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자료유형
학술저널
저자정보
Moon, Jeong-Yong (Faculty of Biotechnology, Cheju National University) Kim, Ha-Na (Faculty of Biotechnology, Cheju National University) Cho, Moon-Jae (Department of Medicine, Cheju National University) Chang, Weon-Young (Department of Medicine, Cheju National University) Kim, Cheong-Tae (Food Safety Research Institute, Nong Shim Co., LTD) KimCho, So-Mi (Faculty of Biotechnology, Cheju National University)
저널정보
한국응용생명화학회 Applied Biological Chemistry Applied Biological Chemistry 제52권 제2호
발행연도
2009.1
수록면
168 - 175 (8page)

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The anticancer effect of Dangyuja (Citrus grandis Osbeck) leaf extract was investigated using SNU-16 human gastric cancer cells. Maximum cytotoxicity was observed from the chloroform fraction (CF) of the extract. Cell death was dose-dependent ($IC_{50}$=ca. 92.15 ${\mu}g/mL$), and was characterized by apoptotic body formation and DNA fragmentation. Flowcytometric analysis showed that treatment of CF resulted in a marked accumulation of cells in the sub-G1 phase. The induction of apoptosis was confIrmed by caspase-3 activity assays and immunoblotting using antibodies against Bid, Bcl-2, Bax, poly (ADP-ribose) polymerase, caspase-9, caspase-8, caspase-7, and caspase-3. Analyses of the CF by gas chromatography (GC) and GC-mass spectrometry tentatively identifIed 21 compounds, including linoleic acid, linolenic acid, palmitic acid, ${\alpha}$-amyrin, ${\gamma}$-sitosterol, dihydrolanosterol, methyl palmitate, and nobiletin. These results provided the fIrst evidence that the CF of a Dangyuja leaf extract induces apoptosis in SNU-16 cells. Our findings may lead to new strategies for the treatment of human gastric cancer.

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