- Study on the constituents of Mexican propolis and their cytotoxic activity against PANC-1 human pancreatic cancer cells.
Study on the constituents of Mexican propolis and their cytotoxic activity against PANC-1 human pancreatic cancer cells.
Journal of natural products (2010-03-24)
Feng Li, Suresh Awale, Yasuhiro Tezuka, Hiroyasu Esumi, Shigetoshi Kadota
PMID20307087
ABSTRACT
Three new flavonoids, (2R,3R)-3,5-dihydroxy-7-methoxyflavanone 3-(2-methyl)butyrate (1), (7''R)-8-[1-(4'-hydroxy-3'-methoxyphenyl)prop-2-en-1-yl]chrysin (2), and (7''R)-8-[1-(4'-hydroxy-3'-methoxyphenyl)prop-2-en-1-yl]galangin (3), together with 41 known compounds (4-44) were isolated from a methanolic extract of Mexican propolis. Compounds 2 and 3 are unique natural flavones containing a 1-phenylallyl moiety. The in vitro preferential cytotoxicity of all the isolates was evaluated against a PANC-1 human pancreatic cell line. Compound 3 displayed the most potent preferential cytotoxicity (PC(50) 4.6 microM) in the nutrient-deprived medium (NDM) and triggered apoptosis-like morphological changes in PANC-1 cells.
MATERIALS
Product Number
Brand
Product Description
Supelco
Mettler-Toledo Calibration substance ME 51143093, Vanillin, traceable to primary standards (LGC)
Supelco
Mettler-Toledo Calibration substance ME 18555, Benzoic acid, analytical standard, (for the calibration of the melting point system), traceable to primary standards (LGC)
Supelco
Benzoic acid, Standard for quantitative NMR, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
Supelco
trans-Ferulic acid, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
Sigma-Aldrich
Benzoic acid, meets analytical specification of Ph. Eur., BP, USP, FCC, E210, 99.5-100.5% (alkalimetric)