title: 11-oxoaerothionin: a cytotoxic antitumor bromotyrosine-derived alkaloid from the Caribbean marine sponge Aplysina lacunosa.
abstract: A new cytotoxic bromotyrosine-derived secondary metabolite, 11-oxoaerothionin [3], was isolated from the Caribbean sea sponge Aplysina lacunosa. The structure of 3 was argued on the basis of detailed spectroscopic analysis and by chemical conversion to the known antibiotic compound 11-hydroxyaerothionin [2]. When screened against a panel of four human cell lines, 11-oxoaerothionin [3] showed pronounced as well as selective antitumor activity toward the human colon (HCT 116) cell line within the limited concentration range of 0.01-0.1 microgram/ml.
authors.affiliation: Department of Chemistry, University of Puerto Rico, Río Piedras 00931.
authors.forename: A L
authors.initials: AL
authors.lastname: Acosta
authors.forename: A D
authors.initials: AD
authors.lastname: Rodríguez
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000302:isolation & purification*; D002470:Cell Survival / Q000187:drug effects; D003110:Colonic Neoplasms; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D015394:Molecular Structure; D010080:Oxazoles / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D011161:Porifera / Q000737:chemistry*; D013141:Spiro Compounds / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology
chemical_list: D000970:Antineoplastic Agents; D010080:Oxazoles; D013141:Spiro Compounds; C077375:11-oxoaerothionin