title: Methyl protodioscin induces G2/M cell cycle arrest and apoptosis in HepG2 liver cancer cells.
abstract: Methyl protodioscin (NSC-698790) is one of the main bioactive components in the traditional Chinese medicine Dioscorea collettii var. hypoglauca (Dioscoreaceae). In this study, we investigated the anti-proliferative effect of methyl protodioscin on the HepG2 cells and the mechanism of the induced cytotoxicity. Treatment of methyl protodioscin resulted in G2/M arrest and apoptosis in HepG2 cells. These effects were attributed to down-regulation of Cyclin B1 and the signaling pathways leading to up-regulation of Bax and down-regulation of BCL2, suggesting that methyl protodioscin may be a novel anti-mitotic agent.
authors.affiliation: Department of Natural Products Chemistry, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China.
authors.forename: Guanghui
authors.initials: G
authors.lastname: Wang
authors.forename: Haifeng
authors.initials: H
authors.lastname: Chen
authors.forename: Minghui
authors.initials: M
authors.lastname: Huang
authors.forename: Naili
authors.initials: N
authors.lastname: Wang
authors.forename: Jinchao
authors.initials: J
authors.lastname: Zhang
authors.forename: Yaou
authors.initials: Y
authors.lastname: Zhang
authors.forename: Ganrong
authors.initials: G
authors.lastname: Bai
authors.forename: Wang-Fun
authors.initials: WF
authors.lastname: Fong
authors.forename: Mengsu
authors.initials: M
authors.lastname: Yang
authors.forename: Xinsheng
authors.initials: X
authors.lastname: Yao
mesh_terms: D017209:Apoptosis / Q000187:drug effects*; D015153:Blotting, Western; D042846:CDC2-CDC28 Kinases / Q000378:metabolism; D002455:Cell Division / Q000187:drug effects*; D045744:Cell Line, Tumor; D019926:Cyclin B / Q000378:metabolism; D056744:Cyclin B1; D004144:Diosgenin / Q000031:analogs & derivatives* / Q000494:pharmacology; D016195:G2 Phase / Q000187:drug effects*; D006801:Humans; D008113:Liver Neoplasms / Q000473:pathology*; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000378:metabolism; D012503:Saponins / Q000494:pharmacology*; D051028:bcl-2-Associated X Protein / Q000378:metabolism
chemical_list: C534699:CCNB1 protein, human; D019926:Cyclin B; D056744:Cyclin B1; D019253:Proto-Oncogene Proteins c-bcl-2; D012503:Saponins; D051028:bcl-2-Associated X Protein; C425324:methyl protodioscin; D042846:CDC2-CDC28 Kinases; D004144:Diosgenin