The oxidative stress induced in vivo by Shiga toxin-2 contributes to the pathogenicity of haemolytic uraemic syndrome
- Autores
- Gomez, Sonia A.; Abrey-Recalde, M J; Panek, C A; Ferrarotti, N F; Repetto, M G; Mejías, M P; Fernandez, G. C.; Vanzulli, S; Isturiz, M.; Palermo, M.
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Fil: Gomez, Sonia A. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Departamento de Bacteriología. Servicio Antimicrobianos; Argentina.
Fil: Abrey-Recalde, M J. Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina.
Fil: Panek, C A. Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina.
Fil: Ferrarotti, N F. Laboratorio de Química General, Departamento de Química Analítica y Fisico‐ química, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires; Argentina.
Fil: Repetto, M G. Laboratorio de Química General, Departamento de Química Analítica y Fisico‐ química, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires; Argentina.
Fil: Mejías, M P. Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina.
Fil: Fernandez, G. C.Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina.
Fil: Vanzulli, S. División Patología, Instituto de Investigaciones Oncológicas, Academia Nacional de Medicina, Buenos Aires, Argentina.
Fil: Isturiz, M.Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina.
Fil: Palermo, M. Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina.
Typical haemolytic uraemic syndrome (HUS) is caused by Shiga toxin (Stx)-producing Escherichia coli infections and is characterized by thrombotic microangiopathy that leads to haemolytic anaemia, thrombocytopenia and acute renal failure. Renal or neurological sequelae are consequences of irreversible tissue damage during the acute phase. Stx toxicity and the acute inflammatory response raised by the host determine the development of HUS. At present there is no specific therapy to control Stx damage. The pathogenic role of reactive oxygen species (ROS) on endothelial injury has been largely documented. In this study, we investigated the in-vivo effects of Stx on the oxidative balance and its contribution to the development of HUS in mice. In addition, we analysed the effect of anti-oxidant agents as therapeutic tools to counteract Stx toxicity. We demonstrated that Stx induced an oxidative imbalance, evidenced by renal glutathione depletion and increased lipid membrane peroxidation. The increased ROS production by neutrophils may be one of the major sources of oxidative stress during Stx intoxication. All these parameters were ameliorated by anti-oxidants reducing platelet activation, renal damage and increasing survival. To conclude, Stx generates a pro-oxidative state that contributes to kidney failure, and exogenous anti-oxidants could be beneficial to counteract this pathogenic pathway. - Fuente
- Clinical and Experimental Immunology 2013;173(3):463-72.
- Materia
-
Síndrome Hemolítico-Urémico
Toxina Shiga II
Estrés Oxidativo - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- Repositorio
- Institución
- Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán"
- OAI Identificador
- oai:sgc.anlis.gob.ar:Publications/123456789/1911
Ver los metadatos del registro completo
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The oxidative stress induced in vivo by Shiga toxin-2 contributes to the pathogenicity of haemolytic uraemic syndromeGomez, Sonia A.Abrey-Recalde, M JPanek, C AFerrarotti, N FRepetto, M GMejías, M PFernandez, G. C.Vanzulli, SIsturiz, M.Palermo, M.Síndrome Hemolítico-UrémicoToxina Shiga IIEstrés OxidativoFil: Gomez, Sonia A. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Departamento de Bacteriología. Servicio Antimicrobianos; Argentina.Fil: Abrey-Recalde, M J. Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina.Fil: Panek, C A. Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina.Fil: Ferrarotti, N F. Laboratorio de Química General, Departamento de Química Analítica y Fisico‐ química, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires; Argentina.Fil: Repetto, M G. Laboratorio de Química General, Departamento de Química Analítica y Fisico‐ química, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires; Argentina.Fil: Mejías, M P. Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina.Fil: Fernandez, G. C.Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina.Fil: Vanzulli, S. División Patología, Instituto de Investigaciones Oncológicas, Academia Nacional de Medicina, Buenos Aires, Argentina.Fil: Isturiz, M.Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina.Fil: Palermo, M. Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina.Typical haemolytic uraemic syndrome (HUS) is caused by Shiga toxin (Stx)-producing Escherichia coli infections and is characterized by thrombotic microangiopathy that leads to haemolytic anaemia, thrombocytopenia and acute renal failure. Renal or neurological sequelae are consequences of irreversible tissue damage during the acute phase. Stx toxicity and the acute inflammatory response raised by the host determine the development of HUS. At present there is no specific therapy to control Stx damage. The pathogenic role of reactive oxygen species (ROS) on endothelial injury has been largely documented. In this study, we investigated the in-vivo effects of Stx on the oxidative balance and its contribution to the development of HUS in mice. In addition, we analysed the effect of anti-oxidant agents as therapeutic tools to counteract Stx toxicity. We demonstrated that Stx induced an oxidative imbalance, evidenced by renal glutathione depletion and increased lipid membrane peroxidation. The increased ROS production by neutrophils may be one of the major sources of oxidative stress during Stx intoxication. All these parameters were ameliorated by anti-oxidants reducing platelet activation, renal damage and increasing survival. To conclude, Stx generates a pro-oxidative state that contributes to kidney failure, and exogenous anti-oxidants could be beneficial to counteract this pathogenic pathway.Wiley2013-09info:ar-repo/semantics/articuloinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdf1365-2249http://sgc.anlis.gob.ar/handle/123456789/191110.1111/cei.12124Clinical and Experimental Immunology 2013;173(3):463-72.reponame:Sistema de Gestión del Conocimiento ANLIS MALBRÁNinstname:Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán"instacron:ANLISClinical and experimental immunologyenginfo:eu-repo/semantics/openAccess2025-09-11T10:51:31Zoai:sgc.anlis.gob.ar:Publications/123456789/1911Institucionalhttp://sgc.anlis.gob.ar/Organismo científico-tecnológicoNo correspondehttp://sgc.anlis.gob.ar/oai/biblioteca@anlis.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2025-09-11 10:51:32.181Sistema de Gestión del Conocimiento ANLIS MALBRÁN - Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán"false |
dc.title.none.fl_str_mv |
The oxidative stress induced in vivo by Shiga toxin-2 contributes to the pathogenicity of haemolytic uraemic syndrome |
title |
The oxidative stress induced in vivo by Shiga toxin-2 contributes to the pathogenicity of haemolytic uraemic syndrome |
spellingShingle |
The oxidative stress induced in vivo by Shiga toxin-2 contributes to the pathogenicity of haemolytic uraemic syndrome Gomez, Sonia A. Síndrome Hemolítico-Urémico Toxina Shiga II Estrés Oxidativo |
title_short |
The oxidative stress induced in vivo by Shiga toxin-2 contributes to the pathogenicity of haemolytic uraemic syndrome |
title_full |
The oxidative stress induced in vivo by Shiga toxin-2 contributes to the pathogenicity of haemolytic uraemic syndrome |
title_fullStr |
The oxidative stress induced in vivo by Shiga toxin-2 contributes to the pathogenicity of haemolytic uraemic syndrome |
title_full_unstemmed |
The oxidative stress induced in vivo by Shiga toxin-2 contributes to the pathogenicity of haemolytic uraemic syndrome |
title_sort |
The oxidative stress induced in vivo by Shiga toxin-2 contributes to the pathogenicity of haemolytic uraemic syndrome |
dc.creator.none.fl_str_mv |
Gomez, Sonia A. Abrey-Recalde, M J Panek, C A Ferrarotti, N F Repetto, M G Mejías, M P Fernandez, G. C. Vanzulli, S Isturiz, M. Palermo, M. |
author |
Gomez, Sonia A. |
author_facet |
Gomez, Sonia A. Abrey-Recalde, M J Panek, C A Ferrarotti, N F Repetto, M G Mejías, M P Fernandez, G. C. Vanzulli, S Isturiz, M. Palermo, M. |
author_role |
author |
author2 |
Abrey-Recalde, M J Panek, C A Ferrarotti, N F Repetto, M G Mejías, M P Fernandez, G. C. Vanzulli, S Isturiz, M. Palermo, M. |
author2_role |
author author author author author author author author author |
dc.subject.none.fl_str_mv |
Síndrome Hemolítico-Urémico Toxina Shiga II Estrés Oxidativo |
topic |
Síndrome Hemolítico-Urémico Toxina Shiga II Estrés Oxidativo |
dc.description.none.fl_txt_mv |
Fil: Gomez, Sonia A. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Departamento de Bacteriología. Servicio Antimicrobianos; Argentina. Fil: Abrey-Recalde, M J. Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina. Fil: Panek, C A. Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina. Fil: Ferrarotti, N F. Laboratorio de Química General, Departamento de Química Analítica y Fisico‐ química, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires; Argentina. Fil: Repetto, M G. Laboratorio de Química General, Departamento de Química Analítica y Fisico‐ química, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires; Argentina. Fil: Mejías, M P. Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina. Fil: Fernandez, G. C.Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina. Fil: Vanzulli, S. División Patología, Instituto de Investigaciones Oncológicas, Academia Nacional de Medicina, Buenos Aires, Argentina. Fil: Isturiz, M.Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina. Fil: Palermo, M. Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental, (IMEX) (CONICET), Buenos Aires; Argentina. Typical haemolytic uraemic syndrome (HUS) is caused by Shiga toxin (Stx)-producing Escherichia coli infections and is characterized by thrombotic microangiopathy that leads to haemolytic anaemia, thrombocytopenia and acute renal failure. Renal or neurological sequelae are consequences of irreversible tissue damage during the acute phase. Stx toxicity and the acute inflammatory response raised by the host determine the development of HUS. At present there is no specific therapy to control Stx damage. The pathogenic role of reactive oxygen species (ROS) on endothelial injury has been largely documented. In this study, we investigated the in-vivo effects of Stx on the oxidative balance and its contribution to the development of HUS in mice. In addition, we analysed the effect of anti-oxidant agents as therapeutic tools to counteract Stx toxicity. We demonstrated that Stx induced an oxidative imbalance, evidenced by renal glutathione depletion and increased lipid membrane peroxidation. The increased ROS production by neutrophils may be one of the major sources of oxidative stress during Stx intoxication. All these parameters were ameliorated by anti-oxidants reducing platelet activation, renal damage and increasing survival. To conclude, Stx generates a pro-oxidative state that contributes to kidney failure, and exogenous anti-oxidants could be beneficial to counteract this pathogenic pathway. |
description |
Fil: Gomez, Sonia A. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Departamento de Bacteriología. Servicio Antimicrobianos; Argentina. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-09 |
dc.type.none.fl_str_mv |
info:ar-repo/semantics/articulo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
1365-2249 http://sgc.anlis.gob.ar/handle/123456789/1911 10.1111/cei.12124 |
identifier_str_mv |
1365-2249 10.1111/cei.12124 |
url |
http://sgc.anlis.gob.ar/handle/123456789/1911 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Clinical and experimental immunology |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
dc.source.none.fl_str_mv |
Clinical and Experimental Immunology 2013;173(3):463-72. reponame:Sistema de Gestión del Conocimiento ANLIS MALBRÁN instname:Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán" instacron:ANLIS |
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Sistema de Gestión del Conocimiento ANLIS MALBRÁN |
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Sistema de Gestión del Conocimiento ANLIS MALBRÁN |
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Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán" |
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ANLIS |
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ANLIS |
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Sistema de Gestión del Conocimiento ANLIS MALBRÁN - Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán" |
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biblioteca@anlis.gov.ar |
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