Fertility and sterility · 2011
Deoxyribonucleic acid methyltransferases and methyl-CpG-binding domain proteins in human endometrium and endometriosis.
Сравнительное исследованиеСтатьяМногоцентровое исследованиеНазвание и аннотация: Перевод пока не подготовлен
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van Kaam Kim J A F, Delvoux Bert, Romano Andrea, D'Hooghe Thomas, Dunselman Gerard A J, Groothuis Patrick G
Аннотация
OBJECTIVE: To determine [1] expression levels of both DNA methyltransferases (DNMTs) and methyl-CpG-binding domain proteins (MBDs) in human endometrium throughout the menstrual cycle and in eutopic and ectopic endometrium of patients with endometriosis and [2] hormone responsiveness of DNMT and MBD expression in explant cultures of proliferative phase endometrium.
DESIGN: In vitro study.
SETTING: Academic medical center.
PATIENT(S): Premenopausal women with and without endometriosis.
INTERVENTION(S): Explant cultures of proliferative phase endometrium were treated with vehicle, 17β-E(2), or a combination of E(2) and P (E(2) + P) for 24 hours.
MAIN OUTCOME MEASURE(S): Expression levels of DNMT1, DNMT2, and DNMT3B and MBD1, MBD2, and MeCP2 with use of real-time quantitative polymerase chain reaction.
RESULT(S): Expression levels of DNMT1 and MBD2 were significantly higher in secretory-phase endometrium compared with proliferative endometrium and menstrual endometrium. In explant cultures, treatment with E(2) + P resulted in significant up-regulation of DNMT1 and MBD2. Expression levels of several DNMTs and MBDs were significantly lower in endometriotic lesions compared with eutopic endometrium of women with endometriosis and disease-free controls.
CONCLUSION(S): These findings suggest a role for DNMTs and MBDs in the growth and differentiation of the human endometrium and support the notion that endometriosis may be an epigenetic disease.
DESIGN: In vitro study.
SETTING: Academic medical center.
PATIENT(S): Premenopausal women with and without endometriosis.
INTERVENTION(S): Explant cultures of proliferative phase endometrium were treated with vehicle, 17β-E(2), or a combination of E(2) and P (E(2) + P) for 24 hours.
MAIN OUTCOME MEASURE(S): Expression levels of DNMT1, DNMT2, and DNMT3B and MBD1, MBD2, and MeCP2 with use of real-time quantitative polymerase chain reaction.
RESULT(S): Expression levels of DNMT1 and MBD2 were significantly higher in secretory-phase endometrium compared with proliferative endometrium and menstrual endometrium. In explant cultures, treatment with E(2) + P resulted in significant up-regulation of DNMT1 and MBD2. Expression levels of several DNMTs and MBDs were significantly lower in endometriotic lesions compared with eutopic endometrium of women with endometriosis and disease-free controls.
CONCLUSION(S): These findings suggest a role for DNMTs and MBDs in the growth and differentiation of the human endometrium and support the notion that endometriosis may be an epigenetic disease.