Abstract:
:Membrane-coated microvesicles (MVs) have been identified as important mediators in intercellular communication. During the process of apoptosis, dying cells dynamically release MVs. Neutrophils are the most abundant type of leukocytes in the circulation. Due to their very short lifespan, it is likely that they are the source of large amounts of apoptotic cell-derived MVs. Here, we show that MVs released by apoptotic human polymorphonuclear neutrophils (apoPMN-MVs), but not the apoptotic neutrophils themselves, selectively suppress the proliferation of CD25 (IL-2Rα)neg CD127 (IL-7Rα)pos Th cells in a dose-dependent manner. In contrast, the proliferation of total T cells is not affected by MVs. Importantly, apoPMN-MVs suppress the secretion of IL-2 as well as the expression of and signaling via the IL-2 receptor (IL-2R) by CD25neg CD127pos Th cells. Addition of IL-7 strongly reduced the suppression of T-cell proliferation by MVs and the addition of IL-2 completely abrogated the suppressive effect. Thus, apoPMN-MVs suppressed a subset of Th cells by downregulating IL-2 and IL-2R expression and signaling. This may represent an important mechanism to prevent the activation and expansion of resting T cells in the absence of sufficient cytokine stimulation, and thereby maintaining immune tolerance.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Shen G,Krienke S,Schiller P,Nießen A,Neu S,Eckstein V,Schiller M,Lorenz HM,Tykocinski LOdoi
10.1002/eji.201546203subject
Has Abstractpub_date
2017-05-01 00:00:00pages
900-910issue
5eissn
0014-2980issn
1521-4141journal_volume
47pub_type
杂志文章abstract::The cornea is an immune privileged tissue. Since arginase has been found to modulate T-cell function by depleting arginine, we investigated the expression of arginase in the cornea and its possible role in immune privilege using a murine transplant model. We found that both the endothelium and epithelium of murine cor...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201141683
更新日期:2011-10-01 00:00:00
abstract::A commonly held postulate regarding the etiology of rheumatoid arthritis (RA) is that of antigenic mimicry. Recent interest has focused on the mycobacterial 65-kDa heat-shock protein (hsp) as a putative causal agent. The 65-kDa hsp has over 40% sequence homology with the human hsp 60, and elevated synovial T cell resp...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830220529
更新日期:1992-05-01 00:00:00
abstract::Immunization leads to the generation of both antibody-forming cells (AFC) and memory B cells which are thought to arise in germinal centers within lymphoid follicles. The findings that the precursors to memory B cells reside in the J11Dlo subpopulation of the spleens in non-immune mice and that this subpopulation is d...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830220526
更新日期:1992-05-01 00:00:00
abstract::The murine T cell clone D10.G4.1 can be induced to proliferate by monoclonal antibodies (mAb) to the T cell receptor (TcR) or to Thy-1 molecules. When cells were stimulated by anti-TcR mAb, a group of 4 proteins (19-25 kDa) was specifically phosphorylated. This effect was completely mimicked by the Ca2+ ionophore A231...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830180727
更新日期:1988-07-01 00:00:00
abstract::Differential screening of a subtracted cDNA library led to the detection of two distinct but homologous mouse cDNA, called CTLA-2 alpha and CTLA-2 beta. The corresponding transcripts have a tissue distribution restricted to T lymphocytes, where they are inducible upon activation, and to mast cells. The open-frame regi...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830190409
更新日期:1989-04-01 00:00:00
abstract::Immunoglobulin (Ig) production by lipopolysaccharide (LPS)-stimulated cells in the presence of various combinations of interleukin (IL)2, IL4 and IL5 was examined. IgG1, IgM and IgE secretion was studied using a 3T3-fibroblast filler cell-supported B cell culture system, either at low cell density to support maximal I...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830191109
更新日期:1989-11-01 00:00:00
abstract::Crosslinking of Fc γ receptor II B (FcγRIIB) and the BCR by immune complexes (IC) can downregulate antigen-specific B-cell responses. Accordingly, FcγRIIB deficiencies have been associated with B-cell hyperactivity in patients with systemic lupus erythematosus and mouse models of lupus. However, we have previously sho...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200940184
更新日期:2010-10-01 00:00:00
abstract::Regulatory T cells (Treg) provide protection from autoimmune disease, graft-versus-host disease, transplant rejection and overwhelming tissue destruction during infections. Conversely, high Treg numbers enable cancer cells to evade the host immune response. Thus, Treg are seen as an important tool to manipulate the im...
journal_title:European journal of immunology
pub_type: 杂志文章,评审
doi:10.1002/eji.200636459
更新日期:2006-11-01 00:00:00
abstract::The contribution of direct and indirect alloresponses by CD4(+) Th1 and Th2 cells in acute and chronic rejection of allogeneic transplants remains unclear. In the present study, we addressed this question using a transplant model in a single MHC class I-disparate donor-recipient mouse combination. BALB/c-dm2 (dm2) mut...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200838980
更新日期:2009-11-01 00:00:00
abstract::The monoclonal antibody HC1/6 generated against phorbol 12-myristate 13-acetate-treated U-937 cells recognizes a new cell surface antigen with a broad relative molecular mass ranging from 100 to 150 kDa. This antigen is also present on monocytes, platelets and endothelial cells and is weakly expressed by granulocytes....
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830190804
更新日期:1989-08-01 00:00:00
abstract::A monoclonal antibody (mAb) directed to a human leukocyte 55-kDa cell surface molecule with identical cellular distribution and biochemical properties to the CD4 was able to inhibit T cell proliferation induced either in a mixed lymphocyte culture or by activation with mAb anti-CD3, anti-CD2 or phytohemagglutinin. The...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830170205
更新日期:1987-02-01 00:00:00
abstract::Unexpected fetal loss is one of the common complications of pregnancy; however, the pathogenesis of many miscarriages, particularly those not associated with infections, is unknown. We previously found that activated DEC-205+ dendritic cells (DCs) and NK1.1+ invariant natural killer T (iNKT) cells are recruited into t...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201747162
更新日期:2018-06-01 00:00:00
abstract::Delayed hypersensitivity (DH) reaction to human Ig, corynebacterium parvum or allogeneic cells at the site of tumor cell injection, suppressed the fibrosarcoma (SCFS) growth in chickens. Spleen cells of SC chickens sensitized to human Ig or C. parvum suppressed SCFS growth when adoptively transferred with tumor cells,...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830080408
更新日期:1978-04-01 00:00:00
abstract::F protein is found predominantly in the liver and is of unknown function. The protein has been of interest to immunologists in the areas of self tolerance and the immunogenetics of the anti-F protein response. In the mouse there are two alleles (F1 and F2), and although mice are completely tolerant to the self form of...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830210521
更新日期:1991-05-01 00:00:00
abstract::Antigen-presenting macrophages (M phi) were derived from day 7 cultures of bone marrow stem cells using L cell conditioned medium. The adherent bone marrow-derived macrophages (BMM phi) were 100% esterase-positive, 95% positive for C3 receptors, 93% positive for Fc receptors, and 95% actively phagocytic. Indirect immu...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830121202
更新日期:1982-12-01 00:00:00
abstract::IFN-gamma plays a critical role in protection against Bordetella pertussis, but Th1 cells are only detectable after the infection has started to resolve, suggesting a protective role for innate IFN-gamma early in infection. Here, we demonstrate significant recruitment of NK cells and NKT cells into the lungs following...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200425092
更新日期:2004-09-01 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::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::Stilbene disulfonates are known to competitively inhibit Cl-/HCO3- flux through Band 3-related anion exchange (AE) proteins. To study the role of AE in lymphocyte activation, stilbene disulfonates were added to cultures of rat splenocytes (SPL). Four different stilbene derivatives were tested and each directly stimula...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830220509
更新日期:1992-05-01 00:00:00
abstract::In mouse Peyer's patches (PP), dendritic cells (DC) are localized in T cell areas as NLDC145+ CD11c+ cells, and in the dome and corona region of the follicle as NLDC145- CD11c+ cells, respectively, suggesting the presence of two different DC populations with distinct roles in antigen uptake, processing, and presentati...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830270605
更新日期:1997-06-01 00:00:00
abstract::New Zealand Black (NZB) mice spontaneously develop an autoimmune hemolytic anemia together with a markedly increased production of polyclonal antibodies. The spontaneous generation of anti-mouse red blood cells (MRBC), anti-bromelain-treated MRBC (BrMRBC) and anti-DNA autoantibodies was compared to the polyclonal anti...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830201107
更新日期:1990-11-01 00:00:00
abstract::Interleukin-12 (IL-12) and Flt3 ligand (FL) regulate hematopoiesis by stimulating proliferation, differentiation and migration of progenitor and/or stem cells. In this study, we evaluated the in vivo effect of IL-12 alone or in combination with FL on dendritic cell (DC) generation and accumulation in murine spleen, ly...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200009)30:9<2565::AID-IMMU2565>3
更新日期:2000-09-01 00:00:00
abstract::A novel surface molecule, Tp90, is described which appears to be involved in an antigen-independent pathway of human T lymphocyte activation. The Tp90 molecule was identified by a monoclonal antibody (mAb), MX20, obtained from a fusion using spleen cells of a mouse immunized with cells from two T cell leukemia lines, ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830170616
更新日期:1987-06-01 00:00:00
abstract::CD16-positive (CD14(++) CD16(+) and CD14(+) CD16(++) ) monocytes have unique features with respect to phenotype and function. We have used transcriptional profiling for comparison of CD16-positive monocytes and classical monocytes. We show herein that 187 genes are greater than fivefold differentially expressed, incl...
journal_title:European journal of immunology
pub_type: 临床试验,杂志文章
doi:10.1002/eji.201141907
更新日期:2012-04-01 00:00:00
abstract::Naive and central memory CD8 T cells use CCR7 to recirculate through T cell zones of secondary lymphoid organs where they can encounter antigen. Here we describe a subset of human CD8 T cells expressing CXCR5 which enables homing in response to CXCL13 produced within B cell follicles. CXCR5+ CD8 T cells were found in ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200636746
更新日期:2007-12-01 00:00:00
abstract::LIGHT is a recently identified member of the TNF superfamily that is up-regulated on activated T cells and can cooperate with CD40L to condition DC for the priming of CTL. In this report, we show that an intracellular pool of LIGHT is found selectively in some CD45RA-CD27+CD4+ "central" memory T cells and to a greater...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200324410
更新日期:2003-11-01 00:00:00
abstract::Platelet-activating factor (PAF) is a phospholipid mediator of anaphylaxis, released from basophils of several mammalian species, that aggregates platelets and releases their vasoactive amines. The ionophore A23 187 induced the release of PAF from rat and mouse peritoneal cells, a mixed cell population that was fracti...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830090512
更新日期:1979-05-01 00:00:00
abstract::IL-12 is an important immunomodulatory cytokine that induces tyrosine phosphorylation and activation of the signal transducer and activator of transcription (STAT)4. IL-12 induces sustained activation and nuclear translocation of STAT4 and this regulatory process is coupled to both tyrosine and serine phosphorylation ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(200005)30:5<1425::AID-IMMU
更新日期:2000-05-01 00:00:00
abstract::The pathways of human anti-pig T cell xenorecognition have been investigated. Freshly isolated porcine alveolar lavage (AL) cells induced primary proliferative responses by human peripheral and cord blood mononuclear cells which were inhibited by anti-HLA-DR antibody (indirect xenorecognition). Following over-night cu...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830260630
更新日期:1996-06-01 00:00:00
abstract::CD16 is an IgG Fc receptor that is predominantly expressed on human natural killer (NK) cells and granulocytes. The CD16 antigen expressed on neutrophils is a 50 to 70-kDa glycoprotein attached to the plasma membrane by a phosphatidylinositol-glycan linkage that is susceptible to cleavage by phosphatidylinositol-speci...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830190431
更新日期:1989-04-01 00:00:00