Current concepts on Pseudomonas aeruginosa interaction with human airway epithelium

Pseudomonas aeruginosa is a major, but opportunistic, respiratory pathogen, which rarely infects healthy individuals, mainly due to the barrier effect of the human airway epithelium (HAE). This review explores the interaction of P. aeruginosa with HAE and the progression of the infection. The basola...

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Main Authors: Anaëlle Muggeo, Christelle Coraux, Thomas Guillard
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-03-01
Series:PLoS Pathogens
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10062669/?tool=EBI
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author Anaëlle Muggeo
Christelle Coraux
Thomas Guillard
author_facet Anaëlle Muggeo
Christelle Coraux
Thomas Guillard
author_sort Anaëlle Muggeo
collection DOAJ
description Pseudomonas aeruginosa is a major, but opportunistic, respiratory pathogen, which rarely infects healthy individuals, mainly due to the barrier effect of the human airway epithelium (HAE). This review explores the interaction of P. aeruginosa with HAE and the progression of the infection. The basolateral part of the epithelium, which includes the basolateral membrane of the epithelial cells and the basement membrane, is inaccessible in normal tight epithelia with intact junctions. We highlight how P. aeruginosa exploits weaknesses in the HAE barrier to gain access to the basolateral part of the epithelium. This access is crucial to initiate respiratory infection and is mainly observed in the injured epithelium, in repairing or chronically remodeled epithelium, and during extrusion of senescent cells or cell multiplication during normal epithelium renewal. The subsequent adhesion of the bacteria and cytotoxic action of virulence factors, including the toxins delivered by the type 3 secretion system (T3SS), lead to retractions and cell death. Eventually, P. aeruginosa progressively reaches the basement membrane and propagates radially through the basal part of the epithelium to disseminate using twitching and flagellar motility.
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spelling doaj.art-751ca769eef3434db87a4d637016dfcd2023-04-05T05:30:52ZengPublic Library of Science (PLoS)PLoS Pathogens1553-73661553-73742023-03-01193Current concepts on Pseudomonas aeruginosa interaction with human airway epitheliumAnaëlle MuggeoChristelle CorauxThomas GuillardPseudomonas aeruginosa is a major, but opportunistic, respiratory pathogen, which rarely infects healthy individuals, mainly due to the barrier effect of the human airway epithelium (HAE). This review explores the interaction of P. aeruginosa with HAE and the progression of the infection. The basolateral part of the epithelium, which includes the basolateral membrane of the epithelial cells and the basement membrane, is inaccessible in normal tight epithelia with intact junctions. We highlight how P. aeruginosa exploits weaknesses in the HAE barrier to gain access to the basolateral part of the epithelium. This access is crucial to initiate respiratory infection and is mainly observed in the injured epithelium, in repairing or chronically remodeled epithelium, and during extrusion of senescent cells or cell multiplication during normal epithelium renewal. The subsequent adhesion of the bacteria and cytotoxic action of virulence factors, including the toxins delivered by the type 3 secretion system (T3SS), lead to retractions and cell death. Eventually, P. aeruginosa progressively reaches the basement membrane and propagates radially through the basal part of the epithelium to disseminate using twitching and flagellar motility.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10062669/?tool=EBI
spellingShingle Anaëlle Muggeo
Christelle Coraux
Thomas Guillard
Current concepts on Pseudomonas aeruginosa interaction with human airway epithelium
PLoS Pathogens
title Current concepts on Pseudomonas aeruginosa interaction with human airway epithelium
title_full Current concepts on Pseudomonas aeruginosa interaction with human airway epithelium
title_fullStr Current concepts on Pseudomonas aeruginosa interaction with human airway epithelium
title_full_unstemmed Current concepts on Pseudomonas aeruginosa interaction with human airway epithelium
title_short Current concepts on Pseudomonas aeruginosa interaction with human airway epithelium
title_sort current concepts on pseudomonas aeruginosa interaction with human airway epithelium
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10062669/?tool=EBI
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AT thomasguillard currentconceptsonpseudomonasaeruginosainteractionwithhumanairwayepithelium