Integrative genomics of gene and metabolic regulation by estrogen receptors α and ß, and their coregulators.
Mol Syst Biol
; 9: 676, 2013 Jun 18.
Article
em En
| MEDLINE
| ID: mdl-23774759
ABSTRACT
The closely related transcription factors (TFs), estrogen receptors ERα and ERß, regulate divergent gene expression programs and proliferative outcomes in breast cancer. Utilizing breast cancer cells with ERα, ERß, or both receptors as a model system to define the basis for differing response specification by related TFs, we show that these TFs and their key coregulators, SRC3 and RIP140, generate overlapping as well as unique chromatin-binding and transcription-regulating modules. Cistrome and transcriptome analyses and the use of clustering algorithms delineated 11 clusters representing different chromatin-bound receptor and coregulator assemblies that could be functionally associated through enrichment analysis with distinct patterns of gene regulation and preferential coregulator usage, RIP140 with ERß and SRC3 with ERα. The receptors modified each other's transcriptional effect, and ERß countered the proliferative drive of ERα through several novel mechanisms associated with specific binding-site clusters. Our findings delineate distinct TF-coregulator assemblies that function as control nodes, specifying precise patterns of gene regulation, proliferation, and metabolism, as exemplified by two of the most important nuclear hormone receptors in human breast cancer.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Neoplasias da Mama
/
Proteínas Nucleares
/
Regulação Neoplásica da Expressão Gênica
/
Genômica
/
Proteínas Adaptadoras de Transdução de Sinal
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Receptor alfa de Estrogênio
/
Receptor beta de Estrogênio
/
Coativador 3 de Receptor Nuclear
Tipo de estudo:
Prognostic_studies
Limite:
Female
/
Humans
Idioma:
En
Revista:
Mol Syst Biol
Assunto da revista:
BIOLOGIA MOLECULAR
/
BIOTECNOLOGIA
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Estados Unidos