Evolution and adaptation in pseudomonas aeruginosa biofilms driven by mismatch repair system-deficient mutators
- Autores
- Lujan, Adela Maria; Maciá, María D.; Yang, Liang; Molin, Søren; Oliver, Antonio; Smania, Andrea
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Pseudomonas aeruginosa is an important opportunistic pathogen causing chronic airway infections, especially in cystic fibrosis (CF) patients. The majority of the CF patients acquire P. aeruginosa during early childhood, and most of them develop chronic infections resulting in severe lung disease, which are rarely eradicated despite intensive antibiotic therapy. Current knowledge indicates that three major adaptive strategies, biofilm development, phenotypic diversification, and mutator phenotypes [driven by a defective mismatch repair system (MRS)], play important roles in P. aeruginosa chronic infections, but the relationship between these strategies is still poorly understood. We have used the flow-cell biofilm model system to investigate the impact of the mutS associated mutator phenotype on development, dynamics, diversification and adaptation of P. aeruginosa biofilms. Through competition experiments we demonstrate for the first time that P. aeruginosa MRS-deficient mutators had enhanced adaptability over wild-type strains when grown in structured biofilms but not as planktonic cells. This advantage was associated with enhanced micro-colony development and increased rates of phenotypic diversification, evidenced by biofilm architecture features and by a wider range and proportion of morphotypic colony variants, respectively. Additionally, morphotypic variants generated in mutator biofilms showed increased competitiveness, providing further evidence for mutator-driven adaptive evolution in the biofilm mode of growth. This work helps to understand the basis for the specific high proportion and role of mutators in chronic infections, where P. aeruginosa develops in biofilm communities.
Fil: Lujan, Adela Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Química Biológica de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina. Universidad Católica de Córdoba. Instituto de Investigaciones en Recursos Naturales y Sustentabilidad José Sanchez Labrador S. J. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Recursos Naturales y Sustentabilidad José Sanchez Labrador S. J.; Argentina
Fil: Maciá, María D.. Instituto de Investigación Sanitaria Illes Balears; España
Fil: Yang, Liang. Technical University of Denmark; Dinamarca
Fil: Molin, Søren. Technical University of Denmark; Dinamarca
Fil: Oliver, Antonio. Instituto de Investigación Sanitaria Illes Balears; España
Fil: Smania, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Química Biológica de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina - Materia
-
Pseudomonas aeruginosa
Mutators
Biofilms
Evolution - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/132402
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Evolution and adaptation in pseudomonas aeruginosa biofilms driven by mismatch repair system-deficient mutatorsLujan, Adela MariaMaciá, María D.Yang, LiangMolin, SørenOliver, AntonioSmania, AndreaPseudomonas aeruginosaMutatorsBiofilmsEvolutionhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Pseudomonas aeruginosa is an important opportunistic pathogen causing chronic airway infections, especially in cystic fibrosis (CF) patients. The majority of the CF patients acquire P. aeruginosa during early childhood, and most of them develop chronic infections resulting in severe lung disease, which are rarely eradicated despite intensive antibiotic therapy. Current knowledge indicates that three major adaptive strategies, biofilm development, phenotypic diversification, and mutator phenotypes [driven by a defective mismatch repair system (MRS)], play important roles in P. aeruginosa chronic infections, but the relationship between these strategies is still poorly understood. We have used the flow-cell biofilm model system to investigate the impact of the mutS associated mutator phenotype on development, dynamics, diversification and adaptation of P. aeruginosa biofilms. Through competition experiments we demonstrate for the first time that P. aeruginosa MRS-deficient mutators had enhanced adaptability over wild-type strains when grown in structured biofilms but not as planktonic cells. This advantage was associated with enhanced micro-colony development and increased rates of phenotypic diversification, evidenced by biofilm architecture features and by a wider range and proportion of morphotypic colony variants, respectively. Additionally, morphotypic variants generated in mutator biofilms showed increased competitiveness, providing further evidence for mutator-driven adaptive evolution in the biofilm mode of growth. This work helps to understand the basis for the specific high proportion and role of mutators in chronic infections, where P. aeruginosa develops in biofilm communities.Fil: Lujan, Adela Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Química Biológica de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina. Universidad Católica de Córdoba. Instituto de Investigaciones en Recursos Naturales y Sustentabilidad José Sanchez Labrador S. J. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Recursos Naturales y Sustentabilidad José Sanchez Labrador S. J.; ArgentinaFil: Maciá, María D.. Instituto de Investigación Sanitaria Illes Balears; EspañaFil: Yang, Liang. Technical University of Denmark; DinamarcaFil: Molin, Søren. Technical University of Denmark; DinamarcaFil: Oliver, Antonio. Instituto de Investigación Sanitaria Illes Balears; EspañaFil: Smania, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Química Biológica de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Centro de Investigaciones en Química Biológica de Córdoba; ArgentinaPublic Library of Science2011-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/132402Lujan, Adela Maria; Maciá, María D.; Yang, Liang; Molin, Søren; Oliver, Antonio; et al.; Evolution and adaptation in pseudomonas aeruginosa biofilms driven by mismatch repair system-deficient mutators; Public Library of Science; Plos One; 6; 11; 11-2011; 27842-278421932-6203CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubmed.ncbi.nlm.nih.gov/22114708/info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0027842info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:05:29Zoai:ri.conicet.gov.ar:11336/132402instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:05:30.194CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Evolution and adaptation in pseudomonas aeruginosa biofilms driven by mismatch repair system-deficient mutators |
title |
Evolution and adaptation in pseudomonas aeruginosa biofilms driven by mismatch repair system-deficient mutators |
spellingShingle |
Evolution and adaptation in pseudomonas aeruginosa biofilms driven by mismatch repair system-deficient mutators Lujan, Adela Maria Pseudomonas aeruginosa Mutators Biofilms Evolution |
title_short |
Evolution and adaptation in pseudomonas aeruginosa biofilms driven by mismatch repair system-deficient mutators |
title_full |
Evolution and adaptation in pseudomonas aeruginosa biofilms driven by mismatch repair system-deficient mutators |
title_fullStr |
Evolution and adaptation in pseudomonas aeruginosa biofilms driven by mismatch repair system-deficient mutators |
title_full_unstemmed |
Evolution and adaptation in pseudomonas aeruginosa biofilms driven by mismatch repair system-deficient mutators |
title_sort |
Evolution and adaptation in pseudomonas aeruginosa biofilms driven by mismatch repair system-deficient mutators |
dc.creator.none.fl_str_mv |
Lujan, Adela Maria Maciá, María D. Yang, Liang Molin, Søren Oliver, Antonio Smania, Andrea |
author |
Lujan, Adela Maria |
author_facet |
Lujan, Adela Maria Maciá, María D. Yang, Liang Molin, Søren Oliver, Antonio Smania, Andrea |
author_role |
author |
author2 |
Maciá, María D. Yang, Liang Molin, Søren Oliver, Antonio Smania, Andrea |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Pseudomonas aeruginosa Mutators Biofilms Evolution |
topic |
Pseudomonas aeruginosa Mutators Biofilms Evolution |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Pseudomonas aeruginosa is an important opportunistic pathogen causing chronic airway infections, especially in cystic fibrosis (CF) patients. The majority of the CF patients acquire P. aeruginosa during early childhood, and most of them develop chronic infections resulting in severe lung disease, which are rarely eradicated despite intensive antibiotic therapy. Current knowledge indicates that three major adaptive strategies, biofilm development, phenotypic diversification, and mutator phenotypes [driven by a defective mismatch repair system (MRS)], play important roles in P. aeruginosa chronic infections, but the relationship between these strategies is still poorly understood. We have used the flow-cell biofilm model system to investigate the impact of the mutS associated mutator phenotype on development, dynamics, diversification and adaptation of P. aeruginosa biofilms. Through competition experiments we demonstrate for the first time that P. aeruginosa MRS-deficient mutators had enhanced adaptability over wild-type strains when grown in structured biofilms but not as planktonic cells. This advantage was associated with enhanced micro-colony development and increased rates of phenotypic diversification, evidenced by biofilm architecture features and by a wider range and proportion of morphotypic colony variants, respectively. Additionally, morphotypic variants generated in mutator biofilms showed increased competitiveness, providing further evidence for mutator-driven adaptive evolution in the biofilm mode of growth. This work helps to understand the basis for the specific high proportion and role of mutators in chronic infections, where P. aeruginosa develops in biofilm communities. Fil: Lujan, Adela Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Química Biológica de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina. Universidad Católica de Córdoba. Instituto de Investigaciones en Recursos Naturales y Sustentabilidad José Sanchez Labrador S. J. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Recursos Naturales y Sustentabilidad José Sanchez Labrador S. J.; Argentina Fil: Maciá, María D.. Instituto de Investigación Sanitaria Illes Balears; España Fil: Yang, Liang. Technical University of Denmark; Dinamarca Fil: Molin, Søren. Technical University of Denmark; Dinamarca Fil: Oliver, Antonio. Instituto de Investigación Sanitaria Illes Balears; España Fil: Smania, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Química Biológica de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina |
description |
Pseudomonas aeruginosa is an important opportunistic pathogen causing chronic airway infections, especially in cystic fibrosis (CF) patients. The majority of the CF patients acquire P. aeruginosa during early childhood, and most of them develop chronic infections resulting in severe lung disease, which are rarely eradicated despite intensive antibiotic therapy. Current knowledge indicates that three major adaptive strategies, biofilm development, phenotypic diversification, and mutator phenotypes [driven by a defective mismatch repair system (MRS)], play important roles in P. aeruginosa chronic infections, but the relationship between these strategies is still poorly understood. We have used the flow-cell biofilm model system to investigate the impact of the mutS associated mutator phenotype on development, dynamics, diversification and adaptation of P. aeruginosa biofilms. Through competition experiments we demonstrate for the first time that P. aeruginosa MRS-deficient mutators had enhanced adaptability over wild-type strains when grown in structured biofilms but not as planktonic cells. This advantage was associated with enhanced micro-colony development and increased rates of phenotypic diversification, evidenced by biofilm architecture features and by a wider range and proportion of morphotypic colony variants, respectively. Additionally, morphotypic variants generated in mutator biofilms showed increased competitiveness, providing further evidence for mutator-driven adaptive evolution in the biofilm mode of growth. This work helps to understand the basis for the specific high proportion and role of mutators in chronic infections, where P. aeruginosa develops in biofilm communities. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-11 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/132402 Lujan, Adela Maria; Maciá, María D.; Yang, Liang; Molin, Søren; Oliver, Antonio; et al.; Evolution and adaptation in pseudomonas aeruginosa biofilms driven by mismatch repair system-deficient mutators; Public Library of Science; Plos One; 6; 11; 11-2011; 27842-27842 1932-6203 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/132402 |
identifier_str_mv |
Lujan, Adela Maria; Maciá, María D.; Yang, Liang; Molin, Søren; Oliver, Antonio; et al.; Evolution and adaptation in pseudomonas aeruginosa biofilms driven by mismatch repair system-deficient mutators; Public Library of Science; Plos One; 6; 11; 11-2011; 27842-27842 1932-6203 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://pubmed.ncbi.nlm.nih.gov/22114708/ info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0027842 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Public Library of Science |
publisher.none.fl_str_mv |
Public Library of Science |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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