FHA-mediated cell-substrate and cell-cell adhesions are critical for Bordetella pertussis biofilm formation on abiotic surfaces and in the mouse nose and the trachea
Bordetella spp. form biofilms in the mouse nasopharynx, thereby providing a potential mechanism for establishing chronic infections in humans and animals. Filamentous hemagglutinin (FHA) is a major virulence factor of B. pertussis, the causative agent of the highly transmissible and infectious disea...
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| Autores principales: | , , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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2011
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/29564 http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0028811 |
| Aporte de: |
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I19-R120-10915-29564 |
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dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Exactas Química Bordetella Hemaglutininas Biofilmes |
| spellingShingle |
Ciencias Exactas Química Bordetella Hemaglutininas Biofilmes Serra, Diego Omar Conover, Matt S. Arnal, Laura Sloan, Gina Parise Rodríguez, María Eugenia Yantorno, Osvaldo Miguel Deora, Rajendar FHA-mediated cell-substrate and cell-cell adhesions are critical for Bordetella pertussis biofilm formation on abiotic surfaces and in the mouse nose and the trachea |
| topic_facet |
Ciencias Exactas Química Bordetella Hemaglutininas Biofilmes |
| description |
Bordetella spp. form biofilms in the mouse nasopharynx, thereby providing a potential mechanism for establishing chronic infections in humans and animals. Filamentous hemagglutinin (FHA) is a major virulence factor of B. pertussis, the causative agent of the highly transmissible and infectious disease, pertussis. In this study, we dissected the role of FHA in the distinct biofilm developmental stages of B. pertussis on abiotic substrates and in the respiratory tract by employing a murine model of respiratory biofilms. Our results show that the lack of FHA reduced attachment and decreased accumulation of biofilm biomass on artificial surfaces. FHA contributes to biofilm development by promoting the formation of microcolonies. Absence of FHA from B. pertussis or antibody-mediated blockade of surface-associated FHA impaired the attachment of bacteria to the biofilm community. Exogenous addition of FHA resulted in a dose-dependent inhibitory effect on bacterial association with the biofilms. Furthermore, we show that FHA is important for the structural integrity of biofilms formed on the mouse nose and trachea. Together, these results strongly support the hypothesis that FHA promotes the formation and maintenance of biofilms by mediating cell-substrate and inter-bacterial adhesions. These discoveries highlight FHA as a key factor in establishing structured biofilm communities in the respiratory tract. © 2011 Serra et al. |
| format |
Articulo Articulo |
| author |
Serra, Diego Omar Conover, Matt S. Arnal, Laura Sloan, Gina Parise Rodríguez, María Eugenia Yantorno, Osvaldo Miguel Deora, Rajendar |
| author_facet |
Serra, Diego Omar Conover, Matt S. Arnal, Laura Sloan, Gina Parise Rodríguez, María Eugenia Yantorno, Osvaldo Miguel Deora, Rajendar |
| author_sort |
Serra, Diego Omar |
| title |
FHA-mediated cell-substrate and cell-cell adhesions are critical for Bordetella pertussis biofilm formation on abiotic surfaces and in the mouse nose and the trachea |
| title_short |
FHA-mediated cell-substrate and cell-cell adhesions are critical for Bordetella pertussis biofilm formation on abiotic surfaces and in the mouse nose and the trachea |
| title_full |
FHA-mediated cell-substrate and cell-cell adhesions are critical for Bordetella pertussis biofilm formation on abiotic surfaces and in the mouse nose and the trachea |
| title_fullStr |
FHA-mediated cell-substrate and cell-cell adhesions are critical for Bordetella pertussis biofilm formation on abiotic surfaces and in the mouse nose and the trachea |
| title_full_unstemmed |
FHA-mediated cell-substrate and cell-cell adhesions are critical for Bordetella pertussis biofilm formation on abiotic surfaces and in the mouse nose and the trachea |
| title_sort |
fha-mediated cell-substrate and cell-cell adhesions are critical for bordetella pertussis biofilm formation on abiotic surfaces and in the mouse nose and the trachea |
| publishDate |
2011 |
| url |
http://sedici.unlp.edu.ar/handle/10915/29564 http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0028811 |
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