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Mol Cell Endocrinol. 2009 Mar 5;300(1-2):104-8. doi: 10.1016/j.mce.2008.12.012. Epub 2008 Dec 25.

Steroidogenic factor-1 and endometriosis.

Author information

1
Division of Reproductive Biology Research, Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, 333 E. Superior Street, Suite 484, Chicago, IL 60611, United States. s-bulun@northwestern.edu

Abstract

Endometriosis is a common and chronic disease characterized by persistent pelvic pain and infertility. Estradiol is essential for growth and inflammation in endometriotic tissue. The complete cascade of steroidogenic proteins/enzymes including aromatase is present in endometriosis leading to de novo estradiol synthesis. PGE(2) induces the expression of the genes that encode these enzymes. Upon PGE(2) treatment, coordinate recruitment of the nuclear receptor SF-1 to the promoters of these steroidogenic genes is the key event for estradiol synthesis. SF-1 is the key factor determining that an endometriotic cell will respond to PGE(2) by increased estradiol formation. The presence of SF-1 in endometriosis and its absence in endometrium is determined primarily by the methylation of its promoter. The key steroidogenic enzyme in endometriosis is aromatase encoded by a single gene because its inhibition blocks all estradiol biosynthesis. Aromatase inhibitors diminish endometriotic implants and associated pain refractory to existing treatments in affected women.

PMID:
19150483
DOI:
10.1016/j.mce.2008.12.012
[Indexed for MEDLINE]

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