Crosstalk between ERα and NFκB transcription factors on E2 induced leptin expression in placental cells
- Autores
- Shanton, Malena; Camisay, Maria Fernanda; Pérez Pérez, Antonio; Maskin, Bernardo; Casale, Roberto; Sánchez Margalet, Victor; Erlejman, Alejandra Giselle; Varone, Cecilia Laura
- Año de publicación
- 2019
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- Objectives: Leptin is a key hormone in placental physiology. It regulates trophoblast proliferation, inhibits apoptosis, stimulates protein synthesis, and regulates fetal growth and development. It plays an important role in reproduction mainly because it has been suggested to have function in the placenta during the gestation, where leptin and leptin receptors expression were detected. Previous results from our lab demonstrated that estradiol (E2) regulates leptin expression involving genomic and nongenomic effects. In the present work, we analysed the crosstalk between estrogen receptor alpha (ERa) and NFkB transcription factors on E2 induced leptin expression in human trophoblast cells. Methods: BeWo cells, cultured and human term placental explants were used. Western blot, immunocytochemistry, co-immunoprecipitation and transfection assays were carried out. Ethical review committee at the Alejandro Posadas National Hospital approved all procedures. Results: We found that E2 treatment significantly enhanced the NFkB member p65 expression both in BeWo cells and human term placental explants. Moreover E2 increased IkBa phosphorylation and NFkB transcriptional activity determined by reporter analysis. We also evaluated the localization of ERa and p65 NFkB subunit in BeWo cells by immunofluorescence assay. We found that both proteins are located in the cytoplasm and migrate to the nucleus when they are overexpressed. Besides ERa and p65 form a complex determined by co-immunoprecipitation, as previously seen. These findings suggest that the transcription factor NFkB, might be affecting estradiol leptin induction. Finally through transient transfection analysis we observed that the overexpression of RelA (p65) and HEGO (ERa) increases basal transcriptional activity of leptin promoter. Conclusion: These results suggest that leptin expression is tightly regulated and help to comprehend the mechanisms where E2 regulated leptin expression possibly involving the cooperation between ERa and NFkB transcription factors.
Fil: Shanton, Malena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Camisay, Maria Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Pérez Pérez, Antonio. Universidad de Sevilla; España
Fil: Maskin, Bernardo. Hospital Nacional Profesor Alejandro Posadas; Argentina
Fil: Casale, Roberto. Hospital Nacional Profesor Alejandro Posadas; Argentina
Fil: Sánchez Margalet, Victor. Universidad de Sevilla; España
Fil: Erlejman, Alejandra Giselle. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Varone, Cecilia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
International Federation of Placenta Associations Meeting y VIII Simposio Latinoamericano de Interacción Materno-Fetal y Placenta
Buenos Aires
Argentina
International Federation of Placenta Associations - Materia
-
Leptin
NFkB
ERalfa - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/135669
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Crosstalk between ERα and NFκB transcription factors on E2 induced leptin expression in placental cellsShanton, MalenaCamisay, Maria FernandaPérez Pérez, AntonioMaskin, BernardoCasale, RobertoSánchez Margalet, VictorErlejman, Alejandra GiselleVarone, Cecilia LauraLeptinNFkBERalfahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Objectives: Leptin is a key hormone in placental physiology. It regulates trophoblast proliferation, inhibits apoptosis, stimulates protein synthesis, and regulates fetal growth and development. It plays an important role in reproduction mainly because it has been suggested to have function in the placenta during the gestation, where leptin and leptin receptors expression were detected. Previous results from our lab demonstrated that estradiol (E2) regulates leptin expression involving genomic and nongenomic effects. In the present work, we analysed the crosstalk between estrogen receptor alpha (ERa) and NFkB transcription factors on E2 induced leptin expression in human trophoblast cells. Methods: BeWo cells, cultured and human term placental explants were used. Western blot, immunocytochemistry, co-immunoprecipitation and transfection assays were carried out. Ethical review committee at the Alejandro Posadas National Hospital approved all procedures. Results: We found that E2 treatment significantly enhanced the NFkB member p65 expression both in BeWo cells and human term placental explants. Moreover E2 increased IkBa phosphorylation and NFkB transcriptional activity determined by reporter analysis. We also evaluated the localization of ERa and p65 NFkB subunit in BeWo cells by immunofluorescence assay. We found that both proteins are located in the cytoplasm and migrate to the nucleus when they are overexpressed. Besides ERa and p65 form a complex determined by co-immunoprecipitation, as previously seen. These findings suggest that the transcription factor NFkB, might be affecting estradiol leptin induction. Finally through transient transfection analysis we observed that the overexpression of RelA (p65) and HEGO (ERa) increases basal transcriptional activity of leptin promoter. Conclusion: These results suggest that leptin expression is tightly regulated and help to comprehend the mechanisms where E2 regulated leptin expression possibly involving the cooperation between ERa and NFkB transcription factors.Fil: Shanton, Malena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Camisay, Maria Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Pérez Pérez, Antonio. Universidad de Sevilla; EspañaFil: Maskin, Bernardo. Hospital Nacional Profesor Alejandro Posadas; ArgentinaFil: Casale, Roberto. Hospital Nacional Profesor Alejandro Posadas; ArgentinaFil: Sánchez Margalet, Victor. Universidad de Sevilla; EspañaFil: Erlejman, Alejandra Giselle. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Varone, Cecilia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaInternational Federation of Placenta Associations Meeting y VIII Simposio Latinoamericano de Interacción Materno-Fetal y PlacentaBuenos AiresArgentinaInternational Federation of Placenta AssociationsElsevier2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/135669Crosstalk between ERα and NFκB transcription factors on E2 induced leptin expression in placental cells; International Federation of Placenta Associations Meeting y VIII Simposio Latinoamericano de Interacción Materno-Fetal y Placenta; Buenos Aires; Argentina; 2019; e33-e330143-4004CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0143400419302383info:eu-repo/semantics/altIdentifier/doi/10.1016/j.placenta.2019.06.109Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:39:13Zoai:ri.conicet.gov.ar:11336/135669instacron: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 10:39:13.996CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Crosstalk between ERα and NFκB transcription factors on E2 induced leptin expression in placental cells |
title |
Crosstalk between ERα and NFκB transcription factors on E2 induced leptin expression in placental cells |
spellingShingle |
Crosstalk between ERα and NFκB transcription factors on E2 induced leptin expression in placental cells Shanton, Malena Leptin NFkB ERalfa |
title_short |
Crosstalk between ERα and NFκB transcription factors on E2 induced leptin expression in placental cells |
title_full |
Crosstalk between ERα and NFκB transcription factors on E2 induced leptin expression in placental cells |
title_fullStr |
Crosstalk between ERα and NFκB transcription factors on E2 induced leptin expression in placental cells |
title_full_unstemmed |
Crosstalk between ERα and NFκB transcription factors on E2 induced leptin expression in placental cells |
title_sort |
Crosstalk between ERα and NFκB transcription factors on E2 induced leptin expression in placental cells |
dc.creator.none.fl_str_mv |
Shanton, Malena Camisay, Maria Fernanda Pérez Pérez, Antonio Maskin, Bernardo Casale, Roberto Sánchez Margalet, Victor Erlejman, Alejandra Giselle Varone, Cecilia Laura |
author |
Shanton, Malena |
author_facet |
Shanton, Malena Camisay, Maria Fernanda Pérez Pérez, Antonio Maskin, Bernardo Casale, Roberto Sánchez Margalet, Victor Erlejman, Alejandra Giselle Varone, Cecilia Laura |
author_role |
author |
author2 |
Camisay, Maria Fernanda Pérez Pérez, Antonio Maskin, Bernardo Casale, Roberto Sánchez Margalet, Victor Erlejman, Alejandra Giselle Varone, Cecilia Laura |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
Leptin NFkB ERalfa |
topic |
Leptin NFkB ERalfa |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Objectives: Leptin is a key hormone in placental physiology. It regulates trophoblast proliferation, inhibits apoptosis, stimulates protein synthesis, and regulates fetal growth and development. It plays an important role in reproduction mainly because it has been suggested to have function in the placenta during the gestation, where leptin and leptin receptors expression were detected. Previous results from our lab demonstrated that estradiol (E2) regulates leptin expression involving genomic and nongenomic effects. In the present work, we analysed the crosstalk between estrogen receptor alpha (ERa) and NFkB transcription factors on E2 induced leptin expression in human trophoblast cells. Methods: BeWo cells, cultured and human term placental explants were used. Western blot, immunocytochemistry, co-immunoprecipitation and transfection assays were carried out. Ethical review committee at the Alejandro Posadas National Hospital approved all procedures. Results: We found that E2 treatment significantly enhanced the NFkB member p65 expression both in BeWo cells and human term placental explants. Moreover E2 increased IkBa phosphorylation and NFkB transcriptional activity determined by reporter analysis. We also evaluated the localization of ERa and p65 NFkB subunit in BeWo cells by immunofluorescence assay. We found that both proteins are located in the cytoplasm and migrate to the nucleus when they are overexpressed. Besides ERa and p65 form a complex determined by co-immunoprecipitation, as previously seen. These findings suggest that the transcription factor NFkB, might be affecting estradiol leptin induction. Finally through transient transfection analysis we observed that the overexpression of RelA (p65) and HEGO (ERa) increases basal transcriptional activity of leptin promoter. Conclusion: These results suggest that leptin expression is tightly regulated and help to comprehend the mechanisms where E2 regulated leptin expression possibly involving the cooperation between ERa and NFkB transcription factors. Fil: Shanton, Malena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina Fil: Camisay, Maria Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina Fil: Pérez Pérez, Antonio. Universidad de Sevilla; España Fil: Maskin, Bernardo. Hospital Nacional Profesor Alejandro Posadas; Argentina Fil: Casale, Roberto. Hospital Nacional Profesor Alejandro Posadas; Argentina Fil: Sánchez Margalet, Victor. Universidad de Sevilla; España Fil: Erlejman, Alejandra Giselle. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina Fil: Varone, Cecilia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina International Federation of Placenta Associations Meeting y VIII Simposio Latinoamericano de Interacción Materno-Fetal y Placenta Buenos Aires Argentina International Federation of Placenta Associations |
description |
Objectives: Leptin is a key hormone in placental physiology. It regulates trophoblast proliferation, inhibits apoptosis, stimulates protein synthesis, and regulates fetal growth and development. It plays an important role in reproduction mainly because it has been suggested to have function in the placenta during the gestation, where leptin and leptin receptors expression were detected. Previous results from our lab demonstrated that estradiol (E2) regulates leptin expression involving genomic and nongenomic effects. In the present work, we analysed the crosstalk between estrogen receptor alpha (ERa) and NFkB transcription factors on E2 induced leptin expression in human trophoblast cells. Methods: BeWo cells, cultured and human term placental explants were used. Western blot, immunocytochemistry, co-immunoprecipitation and transfection assays were carried out. Ethical review committee at the Alejandro Posadas National Hospital approved all procedures. Results: We found that E2 treatment significantly enhanced the NFkB member p65 expression both in BeWo cells and human term placental explants. Moreover E2 increased IkBa phosphorylation and NFkB transcriptional activity determined by reporter analysis. We also evaluated the localization of ERa and p65 NFkB subunit in BeWo cells by immunofluorescence assay. We found that both proteins are located in the cytoplasm and migrate to the nucleus when they are overexpressed. Besides ERa and p65 form a complex determined by co-immunoprecipitation, as previously seen. These findings suggest that the transcription factor NFkB, might be affecting estradiol leptin induction. Finally through transient transfection analysis we observed that the overexpression of RelA (p65) and HEGO (ERa) increases basal transcriptional activity of leptin promoter. Conclusion: These results suggest that leptin expression is tightly regulated and help to comprehend the mechanisms where E2 regulated leptin expression possibly involving the cooperation between ERa and NFkB transcription factors. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject Reunión Journal http://purl.org/coar/resource_type/c_5794 info:ar-repo/semantics/documentoDeConferencia |
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publishedVersion |
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conferenceObject |
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http://hdl.handle.net/11336/135669 Crosstalk between ERα and NFκB transcription factors on E2 induced leptin expression in placental cells; International Federation of Placenta Associations Meeting y VIII Simposio Latinoamericano de Interacción Materno-Fetal y Placenta; Buenos Aires; Argentina; 2019; e33-e33 0143-4004 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/135669 |
identifier_str_mv |
Crosstalk between ERα and NFκB transcription factors on E2 induced leptin expression in placental cells; International Federation of Placenta Associations Meeting y VIII Simposio Latinoamericano de Interacción Materno-Fetal y Placenta; Buenos Aires; Argentina; 2019; e33-e33 0143-4004 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://www.sciencedirect.com/science/article/abs/pii/S0143400419302383 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.placenta.2019.06.109 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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openAccess |
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Internacional |
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Elsevier |
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Elsevier |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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