Isolation and characterization of a new compound from Prunus mume fruit that inhibits cancer cells

Journal of Agricultural and Food Chemistry
Jong Tae JeongChul Soo Shin

Abstract

An active compound that inhibits cancer cells was isolated from the fruit of Prunus mume, and its structure and in vitro activities were characterized. The n-hexane fraction obtained from methanol extracts exhibited the strongest inhibitory effect on the growth of cancer cells. From the n-hexane fraction, a new compound named B-1 was purified through preparative thin-layer chromatography, ODS column chromatography, and reverse phase high-performance liquid chromatography and its structure was analyzed by fast atom bombardment mass spectrometry and 1H and 13C NMR. The molecular formula of B-1 was C19H22O6 {2-hydroxy-1-[(7-hydroxy-2-oxo-2H-chromen-6-yl)methyl]-2-methylpropyl-(2Z)-3-methyl-but-e-enoate:prunate}, and the IC50 value was in the range of 39-58 microg/mL in descending order of the cancer cell lines Hep-2, SW-156, HEC-1-B, and SK-OV-3. B-1 exhibited 81-96% inhibition at a concentration level of 100 microg/mL against all cells, based on an 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide assay. However, B-1 showed little effect against normal cells with only 23% or less growth inhibition at 100 microg/mL. Thus, B-1 has a highly specific inhibitory effect against cancer cells but little effect against normal c...Continue Reading

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Citations

Oct 14, 2008·Genes & Nutrition·Yu Na YounSoon Young Choi
May 24, 2008·Natural Product Reports·Otto Sticher
Sep 20, 2008·Journal of Medicinal Food·Soyoung KimTaesun Park
Mar 4, 2008·Biological & Pharmaceutical Bulletin·Sangchai YingsakmongkonYasuo Suzuki
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