title: A novel cytotoxic flavonoid glycoside from Physalis angulata.
abstract: A new flavonol glycoside, myricetin 3-O-neohesperidoside (1) was isolated from a cytotoxic MeOH extract of the leaves of Physalis angulata. Compound 1 showed remarkable cytotoxicity in vitro against murine leukemia cell line P-388, epidermoid carcinoma of the nasopharynx KB-16 cells, and lung adenocarcinoma A-549 with ED(50) values of 0.048, 0.50 and 0.55 microg ml(-1), respectively.
authors.affiliation: College of Pharmacy, University of Houston, 4800 Calhoun, Houston, TX 77204-5515, USA. nargisi@hotmail.com
authors.forename: N
authors.initials: N
authors.lastname: Ismail
authors.forename: M
authors.initials: M
authors.lastname: Alam
mesh_terms: D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000494:pharmacology*; D005419:Flavonoids / Q000737:chemistry / Q000494:pharmacology*; D006027:Glycosides / Q000737:chemistry / Q000494:pharmacology*; D006801:Humans; D020128:Inhibitory Concentration 50; D007624:KB Cells / Q000187:drug effects; D051379:Mice; D008517:Phytotherapy; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*; D018515:Plant Leaves; D019657:Solanaceae; D014407:Tumor Cells, Cultured / Q000187:drug effects
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D005419:Flavonoids; D006027:Glycosides; D010936:Plant Extracts; C438744:myricetin 3-O-neohesperidoside