雄激素受体
前列腺癌
癌症研究
细胞生长
化学
生物
癌症
内科学
医学
生物化学
作者
Kishio Maeda,Makoto Habara,Mitsuru Kawaguchi,Hiroaki Matsumoto,Shunsuke Hanaki,Takahiro Masaki,Yuki Sato,Hideyasu Matsuyama,Kazuki Kunieda,Hidehiko Nakagawa,Midori Shimada
标识
DOI:10.1002/1878-0261.13030
摘要
The growth of prostate cancer is dependent on the androgen receptor (AR), which serves as a ligand-specific transcription factor. Although two immunophilins, FKBP51 and FKBP52, are known to regulate AR activity, the precise mechanism remains unclear. We found that depletion of either FKBP51 or FKBP52 reduced AR dimer formation, chromatin binding, and phosphorylation, suggesting defective AR signaling. Furthermore, the peptidyl-prolyl cis/trans isomerase activity of FKBP51 was found to be required for AR dimer formation and cancer cell growth. Treatment of prostate cancer cells with FK506, which binds to the FK1 domain of FKBPs, or with MJC13, an inhibitor of FKBP52-AR signaling, also inhibited AR dimer formation. Finally, elevated expression of FKBP52 was associated with a higher rate of prostate-specific antigen recurrence in patients with prostate cancer. Collectively, these results suggest that FKBP51 and FKBP52 might be promising targets for prostate cancer treatment through the inhibition of AR dimer formation.
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