山东大学学报 (医学版) ›› 2018, Vol. 56 ›› Issue (10): 103-109.doi: 10.6040/j.issn.1671-7554.0.2018.590
• • 上一篇
王永1,姜晨2,周士英1,杨晓玫3
WANG Yong1, JIANG Chen2, ZHOU Shiying1, YANG Xiaomei3
摘要: 目的 探讨宫颈癌组织及细胞系中IQ结构域GTP酶激活蛋白3(IQGAP3)的表达及其对宫颈癌细胞增殖、凋亡和转移的影响。 方法 应用免疫组化和定量PCR检测IQGAP3在宫颈癌组织及癌旁组织中的表达,利用siRNA敲低IQGAP3在宫颈癌细胞CaSki和HeLa中的表达,通过MTT法和流式细胞术分别检测IQGAP3表达对宫颈癌细胞增殖和凋亡的影响,通过Transwell检测IQGAP3表达对宫颈癌细胞迁移的影响,从而探讨IQGAP3在宫颈癌细胞的增殖、凋亡及迁移过程中的作用。 结果 IQGAP3在宫颈癌组织及细胞中高表达,高表达IQGAP3的患者预后较差(χ2=6.15, P=0.01);敲降IQGAP3在宫颈癌细胞CaSki和HeLa的表达后,宫颈癌细胞的增殖受到抑制,凋亡增加,细胞迁移减少,E-cadherin表达增加,N-cadherin表达下调(P均<0.001)。 结论 IQGAP3在宫颈癌组织中表达上调,在宫颈癌细胞增殖和转移过程中发挥重要作用;IQGAP3通过诱导上皮细胞-间充质转变(EMT),促进宫颈癌细胞的转移。
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