Lee, Hesol Lee, Sullim Baek, Ji Yun Seo, Chang-Seo Yun, Hwayoung Kim, Su-Nam Kang, Ki Sung Choi, You-Kyung 2024-01-19T14:33:43Z 2024-01-19T14:33:43Z 2021-10-21 2021-05-15 0960-894X https://pubs.kist.re.kr/handle/201004/116993 We aimed to compare the estrogenic activities of compounds isolated from Moutan Cortex Radicis (MRC, Paeonia suffruticosa Andrews) and identify their potential use in hormone replacement therapy. We quantified seven marker components (gallic acid, oxypaeoniflorin, paeoniflorin, ethyl gallate, benzoic acid, benzoylpaeoniflorin, and paeonol) in MRC using a high-performance liquid chromatography simultaneous analysis assay. To investigate the estrogenic activity of MRC and the seven marker components, an E-screen assay was conducted using the estrogen receptor (ER)-positive MCF-7 human breast cancer cell line. Among them, ethyl gallate caused cell proliferation in a concentration-dependent manner at concentrations above 25 mu M and was clearly suppressed by combination treatment with the ER antagonist ICI 182,780. Therefore, ethyl gallate may be a compound of MRC that can increase the estrogenic effect in ER-positive MCF-7 cells. English Pergamon Press Ltd. BREAST-CANCER RECEPTORS Estrogenic activity of ethyl gallate and its potential use in hormone replacement therapy Article 10.1016/j.bmcl.2021.127919 1 Bioorganic & Medicinal Chemistry Letters, v.40 Bioorganic & Medicinal Chemistry Letters 40 scie scopus 000663617300005 2-s2.0-85102901358 Chemistry, Medicinal Chemistry, Organic Pharmacology & Pharmacy Chemistry Article BREAST-CANCER RECEPTORS Ethyl gallate Estrogen receptor Hormone replacement therapy