Alkaloids from Beach Spider Lily (Hymenocallis littoralis) Induce Apoptosis of HepG-2 Cells by the Fas-signaling Pathway
文献类型: 外文期刊
第一作者: Ji, Yu-Bin
作者: Ji, Yu-Bin;Chen, Ning;Ling, Na;Li, Wen-Lan;Song, Dong-Xue;Gao, Shi-Yong;Zhang, Wang-Cheng;Ma, Nan-Nan;Zhu, Hong-Wei
作者机构:
关键词: Beach spider lily;AHL;HepG-2;apoptosis;cell arrest;cell cycle-regulated protein;Fas signaling
期刊名称:ASIAN PACIFIC JOURNAL OF CANCER PREVENTION ( 影响因子:2.514; 五年影响因子:2.267 )
ISSN: 1513-7368
年卷期: 2014 年 15 卷 21 期
页码:
收录情况: SCI
摘要: Alkaloids are the most extensively featured compounds of natural anti-tumor herbs, which have attracted much attention in pharmaceutical research. In our previous studies, a mixture of major three alkaloid components (5, 6-dihydrobicolorine, 7-deoxy-trans-dihydronarciclasine, littoraline) from Hymenocallis littoralis were extracted, analyzed and designated as AHL. In this paper, AHL extracts were added to human liver hepatocellular cells HepG-2, human gastric cancer cell SGC-7901, human breast adenocarcinoma cell MCF-7 and human umbilical vein endothelial cell EVC-304, to screen one or more AHL-sensitive tumor cell. Among these cells, HepG-2 was the most sensitive to AHL treatment, a very low dose (0.8 mu g/ml) significantly inhibiting proliferation. The non-tumor cell EVC-304, however, was not apparently affected. Effect of AHL on HepG-2 cells was then explored. We found that the AHL could cause HepG-2 cycle arrest at G2/M checkpoint, induce apoptosis, and interrupt polymerization of microtubules. In addition, expression of two cell cycle-regulated proteins, CyclinB1 and CDK1, was up-regulated upon AHL treatment. Up-regulation of the Fas, Fas ligand, Caspase-8 and Caspase-3 was observed as well, which might imply roles for the Fas/FsaL signaling pathway in the AHL-induced apoptosis of HepG-2 cells.
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