title: Filiasparosides A-D, cytotoxic steroidal saponins from the roots of Asparagus filicinus.
abstract: Four new steroidal saponins, filiasparosides A-D (1-4), together with known aspafiliosides A (5) and B (6) were isolated from the roots of Asparagus filicinus. The structures of these new compounds were elucidated by detailed spectroscopic study and chemical analysis. Compounds 1-6 were cytotoxic against human lung carcinoma (A549) and breast adenocarcinoma (MCF-7) tumor cell lines with EC(50) values of 2.3-16.8 microg/mL. Compound 3 showed the most potent cytotoxicity, with EC(50) values of 2.3 and 3.0 microg/mL toward A549 and MCF-7 cell lines, respectively.
authors.affiliation: Department of Pharmacognosy, School of Pharmacy, Fudan University, Shanghai 200032, People's Republic of China.
authors.forename: Li-Bo
authors.initials: LB
authors.lastname: Zhou
authors.forename: Tzu-Hsuan
authors.initials: TH
authors.lastname: Chen
authors.forename: Kenneth F
authors.initials: KF
authors.lastname: Bastow
authors.forename: Makio
authors.initials: M
authors.lastname: Shibano
authors.forename: Kuo-Hsiung
authors.initials: KH
authors.lastname: Lee
authors.forename: Dao-Feng
authors.initials: DF
authors.lastname: Chen
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D027761:Asparagus Plant / Q000737:chemistry*; D004354:Drug Screening Assays, Antitumor; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D006801:Humans; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D013256:Steroids / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D004365:Drugs, Chinese Herbal; D012503:Saponins; D013256:Steroids