牛蒡苷通过激活p38 MAPK抑制舌癌Tca8113细胞增殖的实验研究
2016-01-11于四海,严晓峰
牛蒡苷通过激活p38 MAPK抑制舌癌Tca8113细胞增殖的实验研究*
于四海严晓峰
(重庆市公共卫生医疗救治中心口腔科, 重庆 400036)
【摘要】目的探讨牛蒡子苷对于人舌鳞状细胞癌Tca8113细胞增殖的调节作用及相关的分子机制。方法将Tca8113细胞分为对照组(Control组)、牛蒡苷干预组(ATG干预组)及牛蒡苷+p38 MAPK抑制剂SB203580组(ATG+SB组)3组。使用MTT法对不同时间点(0 h,24h和72h)各组Tca8113细胞活性进行检测;使用western blot法对干预24小时后Tca8113细胞的p38 MAPK的活化水平及caspase-3的活化水平进行分析。结果与对照组相比,给予牛蒡苷干预的Tca8113细胞活性呈时间依赖性下降,差异均有统计学意义(P均<0.05),且各时间点ATG组较ATG+SB组细胞活性下降程度更加明显,差异均有统计学意义(P均<0.05)。干预24小时后,给予牛蒡苷干预的Tca8113细胞p38 MAPK及caspase-3的活化水平均有显著的上升,差异有统计学意义(P均<0.05);但ATG组较ATG+SB组细胞p38 MAPK及caspase-3的活化水平上升更加明显,差异有统计学意义(P均<0.05)。结论牛蒡苷可以通过激活p38 MAPK促进人舌鳞状细胞癌Tca8113细胞caspase-3的活化,从而抑制Tca8113细胞的增殖。本实验为牛蒡子苷应用于舌癌和其他肿瘤的临床治疗奠定了一定的基础。
【关键词】Tca8113细胞; 牛蒡子苷; P38 MAPK; Caspase-3
【中图分类号】R 329.2+8【文献标志码】A
基金项目:国家“十二五”科技重大专项课题(2012zx10005-008)
通讯作者:严晓峰,E-mail:yanxiaofeng2015@tom.com
收稿日期:( 2014-09-11; 编辑: 张文秀)
Arctigenin inhibits the proliferation of tongue cancer Tca8113 cells by activation of p38 MAPKYU Sihai, YANG Xiaofeng
(DepartmentofStomatology,ChongqingPublicHealthMedicalCenter,Chongqing400036,China)
Abstract【】ObjectiveTo investigate the inhibitory effect of arctigenin on the proliferation of tongue cancer Tca8113 cells and its potential mechanism. MethodsTca8113 cells were divided into 3 groups including control group, arctigenin (ATG) group and arctigenin+SB203580 group (ATG+SB) group. MTT was used to analyze the cell viabilities of Tca8113 cells in different time points at 0h, 24h and 72h. 24 hours after interventions, the activation of p38 MAPK and caspase-3 were measured by Western blot.ResultsThe cell viabilities of Tca8113 cells were time-dependently reduced by ATG treatment. However, SB203580 blunted this effect of ATG. 24 hours after intervention, the activation of p38 MAPK and caspase-3 were noticeably increased by ATG. Meanwhile, we also found that these effects of ATG were largely abrogated by SB203580. ConclusionThe proliferation were inhibited by arctigenin (ATG) through activation of p38 MAPK/caspase-3 pathway in tongue cancer Tca8113 cells.
【Key words】Tca8113 cells; Arctigenin; P38 MAPK; Caspase-3

舌癌是口腔恶性肿瘤中最常见的类型,同时流行病学研究发现由于人口老龄化和饮食结构的改变舌癌等口腔癌的发病率呈逐年上升趋势,且有年轻化的倾向[1~3]。p38 MAPK是丝裂原活化蛋白激酶信号转导通路中的关键分子,大量研究证实p38 MAPK活化水平对于包括肺癌、结肠癌和宫颈癌在内的多种肿瘤细胞的增殖、分化、转移、血管生成和肿瘤凋亡有重要的调控作用[4-7]。牛蒡苷(Arctigenin, ATG)是中药牛蒡子的最主要的药理成分,研究发现牛蒡苷具有解热镇痛、抑制炎症反应和抑制肿瘤的作用[8-12]。近期研究证实牛蒡苷的药理作用与促进p38 MAPK活化密切相关[12]。本研究拟观察牛蒡苷对于人舌鳞状细胞癌Tca8113细胞增殖的影响和相关的分子机制。
1材料和方法
1.1主要试剂和材料人舌鳞状细胞癌Tca8113细胞株从中国科学院上海细胞库购买;……
