Journal
JOURNAL OF CROHNS & COLITIS
Volume 5, Issue 6, Pages 520-524Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.crohns.2011.05.007
Keywords
Micro-RNAs; IBD; Crohn's disease; Ulcerative colitis
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Not fully defined pathophysiologic mechanisms of inflammatory bowel disease (IBD) involve an array of genetic, epigenetic, infectious, physiological and immunological factors. Nowadays, an inadequate activation of the innate immune system to a luminal factor occurring in genetically predisposed subjects is the most widely accepted today. Micro-autoimmune diseases, a group of small, single-stranded, non-coding RNA molecules act as potent negative gene regulators. Beyond cancer and various autoimmune diseases, their impact on IBD has recently been the focus of research. Differential expression of various micro-RNAs has been documented in active and inactive ulcerative colitis, while micro-RNA profile appears to differ between ileal and colonic Crohn's disease. Except for tissue samples, attempts have been made to estimate similar differences at patients blood samples. Apart from offering new directions in related research, these molecules arise as useful diagnostic tools and potential therapeutic targets. This review focuses on micro-RNA alterations in IBD and their potential implication on immunologic deregulation. (C) 2011 European Crohn's and Colitis Organisation. Published by Elsevier B.V. All rights reserved.
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