PMID- 33416159 OWN - NLM STAT- MEDLINE DCOM- 20211115 LR - 20211115 IS - 1791-2431 (Electronic) IS - 1021-335X (Print) IS - 1021-335X (Linking) VI - 45 IP - 2 DP - 2021 Feb TI - Polyphyllin VII induces mitochondrial apoptosis by regulating the PP2A/AKT/DRP1 signaling axis in human ovarian cancer. PG - 513-522 LID - 10.3892/or.2020.7879 [doi] AB - Ovarian cancer is a gynecological malignancy with high mortality. Adjuvant therapy such as chemoradiotherapy inevitably leads to side effects and drug resistance. In recent years, traditional Chinese medicine has been widely studied for its safety, effectiveness, and unique pharmacological effects. Polyphyllin VII is an important component of Rhizoma paridis saponins, and has cytotoxic effects on many types of cancer cells. The aim of the present study was to evaluate the anti‑tumor activity of polyphyllin VII in human ovarian cancer cells. Recent studies found that polyphyllin VII induces mitochondrial pathway apoptosis by increasing mitochondrial division, but the specific mechanism was unclear. The results of this study revealed that polyphyllin VII could effectively induce mitochondrial dysfunction, including increased mitochondrial division and reactive oxygen species (ROS) production. Notably, the mitochondrial location of dynamin‑related protein 1 (DRP1) plays an important role in its function. In addition, polyphyllin VII enhanced the mitochondrial localization of DRP1 which is mediated by increased protein phosphatase 2A (PP2A) activity, and decreased AKT activity. A specific PP2A inhibitor, LB100, attenuated mitochondrial division and apoptosis in cells caused by polyphyllin VII, confirming the function of the PP2A/AKT pathway in polyphyllin VII treatment. Additionally, xenotransplantation experiments have also confirmed the anti‑tumor effect of polyphyllin VII in vivo. Therefore, interference of the mitochondrial translocation of DRP1 through PP2A/AKT pathway may be an attractive and effective therapeutic approach by polyphyllin VII in ovarian cancer. This may provide new strategies for polyphyllin VII in the clinical treatment of ovarian cancer. FAU - Zhao, Liubiqi AU - Zhao L AD - Department of Gynecology and Obstetrics, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China. FAU - Liu, Zongyu AU - Liu Z AD - Department of Gynecology and Obstetrics, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China. FAU - Deng, Xinyue AU - Deng X AD - Department of Pathophysiology, Key Laboratory of Pathophysiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130041, P.R. China. FAU - Wang, Jiabin AU - Wang J AD - Department of Pathophysiology, Key Laboratory of Pathophysiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130041, P.R. China. FAU - Sun, Liankun AU - Sun L AD - Department of Pathophysiology, Key Laboratory of Pathophysiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130041, P.R. China. FAU - Fan, Limei AU - Fan L AD - Department of Gynecology and Obstetrics, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China. FAU - Zhang, Yong AU - Zhang Y AD - Department of Pathophysiology, Key Laboratory of Pathophysiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130041, P.R. China. LA - eng PT - Journal Article DEP - 20201202 PL - Greece TA - Oncol Rep JT - Oncology reports JID - 9422756 RN - 0 (LB100) RN - 0 (Piperazines) RN - 0 (Saponins) RN - 0 (polyphyllin VII) RN - EC 2.7.11.1 (AKT1 protein, human) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - EC 3.1.3.16 (Protein Phosphatase 2) RN - EC 3.6.5.5 (DNM1L protein, human) RN - EC 3.6.5.5 (Dynamins) SB - IM MH - Animals MH - Apoptosis/drug effects MH - Cell Fractionation MH - Cell Line, Tumor MH - Dynamins/metabolism MH - Female MH - Humans MH - Mice MH - Mitochondria/*drug effects/pathology MH - Ovarian Neoplasms/*drug therapy/pathology MH - Piperazines/pharmacology MH - Protein Phosphatase 2/antagonists & inhibitors/metabolism MH - Proto-Oncogene Proteins c-akt/metabolism MH - Saponins/*pharmacology/therapeutic use MH - Signal Transduction/drug effects MH - Xenograft Model Antitumor Assays PMC - PMC7757107 OTO - NOTNLM OT - polyphyllinVII OT - PP2A OT - AKT OT - dynamin-related protein 1 OT - ovarian cancer EDAT- 2021/01/09 06:00 MHDA- 2021/11/16 06:00 PMCR- 2020/12/02 CRDT- 2021/01/08 08:37 PHST- 2020/05/11 00:00 [received] PHST- 2020/10/19 00:00 [accepted] PHST- 2021/01/09 06:00 [pubmed] PHST- 2021/11/16 06:00 [medline] PHST- 2021/01/08 08:37 [entrez] PHST- 2020/12/02 00:00 [pmc-release] AID - or-45-02-0513 [pii] AID - 10.3892/or.2020.7879 [doi] PST - ppublish SO - Oncol Rep. 2021 Feb;45(2):513-522. doi: 10.3892/or.2020.7879. Epub 2020 Dec 2.