单位:[1]Univ Hosp Geneva, Dept Surg, Div Investigat Surg, Div Digest & Transplant Surg,Dept Surg, Geneva, Switzerland[2]China Japan Friendship Hosp, Inst Clin Med Sci, Beijing 100029, Peoples R China
Hepatic ischemia-reperfusion injury is an important cause of graft dysfunction after liver transplantation. Liver sinusoidal endothelial cells (LSECs) are particularly sensitive to ischemia-reperfusion injury and undergo apoptosis. This study investigates the protective role of PGE(1) on apoptosis of LSEC during by, poxia-reoxygenation in vitro. Hypothermia-hypoxia followed by reoxygenation triggered LSEC apoptosis, and prostaglandin PGE(1), protected LSEC from apoptosis in a dose-dependent manner. The release of matrix metalloproteinases (MMPs) and nitric oxide (NO) by LSECs were increased after hypoxia reoxygenation. Both the MNIP inhibitor BB3103 and the NO inhibitor LNANI effectively decreased LSEC apoptosis, suggesting a separate role of MMPs and NO in hypoxia-reoxygenation-induced LSEC apoptosis. PGE(1) down-regulated NO production by inhibiting the expression of inducible NO synthase in LSEC. PGE(1) also inhibited MMP-2 release from LSEC during hypoxia reoxygenation. These results indicate that the protection of LSECs from apoptosis by PGE(1) in hepatic ischemia-reperfusion injury is mediated by inhibiting inducible NO synthase and MNIP release. (C) 2002 Elsevier Science (USA).
Yang H,Majno P,Morel P,et al.Prostaglandin E-1 protects human liver sinusoidal endothelial cell from apoptosis induced by hypoxia reoxygenation[J].MICROVASCULAR RESEARCH.2002,64(1):94-103.doi:10.1006/mvre.2002.2404.
APA:
Yang, H,Majno, P,Morel, P,Toso, C,Triponez, F...&Lou, JN.(2002).Prostaglandin E-1 protects human liver sinusoidal endothelial cell from apoptosis induced by hypoxia reoxygenation.MICROVASCULAR RESEARCH,64,(1)
MLA:
Yang, H,et al."Prostaglandin E-1 protects human liver sinusoidal endothelial cell from apoptosis induced by hypoxia reoxygenation".MICROVASCULAR RESEARCH 64..1(2002):94-103