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 secrete antibody. B cells from CBA/N mice carrying the xid defect, and those from the lipopolysaccharide-unresponsive C3H/HeJ strain also respond to this combination. Suboptimal doses of the two stimuli synergize with B cell-stimulating factor 1 in promoting proliferation of resting B cells, but the co-mitogen does not substitute for type II B cell growth factor in the BCL1 lymphoma. Furthermore, (as predicted) the combination of these two agents does not induce the breakdown of inositol phospholipids in B cells. These data are consistent with the hypothesis that elevation of intracellular Ca2+ (by the ionophore), plus activation of protein kinase C (by PMA) leads to DNA synthesis in B cells. The combination of Ca2+ ionophore and PMA thus appears to essentially mimic the biochemical effects of ligation of surface immunoglobulin receptors on B cells, by providing the two second messengers normally emanating from the receptor-mediated breakdown of polyphosphoinositides.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Klaus GG,O'Garra A,Bijsterbosch MK,Holman Mdoi
10.1002/eji.1830160118subject
Has Abstractpub_date
1986-01-01 00:00:00pages
92-7issue
1eissn
0014-2980issn
1521-4141journal_volume
16pub_type
杂志文章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::Lymph node cells derived from A.TH or A.TL mice primed with beef cytochrome c show striking patterns of reactivity when assayed in vitro for antigen-induced T cell proliferation. Whereas cells from A.TH mice respond specifically to beef cytochrome c or peptides composed of amino acids 1-65 and 81-104, cells from A.TL ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830110210
更新日期:1981-02-01 00:00:00
abstract::Plasma cells secreting IgG, M, and A abound in the synovium of patients with rheumatoid arthritis, yet their immunoglobulin repertoire and clonal relationship remain to be elucidated. Locally synthesized immunoglobulins probably contribute to the chronic joint inflammatory processes which are characteristic of these p...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830270219
更新日期:1997-02-01 00:00:00
abstract::Natural Killer (NK) cell-based immunotherapy is a promising approach to treat hepatocellular carcinoma (HCC). The mechanisms underlying the regulation of NK cell activity are not completely understood. In this research, we identified the expression of taste receptor type 1 member 1 (T1R1) and taste receptor type 1 mem...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201847688
更新日期:2018-12-01 00:00:00
abstract::Subcutaneous immunization with hen egg-white lysozyme (HEL) in complete Freund's adjuvant induces, both in antibody responder and nonresponder mice, a classical delayed-type hypersensitivity (DTH) reaction evaluated as footpad swelling. This response can be specifically transferred to naive recipients by Lyt-1+2- T ce...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830140910
更新日期:1984-09-01 00:00:00
abstract::The transcription factor Hhex (hematopoietically expressed homeobox gene) is critical for development of multiple lymphoid lineages beyond the common lymphoid progenitor. In addition, Hhex regulates hematopoietic stem cell (HSC) self-renewal, emergency hematopoiesis, and acute myeloid leukemia initiation and maintenan...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201948371
更新日期:2020-07-01 00:00:00
abstract::Current concepts of activation of the alternative pathway of complement (APC) focus on the central role of an amplification mechanism triggered by C3b which is covalently bound to the surfact of activating substances. Using sulfated polyanions as model substances, an efficient fluid-phase activation of complement is d...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830110405
更新日期:1981-04-01 00:00:00
abstract::The glycoprotein CD8 is believed to play an important role in the maturation and function of MHC class I-restricted T lymphocytes. CD8 has been proposed to function as a co-receptor of the TcR to participate in signal transduction, possibly through its cytoplasmic domain that binds to protein tyrosine kinase p56lck. A...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830231117
更新日期:1993-11-01 00:00:00
abstract::The thymus is the primary organ for T-cell differentiation and maturation. Unlike other major organs, the thymus is highly dynamic, capable of undergoing multiple rounds of almost complete atrophy followed by rapid restoration. The process of thymic atrophy, or involution, results in decreased thymopoiesis and emigrat...
journal_title:European journal of immunology
pub_type: 杂志文章,评审
doi:10.1002/eji.201142305
更新日期:2012-05-01 00:00:00
abstract::Murine splenic T lymphocytes display maximal cellular myc gene (c-myc) expression already 3 h after concanavalin A stimulation and subsequent down-regulation before the onset of DNA synthesis. Stimulation by leucoagglutinin in the presence or absence of interleukin 2 leads to only low initial levels of c-myc-specific ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830160319
更新日期:1986-03-01 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::The human type I interferon (IFN) receptor was characterized by ligand blotting. In this method, plasmalemma proteins or detergent-lysed whole-cell extracts from human Burkitt lymphoma cell lines were separated on polyacrylamide gels and subsequently transferred onto nitrocellulose sheets. Probing the blots with 3 x 1...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830181221
更新日期:1988-12-01 00:00:00
abstract::Nonhematopoietic stromal cells contribute to the organization and homeostasis of secondary lymphoid organs by producing cytokines and chemokines. The development and maintenance of these stromal cells are thought to be regulated by innate immune cells. Indeed, we recently showed that signal regulatory protein α (SIRPα...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201948103
更新日期:2019-09-01 00:00:00
abstract::Recurrent respiratory tract infections (RRTIs) are the first leading cause of community- and nosocomial-acquired infections. Antibiotics remain the mainstay of treatment, enhancing the potential to develop antibiotic resistances. Therefore, the development of new alternative approaches to prevent and treat RRTIs is hi...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201747024
更新日期:2018-01-01 00:00:00
abstract::In a search for proteins involved in signal transduction through the T cell receptor (TcR/CD3 complex), a recently developed highly efficient method for labeling of nucleotide binding proteins in permeabilized cells was applied. Here, we report that human CD3-gamma could be labeled by periodate-oxidized [alpha-32P] GT...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830230224
更新日期:1993-02-01 00:00:00
abstract::As we approach the centenary of Elie Metchnikoff's Nobel Prize (1908), it is opportune to reflect upon the history of macrophage immunobiology, take stock of current knowledge and anticipate questions for the future. Starting from his appreciation of phagocytosis as an important determinant of host defence against inf...
journal_title:European journal of immunology
pub_type: 历史文章,杂志文章,评审
doi:10.1002/eji.200737638
更新日期:2007-11-01 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::C57BL/10ScCr (Cr) mice carry a deletion of the Toll-like receptor 4 (tlr4) gene (i.e. they are tlr4(0/0)) and are thus refractory to LPS effects. Insertion of wild-type tlr4 transgene into the tlr4(0/0) Cr germ line endowed LPS susceptibility in the two transgenic lines created, indicating that TLR4 is the only limiti...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200323431
更新日期:2003-03-01 00:00:00
abstract::Alkaline phosphatases (APases, EC 3.1.3.1) are ecto-enzymes bound to cell membranes by a phosphatidyl-inositol anchor. We have previously shown that APase is present on activated murine B cells and its expression correlates with the process of B cell differentiation into immunoglobulin secretion. Recently, a monoclona...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830200436
更新日期:1990-04-01 00:00:00
abstract::It is widely accepted that females have superior immune responses than males, but the ways by which sex hormones may enhance T cell responses are still poorly understood. In the present study, we analyzed the effect of estrogens on CD4 T cell activation and differentiation after immunization with exogenous antigens. W...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/immu.200310027
更新日期:2003-02-01 00:00:00
abstract::Lymphocyte infiltration to pancreatic islets is associated to chemoattraction, as are other inflammatory autoimmune processes. We examined whether development of insulitis and diabetes depends on chemoattraction of lymphocytes via the CCR5 chemokine receptor. In non-obese diabetic (NOD) mice, a substantial fraction of...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200324285
更新日期:2004-02-01 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::Injection of M-1 (Cmu), G-1 (Cgamma) heterozygous chickens on the day of hatch with anti-IgM-1 antiserum induced allotype suppression from which chickens recovered over a period of approximately 4 months. The suppression of the serum IgM-1 levels was matched by a decrease in the number of splenic and peripheral blood ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830110407
更新日期:1981-04-01 00:00:00
abstract::Chronic hepatitis C virus (HCV) infection frequently develops into liver disease and is accompanied by extra-hepatic autoimmune manifestations. The tetraspanin CD81 is a putative HCV receptor as it binds the E2 envelope glycoprotein of HCV and bona fide HCV particles. Here we show that HCV E2 binding to CD81 on human ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200101)31:1<166::aid-immu166>3.0
更新日期:2001-01-01 00:00:00
abstract::Three molecular forms of the IL-1 receptor antagonist (IL-1ra) have been identified and cloned. Secreted IL-1ra (sIL-1ra or IL-1ra1) contains a classical leader peptide giving a released mature protein. Two intracellular isoforms, icIL-1ra type I (IL-1ra2) and icIL-1ra type II (IL-1ra3), have no leader sequence, thus ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199903)29:03<781::AID-IMMU
更新日期:1999-03-01 00:00:00
abstract::Recent evidence suggests a role for phosphatidylinositol (PI) 3-kinase in various inflammatory responses. In this study, the consequences of LPS-induced PI 3-kinase activation on cytokine and chemokine expression and the intracellular mechanisms of inflammatory activation were examined in mouse macrophages. LPS stimul...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200323376
更新日期:2003-03-01 00:00:00
abstract::F liver protein occurs in serum at low concentration, and therefore induces tolerance of self only in T cells. T cells which mature in cultured thymus lobes in the absence of this protein become reactive towards it but can be prevented from doing so by exposure to the protein while in culture. The threshold of toleran...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830220130
更新日期:1992-01-01 00:00:00
abstract::Mouse peritoneal macrophages activated with interferon-gamma (IFN-gamma) and lipopolysaccharide produce substantial amounts of nitric oxide (NO), which correlates with the elimination of the intracellular protozoan parasite Leishmania major. Both the production of NO and the leishmanicidal function of the activated ma...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830220223
更新日期:1992-02-01 00:00:00
abstract::We have shown previously that complement factor H (CFH) and complement factor B (CFB) are constitutively expressed by retinal pigment epithelial cells and their production is regulated by inflammatory cytokines, suggesting that the alternative pathway (AP) of complement activation might play a role in retinal inflamma...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201040323
更新日期:2010-10-01 00:00:00
abstract::In mice infected with the non-lethal malaria parasite Plasmodium chabaudi chabaudi AS, a prominent switch from a Th1 to a Th2 type of response occurs in CD4+ T cells at the time of peak parasitemia or shortly thereafter (9-15 days after infection). This is accompanied by a major increase in IL-4, and a similar decreas...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200009)30:9<2660::AID-IMMU2660>3
更新日期:2000-09-01 00:00:00