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  • Title: Rebamipide promotes healing of colonic ulceration through enhanced epithelial restitution.
    Author: Takagi T, Naito Y, Uchiyama K, Okuda T, Mizushima K, Suzuki T, Handa O, Ishikawa T, Yagi N, Kokura S, Ichikawa H, Yoshikawa T.
    Journal: World J Gastroenterol; 2011 Sep 07; 17(33):3802-9. PubMed ID: 21987622.
    Abstract:
    AIM: To investigate the efficacy of rebamipide in a rat model of colitis and restitution of intestinal epithelial cells in vitro. METHODS: Acute colitis was induced with trinitrobenzene sulfonic acid (TNBS) in male Wistar rats. Rats received intrarectal rebamipide treatment daily starting on day 7 and were sacrificed on day 14 after TNBS administration. The distal colon was removed to evaluate the various parameters of inflammation. Moreover, wound healing assays were used to determine the enhanced restitution of rat intestinal epithelial (RIE) cells treated with rebamipide. RESULTS: Intracolonic administration of rebamipide accelerated TNBS-induced ulcer healing. Increases in the wet weight of the colon after TNBS administration were significantly inhibited by rebamipide. The wound assay revealed that rebamipide enhanced the migration of RIE cells through phosphorylation of extracellular signal-regulated kinase (ERK) and activation of Rho kinase. CONCLUSION: Rebamipide enema healed intestinal injury by enhancing restitution of RIE cells, via ERK activation. Rebamipide might be a novel therapeutic approach for inflammatory bowel disease.
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