Fang Qinghua, Cole Ryan N, Wang Zhou
Department of Urology, University of Pittsburgh School of Medicine Pittsburgh, Pennsylvania, USA.
UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine Pittsburgh, Pennsylvania, USA.
Am J Clin Exp Urol. 2022 Dec 25;10(6):366-376. eCollection 2022.
The androgen receptor (AR) remains to be a key target for the treatment of prostate cancer, including the majority of castration-resistant prostate cancer (CRPC). AR is stabilized in CRPC and the ubiquitin-proteasome system (UPS) plays a major role in AR degradation. Targeting AR for degradation provides a potential approach to overcome the resistance of CRPC to current AR antagonists, including the next generation AR signaling inhibitors. Different types of AR degraders have been developed, including the proteolysis-targeting chimeras (PROTACs), selective AR degraders (SARDs), and novel AR degraders, with several AR PROTACs currently in clinical trials. The present mini-review discusses the regulation of AR degradation by the UPS, the potential role of a novel nuclear degradation signal in AR, and different types of AR degraders.
雄激素受体(AR)仍然是前列腺癌治疗的关键靶点,包括大多数去势抵抗性前列腺癌(CRPC)。在CRPC中AR是稳定的,泛素 - 蛋白酶体系统(UPS)在AR降解中起主要作用。靶向AR进行降解为克服CRPC对当前AR拮抗剂(包括下一代AR信号抑制剂)的耐药性提供了一种潜在方法。已经开发了不同类型的AR降解剂,包括蛋白酶体靶向嵌合体(PROTAC)、选择性AR降解剂(SARD)和新型AR降解剂,目前有几种AR PROTAC正在进行临床试验。本综述讨论了UPS对AR降解的调节、AR中新型核降解信号的潜在作用以及不同类型的AR降解剂。