癌胚抗原相关细胞黏附分子-6在人肝门部胆管癌细胞株
QBC939中的表达及其在侵袭转移中的作用
黄尧;曾永毅;刘景丰;林科灿;罗顺峰;张翔
【期刊名称】《中华实验外科杂志》 【年(卷),期】2012(029)011
【摘要】目的 观察癌胚抗原相关细胞黏附分子-6(CEACAM6)在人肝门部胆管癌细胞株QBC939中的表达,探讨其在侵袭转移中的作用.方法 实时定量聚合酶链反应(Real-time PCR)检测CEACAM6在QBC939细胞中的表达;构建CEACAM6的RNA干扰(RNAi)慢病毒载体,并感染QBC939细胞,Real-time PCR验证RNAi效果;Transwell侵袭试验检测QBC939细胞体外侵袭力的改变.结果 CEACAM6在QBC939细胞中高表达.成功构建CEACAM6基因RNAi慢病毒载体并转染QBC939细胞.和对照组比较,RNAi组CEACAM6 mRNA表达抑制率为93.1% (P <0.05);Tran-swell实验提示RNAi后,侵袭细胞OD570 RNAi组(0.09 ±0.01)明显少于对照组(0.13 ±0.02),侵袭抑制率为69.2% (P <0.05).结论 CEACAM6在QBC939细胞中高表达,其表达程度与肝门部胆管癌细胞侵袭转移能力呈正相关.%Objective To explore the expression of carcinoembryonic antigen-related cell adhesion molecule 6 (CEACAM6) in human hilar cholangiocarcinoma cell line QBC939 and its roles in invasion and metastasis.Methods Real-time polymerase chain reaction (real-time PCR) was used to detect the expression of CEACAM6 in QBC939 cells.Lentiviral-mediated CEACAM6 small interfering RNA (siRNA) was established to infect QBC939 cells.The silencing effect was