 11751948 Requirement for NK cells in CD40 ligand-mediated rejection of Philadelphia chromosome-positive acute lymphoblastic leukemia cells.
618 11751948 We are studying the potential to elicit autologous antileukemic immune responses by introducing genes encoding immunomodulators (CD40 ligand (CD40L), CD80, and GM-CSF) into leukemia cells.
619 11751948 BM185 cells expressing CD40L or CD80 alone, when injected into BALB/c mice, were rejected in approximately 25% of mice, whereas cohorts receiving BM185 cells expressing two or more immunomodulator genes rejected challenge 50-76% of the time.
620 11751948 Addition of murine rIL-12 treatments in conjunction with BM185/CD80/CD40L/GM-CSF vaccination allowed rejection of preestablished leukemia.
621 11751948 BM185 cell lines expressing CD40L were rejected in BALB/c nu/nu (nude) mice, in contrast to cell lines expressing CD80 and/or GM-CSF.
622 11751948 Requirement for NK cells in CD40 ligand-mediated rejection of Philadelphia chromosome-positive acute lymphoblastic leukemia cells.
623 11751948 We are studying the potential to elicit autologous antileukemic immune responses by introducing genes encoding immunomodulators (CD40 ligand (CD40L), CD80, and GM-CSF) into leukemia cells.
624 11751948 BM185 cells expressing CD40L or CD80 alone, when injected into BALB/c mice, were rejected in approximately 25% of mice, whereas cohorts receiving BM185 cells expressing two or more immunomodulator genes rejected challenge 50-76% of the time.
625 11751948 Addition of murine rIL-12 treatments in conjunction with BM185/CD80/CD40L/GM-CSF vaccination allowed rejection of preestablished leukemia.
626 11751948 BM185 cell lines expressing CD40L were rejected in BALB/c nu/nu (nude) mice, in contrast to cell lines expressing CD80 and/or GM-CSF.
627 11754359 Expression of single-chain HLA was complemented step-by-step with costimulatory molecules, including CD54 and CD80, by co-infection with the relevant viruses.
628 11754359 We found that the HLA+peptide complex alone displayed on the surface of insect cells was sufficient to elicit IFN-gamma secretion from these freshly isolated CD8(+) T cells in ELISpot assays.
629 11754359 The amount of IFN-gamma produced by the individual reactive T cells was evaluated as spot size, and was also influenced by the costimulatory molecules: CD54 increased also the response magnitude of cultured CTL lines, while CD80 enhanced cytokine release from freshly isolated CD8(+) T cells.
630 11754359 Expression of single-chain HLA was complemented step-by-step with costimulatory molecules, including CD54 and CD80, by co-infection with the relevant viruses.
631 11754359 We found that the HLA+peptide complex alone displayed on the surface of insect cells was sufficient to elicit IFN-gamma secretion from these freshly isolated CD8(+) T cells in ELISpot assays.
632 11754359 The amount of IFN-gamma produced by the individual reactive T cells was evaluated as spot size, and was also influenced by the costimulatory molecules: CD54 increased also the response magnitude of cultured CTL lines, while CD80 enhanced cytokine release from freshly isolated CD8(+) T cells.
633 11759072 Dendritic cells were derived from bone marrow and cultured in granulocyte-macrophage colony-stimulating factor/interleukin 4 before pulsation with tumor lysate.
634 11759072 Multiple subcutaneous administrations of tumor lysate-pulsed dendritic cells (TP-DCs) resulted in an approximately eightfold hypertrophy of the vaccine draining nodes, with an increased influx of dendritic (CD11c+/CD80+) cells and B (B220+) cells.
635 11759072 The vaccine-primed lymph node (VPLN) cells were secondarily activated with anti-CD3/interleukin 2 and exhibited specific interferon-gamma release to tumor antigen.
636 11777991 Maturation parameters such as production of IL-12 and increases in cell surface expression of HLA-DR, CD80, CD86, CD40, and CD83 were observed following DC treatment with MPL.
637 11777991 This is likely to be related to differences in the kinetics of extracellular signal-related kinase 1/2 and p-38 phosphorylation induced by both molecules.
638 11777991 The observed effect was related to the fact that MPL also acts directly on T cells, likely through their Toll-like receptors, by increasing their intracellular calcium and up-regulating their CD40 ligand expression.
639 11781244 Infection induced DC morphology and altered the expression of surface markers, including loss of CD14, de novo induction of CD83 and CD25, and strongly augmented expression of CD86, CD80, CD40, and HLA-DR and HLA class I molecules.
640 11792391 Characteristic immunophenotypic and functional DC maturation induced by standard monocyte conditioned medium (MCM) was compared to the activation induced by a panel of stimuli including soluble CD40L, LPS, Poly I:C, PGE(2)/TNFalpha, and a cocktail mixture of PGE(2)/TNFalpha/IL-1beta/IL-6.
641 11792391 Immunophenotypic analysis confirmed that all stimuli induced stable up-regulation of CD25, CD40, CD80, CD83, CD86, HLA-DR, DC-LAMP (CD208), and DEC-205 (CD205).
642 11797392 Formation of tri-molecular complex among T cell antigen receptor(TCR), major histocompatibility complex(MHC) molecule, and antigen peptide produces signal 1 via TCR.
643 11797392 However, signal 2 is elicited by interaction between CD28 and its ligands(CD80 and CD86) and is antigen-independent.
644 11797392 Interestingly, cell surface expression of CD80 and CD86 on antigen-presenting cell(APC) is regulated by stimulus via CD40.
645 11797392 Formation of tri-molecular complex among T cell antigen receptor(TCR), major histocompatibility complex(MHC) molecule, and antigen peptide produces signal 1 via TCR.
646 11797392 However, signal 2 is elicited by interaction between CD28 and its ligands(CD80 and CD86) and is antigen-independent.
647 11797392 Interestingly, cell surface expression of CD80 and CD86 on antigen-presenting cell(APC) is regulated by stimulus via CD40.
648 11857039 Adenovirus-mediated CD40 ligand gene-engineered dendritic cells elicit enhanced CD8(+) cytotoxic T-cell activation and antitumor immunity.
649 11857039 CD40L, the ligand for CD40 on dendritic cells (DCs), plays an important role in their activation and is essential for induction of antigen-specific T-cell responses.
650 11857039 Our data show that transfection of DCs with recombinant adenovirus AdV-CD40L resulted in activation of DCs with up-regulated expression of proinflammatory cytokines (IL-1beta and IL-12), chemokines (RANTES, IP-10, and MIP-1alpha), and immunologically important cell surface molecules (CD54, CD80, and CD86).
651 11857039 Our data also demonstrate that DCs transfected with AdV-CD40L (DC(CD40L)) are able to stimulate enhanced allogeneic T-cell proliferation and Mut1-specific CD8(+) cytotoxic T-cell responses in vitro.
652 11857039 Thus, DCs engineered to express CD40L by adenovirus-mediated CD40 ligand gene transfer may offer a new strategy in production of DC cancer vaccines.
653 11860540 Evidence suggests that CD80 (B7-1) and Interferon-gamma (IFN-gamma) play important roles in antitumor immunity induced by T lymphocyte.
654 11861381 We distinguished a population of dendrite-like cells among the cells derived from the silica-treated peritoneal cavity both by their phenotype (MHC II(+)/CD80(+)/CD86(+)) and by their ability to induce the proliferation of allogeneic T cells in a mixed leukocyte reaction.
655 11902830 Mature DCs expressed significantly heightened levels of their antigen-presenting machinery (e.g., CD54, CD80, CD86) and numerous cytokines and chemokines/chemokine receptors (i.e., Flt-3L, G-CSF, IL-1alpha and -1beta, IL-6, IL-12, CCL-2, -3, -4, -5, -17, and -22, MIP-2, and CCR7) and were significantly better at inducing effector T cell responses in vitro.
656 11902830 Nevertheless, intermediate-maturity DCs expressed substantial levels of Flt-3L, IGF-1, IL-1alpha and -1beta, IL-6, CCL-2, -3, -4, -9/10, -17, and -22, MIP-2, osteopontin, CCR-1, -2, -5, and -7, and CXCR-4.
657 11956426 Phase I trial of a B7-1 (CD80) gene modified autologous tumor cell vaccine in combination with systemic interleukin-2 in patients with metastatic renal cell carcinoma.
658 12036933 CD40L enhances the antigen presentation function of CD40-expressing B cells.
659 12036933 We have used a murine B-cell lymphoma model (A20) to study the in vivo antitumor effect of the administration of tumor cells transduced with a recombinant adenovirus encoding CD40L (AdvCD40L).
660 12036933 After infection with AdvCD40L, A20 tumor cells up-regulate several T-cell costimulatory molecules (CD80, CD86, ICAM-1, and LFA-3) and Fas expression.
661 12036933 In vivo depletion studies demonstrate that both CD4(+) and CD8(+) T cells mediate the antitumor immunity provided by AdvCD40L-transduced tumor cells.
662 12054065 Second-generation whole cell vaccines include those incorporating genes such as GM-CSF or CD80 (B7-1) to improve immunogenicity, and the use of immunogenic cell membranes such as large multivalent immunogen (LMI).
663 12111122 We showed that bone marrow-derived DC pulsed with Id-CD40L upregulated the expression of CD40, CD80, CD86, and major histocompatibility complex (MHC) class II molecules with the increased production of interleukin-12 (IL-12).
664 12134231 Both native PT (nPT) and genetically detoxified PT (dPT) efficiently promoted expression on DCs of CD80, CD86, human leukocyte antigen-DR, and CD83 markers, alloreactive antigen presentation, and cytokine production, primarily interferon (IFN)-gamma.
665 12134231 Although they did not affect interleukin (IL)-10 production by lipopolysaccharide (LPS)-stimulated DCs, both nPT and dPT strongly synergized with LPS for IL-12 production.
666 12134231 PTs plus LPS-stimulated DCs secreted soluble factors fostering IFN-gamma but not IL-4 and IL-5 production by naive T cells.
667 12149420 Although BRSV did not appear to replicate in MoDC or to affect expression of major histocompatibility complex (MHC) class I, MHC class II, or CD80/86, a higher percentage of cells exposed to live virus appeared to undergo apoptosis/necrosis.
668 12149420 Exposure of MoDC to live BRSV induced more interleukin (IL)-10 mRNA and markedly less IL-12p40 and IL-15 mRNA than did heat-inactivated virus.
669 12149420 Stimulation of CD4(+) T cells induced similar levels of IL-2-and IL-4-like activity and interferon-gamma.
670 12149420 These observations suggest that while IL-10, produced by MoDC as a result of exposure to live BRSV, may affect IL-12 and IL-15 synthesis by MoDC, it does not appear to affect the cytokine response of BRSV-specific memory CD4(+) T cells.
671 12167647 Chimeric co-stimulatory molecules that selectively act through CD28 or CTLA-4 on human T cells.
672 12167647 CD28 and CTLA-4 (CD152) play a pivotal role in the regulation of T cell activation.
673 12167647 Upon ligation by CD80 (B7-1) or CD86 (B7-2), CD28 induces T cell proliferation, cytokine production, and effector functions, whereas CTLA-4 signaling inhibits expansion of activated T cells and induces tolerance.
674 12167647 Therefore, we hypothesized that co-stimulatory molecules that preferentially bind CD28 or CTLA-4 would have dramatically altered biological properties.
675 12167647 In contrast to wild-type CD80, the evolved co-stimulatory molecules, termed CD28-binding protein (CD28BP) and CTLA-4-binding protein (CTLA-4BP), selectively bind to CD28 or CTLA-4, respectively.
676 12167647 Furthermore, CD28BP has improved capacity to induce human T cell proliferation and interferon-gamma production compared with wild-type CD80.
677 12167647 These molecules provide a new approach to characterization of CD28 and CTLA-4 signals and to manipulation of the T cell response.
678 12167647 Chimeric co-stimulatory molecules that selectively act through CD28 or CTLA-4 on human T cells.
679 12167647 CD28 and CTLA-4 (CD152) play a pivotal role in the regulation of T cell activation.
680 12167647 Upon ligation by CD80 (B7-1) or CD86 (B7-2), CD28 induces T cell proliferation, cytokine production, and effector functions, whereas CTLA-4 signaling inhibits expansion of activated T cells and induces tolerance.
681 12167647 Therefore, we hypothesized that co-stimulatory molecules that preferentially bind CD28 or CTLA-4 would have dramatically altered biological properties.
682 12167647 In contrast to wild-type CD80, the evolved co-stimulatory molecules, termed CD28-binding protein (CD28BP) and CTLA-4-binding protein (CTLA-4BP), selectively bind to CD28 or CTLA-4, respectively.
683 12167647 Furthermore, CD28BP has improved capacity to induce human T cell proliferation and interferon-gamma production compared with wild-type CD80.
684 12167647 These molecules provide a new approach to characterization of CD28 and CTLA-4 signals and to manipulation of the T cell response.
685 12167647 Chimeric co-stimulatory molecules that selectively act through CD28 or CTLA-4 on human T cells.
686 12167647 CD28 and CTLA-4 (CD152) play a pivotal role in the regulation of T cell activation.
687 12167647 Upon ligation by CD80 (B7-1) or CD86 (B7-2), CD28 induces T cell proliferation, cytokine production, and effector functions, whereas CTLA-4 signaling inhibits expansion of activated T cells and induces tolerance.
688 12167647 Therefore, we hypothesized that co-stimulatory molecules that preferentially bind CD28 or CTLA-4 would have dramatically altered biological properties.
689 12167647 In contrast to wild-type CD80, the evolved co-stimulatory molecules, termed CD28-binding protein (CD28BP) and CTLA-4-binding protein (CTLA-4BP), selectively bind to CD28 or CTLA-4, respectively.
690 12167647 Furthermore, CD28BP has improved capacity to induce human T cell proliferation and interferon-gamma production compared with wild-type CD80.
691 12167647 These molecules provide a new approach to characterization of CD28 and CTLA-4 signals and to manipulation of the T cell response.
692 12173299 In parallel, the proliferative response of CD4+ T-cells to the primary protein antigens keyhole limpet hemocyanin (KLH) and sperm whale myoglobin (SWM) was measured in vitro using monocyte-derived dendritic cells (MDDC) as antigen-presenting cells.
693 12173299 Antigen-induced interferon-gamma and interleukin-13 release was reduced in type-1 diabetes patients, localizing the impairment to the level of antigen-presenting cell-T-cell interaction.
694 12173299 FACS analysis of CD80 (B7.1), CD86 (B7.2), and HLA-DR expression on MDDC could not demonstrate significant differences in the expression of these molecules between type-1 and type-2 diabetes patients and healthy controls.
695 12176885 Efficient gene transfer of CD40 ligand into primary B-CLL cells using recombinant adeno-associated virus (rAAV) vectors.
696 12176885 Using an optimized adenovirus-free packaging system, recombinant adeno-associated virus (rAAV) vectors coding for the enhanced green fluorescent protein (AAV/EGFP) and CD40 ligand (AAV/CD40L) were packaged and highly purified resulting in genomic titers up to 3 x 10(11)/mL.
697 12176885 Cells obtained from 24 patients with B-CLL were infected with AAV/EGFP or AAV/CD40L at a multiplicity of infection (MOI) of 100 resulting in transgene expression in up to 97% of cells as detected by flow cytometry 48 hours after infection.
698 12176885 Transduction with AAV/CD40L resulted in up-regulation of the costimulatory molecule CD80 not only on infected CLL cells but also on noninfected bystander leukemia B cells, whereas this effect induced specific proliferation of HLA-matched allogeneic T cells.
699 12191571 DC(RMAT) displayed an up-regulated expression of immune molecules (Ia(d), CD40, CD54, CD80 and CD86) and certain cytokines/chemokines, and enhanced ability of allogeneic T cell stimulation when compared to DC(IMAT).
700 12200676 Transduction of acute myeloid leukemia cells with third generation self-inactivating lentiviral vectors expressing CD80 and GM-CSF: effects on proliferation, differentiation, and stimulation of allogeneic and autologous anti-leukemia immune responses.
701 12200676 We propose to develop cell vaccines by genetic modification of AML cells with CD80, an essential T cell costimulator that is lacking in the majority of AML cases, and GM-CSF, to induce proliferation and activation of professional antigen-presenting cells.
702 12200676 CD80 and GM-CSF expression by these vectors was higher than that reported with second generation vectors (Stripecke et al, Blood 2000; 96: 1317-1326).
703 12200676 Allogeneic and autologous mixed lymphocyte reactions performed with transduced irradiated AML cells expressing CD80 and/or GM-CSF demonstrated that expression of either transgene enhanced T cell activation.
704 12200676 Transduction of acute myeloid leukemia cells with third generation self-inactivating lentiviral vectors expressing CD80 and GM-CSF: effects on proliferation, differentiation, and stimulation of allogeneic and autologous anti-leukemia immune responses.
705 12200676 We propose to develop cell vaccines by genetic modification of AML cells with CD80, an essential T cell costimulator that is lacking in the majority of AML cases, and GM-CSF, to induce proliferation and activation of professional antigen-presenting cells.
706 12200676 CD80 and GM-CSF expression by these vectors was higher than that reported with second generation vectors (Stripecke et al, Blood 2000; 96: 1317-1326).
707 12200676 Allogeneic and autologous mixed lymphocyte reactions performed with transduced irradiated AML cells expressing CD80 and/or GM-CSF demonstrated that expression of either transgene enhanced T cell activation.
708 12200676 Transduction of acute myeloid leukemia cells with third generation self-inactivating lentiviral vectors expressing CD80 and GM-CSF: effects on proliferation, differentiation, and stimulation of allogeneic and autologous anti-leukemia immune responses.
709 12200676 We propose to develop cell vaccines by genetic modification of AML cells with CD80, an essential T cell costimulator that is lacking in the majority of AML cases, and GM-CSF, to induce proliferation and activation of professional antigen-presenting cells.
710 12200676 CD80 and GM-CSF expression by these vectors was higher than that reported with second generation vectors (Stripecke et al, Blood 2000; 96: 1317-1326).
711 12200676 Allogeneic and autologous mixed lymphocyte reactions performed with transduced irradiated AML cells expressing CD80 and/or GM-CSF demonstrated that expression of either transgene enhanced T cell activation.
712 12200676 Transduction of acute myeloid leukemia cells with third generation self-inactivating lentiviral vectors expressing CD80 and GM-CSF: effects on proliferation, differentiation, and stimulation of allogeneic and autologous anti-leukemia immune responses.
713 12200676 We propose to develop cell vaccines by genetic modification of AML cells with CD80, an essential T cell costimulator that is lacking in the majority of AML cases, and GM-CSF, to induce proliferation and activation of professional antigen-presenting cells.
714 12200676 CD80 and GM-CSF expression by these vectors was higher than that reported with second generation vectors (Stripecke et al, Blood 2000; 96: 1317-1326).
715 12200676 Allogeneic and autologous mixed lymphocyte reactions performed with transduced irradiated AML cells expressing CD80 and/or GM-CSF demonstrated that expression of either transgene enhanced T cell activation.
716 12207346 The transition from monocyte to DC is characterized by the up-regulation of CD83, CD86, CD80, CD40 and the down-regulation of CD14.
717 12218781 Mature DC expressed significant amounts of mature DC markers (CD83) and the costimulatory molecules CD80 and CD86.
718 12218781 These clinical grade DC secreted high levels of the chemokines dendritic cell chemokine 1 (DC-CK1), interleukin-8 (IL-8), macrophage-derived chemokine (MDC), and thymus and activation-regulated chemokine (TARC).
719 12355438 A recruitment of B220(+) and MAC-1(+) cells with an up-regulated expression of MHC class I, CD80 (B7.1) and CD54 (ICAM-1) was observed in nasal associated lymphoid tissues from MALP-2 treated mice.
720 12357348 In particular, ex vivo culture of ALL cells with CD40 ligand, incubation of AML cells with granulocyte-macrophage colony-stimulating factor and interleukin-4 (GM-CSF/IL-4) and lentiviral transduction of ALL and AML cells for expression of immunomodulators (CD80 and GM-CSF) are current approaches under investigation for the development of autologous acute leukemia cell vaccines.
721 12391201 CD28, TNF receptor, and IL-12 are critical for CD4-independent cross-priming of therapeutic antitumor CD8+ T cells.
722 12391201 Previously, we have shown that priming of therapeutic CD8(+) T cells in tumor vaccine-draining lymph nodes of mice vaccinated with GM-CSF secreting B16BL6 melanoma cells occurs independent of CD4 T cell help.
723 12391201 In this study, we examined the contribution of the major costimulatory molecules, CD40 ligand (CD40L), CD80, and CD86, in the priming of CD8(+) T cells.
724 12391201 Priming of therapeutic CD8(+) T cells by a GM-CSF-transduced tumor vaccine did not require CD40 and CD40L interactions, as therapeutic T cells could be generated from mice injected with anti-CD40L Ab and from CD40L knockout mice.
725 12391201 However, costimulation via either CD80 or CD86 was required, as therapeutic T cells could be generated from mice injected with either anti-CD80 or anti-CD86 Ab alone, but administration of both Abs completely inhibited the priming of therapeutic T cells.
726 12391201 Blocking experiments also identified that priming of therapeutic T cells in MHC class II-deficient mice required TNFR and IL-12 signaling, but signaling through CD40, lymphotoxin-betaR, or receptor activator of NF-kappaB was not essential.
727 12391201 Thus, cross-priming of therapeutic CD8(+) T cells by a tumor vaccine transduced with GM-CSF requires TNFR, IL-12, and CD28 signaling.
728 12391201 CD28, TNF receptor, and IL-12 are critical for CD4-independent cross-priming of therapeutic antitumor CD8+ T cells.
729 12391201 Previously, we have shown that priming of therapeutic CD8(+) T cells in tumor vaccine-draining lymph nodes of mice vaccinated with GM-CSF secreting B16BL6 melanoma cells occurs independent of CD4 T cell help.
730 12391201 In this study, we examined the contribution of the major costimulatory molecules, CD40 ligand (CD40L), CD80, and CD86, in the priming of CD8(+) T cells.
731 12391201 Priming of therapeutic CD8(+) T cells by a GM-CSF-transduced tumor vaccine did not require CD40 and CD40L interactions, as therapeutic T cells could be generated from mice injected with anti-CD40L Ab and from CD40L knockout mice.
732 12391201 However, costimulation via either CD80 or CD86 was required, as therapeutic T cells could be generated from mice injected with either anti-CD80 or anti-CD86 Ab alone, but administration of both Abs completely inhibited the priming of therapeutic T cells.
733 12391201 Blocking experiments also identified that priming of therapeutic T cells in MHC class II-deficient mice required TNFR and IL-12 signaling, but signaling through CD40, lymphotoxin-betaR, or receptor activator of NF-kappaB was not essential.
734 12391201 Thus, cross-priming of therapeutic CD8(+) T cells by a tumor vaccine transduced with GM-CSF requires TNFR, IL-12, and CD28 signaling.
735 12393401 Using confocal microscopy we have confirmed our previous observation that heat-stressed apoptotic 12B1-D1 leukemia cells (BCR-ABL(+)) express HSP60 and HSP72 on their surface.
736 12393401 However, when stressed apoptotic 12B1-D1 cells were coincubated with immature dendritic cells for 24 hours, this resulted in greater up-regulation of costimulatory molecules (CD40, CD80, and CD86) on the surface of dendritic cells.
737 12439347 In general, DC phenotype was CD14(low), CD86(high), CD40(high), CD80(low), and CD83(low).
738 12445291 In natural immune responses CD4+ T helper (Th) cells, reactive with peptide antigens presented by major histocompatibility complex (MHC) class II molecules on dendritic cells (DC), can drive the maturation of DC that is required for induction of CD8+ cytolytic T-lymphocyte (CTL) immunity.
739 12445291 Proper induction, expansion and maintenance of CTL responses are achieved through delicate interactions between CD4+ T cells, DC and CD8+ T cells involving several ligand-receptor pairs.
740 12445291 Th cells to a large extent operate through up-regulation of CD40L, which then interacts with CD40 on DC to cause DC maturation.
741 12445291 Subsequent CTL induction by activated DC requires CD80/CD86 on the DC to interact with the CD28 costimulatory receptor on CD8+ T cells.
742 12445291 Alternative molecular triggers of DC activation that can support induction of powerful CTL responses include agonistic anti-CD40 antibody or ligands of Toll-like receptors (TLR) such as LPS (TLR4 ligand) or oligodeoxynucleotides containing CpG-motifs (TLR9 ligand).
743 12460195 Furthermore, after exposure to BCG-infected necrotic macrophages, DCs underwent phenotypic changes, including the up-regulation of maturation specific markers (major histocompatibility complex class II, CD40, CD80, and CD86) and the capacity to stimulate antigen-specific CD4+ T cells with higher efficiency than when they were directly infected with a similar number of bacteria.
744 12460195 Antigen presentation following phagocytosis of BCG-infected necrotic macrophages was demonstrated by their ability to stimulate in vitro proliferation and interferon-gamma production of antigen-specific CD4+ T cells.
745 12496156 Splenic dendritic cells (DCs) obtained from mice at 48 h after Listeria monocytogenes infection exhibited up-regulation of CD80 and produced higher titers of gamma interferon (IFN-gamma) and interleukin-12 (IL-12) than did DCs obtained from uninfected mice.
746 12496156 Infected DCs stimulated proliferation of naive CD4(+) and CD8(+) cells in vitro, suggesting that in vivo-infected DCs activate CD8(+) T cells, which are critical in acquired antilisterial resistance, as well as CD4(+) T cells.
747 12496156 These results suggest that DC-derived IL-12, but not IFN-gamma, may play a critical role in induction of acquired antilisterial resistance.
748 12512800 BMDC were generated from bone marrow precursor cells as described previously by culturing the cells in medium containing GM-CSF and IL-4.
749 12512800 Forty to fifty percent of both samples, frozen/thawed as well as fresh BMDC, exhibited characteristic DC morphology, and the DC obtained from the frozen/thawed samples expressed a similar level of MHC class I-, MHC class II-, CD80-, CD86-, CD11c-, CD11b-, CD54- and CD205-molecule as fresh DC.
750 12513792 The phenotype of DC was detected by FCM with CD1a, CD40, CD80, CD86, HLA-A, B, C and HLA-DR monoclonal antibodies.
751 12513792 The level of IL-12 and IFN-gamma in supernatant of DC culture was measured by ELISA.
752 12513792 A high expression of phenotypes was found in HL-60-DC and THP-1-DC stimulated by GM-CSF + IL-4 + TNF-gamma and K562-DC with GM-CSF + IL-4 + IL-12.
753 12536202 Fas ligand-expressing tumors induce tumor-specific protective immunity in the inoculated hosts but vaccination with the apoptotic tumors suppresses antitumor immunity.
754 12536202 The interaction between Fas and Fas ligand (FasL) is involved in the apoptotic death of a number of cells including lymphocytes.
755 12536202 Expression of the CD80 costimulatory molecule in tissues where UV-treated A11/FasL cells were inoculated was lower than the expression at an untreated A11/FasL-injected site.
756 12536236 The ability of acute myeloid leukaemia (AML) cells to acquire dendritic cell (DC)-like characteristics in vitro with a rapid culture method based either on the phorbol ester PMA or calcium ionophores has been studied in comparison to conventional AML-DC cultures with the cytokines granulocyte-macrophage colony-stimulating factor (GM-CSF), tumour necrosis factor-alpha (TNF-alpha), interleukin-3 (IL-3), SCF, FLT3-L and IL-4.
757 12536236 The most mature APC were generated by calcium ionophore A23187 plus IL-4, as evidenced by the higher expression of CD40, CD80, CD86 and HLA-DR.
758 12547595 Upon stimulation by infectious agent products, dendritic cells (DC) become activated, express high levels of class I and class II antigens, CD80, CD86 and CD83 and migrate to secondary lymphoid organs where they can prime naive CD4-helper and CD8-cytotoxic T-cells.
759 12547595 Cognate CD4(+) T-cell help mediated by CD40L along with DC stimulation with another T-cell effector molecule, termed lymphocyte activated gene-3 (LAG-3 or CD223, a ligand for MHC class II) have been shown to induce this maturation process.
760 12547595 Both CD40L and LAG-3 have been used as vaccine adjuvants to induce CTL and CD4 Th1 responses.
761 12547595 LAG-3Ig, unlike CD40L, induced an inflammatory signal in terms of IL-8 and MIP-1alpha/CCL3 production and, in contrast to LPS, induced production of chemokines (MDC/CCL22 and TARC/CCL17) known to direct the migration of maturing DC to lymph nodes.
762 12547595 In LAG-3-matured DC, surface expression of CCR5 (a receptor for MIP-1alpha/CCL3) was down-regulated and CCR7 (a receptor for MIP-3beta and SLC) was up-regulated.
763 12547595 However, LAG-3-matured, but not LPS- or CD40L-matured DC retained their capacity to migrate in chemotaxis chambers and to respond to MIP-1alpha.
764 12547598 Immature human DC were generated from peripheral blood monocytes cultured with GM-CSF and IL-4.
765 12547598 Uptake of antigen by DC and the degree of expression of the cell surface markers MHC class II, CD80, CD86 and the DC maturation marker CD83, was investigated by flow cytometry following incubation with liposomes or solution containing FITC-conjugated antigen.
766 12571630 Human and murine leukemic cells were transfected with retroviral vectors or plasmids carrying beta-galactosidase, GM-CSF or CD80 genes.
767 12594842 CD28 is an important costimulatory molecule for T cells, and it has been shown that cell surface expression of its ligands, CD80 and CD86, can enhance cellular immune responses against tumor cells, however, these tumor cells do not normally express the ligands.
768 12594842 Many new vaccines will be based upon soluble recombinant antigens, and in vaccination with these antigens CD80 and CD86 would normally be expressed on activated antigen-presenting cells and additional stimulation through CD28 would not be predicted to enhance responses further.
769 12594842 The mode of action of CD28 antibodies appears to be linked to their ability to signal through CD28, but not to bind the negative feedback regulatory antigen, CTLA-4.
770 12594842 CD28 is an important costimulatory molecule for T cells, and it has been shown that cell surface expression of its ligands, CD80 and CD86, can enhance cellular immune responses against tumor cells, however, these tumor cells do not normally express the ligands.
771 12594842 Many new vaccines will be based upon soluble recombinant antigens, and in vaccination with these antigens CD80 and CD86 would normally be expressed on activated antigen-presenting cells and additional stimulation through CD28 would not be predicted to enhance responses further.
772 12594842 The mode of action of CD28 antibodies appears to be linked to their ability to signal through CD28, but not to bind the negative feedback regulatory antigen, CTLA-4.
773 12616108 Sera obtained before and after vaccination were analyzed for antibodies to tumor cell lysate, MUC1, HER2/neu and p53.
774 12616108 Eight of 24 patients made an antibody response to HER-2/neu, four of 24 to MUC1 and one of 24 to p53.
775 12616108 Although antibody production to a variety of tumor cell-associated antigens was detected our results suggest that a whole cell vaccine comprising a CD80-transfected allogeneic breast cancer cell line with adjuvant BCG or GM-CSF was not a reliable method to induce significant antibody responses in women with advanced breast cancer.
776 12626542 Members of the TNF ligand superfamily and the TNFR superfamily contribute to this costimulatory molecule signaling.
777 12626542 Coexpression of 4-1BBL in these E7-expressing DCs increased effector and memory CTL responses when they were used for immunization. 4-1BBL expression up-regulated CD80 and CD86 second signaling molecules in DCs.
778 12626542 We also report an additive effect of 4-1BBL and receptor activator of NF-kappa B/receptor activator of NF-kappa B ligand coexpression in E7-transduced DC immunogens on E7-directed effector and memory CTL responses and on MHC class II and CD80/86 expression in DCs.
779 12626542 Members of the TNF ligand superfamily and the TNFR superfamily contribute to this costimulatory molecule signaling.
780 12626542 Coexpression of 4-1BBL in these E7-expressing DCs increased effector and memory CTL responses when they were used for immunization. 4-1BBL expression up-regulated CD80 and CD86 second signaling molecules in DCs.
781 12626542 We also report an additive effect of 4-1BBL and receptor activator of NF-kappa B/receptor activator of NF-kappa B ligand coexpression in E7-transduced DC immunogens on E7-directed effector and memory CTL responses and on MHC class II and CD80/86 expression in DCs.
782 12639819 OM-197 upregulated the expression of HLA-DR, CD80, CD86, CD83, CD40 and CD54 at the surface of myeloid DC naturally present in blood as well as of DC generated in vitro from monocytes using IL-4 and GM-CSF.
783 12639819 OM-197 also induced the release of IL-12 and TNF-alpha from DC.
784 12639819 Finally, DC incubated with OM-197 after pulsing with hepatitis B surface antigen (HBs Ag) induced in vitro expansion of IFN-gamma-secreting HBs Ag-specific CD4(+) T lymphocytes from naive individuals.
785 12654787 The immunopotentiating capacity of CT- and CTB-linked antigen was associated with both upregulated secretion of interleukin-1beta by the pulsed DC and increased expression of CD80 and CD86 on the DC surface.
786 12669245 In vitro culture of immature DC generated from adherent peripheral blood mononuclear cells (PBMC) using granulocyte macrophage-colony stimulating factor (GM-CSF) and interleukin-4 (IL-4) with OK432 at various doses (0.01 to 0.1 KE/ml) for 2 days resulted in increased cell surface expression of CD80, CD83, CD86 and ICAM-1 in a dose-dependent manner.
787 12669245 Assay of cytokine production in OK-DC after 2 days in culture revealed that OK432 was a strong inducer of IL-12 and interferon-gamma (IFN-gamma).
788 12672905 We showed that BCG could promote cord blood monocyte-derived DC maturation by up-regulation of CD80, CD83, CD86, CD40, and MHC class II molecules and down-regulation of mannose receptor.
789 12672905 BCG was able to induce similar levels of tumor necrosis factor-alpha and IL-10 but no bioactive IL-12p70 production from cord blood DCs as from adult blood DCs.
790 12672905 Both non-BCG-treated and BCG-treated cord blood DCs efficiently induced a high level of IL-10, medium level of interferon-gamma, but little IL-4 production by cord blood naïve CD4+ T cells.
791 12672905 Heat shock protein 65, a key component of BCG, had no effect on cord blood DC maturation in terms of CD86, MHC class II, and mannose receptor up-regulation.
792 12706680 This effect was due to activation of MHC class I-restricted CD8(+) T cells coupled with an increased secretion of proinflammatory cytokines IFN-gamma, TNF-alpha and IL-2.
793 12706680 Also, specific activation of dendritic cells was indicated by a two-three-fold upregulation of their costimulatory CD80 and MHC class II molecules.
794 12739069 High levels of Fas ligand and MHC class II in the absence of CD80 or CD86 expression and a decreased CD4+ T cell Infiltration, enables murine skin tumours to progress.
795 12739069 It has been hypothesized that tumour cells might evade immunological destruction by expressing Fas ligand (FasL), a molecule which induces apoptosis in Fas(+) target cells.
796 12739069 Detailed flow cytometric analysis was used to study tumour cell expression of FasL, Fas, CD80, CD86 and MHC class II.
797 12739069 We also analysed the percentage of apoptotic tumour cells in vivo using annexin V and correlated skin tumour progression with CD4 and CD8 T cell infiltration.
798 12739069 The percentage of progressor tumours expressing MHC II was significantly greater than regressor tumours, while neither tumour expressed CD80 or CD86 costimulatory molecules.
799 12739069 The results suggest that progression of skin tumours occurs if tumour cells express high levels of MHC II but not costimulatory molecules such as CD80 or CD86.
800 12739069 High levels of Fas ligand and MHC class II in the absence of CD80 or CD86 expression and a decreased CD4+ T cell Infiltration, enables murine skin tumours to progress.
801 12739069 It has been hypothesized that tumour cells might evade immunological destruction by expressing Fas ligand (FasL), a molecule which induces apoptosis in Fas(+) target cells.
802 12739069 Detailed flow cytometric analysis was used to study tumour cell expression of FasL, Fas, CD80, CD86 and MHC class II.
803 12739069 We also analysed the percentage of apoptotic tumour cells in vivo using annexin V and correlated skin tumour progression with CD4 and CD8 T cell infiltration.
804 12739069 The percentage of progressor tumours expressing MHC II was significantly greater than regressor tumours, while neither tumour expressed CD80 or CD86 costimulatory molecules.
805 12739069 The results suggest that progression of skin tumours occurs if tumour cells express high levels of MHC II but not costimulatory molecules such as CD80 or CD86.
806 12739069 High levels of Fas ligand and MHC class II in the absence of CD80 or CD86 expression and a decreased CD4+ T cell Infiltration, enables murine skin tumours to progress.
807 12739069 It has been hypothesized that tumour cells might evade immunological destruction by expressing Fas ligand (FasL), a molecule which induces apoptosis in Fas(+) target cells.
808 12739069 Detailed flow cytometric analysis was used to study tumour cell expression of FasL, Fas, CD80, CD86 and MHC class II.
809 12739069 We also analysed the percentage of apoptotic tumour cells in vivo using annexin V and correlated skin tumour progression with CD4 and CD8 T cell infiltration.
810 12739069 The percentage of progressor tumours expressing MHC II was significantly greater than regressor tumours, while neither tumour expressed CD80 or CD86 costimulatory molecules.
811 12739069 The results suggest that progression of skin tumours occurs if tumour cells express high levels of MHC II but not costimulatory molecules such as CD80 or CD86.
812 12739069 High levels of Fas ligand and MHC class II in the absence of CD80 or CD86 expression and a decreased CD4+ T cell Infiltration, enables murine skin tumours to progress.
813 12739069 It has been hypothesized that tumour cells might evade immunological destruction by expressing Fas ligand (FasL), a molecule which induces apoptosis in Fas(+) target cells.
814 12739069 Detailed flow cytometric analysis was used to study tumour cell expression of FasL, Fas, CD80, CD86 and MHC class II.
815 12739069 We also analysed the percentage of apoptotic tumour cells in vivo using annexin V and correlated skin tumour progression with CD4 and CD8 T cell infiltration.
816 12739069 The percentage of progressor tumours expressing MHC II was significantly greater than regressor tumours, while neither tumour expressed CD80 or CD86 costimulatory molecules.
817 12739069 The results suggest that progression of skin tumours occurs if tumour cells express high levels of MHC II but not costimulatory molecules such as CD80 or CD86.
818 12761091 In this study, we investigated the role of this costimulatory pathway in resistance to Trypanosoma cruzi infection by using CD28-deficient mice and blocking antibodies against CD80 and CD86.
819 12761091 The blockade of both CD80 and CD86 by administering specific monoclonal antibodies also exacerbated T. cruzi infection in wild-type mice.
820 12761091 The induction of T. cruzi antigen-specific CD8(+) T cells was also impaired in T. cruzi-infected, CD28-deficient mice.
821 12761091 In addition to these defects in natural protection against T. cruzi infection, CD28-deficient mice were also defective in the induction of CD8(+)-T-cell-mediated protective immunity against T. cruzi infection by DNA vaccination.
822 12761091 In this study, we investigated the role of this costimulatory pathway in resistance to Trypanosoma cruzi infection by using CD28-deficient mice and blocking antibodies against CD80 and CD86.
823 12761091 The blockade of both CD80 and CD86 by administering specific monoclonal antibodies also exacerbated T. cruzi infection in wild-type mice.
824 12761091 The induction of T. cruzi antigen-specific CD8(+) T cells was also impaired in T. cruzi-infected, CD28-deficient mice.
825 12761091 In addition to these defects in natural protection against T. cruzi infection, CD28-deficient mice were also defective in the induction of CD8(+)-T-cell-mediated protective immunity against T. cruzi infection by DNA vaccination.
826 12798304 Dual expression of CD80 and CD86 produces a tumor vaccine superior to single expression of either molecule.
827 12798304 An aggressive subclone of N2a and the less aggressive parental line were transfected with CD80, CD86, or both molecules and stable lines were established.
828 12798304 The less aggressive N2a expressing either CD80 or CD86 induced anti-tumor immunity.
829 12798304 In contrast, dual expression of CD80 and CD86 was required to initiate a protective anti-tumor immune response against the aggressive subclone.
830 12798304 Control of tumor growth was dependent on CD8+ lymphocytes that infiltrated dual-expressing (CD80 and CD86) lesions.
831 12798304 These tumor-infiltrating lymphocytes (TIL) exhibited a non-classical mechanism of tumor cell lysis that may require both the up-regulation of cell surface molecules on the tumor and the subsequent lytic activity normally associated with CD8+ TIL.
832 12798304 Although Fas was up-regulated by the tumor in the presence of IFN-gamma, N2a and transfected N2a cell lines were not sensitive to Fas-mediated lysis.
833 12798304 Dual expression of CD80 and CD86 produces a tumor vaccine superior to single expression of either molecule.
834 12798304 An aggressive subclone of N2a and the less aggressive parental line were transfected with CD80, CD86, or both molecules and stable lines were established.
835 12798304 The less aggressive N2a expressing either CD80 or CD86 induced anti-tumor immunity.
836 12798304 In contrast, dual expression of CD80 and CD86 was required to initiate a protective anti-tumor immune response against the aggressive subclone.
837 12798304 Control of tumor growth was dependent on CD8+ lymphocytes that infiltrated dual-expressing (CD80 and CD86) lesions.
838 12798304 These tumor-infiltrating lymphocytes (TIL) exhibited a non-classical mechanism of tumor cell lysis that may require both the up-regulation of cell surface molecules on the tumor and the subsequent lytic activity normally associated with CD8+ TIL.
839 12798304 Although Fas was up-regulated by the tumor in the presence of IFN-gamma, N2a and transfected N2a cell lines were not sensitive to Fas-mediated lysis.
840 12798304 Dual expression of CD80 and CD86 produces a tumor vaccine superior to single expression of either molecule.
841 12798304 An aggressive subclone of N2a and the less aggressive parental line were transfected with CD80, CD86, or both molecules and stable lines were established.
842 12798304 The less aggressive N2a expressing either CD80 or CD86 induced anti-tumor immunity.
843 12798304 In contrast, dual expression of CD80 and CD86 was required to initiate a protective anti-tumor immune response against the aggressive subclone.
844 12798304 Control of tumor growth was dependent on CD8+ lymphocytes that infiltrated dual-expressing (CD80 and CD86) lesions.
845 12798304 These tumor-infiltrating lymphocytes (TIL) exhibited a non-classical mechanism of tumor cell lysis that may require both the up-regulation of cell surface molecules on the tumor and the subsequent lytic activity normally associated with CD8+ TIL.
846 12798304 Although Fas was up-regulated by the tumor in the presence of IFN-gamma, N2a and transfected N2a cell lines were not sensitive to Fas-mediated lysis.
847 12798304 Dual expression of CD80 and CD86 produces a tumor vaccine superior to single expression of either molecule.
848 12798304 An aggressive subclone of N2a and the less aggressive parental line were transfected with CD80, CD86, or both molecules and stable lines were established.
849 12798304 The less aggressive N2a expressing either CD80 or CD86 induced anti-tumor immunity.
850 12798304 In contrast, dual expression of CD80 and CD86 was required to initiate a protective anti-tumor immune response against the aggressive subclone.
851 12798304 Control of tumor growth was dependent on CD8+ lymphocytes that infiltrated dual-expressing (CD80 and CD86) lesions.
852 12798304 These tumor-infiltrating lymphocytes (TIL) exhibited a non-classical mechanism of tumor cell lysis that may require both the up-regulation of cell surface molecules on the tumor and the subsequent lytic activity normally associated with CD8+ TIL.
853 12798304 Although Fas was up-regulated by the tumor in the presence of IFN-gamma, N2a and transfected N2a cell lines were not sensitive to Fas-mediated lysis.
854 12798304 Dual expression of CD80 and CD86 produces a tumor vaccine superior to single expression of either molecule.
855 12798304 An aggressive subclone of N2a and the less aggressive parental line were transfected with CD80, CD86, or both molecules and stable lines were established.
856 12798304 The less aggressive N2a expressing either CD80 or CD86 induced anti-tumor immunity.
857 12798304 In contrast, dual expression of CD80 and CD86 was required to initiate a protective anti-tumor immune response against the aggressive subclone.
858 12798304 Control of tumor growth was dependent on CD8+ lymphocytes that infiltrated dual-expressing (CD80 and CD86) lesions.
859 12798304 These tumor-infiltrating lymphocytes (TIL) exhibited a non-classical mechanism of tumor cell lysis that may require both the up-regulation of cell surface molecules on the tumor and the subsequent lytic activity normally associated with CD8+ TIL.
860 12798304 Although Fas was up-regulated by the tumor in the presence of IFN-gamma, N2a and transfected N2a cell lines were not sensitive to Fas-mediated lysis.
861 12832444 Three DC functions that may be critical for immunization potential are expression of CD80/86, cytokine production following CD40 engagement, and migration to chemokine receptor 7-binding chemokines.
862 12832444 Although high expression of CD80/86 and migration to 6Ckine + macrophage-inflammatory protein-3beta were properties of mature DC, cytokine production following CD40 ligation was superior by immature DC.
863 12832444 Three DC functions that may be critical for immunization potential are expression of CD80/86, cytokine production following CD40 engagement, and migration to chemokine receptor 7-binding chemokines.
864 12832444 Although high expression of CD80/86 and migration to 6Ckine + macrophage-inflammatory protein-3beta were properties of mature DC, cytokine production following CD40 ligation was superior by immature DC.
865 12834622 Costimulatory function of umbilical cord blood CD14+ and CD34+ derived dendritic cells.
866 12834622 Dendritic cells (DCs) consist of a heterogeneous population of hematopoietic cells characterized by their unique dendritic morphology, their efficient antigen-presenting capability to activate naive CD4(+) and CD8(+) T cells, and their lack of lineage specific markers.
867 12834622 CD14(+) monocytes and CD34(+) stem cells were isolated from human umbilical cord blood and were induced to differentiate into dendritic cells using 100 ng/mL granulocyte-macrophage colony stimulating factor (GM-CSF), 25 ng/mL IL-4, 2.5 ng/mL tumor necrosis factor-alpha (TNF-alpha), 100 ng/mL GM-CSF, 25 ng/mL stem cell factor, and 2.5 ng/mL TNF-alpha, respectively.
868 12834622 Flow cytometric analysis revealed that the 14-day-old dendritic cells were CD80(+), CD86(+), CD83(+), CD54(+), CD1a(+), CD11b(+), CD11c(+), HLA-DR(+), CD34(-), CD3(-), CD19(-), CD14(-), and CD16(-).
869 12834622 Reverse transcription polymerase chain reaction was employed to detect expression of mRNA for CD80 and CD86.
870 12834622 Differentiating monocytes initially expressed CD86 while CD80 appeared on day 2.
871 12834622 Differentiating stem cells expressed CD80 and CD86 on day 2 of culture.
872 12834622 The surface expression of CD80 and CD86 was studied over the course of differentiation.
873 12834622 Prior to the functional assay, CD14(+) and CD34(+) derived DCs were stimulated for 18 h with 0.1 mg/mL and 1.0 mg/mL E. coli lipopolyssacharide, respectively.
874 12834622 Monoclonal antibodies (mabs) to CD80 and CD86 were employed to assess their costimulatory roles.
875 12834622 A decrease of stimulation as depicted by decreased T cell activation was significant with mabs to both CD80 and CD86 on monocyte-derived DCs while only mabs to CD86 induced decreased T cell activation by stem cell-derived DCs.
876 12834622 The varied functional role of CD80 and CD86 costimulatory molecules is associated with DC differentiation from distinct cord blood isolated hematopoietic lineages.
877 12834622 Costimulatory function of umbilical cord blood CD14+ and CD34+ derived dendritic cells.
878 12834622 Dendritic cells (DCs) consist of a heterogeneous population of hematopoietic cells characterized by their unique dendritic morphology, their efficient antigen-presenting capability to activate naive CD4(+) and CD8(+) T cells, and their lack of lineage specific markers.
879 12834622 CD14(+) monocytes and CD34(+) stem cells were isolated from human umbilical cord blood and were induced to differentiate into dendritic cells using 100 ng/mL granulocyte-macrophage colony stimulating factor (GM-CSF), 25 ng/mL IL-4, 2.5 ng/mL tumor necrosis factor-alpha (TNF-alpha), 100 ng/mL GM-CSF, 25 ng/mL stem cell factor, and 2.5 ng/mL TNF-alpha, respectively.
880 12834622 Flow cytometric analysis revealed that the 14-day-old dendritic cells were CD80(+), CD86(+), CD83(+), CD54(+), CD1a(+), CD11b(+), CD11c(+), HLA-DR(+), CD34(-), CD3(-), CD19(-), CD14(-), and CD16(-).
881 12834622 Reverse transcription polymerase chain reaction was employed to detect expression of mRNA for CD80 and CD86.
882 12834622 Differentiating monocytes initially expressed CD86 while CD80 appeared on day 2.
883 12834622 Differentiating stem cells expressed CD80 and CD86 on day 2 of culture.
884 12834622 The surface expression of CD80 and CD86 was studied over the course of differentiation.
885 12834622 Prior to the functional assay, CD14(+) and CD34(+) derived DCs were stimulated for 18 h with 0.1 mg/mL and 1.0 mg/mL E. coli lipopolyssacharide, respectively.
886 12834622 Monoclonal antibodies (mabs) to CD80 and CD86 were employed to assess their costimulatory roles.
887 12834622 A decrease of stimulation as depicted by decreased T cell activation was significant with mabs to both CD80 and CD86 on monocyte-derived DCs while only mabs to CD86 induced decreased T cell activation by stem cell-derived DCs.
888 12834622 The varied functional role of CD80 and CD86 costimulatory molecules is associated with DC differentiation from distinct cord blood isolated hematopoietic lineages.
889 12834622 Costimulatory function of umbilical cord blood CD14+ and CD34+ derived dendritic cells.
890 12834622 Dendritic cells (DCs) consist of a heterogeneous population of hematopoietic cells characterized by their unique dendritic morphology, their efficient antigen-presenting capability to activate naive CD4(+) and CD8(+) T cells, and their lack of lineage specific markers.
891 12834622 CD14(+) monocytes and CD34(+) stem cells were isolated from human umbilical cord blood and were induced to differentiate into dendritic cells using 100 ng/mL granulocyte-macrophage colony stimulating factor (GM-CSF), 25 ng/mL IL-4, 2.5 ng/mL tumor necrosis factor-alpha (TNF-alpha), 100 ng/mL GM-CSF, 25 ng/mL stem cell factor, and 2.5 ng/mL TNF-alpha, respectively.
892 12834622 Flow cytometric analysis revealed that the 14-day-old dendritic cells were CD80(+), CD86(+), CD83(+), CD54(+), CD1a(+), CD11b(+), CD11c(+), HLA-DR(+), CD34(-), CD3(-), CD19(-), CD14(-), and CD16(-).
893 12834622 Reverse transcription polymerase chain reaction was employed to detect expression of mRNA for CD80 and CD86.
894 12834622 Differentiating monocytes initially expressed CD86 while CD80 appeared on day 2.
895 12834622 Differentiating stem cells expressed CD80 and CD86 on day 2 of culture.
896 12834622 The surface expression of CD80 and CD86 was studied over the course of differentiation.
897 12834622 Prior to the functional assay, CD14(+) and CD34(+) derived DCs were stimulated for 18 h with 0.1 mg/mL and 1.0 mg/mL E. coli lipopolyssacharide, respectively.
898 12834622 Monoclonal antibodies (mabs) to CD80 and CD86 were employed to assess their costimulatory roles.
899 12834622 A decrease of stimulation as depicted by decreased T cell activation was significant with mabs to both CD80 and CD86 on monocyte-derived DCs while only mabs to CD86 induced decreased T cell activation by stem cell-derived DCs.
900 12834622 The varied functional role of CD80 and CD86 costimulatory molecules is associated with DC differentiation from distinct cord blood isolated hematopoietic lineages.
901 12834622 Costimulatory function of umbilical cord blood CD14+ and CD34+ derived dendritic cells.
902 12834622 Dendritic cells (DCs) consist of a heterogeneous population of hematopoietic cells characterized by their unique dendritic morphology, their efficient antigen-presenting capability to activate naive CD4(+) and CD8(+) T cells, and their lack of lineage specific markers.
903 12834622 CD14(+) monocytes and CD34(+) stem cells were isolated from human umbilical cord blood and were induced to differentiate into dendritic cells using 100 ng/mL granulocyte-macrophage colony stimulating factor (GM-CSF), 25 ng/mL IL-4, 2.5 ng/mL tumor necrosis factor-alpha (TNF-alpha), 100 ng/mL GM-CSF, 25 ng/mL stem cell factor, and 2.5 ng/mL TNF-alpha, respectively.
904 12834622 Flow cytometric analysis revealed that the 14-day-old dendritic cells were CD80(+), CD86(+), CD83(+), CD54(+), CD1a(+), CD11b(+), CD11c(+), HLA-DR(+), CD34(-), CD3(-), CD19(-), CD14(-), and CD16(-).
905 12834622 Reverse transcription polymerase chain reaction was employed to detect expression of mRNA for CD80 and CD86.
906 12834622 Differentiating monocytes initially expressed CD86 while CD80 appeared on day 2.
907 12834622 Differentiating stem cells expressed CD80 and CD86 on day 2 of culture.
908 12834622 The surface expression of CD80 and CD86 was studied over the course of differentiation.
909 12834622 Prior to the functional assay, CD14(+) and CD34(+) derived DCs were stimulated for 18 h with 0.1 mg/mL and 1.0 mg/mL E. coli lipopolyssacharide, respectively.
910 12834622 Monoclonal antibodies (mabs) to CD80 and CD86 were employed to assess their costimulatory roles.
911 12834622 A decrease of stimulation as depicted by decreased T cell activation was significant with mabs to both CD80 and CD86 on monocyte-derived DCs while only mabs to CD86 induced decreased T cell activation by stem cell-derived DCs.
912 12834622 The varied functional role of CD80 and CD86 costimulatory molecules is associated with DC differentiation from distinct cord blood isolated hematopoietic lineages.
913 12834622 Costimulatory function of umbilical cord blood CD14+ and CD34+ derived dendritic cells.
914 12834622 Dendritic cells (DCs) consist of a heterogeneous population of hematopoietic cells characterized by their unique dendritic morphology, their efficient antigen-presenting capability to activate naive CD4(+) and CD8(+) T cells, and their lack of lineage specific markers.
915 12834622 CD14(+) monocytes and CD34(+) stem cells were isolated from human umbilical cord blood and were induced to differentiate into dendritic cells using 100 ng/mL granulocyte-macrophage colony stimulating factor (GM-CSF), 25 ng/mL IL-4, 2.5 ng/mL tumor necrosis factor-alpha (TNF-alpha), 100 ng/mL GM-CSF, 25 ng/mL stem cell factor, and 2.5 ng/mL TNF-alpha, respectively.
916 12834622 Flow cytometric analysis revealed that the 14-day-old dendritic cells were CD80(+), CD86(+), CD83(+), CD54(+), CD1a(+), CD11b(+), CD11c(+), HLA-DR(+), CD34(-), CD3(-), CD19(-), CD14(-), and CD16(-).
917 12834622 Reverse transcription polymerase chain reaction was employed to detect expression of mRNA for CD80 and CD86.
918 12834622 Differentiating monocytes initially expressed CD86 while CD80 appeared on day 2.
919 12834622 Differentiating stem cells expressed CD80 and CD86 on day 2 of culture.
920 12834622 The surface expression of CD80 and CD86 was studied over the course of differentiation.
921 12834622 Prior to the functional assay, CD14(+) and CD34(+) derived DCs were stimulated for 18 h with 0.1 mg/mL and 1.0 mg/mL E. coli lipopolyssacharide, respectively.
922 12834622 Monoclonal antibodies (mabs) to CD80 and CD86 were employed to assess their costimulatory roles.
923 12834622 A decrease of stimulation as depicted by decreased T cell activation was significant with mabs to both CD80 and CD86 on monocyte-derived DCs while only mabs to CD86 induced decreased T cell activation by stem cell-derived DCs.
924 12834622 The varied functional role of CD80 and CD86 costimulatory molecules is associated with DC differentiation from distinct cord blood isolated hematopoietic lineages.
925 12834622 Costimulatory function of umbilical cord blood CD14+ and CD34+ derived dendritic cells.
926 12834622 Dendritic cells (DCs) consist of a heterogeneous population of hematopoietic cells characterized by their unique dendritic morphology, their efficient antigen-presenting capability to activate naive CD4(+) and CD8(+) T cells, and their lack of lineage specific markers.
927 12834622 CD14(+) monocytes and CD34(+) stem cells were isolated from human umbilical cord blood and were induced to differentiate into dendritic cells using 100 ng/mL granulocyte-macrophage colony stimulating factor (GM-CSF), 25 ng/mL IL-4, 2.5 ng/mL tumor necrosis factor-alpha (TNF-alpha), 100 ng/mL GM-CSF, 25 ng/mL stem cell factor, and 2.5 ng/mL TNF-alpha, respectively.
928 12834622 Flow cytometric analysis revealed that the 14-day-old dendritic cells were CD80(+), CD86(+), CD83(+), CD54(+), CD1a(+), CD11b(+), CD11c(+), HLA-DR(+), CD34(-), CD3(-), CD19(-), CD14(-), and CD16(-).
929 12834622 Reverse transcription polymerase chain reaction was employed to detect expression of mRNA for CD80 and CD86.
930 12834622 Differentiating monocytes initially expressed CD86 while CD80 appeared on day 2.
931 12834622 Differentiating stem cells expressed CD80 and CD86 on day 2 of culture.
932 12834622 The surface expression of CD80 and CD86 was studied over the course of differentiation.
933 12834622 Prior to the functional assay, CD14(+) and CD34(+) derived DCs were stimulated for 18 h with 0.1 mg/mL and 1.0 mg/mL E. coli lipopolyssacharide, respectively.
934 12834622 Monoclonal antibodies (mabs) to CD80 and CD86 were employed to assess their costimulatory roles.
935 12834622 A decrease of stimulation as depicted by decreased T cell activation was significant with mabs to both CD80 and CD86 on monocyte-derived DCs while only mabs to CD86 induced decreased T cell activation by stem cell-derived DCs.
936 12834622 The varied functional role of CD80 and CD86 costimulatory molecules is associated with DC differentiation from distinct cord blood isolated hematopoietic lineages.
937 12834622 Costimulatory function of umbilical cord blood CD14+ and CD34+ derived dendritic cells.
938 12834622 Dendritic cells (DCs) consist of a heterogeneous population of hematopoietic cells characterized by their unique dendritic morphology, their efficient antigen-presenting capability to activate naive CD4(+) and CD8(+) T cells, and their lack of lineage specific markers.
939 12834622 CD14(+) monocytes and CD34(+) stem cells were isolated from human umbilical cord blood and were induced to differentiate into dendritic cells using 100 ng/mL granulocyte-macrophage colony stimulating factor (GM-CSF), 25 ng/mL IL-4, 2.5 ng/mL tumor necrosis factor-alpha (TNF-alpha), 100 ng/mL GM-CSF, 25 ng/mL stem cell factor, and 2.5 ng/mL TNF-alpha, respectively.
940 12834622 Flow cytometric analysis revealed that the 14-day-old dendritic cells were CD80(+), CD86(+), CD83(+), CD54(+), CD1a(+), CD11b(+), CD11c(+), HLA-DR(+), CD34(-), CD3(-), CD19(-), CD14(-), and CD16(-).
941 12834622 Reverse transcription polymerase chain reaction was employed to detect expression of mRNA for CD80 and CD86.
942 12834622 Differentiating monocytes initially expressed CD86 while CD80 appeared on day 2.
943 12834622 Differentiating stem cells expressed CD80 and CD86 on day 2 of culture.
944 12834622 The surface expression of CD80 and CD86 was studied over the course of differentiation.
945 12834622 Prior to the functional assay, CD14(+) and CD34(+) derived DCs were stimulated for 18 h with 0.1 mg/mL and 1.0 mg/mL E. coli lipopolyssacharide, respectively.
946 12834622 Monoclonal antibodies (mabs) to CD80 and CD86 were employed to assess their costimulatory roles.
947 12834622 A decrease of stimulation as depicted by decreased T cell activation was significant with mabs to both CD80 and CD86 on monocyte-derived DCs while only mabs to CD86 induced decreased T cell activation by stem cell-derived DCs.
948 12834622 The varied functional role of CD80 and CD86 costimulatory molecules is associated with DC differentiation from distinct cord blood isolated hematopoietic lineages.
949 12834622 Costimulatory function of umbilical cord blood CD14+ and CD34+ derived dendritic cells.
950 12834622 Dendritic cells (DCs) consist of a heterogeneous population of hematopoietic cells characterized by their unique dendritic morphology, their efficient antigen-presenting capability to activate naive CD4(+) and CD8(+) T cells, and their lack of lineage specific markers.
951 12834622 CD14(+) monocytes and CD34(+) stem cells were isolated from human umbilical cord blood and were induced to differentiate into dendritic cells using 100 ng/mL granulocyte-macrophage colony stimulating factor (GM-CSF), 25 ng/mL IL-4, 2.5 ng/mL tumor necrosis factor-alpha (TNF-alpha), 100 ng/mL GM-CSF, 25 ng/mL stem cell factor, and 2.5 ng/mL TNF-alpha, respectively.
952 12834622 Flow cytometric analysis revealed that the 14-day-old dendritic cells were CD80(+), CD86(+), CD83(+), CD54(+), CD1a(+), CD11b(+), CD11c(+), HLA-DR(+), CD34(-), CD3(-), CD19(-), CD14(-), and CD16(-).
953 12834622 Reverse transcription polymerase chain reaction was employed to detect expression of mRNA for CD80 and CD86.
954 12834622 Differentiating monocytes initially expressed CD86 while CD80 appeared on day 2.
955 12834622 Differentiating stem cells expressed CD80 and CD86 on day 2 of culture.
956 12834622 The surface expression of CD80 and CD86 was studied over the course of differentiation.
957 12834622 Prior to the functional assay, CD14(+) and CD34(+) derived DCs were stimulated for 18 h with 0.1 mg/mL and 1.0 mg/mL E. coli lipopolyssacharide, respectively.
958 12834622 Monoclonal antibodies (mabs) to CD80 and CD86 were employed to assess their costimulatory roles.
959 12834622 A decrease of stimulation as depicted by decreased T cell activation was significant with mabs to both CD80 and CD86 on monocyte-derived DCs while only mabs to CD86 induced decreased T cell activation by stem cell-derived DCs.
960 12834622 The varied functional role of CD80 and CD86 costimulatory molecules is associated with DC differentiation from distinct cord blood isolated hematopoietic lineages.
961 12850480 Pre-clinical evaluation of this approach in murine models has demonstrated efficient anti-leukemic responses with the expression of immunomodulators, in particular GM-CSF and CD80, in irradiated cell vaccines.
962 12850480 We have previously shown efficient insertion of GM-CSF and CD80 genes into primary human leukemia cells with the use of second and third generation self-inactivating (SIN) lentiviral vectors (Blood 96 (2000), 1317; Leukemia 16 (2002), 1645).
963 12850480 In this work, we evaluated the insertion of the central polypurine tract and the central termination sequence into a SIN lentiviral vector encoding for GM-CSF and CD80, which significantly enhanced the transduction efficiency of primary leukemia cells and provided higher levels of GM-CSF and CD80 co-expression.
964 12850480 We also demonstrate a methodology to deliver simultaneously a combination of immunomodulatory molecules (GM-CSF, CD80, IL-4, and CD40L) to activate different pathways of immune stimulation.
965 12850480 Pre-clinical evaluation of this approach in murine models has demonstrated efficient anti-leukemic responses with the expression of immunomodulators, in particular GM-CSF and CD80, in irradiated cell vaccines.
966 12850480 We have previously shown efficient insertion of GM-CSF and CD80 genes into primary human leukemia cells with the use of second and third generation self-inactivating (SIN) lentiviral vectors (Blood 96 (2000), 1317; Leukemia 16 (2002), 1645).
967 12850480 In this work, we evaluated the insertion of the central polypurine tract and the central termination sequence into a SIN lentiviral vector encoding for GM-CSF and CD80, which significantly enhanced the transduction efficiency of primary leukemia cells and provided higher levels of GM-CSF and CD80 co-expression.
968 12850480 We also demonstrate a methodology to deliver simultaneously a combination of immunomodulatory molecules (GM-CSF, CD80, IL-4, and CD40L) to activate different pathways of immune stimulation.
969 12850480 Pre-clinical evaluation of this approach in murine models has demonstrated efficient anti-leukemic responses with the expression of immunomodulators, in particular GM-CSF and CD80, in irradiated cell vaccines.
970 12850480 We have previously shown efficient insertion of GM-CSF and CD80 genes into primary human leukemia cells with the use of second and third generation self-inactivating (SIN) lentiviral vectors (Blood 96 (2000), 1317; Leukemia 16 (2002), 1645).
971 12850480 In this work, we evaluated the insertion of the central polypurine tract and the central termination sequence into a SIN lentiviral vector encoding for GM-CSF and CD80, which significantly enhanced the transduction efficiency of primary leukemia cells and provided higher levels of GM-CSF and CD80 co-expression.
972 12850480 We also demonstrate a methodology to deliver simultaneously a combination of immunomodulatory molecules (GM-CSF, CD80, IL-4, and CD40L) to activate different pathways of immune stimulation.
973 12850480 Pre-clinical evaluation of this approach in murine models has demonstrated efficient anti-leukemic responses with the expression of immunomodulators, in particular GM-CSF and CD80, in irradiated cell vaccines.
974 12850480 We have previously shown efficient insertion of GM-CSF and CD80 genes into primary human leukemia cells with the use of second and third generation self-inactivating (SIN) lentiviral vectors (Blood 96 (2000), 1317; Leukemia 16 (2002), 1645).
975 12850480 In this work, we evaluated the insertion of the central polypurine tract and the central termination sequence into a SIN lentiviral vector encoding for GM-CSF and CD80, which significantly enhanced the transduction efficiency of primary leukemia cells and provided higher levels of GM-CSF and CD80 co-expression.
976 12850480 We also demonstrate a methodology to deliver simultaneously a combination of immunomodulatory molecules (GM-CSF, CD80, IL-4, and CD40L) to activate different pathways of immune stimulation.
977 12862419 Reconstitution of CD40 and CD80 in dendritic cells generated from blasts of patients with acute myeloid leukemia.
978 12862419 DCs must express HLA class I/II molecules and the costimulatory molecules CD40, CD80 and CD86 to effectively activate T cells for the subsequent lysis of leukemic blasts.
979 12862419 The sustained mRNA expression of LAAs such as PRAME, RHAMM or WT-1 proved that the AML-DCs originated from AML blasts.
980 12862419 Compared with AML blasts, the expression of CD40, CD80, CD86 and HLA-DR was upregulated during DC culture to a median of 80-98% on AML-DCs.
981 12862419 Expression of CD40, CD80 and CD83 remained lower on AML-DCs than on HV-DCs.
982 12862419 Reconstitution of CD40 and CD80 in dendritic cells generated from blasts of patients with acute myeloid leukemia.
983 12862419 DCs must express HLA class I/II molecules and the costimulatory molecules CD40, CD80 and CD86 to effectively activate T cells for the subsequent lysis of leukemic blasts.
984 12862419 The sustained mRNA expression of LAAs such as PRAME, RHAMM or WT-1 proved that the AML-DCs originated from AML blasts.
985 12862419 Compared with AML blasts, the expression of CD40, CD80, CD86 and HLA-DR was upregulated during DC culture to a median of 80-98% on AML-DCs.
986 12862419 Expression of CD40, CD80 and CD83 remained lower on AML-DCs than on HV-DCs.
987 12862419 Reconstitution of CD40 and CD80 in dendritic cells generated from blasts of patients with acute myeloid leukemia.
988 12862419 DCs must express HLA class I/II molecules and the costimulatory molecules CD40, CD80 and CD86 to effectively activate T cells for the subsequent lysis of leukemic blasts.
989 12862419 The sustained mRNA expression of LAAs such as PRAME, RHAMM or WT-1 proved that the AML-DCs originated from AML blasts.
990 12862419 Compared with AML blasts, the expression of CD40, CD80, CD86 and HLA-DR was upregulated during DC culture to a median of 80-98% on AML-DCs.
991 12862419 Expression of CD40, CD80 and CD83 remained lower on AML-DCs than on HV-DCs.
992 12862419 Reconstitution of CD40 and CD80 in dendritic cells generated from blasts of patients with acute myeloid leukemia.
993 12862419 DCs must express HLA class I/II molecules and the costimulatory molecules CD40, CD80 and CD86 to effectively activate T cells for the subsequent lysis of leukemic blasts.
994 12862419 The sustained mRNA expression of LAAs such as PRAME, RHAMM or WT-1 proved that the AML-DCs originated from AML blasts.
995 12862419 Compared with AML blasts, the expression of CD40, CD80, CD86 and HLA-DR was upregulated during DC culture to a median of 80-98% on AML-DCs.
996 12862419 Expression of CD40, CD80 and CD83 remained lower on AML-DCs than on HV-DCs.
997 12885350 MDA-MB-231, an HLA-A2(+), HER2/neu(+) allogeneic breast cancer cell line genetically modified to express the costimulatory molecule CD80 (B7-1), was used to vaccinate 30 women with previously treated stage IV breast cancer.
998 12885350 Patients were vaccinated with 10(7) or 10(8) irradiated gene-modified tumor cells with granulocyte-macrophage colony-stimulating factor (GM-CSF) or BCG, three times at 2-week intervals and then monthly until progressive disease developed.
999 12885350 One patient maintained an increased number of circulating tumor-specific, interferon gamma-secreting CD8(+) T cells for 24 months after the last vaccination.
1000 12922111 Differential requirements for CTL generation by novel immunostimulants: APC tropism, use of the TAP-independent processing pathway, and dependency on CD80/CD86 costimulation.
1001 12922111 All three immunostimulants also elicited CD86-dependent TH1 cytokine responses.
1002 12933866 Maturation markers (i.e., CD80, CD86, major histocompatibility complex class II, and CD40) showed enhanced expression on DC incubated with targeted PorA liposomes relative to those incubated with nontargeted PorA liposomes.
1003 12946436 Retrovirus-transfected bone marrow cells cultured with GMCSF and IL-4 for 7 days demonstrated 70-80% of DCs with high CD11c, CD80, CD86, and MHC class I (I-Kd) expression.
1004 12946436 Immunization of DCs encoding SSP2 gene resulted in identification of two K(d) restricted CTL epitopes and induction of IFN-gamma-secreting cytolytic CD8+ T cells.
1005 14500478 Parent OM selectively up-regulated Toll-like receptor 4 (TLR4) mRNA expression and induced mo-DC maturation, as reflected by increased production of chemokines, proinflammatory cytokines, and CD83, CD80, CD86, CD40, and major histocompatibility complex (MHC) class II molecules.
1006 14500478 In contrast, LPS-deficient OM selectively up-regulated TLR2 mRNA expression and induced moderate increases in both cytokine production and expression of CD86 and MHC class II molecules.
1007 14504106 We first observed that neonatal pDCs displayed decreased up-regulation of CD80, CD83, CD86, and CD40, whereas HLA-DR and CD54 up-regulation did not differ significantly between adults and neonates.
1008 14530334 Enhanced effector and memory CTL responses generated by incorporation of receptor activator of NF-kappa B (RANK)/RANK ligand costimulatory molecules into dendritic cell immunogens expressing a human tumor-specific antigen.
1009 14530334 In this study, we used adenoviral vectors to express a model tumor Ag (the E7 oncoprotein of human papillomavirus 16) with or without coexpression of receptor activator of NF-kappaB (RANK)/RANK ligand (RANKL) or CD40/CD40L costimulatory molecules, and used these transgenic DCs to immunize mice for the generation of E7-directed CD8(+) T cell responses.
1010 14530334 We show that coexpression of RANK/RANKL, but not CD40/CD40L, in E7-expressing DCs augmented E7-specific IFN-gamma-secreting effector and memory T cells and E7-specific CTLs.
1011 14530334 These responses were also augmented by coexpression of T cell costimulatory molecules (RANKL and CD40L) or DC costimulatory molecules (RANK and CD40) in the E7-expressing DC immunogens.
1012 14530334 Augmentation of CTL responses correlated with up-regulation of CD80 and CD86 expression in DCs transduced with costimulatory molecules, suggesting a mechanism for enhanced T cell activation/survival.
1013 14530356 In both the influenza and HIV DNA immunization models, several groups have reported that coimmunization of mice with plasmids encoding immunogen and CD86, but not CD80, effectively boosts Ag-specific T cell activation.
1014 14530356 To examine this issue, we developed a series of chimeric CD80 and CD86 constructs as well as deletion mutants, and examined their immune activating potential in the DNA vaccine model.
1015 14530356 In both the influenza and HIV DNA immunization models, several groups have reported that coimmunization of mice with plasmids encoding immunogen and CD86, but not CD80, effectively boosts Ag-specific T cell activation.
1016 14530356 To examine this issue, we developed a series of chimeric CD80 and CD86 constructs as well as deletion mutants, and examined their immune activating potential in the DNA vaccine model.
1017 14556971 In this work, we examined if resistance of a protein to proteolytic processing affects the expression of costimulatory molecules, CD80 and CD86, on macrophage exposed to the same antigen.
1018 14556971 The murine peritoneal cavity macrophages expressed both CD80 and CD86 after 24 h of incubation with HlyA monomer but failed to express the costimulatory molecules when treated with the HlyA oligomer.
1019 14556971 The expression of CD80 molecule on macrophage after 48 h by the HlyA oligomer that failed to express the costimulatory molecules after 24 h indicates that proteolytic processing plays a decisive role in expression of CD80 and CD86 on cell surface.
1020 14556971 In this work, we examined if resistance of a protein to proteolytic processing affects the expression of costimulatory molecules, CD80 and CD86, on macrophage exposed to the same antigen.
1021 14556971 The murine peritoneal cavity macrophages expressed both CD80 and CD86 after 24 h of incubation with HlyA monomer but failed to express the costimulatory molecules when treated with the HlyA oligomer.
1022 14556971 The expression of CD80 molecule on macrophage after 48 h by the HlyA oligomer that failed to express the costimulatory molecules after 24 h indicates that proteolytic processing plays a decisive role in expression of CD80 and CD86 on cell surface.
1023 14556971 In this work, we examined if resistance of a protein to proteolytic processing affects the expression of costimulatory molecules, CD80 and CD86, on macrophage exposed to the same antigen.
1024 14556971 The murine peritoneal cavity macrophages expressed both CD80 and CD86 after 24 h of incubation with HlyA monomer but failed to express the costimulatory molecules when treated with the HlyA oligomer.
1025 14556971 The expression of CD80 molecule on macrophage after 48 h by the HlyA oligomer that failed to express the costimulatory molecules after 24 h indicates that proteolytic processing plays a decisive role in expression of CD80 and CD86 on cell surface.
1026 14577912 We performed a phase I/II clinical trial in metastatic melanoma patients with an ultraviolet (UV)-inactivated nonreplicating recombinant vaccinia virus enabling the expression, from a single construct, of endoplasmic reticulum-targeted HLA-A0201-restricted Melan-A/MART-1(27-35), gp100(280-288), and tyrosinase(1-9) epitopes, together with CD80 and CD86 costimulatory proteins.
1027 14577912 Corresponding soluble peptides were used to boost responses and granulocyte-macrophage colony-stimulating factor was used as systemic adjuvant.
1028 14578464 Mice transgenic for the HER-2/neu homologue, rat neu, were immunized with full-length rat neu cDNA given alone or in combination with plasmids encoding costimulatory molecules CD80 or CD86 and the ligand for CD137 (CD137L).
1029 14578464 Immunization with plasmids encoding the neu antigen along with plasmids encoding CD137L and either CD80 or CD86 resulted in the generation of neu-specific antibodies that induced phopshorylation of the neu tyrosine kinase and inhibited the growth of cultured tumor cells overexpressing neu.
1030 14578464 DNA vaccines encoding neu, when given in combination with both CD137L and either CD80 or CD86, can induce cellular and humoral immunity and result in an antitumor effect.
1031 14578464 Mice transgenic for the HER-2/neu homologue, rat neu, were immunized with full-length rat neu cDNA given alone or in combination with plasmids encoding costimulatory molecules CD80 or CD86 and the ligand for CD137 (CD137L).
1032 14578464 Immunization with plasmids encoding the neu antigen along with plasmids encoding CD137L and either CD80 or CD86 resulted in the generation of neu-specific antibodies that induced phopshorylation of the neu tyrosine kinase and inhibited the growth of cultured tumor cells overexpressing neu.
1033 14578464 DNA vaccines encoding neu, when given in combination with both CD137L and either CD80 or CD86, can induce cellular and humoral immunity and result in an antitumor effect.
1034 14578464 Mice transgenic for the HER-2/neu homologue, rat neu, were immunized with full-length rat neu cDNA given alone or in combination with plasmids encoding costimulatory molecules CD80 or CD86 and the ligand for CD137 (CD137L).
1035 14578464 Immunization with plasmids encoding the neu antigen along with plasmids encoding CD137L and either CD80 or CD86 resulted in the generation of neu-specific antibodies that induced phopshorylation of the neu tyrosine kinase and inhibited the growth of cultured tumor cells overexpressing neu.
1036 14578464 DNA vaccines encoding neu, when given in combination with both CD137L and either CD80 or CD86, can induce cellular and humoral immunity and result in an antitumor effect.
1037 14594508 Differentiation of CD14(+) cells into mature monocyte-derived DC was induced by incubation with IL-4, GM-CSF, TNF-alpha, PGE(2), IL-1 beta, and IL-6.
1038 14594508 Mature DC showed a high expression of CD83, HLA-DR, and the co-stimulatory molecules CD80 and CD86.
1039 14598882 One group of mice was vaccinated with an irradiated, 410.4 syngeneic mammary tumor cell line co-expressing human MUC1 and CD80 or CD86 co-stimulatory molecules, and a second group of mice was vaccinated with plasmids encoding MUC1 and CD80 or CD86.
1040 14598882 There were significant inhibition on rates of tumor growth and survival in mice vaccinated with irradiated 410.4/MUC1 cells co-expressing either CD80 or CD86 molecules, compared to non-vaccinated animals.
1041 14598882 In addition, there were also significant delays in the appearance of measurable tumors and their growth in mice vaccinated by gene-gun immunization with plasmids encoding MUC1 and CD80 or CD86.
1042 14598882 One group of mice was vaccinated with an irradiated, 410.4 syngeneic mammary tumor cell line co-expressing human MUC1 and CD80 or CD86 co-stimulatory molecules, and a second group of mice was vaccinated with plasmids encoding MUC1 and CD80 or CD86.
1043 14598882 There were significant inhibition on rates of tumor growth and survival in mice vaccinated with irradiated 410.4/MUC1 cells co-expressing either CD80 or CD86 molecules, compared to non-vaccinated animals.
1044 14598882 In addition, there were also significant delays in the appearance of measurable tumors and their growth in mice vaccinated by gene-gun immunization with plasmids encoding MUC1 and CD80 or CD86.
1045 14598882 One group of mice was vaccinated with an irradiated, 410.4 syngeneic mammary tumor cell line co-expressing human MUC1 and CD80 or CD86 co-stimulatory molecules, and a second group of mice was vaccinated with plasmids encoding MUC1 and CD80 or CD86.
1046 14598882 There were significant inhibition on rates of tumor growth and survival in mice vaccinated with irradiated 410.4/MUC1 cells co-expressing either CD80 or CD86 molecules, compared to non-vaccinated animals.
1047 14598882 In addition, there were also significant delays in the appearance of measurable tumors and their growth in mice vaccinated by gene-gun immunization with plasmids encoding MUC1 and CD80 or CD86.
1048 14605671 To determine whether CD8-mediated immune responses could be elicited in stage IIIB/IV NSCLC patients, 14 subjects were immunized several times with allogeneic NSCLC cells transfected with CD80 (B7.1) and HLA-A1 or A2.
1049 14611813 Function of CD80 and CD86 on monocyte- and stem cell-derived dendritic cells.
1050 14611813 Dendritic cells (DCs) consist of a heterogeneous population of hematopoietic cells characterized by their unique dendritic morphology, their efficient antigen-presenting capability to activate naïve CD4+ and CD8+ T cells, as well as their lack of lineage-specific markers.
1051 14611813 Human umbilical cord blood CD14+ monocytes and CD34+ stem cells were induced to differentiate into dendritic cells using 100 ng/mL granulocyte-macrophage colony-stimulating factor (GM-CSF), 25 ng/mL interleukin (II)-4, 2.5 ng/mL tumor necrosis factor alpha (TNF-alpha) and 100 ng/mL GM-CSF, 25 ng/mL stem cell factor, and 2.5 ng/mL TNF-alpha, respectively.
1052 14611813 Differentiated dendritic cells were CD80+, CD86+, CD83+, CD54+, CD1a+, CD11b+, CD11c+, HLA-DR+, CD34-, CD3-, CD19-, CD14-, and CD16-.
1053 14611813 Reverse transcription polymerase chain reaction revealed that differentiating monocytes initially expressed CD86 mRNA while CD80 mRNA appeared on Day 2.
1054 14611813 Differentiating stem cells expressed both CD80 and CD86 mRNA on Day 2 of culture.
1055 14611813 Monoclonal antibodies (mabs) to CD80 and CD86 were employed to assess their costimulatory roles.
1056 14611813 CD14 and CD34 derived DCs prior to the functional assay were stimulated for 18 h with 0.1 and 1.0 mg/mL Escherichia coli lipopolyssacharide, respectively.
1057 14611813 A decrease in stimulation as depicted by decreased T-cell activation was significant with mabs to both CD80 and CD86 on monocyte-derived DCs while only mabs to CD86 induced decreased T-cell activation by stem cell-derived DCs.
1058 14611813 The varied functional role of CD80 and CD86 costimulatory molecules is associated with DC differentiation from distinct cord blood-isolated hematopoietic lineages.
1059 14611813 Function of CD80 and CD86 on monocyte- and stem cell-derived dendritic cells.
1060 14611813 Dendritic cells (DCs) consist of a heterogeneous population of hematopoietic cells characterized by their unique dendritic morphology, their efficient antigen-presenting capability to activate naïve CD4+ and CD8+ T cells, as well as their lack of lineage-specific markers.
1061 14611813 Human umbilical cord blood CD14+ monocytes and CD34+ stem cells were induced to differentiate into dendritic cells using 100 ng/mL granulocyte-macrophage colony-stimulating factor (GM-CSF), 25 ng/mL interleukin (II)-4, 2.5 ng/mL tumor necrosis factor alpha (TNF-alpha) and 100 ng/mL GM-CSF, 25 ng/mL stem cell factor, and 2.5 ng/mL TNF-alpha, respectively.
1062 14611813 Differentiated dendritic cells were CD80+, CD86+, CD83+, CD54+, CD1a+, CD11b+, CD11c+, HLA-DR+, CD34-, CD3-, CD19-, CD14-, and CD16-.
1063 14611813 Reverse transcription polymerase chain reaction revealed that differentiating monocytes initially expressed CD86 mRNA while CD80 mRNA appeared on Day 2.
1064 14611813 Differentiating stem cells expressed both CD80 and CD86 mRNA on Day 2 of culture.
1065 14611813 Monoclonal antibodies (mabs) to CD80 and CD86 were employed to assess their costimulatory roles.
1066 14611813 CD14 and CD34 derived DCs prior to the functional assay were stimulated for 18 h with 0.1 and 1.0 mg/mL Escherichia coli lipopolyssacharide, respectively.
1067 14611813 A decrease in stimulation as depicted by decreased T-cell activation was significant with mabs to both CD80 and CD86 on monocyte-derived DCs while only mabs to CD86 induced decreased T-cell activation by stem cell-derived DCs.
1068 14611813 The varied functional role of CD80 and CD86 costimulatory molecules is associated with DC differentiation from distinct cord blood-isolated hematopoietic lineages.
1069 14611813 Function of CD80 and CD86 on monocyte- and stem cell-derived dendritic cells.
1070 14611813 Dendritic cells (DCs) consist of a heterogeneous population of hematopoietic cells characterized by their unique dendritic morphology, their efficient antigen-presenting capability to activate naïve CD4+ and CD8+ T cells, as well as their lack of lineage-specific markers.
1071 14611813 Human umbilical cord blood CD14+ monocytes and CD34+ stem cells were induced to differentiate into dendritic cells using 100 ng/mL granulocyte-macrophage colony-stimulating factor (GM-CSF), 25 ng/mL interleukin (II)-4, 2.5 ng/mL tumor necrosis factor alpha (TNF-alpha) and 100 ng/mL GM-CSF, 25 ng/mL stem cell factor, and 2.5 ng/mL TNF-alpha, respectively.
1072 14611813 Differentiated dendritic cells were CD80+, CD86+, CD83+, CD54+, CD1a+, CD11b+, CD11c+, HLA-DR+, CD34-, CD3-, CD19-, CD14-, and CD16-.
1073 14611813 Reverse transcription polymerase chain reaction revealed that differentiating monocytes initially expressed CD86 mRNA while CD80 mRNA appeared on Day 2.
1074 14611813 Differentiating stem cells expressed both CD80 and CD86 mRNA on Day 2 of culture.
1075 14611813 Monoclonal antibodies (mabs) to CD80 and CD86 were employed to assess their costimulatory roles.
1076 14611813 CD14 and CD34 derived DCs prior to the functional assay were stimulated for 18 h with 0.1 and 1.0 mg/mL Escherichia coli lipopolyssacharide, respectively.
1077 14611813 A decrease in stimulation as depicted by decreased T-cell activation was significant with mabs to both CD80 and CD86 on monocyte-derived DCs while only mabs to CD86 induced decreased T-cell activation by stem cell-derived DCs.
1078 14611813 The varied functional role of CD80 and CD86 costimulatory molecules is associated with DC differentiation from distinct cord blood-isolated hematopoietic lineages.
1079 14611813 Function of CD80 and CD86 on monocyte- and stem cell-derived dendritic cells.
1080 14611813 Dendritic cells (DCs) consist of a heterogeneous population of hematopoietic cells characterized by their unique dendritic morphology, their efficient antigen-presenting capability to activate naïve CD4+ and CD8+ T cells, as well as their lack of lineage-specific markers.
1081 14611813 Human umbilical cord blood CD14+ monocytes and CD34+ stem cells were induced to differentiate into dendritic cells using 100 ng/mL granulocyte-macrophage colony-stimulating factor (GM-CSF), 25 ng/mL interleukin (II)-4, 2.5 ng/mL tumor necrosis factor alpha (TNF-alpha) and 100 ng/mL GM-CSF, 25 ng/mL stem cell factor, and 2.5 ng/mL TNF-alpha, respectively.
1082 14611813 Differentiated dendritic cells were CD80+, CD86+, CD83+, CD54+, CD1a+, CD11b+, CD11c+, HLA-DR+, CD34-, CD3-, CD19-, CD14-, and CD16-.
1083 14611813 Reverse transcription polymerase chain reaction revealed that differentiating monocytes initially expressed CD86 mRNA while CD80 mRNA appeared on Day 2.
1084 14611813 Differentiating stem cells expressed both CD80 and CD86 mRNA on Day 2 of culture.
1085 14611813 Monoclonal antibodies (mabs) to CD80 and CD86 were employed to assess their costimulatory roles.
1086 14611813 CD14 and CD34 derived DCs prior to the functional assay were stimulated for 18 h with 0.1 and 1.0 mg/mL Escherichia coli lipopolyssacharide, respectively.
1087 14611813 A decrease in stimulation as depicted by decreased T-cell activation was significant with mabs to both CD80 and CD86 on monocyte-derived DCs while only mabs to CD86 induced decreased T-cell activation by stem cell-derived DCs.
1088 14611813 The varied functional role of CD80 and CD86 costimulatory molecules is associated with DC differentiation from distinct cord blood-isolated hematopoietic lineages.
1089 14611813 Function of CD80 and CD86 on monocyte- and stem cell-derived dendritic cells.
1090 14611813 Dendritic cells (DCs) consist of a heterogeneous population of hematopoietic cells characterized by their unique dendritic morphology, their efficient antigen-presenting capability to activate naïve CD4+ and CD8+ T cells, as well as their lack of lineage-specific markers.
1091 14611813 Human umbilical cord blood CD14+ monocytes and CD34+ stem cells were induced to differentiate into dendritic cells using 100 ng/mL granulocyte-macrophage colony-stimulating factor (GM-CSF), 25 ng/mL interleukin (II)-4, 2.5 ng/mL tumor necrosis factor alpha (TNF-alpha) and 100 ng/mL GM-CSF, 25 ng/mL stem cell factor, and 2.5 ng/mL TNF-alpha, respectively.
1092 14611813 Differentiated dendritic cells were CD80+, CD86+, CD83+, CD54+, CD1a+, CD11b+, CD11c+, HLA-DR+, CD34-, CD3-, CD19-, CD14-, and CD16-.
1093 14611813 Reverse transcription polymerase chain reaction revealed that differentiating monocytes initially expressed CD86 mRNA while CD80 mRNA appeared on Day 2.
1094 14611813 Differentiating stem cells expressed both CD80 and CD86 mRNA on Day 2 of culture.
1095 14611813 Monoclonal antibodies (mabs) to CD80 and CD86 were employed to assess their costimulatory roles.
1096 14611813 CD14 and CD34 derived DCs prior to the functional assay were stimulated for 18 h with 0.1 and 1.0 mg/mL Escherichia coli lipopolyssacharide, respectively.
1097 14611813 A decrease in stimulation as depicted by decreased T-cell activation was significant with mabs to both CD80 and CD86 on monocyte-derived DCs while only mabs to CD86 induced decreased T-cell activation by stem cell-derived DCs.
1098 14611813 The varied functional role of CD80 and CD86 costimulatory molecules is associated with DC differentiation from distinct cord blood-isolated hematopoietic lineages.
1099 14611813 Function of CD80 and CD86 on monocyte- and stem cell-derived dendritic cells.
1100 14611813 Dendritic cells (DCs) consist of a heterogeneous population of hematopoietic cells characterized by their unique dendritic morphology, their efficient antigen-presenting capability to activate naïve CD4+ and CD8+ T cells, as well as their lack of lineage-specific markers.
1101 14611813 Human umbilical cord blood CD14+ monocytes and CD34+ stem cells were induced to differentiate into dendritic cells using 100 ng/mL granulocyte-macrophage colony-stimulating factor (GM-CSF), 25 ng/mL interleukin (II)-4, 2.5 ng/mL tumor necrosis factor alpha (TNF-alpha) and 100 ng/mL GM-CSF, 25 ng/mL stem cell factor, and 2.5 ng/mL TNF-alpha, respectively.
1102 14611813 Differentiated dendritic cells were CD80+, CD86+, CD83+, CD54+, CD1a+, CD11b+, CD11c+, HLA-DR+, CD34-, CD3-, CD19-, CD14-, and CD16-.
1103 14611813 Reverse transcription polymerase chain reaction revealed that differentiating monocytes initially expressed CD86 mRNA while CD80 mRNA appeared on Day 2.
1104 14611813 Differentiating stem cells expressed both CD80 and CD86 mRNA on Day 2 of culture.
1105 14611813 Monoclonal antibodies (mabs) to CD80 and CD86 were employed to assess their costimulatory roles.
1106 14611813 CD14 and CD34 derived DCs prior to the functional assay were stimulated for 18 h with 0.1 and 1.0 mg/mL Escherichia coli lipopolyssacharide, respectively.
1107 14611813 A decrease in stimulation as depicted by decreased T-cell activation was significant with mabs to both CD80 and CD86 on monocyte-derived DCs while only mabs to CD86 induced decreased T-cell activation by stem cell-derived DCs.
1108 14611813 The varied functional role of CD80 and CD86 costimulatory molecules is associated with DC differentiation from distinct cord blood-isolated hematopoietic lineages.
1109 14611813 Function of CD80 and CD86 on monocyte- and stem cell-derived dendritic cells.
1110 14611813 Dendritic cells (DCs) consist of a heterogeneous population of hematopoietic cells characterized by their unique dendritic morphology, their efficient antigen-presenting capability to activate naïve CD4+ and CD8+ T cells, as well as their lack of lineage-specific markers.
1111 14611813 Human umbilical cord blood CD14+ monocytes and CD34+ stem cells were induced to differentiate into dendritic cells using 100 ng/mL granulocyte-macrophage colony-stimulating factor (GM-CSF), 25 ng/mL interleukin (II)-4, 2.5 ng/mL tumor necrosis factor alpha (TNF-alpha) and 100 ng/mL GM-CSF, 25 ng/mL stem cell factor, and 2.5 ng/mL TNF-alpha, respectively.
1112 14611813 Differentiated dendritic cells were CD80+, CD86+, CD83+, CD54+, CD1a+, CD11b+, CD11c+, HLA-DR+, CD34-, CD3-, CD19-, CD14-, and CD16-.
1113 14611813 Reverse transcription polymerase chain reaction revealed that differentiating monocytes initially expressed CD86 mRNA while CD80 mRNA appeared on Day 2.
1114 14611813 Differentiating stem cells expressed both CD80 and CD86 mRNA on Day 2 of culture.
1115 14611813 Monoclonal antibodies (mabs) to CD80 and CD86 were employed to assess their costimulatory roles.
1116 14611813 CD14 and CD34 derived DCs prior to the functional assay were stimulated for 18 h with 0.1 and 1.0 mg/mL Escherichia coli lipopolyssacharide, respectively.
1117 14611813 A decrease in stimulation as depicted by decreased T-cell activation was significant with mabs to both CD80 and CD86 on monocyte-derived DCs while only mabs to CD86 induced decreased T-cell activation by stem cell-derived DCs.
1118 14611813 The varied functional role of CD80 and CD86 costimulatory molecules is associated with DC differentiation from distinct cord blood-isolated hematopoietic lineages.
1119 14627128 Immature monocyte-derived dendritic cells (imMo-DCs) isolated from human peripheral blood monocytes stimulated with granulocyte-macrophage colony stimulating factor and interleukin-4 were exposed to maturation factors, i.e., lipopolysaccharide (LPS), tumor necrosis factor alpha (TNF-alpha) plus prostaglandin E2 (PGE2), and OK-432 for 2 days.
1120 14627128 OK-432 increased expression of activation- and maturation-related molecules such as HLA-DR, CD80, CD83, and CD86 in imMo-DCs at levels similar to that of TNF-alpha plus PGE2, and higher than that of LPS.
1121 14627128 Only OK-432 caused significant production of interleukin-12 (IL-12) p70 and interferon gamma (IFN-gamma) at both the mRNA and protein levels in imMo-DCs.
1122 14627128 Neutralizing antibody against IL-12 p70 blocked IFN-gamma secretion from OK-432-stimulated Mo-DCs.
1123 14627128 IL-12 p70 produced by OK-432-stimulated imMo-DCs induced secretion of IFN-gamma by CD4+ T cells.
1124 14627128 Both secretion of IL-12 p70 and IFN-gamma and activation of NF-kappaB induced by OK-432 were suppressed when imMo-DCs were pretreated with cytochalasin B.
1125 14627128 These results indicate that uptake of OK-432 by imMo-DCs is an early critical event for IL-12 p70 production and that NF-kappaB activation induced by OK-432 also contributes partially to IL-12 p70 production.
1126 14629630 Peripheral blood mononuclear cells (PBMCs) obtained by leukapheresis were enriched for monocytes by immunomagnetic depletion of CD19+ B cells and CD2+ T cells employing the ISOLEX 300i device.
1127 14629630 After 5 days of culture of enriched monocytes in gas permeable Teflon bags, using serum-free medium supplemented with granulocyte/macrophage-colony stimulating factor and interleukin-4 (IL-4), immature DCs were generated.
1128 14629630 The generated matured transfected DCs show high expression of the antigens CD83, CD80, CD86 and human leucocyte antigen-DR.
1129 14634094 Protection depended on the presence of costimulatory molecules CD80, CD86, and CD40 on the DCs, but surprisingly did not require DCs that could make IL-12 or IL-15.
1130 14634094 As NK cells lack memory, we found by depletion that CD4(+) not CD8(+) T cells were required for induction of the NK antitumor response.
1131 14673108 Herein, we report that Ebola VLPs (eVLPs) were immunogenic in vitro as eVLPs matured and activated mouse bone marrow-derived dendritic cells, assessed by increases in cell-surface markers CD40, CD80, CD86, and MHC class I and II and secretion of IL-6, IL-10, macrophage inflammatory protein (MIP)-1alpha, and tumor necrosis factor alpha by the dendritic cells.
1132 14673108 Further, vaccinating mice with eVLPs activated CD4+ and CD8+ T cells, as well as CD19+ B cells.
1133 14692533 Studies were therefore conducted with murine myeloma BM1 cells expressing Flt3L (membrane bound or soluble forms) or GM-CSF and the IL-12 x CD80 combination.
1134 14692533 All gene-modified BM1 cells, except BM1/IL-12 x CD80, developed tumors when subcutaneously injected into BALB/c mice.
1135 14692533 As prophylactic tumor vaccines, the combined use of gene-modified BM1/sFlt3L+GM-CSF+IL-12 x CD80 was most effective, providing 100% protection against subsequent parental BM1 tumor challenge.
1136 14692533 Notably, IL-12 x CD80 coexpressing BM1 cell vaccines were the most effective therapeutic vaccine in a minimal disease model.
1137 14692533 Studies were therefore conducted with murine myeloma BM1 cells expressing Flt3L (membrane bound or soluble forms) or GM-CSF and the IL-12 x CD80 combination.
1138 14692533 All gene-modified BM1 cells, except BM1/IL-12 x CD80, developed tumors when subcutaneously injected into BALB/c mice.
1139 14692533 As prophylactic tumor vaccines, the combined use of gene-modified BM1/sFlt3L+GM-CSF+IL-12 x CD80 was most effective, providing 100% protection against subsequent parental BM1 tumor challenge.
1140 14692533 Notably, IL-12 x CD80 coexpressing BM1 cell vaccines were the most effective therapeutic vaccine in a minimal disease model.
1141 14692533 Studies were therefore conducted with murine myeloma BM1 cells expressing Flt3L (membrane bound or soluble forms) or GM-CSF and the IL-12 x CD80 combination.
1142 14692533 All gene-modified BM1 cells, except BM1/IL-12 x CD80, developed tumors when subcutaneously injected into BALB/c mice.
1143 14692533 As prophylactic tumor vaccines, the combined use of gene-modified BM1/sFlt3L+GM-CSF+IL-12 x CD80 was most effective, providing 100% protection against subsequent parental BM1 tumor challenge.
1144 14692533 Notably, IL-12 x CD80 coexpressing BM1 cell vaccines were the most effective therapeutic vaccine in a minimal disease model.
1145 14692533 Studies were therefore conducted with murine myeloma BM1 cells expressing Flt3L (membrane bound or soluble forms) or GM-CSF and the IL-12 x CD80 combination.
1146 14692533 All gene-modified BM1 cells, except BM1/IL-12 x CD80, developed tumors when subcutaneously injected into BALB/c mice.
1147 14692533 As prophylactic tumor vaccines, the combined use of gene-modified BM1/sFlt3L+GM-CSF+IL-12 x CD80 was most effective, providing 100% protection against subsequent parental BM1 tumor challenge.
1148 14692533 Notably, IL-12 x CD80 coexpressing BM1 cell vaccines were the most effective therapeutic vaccine in a minimal disease model.
1149 14696096 Improved immunogenicity of a self tumor antigen by covalent linkage to CD40 ligand.
1150 14696096 The interaction between the CD40 ligand (CD40L) and CD40 on antigen-presenting cells (APCs) is critical in promoting humoral and cellular immune responses.
1151 14696096 The soluble Id-CD40L fusion protein retained CD40 binding activity and stimulated CD80 and CD86 upregulation and interleukin (IL)-12 production by macrophages.
1152 14730400 MHC class II and CD80 tumor cell-based vaccines are potent activators of type 1 CD4+ T lymphocytes provided they do not coexpress invariant chain.
1153 14730400 MHC class II(+)CD80+ vaccine cells were transfected with hen eggwhite lysozyme targeted to the cytosol, nuclei, mitochondria, or endoplasmic reticulum, and used as antigen-presenting cells to activate I-Ak-restricted, lysozyme-specific CD4+ 3A9 transgenic T cells.
1154 14730400 Regardless of the cellular location of lysozyme, the vaccines stimulated release of high levels of IFN-gamma and IL-2.
1155 14730400 If the vaccines coexpressed the MHC class II accessory molecule invariant chain, then IFN-gamma and IL-2 release was significantly reduced.
1156 14730400 These studies demonstrate that in the absence of invariant chain the MHC class II and CD80 tumor cell vaccines (1) function as antigen-presenting cells to activate naïve, tumor-specific CD4+ cells to endogenously synthesized tumor antigens; (2) polarize the activated CD4+ T cells toward a type 1 response; and (3) present epitopes derived from varied subcellular locales.
1157 14730400 MHC class II and CD80 tumor cell-based vaccines are potent activators of type 1 CD4+ T lymphocytes provided they do not coexpress invariant chain.
1158 14730400 MHC class II(+)CD80+ vaccine cells were transfected with hen eggwhite lysozyme targeted to the cytosol, nuclei, mitochondria, or endoplasmic reticulum, and used as antigen-presenting cells to activate I-Ak-restricted, lysozyme-specific CD4+ 3A9 transgenic T cells.
1159 14730400 Regardless of the cellular location of lysozyme, the vaccines stimulated release of high levels of IFN-gamma and IL-2.
1160 14730400 If the vaccines coexpressed the MHC class II accessory molecule invariant chain, then IFN-gamma and IL-2 release was significantly reduced.
1161 14730400 These studies demonstrate that in the absence of invariant chain the MHC class II and CD80 tumor cell vaccines (1) function as antigen-presenting cells to activate naïve, tumor-specific CD4+ cells to endogenously synthesized tumor antigens; (2) polarize the activated CD4+ T cells toward a type 1 response; and (3) present epitopes derived from varied subcellular locales.
1162 14730400 MHC class II and CD80 tumor cell-based vaccines are potent activators of type 1 CD4+ T lymphocytes provided they do not coexpress invariant chain.
1163 14730400 MHC class II(+)CD80+ vaccine cells were transfected with hen eggwhite lysozyme targeted to the cytosol, nuclei, mitochondria, or endoplasmic reticulum, and used as antigen-presenting cells to activate I-Ak-restricted, lysozyme-specific CD4+ 3A9 transgenic T cells.
1164 14730400 Regardless of the cellular location of lysozyme, the vaccines stimulated release of high levels of IFN-gamma and IL-2.
1165 14730400 If the vaccines coexpressed the MHC class II accessory molecule invariant chain, then IFN-gamma and IL-2 release was significantly reduced.
1166 14730400 These studies demonstrate that in the absence of invariant chain the MHC class II and CD80 tumor cell vaccines (1) function as antigen-presenting cells to activate naïve, tumor-specific CD4+ cells to endogenously synthesized tumor antigens; (2) polarize the activated CD4+ T cells toward a type 1 response; and (3) present epitopes derived from varied subcellular locales.
1167 14744795 BCG-CWS was capable of activating DCs ex vivo by the criteria of CD80/CD86 up-regulation and cytokine (interleukin-12, tumor necrosis factor-alpha) induction.
1168 14971031 Dendritic cells generated in the presence of GM-CSF plus IL-15 prime potent CD8+ Tc1 responses in vivo.
1169 14971031 DC progenitors can be stimulated to differentiate into immature DC by various growth factors, including GM-CSF and IL-4.
1170 14971031 Here we show that IL-15, in combination with GM-CSF, is a growth factor for murine DC.
1171 14971031 Murine bone marrow cells, depleted of T cells, B cells, I-A+ cells and Gr-1+ granulocytes, and cultured in the presence of GM-CSF plus IL-15 (IL-15 DC), yielded DC expressing high levels of CD11c and MHC class II molecules, as well as CD11b.
1172 14971031 These cells expressed significant levels of CD40, CD80 and CD86, and could stimulate allogeneic CD4+ T cells efficiently.
1173 14971031 Interestingly, IL-15 DC were far superior to DC generated with GM-CSF plus IL-4 in stimulating allogeneic CD8+ T cells in vitro.
1174 14971031 Consistent with this, IL-15 DC induced much more potent antigen-specific CD8+ T cell responses with high levels of Th1 cytokines in vivo, compared to DC generated with GM-CSF plus IL-4, or with GM-CSF plus TGF-beta, or with GM-CSF alone.
1175 14971031 Together, these data suggest that IL-15 promotes the development of DC, which induce potent Th1 and Tc1 responses in vivo.
1176 14984494 Retroviral transduction of acute myeloid leukaemia-derived dendritic cells with OX40 ligand augments their antigen presenting activity.
1177 14984494 In the present study, we examined whether the transduction of leukaemia-DCs with OX40 ligand (OX40L), a member of the tumour necrosis factor (TNF) family, resulted in augmentation of their antigen presenting activity.
1178 14984494 Fresh leukaemic cells from five patients with acute myeloid leukaemia (AML) were isolated and retrovirally transduced with OX40L during the culture with a combination of cytokines from stem cell factor, fms-like tyrosine kinase (Flt)-3 ligand, granulocyte-macrophage colony stimulating factor (GM-CSF), interleukin-4 (IL-4) and TNF-alpha.
1179 14984494 After 7 d, the majority of cells showed DC-like morphology, and expressed higher levels of CD80, CD86 and HLA-DR than fresh leukaemic cells.
1180 14984494 Co-culture of allogeneic CD4+ T cells with OX40L-transduced leukaemia-DCs was superior in the generation of interferon (IFN)-gamma producing CD4+ T cells and in production of IFN-gamma.
1181 14991620 In vitro stimulation of immature murine DC with MALP-2 resulted in the induction of maturation with up-regulated expression of MHC class II, costimulatory (CD80, CD86) and adhesion (CD40, CD54) molecules.
1182 14991620 MALP-2 also enhances the secretion of cytokines (IL-1alpha, IL-6 and IL-12), and increases DC stimulatory activity on naive and antigen-specific T cells.
1183 14991620 Further studies demonstrated that MALP-2 treatment of DC results in a dose-dependent shift from the protein pattern of proteasomes to immunoproteasomes (up-regulation of LMP2, LMP7 and MECL1), which correlates with an increased proteolytic activity.
1184 14996751 We demonstrated previously that the vaccine cells present tumor peptides via the endogenous antigen presentation pathway to activate CD4(+) and CD8(+) T cells.
1185 14996751 To obtain MHC class II(+)CD80(+)Ii(-) human tumor cells, we developed retroviruses encoding HLA-DR and CD80.
1186 14996751 SUM159PT mammary carcinoma and Mel 202 ocular melanoma cells transduced with the retroviruses DRB1/CD80 express high levels of DRB0101 and CD80 on the cell surface in the absence of Ii.
1187 14996751 Irradiated SUM159PT/DR1/CD80 vaccines stimulate proliferation of non-HLA-DRB0101 peripheral blood mononuclear cells and present an exogenous DR1-restricted tetanus toxoid (TT) peptide, indicating that the transduced DRB0101 is functional.
1188 14996751 SUM159PT/DR1/CD80 vaccines were further transduced with a retrovirus encoding the TT fragment C gene, as a model tumor antigen.
1189 14996751 Depletion and antibody blocking experiments confirm that MHC class II-restricted, endogenously synthesized epitopes are presented to CD4(+) T cells.
1190 14996751 Therefore, the MHC class II vaccines are efficient antigen-presenting cells that activate tumor-specific MHC class II-restricted, CD4(+) T lymphocytes, and they are a novel and potential immunotherapeutic for metastatic cancers.
1191 14996751 We demonstrated previously that the vaccine cells present tumor peptides via the endogenous antigen presentation pathway to activate CD4(+) and CD8(+) T cells.
1192 14996751 To obtain MHC class II(+)CD80(+)Ii(-) human tumor cells, we developed retroviruses encoding HLA-DR and CD80.
1193 14996751 SUM159PT mammary carcinoma and Mel 202 ocular melanoma cells transduced with the retroviruses DRB1/CD80 express high levels of DRB0101 and CD80 on the cell surface in the absence of Ii.
1194 14996751 Irradiated SUM159PT/DR1/CD80 vaccines stimulate proliferation of non-HLA-DRB0101 peripheral blood mononuclear cells and present an exogenous DR1-restricted tetanus toxoid (TT) peptide, indicating that the transduced DRB0101 is functional.
1195 14996751 SUM159PT/DR1/CD80 vaccines were further transduced with a retrovirus encoding the TT fragment C gene, as a model tumor antigen.
1196 14996751 Depletion and antibody blocking experiments confirm that MHC class II-restricted, endogenously synthesized epitopes are presented to CD4(+) T cells.
1197 14996751 Therefore, the MHC class II vaccines are efficient antigen-presenting cells that activate tumor-specific MHC class II-restricted, CD4(+) T lymphocytes, and they are a novel and potential immunotherapeutic for metastatic cancers.
1198 14996751 We demonstrated previously that the vaccine cells present tumor peptides via the endogenous antigen presentation pathway to activate CD4(+) and CD8(+) T cells.
1199 14996751 To obtain MHC class II(+)CD80(+)Ii(-) human tumor cells, we developed retroviruses encoding HLA-DR and CD80.
1200 14996751 SUM159PT mammary carcinoma and Mel 202 ocular melanoma cells transduced with the retroviruses DRB1/CD80 express high levels of DRB0101 and CD80 on the cell surface in the absence of Ii.
1201 14996751 Irradiated SUM159PT/DR1/CD80 vaccines stimulate proliferation of non-HLA-DRB0101 peripheral blood mononuclear cells and present an exogenous DR1-restricted tetanus toxoid (TT) peptide, indicating that the transduced DRB0101 is functional.
1202 14996751 SUM159PT/DR1/CD80 vaccines were further transduced with a retrovirus encoding the TT fragment C gene, as a model tumor antigen.
1203 14996751 Depletion and antibody blocking experiments confirm that MHC class II-restricted, endogenously synthesized epitopes are presented to CD4(+) T cells.
1204 14996751 Therefore, the MHC class II vaccines are efficient antigen-presenting cells that activate tumor-specific MHC class II-restricted, CD4(+) T lymphocytes, and they are a novel and potential immunotherapeutic for metastatic cancers.
1205 14996751 We demonstrated previously that the vaccine cells present tumor peptides via the endogenous antigen presentation pathway to activate CD4(+) and CD8(+) T cells.
1206 14996751 To obtain MHC class II(+)CD80(+)Ii(-) human tumor cells, we developed retroviruses encoding HLA-DR and CD80.
1207 14996751 SUM159PT mammary carcinoma and Mel 202 ocular melanoma cells transduced with the retroviruses DRB1/CD80 express high levels of DRB0101 and CD80 on the cell surface in the absence of Ii.
1208 14996751 Irradiated SUM159PT/DR1/CD80 vaccines stimulate proliferation of non-HLA-DRB0101 peripheral blood mononuclear cells and present an exogenous DR1-restricted tetanus toxoid (TT) peptide, indicating that the transduced DRB0101 is functional.
1209 14996751 SUM159PT/DR1/CD80 vaccines were further transduced with a retrovirus encoding the TT fragment C gene, as a model tumor antigen.
1210 14996751 Depletion and antibody blocking experiments confirm that MHC class II-restricted, endogenously synthesized epitopes are presented to CD4(+) T cells.
1211 14996751 Therefore, the MHC class II vaccines are efficient antigen-presenting cells that activate tumor-specific MHC class II-restricted, CD4(+) T lymphocytes, and they are a novel and potential immunotherapeutic for metastatic cancers.
1212 14999431 The vaccine used mature DCs (CD1a+++, CD40++, CD80++, CD83+, and CD86+++) generated from peripheral blood monocytes in the presence of GM-CSF and IL-4.
1213 14999431 After 7 days, DCs were matured with a defined cocktail of cytokines (IL-1+IL-6+TNF-alpha+PGE2) and simultaneously pulsed with lysates of heterologous melanoma cell lines, for 2 days.
1214 15004163 Nasal Flt3 ligand cDNA elicits CD11c+CD8+ dendritic cells for enhanced mucosal immunity.
1215 15004163 In addition, significant levels of OVA-specific CD4+ T cell proliferative responses and OVA-induced IL-4 and IL-2 production were noted in spleen and cervical lymph nodes.
1216 15004163 Further, marked increases in FL protein occurred in the nasal lamina propria and submandibular glands and the frequencies of CD11c+CD8+ dendritic cells (DCs) significantly increased in the mucosal tissues.
1217 15004163 Moreover, these DCs expressed high levels of CD40, CD80, CD86, and MHC class II molecules.
1218 15011756 According to the research group of Shortman, experimental results suggest a "dual" DC differentiation model, demonstrating the existence of both myeloid-derived (with characteristic IF: CD11b+, CD11c+, CD8alpha- and DEC205+) and lymphoid-derived DCs (showing CD11b- CD11c-, CD8alpha+ and DEC205+ IF).
1219 15011756 Most of the DCs express immunocytochemically detectable antigens like: S-100, CD1a, CD40 receptor, adhesion molecules (ICAM-1 or CD54, LFA-1 and LFA-3), integrins (CD11a, CD11c and CD18), CD45, CD54, co-stimulatory molecules (B7-1 or CD80, B7-2 or CD86), F418, MHC class I and II and DEC-205, multilectin receptor, immunostimulatory cytokine (IL-12) and, of course, Fc and complement receptors.
1220 15019294 CD14-positive cells cultured in the presence of PSK significantly increased the expression of HLA class II antigen and CD40; significantly increased the number and expression of CD80-, CD86- and CD83-positive cells; decreased Fluorescein isothiocyanate (FITC)-dextran uptake, augmented IL-12 production; augmented the allogeneic mixed lymphocyte reaction; and induced antigen-specific cytotoxicity.
1221 15075365 Flt3L-mobilized DCs exhibited slightly increased CD80/CD86 expression but typically still that of immature DCs and were resilient to freeze-thawing.
1222 15075365 Overnight culture activated the cells, up-regulating CD80/CD86 expression as well as interleukin-12 release, typically being boosted by CD40L.
1223 15075365 Flt3L-mobilized DCs exhibited slightly increased CD80/CD86 expression but typically still that of immature DCs and were resilient to freeze-thawing.
1224 15075365 Overnight culture activated the cells, up-regulating CD80/CD86 expression as well as interleukin-12 release, typically being boosted by CD40L.
1225 15083197 We constructed a recombinant adenovirus expressing the full-length cDNA of HCA661 gene and then transduced immature DCs, which had been generated with GM-CSF and IL-4 from peripheral blood mononuclear cell of HLA-A2(+) healthy donors.
1226 15083197 The resulting adenovirus-transduced DCs differentiated in the presence of monocyte-conditioned medium and poly [I] : poly [C], expressing the surface markers of mature DCs, including CD83, CD80, CD86 and HLA-DR.
1227 15085174 In both cases, antigen-specific CD4+ and CD8+ T cells were detectable after vaccination.
1228 15085174 Analysis of DC from Flt-3L-treated mice revealed an immature phenotype with low or absent expression levels of CD80, CD86 and CD40.
1229 15099757 Dendritic cell-like cells (Mo-DCs) generated from peripheral blood monocytes with interleukin-4 (IL-4) and granulocyte-macrophage colony-stimulating factor (GM-CSF) have been used as tools to treat cancer patients (DC-vaccines).
1230 15099757 In addition, we collected Mo-DCs from the collagen gels by collagenase treatment and analyzed the expression of antigen presentation-related molecules such as HLA-DR, CD80, CD83, and CD86 on Mo-DCs.
1231 15099760 The ingestion of MS did not change the cell surface expression of CD80, CD83, CD86 and HLA-DR of immature and mature DC, suggesting that MS uptake did not induce DC maturation but that maturation by cytokines or LPS was unaltered in the presence of MS.
1232 15099760 Furthermore, MS-loaded mature MoDC expressed normal levels of the chemokine receptor CCR7 and migrated as efficiently towards CCL19 or CCL21 as unloaded MoDC.
1233 15099760 DC viability and the secretion of TNF-alpha and IL-12 was not significantly changed by MS loading.
1234 15103504 In these studies, we demonstrate that exogenous soluble LIGHT or soluble CD40 ligand (CD40L) can promote monocyte-derived dendritic cell maturation in vitro by the up-regulation of CD86, CD80, CD83, and HLA-DR antigen expression.
1235 15103504 However, upon induction of maturation by LIGHT or CD40L, the expression of costimulatory and HLA-DR molecules is comparable between DCs from MDS and normal subjects.
1236 15103504 Exogenous LIGHT- and CD40L-stimulated mature DCs (mDCs) also displayed increased antigen presentation to autologous T lymphocytes (tetanus toxin) or allogeneic T lymphocytes in mixed lymphocyte reactions.
1237 15103504 DCs matured by LIGHT showed increased secretion of IL-6, IL-12p75, and TNF-alpha, but not IL-1beta.
1238 15103504 We conclude that both LIGHT and CD40L are immunoregulating factors that induce monocyte-derived iDCs from MDS patients to undergo maturation resulting in increased antigen presentation and T-cell activation.
1239 15120002 The in vivo adjuvant properties of N. meningitidis wild-type and mutant LPS was found to correlate with induction of co-stimulatory molecules, in particular CD80 and CD40, and with IL-12 production by LPS-stimulated bone marrow-derived BALB/c dendritic cells in vitro.
1240 15122754 HCs upregulate surface expression of major histocompatibility complex (MHC) class I molecules and CD1d but not MHC class II molecules Qa-1, CD80, CD86, CD54, or CD95; in addition, they expressed/secreted interleukin (IL)-10 and IL-4 but not IL-1, IL-6, IL-13, interferon (IFN)-gamma, tumor necrosis factor (TNF), IL-4, or IL-27 (i.e., they acquire the HC* phenotype).
1241 15122754 HCs* (but not HCs) induced specific activation, proliferation, and IFN-gamma, TNF, and IL-13 release of cocultured naïve CD8(+) T cells.
1242 15122754 Only recently activated CD8(+) T blasts (but not recently activated CD4(+) T blasts or activated cells of the innate immune system, including natural killer T [NKT] cells) induced the HC* phenotype that is prominent from day 10 to day 20 postvaccination (i.e., time points at which peak numbers of recently primed CD8(+) T blasts are found in the liver).
1243 15181285 Vaccination with membranes modified by protein transfer to express GPI-linked B7.1 (CD80), a costimulatory adhesion molecule, induces protective immunity in mice and allogeneic antitumor T-cell proliferation in humans in vitro.
1244 15193398 We also observed that at the molecular level Tomatine required both CD80 and CD86 costimulation to engender antigen-specific cellular immunity.
1245 15203918 CD11c (approximately 90%), MHC-II (approximately 70%), CD86 (approximately 20%), CD83 (approximately 5%), CD80 (approximately 40%), CD40 (approximately 40%), and CCR7 (approximately 5%).
1246 15204101 The performance of DCs in mixed lymphocyte reaction correlated significantly (p = 0.005) with the CD83 expression but not with the CD80, CD86, HLA-DR, CD1a, and CD1c expression.
1247 15207780 Vaccination with OVA-CT-pulsed DC concurrently induced strong CTL in vitro activity and anti-E.G7 tumor protection in vivo in WT, NK-depleted and CD4-deficient mice as well as in IL-12-/- and IFN-gamma-/- mice but not in CD8-deficient mice.
1248 15207780 Importantly, activation of CTL by OVA-CT-pulsed DC was dependent on CT-induced activation of adenylate cyclase and increased cAMP production by DC associated with increased expression of MHC class I and co-stimulatory molecules (CD80, CD86 and CD40).
1249 15214052 In this study, we demonstrate that pretreatment of monocytes with human HSP60 results in a suppression of TNF-alpha production on restimulation with HSP60.
1250 15214052 Furthermore, desensitization with HSP60 inhibits TNF-alpha expression in these cells in response to LPS stimulation, thereby inducing "cross-tolerance".
1251 15214052 In contrast to TNF-alpha suppression, IL-1beta expression was augmented in HSP60-pretreated monocytes on restimulation, while being suppressed in THP-1 cells.
1252 15214052 Addition of an anti-IL-10 neutralizing antibody had no significant effect on HSP60- or LPS-induced tolerance.HSP60 priming of monocytes also results in significant down-regulation of HLA-DR, CD86 and Toll-like receptor 4 expression, but minimally up-regulates CD80 expression, similar to that previously reported with LPS.
1253 15214052 By identifying a previously unrecognized "tolerizing" effect of extended exposure to autologous HSP60 on the innate immune system, as opposed to its recently identified pro-inflammatory stimulatory capacity, this study highlights a further level of complexity of our understanding of the biological activities of HSP.
1254 15242811 Human monocytes were cultured with GM-CSF and IL-4 for 6 days, followed by another 2 days in the presence of M1, M4 or TNF-alpha as a maturation stimulus.
1255 15242811 Stimulation with 20 microM of M1 or M4 increased expression level of CD80, CD83 and CD86 as expressed by mean fluorescence intensity (MFI) and decreased endocytic activity.
1256 15242811 In CTL assay, the production of IFN-gamma and 51Cr release on M4-primed mature DCs was more augmented than of immature DCs or TNF-alpha-primed mature DCs.
1257 15254744 OK432 and PSK were examined in vitro, and compared with lipopolysaccharide (LPS) and a cytokine cocktail (IL-1beta, TNF-alpha, IL-6 and PGE2).
1258 15254744 In the immunophenotypical analysis, the expression of CD80 and CD83 of DCs stimulated with OK-432 increased significantly compared with PSK and medium, and this up-regulation was the same as levels of DCs stimulated with cytokine cocktail.
1259 15254744 DCs stimulated with OK-432 showed significantly higher production of IL-12 and Th1-type cytokines (IL-2 and IFN-gamma) compared with DCs stimulated with LPS or cytokine cocktail.
1260 15265893 There are two principle subsets of dendritic cells (DCs); CD11c(+)CD123(-) myeloid DCs (MDCs) and CD11c(-)CD123(+) plasmacytoid DCs (PDCs).
1261 15265893 Using lineage (Lin) markers to exclude non-DCs, Lin(-)HLA-DR(+)CD11c(+)CD123(-) MDCs and Lin(-)HLA-DR(+)CD11c(-)CD123(+) PDCs were identified in the blood of uninfected macaques and healthy macaques infected with SIV or simian-human immunodeficiency virus.
1262 15265893 Overnight culture of DC-enriched Lin-depleted cells increased CD80 and CD86 expression.
1263 15265893 IL-12 production and CD80/CD86 expression by MDC/PDC mixtures was further enhanced by CD40L and ISS-ODN treatment.
1264 15265893 A CpG-B ISS-ODN increased CD80/CD86 expression by PDCs, but resulted in little IFN-alpha secretion unless IL-3 was added.
1265 15265893 In contrast, a CpG-C ISS-ODN and aldrithiol-2-inactivated (AT-2) SIV induced considerable PDC activation and IFN-alpha release without needing exogenous IL-3.
1266 15265893 The CpG-C ISS-ODN also stimulated IL-12 release (unlike AT-2 SIV) and augmented DC immunostimulatory activity, increasing SIV-specific T cell IFN-gamma production induced by AT-2 SIV-presenting MDC/PDC-enriched mixtures.
1267 15265893 These data highlight the functional capacities of MDCs and PDCs in naive as well as healthy, infected macaques, revealing a promising CpG-C ISS-ODN-driven DC activation strategy that boosts immune function to augment preventative and therapeutic vaccine efficacy.
1268 15265893 There are two principle subsets of dendritic cells (DCs); CD11c(+)CD123(-) myeloid DCs (MDCs) and CD11c(-)CD123(+) plasmacytoid DCs (PDCs).
1269 15265893 Using lineage (Lin) markers to exclude non-DCs, Lin(-)HLA-DR(+)CD11c(+)CD123(-) MDCs and Lin(-)HLA-DR(+)CD11c(-)CD123(+) PDCs were identified in the blood of uninfected macaques and healthy macaques infected with SIV or simian-human immunodeficiency virus.
1270 15265893 Overnight culture of DC-enriched Lin-depleted cells increased CD80 and CD86 expression.
1271 15265893 IL-12 production and CD80/CD86 expression by MDC/PDC mixtures was further enhanced by CD40L and ISS-ODN treatment.
1272 15265893 A CpG-B ISS-ODN increased CD80/CD86 expression by PDCs, but resulted in little IFN-alpha secretion unless IL-3 was added.
1273 15265893 In contrast, a CpG-C ISS-ODN and aldrithiol-2-inactivated (AT-2) SIV induced considerable PDC activation and IFN-alpha release without needing exogenous IL-3.
1274 15265893 The CpG-C ISS-ODN also stimulated IL-12 release (unlike AT-2 SIV) and augmented DC immunostimulatory activity, increasing SIV-specific T cell IFN-gamma production induced by AT-2 SIV-presenting MDC/PDC-enriched mixtures.
1275 15265893 These data highlight the functional capacities of MDCs and PDCs in naive as well as healthy, infected macaques, revealing a promising CpG-C ISS-ODN-driven DC activation strategy that boosts immune function to augment preventative and therapeutic vaccine efficacy.
1276 15265893 There are two principle subsets of dendritic cells (DCs); CD11c(+)CD123(-) myeloid DCs (MDCs) and CD11c(-)CD123(+) plasmacytoid DCs (PDCs).
1277 15265893 Using lineage (Lin) markers to exclude non-DCs, Lin(-)HLA-DR(+)CD11c(+)CD123(-) MDCs and Lin(-)HLA-DR(+)CD11c(-)CD123(+) PDCs were identified in the blood of uninfected macaques and healthy macaques infected with SIV or simian-human immunodeficiency virus.
1278 15265893 Overnight culture of DC-enriched Lin-depleted cells increased CD80 and CD86 expression.
1279 15265893 IL-12 production and CD80/CD86 expression by MDC/PDC mixtures was further enhanced by CD40L and ISS-ODN treatment.
1280 15265893 A CpG-B ISS-ODN increased CD80/CD86 expression by PDCs, but resulted in little IFN-alpha secretion unless IL-3 was added.
1281 15265893 In contrast, a CpG-C ISS-ODN and aldrithiol-2-inactivated (AT-2) SIV induced considerable PDC activation and IFN-alpha release without needing exogenous IL-3.
1282 15265893 The CpG-C ISS-ODN also stimulated IL-12 release (unlike AT-2 SIV) and augmented DC immunostimulatory activity, increasing SIV-specific T cell IFN-gamma production induced by AT-2 SIV-presenting MDC/PDC-enriched mixtures.
1283 15265893 These data highlight the functional capacities of MDCs and PDCs in naive as well as healthy, infected macaques, revealing a promising CpG-C ISS-ODN-driven DC activation strategy that boosts immune function to augment preventative and therapeutic vaccine efficacy.
1284 15315856 Nasal immunization of mice with ovalbumin (OVA) plus the Stx1-B or mStx1 induced OVA-specific serum IgG and mucosal IgA responses.
1285 15315856 IgG subclass analysis revealed that mStx1 and Stx1-B as mucosal adjuvants supported Ag-specific IgG1 followed by IgG2b Abs.
1286 15315856 The co-administration of either mStx1 or Stx1-B with OVA enhanced the production of IL-4, IL-5, IL-6 and IL-10 with low IFN-gamma, by OVA-specific CD4+ T cells.
1287 15315856 To better elucidate the mechanisms underlying mStx1's and Stx1-B's adjuvant activity, we next sought to examine whether or not dendritic cells (DC) residing in the nasopharyngeal-associated lymphoreticular tissue (NALT) were activated by nasal administration of Stx1-B or mStx1.
1288 15315856 We found that mice nasally administered with Stx1-B or mStx1 showed an up-regulation in the expression of CD80, CD86 and especially CD40 on NALT DCs.
1289 15315856 Taken together, these results suggest that non-toxic Stx derivatives could be effective mucosal adjuvants for the induction of Th2-type, CD4+ T cell mediated, antigen-specific mucosal IgA and systemic IgG Ab responses, and that they likely owe their adjuvant activity to the up-regulation of co-stimulatory molecules including CD80, CD86 and CD40 on NALT DCs.
1290 15315856 Nasal immunization of mice with ovalbumin (OVA) plus the Stx1-B or mStx1 induced OVA-specific serum IgG and mucosal IgA responses.
1291 15315856 IgG subclass analysis revealed that mStx1 and Stx1-B as mucosal adjuvants supported Ag-specific IgG1 followed by IgG2b Abs.
1292 15315856 The co-administration of either mStx1 or Stx1-B with OVA enhanced the production of IL-4, IL-5, IL-6 and IL-10 with low IFN-gamma, by OVA-specific CD4+ T cells.
1293 15315856 To better elucidate the mechanisms underlying mStx1's and Stx1-B's adjuvant activity, we next sought to examine whether or not dendritic cells (DC) residing in the nasopharyngeal-associated lymphoreticular tissue (NALT) were activated by nasal administration of Stx1-B or mStx1.
1294 15315856 We found that mice nasally administered with Stx1-B or mStx1 showed an up-regulation in the expression of CD80, CD86 and especially CD40 on NALT DCs.
1295 15315856 Taken together, these results suggest that non-toxic Stx derivatives could be effective mucosal adjuvants for the induction of Th2-type, CD4+ T cell mediated, antigen-specific mucosal IgA and systemic IgG Ab responses, and that they likely owe their adjuvant activity to the up-regulation of co-stimulatory molecules including CD80, CD86 and CD40 on NALT DCs.
1296 15336548 TgHSP70 induced the maturation of human monocyte-derived dendritic cells as determined by increased levels of surface markers, namely, CD40, CD80, CD86, and HLA-DR.
1297 15336548 TgHSP70 also stimulated extracellular signal-regulated kinase and p38 kinase pathways in DCs, and TgHSP70-induced IL-12 production was inhibited by SB203580 but not by PD98059, thus indicating the role of p38 kinase in the maturation of DCs by TgHSP70.
1298 15354200 Amplification of the lytic potential of effector/memory CD8+ cells by vector-based enhancement of ICAM-1 (CD54) in target cells: implications for intratumoral vaccine therapy.
1299 15354200 We demonstrated that enhanced expression of the costimulatory molecules CD80, CD54 and CD48 (designated rF-TRICOM) on target cells, as delivered via a recombinant fowlpox vector, results in an increased state of stimulation of CD8+ T cells, and consequent increased lysis of target cells.
1300 15354200 CTL studies in conjunction with antibody-blocking studies demonstrated that the enhanced effector activity of these CD8+ T cells is mediated mainly through CD54.
1301 15354200 The interaction of T cells with target cells that overexpress costimulatory molecules upon infection with rF-TRICOM leads to enhanced signaling through Lck, ZAP70, and STAT-1 in CD8+ T cells and heightened lytic activity of CD8+ cells through the formation of a greater number of immunological synapses.
1302 15364431 Here, we show that BCG infection of monocytes causes their differentiation into mature dendritic cells (DCs) lacking CD1 molecules expression, coupled with suboptimal up-regulation of HLA class II, CD80 and CD40 molecules and a marked unresponsiveness to lipopolysaccharide stimulation.
1303 15365776 A CD80-transfected human breast cancer cell variant induces HER-2/neu-specific T cells in HLA-A*02-matched situations in vitro as well as in vivo.
1304 15365776 Using CD80+ KS breast cancer cells and human leukocyte antigen (HLA)-A*02-matched peripheral blood mononuclear cells (PBMCs) of breast cancer patients in allogeneic mixed lymphocyte-tumor cell cultures (MLTCs), it was possible to isolate HLA-A*02-restricted cytotoxic T cells (CTLs).
1305 15365776 KS breast cancer cells were demonstrated to express already known TAAs such as CEA, MUC-1, MAGE-1, MAGE-2, and MAGE-3.
1306 15365776 To further improve antigenicity, HER-2/neu was added to this panel as a marker antigen known to elicit HLA-A*02-restricted CTLs in patients with breast cancer.
1307 15365776 Thus, the antigen-processing and antigen-presentation capacity of KS cells was further demonstrated by the stimulation of HER-2/neu-specific CD8+ T cells in PBMCs of breast cancer patients in vitro.
1308 15365776 These results gave a good rationale for a phase I/II trial, where the CD80+ HER-2/neu-overexpressing KS variant is actually used as a cellular vaccine in patients with metastatic breast cancer.
1309 15365776 As a proof of principle, we present data from two patients where a significant increase of interferon-gamma (IFN-gamma) release was detected when postvaccination PBMCs were stimulated by allogeneic vaccine cells as well as by HLA-A*02-restricted HER-2/neu epitopes.
1310 15365776 A CD80-transfected human breast cancer cell variant induces HER-2/neu-specific T cells in HLA-A*02-matched situations in vitro as well as in vivo.
1311 15365776 Using CD80+ KS breast cancer cells and human leukocyte antigen (HLA)-A*02-matched peripheral blood mononuclear cells (PBMCs) of breast cancer patients in allogeneic mixed lymphocyte-tumor cell cultures (MLTCs), it was possible to isolate HLA-A*02-restricted cytotoxic T cells (CTLs).
1312 15365776 KS breast cancer cells were demonstrated to express already known TAAs such as CEA, MUC-1, MAGE-1, MAGE-2, and MAGE-3.
1313 15365776 To further improve antigenicity, HER-2/neu was added to this panel as a marker antigen known to elicit HLA-A*02-restricted CTLs in patients with breast cancer.
1314 15365776 Thus, the antigen-processing and antigen-presentation capacity of KS cells was further demonstrated by the stimulation of HER-2/neu-specific CD8+ T cells in PBMCs of breast cancer patients in vitro.
1315 15365776 These results gave a good rationale for a phase I/II trial, where the CD80+ HER-2/neu-overexpressing KS variant is actually used as a cellular vaccine in patients with metastatic breast cancer.
1316 15365776 As a proof of principle, we present data from two patients where a significant increase of interferon-gamma (IFN-gamma) release was detected when postvaccination PBMCs were stimulated by allogeneic vaccine cells as well as by HLA-A*02-restricted HER-2/neu epitopes.
1317 15365776 A CD80-transfected human breast cancer cell variant induces HER-2/neu-specific T cells in HLA-A*02-matched situations in vitro as well as in vivo.
1318 15365776 Using CD80+ KS breast cancer cells and human leukocyte antigen (HLA)-A*02-matched peripheral blood mononuclear cells (PBMCs) of breast cancer patients in allogeneic mixed lymphocyte-tumor cell cultures (MLTCs), it was possible to isolate HLA-A*02-restricted cytotoxic T cells (CTLs).
1319 15365776 KS breast cancer cells were demonstrated to express already known TAAs such as CEA, MUC-1, MAGE-1, MAGE-2, and MAGE-3.
1320 15365776 To further improve antigenicity, HER-2/neu was added to this panel as a marker antigen known to elicit HLA-A*02-restricted CTLs in patients with breast cancer.
1321 15365776 Thus, the antigen-processing and antigen-presentation capacity of KS cells was further demonstrated by the stimulation of HER-2/neu-specific CD8+ T cells in PBMCs of breast cancer patients in vitro.
1322 15365776 These results gave a good rationale for a phase I/II trial, where the CD80+ HER-2/neu-overexpressing KS variant is actually used as a cellular vaccine in patients with metastatic breast cancer.
1323 15365776 As a proof of principle, we present data from two patients where a significant increase of interferon-gamma (IFN-gamma) release was detected when postvaccination PBMCs were stimulated by allogeneic vaccine cells as well as by HLA-A*02-restricted HER-2/neu epitopes.
1324 15456078 We found that lipopolysaccharides (LPS), unmethylated CpG motifs (CpG ODN) and sorbitol enhanced CVLP-induced stimulation of C57BL/6 mouse BMDCs as revealed by increased levels of CD40, CD80, MHC II and CD54 at the cell surface.
1325 15481142 After culture with clinical grade GM-CSF and IL-13, OM-197 at 20 microg/ml efficiently induced CD83+ Mo-DC.
1326 15481142 In comparison to immature Mo-DC that were derived by culture with GM-CSF and IL-13 only, CD40, CD80, CD86, HLA-ABC and HLA-DR molecules were up-regulated upon OM-197 or LPS treatment similarly.
1327 15481142 No significant difference in IFN-gamma quantification was shown between naive CD4+ T cells stimulated by LPS- or OM-197-Mo-DC suggesting that OM-197-Mo-DC can drive naive T cells towards a Th1 response profile that was mainly independent of IL-12 secretion.
1328 15482852 Porin of Shigella dysenteriae type 1 increased the mRNA levels for Toll-like receptor (TLR) 2 and TLR6 by 1.5- and 2.9-fold respectively, of peritoneal cavity B-1a and B-1b cells, implicating that coexpression of TLR2 and TLR6 is essential as a combinatorial repertoire for recognition of porin by the B-1 cells.
1329 15482852 Among the two key TLRs, TLR2 and TLR4, which are primarily responsible for recognizing majority of the bacterial products, TLR2 and not TLR4, participates in porin recognition.
1330 15482852 TLR2 got increased on both the B-1 cell populations whereas the TLR4 expression remained unaffected.
1331 15482852 Both of the B-1 cell populations expressed strongly the mRNA for NF-kappaB in the presence of porin, that was 2.4-fold more than untreated control, conforming to the earlier finding that coexpression of TLR2 and TLR6, resulted in robust NF-kappaB activation for signaling.
1332 15482852 CD80 expression got enhanced on the B-1a cells whereas CD86 got solely expressed on B-1b cells.
1333 15482852 The porin-mediated induction of IgA was augmented by interleukin-6 on B-1a and B-1b cells, by 2.4- and 2.6-fold, respectively.
1334 15531030 Incubation of immature human PBMC-derived DCs with SHIV VLPs for 48 h resulted in the significant up-regulation of CD40, CD80, CD83, CD54, CD86, HLA-A, B, C and HLA-DR, DP, DQ molecules on activated DC CD11c+ subpopulations.
1335 15531030 SHIV VLPs efficiently stimulated DCs to release IL-12, IFN-gamma and TNF-alpha.
1336 15542201 CD80 and CD86, but not CD154, augment DNA vaccine-induced protection in experimental bovine tuberculosis.
1337 15542201 The co-administration of costimulatory molecules CD80 (B7-1), CD86 (B7-2) and CD154 (CD40L) has been shown to enhance immune responses in several murine models.
1338 15542201 In these studies, we demonstrate that the co-administration of CD80 and CD86, but not CD154, to an existing candidate subunit DNA vaccine (ESAT-6) against bovine tuberculosis, enhances protection after aerosol challenge with virulent Mycobacterium bovis.
1339 15542201 Two independent trials were conducted in cattle to determine the adjuvant effect of encoded antigen + CD80/CD86 and directly compare the adjuvant activities of CD80/CD86 to those of CD154.
1340 15542201 Co-administration of either CD80/CD86 or CD154 enhanced ESAT-6-specific IFN-gamma responses as compared to animals vaccinated with ESAT-6 DNA alone.
1341 15542201 However, following aerosol challenge, only animals vaccinated with CD80/CD86 possessed decreased pathology of the lungs and associated lymph nodes, as measured by gross examination, radiographic lesion morphometry and bacterial recovery.
1342 15542201 Collectively, these results demonstrate that the co-administration of costimulatory molecules with a protective antigen target enhances bovine immune responses to DNA vaccination, and that CD80/CD86 is superior to CD154 in augmenting DNA vaccine-induced protection in experimental bovine tuberculosis.
1343 15542201 CD80 and CD86, but not CD154, augment DNA vaccine-induced protection in experimental bovine tuberculosis.
1344 15542201 The co-administration of costimulatory molecules CD80 (B7-1), CD86 (B7-2) and CD154 (CD40L) has been shown to enhance immune responses in several murine models.
1345 15542201 In these studies, we demonstrate that the co-administration of CD80 and CD86, but not CD154, to an existing candidate subunit DNA vaccine (ESAT-6) against bovine tuberculosis, enhances protection after aerosol challenge with virulent Mycobacterium bovis.
1346 15542201 Two independent trials were conducted in cattle to determine the adjuvant effect of encoded antigen + CD80/CD86 and directly compare the adjuvant activities of CD80/CD86 to those of CD154.
1347 15542201 Co-administration of either CD80/CD86 or CD154 enhanced ESAT-6-specific IFN-gamma responses as compared to animals vaccinated with ESAT-6 DNA alone.
1348 15542201 However, following aerosol challenge, only animals vaccinated with CD80/CD86 possessed decreased pathology of the lungs and associated lymph nodes, as measured by gross examination, radiographic lesion morphometry and bacterial recovery.
1349 15542201 Collectively, these results demonstrate that the co-administration of costimulatory molecules with a protective antigen target enhances bovine immune responses to DNA vaccination, and that CD80/CD86 is superior to CD154 in augmenting DNA vaccine-induced protection in experimental bovine tuberculosis.
1350 15542201 CD80 and CD86, but not CD154, augment DNA vaccine-induced protection in experimental bovine tuberculosis.
1351 15542201 The co-administration of costimulatory molecules CD80 (B7-1), CD86 (B7-2) and CD154 (CD40L) has been shown to enhance immune responses in several murine models.
1352 15542201 In these studies, we demonstrate that the co-administration of CD80 and CD86, but not CD154, to an existing candidate subunit DNA vaccine (ESAT-6) against bovine tuberculosis, enhances protection after aerosol challenge with virulent Mycobacterium bovis.
1353 15542201 Two independent trials were conducted in cattle to determine the adjuvant effect of encoded antigen + CD80/CD86 and directly compare the adjuvant activities of CD80/CD86 to those of CD154.
1354 15542201 Co-administration of either CD80/CD86 or CD154 enhanced ESAT-6-specific IFN-gamma responses as compared to animals vaccinated with ESAT-6 DNA alone.
1355 15542201 However, following aerosol challenge, only animals vaccinated with CD80/CD86 possessed decreased pathology of the lungs and associated lymph nodes, as measured by gross examination, radiographic lesion morphometry and bacterial recovery.
1356 15542201 Collectively, these results demonstrate that the co-administration of costimulatory molecules with a protective antigen target enhances bovine immune responses to DNA vaccination, and that CD80/CD86 is superior to CD154 in augmenting DNA vaccine-induced protection in experimental bovine tuberculosis.
1357 15542201 CD80 and CD86, but not CD154, augment DNA vaccine-induced protection in experimental bovine tuberculosis.
1358 15542201 The co-administration of costimulatory molecules CD80 (B7-1), CD86 (B7-2) and CD154 (CD40L) has been shown to enhance immune responses in several murine models.
1359 15542201 In these studies, we demonstrate that the co-administration of CD80 and CD86, but not CD154, to an existing candidate subunit DNA vaccine (ESAT-6) against bovine tuberculosis, enhances protection after aerosol challenge with virulent Mycobacterium bovis.
1360 15542201 Two independent trials were conducted in cattle to determine the adjuvant effect of encoded antigen + CD80/CD86 and directly compare the adjuvant activities of CD80/CD86 to those of CD154.
1361 15542201 Co-administration of either CD80/CD86 or CD154 enhanced ESAT-6-specific IFN-gamma responses as compared to animals vaccinated with ESAT-6 DNA alone.
1362 15542201 However, following aerosol challenge, only animals vaccinated with CD80/CD86 possessed decreased pathology of the lungs and associated lymph nodes, as measured by gross examination, radiographic lesion morphometry and bacterial recovery.
1363 15542201 Collectively, these results demonstrate that the co-administration of costimulatory molecules with a protective antigen target enhances bovine immune responses to DNA vaccination, and that CD80/CD86 is superior to CD154 in augmenting DNA vaccine-induced protection in experimental bovine tuberculosis.
1364 15542201 CD80 and CD86, but not CD154, augment DNA vaccine-induced protection in experimental bovine tuberculosis.
1365 15542201 The co-administration of costimulatory molecules CD80 (B7-1), CD86 (B7-2) and CD154 (CD40L) has been shown to enhance immune responses in several murine models.
1366 15542201 In these studies, we demonstrate that the co-administration of CD80 and CD86, but not CD154, to an existing candidate subunit DNA vaccine (ESAT-6) against bovine tuberculosis, enhances protection after aerosol challenge with virulent Mycobacterium bovis.
1367 15542201 Two independent trials were conducted in cattle to determine the adjuvant effect of encoded antigen + CD80/CD86 and directly compare the adjuvant activities of CD80/CD86 to those of CD154.
1368 15542201 Co-administration of either CD80/CD86 or CD154 enhanced ESAT-6-specific IFN-gamma responses as compared to animals vaccinated with ESAT-6 DNA alone.
1369 15542201 However, following aerosol challenge, only animals vaccinated with CD80/CD86 possessed decreased pathology of the lungs and associated lymph nodes, as measured by gross examination, radiographic lesion morphometry and bacterial recovery.
1370 15542201 Collectively, these results demonstrate that the co-administration of costimulatory molecules with a protective antigen target enhances bovine immune responses to DNA vaccination, and that CD80/CD86 is superior to CD154 in augmenting DNA vaccine-induced protection in experimental bovine tuberculosis.
1371 15542201 CD80 and CD86, but not CD154, augment DNA vaccine-induced protection in experimental bovine tuberculosis.
1372 15542201 The co-administration of costimulatory molecules CD80 (B7-1), CD86 (B7-2) and CD154 (CD40L) has been shown to enhance immune responses in several murine models.
1373 15542201 In these studies, we demonstrate that the co-administration of CD80 and CD86, but not CD154, to an existing candidate subunit DNA vaccine (ESAT-6) against bovine tuberculosis, enhances protection after aerosol challenge with virulent Mycobacterium bovis.
1374 15542201 Two independent trials were conducted in cattle to determine the adjuvant effect of encoded antigen + CD80/CD86 and directly compare the adjuvant activities of CD80/CD86 to those of CD154.
1375 15542201 Co-administration of either CD80/CD86 or CD154 enhanced ESAT-6-specific IFN-gamma responses as compared to animals vaccinated with ESAT-6 DNA alone.
1376 15542201 However, following aerosol challenge, only animals vaccinated with CD80/CD86 possessed decreased pathology of the lungs and associated lymph nodes, as measured by gross examination, radiographic lesion morphometry and bacterial recovery.
1377 15542201 Collectively, these results demonstrate that the co-administration of costimulatory molecules with a protective antigen target enhances bovine immune responses to DNA vaccination, and that CD80/CD86 is superior to CD154 in augmenting DNA vaccine-induced protection in experimental bovine tuberculosis.
1378 15542201 CD80 and CD86, but not CD154, augment DNA vaccine-induced protection in experimental bovine tuberculosis.
1379 15542201 The co-administration of costimulatory molecules CD80 (B7-1), CD86 (B7-2) and CD154 (CD40L) has been shown to enhance immune responses in several murine models.
1380 15542201 In these studies, we demonstrate that the co-administration of CD80 and CD86, but not CD154, to an existing candidate subunit DNA vaccine (ESAT-6) against bovine tuberculosis, enhances protection after aerosol challenge with virulent Mycobacterium bovis.
1381 15542201 Two independent trials were conducted in cattle to determine the adjuvant effect of encoded antigen + CD80/CD86 and directly compare the adjuvant activities of CD80/CD86 to those of CD154.
1382 15542201 Co-administration of either CD80/CD86 or CD154 enhanced ESAT-6-specific IFN-gamma responses as compared to animals vaccinated with ESAT-6 DNA alone.
1383 15542201 However, following aerosol challenge, only animals vaccinated with CD80/CD86 possessed decreased pathology of the lungs and associated lymph nodes, as measured by gross examination, radiographic lesion morphometry and bacterial recovery.
1384 15542201 Collectively, these results demonstrate that the co-administration of costimulatory molecules with a protective antigen target enhances bovine immune responses to DNA vaccination, and that CD80/CD86 is superior to CD154 in augmenting DNA vaccine-induced protection in experimental bovine tuberculosis.
1385 15551352 Concomitantly with HTLV-I-expression, these ATL cells expressed co-stimulatory molecules such as CD80, CD86 and OX40, and showed elevated levels of antigenicity against allogeneic T cells and HTLV-I Tax-specific cytotoxic T-lymphocytes (CTL).
1386 15558214 The inactivation of the MAPK pathway in both macrophages and dendritic cells leads to inhibition of proinflammatory cytokine secretion, downregulation of costimulatory molecules such as CD80 and CD86, and ineffective T cell priming.
1387 15566356 This study investigated the effects of the common gamma chain-binding cytokines, interleukin (IL)-2 and IL-15, on costimulatory properties of primary CLL cells from 51 patients.
1388 15566356 IL-2 improved the ability of CLL cells to stimulate T cell proliferation and increased the expression of costimulatory molecules (particularly CD80) in a dose-dependent fashion, especially in CLL cells with weak expression of CD38.
1389 15566356 CD80 and CD86 induction by IL-2 were positively regulated through the mitogen-activated protein kinase pathway, while CD86 expression was negatively regulated through Janus kinase pathways.
1390 15566356 However, further activation with protein kinase C agonists was required for IL-2 activated CLL cells to stimulate autologous T cells sufficiently to clear bystander CLL cells from mixed lymphocyte responses.
1391 15566356 These results suggest a role for IL-2, or IL-15, in immunotherapeutic strategies for CLL.
1392 15566356 This study investigated the effects of the common gamma chain-binding cytokines, interleukin (IL)-2 and IL-15, on costimulatory properties of primary CLL cells from 51 patients.
1393 15566356 IL-2 improved the ability of CLL cells to stimulate T cell proliferation and increased the expression of costimulatory molecules (particularly CD80) in a dose-dependent fashion, especially in CLL cells with weak expression of CD38.
1394 15566356 CD80 and CD86 induction by IL-2 were positively regulated through the mitogen-activated protein kinase pathway, while CD86 expression was negatively regulated through Janus kinase pathways.
1395 15566356 However, further activation with protein kinase C agonists was required for IL-2 activated CLL cells to stimulate autologous T cells sufficiently to clear bystander CLL cells from mixed lymphocyte responses.
1396 15566356 These results suggest a role for IL-2, or IL-15, in immunotherapeutic strategies for CLL.
1397 15585413 IL-2/B7.1 (CD80) fusagene transduction of AML blasts by a self-inactivating lentiviral vector stimulates T cell responses in vitro: a strategy to generate whole cell vaccines for AML.
1398 15585413 Specifically, syngeneic tumor cells genetically modified to express B7.1 (CD80) have been shown to induce rejection of previously established murine solid tumors, and transduction with IL-2 can further increase survival.
1399 15585413 IL-2/B7.1 (CD80) fusagene transduction of AML blasts by a self-inactivating lentiviral vector stimulates T cell responses in vitro: a strategy to generate whole cell vaccines for AML.
1400 15585413 Specifically, syngeneic tumor cells genetically modified to express B7.1 (CD80) have been shown to induce rejection of previously established murine solid tumors, and transduction with IL-2 can further increase survival.
1401 15585869 APCs expressing the activation markers MHC class II, CD80, and CD40 increased in number in the lung.
1402 15585869 LTK63 treatment increased the pathogen-specific IgA response in the nasal mucosa and simultaneously decreased inflammatory cytokine production (IFN-gamma and TNF-alpha) after infection.
1403 15585869 The number of activated CD8(+)CD44(+) T cells and the respiratory syncytial virus- or influenza-specific CD8-proliferative responses increased, although the total inflammatory infiltrate was reduced.
1404 15652674 Exposure to proteoliposomes from serogroup B Neisseria meningitidis (PL) induced up-regulation of MHC-II, MHC-I, CD40, CD80 and CD86 expression on the surface of murine bone marrow-derived dendritic cells (DC).
1405 15652674 CD40, CD80 and CD86 were up-regulated on bone marrow-derived macrophages (MPhi) upon stimulation with PL.
1406 15652674 A small increase in the expression of MHC-II, CD40 and CD86, as well as production of IL12(p70), was observed on the cell surface of DC, but not MPhi from LPS-non-responder C3H/HeJ after exposure to PL.
1407 15652674 DC, but not MPhi, incubated with PL containing ovalbumin (PL-OVA) presented OVA-specific peptides to CD4+ and CD8+ OVA-specific T-cell hybridomas.
1408 15652674 The work also shows the potential of PL as a general system to deliver antigens to DC for presentation to CD4+ and CD8+ T-cells.
1409 15652674 Exposure to proteoliposomes from serogroup B Neisseria meningitidis (PL) induced up-regulation of MHC-II, MHC-I, CD40, CD80 and CD86 expression on the surface of murine bone marrow-derived dendritic cells (DC).
1410 15652674 CD40, CD80 and CD86 were up-regulated on bone marrow-derived macrophages (MPhi) upon stimulation with PL.
1411 15652674 A small increase in the expression of MHC-II, CD40 and CD86, as well as production of IL12(p70), was observed on the cell surface of DC, but not MPhi from LPS-non-responder C3H/HeJ after exposure to PL.
1412 15652674 DC, but not MPhi, incubated with PL containing ovalbumin (PL-OVA) presented OVA-specific peptides to CD4+ and CD8+ OVA-specific T-cell hybridomas.
1413 15652674 The work also shows the potential of PL as a general system to deliver antigens to DC for presentation to CD4+ and CD8+ T-cells.
1414 15653438 Using one CpG-ODN, DSP30, we observed that it could upregulate not only Toll-like receptor 9 (TLR9) mRNA expression in activated B-cells, but also the early expression of CD69 followed by the sequential expression of CD80, CD86 and the nuclear factor (NF)-kappaB pathway.
1415 15653438 Furthermore, mRNA expression of certain B-cell-derived cytokines was influenced by exposure to DSP30, with a strong upregulation of interleukin 6 (IL-6) and downregulation of IL1-beta.
1416 15653438 Stimulation of B-cells, co-stimulated with IL-2, IL-10 and soluble CD40 ligand (sCD40L) with different CpG-ODNs, had differing effects on the terminal differentiation in vitro of B-cells into immunoglobulin-secreting cells.
1417 15693140 Dendritic cells derived from metastatic cancer patients vaccinated with allogeneic dendritic cell-autologous tumor cell hybrids express more CD86 and induce higher levels of interferon-gamma in mixed lymphocyte reactions.
1418 15693140 Mononuclear cells were isolated from patients' peripheral blood by density gradient centrifugation, and adherent cells were cultured in medium containing GM-CSF plus IL-4 and, after 5 days, TNF-alpha.
1419 15693140 After 2 more days, Mo-DCs were harvested and their CD80, CD86, and CD83 expression was assessed by flow cytometry.
1420 15693140 They were also used as stimulators in mixed lymphocyte reactions (MLR), where IFN-gamma production was measured by ELISA.
1421 15693140 Mo-DCs from unvaccinated patients expressed significantly lower levels of CD86, and tended to express lower levels of CD83 than Mo-DCs from healthy donors.
1422 15693140 However, Mo-DCs generated after hybrid cell vaccination presented increased expression of the same markers and induced significantly higher levels of IFN-gamma in MLR.
1423 15710900 Lactobacillus-exposed MDCs up-regulated HLA-DR, CD83, CD40, CD80, and CD86 and secreted high levels of IL-12 and IL-18, but not IL-10.
1424 15710900 IL-12 was sustained in MDCs exposed to all three Lactobacillus species in the presence of LPS from Escherichia coli, whereas LPS-induced IL-10 was greatly inhibited.
1425 15710900 MDCs activated with lactobacilli clearly skewed CD4(+) and CD8(+) T cells to T helper 1 and Tc1 polarization, as evidenced by secretion of IFN-gamma, but not IL-4 or IL-13.
1426 15725957 Co-incubation of immature DCs with ghosts resulted in decreased expression of CD1a, CD80, and CD83 molecules, while addition of maturation mix (TNF-alpha, IL-1 beta, IL-6, and PGE2) to the cultures enhanced expression of these molecules.
1427 15725957 No marked changes were observed in the expression of the CD11c, CD40, and CD86 surface molecules.
1428 15731055 DC exposed to live EBs acquired a mature DC morphology; expressed high levels of major histocompatibility complex (MHC) class II, CD80, CD86, CD40, and ICAM-1; produced elevated amounts of interleukin-12 and tumor necrosis factor alpha; and were efficiently recognized by Chlamydia-specific CD4+ T cells.
1429 15731055 In contrast, UV-EB-pulsed DC expressed low levels of CD40 and CD86 but displayed high levels of MHC class II, ICAM-1, and CD80; secreted low levels of proinflammatory cytokines; and exhibited reduced recognition by Chlamydia-specific CD4+ T cells.
1430 15731055 DC exposed to live EBs acquired a mature DC morphology; expressed high levels of major histocompatibility complex (MHC) class II, CD80, CD86, CD40, and ICAM-1; produced elevated amounts of interleukin-12 and tumor necrosis factor alpha; and were efficiently recognized by Chlamydia-specific CD4+ T cells.
1431 15731055 In contrast, UV-EB-pulsed DC expressed low levels of CD40 and CD86 but displayed high levels of MHC class II, ICAM-1, and CD80; secreted low levels of proinflammatory cytokines; and exhibited reduced recognition by Chlamydia-specific CD4+ T cells.
1432 15781116 The intrinsic cellular activities of the lipopeptide analogues incorporated into liposomes were monitored, in vitro, by measuring the up-regulation of the cell-surface markers CD80, CD83, CD86 and HLA-DR.
1433 15782312 A decrease in the proportions of the major BDCA-1+, CD1b myeloid dendritic cell subset and a reciprocal increase in the minor BDCA-3+ dendritic cell subsets resulted at 3-4 days, then their levels returned to normal.
1434 15782312 No significant changes in percentages of CD86 and CD80 APCs or CD4+, CD25+ T-cells were documented.
1435 15787742 Murine bone marrow-derived dendritic cells (DC) can be generated by culture in the presence of granulocyte/macrophage colony-stimulating factor (GM-CSF) alone or GM-CSF in conjunction with interleukin-4 (IL-4).
1436 15787742 Also, the four culture conditions generated CD11c+ DC with comparable levels of major histocompatibility complex (MHC) class II, CD40, CD80 and CD86 expression, with the exception of cells cultured under serum-free conditions in the absence of IL-4, which displayed suboptimal levels of these markers.
1437 15787742 However, both DC populations displayed a similar capacity to take up fluorescein isothiocyanate (FITC)-albumin by macropinocytosis and FITC-Dextran by the mannose receptor and to secrete IL-12 in response to stimulation with lipopolysaccharide (LPS) or an agonistic anti-CD40 monoclonal antibody.
1438 15787742 Therefore, we conclude that although both DC culture methods result in the production of DC with similar functional abilities, under serum-free conditions, DC cultured in GM-CSF and IL-4 show an increased stimulatory potential over DC cultured in GM-CSF alone.
1439 15793803 Human monocytes were cultured with GM-CSF and IL-4 for 6 days, followed by another 2 days in the presence of piceatannol or LPS.
1440 15793803 The expression levels of CD1a, CD80, CD83, and CD86 as expressed by mean fluorescence intensity (MFI) on DCs differentiated from immature DCs after culture with 1 muM of piceatannol for 2 days were enhanced and decreased endocytic activity.
1441 15804174 Moreover, cationic liposome stimulates the expression of CD80/CD86 on dendritic cells (DCs), but not the release of TNF-alpha from DCs, suggesting the existence of a NF-kappaB-independent immunostimulation pathway for cationic lipids such as DOTAP.
1442 15812230 Nonreplicating recombinant vaccinia virus expressing CD40 ligand enhances APC capacity to stimulate specific CD4+ and CD8+ T cell responses.
1443 15812230 Recently, we and others have demonstrated, in vitro and in vivo, that coexpression of CD80 and CD86 costimulatory molecules enhances the immunogenic capacity of a recombinant vaccinia virus (rVV) encoding different tumor-associated antigens.
1444 15812230 To further investigate the capacity of these vectors to provide ligands for different costimulatory pathways relevant in the generation of T cell responses, we constructed a recombinant virus (rVV) expressing CD40 ligand or CD154 (CD154rVV).
1445 15812230 Upon binding the CD40 receptor expressed on antigen presenting cells (APC), this molecule, physiologically expressed on activated CD4+ T cells, increases their antigen presentation and immunostimulatory capacities.
1446 15812230 CD154rVV infection of autologous fibroblasts, monocytes, or iDC promoted the expression of a number of cytokines, including GM-CSF, TNF-alpha, and IL-15 in iDC.
1447 15812230 Most importantly, IL-12 p40 gene expression and protein secretion were induced by CD154rVV but not by wild-type VV (WT VV) in either CD14+ cells or iDC, and these effects could be blocked by anti-CD40 monoclonal antibodies.
1448 15812230 Furthermore, phenotypic characterization of CD154rVV infected iDC revealed enhanced expression of CD83 and CD86 surface markers as compared with wild-type vaccinia virus infection.
1449 15812230 However, cytokine genes typically expressed by T cell receptor triggered T cells such as those encoding IL-2 and IFN-gamma, or T cell proliferation, were detectable to a significantly higher extent in CD154rVV infected cultures, as compared with WT VV.
1450 15812230 Activation of specific CD8+ T cells was then investigated using MART-1/Melan-A(27-35) epitope as the model of tumor-associated antigen (TAA).
1451 15814713 IL-10 deficiency caused early maturation and activation of pulsed DC (i.e., high CD11c, CD40, CD80, CD83, CD86, IL-1, IL-12, and the T cell-attracting chemokine CCL27/CTACK) and consequently an enhanced ability to process and present Ags for a rapid and robust T cell activation.
1452 15814713 Supporting comparative proteomics revealed further that IL-10 deficient DC possess specific immunobiological properties, e.g., the T cell-attracting chemokine CCL27/CTACK, calcium-dependent protein kinase, and the IL-1/IL-12 inducer, NKR-P1A (CD161), which differentiated them immunologically from wild-type DC that express molecules relating to anti-inflammatory, differentiative, and metabolic processes, e.g., the anti-IL-12 molecule peroxisome proliferator-activated receptor-alpha and thymidine kinase.
1453 15837362 A population of cells exhibiting bona fide dendritic cell (DC) morphological and functional characteristics was obtained by treating Aotus spp. monocytes with human IL-4 and GM-CSF.
1454 15837362 Although the purity of mature DCs was relatively low IL-4/GM-CSF-treated monocytes (hereafter called Aotus spp.
1455 15837362 DCs) down-regulated CD14 and up-regulated discrete levels of CD80, MHC-Class II and CD1b molecules in response to different maturation stimuli.
1456 15864589 Immunostimulatory properties of human dendritic cells generated using IFN-beta associated either with IL-3 or GM-CSF.
1457 15864589 In the present study, we analyze the features of type I IFNs DC generated in the presence of either IL-3 (IL-3-DC) or GM-CSF (GM-CSF-DC) and compare their capacity to respond to poly(I:C) and to subsequently trigger T-cell activation.
1458 15864589 After poly(I:C) maturation, both DC types display a marked upregulation of CD80, CD83 and CD86 and the same pattern of gene expression.
1459 15864589 Priming of autologous T cells by IL-3-DC or GM-CSF-DC pulsed with an HLA-A2 restricted melan-A derived peptide, lead to the expansion of peptide specific CTL secreting high amounts of IFN-gamma.
1460 15864589 We conclude that poly(I:C) matured IL-3-DC and GM-CSF-DC share similar phenotype and functional properties including the capacity to prime tumor-associated antigen specific CTL.
1461 15877606 Monocyte-derived dendritic cells (mDC), the most frequently applied DC subset in clinical studies, which can be obtained easily from peripheral blood monocytes after incubation with GM-CSF and IL-4, have not been clearly demonstrated to be activated by CpG oligodeoxynucleotides (ODN).
1462 15877606 However, we did not observe increased expression of maturation-associated and functionally relevant surface antigens (CD14, HLA-DR, CD40, CD83, CD80 and CD86), significant secretion of IL-12 and IFN-alpha in culture supernatant, or enhanced antitumour activation of cytokine-induced killer cells.
1463 15879130 Activated B cells exhibited increased expression of activation markers and ligands that are critical for cross-talk with T cells (CD19, CD25, CD80, CD86, MHC I, MHC II, and CD40).
1464 15891775 The DCs expressed CD11c, CD11b, and the costimulatory molecules CD40, CD80 and CD86, characteristic of mature DCs.
1465 15893625 As compared with soluble rPA, it was found that coculture of DC with rPA-loaded microparticles stimulated higher levels of MHC II, CD54, CD80 and CD86 expression (p<0.05).
1466 15936851 In this study, we demonstrated that WKYMVm enhanced the surface expression of CD80, but not that of CD40, CD86 and MHC class II, on mouse bone marrow-derived dendritic cells which is one of the essential costimulatory signals for the induction of immune responses.
1467 15936851 Furthermore, when WKYMVm was codelivered with HIV, HBV and Influenza DNA vaccines, WKYMVm selectively enhanced the vaccine-induced CD8(+) T cell responses in a dose-dependent manner, in terms of IFN-gamma secretion and cytolytic activity.
1468 15944268 Immunization with HIV-1 Gag protein conjugated to a TLR7/8 agonist results in the generation of HIV-1 Gag-specific Th1 and CD8+ T cell responses.
1469 15944268 Injection of R-848 and CpG oligodeoxynucleotides alone enhanced the innate immune responses in vivo as demonstrated by high serum levels of inflammatory cytokines, including IL-12p70 and IFN-alpha, and increased expression of CD80, CD86, and CD40 on CD11c(+) dendritic cells.
1470 15944268 By contrast, R-848 was a relatively poor adjuvant for inducing primary Th1 or CD8(+) T cell responses when administered with HIV-1 Gag protein.
1471 15944268 However, when a TLR7/8 agonist structurally and functionally similar to R-848 was conjugated to HIV-1 Gag protein both Th1 and CD8(+) T cells responses were elicited as determined by intracellular cytokine and tetramer staining.
1472 15944274 Exposure of a LC-like cell line to ATPgammaS in the presence of LPS and GM-CSF augmented the induction of I-A, CD80, CD86, IL-1beta, and IL-12 p40 while inhibiting the expression of IL-10, suggesting that the immunostimulatory activities of purinergic agonists in the skin are mediated at least in part by P2Rs on APCs.
1473 15944302 Whereas RA reduced type 1 cytokines (IFN-gamma and IL-12), PIC enhanced both type 1 and type 2 cytokines (IL-4 and IL-12) and cytokine-related transcription factors.
1474 15944302 Despite the presence of PIC, the IL-4:IFN-gamma ratio was significantly elevated by RA.
1475 15944302 In addition, RA and/or PIC modulated NK/NKT cell populations and the level of expression of the costimulatory molecules CD80/CD86, evident 3 days after priming.
1476 15944302 Notably, the NKT:NK and CD80:CD86 ratios were correlated with the IL-4:IFN-gamma ratio, indicative of multiple converging modes of regulation.
1477 15944302 Whereas RA reduced type 1 cytokines (IFN-gamma and IL-12), PIC enhanced both type 1 and type 2 cytokines (IL-4 and IL-12) and cytokine-related transcription factors.
1478 15944302 Despite the presence of PIC, the IL-4:IFN-gamma ratio was significantly elevated by RA.
1479 15944302 In addition, RA and/or PIC modulated NK/NKT cell populations and the level of expression of the costimulatory molecules CD80/CD86, evident 3 days after priming.
1480 15944302 Notably, the NKT:NK and CD80:CD86 ratios were correlated with the IL-4:IFN-gamma ratio, indicative of multiple converging modes of regulation.
1481 15961574 To identify DCs with differing abilities to direct Th1/Th2 cell differentiation, we cultured mouse bone marrow progenitors in granulocyte macrophage-colony stimulating factor (GM), GM + interleukin (IL)-4, or GM + IL-15 and generated three distinct DC populations.
1482 15961574 The GM + IL-4 DCs expressed high levels of CD80/CD86 and major histocompatibility complex (MHC) class II and produced low levels of IL-12p70.
1483 15961574 GM and GM + IL-15 DCs expressed low levels of CD80/CD86 and MHC class II.
1484 15961574 The GM + IL-15 DCs produced high levels of IL-12p70 and interferon (IFN)-gamma, whereas GM DCs produced only high levels of IL-12p70.
1485 15961574 Naive T cells stimulated with GM + IL-4 DCs secreted high levels of IL-4 and IL-5 in addition to IFN-gamma.
1486 15961574 In contrast, the GM + IL-15 DCs induced higher IFN-gamma production by T cells with little or no Th2 cytokines.
1487 15961574 To identify DCs with differing abilities to direct Th1/Th2 cell differentiation, we cultured mouse bone marrow progenitors in granulocyte macrophage-colony stimulating factor (GM), GM + interleukin (IL)-4, or GM + IL-15 and generated three distinct DC populations.
1488 15961574 The GM + IL-4 DCs expressed high levels of CD80/CD86 and major histocompatibility complex (MHC) class II and produced low levels of IL-12p70.
1489 15961574 GM and GM + IL-15 DCs expressed low levels of CD80/CD86 and MHC class II.
1490 15961574 The GM + IL-15 DCs produced high levels of IL-12p70 and interferon (IFN)-gamma, whereas GM DCs produced only high levels of IL-12p70.
1491 15961574 Naive T cells stimulated with GM + IL-4 DCs secreted high levels of IL-4 and IL-5 in addition to IFN-gamma.
1492 15961574 In contrast, the GM + IL-15 DCs induced higher IFN-gamma production by T cells with little or no Th2 cytokines.
1493 15972497 Our results showed that StxB1 and mStx1, but not native Stx1 (nStx1), resulted in enhanced expression of CD86, CD40, and major histocompatibility complex (MHC) class II molecules and, to some extent, also enhanced the expression of CD80 on bone marrow-derived DCs.
1494 15972497 StxB1-treated DCs exhibited an increase in tumor necrosis factor alpha and interleukin-12 (IL-12) production, a stimulation of DO11.10 T-cell proliferation, and the production of both Th1 and Th2 cytokines, including gamma interferon (IFN-gamma), IL-4, IL-5, IL-6, and IL-10.
1495 15972497 When mice were given StxB1 subcutaneously, the levels of CD80, CD86, and CD40, as well as MHC class II expression by splenic DCs, were enhanced.
1496 15972497 OVA-specific CD4+ T cells isolated from mice immunized with OVA plus mStx1 or StxB1 produced IFN-gamma, IL-4, IL-5, IL-6, and IL-10, indicating that mStx1 and StxB1 elicit both Th1- and Th2-type responses.
1497 15972497 Our results showed that StxB1 and mStx1, but not native Stx1 (nStx1), resulted in enhanced expression of CD86, CD40, and major histocompatibility complex (MHC) class II molecules and, to some extent, also enhanced the expression of CD80 on bone marrow-derived DCs.
1498 15972497 StxB1-treated DCs exhibited an increase in tumor necrosis factor alpha and interleukin-12 (IL-12) production, a stimulation of DO11.10 T-cell proliferation, and the production of both Th1 and Th2 cytokines, including gamma interferon (IFN-gamma), IL-4, IL-5, IL-6, and IL-10.
1499 15972497 When mice were given StxB1 subcutaneously, the levels of CD80, CD86, and CD40, as well as MHC class II expression by splenic DCs, were enhanced.
1500 15972497 OVA-specific CD4+ T cells isolated from mice immunized with OVA plus mStx1 or StxB1 produced IFN-gamma, IL-4, IL-5, IL-6, and IL-10, indicating that mStx1 and StxB1 elicit both Th1- and Th2-type responses.
1501 15981208 In cellular activation, the CD28 ligands B7-1 (CD80) and B7-2 (CD86) are thought to play nearly identical roles in T cell activation.
1502 15981208 We monitored the T cell response upon co-culture with HLA Class I-matched and mismatched renal carcinoma cells, respectively, that express different levels of B7-1 and B7-2, respectively.
1503 15981208 In a HLA Class I-mismatched co-culture, T cell proliferation, IFN-gamma and GM-CSF secretion equally depend on the levels of B7-1 and B7-2 on tumor cells.
1504 15981208 In contrast, in a HLA Class I-matched situation, B7-2 is more effective in the induction of IFN-gamma and GM-CSF secretion than B7-1, but both B7 molecules induce T cell proliferation equally efficient.
1505 15981208 B7-2 is more effective than B7-1 in inducing TNF-alpha and IL-10 secretion in both HLA Class I-matched and mismatched situations.
1506 15981208 The distinct patterns of cytokine induction by B7-1 and B7-2 obviously depend on the HLA Class I compatibility.
1507 16113601 Neuroblastoma cells transiently transfected to simultaneously express the co-stimulatory molecules CD54, CD80, CD86, and CD137L generate antitumor immunity in mice.
1508 16113601 AGN2a cells nucleofected to express the co-stimulatory molecules CD80 and CD86 expressed higher levels of these molecules than cells that had been permanently transfected with these same plasmid vectors, and the nucleofected cells were as effective as the permanently transfected cells at inducing an antitumor response in vivo in a tumor prevention model.
1509 16113601 AGN2a cells nucleofected with four separate plasmid vectors encoding CD54, CD80, CD86, and CD137L induced a T-cell immune response in vitro and served as a potent tumor vaccine in the tumor prevention model.
1510 16113601 Neuroblastoma cells transiently transfected to simultaneously express the co-stimulatory molecules CD54, CD80, CD86, and CD137L generate antitumor immunity in mice.
1511 16113601 AGN2a cells nucleofected to express the co-stimulatory molecules CD80 and CD86 expressed higher levels of these molecules than cells that had been permanently transfected with these same plasmid vectors, and the nucleofected cells were as effective as the permanently transfected cells at inducing an antitumor response in vivo in a tumor prevention model.
1512 16113601 AGN2a cells nucleofected with four separate plasmid vectors encoding CD54, CD80, CD86, and CD137L induced a T-cell immune response in vitro and served as a potent tumor vaccine in the tumor prevention model.
1513 16113601 Neuroblastoma cells transiently transfected to simultaneously express the co-stimulatory molecules CD54, CD80, CD86, and CD137L generate antitumor immunity in mice.
1514 16113601 AGN2a cells nucleofected to express the co-stimulatory molecules CD80 and CD86 expressed higher levels of these molecules than cells that had been permanently transfected with these same plasmid vectors, and the nucleofected cells were as effective as the permanently transfected cells at inducing an antitumor response in vivo in a tumor prevention model.
1515 16113601 AGN2a cells nucleofected with four separate plasmid vectors encoding CD54, CD80, CD86, and CD137L induced a T-cell immune response in vitro and served as a potent tumor vaccine in the tumor prevention model.
1516 16113842 Furthermore, B-CLL-DCs generated from the 2 CLL subgroups up-regulated MHC-II, CD80, CD86, CD83, CD40, and CD54 and down-regulated CD206 in response to stimulation with a cocktail of cytokines (CyC) and secreted increased levels of tumor necrosis factor alpha, interleukin (IL)-8, IL-6, IL-12 (p70), and RANTES in a manner typical of mature normal-DCs.
1517 16155029 New antibodies targeting CD20 with augmented complement or Fc receptor binding are now being evaluated and will eventually have to be compared with rituximab.
1518 16155029 New antibodies targeting antigens such as CD40 and CD80 are also being tested alone and in combination with rituximab.
1519 16155029 These approaches attempt to actively induce specific humoral or cellular immune responses to the Ig-Id by attaching the protein to a carrier protein and the use of an immunologic adjuvant such as granulocyte macrophage colony-stimulating factor.
1520 16171908 The EC109-DC cells could proliferate slowly in vitro and highly expressed CD80, CD83 and CD86.
1521 16178769 In particular, modulation of the expression of co-stimulatory molecules on the targeted APC; CD80, CD86, CD83 and B7RP-1, play important roles for the effect of the ADP-ribosylating CTA1-based adjuvants for the development of tolerance or active IgA immunity.
1522 16179007 Adenovirus vectors encoding carcinoembryonic antigen (Ad-CEA) or costimulatory molecules CD80, intercellular adhesion molecule-1 (ICAM-1) and leucocyte function-associated antigen-3 (LFA-3) (Ad-STIM) were used to transduce murine bone marrow-derived dendritic cells (BMDC).
1523 16179007 Transduction of cells grown in presence of heterologous serum increased the expression of costimulatory molecules, major histocompatibility complex class II, of IL-6 and IL-12.
1524 16179007 Nonetheless, CEA-specific CD8+ T-cell response was enhanced upon coinfection of Ad-STIM and Ad-CEA in both mouse strains, although this immune response was not sufficient to protect CEA-tg mice from tumour challenge.
1525 16197973 Human monocytes were cultured with GM-CSF and IL-4 for 6 days followed by another 1 day in the presence of SUL-1 or LPS.
1526 16197973 The expression levels of CD1a, CD80, CD83, CD86 and HLA-DR as expressed by mean fluorescence intensity (MFI) on DC differentiated from immature DC after culture with 1.0 microg/ml of SUL-1 for 1 day were enhanced and decreased endocytic activity.
1527 16197973 Cell surface expression of CD80, CD83 and CD86 on SUL-1-treated DC was inhibited by anti-DC-SIGN mAb, while anti-DC-SIGN mAb had no influence on allogeneic T cell proliferation by SUL-1-treated DC.
1528 16197973 Human monocytes were cultured with GM-CSF and IL-4 for 6 days followed by another 1 day in the presence of SUL-1 or LPS.
1529 16197973 The expression levels of CD1a, CD80, CD83, CD86 and HLA-DR as expressed by mean fluorescence intensity (MFI) on DC differentiated from immature DC after culture with 1.0 microg/ml of SUL-1 for 1 day were enhanced and decreased endocytic activity.
1530 16197973 Cell surface expression of CD80, CD83 and CD86 on SUL-1-treated DC was inhibited by anti-DC-SIGN mAb, while anti-DC-SIGN mAb had no influence on allogeneic T cell proliferation by SUL-1-treated DC.
1531 16207252 A novel CD4-CD8alpha+CD205+CD11b- murine spleen dendritic cell line: establishment, characterization and functional analysis in a model of vaccination to toxoplasmosis.
1532 16207252 These cells display similar morphology, phenotype and activity to CD4(-)CD8alpha(+)CD205(+)CD11b(-) DCs purified ex vivo.
1533 16207252 Toxoplasma gondii antigen was shown to be taken up by these cells and to increase class I and class II major histocompatibility complex (MHC), CD40, CD80 and CD86 surface expression.
1534 16207252 The SRDC or CD4(-)CD8alpha(+)CD205(+)CD11b(-) DC line can be expected to be a very useful tool for immunobiology studies of DC.
1535 16210624 Whereas CTB only delivered the Ag to MZ DC, the ADP-ribosyltransferase activity of CT was required for the maturation and migration of DC to the T cell zone, where these cells distinctly up-regulated CD86, but not CD80.
1536 16246469 However, both wild type meningococcal LOS and KDO(2)-lipid A, significantly up-regulated CD80, CD83 and CD86 and released significantly higher amounts of IL-12p70, IL-6, IL-10, TNFalpha, MCP-1, IP-10 and RANTES.
1537 16246469 Further, DCs stimulated with wild type or KDO(2)-lipid A but not meningococcal lipid A or penta-acylated KDO(2)-lipid A stimulated naïve allogeneic CD4+ T cells to secrete enhanced levels of IFN-gamma, relative to T cells primed with immature DCs.
1538 16246469 In contrast to Escherichia coli LPS, IL-5 production was enhanced or maintained in CD4+ T-cells stimulated with MDDC exposed to wild-type meningococcal LOS and KDO(2)-lipid A.
1539 16246469 These data suggest that KDO linked to a fully acylated meningococcal lipid A is required for meningococcal endotoxin's immunostimulatory activity of human MDDC via TLR4/MD-2 and that different endotoxin structures influence Th responses mediated by MDDC.
1540 16279537 The generation of ripe dendrite cells (DC) of marrow origin was obtained with the use of the vaccine Immunovac-BN-4, an immunomodulator of microbial origin, as well as Klebsiella pneumoniae LPS and TNF-alpha, as ripening inducers.
1541 16279537 The immunophenotype of cells altered from CD34+, CD38-, CD40-, CD80-, CD86-, MHC I-, MHC II-, F4/80- to CD34-, CD38+, CD40+, CD80+, MHC I+, MHC II+, F4/ 80(low).
1542 16279537 In culture medium with ripe DC the levels of such cytokines as IL-1b, IL-6, IL-12, IFN-gamma, TNF-alpha significantly increased and the production of IL-4 decreased.
1543 16279537 The content of IL-2 and IL-10 remained unchanged.
1544 16289277 The rAAV-altered DC displayed higher levels of CD80, CD83, CD86, and CD 1a than control DC.
1545 16289277 These AAV/core: DC-stimulated CTL displayed higher IFN-gamma expression, higher CD8:CD4 ratios, and lower CD56:CD8 ratios than controls.
1546 16289277 The rAAV-loading derived CD8+ T cells had more CD69+ cells and the CD4+ T populations had fewer CD25+ cells than controls.
1547 16310900 Non PC liposome entrapped promastigote antigens elicit parasite specific CD8+ and CD4+ T-cell immune response and protect hamsters against visceral leishmaniasis.
1548 16310900 In addition, the delivery of sLAg via escheriosomes enhanced the expression of costimulatory signals (CD80 and CD86) as determined in peritoneal macrophages obtained from BALB/c mice.
1549 16315029 Immature bone marrow derived DC grown in vitro with IL-4 and GM-CSF were pulsed with B16-CD44.
1550 16315029 After 48 h of pulsing, maturation of DC was demonstrated by production of IL-12 and upregulation of CD80 and CD40 expression.
1551 16315029 To test the efficacy of vaccination with DC+B16-CD44, mice were vaccinated subcutaneously Lymphocytes from mice vaccinated with DC+B16-CD44 produced IFN-gamma in response to B16 melanoma lysates as well as an MHC class I restricted B16 melanoma-associated peptide, indicating B16 specific CD8 T cell activation.
1552 16330534 Compared with blood counterparts, lymph monocytes expressed lower levels of CD40, and granulocytes expressed higher levels of CD80.
1553 16379000 Upregulated transcripts correlated with genes implicated in immune responses, including those encoding interleukin-1 receptor 2 (IL-1R2), IL-6, ISG-15, CD-80, and TNFSF7.
1554 16379000 NYVAC infection also stimulated the expression of NF-kappaB1 and NF-kappaB2 as well as that of NF-kappaB target genes.
1555 16420604 Both DEN2 and LAV2 increased the expression of the phenotypic markers CD80, CD86, CD40, CD1a, HLA ABC and CD83, demonstrating cellular activation.
1556 16420604 Stimulated dendritic cells produced tumor necrosis factor-alpha in particular, and, to a lower extent, interleukin 6.
1557 16421019 In the following series of experiments, we determined whether a tumor cell vaccine that uses costimulatory signals (CD80 and IL-12) is capable of eliminating tumors within the immune-privileged anterior chamber.
1558 16424052 Tumor cells transduced with the MHC class II Transactivator and CD80 activate tumor-specific CD4+ T cells whether or not they are silenced for invariant chain.
1559 16424052 Because expression of multiple MHC II alleles would facilitate presentation of a broader repertoire of tumor antigens, we have now transduced tumor cells with the MHC class II transactivator (CIITA), a regulatory gene that coordinately increases expression of all MHC II alleles.
1560 16424052 To determine if Ii expression affects presentation of MHC class II-restricted endogenously synthesized tumor antigens in human tumor cells, HLA-DR-MCF10 breast cancer cells were transduced with the CIITA, CD80 costimulatory molecule gene, and with or without small interfering RNAs (siRNA) specific for Ii.
1561 16424052 Ii expression is silenced >95% in CIITA/CD80/siRNA transductants; down-regulation of Ii does not affect HLA-DR expression or stability; and Ii(+) and Ii(-) transductants activate human CD4+ T cells to DRB1*0701-restricted HER-2/neu epitopes.
1562 16424052 Therefore, tumor cells transduced with the CIITA, CD80, and with or without Ii siRNA present endogenously synthesized tumor antigens and are potential vaccines for activating tumor-specific CD4+ T cells.
1563 16424052 Tumor cells transduced with the MHC class II Transactivator and CD80 activate tumor-specific CD4+ T cells whether or not they are silenced for invariant chain.
1564 16424052 Because expression of multiple MHC II alleles would facilitate presentation of a broader repertoire of tumor antigens, we have now transduced tumor cells with the MHC class II transactivator (CIITA), a regulatory gene that coordinately increases expression of all MHC II alleles.
1565 16424052 To determine if Ii expression affects presentation of MHC class II-restricted endogenously synthesized tumor antigens in human tumor cells, HLA-DR-MCF10 breast cancer cells were transduced with the CIITA, CD80 costimulatory molecule gene, and with or without small interfering RNAs (siRNA) specific for Ii.
1566 16424052 Ii expression is silenced >95% in CIITA/CD80/siRNA transductants; down-regulation of Ii does not affect HLA-DR expression or stability; and Ii(+) and Ii(-) transductants activate human CD4+ T cells to DRB1*0701-restricted HER-2/neu epitopes.
1567 16424052 Therefore, tumor cells transduced with the CIITA, CD80, and with or without Ii siRNA present endogenously synthesized tumor antigens and are potential vaccines for activating tumor-specific CD4+ T cells.
1568 16424052 Tumor cells transduced with the MHC class II Transactivator and CD80 activate tumor-specific CD4+ T cells whether or not they are silenced for invariant chain.
1569 16424052 Because expression of multiple MHC II alleles would facilitate presentation of a broader repertoire of tumor antigens, we have now transduced tumor cells with the MHC class II transactivator (CIITA), a regulatory gene that coordinately increases expression of all MHC II alleles.
1570 16424052 To determine if Ii expression affects presentation of MHC class II-restricted endogenously synthesized tumor antigens in human tumor cells, HLA-DR-MCF10 breast cancer cells were transduced with the CIITA, CD80 costimulatory molecule gene, and with or without small interfering RNAs (siRNA) specific for Ii.
1571 16424052 Ii expression is silenced >95% in CIITA/CD80/siRNA transductants; down-regulation of Ii does not affect HLA-DR expression or stability; and Ii(+) and Ii(-) transductants activate human CD4+ T cells to DRB1*0701-restricted HER-2/neu epitopes.
1572 16424052 Therefore, tumor cells transduced with the CIITA, CD80, and with or without Ii siRNA present endogenously synthesized tumor antigens and are potential vaccines for activating tumor-specific CD4+ T cells.
1573 16424052 Tumor cells transduced with the MHC class II Transactivator and CD80 activate tumor-specific CD4+ T cells whether or not they are silenced for invariant chain.
1574 16424052 Because expression of multiple MHC II alleles would facilitate presentation of a broader repertoire of tumor antigens, we have now transduced tumor cells with the MHC class II transactivator (CIITA), a regulatory gene that coordinately increases expression of all MHC II alleles.
1575 16424052 To determine if Ii expression affects presentation of MHC class II-restricted endogenously synthesized tumor antigens in human tumor cells, HLA-DR-MCF10 breast cancer cells were transduced with the CIITA, CD80 costimulatory molecule gene, and with or without small interfering RNAs (siRNA) specific for Ii.
1576 16424052 Ii expression is silenced >95% in CIITA/CD80/siRNA transductants; down-regulation of Ii does not affect HLA-DR expression or stability; and Ii(+) and Ii(-) transductants activate human CD4+ T cells to DRB1*0701-restricted HER-2/neu epitopes.
1577 16424052 Therefore, tumor cells transduced with the CIITA, CD80, and with or without Ii siRNA present endogenously synthesized tumor antigens and are potential vaccines for activating tumor-specific CD4+ T cells.
1578 16443827 C274 induced macaque CD20(+) B cells to proliferate more strongly than CD40 ligand or CpG-B ISS-ODN.
1579 16443827 Increased expression of CD40, CD80, and CD86 by B cells was apparent within 24 h of exposure to C274 and persisted for up to 1 week.
1580 16443827 C274-stimulated, B cell-enriched and peripheral blood mononuclear cell suspensions from naïve and immunodeficiency virus-infected monkeys secreted several cytokines [e.g., interleukin (IL)-3, IL-6, IL-12, interferon-alpha] and chemokines [e.g., monocyte chemoattractant protein-1/CC chemokine ligand 2 (CCL2), macrophage-inflammatory protein-1alpha/CCL3, IL-8/CXC chemokine ligand 8].
1581 16446175 Culturing in the presence of granulocyte monocyte colony stimulating factor (GM-CSF) increased the in vitro differentiation and maturation of these cells into BM-derived DCs (CD11c+ and MHC class II+).
1582 16446175 Maturation of DCs was determined by increased CD80 and CD86 expression, IL-4 and IL-12 production, reduction in phagocytic capacity and increase in the antigen presenting ability to primed or naïve T lymphocytes.
1583 16455170 KM+ induced a smaller inflammatory reaction in the air pouch model and was able to inhibit differentiation of dendritic cells (BMDC), but to induce maturation by enhancing the expression of MHC II, CD80 and CD86.
1584 16455994 In this study, we show that BLS stimulates bone marrow dendritic cells from mice in vitro to up-regulate the levels of costimulatory molecules (CD40, CD80, and CD86) and major histocompatibility class II Ag.
1585 16474127 Our results demonstrate that, in contrast to the rwt virus, rM51R-M virus induced the maturation of myeloid DC (mDC) populations, as indicated by an increase in the surface expression of CD40, CD80, and CD86 as well as the secretion of interleukin-12 (IL-12), IL-6, and type I IFN.
1586 16474127 Our studies also indicated that the production of costimulatory molecules on mDC by rM51R-M virus was dependent on the type I IFN receptor, while maturation induced by this virus was largely independent of MyD88.
1587 16493050 Myeloid cells had a CD4+CD11b+CD11c+CD16+CD123(low)HLA-DR- phenotype, expressed myeloperoxidase, and included a population of M-CSFR+ monocyte-lineage committed cells.
1588 16493050 Further culture of myeloid cells in serum-free medium with GM-CSF and IL-4 generated cells that had typical dendritic morphology; expressed high levels of MHC class I and II molecules, CD1a, CD11c, CD80, CD86, DC-SIGN, and CD40; and were capable of Ag processing, triggering naive T cells in MLR, and presenting Ags to specific T cell clones through the MHC class I pathway.
1589 16493050 Incubation of DCs with A23187 calcium ionophore for 48 h induced an expression of mature DC markers CD83 and fascin.
1590 16493050 The combination of GM-CSF with IL-4 provided the best conditions for DC differentiation.
1591 16493050 DCs obtained with GM-CSF and TNF-alpha coexpressed a high level of CD14, and had low stimulatory capacity in MLR.
1592 16499575 These cells can be generated from peripheral blood monocytes cultured with granulocyte macrophage-colony stimulating factor (GM-CSF) and interleukin-4 (IL-4).
1593 16499575 We found that 24-h IFN-alpha co-culture of day 7 monocyte-derived DC generated with GM-CSF and IL-4 induces increased numbers of DC positive for CD54 and CD40 together with the co-stimulatory molecule CD80 but not the activation marker CD83.
1594 16499575 Also, IFN-alpha maturation leads to an increase in IP-10 and MCP-1 chemokine secretion, but only a minor increase in IL-12p40 secretion.
1595 16500130 Dendritic cells express CCR7 and migrate in response to CCL19 (MIP-3beta) after exposure to Helicobacter pylori.
1596 16500130 Migration of DC to lymph nodes is regulated by chemokine receptor CCR7, expressed on mature DC, and the CCR7 ligands CCL19 and CCL21.
1597 16500130 Stimulation with H. pylori induced maturation of DC, i.e. up-regulation of the chemokine receptors CCR7 and CXCR4 and the maturation markers HLA-DR, CD80 and CD86.
1598 16500130 Despite low surface expression of CCR7 protein following stimulation with H. pylori compared to E. coli, the DC migrated equally well towards CCL19 after stimulation with both bacteria.
1599 16621031 Various adhesion molecules, such as B7-1 (CD80) and heat stable antigen (HSA, CD24), expressed on antigen presenting cells have been demonstrated to provide costimulatory signals to T cells.
1600 16621190 The VLP induced an increase in expression of CD40, CD80 and CD86 but required an adjuvant, CpG DNA oligo-deoxy nucleotides (ODN) motifs, to enhance these responses.
1601 16630025 Interferon-alpha (IFN-alpha) alone was a poor inducer of MoDC maturation, but in association with tumour necrosis factor-alpha (TNF-alpha), or TLR ligands such as lipopolysaccharide and polyinosinic-polycytidylic acid I:C, an up-regulation of major histocompatibility complex II and CD80/86 expression was noted, along with reduced endocytic activity.
1602 16630025 Indeed, MoDC did not respond to transmissible gastroenteritis virus (TGEV), whereas NIPC produced high levels of IFN-alpha and TNF-alpha after TGEV stimulation.
1603 16643898 We previously demonstrated that DBA/2 mice immunized in the flank with a P815 tumor cell vaccine that expressed CD80/IL-12 was unable to terminate immune privilege and prevent tumor growth in the anterior chamber.
1604 16678311 OprI activated porcine monocyte-derived dendritic cells (MoDC), upregulating CD80/86 and MHC class II expression, as well as pro-inflammatory cytokines.
1605 16690948 We hypothesized that plasmacytoid dendritic cells, the cells that provide large amounts of IFN-alpha in response to Toll-like receptor 9 (TLR9) agonists, are defective in neonates.
1606 16690948 TLR9-stimulation of whole blood from adults and neonates resulted in comparable amounts of IFN-alpha production.
1607 16690948 However, we observed small but significant differences in IFN-alpha production from purified CD123+ plasmacytoid dendritic cells from neonates after stimulation with the TLR9 ligand CpG-DNA.
1608 16690948 While purified CD123+ plasmacytoid dendritic cells from adults up-regulated co-stimulatory molecules CD80 and CD86 with IL-3 alone those from neonates required the addition of CpG-DNA to reach adult levels.
1609 16735086 Hyperthermia increases the expression of co-stimulatory molecules such as CD80 and CD86.
1610 16741971 Antitumor efficacy of DNA vaccination to the epigenetically acting tumor promoting transcription factor BORIS and CD80 molecular adjuvant.
1611 16741971 Interestingly, BORIS induces demethylation and subsequent expression of many cancer-testis genes, including MAGE-A1 and NY-ESO-1, indicating that it is expressed very early in malignancy and might be an attractive candidate for immunotherapy.
1612 16750567 Besides TLRs, mRNA for MyD88 and TRAF6, and nuclear translocation of NF-kappaB were enhanced that indicate their involvement in tandem in the activity of porin.
1613 16750567 The protein selectively up-regulated CD80 on the activated MPhi together with MHC class II molecule and CD40, and had no effect on CD86 expression.
1614 16750567 The porin-induced profile of MIP-1alpha, MIP-1beta and RANTES showed strong bias for chemokines correlated with M1 polarization.
1615 16750567 Intracellular expression and release of TNF-alpha and IL-12 in presence of porin was found to be TLR2 and NF-kappaB dependent.
1616 16750567 Induction of TNF-alpha and IL-12 along with the chemokine profile suggests type I polarization of the MPhi that would influence Th1-type response.
1617 16765503 Interestingly, the immunization with escheriosome-encapsulated antigen resulted in upregulation of CD80 and CD86 on the surface of antigen presenting cells (APCs) as well.
1618 16793161 In addition to imparting significant buffering ability to these cationic microparticles, flow cytometry studies indicate that these DNA loaded microparticles significantly up regulate CD80 and MHC class II markers in phagocytic RAW264.7 cells, indicating intrinsic adjuvant effects.
1619 16793312 Cells infected with the double sseC sopB, phoP sopB and aroA sopB mutants also exhibited higher expression of MHC, CD80, CD86 and CD54 molecules, and showed a stronger capacity to process and present an I-E(d)-restricted epitope from the influenza hemagglutinin (HA) to CD4+ cells from TCR-HA transgenic mice in vitro.
1620 16823912 DC were incubated with PL resulting in up-regulation of MHC-II, CD40, CD80, and CD86 expression and production of TNFalpha and IL12(p70).
1621 16823912 PL-OVA presented OVA-specific peptides to CD4+ and CD8+ OVA-specific T-cell hybridomas.
1622 16823912 PL exerts an immunomodulatory effect on DC and is a general system to deliver antigens for presentation to CD4+ and CD8+ T-cells possibly implicated in the induction CD8+ cytotoxic T lymphocytes (CTLs) responses.
1623 16841083 The HER-2/Neu oncogene has been implicated in human and mouse breast cancer.
1624 16841083 We have expressed the class II transactivator (CIITA) and/or the costimulatory molecule CD80 (B7.1) in a mammary carcinoma cell line (MCNeuA) derived from these mice.
1625 16841083 When injected into MMTV-neu mice, tumor cells expressing CD80 or CD80 and CIITA, were rejected completely.
1626 16841083 Cells expressing only CD80 or CIITA were not as effective as antitumor vaccines in preventing the development of spontaneous tumors.
1627 16841083 The HER-2/Neu oncogene has been implicated in human and mouse breast cancer.
1628 16841083 We have expressed the class II transactivator (CIITA) and/or the costimulatory molecule CD80 (B7.1) in a mammary carcinoma cell line (MCNeuA) derived from these mice.
1629 16841083 When injected into MMTV-neu mice, tumor cells expressing CD80 or CD80 and CIITA, were rejected completely.
1630 16841083 Cells expressing only CD80 or CIITA were not as effective as antitumor vaccines in preventing the development of spontaneous tumors.
1631 16841083 The HER-2/Neu oncogene has been implicated in human and mouse breast cancer.
1632 16841083 We have expressed the class II transactivator (CIITA) and/or the costimulatory molecule CD80 (B7.1) in a mammary carcinoma cell line (MCNeuA) derived from these mice.
1633 16841083 When injected into MMTV-neu mice, tumor cells expressing CD80 or CD80 and CIITA, were rejected completely.
1634 16841083 Cells expressing only CD80 or CIITA were not as effective as antitumor vaccines in preventing the development of spontaneous tumors.
1635 16842756 Our results showed that LMP2 gene transfer did not alter the typical morphology of mature DC, and the representative phenotypes of mature DC (CD80, CD83, and CD86) were highly expressed in rAd-LMP2-DCs.
1636 16842756 In addition, phenotypic analysis demonstrated that the LMP2-specific CTLs consisted of both CD4(+) and CD8(+) T cells.
1637 16870312 This activation induces the production of tumor necrosis factor alpha (TNF-alpha), an up-regulation of the surface molecules CD83, CD80, CD86, HLA-DR and HLA-I and increases the T cell stimulatory capacity of DCs.
1638 16917781 BMDCs activated with PLPs up-regulated CD40, CD80, CD86 and major histocompatibility complex (MHC) class II surface markers and produced proinflammatory cytokines.
1639 16917781 Chimeric PLPs [expressing the ovalbumin (OVA)-peptides OVA(257-264) or OVA(323-339)], but not wildtype PLPs, activated OVA-specific CD8 T cells and OVA-specific CD4 T cells, respectively, indicating both MHC class I and II presentation of the peptides by antigen-presenting cells.
1640 16960116 Treatment of human monocytes with S. gordonii but not latex beads induced a clear up-regulation of CD83, CD40, CD80, and CD54 and the down-regulation of CD14.
1641 16960116 Furthermore, bacterial treatment stimulated an increased expression of Toll-like receptor 5 (TLR5), TLR6, and TLR7, production of the proinflammatory cytokines tumor necrosis factor alpha and interleukin 1 beta, and reduction of the phagocytic activity.
1642 16971487 Here, we describe an approach to enhance immunogenicity that involves the activation of NF-kappaB by the transgenic expression of an intracellular signaling molecule, NF-kappaB-inducing kinase (NIK).
1643 16971487 In vitro, NIK increases dendritic cell antigen presentation in allogeneic and antigen-specific T cell proliferation assays by potently activating NF-kappaB and consequently up-regulating the expression of cytokines (TNF-alpha, IL-6, IL-12, IL-15, and IL-18), chemokines [IL-8, RANTES (regulated on activation, normal T cell expressed and secreted), macrophage inflammatory protein-1alpha, monocyte chemoattractant protein-1, and monocyte chemoattractant protein-3], MHC antigen-presenting molecules (class I and II), and costimulatory molecules (CD80 and CD86).
1644 16971487 In vivo, NIK enhances immune responses against a vector-encoded antigen and shifts them toward a T helper 1 immune response with increased IgG2a levels, T cell proliferation, IFN-gamma production, and cytotoxic T lymphocyte responses more potently than complete Freund's adjuvant, a very efficacious T helper 1-inducing adjuvant.
1645 16971487 These findings define NIK, and possibly other inducers of NF-kappaB activation, as a potent adjuvant strategy that offers great potential for genetic vaccine development.
1646 16982886 Ligation of CD80 is critical for high-level CD25 expression on CD8+ T lymphocytes.
1647 16982886 CD80 and CD86 have been shown to play a critical role in the optimal activation of T cells.
1648 16982886 Although these two molecules bind the same ligand, CD28, the question of whether CD80 and CD86 provide unique signals or serve redundant roles remains controversial.
1649 16982886 Previous studies have suggested that CD80 binding to CD28 may be superior to CD86 for the activation of naive CD8+ T cells.
1650 16982886 Our study demonstrates a previously unappreciated role for CD80, its superiority over CD86 in promoting CD25 expression, increasing both the number of cells that express CD25 and the level expressed on a per cell basis.
1651 16982886 These findings provide new insights into the role of CD80 vs CD86 and have important implications for the design of vaccines and immunotherapeutics aimed at the generation of a robust CD8+ T cell response in vivo.
1652 16982886 Ligation of CD80 is critical for high-level CD25 expression on CD8+ T lymphocytes.
1653 16982886 CD80 and CD86 have been shown to play a critical role in the optimal activation of T cells.
1654 16982886 Although these two molecules bind the same ligand, CD28, the question of whether CD80 and CD86 provide unique signals or serve redundant roles remains controversial.
1655 16982886 Previous studies have suggested that CD80 binding to CD28 may be superior to CD86 for the activation of naive CD8+ T cells.
1656 16982886 Our study demonstrates a previously unappreciated role for CD80, its superiority over CD86 in promoting CD25 expression, increasing both the number of cells that express CD25 and the level expressed on a per cell basis.
1657 16982886 These findings provide new insights into the role of CD80 vs CD86 and have important implications for the design of vaccines and immunotherapeutics aimed at the generation of a robust CD8+ T cell response in vivo.
1658 16982886 Ligation of CD80 is critical for high-level CD25 expression on CD8+ T lymphocytes.
1659 16982886 CD80 and CD86 have been shown to play a critical role in the optimal activation of T cells.
1660 16982886 Although these two molecules bind the same ligand, CD28, the question of whether CD80 and CD86 provide unique signals or serve redundant roles remains controversial.
1661 16982886 Previous studies have suggested that CD80 binding to CD28 may be superior to CD86 for the activation of naive CD8+ T cells.
1662 16982886 Our study demonstrates a previously unappreciated role for CD80, its superiority over CD86 in promoting CD25 expression, increasing both the number of cells that express CD25 and the level expressed on a per cell basis.
1663 16982886 These findings provide new insights into the role of CD80 vs CD86 and have important implications for the design of vaccines and immunotherapeutics aimed at the generation of a robust CD8+ T cell response in vivo.
1664 16982886 Ligation of CD80 is critical for high-level CD25 expression on CD8+ T lymphocytes.
1665 16982886 CD80 and CD86 have been shown to play a critical role in the optimal activation of T cells.
1666 16982886 Although these two molecules bind the same ligand, CD28, the question of whether CD80 and CD86 provide unique signals or serve redundant roles remains controversial.
1667 16982886 Previous studies have suggested that CD80 binding to CD28 may be superior to CD86 for the activation of naive CD8+ T cells.
1668 16982886 Our study demonstrates a previously unappreciated role for CD80, its superiority over CD86 in promoting CD25 expression, increasing both the number of cells that express CD25 and the level expressed on a per cell basis.
1669 16982886 These findings provide new insights into the role of CD80 vs CD86 and have important implications for the design of vaccines and immunotherapeutics aimed at the generation of a robust CD8+ T cell response in vivo.
1670 16982886 Ligation of CD80 is critical for high-level CD25 expression on CD8+ T lymphocytes.
1671 16982886 CD80 and CD86 have been shown to play a critical role in the optimal activation of T cells.
1672 16982886 Although these two molecules bind the same ligand, CD28, the question of whether CD80 and CD86 provide unique signals or serve redundant roles remains controversial.
1673 16982886 Previous studies have suggested that CD80 binding to CD28 may be superior to CD86 for the activation of naive CD8+ T cells.
1674 16982886 Our study demonstrates a previously unappreciated role for CD80, its superiority over CD86 in promoting CD25 expression, increasing both the number of cells that express CD25 and the level expressed on a per cell basis.
1675 16982886 These findings provide new insights into the role of CD80 vs CD86 and have important implications for the design of vaccines and immunotherapeutics aimed at the generation of a robust CD8+ T cell response in vivo.
1676 16982886 Ligation of CD80 is critical for high-level CD25 expression on CD8+ T lymphocytes.
1677 16982886 CD80 and CD86 have been shown to play a critical role in the optimal activation of T cells.
1678 16982886 Although these two molecules bind the same ligand, CD28, the question of whether CD80 and CD86 provide unique signals or serve redundant roles remains controversial.
1679 16982886 Previous studies have suggested that CD80 binding to CD28 may be superior to CD86 for the activation of naive CD8+ T cells.
1680 16982886 Our study demonstrates a previously unappreciated role for CD80, its superiority over CD86 in promoting CD25 expression, increasing both the number of cells that express CD25 and the level expressed on a per cell basis.
1681 16982886 These findings provide new insights into the role of CD80 vs CD86 and have important implications for the design of vaccines and immunotherapeutics aimed at the generation of a robust CD8+ T cell response in vivo.
1682 17073943 In this study, we showed that ovalbumin (OVA) protein-pulsed DC (DC(OVA))-derived EXO (EXO(OVA)) displayed MHC class I-OVA I peptide (pMHC I) complexes, CD11c, CD40, CD80, CCR7, DEC205, Toll-like receptor 4 (TLR4), TLR9, MyD88 and DC-SIGN molecules, but at a lower level than DC(OVA).
1683 17073943 EXO(OVA) can be taken up by DC through LFA-1/CD54 and C-type lectin/mannose (glucosamine)-rich C-type lectin receptor (CLR) interactions.
1684 17073943 Mature DC pulsed with EXO(OVA), which were referred to as mDC(EXO), expressed a higher level of pMHC I, MHC II, and costimulatory CD40, CD54 and CD80 than DC(OVA).
1685 17073943 In this study, we showed that ovalbumin (OVA) protein-pulsed DC (DC(OVA))-derived EXO (EXO(OVA)) displayed MHC class I-OVA I peptide (pMHC I) complexes, CD11c, CD40, CD80, CCR7, DEC205, Toll-like receptor 4 (TLR4), TLR9, MyD88 and DC-SIGN molecules, but at a lower level than DC(OVA).
1686 17073943 EXO(OVA) can be taken up by DC through LFA-1/CD54 and C-type lectin/mannose (glucosamine)-rich C-type lectin receptor (CLR) interactions.
1687 17073943 Mature DC pulsed with EXO(OVA), which were referred to as mDC(EXO), expressed a higher level of pMHC I, MHC II, and costimulatory CD40, CD54 and CD80 than DC(OVA).
1688 17118442 Here, the presence of the ingested MP did not affect the MoDC maturation in terms of expression of the surface markers CD80, CD83, CD86, HLA-DR and MMR, irrespective of the MP surface coating.
1689 17118442 MP-loaded and subsequently matured MoDC expressed high levels of the chemokine receptor CCR7, whose functional activity was evidenced by the migration of MoDC towards CCL21, irrespective of the presence of ingested MP.
1690 17118497 Specifically, the co-culture with activated Vgamma9Vdelta2 T cells with BCG-infected DC resulted in a significant increase of the expression of CD80, CD86, CD40 and CD25 molecules on DC.
1691 17118497 Moreover, DC were able to produce increased levels of TNF-alpha and synthesize ex novo IL-15 without altering the IL-10/IL-12 immunoregulatory pathway.
1692 17118982 Only LT-IIa and LT-IIa(T14S), however, enhanced expression of major histocompatibility complex class II and the costimulatory molecules CD40, CD80, and CD86 on splenic dendritic cells.
1693 17142751 We have shown that the CpG-C ISS-ODN C274 stimulates macaque blood dendritic cells (DCs) and B cells and augments SIV-specific IFN-gamma responses in vitro.
1694 17142751 This was particularly apparent at the level of CD80 (less so CD86) expression by CD123(+) plasmacytoid DCs and was further boosted in the presence of additional C274 in vitro.
1695 17142751 This was more pronounced when cells were exposed to additional stimuli in vitro, producing IFN-alpha, IL-3, IL-6, IL-12, TNF-alpha, CCL2, CCL3, CCL5, and CXCL8.
1696 17142751 Elevated IFN-alpha, CCL2, and CCL5 were also detected in the plasma after C274 injection.
1697 17198083 DC pulsed with P. carinii did not demonstrate increased expression of the cell surface markers MHC II, CD40, CD54, CD80 (B7.1), and CD86 (B7.2).
1698 17198083 The release of interleukin (IL)-4 was increased, but there was no increase in the release of interleukin (IL)-12p40, IL-10, tumor necrosis factor-alpha, IL-6, and nitrite compared with naive DC.
1699 17198083 In vivo administration of DC pulsed with P. carinii induced a P. carinii-specific response, generating CD4+ cells that proliferated and released IL-4, but not interferon-gamma, in response to P. carinii-pulsed DC in vitro.
1700 17219364 FACS analysis demonstrated an up-regulation of DC maturation markers CD80, CD86, CD40 and MHC class II upon exposure to Gal-lectin.
1701 17219364 The activation of DC by Gal-lectin was mediated by MAPK and NF-kappaB.
1702 17234309 Murine bone-marrow derived dendritic cells (BMDCs) cultured in the presence of ALVAC secreted high levels of the chemokines CXCL10 and CCL2 and up-regulated expression of the maturation markers CD40, CD80 and CD86.
1703 17255244 In CYD-infected DCs, we observed an up-regulation of HLA-DR, CD80, CD86, and CD83.
1704 17255244 Cells exposed to CYD secreted type I interferons, monocyte chemoattractant protein 1 (MCP-1)/CC chemokine ligand 2 (CCL-2), interleukin-6 (IL-6), and low amounts of tumor necrosis factor-alpha (TNF-alpha), but no IL-10, IL-12, or IL-1alpha.
1705 17255244 Parental dengue viruses induced a similar array of cytokines, but more TNF-alpha, less IL-6, and less MCP-1/CCL-2 than induced by CYD.
1706 17275522 DC were propagated from C3H (H2(k)) bone marrow (BM) using granulocyte-macrophage colony stimulating factor (GM-CSF) and interleukin-4 (IL-4).
1707 17275522 Expression of major histocompatibility complex (MHC) class I and II was not affected, while CD40, CD80, and CD86 costimulatory molecules on DC were significantly inhibited by treatment with TGF-beta.
1708 17275522 This observation correlated with reduced interferon-gamma (IFN-gamma) and increased IL-10 production.
1709 17277122 Human immature dendritic cells (DCs) cultured in the presence of c-di-GMP showed increased expression of costimulatory molecules CD80/CD86 and maturation marker CD83, increased MHC class II and cytokines and chemokines such as IL-12, IFN-gamma, IL-8, MCP-1, IFN-gamma-inducible protein 10, and RANTES, and altered expression of chemokine receptors including CCR1, CCR7, and CXCR4. c-di-GMP-matured DCs demonstrated enhanced T cell stimulatory activity. c-di-GMP activated p38 MAPK in human DCs and ERK phosphorylation in human macrophages. c-di-GMP is stable in human serum.
1710 17285277 Leukemic cells were stimulated (or not) with CD40L and IL-4.
1711 17285277 Elements of the antigen-processing machinery (MB1, LMP2, LMP7, LMP10, TAP1, TAP2, calnexin, calreticulin, tapasin, ERp57, zeta, delta) were determined by real-time PCR technique.
1712 17285277 The expression of important costimulatory and adhesion molecules considered as DC markers (CD40, CD54, CD80, CD83, CD86) were determined at the mRNA (PCR) and protein (flow cytometry) levels.
1713 17302734 The liposomes did not have an effect on the maturation of murine bone-marrow-derived dendritic cells (BM-DCs) related to the surface expression of major histocompatibility complex (MHC) class II, CD40, CD80 and CD86.
1714 17302859 The hybrid cells stimulated allogeneic and autologous T-cell proliferative responses in vitro to a considerably greater degree than their respective parent myeloma plasma cells, and directly activated both CD4+ and CD8+ T-cell responses.
1715 17302859 The enhanced T-cell stimulation correlated with expression of CD80 on the hybrid cells, and was inhibited by CTLA4-Ig fusion protein.
1716 17342333 Supplementation with both anti-CD40 and OK432 resulted in induction of activated DCs with higher surface expression of CD80, CD83, CD86 and major histocompatibility complex class II antigens, compared with other mature DCs that were induced by the combination of anti-CD40 with tumor necrosis factor-alpha or lipopolysaccharide.
1717 17371857 Markedly different effects on the immune system were observed; an IS901-negative strain (WAg 207) induced significant up-regulation of cell surface activation markers (major histocompatibility complex II, CD80, and CD86) on in vitro-derived dendritic cells and induced the release of proinflammatory monokines (interleukin-1beta [IL-1beta], IL-6, and tumor necrosis factor alpha) in dendritic cell-macrophage cocultures following direct in vitro contact of cells with bacteria.
1718 17390073 The JAWS II/IL-12 cells produced approximately 9-18 ng IL-12 protein/ml/5 x 10(5) cells/48 h and displayed an increased CD80 and CD86 expression as well as major histocompatibility complex antigen up-regulation.
1719 17390073 The JAWS II/IL-12 cell vaccination of MC38 tumor-bearing mice was accompanied by an increased percentage of IFN-gamma-producing CD8+ spleen cells.
1720 17459080 S. typhimurium CM induced potent tumour necrosis factor (TNF)-alpha responses from DCs accompanied by significant up-regulation of CD80 and CD86 expression.
1721 17467840 Maturation markers (CD80, CD86, MHC Class II molecules) showed significantly enhanced expression on DC pulsed with high density R8-modified liposomes containing mycobacterial CW.
1722 17467840 Moreover, R8-modified liposomes with mycobacterial CW incorporated induced production of IL-12 p40 by DC, at levels similar to those produced by lipopolysaccharide-pulsed DC.
1723 17473921 Tumor lysate-pulsed DCs were rendered TGF-beta insensitive by dominant-negative TGF-beta type II receptor (TbetaRIIDN), leading to the blockade of TGF-beta signals to members of the Smad family, which are the principal cytoplasmic intermediates involved in the transduction of signals from TGF-beta receptors to the nucleus.
1724 17473921 Phosphorylated Smad-2 was undetectable and expression of surface co-stimulatory molecules (CD80/CD86) were upregulated in TbetaRIIDN DCs after antigen and TGF-beta1 stimulation.
1725 17473921 Vaccination of C57BL/6 tumor-bearing mice with the TbetaRIIDN DC vaccine induced potent tumor-specific cytotoxic T lymphocyte responses against TRAMP-C2 tumors, increased serum IFN-gamma and IL-12 level, inhibited tumor growth and increased mouse survival.
1726 17484805 In addition, the study demonstrates that PIKA promotes the maturation of bone marrow-derived dendritic cells (BMDCs) including up-regulation of the co-stimulatory molecules CD80, CD86 and CD40, and the induction of cytokines such as IL-12p70, IL-12p40 and IL-6.
1727 17485153 Both aluminum-containing adjuvants significantly increased the expression of CD86 on DCs but only aluminum hydroxide adjuvant also induced moderate expression of CD80.
1728 17485153 Aluminum-containing adjuvants stimulated the release of IL-1beta and IL-18 from DCs via caspase-1 activation.
1729 17485153 In contrast, DCs incubated with aluminum/OVA activated CD4(+) T cells to secrete IL-4 and IL-5 as well as IFN-gamma.
1730 17485153 Addition of neutralizing anti-IL-1beta antibodies decreased IL-5 production and addition of anti-IL-18 antibodies decreased both IL-4 and IL-5 production.
1731 17485153 Inhibition of IL-1beta and IL-18 secretion by DCs via inhibition of caspase-1 also led to a marked decrease of IL-4 and IL-5 by CD4(+) T cells.
1732 17485153 These results indicate that aluminum-containing adjuvants activate DCs and influence their ability to direct T(H)1 and T(H)2 responses through the secretion of IL-1beta and IL-18.
1733 17499400 In this study, we demonstrate that the co-administration of plasmid-encoded GM-CSF and CD80/CD86 with a novel ESAT-6:CFP10 DNA vaccine against bovine tuberculosis enhances antigen-specific cell-mediated immune responses.
1734 17499400 ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA vaccinated animals exhibited significant (p<0.01) antigen-specific proliferative responses compared to other DNA vaccinates.
1735 17499400 Increased expression (p< or =0.05) of CD25 on PBMC from ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA vaccinates was associated with increased proliferation, as compared to control DNA vaccinates.
1736 17499400 However, the greatest increase in IFN-gamma producing cells was from animals vaccinated with ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA.
1737 17499400 In a low-dose aerosol challenge trial, calves vaccinated as neonates with Mycobacterium bovis BCG and ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA exhibited decreased lesion severity in the lung and lung-associated lymph nodes following viruluent M. bovis challenge compared to other vaccinated animals or non-vaccinated controls.
1738 17499400 In this study, we demonstrate that the co-administration of plasmid-encoded GM-CSF and CD80/CD86 with a novel ESAT-6:CFP10 DNA vaccine against bovine tuberculosis enhances antigen-specific cell-mediated immune responses.
1739 17499400 ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA vaccinated animals exhibited significant (p<0.01) antigen-specific proliferative responses compared to other DNA vaccinates.
1740 17499400 Increased expression (p< or =0.05) of CD25 on PBMC from ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA vaccinates was associated with increased proliferation, as compared to control DNA vaccinates.
1741 17499400 However, the greatest increase in IFN-gamma producing cells was from animals vaccinated with ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA.
1742 17499400 In a low-dose aerosol challenge trial, calves vaccinated as neonates with Mycobacterium bovis BCG and ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA exhibited decreased lesion severity in the lung and lung-associated lymph nodes following viruluent M. bovis challenge compared to other vaccinated animals or non-vaccinated controls.
1743 17499400 In this study, we demonstrate that the co-administration of plasmid-encoded GM-CSF and CD80/CD86 with a novel ESAT-6:CFP10 DNA vaccine against bovine tuberculosis enhances antigen-specific cell-mediated immune responses.
1744 17499400 ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA vaccinated animals exhibited significant (p<0.01) antigen-specific proliferative responses compared to other DNA vaccinates.
1745 17499400 Increased expression (p< or =0.05) of CD25 on PBMC from ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA vaccinates was associated with increased proliferation, as compared to control DNA vaccinates.
1746 17499400 However, the greatest increase in IFN-gamma producing cells was from animals vaccinated with ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA.
1747 17499400 In a low-dose aerosol challenge trial, calves vaccinated as neonates with Mycobacterium bovis BCG and ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA exhibited decreased lesion severity in the lung and lung-associated lymph nodes following viruluent M. bovis challenge compared to other vaccinated animals or non-vaccinated controls.
1748 17499400 In this study, we demonstrate that the co-administration of plasmid-encoded GM-CSF and CD80/CD86 with a novel ESAT-6:CFP10 DNA vaccine against bovine tuberculosis enhances antigen-specific cell-mediated immune responses.
1749 17499400 ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA vaccinated animals exhibited significant (p<0.01) antigen-specific proliferative responses compared to other DNA vaccinates.
1750 17499400 Increased expression (p< or =0.05) of CD25 on PBMC from ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA vaccinates was associated with increased proliferation, as compared to control DNA vaccinates.
1751 17499400 However, the greatest increase in IFN-gamma producing cells was from animals vaccinated with ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA.
1752 17499400 In a low-dose aerosol challenge trial, calves vaccinated as neonates with Mycobacterium bovis BCG and ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA exhibited decreased lesion severity in the lung and lung-associated lymph nodes following viruluent M. bovis challenge compared to other vaccinated animals or non-vaccinated controls.
1753 17499400 In this study, we demonstrate that the co-administration of plasmid-encoded GM-CSF and CD80/CD86 with a novel ESAT-6:CFP10 DNA vaccine against bovine tuberculosis enhances antigen-specific cell-mediated immune responses.
1754 17499400 ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA vaccinated animals exhibited significant (p<0.01) antigen-specific proliferative responses compared to other DNA vaccinates.
1755 17499400 Increased expression (p< or =0.05) of CD25 on PBMC from ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA vaccinates was associated with increased proliferation, as compared to control DNA vaccinates.
1756 17499400 However, the greatest increase in IFN-gamma producing cells was from animals vaccinated with ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA.
1757 17499400 In a low-dose aerosol challenge trial, calves vaccinated as neonates with Mycobacterium bovis BCG and ESAT-6:CFP10+GM-CSF+CD80/CD86 DNA exhibited decreased lesion severity in the lung and lung-associated lymph nodes following viruluent M. bovis challenge compared to other vaccinated animals or non-vaccinated controls.
1758 17532057 Human peripheral blood CD14(+) monocytes were purified by using a magnetic separation column and cultured with GM-CSF and IL-4 to differentiate into immature DCs (iDCs).
1759 17532057 In the presence of Talpha1, iDC surface markers CD40, CD80, MHC class I and class II molecules were significantly upregulated as measured by flow cytemotry analysis.
1760 17532057 Thus, Talpha1 significantly enhances DC differentiation, activation, and functions from human peripheral blood CD14(+) monocytes possibly through a mechanism of the activation of p38 MAPK and NFkappaB pathways.
1761 17544551 Co-immunisation with DNA encoding RANK/RANKL or 4-1BBL costimulatory molecules does not enhance effector or memory CTL responses afforded by immunisation with a tumour antigen-encoding DNA vaccine.
1762 17544551 This 'second signalling' occurs through the B7 molecules CD80/86 expressed by DCs, and importantly through members of the TNF ligand/TNF receptor superfamilies.
1763 17544551 We have previously shown that co-expression of RANK/RANKL or 41BB-L in addition to tumour antigen in dendritic cells augmented cognate effector and memory tumour antigen-directed cytotoxic T cell responses when the DCs were used to immunise mice.
1764 17548610 Hsp90 inhibition significantly decreased cell surface expression of costimulatory (CD40, CD80, CD86), maturation (CD83), and MHC (HLA-A, B, C and HLA-DP, DQ, DR) markers in immature DC and mature DC and was associated with down-regulation of both RNA and intracellular protein expression.
1765 17626150 Nonspecific CD4(+) T cells with uptake of antigen-specific dendritic cell-released exosomes stimulate antigen-specific CD8(+) CTL responses and long-term T cell memory.
1766 17626150 The active EXO-uptaken CD4(+) T cells (aT(EXO)), expressing acquired exosomal MHC I/OVA I peptide (pMHC I) complexes and costimulatory CD40 and CD80 molecules, can act as APCs capable of stimulating OVA-specific CD8(+) T cell proliferation in vitro and in vivo and inducing efficient CD4(+) Th cell-independent CD8(+) CTL responses in vivo.
1767 17626150 The EXO(OVA)-uptaken CD4(+) aT(EXO) cell vaccine induces much more efficient CD8(+) T cell responses and immunity against challenge of OVA-transfected BL6-10 melanoma cells expressing OVA in wild-type C57BL/6 mice than EXO(OVA).
1768 17626150 The in vivo stimulatory effect of the CD4(+) aT(EXO) cell to CD8(+) T cell responses is mediated and targeted by its CD40 ligand signaling/acquired exosomal CD80 and pMHC I complexes, respectively.
1769 17626150 In addition, CD4(+) aT(EXO) vaccine stimulates a long-term, OVA-specific CD8(+) T cell memory.
1770 17626150 Nonspecific CD4(+) T cells with uptake of antigen-specific dendritic cell-released exosomes stimulate antigen-specific CD8(+) CTL responses and long-term T cell memory.
1771 17626150 The active EXO-uptaken CD4(+) T cells (aT(EXO)), expressing acquired exosomal MHC I/OVA I peptide (pMHC I) complexes and costimulatory CD40 and CD80 molecules, can act as APCs capable of stimulating OVA-specific CD8(+) T cell proliferation in vitro and in vivo and inducing efficient CD4(+) Th cell-independent CD8(+) CTL responses in vivo.
1772 17626150 The EXO(OVA)-uptaken CD4(+) aT(EXO) cell vaccine induces much more efficient CD8(+) T cell responses and immunity against challenge of OVA-transfected BL6-10 melanoma cells expressing OVA in wild-type C57BL/6 mice than EXO(OVA).
1773 17626150 The in vivo stimulatory effect of the CD4(+) aT(EXO) cell to CD8(+) T cell responses is mediated and targeted by its CD40 ligand signaling/acquired exosomal CD80 and pMHC I complexes, respectively.
1774 17626150 In addition, CD4(+) aT(EXO) vaccine stimulates a long-term, OVA-specific CD8(+) T cell memory.
1775 17629367 Role of CD80 and CD86 in host immune responses to the recombinant hemagglutinin domain of Porphyromonas gingivalis gingipain and in the adjuvanticity of cholera toxin B and monophosphoryl lipid A.
1776 17629367 The purpose of the present study was to determine the functional role of CD80 and CD86 in mediating systemic and mucosal immune responses to the recombinant HArep derived from the gingipain Kgp (Kgp-HArep) after intranasal (i.n.) immunization.
1777 17629367 The in vivo functional roles of CD80 and CD86 were assessed in C57BL/6 wild-type (wt), CD80(-/-), CD86(-/-) and CD80/CD86(-/-) mice following intranasal immunization with Kgp-HArep with or without adjuvant.
1778 17629367 Compared to wt and CD80(-/-) mice, CD86(-/-) mice had reduced serum IgG anti-Kgp-HArep responses following the second immunization with antigen alone or antigen+CTB, whereas similar levels of serum IgG anti-Kgp-HArep antibody activity were observed in wt, CD80(-/-) and CD86(-/-) mice immunized with antigen+MPL.
1779 17629367 Analysis of the serum IgG subclass responses revealed that CD80 influenced both Th1- and Th2-like IgG subclass responses, while CD86 preferentially influenced a Th2-associated IgG subclass response to Kgp-HArep.
1780 17629367 In vitro stimulation of murine bone marrow-derived dendritic cells with Kgp-HArep, CTB and MPL resulted in an up-regulation of CD80 and especially CD86 expression.
1781 17629367 Taken together, our results demonstrate that CD80 and CD86 can play distinct as well as redundant roles in mediating a systemic immune response and that CD86 plays a unique role in mediating a mucosal response to Kgp-HArep following immunization via the i.n. route alone or with adjuvant.
1782 17629367 Role of CD80 and CD86 in host immune responses to the recombinant hemagglutinin domain of Porphyromonas gingivalis gingipain and in the adjuvanticity of cholera toxin B and monophosphoryl lipid A.
1783 17629367 The purpose of the present study was to determine the functional role of CD80 and CD86 in mediating systemic and mucosal immune responses to the recombinant HArep derived from the gingipain Kgp (Kgp-HArep) after intranasal (i.n.) immunization.
1784 17629367 The in vivo functional roles of CD80 and CD86 were assessed in C57BL/6 wild-type (wt), CD80(-/-), CD86(-/-) and CD80/CD86(-/-) mice following intranasal immunization with Kgp-HArep with or without adjuvant.
1785 17629367 Compared to wt and CD80(-/-) mice, CD86(-/-) mice had reduced serum IgG anti-Kgp-HArep responses following the second immunization with antigen alone or antigen+CTB, whereas similar levels of serum IgG anti-Kgp-HArep antibody activity were observed in wt, CD80(-/-) and CD86(-/-) mice immunized with antigen+MPL.
1786 17629367 Analysis of the serum IgG subclass responses revealed that CD80 influenced both Th1- and Th2-like IgG subclass responses, while CD86 preferentially influenced a Th2-associated IgG subclass response to Kgp-HArep.
1787 17629367 In vitro stimulation of murine bone marrow-derived dendritic cells with Kgp-HArep, CTB and MPL resulted in an up-regulation of CD80 and especially CD86 expression.
1788 17629367 Taken together, our results demonstrate that CD80 and CD86 can play distinct as well as redundant roles in mediating a systemic immune response and that CD86 plays a unique role in mediating a mucosal response to Kgp-HArep following immunization via the i.n. route alone or with adjuvant.
1789 17629367 Role of CD80 and CD86 in host immune responses to the recombinant hemagglutinin domain of Porphyromonas gingivalis gingipain and in the adjuvanticity of cholera toxin B and monophosphoryl lipid A.
1790 17629367 The purpose of the present study was to determine the functional role of CD80 and CD86 in mediating systemic and mucosal immune responses to the recombinant HArep derived from the gingipain Kgp (Kgp-HArep) after intranasal (i.n.) immunization.
1791 17629367 The in vivo functional roles of CD80 and CD86 were assessed in C57BL/6 wild-type (wt), CD80(-/-), CD86(-/-) and CD80/CD86(-/-) mice following intranasal immunization with Kgp-HArep with or without adjuvant.
1792 17629367 Compared to wt and CD80(-/-) mice, CD86(-/-) mice had reduced serum IgG anti-Kgp-HArep responses following the second immunization with antigen alone or antigen+CTB, whereas similar levels of serum IgG anti-Kgp-HArep antibody activity were observed in wt, CD80(-/-) and CD86(-/-) mice immunized with antigen+MPL.
1793 17629367 Analysis of the serum IgG subclass responses revealed that CD80 influenced both Th1- and Th2-like IgG subclass responses, while CD86 preferentially influenced a Th2-associated IgG subclass response to Kgp-HArep.
1794 17629367 In vitro stimulation of murine bone marrow-derived dendritic cells with Kgp-HArep, CTB and MPL resulted in an up-regulation of CD80 and especially CD86 expression.
1795 17629367 Taken together, our results demonstrate that CD80 and CD86 can play distinct as well as redundant roles in mediating a systemic immune response and that CD86 plays a unique role in mediating a mucosal response to Kgp-HArep following immunization via the i.n. route alone or with adjuvant.
1796 17629367 Role of CD80 and CD86 in host immune responses to the recombinant hemagglutinin domain of Porphyromonas gingivalis gingipain and in the adjuvanticity of cholera toxin B and monophosphoryl lipid A.
1797 17629367 The purpose of the present study was to determine the functional role of CD80 and CD86 in mediating systemic and mucosal immune responses to the recombinant HArep derived from the gingipain Kgp (Kgp-HArep) after intranasal (i.n.) immunization.
1798 17629367 The in vivo functional roles of CD80 and CD86 were assessed in C57BL/6 wild-type (wt), CD80(-/-), CD86(-/-) and CD80/CD86(-/-) mice following intranasal immunization with Kgp-HArep with or without adjuvant.
1799 17629367 Compared to wt and CD80(-/-) mice, CD86(-/-) mice had reduced serum IgG anti-Kgp-HArep responses following the second immunization with antigen alone or antigen+CTB, whereas similar levels of serum IgG anti-Kgp-HArep antibody activity were observed in wt, CD80(-/-) and CD86(-/-) mice immunized with antigen+MPL.
1800 17629367 Analysis of the serum IgG subclass responses revealed that CD80 influenced both Th1- and Th2-like IgG subclass responses, while CD86 preferentially influenced a Th2-associated IgG subclass response to Kgp-HArep.
1801 17629367 In vitro stimulation of murine bone marrow-derived dendritic cells with Kgp-HArep, CTB and MPL resulted in an up-regulation of CD80 and especially CD86 expression.
1802 17629367 Taken together, our results demonstrate that CD80 and CD86 can play distinct as well as redundant roles in mediating a systemic immune response and that CD86 plays a unique role in mediating a mucosal response to Kgp-HArep following immunization via the i.n. route alone or with adjuvant.
1803 17629367 Role of CD80 and CD86 in host immune responses to the recombinant hemagglutinin domain of Porphyromonas gingivalis gingipain and in the adjuvanticity of cholera toxin B and monophosphoryl lipid A.
1804 17629367 The purpose of the present study was to determine the functional role of CD80 and CD86 in mediating systemic and mucosal immune responses to the recombinant HArep derived from the gingipain Kgp (Kgp-HArep) after intranasal (i.n.) immunization.
1805 17629367 The in vivo functional roles of CD80 and CD86 were assessed in C57BL/6 wild-type (wt), CD80(-/-), CD86(-/-) and CD80/CD86(-/-) mice following intranasal immunization with Kgp-HArep with or without adjuvant.
1806 17629367 Compared to wt and CD80(-/-) mice, CD86(-/-) mice had reduced serum IgG anti-Kgp-HArep responses following the second immunization with antigen alone or antigen+CTB, whereas similar levels of serum IgG anti-Kgp-HArep antibody activity were observed in wt, CD80(-/-) and CD86(-/-) mice immunized with antigen+MPL.
1807 17629367 Analysis of the serum IgG subclass responses revealed that CD80 influenced both Th1- and Th2-like IgG subclass responses, while CD86 preferentially influenced a Th2-associated IgG subclass response to Kgp-HArep.
1808 17629367 In vitro stimulation of murine bone marrow-derived dendritic cells with Kgp-HArep, CTB and MPL resulted in an up-regulation of CD80 and especially CD86 expression.
1809 17629367 Taken together, our results demonstrate that CD80 and CD86 can play distinct as well as redundant roles in mediating a systemic immune response and that CD86 plays a unique role in mediating a mucosal response to Kgp-HArep following immunization via the i.n. route alone or with adjuvant.
1810 17629367 Role of CD80 and CD86 in host immune responses to the recombinant hemagglutinin domain of Porphyromonas gingivalis gingipain and in the adjuvanticity of cholera toxin B and monophosphoryl lipid A.
1811 17629367 The purpose of the present study was to determine the functional role of CD80 and CD86 in mediating systemic and mucosal immune responses to the recombinant HArep derived from the gingipain Kgp (Kgp-HArep) after intranasal (i.n.) immunization.
1812 17629367 The in vivo functional roles of CD80 and CD86 were assessed in C57BL/6 wild-type (wt), CD80(-/-), CD86(-/-) and CD80/CD86(-/-) mice following intranasal immunization with Kgp-HArep with or without adjuvant.
1813 17629367 Compared to wt and CD80(-/-) mice, CD86(-/-) mice had reduced serum IgG anti-Kgp-HArep responses following the second immunization with antigen alone or antigen+CTB, whereas similar levels of serum IgG anti-Kgp-HArep antibody activity were observed in wt, CD80(-/-) and CD86(-/-) mice immunized with antigen+MPL.
1814 17629367 Analysis of the serum IgG subclass responses revealed that CD80 influenced both Th1- and Th2-like IgG subclass responses, while CD86 preferentially influenced a Th2-associated IgG subclass response to Kgp-HArep.
1815 17629367 In vitro stimulation of murine bone marrow-derived dendritic cells with Kgp-HArep, CTB and MPL resulted in an up-regulation of CD80 and especially CD86 expression.
1816 17629367 Taken together, our results demonstrate that CD80 and CD86 can play distinct as well as redundant roles in mediating a systemic immune response and that CD86 plays a unique role in mediating a mucosal response to Kgp-HArep following immunization via the i.n. route alone or with adjuvant.
1817 17629367 Role of CD80 and CD86 in host immune responses to the recombinant hemagglutinin domain of Porphyromonas gingivalis gingipain and in the adjuvanticity of cholera toxin B and monophosphoryl lipid A.
1818 17629367 The purpose of the present study was to determine the functional role of CD80 and CD86 in mediating systemic and mucosal immune responses to the recombinant HArep derived from the gingipain Kgp (Kgp-HArep) after intranasal (i.n.) immunization.
1819 17629367 The in vivo functional roles of CD80 and CD86 were assessed in C57BL/6 wild-type (wt), CD80(-/-), CD86(-/-) and CD80/CD86(-/-) mice following intranasal immunization with Kgp-HArep with or without adjuvant.
1820 17629367 Compared to wt and CD80(-/-) mice, CD86(-/-) mice had reduced serum IgG anti-Kgp-HArep responses following the second immunization with antigen alone or antigen+CTB, whereas similar levels of serum IgG anti-Kgp-HArep antibody activity were observed in wt, CD80(-/-) and CD86(-/-) mice immunized with antigen+MPL.
1821 17629367 Analysis of the serum IgG subclass responses revealed that CD80 influenced both Th1- and Th2-like IgG subclass responses, while CD86 preferentially influenced a Th2-associated IgG subclass response to Kgp-HArep.
1822 17629367 In vitro stimulation of murine bone marrow-derived dendritic cells with Kgp-HArep, CTB and MPL resulted in an up-regulation of CD80 and especially CD86 expression.
1823 17629367 Taken together, our results demonstrate that CD80 and CD86 can play distinct as well as redundant roles in mediating a systemic immune response and that CD86 plays a unique role in mediating a mucosal response to Kgp-HArep following immunization via the i.n. route alone or with adjuvant.
1824 17707139 The same five melanoma epitopes, two co-stimulatory molecules CD80 and CD86, and the CD40 ligand, a marker known to play a crucial role in CTL generation and memory maintenance were encoded in a recombinant Vaccinia virus.
1825 17709486 Novel exosome-targeted CD4+ T cell vaccine counteracting CD4+25+ regulatory T cell-mediated immune suppression and stimulating efficient central memory CD8+ CTL responses.
1826 17709486 These EXO(OVA)-uptaken (targeted) CD4+ aT cells can stimulate CD8+ T cell proliferation and differentiation into central memory CD8+ CTLs and induce more efficient in vivo antitumor immunity and long-term CD8+ T cell memory responses than OVA-pulsed dendritic cells.
1827 17709486 They can also counteract CD4+25+ regulatory T cell-mediated suppression of in vitro CD8+ T cell proliferation and in vivo CD8+ CTL responses and antitumor immunity.
1828 17709486 We further elucidate that the EXO(OVA)-uptaken (targeted)CD4+ aT cell's stimulatory effect is mediated via its IL-2 secretion and acquired exosomal CD80 costimulation and is specifically delivered to CD8+ T cells in vivo via acquired exosomal peptide/MHC class I complexes.
1829 17713013 Intravenous administration of lymphoma cells induced suppression of DC differentiation and maturation assessed as a significant decrease of the IAb, CD80, CD86, CD11b, and CD11c expression on DCs and IAb on splenic APCs.
1830 17713013 Upregulation of APC differentiation was observed in animals after subcutaneous and intraperitoneal administration of lymphoma cells determined as increased expression of CD40 and CD86 in spleen APCs.
1831 17765973 We observed that KLH promotes the activation and maturation of DCs, as assessed by up-regulation of the surface expression of CD80, CD86, CD40, HLA-DR and CD83.
1832 17765973 Moreover, even if KLH stimulated the production of IL-12 and IL-10 by DCs, the final balance was clearly in favour of IL-12.
1833 17785828 After priming with IFN-gamma and stimulation with NadADelta351-405, mo-DCs strongly up-regulated maturation markers CD83, CD86, CD80, and HLA-DR, secreted moderate quantities of TNF-alpha, IL-6, and IL-8, and produced a slight, although significant, amount of IL-12p70.
1834 17785828 Costimulation of mo-DCs with NadADelta351-405 and the imidoazoquinoline drug R-848, believed to mimic bacterial RNA, increased CD86 in an additive way, but strongly synergized the secretion of IL-12p70, IL-1, IL-6, TNF-alpha, and MIP-1alpha, especially after IFN-gamma priming.
1835 17785828 CD86/CD80 overexpression correlated with the occupation of high-(kd approximately 80 nM) and low-(kd approximately 4 muM) affinity binding sites for NadADelta351-405.
1836 17785828 Alternatively, secretion of IL-12p70 and TNF-alpha, IL-6, and IL-8 corresponded to the occupation of high- or low-affinity receptors, respectively.
1837 17785828 Mo-DCs matured by IFN-gamma and NadADelta351-405 supported the proliferation of naive CD4+ T lymphocytes, inducing the differentiation of both IFN-gamma and IL-4 producing phenotypes.
1838 17785828 After priming with IFN-gamma and stimulation with NadADelta351-405, mo-DCs strongly up-regulated maturation markers CD83, CD86, CD80, and HLA-DR, secreted moderate quantities of TNF-alpha, IL-6, and IL-8, and produced a slight, although significant, amount of IL-12p70.
1839 17785828 Costimulation of mo-DCs with NadADelta351-405 and the imidoazoquinoline drug R-848, believed to mimic bacterial RNA, increased CD86 in an additive way, but strongly synergized the secretion of IL-12p70, IL-1, IL-6, TNF-alpha, and MIP-1alpha, especially after IFN-gamma priming.
1840 17785828 CD86/CD80 overexpression correlated with the occupation of high-(kd approximately 80 nM) and low-(kd approximately 4 muM) affinity binding sites for NadADelta351-405.
1841 17785828 Alternatively, secretion of IL-12p70 and TNF-alpha, IL-6, and IL-8 corresponded to the occupation of high- or low-affinity receptors, respectively.
1842 17785828 Mo-DCs matured by IFN-gamma and NadADelta351-405 supported the proliferation of naive CD4+ T lymphocytes, inducing the differentiation of both IFN-gamma and IL-4 producing phenotypes.
1843 17850587 Antigen (Ag)-presenting and co-stimulatory capacity of neonatal B-cells was evaluated by staining for major histocompatibility complex (MHC)II, CD80, CD86 and CD40.
1844 17850587 Spleen cells from mice receiving LT-K63 showed enhanced proliferation and interferon (IFN)-gamma, interleukin (IL)-4, IL-5 and IL-10 secretion upon TT stimulation, whereas cells from mice receiving CpG2006 could only enhance IL-10 secretion.
1845 17954761 Lymph node cell populations stimulated with ovalbumin had decreased CD5, CD21, and CD40 expression and increased B-B2, CD25, and CD80 expression on IgM+ cells.
1846 17954761 Stimulation of the same population with purified-protein derivative increased CD25 and CD80 expression on IgM+ cells.
1847 17954761 Lymph node cell populations stimulated with ovalbumin had decreased CD5, CD21, and CD40 expression and increased B-B2, CD25, and CD80 expression on IgM+ cells.
1848 17954761 Stimulation of the same population with purified-protein derivative increased CD25 and CD80 expression on IgM+ cells.
1849 17982663 We used imaging means to demonstrate the conservation of presentation molecules (MHC II, CD1a), co-stimulatory molecules (CD40, CD80, CD86), as well as tumour antigens (Her2/neu, cytokeratins) in optimised conditions.
1850 18006124 The requirement of CD80, CD86, and ICAM-1 on the ability of adjuvant formulations to potentiate antibody responses to a Plasmodium falciparum blood-stage vaccine.
1851 18006124 We investigated the ability of eight adjuvant formulations to potentiate the immunogenicity of a malaria vaccine in mice deficient in the prominent co-stimulatory molecules, CD80 and CD86; and the adhesion ligand, ICAM-1.
1852 18006124 While no adjuvants could bypass co-stimulatory requirements, more formulations exhibited dependency for CD86 than for CD80.
1853 18006124 In CD80 or CD86 KO mice, formulations with the saponin derivative, QS21 could efficiently default to the other B7 molecule.
1854 18006124 The requirement for ICAM-1 could be readily bypassed using adjuvant formulations containing immunomodulators; whereas this was not the case with emulsion-type adjuvants in which reduction in adjuvanticity was associated with decreases in antigen-specific IFN-gamma responses.
1855 18006124 The requirement of CD80, CD86, and ICAM-1 on the ability of adjuvant formulations to potentiate antibody responses to a Plasmodium falciparum blood-stage vaccine.
1856 18006124 We investigated the ability of eight adjuvant formulations to potentiate the immunogenicity of a malaria vaccine in mice deficient in the prominent co-stimulatory molecules, CD80 and CD86; and the adhesion ligand, ICAM-1.
1857 18006124 While no adjuvants could bypass co-stimulatory requirements, more formulations exhibited dependency for CD86 than for CD80.
1858 18006124 In CD80 or CD86 KO mice, formulations with the saponin derivative, QS21 could efficiently default to the other B7 molecule.
1859 18006124 The requirement for ICAM-1 could be readily bypassed using adjuvant formulations containing immunomodulators; whereas this was not the case with emulsion-type adjuvants in which reduction in adjuvanticity was associated with decreases in antigen-specific IFN-gamma responses.
1860 18006124 The requirement of CD80, CD86, and ICAM-1 on the ability of adjuvant formulations to potentiate antibody responses to a Plasmodium falciparum blood-stage vaccine.
1861 18006124 We investigated the ability of eight adjuvant formulations to potentiate the immunogenicity of a malaria vaccine in mice deficient in the prominent co-stimulatory molecules, CD80 and CD86; and the adhesion ligand, ICAM-1.
1862 18006124 While no adjuvants could bypass co-stimulatory requirements, more formulations exhibited dependency for CD86 than for CD80.
1863 18006124 In CD80 or CD86 KO mice, formulations with the saponin derivative, QS21 could efficiently default to the other B7 molecule.
1864 18006124 The requirement for ICAM-1 could be readily bypassed using adjuvant formulations containing immunomodulators; whereas this was not the case with emulsion-type adjuvants in which reduction in adjuvanticity was associated with decreases in antigen-specific IFN-gamma responses.
1865 18006124 The requirement of CD80, CD86, and ICAM-1 on the ability of adjuvant formulations to potentiate antibody responses to a Plasmodium falciparum blood-stage vaccine.
1866 18006124 We investigated the ability of eight adjuvant formulations to potentiate the immunogenicity of a malaria vaccine in mice deficient in the prominent co-stimulatory molecules, CD80 and CD86; and the adhesion ligand, ICAM-1.
1867 18006124 While no adjuvants could bypass co-stimulatory requirements, more formulations exhibited dependency for CD86 than for CD80.
1868 18006124 In CD80 or CD86 KO mice, formulations with the saponin derivative, QS21 could efficiently default to the other B7 molecule.
1869 18006124 The requirement for ICAM-1 could be readily bypassed using adjuvant formulations containing immunomodulators; whereas this was not the case with emulsion-type adjuvants in which reduction in adjuvanticity was associated with decreases in antigen-specific IFN-gamma responses.
1870 18097567 To obtain genetically modified cells, 123IA cells were transfected with bicistronic plasmid vectors carrying the herpes simplex type 1 thymidine kinase (HSV TK) gene and either the gene for the mouse B7.1 (CD80) co-stimulatory molecule or the gene for the monocyte-chemoattractant protein 1 (MCP-1).
1871 18097567 On the other hand, nearly all mice inoculated with MCP-1-producing cells developed tumours, though considerably later than animals inoculated with the same dose of the parental MK16 cells.
1872 18160476 In vitro, chinchilla DCs readily internalized LB1, upregulated expression of the maturation markers CD80 and major histocompatibility complex class II, and presented processed LB1 to primed CD3+ T cells, which resulted in antigen-specific T-cell proliferation.
1873 18272667 The infection of mDCs induced apoptosis, reduced the expression of CD80/86 and major histocompatibility complex class II molecules, and increased the expression of interleukin-10, thus suggesting that such mDC modulation results in the impairment of T-cell activation.
1874 18298336 We examined this vaccine's biologic characteristics and immune activity in vitro, finding that infection with the polyepitope adenovirus did not alter the typical morphology of mature DC and the typical markers of these cells (CD86, CD83, CD80, and HLA-DR) were highly expressed on rAd-pE-DCs.
1875 18360875 In this setup, which excludes direct oncolytic effects on metastases, the JabCG2 vector displayed enhanced immunogenicity, inducing markers of cellular immunity (IFN gamma) and dendritic cell activation (CD80, CD86) in mediastinal (tumour-draining) lymph nodes.
1876 18389479 DiC14-amidine liposomes also activated human DC, as shown by synthesis of IL-12p40 and TNF-alpha, accumulation of IL-6, IFN-beta and CXCL10 mRNA, and up-regulation of membrane expression of CD80 and CD86.
1877 18389479 DC stimulation by diC14-amidine liposomes was associated with activation of NF-kappaB, ERK1/2, JNK and p38 MAP kinases.
1878 18389479 Finally, we demonstrated in mouse and human cells that diC14-amidine liposomes use Toll-like receptor 4 to elicit both MyD88-dependent and Toll/IL-1R-containing adaptor inducing interferon IFN-beta (TRIF)-dependent responses.
1879 18412160 This activated peripheral tissue-derived DC population, characterized by enhanced CD80, CD86, CD40 and IL-12p40 expression, was only identified when focusing on adjuvant- or antigen-labeled CD11c(+) DC, which were found to support T cell proliferation.
1880 18412160 Immunization with aluminum hydroxide adjuvant (Alum) resulted in a similar proportion of antigen-associated DC but without detectable enhancement of CD80, CD86, CD40 or IL-12p40 expression.
1881 18412160 This activated peripheral tissue-derived DC population, characterized by enhanced CD80, CD86, CD40 and IL-12p40 expression, was only identified when focusing on adjuvant- or antigen-labeled CD11c(+) DC, which were found to support T cell proliferation.
1882 18412160 Immunization with aluminum hydroxide adjuvant (Alum) resulted in a similar proportion of antigen-associated DC but without detectable enhancement of CD80, CD86, CD40 or IL-12p40 expression.
1883 18466357 Macroarray analysis results (validated by real time quantitative-PCR (QRT-PCR) and immunoblotting), showed up-regulation of the pro-apoptotic member of the Bcl-2 family, Bim, while expression of several anti-apoptotic molecules was down-regulated.
1884 18466357 Importantly, pre-apoptotic DCs (characterized by a low Delta psi m) showed a modified phenotype, with down-regulation of HLA-DR and of the co-stimulatory molecules CD80 and CD86.
1885 18479753 The expressions of CD80/CD86 on B cells, and CD154/CD25 on T cells, were analyzed by flow cytometry (FCM), and IL-2 production was assayed by ELISA.
1886 18479753 The hCGbeta-hC3d3 fusion protein enhanced the expression of CD80 and CD86 on B cells, especially CD86 (P<0.05), and significantly increased the expression of CD154 and CD25 molecules on T cells compared to that of hCGbeta (P<0.05).
1887 18479753 The expressions of CD80/CD86 on B cells, and CD154/CD25 on T cells, were analyzed by flow cytometry (FCM), and IL-2 production was assayed by ELISA.
1888 18479753 The hCGbeta-hC3d3 fusion protein enhanced the expression of CD80 and CD86 on B cells, especially CD86 (P<0.05), and significantly increased the expression of CD154 and CD25 molecules on T cells compared to that of hCGbeta (P<0.05).
1889 18479787 Therapeutic vaccination with dendritic cells pulsed with tumor-derived Hsp70 and a COX-2 inhibitor induces protective immunity against B16 melanoma.
1890 18479787 Here we sought to overcome this problem by therapeutic vaccination with dendritic cells (DC) pulsed with Hsp70 and a COX-2 inhibitor.
1891 18479787 We found that Hsp70 induces IL-6 and IL-10 production and suppressed expression of CD40 on DC.
1892 18479787 Incubation of DC with tumor-conditioned medium attenuated Hsp70-induced expression of CD80 and induced expression of COX-2.
1893 18479787 Inhibition of COX-2 partially reversed the stimulatory effect of Hsp70 on DC IL-6 and IL-10 production and enhanced expression of CD80 and MHC classes I and II.
1894 18479787 Therapeutic administration of DC pulsed in vitro with Hsp70 in the presence of a COX-2 inhibitor significantly reduced progression of B16 tumors in mice and significantly enhanced survival.
1895 18479787 This was associated with a reduction in the frequency of IL-10-producing CD4(+) T cells and enhancement of IFN-gamma-producing CD8(+) T cells.
1896 18479787 Therapeutic vaccination with dendritic cells pulsed with tumor-derived Hsp70 and a COX-2 inhibitor induces protective immunity against B16 melanoma.
1897 18479787 Here we sought to overcome this problem by therapeutic vaccination with dendritic cells (DC) pulsed with Hsp70 and a COX-2 inhibitor.
1898 18479787 We found that Hsp70 induces IL-6 and IL-10 production and suppressed expression of CD40 on DC.
1899 18479787 Incubation of DC with tumor-conditioned medium attenuated Hsp70-induced expression of CD80 and induced expression of COX-2.
1900 18479787 Inhibition of COX-2 partially reversed the stimulatory effect of Hsp70 on DC IL-6 and IL-10 production and enhanced expression of CD80 and MHC classes I and II.
1901 18479787 Therapeutic administration of DC pulsed in vitro with Hsp70 in the presence of a COX-2 inhibitor significantly reduced progression of B16 tumors in mice and significantly enhanced survival.
1902 18479787 This was associated with a reduction in the frequency of IL-10-producing CD4(+) T cells and enhancement of IFN-gamma-producing CD8(+) T cells.
1903 18486627 Addition of IFN-gamma and lactoferrin to BCG-infected BMMs enhanced MHC II expressiona dna increased the ratio of CD86/CD80.
1904 18486627 Lactoferrin treated BCG-infected BMMs were able to stimulate an increase in IFN-gamma production from presensitized CD3(+) splenocytes.
1905 18497970 In this study, we constructed two coexpression vectors pGL3-CD80-OVA-linker-beta2m and pGL3-IL21-OVA-linker-beta2m, in order to explore the cooperative action of CD80 or interleukin-21 (IL21) with the epitope fusion gene in anti-tumor immunity.
1906 18497970 IL21 played a more cooperative role with the OVA-linker-beta2m than CD80 in this study.
1907 18497970 In this study, we constructed two coexpression vectors pGL3-CD80-OVA-linker-beta2m and pGL3-IL21-OVA-linker-beta2m, in order to explore the cooperative action of CD80 or interleukin-21 (IL21) with the epitope fusion gene in anti-tumor immunity.
1908 18497970 IL21 played a more cooperative role with the OVA-linker-beta2m than CD80 in this study.
1909 18545973 The surface expression of co-stimulatory molecules (CD80 and CD86) and major histocompatibility complex class I and II molecules was higher in DCs pulsed with AbOmpA alone or with a combination of B16F10 cell lysates than that of DCs pulsed with B16F10 cell lysates.
1910 18545973 AbOmpA-pulsed DCs significantly enhanced CD8+, interleukin-2+ T cells and CD4+, interferon-gamma+ T cells in tumor-bearing mice.
1911 18562564 We previously showed that several adjuvant formulations can induce anti-MSP1-19 antibodies in interleukin-6, intercellular adhesion molecule 1, CD80, and CD86 knockout (KO) mice and at levels similar to those obtained in the healthy uninfected hosts.
1912 18565118 We found that after the first recall stimulation with MAP4, the major cell population was predominantly CD4(+) T-cell subsets (68.5%), CD8(+high) (16%) and CD19(+) (10%).
1913 18565118 Additionally, MAP4 PIV cells significantly expressed CD4(+)-HLA-DR(+), -CD54(+), -CD45RO(+) (P < 0.0001) and -CD25(+) (P < 0.0004) together with significant expression of CD80(+) on CD19(+) B cells (P < 0.007).
1914 18565118 Cytokine production from activated MAP4 PIV cells was predominantly Th1-like, consisting mainly of IFN-gamma.
1915 18600180 Costimulatory molecules B7.1 (CD80) and B7.2 (CD86) have improved the efficacy of gene-based and cell-based vaccines in animal models and are under investigation in clinical trials.
1916 18600180 However, their efficacy as vaccine adjuvants is likely limited by the fact that they mediate both stimulatory and inhibitory signals to T cells via CD28 and CTLA-4, respectively.
1917 18600180 To overcome these limitations, we have generated a B7.1-like, chimeric costimulatory molecule with preferential binding to CD28, named CD28-binding protein (CD28BP), which we combined with a modified, nonself tumor antigen variant of epithelial cell adhesion molecule (EpCAM), named TAg25.
1918 18600180 In contrast, TAg25 combined with CD28BP induced both CD4 and CD8 T cells specific for EpCAM.
1919 18628832 Such BVLPs up-regulated the level of CD40, CD80, CD86, CD83, and enhanced the secretion of IL-6, IL-10 and TNF-alpha in immature dendritic cells (DCs).
1920 18628832 BVLPs showed a stronger ability to stimulate DCs in terms of cytokine induction as evidenced by 2 to 6 fold higher production of IL-6 and TNF-alpha.
1921 18628832 Further study indicated that IFN-gamma+ and IL-4+ populations in CD4+ T cells increased upon co-cultivation with DCs pre-exposed with BVLPs or SARS-CoV VLPs.
1922 18708593 DnaK induced the activation of MAPKs and NF-kappaB in DC and the production of the proinflammatory cytokines IL-6, TNF-alpha, and IL-12 p40, as well as low levels of IL-10.
1923 18708593 DnaK induced phenotypic maturation of DC, as demonstrated by an up-regulation of costimulatory molecules CD40, CD80, and CD86.
1924 18708593 DnaK stimulated DC through TLR4 and the adapters MyD88 and Toll/IL-1R domain-containing adaptor-inducing IFN-beta (TRIF) that mediated differential responses.
1925 18708593 DnaK induced activation of MAPKs and NF-kappaB in a MyD88- or TRIF-dependent manner.
1926 18708593 In contrast, DnaK induced DC maturation in a TRIF-dependent, MyD88-independent manner.
1927 18781830 Abstract The development of tumor vaccines or generation of tumor-specific cytotoxic T lymphocytes (CTL) is limited by the fact that many tumor cells downregulate the expression of major histocompatibility complex (MHC) Class I and II molecules, as well as key co-stimulatory molecules such as CD80 and CD86.
1928 18781830 The resulting hybridoma cells expressed the neural antigen GD2 as well as MHC Class I, Class II, CD 80, and CD86.
1929 18945465 We demonstrated that VLP expressed by recombinant baculoviruses activate human PBMC to release pro-inflammatory (lL-6, TNF-alpha), anti-inflammatory (IL-10) and Th1-polarizing (IFN-gamma) cytokines as well as GM-CSF and MIP-1alpha in a dose-and time-dependent manner.
1930 18945465 Furthermore, VLP-induced monocyte activation was shown by upregulation of molecules involved in antigen presentation (MHC II, CD80, CD86) and cell adhesion (CD54).
1931 18945879 Downregulation of CD40 ligand response in monocytes from sepsis patients.
1932 18945879 Here, the response of monocytes to CD40 ligand (CD40L) for patients with sepsis due to infection with gram-negative organisms has been analyzed.
1933 18945879 Compared to cells from controls, monocytes from septic patients showed significantly reduced production of tumor necrosis factor alpha, interleukin-1beta (IL-1beta), and IL-12 and were unable to acquire high levels of CD80 and CD86 molecules.
1934 18945879 In addition, costimulation of autologous CD4+ T lymphocytes by CD40L-activated monocytes from septic patients failed to induce cell proliferation and gamma interferon production.
1935 18991097 These phenotypic changes were enhanced when the DC were loaded with apoptotic cells, leading to increased expression of the DC maturation-associated markers CD83, CD80 and the chemokine receptor CCR7.
1936 18991097 The CD8 T cells expressed augmented levels of perforin, IFN-gamma and TNF-alpha and mediated CTCL cell apoptosis.
1937 18996429 Immunization with antigen (sAg) encapsulated in saccharosome resulted in enhancement of CD4+ and CD8+ T cell populations and also up-regulated the expression of CD80 and CD86 molecules on the surface of antigen presenting cells.
1938 18996429 Further, immunization with saccharosome-encapsulated sAg-induced elevated levels of both IFN-gamma and IL-4 cytokines in the immunized mice when compared to egg PC liposome encapsulated sAg or its IFA emulsified form.
1939 19017952 During T cell interaction with APC, CD28 is recruited to the central region (cSMAC) of the immunological synapse.
1940 19017952 CD28-mediated signaling through PI3K results in the recruitment of protein kinase C-theta (PKCtheta) to the cSMAC, activation of NF-kappaB, and up-regulation of IL-2 transcription.
1941 19017952 In this report, we show that CD28 recruitment and persistence at the immunological synapse requires TCR signals and CD80 engagement.
1942 19017952 Addition of mAb to either MHC class II or CD80 results in the rapid displacement of CD28 from the immunological synapse.
1943 19017952 Ligand binding is not sufficient for CD28 localization to the immunological synapse, as truncation of the cytosolic tail of CD28 disrupts synapse localization without effecting the ability of CD28 to bind CD80.
1944 19017952 Mutation of tyrosine 188 also results in diminished activation of NF-kappaB, suggesting that CD28-mediated localization of PKCtheta to the cSMAC is important for efficient signal transduction.
1945 19017952 During T cell interaction with APC, CD28 is recruited to the central region (cSMAC) of the immunological synapse.
1946 19017952 CD28-mediated signaling through PI3K results in the recruitment of protein kinase C-theta (PKCtheta) to the cSMAC, activation of NF-kappaB, and up-regulation of IL-2 transcription.
1947 19017952 In this report, we show that CD28 recruitment and persistence at the immunological synapse requires TCR signals and CD80 engagement.
1948 19017952 Addition of mAb to either MHC class II or CD80 results in the rapid displacement of CD28 from the immunological synapse.
1949 19017952 Ligand binding is not sufficient for CD28 localization to the immunological synapse, as truncation of the cytosolic tail of CD28 disrupts synapse localization without effecting the ability of CD28 to bind CD80.
1950 19017952 Mutation of tyrosine 188 also results in diminished activation of NF-kappaB, suggesting that CD28-mediated localization of PKCtheta to the cSMAC is important for efficient signal transduction.
1951 19017952 During T cell interaction with APC, CD28 is recruited to the central region (cSMAC) of the immunological synapse.
1952 19017952 CD28-mediated signaling through PI3K results in the recruitment of protein kinase C-theta (PKCtheta) to the cSMAC, activation of NF-kappaB, and up-regulation of IL-2 transcription.
1953 19017952 In this report, we show that CD28 recruitment and persistence at the immunological synapse requires TCR signals and CD80 engagement.
1954 19017952 Addition of mAb to either MHC class II or CD80 results in the rapid displacement of CD28 from the immunological synapse.
1955 19017952 Ligand binding is not sufficient for CD28 localization to the immunological synapse, as truncation of the cytosolic tail of CD28 disrupts synapse localization without effecting the ability of CD28 to bind CD80.
1956 19017952 Mutation of tyrosine 188 also results in diminished activation of NF-kappaB, suggesting that CD28-mediated localization of PKCtheta to the cSMAC is important for efficient signal transduction.
1957 19036811 We therefore expressed a viral protein that constitutively activates NF-kappaB, vFLIP from Kaposi's sarcoma-associated herpesvirus (KSHV), in a lentivector to mature DCs. vFLIP activated NF-kappaB in mouse bone marrow-derived DCs in vitro and matured these DCs to a similar extent as lipopolysaccharide; costimulatory markers CD80, CD86, CD40, and ICAM-1 were upregulated and tumor necrosis factor alpha and interleukin-12 secreted.
1958 19036823 Incorporation of CD40 ligand into the envelope of pseudotyped single-cycle Simian immunodeficiency viruses enhances immunogenicity.
1959 19036823 To improve vaccine immunogenicity, we incorporated CD40 ligand (CD40L) into the dSIV envelope.
1960 19036823 Binding of CD40L to its receptor upregulates expression of major histocompatibility complex class I, class II, and costimulatory molecules on DCs and increases production of proinflammatory cytokines and chemokines, especially interleukin 12 (IL-12).
1961 19036823 Expression levels of CD80, CD86, HLA-DR, and CD54 on DCs transduced with the dSIV incorporating CD40L (CD40L-dSIV) were significantly higher than on those transduced with dSIV.
1962 19036823 Moreover, CD40L-dSIV-transduced DCs expressed up to 10-fold more IL-12 than dSIV-transduced DCs.
1963 19107191 The 60 kDa heat shock protein (HSP60) has been reported to influence T-cell responses in two ways: as a ligand of toll-like receptor 2 signalling and as an antigen.
1964 19107191 Presentation of HSP60 by activated T cells was found to be MHC-restricted and dependent on accessory molecules - CD28, CD80 and CD86.
1965 19107191 Anti-ergotypic T cells responded to T-cell HSP60 by proliferation and secreted IFNgamma and TGFbeta1.
1966 19107191 In vivo, adoptive transfer of an anti-ergotypic HSP60-specific T-cell line led to decreased secretion of IFNgamma by arthritogenic T cells and ameliorated adjuvant arthritis (AA).
1967 19110021 We demonstrate for the first time that treatment with yeast-CEA can activate human DCs, resulting in increases in surface expression of CD80, CD83, CD54, CD58, and MHC class II, and increased production by DCs of IL-12p70, TNF-alpha, IFN-gamma, IL-8, IL-2, IL-13, IL-10, and IL-1beta.
1968 19124765 Typhi(F1) enhanced the activation and maturation of neonatal CD11c+ dendritic cells, shown by increased expression of CD80, CD86, CD40, and MHC-II cell surface markers and production of proinflammatory cytokines IL-12, TNF-alpha, IL-6, and MCP-1.
1969 19124765 Typhi(F1)-stimulated neonatal DC had improved capacity for Ag presentation and T cell stimulation in vitro and induced F1-specific CD4+ and CD8+ T cell responses when adoptively transferred to newborn mice.
1970 19141400 After 7 days of culture, DCs were harvested and the expression of CD1a, CD83, CD80, CD86 and HLA-DR antigens were analyzed by flow cytometry.
1971 19141400 The expression of co-stimulatory and maturation markers (CD86, CD83 and HLA-DR) was higher on DCs from the culture with tumor cell lysate compared with TNF-alpha culture as a control.
1972 19237530 Efficient uptake of the polymeric peptide in vitro resulted in higher expression of the coactivation markers CD80, CD40, and CD70 on dendritic cells and higher proinflammatory cytokine production than with the monomeric peptide.
1973 19278729 Peptidoglycan (PGN), lipoteichoic acid (LTA), lipoprotein (LP), and DNA were also isolated from the bacteria, and used to stimulate BM-DCs.
1974 19278729 Stimulation with TNF, S. gordonii, PGN, LTA, or LP all resulted in increased surface expression of MHCII, CD80, and CD86, compared to unstimulated BM-DCs.
1975 19278729 Stimulation with S. gordonii elicited IL-6, IL-10, and IL-12p70 production from the BM-DCs, while stimulation with the bacterial components induced some or all of the three cytokines.
1976 19278729 When BM-DCs were simultaneously stimulated with S. gordonii and TNF, a marginal increase in surface marker upregulation was observed, and the two stimuli synergized to elicit substantially greater quantities of IL-6, IL-10, and IL-12p70.
1977 19278729 The effect of TNF was abolished when BM-DCs were obtained from mice deficient for either TNFR1 or TNFR2, and cytokine induction by S. gordonii was entirely dependent on functional MyD88.
1978 19278729 Synergistic IL-10 induction by S. gordonii and TNF was not observed in TLR-2(-/-) BM-DCs, and TNF was found to cause TLR-2 upregulation, providing at least a partial mechanism for the observed synergy.
1979 19342965 Immature dendritic cells (iDCs) are often produced by the stimulation of peripheral blood monocytes with interleukin (IL)-4 and granulocyte macrophage-colony stimulating factor.
1980 19342965 The purpose of this study was to determine if the DC maturation cocktail LPS plus IFN-gamma could be improved by the addition of 2 other DC maturation agents IL-1beta and tumor necrosis factor (TNF)-alpha.
1981 19342965 Monocytes were isolated from the peripheral blood mononuclear cell concentrates by elutriation and were incubated for 3 days with granulocyte macrophage-colony stimulating factor and IL-4 to produce iDCs. iDCs from each subject were divided into 3 and were incubated for 24 hours with LPS plus IFN-gamma; LPS, IFN-gamma, plus IL-1beta; or LPS, IFN-gamma, IL-1beta, plus TNF-alpha to produce mDCs.
1982 19342965 The DCs were compared by measuring the expression of costimulator and antigen presenting molecules (CD80, CD83, CD86, and human leukocyte antigen-DR) by flow cytometry, cytokine production (IL-12p70 and IL-10) by enzyme-linked immunosorbent assay and global gene expression using an oligonucleotide microarray.
1983 19342965 There was no benefit of adding IL-1beta and TNF-alpha to LPS and IFN-gamma to produce mDCs.
1984 19428919 PEP005 was shown to have adjuvant properties, being able to upregulate CD80 and CD86 expression on dendritic cells in vivo, and to promote CD8 T cell induction when co-delivered with a protein antigen.
1985 19483643 Granulocyte macrophage-colony stimulating factor plus interleukin-2 plus alpha-interferon plus 5-fluorouracil in the treatment of metastatic renal cell cancer: induction of CD80/86+ T cells indicates adverse outcome.
1986 19483643 Granulocyte macrophage-colony stimulating factor plays a central role in the differentiation and activation of antigen presenting cells.
1987 19483643 This clinical phase 1/2 chemoimmunotherapy trial in metastatic RCC used sequential application of alpha-interferon /5-fluorouracil followed by granulocyte macrophage-colony stimulating factor/interleukin-2.
1988 19494083 Adherent peritoneal cells from rats treated with HKC-CFA showed upregulated ED2, CD80, and CD86 expression; an increase in the level of production of anticryptococcal metabolites; and the enhanced production of interleukin-12 (IL-12) in comparison with the findings for cells from rats treated with CFA-phosphate-buffered saline (PBS).
1989 19494083 Adherent peritoneal cells from rats treated with PSC-CFA, however, also presented upregulated ED2, CD80, and CD86 expression compared to the level of expression for peritoneal cells from controls, but these cells showed an increase in arginase activity and decreased levels of production of IL-12 and tumor necrosis factor (TNF) compared with the activity and levels of production by peritoneal cells from CFA-PBS-treated rats.
1990 19494083 Adherent peritoneal cells from rats treated with HKC-CFA showed upregulated ED2, CD80, and CD86 expression; an increase in the level of production of anticryptococcal metabolites; and the enhanced production of interleukin-12 (IL-12) in comparison with the findings for cells from rats treated with CFA-phosphate-buffered saline (PBS).
1991 19494083 Adherent peritoneal cells from rats treated with PSC-CFA, however, also presented upregulated ED2, CD80, and CD86 expression compared to the level of expression for peritoneal cells from controls, but these cells showed an increase in arginase activity and decreased levels of production of IL-12 and tumor necrosis factor (TNF) compared with the activity and levels of production by peritoneal cells from CFA-PBS-treated rats.
1992 19538997 Sheep were primed by particle-mediated epidermal bombardment with VMV gag and env gene recombinant plasmids together with plasmids encoding both CD80 and CD86 or CD80 alone, boosted with gag and env gene recombinant modified vaccinia Ankara virus and challenged intratracheally with VMV.
1993 19538997 Immunization in the presence of one or both of the B7 genes resulted in CD4+ T cell activation and antibody production (before and after challenge, respectively), but only immunization with CD80 and CD86 genes together, and not CD80 alone, resulted in a reduced number of infected animals and increased early transient cytotoxic T lymphocytes (CTL) responses.
1994 19538997 Sheep were primed by particle-mediated epidermal bombardment with VMV gag and env gene recombinant plasmids together with plasmids encoding both CD80 and CD86 or CD80 alone, boosted with gag and env gene recombinant modified vaccinia Ankara virus and challenged intratracheally with VMV.
1995 19538997 Immunization in the presence of one or both of the B7 genes resulted in CD4+ T cell activation and antibody production (before and after challenge, respectively), but only immunization with CD80 and CD86 genes together, and not CD80 alone, resulted in a reduced number of infected animals and increased early transient cytotoxic T lymphocytes (CTL) responses.
1996 19556898 T-cell activation requires both antigen presentation to the T-cell receptor and a second signal mediated by CD80 and CD86 on antigen-presenting cells and CD28 on the T cell.
1997 19556898 Ligand binding to CD28 on the T-cell surface leads to T-cell proliferation and expression of activating cytokines such as interleukin-2.
1998 19556898 Cytotoxic T-lymphocyte antigen-4 (CTLA-4), an inhibitory protein expressed on T cells, competes for the same ligands as CD28 and modulates T-cell activation.
1999 19556898 Because CTLA-4 has a significantly higher binding efficiency than CD28, CTLA-4 is critical in maintaining immune tolerance to self-antigens and may also limit responses to tumor antigens and vaccine therapy.
2000 19557412 Uveal melanoma cell-based vaccines express MHC II molecules that traffic via the endocytic and secretory pathways and activate CD8+ cytotoxic, tumor-specific T cells.
2001 19557412 MHC II uveal melanoma vaccines are MHC class I(+) uveal melanoma cells transduced with CD80 genes and MHC II genes syngeneic to the recipient.
2002 19557412 We also demonstrate that uveal melanoma MHC II vaccines activate uveal melanoma-specific, cytolytic CD8(+) T cells that do not lyse normal fibroblasts or other tumor cells.
2003 19557412 Surprisingly, the CD8(+) T cells are cytolytic for HLA-A syngeneic and MHC I-mismatched uveal melanomas.
2004 19557412 Collectively, these studies demonstrate that MHC II uveal melanoma vaccines are potent activators of tumor-specific CD4(+) and CD8(+) T cells and suggest that the non-conventional intracellular trafficking pattern of MHC II may contribute to their enhanced immunogenicity.
2005 19557412 Since MHC I compatibility is unnecessary for the activation of cytolytic CD8(+) T cells, the vaccines could be used in uveal melanoma patients without regard to MHC I genotype.
2006 19578511 Human monocytes were cultured with GM-CSF and IL-4 for 6 days under standard conditions, followed by another 2 days in the presence of M1, M4, T-cadinol or calamenene.
2007 19578511 The expression levels of CD1a, CD80, CD83, CD86 and HLA-DR on M1-primed DC, M4-primed DC, T-cadinol-primed DC and calamenene-primed DC were enhanced with a concomitant decrease in endocytic activity.
2008 19578511 Naïve T cells co-cultured with allogeneic M1-primed DC, M4-primed DC, T-cadinol-primed DC or calamenene-primed DC turned into typical Th1 cells, which produced large quantities of IFN-gamma and released small amounts of IL-4 depending on IL-12 secretion.
2009 19578511 In the CTL assay (cytotoxic T-lymphocyte assay), the production of IFN-gamma and (51)Cr release on M4-primed DC was more augmented than of immature DC or TNF-alpha-primed DC.
2010 19578865 We investigated the effect of different toll like receptor (TLR) agonists including LPS (TLR4 agonist), polyinosinic acid-polycytidylic acid (PIC, TLR3 agonist), CpG oligonucleotide (TLR9 agonist), and imiquimod (TLR7 agonist) on human monocyte-derived dendritic cells (mdDCs) loading of human papillomavirus (HPV) type 11 E7 epitope.
2011 19578865 This was characterized by an enhanced expression of CD40, CD80, CD86, CD83 and HLA-DR, and a high level of IL-12 production.
2012 19580785 Human monocyte-derived immature or LPS- and cytokine-matured DCs were exposed to ambient or 40 mmHg increased pressure for 12h, then assessed for expression of CD80, CD86, CD40, MHC-I/II, and inflammatory cytokine production.
2013 19628058 WSL enhanced Th1 cytokine IFN-gamma expression in Con A primed splenocytes in vitro.
2014 19628058 When given orally for 2 weeks to BALB/c mice immunized with emulsion of OVA in Freund's adjuvant (OVA-FCA), it caused dose-dependent proliferation of T cells and improved their ability to secrete IL-2 and IFN-gamma, but moderately down-regulated Th2 cytokine IL-4.
2015 19628058 Flow cytometric analysis of lymphocyte surface markers of T cells CD3(+), CD4(+) and CD8(+), and B cells CD19(+) indicated prominent enhancement in proliferation and differentiation of lymphocytes.
2016 19628058 Further, the effect of WSL in immunized mice elicited up-regulation of beta-integrins LFA (CD11a) and Mac-1 (CD11b) in splenocytes.
2017 19628058 Co-stimulatory molecules CD80 and CD86 that are important secondary signals for the activation of immune system elicited remarkable enhanced expression when observed in spleen-derived macrophages isolated from WSL treated mice.
2018 19652662 WAg 206, unlike WAg 207, did not elicit inflammatory cytokine production (TNFalpha, IL-1beta, IL-12) or costimulatory molecule expression (HLA-DR, CD83, CD80, CD86) by human MDDCs in vitro.
2019 19669608 These cells were cultured with cytokines GM-CSF, IL-4, and TNFalpha to induce their maturation.
2020 19669608 Phenotypically, FACS analysis showed that they expressed high levels of MHC II, CD11b, CD80, and CD86 antigen, and were negative for CD8alpha.
2021 19711075 Lytic activity against primary AML cells is stimulated in vitro by an autologous whole cell vaccine expressing IL-2 and CD80.
2022 19711075 We have previously shown that in vitro stimulation of autologous peripheral blood mononuclear cells (PBMCs) with primary AML cells modified to express CD80 and IL-2 promotes proliferation, secretion of Th1 cytokines and expansion of activated CD8(+) T cells.
2023 19711075 In this study, we show that allogeneic effector cells (from a healthy donor or AML patients) when stimulated with IL-2/CD80 modified AML blasts were able to induce the lysis of unmodified AML blasts.
2024 19711075 Effector cells stimulated with IL-2/CD80AML blasts had higher lytic activity than cells stimulated with AML cells expressing CD80 or IL-2 alone.
2025 19711075 Similarly, AML patient PBMCs primed with autologous IL-2/CD80 AML cells had a higher frequency of IFN-gamma secreting cells and show cytotoxicity against autologous, unmodified blasts.
2026 19711075 Although studied in a small number of heterogeneous patient samples, the data are encouraging and support the continuing development of vaccination for poor prognosis AML patients with autologous cells genetically modified to express IL-2/CD80.
2027 19711075 Lytic activity against primary AML cells is stimulated in vitro by an autologous whole cell vaccine expressing IL-2 and CD80.
2028 19711075 We have previously shown that in vitro stimulation of autologous peripheral blood mononuclear cells (PBMCs) with primary AML cells modified to express CD80 and IL-2 promotes proliferation, secretion of Th1 cytokines and expansion of activated CD8(+) T cells.
2029 19711075 In this study, we show that allogeneic effector cells (from a healthy donor or AML patients) when stimulated with IL-2/CD80 modified AML blasts were able to induce the lysis of unmodified AML blasts.
2030 19711075 Effector cells stimulated with IL-2/CD80AML blasts had higher lytic activity than cells stimulated with AML cells expressing CD80 or IL-2 alone.
2031 19711075 Similarly, AML patient PBMCs primed with autologous IL-2/CD80 AML cells had a higher frequency of IFN-gamma secreting cells and show cytotoxicity against autologous, unmodified blasts.
2032 19711075 Although studied in a small number of heterogeneous patient samples, the data are encouraging and support the continuing development of vaccination for poor prognosis AML patients with autologous cells genetically modified to express IL-2/CD80.
2033 19711075 Lytic activity against primary AML cells is stimulated in vitro by an autologous whole cell vaccine expressing IL-2 and CD80.
2034 19711075 We have previously shown that in vitro stimulation of autologous peripheral blood mononuclear cells (PBMCs) with primary AML cells modified to express CD80 and IL-2 promotes proliferation, secretion of Th1 cytokines and expansion of activated CD8(+) T cells.
2035 19711075 In this study, we show that allogeneic effector cells (from a healthy donor or AML patients) when stimulated with IL-2/CD80 modified AML blasts were able to induce the lysis of unmodified AML blasts.
2036 19711075 Effector cells stimulated with IL-2/CD80AML blasts had higher lytic activity than cells stimulated with AML cells expressing CD80 or IL-2 alone.
2037 19711075 Similarly, AML patient PBMCs primed with autologous IL-2/CD80 AML cells had a higher frequency of IFN-gamma secreting cells and show cytotoxicity against autologous, unmodified blasts.
2038 19711075 Although studied in a small number of heterogeneous patient samples, the data are encouraging and support the continuing development of vaccination for poor prognosis AML patients with autologous cells genetically modified to express IL-2/CD80.
2039 19711075 Lytic activity against primary AML cells is stimulated in vitro by an autologous whole cell vaccine expressing IL-2 and CD80.
2040 19711075 We have previously shown that in vitro stimulation of autologous peripheral blood mononuclear cells (PBMCs) with primary AML cells modified to express CD80 and IL-2 promotes proliferation, secretion of Th1 cytokines and expansion of activated CD8(+) T cells.
2041 19711075 In this study, we show that allogeneic effector cells (from a healthy donor or AML patients) when stimulated with IL-2/CD80 modified AML blasts were able to induce the lysis of unmodified AML blasts.
2042 19711075 Effector cells stimulated with IL-2/CD80AML blasts had higher lytic activity than cells stimulated with AML cells expressing CD80 or IL-2 alone.
2043 19711075 Similarly, AML patient PBMCs primed with autologous IL-2/CD80 AML cells had a higher frequency of IFN-gamma secreting cells and show cytotoxicity against autologous, unmodified blasts.
2044 19711075 Although studied in a small number of heterogeneous patient samples, the data are encouraging and support the continuing development of vaccination for poor prognosis AML patients with autologous cells genetically modified to express IL-2/CD80.
2045 19711075 Lytic activity against primary AML cells is stimulated in vitro by an autologous whole cell vaccine expressing IL-2 and CD80.
2046 19711075 We have previously shown that in vitro stimulation of autologous peripheral blood mononuclear cells (PBMCs) with primary AML cells modified to express CD80 and IL-2 promotes proliferation, secretion of Th1 cytokines and expansion of activated CD8(+) T cells.
2047 19711075 In this study, we show that allogeneic effector cells (from a healthy donor or AML patients) when stimulated with IL-2/CD80 modified AML blasts were able to induce the lysis of unmodified AML blasts.
2048 19711075 Effector cells stimulated with IL-2/CD80AML blasts had higher lytic activity than cells stimulated with AML cells expressing CD80 or IL-2 alone.
2049 19711075 Similarly, AML patient PBMCs primed with autologous IL-2/CD80 AML cells had a higher frequency of IFN-gamma secreting cells and show cytotoxicity against autologous, unmodified blasts.
2050 19711075 Although studied in a small number of heterogeneous patient samples, the data are encouraging and support the continuing development of vaccination for poor prognosis AML patients with autologous cells genetically modified to express IL-2/CD80.
2051 19711075 Lytic activity against primary AML cells is stimulated in vitro by an autologous whole cell vaccine expressing IL-2 and CD80.
2052 19711075 We have previously shown that in vitro stimulation of autologous peripheral blood mononuclear cells (PBMCs) with primary AML cells modified to express CD80 and IL-2 promotes proliferation, secretion of Th1 cytokines and expansion of activated CD8(+) T cells.
2053 19711075 In this study, we show that allogeneic effector cells (from a healthy donor or AML patients) when stimulated with IL-2/CD80 modified AML blasts were able to induce the lysis of unmodified AML blasts.
2054 19711075 Effector cells stimulated with IL-2/CD80AML blasts had higher lytic activity than cells stimulated with AML cells expressing CD80 or IL-2 alone.
2055 19711075 Similarly, AML patient PBMCs primed with autologous IL-2/CD80 AML cells had a higher frequency of IFN-gamma secreting cells and show cytotoxicity against autologous, unmodified blasts.
2056 19711075 Although studied in a small number of heterogeneous patient samples, the data are encouraging and support the continuing development of vaccination for poor prognosis AML patients with autologous cells genetically modified to express IL-2/CD80.
2057 19727134 Dendritic cells (DC) engineered in vitro by DNA encoding OVAhsp70 and IL-15 up-regulated their expressions of CD80, CD86, CCR7 and IL-15Ralpha and promoted their productions of IL-6, IL-12 and TNF-alpha.
2058 19788391 Phase 1 trial of allogeneic gene-modified tumor cell vaccine RCC-26/CD80/IL-2 in patients with metastatic renal cell carcinoma.
2059 19788391 Preclinical studies showed that the allogeneic tumor cell line RCC-26 displayed natural immunogenic potential that was enhanced through expression of CD80 costimulatory molecules and secretion of interleukin-2.
2060 19788391 Here we report the study of RCC-26/CD80/IL-2 cells in a phase 1 vaccine trial of renal cell carcinoma patients with metastatic disease (mRCC).
2061 19788391 Phase 1 trial of allogeneic gene-modified tumor cell vaccine RCC-26/CD80/IL-2 in patients with metastatic renal cell carcinoma.
2062 19788391 Preclinical studies showed that the allogeneic tumor cell line RCC-26 displayed natural immunogenic potential that was enhanced through expression of CD80 costimulatory molecules and secretion of interleukin-2.
2063 19788391 Here we report the study of RCC-26/CD80/IL-2 cells in a phase 1 vaccine trial of renal cell carcinoma patients with metastatic disease (mRCC).
2064 19788391 Phase 1 trial of allogeneic gene-modified tumor cell vaccine RCC-26/CD80/IL-2 in patients with metastatic renal cell carcinoma.
2065 19788391 Preclinical studies showed that the allogeneic tumor cell line RCC-26 displayed natural immunogenic potential that was enhanced through expression of CD80 costimulatory molecules and secretion of interleukin-2.
2066 19788391 Here we report the study of RCC-26/CD80/IL-2 cells in a phase 1 vaccine trial of renal cell carcinoma patients with metastatic disease (mRCC).
2067 19819280 Critical parameters for assessment of the optimal functional state of DCs and prediction of the vaccine potency of activated DCs have in the past been based on measurements of differentiation surface markers like HLA-DR, CD80, CD83, CD86, and CCR7 and the level of secreted cytokines like interleukin-12p70.
2068 19819280 Of these, four miRNAs, hsa-miR-155, hsa-miR-146a, hsa-miR-125a-5p, and hsa-miR-29a, were validated by real-time polymerase chain reaction and northern blotting.
2069 19853910 The effect of R1, R2 and R3 on the expression of the pro- and anti-inflammatory cytokines (TNF-alpha, IL-6, and IL-12) and the co-stimulatory molecules (CD40, CD80, CD86, and MHC class II) in MDDCs was examined.
2070 19853910 The exposure of R1 caused a dose-dependent increase in the expression of TNF-alpha, IL-12, CD86 and CD40, while R2 and R3 did not up-regulate these cytokines and co-stimulatory molecules.
2071 19853910 Furthermore, we found that R1 significantly increased the NF-kappaB expression in the nucleus (in a dose-dependent manner) and promoted the degradation of total IkappaBalpha levels, indicating that the NF-kappaB signaling pathway might involve in an R1-induced DC activation.
2072 19877891 A novel Bacillus Calmette-Guérin-based breast cancer vaccine that coexpresses multiple tandem repeats of MUC1 and CD80 breaks the immune tolerance and inhibits MUC1-positive breast cancer growth.
2073 19877891 In the present study, we constructed a novel Bacillus Calmette-Guérin-based breast cancer vaccine that coexpressed four VNTRs (variable-number tandem repeats) of MUC1 and CD80 (rBCG-MVNTR4-CD80).
2074 19877891 In addition, CD4 and CD8-positive lymphocytes in tumors from rBCG-MVNTR4-CD80-immunized animals were detected.
2075 19877891 These data showed that rBCG-MVNTR4-CD80 immunization elicited tumor-specific immune response, which closely related with the B7 molecule (CD80), indicating that the vaccine may be a good candidate for MUC1-positive breast cancer immunotherapy.
2076 19877891 A novel Bacillus Calmette-Guérin-based breast cancer vaccine that coexpresses multiple tandem repeats of MUC1 and CD80 breaks the immune tolerance and inhibits MUC1-positive breast cancer growth.
2077 19877891 In the present study, we constructed a novel Bacillus Calmette-Guérin-based breast cancer vaccine that coexpressed four VNTRs (variable-number tandem repeats) of MUC1 and CD80 (rBCG-MVNTR4-CD80).
2078 19877891 In addition, CD4 and CD8-positive lymphocytes in tumors from rBCG-MVNTR4-CD80-immunized animals were detected.
2079 19877891 These data showed that rBCG-MVNTR4-CD80 immunization elicited tumor-specific immune response, which closely related with the B7 molecule (CD80), indicating that the vaccine may be a good candidate for MUC1-positive breast cancer immunotherapy.
2080 19877891 A novel Bacillus Calmette-Guérin-based breast cancer vaccine that coexpresses multiple tandem repeats of MUC1 and CD80 breaks the immune tolerance and inhibits MUC1-positive breast cancer growth.
2081 19877891 In the present study, we constructed a novel Bacillus Calmette-Guérin-based breast cancer vaccine that coexpressed four VNTRs (variable-number tandem repeats) of MUC1 and CD80 (rBCG-MVNTR4-CD80).
2082 19877891 In addition, CD4 and CD8-positive lymphocytes in tumors from rBCG-MVNTR4-CD80-immunized animals were detected.
2083 19877891 These data showed that rBCG-MVNTR4-CD80 immunization elicited tumor-specific immune response, which closely related with the B7 molecule (CD80), indicating that the vaccine may be a good candidate for MUC1-positive breast cancer immunotherapy.
2084 19935776 We used a rVV encoding gp100(280-288), Melan-A/MART-1(27-35) and tyrosinase(1-9) HLA-A0201 restricted epitopes and CD80 and CD86 costimulatory molecules in stage III and IV melanoma patients in a phase 1/2 trial.
2085 19935776 Of 15 patients initiating treatment, including two cycles of IN immunization, each comprising one rVV administration and three recall injections of the corresponding peptides, accompanied by subcutaneous granulocyte macrophage-colony stimulating factor supplementation, five withdrew due to progressing disease.
2086 19952956 Administration of CTX increased the percentage of CD3, CD4, and CD8 cells with the increase in tumors being significantly greater than in spleens, and it also increased the percentage of B cells in spleens and tumors.
2087 19952956 Furthermore, CTX dramatically increased the frequency of tumor-infiltrating CD4 and CD8 cells containing interferon gamma, of cells expressing NK1.1, and of cells expressing the dendritic cell markers CD11c, CD80, and CD86, with the greatest increases seen among tumor-infiltrating lymphoid cells (TIL) from mice with small tumors.
2088 19952956 Although CTX decreased the percentage of TIL that expressed CD4 or CD8 together with CD25 and FoxP3 and were therefore considered to be regulatory T cells, it increased the frequency of TIL that stained for Gr1/CD11b, a marker for myeloid-derived suppressor cells.
2089 20002303 The DC population was expanded in BALB/C mice (H-2(d) ) by hydrodynamic injection of a plasmid pUMVC3-hFLex expressing the secreted portion of the human Fms-like tyrosine kinase receptor-3 ligand (hFlt3).
2090 20002303 Cellular immune responses were determined with respect to secretion of INFγ and IL2 by CD4(+) cells and cytotoxic T-lymphocyte (CTL) assays in vitro; inhibition of tumour cell growth was employed for the assessment of CD8(+) generated activity in vivo.
2091 20002303 We found that Flt3L treatment expanded the DC population in the spleen to 43%, and such cells displayed a striking upregulation of CD86 as well as CD80 and CD40 co-stimulating molecules.
2092 20010627 FC-CD40L showed an enhanced expression of CD80, CD86, CD54 and MHC class II molecules and elicited a strong in vitro immune response in a syngeneic mixed lymphocyte reaction.
2093 20010627 Splenocytes from mice treated with FC-CD40L had a dramatic increase in the production of IL-17, IL-6 and IFN-gamma, compared with controls.
2094 20011972 Using the A/J mouse and a syngeneic neuroblastoma cell line AGN2a, we induced a strong anti-neuroblastoma cellular immune response when AGN2a transfected to express costimulatory molecules (CD80/CD86/CD54/CD137L) was used as a vaccine in the context of regulatory T cell blockade.
2095 20017106 Our results showed that 1) HPV18E7 gene transfer did not change the typical morphology of mature DC, 2) the representative phenotypes of mature DC (CD80, CD86, and CD83) were highly expressed in HPV18E7- DC (81.6%, 80.5%, and 86.6%, respectively), 3) the expression level of 18E7 protein in HPV18E7-DC was 47.5%, and 4) the specific cytotoxicity against EC cells was significantly higher than that in controls (p<0.01).
2096 20022123 This FcgammaR ligation induced a significantly enhanced expression of Major Histocompatibility complex (MHCII) class II and the costimulatory molecules CD80/86 and CD40 by MoDC compared with immature MoDC.
2097 20022123 The F4-IC induced DC maturation correlated with significant higher expression levels of several pro-inflammatory cytokines such as interleukine (IL) 1beta, IL-6 and Tumor necrosis factor alpha, the chemokine IL-8 and IL-12p40 in comparison with immature MoDC.
2098 20149524 Members of the TNF ligand superfamily and the TNFR superfamily contribute to this costimulatory molecule signaling.
2099 20149524 Infection of DCs with Ad-tPSMA-IRES-m4-1BBL induced tPSMA-specific proliferative responses and up-regulated CD80 and CD86 s signaling molecules.
2100 20176741 Day 3 ROS(lo) DCs were highly responsive to TLR stimuli such as LPS and zymosan by rapid upregulation of CD80, CD86, and MHC class II, in contrast to the low response of day 6 ROS(hi) DCs.
2101 20176741 ROS(hi) DCs could not initiate and sustain a significant level of NF-kappaB phosphorylation in response to LPS and zymosan, although demonstrating hyperactivation of p38 MAPK by LPS, in a fashion disparate to ROS(lo) DCs.
2102 20332049 Expression of co-stimulatory molecules (CD40, CD80, CD86, and MHC-II) and cytokines (IL-12p40, TNF-alpha, and IFN-gamma) was increased in BMDC treated with LT-IIa-B(5).
2103 20417300 In this paper, we studied the immunostimulatory activity of the recombinant BCG strains in vitro and found out that rBCG-A(N)-E-A(C) activated THP-1 cells and induced higher expression levels of CD86, CD80, CD40 and HLA-DR, especially increased the ratio of CD86/CD80.
2104 20417300 Moreover, rBCG-A(N)-E-A(C) up-regulated the expression of EFHD2, ACTB and ACTG1 in the macrophages and improved the ability of antigen presentation and the CD8(+) T-cells immune response.
2105 20424184 These DCs (vaccine DCs) showed high expression of CD80, CD86, and CD83 and secreted interleukin-12.
2106 20435931 Knockdown of CD40, CD80, and CD86, prior to loading DCs with the arthritogenic Ag collagen II, led to a population of cells that could effectively suppress onset of collagen-induced arthritis.
2107 20435931 Disease suppression was associated with inhibition of collagen II-specific Ab production and suppression of T cell recall responses.
2108 20435931 Downregulation of IL-2, IFN-gamma, TNF-alpha, and IL-17 and increased FoxP3(+) cells with regulatory activity were observed in collagen-induced arthritis mice treated with siRNA-transfected DCs.
2109 20502628 The 40K-OMP-specific CD4(+) T cells induced by oral 40K-OMP plus CpG ODN produced both Th1 (IFN-gamma) and Th2 (IL-4) cytokines.
2110 20502628 Furthermore, increased frequencies of CD11c(+)B220(+) DCs and CD11c(+)CD11b(+) DCs with up-regulated expression of CD80, CD86, CD40 and MHC II molecules were noted in spleen, Peyer's patches and cervical lymph nodes.
2111 20599915 Ursolic acid isolated from Uncaria rhynchophylla activates human dendritic cells via TLR2 and/or TLR4 and induces the production of IFN-gamma by CD4+ naïve T cells.
2112 20599915 The expression levels of CD1a, CD80, CD83, CD86, HLA-DR and CCR7 on Ursolic acid-primed dendritic cells was slightly enhanced.
2113 20599915 Moreover, Ursolic acid-primed dendritic cells expressed levels of mRNA coding for both TLR2 and TLR4.
2114 20599915 The majority of cells produced considerable interferon-gamma (IFN-gamma), but also small amounts of interleukin (IL-4)-4.
2115 20599915 Ursolic acid-primed dendritic cells have an intermediate migratory capacity towards CCL19 and CCL21.
2116 20599915 These results suggest that Ursolic acid modulates human dendritic cells function in a fashion that favors Th1 polarization via the activation of IL-12p70 dependent on TLR2 and/or TLR4, and may be used on dendritic cells-based vaccines for cancer immunotherapy.
2117 20863822 There was statistically significant upregulation of costimulatory molecules and maturation markers (CD86, CD83, CD80 and CL II) in DC loaded with cryotreated whole tumour cells compared to both control DC and DC matured with LPS (P < 0.001).
2118 20863822 There was a significant increase in stimulatory cytokines gene expression (IL-2, IL-12, IL-15, IL-18 and IFN-γ).
2119 20863822 The effect of different freezing temperature was equal. cDNA microarray analysis showed upregulation of interleukin 1 (IL-1) and cycline dependent kinase inhibitor 1A (CDKN1A (p21) and downregulation of Caspase 8 and BCL2.
2120 20871626 Baculovirus-infected, bone marrow-derived DCs (BMDCs) display increased surface expression of costimulatory molecules, such as CD80, CD86 and major histocompatibility complex (MHC) classes I and II, and secrete interferons and other proinflammatory cytokines.
2121 20876821 It is thought that use of formalin deconforms viral epitopes of RSV, resulting in poor Toll-like receptor (TLR) stimulation; suboptimal maturation of dendritic cells with reduced production of activation factors CD40, CD80, and CD86; decreased germinal center formation in lymph nodes; and the production of nonprotective antibodies.
2122 21051091 We prepared mature allogeneic dendritic cells from bone marrow and then assessed their phenotype (CD80, CD83, CD86, CD1a, CD11c, CD40 and MHC II), antigen uptake and presenting abilities.
2123 21068778 Allogeneic gene-modified tumor cells (RCC-26/IL-7/CD80) as a vaccine in patients with metastatic renal cell cancer: a clinical phase-I study.
2124 21068778 Therefore, in our clinical study, 10 human leukocyte antigen (HLA)-A(*)0201(+) patients with histologically-confirmed progressive metastatic clear cell RCC were immunized repetitively over 22 weeks with 2.5-40 × 10(6) interleukin (IL)-7/CD80 cotransfected allogeneic HLA-A(*)0201(+) tumor cells (RCC26/IL-7/CD80).
2125 21068778 However, vaccination with allogeneic RCC26/IL-7/CD80 tumor cells was not able to induce TH1-polarized immune responses.
2126 21068778 Allogeneic gene-modified tumor cells (RCC-26/IL-7/CD80) as a vaccine in patients with metastatic renal cell cancer: a clinical phase-I study.
2127 21068778 Therefore, in our clinical study, 10 human leukocyte antigen (HLA)-A(*)0201(+) patients with histologically-confirmed progressive metastatic clear cell RCC were immunized repetitively over 22 weeks with 2.5-40 × 10(6) interleukin (IL)-7/CD80 cotransfected allogeneic HLA-A(*)0201(+) tumor cells (RCC26/IL-7/CD80).
2128 21068778 However, vaccination with allogeneic RCC26/IL-7/CD80 tumor cells was not able to induce TH1-polarized immune responses.
2129 21068778 Allogeneic gene-modified tumor cells (RCC-26/IL-7/CD80) as a vaccine in patients with metastatic renal cell cancer: a clinical phase-I study.
2130 21068778 Therefore, in our clinical study, 10 human leukocyte antigen (HLA)-A(*)0201(+) patients with histologically-confirmed progressive metastatic clear cell RCC were immunized repetitively over 22 weeks with 2.5-40 × 10(6) interleukin (IL)-7/CD80 cotransfected allogeneic HLA-A(*)0201(+) tumor cells (RCC26/IL-7/CD80).
2131 21068778 However, vaccination with allogeneic RCC26/IL-7/CD80 tumor cells was not able to induce TH1-polarized immune responses.
2132 21076061 Immunologically, SLIT resulted in increased IL-10 production, programmed cell death ligand 1 expression, and concentration of allergen-specific IgG4, as well as in the reduction of CD80 and CD86 expression and IL-4 production.
2133 21093448 Monocytes enriched from HIV-1-infected highly active antiretroviral therapy (HAART)-treated patients were cultured for three days with granulocyte-macrophage colony-stimulating factor and alpha-interferon.
2134 21093448 Flow cytometry analysis of thawed DC vaccines showed expression of DC differentiation markers: CD1b/c, CD14, HLA-DR, CD11c, co-stimulatory molecule CD80 and DC maturation marker CD83.
2135 21093448 DCs were capable of eliciting an HIV-1-antigen-specific response, as measured by expansion of autologous CD4(+) and CD8(+) T-cells.
2136 21093448 The expanded T-cells secreted gamma-IFN and interleukin (IL)-13, but not IL-10.
2137 21093495 Our results showed that the infection of bmDCs with SA14-14-2 resulted in viral replication and upregulation of bmDC maturation marker molecules (CD40, CD80, CD83 and MHC I).
2138 21093495 SA14-14-2 infection also stimulated the production of interferon-α (IFN-α), monocyte chemoattractant protein-1 (MCP-1/CCL2), tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) of bmDC.
2139 21105162 Compared with OVA-NPs-treated BMDCs, stimulation with OVA-NPs/protamine led to significantly upregulation of CD80, CD86, and CD83, increased secretion of IL-12p70, and decreased production of IL-4 by BMDCs.
2140 21115722 Nasal immunization with a fusion protein consisting of the hemagglutinin A antigenic region and the maltose-binding protein elicits CD11c(+) CD8(+) dendritic cells for induced long-term protective immunity.
2141 21115722 Analysis of cytokine responses showed that nasal administration of 25k-hagA-MBP induced antigen-specific CD4(+) T cells producing interleukin 4 (IL-4) and IL-5, but not gamma interferon (IFN-γ), in the spleen and cervical lymph nodes (CLNs).
2142 21115722 Furthermore, increased numbers of CD11c(+) CD8α(+), but not CD11c(+) CD11b(+) or CD11c(+) B220(+), dendritic cells with upregulated expression of CD80, CD86, CD40, and major histocompatibility complex class II (MHC II) molecules were noted in the spleen, CLNs, and nasopharynx-associated lymphoreticular tissues (NALT).
2143 21150714 Here, we show that interferon-γ is a key cytokine conditioning the dendritic cell to induce the expression of CD40, CD80, CD86, and CD54 on Dex, endowing them with direct and potent peptide-dependent CD8(+) T-cell-triggering potential in vitro and in vivo.
2144 21300103 Moreover, both vesicles caused significant activation of APCs as revealed by release of proinflammatory cytokines (IL-6, IL-12, TNF-α) and enhanced expression of co-stimulatory signals and maturation markers (CD80, CD86, MHCII), which was significantly higher for smegmosomes as compared to leptosomes.
2145 21368092 HBHA induced DC maturation in a TLR4-dependent manner, elevating expression of the surface molecules CD40, CD80, and CD86, MHC classes I and II and the proinflammatory cytokines IL-6, IL-12, IL-1β, TNF-α, and CCR7, as well as stimulating the migratory capacity of DCs in vitro and in vivo.
2146 21368092 Mechanistic investigations established that MyD88 and TRIF signaling pathways downstream of TLR4 mediated secretion of HBHA-induced proinflammatory cytokines.
2147 21368092 HBHA-treated DCs activated naïve T cells, polarized CD4(+) and CD8(+) T cells to secrete IFN-γ, and induced T-cell-mediated cytotoxicity.
2148 21369988 A combination of RENCA lysates and AbOmpA up-regulated the surface expression of co-stimulatory molecules, CD80 and CD86, and the antigen presenting molecules, major histocompatibility (MHC) class I and class II, in DCs.
2149 21369988 DCs pulsed with a combination of CA9 and AbOmpA effectively secreted IL-12 but not IL-10.
2150 21369988 DCs pulsed with CA9 and AbOmpA elicited the secretion of interferon-γ and IL-2 in T cells.
2151 21371582 Two weeks later, OVA specific antibodies in serum; concanavalin A (Con A), OVA stimulated splenocyte proliferation, CD4/CD8/CD80/CD86 analysis in spleen cells and its estimation of cytokines (IL-2 and IFN gamma) from cell culture supernatant were measured.
2152 21371582 At a dose of 80 μg (p<0.001), there was a significant increase in the CD4/CD8 and CD80/CD86 analysis in spleen cells and cytokine (IL-2 and IFN-gamma) profile in the spleen cell culture supernatant was observed.
2153 21371582 Two weeks later, OVA specific antibodies in serum; concanavalin A (Con A), OVA stimulated splenocyte proliferation, CD4/CD8/CD80/CD86 analysis in spleen cells and its estimation of cytokines (IL-2 and IFN gamma) from cell culture supernatant were measured.
2154 21371582 At a dose of 80 μg (p<0.001), there was a significant increase in the CD4/CD8 and CD80/CD86 analysis in spleen cells and cytokine (IL-2 and IFN-gamma) profile in the spleen cell culture supernatant was observed.
2155 21389871 The resulting DCs showed strongly-enhanced IL-12p70 production on subsequent T-cell interaction compared with immature DCs (average of 19-fold enhancement) and nonpolarized IL-1β/TNF-α/IL-6/PGE(2)-matured "standard" DCs (average of 215-fold enhancement).
2156 21389871 Additional inclusion of polyinosinic: polycytidylic acid during NK-DC cocultures optimized the expression of CD80, CD86, CD40, and HLA-DR on the resulting (NK)DC1, increased their CCR7-mediated migratory responsiveness to the lymph node-associated chemokine CCL21, and further enhanced their IL-12-producing capacity.
2157 21394107 Although in cancer patients, TAA-specific CD4+ and CD8+ cells are often present, they are not able to control tumor growth.
2158 21394107 We tested in Her2/neu+ breast cancer and HPV-16 E6/E7+ cervical cancer mouse models, whether intratumoral expression of immunostimulatory proteins (ISPs), for example, recombinant antibodies (αCTLA-4, αCD137, αCD3), cyto/chemokines (IL-15, LIGHT, mda-7) and costimulatory ligands (CD80), through adenovirus(Ad)-mediated gene transfer would overcome resistance.
2159 21439315 Extracellular vesicles purified from the Ag-pulsed DCs expressed surface proteins associated with DC-derived exosomes, including major histocompatibility complex proteins (MHC I and MHC II), CD80, flotillin, and heat shock protein (HSP70).
2160 21439315 Chickens immunized with pulsed DCs or exosomes exhibited (a) higher numbers of caecal tonsil and spleen cells expressing IgG and/or IgA antibodies that were reactive with E. tenella Ag, (b) greater numbers of IL-2-, IL-16-, and IFN-γ-producing cells, and (c) higher E. tenella Ag-driven cell proliferation, compared with chickens immunized with Ag in the absence of DCs or exosomes.
2161 21463625 DCs were generated from peripheral blood monocytes with interleukin-4 (IL-4) and granulocyte-macrophage colony-stimulating factor (GM-CSF).
2162 21463625 Compared to DCs treated with E7 in a 2-D culture model, the expression of co-stimulatory molecules CD80 and CD40 were significantly increased in the 3-D model (p<0.05), and a remarkable increase of IL-12 p70 was observed.
2163 21487111 TLR7 and TLR8 are intracellular sensors activated by single-stranded RNA species generated during viral infections.
2164 21487111 Various synthetic small molecules can also activate TLR7 or TLR8 or both through an unknown mechanism.
2165 21487111 Notably, direct interaction between small molecules and TLR7 or TLR8 has never been shown.
2166 21487111 All fluorescent compounds induced the production of IFN-α, TNF-α, and IL-6 and the up-regulation of CD80 and CD86 by pDCs showing they retained TLR7-stimulating activity.
2167 21493800 Priming CD8+ T cells with dendritic cells matured using TLR4 and TLR7/8 ligands together enhances generation of CD8+ T cells retaining CD28.
2168 21493800 Maturation of DCs with lipopolysaccharide (LPS; TLR4) concurrently with R848 (TLR7/8) induced a heterogeneous population of DCs that produced high levels of IL12 p70.
2169 21493800 Compared with DCs matured with LPS or R848 alone, the DC population matured with both adjuvants primed CD8+ T-cell responses containing an increased proportion of antigen-specific T cells retaining CD28 expression.
2170 21493800 Priming with a homogenous subpopulation of LPS/R848-matured DCs that were CD83(Hi)/CD80+/CD86+ reduced this CD28+ subpopulation and induced T cells with an effector cytokine signature, whereas priming with the less mature subpopulations of DCs resulted in minimal T-cell expansion.
2171 21499439 The expression of CD1a, CD38, CD40, CD54, CD80, CD83, CD86, HLA-DR and CCR7 on URC-primed DC was enhanced.
2172 21499439 The production of IL-12p70 by URC-primed DC was inhibited by the anti-Toll-like receptor 4 (TLR4) monoclonal antibody (mAb), but partially abolished by anti-TLR2 mAb. mRNA coding for TLR2 and TLR4 was expressed in URC-primed DC.
2173 21499439 DC matured with URC had an intermediate migratory capacity towards CCL19 and CCL21.
2174 21528289 This is an effective alternative to somatic gene therapy strategies using genes coding for ligands of CD28 such as CD80 (B7-1) or CD86 (B7-2).
2175 21528289 The bsAb HN x CD28 attaches with its anti-HN binding site to the NDV derived hemagglutinin-neuraminidase (HN) molecule which serves as a common foreign anchoring molecule in the vaccine.
2176 21528325 Tumour vaccines expressing IL-2, CD80, and IL-2 plus CD80 gene.
2177 21528325 Experiments were designed to investigate immunogenicity and therapeutic efficacy of tumour vaccines constructed by transfection of poorly immunogenic murine sarcoma Mc12 with synergistic CD80 and IL-2 genes.
2178 21528325 Immunization/challenge experiments demonstrated that both, IL-2(+) and IL-2(+) plus CD80(+) live cell vaccines can exert an immunizing stimulus, the IL-2(+) plus CD80(+) vaccine being superior to the IL-2(+) vaccine.
2179 21528325 Preimmunization with IL-2(+) and IL-2(+) plus CD80(+) vaccines induced regressions of a proportion of the parental Mc12 challenge inocula after their temporary growth.
2180 21528325 Areas of necrosis and extensive infiltration with Mac1(+) and CD4(+) leukocytes have been observed in the regressing sarcomas.
2181 21528325 When the therapeutic efficacy of the irradiated CD80(+), IL-2(+), and mixed CD80(+) plus IL-2(+) vaccines was compared, it was found that the insertion of the IL-2, but not CD80 gene alone was efficient.
2182 21528325 The mixed IL-2(+) plus CD80(+) tumour vaccine was able to protect and prolong survival of a higher proportion of mice than the IL-2(+) tumour vaccine.
2183 21528325 Tumour vaccines expressing IL-2, CD80, and IL-2 plus CD80 gene.
2184 21528325 Experiments were designed to investigate immunogenicity and therapeutic efficacy of tumour vaccines constructed by transfection of poorly immunogenic murine sarcoma Mc12 with synergistic CD80 and IL-2 genes.
2185 21528325 Immunization/challenge experiments demonstrated that both, IL-2(+) and IL-2(+) plus CD80(+) live cell vaccines can exert an immunizing stimulus, the IL-2(+) plus CD80(+) vaccine being superior to the IL-2(+) vaccine.
2186 21528325 Preimmunization with IL-2(+) and IL-2(+) plus CD80(+) vaccines induced regressions of a proportion of the parental Mc12 challenge inocula after their temporary growth.
2187 21528325 Areas of necrosis and extensive infiltration with Mac1(+) and CD4(+) leukocytes have been observed in the regressing sarcomas.
2188 21528325 When the therapeutic efficacy of the irradiated CD80(+), IL-2(+), and mixed CD80(+) plus IL-2(+) vaccines was compared, it was found that the insertion of the IL-2, but not CD80 gene alone was efficient.
2189 21528325 The mixed IL-2(+) plus CD80(+) tumour vaccine was able to protect and prolong survival of a higher proportion of mice than the IL-2(+) tumour vaccine.
2190 21528325 Tumour vaccines expressing IL-2, CD80, and IL-2 plus CD80 gene.
2191 21528325 Experiments were designed to investigate immunogenicity and therapeutic efficacy of tumour vaccines constructed by transfection of poorly immunogenic murine sarcoma Mc12 with synergistic CD80 and IL-2 genes.
2192 21528325 Immunization/challenge experiments demonstrated that both, IL-2(+) and IL-2(+) plus CD80(+) live cell vaccines can exert an immunizing stimulus, the IL-2(+) plus CD80(+) vaccine being superior to the IL-2(+) vaccine.
2193 21528325 Preimmunization with IL-2(+) and IL-2(+) plus CD80(+) vaccines induced regressions of a proportion of the parental Mc12 challenge inocula after their temporary growth.
2194 21528325 Areas of necrosis and extensive infiltration with Mac1(+) and CD4(+) leukocytes have been observed in the regressing sarcomas.
2195 21528325 When the therapeutic efficacy of the irradiated CD80(+), IL-2(+), and mixed CD80(+) plus IL-2(+) vaccines was compared, it was found that the insertion of the IL-2, but not CD80 gene alone was efficient.
2196 21528325 The mixed IL-2(+) plus CD80(+) tumour vaccine was able to protect and prolong survival of a higher proportion of mice than the IL-2(+) tumour vaccine.
2197 21528325 Tumour vaccines expressing IL-2, CD80, and IL-2 plus CD80 gene.
2198 21528325 Experiments were designed to investigate immunogenicity and therapeutic efficacy of tumour vaccines constructed by transfection of poorly immunogenic murine sarcoma Mc12 with synergistic CD80 and IL-2 genes.
2199 21528325 Immunization/challenge experiments demonstrated that both, IL-2(+) and IL-2(+) plus CD80(+) live cell vaccines can exert an immunizing stimulus, the IL-2(+) plus CD80(+) vaccine being superior to the IL-2(+) vaccine.
2200 21528325 Preimmunization with IL-2(+) and IL-2(+) plus CD80(+) vaccines induced regressions of a proportion of the parental Mc12 challenge inocula after their temporary growth.
2201 21528325 Areas of necrosis and extensive infiltration with Mac1(+) and CD4(+) leukocytes have been observed in the regressing sarcomas.
2202 21528325 When the therapeutic efficacy of the irradiated CD80(+), IL-2(+), and mixed CD80(+) plus IL-2(+) vaccines was compared, it was found that the insertion of the IL-2, but not CD80 gene alone was efficient.
2203 21528325 The mixed IL-2(+) plus CD80(+) tumour vaccine was able to protect and prolong survival of a higher proportion of mice than the IL-2(+) tumour vaccine.
2204 21528325 Tumour vaccines expressing IL-2, CD80, and IL-2 plus CD80 gene.
2205 21528325 Experiments were designed to investigate immunogenicity and therapeutic efficacy of tumour vaccines constructed by transfection of poorly immunogenic murine sarcoma Mc12 with synergistic CD80 and IL-2 genes.
2206 21528325 Immunization/challenge experiments demonstrated that both, IL-2(+) and IL-2(+) plus CD80(+) live cell vaccines can exert an immunizing stimulus, the IL-2(+) plus CD80(+) vaccine being superior to the IL-2(+) vaccine.
2207 21528325 Preimmunization with IL-2(+) and IL-2(+) plus CD80(+) vaccines induced regressions of a proportion of the parental Mc12 challenge inocula after their temporary growth.
2208 21528325 Areas of necrosis and extensive infiltration with Mac1(+) and CD4(+) leukocytes have been observed in the regressing sarcomas.
2209 21528325 When the therapeutic efficacy of the irradiated CD80(+), IL-2(+), and mixed CD80(+) plus IL-2(+) vaccines was compared, it was found that the insertion of the IL-2, but not CD80 gene alone was efficient.
2210 21528325 The mixed IL-2(+) plus CD80(+) tumour vaccine was able to protect and prolong survival of a higher proportion of mice than the IL-2(+) tumour vaccine.
2211 21528325 Tumour vaccines expressing IL-2, CD80, and IL-2 plus CD80 gene.
2212 21528325 Experiments were designed to investigate immunogenicity and therapeutic efficacy of tumour vaccines constructed by transfection of poorly immunogenic murine sarcoma Mc12 with synergistic CD80 and IL-2 genes.
2213 21528325 Immunization/challenge experiments demonstrated that both, IL-2(+) and IL-2(+) plus CD80(+) live cell vaccines can exert an immunizing stimulus, the IL-2(+) plus CD80(+) vaccine being superior to the IL-2(+) vaccine.
2214 21528325 Preimmunization with IL-2(+) and IL-2(+) plus CD80(+) vaccines induced regressions of a proportion of the parental Mc12 challenge inocula after their temporary growth.
2215 21528325 Areas of necrosis and extensive infiltration with Mac1(+) and CD4(+) leukocytes have been observed in the regressing sarcomas.
2216 21528325 When the therapeutic efficacy of the irradiated CD80(+), IL-2(+), and mixed CD80(+) plus IL-2(+) vaccines was compared, it was found that the insertion of the IL-2, but not CD80 gene alone was efficient.
2217 21528325 The mixed IL-2(+) plus CD80(+) tumour vaccine was able to protect and prolong survival of a higher proportion of mice than the IL-2(+) tumour vaccine.
2218 21533347 Two genes, the gene coding for IL-2 and the gene encoding the CD80 molecule, were inserted into murine sarcoma MC12 cells.
2219 21533347 Tumorigenicity of the clones declined with increasing production of IL-2 as well as with the increasing expression of the CD80 molecule.
2220 21533347 When the tumorigenicity of the clones carrying an inserted IL-2 gene was compared with that of the clones carrying an inserted CD80 gene, it was found that the insertion of the IL-2 gene suppresses tumorigenicity more efficiently than insertion of the CD80 gene.
2221 21533347 Admixture of the IL-2-producing MC12 clones to the tumorigenic CD80(+) MC12 cell doses could completely inhibit the tumorigenicity of the CD80(+) cells.
2222 21533347 Two genes, the gene coding for IL-2 and the gene encoding the CD80 molecule, were inserted into murine sarcoma MC12 cells.
2223 21533347 Tumorigenicity of the clones declined with increasing production of IL-2 as well as with the increasing expression of the CD80 molecule.
2224 21533347 When the tumorigenicity of the clones carrying an inserted IL-2 gene was compared with that of the clones carrying an inserted CD80 gene, it was found that the insertion of the IL-2 gene suppresses tumorigenicity more efficiently than insertion of the CD80 gene.
2225 21533347 Admixture of the IL-2-producing MC12 clones to the tumorigenic CD80(+) MC12 cell doses could completely inhibit the tumorigenicity of the CD80(+) cells.
2226 21533347 Two genes, the gene coding for IL-2 and the gene encoding the CD80 molecule, were inserted into murine sarcoma MC12 cells.
2227 21533347 Tumorigenicity of the clones declined with increasing production of IL-2 as well as with the increasing expression of the CD80 molecule.
2228 21533347 When the tumorigenicity of the clones carrying an inserted IL-2 gene was compared with that of the clones carrying an inserted CD80 gene, it was found that the insertion of the IL-2 gene suppresses tumorigenicity more efficiently than insertion of the CD80 gene.
2229 21533347 Admixture of the IL-2-producing MC12 clones to the tumorigenic CD80(+) MC12 cell doses could completely inhibit the tumorigenicity of the CD80(+) cells.
2230 21533347 Two genes, the gene coding for IL-2 and the gene encoding the CD80 molecule, were inserted into murine sarcoma MC12 cells.
2231 21533347 Tumorigenicity of the clones declined with increasing production of IL-2 as well as with the increasing expression of the CD80 molecule.
2232 21533347 When the tumorigenicity of the clones carrying an inserted IL-2 gene was compared with that of the clones carrying an inserted CD80 gene, it was found that the insertion of the IL-2 gene suppresses tumorigenicity more efficiently than insertion of the CD80 gene.
2233 21533347 Admixture of the IL-2-producing MC12 clones to the tumorigenic CD80(+) MC12 cell doses could completely inhibit the tumorigenicity of the CD80(+) cells.
2234 21722668 In the present work we demonstrated that recombinant human calcineurin subunit B (rhCnB) stimulated the expression of the surface molecules CD83, CD80, CD86, CD40, and HLA-DR.
2235 21722668 It also promoted secretion of inflammatory cytokines IL-6, TNF-α, and IL-1β by human PBMC-derived dendritic cells.
2236 21722668 Transcript levels of cytokines such as IL-4, IL-10, and IFN-γ in the splenocytes were also upregulated when in vitro stimulated with pneumolysin.
2237 21746857 A Salmonella vector vaccine expressing the saliva-binding region (SBR) of the adhesin AgI/II of Streptococcus mutans has been shown to induce a mixed Th1/Th2 anti-SBR immune response in mice and to require Toll-like receptor 2 (TLR2), TLR4, and MyD88 signaling for the induction of mucosal anti-SBR antibody responses.
2238 21746857 Bone marrow-derived DC from wild-type and TLR2, TLR4, and MyD88 knockout mice were stimulated with Salmonella vector BRD509, the SBR-expressing Salmonella vector vaccine BRD509(pSBRT7), or SBR protein, and the DC responses to different stimuli were compared by assessing costimulatory molecule expression, cytokine production, and signaling pathways.
2239 21746857 BRD509(pSBRT7) and BRD509 induced upregulation of CD80, CD86, CD40, and major histocompatibility complex class II (MHC II) expression.
2240 21746857 The low IL-12p40 and high IL-6 cytokine profile expressed by BRD509(pSBRT7)-stimulated DC may represent a shift toward a Th2 response, as suggested by the increased expression in Jagged-1.
2241 21764462 By day 3 (DC3), bovine monocyte-derived DCs stained positively for DC-specific receptors CD1, CD80/86, CD205, DC-Lamp and MMR.
2242 21778700 Gag-VLPs efficiently activated human monocyte-derived dendritic cells (MDDCs), eliciting MDDC maturation with an associated increase in the surface expression of CD80, CD86 and MHC classes I and II, MDDC proliferation and proinflammatory cytokine production.
2243 21811551 Dendritic cells (DC) are professional antigen presenting cells and with respect to impact of PFCE particles on DC function, we observed that markers of maturation for these cells (CD80, CD86) were also significantly elevated following labeling with larger PFCE particles (560 nm).
2244 21856352 When the plasmid contained both motifs, transfected murine macrophage-like RAW264.7 cells showed markedly increased levels of mRNA for immune molecules of Th1 (IFN-α, IL-12) and Th17 (IL-17, IL-23 and IL-6) responses and for T cell co-stimulatory molecules (CD80 and CD86) but not for a Th2 response (IL-4 and IL-10).
2245 21914064 The DNA of HBV S gene and the cDNA of the extracellular domain of human CD40 ligand were linked by cloning.
2246 21914064 Peripheral blood mononuclear cells (PBMC) from healthy adults were incubated and induced into dendritic cells (DC) in presence of granulocyte/macrophage colony-stimulating factor (GM-CSF) and interleukin-4(IL-4).
2247 21914064 We find that, compared with control groups, modification of DCs with HBV S-ecdCD40L fusion gene resulted in the activation of DCs with upregulated expression of immunologically important cell surface molecules (CD80, CD86 and HLA-DR) and proinflammatory cytokines (IL-12).
2248 21983157 The activation markers MHC-class-II, CD40, CD80 and CD86 on DCs were significantly upregulated by BCG-CS as compared to wild-type BCG (wt-BCG).
2249 21993523 We found that Rv0315 functionally activated DCs by augmenting the expression of the co-stimulatory molecules CD80 and CD86 as well as MHC class I/II molecules.
2250 21993523 Moreover, it increased DC secretion of the pro-inflammatory cytokines IL-6, IL-1β, and TNF-α.
2251 21993523 In addition, Rv0315-treated DCs accelerated the proliferation of CD4(+) and CD8(+) splenic T cells from Mtb-infected mice, with increased levels of IFN-γ, in syngeneic and allogeneic mixed lymphocyte reactions, indicating that Rv0315 contributes to Th1 polarization of the immune response.
2252 21994357 Interestingly, we show that upon activation by anti-CD40 and gamma interferon (IFN-γ), B cells from PKR(-/-) mice show diminished major histocompatibility complex class II (MHC II), CD80, and CD86 levels on the cell surface compared to wild-type (WT) mice.
2253 21994357 Our data also show that PKR is necessary for optimal expression of adhesion molecules, such as CD11a and ICAM-1, that are necessary for homotypic aggregation of B cells.
2254 21994357 Furthermore, in this report we demonstrate for the first time that upon CD40 ligation, PKR is rapidly phosphorylated and activated, indicating that PKR is an early and novel downstream mediator of CD40 signaling pathways.
2255 22015603 Our results demonstrated that treatment with the improved DC vaccine which was tumor cell lysate pulsed with M2 and OK (HMO-D), compared with H-D and HM-D, significantly increased cell surface markers (MHC-I and II, CD40, CD80, CD86 and CD11c) expression on DCs, enhanced Th1-type cytokines (IL-12, TNF-α and IFN-γ) production but not Th2-type cytokine (IL-5) production, induced remarkable high levels of lymphocytes proliferation and CD8(+) cytotoxic T-lymphocyte (CTL).
2256 22116674 Herpes simplex virus protein ICP47, encoded by US12 gene, strongly downregulates major histocompatibility complex (MHC) class-I antigen restricted presentation by blocking transporter associated with antigen processing (TAP) protein.
2257 22116674 To decrease viral vector antigenic immunodominance and MHC class-I driven clearance, we engineered recombinant vaccinia viruses (rVV) expressing ICP47 alone (rVV-US12) or together with endoplasmic reticulum (ER)-targeted Melan-A/MART-1(27-35) model tumor epitope (rVV-MUS12).
2258 22116674 In this study, we show that antigen presenting cells (APC), infected with rVV-US12, display a decreased ability to present TAP dependent MHC class-I restricted viral antigens to CD8+ T-cells.
2259 22116674 While HLA class-I cell surface expression is strongly downregulated, other important immune related molecules such as CD80, CD44 and, most importantly, MHC class-II are unaffected.
2260 22194898 DCs were evaluated for antigen uptake, and following maturation with LPS and IFN-gamma, DCs were assessed for expression of CD80, CD40, CD86, ICAM-1 and CCR7, production of IL-12p70 and IP-10, and induction of tumor-specific T-cell responses.
2261 22194898 Mature Day-7 DCs expressed the highest CD40 and ICAM-1, but mature Day-4 DCs produced the most IL-12p70 and IP-10.
2262 22365383 Neuropeptide Y (NPY) suppressed clinical experimental autoimmune encephalomyelitis (EAE) and reduced numbers of CD28+, CD11b+ and CD80+ cells among spinal cord infiltrating cells at the peak of disease in Dark Agouti rat strain.
2263 22365383 Suppression of EAE was accompanied by the reduced expression of costimulatory CD80 and CD86 molecules on ED1+ macrophages and OX62+ dendritic cells in draining lymph nodes during the inductive phase of EAE.
2264 22365383 An inhibitor of dipeptidyl peptidase 4, an enzyme which terminates the action of NPY on Y1 receptor subtype, did not sustain the suppressive effect of NPY on the EAE development, suggesting involvement of Y2 and Y5 receptors.
2265 22365383 Neuropeptide Y (NPY) suppressed clinical experimental autoimmune encephalomyelitis (EAE) and reduced numbers of CD28+, CD11b+ and CD80+ cells among spinal cord infiltrating cells at the peak of disease in Dark Agouti rat strain.
2266 22365383 Suppression of EAE was accompanied by the reduced expression of costimulatory CD80 and CD86 molecules on ED1+ macrophages and OX62+ dendritic cells in draining lymph nodes during the inductive phase of EAE.
2267 22365383 An inhibitor of dipeptidyl peptidase 4, an enzyme which terminates the action of NPY on Y1 receptor subtype, did not sustain the suppressive effect of NPY on the EAE development, suggesting involvement of Y2 and Y5 receptors.
2268 22415304 Rv0577 recognizes Toll-like receptor 2 (TLR2) and functionally induces DC maturation by augmenting the expression of cell surface molecules (CD80, CD86, and MHC class I and II) and proinflammatory cytokine production (TNF-α, IL-1β, IL-6, and IL-12p70) in DCs on MyD88-dependent signaling, mitogen-activated protein kinases, and nuclear factor κB signaling pathways.
2269 22415304 In addition, Rv0577-treated DCs activated naive T cells, effectively polarized CD4(+) and CD8(+) T cells to secrete IFN-γ and IL-2, and induced T-cell proliferation, indicating that this protein possibly contributes to Th1-polarization of the immune response.
2270 22415304 More important, unlike LPS, Rv0577-treated DCs specifically induced the proliferation of memory CD4(+)/CD8(+)CD44(high)CD62L(low) T cells in the spleen of M. tuberculosis-infected mice in a TLR2-dependent manner.
2271 22536391 MVA-C infection of human monocyte derived dendritic cells (moDCs) induced the expression of HIV-1 antigens at high levels from 2 to 8 hpi and triggered moDCs maturation as revealed by enhanced expression of HLA-DR, CD86, CD40, HLA-A2, and CD80 molecules.
2272 22536391 The immunogenic profiling in mice after DNA-C prime/MVA-C boost combination revealed activation of HIV-1-specific CD4 and CD8 T cell memory responses that are polyfunctional and with effector memory phenotype.
2273 22552381 Antibody blocking of monocyte TLR4 inhibited surface expression, determined by flow cytometry, of the major histocompatibility complex class I, CCR7, CD80, CD83 and CD86 on TAPCells, reduced interleukin (IL)-6 and tumor necrosis factor -α gene expression evaluated by qRT-PCR, and also inhibited the TAPCells-mediated interferon-γ (IFN-γ) secretion of melanoma-specific CD8(+) T cells determined by ELISpot (p < 0.01).
2274 22552381 Moreover, CD8(+) T-cell activation capacity was significantly reduced in TAPCells bearing the TLR4 Asp299Gly receptor (p < 0.05).
2275 22561311 We have previously reported that defined cocktails of cytokines, involving TNFα and IFNγ, induce mature type-1 polarized DCs (DC1s) which produce strongly elevated levels of IL-12 and CXCL10/IP10 upon CD40 ligation compared to "standard" PGE₂-matured DCs (sDCs; matured with IL-1β, IL-6, TNFα, and PGE₂) and show higher CTL-inducing activity.
2276 22561311 Restimulated lymphocytes, or their culture supernatants, enhanced the maturation status of immature (i)DCs, elevating their expression of CD80, CD83 and CCR7, and the ability to produce IL-12p70 and CXCL10 upon subsequent CD40 ligation.
2277 22729616 The results indicate that both JEV strains are capable of inducing various cytokines (type-I IFN, TNFα, IL6 and IL8) and co-stimulatory molecules (CD86 and CD80) in MDMs.
2278 22884511 Our results showed that Ag85A gene transfected DCs expressed high levels of key surface markers such as CD80, CD86 and MHC-II.
2279 22884511 The infiltration of CD4(+) or CD8(+) T cell within established tumor treated by Ag85A-DC vaccine significantly increased as compared with control groups.
2280 22927979 RB51-infected wild type BMDCs were mature and activated as shown by significantly up-regulated expression of CD40, CD80, CD86, MHC-I, and MHC-II.
2281 22927979 RB51-infected WT BMDCs also stimulated the proliferation of CD4(+) and CD8(+) T cells compared to uninfected WT BMDCs.
2282 22939910 The hybrid cell lines expressed HLA class I and class II molecules, and the major T-cell costimulatory molecules, CD80 and CD86.
2283 22939910 The enhanced T-cell stimulation was inhibited by CTLA4-Ig fusion protein, and by blocking antibodies to MHC class I and class II molecules.
2284 22977597 The results indicated that the B16F10 tumor cell vaccine treated with MIT alone or in combination with reserpine (RP) and verapamil (VP) for 12 h triggered apoptosis, and that the expression of CD80, the MHC II class molecule, NKG2D and its ligand were significantly increased compared to the expression levels in the control group.
2285 23042534 We previously demonstrated that the ovalbumin (OVA)-specific CD4(+) T cell-based (OVA-T(EXO)) vaccine generated using OVA-pulsed dendritic cell (DC(OVA))-released exosomes (EXO(OVA)) stimulate CTL responses via IL-2 and costimulatory CD80 signaling.
2286 23060228 BMDCs in vitro and DCs in vivo also display upregulation of activation markers CD80 and CD86 when treated with microparticles, again with no difference in conjugated antibodies, even the agonistic CD40 antibody.
2287 23246902 Phenotypic maturation of BMDCs was confirmed by conventional scanning electron microscopy (SEM), flow cytometry (FCM) and functional maturation by transmission electron microscopy (TEM), cytochemistry assay, Acid phosphatase (ACP) activity, FITC-dextran, bio-assay and enzyme linked immunosorbent assay (ELISA).We found that RGP up-regulated the expression of CD40, CD80, CD83, CD86 and MHC II molecules of BMDCs, down-regulated pinocytosis and phagocytosis activity, induced IL-12 and TNF-α production of BMDCs.
2288 23269976 Our previously reported phase I clinical trial with the allogeneic gene-modified tumor cell line RCC-26/CD80/IL-2 showed that vaccination was well tolerated and feasible in metastatic renal cell carcinoma (RCC) patients.
2289 23277917 Secretion of the cytokines interferon-γ, interleukin-1β, interleukin-2 and interleukin-10 in the CD4(+) T cell : DC co-culture (with or without chemokine pre-treatment) were essentially the same.
2290 23277917 Chemokine programming of DCs with a 7 : 3 ratio of CCL3 : CCL19 followed by LPS treatment maintained partial immature phenotypes of DCs, as indicated by surface marker (CD80 and CD86) expression over time.
2291 23457630 TRIF is required for TLR4 mediated adjuvant effects on T cell clonal expansion.
2292 23457630 Activation of TLR4 by its ligands is mediated by engagement of the adapter proteins MyD88 (myeloid differentiation factor 88) and TRIF (Toll-interleukin 1 receptor domain-containing adapter inducing interferon-beta).
2293 23457630 Previously, we showed that TRIF, but not MyD88, plays an important role in allowing TLR4 agonists to adjuvant early T cell responses.
2294 23457630 In this study, we investigated the T cell priming events that are regulated specifically by the TRIF signaling branch of TLR4.
2295 23457630 We found that TRIF deficiency prevented the TLR4 agonist lipid A from enhancing T cell proliferation and survival in an adoptive transfer model of T cell priming.
2296 23457630 Importantly, TRIF alone caused CD86 and CD40 upregulation on splenic DC, but both TRIF and MyD88 were required for CD80 upregulation.
2297 23457630 The impairment of T cell adjuvant effects and defective DC maturation in TRIF (lps/lps) mice after TLR4 stimulation was mainly due to loss of type I IFN production, indicating that type I interferons are central to TLR4's adjuvant effects.
2298 23474022 The two molecules stimulated the proliferation of T-lymphocyte sub-sets (CD4/CD8) as well as the production of soluble mediators of Th1 (IL-2 and IFN-γ) and Th2 response (IL-4) in spleen cell culture supernatant.
2299 23474022 Furthermore, the two lipidated tripeptides enhanced the CD4, CD8, CD3 and CD19 cell populations as well as CD4/CD8 derived IL-2, IL-4, IFN-γ and TNF-α in whole blood of treated mice.
2300 23474022 Moreover, the two lipidated tripeptides enhanced the population of CD80 and CD86 in spleen-derived macrophages and did not show any hemolytic effect on rabbit RBCs.
2301 23620105 DCs were transfected with IDO small interfering RNA and mRNA encoding human telomerase reverse transcriptase (hTERT) or survivin, two universal tumour antigens.
2302 23620105 Silencing of IDO in DCs did not affect the expression of the co-stimulatory molecules CD80 and CD86, but enhanced the expression of the CCR7 and CD40 molecules.
2303 23620105 The immunisation with this novel DC cancer vaccine was well tolerated and all patients developed delayed-type hypersensitivity skin reaction and specific T-cell response against hTERT and survivin tumour antigens.
2304 23633956 Finally, we were able to reduce immunodominance after i.d., but not i.p. infection, using a VACV expressing the costimulators CD80 (B7-1) and CD86 (B7-2), which is notable because VACV-based vaccines incorporating these molecules are in clinical trials.
2305 23658796 The DCs that received the particle-bound PADRE displayed all features of fully mature DCs, such as high expression of the co-stimulatory molecules CD80, CD86, CD83, the MHC-II molecule HLA-DR, secretion of high levels of the biologically active IL-12 (IL-12p70) and induction of vigorous proliferation of naïve CD4(+) T cells.
2306 23658796 Furthermore, the maturation of DCs induced by particle-bound PADRE was shown to involve sphingosine kinase, calcium signaling from internal sources and downstream signaling through the MAP kinase and the p72syk pathways, and finally activation of the transcription factor NF-κB.
2307 23704211 Tumor-associated CD11c(+) cells invaded by cps were converted to immunostimulatory phenotypes, which expressed increased levels of the T-cell receptor costimulatory molecules CD80 and CD86.
2308 23704211 Indeed, intraperitoneal cps treatment triggered rejection of established ID8-VegfA tumors, an aggressive xenograft model of ovarian carcinoma, also conferring a survival benefit in a related aggressive model (ID8-Defb29/Vegf-A).
2309 23735481 In vitro experiments using mouse bone marrow-derived DC (BMDC) demonstrated that PSK induces DC maturation as shown by dose-dependent increase in the expression of CD80, CD86, MHCII, and CD40.
2310 23764536 The immunopotentiating activity of OmpA is mediated by its ability to bind and stimulate macrophages and up-regulate the surface expression of MHCII, CD80 and CD40, leading to activation of CD4(+) T cells to secrete cytokines and express chemokine receptor and IL-12Rβ2, thereby orchestrating the bridge between innate and adaptive immune responses.
2311 23774693 We demonstrated that LD1ED III possesses an inherent immunostimulation ability that can activate RAW 264.7 macrophage cells by up-regulating their expression of CD40, CD80, CD83, CD86 and MHC II, whereas D1ED III could not induce the up-regulation of these molecules.
2312 23781340 In this study, IFN-gamma treatment of bone marrow-derived DC, followed by incubation with the TLR2, TLR4, or TLR9 agonists, enhanced DC activation compared to TLR ligation alone.
2313 23781340 Most notably, the upregulation of CD40 with LPS stimulation and CD86 with CpG stimulation was observed in in vitro cultures.
2314 23781340 Similarly, IFN-gamma coinjected with TLR ligands was able to promote DC activation in vivo, with DCs migrating from the site of immunization to the popliteal lymph nodes demonstrating increased expression of CD80 and CD86.
2315 23799649 Afterwards, the investigation into the maturation activation on primary bone marrow-derived DCs (BMDCs) showed that both Man-LPD and Man-free LPD induced remarkable up-regulation of CD80, CD86 and CD40 on BMDCs.
2316 23804272 We have discovered a method to induce stable tolerogenic ability to dendritic cells ex vivo using a mixture of phosphorothioate-modified antisense DNA targeting the primary transcripts of CD40, CD80 and CD86.
2317 23825389 DCs treated with RpfB displayed features of mature and functional status, with elevated expression of cell surface molecules (CD80, CD86, and MHC class I and II) and proinflammatory cytokine production (TNF-α, IL-1β, IL-6, and IL-12p70).
2318 23825389 RpfB-treated DCs effectively polarized naïve CD4(+) and CD8(+) T cells to secrete IFN-γ and IL-2.
2319 23825389 Importantly, RpfB induced the expansion of memory CD4(+)/CD8(+)CD44(high)CD62L(low) T cells in the spleen of M. tuberculosis-infected mice.
2320 23876802 Gastric DC-LAMP-positive (DC-LAMP(+)) DCs express CD11c and high levels of HLA-DR but little CD80, CD83, and CD86.
2321 23881522 Using mouse models, we previously demonstrated that ovalbumin (OVA)-specific dendritic cell (DC)-released exosome (EXOOVA)-targeted CD4(+) T cell-based (OVA-TEXO) vaccine stimulates efficient cytotoxic T lymphocyte (CTL) responses via exosomal peptide/major histocompatibility complex (pMHC)-I, exosomal CD80 and endogenous IL-2 signaling; and long-term CTL memory by means of via endogenous CD40L signaling.
2322 23881522 We prepared HER2/neu-specific Neu-TEXO and HER2-TEXO vaccines using adenoviral vector (AdVneu and AdVHER2)-transfected DC (DCneu and DCHER2)-released EXOs (EXOneu and EXOHER2), and assessed their stimulatory effects on HER2/neu-specific CTL responses and antitumor immunity.
2323 23894722 TLR3 agonists improve the immunostimulatory potential of cetuximab against EGFR+ head and neck cancer cells.
2324 23894722 We investigated the effect of TLR3 agonists on cetuximab-mediated antibody-dependent cellular cytotoxicity (ADCC) against head and neck cancer (HNC) cells, as well as on dendritic cell (DC) maturation and cross-priming of epidermal growth factor receptor (EGFR)-specific CD8+ T cells.
2325 23894722 The DC-mediated cross priming of EGFR-specific CD8+ T cells was monitored upon in vitro stimulation with tetramer-based flow cytometry.
2326 23894722 The cytolytic activity of TLR3-stimulated NK cells differed among cells expressing different polymorphic variants of FcγRIIIa, and NK cells exposed to both poly-ICLC and cetuximab expressed higher levels of CD107a and granzyme B than their counterparts exposed to either stimulus alone.
2327 23894722 Poly-ICLC plus cetuximab also induced a robust upregulation of CD80, CD83 and CD86 on the surface of DCs, a process that was partially NK-cell dependent.
2328 23894722 Furthermore, DCs matured in these conditions exhibited improved cross-priming abilities, resulting in higher numbers of EGFR-specific CD8+ T cells.
2329 23935688 DsII-TN5 stimulated the expression of CD40, CD80, CD86, and IL-1 β in TCL-loaded DCs and downregulated the expression of TGF- β 1.
2330 23953841 Nanofibers were internalized by dendritic cells and macrophages at the injection site, and only dendritic cells that acquired the material increased their expression of the activation markers CD80 and CD86.
2331 23954198 Based on in vitro assay, 6-O-palmitoyl Agnuside (AG-3) was further taken up for detailed in vivo activity and found to significantly enhance the production of anti OVA IgG titer, neutralizing antibody (IgG1 and IgG2a) titer as well as soluble mediators of a Th1 (IL-2, IFN-γ)/Th2 response (IL-4) and proliferation of T lymphocyte subsets (CD4/CD8) and co stimulatory molecules CD80/CD86.
2332 24041689 Co-stimulatory signaling pathway triggered by the binding of B7.1/B7.2 (CD80/86) of antigen-presenting cells (APCs) to CD28 of T cells is required for optimal T-cell activation.
2333 24041689 Cytotoxic T lymphocyte-associated antigen-4 (CTLA-4) is a negative regulator of T cell activation, which competes with CD28 for B7.1/B7.2 binding with a greater affinity.
2334 24041689 To develop a novel therapeutics specifically targeting CTLA-4, we constructed a DNA vaccine by cloning the sequence of CTLA-4 fused with a transmembrane domain sequence of placental alkaline phosphatase (PLAP) into a mammalian expression plasmid, pVAC-1.
2335 24095953 We have shown that IFN-α 1) up-regulates the expression of MHC II, CD40, CD83, CD80 and CD86 molecules on BMDCs; 2) down-regulates the rates of pinocytosis and phagocytosis by BMDCs as evidenced by the results of decreased ACP, and FITC-dextran bio-assay; 3) enhances the ability of BMDCs to drive T cell function; and 4) induces higher levels of IL-12 and TNF-α secreted by BMDCs.
2336 24135577 The vaccine, human papillomavirus peptides with Candida, demonstrated partial maturation effects on Langerhans cells indicated by significantly up-regulated CD40 (p=0.00007) and CD80 (p<0.00001) levels, and showed T-cell proliferative capacity (p<0.00001) when presented by Langerhans cells in vitro.
2337 24135577 The cytokine profile (IL-1β, IL-6, IL-8, IL-10, IL-12p40, IL-23Ap19, IFN-γ and TNF-α) of Langerhans cells treated with the vaccine or Candida alone showed that IL-12p40 mRNA was most frequently induced, and IL-12p70 protein was detected in the supernatants.
2338 24135577 The presence of pattern recognition receptors known to associate with Candida albicans (DC-SIGN, dectin-1, dectin-2, galectin-3, mincle, mannose receptor, Toll-like receptors-1, 2, 4, 6 and 9) were demonstrated in all subjects.
2339 24137363 An analysis of the immune phenotypes of HLA2DR, CD80 and CD83 for the DCs and of CD3, CD8 and CD56 for the CIK cells, as well as negative detection of bacteria and endotoxin, were used as the quality standards.
2340 24146068 Exosomes were isolated and the typical exosomal protein markers, CD9, CD63, heat shock protein (Hsp) 70 and Hsp90, were found to be enriched in the exosomes derived from Rab27a‑overexpressing cells.
2341 24146068 Subsequently, these exosomes were demonstrated to be capable of upregulating major histocompatibility complex class II molecules as well as the co-stimulatory molecules CD80 and CD86 on dendritic cells (DCs), suggesting that more potent maturation of DCs was induced.
2342 24198843 The expression of the leukocyte surface markers such as phagocytic receptors CD11b, CD11c, CD14, and CD16/CD32 and the expression of the costimulatory molecules CD80, CD83, and CD86 were tested as well as the production of proinflammatory cytokines (IFN γ and IL-1 α) and growth factors (GM-CSF and FGFb) for cells of individual granulomas.
2343 24252697 In vitro, PS-F2 stimulated dendritic cells (DCs) to produce proinflammatory cytokines, including TNF-α, interleukin (IL)-6, and IL-12/IL-23 p40.
2344 24252697 PS-F2 also stimulated DCs to express the maturation markers CD40, CD80, CD86, and MHC class II.
2345 24252697 In a murine splenocyte culture, PS-F2 treatment resulted in elevated expression of T-bet and interferon (IFN)-γ in T lymphocytes.
2346 24273578 HSP70/CD80 DNA vaccine inhibits airway remodeling by regulating the transcription factors T-bet and GATA-3 in a murine model of chronic asthma.
2347 24336457 Furthermore, an in vitro mechanistic study showed that wolfberry supplementation enhanced maturation and activity of antigen-presenting dendritic cells (DCs) in aged mice, as indicated by phenotypic change in expression of DC activation markers major histocompatibility complex class II, cluster of differentiation (CD) 40, CD80, and CD86, and functional change in DC production of cytokines interleukin-12 and tumor necrosis factor-α as well as DC endocytosis.
2348 24336457 Also, adoptive transfer of wolfberry-treated bone marrow DCs (loaded with ovalbumin(323-339)-peptide) promoted antigen-specific T cell proliferation as well as interleukin-4 and interferon-γ production in CD4(+) T cells.
2349 24338222 In addition, we assessed the capacity of activated DCs to induce cytokine production and proliferation of lymphocytes.Listeria-derived protein fractions induced fully mature DCs expressing high costimulatory molecules such as CD80, CD86 and CD40.
2350 24343727 Using flow cytometry, we showed that rSjcPRMT1 slightly upregulated the expression of CD40, CD80, CD86, and MHC-II molecules of mouse bone marrow-derived dendritic cell (BMDC), indicating that rSjcPRMT1 could induce mouse BMDC to mature and, therefore, activate their immune response.
2351 24362470 Here, we found that colorectal cancer (CRC) cells treated with oxaliplatin (OXA) and/or 5-fluorouracil (5-Fu) released high levels of high-mobility group box 1 (HMGB1) and heat shock protein 70 (HSP70).
2352 24362470 After OXA/5-Fu therapy, the sera of CRC patients also exhibited increased levels of HMGB1 and HSP70, both of which are well-known DAMPs.
2353 24362470 The supernatants of dying CRC cells treated with OXA/5-Fu promoted mouse and human DC maturation, with upregulation of HLA-DR, CD80 and CD86 expression and enhancement of IL-1β, TNF-α, MIP-1α, MIP-1β, RANTES and IP-10 production.
2354 24362470 Vaccines composed of DCs pulsed with the supernatants of chemically stressed CRC cells induced a more significant IFN-γ-producing Th1 response both in vitro and in vivo.
2355 24362470 Furthermore, pulsing with the supernatants of chemically stressed CRC cells did not efficiently induce an IFN-γ-producing Th1 response in TLR4-deficient DCs.
2356 24383579 CD80, CD83, CD86 and CCR7) or on the production of cytokines (e.g.
2357 24383579 IL-12p70, IL-10 and IL-23).
2358 24383579 Interestingly, mDCs prestimulated with CCL21 showed higher levels of CXCL10 (IP-10) production, but not the production of CCL22, compared with untreated mDCs.
2359 24383579 IP-10 treatment during CTL generation with DCs dramatically enhanced tumour-specific CTL response compared with untreated CTLs, and these enhanced CTL-inducing functions of CCL21-treated DCs were inhibited by anti-IP-10 treatment.
2360 24385384 It was observed that PA-MSHA activated PMSM towards a classical activation phenotype via a toll-like receptor4/9-dependent mechanism, which increased interleukin-12 levels and promoted the expression of co-stimulatory and antigen-presenting molecules like CD80, CD86, and MHC-II (P < 0.05).
2361 24445619 There was significant upregulation of maturation markers (CD80, CD86, MHC-I, and MHC-II) in argon-helium freeze-thawed lysate-pulsed DCs.
2362 24445619 The concentration of interleukin-6 (IL-6), IL-1β, tumor necrosis factor-α, and IL-12 secreted by lysate-pulsed DCs was increased.
2363 24455776 We have found that LDN enhances maturation of BMDCs as evidenced by 1) up-regulating the expression of MHC II, CD40, CD83, CD80 and CD86 molecules on BMDCs; 2) down-regulating the rates of pinocytosis and phagocytosis accompanied by the results of decreased ACP, and FITC-dextran bio-assay; 3) mounting potential of BMDCs to drive T cell; and 4) inducing secretion of higher levels of IL-12 and TNF-α.
2364 24475315 Inclusion of CD80 in HSV targets the recombinant virus to PD-L1 on DCs and allows productive infection and robust immune responses.
2365 24475315 To investigate the effect of CD80 on HSV-1 infection, we constructed a recombinant HSV-1 virus that expresses two copies of the CD80 gene in place of the latency associated transcript (LAT).
2366 24475315 Additionally, the susceptibility of immature DCs to HSV-CD80 infection was mediated by CD80 binding to PD-L1 on DCs.
2367 24475315 Inclusion of CD80 in HSV targets the recombinant virus to PD-L1 on DCs and allows productive infection and robust immune responses.
2368 24475315 To investigate the effect of CD80 on HSV-1 infection, we constructed a recombinant HSV-1 virus that expresses two copies of the CD80 gene in place of the latency associated transcript (LAT).
2369 24475315 Additionally, the susceptibility of immature DCs to HSV-CD80 infection was mediated by CD80 binding to PD-L1 on DCs.
2370 24475315 Inclusion of CD80 in HSV targets the recombinant virus to PD-L1 on DCs and allows productive infection and robust immune responses.
2371 24475315 To investigate the effect of CD80 on HSV-1 infection, we constructed a recombinant HSV-1 virus that expresses two copies of the CD80 gene in place of the latency associated transcript (LAT).
2372 24475315 Additionally, the susceptibility of immature DCs to HSV-CD80 infection was mediated by CD80 binding to PD-L1 on DCs.
2373 24500854 PMP-entrapment also caused high expression of surface markers (CD80 and CD86) on antigen presenting cells, as well as effector T-cells surface markers (CD4(+) and CD8(+) ) as revealed by FACS.
2374 24502939 Immature myeloid (m)DCs circulating in the blood of cattle have been defined as lineage negative (Lin(-))MHCII(+)CD11c(+)CD205(+) cells.
2375 24502939 Lin(-)MHCII(+)CD11c(+)CD205(+) mDCs (0.2% blood mononuclear cells) isolated from bovine blood were heterogeneous in cell size and CD205 expression.
2376 24502939 Using highspeed cell sorting, Lin(-)MHCII(+)CD11c(+)CD205(+) DCs were sorted into CD205(Hi) and CD205(Lo) subpopulations which were phenotypically distinct and differed significantly (P<0.01) in TLR gene expression.
2377 24502939 T cell activation by CD205(Lo) mDCs was associated with differential up-regulation of CD40, CD80, CD86 and TGFβ1 gene expression when compared to CD205(Hi) mDCs.
2378 24502939 In conclusion, two phenotypically and functionally distinct CD11c(+)CD205(+) mDCs were isolated from blood that had an equal capacity to acquire antigen but markedly different capacities to activate T cells.
2379 24507356 The results showed that the treatment of macrophages with CS3 could not only increase the nitric oxide (NO) release and the cytokines TNF-α, IL-6 and IL-1β production significantly, but also enhance the inducible NOS (iNOS) expression, NF-κBp65 nuclear translocation, Erk1/2 and SAPK/JNK phosphorylation.
2380 24507356 The combination of CS3 with GM-CSF upregulated immature BMDCs to express major histocompatibility complex II (MHCII) and CD11c surface markers, CD40, CD80 and CD86 costimulatory molecules, as well as the cytokines of IL-12p70 and IL-6.
2381 24532579 In these studies, we demonstrate that W805EC NE adjuvant activates innate immunity, induces specific gene transcription, and modulates NF-κB activity via TLR2 and TLR4 by a mechanism that appears to be distinct from typical TLR agonists.
2382 24532579 Nasal immunization with NE-based vaccine showed that the TLR2, TLR4, and MyD88 pathways and IL-12 and IL-12Rβ1 expression are not required for an Ab response, but they are essential for the induction of balanced Th-1 polarization and Th-17 cellular immunity.
2383 24532579 NE adjuvant induces MHC class II, CD80, and CD86 costimulatory molecule expression and dendritic cell maturation.
2384 24532579 Further, upon immunization with NE, adjuvant mice deficient in the CD86 receptor had normal Ab responses but significantly reduced Th-1 cellular responses, whereas animals deficient in both CD80 and CD86 or lacking CD40 failed to produce either humoral or cellular immunity.
2385 24532579 Overall, our data show that intranasal administration of Ag with NE induces TLR2 and TLR4 activation along with a MyD88-independent Ab response and a MyD88-dependent Th-1 and Th-17 cell-mediated immune response.
2386 24532579 In these studies, we demonstrate that W805EC NE adjuvant activates innate immunity, induces specific gene transcription, and modulates NF-κB activity via TLR2 and TLR4 by a mechanism that appears to be distinct from typical TLR agonists.
2387 24532579 Nasal immunization with NE-based vaccine showed that the TLR2, TLR4, and MyD88 pathways and IL-12 and IL-12Rβ1 expression are not required for an Ab response, but they are essential for the induction of balanced Th-1 polarization and Th-17 cellular immunity.
2388 24532579 NE adjuvant induces MHC class II, CD80, and CD86 costimulatory molecule expression and dendritic cell maturation.
2389 24532579 Further, upon immunization with NE, adjuvant mice deficient in the CD86 receptor had normal Ab responses but significantly reduced Th-1 cellular responses, whereas animals deficient in both CD80 and CD86 or lacking CD40 failed to produce either humoral or cellular immunity.
2390 24532579 Overall, our data show that intranasal administration of Ag with NE induces TLR2 and TLR4 activation along with a MyD88-independent Ab response and a MyD88-dependent Th-1 and Th-17 cell-mediated immune response.
2391 24586641 Using a micropipet adhesion frequency assay, we show that TCR signaling enhances the direct binding between CD28 and its ligand, CD80.
2392 24596571 Pre-treating mice with an antibody against the IL-10 receptor prior to vaccination results in DC that up-regulate CD40, CD80, and CD86 and promote stronger IFNγ+ T cell responses.
2393 24600553 After subcutaneous injection of fluorescein 5-isothiocyanate (FITC)-labeled NPs or FITC-ovalbumin (OVA)-carrying NPs (FITC-OVA-NPs), DCs migrated from the skin to the LNs and maturated, resulting in the upregulation of the costimulatory molecules CD80 and CD86 and the chemokine receptor CCR7.
2394 24600553 FITC-OVA-NPs were found to be taken up by skin-derived CD103(+) DCs, and the processed antigen peptides were cross-presented by the major histocompatibility complex (MHC) class I molecule of DCs.
2395 24602605 Immunization of mice with encapsulated M278 elicited higher M278-specific T-cell cytokines [Th1 (IFN-γ, IL-2), Th17 (IL-17)] and antibodies [Th1 (IgG2a), Th2 (IgG1, IgG2b)] compared to bare M278.
2396 24602605 Encapsulated-M278 mouse serum inhibited Chlamydia infectivity of macrophages, with a concomitant transcriptional down-regulation of MOMP, its cognate TLR2 and CD80 co-stimulatory molecule.
2397 24713579 Artificial antigen-presenting cells expressing CD80, CD70, and 4-1BB ligand efficiently expand functional T cells specific to tumor-associated antigens.
2398 24713579 Here, in order to develop a novel aAPC system, we established K562 erythroleukemia cells expressing different combinations of co-stimulatory molecule ligands, CD80, CD70, and/or 4-1BB ligand (4-1BBL).
2399 24713579 When nucleofected with in vitro-generated mRNA encoding a tumor-associated antigen, MART-1, the K562 cells expressing all of CD80, CD70, and 4-1BBL were the most efficient for expansion of functional T cells specific to an HLA-A2-restricted immunodominant epitope, MART-126-35.
2400 24713579 In addition, only the K562 cells expressing all three of these co-stimulatory molecule ligands could clearly expand T cells specific to other less immunogenic antigen epitopes, gp100154-162 and Cyp1B1239-247, through transfection with in vitro generated gp100 and Cyp1B1 mRNA, respectively.
2401 24713579 These results indicated that non-redundant and synergistic effects of co-stimulation via CD28/CD80, CD27/CD70, and 4-1BB/4-1BBL might be critical for eliciting efficient expansion of T cells; co-stimulation via the 4-1BB/4-1BBL interaction might expand antigen-specific T cells by preventing apoptotic cell death triggered by specific antigens in the presence of the CD28/CD80 and CD27/CD70 signaling.
2402 24713579 Taken together, our findings suggested that this K562-based aAPC system expressing CD80, CD70, and 4-1BBL would be useful for efficiently stimulating functional antigen-specific T cells ex vivo, in particular when detailed information on the epitope specificities is unavailable.
2403 24713579 Artificial antigen-presenting cells expressing CD80, CD70, and 4-1BB ligand efficiently expand functional T cells specific to tumor-associated antigens.
2404 24713579 Here, in order to develop a novel aAPC system, we established K562 erythroleukemia cells expressing different combinations of co-stimulatory molecule ligands, CD80, CD70, and/or 4-1BB ligand (4-1BBL).
2405 24713579 When nucleofected with in vitro-generated mRNA encoding a tumor-associated antigen, MART-1, the K562 cells expressing all of CD80, CD70, and 4-1BBL were the most efficient for expansion of functional T cells specific to an HLA-A2-restricted immunodominant epitope, MART-126-35.
2406 24713579 In addition, only the K562 cells expressing all three of these co-stimulatory molecule ligands could clearly expand T cells specific to other less immunogenic antigen epitopes, gp100154-162 and Cyp1B1239-247, through transfection with in vitro generated gp100 and Cyp1B1 mRNA, respectively.
2407 24713579 These results indicated that non-redundant and synergistic effects of co-stimulation via CD28/CD80, CD27/CD70, and 4-1BB/4-1BBL might be critical for eliciting efficient expansion of T cells; co-stimulation via the 4-1BB/4-1BBL interaction might expand antigen-specific T cells by preventing apoptotic cell death triggered by specific antigens in the presence of the CD28/CD80 and CD27/CD70 signaling.
2408 24713579 Taken together, our findings suggested that this K562-based aAPC system expressing CD80, CD70, and 4-1BBL would be useful for efficiently stimulating functional antigen-specific T cells ex vivo, in particular when detailed information on the epitope specificities is unavailable.
2409 24713579 Artificial antigen-presenting cells expressing CD80, CD70, and 4-1BB ligand efficiently expand functional T cells specific to tumor-associated antigens.
2410 24713579 Here, in order to develop a novel aAPC system, we established K562 erythroleukemia cells expressing different combinations of co-stimulatory molecule ligands, CD80, CD70, and/or 4-1BB ligand (4-1BBL).
2411 24713579 When nucleofected with in vitro-generated mRNA encoding a tumor-associated antigen, MART-1, the K562 cells expressing all of CD80, CD70, and 4-1BBL were the most efficient for expansion of functional T cells specific to an HLA-A2-restricted immunodominant epitope, MART-126-35.
2412 24713579 In addition, only the K562 cells expressing all three of these co-stimulatory molecule ligands could clearly expand T cells specific to other less immunogenic antigen epitopes, gp100154-162 and Cyp1B1239-247, through transfection with in vitro generated gp100 and Cyp1B1 mRNA, respectively.
2413 24713579 These results indicated that non-redundant and synergistic effects of co-stimulation via CD28/CD80, CD27/CD70, and 4-1BB/4-1BBL might be critical for eliciting efficient expansion of T cells; co-stimulation via the 4-1BB/4-1BBL interaction might expand antigen-specific T cells by preventing apoptotic cell death triggered by specific antigens in the presence of the CD28/CD80 and CD27/CD70 signaling.
2414 24713579 Taken together, our findings suggested that this K562-based aAPC system expressing CD80, CD70, and 4-1BBL would be useful for efficiently stimulating functional antigen-specific T cells ex vivo, in particular when detailed information on the epitope specificities is unavailable.
2415 24713579 Artificial antigen-presenting cells expressing CD80, CD70, and 4-1BB ligand efficiently expand functional T cells specific to tumor-associated antigens.
2416 24713579 Here, in order to develop a novel aAPC system, we established K562 erythroleukemia cells expressing different combinations of co-stimulatory molecule ligands, CD80, CD70, and/or 4-1BB ligand (4-1BBL).
2417 24713579 When nucleofected with in vitro-generated mRNA encoding a tumor-associated antigen, MART-1, the K562 cells expressing all of CD80, CD70, and 4-1BBL were the most efficient for expansion of functional T cells specific to an HLA-A2-restricted immunodominant epitope, MART-126-35.
2418 24713579 In addition, only the K562 cells expressing all three of these co-stimulatory molecule ligands could clearly expand T cells specific to other less immunogenic antigen epitopes, gp100154-162 and Cyp1B1239-247, through transfection with in vitro generated gp100 and Cyp1B1 mRNA, respectively.
2419 24713579 These results indicated that non-redundant and synergistic effects of co-stimulation via CD28/CD80, CD27/CD70, and 4-1BB/4-1BBL might be critical for eliciting efficient expansion of T cells; co-stimulation via the 4-1BB/4-1BBL interaction might expand antigen-specific T cells by preventing apoptotic cell death triggered by specific antigens in the presence of the CD28/CD80 and CD27/CD70 signaling.
2420 24713579 Taken together, our findings suggested that this K562-based aAPC system expressing CD80, CD70, and 4-1BBL would be useful for efficiently stimulating functional antigen-specific T cells ex vivo, in particular when detailed information on the epitope specificities is unavailable.
2421 24713579 Artificial antigen-presenting cells expressing CD80, CD70, and 4-1BB ligand efficiently expand functional T cells specific to tumor-associated antigens.
2422 24713579 Here, in order to develop a novel aAPC system, we established K562 erythroleukemia cells expressing different combinations of co-stimulatory molecule ligands, CD80, CD70, and/or 4-1BB ligand (4-1BBL).
2423 24713579 When nucleofected with in vitro-generated mRNA encoding a tumor-associated antigen, MART-1, the K562 cells expressing all of CD80, CD70, and 4-1BBL were the most efficient for expansion of functional T cells specific to an HLA-A2-restricted immunodominant epitope, MART-126-35.
2424 24713579 In addition, only the K562 cells expressing all three of these co-stimulatory molecule ligands could clearly expand T cells specific to other less immunogenic antigen epitopes, gp100154-162 and Cyp1B1239-247, through transfection with in vitro generated gp100 and Cyp1B1 mRNA, respectively.
2425 24713579 These results indicated that non-redundant and synergistic effects of co-stimulation via CD28/CD80, CD27/CD70, and 4-1BB/4-1BBL might be critical for eliciting efficient expansion of T cells; co-stimulation via the 4-1BB/4-1BBL interaction might expand antigen-specific T cells by preventing apoptotic cell death triggered by specific antigens in the presence of the CD28/CD80 and CD27/CD70 signaling.
2426 24713579 Taken together, our findings suggested that this K562-based aAPC system expressing CD80, CD70, and 4-1BBL would be useful for efficiently stimulating functional antigen-specific T cells ex vivo, in particular when detailed information on the epitope specificities is unavailable.
2427 24727060 It is thought that c-di-GMP is recognized by ATP dependent RNA helicase (DDX41) in the cytosol, forms a complex with the Stimulator of interferon genes protein (STING), triggers a signal via the tank binding kinase 1-interferon regulatory factor 3 (TBK1-IRF3) pathway and induces the production of type I interferons.
2428 24727060 C-di-GMP liposomes also showed significantly higher levels of expression of CD80, CD86 and MHC class I.
2429 24766519 Prominent up-regulation of co-stimulatory molecules CD40, CD80 and CD86 was also observed in response to MIP.
2430 24766519 With the help of pharmacological inhibitors and Toll-like receptor (TLR) -deficient macrophages, we observed the role of TLR2, TLR4 and intracellular TLRs in MIP-mediated macrophage activation.
2431 24845157 CD80 and CD86 IgC domains are important for quaternary structure, receptor binding and co-signaling function.
2432 24845157 CD86 and CD80, the ligands for the co-stimulatory molecules CD28 and CTLA-4, are members of the Ig superfamily.
2433 24845157 Herein, we have used deletion and chimeric human CD80 and CD86 molecules in co-stimulation assays to study the impact of the multimeric state of IgV and IgC domains on receptor binding properties and on co-stimulatory function in a peptide-specific T cell activation model.
2434 24845157 We report for the first time the presence of CD80 dimers and CD86 monomers in living cells.
2435 24845157 Moreover, we show that the IgC domain of both molecules inhibits multimer formation and greatly affects binding to the co-receptors CD28 and CTLA-4.
2436 24845157 These findings reveal the distinct but complementary roles of CD80 and CD86 IgV and IgC domains in T cell activation.
2437 24845157 CD80 and CD86 IgC domains are important for quaternary structure, receptor binding and co-signaling function.
2438 24845157 CD86 and CD80, the ligands for the co-stimulatory molecules CD28 and CTLA-4, are members of the Ig superfamily.
2439 24845157 Herein, we have used deletion and chimeric human CD80 and CD86 molecules in co-stimulation assays to study the impact of the multimeric state of IgV and IgC domains on receptor binding properties and on co-stimulatory function in a peptide-specific T cell activation model.
2440 24845157 We report for the first time the presence of CD80 dimers and CD86 monomers in living cells.
2441 24845157 Moreover, we show that the IgC domain of both molecules inhibits multimer formation and greatly affects binding to the co-receptors CD28 and CTLA-4.
2442 24845157 These findings reveal the distinct but complementary roles of CD80 and CD86 IgV and IgC domains in T cell activation.
2443 24845157 CD80 and CD86 IgC domains are important for quaternary structure, receptor binding and co-signaling function.
2444 24845157 CD86 and CD80, the ligands for the co-stimulatory molecules CD28 and CTLA-4, are members of the Ig superfamily.
2445 24845157 Herein, we have used deletion and chimeric human CD80 and CD86 molecules in co-stimulation assays to study the impact of the multimeric state of IgV and IgC domains on receptor binding properties and on co-stimulatory function in a peptide-specific T cell activation model.
2446 24845157 We report for the first time the presence of CD80 dimers and CD86 monomers in living cells.
2447 24845157 Moreover, we show that the IgC domain of both molecules inhibits multimer formation and greatly affects binding to the co-receptors CD28 and CTLA-4.
2448 24845157 These findings reveal the distinct but complementary roles of CD80 and CD86 IgV and IgC domains in T cell activation.
2449 24845157 CD80 and CD86 IgC domains are important for quaternary structure, receptor binding and co-signaling function.
2450 24845157 CD86 and CD80, the ligands for the co-stimulatory molecules CD28 and CTLA-4, are members of the Ig superfamily.
2451 24845157 Herein, we have used deletion and chimeric human CD80 and CD86 molecules in co-stimulation assays to study the impact of the multimeric state of IgV and IgC domains on receptor binding properties and on co-stimulatory function in a peptide-specific T cell activation model.
2452 24845157 We report for the first time the presence of CD80 dimers and CD86 monomers in living cells.
2453 24845157 Moreover, we show that the IgC domain of both molecules inhibits multimer formation and greatly affects binding to the co-receptors CD28 and CTLA-4.
2454 24845157 These findings reveal the distinct but complementary roles of CD80 and CD86 IgV and IgC domains in T cell activation.
2455 24845157 CD80 and CD86 IgC domains are important for quaternary structure, receptor binding and co-signaling function.
2456 24845157 CD86 and CD80, the ligands for the co-stimulatory molecules CD28 and CTLA-4, are members of the Ig superfamily.
2457 24845157 Herein, we have used deletion and chimeric human CD80 and CD86 molecules in co-stimulation assays to study the impact of the multimeric state of IgV and IgC domains on receptor binding properties and on co-stimulatory function in a peptide-specific T cell activation model.
2458 24845157 We report for the first time the presence of CD80 dimers and CD86 monomers in living cells.
2459 24845157 Moreover, we show that the IgC domain of both molecules inhibits multimer formation and greatly affects binding to the co-receptors CD28 and CTLA-4.
2460 24845157 These findings reveal the distinct but complementary roles of CD80 and CD86 IgV and IgC domains in T cell activation.
2461 24846569 Pretreatment with WapA-GST also increased LPS-induced proinflammatory cytokine production by DCs, including IL-12, IL-6 and TNF-α.
2462 24846569 Furthermore, expression of the DC maturation markers CD80/86, CD40 and MHC II was also increased by WapA pretreatment.
2463 24861251 The functional maturation was confirmed by an acid phosphatase (ACP) activity test, FITC-dextran bio-assay, test of 5,6-carboxyfluorescein diacetate succinimidyl ester (CFSE), labeled CD4(+)T cell proliferation and enzyme-linked immunosorbent assay (ELISA).
2464 24861251 We determined that thymopentin up-regulated the expression of CD40, CD80, CD86, CD83, and MHC II molecules on BMDCs, down-regulated phagocytosis of BMDCs, increased BMDCs driven CD4(+)T cell proliferation, and enhanced BMDC production of IL-12 and TNF-α.
2465 24863229 Second, the exposure of nano-TiO2 and Fe(3)O(4)@TiO(2)caused an increased expression of TNF-α, CD86 and CD80, and besides, Fe(3)O(4)@TiO(2)showed a certain up-regulation on MHC-II.
2466 24911024 Systemic administration of fucoidan induced up-regulation of CD40, CD80 and CD86 expression and production of IL-6, IL-12 and TNF-α in spleen cDCs.
2467 24911024 Fucoidan also promoted the generation of IFN-γ-producing Th1 and Tc1 cells in an IL-12-dependent manner.
2468 24911024 Moreover, fucoidan enhanced OVA-induced up-regulation of MHC class I and II on spleen cDCs and strongly prompted the proliferation of OVA-specific CD4 and CD8 T cells.
2469 24934453 Supernatants from these cells also increased macrophage production of IL-6 and prostaglandin E2, and increased their phagocytic activity and CD80 expression.
2470 24942994 We hereby proved that LJP markedly induced maturation of BMDCs with the data of decreased the number of lysosomes, upregulated expression of CD80, CD83, CD86, CD40 and MHC II key membrane molecules on BMDCs, downregulated phagocytosis, enriched production of IL-12 and TNF-α secreted by BMDCs.
2471 24945624 Relative to BCG-GFP, BCG-TB1860 effected a significant near total reduction both in secretion of cytokines IL-2, IL-12p40, IL-12p70, TNF-α, IL-6 and IL-10, and up regulation of co-stimulatory molecules MHC-II, CD40, CD54, CD80 and CD86 by infected bone marrow derived dendritic cells (BMDC), while leaving secreted levels of TGF-β unchanged.
2472 24945624 Splenocytes from mice infected with BCG-SSI showed significantly less proliferation and secretion of IL-2, IFN-γ and IL-17, but secreted higher levels of IL-10 in response to in vitro restimulation with BCG-TB1860 compared to BCG-GFP.
2473 24945624 Spleens from mice infected with BCG-TB1860 also harboured significantly fewer DC expressing MHC-II, IL-12, IL-2 and TNF-α compared to mice infected with BCG-GFP.
2474 24951814 Priming of CD8 T cells by adenoviral vectors is critically dependent on B7 and dendritic cells but only partially dependent on CD28 ligation on CD8 T cells.
2475 24951814 Moreover, we found that CD80/86, but not CD28, was essential for efficient generation of both primary effectors and memory CD8 T cells.
2476 24951814 Interestingly, the lack of CD28 expression resulted in a delayed primary response, whereas memory CD8 T cells generated in CD28-deficient mice appeared almost normal in terms of both phenotype and effector cytokine profile, but they exhibited a significantly reduced proliferative capacity upon secondary challenge while retaining immediate in vivo effector capabilities: in vivo cytotoxicity and short-term in vivo protective capacity.
2477 24951814 Overall, our data point to an absolute requirement for professional APCs and the expression of the costimulatory molecules CD80/86 for efficient CD8 T cell priming by adenoviral vectors.
2478 24951814 Additionally, our results suggest the existence of an alternative receptor for CD80/86, which may substitute, in part, for CD28.
2479 24951814 Priming of CD8 T cells by adenoviral vectors is critically dependent on B7 and dendritic cells but only partially dependent on CD28 ligation on CD8 T cells.
2480 24951814 Moreover, we found that CD80/86, but not CD28, was essential for efficient generation of both primary effectors and memory CD8 T cells.
2481 24951814 Interestingly, the lack of CD28 expression resulted in a delayed primary response, whereas memory CD8 T cells generated in CD28-deficient mice appeared almost normal in terms of both phenotype and effector cytokine profile, but they exhibited a significantly reduced proliferative capacity upon secondary challenge while retaining immediate in vivo effector capabilities: in vivo cytotoxicity and short-term in vivo protective capacity.
2482 24951814 Overall, our data point to an absolute requirement for professional APCs and the expression of the costimulatory molecules CD80/86 for efficient CD8 T cell priming by adenoviral vectors.
2483 24951814 Additionally, our results suggest the existence of an alternative receptor for CD80/86, which may substitute, in part, for CD28.
2484 24951814 Priming of CD8 T cells by adenoviral vectors is critically dependent on B7 and dendritic cells but only partially dependent on CD28 ligation on CD8 T cells.
2485 24951814 Moreover, we found that CD80/86, but not CD28, was essential for efficient generation of both primary effectors and memory CD8 T cells.
2486 24951814 Interestingly, the lack of CD28 expression resulted in a delayed primary response, whereas memory CD8 T cells generated in CD28-deficient mice appeared almost normal in terms of both phenotype and effector cytokine profile, but they exhibited a significantly reduced proliferative capacity upon secondary challenge while retaining immediate in vivo effector capabilities: in vivo cytotoxicity and short-term in vivo protective capacity.
2487 24951814 Overall, our data point to an absolute requirement for professional APCs and the expression of the costimulatory molecules CD80/86 for efficient CD8 T cell priming by adenoviral vectors.
2488 24951814 Additionally, our results suggest the existence of an alternative receptor for CD80/86, which may substitute, in part, for CD28.
2489 24962751 The results demonstrated that rTs-Hsp70 activated DC maturation that was characterized by the secretion of IL-1β, IL-12p70, TNF-α, and IL-6 and the increased surface expression of CD11c, MHC II, CD40, CD80, and CD86.
2490 24962751 The rTs-Hsp70-activated DCs enabled the stimulation, proliferation and secretion of Th1/2 cytokines (i.e., INF-γ, IL-2, IL-4 and IL-6) in CD4(+) T cells from T. spiralis-infected mice.
2491 24962751 This partial protection was correlated with Th1 and Th2 mixed anti-Ts-Hsp70-specific immune responses that included high titers of total IgG, IgG1 and IgG2a and increased levels of Th1/2 cytokines (i.e., IFN-γ, IL-2, IL-4, IL-6).
2492 24981893 Induction of death receptor CD95 and co-stimulatory molecules CD80 and CD86 by meningococcal capsular polysaccharide-loaded vaccine nanoparticles.
2493 24981893 In this study, we determined the ability of CPS-loaded vaccine nanoparticles to induce co-stimulatory molecules, namely CD80, CD86, and CD95 that impact effective antigen presentation.
2494 24981893 Meningococcal CPS-loaded NP significantly induced the surface protein expression of CD80 and CD86, markers of dendritic cell maturation, in human THP-1 macrophages and in murine dendritic cells DC2.4 in a dose-dependent manner.
2495 24981893 Induction of death receptor CD95 and co-stimulatory molecules CD80 and CD86 by meningococcal capsular polysaccharide-loaded vaccine nanoparticles.
2496 24981893 In this study, we determined the ability of CPS-loaded vaccine nanoparticles to induce co-stimulatory molecules, namely CD80, CD86, and CD95 that impact effective antigen presentation.
2497 24981893 Meningococcal CPS-loaded NP significantly induced the surface protein expression of CD80 and CD86, markers of dendritic cell maturation, in human THP-1 macrophages and in murine dendritic cells DC2.4 in a dose-dependent manner.
2498 24981893 Induction of death receptor CD95 and co-stimulatory molecules CD80 and CD86 by meningococcal capsular polysaccharide-loaded vaccine nanoparticles.
2499 24981893 In this study, we determined the ability of CPS-loaded vaccine nanoparticles to induce co-stimulatory molecules, namely CD80, CD86, and CD95 that impact effective antigen presentation.
2500 24981893 Meningococcal CPS-loaded NP significantly induced the surface protein expression of CD80 and CD86, markers of dendritic cell maturation, in human THP-1 macrophages and in murine dendritic cells DC2.4 in a dose-dependent manner.
2501 25200734 The peritoneal and consequently spleen CD19(+) cells are activated by the F. tularensis LVS infection to express the activation markers from MHC class II, CD25, CD54, CD69, and the co-stimulatory molecules CD80 and CD86.
2502 25200734 As early as 12 h post-infection, the peritoneal CD19(+) cells produce IFN-γ, IL-1β, IL-4, IL-6, IL-12, IL-17, IL-23, and TNF-α.
2503 25225119 We found that CTS downregulated the numbers of phagosomes inside the BMDCs, up-regulated the expression of MHC II, CD40, CD83, CD80 and CD86 molecules on BMDCs, decreased activity of ACP and phagocytosis by BMDCs, and induced production of higher levels of IL-12 and TNF-α.
2504 25242680 To further elucidate why an allogeneic gene-modified [interleukin-7 (IL-7)/CD80-cotransfected] renal cell cancer (RCC) vaccine failed to induce clinically relevant TH-1-polarized immune responses, peripheral blood mononuclear cells from enrolled study patients were analyzed by gene expression profiling (GEP) both prior and after vaccination.
2505 25280435 Interestingly, antigen positive migratory DCs undergo discordant maturation, with peak expression of CD86 at 4 h and CD80 at 48-72 h post vaccination.
2506 25360749 DC treatment with EV71 VLPs enhanced the expression of CD80, CD86, CD83, CD40, CD54, and HLA-DR on the cell surface; increased the production of interleukin (IL)-12 p40, IL-12 p70, and IL-10 by DCs; and suppressed the capacity of DCs for endocytosis.
2507 25360749 Neutralization with antibodies against Toll-like receptor (TLR) 4 suppressed the capacity of EV71 VLPs to induce the production of IL-12 p40, IL-12 p70, and IL-10 by DCs and inhibited EV71 VLPs binding to DCs.
2508 25444817 CD4 T-cells transduced with CD80 and 4-1BBL mRNA induce long-term CD8 T-cell responses resulting in potent antitumor effects.
2509 25444817 To enhance their potency as a therapeutic vaccine, in vitro expanded CD4 T-cells were transfected with RNAs encoding the costimulatory ligands CD80, 4-1BBL, or both (CD80-T, 4-1BBL-T, and CD80/4-1BBL-T-cells, respectively).
2510 25444817 Significant CD8 T-cell responses eliciting in vivo proliferation and cytotoxicity were obtained with CD80/4-1BBL-T-cell vaccination compared to CD80-T and 4-1BBL-T-cell vaccinations.
2511 25444817 In contrast, β2m-deficient CD80/4-1BBL-T-cells were not as effective as wile-type CD80/4-1BBL-T-cells in priming CD8 T-cells.
2512 25444817 Furthermore, CD80/4-1BBL-T-cell immunization resulted in curing established EG7 tumors, resulting in the generation of memory CD8 T-cell responses, and elicited therapeutic antitumor responses against B16 melanoma.
2513 25444817 CD4 T-cells transduced with CD80 and 4-1BBL mRNA induce long-term CD8 T-cell responses resulting in potent antitumor effects.
2514 25444817 To enhance their potency as a therapeutic vaccine, in vitro expanded CD4 T-cells were transfected with RNAs encoding the costimulatory ligands CD80, 4-1BBL, or both (CD80-T, 4-1BBL-T, and CD80/4-1BBL-T-cells, respectively).
2515 25444817 Significant CD8 T-cell responses eliciting in vivo proliferation and cytotoxicity were obtained with CD80/4-1BBL-T-cell vaccination compared to CD80-T and 4-1BBL-T-cell vaccinations.
2516 25444817 In contrast, β2m-deficient CD80/4-1BBL-T-cells were not as effective as wile-type CD80/4-1BBL-T-cells in priming CD8 T-cells.
2517 25444817 Furthermore, CD80/4-1BBL-T-cell immunization resulted in curing established EG7 tumors, resulting in the generation of memory CD8 T-cell responses, and elicited therapeutic antitumor responses against B16 melanoma.
2518 25444817 CD4 T-cells transduced with CD80 and 4-1BBL mRNA induce long-term CD8 T-cell responses resulting in potent antitumor effects.
2519 25444817 To enhance their potency as a therapeutic vaccine, in vitro expanded CD4 T-cells were transfected with RNAs encoding the costimulatory ligands CD80, 4-1BBL, or both (CD80-T, 4-1BBL-T, and CD80/4-1BBL-T-cells, respectively).
2520 25444817 Significant CD8 T-cell responses eliciting in vivo proliferation and cytotoxicity were obtained with CD80/4-1BBL-T-cell vaccination compared to CD80-T and 4-1BBL-T-cell vaccinations.
2521 25444817 In contrast, β2m-deficient CD80/4-1BBL-T-cells were not as effective as wile-type CD80/4-1BBL-T-cells in priming CD8 T-cells.
2522 25444817 Furthermore, CD80/4-1BBL-T-cell immunization resulted in curing established EG7 tumors, resulting in the generation of memory CD8 T-cell responses, and elicited therapeutic antitumor responses against B16 melanoma.
2523 25444817 CD4 T-cells transduced with CD80 and 4-1BBL mRNA induce long-term CD8 T-cell responses resulting in potent antitumor effects.
2524 25444817 To enhance their potency as a therapeutic vaccine, in vitro expanded CD4 T-cells were transfected with RNAs encoding the costimulatory ligands CD80, 4-1BBL, or both (CD80-T, 4-1BBL-T, and CD80/4-1BBL-T-cells, respectively).
2525 25444817 Significant CD8 T-cell responses eliciting in vivo proliferation and cytotoxicity were obtained with CD80/4-1BBL-T-cell vaccination compared to CD80-T and 4-1BBL-T-cell vaccinations.
2526 25444817 In contrast, β2m-deficient CD80/4-1BBL-T-cells were not as effective as wile-type CD80/4-1BBL-T-cells in priming CD8 T-cells.
2527 25444817 Furthermore, CD80/4-1BBL-T-cell immunization resulted in curing established EG7 tumors, resulting in the generation of memory CD8 T-cell responses, and elicited therapeutic antitumor responses against B16 melanoma.
2528 25444817 CD4 T-cells transduced with CD80 and 4-1BBL mRNA induce long-term CD8 T-cell responses resulting in potent antitumor effects.
2529 25444817 To enhance their potency as a therapeutic vaccine, in vitro expanded CD4 T-cells were transfected with RNAs encoding the costimulatory ligands CD80, 4-1BBL, or both (CD80-T, 4-1BBL-T, and CD80/4-1BBL-T-cells, respectively).
2530 25444817 Significant CD8 T-cell responses eliciting in vivo proliferation and cytotoxicity were obtained with CD80/4-1BBL-T-cell vaccination compared to CD80-T and 4-1BBL-T-cell vaccinations.
2531 25444817 In contrast, β2m-deficient CD80/4-1BBL-T-cells were not as effective as wile-type CD80/4-1BBL-T-cells in priming CD8 T-cells.
2532 25444817 Furthermore, CD80/4-1BBL-T-cell immunization resulted in curing established EG7 tumors, resulting in the generation of memory CD8 T-cell responses, and elicited therapeutic antitumor responses against B16 melanoma.
2533 25454862 Further analysis proved that co-stimulatory molecules (CD40, CD80, CD86 and MHC-II), regulatory protein (IRF-7 and TRAF-6) and pro-inflammatory cytokines (IL-1, IL-6 and IL-12) were all changed and involved in DCs maturation.
2534 25466267 In vitro, the MP-based vaccine significantly increased dendritic cell (DC) activation with up-regulated CD40 and CD80 expression and IL-12 production compared to alum-based vaccine.
2535 25466267 Moreover, subcutaneous and intramuscular immunizations with MP-based vaccine augmented Granzyme B, Th1-type cytokines (IL-2, IL-12, and IFN-γ), and Th2 cytokine IL-4 secretions.
2536 25479725 In the presence of 17β-estradiol, DCs from aged rats exhibited an impaired ability to mature upon stimulation with LPS, as shown by the lower surface density of MHC II and costimulatory CD80 and CD86 molecules. 17β-Estradiol alone enhanced CD40 expression in OX62+ DCs without affecting the expression of other costimulatory molecules, thereby confirming that the expression of this molecule is regulated independently from the regulation of other costimulatory molecules.
2537 25479725 However, although R848 upregulated the expression of MHC II and CD80 and CD40 costimulatory molecules on DCs, 17β-estradiol diminished the effect of this TLR agonist only on MHC II expression.
2538 25479725 In the presence of 17β-estradiol, DCs from aged rats exhibited an impaired ability to mature upon stimulation with LPS, as shown by the lower surface density of MHC II and costimulatory CD80 and CD86 molecules. 17β-Estradiol alone enhanced CD40 expression in OX62+ DCs without affecting the expression of other costimulatory molecules, thereby confirming that the expression of this molecule is regulated independently from the regulation of other costimulatory molecules.
2539 25479725 However, although R848 upregulated the expression of MHC II and CD80 and CD40 costimulatory molecules on DCs, 17β-estradiol diminished the effect of this TLR agonist only on MHC II expression.
2540 25536061 Furthermore, LT-IIb and LT-IIc enhanced the total number of dendritic cells (DC) in the draining lymph node (DLN) and expression of costimulatory molecules CD80, CD86, and CD40 on DCs.
2541 25573037 With respect to the cytokine profile and the maturation status, coating with MPLA evoked a strong Th1-type cytokine response and significantly increased CD80 and CD83 expression on DCs, contrasting the moderate effects of MPLA in solution.
2542 25622186 The functional maturation of BMDCs was confirmed by cytochemistry assay, FITC-dextran, acid phosphatase (ACP) activity, bio-assay and enzyme linked immunosorbent assay (ELISA).We elucidated that IL-2 up-regulated the expression of key surface markers such as: CD80, CD83, CD86, CD40 and MHC II molecules on BMDCs, down-regulated phagocytosis activity, induced more production of IL-12 and TNF-α secreted by BMDCs.
2543 25668674 Through intersection analysis of the microarray results, we found that the Toll-like receptor signaling pathway was significantly activated, and NF-kB, TRAF3 and IRF7 were activated as early as 12 h, and MyD88 was activated at 48 h post-stimulation.
2544 25668674 Furthermore, the expression of the surface marker CD83 and the co-stimulatory molecules CD80 and CD86 was up-regulated as early as 24 h.
2545 25698486 We found that delivery of rPmp18D with VCG was more effective than with CpG+FL in up-regulating the expression of molecules critically involved in T cell activation and differentiation, including MHC II, CD40, CD80, and CD86, activation of TLRs and NLRP3 inflammasome engagement, and secretion of IL-1β and TNF-α but not IL-10 and IL-4. rVCG-Pmp18D-immunized mice elicited more robust antigen-specific IFN-γ, IgA and IgG2c antibody responses compared to CpG+FL-delivered rPmp18D.
2546 25748337 Upon PFWE treatment, BM-DCs dose-dependently upregulated the expression of CD40, CD80, CD86 and MHC II and increased the production of IL-12, IL-6 and tumor necrosis factor (TNF)-α but not for IL-10, which is mediated by TLR4 signaling pathway, at least partially.
2547 25775390 Furthermore, sRCPS increased the levels of IL-4, IL-2, and IFN-γ in CD4(+)T cells and the level of IFN-γ in CD8(+)T cells.
2548 25775390 In addition, sRCPS enhanced the expression of CD40(+), CD80(+), CD86(+), MHC I and MHC II in dendritic cells (DCs) and upregulated the mRNA levels of MHC I, MHC II. sRCPS downregulated the frequency of CD4(+)CD25(+)Foxp3(+) Treg cells. sRCPS increased both cellular and humoral immune responses by upregulating DC maturation, and suppressing the frequency of Treg cells.
2549 25792524 The vaccines were aimed at activating type I CD4(+)T cells and consisted of tumor cells transfected with genes encoding syngeneic MHC class II and CD80 costimulatory molecules, and lacking the MHC II-associated invariant chain.
2550 25792524 During the course of the vaccine studies, we observed that CD80 not only costimulated naïve T cells, but also bound to PD-L1 and prevented tumor cell-expressed PD-L1 from binding to its receptor PD-1 on activated T cells.
2551 25792524 A soluble form of CD80 (CD80-Fc) had the same effect and sustained IFNγ production by both human and murine PD-1(+) activated T cells in the presence of PD-L1(+) human or mouse tumor cells, respectively.
2552 25792524 In vitro studies with human tumor cells indicated that CD80-Fc was more effective than antibodies to either PD-1 or PD-L1 in sustaining T cell production of IFNγ.
2553 25792524 Studies with human T cells blocked for CD28 and with T cells from CD28 knockout mice demonstrated that CD80-Fc simultaneously inhibited PD-L1/PD-1-mediated immune suppression and delivered costimulatory signals to activated T cells, thereby amplifying T cell activation.
2554 25792524 The vaccines were aimed at activating type I CD4(+)T cells and consisted of tumor cells transfected with genes encoding syngeneic MHC class II and CD80 costimulatory molecules, and lacking the MHC II-associated invariant chain.
2555 25792524 During the course of the vaccine studies, we observed that CD80 not only costimulated naïve T cells, but also bound to PD-L1 and prevented tumor cell-expressed PD-L1 from binding to its receptor PD-1 on activated T cells.
2556 25792524 A soluble form of CD80 (CD80-Fc) had the same effect and sustained IFNγ production by both human and murine PD-1(+) activated T cells in the presence of PD-L1(+) human or mouse tumor cells, respectively.
2557 25792524 In vitro studies with human tumor cells indicated that CD80-Fc was more effective than antibodies to either PD-1 or PD-L1 in sustaining T cell production of IFNγ.
2558 25792524 Studies with human T cells blocked for CD28 and with T cells from CD28 knockout mice demonstrated that CD80-Fc simultaneously inhibited PD-L1/PD-1-mediated immune suppression and delivered costimulatory signals to activated T cells, thereby amplifying T cell activation.
2559 25792524 The vaccines were aimed at activating type I CD4(+)T cells and consisted of tumor cells transfected with genes encoding syngeneic MHC class II and CD80 costimulatory molecules, and lacking the MHC II-associated invariant chain.
2560 25792524 During the course of the vaccine studies, we observed that CD80 not only costimulated naïve T cells, but also bound to PD-L1 and prevented tumor cell-expressed PD-L1 from binding to its receptor PD-1 on activated T cells.
2561 25792524 A soluble form of CD80 (CD80-Fc) had the same effect and sustained IFNγ production by both human and murine PD-1(+) activated T cells in the presence of PD-L1(+) human or mouse tumor cells, respectively.
2562 25792524 In vitro studies with human tumor cells indicated that CD80-Fc was more effective than antibodies to either PD-1 or PD-L1 in sustaining T cell production of IFNγ.
2563 25792524 Studies with human T cells blocked for CD28 and with T cells from CD28 knockout mice demonstrated that CD80-Fc simultaneously inhibited PD-L1/PD-1-mediated immune suppression and delivered costimulatory signals to activated T cells, thereby amplifying T cell activation.
2564 25804437 Tumor-resident macrophages and dendritic cells, particularly cells actively invaded by CPS, increased expression of costimulatory molecules CD80 and CD86 and concomitantly boosted their production of IL12.
2565 25804437 CPS treatment increased CD4(+) and CD8(+) T-cell infiltration into the tumor microenvironment, activated tumor-resident T cells, and increased IFNγ production by T-cell populations.
2566 25804437 This therapeutic benefit depended on IL12 and IFNγ production, MyD88 signaling, and CD8(+) T-cell populations.
2567 25825910 Mixed lymphocyte reaction showed all Am-, Cp- and [Am+Cp]-treated DCs enhanced mouse CD4+ and CD8+ T-cell proliferation.
2568 25825910 Treatments with Am, Cp and [Am+Cp] also resulted in augmented expression of CD40, CD80 and CD86 markers in test DCs.
2569 25863743 Efficient induction of anti-tumor immune response in esophageal squamous cell carcinoma via dendritic cells expressing MAGE-A3 and CALR antigens.
2570 25863743 Recent studies have suggested that melanoma-associated antigen 3 (MAGE-A3) is a potential immunotherapeutic target and also a candidate for the development of an anti-tumor vaccine.
2571 25863743 Therefore, in this study, we overexpressed MAGE-A3 and CALR on DCs and studied their potential to generate anti-tumor immune responses.
2572 25863743 We observed that adenovirus (Ad)-infected DCs overexpressing CALR and MAGE-A3 showed enhanced expression of CD80, CD83, CD86, and HLA-DR markers.
2573 25863743 Furthermore, CALR/MAGE-A3-infected DCs stimulated CD8(+) cytotoxic T lymphocytes, which in turn secreted higher levels of interferon-γ, which induced cytotoxic effects on ESCC cells expressing MAGE-A3.
2574 25888644 Flow cytometric analysis of tetramer-reactive B cell subsets revealed a significantly higher frequency and greater numbers of RBP-reactive marginal zone precursor, transitional T3, and PDL-2(+)CD80(+) memory B cells, with significantly elevated CD69 and CD86 observed in RBP(+) marginal zone precursor B cells in the spleens of BXD2 mice compared with C57BL/6 mice, suggesting a regulatory defect.
2575 25934108 Moreover, CVPS increased the expression of IL-2, IFN-γ, and IL-4 in CD4(+) T cells and IFN-γ expression in CD8(+) T cells.
2576 25934108 Additionally, CVPS enhanced CD40(+), CD80(+), and CD86(+) expression on DCs.
2577 25934108 In contrast, CVPS downregulated TGF-β mRNA expression and the frequency of CD4(+)CD25(+)Foxp3(+) Treg cells.
2578 25934108 Taken together, these results indicate that administering CVPS as an adjuvant enhances both cellular and humoral immune responses via the TLR-2 and TLR-4 signalling pathways, thereby promoting DC maturation and suppressing TGF-β expression and Treg frequency.
2579 25993535 The expression of co-stimulatory molecules (CD40, CD80 and CD86) in FTH-DCs was similar to that of DCs.
2580 26039883 The 'improved' maturation cytokine cocktail DCs showed a higher levels surface markers expression (CD80, CD83, CD86 and HLA-DR), the chemokine receptors CXCR4 and CCR7 and chemokine CCL19, CCL21 and CXCL21, whereas CCR5 expression was reduced.
2581 26065617 Our results show that the expression of Mo-DC surface markers such as SWC3a(+)CD1a(+), SWC3a(+)CD80/86(+) and SWC3a(+)SLA-II-DR(+) is increased after infection with CV777 for 24 h.
2582 26072400 Here, we describe the generation of a cell-based tumor vaccine via fourfold transient gene modification of a human renal cell carcinoma (RCC) cell line for high expression of CD80, CD154, GM-CSF, and IL-7 by use of MIDGE(®) vectors.
2583 26072400 The two co-stimulatory molecules CD80 and CD154 are expressed at the cell surface, whereas the two cytokines GM-CSF and IL-7 are secreted yielding cells with enhanced immunological properties.
2584 26072400 Here, we describe the generation of a cell-based tumor vaccine via fourfold transient gene modification of a human renal cell carcinoma (RCC) cell line for high expression of CD80, CD154, GM-CSF, and IL-7 by use of MIDGE(®) vectors.
2585 26072400 The two co-stimulatory molecules CD80 and CD154 are expressed at the cell surface, whereas the two cytokines GM-CSF and IL-7 are secreted yielding cells with enhanced immunological properties.
2586 26144666 Moreover, the adjuvanticity of the liposomes was assessed in an in vitro dendritic cell (DC) model, by quantifying the expression of DC maturation markers CD40, CD80, CD83 and CD86.
2587 26170383 Taking advantage of single-cell flow cytometry analyses, HlaH35L-specific B cells were characterized for the expression of CD38 and GL-7, markers of memory and GC, respectively, and for CD80 and CD73 activation markers.
2588 26170383 We demonstrated that immunization with MF59-, but not aluminum salt-adjuvanted HlaH35L, induced expanded Ag-specific CD73(+)CD80(-) GC B cells in proximal- and distal-draining lymph nodes, and promoted the persistence of GC B cells, detected up to 4 mo after immunization.
2589 26170383 Taking advantage of single-cell flow cytometry analyses, HlaH35L-specific B cells were characterized for the expression of CD38 and GL-7, markers of memory and GC, respectively, and for CD80 and CD73 activation markers.
2590 26170383 We demonstrated that immunization with MF59-, but not aluminum salt-adjuvanted HlaH35L, induced expanded Ag-specific CD73(+)CD80(-) GC B cells in proximal- and distal-draining lymph nodes, and promoted the persistence of GC B cells, detected up to 4 mo after immunization.
2591 26219397 We found that POL-P3b upregulated the expression of CD80, CD86, CD83, and major histocompatibility complex class II molecules on DCs, stimulated production of more interleukin (IL)-12, tumor necrosis factor-α, and less IL-10.
2592 26231333 Expression of surface markers on APCs (CD80, CD86) and T-cells (CD4+, CD8+) was also evaluated.
2593 26310460 The pathophysiologic basis of these immune defects is hypothesized to be associated with a wide range of immunologic abnormalities, including an inability to sufficiently express the B7 family (B7-1, CD80; B7-2, CD86) of T-cell costimulatory molecules.
2594 26310460 However, testing the hypothesis that a state of chronic uremia contributes to attenuated expression of CD80 or CD86 has been difficult because few animal models faithfully recapitulate the immune defects observed in human CKD patients.
2595 26310460 The pathophysiologic basis of these immune defects is hypothesized to be associated with a wide range of immunologic abnormalities, including an inability to sufficiently express the B7 family (B7-1, CD80; B7-2, CD86) of T-cell costimulatory molecules.
2596 26310460 However, testing the hypothesis that a state of chronic uremia contributes to attenuated expression of CD80 or CD86 has been difficult because few animal models faithfully recapitulate the immune defects observed in human CKD patients.
2597 26318856 The PE25/PPE41 protein complex induced maturation of isolated mouse DCs in vitro, increasing expression of cell surface markers (CD80, CD86 and MHC-II), thereby promoting Th2 polarization via secretion of pro-inflammatory cytokines IL-4 and IL-10.
2598 26318856 In addition, PE25/PPE41 protein complex-activated DCs induced proliferation of mouse CD4(+) and CD8(+) T cells, and a strong humoral response in immunized mice.
2599 26339658 We found that the costimulatory CD86 and CD80 molecules were significantly upregulated on rBCGhIL-18-infected DCs, whereas the stimulation of DCs with nonrecombinant BCG was less effective.
2600 26339658 The rBCGhIL-18 increased IL-23, IL-10, and IP-10 production by DCs to a greater extent than nonrecombinant BCG.
2601 26339658 In a coculture system of CD4(+) T cells and loaded DCs, rBCGhIL-18 favoured strong IFN-γ but also IL-10 production by naive T cells but not by memory T cells.
2602 26339658 Thus the expression of IL-18 by recombinant BCG increases IL-23, IP-10, and IL-10 expression by human DCs and enhances their ability to induce IFN-γ and IL-10 expression by naive T cells, without affecting the maturation phenotype of the DCs.
2603 26394138 DNV stimulation of immature dendritic cells (iDCs) resulted in a significantly higher expression of DCs maturation markers (CD80, CD86 and HLA-DR) and induction of various cytokine and chemokine productions than in UVI-DENV-treated iDCs, suggesting a potential use of BCG- CS-NPs as adjuvant and delivery system for dengue vaccines.
2604 26417964 In addition, fighting can cause significant upregulation of CD80 in CD11c(+) cells in the spleen of male mice.
2605 26439698 PPE26 functionally stimulates macrophage activation by augmenting pro-inflammatory cytokine production (TNF-α, IL-6 and IL-12 p40) and the expression of cell surface markers (CD80, CD86, MHC class I and II).
2606 26439698 We observed that PPE26-treated macrophages effectively polarizes naïve CD4(+) T cells to up-regulate CXCR3 expression, and to secrete IFN-γ and IL-2, indicating PPE26 contributes to the Th1 polarization during the immune response.
2607 26439698 Moreover, PPE26 effectively induces the reciprocal expansion of effector/memory CD4(+)/CD8(+) CD44(high)CD62L(low) T cells in the spleens of mice immunized with this strain.