Bromodomain protein BRD4 is required for estrogen receptor-dependent transcription and enhancer activation [ChIP-seq]

ABSTRACT: The estrogen receptor-α (ERα) is a transcription factor which plays a critical role in controlling cell proliferation and tumorigenesis by recruiting various cofactors to estrogen response elements (EREs) to induce or repress gene transcription. A deeper understanding of these transcriptional mechanisms may uncover novel therapeutic targets for ERα-dependent cancers. Here we show for the first time that BRD4 regulates ERα−induced gene expression by affecting elongation-associated phosphorylation of RNA Polymerase II (RNAPII P-Ser2) and histone H2B monoubiquitination (H2Bub1). Consistently, BRD4 activity is required for estrogen-induced proliferation of ER+ breast and endometrial cancer cells and uterine growth in mice. Genome-wide occupancy studies revealed an enrichment of BRD4 on transcr

ORGANISM(S): Homo sapiens

SUBMITTER: Steven Johnsen 

PROVIDER: E-GEOD-55921 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress