トウマ　チヒロ   Touma Chihiro   藤間　千尋    所属   医学部 医学科（附属八千代医療センター）    職種   助教
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	In-Vitro Decidualization With Different Progesterone Concentration: Development of a Hormone-Responsive 3D Endometrial Tissue Using Rat Endometrial Tissues.
掲載誌名	正式名：Cureus 略　 称：Cureus ISSNコード：21688184/21688184
掲載区分	国外
巻・号・頁	15(11),pp.e49613
著者・共著者	TOMA Chihiro†*, KURAMOTO Goro, HOMMA Jun*, SAKAGUCHI Katsuhisa*, SHIMIZU Tatsuya
担当区分	筆頭著者
発行年月	2023/11/28
概要	Infertility in women is associated with various uterine and ovarian disorders. Treatment strategies for infertility can range from medications to embryo implantation through assisted reproductive technology (ART). ART has enabled considerable progress; however, there is currently no treatment to replace the endometrium itself. Decidualization requires a complex interaction between endometrial tissue and estrogen and progesterone. We aimed to create a three-dimensional endometrial-like tissue model using in-vitro cell sheet engineering with rat endometrium, and culture cells at different progesterone concentrations to mimic local concentrations. Histological and morphological changes revealed that development of the endometrial-like tissue was not proportional to progesterone concentrations in terms of thickness, number of endometrial glands, or area fraction of intimal glands. These results suggest that decidualization may not be commensurate with the local endometrial progesterone concentration. Notably, the number of endometrial glands increased in the high concentration group and compaction occurred, indicating that the endometrial conditions in the high concentration group may be most conducive to increase pregnancy rates. These findings suggest that there may be an "optimal progesterone concentration" for decidualization, application of which may lead to new strategies for improving pregnancy rates in women with infertility.
DOI	10.7759/cureus.49613
PMID	38033443