Abstract:
:Chemokine receptor CXCR6 mediates the chemotaxis and adhesion of leukocytes to soluble and membrane-anchored forms of CXCL16, and is an HIV-1 co-receptor. Here, we describe the effects of mutation of acidic extracellular CXCR6 residues on receptor function. Although most CXCR6 mutants examined were expressed at levels similar to wild-type (WT) CXCR6, an N-terminal E3Q mutant was poorly expressed, which may explain previously reported protective effects of a similar single nucleotide polymorphism, with respect to late-stage HIV-1 infection. In contrast to several other chemokine receptors, mutation of the CXCR6 N terminus and inhibition of post-translational modifications of this region were without effect on receptor function. Likewise, N-terminal extension of CXCL16 resulted in a protein with decent potency and efficacy in chemotaxis and not, as anticipated, a CXCR6 antagonist. D176N and E274Q CXCR6 mutants were unable to interact with soluble CXCL16, suggesting a critical role for D176 and E274 in ligand binding. Intriguingly, although unable to interact with soluble CXCL16, the E274Q mutant could promote robust adhesion to membrane-anchored CXCL16, suggesting that soluble and membrane-bound forms of CXCL16 possess distinct conformations. Collectively, our data suggest a novel paradigm for the CXCR6:CXCL16 interaction, a finding which may impact the discovery of small-molecule antagonists of CXCR6.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Petit SJ,Chayen NE,Pease JEdoi
10.1002/eji.200838269subject
Has Abstractpub_date
2008-08-01 00:00:00pages
2337-50issue
8eissn
0014-2980issn
1521-4141journal_volume
38pub_type
杂志文章abstract::By stimulating peripheral blood mononuclear cells of four healthy donors with a mixture of overlapping peptides representing the core domain of p53, we established two CD4+ alphabeta T cell clones and four lines that recognized wild-type and mutant p53 proteins as well as p53 self peptides in an HLA class II-restricte...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199801)28:01<305::AID-IMMU
更新日期:1998-01-01 00:00:00
abstract::The immunosuppressive drugs FK506 and rapamycin bind to a family of intracellular proteins termed FK506-binding proteins (FKBP). FK506 and rapamycin inhibit lymphocyte-activation pathways by forming complexes with an FKBP; subsequently, the drug/FKBP complexes interact with target molecules involved in signal transduc...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830250239
更新日期:1995-02-01 00:00:00
abstract::Radiolabeled protein A from Staphylococcus aureus (SpA) injected i.v. into mice and rabbits forms a soluble [(IgG)2-(SpA)1]2 complex (Mr = 684 000) which is identical in composition to that formed by SpA in vitro with an equivalent amount or an excess of IgG. A soluble rabbit IgG-SpA complex injected into a mice or ra...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830130802
更新日期:1983-08-01 00:00:00
abstract::In the present study, we sought evidence for a surface nucleosome receptor in the fibroblastic cell line CV-1, and questioned whether anti-double-stranded (ds) DNA and/or anti-histone autoantibodies could recognize and influence the fate of cell surface-bound nucleosomes. 125I-labeled mononucleosomes were shown to bin...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830260230
更新日期:1996-02-01 00:00:00
abstract::Previously we have reported on the production of two sets of human monoclonal antibodies reacting with mouse mammary tumor virus (MMTV) and human mammary tumor virus (HuMTV) cross-reacting antigens. B11 is a monoclonal IgG generated by the human-human hybridoma technique using axillary lymph node of breast cancer pati...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830181109
更新日期:1988-11-01 00:00:00
abstract::It is now recognized that Th17 cells constitute the third effector arm of Th cells, complementing the Th1 and Th2 lineages. Although secretion of IL-17 is a primary defining characteristic of Th17 cells, the expression profile of specific chemokine receptors, cell surface molecules and cytokines are also part of the T...
journal_title:European journal of immunology
pub_type: 评论,杂志文章
doi:10.1002/eji.200939540
更新日期:2009-06-01 00:00:00
abstract::Thapsigargin (TG), which inhibits endoplasmic reticulum-dependent Ca(2 +)-ATPase and thereby increases cytosolic Ca(2 +), has been reported to cause apoptosis in T lymphocytes another cell types. In this study, we investigated the molecular mechanisms that are involved in the apoptosis induced by TG in T cell hybridom...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200106)31:6<1757::aid-immu1757>3
更新日期:2001-06-01 00:00:00
abstract::IL-12 and IL-4, respectively, dominate Th1 versus Th2 polarization. Additionally IL-4 can inhibit IL-12 p40 production in DC. Here we show that macrophages respond to bacterial CpG-DNA with IL-12 p40 production in an IL-4-sensitive manner. Analysis of the molecular mechanism of this inhibition shows that IL-4 acts by ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/immu.200310017
更新日期:2003-02-01 00:00:00
abstract::Changes in the epigenetic landscape of immune cells are a crucial component of gene activation during the induction of inflammatory responses, therefore it has been hypothesized that epigenetic modulation could be employed to restore homeostasis in inflammatory scenarios. Fungal pathogens cause a large burden of morbi...
journal_title:European journal of immunology
pub_type: 杂志文章
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更新日期:2019-11-01 00:00:00
abstract::Stromal elements are major components of lymphoid tissues contributing to both tissue architecture and function. In this study we report on the phenotype and function of fibroblast-like stromal cells obtained from human spleen. These cells express high levels of CD44 and ICAM-1 and moderate levels of VLA-4, VCAM, CD40...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199812)28:12<3940::AID-IMM
更新日期:1998-12-01 00:00:00
abstract::Cytotoxic T lymphocytes (CTL) generally recognize peptides derived from endogenously expressed proteins in association with nascent major histocompatibility complex (MHC) class I molecules. In contrast, peptides derived from exogenous proteins associate with MHC class II following endocytosis to an endosomal compartme...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830240721
更新日期:1994-07-01 00:00:00
abstract::T cell stimulation of B cell proliferation during T-B collaboration requires membrane-bound stimulatory ligands, such as CD40 ligand and the secretion of soluble cytokines, such as IL-4. Nevertheless, it remains unclear whether T cell contact is required to provoke each consecutive B cell division, or whether B cells ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200104)31:4<1150::aid-immu1150>3
更新日期:2001-04-01 00:00:00
abstract::In this investigation we compare the repopulation of the CD8+ T cell compartments of bone marrow (BM) chimeras by either normal nontransgenic or T cell receptor (TcR) alpha beta-transgenic (TG) CD8+ T cells, the fate of TG and non-TG CD8+ T cells in different parabionts and the survival of TG and non-TG peripheral CD8...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830261115
更新日期:1996-11-01 00:00:00
abstract::The activation requirements for antigen-dependent proliferation of CD4+ T cells are well documented, while the events leading to the inactivation phase are poorly understood. Here, we tested the hypothesis that the lymphocyte-activation gene 3 (LAG-3), a second major histocompatibility complex (MHC) class II ligand, p...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830241246
更新日期:1994-12-01 00:00:00
abstract::Upon activation in vitro, only a fraction of the bulk human T helper cell cultures secret the hallmark Th1/2 cytokines (IFN-gamma for Th1 and IL-4 for Th2, respectively). It is uncertain whether these IFN-gamma-/IL-4- cells are differentiated Th1 or Th2 cells. Here, we have characterized live IFN-gamma+, IL-4+ and IFN...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200425957
更新日期:2005-09-01 00:00:00
abstract::Bispecific antibodies binding to the TCR/CD3 complex and to a tumor-associated surface molecule can be used to target cytotoxic T lymphocytes against tumor cells. We reasoned that high-affinity binding to CD3 may reduce the efficiency of T cell stimulation and target the bispecific reagent to T cells rather than to tu...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200211)32:11<3102::AID-IMMU3102>
更新日期:2002-11-01 00:00:00
abstract::Mouse thymus-leukemia antigen (TL), like other major histocompatibility complex (MHC) class I-b antigens, displays signs of a specialized function. It is normally expressed at high levels on immature thymocytes and at moderate levels on gut epithelium and activated mature T cells. A promoter/enhancer region unique amo...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830250421
更新日期:1995-04-01 00:00:00
abstract::Cyclosporin A (CSA), an immunosuppressive agent used in organ transplantation and to treat some autoimmune diseases, blocks the Ca2+-dependent steps involved in T cell receptor triggering leading to interleukin (IL)-2 production. Considering that the early steps of T cell activation are insensitive to CSA, we asked wh...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830260712
更新日期:1996-07-01 00:00:00
abstract::Innate immunity directs the adaptive immune response by identifying antigens that are associated with infectious agents. Although some microbial antigens can be recognized by innate immune receptors, most cannot, and these require identification by some other means. The introduction of aldehydes into antigens by glyco...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200010)30:10<2881::AID-IMMU2881>
更新日期:2000-10-01 00:00:00
abstract::Activated monocyte-macrophages have been implicated in tumor angiogenesis via their capacity to produce many potent angiogenic factors. However, the mechanisms leading to production of these angiogenic factors in macrophages remain to be elucidated. In this study, we demonstrated by use of a mouse Matrigel implantatio...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200424957
更新日期:2004-08-01 00:00:00
abstract::We have established IgG rheumatoid factor (RF)-secreting hybridoma cell lines from the synovial tissues of three patients from whom we have previously characterized several IgM RF. The IgG RF bind human and rabbit IgG and form intracellular complement-fixing complexes indicative of a self association process in vivo. ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830230604
更新日期:1993-06-01 00:00:00
abstract::Cellular metabolism is dynamically regulated in NK cells and strongly influences their responses. Metabolic dysfunction is linked to defective NK cell responses in diseases such as obesity and cancer. The transcription factors, sterol regulatory element binding protein (SREBP) and cMyc, are crucial for controlling NK ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.202048784
更新日期:2020-09-18 00:00:00
abstract::This study describes a general strategy to produce hybrid monoclonal antibodies that are capable of targeting human cytotoxic T lymphocytes (CTL) against any cell carrying the appropriate target antigen. This is done by fusing a HAT-sensitive, G418-resistant anti-T3 hybridoma with immune spleen cells (or with other hy...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830170118
更新日期:1987-01-01 00:00:00
abstract::Upon treatment with lipopolysaccharide (LPS), primary B cells proliferate and differentiate into plasma cells with concomitant up-regulation of immunoglobulin (Ig) gene expression. Here we examine the role of the Igkappa 3' enhancer in this process using a kappa3'-enhancer-driven beta-globin reporter gene in transgeni...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199903)29:03<872::AID-IMMU
更新日期:1999-03-01 00:00:00
abstract::Two out of five murine IgG3 anti-trinitrophenyl (TNP) monoclonal antibodies (mAb) obtained either by immunization with TNP-keyhole limpet hemocyanin (KLH) (CB1, CB5, CB6 and 4H10) or with dinitrophenyl-lipopolysaccharide (9A6), exhibited anti-IgG rheumatoid factor (RF) activity (CB6 and 4H10). The anti-IgG activity of...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830191123
更新日期:1989-11-01 00:00:00
abstract::T helper cell type 2 (Th2) cells when triggered by antibodies to CD3 acquire the capacity to stimulate the polyclonal proliferation of syngeneic, resting B cells. Here, we tested the ability of various monoclonal antibodies (mAb) to block the B cell proliferation-inducing potential of such activated Th2 cells. We demo...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830220246
更新日期:1992-02-01 00:00:00
abstract::The beta7 integrins alpha4beta7 and alphaEbeta7 play key roles in forming the gut-associated lymphoid tissue, and contribute to chronic inflammation. The alpha4beta7 integrin-mediated adhesion of activated lymphocytes is largely due to a transient increase in avidity from ligand-induced clustering of alpha4beta7 at th...
journal_title:European journal of immunology
pub_type: 杂志文章
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更新日期:2006-08-01 00:00:00
abstract::Continuous antigen stimulation of CD4(+)CD25(-) T cells leads to generation of adaptive CD4(+)CD25(+)FOXP3(+) regulatory T (T(R)) cells. Here, we show that highly suppressive adaptive CD8(+)CD25(+)FOXP3(+) T cells can be generated in the same manner by continuous antigen stimulation in the presence of CD14(+) monocyte...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200737529
更新日期:2008-03-01 00:00:00
abstract::C1q, a subcomponent of C1--the first component of complement, is synthesized by macrophages (M phi). Immunofluorescence and immunoperoxidase studies first indicated the presence of C1q on the surface of guinea pig (gp) and human peritoneal M phi (Loos, M., Storz, R., Müller, W. and Lemmel, E. M., Immunobiology 1981. 1...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830230918
更新日期:1993-09-01 00:00:00
abstract::The in vitro immune response of murine spleen cells to the T cell-independent antigen, 2,4-dinitrophenyl-beta-alanyl-glycyl-glycyl-N(2-aminoethyl)carbamyl-methylated Ficoll (DAGG-Ficoll), requires the presence of macrophages, or 24-hr culture supernates from peritoneal cells. Complete reconstitution of the response by...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830081105
更新日期:1978-11-01 00:00:00