期刊
INFLAMMATORY BOWEL DISEASES
卷 27, 期 1, 页码 134-144出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/ibd/izaa095
关键词
citrullination; inflammatory bowel disease; neutrophil extracellular traps
Citrullination is a posttranslational modification of proteins that has been linked to various autoimmune disorders, particularly in inflammatory and fibrotic contexts. Further research is needed to investigate the role of citrullination in the gut and its potential therapeutic targeting.
Citrullination is a posttranslational modification of proteins mediated by a specific family of enzymes called peptidylarginine deiminases (PAD). Dysregulation of these enzymes is involved in the etiology of various diseases, from cancer to autoimmune disorders. In inflammatory bowel disease (IBD), data for a role of citrullination in the disease process are starting to accumulate at different experimental levels including gene expression analyses, RNA, and protein quantifications. Most data have been generated in ulcerative colitis, but data in Crohn disease are lacking so far. In addition, the citrullination of histones is the fundamental process promoting inflammation through the formation of neutrophil extracellular traps (NETs). Interestingly, NETs have also been shown to activate fibroblasts into myofibroblasts in fibrotic interstitial lung disease. Therefore, citrullination merits more thorough study in the bowel to determine its role in driving disease complications such as fibrosis. In this review we describe the process of citrullination and the different players in this pathway, the role of citrullination in autoimmunity with a special focus on IBD, the emerging role for citrullination and NETs in triggering fibrosis, and, finally, how this process could be therapeutically targeted. Citrullination is a posttranslational modification of proteins that has been linked to many autoimmune disorders, in both inflammatory and fibrotic contexts. This review describes the findings in the field of inflammatory bowel disease pathophysiology and speculates on potential future implications.
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