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Protective effects of prostaglandin E1 on human umbilical vein endothelial cell injury induced by hydrogen peroxide.

Abstract：

AIM:To investigate the protective effects of prostaglandin E(1) (PGE(1)) against H(2)O(2)-induced oxidative damage on human umbilical vein endothelial cells (HUVECs). METHODS:HUVECs were pretreated with PGE(1) (0.25, 0.50, and 1.00 micromol/L) for 24 h and exposed to H(2)O(2) (200 micromol/L) for 12 h, and cell viability was measured by the MTT assay. LDH, NO, SOD, GSH-Px, MDA, ROS, and apoptotic percentage were determined. eNOS expression was measured by Western blotting and real-time PCR. RESULTS:PGE(1) (0.25-1.00 micromol/L) was able to markedly restore the viability of HUVECs under oxidative stress, and scavenged intracellular reactive oxygen species induced by H(2)O(2). PGE(1) also suppressed the production of lipid peroxides, such as MDA, restored the activities of endogenous antioxidants including SOD and GSH-Px, and inhibited cell apoptosis. In addition, PGE(1) significantly increased NO content, eNOS protein, and mRNA expression. CONCLUSION:PGE(1) effectively protected endothelial cells against oxidative stress induced by H(2)O(2), an activity that might depend on the up-regulation of NO expression.

journal_name

Acta Pharmacol Sin

journal_title

Acta pharmacologica Sinica

authors

Fang WT,Li HJ,Zhou LS

doi

10.1038/aps.2010.23

subject

Has Abstract

pub_date

2010-04-01 00:00:00

pages

485-92

issue

4

eissn

1671-4083

issn

1745-7254

pii

aps201023

journal_volume

31

pub_type

杂志文章

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