Toll-Like Receptor 2-Independent Host Innate Immune Response against an Epidemic Strain of Streptococcus suis That Causes a Toxic Shock-Like Syndrome in Humans
- Autores
- Lachance, Claude; Segura, Mariela; Pereyra Gerber, Federico Pehuén; Xu, Jianguo; Gottschalk, Marcelo
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Streptococcus suis is an emerging zoonotic agent causing meningitis and septicemia. Outbreaks in humans in China with atypical cases of streptococcal toxic shock-like syndrome have been described to be caused by a clonal epidemic S. suis strain characterized as sequence type (ST) 7 by multilocus sequence typing, different from the classical ST1 usually isolated in Europe. Previous in vitro studies showed that Toll-like receptor (TLR) 2 plays a major role in S. suis ST1 interactions with host cells. In the present study, the in vivo role of TLR2 in systemic infections caused by S. suis ST1 or ST7 strains using TLR2 deficient (TLR2−/−) mice was evaluated. TLR2-mediated recognition significantly contributes to the acute disease caused by the highly virulent S. suis ST1 strain, since the TLR2−/− mice remained unaffected when compared to wild type (WT) mice. The lack of mortality could not be associated with a lower bacterial burden; however, a significant decrease in the induction of pro-inflammatory mediators, as evaluated by microarray, real-time PCR and protein assays, was observed. On the other hand, TLR2−/− mice infected with the epidemic ST7 strain presented no significant differences regarding survival and expression of pro-inflammatory mediators when compared to the WT mice. Together, these results show a TLR2-independent host innate immune response to S. suis that depends on the strain.
Fil: Lachance, Claude. University of Montreal; Canadá
Fil: Segura, Mariela. University of Montreal; Canadá
Fil: Pereyra Gerber, Federico Pehuén. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina
Fil: Xu, Jianguo. Chinese Center for Disease Control and Prevention; China
Fil: Gottschalk, Marcelo. University of Montreal; Canadá - Materia
-
Streptococcus Suis
Toll-Like Receptor 2
Toxic-Shock Syndrome
Host Response to Pathogen - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/2537
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Toll-Like Receptor 2-Independent Host Innate Immune Response against an Epidemic Strain of Streptococcus suis That Causes a Toxic Shock-Like Syndrome in HumansLachance, ClaudeSegura, MarielaPereyra Gerber, Federico PehuénXu, JianguoGottschalk, MarceloStreptococcus SuisToll-Like Receptor 2Toxic-Shock SyndromeHost Response to Pathogenhttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3Streptococcus suis is an emerging zoonotic agent causing meningitis and septicemia. Outbreaks in humans in China with atypical cases of streptococcal toxic shock-like syndrome have been described to be caused by a clonal epidemic S. suis strain characterized as sequence type (ST) 7 by multilocus sequence typing, different from the classical ST1 usually isolated in Europe. Previous in vitro studies showed that Toll-like receptor (TLR) 2 plays a major role in S. suis ST1 interactions with host cells. In the present study, the in vivo role of TLR2 in systemic infections caused by S. suis ST1 or ST7 strains using TLR2 deficient (TLR2−/−) mice was evaluated. TLR2-mediated recognition significantly contributes to the acute disease caused by the highly virulent S. suis ST1 strain, since the TLR2−/− mice remained unaffected when compared to wild type (WT) mice. The lack of mortality could not be associated with a lower bacterial burden; however, a significant decrease in the induction of pro-inflammatory mediators, as evaluated by microarray, real-time PCR and protein assays, was observed. On the other hand, TLR2−/− mice infected with the epidemic ST7 strain presented no significant differences regarding survival and expression of pro-inflammatory mediators when compared to the WT mice. Together, these results show a TLR2-independent host innate immune response to S. suis that depends on the strain.Fil: Lachance, Claude. University of Montreal; CanadáFil: Segura, Mariela. University of Montreal; CanadáFil: Pereyra Gerber, Federico Pehuén. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; ArgentinaFil: Xu, Jianguo. Chinese Center for Disease Control and Prevention; ChinaFil: Gottschalk, Marcelo. University of Montreal; CanadáPublic Library of Science2013-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/2537Lachance, Claude; Segura, Mariela; Pereyra Gerber, Federico Pehuén; Xu, Jianguo; Gottschalk, Marcelo; Toll-Like Receptor 2-Independent Host Innate Immune Response against an Epidemic Strain of Streptococcus suis That Causes a Toxic Shock-Like Syndrome in Humans; Public Library of Science; Plos One; 8; 5; 5-2013; e65031-e650311932-6203enginfo:eu-repo/semantics/altIdentifier/url/http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3665724/info:eu-repo/semantics/altIdentifier/doi/10.1371%2Fjournal.pone.0065031info:eu-repo/semantics/altIdentifier/url/http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0065031info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:11:33Zoai:ri.conicet.gov.ar:11336/2537instacron: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 10:11:33.353CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Toll-Like Receptor 2-Independent Host Innate Immune Response against an Epidemic Strain of Streptococcus suis That Causes a Toxic Shock-Like Syndrome in Humans |
title |
Toll-Like Receptor 2-Independent Host Innate Immune Response against an Epidemic Strain of Streptococcus suis That Causes a Toxic Shock-Like Syndrome in Humans |
spellingShingle |
Toll-Like Receptor 2-Independent Host Innate Immune Response against an Epidemic Strain of Streptococcus suis That Causes a Toxic Shock-Like Syndrome in Humans Lachance, Claude Streptococcus Suis Toll-Like Receptor 2 Toxic-Shock Syndrome Host Response to Pathogen |
title_short |
Toll-Like Receptor 2-Independent Host Innate Immune Response against an Epidemic Strain of Streptococcus suis That Causes a Toxic Shock-Like Syndrome in Humans |
title_full |
Toll-Like Receptor 2-Independent Host Innate Immune Response against an Epidemic Strain of Streptococcus suis That Causes a Toxic Shock-Like Syndrome in Humans |
title_fullStr |
Toll-Like Receptor 2-Independent Host Innate Immune Response against an Epidemic Strain of Streptococcus suis That Causes a Toxic Shock-Like Syndrome in Humans |
title_full_unstemmed |
Toll-Like Receptor 2-Independent Host Innate Immune Response against an Epidemic Strain of Streptococcus suis That Causes a Toxic Shock-Like Syndrome in Humans |
title_sort |
Toll-Like Receptor 2-Independent Host Innate Immune Response against an Epidemic Strain of Streptococcus suis That Causes a Toxic Shock-Like Syndrome in Humans |
dc.creator.none.fl_str_mv |
Lachance, Claude Segura, Mariela Pereyra Gerber, Federico Pehuén Xu, Jianguo Gottschalk, Marcelo |
author |
Lachance, Claude |
author_facet |
Lachance, Claude Segura, Mariela Pereyra Gerber, Federico Pehuén Xu, Jianguo Gottschalk, Marcelo |
author_role |
author |
author2 |
Segura, Mariela Pereyra Gerber, Federico Pehuén Xu, Jianguo Gottschalk, Marcelo |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Streptococcus Suis Toll-Like Receptor 2 Toxic-Shock Syndrome Host Response to Pathogen |
topic |
Streptococcus Suis Toll-Like Receptor 2 Toxic-Shock Syndrome Host Response to Pathogen |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/3.1 https://purl.org/becyt/ford/3 |
dc.description.none.fl_txt_mv |
Streptococcus suis is an emerging zoonotic agent causing meningitis and septicemia. Outbreaks in humans in China with atypical cases of streptococcal toxic shock-like syndrome have been described to be caused by a clonal epidemic S. suis strain characterized as sequence type (ST) 7 by multilocus sequence typing, different from the classical ST1 usually isolated in Europe. Previous in vitro studies showed that Toll-like receptor (TLR) 2 plays a major role in S. suis ST1 interactions with host cells. In the present study, the in vivo role of TLR2 in systemic infections caused by S. suis ST1 or ST7 strains using TLR2 deficient (TLR2−/−) mice was evaluated. TLR2-mediated recognition significantly contributes to the acute disease caused by the highly virulent S. suis ST1 strain, since the TLR2−/− mice remained unaffected when compared to wild type (WT) mice. The lack of mortality could not be associated with a lower bacterial burden; however, a significant decrease in the induction of pro-inflammatory mediators, as evaluated by microarray, real-time PCR and protein assays, was observed. On the other hand, TLR2−/− mice infected with the epidemic ST7 strain presented no significant differences regarding survival and expression of pro-inflammatory mediators when compared to the WT mice. Together, these results show a TLR2-independent host innate immune response to S. suis that depends on the strain. Fil: Lachance, Claude. University of Montreal; Canadá Fil: Segura, Mariela. University of Montreal; Canadá Fil: Pereyra Gerber, Federico Pehuén. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay; Argentina Fil: Xu, Jianguo. Chinese Center for Disease Control and Prevention; China Fil: Gottschalk, Marcelo. University of Montreal; Canadá |
description |
Streptococcus suis is an emerging zoonotic agent causing meningitis and septicemia. Outbreaks in humans in China with atypical cases of streptococcal toxic shock-like syndrome have been described to be caused by a clonal epidemic S. suis strain characterized as sequence type (ST) 7 by multilocus sequence typing, different from the classical ST1 usually isolated in Europe. Previous in vitro studies showed that Toll-like receptor (TLR) 2 plays a major role in S. suis ST1 interactions with host cells. In the present study, the in vivo role of TLR2 in systemic infections caused by S. suis ST1 or ST7 strains using TLR2 deficient (TLR2−/−) mice was evaluated. TLR2-mediated recognition significantly contributes to the acute disease caused by the highly virulent S. suis ST1 strain, since the TLR2−/− mice remained unaffected when compared to wild type (WT) mice. The lack of mortality could not be associated with a lower bacterial burden; however, a significant decrease in the induction of pro-inflammatory mediators, as evaluated by microarray, real-time PCR and protein assays, was observed. On the other hand, TLR2−/− mice infected with the epidemic ST7 strain presented no significant differences regarding survival and expression of pro-inflammatory mediators when compared to the WT mice. Together, these results show a TLR2-independent host innate immune response to S. suis that depends on the strain. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-05 |
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/11336/2537 Lachance, Claude; Segura, Mariela; Pereyra Gerber, Federico Pehuén; Xu, Jianguo; Gottschalk, Marcelo; Toll-Like Receptor 2-Independent Host Innate Immune Response against an Epidemic Strain of Streptococcus suis That Causes a Toxic Shock-Like Syndrome in Humans; Public Library of Science; Plos One; 8; 5; 5-2013; e65031-e65031 1932-6203 |
url |
http://hdl.handle.net/11336/2537 |
identifier_str_mv |
Lachance, Claude; Segura, Mariela; Pereyra Gerber, Federico Pehuén; Xu, Jianguo; Gottschalk, Marcelo; Toll-Like Receptor 2-Independent Host Innate Immune Response against an Epidemic Strain of Streptococcus suis That Causes a Toxic Shock-Like Syndrome in Humans; Public Library of Science; Plos One; 8; 5; 5-2013; e65031-e65031 1932-6203 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3665724/ info:eu-repo/semantics/altIdentifier/doi/10.1371%2Fjournal.pone.0065031 info:eu-repo/semantics/altIdentifier/url/http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0065031 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Public Library of Science |
publisher.none.fl_str_mv |
Public Library of Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |