Effects of prostaglandin E2 on gastric irritant-induced apoptosis.

Abstract:

:We previously reported that various gastric irritants induced both apoptosis and necrosis in cultured gastric mucosal cells. In a continuation of this work, the present study has examined the effects of prostaglandin E2 (PGE2), a cytoprotective factor for gastric mucosa in vivo, on gastric irritant-induced apoptosis and necrosis in vitro. PGE2 inhibited ethanol-induced apoptosis and increased cell viability in a dose-dependent manner in primary cultures of guinea pig gastric mucosal cells. PGE2 also inhibited hydrogen peroxide-induced apoptosis. In contrast, PGE2 showed no cytoprotective effects against ethanol-induced necrosis. Based on these results, we consider that the cytoprotective effects of PGE2 on gastric mucosa in vivo can be partially explained by its inhibitory effect on gastric irritant-induced apoptosis.

journal_name

Dig Dis Sci

authors

Hoshino T,Takano T,Tsutsumi S,Tomisato W,Tsuchiya T,Mizushima T

doi

10.1023/a:1020164000898

subject

Has Abstract

pub_date

2002-10-01 00:00:00

pages

2370-9

issue

10

eissn

0163-2116

issn

1573-2568

journal_volume

47

pub_type

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