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机构地区:[1]杭州师范大学附属余杭医院,杭州311100 [2]浙江大学医学院附属第二医院
出 处:《中华肝胆外科杂志》2012年第4期302-304,共3页Chinese Journal of Hepatobiliary Surgery
基 金:基金项目:基金项目:浙江省科技厅厅长基金项目(2007C30037)
摘 要:目的评价二十碳五烯酸(EPA)体外抑制人肝胆管癌FRH-0201细胞增殖和诱导细胞凋亡的能力。方法在处于指数生长期的FRH-0201细胞株培养基中添加EPA,采用噻唑蓝法、流式细胞仪等方法检测人肝胆管癌FRH-0201细胞株的生长和增殖情况。通过生化检测及组织化学等方法,研究EPA对人肝胆管癌FRH-0201细胞生长的抑制作用。结果EPA作用后,人肝胆管癌FRH0201细胞增殖受抑制。随EPA浓度的递增FRH-0201细胞增殖率逐次下降,呈现明显量效关系,同时诱导细胞凋亡;流式细胞仪检测出凋亡峰,经不同浓度EPA作用后,人肝胆管癌FRH-0201细胞的超氧化物歧化酶(SOD)活性显著或极显著降低(P〈0.05;P〈0.001),丙二醛(MDA)含量极显著上升(P〈0.01;P〈0.001)。结论EPA可能通过增加脂质过氧化反应而阻遏人肝胆管癌FRH-0201细胞的增殖,诱发细胞凋亡。Objective To evaluate the effect of eicosapentaenoic acid (EPA) on the inhibition of proliferation and the induction of apoptosis of human cholangiocarcinoma cell lines FRH 0201. Methods Exponentially growing human cholangiocarcinoma cell lines FRH-0201 were exposed to EPA in vitro and cell growth was assessed by methylthiazolyl tetrazolium assay (MTT) assay, agarose gel electrophoresis and flow cytometry. Results After adding EPA, the proliferation of FRH-0201 cells were inhibited in a dose-dependent manner while apoptosis was induced. Flow cytometry detected apoptosis peaks and we found that superoxide dismutase (SOD) activity reduced significantly (P〈0.05, respectively; P〈0. 001) while malondialdehyde (MDA) rose significantly (P 〈 0.01, respectively; P〈0. 001) after adding EPA with differing concentrations to human cholangioearcinoma cell lines FRH-0201. Conclusions EPA can induce apoptosis of FRH-0201 cells in vitro and inhibit proliferation, possibly through increasing the lipid peroxidation.
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