Polyamine depletion inhibits the autophagic response modulating Trypanosoma cruzi infectivity

Autores
Vanrell, Maria Cristina; Cueto, Juan Agustin; Barclay, Jeremías José; Carrillo, Carolina; Colombo, Maria Isabel; Gottlieb, Roberta A.; Romano, Patricia Silvia
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Autophagy is a cell process that in normal conditions serves to recycle cytoplasmic components and aged or damaged organelles. The autophagic pathway has been implicated in many physiological and pathological situations, even during the course of infection by intracellular pathogens. Many compounds are currently used to positively or negatively modulate the autophagic response. Recently it was demonstrated that the polyamine spermidine is a physiological inducer of autophagy in eukaryotic cells. We have previously shown that the etiological agent of Chagas disease, the protozoan parasite Trypanosoma cruzi, interacts with autophagic compartments during host cell invasion and that preactivation of autophagy significantly increases host cell colonization by this parasite. In the present report we have analyzed the effect of polyamine depletion on the autophagic response of the host cell and on T. cruzi infectivity. Our data showed that depleting intracellular polyamines by inhibiting the biosynthetic enzyme ornithine decarboxylase with difluoromethylornithine (DFMO) suppressed the induction of autophagy in response to starvation or rapamycin treatment in two cell lines. This effect was associated with a decrease in the levels of LC3 and ATG5, two proteins required for autophagosome formation. As a consequence of inhibiting host cell autophagy, DFMO impaired T. cruzi colonization, indicating that polyamines and autophagy facilitate parasite infection. Thus, our results point to DFMO as a novel autophagy inhibitor. While other autophagy inhibitors such as wortmannin and 3-methyladenine are nonspecific and potentially toxic, DFMO is an FDA-approved drug that may have value in limiting autophagy and the spread of the infection in Chagas disease and possibly other pathological settings.
Fil: Vanrell, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza. Laboratorio de Biología Celular y Molecular; Argentina;
Fil: Cueto, Juan Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza. Laboratorio de Biología Celular y Molecular; Argentina;
Fil: Barclay, Jeremías José. Comisión Nacional de Energía Atómica. Gerencia del Area de Seguridad Nuclear y Ambiente. Instituto de Energía y Desarrollo Sustentable; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Ciencia y Tecnología;
Fil: Carrillo, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Ciencia y Tecnología;
Fil: Colombo, Maria Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza. Laboratorio de Biología Celular y Molecular; Argentina;
Fil: Gottlieb, Roberta A.. San Diego State University. Donald P. Shiley BioScience Center; Estados Unidos de América;
Fil: Romano, Patricia Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza. Laboratorio de Biología Celular y Molecular; Argentina;
Materia
Trypanosoma Cruzi
Atg5
Dfmo
Lc3
Autophagy
Polyamines
Spermidine
Autophagic Response
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/1676

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network_name_str CONICET Digital (CONICET)
spelling Polyamine depletion inhibits the autophagic response modulating Trypanosoma cruzi infectivityVanrell, Maria CristinaCueto, Juan AgustinBarclay, Jeremías JoséCarrillo, CarolinaColombo, Maria IsabelGottlieb, Roberta A.Romano, Patricia SilviaTrypanosoma CruziAtg5DfmoLc3AutophagyPolyaminesSpermidineAutophagic Responsehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Autophagy is a cell process that in normal conditions serves to recycle cytoplasmic components and aged or damaged organelles. The autophagic pathway has been implicated in many physiological and pathological situations, even during the course of infection by intracellular pathogens. Many compounds are currently used to positively or negatively modulate the autophagic response. Recently it was demonstrated that the polyamine spermidine is a physiological inducer of autophagy in eukaryotic cells. We have previously shown that the etiological agent of Chagas disease, the protozoan parasite Trypanosoma cruzi, interacts with autophagic compartments during host cell invasion and that preactivation of autophagy significantly increases host cell colonization by this parasite. In the present report we have analyzed the effect of polyamine depletion on the autophagic response of the host cell and on T. cruzi infectivity. Our data showed that depleting intracellular polyamines by inhibiting the biosynthetic enzyme ornithine decarboxylase with difluoromethylornithine (DFMO) suppressed the induction of autophagy in response to starvation or rapamycin treatment in two cell lines. This effect was associated with a decrease in the levels of LC3 and ATG5, two proteins required for autophagosome formation. As a consequence of inhibiting host cell autophagy, DFMO impaired T. cruzi colonization, indicating that polyamines and autophagy facilitate parasite infection. Thus, our results point to DFMO as a novel autophagy inhibitor. While other autophagy inhibitors such as wortmannin and 3-methyladenine are nonspecific and potentially toxic, DFMO is an FDA-approved drug that may have value in limiting autophagy and the spread of the infection in Chagas disease and possibly other pathological settings.Fil: Vanrell, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza. Laboratorio de Biología Celular y Molecular; Argentina;Fil: Cueto, Juan Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza. Laboratorio de Biología Celular y Molecular; Argentina;Fil: Barclay, Jeremías José. Comisión Nacional de Energía Atómica. Gerencia del Area de Seguridad Nuclear y Ambiente. Instituto de Energía y Desarrollo Sustentable; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Ciencia y Tecnología;Fil: Carrillo, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Ciencia y Tecnología;Fil: Colombo, Maria Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza. Laboratorio de Biología Celular y Molecular; Argentina;Fil: Gottlieb, Roberta A.. San Diego State University. Donald P. Shiley BioScience Center; Estados Unidos de América;Fil: Romano, Patricia Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza. Laboratorio de Biología Celular y Molecular; Argentina;Taylor & Francis2013-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/1676Vanrell, Maria Cristina; Cueto, Juan Agustin; Barclay, Jeremías José; Carrillo, Carolina; Colombo, Maria Isabel; et al.; Polyamine depletion inhibits the autophagic response modulating Trypanosoma cruzi infectivity; Taylor & Francis; Autophagy; 9; 7; 7-2013; 1080-10931554-8627enginfo:eu-repo/semantics/altIdentifier/doi/DOI:10.4161/auto.24709info:eu-repo/semantics/altIdentifier/url/http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3722317/info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/pdf/10.4161/auto.24709info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:36:19Zoai:ri.conicet.gov.ar:11336/1676instacron: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 10:36:19.658CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Polyamine depletion inhibits the autophagic response modulating Trypanosoma cruzi infectivity
title Polyamine depletion inhibits the autophagic response modulating Trypanosoma cruzi infectivity
spellingShingle Polyamine depletion inhibits the autophagic response modulating Trypanosoma cruzi infectivity
Vanrell, Maria Cristina
Trypanosoma Cruzi
Atg5
Dfmo
Lc3
Autophagy
Polyamines
Spermidine
Autophagic Response
title_short Polyamine depletion inhibits the autophagic response modulating Trypanosoma cruzi infectivity
title_full Polyamine depletion inhibits the autophagic response modulating Trypanosoma cruzi infectivity
title_fullStr Polyamine depletion inhibits the autophagic response modulating Trypanosoma cruzi infectivity
title_full_unstemmed Polyamine depletion inhibits the autophagic response modulating Trypanosoma cruzi infectivity
title_sort Polyamine depletion inhibits the autophagic response modulating Trypanosoma cruzi infectivity
dc.creator.none.fl_str_mv Vanrell, Maria Cristina
Cueto, Juan Agustin
Barclay, Jeremías José
Carrillo, Carolina
Colombo, Maria Isabel
Gottlieb, Roberta A.
Romano, Patricia Silvia
author Vanrell, Maria Cristina
author_facet Vanrell, Maria Cristina
Cueto, Juan Agustin
Barclay, Jeremías José
Carrillo, Carolina
Colombo, Maria Isabel
Gottlieb, Roberta A.
Romano, Patricia Silvia
author_role author
author2 Cueto, Juan Agustin
Barclay, Jeremías José
Carrillo, Carolina
Colombo, Maria Isabel
Gottlieb, Roberta A.
Romano, Patricia Silvia
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Trypanosoma Cruzi
Atg5
Dfmo
Lc3
Autophagy
Polyamines
Spermidine
Autophagic Response
topic Trypanosoma Cruzi
Atg5
Dfmo
Lc3
Autophagy
Polyamines
Spermidine
Autophagic Response
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Autophagy is a cell process that in normal conditions serves to recycle cytoplasmic components and aged or damaged organelles. The autophagic pathway has been implicated in many physiological and pathological situations, even during the course of infection by intracellular pathogens. Many compounds are currently used to positively or negatively modulate the autophagic response. Recently it was demonstrated that the polyamine spermidine is a physiological inducer of autophagy in eukaryotic cells. We have previously shown that the etiological agent of Chagas disease, the protozoan parasite Trypanosoma cruzi, interacts with autophagic compartments during host cell invasion and that preactivation of autophagy significantly increases host cell colonization by this parasite. In the present report we have analyzed the effect of polyamine depletion on the autophagic response of the host cell and on T. cruzi infectivity. Our data showed that depleting intracellular polyamines by inhibiting the biosynthetic enzyme ornithine decarboxylase with difluoromethylornithine (DFMO) suppressed the induction of autophagy in response to starvation or rapamycin treatment in two cell lines. This effect was associated with a decrease in the levels of LC3 and ATG5, two proteins required for autophagosome formation. As a consequence of inhibiting host cell autophagy, DFMO impaired T. cruzi colonization, indicating that polyamines and autophagy facilitate parasite infection. Thus, our results point to DFMO as a novel autophagy inhibitor. While other autophagy inhibitors such as wortmannin and 3-methyladenine are nonspecific and potentially toxic, DFMO is an FDA-approved drug that may have value in limiting autophagy and the spread of the infection in Chagas disease and possibly other pathological settings.
Fil: Vanrell, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza. Laboratorio de Biología Celular y Molecular; Argentina;
Fil: Cueto, Juan Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza. Laboratorio de Biología Celular y Molecular; Argentina;
Fil: Barclay, Jeremías José. Comisión Nacional de Energía Atómica. Gerencia del Area de Seguridad Nuclear y Ambiente. Instituto de Energía y Desarrollo Sustentable; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Ciencia y Tecnología;
Fil: Carrillo, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Ciencia y Tecnología;
Fil: Colombo, Maria Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza. Laboratorio de Biología Celular y Molecular; Argentina;
Fil: Gottlieb, Roberta A.. San Diego State University. Donald P. Shiley BioScience Center; Estados Unidos de América;
Fil: Romano, Patricia Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Mendoza. Instituto Histología y Embriología de Mendoza. Laboratorio de Biología Celular y Molecular; Argentina;
description Autophagy is a cell process that in normal conditions serves to recycle cytoplasmic components and aged or damaged organelles. The autophagic pathway has been implicated in many physiological and pathological situations, even during the course of infection by intracellular pathogens. Many compounds are currently used to positively or negatively modulate the autophagic response. Recently it was demonstrated that the polyamine spermidine is a physiological inducer of autophagy in eukaryotic cells. We have previously shown that the etiological agent of Chagas disease, the protozoan parasite Trypanosoma cruzi, interacts with autophagic compartments during host cell invasion and that preactivation of autophagy significantly increases host cell colonization by this parasite. In the present report we have analyzed the effect of polyamine depletion on the autophagic response of the host cell and on T. cruzi infectivity. Our data showed that depleting intracellular polyamines by inhibiting the biosynthetic enzyme ornithine decarboxylase with difluoromethylornithine (DFMO) suppressed the induction of autophagy in response to starvation or rapamycin treatment in two cell lines. This effect was associated with a decrease in the levels of LC3 and ATG5, two proteins required for autophagosome formation. As a consequence of inhibiting host cell autophagy, DFMO impaired T. cruzi colonization, indicating that polyamines and autophagy facilitate parasite infection. Thus, our results point to DFMO as a novel autophagy inhibitor. While other autophagy inhibitors such as wortmannin and 3-methyladenine are nonspecific and potentially toxic, DFMO is an FDA-approved drug that may have value in limiting autophagy and the spread of the infection in Chagas disease and possibly other pathological settings.
publishDate 2013
dc.date.none.fl_str_mv 2013-07
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/11336/1676
Vanrell, Maria Cristina; Cueto, Juan Agustin; Barclay, Jeremías José; Carrillo, Carolina; Colombo, Maria Isabel; et al.; Polyamine depletion inhibits the autophagic response modulating Trypanosoma cruzi infectivity; Taylor & Francis; Autophagy; 9; 7; 7-2013; 1080-1093
1554-8627
url http://hdl.handle.net/11336/1676
identifier_str_mv Vanrell, Maria Cristina; Cueto, Juan Agustin; Barclay, Jeremías José; Carrillo, Carolina; Colombo, Maria Isabel; et al.; Polyamine depletion inhibits the autophagic response modulating Trypanosoma cruzi infectivity; Taylor & Francis; Autophagy; 9; 7; 7-2013; 1080-1093
1554-8627
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/DOI:10.4161/auto.24709
info:eu-repo/semantics/altIdentifier/url/http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3722317/
info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/pdf/10.4161/auto.24709
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
dc.publisher.none.fl_str_mv Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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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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