Abstract:
:The class II transactivator (CIITA) has been referred to as the "master control factor" for the expression of MHC class II (MHCII) genes. As our knowledge on the specificity and function of CIITA grows, it is becoming increasingly evident that this sobriquet is entirely justified. First, despite extensive investigations, the major target genes of CIITA remain those implicated in the presentation of antigenic peptides by MHCII molecules. Although other putative target genes have been reported, the contribution of CIITA to their expression remains indirect, controversial or comparatively minor relative to its decisive role as a regulator of MHCII and related genes. Second, the most important parameter dictating MHCII expression is by far the expression pattern of the gene encoding CIITA (MHC2TA). The vast majority of signals that activate or repress MHCII expression under physiological and pathological situations converge on one or more of the three alternative promoters that drive transcription of the MHC2TA gene. In short, with respect to its specificity and its exquisitely controlled pattern of expression, CIITA is by a long stretch the single most important transcription factor for the regulation of genes required for MHCII-restricted antigen-presentation.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
LeibundGut-Landmann S,Waldburger JM,Krawczyk M,Otten LA,Suter T,Fontana A,Acha-Orbea H,Reith Wdoi
10.1002/eji.200424964keywords:
subject
Has Abstractpub_date
2004-06-01 00:00:00pages
1513-25issue
6eissn
0014-2980issn
1521-4141journal_volume
34pub_type
杂志文章,评审abstract::We have analyzed the inducibility of protein kinase C (PKC)-dependent expression of CD 69 molecules in T cell receptor (TCR) transgenic thymocytes developing in the presence or absence of selecting, class I major histocompatibility complex (MHC) molecules. Small CD4+8+ thymocytes developing in the absence of selecting...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830230326
更新日期:1993-03-01 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::The phosphodiesterase inhibitor oxpentifylline (OXP) has a number of potentially important immunomodulatory actions which include a selective inhibition of the Th1 subset of CD4+ cells in vitro and inhibition of tumor necrosis factor (TNF)-alpha mRNA transcription. In vivo, it has a dramatic protective effect against ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830251029
更新日期:1995-10-01 00:00:00
abstract::An approach to the preparation of antigen-specific human monoclonal antibodies focuses on mice transgenic for human immunoglobulin gene miniloci; the V gene segments in these miniloci undergo productive rearrangement to yield mouse B cells expressing human immunoglobulin (Ig) chains. The general usefulness of this str...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830241116
更新日期:1994-11-01 00:00:00
abstract::A reverse hemolytic plaque assay has been developed which specifically detects secretion of human immune interferon (Hu IFN-gamma) at the single cell level. Unstimulated peripheral blood lymphocytes from healthy adult volunteers spontaneously secreted IFN-gamma. Stimulation of these cells with concanavalin A, phytohem...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830130308
更新日期:1983-03-01 00:00:00
abstract::The invariant chain (Ii) is a chaperone that regulates assembly and transport of class II MHC molecules. In the absence of the lysosomal protease cathepsin S (CatS), degradation of Ii is impaired and an Ii remnant that extends from the N terminus to about residue 110 accumulates in class II MHC-positive endosomal comp...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200526323
更新日期:2005-09-01 00:00:00
abstract::Anti-CD3 mAb can modulate graft rejection and attenuate autoimmune diseases but their mechanism(s) of action remain unclear. CD8(+) T cells with regulatory function are induced in vitro by Teplizumab, a humanized anti-CD3 antibody and inhibit responses of autologous and allogeneic T cells. They inhibit CD4(+) T-cell p...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201040485
更新日期:2010-10-01 00:00:00
abstract::Spleen cells from chickens injected with sheep erythrocytes (SE) intravenously 2 to 14 days prior to culture were found to give faster and higher plaque-forming cell responses upon addition of antigen on day 2 rather than on day 0 of culture. Cell mixture experiments showed that this was due to the induction of suppre...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830100309
更新日期:1980-03-01 00:00:00
abstract::The antigen receptor of the T lymphocytes is one of the most complex eukaryotic membrane structures studied to date. The T cell receptor (TcR) consists of two disulfide-linked glycoprotein chains (alpha/beta or gamma/delta) and is noncovalently associated with a group of small and invariable CD 3 proteins. Four CD 3 c...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830180508
更新日期:1988-05-01 00:00:00
abstract::Lipid antigens are presented to T cells by the non-polymorphic MHC class I-related CD1 molecules. Microsomal triglyceride transfer protein (MTP) is an endoplasmic reticulum (ER)-resident chaperone that has been shown to lipidate the group 2 CD1 molecule CD1d and thus to regulate its function. We now report that MTP al...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200738102
更新日期:2008-08-01 00:00:00
abstract::Polyclonal differentiation of unprimed B cells into IgM-producing cells induced by lipopolysaccharide (LPS) or T cell-derived lymphokine B151-TRF2 has been shown to contain a process of I-A-restricted B-B cell interaction, so that the B cell responses are inhibited by monoclonal antibodies (mAb) specific for I-A molec...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830191208
更新日期:1989-12-01 00:00:00
abstract::Recently, it has been shown that cloned L1/1 T helper cells of type 2 (TH2-cells), when stimulated with antigen, are able to induce polyclonal B cell proliferation. Here we present evidence that this process is dependent on direct cell-cell interaction between T and B cells, which in the effector phase, i.e., during s...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830190113
更新日期:1989-01-01 00:00:00
abstract::Mutations in PTEN-induced kinase 1 (PINK1), a serine/threonine kinase linked to familial early-onset Parkinsonism, compromise mitochondrial integrity and metabolism and impair AKT signaling. As the activation of a naïve T cell requires an AKT-dependent reorganization of a cell's metabolic machinery, we sought to deter...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201343571
更新日期:2013-12-01 00:00:00
abstract::T-cell death is a fundamental process that is intricately regulated at multiple phases during T-cell differentiation, tolerance induction and the decline of the immune response. Caspase 3 is a crucial molecule regulating both mitochondrial and death receptor apoptotic pathways and therefore we were interested in exami...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201040475
更新日期:2010-12-01 00:00:00
abstract::Wiskott-Aldrich syndrome (WAS) is an X-linked disorder characterized by congenital thrombocytopenia and progressive deterioration of the immune function. Dendritic cells (DC) are key effectors in the induction of specific immunity and are highly specialized in antigen uptake and subsequent migration to draining lymph ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200112)31:12<3413::aid-immu3413>
更新日期:2001-12-01 00:00:00
abstract::Anti-immunoglobulin antibodies (anti-Ig) provoke the rapid breakdown of phosphatidylinositol bisphosphate (PIP2), elevation of cytoplasmic Ca2+ levels ([Ca2+]i) and activation of protein kinase C (PKC) in B lymphocytes. Tumor-promoting phorbol esters, like phorbol myristate acetate, also activate PKC, but inhibit anti...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830170119
更新日期:1987-01-01 00:00:00
abstract::Human invariant natural killer T (NKT) cell TCRs bind to CD1d via an "invariant" Vα24-Jα18 chain (iNKTα) paired to semi-invariant Vβ11 chains (iNKTβ). Single-amino acid variations at position 93 (p93) of iNKTα, immediately upstream of the "invariant" CDR3α region, have been reported in a substantial proportion of huma...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201141956
更新日期:2012-01-01 00:00:00
abstract::This study describes a CD5+ B cell that differs from the majority of the CD5+ B cells from human tonsils. This cell, isolated from in vivo activated B cells, expressed activation markers and featured a CD23-, IgMhigh, IgDlow surface phenotype, responded to T cell-independent type-2 antigens in vitro, and was detected ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200636887
更新日期:2007-08-01 00:00:00
abstract::To determine whether antigen (Ag)-specific cytotoxic T lymphocytes are generated during experimental Candida albicans infection, purified L3T4+ and Ly-2+ lymphocytes from immunized mice were cultured in the presence of syngeneic accessory cells, C. albicans Ag, and interleukin 2. Yeast-infected bone marrow macrophages...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830210636
更新日期:1991-06-01 00:00:00
abstract::The cytotoxic response of cell sorter-purified small Lyt-2+ splenic cytotoxic lymphocyte precursors from 10 individual C57BL/6 mice to mutant class I H-2Kbm1 or H-2Dbm14 allodeterminants was analyzed under limiting dilution conditions. The cytotoxic activity of anti-bm1-specific or anti-bm14-specific cytotoxic T lymph...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830161220
更新日期:1986-12-01 00:00:00
abstract::Natural killer (NK) cell activity can be stimulated by different surface receptors. 2B4 is a member of the signaling lymphocyte activation molecule (SLAM)-related receptor family and is important for stimulating human NK cell cytotoxicity and cytokine production. Here we show that stimulation of human NK cells by anti...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200636146
更新日期:2006-12-01 00:00:00
abstract::Human T cell clones (TCC) are antigen-presenting cells (APC) able to present peptides and superantigens (SAg) and to process and present intact proteins. TCC express major histocompatibility complex (MHC) class II antigens and molecules involved in the accessory signal delivery, such as B7.1 and B7.2/B70. Notwithstand...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830260411
更新日期:1996-04-01 00:00:00
abstract::Site-directed mutagenesis of a recombinant Fc hinge fragment has recently been used to localize the site of the mouse IgG1 (mIgG1) molecule that is involved in the intestinal transfer of recombinant Fc hinge fragments in neonatal mice. This site encompasses Ile-253, His-310, Gln-311, His-433 and Asn-434, localized at ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830261038
更新日期:1996-10-01 00:00:00
abstract::The BCR plays a central role in B cell development, survival, activation, and differentiation. We have identified the B cell novel protein 1 (BCNP1) as a new regulator of BCR signaling. BCNP1 contains a pleckstrin homology domain, three proline-rich motifs, and a potential SH2 binding site, and is predominantly expres...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201847985
更新日期:2019-06-01 00:00:00
abstract::The recent discovery of IL-17-producing CD4(+) Th subset significantly revised the Th1/Th2 dichotomy model proposed by Mosmann and Coffman almost two decades ago. Th17 cells are involved in the pathogenesis of many human autoimmune diseases. Th17 cells, their developmental pathways and their effector functions, theref...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200839105
更新日期:2009-03-01 00:00:00
abstract::Leishmania-induced macrophage (Mphi) dysfunctions have been correlated with altered signaling events. Recent findings from our laboratory suggest that modulation of host protein tyrosine phosphatase (PTP) following Leishmania infection could lead to these Mphi defects. To address this issue, Mphi PTP activity and IFN-...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199911)29:11<3737::AID-IMM
更新日期:1999-11-01 00:00:00
abstract::Evidence is presented that the phenotype of the rat T helper cells is stable after priming and boosting with a hapten-carrier conjugate and that the phenotype is W3/25+, MRC OX-22-, MRC OX-8-. Data are also presented that demonstrate the presence of doubly marked, W3/25+, MRC OX-8+, cells in the spleens of rats primed...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830130916
更新日期:1983-09-01 00:00:00
abstract::The simultaneous detection of Ig and theta on the surface of mouse lymphocytes permits the detection of four cell types (Ig-theta-, Ig-theta+, Ig+theta-, and Ig+theta+) which also have distinct electrophoretic profiles. All types are present in variable proportions in all lymphoid organs studied. Results obtained in c...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830050211
更新日期:1975-02-01 00:00:00
abstract::The killer cell lectin-like receptor G1 (KLRG1) is an inhibitory receptor expressed by memory T cells and NK cells in man and mice. It is frequently used as a cell differentiation marker and members of the cadherin family are ligands for KLRG1. The present study provides new insights into the interaction of mouse KLRG...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200838690
更新日期:2008-12-01 00:00:00
abstract::To understand further the roles that negative regulatory signals may play in B cell immune responses, we compared three inhibitors of B cell proliferation: cross-linking CD19 with monoclonal antibody (mAb), signaling through Fc receptors by intact anti-mu mAb, and transforming growth factor-beta (TGF-beta). Each agent...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830200516
更新日期:1990-05-01 00:00:00