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Mol Endocrinol. 2007 Jan;21(1):1-13. Epub 2006 Mar 23.

Estrogen receptor-beta: recent lessons from in vivo studies.

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1
Women's Health and Musculoskeletal Biology, Wyeth Research, Collegeville, Pennsylvania 19426, USA. harrish@wyeth.com

Abstract

The unexpected discovery of a second form of the estrogen receptor (ER), designated ERbeta, surprised and energized the field of estrogen research. In the 9 yr since its identification, the remarkable efforts from academic and industrial scientists of many disciplines have made significant progress in elucidating its biology. A powerful battery of tools, including knockout mice as well as a panel of receptor-selective agonists, has allowed an investigation into the role of ERbeta. To date, in vivo efficacy studies are limited to rodents. Current data indicate that ERbeta plays a minor role in mediating estrogen action in the uterus, on the hypothalamus/pituitary, the skeleton, and other classic estrogen target tissues. However, a clear role for ERbeta has been established in the ovary, cardiovascular system, and brain as well as in several animal models of inflammation including arthritis, endometriosis, inflammatory bowel disease, and sepsis. The next phase of research will focus on elucidating, at a molecular level, how ERbeta exerts these diverse effects and exploring the clinical utility of ERbeta-selective agonists.

PMID:
16556737
DOI:
10.1210/me.2005-0459
[Indexed for MEDLINE]
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