Cytotoxic Prenylated Xanthones from the Young Fruit of Garcinia mangostana

Autor: Piniti Ratananukul, Sunit Suksamrarn, Nattapat Lartpornmatulee, Apichart Suksamrarn, Nitirat Chimnoi, Orapin Komutiban
Rok vydání: 2006
Předmět:
Zdroj: ChemInform. 37
ISSN: 1522-2667
0931-7597
DOI: 10.1002/chin.200634209
Popis: Three new prenylated xanthones, mangostenones C (1), D (2), and E (3), together with 16 known xanthones 4-19, were isolated from the young fruit (7-week maturity stage) of Garcinia mangostana. The structural elucidation of the new compounds was mainly established on the basis of 1D and 2D NMR and HR-MS spectroscopic analysis. Compound 1 showed cytotoxic properties against three human cancer cell lines, epidermoid carcinoma of the mouth (KB), breast cancer (BC-1), and small cell lung cancer (NCI-H187), with IC50 values of 2.8, 3.53, and 3.72 microg/ml, respectively. Among the isolates, alpha-mangostin (12), the major metabolite, exhibited the most potent effects against the BC-1 cells with an IC50 value of 0.92 microg/ml, an activity greater than that of the standard drug ellipticine (IC50 = 1.46 microg/ml). Compound 12 also showed the highest activity against KB cells, while gartanin (10) displayed the strongest activity against the NCI-H187 cells at the respective IC50 values of 2.08 microg/ml and 1.08 microg/ml.
Databáze: OpenAIRE