Journal
SEMINARS IN REPRODUCTIVE MEDICINE
Volume 30, Issue 1, Pages 32-38Publisher
THIEME MEDICAL PUBL INC
DOI: 10.1055/s-0031-1299595
Keywords
ovary; estrogen; estrogen receptor; cancer; environmental estrogens
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Funding
- Cancer Council of Victoria
- National Australia Bank Ovarian Cancer Research Foundation
- Granulosa Cell Tumor of the Ovary Foundation
- National Health and Medical Research Council of Australia
- Victorian Government
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Estrogen is essential for folliculogenesis with independent roles attributed to each of the two estrogen receptors (ERs). ER beta, expressed predominantly by the ovarian granulosa cells, is required for antrum formation, preovulatory follicle maturation, expression of genes involved in ovarian differentiation (luteinizing hormone, aromatase, etc.), and follicle rupture during ovulation. Ovulatory dysfunction is associated with polymorphisms of the ER beta gene, and endocrine disruptors that selectively activate ER beta cause reproductive dysfunction and impairment fertility. ER beta may also exhibit antitumorigenic properties, with a decline in ER beta levels in epithelial ovarian cancers associated with more severe disease and poor prognosis. In this review, we examine the models that have been used to elucidate the roles ER beta plays in the ovary and consider the clinical consequences of altered ER beta expression or inappropriate activation of ER beta signaling.
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