阻断notchnotch信号通路抑制剂应在何时在培养细胞中加入dapt

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《中国学术期刊(网络版)》
DAPT抑制妊娠滋养细胞肿瘤Notch信号通路对细胞增殖和EMT影响的研究
【Author】
Zhou YXue YTian QDepartment of Obstetrics and Gynecology,The First Affiliated Hospital,Xi’an Jiao Tong U
【摘要】 目的:探讨Notch信号通路在人妊娠滋养细胞肿瘤发生发展过程中的重要作用,及其与EMT之间的关系。方法:采用γ-分泌酶抑制剂DAPT处理JAR和JEG-3两种人绒毛膜癌细胞株,MTT法检测两种细胞株的增殖情况,q PCR法检测Notch1 mRNA表达。Western blot法检测DAPT阻断Notch信号通路后JAR细胞中EMT相关蛋白E-cad的表达情况。结果:DAPT能抑制JEG-3、JAR细胞生长,10μmol/L和15μmol/L DAPT作用48h开始分别抑制JEG-3和JAR细胞生长(P&0.05),且抑制作用呈时间和浓度依赖关系。JEG-3细胞中,1μmol/L和10μmol/L DAPT作用组中Notch1 mRNA表达下调,两组比较差异无统计学意义(P&0.05);JAR细胞中,10μmol/L和15μmol/L DAPT作用组中Notch1 mRNA表达下调,两组比较差异有统计学意义(P&0.05)。DAPT能上调JAR细胞中E-cad表达。结论:Notch信号通路和EMT与妊娠滋养细胞肿瘤的发生发展有关;γ-分泌酶抑制剂DAPT或可成为妊娠滋养细胞肿瘤治疗的一个新靶点。
【关键词】 ;
国家自然科学基金资助项目(No:)
【所属期刊栏目】
(2015年05期)
【DOI】10.ki.xdfckjz.
【分类号】R737.33
【网络出版时间】 09:43
【下载频次】81
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