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MTA1基因表达与子宫颈癌细胞侵袭转移的关系 被引量:5

Relationship between MTA1 expression and invasive and metastatic ability of cervical cancer cell
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摘要 目的探讨MTA1基因表达与宫颈癌细胞侵袭转移的关系。方法将真核细胞表达载体pcDNA3质粒、MTA1基因表达载体pcDNA3-MTA1质粒、MTA1基因RNA干扰载体pSilencer3.1-MTA1-siRNA质粒稳定转染宫颈癌细胞株CaSki细胞(分别命名为对照组、MTAl组、MTA1-siRNA组),逆转录(RT)-PCR技术和蛋白印迹法检测CaSki细胞中MTA1 mRNA和蛋白的表达,四甲基偶氮唑蓝(MTT)比色法及平板集落形成实验检测CaSki细胞的增殖情况,划痕实验、穿膜实验检测CaSki细胞的迁移能力,基质黏附实验检测CaSki细胞的黏附能力,细胞侵袭实验检测CaSki细胞的侵袭能力,流式细胞仪检测CaSki细胞的细胞周期比例。将3组CaSki细胞接种于裸鼠腋下,观察其在裸鼠体内的生长情况。结果MTA1组细胞中MTA1 mRNA和蛋白的表达强度均明显高于对照组,而MTA1-siRNA组细胞中MTA1 mRNA和蛋白的表达强度均明显低于对照组。MTT比色法检测显示,与对照组比较,自第2天起,MTA1组细胞的生长速度加快,而MTA1-siRNA组细胞的生长速度减慢,分别比较,差异均有统计学意义(P〈0.05);平板集落形成实验显示,对照组、MTA1组、MTA1-siRNA组的克隆数分别为(1334-6)、(1694-10)和(57±5)个,MTAl组明显多于对照组(P〈0.05),而MTA1-siRNA组明显少于对照组(P〈0.05)。划痕实验显示,MTA1组细胞的迁移能力明显增强,而MTA1-siRNA组细胞的迁移能力明显减弱;穿膜实验显示,对照组、MTA1组、MTA1-siRNA组穿膜细胞数分别为(153±17)、(247±38)和(82-4-10)个,MTA1组明显多于对照组(P〈0.05),而MTA1-siRNA组明显少于对照组(P〈0.05)。基质黏附实验显示,孵育90min时,对照组、MTA1组、MTA1-siRNA组细胞的黏附率分别为(69.3±3.6)%、(80.4±5.6)%、(39.2±7.4)%,MTA1组明显高于对照组(P〈0.05),而MTA1-siRNA组明显低于对照� Objective To investigate the relationship between metastasis-associated gene 1 ( MTA1 )
出处 《中华妇产科杂志》 CAS CSCD 北大核心 2011年第9期678-683,共6页 Chinese Journal of Obstetrics and Gynecology
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