Efficacy of keratinocyte growth factor-2 in dextran sulfate sodium-induced murine colitis.
The purpose of this study was to determine the efficacy of a novel human protein, keratinocyte growth factor-2 ( KGF-2), in a model of murine colitis induced by ad libitum exposure to a 4% solution of dextran sulfate sodium (DSS) in the drinking water. Initial evaluation of KGF-2 was based on its ability to reduce weight loss, stool score, and histological score in mice exposed to DSS for 7 days. When KGF-2 (0.1-10.0 mg/kg i.p. or s.c.) was injected daily into DSS-treated mice from day 0 to 7, it significantly reduced all three parameters in a dose-response fashion, with a minimum effective dose of between 1 and 3 mg/kg. When KGF-2 was given therapeutically, starting 4 days after initiation of the 7-day DSS treatment, the 3- but not the 0.5-mg/kg dose significantly enhanced weight recovery after discontinuation of DSS treatment. When DSS treatment was prolonged beyond the normal 7 days, therapeutic intervention on day 2 or 4 also significantly reduced mortality, weight loss, and stool score at the 1- and 3-mg/kg dose. Therapeutic treatment also resulted in reduction of colon myloperoxidase levels by more than 50%. These experiments suggest that KGF-2 may be clinically useful in the treatment of inflammatory bowel diseases such as ulcerative colitis and Crohn's disease.[1]References
- Efficacy of keratinocyte growth factor-2 in dextran sulfate sodium-induced murine colitis. Miceli, R., Hubert, M., Santiago, G., Yao, D.L., Coleman, T.A., Huddleston, K.A., Connolly, K. J. Pharmacol. Exp. Ther. (1999) [Pubmed]
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