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SiRNA-ID-1对人肝癌细胞HepG2裸鼠皮下移植瘤生长的影响

The Effects of RNA Interference Targeting ID-1 on the Growth of Hepatocellular Carcinoma Xenografts in Nude Mice
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摘要 目的:观察以RNA干扰技术沉默ID-1表达对人肝癌细胞HepG2裸鼠皮下移植瘤生长的抑制作用,探讨抑制ID-1表达对肝癌可能存在的抑癌作用。方法:向BALB/C-nu系雄性裸鼠皮下注射HepG2细胞建立裸鼠荷瘤模型,成瘤后随机将裸鼠分为空白组、转染对照组和siRNA-ID-1处理组,在第1、4、7、10和13 d分别注射等量的生理盐水、control-siRNA和甲基化的siRNA-ID-1。每周测量肿瘤体积,绘制肿瘤生长曲线。于第28 d处死裸鼠,取肿瘤组织行常规HE染色。结果:siRNA-ID-1处理组裸鼠肿瘤体积较空白组和转染对照组的体积小(P < 0.05);转染后癌细胞凋亡增多,空白组及转染对照组瘤细胞排列密集,细胞界限不清,生长活跃,核大深染,有较多核分裂象。结论:以siRNA技术沉默肝癌移植瘤组织中的ID-1表达可抑制肿瘤的生长,ID-1具有促肿瘤生长作用。
出处 《世界肿瘤研究》 2013年第4期38-43,共6页 World Journal of Cancer Research
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