17β-estradiol abrogates apoptosis in murine skeletal muscle cells through estrogen receptors: Role of the phosphatidylinositol 3-kinase/Akt pathway

Autores
Vasconsuelo, Andrea Anahi; Milanesi, Lorena Magdalena; Boland, Ricardo Leopoldo
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Estrogens can regulate apoptosis in various cellular systems. The present study shows that 17β-estradiol (E2), at physiological concentrations, abrogates DNA damage, poly (ADP-ribose) polymerase cleavage, and mitochondrial cytochrome c release induced by H2O2 or etoposide in mouse skeletal muscle C2C12 cells. This protective action, which involved P13K/Akt activation and Bcl-2 associated death agonist (BAD) phosphorylation, was inhibited by antibodies against the estrogen receptor (ER) α or β isoforms, or transfecting siRNA specific for each isoform. The inhibition of the antiapoptotic action of E2 at the mitochondrial level was more pronounced when ER-β was immunoneutralized or suppressed by mRNA silencing, whereas transfection of C2C12 cells with either ER-α siRNA or ER-β siRNA blocked the activation of Akt by E2, suggesting differential involvement of ER isoforms depending on the step of the apoptotic/survival pathway evaluated. These results indicate that E2 exerts antiapoptotic effects in skeletal muscle cells which are mediated by ER-β and ER-α and involve the PI3K/Akt pathway.
Fil: Vasconsuelo, Andrea Anahi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Milanesi, Lorena Magdalena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina
Fil: Boland, Ricardo Leopoldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina
Materia
Apoptosis
Estradiol
C2c12
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:11336/76523
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling 17β-estradiol abrogates apoptosis in murine skeletal muscle cells through estrogen receptors: Role of the phosphatidylinositol 3-kinase/Akt pathwayVasconsuelo, Andrea AnahiMilanesi, Lorena MagdalenaBoland, Ricardo LeopoldoApoptosisEstradiolC2c12https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Estrogens can regulate apoptosis in various cellular systems. The present study shows that 17β-estradiol (E2), at physiological concentrations, abrogates DNA damage, poly (ADP-ribose) polymerase cleavage, and mitochondrial cytochrome c release induced by H2O2 or etoposide in mouse skeletal muscle C2C12 cells. This protective action, which involved P13K/Akt activation and Bcl-2 associated death agonist (BAD) phosphorylation, was inhibited by antibodies against the estrogen receptor (ER) α or β isoforms, or transfecting siRNA specific for each isoform. The inhibition of the antiapoptotic action of E2 at the mitochondrial level was more pronounced when ER-β was immunoneutralized or suppressed by mRNA silencing, whereas transfection of C2C12 cells with either ER-α siRNA or ER-β siRNA blocked the activation of Akt by E2, suggesting differential involvement of ER isoforms depending on the step of the apoptotic/survival pathway evaluated. These results indicate that E2 exerts antiapoptotic effects in skeletal muscle cells which are mediated by ER-β and ER-α and involve the PI3K/Akt pathway.Fil: Vasconsuelo, Andrea Anahi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Milanesi, Lorena Magdalena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; ArgentinaFil: Boland, Ricardo Leopoldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; ArgentinaBioScientifica2008-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/76523Vasconsuelo, Andrea Anahi; Milanesi, Lorena Magdalena; Boland, Ricardo Leopoldo; 17β-estradiol abrogates apoptosis in murine skeletal muscle cells through estrogen receptors: Role of the phosphatidylinositol 3-kinase/Akt pathway; BioScientifica; Journal of Endocrinology; 196; 2; 2-2008; 385-3970022-0795CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://joe.bioscientifica.com/view/journals/joe/196/2/385.xmlinfo:eu-repo/semantics/altIdentifier/doi/10.1677/JOE-07-0250info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-05T09:49:56Zoai:ri.conicet.gov.ar:11336/76523instacron: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:34982025-11-05 09:49:57.054CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv 17β-estradiol abrogates apoptosis in murine skeletal muscle cells through estrogen receptors: Role of the phosphatidylinositol 3-kinase/Akt pathway
title 17β-estradiol abrogates apoptosis in murine skeletal muscle cells through estrogen receptors: Role of the phosphatidylinositol 3-kinase/Akt pathway
spellingShingle 17β-estradiol abrogates apoptosis in murine skeletal muscle cells through estrogen receptors: Role of the phosphatidylinositol 3-kinase/Akt pathway
Vasconsuelo, Andrea Anahi
Apoptosis
Estradiol
C2c12
title_short 17β-estradiol abrogates apoptosis in murine skeletal muscle cells through estrogen receptors: Role of the phosphatidylinositol 3-kinase/Akt pathway
title_full 17β-estradiol abrogates apoptosis in murine skeletal muscle cells through estrogen receptors: Role of the phosphatidylinositol 3-kinase/Akt pathway
title_fullStr 17β-estradiol abrogates apoptosis in murine skeletal muscle cells through estrogen receptors: Role of the phosphatidylinositol 3-kinase/Akt pathway
title_full_unstemmed 17β-estradiol abrogates apoptosis in murine skeletal muscle cells through estrogen receptors: Role of the phosphatidylinositol 3-kinase/Akt pathway
title_sort 17β-estradiol abrogates apoptosis in murine skeletal muscle cells through estrogen receptors: Role of the phosphatidylinositol 3-kinase/Akt pathway
dc.creator.none.fl_str_mv Vasconsuelo, Andrea Anahi
Milanesi, Lorena Magdalena
Boland, Ricardo Leopoldo
author Vasconsuelo, Andrea Anahi
author_facet Vasconsuelo, Andrea Anahi
Milanesi, Lorena Magdalena
Boland, Ricardo Leopoldo
author_role author
author2 Milanesi, Lorena Magdalena
Boland, Ricardo Leopoldo
author2_role author
author
dc.subject.none.fl_str_mv Apoptosis
Estradiol
C2c12
topic Apoptosis
Estradiol
C2c12
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Estrogens can regulate apoptosis in various cellular systems. The present study shows that 17β-estradiol (E2), at physiological concentrations, abrogates DNA damage, poly (ADP-ribose) polymerase cleavage, and mitochondrial cytochrome c release induced by H2O2 or etoposide in mouse skeletal muscle C2C12 cells. This protective action, which involved P13K/Akt activation and Bcl-2 associated death agonist (BAD) phosphorylation, was inhibited by antibodies against the estrogen receptor (ER) α or β isoforms, or transfecting siRNA specific for each isoform. The inhibition of the antiapoptotic action of E2 at the mitochondrial level was more pronounced when ER-β was immunoneutralized or suppressed by mRNA silencing, whereas transfection of C2C12 cells with either ER-α siRNA or ER-β siRNA blocked the activation of Akt by E2, suggesting differential involvement of ER isoforms depending on the step of the apoptotic/survival pathway evaluated. These results indicate that E2 exerts antiapoptotic effects in skeletal muscle cells which are mediated by ER-β and ER-α and involve the PI3K/Akt pathway.
Fil: Vasconsuelo, Andrea Anahi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Milanesi, Lorena Magdalena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina
Fil: Boland, Ricardo Leopoldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina
description Estrogens can regulate apoptosis in various cellular systems. The present study shows that 17β-estradiol (E2), at physiological concentrations, abrogates DNA damage, poly (ADP-ribose) polymerase cleavage, and mitochondrial cytochrome c release induced by H2O2 or etoposide in mouse skeletal muscle C2C12 cells. This protective action, which involved P13K/Akt activation and Bcl-2 associated death agonist (BAD) phosphorylation, was inhibited by antibodies against the estrogen receptor (ER) α or β isoforms, or transfecting siRNA specific for each isoform. The inhibition of the antiapoptotic action of E2 at the mitochondrial level was more pronounced when ER-β was immunoneutralized or suppressed by mRNA silencing, whereas transfection of C2C12 cells with either ER-α siRNA or ER-β siRNA blocked the activation of Akt by E2, suggesting differential involvement of ER isoforms depending on the step of the apoptotic/survival pathway evaluated. These results indicate that E2 exerts antiapoptotic effects in skeletal muscle cells which are mediated by ER-β and ER-α and involve the PI3K/Akt pathway.
publishDate 2008
dc.date.none.fl_str_mv 2008-02
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/11336/76523
Vasconsuelo, Andrea Anahi; Milanesi, Lorena Magdalena; Boland, Ricardo Leopoldo; 17β-estradiol abrogates apoptosis in murine skeletal muscle cells through estrogen receptors: Role of the phosphatidylinositol 3-kinase/Akt pathway; BioScientifica; Journal of Endocrinology; 196; 2; 2-2008; 385-397
0022-0795
CONICET Digital
CONICET
url http://hdl.handle.net/11336/76523
identifier_str_mv Vasconsuelo, Andrea Anahi; Milanesi, Lorena Magdalena; Boland, Ricardo Leopoldo; 17β-estradiol abrogates apoptosis in murine skeletal muscle cells through estrogen receptors: Role of the phosphatidylinositol 3-kinase/Akt pathway; BioScientifica; Journal of Endocrinology; 196; 2; 2-2008; 385-397
0022-0795
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://joe.bioscientifica.com/view/journals/joe/196/2/385.xml
info:eu-repo/semantics/altIdentifier/doi/10.1677/JOE-07-0250
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
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv BioScientifica
publisher.none.fl_str_mv BioScientifica
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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score 13.087074

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