Abstract:
:To study the control of immunoglobulin kappa light chain gene rearrangement, we generated transgenic mice carrying a germ-line human kappa minilocus (HK) containing the J kappa-proximal V gene, V kappa IV, the V-J intergenic region, the five J kappa segments and the C kappa gene. This construct includes the intronic, but not the 3' kappa enhancer. Rearrangement of the HK transgene was found to be lymphoid specific and restricted to the B cell lineage. Quantification of kappa gene rearrangement in pre-B cell lines established from HK transgenic mice showed that, like endogenous kappa genes, rearrangement of the transgene is repressed in mu-negative early B cell precursors. These results indicate that rearrangement of the HK transgene is subjected to the same B/T cell and developmental regulation as V kappa-J kappa rearrangement at the endogenous locus. Comparison with an unrearranged kappa transgenic construct lacking the V-J intergenic region, suggests that this region, or elements associated with the proximal V gene, may act to restrict kappa gene rearrangement to the B cell lineage.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Cavelier P,Nato F,Coquilleau I,Rolink A,Rougeon F,Goodhardt Msubject
Has Abstractpub_date
1997-07-01 00:00:00pages
1626-31issue
7eissn
0014-2980issn
1521-4141journal_volume
27pub_type
杂志文章abstract::Viruses encode immune evasion mechanisms to survive in the immunocompetent host. Chemokines mediate the migration of immune cells and their critical role in immunity is emphasized by the numerous virus-encoded strategies to modulate their activity. Evidence published in this issue of the European Journal of Immunology...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200737215
更新日期:2007-04-01 00:00:00
abstract::The glycosylphosphatidylinositol (GPI)-anchored CD59 protein (human protectin) protects cells against complement-induced lysis, binds to CD2 and also transduces activation signals within T cells. We have further examined the biochemical signals transduced by CD59 and addressed its role in regard to the CD3-mediated si...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830250704
更新日期:1995-07-01 00:00:00
abstract::Hypersensitivity to nickel (Ni) represents the most common manifestation of contact allergy in humans. The role of metal-specific T cells in this disease is well established, but the molecular interactions involved in their activation are poorly understood. We examined the T cell receptor (TCR) repertoire in T cells a...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830270808
更新日期:1997-08-01 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::B cells isolated from germinal centers (GC) of immune mice 2-5 days after antigen (Ag) challenge migrate in response to chemotactic signals, whereas GC B cells isolated at other times and resting B cells do not. Since B cells are in direct contact with follicular dendritic cells (FDC) in GC we reasoned that FDC might ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830250437
更新日期:1995-04-01 00:00:00
abstract::NK cells play important roles in immune surveillance against malignancy and virus-infected cells. NK cell functions are affected in patients infected with HIV-1; however, whether there is direct interaction between NK cells and HIV-1 remains controversial. In this study the expression of CD4, an important receptor for...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200737217
更新日期:2007-08-01 00:00:00
abstract::Cyclosporin A (CsA), an immunosuppressive drug which completely suppresses the humoral response to thymus-dependent antigens, does not affect the generation of T helper (Th) cells during an in vitro stimulation of murine spleen cells with sheep red blood cells. The appearance of Th cells depends on time and their deve...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830210304
更新日期:1991-03-01 00:00:00
abstract::Paxillin is an adaptor protein associated with focal adhesion complex, and is activated by tyrosine phosphorylation through focal adhesion kinase (FAK) and Src kinase. Recent studies reveal that serine phosphorylation of paxillin by JNK and p38 MAPK is essential for cell migration or neurite extension, but their cellu...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201142192
更新日期:2012-08-01 00:00:00
abstract::Several drugs targeting members of the TNF superfamily or TNF receptor superfamily (TNFRSF) are widely used in medicine or are currently being tested in therapeutic trials. However, their mechanism of action remains poorly understood. Here, we explored the effects of TNFRSF co-stimulation on murine Foxp3+ regulatory T...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201948393
更新日期:2020-07-01 00:00:00
abstract::CD4+CD25(hi)CD127(lo/-) regulatory T cells (Treg) have been implicated in the resolution of asthma-associated inflammation while the opposite role of CD4+ invariant NKT (iNKT) cells has been the subject of recent investigations. Studies here focused on mechanisms of interaction between CD4+ iNKT cells and Treg to furt...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200738082
更新日期:2008-07-01 00:00:00
abstract::The F1 progeny of autoimmune NZB and normal SWR mice uniformly develop severe and accelerated lupus nephritis. The (SWR x NZB)F1 mice produce an oligoclonally expanded population of nephritogenic anti-DNA autoantibodies that share a recurrent cross-reactive idiotype (Id564), use highly homologous VH genes and surprisi...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830220302
更新日期:1992-03-01 00:00:00
abstract::Infection with parasitic worms (helminths) alters host immune responses and can inhibit pathogenic inflammation. Helminth infection promotes a strong Th2 and T regulatory response while suppressing Th1 and Th17 function. Th2 responses are largely dependent on transcriptional programs directed by Stat6-signaling. We ex...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201848072
更新日期:2020-10-16 00:00:00
abstract::We evaluated the role of regulatory T cells (CD4(+) CD25(+) Foxp3(+) cells, Tregs) in human Mycobacterium tuberculosis infection. Tregs were expanded in response to M. tuberculosis in healthy tuberculin reactors, but not in tuberculin-negative individuals. The M. tuberculosis mannose-capped lipoarabinomannan (ManLAM) ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200737268
更新日期:2008-02-01 00:00:00
abstract::Alpha4-mediated signaling is involved in a variety of functions in mammalian cells. To determine whether this is true for immunocompetent cells, we generated mutant (Lck-alpha4-) mice in which the alpha4 gene was deleted in a T cell-specific manner using the Cre/loxP system. These mice showed impaired early T cell dev...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200323720
更新日期:2003-07-01 00:00:00
abstract::Dendritic cells (DC) are the main orchestrators of specific immune responses. Depending on microbial information they encounter in peripheral tissues, they promote the development of Th1, Th2 or unpolarized Th cell responses. In this study we have investigated the immunomodulatory effect of non-pathogenic intestinal G...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200324815
更新日期:2004-05-01 00:00:00
abstract::Twenty-seven B cell hybridomas derived from spleen cells of nonimmunized, 6-day-old BALB/c mice and previously characterized serologically were screened for VH-gene expression: hybridomas expressing the two most D-proximal VH-gene families, 7183 and QUPC 52 were over-represented in this sample. Strikingly, clones sero...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830170315
更新日期:1987-03-01 00:00:00
abstract::The influence of muramyl dipeptide (N-acetylmuramyl-L-alanyl-D-isoglutamine) on the rejection of mouse skin allografts was investigated. While the 0.1-mg dose administered on days 7, 6, 5 prior to transplantation caused significant prolongation of the graft survival, the 0.5-mg dose administered on days 3, 2, 1 prior ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830131015
更新日期:1983-10-01 00:00:00
abstract::Activation of invariant natural killer T (iNKT) cells by treatment with their α-galactosyl ceramide ligand provides therapeutic benefits in several immune inflammatory settings. Given the artificial nature of this stimulation, the natural regulatory functions of iNKT remain uncertain. Addressing this issue in a mouse ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201040647
更新日期:2011-02-01 00:00:00
abstract::To delineate the extent of O-galactosyltransferase deficiency within the lymphoid lineage, monoclonal antibody specific for the Thomsen-Friedenreich (TF) antigen (Gal beta 1----3GalNAc alpha 1-O-Ser/Thr) and its precursor the Tn antigen (GalNAc alpha 1-O-Ser/Thr) were applied to the flow cytometric analysis of periphe...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830220724
更新日期:1992-07-01 00:00:00
abstract::Precursor CD4-CD8- (DN) thymocytes rearrange their TCR-beta genes, and only those which succeed in beta-selection subsequently expand and differentiate into immature CD4+CD8+ (DP) thymocytes. The cell subsets corresponding to the successive steps of this transition can be defined in terms of CD44 and CD25 expression. ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(2001010)31:10<3038::aid-immu3038
更新日期:2001-10-01 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::We have developed a long-term culture system using the murine bone marrow stromal cells MS-5 to support the growth of progenitor B cells with CD34-, CD10+, CD19+, and cytoplasmic mu chain (C mu)-negative surface phenotype from human CD34+ cells purified from umbilical cord blood (CB). When 10(3) CD34+ cells/well were ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199803)28:03<855::AID-IMMU
更新日期:1998-03-01 00:00:00
abstract::Analysis of mice transgenic for immunoglobulin genes should allow definition of the cis-acting DNA sequences required to target somatic mutation to antibody V genes. We have looked for mutations in a chimeric kappa transgene encoding a V region specific for the hapten 2-phenyloxazolone (phOx) linked to a rat C kappa g...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830200625
更新日期:1990-06-01 00:00:00
abstract::Tetanus toxin has been a valuable model antigen to study the MHC class II-restricted antigen processing pathway and is also frequently used to provide T helper determinants in vaccine formulations. To date most basic studies on the processing of this antigen have utilized human T and B cell clones. As a first step tow...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200202)32:2<530::AID-IMMU530>3.0
更新日期:2002-02-01 00:00:00
abstract::Cells from the monoclonal B cell lymphoma I.29 expressing surface IgM (mu +) are capable of differentiating in vitro to IgM secretion and of switching to IgA or IgE production in response to lipopolysaccharide (LPS) stimulation. To determine whether a single mu + B cell is capable of undertaking both differentiative p...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830170419
更新日期:1987-04-01 00:00:00
abstract::The spleen is anatomically and functionally divided into two compartments: the red pulp, where particles are effectively removed from the blood, and the white pulp, where specific immune responses are generated. Here the isolation of white pulp from red pulp is described, allowing a detailed analysis of the cellular c...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200002)30:2<626::AID-IMMU626>3.0
更新日期:2000-02-01 00:00:00
abstract::To detect possible differences in immunogenicity between tumors induced in T cell-deficient mice and phenotypically normal congenic mice, 16 sarcomas, 8 having developed in nude BALB/c mice and 8 having developed in congenic normal (nu/+) mice, were transplanted to normal BALB/c recipients and the rates of rejection o...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830260827
更新日期:1996-08-01 00:00:00
abstract::Human T cells expressing Vgamma9Ndelta2-encoded TCR recognize several nonpeptide phosphoantigens in the absence of major histocompatibility complex restriction. As these cells respond differentially to increasing concentrations of structurally related phosphoantigens, such ligands constitute agonists of different stre...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200105)31:5<1628::AID-IMMU1628>3
更新日期:2001-05-01 00:00:00
abstract::A 2-kDa synthetic derivative of the macrophage-activating lipopeptide (MALP-2) from Mycoplasma fermentans is a potent inducer of monocytes/macrophages and improves the immunogenicity of antigens co-administered by systemic and mucosal routes. Dendritic cells (DC) are the most potent antigen-presenting cells, which are...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200324511
更新日期:2004-03-01 00:00:00
abstract::About one hundred immunologists recently met in Capo Caccia, Sardinia, for the first of three events that will comprise the EMBO Conference Series, organised by the ENII, on Molecular and Cellular Mechanisms of Immune Regulation. The 2007 Conference focused on how immunity is shaped in healthy and diseased tissues. ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200790031
更新日期:2007-08-01 00:00:00