title: Triterpenoid saponins from Anemone flaccida induce apoptosis activity in HeLa cells.
abstract: Five triterpenoid saponins were isolated from Anemone flaccida Fr. Schmidt. Their structures were identified as glycoside St-I4a (1), glycoside St-J (2), anhuienoside E (3), hederasaponin B (4), and flaccidoside II (5). Compounds 1-2 were isolated from Anemone family for the first time, and compounds 3-4 were isolated from this plant for the first time. The inhibitory effects of saponins on proliferation of HeLa cells were studied by MTT assay, the apoptosis-induction activity was observed by cell-cycle analysis and caspase-3 expression assay. The antitumor activities of the saponins were ranked in the following order: 5 > 3 > 4 > 1 > 2. The data presented here indicated that naturally occurring triterpenoid saponins can be regarded as excellent structures for the potential development of new anticancer agents.
authors.affiliation: Key Laboratory of Traditional Chinese Medicine Resource and Compound Prescription, Hubei College of TCM, Wuhan, China.
authors.forename: Lin-Tao
authors.initials: LT
authors.lastname: Han
authors.forename: Juan
authors.initials: J
authors.lastname: Li
authors.forename: Fang
authors.initials: F
authors.lastname: Huang
authors.forename: Shang-Gong
authors.initials: SG
authors.lastname: Yu
authors.forename: Nian-Bai
authors.initials: NB
authors.lastname: Fang
mesh_terms: D031883:Anemone / Q000737:chemistry*; D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects; D004354:Drug Screening Assays, Antitumor; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D006367:HeLa Cells; D006801:Humans; D015394:Molecular Structure; D012503:Saponins / Q000737:chemistry / Q000494:pharmacology; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D004365:Drugs, Chinese Herbal; D012503:Saponins; D014315:Triterpenes