Supplementary material for "Interplay Of Virulence Factors and Signaling Molecules: Albumin And Calcium-Mediated Biofilm Regulation In Bordetella bronchiseptia"
- Autores
- Mugni, Sabrina Laura; Ambrosis, Nicolás Martín; O'Toole, George A.; Sisti, Federico; Fernández, Julieta
- Año de publicación
- 2025
- Idioma
- inglés
- Tipo de recurso
- conjunto de datos
- Estado
- versión publicada
- Descripción
- Bordetella bronchiseptica, a respiratory pathogen capable of infecting various mammals, including humans, is associated with chronic infections, contrasting with the acute infections caused by B. pertussis. Both pathogens can form biofilm-like structures in vivo, providing tolerance against environmental stresses. Biofilm formation in B. bronchiseptica is regulated by the BvgAS two-component system, with intermediate concentrations of certain modulators inducing a phase favoring biofilm formation. Recent studies have highlighted the role of cyclic diguanylate monophosphate (c-di-GMP) in this process: elevated c-di-GMP levels stimulate biofilm formation, whereas phosphodiesterase (PDE) activation reduces biofilms. Respiratory secretions, which contain albumin and calcium at higher concentrations than standard growth media, promote an increase in the amount and localization of the adenylate cyclase toxin (AC), an important Bordetella virulence factor. Secreted AC present in the extracellular media or attached to the outer membrane inhibits biofilm formation. Based on these observations, we hypothesized that serum albumin and calcium inhibit biofilm formation and explored the involvement of c-di-GMP in this process. Our findings demonstrate that albumin and calcium inhibit B. bronchiseptica biofilm formation by two apparently independent mechanisms, formation, increasing with AC secretion playing a significant role, while the filamentous hemagglutinin adhesin (FHA) does not appear to be directly involved. Furthermore,and inducing c-di-GMP degradation. regulates biofilm formation in response to albumin and calcium. This study enhances our understanding of the complex mechanisms governing B. bronchiseptica biofilm formation and its modulation by host factors.
Fil: Mugni, Sabrina Laura. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Argentina. Fil: Ambrosis, Nicolás Martín. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Argentina. Fil: O'Toole, George A. Geisel School of Medicine at Dartmouth, Hanover. Department of Microbiology and Immunology. Estados Unidos. Fil: Sisti, Federico. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Argentina. Fil: Fernández, Julieta. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Argentina.
Instituto de Biotecnología y Biología Molecular - Materia
-
Ciencias Exactas
Bordetella
Biofilm
Interplay - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/177239
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Supplementary material for "Interplay Of Virulence Factors and Signaling Molecules: Albumin And Calcium-Mediated Biofilm Regulation In Bordetella bronchiseptia"Mugni, Sabrina LauraAmbrosis, Nicolás MartínO'Toole, George A.Sisti, FedericoFernández, JulietaCiencias Exactashttps://purl.org/becyt/ford/1.6BordetellaBiofilmInterplayBordetella bronchiseptica, a respiratory pathogen capable of infecting various mammals, including humans, is associated with chronic infections, contrasting with the acute infections caused by B. pertussis. Both pathogens can form biofilm-like structures in vivo, providing tolerance against environmental stresses. Biofilm formation in B. bronchiseptica is regulated by the BvgAS two-component system, with intermediate concentrations of certain modulators inducing a phase favoring biofilm formation. Recent studies have highlighted the role of cyclic diguanylate monophosphate (c-di-GMP) in this process: elevated c-di-GMP levels stimulate biofilm formation, whereas phosphodiesterase (PDE) activation reduces biofilms. Respiratory secretions, which contain albumin and calcium at higher concentrations than standard growth media, promote an increase in the amount and localization of the adenylate cyclase toxin (AC), an important Bordetella virulence factor. Secreted AC present in the extracellular media or attached to the outer membrane inhibits biofilm formation. Based on these observations, we hypothesized that serum albumin and calcium inhibit biofilm formation and explored the involvement of c-di-GMP in this process. Our findings demonstrate that albumin and calcium inhibit B. bronchiseptica biofilm formation by two apparently independent mechanisms, formation, increasing with AC secretion playing a significant role, while the filamentous hemagglutinin adhesin (FHA) does not appear to be directly involved. Furthermore,and inducing c-di-GMP degradation. regulates biofilm formation in response to albumin and calcium. This study enhances our understanding of the complex mechanisms governing B. bronchiseptica biofilm formation and its modulation by host factors.Fil: Mugni, Sabrina Laura. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Argentina. Fil: Ambrosis, Nicolás Martín. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Argentina. Fil: O'Toole, George A. Geisel School of Medicine at Dartmouth, Hanover. Department of Microbiology and Immunology. Estados Unidos. Fil: Sisti, Federico. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Argentina. Fil: Fernández, Julieta. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Argentina.Instituto de Biotecnología y Biología Molecular2025info:eu-repo/semantics/publishedVersionConjunto de datoshttp://purl.org/coar/resource_type/c_ddb1info:ar-repo/semantics/conjuntoDeDatosinfo:eu-repo/semantics/dataSetapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/177239https://doi.org/10.35537/10915/177239enginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:47:54Zoai:sedici.unlp.edu.ar:10915/177239Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:47:54.312SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Supplementary material for "Interplay Of Virulence Factors and Signaling Molecules: Albumin And Calcium-Mediated Biofilm Regulation In Bordetella bronchiseptia" |
title |
Supplementary material for "Interplay Of Virulence Factors and Signaling Molecules: Albumin And Calcium-Mediated Biofilm Regulation In Bordetella bronchiseptia" |
spellingShingle |
Supplementary material for "Interplay Of Virulence Factors and Signaling Molecules: Albumin And Calcium-Mediated Biofilm Regulation In Bordetella bronchiseptia" Mugni, Sabrina Laura Ciencias Exactas Bordetella Biofilm Interplay |
title_short |
Supplementary material for "Interplay Of Virulence Factors and Signaling Molecules: Albumin And Calcium-Mediated Biofilm Regulation In Bordetella bronchiseptia" |
title_full |
Supplementary material for "Interplay Of Virulence Factors and Signaling Molecules: Albumin And Calcium-Mediated Biofilm Regulation In Bordetella bronchiseptia" |
title_fullStr |
Supplementary material for "Interplay Of Virulence Factors and Signaling Molecules: Albumin And Calcium-Mediated Biofilm Regulation In Bordetella bronchiseptia" |
title_full_unstemmed |
Supplementary material for "Interplay Of Virulence Factors and Signaling Molecules: Albumin And Calcium-Mediated Biofilm Regulation In Bordetella bronchiseptia" |
title_sort |
Supplementary material for "Interplay Of Virulence Factors and Signaling Molecules: Albumin And Calcium-Mediated Biofilm Regulation In Bordetella bronchiseptia" |
dc.creator.none.fl_str_mv |
Mugni, Sabrina Laura Ambrosis, Nicolás Martín O'Toole, George A. Sisti, Federico Fernández, Julieta |
author |
Mugni, Sabrina Laura |
author_facet |
Mugni, Sabrina Laura Ambrosis, Nicolás Martín O'Toole, George A. Sisti, Federico Fernández, Julieta |
author_role |
author |
author2 |
Ambrosis, Nicolás Martín O'Toole, George A. Sisti, Federico Fernández, Julieta |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Ciencias Exactas Bordetella Biofilm Interplay |
topic |
Ciencias Exactas Bordetella Biofilm Interplay |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 |
dc.description.none.fl_txt_mv |
Bordetella bronchiseptica, a respiratory pathogen capable of infecting various mammals, including humans, is associated with chronic infections, contrasting with the acute infections caused by B. pertussis. Both pathogens can form biofilm-like structures in vivo, providing tolerance against environmental stresses. Biofilm formation in B. bronchiseptica is regulated by the BvgAS two-component system, with intermediate concentrations of certain modulators inducing a phase favoring biofilm formation. Recent studies have highlighted the role of cyclic diguanylate monophosphate (c-di-GMP) in this process: elevated c-di-GMP levels stimulate biofilm formation, whereas phosphodiesterase (PDE) activation reduces biofilms. Respiratory secretions, which contain albumin and calcium at higher concentrations than standard growth media, promote an increase in the amount and localization of the adenylate cyclase toxin (AC), an important Bordetella virulence factor. Secreted AC present in the extracellular media or attached to the outer membrane inhibits biofilm formation. Based on these observations, we hypothesized that serum albumin and calcium inhibit biofilm formation and explored the involvement of c-di-GMP in this process. Our findings demonstrate that albumin and calcium inhibit B. bronchiseptica biofilm formation by two apparently independent mechanisms, formation, increasing with AC secretion playing a significant role, while the filamentous hemagglutinin adhesin (FHA) does not appear to be directly involved. Furthermore,and inducing c-di-GMP degradation. regulates biofilm formation in response to albumin and calcium. This study enhances our understanding of the complex mechanisms governing B. bronchiseptica biofilm formation and its modulation by host factors. Fil: Mugni, Sabrina Laura. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Argentina. Fil: Ambrosis, Nicolás Martín. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Argentina. Fil: O'Toole, George A. Geisel School of Medicine at Dartmouth, Hanover. Department of Microbiology and Immunology. Estados Unidos. Fil: Sisti, Federico. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Argentina. Fil: Fernández, Julieta. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Argentina. Instituto de Biotecnología y Biología Molecular |
description |
Bordetella bronchiseptica, a respiratory pathogen capable of infecting various mammals, including humans, is associated with chronic infections, contrasting with the acute infections caused by B. pertussis. Both pathogens can form biofilm-like structures in vivo, providing tolerance against environmental stresses. Biofilm formation in B. bronchiseptica is regulated by the BvgAS two-component system, with intermediate concentrations of certain modulators inducing a phase favoring biofilm formation. Recent studies have highlighted the role of cyclic diguanylate monophosphate (c-di-GMP) in this process: elevated c-di-GMP levels stimulate biofilm formation, whereas phosphodiesterase (PDE) activation reduces biofilms. Respiratory secretions, which contain albumin and calcium at higher concentrations than standard growth media, promote an increase in the amount and localization of the adenylate cyclase toxin (AC), an important Bordetella virulence factor. Secreted AC present in the extracellular media or attached to the outer membrane inhibits biofilm formation. Based on these observations, we hypothesized that serum albumin and calcium inhibit biofilm formation and explored the involvement of c-di-GMP in this process. Our findings demonstrate that albumin and calcium inhibit B. bronchiseptica biofilm formation by two apparently independent mechanisms, formation, increasing with AC secretion playing a significant role, while the filamentous hemagglutinin adhesin (FHA) does not appear to be directly involved. Furthermore,and inducing c-di-GMP degradation. regulates biofilm formation in response to albumin and calcium. This study enhances our understanding of the complex mechanisms governing B. bronchiseptica biofilm formation and its modulation by host factors. |
publishDate |
2025 |
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2025 |
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eng |
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