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KMID : 0613820160260020241
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Journal of Life Science
2016 Volume.26 No. 2 p.241 ~ p.246
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Anti-proliferative and Pro-apoptotic Effects by Lees Extracts of Ehwa Makgeolli Containing Oriental Herbs
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Kwon Min-Jeong
Lee Seung-Hoon
Chung Chung-Wook
Sohn Ho-Yong
Shin Woo-Chang
Kim Jong-Sik
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Abstract
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In the present study, ethanol extracts and their subsequent organic solvent fractions were extracted from the lees of Ehwa Makgeolli containing oriental herbs, a commercialized traditional Korean rice wine, and the prepared lees samples were designated as from KSD-E3-1 to KSD-E3-5. First, their effects on cell viability and on the expression of pro-apoptotic ATF3 and NAG-1 genes in human colorectal HCT116 cells were investigated. Among the treated lees samples, the hexane fraction (KSD-E3-2) and the ethyl acetate fraction (KSD-E3-3) of lees extracts from Ehwa Makgeolli significantly reduced cell viabilities, in a dose dependent manner. The treatment with KSD-E3-2 and KSD-E3-3 also increased the expression of pro-apoptotic NAG-1 and ATF-3 genes and their proteins, which were detected with RT-PCR and Western blot analysis, respectively. In addition, poly-(ADP-ribose) polymerase (PARP) cleavage was detected by treatment with the fraction KSD-E3-3, indicating that KSD-E3-3 could induce apoptosis in HCT116 cells. Interestingly, this PARP cleavage was recovered by transfection of NAG-1 small interfering RNA. The results indicate that NAG-1 is one of the genes responsible for apoptosis induced by the fraction KSD-E3-3 from Ehwa Makgeolli. Overall, the findings may help in understanding the molecular mechanisms of the anti-proliferative and pro-apoptotic activities mediated by the lees of Ehwa Makgeolli.
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KEYWORD
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Anti-proliferation, apoptosis, Ehwa Makgeolli, lees, NAG-1
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