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Chronic Salmonella Infection Induced Intestinal Fibrosis
Published on: September 22, 2019
Transglutaminase 2 in chronic inflammation and fibrosis - a potential novel therapy for stricturing Crohn's disease
Jyotsna Chandra1, Gail A West1, Yan Wang1
1Department of Inflammation and Immunity, Cleveland Clinic Research, Cleveland Clinic Foundation, Cleveland, OH, USA.
Introduction:
In inflammatory bowel diseases (IBD), human intestinal myofibroblasts (HIMF) gets activated due to chronic inflammation and start accumulating excessive extracellular matrix (ECM). ECM drives the significant clinical problem of intestinal fibrosis and stricture formation in Crohn's disease (CD) and Ulcerative colitis (UC) patients that require surgical intervention in a large group of the population.
Areas Covered:
In this review, we delineate the role of transglutaminase 2 (TG2), a matrix bound, calcium (Ca) dependent enzyme, as an important effector in the pathogenesis of chronic inflammatory diseases. We discuss the role of TG2 in fibrotic diseases with a focus on intestinal fibrosis and TG2 as a potential target for therapy of stricturing CD. This review additionally covers the progress in our mechanistic understanding of TG2 as a marker and driver for intestinal fibrosis and stricture formation in IBD patients.
Expert Opinion:
TG2 may play a central role in promoting inflammation independent progression of fibrosis, potentially explaining the lack of efficacy of traditional anti-inflammatory drugs in fibrotic diseases. The anti-fibrotic potential of TG2 specific inhibitors in stricturing Crohn's disease are just starting to be explored. Further investigations are needed to identify novel mechanisms for TG2 specific inhibitors in the intestine.
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