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Tiam1-SiRNA质粒转染HCT116细胞对裸鼠移植瘤淋巴管生成的影响

Chongqing Medicine(2008)

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Abstract
目的 研究Tiam1-SiRNA质粒转染HCT116细胞对裸鼠移植瘤中淋巴管生成的影响.探讨Tiaml与结肠癌淋巴管生成的关系.方法 裸鼠10只随机分为对照组(n=5)和Tiam1-SiRNA组(n=5),将含Tiam1-SiRNA质粒的HCT116细胞进行裸鼠皮下接种,5周后处死动物,留取肿瘤标本.利用Western blot和免疫组化SP法检测Tiaml、Racl、VEGF-C/D蛋白水平的表达,并进行肿瘤淋巴管染色计数.结果 干扰组移植瘤中Tiaml、Racl、VEGF-C、VEGF-D蛋白表达较对照组显著降低(P<0.01),肿瘤内淋巴管生成也显著减少(P<0.01).结论 通过RNA干扰技术抑制Tiaml的表达,在裸鼠体内可显著抑制移植瘤组织内淋巴管生成.
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Key words
Tiam1-SiRNA,colorectal carcinoma,lymphangiogenesis
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