Physalin B, one of the major active steroidal constituents of Cape gooseberry, induces cell cycle arrest and triggers apoptosis in breast cancer cells through modulating p53-dependent apoptotic pathway. Physalin B inhibits the ubiquitin-proteasome pathway and induces incomplete autophagic response in human colon cancer cells in vitro[1][2].
[1]. Wang A, et al. Physalin B induces cell cycle arrest and triggers apoptosis in breast cancer cells through modulating p53-dependent apoptotic pathway. Biomed Pharmacother. 2018;101:334-341. [2]. Ma YM, et al. Physalin B not only inhibits the ubiquitin-proteasome pathway but also induces incomplete autophagic response in human colon cancer cells in vitro. Acta Pharmacol Sin. 2015;36(4):517-527.