白花蛇舌草提取物通过Hippo-YAP信号通路抑制胰腺癌SW1990细胞上皮细胞间质转化

被引:20
作者
王自闯
张娟
陈小永
机构
[1] 河南中医药大学第二临床医学院
关键词
白花蛇舌草提取物; 胰腺癌; Hippo-YAP信号通路; 上皮间质转化;
D O I
暂无
中图分类号
R285 [中药药理学];
学科分类号
100806 [中药药理学];
摘要
目的:探讨白花蛇舌草提取物对胰腺癌SW1990细胞上皮细胞间质转化(EMT)的影响,分析其与Hippo-Yap相关蛋白(YAP)信号通路活化的关系。方法:体外培养胰腺癌SW1990细胞,试验分为7组:对照组(不添加任何药物处理),低剂量组(白花蛇舌草提取物20 mg/ml),中剂量组(白花蛇舌草提取物50 mg/ml),高剂量组(白花蛇舌草提取物100 mg/ml),抑制剂组(XMU-MP-1抑制剂),高剂量+抑制剂组,阳性对照组(冬凌草甲素15μmol/L)。采用CCK-8法检测各组细胞增殖情况;流式细胞仪检测SW1990细胞凋亡情况;Western blot检测YAP及其磷酸化蛋白(p-YAP)、E钙黏附蛋白(E-cadherin)、N-钙黏附蛋白(N-cadherin)、波形蛋白(Vimentin)、α平滑肌动蛋白(α-SMA)、转录因子(Snail)表达情况。结果:与对照组相比,白花蛇舌草提取物不同剂量组SW1990细胞增殖抑制率均显著升高(P<0.05),且高剂量组、阳性对照组均显著高于中剂量组、低剂量组(P<0.05);与对照组相比,抑制剂组SW1990细胞凋亡率、p-YAP及E-cadherin蛋白表达量均显著降低(P<0.05),而高剂量组、阳性对照组及高剂量+抑制剂组均显著升高(P<0.05),且高剂量组、阳性对照组显著高于高剂量+抑制剂组(P<0.05);与对照组相比,抑制剂组YAP、N-cadherin、Vimentin、α-SMA、Snail蛋白表达量显著升高(P<0.05),而高剂量组、阳性对照组及高剂量+抑制剂组均显著降低(P<0.05),且高剂量组、阳性对照组显著低于高剂量+抑制剂组(P<0.05)。结论:白花蛇舌草提取物可能通过活化Hippo-YAP信号通路抑制胰腺癌SW1990细胞EMT的发生。
引用
收藏
页码:1957 / 1961+1966 +1966
页数:6
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