RRC ID 72577
著者 Kanno Y, Saito N, Saito R, Kosuge T, Shizu R, Yatsu T, Hosaka T, Nemoto K, Kato K, Yoshinari K.
タイトル Differential DNA-binding and cofactor recruitment are possible determinants of the synthetic steroid YK11-dependent gene expression by androgen receptor in breast cancer MDA-MB 453 cells.
ジャーナル Exp Cell Res
Abstract Recently, selective androgen receptor modulators (SARMs), which bind to AR and act in a tissue/effect-specific manner, have been developed, but the selective mechanism is not well understood. In this study, we investigated the selective mechanism using the synthetic steroid YK11, which showed AR-mediated gene-selective transactivation. In the AR-positive human breast cancer MDA-MB-453 cells, different patterns of AR-mediated target gene expression and AR recruitment to their enhancer regions were observed between DHT and YK11. A docking study suggested the helices 11 and 12 was moved by the sterically hindered C17-group of YK11. Furthermore, the mutational studies of AR Gln902 and mammalian two-hybrid assays suggested different cofactor recruitment between DHT and YK11. The results of this study suggest that gene selective regulation by SARMs results from differential DNA-binding and/or cofactor recruitment by ligands. These results provide novel insights into the mechanism of action of SARMs.
巻・号 419(2)
ページ 113333
公開日 2022-10-15
DOI 10.1016/j.yexcr.2022.113333
PII S0014-4827(22)00326-3
PMID 36030969
MeSH Androgens / pharmacology Animals Breast Neoplasms* / genetics DNA Female Gene Expression Humans Mammals / genetics Receptors, Androgen* / genetics Receptors, Androgen* / metabolism Steroids
IF 3.383
リソース情報
ヒト・動物細胞 COS-7(RCB0539)