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    Serine proteases have been long recognized to coordinate many physiological processes and play key roles in regulating the inflammatory response. Accordingly, their dysregulation has been regularly associated with several inflammatory disorders and suggested as a central mechanism in the pathophysiology of digestive inflammation. So far, studies addressing the proteolytic homeostasis in the gut have mainly focused on host serine proteases as candidates of interest, while largely ignoring the potential contribution of their bacterial counterparts. The human gut microbiota comprises a complex ecosystem that contributes to host health and disease. Yet, our understanding of microbially produced serine proteases and investigation of whether they are causally linked to IBD is still in its infancy. In this review, we highlight recent advances in the emerging roles of host and bacterial serine proteases in digestive inflammation. We also discuss the application of available tools in the gut to monitor disease-related serine proteases. An exhaustive representation and understanding of such functional potential would help in closing existing gaps in mechanistic knowledge. © 2020 Federation of American Societies for Experimental Biology.


    Aicha Kriaa, Amin Jablaoui, Héla Mkaouar, Nizar Akermi, Emmanuelle Maguin, Moez Rhimi. Serine proteases at the cutting edge of IBD: Focus on gastrointestinal inflammation. FASEB journal : official publication of the Federation of American Societies for Experimental Biology. 2020 Jun;34(6):7270-7282

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    PMID: 32307770

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