Increased production of 17β-estradiol in endometriosis lesions is the result of impaired metabolism

B Delvoux, P Groothuis, T D'Hooghe… - The Journal of …, 2009 - academic.oup.com
Context: substantial evidence suggests that the expression of steroid metabolizing enzymes
in endometriosis is altered, turning the ectopic endometrium into a source of 17β-estradiol …

Deficient 17β-hydroxysteroid dehydrogenase type 2 expression in endometriosis: failure to metabolize 17β-estradiol

K Zeitoun, K Takayama, H Sasano… - The Journal of …, 1998 - academic.oup.com
Aberrant aromatase expression in stromal cells of endometriosis gives rise to conversion of
circulating androstenedione to estrone in this tissue, whereas aromatase expression is …

Estrogen metabolizing enzymes in endometrium and endometriosis

H Dassen, C Punyadeera, R Kamps… - Human …, 2007 - academic.oup.com
BACKGROUND Estradiol (E 2) is an important promoter of the growth of both eutopic and
ectopic endometrium. The findings with regard to the expression and activity of …

Inhibition of type 1 17β-hydroxysteroid dehydrogenase impairs the synthesis of 17β-estradiol in endometriosis lesions

B Delvoux, T D'Hooghe, C Kyama… - The Journal of …, 2014 - academic.oup.com
Context: Endometriosis affects 10% of the women before menopause and has important
personal, professional, and societal economic burdens. Because current medical treatments …

Progesterone induction of 17β-hydroxysteroid dehydrogenase type 2 during the secretory phase occurs in the endometrium of estrogen-dependent benign diseases …

JO Kitawaki, H Koshiba, H Ishihara… - The Journal of …, 2000 - academic.oup.com
In the human endometrium, inactivation of 17β-estradiol to estrone is catalyzed by 17β-
hydroxysteroid dehydrogenase type 2 (17βHSD2). Previous studies have shown that the …

[PDF][PDF] Estrogen biosynthesis in endometriosis: molecular basis and clinical relevance

SE Bulun, KM Zeitoun, K Takayama… - Journal of Molecular …, 2000 - drpaez.com
Conversion of C19 steroids to estrogens is catalyzed by aromatase in human ovary,
placenta and extraglandular tissues such as adipose tissue, skin and the brain. Aromatase …

Aromatase as a therapeutic target in endometriosis

SE Bulun, KM Zeitoun, K Takayama, E Simpson… - Trends in Endocrinology …, 2000 - cell.com
In contrast to normal endometrium, the expression of aromatase is aberrant in endometriosis
and is stimulated by prostaglandin E 2 (PGE 2). This results in local production of estrogen …

Estrogen production in endometriosis and use of aromatase inhibitors to treat endometriosis.

SE Bulun, K Zeitoun, K Takayama… - Endocrine-related …, 1999 - erc.bioscientifica.com
Estrogen is the most important known factor that stimulates the growth of endometriosis.
Estrogen delivery to endometriotic implants was classically viewed to be only via the …

Estrogen production and metabolism in endometriosis

SE Bulun, S Yang, Z Fang, B Gurates… - Annals of the New …, 2002 - Wiley Online Library
Aromatase activity is absent in normal endometrium. In contrast, aromatase is expressed
aberrantly in endometriosis, which gives rise to strikingly high levels of aromatase activity in …

Steroidal regulation of endometriosis tissue: lack of induction of 17β-hydroxysteroid dehydrogenase activity by progesterone, medroxyprogesterone acetate, or …

P Vierikko, A Kauppila, L Rönnberg, R Vihko - Fertility and sterility, 1985 - Elsevier
Cytosol and nuclear estrogen receptors were detected in 73% and 89% of untreated
endometriosis specimens, respectively. The corresponding figures for cytosol and nuclear …