C5a causes limited, polymorphonuclear cell-independent, mesenteric ischemia/reperfusion-induced injury

C5 is critical in the development of local mucosal damage and inflammation as well as in the development of remote organ injury after mesenteric ischemia/reperfusion (IR). To define the role of C5a in tissue injury, we treated wild-type mice with a cyclic hexapeptide C5a receptor antagonist (C5aRa)...

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Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 108(2003), 3 vom: 19. Sept., Seite 263-73
1. Verfasser: Fleming, Sherry D (VerfasserIn)
Weitere Verfasser: Mastellos, Dimitrios, Karpel-Massler, Georg, Shea-Donohue, Terez, Lambris, John D, Tsokos, George C
Format: Aufsatz
Sprache:English
Veröffentlicht: 2003
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Comparative Study Journal Article Research Support, U.S. Gov't, Non-P.H.S. Research Support, U.S. Gov't, P.H.S. Antigens, CD Complement C5 Complement Membrane Attack Complex Eicosanoids Receptor, Anaphylatoxin C5a Receptors, Complement mehr... Recombinant Proteins Vascular Cell Adhesion Molecule-1 Integrin alpha4 143198-26-9 Complement C5a 80295-54-1
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245 1 0 |a C5a causes limited, polymorphonuclear cell-independent, mesenteric ischemia/reperfusion-induced injury 
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520 |a C5 is critical in the development of local mucosal damage and inflammation as well as in the development of remote organ injury after mesenteric ischemia/reperfusion (IR). To define the role of C5a in tissue injury, we treated wild-type mice with a cyclic hexapeptide C5a receptor antagonist (C5aRa) and administered recombinant C5a to C5 deficient (C5(-/-)) mice subjected to mesenteric IR. We demonstrate that at 2-h postreperfusion, C5a administered to C5-/- mice during IR induces limited intestinal mucosal injury but failed to cause remote lung injury despite the fact that it upregulated adhesion molecule expression. C5aRa treatment of C5+/+ mice undergoing IR limited local injury and prevented distant organ injury. We conclude that although C5a can trigger certain components of the IR induced injury, other mediators such as C5b-9 and local factors are needed for the complete expression of IR tissue damage 
650 4 |a Comparative Study 
650 4 |a Journal Article 
650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
650 4 |a Research Support, U.S. Gov't, P.H.S. 
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650 7 |a Complement Membrane Attack Complex  |2 NLM 
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650 7 |a Vascular Cell Adhesion Molecule-1  |2 NLM 
650 7 |a Integrin alpha4  |2 NLM 
650 7 |a 143198-26-9  |2 NLM 
650 7 |a Complement C5a  |2 NLM 
650 7 |a 80295-54-1  |2 NLM 
700 1 |a Mastellos, Dimitrios  |e verfasserin  |4 aut 
700 1 |a Karpel-Massler, Georg  |e verfasserin  |4 aut 
700 1 |a Shea-Donohue, Terez  |e verfasserin  |4 aut 
700 1 |a Lambris, John D  |e verfasserin  |4 aut 
700 1 |a Tsokos, George C  |e verfasserin  |4 aut 
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