MiR‐155 promotes colitis‐associated intestinal fibrosis by targeting HBP1/Wnt/β‐catenin signalling pathway. Issue 10 (26th March 2021)

• Record Type: Journal Article
• Authors: Li, Nianshuang; Ouyang, Yaobin; Xu, Xinbo; Yuan, Zhenxiang; Liu, Chunquan; Zhu, Zhenhua
• Is Part Of: Journal of cellular and molecular medicine. Volume 25:Issue 10(2021)
• Page Start: 4765
• Page End: 4775
• Publication Date: 2021-03-26
• Subjects: Crohn's disease -- HBP1 -- intestinal fibrosis -- miR‐155 -- Wnt/β‐catenin signalling pathway; Cytology; Medicine; Molecular Biology; Cytologie -- Périodiques; Médecine -- Périodiques; Biologie moléculaire -- Périodiques; Cytology -- Periodicals; Medicine -- Periodicals; Molecular biology -- Periodicals; 611.01805
• DOI: 10.1111/jcmm.16445
• Languages: English
• ISSNs: 1582-1838

Abstract

Abstract: Intestinal fibrosis is the most common complication of Crohn's disease (CD) that is one major disorder of inflammatory bowel disease (IBD), but the precise mechanism remains unclear. MiR‐155 has been involved in fibrotic diseases. Here, we determined the role of miR‐155 in regulating intestinal fibrosis. MiR‐155 levels were significantly up‐regulated in CD patients with intestinal stricture CD. The overexpression of miR‐155 significantly aggravated TNBS‐induced CD‐associated intestinal fibrosis. Mechanistically, we identified that HBP1, a negative regulator of the Wnt/β‐catenin signalling pathway, is a direct target of miR‐155. Moreover, in vitro and in vivo experiments suggested that the miR‐155/HBP1 axis activates Wnt/β‐catenin signalling pathway to induce intestinal fibrosis. Taken together, we demonstrated that miR‐155 directly targets HBP1 to induce CD‐associated intestinal fibrosis via Wnt/β‐catenin signalling pathway.