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Cancers 2011, 3(2), 1691-1707; doi:10.3390/cancers3021691
Article

Epigenetics of Estrogen Receptor Signaling: Role in Hormonal Cancer Progression and Therapy

1
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1
 and
2,*
Received: 4 January 2011 / Revised: 11 March 2011 / Accepted: 25 March 2011 / Published: 29 March 2011
(This article belongs to the Special Issue Epigenetics of Cancer Progression)
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Abstract

Estrogen receptor (ERa) signaling plays a key role in hormonal cancer progression. ERa is a ligand-dependent transcription factor that modulates gene transcription via recruitment to the target gene chromatin. Emerging evidence suggests that ERa signaling has the potential to contribute to epigenetic changes. Estrogen stimulation is shown to induce several histone modifications at the ERα target gene promoters including acetylation, phosphorylation and methylation via dynamic interactions with histone modifying enzymes. Deregulation of enzymes involved in the ERa-mediated epigenetic pathway could play a vital role in ERa driven neoplastic processes. Unlike genetic alterations, epigenetic changes are reversible, and hence offer novel therapeutic opportunities to reverse ERa driven epigenetic changes.  In this review, we summarize current knowledge on mechanisms by which ERa signaling potentiates epigenetic changes in cancer cells via histone modifications.
Keywords: estrogen receptor; histone modifications; epigenetics; breast cancer; hormonal cancers estrogen receptor; histone modifications; epigenetics; breast cancer; hormonal cancers
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Mann, M.; Cortez, V.; Vadlamudi, R.K. Epigenetics of Estrogen Receptor Signaling: Role in Hormonal Cancer Progression and Therapy. Cancers 2011, 3, 1691-1707.

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