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促血管生成素-2抑制裸鼠种植瘤生长的研究

Acta Academiae Medicinae Xuzhou(2007)

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Abstract
目的探讨促血管生成素-2(angiopoietin-2,Ang-2)转染入人宫颈癌Hela细胞后对裸鼠种植性肿瘤生长的抑制作用。方法建立Ang-2转染的Hela细胞株,实验动物随机分为:Ang-2组(A组,n=9)、Hela空白对照组(B组,n=9)、pcDNA3空白质粒对照组(C组,n=9)、Hank′s平衡盐溶液组(D组,n=8)4组,比较各组裸鼠成瘤时间和肿瘤体积。结果A组平均成瘤时间为(9.57±1.05)天,较B组〔(3.85±0.83)天〕和C组〔(4.14±0.90〕天〕明显推迟(P<0.01);A组肿瘤体积为(296.72±84.56)mm3,明显小于B组〔(2 100.36±404.52 mm3〕和C组〔(1 887.31±355.03)mm3〕(P<0.01)。D组无皮下肿瘤形成。结论转染Ang-2的人宫颈癌Hela细胞在裸鼠体内的致瘤力明显降低,肿瘤生长成瘤时间延迟,肿瘤的体积显著减小,表明Ang-2可显著抑制肿瘤生长。
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Key words
angiopoietin-2,cervical neoplasms,nude mice,neoplasms,experimental,angiogenesis
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