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Gut. 2012 Nov;61(11):1610-8. Epub 2011 Sep 7.

Bacterial proteases in IBD and IBS.

Author information

1
Biofunctionality, Technische Universit√§t M√ľnchen, Gregor-Mendel-Strasse 2, Freising-Weihenstephan, Germany.

Abstract

Proteases play a decisive role in health and disease. They fulfil diverse functions and have been associated with the pathology of gastrointestinal disorders such as inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS). The current knowledge focuses on host-derived proteases including matrix metalloproteinases, various serine proteases and cathepsins. The possible contribution of bacterial proteases has been largely ignored in the pathogenesis of IBD and IBS, although there is increasing evidence, especially demonstrated for proteases from pathogenic bacteria. The underlying mechanisms extend to proteases from commensal bacteria which may be relevant for disease susceptibility. The intestinal microbiota and its proteolytic capacity exhibit the potential to contribute to the pathogenesis of IBD and IBS. This review highlights the relevance of host- and bacteria-derived proteases and their signalling mechanisms.

Republished in

PMID:
21900548
DOI:
10.1136/gutjnl-2011-300775
[Indexed for MEDLINE]

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