title: Penta-acetyl geniposide: isolation, identification and primary effect on C6 glioma cells in vitro.
abstract: A new compound, penta-acetyl geniposide [(Ac)5-GP], was obtained from modified extract of Gardenia Fructus (San-jee-chee in Chinese). Spectral studies including ultraviolet (UV), mass (MS), nuclear magnetic resonance (NMR), infrared (IR) and elemental analysis (EA) have suggested the chemical structure of the compound as 1-(beta-D-2',3',4',6'-tetraacetyl- glucopyranosyloxy)-1,4a,5,7a-tetrahydro-7-(acetomethyl)-c yclopentapyran-4-carboxylic acid methyl ester. The antitumor bioactivity of (Ac)5-GP in vitro was studied. It exhibited the activities of reduced plating efficiency and inhibition of DNA synthesis in cultured C-6 glioma cells, but had little effect on RNA and protein synthesis. These results implied that the acetylated iridoid glycoside of Gardenia Fructus is biologically active as an antitumor agent against C-6 glioma cells in culture.
authors.affiliation: Department of Biochemistry, Chung Shan Medical and Dental College, Taichung, Taiwan, R.O.C.
authors.forename: C J
authors.initials: CJ
authors.lastname: Wang
authors.forename: T H
authors.initials: TH
authors.lastname: Tseng
authors.forename: J K
authors.initials: JK
authors.lastname: Lin
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000302:isolation & purification*; D002460:Cell Line; D002470:Cell Survival / Q000187:drug effects; D004261:DNA Replication / Q000187:drug effects*; D004354:Drug Screening Assays, Antitumor; D004365:Drugs, Chinese Herbal / Q000302:isolation & purification*; D005910:Glioma; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D057888:Iridoid Glucosides; D039823:Iridoids; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D011714:Pyrans / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D051381:Rats; D013936:Thymidine / Q000378:metabolism
chemical_list: D000970:Antineoplastic Agents; D004365:Drugs, Chinese Herbal; D005960:Glucosides; D057888:Iridoid Glucosides; D039823:Iridoids; D011714:Pyrans; C074968:pentaacetyl geniposide; D013936:Thymidine