Salicylic acid enhances Staphylococcus aureus extracellular adhesin protein expression
- Autores
- Alvarez, Lucía Paula; Barbagelata, María Sol; Cheung, Ambrose L.; Sordelli, Daniel Oscar; Buzzola, Fernanda Roxana
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- One of the virulence factors required by Staphylococcus aureus at the early stages of infection is Eap, a secreted adhesin that binds many host proteins and is upregulated by the two-component regulatory system saeRS. The S. aureus Newman strain harbors a mutation in saeS that is thought to be responsible for the high level of Eap expression in this strain. This study was designed to ascertain whether salicylic acid (SAL) affects the expression of Eap and the internalization of S. aureus into epithelial cells. The strain Newman treated with SAL exhibited increased levels of eap transcription and protein expression. Furthermore, SAL treatment increased the eap promoter activity. SAL treatment enhanced Eap expression in the Newman and in other S. aureus strains that do not carry the mutation in saeS. Internalization of S. aureus eap and sae mutants into the MAC-T epithelial cells was significantly decreased compared with the wild-type counterparts. In conclusion, we demonstrated that a low concentration of SAL increased S. aureus Eap expression possibly due to enhancement of sae. SAL may create the conditions for S. aureus persistence in the host, not only by decreasing the capsular polysaccharide expression as shown before, but also by enhancing Eap expression.
Fil: Alvarez, Lucía Paula. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Cátedra de Microbiología, Parasitología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; Argentina
Fil: Barbagelata, María Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Cátedra de Microbiología, Parasitología e Inmunología; Argentina
Fil: Cheung, Ambrose L.. Dartmouth Medical School; Estados Unidos
Fil: Sordelli, Daniel Oscar. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Cátedra de Microbiología, Parasitología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; Argentina
Fil: Buzzola, Fernanda Roxana. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Cátedra de Microbiología, Parasitología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; Argentina - Materia
-
EXTRACELLULAR ADHESIN PROTEIN
SALICYLIC ACID
STAPHYLOCOCCUS AUREUS - 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:11336/113426
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Salicylic acid enhances Staphylococcus aureus extracellular adhesin protein expressionAlvarez, Lucía PaulaBarbagelata, María SolCheung, Ambrose L.Sordelli, Daniel OscarBuzzola, Fernanda RoxanaEXTRACELLULAR ADHESIN PROTEINSALICYLIC ACIDSTAPHYLOCOCCUS AUREUShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1One of the virulence factors required by Staphylococcus aureus at the early stages of infection is Eap, a secreted adhesin that binds many host proteins and is upregulated by the two-component regulatory system saeRS. The S. aureus Newman strain harbors a mutation in saeS that is thought to be responsible for the high level of Eap expression in this strain. This study was designed to ascertain whether salicylic acid (SAL) affects the expression of Eap and the internalization of S. aureus into epithelial cells. The strain Newman treated with SAL exhibited increased levels of eap transcription and protein expression. Furthermore, SAL treatment increased the eap promoter activity. SAL treatment enhanced Eap expression in the Newman and in other S. aureus strains that do not carry the mutation in saeS. Internalization of S. aureus eap and sae mutants into the MAC-T epithelial cells was significantly decreased compared with the wild-type counterparts. In conclusion, we demonstrated that a low concentration of SAL increased S. aureus Eap expression possibly due to enhancement of sae. SAL may create the conditions for S. aureus persistence in the host, not only by decreasing the capsular polysaccharide expression as shown before, but also by enhancing Eap expression.Fil: Alvarez, Lucía Paula. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Cátedra de Microbiología, Parasitología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; ArgentinaFil: Barbagelata, María Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Cátedra de Microbiología, Parasitología e Inmunología; ArgentinaFil: Cheung, Ambrose L.. Dartmouth Medical School; Estados UnidosFil: Sordelli, Daniel Oscar. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Cátedra de Microbiología, Parasitología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; ArgentinaFil: Buzzola, Fernanda Roxana. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Cátedra de Microbiología, Parasitología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; ArgentinaElsevier Science2011-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/113426Alvarez, Lucía Paula; Barbagelata, María Sol; Cheung, Ambrose L.; Sordelli, Daniel Oscar; Buzzola, Fernanda Roxana; Salicylic acid enhances Staphylococcus aureus extracellular adhesin protein expression; Elsevier Science; Microbes and Infection; 13; 12-13; 11-2011; 1073-10801286-4579CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S1286457911001481info:eu-repo/semantics/altIdentifier/doi/10.1016/j.micinf.2011.06.003info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:11:29Zoai:ri.conicet.gov.ar:11336/113426instacron: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:34982025-09-03 10:11:29.757CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Salicylic acid enhances Staphylococcus aureus extracellular adhesin protein expression |
title |
Salicylic acid enhances Staphylococcus aureus extracellular adhesin protein expression |
spellingShingle |
Salicylic acid enhances Staphylococcus aureus extracellular adhesin protein expression Alvarez, Lucía Paula EXTRACELLULAR ADHESIN PROTEIN SALICYLIC ACID STAPHYLOCOCCUS AUREUS |
title_short |
Salicylic acid enhances Staphylococcus aureus extracellular adhesin protein expression |
title_full |
Salicylic acid enhances Staphylococcus aureus extracellular adhesin protein expression |
title_fullStr |
Salicylic acid enhances Staphylococcus aureus extracellular adhesin protein expression |
title_full_unstemmed |
Salicylic acid enhances Staphylococcus aureus extracellular adhesin protein expression |
title_sort |
Salicylic acid enhances Staphylococcus aureus extracellular adhesin protein expression |
dc.creator.none.fl_str_mv |
Alvarez, Lucía Paula Barbagelata, María Sol Cheung, Ambrose L. Sordelli, Daniel Oscar Buzzola, Fernanda Roxana |
author |
Alvarez, Lucía Paula |
author_facet |
Alvarez, Lucía Paula Barbagelata, María Sol Cheung, Ambrose L. Sordelli, Daniel Oscar Buzzola, Fernanda Roxana |
author_role |
author |
author2 |
Barbagelata, María Sol Cheung, Ambrose L. Sordelli, Daniel Oscar Buzzola, Fernanda Roxana |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
EXTRACELLULAR ADHESIN PROTEIN SALICYLIC ACID STAPHYLOCOCCUS AUREUS |
topic |
EXTRACELLULAR ADHESIN PROTEIN SALICYLIC ACID STAPHYLOCOCCUS AUREUS |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
One of the virulence factors required by Staphylococcus aureus at the early stages of infection is Eap, a secreted adhesin that binds many host proteins and is upregulated by the two-component regulatory system saeRS. The S. aureus Newman strain harbors a mutation in saeS that is thought to be responsible for the high level of Eap expression in this strain. This study was designed to ascertain whether salicylic acid (SAL) affects the expression of Eap and the internalization of S. aureus into epithelial cells. The strain Newman treated with SAL exhibited increased levels of eap transcription and protein expression. Furthermore, SAL treatment increased the eap promoter activity. SAL treatment enhanced Eap expression in the Newman and in other S. aureus strains that do not carry the mutation in saeS. Internalization of S. aureus eap and sae mutants into the MAC-T epithelial cells was significantly decreased compared with the wild-type counterparts. In conclusion, we demonstrated that a low concentration of SAL increased S. aureus Eap expression possibly due to enhancement of sae. SAL may create the conditions for S. aureus persistence in the host, not only by decreasing the capsular polysaccharide expression as shown before, but also by enhancing Eap expression. Fil: Alvarez, Lucía Paula. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Cátedra de Microbiología, Parasitología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; Argentina Fil: Barbagelata, María Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Cátedra de Microbiología, Parasitología e Inmunología; Argentina Fil: Cheung, Ambrose L.. Dartmouth Medical School; Estados Unidos Fil: Sordelli, Daniel Oscar. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Cátedra de Microbiología, Parasitología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; Argentina Fil: Buzzola, Fernanda Roxana. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Cátedra de Microbiología, Parasitología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; Argentina |
description |
One of the virulence factors required by Staphylococcus aureus at the early stages of infection is Eap, a secreted adhesin that binds many host proteins and is upregulated by the two-component regulatory system saeRS. The S. aureus Newman strain harbors a mutation in saeS that is thought to be responsible for the high level of Eap expression in this strain. This study was designed to ascertain whether salicylic acid (SAL) affects the expression of Eap and the internalization of S. aureus into epithelial cells. The strain Newman treated with SAL exhibited increased levels of eap transcription and protein expression. Furthermore, SAL treatment increased the eap promoter activity. SAL treatment enhanced Eap expression in the Newman and in other S. aureus strains that do not carry the mutation in saeS. Internalization of S. aureus eap and sae mutants into the MAC-T epithelial cells was significantly decreased compared with the wild-type counterparts. In conclusion, we demonstrated that a low concentration of SAL increased S. aureus Eap expression possibly due to enhancement of sae. SAL may create the conditions for S. aureus persistence in the host, not only by decreasing the capsular polysaccharide expression as shown before, but also by enhancing Eap expression. |
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/11336/113426 Alvarez, Lucía Paula; Barbagelata, María Sol; Cheung, Ambrose L.; Sordelli, Daniel Oscar; Buzzola, Fernanda Roxana; Salicylic acid enhances Staphylococcus aureus extracellular adhesin protein expression; Elsevier Science; Microbes and Infection; 13; 12-13; 11-2011; 1073-1080 1286-4579 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/113426 |
identifier_str_mv |
Alvarez, Lucía Paula; Barbagelata, María Sol; Cheung, Ambrose L.; Sordelli, Daniel Oscar; Buzzola, Fernanda Roxana; Salicylic acid enhances Staphylococcus aureus extracellular adhesin protein expression; Elsevier Science; Microbes and Infection; 13; 12-13; 11-2011; 1073-1080 1286-4579 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://www.sciencedirect.com/science/article/abs/pii/S1286457911001481 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.micinf.2011.06.003 |
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 application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
dc.source.none.fl_str_mv |
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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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