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Cx43基因修饰对人肺鳞癌NCI-H226细胞增殖和迁移能力的影响

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摘要 目的通过重组质粒p Bud CE4.1-Cx43转染人肺鳞癌NCI-H226细胞,探讨Cx43基因对细胞的生长、细胞周期及肿瘤迁移等的作用。方法用LipofectamineTM2000转染的方法将重组表达质粒p Bud CE4.1-Cx43转染人肺鳞癌NCI-H226细胞,通过RT-PCR、Western印迹检测Cx43在转染后的mRNA和蛋白的表达情况,划痕染料示踪法检测细胞间通讯功能,流式细胞仪检测细胞周期并通过CCK-8增殖实验、划痕愈合实验、细胞侵袭实验评价转染Cx43基因对人肺鳞癌NCI-H226细胞增殖、迁移、侵袭能力的影响。结果实验组Cx43 mRNA和蛋白表达较对照组和空白组显著升高(P<0.05);细胞传递的荧光强度较对照组和空白组显著升高(P<0.01),实验组细胞的生长速度明显减慢,细胞周期被阻滞在G0/G1期,S期细胞数明显减少(P<0.05)。与对照组和空白组相比,实验组NCI-H226细胞增殖受到明显抑制(P<0.001),尤以72 h为著。实验组迁移能力、NCIH226细胞的侵袭能力显著下降(P<0.05)。结论转染Cx43基可抑制人肺鳞癌NCI-H226细胞的迁移能力,并抑制肿瘤细胞增殖。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2015年第10期2633-2636,共4页 Chinese Journal of Gerontology
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