期刊
SEMINARS IN REPRODUCTIVE MEDICINE
卷 30, 期 1, 页码 39-45出版社
THIEME MEDICAL PUBL INC
DOI: 10.1055/s-0031-1299596
关键词
ER-beta; nuclear receptor; estrogen; DNA methylation; epigenetic; promoter; ER-alpha; PR
资金
- NICHD [R37-HD37691]
- Grants-in-Aid for Scientific Research [23791805] Funding Source: KAKEN
Endometriosis is an estrogen-dependent disease. The biologically active estrogen, estradiol, aggravates the pathological processes (e. g., inflammation and growth) and the symptoms (e. g., pain) associated with endometriosis. Abundant quantities of estradiol are available for endometriotic tissue via several mechanisms including local aromatase expression. The question remains, then, what mediates estradiol action. Because estrogen receptor (ER)beta levels in endometriosis are >100 times higher than those in endometrial tissue, this review focuses on this nuclear receptor. Deficient methylation of the ER beta promoter results in pathological overexpression of ER beta in endometriotic stromal cells. High levels of ER beta suppress ER alpha expression. A severely high ER beta-to-ER alpha ratio in endometriotic stromal cells is associated with suppressed progesterone receptor and increased cyclo-oxygenase-2 levels contributing to progesterone resistance and inflammation. ER beta-selective estradiol antagonists may serve as novel therapeutics of endometriosis in the future.
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