Neutrophil chemoattractant 2β regulates expression of the Reg gene in injured gastric mucosa in rats

Hideaki Kazumori, Shunji Ishihara, Eiichi Hoshino, Kousaku Kawashima, Nobuyuki Moriyama, Hiroshi Suetsugu, Hiroshi Sato, Kyoichi Adachi, Ryo Fukuda, Makoto Watanabe, Shin Takasawa, Hiroshi Okamoto, Hirokazu Fukui, Tsutomu Chiba, Yoshikazu Kinoshita

研究成果: Article査読

56 被引用数 (Scopus)

抄録

Background & Aims: Regenerating (Reg) protein has a trophic effect on gastric mucosal cells. We have shown that Reg gene expression is increased in enterochromaffin-like (ECL) cells during the healing of damaged gastric mucosa around mucosal erosion. This study was designed to explore the stimulants of Reg expression during the healing of gastric mucosal damage. Methods: Time course changes of the expression of genes for various proinflammatory cytokines and Reg were investigated after induction of gastric mucosal lesions in rats. The direct effect of proinflammatory cytokines on Reg gene expression and Reg protein production were investigated in vitro using counterflow elutriation-enriched rat ECL cells. CXC receptor 2 (CXCR-2) expression was investigated in ECL cells by reverse-transcription polymerase chain reaction. Reg gene expression was also investigated in rats treated by the neutralizing antibody of cytokine-induced neutrophil chemoattractant (CINC-2β). Results: During healing, the gene expression of several proinflammatory cytokines and Reg was markedly augmented. Among the proinflammatory cytokines, CINC-2β is the only cytokine in which augmented expression preceded the increase of Reg gene expression. In rats treated with CINC-2β neutralizing antibody, the augmentation of Reg gene expression was significantly inhibited. When ECL cells were incubated with these proinflammatory cytokines, CINC-2β dose-dependently increased Reg messenger RNA and Reg protein in ECL cells. CXCR-2 was identified in isolated ECL cells. Conclusions: CINC-2β, expressed in damaged gastric mucosa, stimulates the production of Reg protein in ECL cells via CXCR-2 and may be involved in the accelerated healing of injured gastric mucosa.

本文言語English
ページ(範囲)1610-1622
ページ数13
ジャーナルGastroenterology
119
6
DOI
出版ステータスPublished - 2000
外部発表はい

ASJC Scopus subject areas

  • 肝臓学
  • 消化器病学

フィンガープリント

「Neutrophil chemoattractant 2β regulates expression of the Reg gene in injured gastric mucosa in rats」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル