Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/61838
標題: Lucidenic acid B induces apoptosis in human leukemia cells via a mitochondria-mediated pathway
作者: Hsu, C.L.
顏國欽
Yu, Y.S.
Yen, G.C.
關鍵字: Ganoderma lucidum;lucidenic acid;HL-60 cells;apoptosis;ganoderma-lucidum;cancer-cells;cytochrome-c;proliferation;triterpene
Project: Journal of Agricultural and Food Chemistry
期刊/報告no:: Journal of Agricultural and Food Chemistry, Volume 56, Issue 11, Page(s) 3973-3980.
摘要: 
Ganoderma lucidum is known as a medicinal mushroom used in traditional Chinese medicine. In the present study, the effect of lucidenic acids (A, B, C, and N) isolated from a new G. lucidum (YK-02) on induction of cell apoptosis and the apoptotic pathway in HL-60 cells were investigated. The results demonstrated that lucidenic acids decreased cell population growth of HL-60 cells, assessed with the MTT assay. The cell cycle assay indicated that treatment of HL-60 cells with lucidenic acid A, C, and N caused cell cycle arrest in the G, phase. Lucidenic acid B (LAB) did not affect the cell cycle profile; however, it increased the number of early and late apoptotic cells but not necrotic cells. Treatment of HL-60 cells with LAB caused loss of mitochondria membrane potential. Moreover, the ratio of expression levels of pro- and antiapoptotic Bcl-2 family members was changed by LAB treatment. LAB-induced apoptosis involved release of mitochondria cytochrome c and subsequently induced the activation of caspase-9 and caspase-3, which were followed by cleavage of poly(ADP-ribose) polymerase (PARP). Pretreatment with a general caspase-9 inhibitor (Z-LEHD-FMK) and caspase-3 inhibitor (Z-DEVD-FMK) prevented LAB from inhibiting cell viability in HL-60 cells. Our finding may be critical to the chemopreventive potential of lucidenic acid B.
URI: http://hdl.handle.net/11455/61838
ISSN: 0021-8561
DOI: 10.1021/jf800006u
Appears in Collections:食品暨應用生物科技學系

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