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
Sistema de Gestión del Conocimiento ANLIS MALBRÁN
Institución
Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán"
OAI Identificador
oai:sgc.anlis.gob.ar:Publications/123456789/1911

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network_acronym_str SGCANLIS
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network_name_str Sistema de Gestión del Conocimiento ANLIS MALBRÁN
spelling 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
reponame_str Sistema de Gestión del Conocimiento ANLIS MALBRÁN
collection Sistema de Gestión del Conocimiento ANLIS MALBRÁN
instname_str Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán"
instacron_str ANLIS
institution ANLIS
repository.name.fl_str_mv Sistema de Gestión del Conocimiento ANLIS MALBRÁN - Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán"
repository.mail.fl_str_mv biblioteca@anlis.gov.ar
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