Histone acetyltransferases and histone deacetylases (HDACs) determine the acetylation status of histones, regulating gene transcription. Decidualization is the progestin-induced differentiation of estrogen-primed endometrial stromal cells (ESCs), which is crucial for implantation and maintenance of pregnancy. We here show that trichostatin A (TSA), a specific HDAC inhibitor, enhances the up-regulation of decidualization markers such as insulin-like growth factor binding protein-1 (IGFBP-1) and prolactin in a dose-dependent manner that is directed by 17β-estradiol (E2) plus progesterone (P4) in cultured ESCs, but not glandular cells, both isolated from human endometrium. Morphological changes resembling decidual transformation were also augmented by co-addition of TSA. Acid urea triton gel analysis and immunoblot using acetylated histone type-specific antibodies demonstrated that treatment with E2 plus P4 significantly increased the levels of acetylated H3 and H4 whose increment was augmented by co-treatment with TSA. Chromatin immunoprecipitation assay revealed that treatment with E2plus P4 increased the amount of proximal progesterone-responsive region of IGFBP-1 promoter associated with acetylated H4, which was dramatically enhanced by co-addition of TSA. Taken together, our results suggest that histone acetylation is deeply involved in differentiation of human ESCs and that TSA has a potential as an enhancer of decidualization through promotion of progesterone action.
Involvement of Histone Acetylation in Ovarian Steroid-induced Decidualization of Human Endometrial Stromal Cells*
Nozomi Sakai,T. Maruyama,R. Sakurai,H. Masuda,Yurie Yamamoto,A. Shimizu,Ikuko Kishi,H. Asada,S. Yamagoe,Y. Yoshimura
Published 2003 in Journal of Biological Chemistry
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- Publication year
2003
- Venue
Journal of Biological Chemistry
- Publication date
2003-05-09
- Fields of study
Biology, Medicine
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Semantic Scholar, PubMed
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