Innate Immunity and Microbes: Conversations with the Gut Leading to Intestinal Tissue Repair and Fibrosis

ISSN: 1875-614X (Online)
ISSN: 1871-5230 (Print)

Volume 16, 3 Issues, 2017

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Anti-Inflammatory & Anti-Allergy Agents in Medicinal Chemistry

Formerly: Current Medicinal Chemistry - Anti-Inflammatory and Anti-Allergy Agents

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Claudiu T. Supuran
Neurofarba Department
University of Florence

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Innate Immunity and Microbes: Conversations with the Gut Leading to Intestinal Tissue Repair and Fibrosis

Anti-Inflammatory & Anti-Allergy Agents in Medicinal Chemistry, 8(3): 228-247.

Author(s): Deanna L. Gibson, Marinieve Montero, Natasha R. Ryz and Bruce A Vallance.

Affiliation: ACB, Rm. K4-188, 4480 Oak Street, BC's Children's Hospital, Vancouver, British Columbia, Canada V6H 3V4.


Inflammatory bowel diseases (IBD) are thought to occur because of impaired mucosal integrity that allows enteric bacteria to leak out of the intestine, triggering maladaptive intestinal inflammation. While the exact pathogenesis of IBD is unclear, studies have recently demonstrated that bacterial activation of innate receptors not only causes inflammation, but may also play an important role in modulating intestinal epithelial barrier function, as well as intestinal epithelial cell proliferation and repair. These mucosal homeostatic mechanisms are essential in limiting as well as repairing mucosal damage. Therefore bacterial activation of the innate immune system can have both inflammatory as well as protective healing roles in the intestine. Strikingly, these findings suggest that dysregulation of these processes could be responsible for both the barrier dysfunction as well as the heightened inflammatory tone that characterize IBD. In this review we explore the current state of knowledge underlying this novel role for innate immunity in the gastrointestinal tract, and discuss the strengths and weaknesses of the chemical and infectious models used in these studies. In addition, we discuss preliminary evidence that exaggerated microbial activation of the innate immune system may cause the fibrotic responses that develop in some patients with IBD.


TLR, colitis, tissue repair, Citrobacter rodentium, IBD, fibrosis, dextran sodium sulfate.

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Article Details

Volume: 8
Issue Number: 3
First Page: 228
Last Page: 247
Page Count: 20
DOI: 10.2174/187152309789152002
Price: $58
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