期刊
INFLAMMATORY BOWEL DISEASES
卷 28, 期 3, 页码 337-349出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/ibd/izab251
关键词
Crohn's disease; cytokines; fibrosis; immunoregulation; myofibroblasts; ulcerative colitis
资金
- National Institutes of Health [DK042191, DK091222, DK055812, DK097948]
- NIH Cleveland Digestive Diseases Research Core Center (DDRCC) Administrative Core
This review describes the cellular and molecular immunological mechanisms of intestinal fibrosis in IBD, with a particular focus on animal models of intestinal fibrosis. Based on this research, potential future targets for antifibrotic therapies for IBD patients can be identified.
Intestinal fibrosis is a late-stage phenotype of inflammatory bowel disease (IBD), which underlies most of the long-term complications and surgical interventions in patients, particularly those with Crohn's disease. Despite these issues, antifibrotic therapies are still scarce, mainly due to the current lack of understanding concerning the pathogenetic mechanisms that mediate fibrogenesis in patients with chronic intestinal inflammation. In the current review, we summarize recent evidence regarding the cellular and molecular factors of innate and adaptive immunity that are considered critical for the initiation and amplification of extracellular matrix deposition and stricture formation. We focus on the role of cytokines by dissecting the pro- vs antifibrotic components of the immune response, while taking into consideration their temporal association to the progressive stages of the natural history of IBD. We critically present evidence from animal models of intestinal fibrosis and analyze inflammation-fibrosis interactions that occur under such experimental scenarios. In addition, we comment on recent findings from large-scale, single-cell profiling of fibrosis-relevant populations in IBD patients. Based on such evidence, we propose future potential targets for antifibrotic therapies to treat patients with IBD. Lay Summary In this review, authors describe the cellular and molecular immunological mechanism(s) of intestinal fibrosis in IBD, with a particular focus on animal models of intestinal fibrosis.
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