Fusobacterium spp. target human CEACAM1 via the trimeric autotransporter adhesin CbpF

Neisseria meningitidis, Haemophilus influenzae, and Moraxella catarrhalis are pathogenic bacteria adapted to reside on human respiratory mucosal epithelia. One common feature of these species is their ability to target members of the carcinoembryonic antigen-related cell adhesion molecule (CEACAM) f...

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Main Authors: Matthew L. Brewer, David Dymock, R. Leo Brady, Bernhard B. Singer, Mumtaz Virji, Darryl J. Hill
Format: Article
Language:English
Published: Taylor & Francis Group 2019-01-01
Series:Journal of Oral Microbiology
Subjects:
Online Access:http://dx.doi.org/10.1080/20002297.2018.1565043
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author Matthew L. Brewer
David Dymock
R. Leo Brady
Bernhard B. Singer
Mumtaz Virji
Darryl J. Hill
author_facet Matthew L. Brewer
David Dymock
R. Leo Brady
Bernhard B. Singer
Mumtaz Virji
Darryl J. Hill
author_sort Matthew L. Brewer
collection DOAJ
description Neisseria meningitidis, Haemophilus influenzae, and Moraxella catarrhalis are pathogenic bacteria adapted to reside on human respiratory mucosal epithelia. One common feature of these species is their ability to target members of the carcinoembryonic antigen-related cell adhesion molecule (CEACAM) family, especially CEACAM1, which is achieved via structurally distinct ligands expressed by each species. Beside respiratory epithelial cells, cells at the dentogingival junction express high levels of CEACAM1. It is possible that bacterial species resident within the oral cavity also utilise CEACAM1 for colonisation and invasion of gingival tissues. From a screen of 59 isolates from the human oral cavity representing 49 bacterial species, we identified strains from Fusobacterium bound to CEACAM1. Of the Fusobacterium species tested, the CEACAM1-binding property was exhibited by F. nucleatum (Fn) and F. vincentii (Fv) but not F. polymorphum (Fp) or F. animalis (Fa) strains tested. These studies identified that CEACAM adhesion was mediated using a trimeric autotransporter adhesin (TAA) for which no function has thus far been defined. We therefore propose the name CEACAM binding protein of Fusobacterium (CbpF). CbpF was identified to be present in the majority of unspeciated Fusobacterium isolates confirming a subset of Fusobacterium spp. are able to target human CEACAM1.
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spelling doaj.art-7f49ede41c7144dab76ae536caa2eb742022-12-22T01:56:43ZengTaylor & Francis GroupJournal of Oral Microbiology2000-22972019-01-0111110.1080/20002297.2018.15650431565043Fusobacterium spp. target human CEACAM1 via the trimeric autotransporter adhesin CbpFMatthew L. Brewer0David Dymock1R. Leo Brady2Bernhard B. Singer3Mumtaz Virji4Darryl J. Hill5University of BristolUniversity of BristolUniversity of BristolUniversitätsklinikum EssenUniversity of BristolUniversity of BristolNeisseria meningitidis, Haemophilus influenzae, and Moraxella catarrhalis are pathogenic bacteria adapted to reside on human respiratory mucosal epithelia. One common feature of these species is their ability to target members of the carcinoembryonic antigen-related cell adhesion molecule (CEACAM) family, especially CEACAM1, which is achieved via structurally distinct ligands expressed by each species. Beside respiratory epithelial cells, cells at the dentogingival junction express high levels of CEACAM1. It is possible that bacterial species resident within the oral cavity also utilise CEACAM1 for colonisation and invasion of gingival tissues. From a screen of 59 isolates from the human oral cavity representing 49 bacterial species, we identified strains from Fusobacterium bound to CEACAM1. Of the Fusobacterium species tested, the CEACAM1-binding property was exhibited by F. nucleatum (Fn) and F. vincentii (Fv) but not F. polymorphum (Fp) or F. animalis (Fa) strains tested. These studies identified that CEACAM adhesion was mediated using a trimeric autotransporter adhesin (TAA) for which no function has thus far been defined. We therefore propose the name CEACAM binding protein of Fusobacterium (CbpF). CbpF was identified to be present in the majority of unspeciated Fusobacterium isolates confirming a subset of Fusobacterium spp. are able to target human CEACAM1.http://dx.doi.org/10.1080/20002297.2018.1565043fusobacteriumceacam1ceahost–pathogen interactionadhesionbindingtrimeric autotransporter adhesintaatype v secretionfusobacterium nucleatum
spellingShingle Matthew L. Brewer
David Dymock
R. Leo Brady
Bernhard B. Singer
Mumtaz Virji
Darryl J. Hill
Fusobacterium spp. target human CEACAM1 via the trimeric autotransporter adhesin CbpF
Journal of Oral Microbiology
fusobacterium
ceacam1
cea
host–pathogen interaction
adhesion
binding
trimeric autotransporter adhesin
taa
type v secretion
fusobacterium nucleatum
title Fusobacterium spp. target human CEACAM1 via the trimeric autotransporter adhesin CbpF
title_full Fusobacterium spp. target human CEACAM1 via the trimeric autotransporter adhesin CbpF
title_fullStr Fusobacterium spp. target human CEACAM1 via the trimeric autotransporter adhesin CbpF
title_full_unstemmed Fusobacterium spp. target human CEACAM1 via the trimeric autotransporter adhesin CbpF
title_short Fusobacterium spp. target human CEACAM1 via the trimeric autotransporter adhesin CbpF
title_sort fusobacterium spp target human ceacam1 via the trimeric autotransporter adhesin cbpf
topic fusobacterium
ceacam1
cea
host–pathogen interaction
adhesion
binding
trimeric autotransporter adhesin
taa
type v secretion
fusobacterium nucleatum
url http://dx.doi.org/10.1080/20002297.2018.1565043
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