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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/16436


    Title: Apigenin induces caspase-dependent apoptosis in human lung cancer A549 cells through Bax- and Bcl-2-triggered mitochondrial pathway
    Authors: 呂旭峰;HSU-FENG, LU;CHIE, YU-JIE;YANG, MING-SUNG;LEE, CHING-SUNG;JENE-JOHN, FU;楊家欣;YANG, JAI-SING;譚思濰;TAN, TZU-WEI;吳莘華;SHIN-HWAR, WU;YI-SHIH, MA;葉兆雲;SIU-WAN, IP;鍾景光;Chung, Jing-Gung
    Contributors: 生物科技學系
    Date: 2010-06
    Issue Date: 2012-11-23 17:13:04 (UTC+8)
    Abstract: The molecular mechanism and possible signaling pathway of apigenin-induced cytotoxicity and apoptosis in human lung cancer cells has not been reported. We investigated the role of ROS, Ca2+, caspases and Bax proteins and mitochondria membrane potential in apigenin-induced apoptosis in A549 cells. Cells were incubated with different concentrations of apigenin then cell morphological changes, DNA damage, cell viability and apoptosis were determined by Comet assay, and flow cytometric analysis. Sub-G1 phase was also examined. Western blot analysis was used to determined the levels of Bax and Bcl-2 and apoptosis associated proteins, and confocal laser microscope for examining the translocation of associated protein after exposed to apigenin. The results indicated that apigenin induced morphological changes, decreased percentage of viable cells and induced apoptosis dose- and time-dependently. DAPI staining and Comet assay also confirmed that apigenin-induced DNA condensation and damage. The levels of caspase-3, -8 and -9 involved in apigenin-induced apoptosis indicating caspase-dependent pathway was induced by apigenin. Western blotting showed that apigenin promoted cytochrome c levels and also induced dysfunction of mitochondria leading to the release of cytochrome c, AIF and Endo G, causing the activation of caspase-9 and -3, then apoptosis in A549 cells.
    Relation: INTERNATIONAL JOURNAL OF ONCOLOGY
    Appears in Collections:[生物科技學系] 期刊論文

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