Abstract:
:We have studied activation-induced changes in intracellular calcium [Ca2+]i, interleukin-2 (IL-2) secretion, and clonal abortion of the human leukaemic T-cell line Jurkat and three T-cell receptor (TcR)/CD3 receptor negative clones deficient for the TcR alpha, TcR beta and CD3 gamma chains respectively, as well as three transfectant clones reconstituted with the appropriate TcR/CD3 cDNA. For activation, the cells were exposed to anti-TcR/CD3, anti-CD2 and anti-major histocompatibility complex (anti-MHC) class I monoclonal antibodies (mAb) respectively. Cellular activation by these mAb leading to an increased IL-2 secretion was preceded by a rise in [Ca2+]i and was relatively dependent on the expression of the a TcR/CD3 complex. In contrast, anti-MHC class I mAb-induced clonal abortion in Jurkat T cells may occur without previous fluctuations in [Ca2+]i and appeared to be independent of TcR/CD3 expression. The present observation suggest the existence of different secondary messenger systems operating in Jurkat cells following activation via the TcR/CD3, CD2 and the MHC class I pathways, respectively.
journal_name
Immunologyjournal_title
Immunologyauthors
Claesson MH,Dissing S,Tscherning T,Geisler Csubject
Has Abstractpub_date
1993-03-01 00:00:00pages
444-8issue
3eissn
0019-2805issn
1365-2567journal_volume
78pub_type
杂志文章相关文献
IMMUNOLOGY文献大全abstract::In understanding the regulation of the specific immune response to Salmonella typhimurium, the role of a surface major component (porins) was studied. In this study we demonstrate that purified porins are able to induce a different response to that induced by the porins present on the S. typhimurium cell surface. Pori...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2567.1998.00492.x
更新日期:1998-05-01 00:00:00
abstract::Functional studies on heteroantisera raised against mouse B cells in rabbits suggest a correlation between thymus-independent B cells and LPS-responsive B cells, and differences in either from thymus-dependent B cells. Furthermore it seems possible to follow B-lymphocyte differentiation from antigen-uncommitted precur...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1977-05-01 00:00:00
abstract::We investigated the function of peripheral blood mononuclear cells (PBMC) in 16 patients with active psoriasis, in 15 patients with static psoriasis and in 27 healthy volunteers, by examining in vitro proliferation and antigen- and mitogen-stimulated production of interleukin-2 (IL-2) and IL-4. Plasma levels of the ne...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1995-11-01 00:00:00
abstract::Interactions between heparin and protamine in normal human serum previously were found to activate the primary complement pathway and deplete the early-acting complement components. In the present investigation, the role of heparin-protamine complexes, immunoglobulins, C1q and C1-INH in this interaction was studied. H...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1976-02-01 00:00:00
abstract::Murine embryonic stem (ES) cell-derived haematopoietic progenitor cells (HPCs) engraft and populate lymphoid organs. In vivo, HPCs engraft across MHC barriers protecting donor-type allografts from rejection. However, the underlying phenomenon remains elusive. Here, we sought to determine the mechanism by which ES cell...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1111/imm.12268
更新日期:2014-07-01 00:00:00
abstract::The chemokine receptor CCR7 is crucial for migration of mature dendritic cells (DC) directed toward secondary lymphoid organs; however, there is little knowledge about the function of the homeostatic chemokine receptor CXCR4 in DC and its contribution to directional migration of DC during inflammation. By comparing th...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2567.2005.02292.x
更新日期:2006-02-01 00:00:00
abstract::The functional avidity of a cytotoxic T lymphocyte (CTL) is known to be a critical determinant of the efficacy with which it clears pathogens. High avidity cells, which are by definition highly sensitive to peptide antigen, are superior for elimination of viruses and tumours. Our studies have established the ability o...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2567.2011.03440.x
更新日期:2011-07-01 00:00:00
abstract::Chemically cross-linked C-reactive protein (CRP) oligomers were prepared and characterized, and C1q binding and C activation were investigated. Purified human CRP was polymerized in the presence of both non-cleavable and cleavable cross-linking agents and further separated by Superose 12 analytical FPLC column chromat...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1991-12-01 00:00:00
abstract::Chemokines and their receptors regulate cell migration to sites of inflammation. The glucocorticoid dexamethasone has potent anti-inflammatory effects, yet paradoxically up-regulates expression of some cytokine receptors. We have examined the effects of dexamethasone on chemokine receptor expression. Using an RNase pr...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1046/j.0019-2805.2001.01359.x
更新日期:2002-02-01 00:00:00
abstract::HIV infection is associated with increased representation of T cells bearing an activated, memory (CD45RO+) phenotype. Although administration of antiretroviral agents and interleukin-2 (IL-2) augment depleted CD4+ T-cell numbers, such therapies have been preferentially beneficial for CD45RO+ T cells. Interleukin-15 (...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2567.1999.00807.x
更新日期:1999-06-01 00:00:00
abstract::Treatment of b4b6 rabbit peripheral blood lymphocytes with b5b5 anti-b4 antibodies at 4 degrees resulted in the modulation (disappearance) ob b4 and b6 cell surface allotype after subsequent incubation in serum-free medium for 1 h at 37 degrees. A clear dose dependence on the sensitizing anti-b4 antibody was observed....
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1978-04-01 00:00:00
abstract::To analyse the immunological mechanism of hepatocellular injury in hepatitis B virus (HBV) infection, the immunoreactivity of HBV-encoded antigens as a target for cytotoxic T lymphocyte (CTL) response was examined using recombinant vaccinia virus (RVV) expressing surface protein (S), precore/core protein (PC), and cor...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1993-10-01 00:00:00
abstract::The relationship between the IgA antibody response in serum (total and polymeric IgA) and intestinal secretions was examined in volunteers subjected to oral and parenteral typhoid vaccination. After oral vaccination (three doses of 10(11) live Ty21a vaccine given at 48-hr intervals), serum pIgA antibody to typhoid lip...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1990-02-01 00:00:00
abstract::Cutaneous delayed hypersensitivity reactions to collagen in guinea-pigs were partially but specifically suppressed if the animals had been pretreated with collagen and Freund's incomplete adjuvant. Such animals responded normally to skin-reactive factor prepared with ovalbumin. Lymphoid cells from animals with normal ...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1976-07-01 00:00:00
abstract::Susceptibility to collagen-induced arthritis (CIA), a murine model of autoimmune arthritis, is strongly linked to only two major histocompatibility complex (MHC) haplotypes, H-2q and H-2r. In order to identify the determinants of type II collagen (CII) required to induce arthritis in H-2r-bearing mice, B10.RIII mice w...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1995-04-01 00:00:00
abstract::Apoptosis of macrophages infected with pathogenic mycobacteria is an alternative host defence capable of removing the environment supporting bacterial growth. In this work the influence of virulence and bacterial load on apoptosis of alveolar macrophages during the initial phase of infection by Mycobacterium bovis was...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2567.2009.03062.x
更新日期:2009-09-01 00:00:00
abstract::Chloroquine treatment of antigen-presenting cells (APC) was explored as a tool to investigate the processing pathway for major histocompatibility complex (MHC) class II-restricted presentation of the endogenous secreted hen egg lysozyme (HEL) and transmembrane measles virus haemagglutinin (HA). A 72-hr pretreatment of...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1993-12-01 00:00:00
abstract::The IgE antibody responses of inbred BALB/c mice to subcutaneously injected antigens, given without adjuvant, were studied. Cocksfoot grass pollen extract (GPE) (100-100,000 pnu) induced no detectable primary IgE antibody responses but following second and subsequent injections, substantial secondary responses were pr...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1980-04-01 00:00:00
abstract::Staphylococcus aureus is a major pathogen that can cause a broad spectrum of serious infections including skin infections, pneumonia and sepsis. Peritoneal mast cells have been implicated in the host response towards various bacterial insults and to provide mechanistic insight into the role of mast cells in intraperit...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1111/imm.12297
更新日期:2014-10-01 00:00:00
abstract::Donor T cells are crucial for target organ injury in graft-versus-host disease (GVHD). We examined the effects of donor T cells on the target organs using a parent-into-F1 model of acute and chronic GVHD. Donor T cells showed engraftment in the spleen, small intestine and liver of mice with acute GVHD, causing typical...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2567.2001.01240.x
更新日期:2001-07-01 00:00:00
abstract::Regeneration of the thymus was studied in rats that were treated with a single oral dose of the organotin compound di-n-butyltin dichloride (DBTC). After an initial maximum depletion of cortical BrdU+ thymocytes on day 2 after treatment, repopulation appeared to start on day 3 as indicated by an increased number of Br...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1993-04-01 00:00:00
abstract::Activation of lymph nodes by the T-cell mitogens PHA and Con A is correlated with a depletion of lymphatic mast cells. This result, and our earlier reports on the depletion of mast cells in lymph nodes stimulated by allogeneic and tumour cells, as well as on the elevation of mast cell number in thymus-less 'nude' mice...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1985-06-01 00:00:00
abstract::The liver is a front-line immune tissue that plays a major role in the detection, capture and clearance of pathogens and foreign antigens entering the bloodstream, especially from the gut. Our largest internal organ maintains this immune barrier in the face of constant exposure to external but harmless antigens throug...
journal_title:Immunology
pub_type: 杂志文章,评审
doi:10.1111/imm.13193
更新日期:2020-06-01 00:00:00
abstract::Interleukin-16 (IL-16) acts as a chemoattractant for CD4+ cells, as a modulator of T-cell activation, and plays a key role in asthma. This report describes the cytokine-inducing effects of IL-16 on total peripheral blood mononuclear cells (PBMC) and PBMC subpopulations. While CD4+ T lymphocytes did not secrete cytokin...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1046/j.1365-2567.2000.00997.x
更新日期:2000-05-01 00:00:00
abstract::The non-precipitating guinea-pig IgG1 and IgG2 antibodies, produced by administration of an excessive dose of hen ovalbumin (OA), were capable of forming only certain soluble complexes having molar ratios of antibody to antigen lower than 1-5:1, which were lower than the minimum ratio of 2-5:1 shown by anti-OA antibod...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1976-07-01 00:00:00
abstract::Cytokines and their receptors represent key targets for therapeutic intervention. Ligands are being used to supplement cell numbers that become depleted as a result of disease (organ failure, infection) or subsequent disease treatments (i.e. chemotherapy). Conversely, the inhibition of target cell binding by cytokines...
journal_title:Immunology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2567.2004.01886.x
更新日期:2004-06-01 00:00:00
abstract::Docosahexaenoic (22:6 n-3) and eicosapentaenoic acid (20:5 n-3) stimulated the oxygen-dependent respiratory burst in intact neutrophils in a dose-dependent manner as measured by either superoxide dismutase (SOD)-inhibitable cytochrome c reduction and lucigenin-dependent chemiluminescence. A number of longer chain hexa...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1991-05-01 00:00:00
abstract::Anti-CD20 monoclonal antibodies are promising for the treatment of B-cell malignancies such as chronic lymphocytic leukaemia and autoimmune diseases where auto-antibodies play an important role. Anti-CD20 such as rituximab (RTX) mediates B-cell depletion through mechanisms such as complement-mediated cytotoxicity and ...
journal_title:Immunology
pub_type: 杂志文章
doi:10.1111/j.1365-2567.2011.03434.x
更新日期:2011-06-01 00:00:00
abstract::Trypanosoma cruzi, the causative agent of Chagas' disease, suppresses immune responses during the acute phase and has been shown to induce multiple cellular alterations in activated human T lymphocytes. However, no information is available regarding the effects of this parasite on human B cells. Using an in vitro cult...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1991-10-01 00:00:00
abstract::Interleukin-3 activity is produced by T cells at an early phase after antigenic stimulation, and its quantitation provides a sensitive and non-destructive method for assaying T-cell activation. It can be detected before increased uptake of [3H]thymidine into DNA occurs, and is more sensitive than measuring [3H]thymidi...
journal_title:Immunology
pub_type: 杂志文章
doi:
更新日期:1987-12-01 00:00:00