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The novel histamine H2 receptor antagonist FRG-8813 prevents delay of wound repair induced by hydrogen peroxide in a rabbit gastric epithelial cell system
Authors:NOBUHIRO SATO  SUMIO WATANABE  XIAN-EN WANG  TARO OSADA  HIROSHI TANAKA  TOMOKO ITATSU  RYUKO MIYATA  KENICHI WATANABE  KENJI SATO  MIKAKO NAKAJIMA  SYUNPEI YAMASHINA  KENICHIRO MATSUZAKI  HIROTO MIWA
Abstract:
Abstract The effects of a novel histamine H2 receptor antagonist (FRG-8813) on the restoration process of gastric epithelial wounds were assessed using an in vitro wound healing model. FRG-8813 (1, 10 mol/L) was added to a complete confluent monolayer cell sheet after artificial wounding. The restoration process was analysed by a time-lapse video system and cell migration, proliferation and apoptosis were assessed. Hydrogen peroxide (1, 3 mmol/L) inhibited restoration after wounding by suppressing cell migration and proliferation and induced epithelial cell apoptosis around the wound. The addition of FRG-8813 abolished the hydrogen peroxide-induced retardation and prevented apoptosis, although FRG-8813 itself did not enhance wound healing. FRG-8813 may act as a radical scavenger as well as having an anti-secretory action and may have favourable effects on peptic ulcer healing.
Keywords:apoptosis  gastric acid  gastric wound healing  hydrogen peroxide mucin  migration  mucous cell  parietal cell  peptic ulcer  proliferation
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