Abstract:
:The regulation of neutrophil half-life by members of the coagulation cascade is critical for the resolution of the inflammatory response. We have demonstrated that soluble fibrinogen (sFbg) delays human neutrophil (PMN) apoptosis through a mechanism that involves CD11b interactions, and phosphorylation of focal adhesion kinase (FAK) and extracellular signal-regulated kinase 1/2 (ERK1/2). Since NF-kappa B is a key element in the regulation of apoptotic mechanisms in several immune cells, we investigated whether NF-kappa B is involved in the control of PMN survival by sFbg. We show that sFbg triggers inhibitor protein kappa B (I kappa B-alpha) degradation and NF-kappa B activation. Furthermore, pharmacological inhibition of NF-kappa B abrogates sFbg effects on apoptosis. In addition, specific inhibition of MAPK ERK1/2 significantly reduces NF-kappa B translocation by sFbg, suggesting a relationship between ERK1/2 and NF-kappa B activation. Similar results are obtained when granulocytic-differentiated HL-60 cells are treated with sFbg, making this model highly attractive for integrin-induced gene expression studies. It can be concluded that NF-kappa B participates in the prevention of apoptosis induced by sFbg with the participation of MAPK ERK1/2. These results shed light on the molecular mechanisms that control human granulocyte apoptosis, and suggest that NF-kappa B regulation may be of benefit for the resolution of the inflammatory response.
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Rubel C,Gómez S,Fernández GC,Isturiz MA,Caamaño J,Palermo MSdoi
10.1002/eji.200323512keywords:
subject
Has Abstractpub_date
2003-05-01 00:00:00pages
1429-38issue
5eissn
0014-2980issn
1521-4141journal_volume
33pub_type
杂志文章abstract::The multimeric Fc gamma RIIIA (CD16) complex is expressed on the surface of natural killer (NK) cells and is composed of a 50-70-kDa transmembrane glycoprotein Fc gamma receptor (CD16), the T cell receptor (TCR)-zeta chain, and the Fc epsilon RI gamma chain. Cross-linking Fc gamma RIIIA initiates the rapid tyrosine ph...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830231017
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abstract::Cross-linking of surface immunoglobulin (sIg) by antibodies against IgM, IgG and IgD activates B cells and in some circumstances can induce cell proliferation. We studied the potential link between anti-Ig-induced changes in the cytosolic free Ca2+ concentration ([Ca2+]i), inositol phosphate production and the ability...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830171209
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abstract::The MRC OX-47 monoclonal antibody recognizes a membrane antigen present at low levels on many lymphocytes but whose expression is markedly increased on activation with mitogens. cDNA clones for the OX-47 antigen were isolated from an expression library and the protein sequence deduced. It contains a leader sequence gi...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830210320
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abstract::In the present study, we have investigated the anatomic distribution and the function of different populations of HIV-1- and cytomegalovirus (CMV)-specific memory CD8 T cells. The different populations of virus-specific memory CD8 T cells were distinguished on the basis of the expression of CD45RA and CCR7, and the co...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200212)32:12<3756::AID-IMMU3756>
更新日期:2002-12-01 00:00:00
abstract::The most common reason for heart failure in young adults is dilated cardiomyopathy often resulting from myocarditis. Clinical studies and animal models provide evidence that an autoimmune response against heart myosin is the underlying reason for the disease. IL-12 has been suggested to play a key role in development ...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200636484
更新日期:2006-11-01 00:00:00
abstract::Development of Th1 and Th2 effector lymphocytes is driven primarily by IL-12 or IL-4, but is also influenced by the strength of antigenic stimulation. However, the mechanism by which TCR signaling contributes to T cell polarization remains elusive. We show that in the presence of IL-12 a short TCR stimulation can lead...
journal_title:European journal of immunology
pub_type: 杂志文章
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200636421
更新日期:2007-10-01 00:00:00
abstract::Using a new mAb, 2F1, we characterize a mouse natural killer (NK) cell antigen termed 'killer cell lectin-like receptor G1' (KLRG1; formerly mouse MAFA or 2F1-Ag). KLRG1 is expressed on 30-60% of murine NK cells, and a small fraction of T cells, and is composed of a homodimer of glycosylated 30-38-kDa subunits. Striki...
journal_title:European journal of immunology
pub_type: 杂志文章
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abstract::Ab-restricted, H-Y-specific T cell clones from C57BL/6 mice were found to use predominantly V beta 6 T cell receptor genes, conferring Mls-1a reactivity. However, the expression of Mls-1a as a self antigen in (DBA/2 x C57BL/6)F1 mice did not turn these mice into nonresponders to H-Y. Instead of V beta 6, they used oth...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830190322
更新日期:1989-03-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200108)31:8<2284::aid-immu2284>3
更新日期:2001-08-01 00:00:00
abstract::Production of indoleamine 2,3-dioxygenase (IDO) by tumor cells, leading to tryptophan depletion and production of immunosuppressive metabolites, may facilitate immune tolerance of cancer. IDO gene is also expressed in dendritic cells (DC) upon maturation induced by lipopolysaccarides or IFN. We investigated IDO gene e...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200535616
更新日期:2006-02-01 00:00:00
abstract::CD40 ligand (CD40L) and IL-4 are sufficient to induce resting murine B cells to divide and switch isotypes from IgM and IgD to IgG1 and IgE. Tracking of cell division following (5- and 6) carboxyfluorescein diacetate succinimidyl ester (CFSE) labeling revealed that B cells expressed IgG1 after three cell divisions, an...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/(SICI)1521-4141(199803)28:03<1040::AID-IMM
更新日期:1998-03-01 00:00:00
abstract::Using immunoglobulin (Ig)-recognizing T helper clones the expression of Ig peptide/major histocompatibility complex class II complexes derived by the processing of endogeneous Ig molecules in the thymus was demonstrated. It was found that thymic B cells but not "classic" thymic antigen-presenting cells and macrophages...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830201012
更新日期:1990-10-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.200939543
更新日期:2009-10-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830110510
更新日期:1981-05-01 00:00:00
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200205)32:5<1230::AID-IMMU1230>3
更新日期:2002-05-01 00:00:00
abstract::Mouse mammary tumor virus (MMTV) is acquired by neonates through milk and first infects lymphocytes in Peyer's patches. We show here that newborn mice lacking beta7 integrin or L-selectin were infected with MMTV at wild-type levels in both their lymphoid and mammary tissues. Superantigen-mediated activation and cognat...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/1521-4141(200204)32:4<945::AID-IMMU945>3.0
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journal_title:European journal of immunology
pub_type: 杂志文章,评审
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journal_title:European journal of immunology
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journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830230805
更新日期:1993-08-01 00:00:00
abstract::An immunoglobulin epsilon-chain fragment was synthesized in E. coli by cloning and expression of the gene coding for the second, third and fourth constant domains of the human IgE heavy chain. The bacterial CH2-4 polypeptide product was assembled by oxidation into a covalently linked dimeric epsilon-chain molecule pre...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830150920
更新日期:1985-09-01 00:00:00
abstract::B cells have multiple functions in adaptive immunity, including antibody production, antigen presentation and regulation of T-cell responses. Recent evidences indicate that B cells have more subsets than previously thought and may have non-classical functions, such as involvement in innate immunity and immune regulati...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.201040840
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abstract::Autoimmune diseases including multiple sclerosis (MS) are the result of an imbalanced immune tolerance network. Dendritic cells (DCs) are key players in both initiating immunity (immunogenic DCs) and regulating immune responses (tolerogenic DCs = tolDCs) and are potential targets for the treatment of MS. While the imm...
journal_title:European journal of immunology
pub_type: 评论,杂志文章
doi:10.1002/eji.201242402
更新日期:2012-03-01 00:00:00
abstract::The expression of an X-linked defect in the CBA/N strain of mice has been found to result in a number of immune abnormalities. These include low responsiveness to antigens and a greatly reduced ability to respond to many of the common B cell mitogens. An in vitro manifestation of this condition is the virtual inabilit...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830220419
更新日期:1992-04-01 00:00:00
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journal_title:European journal of immunology
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更新日期:2008-02-01 00:00:00
abstract::The pathways leading to activation of mucosal lamina propria (LP) T cells differ from those of peripheral T cells. LP T cells exhibit enhanced IFN-gamma secretion when activated through the CD2 pathway. This study demonstrates CD2 signaling is followed by activation of STAT proteins in both peripheral blood mononuclea...
journal_title:European journal of immunology
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doi:10.1002/eji.200322875
更新日期:2003-05-01 00:00:00
abstract::We have determined the cell cycle position of individual mouse leukemia L 1210 cells by cytophotometric and autoradiographic techniques and simultaneously determined the amount of histocompatibility antigens expressed on the surface of individual cells by quantitative immunofluorescence. Interferon treatment of L 1210...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/eji.1830060112
更新日期:1976-01-01 00:00:00
abstract::Previous studies have suggested that T-lymphocyte dysfunction might be attributable to nitrative stress induced by reactive nitrogen species (RNS). In this manuscript, we explored this hypothesis and provided a direct demonstration of the inhibitory effects of RNS on human T-cell signaling, activation, and migration. ...
journal_title:European journal of immunology
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更新日期:2011-07-01 00:00:00
abstract::In the homeostasis of the immune system regulatory cells play a major role. Removal of one group of regulatory cells, the CD25(+)CD4(+) T cells, leads to autoimmune manifestations in experimental animal models, and reintroduction of this population prevents disease. This study addresses the role of such regulatory T c...
journal_title:European journal of immunology
pub_type: 杂志文章
doi:10.1002/immu.200390024
更新日期:2003-01-01 00:00:00