Nod-like receptors in intestinal host defense: controlling pathogens, the microbiota, or both?

Abstract:

PURPOSE OF REVIEW:Nod-like receptors (NLRs) are intracellular innate immune sensors of microbes and danger signals that control multiple aspects of inflammatory responses. We review the evidence that highlights the critical importance of NLRs in the host response to intestinal pathogens. Moreover, we discuss the potential roles played by NLRs in the dynamic control of the intestinal microbiota and how commensal microorganisms may affect host susceptibility to enteric bacterial pathogens through interactions with NLRs as well as with invading pathogens. RECENT FINDINGS:Recent studies targeting the intestinal microbiota in the context of NLR deficiencies suggest inherent alterations in bacterial density or abundance may underlie the development of inflammatory diseases. As commensal microorganisms may also affect host susceptibility to enteric bacterial pathogens, NLRs might promote intestinal innate immune defense through mechanisms more complex than previously anticipated. SUMMARY:The inclusion of the intestinal microbiota as a critical parameter in innate immunity represents an exciting new dimension for understanding NLR functioning and the clinical implications for human health.

authors

Robertson SJ,Girardin SE

doi

10.1097/MOG.0b013e32835a68ea

subject

Has Abstract

pub_date

2013-01-01 00:00:00

pages

15-22

issue

1

eissn

0267-1379

issn

1531-7056

journal_volume

29

pub_type

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