Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/129677
Citations
Scopus Web of Science® Altmetric
?
?
Type: Journal article
Title: Identification of a quorum sensing-dependent communication pathway mediating bacteria-gut-brain cross talk
Author: Uhlig, F.
Grundy, L.
Garcia-Caraballo, S.
Brierley, S.M.
Foster, S.J.
Grundy, D.
Citation: iScience, 2020; 23(11):101695-1-101695-16
Publisher: Elsevier
Issue Date: 2020
ISSN: 2589-0042
2589-0042
Statement of
Responsibility: 
Friederike Uhlig, Luke Grundy, Sonia Garcia-Caraballo, Stuart M. Brierley, Simon J. Foster, and David Grundy
Abstract: Despite recently established contributions of the intestinal microbiome to human health and disease, our understanding of bacteria-host communication pathways with regard to the gut-brain axis remains limited. Here we provide evidence that intestinal neurons are able to “sense” bacteria independently of the host immune system. Using supernatants from cultures of the opportunistic pathogen Staphylococcus aureus (S. aureus) we demonstrate the release of mediators with neuromodulatory properties at high population density. These mediators induced a biphasic response in extrinsic sensory afferent nerves, increased membrane permeability in cultured sensory neurons, and altered intestinal motility and secretion. Genetic manipulation of S. aureus revealed two key quorum sensing-regulated classes of pore forming toxins that mediate excitation and inhibition of extrinsic sensory nerves, respectively. As such, bacterial mediators have the potential to directly modulate gut-brain communication to influence intestinal symptoms and reflex function in vivo, contributing to homeostatic, behavioral, and sensory consequences of infection.
Keywords: Microbiology
Neuroscience
Rights: © 2020 The Authors. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
DOI: 10.1016/j.isci.2020.101695
Grant ID: http://purl.org/au-research/grants/nhmrc/1126378
http://purl.org/au-research/grants/nhmrc/1140297
http://purl.org/au-research/grants/nhmrc/1139366
Published version: http://dx.doi.org/10.1016/j.isci.2020.101695
Appears in Collections:Aurora harvest 8
Medicine publications

Files in This Item:
File Description SizeFormat 
hdl_129677.pdfPublished Version2.94 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.