| Endothelial cell overexpression of fas ligand attenuates ischemia-reperfusion injury in the heart. | |
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MedLine Citation:
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PMID: 12576484 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Fas ligand (FasL) is a member of tumor necrosis factor family that induces apoptosis in target cells that express Fas. The function of FasL during inflammation remains controversial. In this study, we examined the role of vascular endothelial FasL during acute myocardial ischemia-reperfusion that is closely associated with inflammation. Transgenic mouse lines were established that overexpress human FasL on endothelium under the control of the vascular endothelial cadherin promoter. Expression of FasL transgene was detected at both mRNA and protein levels, and functional transgene-encoded FasL protein was specifically expressed on the surface of vascular endothelial cells. Transgenic mice developed normally and had normal hearts. When subjected to 30 min of myocardial ischemia and 72 h of reperfusion, myocardial infarct size was reduced by 42% in the transgenic mice compared with nontransgenic littermates (p < 0.05). Moreover, hemodynamic data demonstrated that transgenic hearts performed better following ischemia and reperfusion compared with nontransgenic hearts. Myocardial neutrophil infiltration was reduced by 54% after 6 h of reperfusion in transgenic hearts (p < 0.01). Neutrophil depletion prior to ischemia-reperfusion injury led to smaller infarcts that were not different between transgenic and nontransgenic mice, suggesting that endothelial FasL may attenuate ischemia-reperfusion injury by abating the inflammatory response. These results indicate that vascular endothelial FasL may exert potent anti-inflammatory actions in the setting of myocardial ischemia-reperfusion injury. |
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Authors:
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Jiang Yang; Steven P Jones; Toshimitsu Suhara; James J M Greer; Paul D Ware; Nhan P Nguyen; Harris Perlman; David P Nelson; David J Lefer; Kenneth Walsh |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S. Date: 2003-02-07 |
Journal Detail:
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Title: The Journal of biological chemistry Volume: 278 ISSN: 0021-9258 ISO Abbreviation: J. Biol. Chem. Publication Date: 2003 Apr |
Date Detail:
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Created Date: 2003-04-21 Completed Date: 2003-07-16 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 2985121R Medline TA: J Biol Chem Country: United States |
Other Details:
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Languages: eng Pagination: 15185-91 Citation Subset: IM |
Affiliation:
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Molecular Cardiology, Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts 02118, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cadherins / genetics Cell Line Chemotaxis, Leukocyte Endothelium, Vascular / metabolism* Fas Ligand Protein Heart / physiopathology Hemodynamics Membrane Glycoproteins / biosynthesis, genetics, physiology* Mice Mice, Transgenic Myocardial Ischemia / pathology Myocardial Reperfusion Injury / pathology, prevention & control* Neutrophils Organ Size Promoter Regions, Genetic |
| Grant Support | |
ID/Acronym/Agency:
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AG-15052/AG/NIA NIH HHS; AG-17241/AG/NIA NIH HHS; AR40197/AR/NIAMS NIH HHS; DK43785/DK/NIDDK NIH HHS; HD-23681/HD/NICHD NIH HHS; HL-66957/HL/NHLBI NIH HHS; HL60849/HL/NHLBI NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Cadherins; 0/FASLG protein, human; 0/Fas Ligand Protein; 0/Fasl protein, mouse; 0/Membrane Glycoproteins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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