Redox metabolism in Trypanosoma cruzi. Biochemical characterization of dithiol glutaredoxin dependent cellular pathways
- Autores
- Márquez, Vanina Elizabet; Arias, Diego Gustavo; Chiribao, Maria L.; Faral Tello, Paula; Robello, Carlos; Iglesias, Alberto Alvaro; Guerrero, Sergio Adrian
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In Trypanosoma cruzi, the modification of thiols by glutathionylationedeglutathionylation and its potential relation to protective, regulatory or signaling functions have been scarcely explored. Herein we characterize a dithiolic glutaredoxin (TcrGrx), a redox protein with deglutathionylating activity, having potential functionality to control intracellular homeostasis of protein and non-protein thiols. The catalytic mechanism followed by TcrGrx was found dependent on thiol concentration. Results suggest that TcrGrx operates as a dithiolic or a monothiolic Grx, depending on GSH concentration. TcrGrx functionality to mediate reduction of protein and non-protein disulfides was studied. TcrGrx showed a preference for glutathionylated substrates respect to protein disulfides. From in vivo assays involving TcrGrx overexpressing parasites, we observed the contribution of the protein to increase the general resistance against oxidative damage and intracellular replication of the amastigote stage. Also, studies performed with epimastigotes overexpressing TcrGrx strongly suggest the involvement of the protein in a cellular pathway connecting an apoptotic stimulus and apoptotic-like cell death. Novel information is presented about the participation of this glutaredoxin not only in redox metabolism but also in redox signaling pathways in T. cruzi. The influence of TcrGrx in several parasite physiological processes suggests novel insights about the protein involvement in redox signaling.
Fil: Márquez, Vanina Elizabet. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina. Universidad Nacional del Litoral; Argentina
Fil: Arias, Diego Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina. Universidad Nacional del Litoral; Argentina
Fil: Chiribao, Maria L.. Instituto Pasteur de Montevideo. Unidad de Biologia Molecular; Uruguay. Universidad de la República. Facultad de Medicina. Departamento de Bioquímica; Uruguay
Fil: Faral Tello, Paula. Instituto Pasteur de Montevideo. Unidad de Biologia Molecular; Uruguay
Fil: Robello, Carlos. Instituto Pasteur de Montevideo. Unidad de Biologia Molecular; Uruguay. Universidad de la República. Facultad de Medicina. Departamento de Bioquímica; Uruguay
Fil: Iglesias, Alberto Alvaro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina. Universidad Nacional del Litoral; Argentina
Fil: Guerrero, Sergio Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina. Universidad Nacional del Litoral; Argentina - Materia
-
Trypanosoma
Redox Metabolism
Glutaredoxin
Thioltransferase
Deglutathionylation - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/14166
Ver los metadatos del registro completo
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Redox metabolism in Trypanosoma cruzi. Biochemical characterization of dithiol glutaredoxin dependent cellular pathwaysMárquez, Vanina ElizabetArias, Diego GustavoChiribao, Maria L.Faral Tello, PaulaRobello, CarlosIglesias, Alberto AlvaroGuerrero, Sergio AdrianTrypanosomaRedox MetabolismGlutaredoxinThioltransferaseDeglutathionylationhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1In Trypanosoma cruzi, the modification of thiols by glutathionylationedeglutathionylation and its potential relation to protective, regulatory or signaling functions have been scarcely explored. Herein we characterize a dithiolic glutaredoxin (TcrGrx), a redox protein with deglutathionylating activity, having potential functionality to control intracellular homeostasis of protein and non-protein thiols. The catalytic mechanism followed by TcrGrx was found dependent on thiol concentration. Results suggest that TcrGrx operates as a dithiolic or a monothiolic Grx, depending on GSH concentration. TcrGrx functionality to mediate reduction of protein and non-protein disulfides was studied. TcrGrx showed a preference for glutathionylated substrates respect to protein disulfides. From in vivo assays involving TcrGrx overexpressing parasites, we observed the contribution of the protein to increase the general resistance against oxidative damage and intracellular replication of the amastigote stage. Also, studies performed with epimastigotes overexpressing TcrGrx strongly suggest the involvement of the protein in a cellular pathway connecting an apoptotic stimulus and apoptotic-like cell death. Novel information is presented about the participation of this glutaredoxin not only in redox metabolism but also in redox signaling pathways in T. cruzi. The influence of TcrGrx in several parasite physiological processes suggests novel insights about the protein involvement in redox signaling.Fil: Márquez, Vanina Elizabet. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina. Universidad Nacional del Litoral; ArgentinaFil: Arias, Diego Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina. Universidad Nacional del Litoral; ArgentinaFil: Chiribao, Maria L.. Instituto Pasteur de Montevideo. Unidad de Biologia Molecular; Uruguay. Universidad de la República. Facultad de Medicina. Departamento de Bioquímica; UruguayFil: Faral Tello, Paula. Instituto Pasteur de Montevideo. Unidad de Biologia Molecular; UruguayFil: Robello, Carlos. Instituto Pasteur de Montevideo. Unidad de Biologia Molecular; Uruguay. Universidad de la República. Facultad de Medicina. Departamento de Bioquímica; UruguayFil: Iglesias, Alberto Alvaro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina. Universidad Nacional del Litoral; ArgentinaFil: Guerrero, Sergio Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina. Universidad Nacional del Litoral; ArgentinaElsevier Science2014-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/14166Márquez, Vanina Elizabet; Arias, Diego Gustavo; Chiribao, Maria L.; Faral Tello, Paula; Robello, Carlos; et al.; Redox metabolism in Trypanosoma cruzi. Biochemical characterization of dithiol glutaredoxin dependent cellular pathways; Elsevier Science; Biochimie; 106; 8-2014; 56-670300-9084enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0300908414002181info:eu-repo/semantics/altIdentifier/doi/10.1016/j.biochi.2014.07.027info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:40:18Zoai:ri.conicet.gov.ar:11336/14166instacron: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 09:40:18.502CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Redox metabolism in Trypanosoma cruzi. Biochemical characterization of dithiol glutaredoxin dependent cellular pathways |
title |
Redox metabolism in Trypanosoma cruzi. Biochemical characterization of dithiol glutaredoxin dependent cellular pathways |
spellingShingle |
Redox metabolism in Trypanosoma cruzi. Biochemical characterization of dithiol glutaredoxin dependent cellular pathways Márquez, Vanina Elizabet Trypanosoma Redox Metabolism Glutaredoxin Thioltransferase Deglutathionylation |
title_short |
Redox metabolism in Trypanosoma cruzi. Biochemical characterization of dithiol glutaredoxin dependent cellular pathways |
title_full |
Redox metabolism in Trypanosoma cruzi. Biochemical characterization of dithiol glutaredoxin dependent cellular pathways |
title_fullStr |
Redox metabolism in Trypanosoma cruzi. Biochemical characterization of dithiol glutaredoxin dependent cellular pathways |
title_full_unstemmed |
Redox metabolism in Trypanosoma cruzi. Biochemical characterization of dithiol glutaredoxin dependent cellular pathways |
title_sort |
Redox metabolism in Trypanosoma cruzi. Biochemical characterization of dithiol glutaredoxin dependent cellular pathways |
dc.creator.none.fl_str_mv |
Márquez, Vanina Elizabet Arias, Diego Gustavo Chiribao, Maria L. Faral Tello, Paula Robello, Carlos Iglesias, Alberto Alvaro Guerrero, Sergio Adrian |
author |
Márquez, Vanina Elizabet |
author_facet |
Márquez, Vanina Elizabet Arias, Diego Gustavo Chiribao, Maria L. Faral Tello, Paula Robello, Carlos Iglesias, Alberto Alvaro Guerrero, Sergio Adrian |
author_role |
author |
author2 |
Arias, Diego Gustavo Chiribao, Maria L. Faral Tello, Paula Robello, Carlos Iglesias, Alberto Alvaro Guerrero, Sergio Adrian |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
Trypanosoma Redox Metabolism Glutaredoxin Thioltransferase Deglutathionylation |
topic |
Trypanosoma Redox Metabolism Glutaredoxin Thioltransferase Deglutathionylation |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
In Trypanosoma cruzi, the modification of thiols by glutathionylationedeglutathionylation and its potential relation to protective, regulatory or signaling functions have been scarcely explored. Herein we characterize a dithiolic glutaredoxin (TcrGrx), a redox protein with deglutathionylating activity, having potential functionality to control intracellular homeostasis of protein and non-protein thiols. The catalytic mechanism followed by TcrGrx was found dependent on thiol concentration. Results suggest that TcrGrx operates as a dithiolic or a monothiolic Grx, depending on GSH concentration. TcrGrx functionality to mediate reduction of protein and non-protein disulfides was studied. TcrGrx showed a preference for glutathionylated substrates respect to protein disulfides. From in vivo assays involving TcrGrx overexpressing parasites, we observed the contribution of the protein to increase the general resistance against oxidative damage and intracellular replication of the amastigote stage. Also, studies performed with epimastigotes overexpressing TcrGrx strongly suggest the involvement of the protein in a cellular pathway connecting an apoptotic stimulus and apoptotic-like cell death. Novel information is presented about the participation of this glutaredoxin not only in redox metabolism but also in redox signaling pathways in T. cruzi. The influence of TcrGrx in several parasite physiological processes suggests novel insights about the protein involvement in redox signaling. Fil: Márquez, Vanina Elizabet. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina. Universidad Nacional del Litoral; Argentina Fil: Arias, Diego Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina. Universidad Nacional del Litoral; Argentina Fil: Chiribao, Maria L.. Instituto Pasteur de Montevideo. Unidad de Biologia Molecular; Uruguay. Universidad de la República. Facultad de Medicina. Departamento de Bioquímica; Uruguay Fil: Faral Tello, Paula. Instituto Pasteur de Montevideo. Unidad de Biologia Molecular; Uruguay Fil: Robello, Carlos. Instituto Pasteur de Montevideo. Unidad de Biologia Molecular; Uruguay. Universidad de la República. Facultad de Medicina. Departamento de Bioquímica; Uruguay Fil: Iglesias, Alberto Alvaro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina. Universidad Nacional del Litoral; Argentina Fil: Guerrero, Sergio Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina. Universidad Nacional del Litoral; Argentina |
description |
In Trypanosoma cruzi, the modification of thiols by glutathionylationedeglutathionylation and its potential relation to protective, regulatory or signaling functions have been scarcely explored. Herein we characterize a dithiolic glutaredoxin (TcrGrx), a redox protein with deglutathionylating activity, having potential functionality to control intracellular homeostasis of protein and non-protein thiols. The catalytic mechanism followed by TcrGrx was found dependent on thiol concentration. Results suggest that TcrGrx operates as a dithiolic or a monothiolic Grx, depending on GSH concentration. TcrGrx functionality to mediate reduction of protein and non-protein disulfides was studied. TcrGrx showed a preference for glutathionylated substrates respect to protein disulfides. From in vivo assays involving TcrGrx overexpressing parasites, we observed the contribution of the protein to increase the general resistance against oxidative damage and intracellular replication of the amastigote stage. Also, studies performed with epimastigotes overexpressing TcrGrx strongly suggest the involvement of the protein in a cellular pathway connecting an apoptotic stimulus and apoptotic-like cell death. Novel information is presented about the participation of this glutaredoxin not only in redox metabolism but also in redox signaling pathways in T. cruzi. The influence of TcrGrx in several parasite physiological processes suggests novel insights about the protein involvement in redox signaling. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-08 |
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/11336/14166 Márquez, Vanina Elizabet; Arias, Diego Gustavo; Chiribao, Maria L.; Faral Tello, Paula; Robello, Carlos; et al.; Redox metabolism in Trypanosoma cruzi. Biochemical characterization of dithiol glutaredoxin dependent cellular pathways; Elsevier Science; Biochimie; 106; 8-2014; 56-67 0300-9084 |
url |
http://hdl.handle.net/11336/14166 |
identifier_str_mv |
Márquez, Vanina Elizabet; Arias, Diego Gustavo; Chiribao, Maria L.; Faral Tello, Paula; Robello, Carlos; et al.; Redox metabolism in Trypanosoma cruzi. Biochemical characterization of dithiol glutaredoxin dependent cellular pathways; Elsevier Science; Biochimie; 106; 8-2014; 56-67 0300-9084 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0300908414002181 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.biochi.2014.07.027 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
dc.format.none.fl_str_mv |
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 |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
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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1844613275279425536 |
score |
13.070432 |