CCR2/CCR5 antagonist cenicriviroc reduces colonic inflammation and fibrosis in experimental colitis

Background and Aim Cenicriviroc (CVC) is a CCR2/CCR5 antagonist that has been shown to be effective in the treatment of inflammatory and fibrotic diseases. Our study evaluated its efficacy in colitis. Methods Mouse models of DSS-induced acute and chronic colitis were established. The efficacy of CVC in colitis was assessed by disease activity index (DAI) scores, histological assessment of inflammation and fibrosis, and expression assays of key molecules. In in vitro experiments, HT29 cell line was exposed to TNFα to study inflammatory signaling in intestinal epithelial cells. CCD-18Co colonic myofibroblasts and human primary colonic fibroblasts were activated by TGFβ1 to mimic fibroblast activation. Results In HT29 cells, CVC significantly reduced mRNA expression of CCL5 ( P

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