Gene name: integrin, alpha L (antigen CD11A (p180), lymphocyte function-associated antigen 1; alpha polypeptide)
# |
PMID |
Sentence |
1 |
1849315
|
CD3+, CD4+, CD8+, and CD20+ lymphocytes were comparable in two groups.
|
2 |
1849315
|
Natural killer cells as defined by CD16, CD56 and CD57 antigens were significantly reduced in CFS.
|
3 |
1849315
|
Monocytes from CFS displayed increased density (as determined by mean fluorescence channel numbers) of intercellular adhesion molecule 1 (ICAM-1) and lymphocyte function associated antigen 1 (LFA-1), but showed decreased enhancing response to recombinant interferon-gamma in vitro.
|
4 |
2894392
|
Human memory T lymphocytes express increased levels of three cell adhesion molecules (LFA-3, CD2, and LFA-1) and three other molecules (UCHL1, CDw29, and Pgp-1) and have enhanced IFN-gamma production.
|
5 |
2894392
|
Studies of cell-surface molecules involved in human T cell interaction reveal that differential expression of each of three adhesion molecules (LFA-3, CD2, and LFA-1) subdivides human peripheral blood T cells into major subpopulations.
|
6 |
2894392
|
Systematic analysis of the relationship between expression of these and other markers of T cell subsets demonstrates a single major subset of human peripheral blood T lymphocytes distinguished by enhanced expression of LFA-3, CD2, LFA-1, and three other markers (CDw29 [4B4], UCHL1, and Pgp-1).
|
7 |
2894392
|
Large differences in relative expression are observed for UCHL1 (29-fold) and LFA-3 (greater than 8-fold), and smaller differences (2- to 4-fold) are seen for CDw29, CD2, LFA-1, and Pgp-1.
|
8 |
2894392
|
Bimodal distribution of LFA-3 is found on both CD4+ cells and on CD8+ cells as well as on B lymphocytes (CD19+).
|
9 |
2894392
|
Neonatal T cells (CD3+) are comprised almost exclusively of the subset expressing low LFA-3, CD2, LFA-1, CDw29, and UCHL1.
|
10 |
2894392
|
Furthermore, the LFA-3+ subset made greater than fivefold more IFN-gamma than the LFA-3- subset in response to PHA, despite the fact that both subsets made equivalent amounts of IL-2.
|
11 |
2894392
|
This phenotypic and functional analysis of resting and activated newborn and adult T cells indicates that human memory T cells express enhanced levels of LFA-3, CD2, LFA-1, UCHL1, CDw29, and Pgp-1; we speculate that the increase in expression of T cell adhesion molecules LFA-3, CD2, and LFA-1 on memory cells is functionally important in their enhanced responsiveness.
|
12 |
2894392
|
Human memory T lymphocytes express increased levels of three cell adhesion molecules (LFA-3, CD2, and LFA-1) and three other molecules (UCHL1, CDw29, and Pgp-1) and have enhanced IFN-gamma production.
|
13 |
2894392
|
Studies of cell-surface molecules involved in human T cell interaction reveal that differential expression of each of three adhesion molecules (LFA-3, CD2, and LFA-1) subdivides human peripheral blood T cells into major subpopulations.
|
14 |
2894392
|
Systematic analysis of the relationship between expression of these and other markers of T cell subsets demonstrates a single major subset of human peripheral blood T lymphocytes distinguished by enhanced expression of LFA-3, CD2, LFA-1, and three other markers (CDw29 [4B4], UCHL1, and Pgp-1).
|
15 |
2894392
|
Large differences in relative expression are observed for UCHL1 (29-fold) and LFA-3 (greater than 8-fold), and smaller differences (2- to 4-fold) are seen for CDw29, CD2, LFA-1, and Pgp-1.
|
16 |
2894392
|
Bimodal distribution of LFA-3 is found on both CD4+ cells and on CD8+ cells as well as on B lymphocytes (CD19+).
|
17 |
2894392
|
Neonatal T cells (CD3+) are comprised almost exclusively of the subset expressing low LFA-3, CD2, LFA-1, CDw29, and UCHL1.
|
18 |
2894392
|
Furthermore, the LFA-3+ subset made greater than fivefold more IFN-gamma than the LFA-3- subset in response to PHA, despite the fact that both subsets made equivalent amounts of IL-2.
|
19 |
2894392
|
This phenotypic and functional analysis of resting and activated newborn and adult T cells indicates that human memory T cells express enhanced levels of LFA-3, CD2, LFA-1, UCHL1, CDw29, and Pgp-1; we speculate that the increase in expression of T cell adhesion molecules LFA-3, CD2, and LFA-1 on memory cells is functionally important in their enhanced responsiveness.
|
20 |
2894392
|
Human memory T lymphocytes express increased levels of three cell adhesion molecules (LFA-3, CD2, and LFA-1) and three other molecules (UCHL1, CDw29, and Pgp-1) and have enhanced IFN-gamma production.
|
21 |
2894392
|
Studies of cell-surface molecules involved in human T cell interaction reveal that differential expression of each of three adhesion molecules (LFA-3, CD2, and LFA-1) subdivides human peripheral blood T cells into major subpopulations.
|
22 |
2894392
|
Systematic analysis of the relationship between expression of these and other markers of T cell subsets demonstrates a single major subset of human peripheral blood T lymphocytes distinguished by enhanced expression of LFA-3, CD2, LFA-1, and three other markers (CDw29 [4B4], UCHL1, and Pgp-1).
|
23 |
2894392
|
Large differences in relative expression are observed for UCHL1 (29-fold) and LFA-3 (greater than 8-fold), and smaller differences (2- to 4-fold) are seen for CDw29, CD2, LFA-1, and Pgp-1.
|
24 |
2894392
|
Bimodal distribution of LFA-3 is found on both CD4+ cells and on CD8+ cells as well as on B lymphocytes (CD19+).
|
25 |
2894392
|
Neonatal T cells (CD3+) are comprised almost exclusively of the subset expressing low LFA-3, CD2, LFA-1, CDw29, and UCHL1.
|
26 |
2894392
|
Furthermore, the LFA-3+ subset made greater than fivefold more IFN-gamma than the LFA-3- subset in response to PHA, despite the fact that both subsets made equivalent amounts of IL-2.
|
27 |
2894392
|
This phenotypic and functional analysis of resting and activated newborn and adult T cells indicates that human memory T cells express enhanced levels of LFA-3, CD2, LFA-1, UCHL1, CDw29, and Pgp-1; we speculate that the increase in expression of T cell adhesion molecules LFA-3, CD2, and LFA-1 on memory cells is functionally important in their enhanced responsiveness.
|
28 |
2894392
|
Human memory T lymphocytes express increased levels of three cell adhesion molecules (LFA-3, CD2, and LFA-1) and three other molecules (UCHL1, CDw29, and Pgp-1) and have enhanced IFN-gamma production.
|
29 |
2894392
|
Studies of cell-surface molecules involved in human T cell interaction reveal that differential expression of each of three adhesion molecules (LFA-3, CD2, and LFA-1) subdivides human peripheral blood T cells into major subpopulations.
|
30 |
2894392
|
Systematic analysis of the relationship between expression of these and other markers of T cell subsets demonstrates a single major subset of human peripheral blood T lymphocytes distinguished by enhanced expression of LFA-3, CD2, LFA-1, and three other markers (CDw29 [4B4], UCHL1, and Pgp-1).
|
31 |
2894392
|
Large differences in relative expression are observed for UCHL1 (29-fold) and LFA-3 (greater than 8-fold), and smaller differences (2- to 4-fold) are seen for CDw29, CD2, LFA-1, and Pgp-1.
|
32 |
2894392
|
Bimodal distribution of LFA-3 is found on both CD4+ cells and on CD8+ cells as well as on B lymphocytes (CD19+).
|
33 |
2894392
|
Neonatal T cells (CD3+) are comprised almost exclusively of the subset expressing low LFA-3, CD2, LFA-1, CDw29, and UCHL1.
|
34 |
2894392
|
Furthermore, the LFA-3+ subset made greater than fivefold more IFN-gamma than the LFA-3- subset in response to PHA, despite the fact that both subsets made equivalent amounts of IL-2.
|
35 |
2894392
|
This phenotypic and functional analysis of resting and activated newborn and adult T cells indicates that human memory T cells express enhanced levels of LFA-3, CD2, LFA-1, UCHL1, CDw29, and Pgp-1; we speculate that the increase in expression of T cell adhesion molecules LFA-3, CD2, and LFA-1 on memory cells is functionally important in their enhanced responsiveness.
|
36 |
2894392
|
Human memory T lymphocytes express increased levels of three cell adhesion molecules (LFA-3, CD2, and LFA-1) and three other molecules (UCHL1, CDw29, and Pgp-1) and have enhanced IFN-gamma production.
|
37 |
2894392
|
Studies of cell-surface molecules involved in human T cell interaction reveal that differential expression of each of three adhesion molecules (LFA-3, CD2, and LFA-1) subdivides human peripheral blood T cells into major subpopulations.
|
38 |
2894392
|
Systematic analysis of the relationship between expression of these and other markers of T cell subsets demonstrates a single major subset of human peripheral blood T lymphocytes distinguished by enhanced expression of LFA-3, CD2, LFA-1, and three other markers (CDw29 [4B4], UCHL1, and Pgp-1).
|
39 |
2894392
|
Large differences in relative expression are observed for UCHL1 (29-fold) and LFA-3 (greater than 8-fold), and smaller differences (2- to 4-fold) are seen for CDw29, CD2, LFA-1, and Pgp-1.
|
40 |
2894392
|
Bimodal distribution of LFA-3 is found on both CD4+ cells and on CD8+ cells as well as on B lymphocytes (CD19+).
|
41 |
2894392
|
Neonatal T cells (CD3+) are comprised almost exclusively of the subset expressing low LFA-3, CD2, LFA-1, CDw29, and UCHL1.
|
42 |
2894392
|
Furthermore, the LFA-3+ subset made greater than fivefold more IFN-gamma than the LFA-3- subset in response to PHA, despite the fact that both subsets made equivalent amounts of IL-2.
|
43 |
2894392
|
This phenotypic and functional analysis of resting and activated newborn and adult T cells indicates that human memory T cells express enhanced levels of LFA-3, CD2, LFA-1, UCHL1, CDw29, and Pgp-1; we speculate that the increase in expression of T cell adhesion molecules LFA-3, CD2, and LFA-1 on memory cells is functionally important in their enhanced responsiveness.
|
44 |
2894392
|
Human memory T lymphocytes express increased levels of three cell adhesion molecules (LFA-3, CD2, and LFA-1) and three other molecules (UCHL1, CDw29, and Pgp-1) and have enhanced IFN-gamma production.
|
45 |
2894392
|
Studies of cell-surface molecules involved in human T cell interaction reveal that differential expression of each of three adhesion molecules (LFA-3, CD2, and LFA-1) subdivides human peripheral blood T cells into major subpopulations.
|
46 |
2894392
|
Systematic analysis of the relationship between expression of these and other markers of T cell subsets demonstrates a single major subset of human peripheral blood T lymphocytes distinguished by enhanced expression of LFA-3, CD2, LFA-1, and three other markers (CDw29 [4B4], UCHL1, and Pgp-1).
|
47 |
2894392
|
Large differences in relative expression are observed for UCHL1 (29-fold) and LFA-3 (greater than 8-fold), and smaller differences (2- to 4-fold) are seen for CDw29, CD2, LFA-1, and Pgp-1.
|
48 |
2894392
|
Bimodal distribution of LFA-3 is found on both CD4+ cells and on CD8+ cells as well as on B lymphocytes (CD19+).
|
49 |
2894392
|
Neonatal T cells (CD3+) are comprised almost exclusively of the subset expressing low LFA-3, CD2, LFA-1, CDw29, and UCHL1.
|
50 |
2894392
|
Furthermore, the LFA-3+ subset made greater than fivefold more IFN-gamma than the LFA-3- subset in response to PHA, despite the fact that both subsets made equivalent amounts of IL-2.
|
51 |
2894392
|
This phenotypic and functional analysis of resting and activated newborn and adult T cells indicates that human memory T cells express enhanced levels of LFA-3, CD2, LFA-1, UCHL1, CDw29, and Pgp-1; we speculate that the increase in expression of T cell adhesion molecules LFA-3, CD2, and LFA-1 on memory cells is functionally important in their enhanced responsiveness.
|
52 |
7489749
|
We, therefore, generated DC from peripheral blood of normal donors in the presence of granulocyte/macrophage colony-stimulating factor and interleukin-4.
|
53 |
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.
|
54 |
7583918
|
Coincident with the inability to stimulate MHC-matched T cells, there was diminished surface expression of class II MHC antigens and LFA-1-alpha and LFA-3 compared with that in uninfected cells: DR, 2.5 versus 10.6% (mean channel 0.3 versus 1.5); DQ, 1.6 versus 15.6% (mean channel 0.3 versus 3.0); DP, 5.0 versus 30.9% (mean channel 0.3 versus 2.0).
|
55 |
7583918
|
LFA-1-alpha expression was reduced (13.1 versus 20.0%; mean channel 1.5 versus 2.0) while LFA-3 expression remained the same (22.2 versus 324%; mean channel 3.0 versus 3.3).
|
56 |
7583918
|
Cytokine secretion was also perturbed, as interleukin 1-alpha (IL-1-alpha) and IL-1-beta production was lost 1 week after infection.
|
57 |
7583918
|
Production of IL-12 and IL-10 was unchanged, while IL-6 production was increased.
|
58 |
7583918
|
Coincident with the inability to stimulate MHC-matched T cells, there was diminished surface expression of class II MHC antigens and LFA-1-alpha and LFA-3 compared with that in uninfected cells: DR, 2.5 versus 10.6% (mean channel 0.3 versus 1.5); DQ, 1.6 versus 15.6% (mean channel 0.3 versus 3.0); DP, 5.0 versus 30.9% (mean channel 0.3 versus 2.0).
|
59 |
7583918
|
LFA-1-alpha expression was reduced (13.1 versus 20.0%; mean channel 1.5 versus 2.0) while LFA-3 expression remained the same (22.2 versus 324%; mean channel 3.0 versus 3.3).
|
60 |
7583918
|
Cytokine secretion was also perturbed, as interleukin 1-alpha (IL-1-alpha) and IL-1-beta production was lost 1 week after infection.
|
61 |
7583918
|
Production of IL-12 and IL-10 was unchanged, while IL-6 production was increased.
|
62 |
7590891
|
These ASC were isolated from peripheral blood after oral Ty21a, and dual labelled for binding of typhoid antigen and expression of various cell surface determinants: alpha 4 integrin (CD49d), CD45RO, CD45RA, L-selectin, CD44 and CD11a.
|
63 |
7590891
|
More ASC expressing CD45RO and alpha 4 integrin (CD49d) were bound to mesenteric lymph node and small intestine than to peripheral lymph node.
|
64 |
7768546
|
The lymphocyte differentiation antigens CD45RA, CD45RO, L-selectin, CD-11a CD-38, CD-44 and VLA-4 were all found on antigen-specific cells, but no particular pattern was recognizable in this small series of six subjects with different disease processes affecting the intestine.
|
65 |
7902828
|
Intercellular adhesion molecule-1 (ICAM-1) is one of 3 major ligands for the beta 2 integrin leucocyte function-associated antigen-1 (LFA-1).
|
66 |
7902828
|
Following stimulation with interferon gamma, the levels of sICAM-1 increased inversely to the levels of cell surface ICAM-1, suggesting sheeding.
|
67 |
7902828
|
However, treatment with cycloheximide, after stimulation with IFN-gamma, resulted in increased levels of membrane associated ICAM-1.
|
68 |
7910675
|
We have found that the cause of the blunted response to HBV vaccination is multifactorial and seems to be associated with the following: (1) A reduced number of TCR/CD3 antigen receptor complexes on freshly isolated uraemic CD4 T cells, especially in non-responders. (2) The blunted proliferative response of uraemic CD4 T cells isolated from non-responders and stimulated for 6 days by autologous monocytes presenting HBsAg was associated with the decreased density of the TCR/CD3 receptors. (3) Moreover, in uraemic non-responders the expression of adhesion and accessory molecules on monocytes (intercellular adhesion molecule-1/ICAM-1, HLA-DR/Ia/) was significantly decreased following the culture with autologous monocytes serving as HBsAg-presenting cells.
|
69 |
7910675
|
CD4 molecules and lymphocyte function antigen-1 beta/LFA-1 beta/ on helper-inducer T cells were increased before and after the culture. (4) These findings were also associated with a diminished binding capacity of IL-1 beta and IL-6 to their receptors on helper-inducer T cells. (5) IL-2, IFN-gamma and IL-4 production was decreased in uraemic non-responders, especially after 72 h of the culture. (6) Inhibited proliferation of helper-inducer T cells in uraemic non-responders was only partially reversible in the presence of exogenous IL-1 beta, IL-6, IL-2 and IFN-gamma. (7) HLA typing of uraemic non-responders was associated with extended haplotype: HLA A1,B8,DR3,DR7,DQ2.
|
70 |
8273596
|
There were no differences in the expression of CD3, CD4, CD8, CD25, CD45RA, CD45RO, LFA-1, VLA-4 or VLA-6 in inhibited cultures, except for slight decreases in CD25 and CD45RO in TT cultures.
|
71 |
8369170
|
Two weeks after infection, clones 63 and 30 lost expression of all class II antigens (DR, 81.7 vs. 0%; DQ, 15.6 vs. 0%; and DP, 76.9 vs. 0%) while retaining expression of class I (87.4 vs. 84.1%), LFA-1 (82.4 vs. 83.1%), and LFA-3 (79.1 vs. 74.7%) antigens when compared to uninfected cells.
|
72 |
8369170
|
Cytokine secretion and antigen processing were also perturbed as production of IL-1 was abolished 2 weeks after infection (although IL-6 secretion was augmented) and infected clone 63 cells failed to process exogenous antigen.
|
73 |
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.
|
74 |
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.
|
75 |
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.
|
76 |
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.
|
77 |
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.
|
78 |
8975870
|
Rabbit vascular endothelial adhesion molecules: ELAM-1 is most elevated in acute inflammation, whereas VCAM-1 and ICAM-1 predominate in chronic inflammation.
|
79 |
8975870
|
The sections were also stained immunohistochemically for the vascular endothelial adhesion molecules ICAM-1, ELAM-1 (E-selectin), and VCAM-1, and for the leukocyte ligands for ICAM-1: LFA-1 (CD11a/CD18) and Mac-1 (CD11b/CD18).
|
80 |
8975870
|
Infiltrating monocytes and lymphocytes expressed the LFA-1 ligand and infiltrating PMN expressed the MAC-1 ligand.
|
81 |
8975870
|
Rabbit vascular endothelial adhesion molecules: ELAM-1 is most elevated in acute inflammation, whereas VCAM-1 and ICAM-1 predominate in chronic inflammation.
|
82 |
8975870
|
The sections were also stained immunohistochemically for the vascular endothelial adhesion molecules ICAM-1, ELAM-1 (E-selectin), and VCAM-1, and for the leukocyte ligands for ICAM-1: LFA-1 (CD11a/CD18) and Mac-1 (CD11b/CD18).
|
83 |
8975870
|
Infiltrating monocytes and lymphocytes expressed the LFA-1 ligand and infiltrating PMN expressed the MAC-1 ligand.
|
84 |
9233612
|
FACS analysis of T cells from MLN and lung tissue demonstrated that T cells expressing any of the activation markers tested (LFA-1, CD25, CD44, CD45RB, CD49d, CD62L) always expressed high levels of CD44 and LFA-1.
|
85 |
9233612
|
These double-high T cells produced >99% of all anti-CD3 mAb-induced IL-4 and IFN-gamma.
|
86 |
9233612
|
Despite their similar phenotype, purified double-high lung parenchyma T cells produced markedly higher levels of IL-2, IL-4, and IFN-gamma, and contained a higher frequency of cytokine producers than their MLN counterparts.
|
87 |
9233612
|
Activation of the extracellular signal-regulated kinase (ERK)-2 in response to TCR cross-linking was detected in double-high T cells from lung tissue but not MLN.
|
88 |
9233612
|
The requirement for ERK signaling for maximal IFN-gamma synthesis could nevertheless be demonstrated in both populations by blockade with the inhibitor PD98509.
|
89 |
9292550
|
During the acute stages of infection, most CD8+ T cells in the spleen and bone marrow showed upregulated surface expression of the activation/memory marker, LFA-1 (LFA-1[hi]).
|
90 |
9292550
|
After clearing LCMV infection, the antiviral immune response subsided to homeostatic levels and the ratio of CD8+/LFA-1(hi) to CD8+/LFA-1(lo) T cells in the spleen and bone marrow of LCMV immune mice returned to the value observed in naive mice.
|
91 |
9292550
|
During the acute stages of infection, most CD8+ T cells in the spleen and bone marrow showed upregulated surface expression of the activation/memory marker, LFA-1 (LFA-1[hi]).
|
92 |
9292550
|
After clearing LCMV infection, the antiviral immune response subsided to homeostatic levels and the ratio of CD8+/LFA-1(hi) to CD8+/LFA-1(lo) T cells in the spleen and bone marrow of LCMV immune mice returned to the value observed in naive mice.
|
93 |
9814951
|
The major leukocyte adhesion molecules, such as leukocyte-function associated antigen-1 (LFA-1), intercellular adhesion molecule-1 (ICAM-1), and CD44, retain their biological functions when expressed on the virion surface, and have been shown to increase virus-cell interaction, enhance virus infectivity, and extend the host cell range of the virus.
|
94 |
9814951
|
Hence, LFA-1, ICAM-1, and other cellular adhesion molecules are involved in different stages of HIV-1 infection and profoundly affect HIV-1 neutralization by virus-specific antibodies.
|
95 |
9814951
|
The major leukocyte adhesion molecules, such as leukocyte-function associated antigen-1 (LFA-1), intercellular adhesion molecule-1 (ICAM-1), and CD44, retain their biological functions when expressed on the virion surface, and have been shown to increase virus-cell interaction, enhance virus infectivity, and extend the host cell range of the virus.
|
96 |
9814951
|
Hence, LFA-1, ICAM-1, and other cellular adhesion molecules are involved in different stages of HIV-1 infection and profoundly affect HIV-1 neutralization by virus-specific antibodies.
|
97 |
9890416
|
The expression of intercellular adhesion molecule 1 (ICAM-1) by endothelial cells is important for the regulation of adhesion and transendothelial migration of a variety of leukocytes that express the integrins lymphocyte function-associated antigen 1 (LFA-1) and/or Mac-1.
|
98 |
9890416
|
Strain-specific differences in the ability of Mor and CAM-70 to induce ICAM-1 correlated with their ability to activate the latent transcription factor NF-kappaB.
|
99 |
9890416
|
These studies suggest a preexisting component of MV particles that leads to strain-specific differences in the activation of NF-kappaB and the induction of ICAM-1 gene expression.
|
100 |
9920038
|
Herein we show that: (1) expansion of CD4+ and CD8+ subsets peaks 2 weeks after infective challenge in both challenged-vaccinated mice and infected controls, but the former exhibit a smaller increase in blastogenesis and in the numbers of activated CD11a(hi)CD4+ and CD11a(hi)CD8+ cells; (2) in long-term-vaccinated mice, expansion of activated subsets (CD62Llo/- and CD11a(hi)) is accelerated among CD8+ PBL 1 week after challenge; (3) challenged-vaccinated mice retract the CD8+-activated subset 5 weeks after challenge, different from infected controls; (4) protection conferred by CL-14 immunization can be adoptively transferred to naïve recipients with lymphocyte suspensions, and prior depletion of CD8+ (but not of CD4+) cells abolishes protective immunity.
|
101 |
10023864
|
MDDC presentation of the major house dust mite allergen Der p 2 resulted in 4-12-fold higher T-cell proliferation and markedly higher IFN-gamma and IL-5 production than PBMC cultures.
|
102 |
10023864
|
MDDC cultured from adherent cells, or CD14+, CD11b+ or Percoll-purified monocytes were comparable in presenting soluble Ag, and in stimulating allogeneic MLR.
|
103 |
10023864
|
Immunoprecipitation studies showed markedly elevated ICAM-1 expression but > 10-fold reduction in LFA-1 expression on MDDC compared with monocytes.
|
104 |
10079108
|
We coimmunized cDNA expression cassettes encoding the adhesion molecules intracellular adhesion molecule-1 (ICAM-1), lymphocyte function associated-3 (LFA-3), and vascular cell adhesion molecule-1 (VCAM-1) along with DNA immunogens, and we analyzed the resulting antigen-specific immune responses.
|
105 |
10079108
|
We observed that antigen-specific T-cell responses can be enhanced by the coexpression of DNA immunogen and adhesion molecules ICAM-1 and LFA-3.
|
106 |
10079108
|
Coexpression of ICAM-1 or LFA-3 molecules along with DNA immunogens resulted in a significant enhancement of T-helper cell proliferative responses.
|
107 |
10079108
|
Although VCAM-1 and ICAM-1 are similar in size, VCAM-1 coimmunization did not have any measurable effect on cell-mediated responses.
|
108 |
10079108
|
These results suggest that ICAM-1 and LFA-3 provide direct T-cell costimulation.
|
109 |
10079108
|
These observations are further supported by the finding that coinjection with ICAM-1 dramatically enhanced the level of interferon-gamma (IFN-gamma) and beta-chemokines macrophage inflammatory protein-1alpha (MIP-1alpha), MIP-1beta, and regulated on activation normal T-cell expression and secreted (RANTES) produced by stimulated T cells.
|
110 |
10079108
|
Through comparative studies, we observed that ICAM-1/LFA-1 T-cell costimulatory pathways are independent of CD86/CD28 pathways and that they may synergistically expand T-cell responses in vivo.
|
111 |
10205916
|
The disseminated disease in DCL patients is resistant to chemotherapy, and is characterized by a Th2 cytokine pattern, with a an absence of IL-2 AND ifn-gamma production when the lymphocytes are specifically stimulated by leishmanial antigen.
|
112 |
10205916
|
The epidermis of LCL lesions show ICAM-1 in patches and MHC uniformly expressed by keratinocytes.
|
113 |
10205916
|
DCL lesions are characterized by low CD4/CD8 and memory/naive T cell ratios, low numbers of T gamma delta cells, and an apparent defect in the expression of LFA-1 directional receptors.
|
114 |
10205916
|
MCL granulomas manifest high CD4/CD8 and memory/naive Tcel ratios, low numbers of T gamma delta, a high coefficients of cellular adhesion, with a mixed Th1/Th2 cytokine pattern.
|
115 |
10205916
|
LCL granulomas are characterized by a normal CD4/CD8 ratio, a high memory/naive cell ratio, numerous groups of T gamma delta, a high expression of directional receptors, and Th1/Th0 cytokine patterns.
|
116 |
10486153
|
They expressed a set of DC-associated markers, such as MHC class II, CD1a, CD4, CD11a, CD40, CD58, CD80, CD83, CD86, and CXCR4.
|
117 |
10752478
|
Peritumoral injection of various kinds of adjuvant, particularly Freund's complete adjuvant (FCA) plus bacillus Calmetee-Guerin (BCG), resulted in a marked accumulation of [3H]A-NK cells in mammary tumor tissues 24 h after injection, and simultaneously in the formation of vessels resembling high-endothelium venules (HEV), infiltration of LFA-1+ lymphocytes and expression of the ICAM-1 molecule on the tumor cells in the sites of tumor tissues.
|
118 |
10915558
|
LFA-3 plasmid DNA enhances Ag-specific humoral- and cellular-mediated protective immunity against herpes simplex virus-2 in vivo: involvement of CD4+ T cells in protection.
|
119 |
10915558
|
Adhesion molecules lymphocyte function-associated antigen (LFA)-1 and CD2 on T cells recognize intercellular adhesion molecule (ICAM)-1 and LFA-3 on APCs, respectively.
|
120 |
10915558
|
To investigate specific roles of adhesion molecules in immune induction we coimmunized LFA-3 and ICAM-1 cDNAs with a gD plasmid vaccine and then analyzed immune modulatory effects and protection against lethal herpes simplex virus (HSV)-2 challenge.
|
121 |
10915558
|
LFA-3 also enhanced Th cell proliferative responses and production of interleukin (IL)-2, interferon-gamma, IL-4, and IL-10 from splenocytes.
|
122 |
10915558
|
In contrast, ICAM-1 showed slightly increasing effects on T-cell proliferation responses and cytokine production. beta-Chemokine production (RANTES, MIP-1alpha, and MCP-1) was also influenced by LFA-3 or ICAM-1.
|
123 |
10915558
|
When animals were challenged with a lethal dose of HSV-2, LFA-3-coimmunized animals exhibited an enhanced survival rate, as compared to animals given ICAM-1 or gD DNA vaccine alone.
|
124 |
10915558
|
These studies demonstrate that adhesion molecule LFA-3 can play an important role in generating protective antigen-specific immunity in the HSV model system through increased induction of CD4+ Th1 T-cell subset.
|
125 |
11238679
|
Following enrichment, DC developed an activated phenotype with up-regulation of CD80, CD86, and CD83 expression.
|
126 |
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.
|
127 |
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.
|
128 |
11290815
|
Although OspA(165-184) stimulated nearly all OspA-specific human T cell clones tested to proliferate and secrete IFN-gamma and IL-13, LFA-1alpha(L326-345) stimulated approximately 10% of these clones to proliferate and a greater percentage to secrete IL-13.
|
129 |
11300483
|
Activation of these T cells was indicated by increased secretion of proinflammatory cytokines IFN-gamma, interleukin (IL)-12 and granulocyte/macrophage-colony stimulating factor, as well as specific tumor rejection and growth suppression in vaccinated CEA-transgenic mice after a lethal challenge with murine MC38 colon carcinoma cells.
|
130 |
11300483
|
These tumor cells were double transfected with CEA and the human epithelial cell adhesion molecule (Ep-CAM)/KSA and consequently served as a docking site for a recombinant antibody-IL2 fusion protein (KS1/4-IL2) recognizing KSA.
|
131 |
11300483
|
Importantly, the efficacy of the tumor-protective immune response was markedly increased by boosts with this antibody-IL2 fusion protein, resulting in more effective tumor rejection coupled with increased expression of costimulatory molecules B7.2/B7.2 and intercellular adhesion molecule 1 (ICAM-1) on dendritic cells and intensified release of proinflammatory cytokines IFN-gamma, IL-12, and granulocyte/macrophage-colony stimulating factor from T cells of successfully vaccinated CEA-transgenic C57BL/6J mice.
|
132 |
11300483
|
Increased T-cell activation mediated by boosts with KS1/4-IL2 fusion protein after tumor cell challenge was further indicated by expanded expression of T-cell activation markers CD25, CD28, CD69, and LFA-1.
|
133 |
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.
|
134 |
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.
|
135 |
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).
|
136 |
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.
|
137 |
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.
|
138 |
11591784
|
Fourth, activation of CTLs was augmented, as indicated by up-regulation of activity markers LFA-1, CD25, CD28, and CD69.
|
139 |
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.
|
140 |
11751943
|
Naive T cells are optimally delineated by their homogeneous CD95(low)CD28(high)beta(7) integrin(int) (CD4+) or CD95(low)CD28(int)CD11a(low) (CD8+) phenotypes.
|
141 |
11751943
|
CD4+ and CD8+ memory subsets were CD95(high), but otherwise phenotypically heterogeneous and included all IFN-gamma production, RM CMV-specific responses, effector site T cells, and demonstrated high in vivo proliferative activity ( approximately 10 times the naive subset).
|
142 |
12076272
|
Flow cytometry was used to study the expression of leukocyte adhesion molecules CD11a, CD11b, CD11c, CD14, and CD62L (L-selectin) and production of reactive oxygen species (ROS) in an ex vivo human whole-blood system stimulated with lipopolysaccharide-containing outer membrane vesicles (LPS-OMV) from N. meningitidis.
|
143 |
12076272
|
Results demonstrated a dose-dependent increase in surface expression of CD11a, CD11b, CD11c and CD14 in granulocytes and monocytes (maximal at 30-120 min) upon OMV-LPS challenge, whereas CD62L expression was heavily downregulated (maximal at 30-120 min).
|
144 |
12076272
|
Flow cytometry was used to study the expression of leukocyte adhesion molecules CD11a, CD11b, CD11c, CD14, and CD62L (L-selectin) and production of reactive oxygen species (ROS) in an ex vivo human whole-blood system stimulated with lipopolysaccharide-containing outer membrane vesicles (LPS-OMV) from N. meningitidis.
|
145 |
12076272
|
Results demonstrated a dose-dependent increase in surface expression of CD11a, CD11b, CD11c and CD14 in granulocytes and monocytes (maximal at 30-120 min) upon OMV-LPS challenge, whereas CD62L expression was heavily downregulated (maximal at 30-120 min).
|
146 |
12817001
|
A MAGE-3 peptide presented by HLA-DR1 to CD4+ T cells that were isolated from a melanoma patient vaccinated with a MAGE-3 protein.
|
147 |
12817001
|
We report here the identification of a new MAGE-3 peptide, which is recognized by three different CD4(+) T cell clones isolated from a melanoma patient vaccinated with a MAGE-3 protein.
|
148 |
12817001
|
These clones, which express different TCRs, recognize an HLA-DR1 peptide ACYEFLWGPRALVETS, which corresponds to the MAGE-3(267-282) and the MAGE-12(267-282) protein sequences.
|
149 |
12817001
|
One of the T cell clones, which expresses LFA-1 at a high level, lysed tumor cells expressing DR1 and MAGE-3.
|
150 |
12817001
|
Another of these DR1-restricted CD4(+) clones recognized not only the MAGE-3/12 peptide but also homologous peptides encoded by genes MAGE-1, 2, 4, 6, 10, and 11.
|
151 |
14630980
|
Abnormal cell surface antigen expression in individuals with variant CD45 splicing and histiocytosis.
|
152 |
14630980
|
Peripheral blood thymus-derived (T) CD8(+) cells from normal individuals carrying the C77G mutation show a significant decrease in the proportion of cells expressing L-selectin and increased frequency of cells with LFA-1(hi) expression.
|
153 |
14990720
|
Treatment with anti-LFA-1 delays the CD8+ cytotoxic-T-lymphocyte response and viral clearance in mice with primary respiratory syncytial virus infection.
|
154 |
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).
|
155 |
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.
|
156 |
15585412
|
Here, we demonstrate that transfection of control plasmid DNA (that does not express a gene product) into tumor cell lines induces a dramatic (>10-fold) increase in the expression of the interferon (IFN)-regulated genes IRF7, STAT1, MIG (approved gene symbol CXCL9), MHCI (MICA), and CD11a (ITGAL) in tumor cell lines.
|
157 |
15585412
|
The antibody depletion study indicates that the underlying mechanism by which transfection of control DNA induces IFN-regulated genes is the induction of a secreting factor(s) such as IFN-beta.
|
158 |
15699483
|
LFA-1 co-stimulation inhibits T(h)2 differentiation by down-modulating IL-4 responsiveness.
|
159 |
15699483
|
Specifically, CD28 co-stimulation promotes T(h)2 differentiation, whereas leukocyte function-associated antigen-1 (LFA-1) co-stimulation promotes T(h)1 differentiation and inhibits T(h)2 differentiation.
|
160 |
15699483
|
We show that co-stimulation through LFA-1 does not decrease early IL-4 secretion, but rather induces a loss in IL-4 responsiveness.
|
161 |
15699483
|
T cells primed in the context of LFA-1 co-stimulation require a 5-fold increase in the concentration of IL-4 required to drive T(h)2 differentiation, which is not mediated by a loss in IL-4R expression.
|
162 |
15699483
|
To determine whether LFA-1 co-stimulation impacts on proximal signaling from the IL-4R, we first identified a kinetic window where we could separate IL-4-driven T(h)2 differentiation from initial T cell priming.
|
163 |
15699483
|
Proximal IL-4R signaling, as evidenced by tyrosine phosphorylation of signal transducer and activator of transcription-6 (STAT6), was not inhibited by initial co-stimulation through LFA-1, yet these T cells still required higher amounts of IL-4 and corresponding higher levels of STAT6 activation to up-regulate GATA-3 and induce T(h)2 differentiation.
|
164 |
15699483
|
Thus, LFA-1 co-stimulation appears to interfere with GATA-3 expression downstream of STAT6.
|
165 |
15699483
|
These results suggest that LFA-1 co-stimulation functions as a threshold modulator of T(h)2 differentiation, increasing the effective concentration of IL-4 required to drive T(h)2 responses.
|
166 |
15699483
|
LFA-1 co-stimulation inhibits T(h)2 differentiation by down-modulating IL-4 responsiveness.
|
167 |
15699483
|
Specifically, CD28 co-stimulation promotes T(h)2 differentiation, whereas leukocyte function-associated antigen-1 (LFA-1) co-stimulation promotes T(h)1 differentiation and inhibits T(h)2 differentiation.
|
168 |
15699483
|
We show that co-stimulation through LFA-1 does not decrease early IL-4 secretion, but rather induces a loss in IL-4 responsiveness.
|
169 |
15699483
|
T cells primed in the context of LFA-1 co-stimulation require a 5-fold increase in the concentration of IL-4 required to drive T(h)2 differentiation, which is not mediated by a loss in IL-4R expression.
|
170 |
15699483
|
To determine whether LFA-1 co-stimulation impacts on proximal signaling from the IL-4R, we first identified a kinetic window where we could separate IL-4-driven T(h)2 differentiation from initial T cell priming.
|
171 |
15699483
|
Proximal IL-4R signaling, as evidenced by tyrosine phosphorylation of signal transducer and activator of transcription-6 (STAT6), was not inhibited by initial co-stimulation through LFA-1, yet these T cells still required higher amounts of IL-4 and corresponding higher levels of STAT6 activation to up-regulate GATA-3 and induce T(h)2 differentiation.
|
172 |
15699483
|
Thus, LFA-1 co-stimulation appears to interfere with GATA-3 expression downstream of STAT6.
|
173 |
15699483
|
These results suggest that LFA-1 co-stimulation functions as a threshold modulator of T(h)2 differentiation, increasing the effective concentration of IL-4 required to drive T(h)2 responses.
|
174 |
15699483
|
LFA-1 co-stimulation inhibits T(h)2 differentiation by down-modulating IL-4 responsiveness.
|
175 |
15699483
|
Specifically, CD28 co-stimulation promotes T(h)2 differentiation, whereas leukocyte function-associated antigen-1 (LFA-1) co-stimulation promotes T(h)1 differentiation and inhibits T(h)2 differentiation.
|
176 |
15699483
|
We show that co-stimulation through LFA-1 does not decrease early IL-4 secretion, but rather induces a loss in IL-4 responsiveness.
|
177 |
15699483
|
T cells primed in the context of LFA-1 co-stimulation require a 5-fold increase in the concentration of IL-4 required to drive T(h)2 differentiation, which is not mediated by a loss in IL-4R expression.
|
178 |
15699483
|
To determine whether LFA-1 co-stimulation impacts on proximal signaling from the IL-4R, we first identified a kinetic window where we could separate IL-4-driven T(h)2 differentiation from initial T cell priming.
|
179 |
15699483
|
Proximal IL-4R signaling, as evidenced by tyrosine phosphorylation of signal transducer and activator of transcription-6 (STAT6), was not inhibited by initial co-stimulation through LFA-1, yet these T cells still required higher amounts of IL-4 and corresponding higher levels of STAT6 activation to up-regulate GATA-3 and induce T(h)2 differentiation.
|
180 |
15699483
|
Thus, LFA-1 co-stimulation appears to interfere with GATA-3 expression downstream of STAT6.
|
181 |
15699483
|
These results suggest that LFA-1 co-stimulation functions as a threshold modulator of T(h)2 differentiation, increasing the effective concentration of IL-4 required to drive T(h)2 responses.
|
182 |
15699483
|
LFA-1 co-stimulation inhibits T(h)2 differentiation by down-modulating IL-4 responsiveness.
|
183 |
15699483
|
Specifically, CD28 co-stimulation promotes T(h)2 differentiation, whereas leukocyte function-associated antigen-1 (LFA-1) co-stimulation promotes T(h)1 differentiation and inhibits T(h)2 differentiation.
|
184 |
15699483
|
We show that co-stimulation through LFA-1 does not decrease early IL-4 secretion, but rather induces a loss in IL-4 responsiveness.
|
185 |
15699483
|
T cells primed in the context of LFA-1 co-stimulation require a 5-fold increase in the concentration of IL-4 required to drive T(h)2 differentiation, which is not mediated by a loss in IL-4R expression.
|
186 |
15699483
|
To determine whether LFA-1 co-stimulation impacts on proximal signaling from the IL-4R, we first identified a kinetic window where we could separate IL-4-driven T(h)2 differentiation from initial T cell priming.
|
187 |
15699483
|
Proximal IL-4R signaling, as evidenced by tyrosine phosphorylation of signal transducer and activator of transcription-6 (STAT6), was not inhibited by initial co-stimulation through LFA-1, yet these T cells still required higher amounts of IL-4 and corresponding higher levels of STAT6 activation to up-regulate GATA-3 and induce T(h)2 differentiation.
|
188 |
15699483
|
Thus, LFA-1 co-stimulation appears to interfere with GATA-3 expression downstream of STAT6.
|
189 |
15699483
|
These results suggest that LFA-1 co-stimulation functions as a threshold modulator of T(h)2 differentiation, increasing the effective concentration of IL-4 required to drive T(h)2 responses.
|
190 |
15699483
|
LFA-1 co-stimulation inhibits T(h)2 differentiation by down-modulating IL-4 responsiveness.
|
191 |
15699483
|
Specifically, CD28 co-stimulation promotes T(h)2 differentiation, whereas leukocyte function-associated antigen-1 (LFA-1) co-stimulation promotes T(h)1 differentiation and inhibits T(h)2 differentiation.
|
192 |
15699483
|
We show that co-stimulation through LFA-1 does not decrease early IL-4 secretion, but rather induces a loss in IL-4 responsiveness.
|
193 |
15699483
|
T cells primed in the context of LFA-1 co-stimulation require a 5-fold increase in the concentration of IL-4 required to drive T(h)2 differentiation, which is not mediated by a loss in IL-4R expression.
|
194 |
15699483
|
To determine whether LFA-1 co-stimulation impacts on proximal signaling from the IL-4R, we first identified a kinetic window where we could separate IL-4-driven T(h)2 differentiation from initial T cell priming.
|
195 |
15699483
|
Proximal IL-4R signaling, as evidenced by tyrosine phosphorylation of signal transducer and activator of transcription-6 (STAT6), was not inhibited by initial co-stimulation through LFA-1, yet these T cells still required higher amounts of IL-4 and corresponding higher levels of STAT6 activation to up-regulate GATA-3 and induce T(h)2 differentiation.
|
196 |
15699483
|
Thus, LFA-1 co-stimulation appears to interfere with GATA-3 expression downstream of STAT6.
|
197 |
15699483
|
These results suggest that LFA-1 co-stimulation functions as a threshold modulator of T(h)2 differentiation, increasing the effective concentration of IL-4 required to drive T(h)2 responses.
|
198 |
15699483
|
LFA-1 co-stimulation inhibits T(h)2 differentiation by down-modulating IL-4 responsiveness.
|
199 |
15699483
|
Specifically, CD28 co-stimulation promotes T(h)2 differentiation, whereas leukocyte function-associated antigen-1 (LFA-1) co-stimulation promotes T(h)1 differentiation and inhibits T(h)2 differentiation.
|
200 |
15699483
|
We show that co-stimulation through LFA-1 does not decrease early IL-4 secretion, but rather induces a loss in IL-4 responsiveness.
|
201 |
15699483
|
T cells primed in the context of LFA-1 co-stimulation require a 5-fold increase in the concentration of IL-4 required to drive T(h)2 differentiation, which is not mediated by a loss in IL-4R expression.
|
202 |
15699483
|
To determine whether LFA-1 co-stimulation impacts on proximal signaling from the IL-4R, we first identified a kinetic window where we could separate IL-4-driven T(h)2 differentiation from initial T cell priming.
|
203 |
15699483
|
Proximal IL-4R signaling, as evidenced by tyrosine phosphorylation of signal transducer and activator of transcription-6 (STAT6), was not inhibited by initial co-stimulation through LFA-1, yet these T cells still required higher amounts of IL-4 and corresponding higher levels of STAT6 activation to up-regulate GATA-3 and induce T(h)2 differentiation.
|
204 |
15699483
|
Thus, LFA-1 co-stimulation appears to interfere with GATA-3 expression downstream of STAT6.
|
205 |
15699483
|
These results suggest that LFA-1 co-stimulation functions as a threshold modulator of T(h)2 differentiation, increasing the effective concentration of IL-4 required to drive T(h)2 responses.
|
206 |
15699483
|
LFA-1 co-stimulation inhibits T(h)2 differentiation by down-modulating IL-4 responsiveness.
|
207 |
15699483
|
Specifically, CD28 co-stimulation promotes T(h)2 differentiation, whereas leukocyte function-associated antigen-1 (LFA-1) co-stimulation promotes T(h)1 differentiation and inhibits T(h)2 differentiation.
|
208 |
15699483
|
We show that co-stimulation through LFA-1 does not decrease early IL-4 secretion, but rather induces a loss in IL-4 responsiveness.
|
209 |
15699483
|
T cells primed in the context of LFA-1 co-stimulation require a 5-fold increase in the concentration of IL-4 required to drive T(h)2 differentiation, which is not mediated by a loss in IL-4R expression.
|
210 |
15699483
|
To determine whether LFA-1 co-stimulation impacts on proximal signaling from the IL-4R, we first identified a kinetic window where we could separate IL-4-driven T(h)2 differentiation from initial T cell priming.
|
211 |
15699483
|
Proximal IL-4R signaling, as evidenced by tyrosine phosphorylation of signal transducer and activator of transcription-6 (STAT6), was not inhibited by initial co-stimulation through LFA-1, yet these T cells still required higher amounts of IL-4 and corresponding higher levels of STAT6 activation to up-regulate GATA-3 and induce T(h)2 differentiation.
|
212 |
15699483
|
Thus, LFA-1 co-stimulation appears to interfere with GATA-3 expression downstream of STAT6.
|
213 |
15699483
|
These results suggest that LFA-1 co-stimulation functions as a threshold modulator of T(h)2 differentiation, increasing the effective concentration of IL-4 required to drive T(h)2 responses.
|
214 |
15699483
|
LFA-1 co-stimulation inhibits T(h)2 differentiation by down-modulating IL-4 responsiveness.
|
215 |
15699483
|
Specifically, CD28 co-stimulation promotes T(h)2 differentiation, whereas leukocyte function-associated antigen-1 (LFA-1) co-stimulation promotes T(h)1 differentiation and inhibits T(h)2 differentiation.
|
216 |
15699483
|
We show that co-stimulation through LFA-1 does not decrease early IL-4 secretion, but rather induces a loss in IL-4 responsiveness.
|
217 |
15699483
|
T cells primed in the context of LFA-1 co-stimulation require a 5-fold increase in the concentration of IL-4 required to drive T(h)2 differentiation, which is not mediated by a loss in IL-4R expression.
|
218 |
15699483
|
To determine whether LFA-1 co-stimulation impacts on proximal signaling from the IL-4R, we first identified a kinetic window where we could separate IL-4-driven T(h)2 differentiation from initial T cell priming.
|
219 |
15699483
|
Proximal IL-4R signaling, as evidenced by tyrosine phosphorylation of signal transducer and activator of transcription-6 (STAT6), was not inhibited by initial co-stimulation through LFA-1, yet these T cells still required higher amounts of IL-4 and corresponding higher levels of STAT6 activation to up-regulate GATA-3 and induce T(h)2 differentiation.
|
220 |
15699483
|
Thus, LFA-1 co-stimulation appears to interfere with GATA-3 expression downstream of STAT6.
|
221 |
15699483
|
These results suggest that LFA-1 co-stimulation functions as a threshold modulator of T(h)2 differentiation, increasing the effective concentration of IL-4 required to drive T(h)2 responses.
|
222 |
15984339
|
We have investigated the hypothesis that active viral infection increases the susceptibility of bovine leukocytes to the M. haemolytica leukotoxin by increasing the expression of or activating the beta2 integrin CD11a/CD18 (LFA-1) on the leukocyte surface.
|
223 |
15984339
|
In vitro exposure to proinflammatory cytokines (i.e. interleukin-1beta, tumor necrosis factor-alpha and interferon-gamma) increases LFA-1 expression on bovine leukocytes, which in turn correlates with increased binding and responsiveness to the leukotoxin.
|
224 |
15984339
|
We have investigated the hypothesis that active viral infection increases the susceptibility of bovine leukocytes to the M. haemolytica leukotoxin by increasing the expression of or activating the beta2 integrin CD11a/CD18 (LFA-1) on the leukocyte surface.
|
225 |
15984339
|
In vitro exposure to proinflammatory cytokines (i.e. interleukin-1beta, tumor necrosis factor-alpha and interferon-gamma) increases LFA-1 expression on bovine leukocytes, which in turn correlates with increased binding and responsiveness to the leukotoxin.
|
226 |
16313358
|
We found changes in cell-surface expression of CD11a, CD44, CD45RB, CD49d, CD54 and CD62L on Env-specific CD8(+) T cells that appeared to differentiate them from other CD8(+) T cells within 1 week to 1 month following immunization.
|
227 |
16313358
|
However, CD62L expression did not correlate with differences in the abilities of CTLs to proliferate or produce interferon gamma (IFN-gamma) and tumour necrosis factor alpha (TNF-alpha) in vitro in response to Env peptide stimulation.
|
228 |
16522784
|
The LFA-1 (CD11a and CD18) integrin molecule is constitutively expressed on the T-cell surface.
|
229 |
16522784
|
Following T-cell activation, a rapid conformational change of LFA-1 to an "adhesive" state occurs, allowing LFA-1 binding to intracellular cell adhesion molecule type 1 (ICAM-1)-expressing targets, such as antigen-presenting cells.
|
230 |
16522784
|
Experimental controls indicated that the T cell-bead attachment was LFA-1 and ICAM-1 specific.
|
231 |
16522784
|
By using multicolor cytometry, the responding adhesive T-cell population was usually identified as a distinct subset of T cells with the following phenotype: CD3+ CD4+ or CD8+ CD19- CD16- CD45RO+ CD62L+ CD27+ CD57-.
|
232 |
16522784
|
The LFA-1 (CD11a and CD18) integrin molecule is constitutively expressed on the T-cell surface.
|
233 |
16522784
|
Following T-cell activation, a rapid conformational change of LFA-1 to an "adhesive" state occurs, allowing LFA-1 binding to intracellular cell adhesion molecule type 1 (ICAM-1)-expressing targets, such as antigen-presenting cells.
|
234 |
16522784
|
Experimental controls indicated that the T cell-bead attachment was LFA-1 and ICAM-1 specific.
|
235 |
16522784
|
By using multicolor cytometry, the responding adhesive T-cell population was usually identified as a distinct subset of T cells with the following phenotype: CD3+ CD4+ or CD8+ CD19- CD16- CD45RO+ CD62L+ CD27+ CD57-.
|
236 |
16522784
|
The LFA-1 (CD11a and CD18) integrin molecule is constitutively expressed on the T-cell surface.
|
237 |
16522784
|
Following T-cell activation, a rapid conformational change of LFA-1 to an "adhesive" state occurs, allowing LFA-1 binding to intracellular cell adhesion molecule type 1 (ICAM-1)-expressing targets, such as antigen-presenting cells.
|
238 |
16522784
|
Experimental controls indicated that the T cell-bead attachment was LFA-1 and ICAM-1 specific.
|
239 |
16522784
|
By using multicolor cytometry, the responding adhesive T-cell population was usually identified as a distinct subset of T cells with the following phenotype: CD3+ CD4+ or CD8+ CD19- CD16- CD45RO+ CD62L+ CD27+ CD57-.
|
240 |
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).
|
241 |
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.
|
242 |
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).
|
243 |
17151096
|
Eight days following infection, we found that 85 to 95% of CD8 T cells exhibit an effector phenotype as indicated by granzyme B, 1B11, CD62L, CD11a, and CD127 expression.
|
244 |
17187395
|
Enhanced antigen-specific primary CD4+ and CD8+ responses by codelivery of ovalbumin and toll-like receptor ligand monophosphoryl lipid A in poly(D,L-lactic-co-glycolic acid) nanoparticles.
|
245 |
17187395
|
The purpose of this research was to investigate the use of biodegradable poly(D,L-lactic-co-glycolic acid) nanoparticles (PLGA-NP) as a vaccine delivery system to codeliver antigen, ovalbumin (OVA) along with monophosphoryl lipid A (MPLA) as adjuvant for induction of potent CD4(+) and CD8(+) T cell responses.
|
246 |
17187395
|
Particulate delivery of OVA and MPLA to the DCs lead to markedly increase in in vitro CD8(+) T cell T cell proliferative responses (stimulation index >3000) and >13-folds increase in in vivo clonal expanded CD4(+) T cells.
|
247 |
17187395
|
The expanded T cells were capable of cytokine secretion and expressed an activation and memory surface phenotype (CD62L(lo), CD11a(hi), and CD44(hi)).
|
248 |
17187395
|
Codelivery of antigen and MPLA in PLGA-NP offers an effective method for induction of potent antigen specific CD4(+) and CD8(+) T cell responses.
|
249 |
18032592
|
Because BPE cells did not express the LKT receptor CD11a/CD18, we infer that contaminating LPS was responsible for the decreased TEER.
|
250 |
18549647
|
The function of exosomes in immunity was detected through block test after blocking some molecules (CD11a, CD11b, CD11c, CD54, MFG-E8 and CD83).
|
251 |
18549647
|
The exosomes derived from mDC induced with different cytokines (LPS, TNF-alpha, CpG, CD40L) were no significant difference in concentrations but were different in effect.
|
252 |
18549647
|
The immunity function of exosomes depended on CD11a, CD11b, CD11c, CD54, MFG-E8 and CD83 molecules, the effect of priming T cells is reduced when these molecules were blocked.
|
253 |
18549647
|
Confocal microscopy and FACS assay showed that blocking CD11a and CD54 could inhibit exosome-targeted DC and DC-embedded exosomes.
|
254 |
18549647
|
The function of exosomes in immunity was detected through block test after blocking some molecules (CD11a, CD11b, CD11c, CD54, MFG-E8 and CD83).
|
255 |
18549647
|
The exosomes derived from mDC induced with different cytokines (LPS, TNF-alpha, CpG, CD40L) were no significant difference in concentrations but were different in effect.
|
256 |
18549647
|
The immunity function of exosomes depended on CD11a, CD11b, CD11c, CD54, MFG-E8 and CD83 molecules, the effect of priming T cells is reduced when these molecules were blocked.
|
257 |
18549647
|
Confocal microscopy and FACS assay showed that blocking CD11a and CD54 could inhibit exosome-targeted DC and DC-embedded exosomes.
|
258 |
18549647
|
The function of exosomes in immunity was detected through block test after blocking some molecules (CD11a, CD11b, CD11c, CD54, MFG-E8 and CD83).
|
259 |
18549647
|
The exosomes derived from mDC induced with different cytokines (LPS, TNF-alpha, CpG, CD40L) were no significant difference in concentrations but were different in effect.
|
260 |
18549647
|
The immunity function of exosomes depended on CD11a, CD11b, CD11c, CD54, MFG-E8 and CD83 molecules, the effect of priming T cells is reduced when these molecules were blocked.
|
261 |
18549647
|
Confocal microscopy and FACS assay showed that blocking CD11a and CD54 could inhibit exosome-targeted DC and DC-embedded exosomes.
|
262 |
19628058
|
WSL enhanced Th1 cytokine IFN-gamma expression in Con A primed splenocytes in vitro.
|
263 |
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.
|
264 |
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.
|
265 |
19628058
|
Further, the effect of WSL in immunized mice elicited up-regulation of beta-integrins LFA (CD11a) and Mac-1 (CD11b) in splenocytes.
|
266 |
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.
|
267 |
19933864
|
In this study, we demonstrate that Ag but not inflammation-driven changes in expression of CD11a and CD8alpha can be used to distinguish naive from Ag-experienced (effector and memory) CD8 T cells after infection or vaccination.
|
268 |
20526279
|
During the assay, T lymphocytes are allowed to adhere and migrate on a substrate coated with intercellular adhesion molecule-1 (ICAM-1), a ligand for integrin LFA-1, and stromal cell-derived factor-1 (SDF-1).
|
269 |
21399646
|
Such activated DCs, without further association with alum, show high affinity and stable binding with CD4(+) T cells via the adhesion molecules intercellular adhesion molecule-1 (ICAM-1) and lymphocyte function-associated antigen-1 (LFA-1).
|
270 |
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.
|
271 |
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.
|
272 |
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.
|
273 |
22002875
|
A clonal model for human CD8+ regulatory T cells: unrestricted contact-dependent killing of activated CD4+ T cells.
|
274 |
22002875
|
Previous studies in murine systems have demonstrated that CD8(+) Treg cells down-regulate immune responses in vivo through suppressing activated CD4(+) T cells.
|
275 |
22002875
|
Here we describe novel regulatory CD8(+) T-cell clones isolated from healthy human peripheral blood following in vitro stimulation with autologous Epstein-Barr virus (EBV)-specific CD4(+) T cells.
|
276 |
22002875
|
TCR activation of CD4(+) target T cells was required for CD8(+) Treg cells to exert suppressive activity, which was mediated through lysis of CD4(+) targets in a cell contact-dependent manner.
|
277 |
22002875
|
Suppression was independent of Foxp3 expression in CD8(+) Treg cells, HLA compatibility between CD8(+) Treg cells and CD4(+) target cells and antigen-specificity of CD4(+) target T cells.
|
278 |
22002875
|
CD8(+) Treg clones expressed CD3 and a variety of TCR V(β) chains as well as CD56, CD69, CD62L and CD95 but did not express CD16, CD161, CXCR4 and CCR7.
|
279 |
22002875
|
When used together, antibodies specific for CD11a/CD18 and CD8 inhibited suppressive activity of CD8(+) Treg clones.
|
280 |
22058417
|
Tissue-resident memory CD4 T cells in the lung did not circulate or emigrate from the lung in parabiosis experiments, were protected from in vivo Ab labeling, and expressed elevated levels of CD69 and CD11a compared with those of circulating memory populations.
|
281 |
22532682
|
HIV-1 infection ex vivo accelerates measles virus infection by upregulating signaling lymphocytic activation molecule (SLAM) in CD4+ T cells.
|
282 |
22532682
|
The results showed that the frequencies of MVwt- and MVvac-infected CD4(+) T cells within the resting peripheral blood mononuclear cells (PBMCs) were increased 3- to 4-fold after HIV-1 infection, and this was associated with a marked upregulation of signaling lymphocytic activation molecule (SLAM) expression on CD4(+) T cells but not on CD8(+) T cells.
|
283 |
22532682
|
Notably, SLAM upregulation was observed in HIV-infected as well as -uninfected CD4(+) T cells and was abrogated by the removal of HLA-DR(+) cells from the PBMC culture.
|
284 |
22532682
|
Rather, CD4(+) T cell activation mediated through direct contact with dendritic cells via leukocyte function-associated molecule 1 (LFA-1)/intercellular adhesion molecule 1 (ICAM-1) and LFA-3/CD2 was critical.
|
285 |
22532682
|
Thus, HIV-1 infection induces a high level of SLAM expression on CD4(+) T cells, which may enhance their susceptibility to MV and exacerbate measles in coinfected individuals.
|
286 |
22689994
|
We found that overexpression of the hematopoietic-specific RhoH protein in the presence of chemokine signals resulted in decreased Rap1-GTP and LFA-1 adhesiveness to ICAM-1, thus impairing T-cell chemotaxis; while in the presence of TCR signals, there were enhanced and sustained Rap1-GTP and LFA-1 activation as well as prolonged T:APC conjugates.
|
287 |
22689994
|
RT-PCR analyses of activated CD4(+) T cells and live images of T-cell migration and immunological synapse (IS) formation revealed that functions of RhoH took place primarily at the levels of transcription and intracellular distribution.
|
288 |
22711877
|
Experiments with knockout mice and blocking antibodies reveal that the uropod elongation and microparticle formation are the result of LFA-1-mediated adhesion and VLA-3-mediated cell migration through the vascular basement membrane.
|
289 |
22990800
|
Here, we describe a surrogate activation marker approach that uses the coordinate downregulation of the CD8α chain and upregulation of the integrin CD11a to track the total CD8 T cell response to Plasmodium vaccination via flow cytometry.
|
290 |
23935498
|
Of the 100 identified serotypes, ∼90% bind domain 1 of human intercellular adhesion molecule-1 (ICAM-1) as their cellular receptor, making this an attractive target for development of therapies; however, ICAM-1 domain 1 is also required for host defence and regulation of cell trafficking, principally via its major ligand LFA-1.
|
291 |
23935498
|
Interestingly, 14C11 did not prevent cell adhesion via human ICAM-1/LFA-1 interactions in vitro, suggesting the epitope targeted by 14C11 was specific for viral entry.
|
292 |
23935498
|
Of the 100 identified serotypes, ∼90% bind domain 1 of human intercellular adhesion molecule-1 (ICAM-1) as their cellular receptor, making this an attractive target for development of therapies; however, ICAM-1 domain 1 is also required for host defence and regulation of cell trafficking, principally via its major ligand LFA-1.
|
293 |
23935498
|
Interestingly, 14C11 did not prevent cell adhesion via human ICAM-1/LFA-1 interactions in vitro, suggesting the epitope targeted by 14C11 was specific for viral entry.
|
294 |
23980113
|
Here, we have further characterized vaccine-induced changes in the CD8(+) T cell phenotype and demonstrated significant upregulation of CD11c on CD3(+) CD8b(+) T cells in the liver, spleen, and peripheral blood.
|
295 |
23980113
|
CD11c(+) CD8(+) T cells are predominantly CD11a(hi) CD44(hi) CD62L(-), indicative of antigen-experienced effector cells.
|
296 |
23980113
|
Following in vitro restimulation with malaria-infected hepatocytes, CD11c(+) CD8(+) T cells expressed inflammatory cytokines and cytotoxicity markers, including IFN-γ, tumor necrosis factor alpha (TNF-α), interleukin-2 (IL-2), perforin, and CD107a.
|
297 |
23980113
|
CD11c(-) CD8(+) T cells, on the other hand, expressed negligible amounts of all inflammatory cytokines and cytotoxicity markers tested, indicating that CD11c marks multifunctional effector CD8(+) T cells.
|
298 |
23980113
|
Coculture of CD11c(+), but not CD11c(-), CD8(+) T cells with sporozoite-infected primary hepatocytes significantly inhibited liver-stage parasite development.
|
299 |
23980113
|
Tetramer staining for the immunodominant circumsporozoite protein (CSP)-specific CD8(+) T cell epitope demonstrated that approximately two-thirds of CSP-specific cells expressed CD11c at the peak of the CD11c(+) CD8(+) T cell response, but CD11c expression was lost as the CD8(+) T cells entered the memory phase.
|
300 |
23980113
|
Further analyses showed that CD11c(+) CD8(+) T cells are primarily KLRG1(+) CD127(-) terminal effectors, whereas all KLRG1(-) CD127(+) memory precursor effector cells are CD11c(-) CD8(+) T cells.
|
301 |
24307588
|
Using a primary cell-based coculture model, we show that monocyte-derived macrophages (MDM) efficiently transmit a high-multiplicity HIV-1 infection to autologous CD4(+) T cells through a viral envelope glycoprotein (Env) receptor- and actin-dependent virological synapse (VS), facilitated by interactions between ICAM-1 and LFA-1.
|
302 |
24348253
|
Semen CD4+ T cells and macrophages are productively infected at all stages of SIV infection in macaques.
|
303 |
24348253
|
Finally, we cocultured semen CD4(+) T cells and macrophages with a cell line permissive to SIV infection to assess their infectivity in vitro.
|
304 |
24348253
|
Lymphocytes had a mucosal phenotype and expressed activation (CD69 & HLA-DR) and migration (CCR5, CXCR4, LFA-1) markers.
|
305 |
24348253
|
CD69 expression was increased in semen T cells by SIV infection, at all stages of infection.
|
306 |
24348253
|
Macrophages predominated at all stages and expressed CD4, CCR5, MAC-1 and LFA-1.
|
307 |
24348253
|
Altogether, we demonstrated that semen contains the two major SIV-target cells (CD4+ T cells and macrophages).
|
308 |
24348253
|
Semen CD4+ T cells and macrophages are productively infected at all stages of SIV infection in macaques.
|
309 |
24348253
|
Finally, we cocultured semen CD4(+) T cells and macrophages with a cell line permissive to SIV infection to assess their infectivity in vitro.
|
310 |
24348253
|
Lymphocytes had a mucosal phenotype and expressed activation (CD69 & HLA-DR) and migration (CCR5, CXCR4, LFA-1) markers.
|
311 |
24348253
|
CD69 expression was increased in semen T cells by SIV infection, at all stages of infection.
|
312 |
24348253
|
Macrophages predominated at all stages and expressed CD4, CCR5, MAC-1 and LFA-1.
|
313 |
24348253
|
Altogether, we demonstrated that semen contains the two major SIV-target cells (CD4+ T cells and macrophages).
|
314 |
24489846
|
Here we report on a novel approach to utilize the binding of Intracellular Adhesion Molecule-1 (ICAM-1) to its binding partner, Lymphocyte Function-associated Antigen-1 (LFA-1), on B cells to enhance B cell activation and RABV-specific antibody responses.
|
315 |
24489846
|
While rRABV-mICAM-1 showed 10-100-fold decrease in viral titers on baby hamster kidney cells compared to the parental virus (rRABV), rRABV-mICAM-1 infected and activated primary murine B cells in-vitro more efficiently than rRABV, as indicated by significant upregulation of CD69, CD40, and MHCII on the surface of infected B cells.
|
316 |
25666226
|
Camel milk cells from 8 Gram-positive and 5 Gram-negative infected camels were examined with flow cytometry using cross-reacting antibodies like, anti-CD4(+), CD8(+), WC+1(+)γδ, CD62L, CD11a(+)/CD18, LPAM-1, CXCR2.
|
317 |
25666226
|
The statistical analysis of the mean percentage of the expressed CD markers has shown that CD62L, CXCR-2, LPAM-1, CD11a/CD18, CD8(+), IL-6R and CD20(+) were expressed in significant differences in either type of the infection.
|
318 |
21926977
|
These cells, specific to multiple viral and self-tumor antigens, were found within a CD45RO(-), CCR7(+), CD45RA(+), CD62L(+), CD27(+), CD28(+) and IL-7Rα(+) T cell compartment characteristic of naive T cells.
|
319 |
21926977
|
However, they expressed large amounts of CD95, IL-2Rβ, CXCR3, and LFA-1, and showed numerous functional attributes distinctive of memory cells.
|