title: Cytotoxic principles from Ventilago leiocarpa.
abstract: Three new anthraquinones, islandicin 4-methyl ether (1), 1,2,6-trihydroxy-7,8-dimethoxy-3-methylanthraquinone (2), and 2-hydroxyemodin 1-methyl ether (3) as well as two known triterpenoids [taraxerol (4), lupeol (5)], six anthraquinones [chrysophanol (6), islandicin (8), parietin (9), emodin (10), catenarin (11), skyrin (15)], a 2,3-dihydroflavonol [(+)-aromadendrin (12)], two benzisochromanquinones [ventiloquinone K (13) and ventiloquinone I (14)], and stigmasterol (7) were isolated from Ventilago leiocarpa. The cytotoxicity of these compounds to various tumor cell lines was evaluated, and compound 15 significantly suppressed growth of HeLa, Vero, K562, Raji, Wish, and Calu-1 tumor cell lines. With the exception of K562 cells, the proliferation of other tumor cell lines was inhibited by compounds 3 and 10.
authors.affiliation: National Research Institute of Chinese Medicine, Pettou, Taipei 112, Taiwan, Republic of China. lclin@cma23.nricm.edu.tw
authors.forename: L C
authors.initials: LC
authors.lastname: Lin
authors.forename: C J
authors.initials: CJ
authors.lastname: Chou
authors.forename: Y C
authors.initials: YC
authors.lastname: Kuo
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification; D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D002851:Chromatography, High Pressure Liquid; D004354:Drug Screening Assays, Antitumor; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D009904:Optical Rotation; D010936:Plant Extracts / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013624:Taiwan; D014407:Tumor Cells, Cultured
chemical_list: D000470:Alkaloids; D000972:Antineoplastic Agents, Phytogenic; D005419:Flavonoids; D010936:Plant Extracts; C080220:aromadedrin