Piperlongumine inhibits migration and proliferation of castration-resistant prostate cancer cells via triggering persistent DNA damage - Zhang, D F; Yang, Z C; Chen, J Q; Jin, X X; Qiu, Y D; Chen, X J; Shi, H Y; Liu, Z G; Wang, M S; Liang, G; Zheng, X H (BMC Complement Med Ther, 2021)