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PMID |
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10205916
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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.
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2 |
10205916
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The epidermis of LCL lesions show ICAM-1 in patches and MHC uniformly expressed by keratinocytes.
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3 |
10205916
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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.
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4 |
10205916
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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.
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5 |
10205916
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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.
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6 |
11588046
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Recently a single C-type lectin receptor (CLR), DC-SIGN, has been reported to be the predominant receptor on monocyte-derived DCs (MDDCs) rather than CD4.
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7 |
11588046
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However, in contrast to recent reports, gp120 binding to at least 3 CLRs was observed: DC-SIGN, mannose receptor, and unidentified trypsin resistant CLR(s).
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8 |
15342937
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Selective generation of different dendritic cell precursors from CD34+ cells by interleukin-6 and interleukin-3.
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9 |
15342937
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Several cytokines, especially stem cell factor (SCF) and FLT3-ligand (FL), have been identified as essential to produce large numbers of myeloid precursors and even to increase DC yield obtained by the action of granulocyte-macrophage colony-stimulating factor (GM-CSF) and tumor necrosis factor alpha (TNF-alpha).
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10 |
15342937
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We report here that in the absence of serum, SCF, FL, and thrombopoietin (TPO) plus interleukin-6 (IL-6) and SCF, FL, and TPO plus IL-3 were able to generate CD14+CD1a- and CD14- CD1a+ myeloid DC precursors from CD34+ cells, but IL-6 had an inhibitory effect on the generation of CD14- CD1a+ cells.
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11 |
15342937
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Both DC precursors differentiated into mature DCs by GM-CSF, IL-4, and TNF-alpha, and DCs obtained from both types of culture exhibited equal allostimulatory capacity.
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12 |
15342937
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CD1a+ DCs generated could be identified on the basis of DC-specific intracellular adhesion molecule-grabbing nonintegrin (DC-SIGN) expression, a novel C-type lectin receptor expressed on dermal DCs but not on Langerhans cells.
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13 |
15342937
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In addition, the inclusion of IL-3 to the culture medium induced the appearance of CD13- cells that differentiated into plasmacytoid DC (DC2) on the addition of TNF-alpha, allowing the identification of developmental stages of DC2.
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14 |
16781694
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Induction of CD8+ T cell responses through targeting of antigen to Dectin-2.
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15 |
16781694
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We investigated whether the efficacy with which immune responses are induced can be improved by targeting Ags to a C-type lectin receptor, Dectin-2.
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16 |
16781694
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Ag conjugated to anti-Dectin-2 mAbs was presented efficiently to CD8+ T cells in vivo and elicited CD8+ T cell responses at low doses where free Ag failed to induce a response.
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17 |
17073943
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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).
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18 |
17073943
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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.
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19 |
17073943
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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).
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20 |
17983270
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Gp120 from the HIV-1 strain JR-FL induced IL-10 expression in MDDCs from 62% of donors, via a mannose C-type lectin receptor(s) (MCLR).
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21 |
17983270
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The mannose-binding protein cyanovirin-N, the 2G12 mAb to a mannose-dependent gp120 epitope, and MCLR-specific mAbs inhibited IL-10 expression, as did enzymatic removal of gp120 mannose moieties, whereas inhibitors of signaling via CD4, CCR5, or CXCR4 were ineffective.
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22 |
17983270
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Gp120-stimulated IL-10 production correlated with DC-SIGN expression on the cells, and involved the ERK signaling pathway.
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23 |
19139169
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APC activation by TDB and TDM was independent of the C-type lectin receptor Dectin-1, but required the immunoreceptor tyrosine-based activation motif-bearing adaptor protein Fc receptor gamma chain (FcRgamma).
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24 |
19648930
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CD4(+) and CD8(+) T cells and a mixed population of plasmacytoid and myeloid dendritic cells (DCs), including cells expressing the C-type lectin receptor DC-SIGN, persisted at sites of HSV-2 reactivation for months after healing, even with daily antiviral therapy.
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25 |
19648930
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The CD4(+) T cells that persisted reacted to HSV-2 antigen, were enriched for expression of the chemokine receptor CCR5, and were contiguous to DCs expressing the interleukin-3 receptor CD123 or DC-SIGN.
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26 |
20156497
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The nano- (NPs) and microparticles (MPs), with diameters of approximately 200nm and 2microm, consist of a PLGA core coated with a polyethylene glycol-lipid layer carrying the humanized targeting antibody hD1, which does not interact with complement or Fc receptors and recognizes the human C-type lectin receptor DC-SIGN on DCs.
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27 |
20164423
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The FcRgamma-associated C-type lectin receptor Mincle was expressed in macrophages and upregulated by TDM and TDB.
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28 |
20164423
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Macrophages lacking Mincle or FcRgamma were impaired in the inflammatory response to Mycobacterium bovis bacillus Calmette-Guérin.
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29 |
21628848
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Evidence from a variety of investigations, including epidemiologic studies on sexual transmission, in vivo studies in rhesus monkey, and ex vivo studies using human explant models, indicate that CD4/CCR5-mediated de novo infection of Langerhans cells (LCs) is a major pathway involved in sexual transmission of HIV (LCs primary gate keeper model).
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30 |
21628848
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However, it has been recently revealed that Langerin (a C-type lectin receptor) expressed on LC inactivate HIV.
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31 |
21882825
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Coculture of functionalized nanoparticles with bone marrow-derived DCs significantly increased cell surface expression of MHC II, the T cell costimulatory molecules CD86 and CD40, the C-type lectin receptor CIRE and the mannose receptor CD206 over the nonfunctionalized nanoparticles.
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32 |
21882825
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Blocking the mannose and CIRE receptors prior to the addition of functionalized nanoparticles to the culture inhibited the increased surface expression of MHC II, CD40 and CD86.
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33 |
22645128
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However, as expected, they do not react with glycan-dependent antibodies 2G12 and PGT123, or the C-type lectin receptor DC-SIGN.
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34 |
22653683
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DC-SIGN is a C-type lectin receptor that facilitates DC-specific delivery of Ag.
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35 |
22796161
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We modified MPs by surface immobilizing DC receptor targeting molecules - antibodies (anti-CD11c, anti-DEC-205) or peptides (P-D2, RGD), where anti-CD11c antibody, P-D2 and RGD peptides target integrins and anti-DEC-205 antibody targets the c-type lectin receptor DEC-205.
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36 |
23200858
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Our studies using FLARE conidia reveal stepwise and cell-type-specific requirements for CARD9 and Syk, transducers of C-type lectin receptor and integrin signals, in neutrophil recruitment, conidial uptake, and conidial killing in the lung.
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37 |
23630357
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Cord factor and peptidoglycan recapitulate the Th17-promoting adjuvant activity of mycobacteria through mincle/CARD9 signaling and the inflammasome.
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38 |
23630357
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We found that IL-17 secretion by CD4(+) T cells following CFA immunization requires MyD88 and IL-1β/IL-1R signaling.
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39 |
23630357
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Through measurement of Ag-specific responses after adoptive transfer of OTII cells, we confirmed that MyD88-dependent signaling controls Th17 differentiation rather than simply production of IL-17.
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40 |
23630357
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Additional experiments showed that CFA-induced Th17 differentiation involves IL-1β processing by the inflammasome, as mice lacking caspase-1, ASC, or NLRP3 exhibit partially defective responses after immunization.
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41 |
23630357
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By assaying Il1b transcripts in the injection site skin of CFA-immunized mice, we found that signaling through the adaptor molecule caspase activation and recruitment domain 9 (CARD9) plays a major role in triggering pro-IL-1β expression.
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42 |
23630357
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Moreover, we demonstrated that recognition of the mycobacterial glycolipid trehalose dimycolate (cord factor) by the C-type lectin receptor mincle partially explains this CARD9 requirement.
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43 |
23630357
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Importantly, purified peptidoglycan and cord factor administered in mineral oil synergized to recapitulate the Th17-promoting activity of CFA, and, as expected, this response was diminished in caspase-1- and CARD9-deficient mice.
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44 |
23784881
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DC-SIGN (DC-specific-ICAM3-grabbing-nonintegrin/CD209) is a C-type lectin receptor with potent endocytic capacity and a highly restricted expression on human immature DCs.
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45 |
23874461
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We have previously shown that the dendritic cell immunoreceptor (DCIR), a C-type lectin receptor expressed on dendritic cells (DCs), acts as an attachment factor for HIV-1 to DCs and contributes to HIV-1 transmission to CD4(+) T lymphocytes (CD4TL).
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46 |
24473338
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Adjuvants targeting the C-Type lectin receptor DC-SIGN may be alternative or complementary to adjuvants based on TRL activation.
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47 |
24533147
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We have previously reported that two C-type lectin receptors, Mincle (macrophage inducible C-type lectin, also called Clec4e) and MCL (macrophage C-type lectin, also called Clec4d), recognize the mycobacterial cord factor, trehalose-6,6'-dimycolate (TDM).
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48 |
24533147
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Here, we characterized the function of the guinea pig homologue of Mincle (gpMincle) and MCL (gpMCL). gpMincle directly bound to TDM and transduced an activating signal through ITAM-bearing adaptor molecule, FcRγ.
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49 |
24533147
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We have previously reported that two C-type lectin receptors, Mincle (macrophage inducible C-type lectin, also called Clec4e) and MCL (macrophage C-type lectin, also called Clec4d), recognize the mycobacterial cord factor, trehalose-6,6'-dimycolate (TDM).
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50 |
24533147
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Here, we characterized the function of the guinea pig homologue of Mincle (gpMincle) and MCL (gpMCL). gpMincle directly bound to TDM and transduced an activating signal through ITAM-bearing adaptor molecule, FcRγ.
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51 |
25068703
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Targeting nanoparticles to CD40, DEC-205 or CD11c molecules on dendritic cells for efficient CD8(+) T cell response: a comparative study.
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52 |
25068703
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These cell-surface molecules, including CD40, a TNF-α family receptor, DEC-205, a C-type lectin receptor and CD11c, an integrin receptor, were targeted by means of specific monoclonal antibodies (mAbs) coupled to the NP.
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53 |
25068703
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We observed a small but significantly improved internalization of CD40-targeted NP compared to DEC-205 or CD11c targeted NP.
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54 |
25068703
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Moreover, subcutaneous vaccination with CD40, DEC-205 and CD11c-targeted NP consistently showed higher efficacy than non-targeted NP in stimulating CD8+ T cell responses.
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55 |
25202022
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C-type lectin receptor dectin-3 mediates trehalose 6,6'-dimycolate (TDM)-induced Mincle expression through CARD9/Bcl10/MALT1-dependent nuclear factor (NF)-κB activation.
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56 |
25202022
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Previous studies indicate that both Dectin-3 (also called MCL or Clec4d) and Mincle (also called Clec4e), two C-type lectin receptors, can recognize trehalose 6,6'-dimycolate (TDM), a cell wall component from mycobacteria, and induce potent innate immune responses.
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57 |
25202022
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C-type lectin receptor dectin-3 mediates trehalose 6,6'-dimycolate (TDM)-induced Mincle expression through CARD9/Bcl10/MALT1-dependent nuclear factor (NF)-κB activation.
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58 |
25202022
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Previous studies indicate that both Dectin-3 (also called MCL or Clec4d) and Mincle (also called Clec4e), two C-type lectin receptors, can recognize trehalose 6,6'-dimycolate (TDM), a cell wall component from mycobacteria, and induce potent innate immune responses.
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59 |
25214033
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The asialoglycoprotein receptor (ASGPR) is a high-capacity C-type lectin receptor expressed on mammalian hepatocytes.
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60 |
25214033
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Proteoglycans (PGs), a core protein and glycosaminoglycans (GAGs) chain, play important roles in amyloid-beta protein as well as tau processing, and have potential significance in Alzheimer's disease (AD) therapy.
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61 |
25656175
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In this study, we compared the efficiency of glycan-based antigen targeting to both the human DC-specific C-type lectin receptor (CLR) DC-SIGN and the LC-specific CLR langerin.
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62 |
25656175
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Le(Y)-modified liposomes, with an approximate diameter of 200nm, were significantly endocytosed by DC-SIGN(+) DCs and mediated efficient antigen presentation to CD4(+) and CD8(+) T cells.
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63 |
25915733
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Tyrosine phosphatase SHP-2 mediates C-type lectin receptor-induced activation of the kinase Syk and anti-fungal TH17 responses.
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64 |
25915733
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Fungal infection stimulates the canonical C-type lectin receptor (CLR) signaling pathway via activation of the tyrosine kinase Syk.
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65 |
25915733
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Here we identify a crucial role for the tyrosine phosphatase SHP-2 in mediating CLR-induced activation of Syk.
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66 |
25915733
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Mechanistically, SHP-2 operated as a scaffold, facilitating the recruitment of Syk to the CLR dectin-1 or the adaptor FcRγ, through its N-SH2 domain and a previously unrecognized carboxy-terminal immunoreceptor tyrosine-based activation motif (ITAM).
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67 |
25915733
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We found that DC-derived SHP-2 was crucial for the induction of interleukin 1β (IL-1β), IL-6 and IL-23 and anti-fungal responses of the TH17 subset of helper T cells in controlling infection with Candida albicans.
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68 |
25915733
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Together our data reveal a mechanism by which SHP-2 mediates the activation of Syk in response to fungal infection.
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69 |
25915733
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Tyrosine phosphatase SHP-2 mediates C-type lectin receptor-induced activation of the kinase Syk and anti-fungal TH17 responses.
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70 |
25915733
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Fungal infection stimulates the canonical C-type lectin receptor (CLR) signaling pathway via activation of the tyrosine kinase Syk.
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71 |
25915733
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Here we identify a crucial role for the tyrosine phosphatase SHP-2 in mediating CLR-induced activation of Syk.
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72 |
25915733
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Mechanistically, SHP-2 operated as a scaffold, facilitating the recruitment of Syk to the CLR dectin-1 or the adaptor FcRγ, through its N-SH2 domain and a previously unrecognized carboxy-terminal immunoreceptor tyrosine-based activation motif (ITAM).
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73 |
25915733
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We found that DC-derived SHP-2 was crucial for the induction of interleukin 1β (IL-1β), IL-6 and IL-23 and anti-fungal responses of the TH17 subset of helper T cells in controlling infection with Candida albicans.
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74 |
25915733
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Together our data reveal a mechanism by which SHP-2 mediates the activation of Syk in response to fungal infection.
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75 |
26151293
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We have generated liposomes containing the glycan Lewis(Le)(X) which is highly specific for the C-type lectin receptor DC-SIGN expressed by DC.
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76 |
26151293
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Taken together, our data demonstrates that specific targeting of a gp100 tumour antigen and the adjuvant MPLA to DC-SIGN-expressing DC enhances the uptake of peptide-containing liposomes, the activation of DC, and induces tumour antigen-specific CD8(+) T cell responses.
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77 |
26151293
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These data demonstrate that adjuvant-containing glycoliposome-based vaccines targeting DC-SIGN(+) DC represent a powerful new approach for CD8(+) T cell activation.
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