Abstract:
:Co-culture of purified T and B cells obtained from cytochrome c-specific TCR- and hen egg lysozyme (HEL)-specific Ig-transgenic mice was used to examine the role of B cell receptor (BCR) ligation and TCR affinity on the efficiency of T-B cell collaboration. The results showed that BCR ligation of naive B cells with HEL was not required for effective presentation of high-affinity antigen to T cells, although it did enhance activation and division of both T and B cells. Anergic B cells were also effective at presentation of high-affinity antigen and proliferated more than naive B cells in response to T cell help, due to prior exposure to antigen in vivo. Despite the fact that induction of CD86 on anergic B cells following BCR ligation was suboptimal, these cells supported T cell activation and survival in culture as efficiently as naive B cells exposed to HEL. In contrast, when the low-affinity antigen mls-3a served as the T cell stimulus, BCR ligation was essential to elicit a detectable T cell response. Thus the in vitro model demonstrates that co-stimulation is not an absolute requirement for effective antigen presentation and delivery of T cell help to B cells. Rather, the cooperative effects of BCR ligation and TCR affinity determine the relative requirement for co-stimulation.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Cook MC,Basten A,Fazekas de St Groth Bdoi
10.1002/(SICI)1521-4141(199812)28:12<4037::AID-IMMsubject
Has Abstractpub_date
1998-12-01 00:00:00pages
4037-49issue
12eissn
0014-2980issn
1521-4141journal_volume
28pub_type
杂志文章abstract::A rapidly-growing, HAT-sensitive cell line LICR-LON-HMy2 has been derived from the ARH-77 human plasma cell leukemia-derived line. It lacks the enzyme hypoxanthine phosphoribosyltransferase (EC 2.4.2.8). Hybrids have been reproducibly made for more than a year and in independent laboratories with lymphocytes from tons...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830120804
更新日期:1982-08-01 00:00:00
abstract::The requirement for cell interactions in T cell activation has been studied with two continuously in vitro growing T cell clones. These clones are specific for minor histocompatibility antigens, are H-2K restricted, and one clone is functionally a cytolytic T lymphocyte. Both can proliferate when interleukin 2 is adde...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830141011
更新日期:1984-10-01 00:00:00
abstract::Animal models for HIV research have been indispensible in fulfilling Koch's postulate and in exploring issues of viral infectivity and pathogenesis, sequence divergence, route(s) of acquisition, tissue distribution and tropism, immunogenicity and protection capacity of vaccine candidates, escape from adaptive immunity...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200939576
更新日期:2009-08-01 00:00:00
abstract::Riboflavin, also known as vitamin B2 , is converted by riboflavin kinase (RFK) into flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD), which are essential cofactors of dehydrogenases, reductases, and oxidases including the phagocytic NADPH oxidase 2 (Nox2). Riboflavin deficiency is common in young adul...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201343940
更新日期:2014-03-01 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
abstract::CD27 is a lymphocyte-specific member of the TNF receptor (TNFR) family. It is a costimulatory molecule for peripheral T cells, as defined by its ability to enhance the TCR-induced proliferative response. We show here that CD27 augments TCR-induced Jun N-terminal kinase (JNK) activity in primary murine lymph node T cel...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199807)28:07<2208::AID-IMM
更新日期:1998-07-01 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::The mechanisms responsible for the down-modulation of the activation of separated CD4(+) or CD8(+) human T cell blasts were studied using cells obtained from healthy donors. In the presence of IL-2, human CD8(+) T cell blasts were more sensitive than CD4(+) T cell blasts to regulation by APO2 ligand/TNF-related apopto...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200526046
更新日期:2005-06-01 00:00:00
abstract::Beside diabetes, non-obese diabetic (NOD) mice develop sporadic lymphoid infiltration of the thyroid gland, mimicking Hashimoto's thyroiditis. We have examined the prevalence of those manifestations in NOD mice, the influence of the major histocompatibility complex (MHC) and the association with autoantibodies. The in...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830271117
更新日期:1997-11-01 00:00:00
abstract::Ligation of interleukin 2 (IL2) is known to regulate both protein tyrosine and serine/threonine phosphorylation. A family of leukocyte transmembrane proteins whose cytoplasmic domain exhibits intrinsic protein tyrosine phosphatase activity is collectively called CD45 and is identified by a set of common cell surface e...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830210438
更新日期:1991-04-01 00:00:00
abstract::The immune system is tightly regulated by a subset of T cells defined as regulatory T cells (Tregs). Tregs maintain immune homeostasis by restraining unwarranted immune cell activation and effector function. Here, we discuss an important but underappreciated role of proteases in controlling Treg function. Proteases re...
journal_title:European journal of immunology
pub_type: 杂志文章,评审
doi:10.1002/eji.201948270
更新日期:2020-06-01 00:00:00
abstract::A monoclonal antibody (mAb), 2D1(IgM), was identified for its anti-proliferative effect on human T leukemia cell line, SUP-T13. The cells bound with 2D1 showed DNA ladder patterns of oligonucleosomes, demonstrating apoptosis. Peripheral mononuclear cells activated by phytohemagglutinin or OKT3 induced expression of 2D...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830230831
更新日期:1993-08-01 00:00:00
abstract::Cure of leishmaniasis requires a type 1 immune response characterized by IFN-gamma production. Leishmania major infection leads to a type 2 response suppressing cure of susceptible BALB/c mice, and L. major causes an exacerbated type 2 response in mouse strains with a gene knockout (KO) such that they lack IL-12p40 (I...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200212)32:12<3556::AID-IMMU3556>
更新日期:2002-12-01 00:00:00
abstract::Mouse B cells cultured with either phorbol myristate acetate (PMA), or with Ca2+ ionophores enter a transitional activated state, between quiescence (G0) and G1, but do not synthesize DNA. It is shown here that the combination of PMA plus the ionophore ionomycin induces resting B cells to synthesize DNA, but not to se...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830160118
更新日期:1986-01-01 00:00:00
abstract::The potential of synthetic peptides as vaccines is restricted by their frequent lack of immunogenicity. As with haptens, coupling to a carrier protein is usually required to provide T cell help to anti-peptide antibody-producing B cells. In spite of their short length, a few natural or synthetic peptides are immunogen...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830170820
更新日期:1987-08-01 00:00:00
abstract::Tumor necrosis factor (TNF) is a cytokine which, among other properties, is a principle mediator of inflammation and septic shock. It acts upon target cells by binding to specific cell surface receptors. A10G10 is a murine monoclonal antibody which recognizes human TNF and neutralizes its activity. A rabbit polyclonal...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830221143
更新日期:1992-11-01 00:00:00
abstract::F1----parental bone marrow chimeras between CBA and B10 mice were used to show that even after 1 year follicular dendritic cells (FDC), also termed dendritic reticular cells, are not derived from bone marrow stem cells. However clusters of cells wrapped in the dendritic processes of FDC, isolated by enzyme digestion o...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830140916
更新日期:1984-09-01 00:00:00
abstract::MHC-peptide-specific Fab antibodies binding to HLA-A*0201 complexes presenting the wild-type EAAGIGILTV (EAA) or analogue Melan-A 10-mer ELAGIGILTV (ELA) peptide were generated to study efficacy of peptide processing and presentation. None of the selected Fab antibodies detected the naturally processed EAA/HLA-A*0201 ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200636545
更新日期:2007-07-01 00:00:00
abstract::Mercury-induced autoimmune glomerulonephritis in the Brown-Norway (BN) rat is characterized by the successive appearance of linear and granular glomerular IgG deposits. Anti-laminin autoantibodies represent the major part of the anti-glomerular basement membrane (GBM) antibodies produced in this model. Fusions were pe...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830200114
更新日期:1990-01-01 00:00:00
abstract::Normal immunosuppressive protein, prepared from human plasma by DEAE-cellulose chromatography, inhibits DNA synthesis in human cell lines of lymphocytes of both T and B origin. It also inhibits [3H]thymidine incorporation in mouse cell lines. Normal immunosuppressive protein was able to inhibit the proliferation of th...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830090216
更新日期:1979-02-01 00:00:00
abstract::E-selectin is an endothelium-specific inducible adhesion molecule which binds several inflammatory cell types, including neutrophils, monocytes, natural killer cells and a subset of memory T cells. E-selectin is important in the initial rolling interaction of these cells on inflamed endothelium. The transient kinetics...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830261221
更新日期:1996-12-01 00:00:00
abstract::Interleukin-18 (IL-18) is not only a co-stimulus for the induction of interferon-gamma but also has direct proinflammatory effects by inducing tumor necrosis factor-alpha (TNF-alpha), IL-1, IL-8 and IL-6. However, the cascade of events leading to induction of cytokines by IL-18 is unclear. The aim of the present study...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200010)30:10<3057::AID-IMMU3057>
更新日期:2000-10-01 00:00:00
abstract::Mutations in TNFRSF1A encoding TNF receptor 1 (TNFR1) cause the autosomal dominant TNF receptor-associated periodic syndrome (TRAPS): a systemic autoinflammatory disorder. Misfolding, intracellular aggregation, and ligand-independent signaling by mutant TNFR1 are central to disease pathophysiology. Our aim was to unde...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201344328
更新日期:2014-07-01 00:00:00
abstract::Foxp3-expressing Tregs play a non-redundant role in protecting against immune pathologies. Foxp3(+) Tregs can arise intra- and extra-thymically, however, the signals directing their differentiation and maintenance in the periphery are not well understood. We show that stimulation of mouse naïve CD4(+) T cells in vitro...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201041073
更新日期:2011-05-01 00:00:00
abstract::The expression of the Pit-1/GHF-1 transcription factor (hereafter Pit-1), which controls the expression of growth hormone (GH) and prolactin (PRL) in the pituitary gland, has been documented in human and rat hemopoietic and lymphoid tissues and cell lines. Pit-1 mRNA was detected by in situ hybridization in about 1% o...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830230428
更新日期:1993-04-01 00:00:00
abstract::Alum has been the only adjuvant licensed for human vaccines for decades and is still widely used, but its mechanism of action remains obscure. Recently, the NLRP3 inflammasome has been linked to the immunostimulatory properties of alum and other particulate adjuvants, although it is disputed to what degree NLRP3 is ge...
journal_title:European journal of immunology
pub_type: 杂志文章,评审
doi:10.1002/eji.200940039
更新日期:2010-03-01 00:00:00
abstract::Several sets of data indicate that ICOS regulates cytokine production in activated T cells, but is less effective on naïve T cells. This work evaluates ICOS function in human naïve CD4+ T cells through an assessment of the effect of soluble forms of the ICOS and CD28 physiological ligands on activation driven by anti-...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200535571
更新日期:2006-10-01 00:00:00
abstract::To investigate the role of TCR-pMHC interaction in regulating lung CD8 tissue-resident T cell (TR ) differentiation, polyclonal responses were compared against NP366-374 /Db and PA224-233 /Db , two immunodominant epitopes that arise during influenza A infection in mice. Memory niches distinct from iBALTs develop withi...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201747174
更新日期:2018-01-01 00:00:00
abstract::IL-7 plays many fundamental roles during murine B lineage development. One reported function is to maintain progenitors in a developmentally immature state by preventing differentiation to the surface IgM (sIgM)(+) stage. Withdrawal of IL-7 from cultures has been shown to lead to increases in mature traits such as RAG...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200425400
更新日期:2004-10-01 00:00:00
abstract::Antisera were prepared in rabbits against the idiotypic (Id) determinants of antiallergen antibodies. These antibodies were isolated from the plasma of 10 unrelated patients by immunoabsorption. Three major allergens isolated from the house dust mite, Dermatophagoides pteronyssinus (DPT), were used. The anti-Id antise...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830160520
更新日期:1986-05-01 00:00:00