title: Sesquiterpenoids from Pulicaria canariensis and their cytotoxic activities.
abstract: Thirteen new sesquiterpenes, pulicanadiene A (1), B (2), and C (3), pulicanone (4), pulicanol (5), pulicanarals A (6), B (7), and C (8), pulicanadienals A (9) and B (10), pulicanadienol (11), and pulioplopanones A (12) and B (13), and seven known compounds, stigmasterol, ergosterol peroxide, calenduladiol, 7,4'-di-O-methyldihydrokaempferol, 5,7-dihydroxy-3,3',4'-trimethoxyflavone, dihydroquercetin 7,3'-dimethyl ether, and 6,15alpha-epoxy-1beta,4beta-dihydroxyeudesmane, were isolated from Pulicaria canariensis. Compound 4a showed cytotoxicity on the human myeloid leukemia cell line HL-60. The cytotoxicity was caused by induction of apoptosis as determined by microscopy of nuclear changes, activation of caspases, and the cleavage of poly(ADP-ribose) polymerase-1.
authors.affiliation: Departamento de Química, Universidad de Las Palmas de Gran Canaria, Campus de Tafira, 35017 Las Palmas de Gran Canaria, Spain.
authors.forename: Jorge
authors.initials: J
authors.lastname: Triana
authors.forename: Mariana
authors.initials: M
authors.lastname: López
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: Pérez
authors.forename: Javier
authors.initials: J
authors.lastname: González-Platas
authors.forename: José
authors.initials: J
authors.lastname: Quintana
authors.forename: Francisco
authors.initials: F
authors.lastname: Estévez
authors.forename: Francisco
authors.initials: F
authors.lastname: León
authors.forename: Jaime
authors.initials: J
authors.lastname: Bermejo
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D017209:Apoptosis / Q000187:drug effects*; D019659:Asteraceae / Q000737:chemistry*; D020169:Caspases / Q000378:metabolism; D004354:Drug Screening Assays, Antitumor; D005707:Gallic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D005947:Glucose / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D018922:HL-60 Cells; D006801:Humans; D010946:Plants, Medicinal / Q000737:chemistry*; D011065:Poly(ADP-ribose) Polymerases / Q000378:metabolism; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D013030:Spain; D014407:Tumor Cells, Cultured
chemical_list: C500768:1-O-galloyl-6-O-luteoyl-alpha-D-glucose; D000972:Antineoplastic Agents, Phytogenic; D012717:Sesquiterpenes; D005707:Gallic Acid; D011065:Poly(ADP-ribose) Polymerases; D020169:Caspases; D005947:Glucose