Commensal Neisseria cinerea impairs Neisseria meningitidis microcolony development and reduces pathogen colonisation of epithelial cells.

It is increasingly being recognised that the interplay between commensal and pathogenic bacteria can dictate the outcome of infection. Consequently, there is a need to understand how commensals interact with their human host and influence pathogen behaviour at epithelial surfaces. Neisseria meningit...

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Main Authors: Rafael Custodio, Errin Johnson, Guangyu Liu, Christoph M Tang, Rachel M Exley
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2020-03-01
Series:PLoS Pathogens
Online Access:https://doi.org/10.1371/journal.ppat.1008372
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author Rafael Custodio
Errin Johnson
Guangyu Liu
Christoph M Tang
Rachel M Exley
author_facet Rafael Custodio
Errin Johnson
Guangyu Liu
Christoph M Tang
Rachel M Exley
author_sort Rafael Custodio
collection DOAJ
description It is increasingly being recognised that the interplay between commensal and pathogenic bacteria can dictate the outcome of infection. Consequently, there is a need to understand how commensals interact with their human host and influence pathogen behaviour at epithelial surfaces. Neisseria meningitidis, a leading cause of sepsis and meningitis, exclusively colonises the human nasopharynx and shares this niche with several other Neisseria species, including the commensal Neisseria cinerea. Here, we demonstrate that during adhesion to human epithelial cells N. cinerea co-localises with molecules that are also recruited by the meningococcus, and show that, similar to N. meningitidis, N. cinerea forms dynamic microcolonies on the cell surface in a Type four pilus (Tfp) dependent manner. Finally, we demonstrate that N. cinerea colocalises with N. meningitidis on the epithelial cell surface, limits the size and motility of meningococcal microcolonies, and impairs the effective colonisation of epithelial cells by the pathogen. Our data establish that commensal Neisseria can mimic and affect the behaviour of a pathogen on epithelial cell surfaces.
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spelling doaj.art-3c5f8ce28d814eac934e4a4d11f68d782022-12-21T22:39:21ZengPublic Library of Science (PLoS)PLoS Pathogens1553-73661553-73742020-03-01163e100837210.1371/journal.ppat.1008372Commensal Neisseria cinerea impairs Neisseria meningitidis microcolony development and reduces pathogen colonisation of epithelial cells.Rafael CustodioErrin JohnsonGuangyu LiuChristoph M TangRachel M ExleyIt is increasingly being recognised that the interplay between commensal and pathogenic bacteria can dictate the outcome of infection. Consequently, there is a need to understand how commensals interact with their human host and influence pathogen behaviour at epithelial surfaces. Neisseria meningitidis, a leading cause of sepsis and meningitis, exclusively colonises the human nasopharynx and shares this niche with several other Neisseria species, including the commensal Neisseria cinerea. Here, we demonstrate that during adhesion to human epithelial cells N. cinerea co-localises with molecules that are also recruited by the meningococcus, and show that, similar to N. meningitidis, N. cinerea forms dynamic microcolonies on the cell surface in a Type four pilus (Tfp) dependent manner. Finally, we demonstrate that N. cinerea colocalises with N. meningitidis on the epithelial cell surface, limits the size and motility of meningococcal microcolonies, and impairs the effective colonisation of epithelial cells by the pathogen. Our data establish that commensal Neisseria can mimic and affect the behaviour of a pathogen on epithelial cell surfaces.https://doi.org/10.1371/journal.ppat.1008372
spellingShingle Rafael Custodio
Errin Johnson
Guangyu Liu
Christoph M Tang
Rachel M Exley
Commensal Neisseria cinerea impairs Neisseria meningitidis microcolony development and reduces pathogen colonisation of epithelial cells.
PLoS Pathogens
title Commensal Neisseria cinerea impairs Neisseria meningitidis microcolony development and reduces pathogen colonisation of epithelial cells.
title_full Commensal Neisseria cinerea impairs Neisseria meningitidis microcolony development and reduces pathogen colonisation of epithelial cells.
title_fullStr Commensal Neisseria cinerea impairs Neisseria meningitidis microcolony development and reduces pathogen colonisation of epithelial cells.
title_full_unstemmed Commensal Neisseria cinerea impairs Neisseria meningitidis microcolony development and reduces pathogen colonisation of epithelial cells.
title_short Commensal Neisseria cinerea impairs Neisseria meningitidis microcolony development and reduces pathogen colonisation of epithelial cells.
title_sort commensal neisseria cinerea impairs neisseria meningitidis microcolony development and reduces pathogen colonisation of epithelial cells
url https://doi.org/10.1371/journal.ppat.1008372
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