Cross-talk between neural and immune receptors provides a potential mechanism of homeostatic regulation in the gut mucosa

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Abstract

The relationship between elements of the immune system and the nervous system in the presence of bacteria has been addressed recently. In particular, the sensory vanilloid receptor 1 (transient receptor potential cation channel subfamily V member 1 (TRPV1)) and the neuropeptide calcitonin gene-related peptide (CGRP) have been found to modulate cytokine response to lipopolysaccharide (LPS) independently of adaptive immunity. In this review we discuss mucosal homeostasis in the gastrointestinal tract where bacterial concentration is high. We propose that the Gram-negative bacterial receptor Toll-like receptor 4 (TLR4) can activate TRPV1 via intracellular signaling, and thereby induce the subsequent release of anti-inflammatory CGRP to maintain mucosal homeostasis.

Bibliographical metadata

Original languageEnglish
Pages (from-to)1283-1289
Number of pages6
JournalMucosal Immunology
Volume7
Issue number6
DOIs
Publication statusPublished - 3 Sep 2014

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