, Volume 44, Issue 4, pp 845-851

Effect of Icatibant, a Bradykinin B2 Receptor Antagonist, on the Development of Experimental Ulcerative Colitis in Mice

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Abstract

Dextran sulfate sodium-induced colitis in micehas been recognized as a model for human ulcerativecolitis. Using this model, we carried out a study on thepreventive effect of Icatibant, a bradykinin B receptor antagonist previously called HOE 140,on the development of colitis. Subcutaneousadministration of Icatibant (0.3 or 1.5 mg/kg)significantly suppressed shortening of the largeintestine and worsening of the general health. Oraladministration of Icatibant (50 mg/kg) significantlysuppressed shortening of the large intestine, the onsetof diarrhea, and worsening of the general health. Inaddition, the oral treatment significantly inhibited thedevelopment of colitis that was observedhistopathologically. These results indicate a role of BKin the development of dextran sulfate sodiuminducedcolitis in mice, and suggest that BK could be importantin human ulcerative colitis.