Registro completo de metadatos
Campo DC Valor Lengua/Idioma
dc.provenanceCONICET-
dc.creatorde Siervi, Adriana-
dc.creatorde Luca, Paola-
dc.creatorByun, Jung S.-
dc.creatorDi, Li Jun-
dc.creatorFufa, Temesgen-
dc.creatorHaggerty, Cynthia M.-
dc.creatorVazquez, Elba Susana-
dc.creatorMoiola, Cristian Pablo-
dc.creatorLongo, Dan L.-
dc.creatorGardner, Kevin-
dc.date2017-05-17T18:57:45Z-
dc.date2017-05-17T18:57:45Z-
dc.date2010-01-
dc.date2017-05-11T20:57:29Z-
dc.date.accessioned2019-04-29T15:38:27Z-
dc.date.available2019-04-29T15:38:27Z-
dc.date.issued2010-01-
dc.identifierde Siervi, Adriana; de Luca, Paola; Byun, Jung S.; Di, Li Jun; Fufa, Temesgen; et al.; Transcriptional Autoregulation by BRCA1; American Association For Cancer Research; Cancer Research; 70; 2; 1-2010; 532-542-
dc.identifier0008-5472-
dc.identifierhttp://hdl.handle.net/11336/16581-
dc.identifier1538-7445-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/298284-
dc.descriptionThe BRCA1 gene product plays numerous roles in regulating genome integrity. Its role in assembling supermolecular complexes in response to DNA damage has been extensively studied; however, much less is understood about its role as a transcriptional coregulator. Loss or mutation is associated with hereditary breast and ovarian cancers, whereas altered expression occurs frequently in sporadic forms of breast cancer, suggesting that the control of BRCA1 transcription might be important to tumorigenesis. Here, we provide evidence of a striking linkage between the roles for BRCA1 as a transcriptional coregulator with control of its expression via an autoregulatory transcriptional loop. BRCA1 assembles with complexes containing E2F-1 and RB to form a repressive multicomponent transcriptional complex that inhibits BRCA1 promoter transcription. This complex is disrupted by genotoxic stress, resulting in the displacement of BRCA1 protein from the BRCA1 promoter and subsequent upregulation of BRCA1 transcription. Cells depleted of BRCA1 respond by upregulating BRCA1 transcripts, whereas cells overexpressing BRCA1 respond by downregulating BRCA1 transcripts. Tandem chromatin immmunoprecipitation studies show that BRCA1 is regulated by a dynamic coregulatory complex containing BRCA1, E2F1, and Rb at the BRCA1 promoter that is disrupted by DNA-damaging agents to increase its transcription. These results define a novel transcriptional mechanism of autoregulated homeostasis of BRCA1 that selectively titrates its levels to maintain genome integrity in response to genotoxic insult.-
dc.descriptionFil: de Siervi, Adriana. National Cancer Institute; Estados Unidos. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Biológica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina-
dc.descriptionFil: de Luca, Paola. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Biológica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina-
dc.descriptionFil: Byun, Jung S.. National Cancer Institute; Estados Unidos-
dc.descriptionFil: Di, Li Jun. National Cancer Institute; Estados Unidos-
dc.descriptionFil: Fufa, Temesgen. National Cancer Institute; Estados Unidos-
dc.descriptionFil: Haggerty, Cynthia M.. National Cancer Institute; Estados Unidos-
dc.descriptionFil: Vazquez, Elba Susana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Biológica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina-
dc.descriptionFil: Moiola, Cristian Pablo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Biológica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina-
dc.descriptionFil: Longo, Dan L.. National Institute on Aging; Estados Unidos-
dc.descriptionFil: Gardner, Kevin. National Cancer Institute; Estados Unidos-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherAmerican Association For Cancer Research-
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2952428/?tool=pubmed-
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1158/0008-5472.CAN-09-1477-
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://cancerres.aacrjournals.org/content/70/2/532-
dc.rightsinfo:eu-repo/semantics/restrictedAccess-
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/-
dc.sourcereponame:CONICET Digital (CONICET)-
dc.sourceinstname:Consejo Nacional de Investigaciones Científicas y Técnicas-
dc.sourceinstacron:CONICET-
dc.source.urihttp://hdl.handle.net/11336/16581-
dc.subjectBRCA1-
dc.subjectTranscripción-
dc.subjectDaño en el ADN-
dc.subjectCiclo celular-
dc.subjectBioquímica y Biología Molecular-
dc.subjectCiencias Biológicas-
dc.subjectCIENCIAS NATURALES Y EXACTAS-
dc.titleTranscriptional Autoregulation by BRCA1-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
Aparece en las colecciones: CONICET

Ficheros en este ítem:
No hay ficheros asociados a este ítem.