title: Cytotoxic constituents of the twigs of Simarouba glauca collected from a plot in Southern Florida.
abstract: Activity-guided fractionation of a chloroform-soluble extract of Simarouba glauca twigs collected from a plot in southern Florida, and monitored with a human epidermoid (KB) tumor cell line, afforded six canthin-6-one type alkaloid derivatives, canthin-6-one (1), 2-methoxycanthin-6-one (2), 9-methoxycanthin-6-one (3), 2-hydroxycanthin-6-one (4), 4,5-dimethoxycanthin-6-one (5) and 4,5-dihydroxycanthin-6-one (6), a limonoid, melianodiol (7), an acyclic squalene-type triterpenoid, 14-deacetyleurylene (8), two coumarins, scopoletin (9) and fraxidin (10), and two triglycerides, triolein (11) and trilinolein (12). Among these isolates, compounds 1-4, 7 and 8 exhibited cytotoxic activity against several human cancer cell lines. 14-Deacetyleurylene (8) was selectively active against the Lu1 human lung cancer cell line, but was inactive in an in vivo hollow fiber assay using this same cell type.
authors.affiliation: Program for Collaborative Research in the Pharmaceutical Sciences and Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 60612, USA.
authors.forename: J Fausto
authors.initials: JF
authors.lastname: Rivero-Cruz
authors.forename: Raphael
authors.initials: R
authors.lastname: Lezutekong
authors.forename: Tatiana
authors.initials: T
authors.lastname: Lobo-Echeverri
authors.forename: Aiko
authors.initials: A
authors.lastname: Ito
authors.forename: Qiuwen
authors.initials: Q
authors.lastname: Mi
authors.forename: Hee-Byung
authors.initials: HB
authors.lastname: Chai
authors.forename: Djaja D
authors.initials: DD
authors.lastname: Soejarto
authors.forename: Geoffrey A
authors.initials: GA
authors.lastname: Cordell
authors.forename: John M
authors.initials: JM
authors.lastname: Pezzuto
authors.forename: Steven M
authors.initials: SM
authors.lastname: Swanson
authors.forename: Ivano
authors.initials: I
authors.lastname: Morelli
authors.forename: A Douglas
authors.initials: AD
authors.lastname: Kinghorn
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000494:pharmacology*; D045744:Cell Line, Tumor / Q000187:drug effects; D005431:Florida; D006801:Humans; D008517:Phytotherapy; D035261:Plant Components, Aerial; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*; D032272:Simarouba; D013329:Structure-Activity Relationship
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D010936:Plant Extracts