title: Alisol B acetate, a triterpene from Alismatis rhizoma, induces Bax nuclear translocation and apoptosis in human hormone-resistant prostate cancer PC-3 cells.
abstract: The anti-tumor potential of components from Chinese herbal medicines has been greatly concerned. Alisol B acetate, a triterpene from Alismatis rhizoma, induced apoptotic cell death in human hormone-resistant prostate cancer PC-3 cells in a time- and concentration-dependent manner. A good correlation between loss of mitochondrial membrane potential and apoptotic cell death was apparent indicating the participation of mitochondria-related mechanism. Alisol B acetate induced Bax up-regulation and nuclear translocation; it also induced the activation of initiator caspase-8 and caspase-9, and executor caspase-3, suggesting the involvement of both extrinsic and intrinsic apoptosis pathways. Taken together, it is suggested that alisol B acetate induces apoptosis in PC-3 cells via a mitochondria-mediated mechanism with activation of caspase-8, -9 and -3. Furthermore, the Bax activation and translocation from the cytosol to nucleus might be a crucial response to the apoptotic effect.
authors.affiliation: Pharmacological Institute, College of Medicine, National Taiwan University, No. 1, Jen-Ai Road, Sect. 1, Taipei, Taiwan, ROC.
authors.forename: Yao-Ting
authors.initials: YT
authors.lastname: Huang
authors.forename: Dong-Ming
authors.initials: DM
authors.lastname: Huang
authors.forename: Shih-Chieh
authors.initials: SC
authors.lastname: Chueh
authors.forename: Che-Ming
authors.initials: CM
authors.lastname: Teng
authors.forename: Jih-Hwa
authors.initials: JH
authors.lastname: Guh
mesh_terms: D034901:Alismataceae / Q000737:chemistry*; D000970:Antineoplastic Agents / Q000494:pharmacology; D000972:Antineoplastic Agents, Phytogenic / Q000494:pharmacology; D017209:Apoptosis / Q000187:drug effects*; D015153:Blotting, Western; D020169:Caspases / Q000378:metabolism; D002467:Cell Nucleus / Q000378:metabolism*; D002783:Cholestenones / Q000494:pharmacology*; D003474:Curcumin / Q000494:pharmacology; D019008:Drug Resistance, Neoplasm; D005434:Flow Cytometry; D006801:Humans; D008297:Male; D008564:Membrane Potentials / Q000187:drug effects; D008928:Mitochondria / Q000187:drug effects; D009376:Neoplasms, Hormone-Dependent / Q000188:drug therapy* / Q000378:metabolism / Q000473:pathology; D019001:Nitric Oxide Synthase / Q000037:antagonists & inhibitors; D017239:Paclitaxel / Q000494:pharmacology; D011471:Prostatic Neoplasms / Q000188:drug therapy* / Q000378:metabolism / Q000473:pathology; D021381:Protein Transport / Q000187:drug effects; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000378:metabolism; D014315:Triterpenes / Q000494:pharmacology; D014407:Tumor Cells, Cultured / Q000187:drug effects; D051028:bcl-2-Associated X Protein / Q000378:metabolism*
chemical_list: D000970:Antineoplastic Agents; D000972:Antineoplastic Agents, Phytogenic; D002783:Cholestenones; D019253:Proto-Oncogene Proteins c-bcl-2; D014315:Triterpenes; C401295:alisol B monoacetate; D051028:bcl-2-Associated X Protein; D019001:Nitric Oxide Synthase; D020169:Caspases; D003474:Curcumin; D017239:Paclitaxel