The NFkB pathway is down-regulated by 1α,25(OH)2-Vitamin D3 in endothelial cells transformed by Kaposi Sarcoma-associated herpes virus G protein coupled receptor
- Autores
- González Pardo, María Verónica; D'elía, Noelia Laura; Berstuy, Annemieke; Boland, Ricardo Leopoldo; Russo, Ana Josefa
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We have previously demonstrated that 1α,25 dihydroxy-vitamin D3 (1α,25(OH)2D3) has antiproliferative effects on the growth of endothelial cells transformed by the viral G protein-coupled receptor associated to Kaposi sarcoma (vGPCR). In this work, we have investigated whether 1α,25(OH)2D3 exerts its growth inhibitory effects by inhibiting the Nuclear Factor κ B (NFκB) pathway which is highly activated by vGPCR. Cell proliferation studies demonstrated that 1α,25(OH)2D3, similarly to bortezomib, a proteosome inhibitor that suppresses the activation of NFκB, reduced the proliferation of endothelial cells transformed by vGPCR (SVEC-vGPCR). The activity of NFκB in these cells decreased by 70% upon 1α,25(OH)2D3 treatment. Furthermore, time and dose response studies showed that the hormone significantly decreased NFκB and increased IκBα mRNA and protein levels in SVEC-vGPCR cells, whereas in SVEC only IκBα increased significantly. Moreover, NFκB translocation to the nucleus was inhibited and occurred by a mechanism independent of NFκB association with vitamin D3 receptor (VDR). 1α,25(OH)2D3-induced increase in IκBα required de novo protein synthesis, and was independent of MAPK and PI3K/Akt pathways. Altogether, these results suggest that down-regulation of the NFκB pathway is part of the mechanism involved in the antiproliferative effects of 1α,25(OH)2D3 on endothelial cells transformed by vGPCR.
Fil: González Pardo, María Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Katholieke Universiteit Leuven; Bélgica
Fil: D'elía, Noelia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Berstuy, Annemieke. Katholieke Universiteit Leuven; Bélgica
Fil: Boland, Ricardo Leopoldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Russo, Ana Josefa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina - Materia
-
Nfkb
1α,25(Oh)2-Vitamin D3
Endothelial Cells
Kaposi Sarcoma - 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:11336/62541
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The NFkB pathway is down-regulated by 1α,25(OH)2-Vitamin D3 in endothelial cells transformed by Kaposi Sarcoma-associated herpes virus G protein coupled receptorGonzález Pardo, María VerónicaD'elía, Noelia LauraBerstuy, AnnemiekeBoland, Ricardo LeopoldoRusso, Ana JosefaNfkb1α,25(Oh)2-Vitamin D3Endothelial CellsKaposi Sarcomahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1We have previously demonstrated that 1α,25 dihydroxy-vitamin D3 (1α,25(OH)2D3) has antiproliferative effects on the growth of endothelial cells transformed by the viral G protein-coupled receptor associated to Kaposi sarcoma (vGPCR). In this work, we have investigated whether 1α,25(OH)2D3 exerts its growth inhibitory effects by inhibiting the Nuclear Factor κ B (NFκB) pathway which is highly activated by vGPCR. Cell proliferation studies demonstrated that 1α,25(OH)2D3, similarly to bortezomib, a proteosome inhibitor that suppresses the activation of NFκB, reduced the proliferation of endothelial cells transformed by vGPCR (SVEC-vGPCR). The activity of NFκB in these cells decreased by 70% upon 1α,25(OH)2D3 treatment. Furthermore, time and dose response studies showed that the hormone significantly decreased NFκB and increased IκBα mRNA and protein levels in SVEC-vGPCR cells, whereas in SVEC only IκBα increased significantly. Moreover, NFκB translocation to the nucleus was inhibited and occurred by a mechanism independent of NFκB association with vitamin D3 receptor (VDR). 1α,25(OH)2D3-induced increase in IκBα required de novo protein synthesis, and was independent of MAPK and PI3K/Akt pathways. Altogether, these results suggest that down-regulation of the NFκB pathway is part of the mechanism involved in the antiproliferative effects of 1α,25(OH)2D3 on endothelial cells transformed by vGPCR.Fil: González Pardo, María Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Katholieke Universiteit Leuven; BélgicaFil: D'elía, Noelia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Berstuy, Annemieke. Katholieke Universiteit Leuven; BélgicaFil: Boland, Ricardo Leopoldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Russo, Ana Josefa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaElsevier Science Inc2012-05info: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/11336/62541González Pardo, María Verónica; D'elía, Noelia Laura; Berstuy, Annemieke; Boland, Ricardo Leopoldo; Russo, Ana Josefa; The NFkB pathway is down-regulated by 1α,25(OH)2-Vitamin D3 in endothelial cells transformed by Kaposi Sarcoma-associated herpes virus G protein coupled receptor; Elsevier Science Inc; Steroids; 77; 5-2012; 1025-10320039-128XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0039128X12001808info:eu-repo/semantics/altIdentifier/doi/10.1016/j.steroids.2012.05.006info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:06:59Zoai:ri.conicet.gov.ar:11336/62541instacron: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 10:06:59.806CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
The NFkB pathway is down-regulated by 1α,25(OH)2-Vitamin D3 in endothelial cells transformed by Kaposi Sarcoma-associated herpes virus G protein coupled receptor |
title |
The NFkB pathway is down-regulated by 1α,25(OH)2-Vitamin D3 in endothelial cells transformed by Kaposi Sarcoma-associated herpes virus G protein coupled receptor |
spellingShingle |
The NFkB pathway is down-regulated by 1α,25(OH)2-Vitamin D3 in endothelial cells transformed by Kaposi Sarcoma-associated herpes virus G protein coupled receptor González Pardo, María Verónica Nfkb 1α,25(Oh)2-Vitamin D3 Endothelial Cells Kaposi Sarcoma |
title_short |
The NFkB pathway is down-regulated by 1α,25(OH)2-Vitamin D3 in endothelial cells transformed by Kaposi Sarcoma-associated herpes virus G protein coupled receptor |
title_full |
The NFkB pathway is down-regulated by 1α,25(OH)2-Vitamin D3 in endothelial cells transformed by Kaposi Sarcoma-associated herpes virus G protein coupled receptor |
title_fullStr |
The NFkB pathway is down-regulated by 1α,25(OH)2-Vitamin D3 in endothelial cells transformed by Kaposi Sarcoma-associated herpes virus G protein coupled receptor |
title_full_unstemmed |
The NFkB pathway is down-regulated by 1α,25(OH)2-Vitamin D3 in endothelial cells transformed by Kaposi Sarcoma-associated herpes virus G protein coupled receptor |
title_sort |
The NFkB pathway is down-regulated by 1α,25(OH)2-Vitamin D3 in endothelial cells transformed by Kaposi Sarcoma-associated herpes virus G protein coupled receptor |
dc.creator.none.fl_str_mv |
González Pardo, María Verónica D'elía, Noelia Laura Berstuy, Annemieke Boland, Ricardo Leopoldo Russo, Ana Josefa |
author |
González Pardo, María Verónica |
author_facet |
González Pardo, María Verónica D'elía, Noelia Laura Berstuy, Annemieke Boland, Ricardo Leopoldo Russo, Ana Josefa |
author_role |
author |
author2 |
D'elía, Noelia Laura Berstuy, Annemieke Boland, Ricardo Leopoldo Russo, Ana Josefa |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Nfkb 1α,25(Oh)2-Vitamin D3 Endothelial Cells Kaposi Sarcoma |
topic |
Nfkb 1α,25(Oh)2-Vitamin D3 Endothelial Cells Kaposi Sarcoma |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
We have previously demonstrated that 1α,25 dihydroxy-vitamin D3 (1α,25(OH)2D3) has antiproliferative effects on the growth of endothelial cells transformed by the viral G protein-coupled receptor associated to Kaposi sarcoma (vGPCR). In this work, we have investigated whether 1α,25(OH)2D3 exerts its growth inhibitory effects by inhibiting the Nuclear Factor κ B (NFκB) pathway which is highly activated by vGPCR. Cell proliferation studies demonstrated that 1α,25(OH)2D3, similarly to bortezomib, a proteosome inhibitor that suppresses the activation of NFκB, reduced the proliferation of endothelial cells transformed by vGPCR (SVEC-vGPCR). The activity of NFκB in these cells decreased by 70% upon 1α,25(OH)2D3 treatment. Furthermore, time and dose response studies showed that the hormone significantly decreased NFκB and increased IκBα mRNA and protein levels in SVEC-vGPCR cells, whereas in SVEC only IκBα increased significantly. Moreover, NFκB translocation to the nucleus was inhibited and occurred by a mechanism independent of NFκB association with vitamin D3 receptor (VDR). 1α,25(OH)2D3-induced increase in IκBα required de novo protein synthesis, and was independent of MAPK and PI3K/Akt pathways. Altogether, these results suggest that down-regulation of the NFκB pathway is part of the mechanism involved in the antiproliferative effects of 1α,25(OH)2D3 on endothelial cells transformed by vGPCR. Fil: González Pardo, María Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina. Katholieke Universiteit Leuven; Bélgica Fil: D'elía, Noelia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina Fil: Berstuy, Annemieke. Katholieke Universiteit Leuven; Bélgica Fil: Boland, Ricardo Leopoldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina Fil: Russo, Ana Josefa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina |
description |
We have previously demonstrated that 1α,25 dihydroxy-vitamin D3 (1α,25(OH)2D3) has antiproliferative effects on the growth of endothelial cells transformed by the viral G protein-coupled receptor associated to Kaposi sarcoma (vGPCR). In this work, we have investigated whether 1α,25(OH)2D3 exerts its growth inhibitory effects by inhibiting the Nuclear Factor κ B (NFκB) pathway which is highly activated by vGPCR. Cell proliferation studies demonstrated that 1α,25(OH)2D3, similarly to bortezomib, a proteosome inhibitor that suppresses the activation of NFκB, reduced the proliferation of endothelial cells transformed by vGPCR (SVEC-vGPCR). The activity of NFκB in these cells decreased by 70% upon 1α,25(OH)2D3 treatment. Furthermore, time and dose response studies showed that the hormone significantly decreased NFκB and increased IκBα mRNA and protein levels in SVEC-vGPCR cells, whereas in SVEC only IκBα increased significantly. Moreover, NFκB translocation to the nucleus was inhibited and occurred by a mechanism independent of NFκB association with vitamin D3 receptor (VDR). 1α,25(OH)2D3-induced increase in IκBα required de novo protein synthesis, and was independent of MAPK and PI3K/Akt pathways. Altogether, these results suggest that down-regulation of the NFκB pathway is part of the mechanism involved in the antiproliferative effects of 1α,25(OH)2D3 on endothelial cells transformed by vGPCR. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-05 |
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/11336/62541 González Pardo, María Verónica; D'elía, Noelia Laura; Berstuy, Annemieke; Boland, Ricardo Leopoldo; Russo, Ana Josefa; The NFkB pathway is down-regulated by 1α,25(OH)2-Vitamin D3 in endothelial cells transformed by Kaposi Sarcoma-associated herpes virus G protein coupled receptor; Elsevier Science Inc; Steroids; 77; 5-2012; 1025-1032 0039-128X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/62541 |
identifier_str_mv |
González Pardo, María Verónica; D'elía, Noelia Laura; Berstuy, Annemieke; Boland, Ricardo Leopoldo; Russo, Ana Josefa; The NFkB pathway is down-regulated by 1α,25(OH)2-Vitamin D3 in endothelial cells transformed by Kaposi Sarcoma-associated herpes virus G protein coupled receptor; Elsevier Science Inc; Steroids; 77; 5-2012; 1025-1032 0039-128X 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/pii/S0039128X12001808 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.steroids.2012.05.006 |
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 |
dc.publisher.none.fl_str_mv |
Elsevier Science Inc |
publisher.none.fl_str_mv |
Elsevier Science Inc |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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1844613924790468608 |
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13.070432 |