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CD137L对结肠癌细胞株Colo 205生物学行为的影响

Cancer Research on Prevention and Treatment(2011)

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Abstract
目的探讨CD137L对结肠癌细胞株Colo 205生物学行为的影响及其在结直肠癌发生发展中的可能意义。方法 Colo 205细胞在未包被、CD137/Fc包被或IgG1Fc包被的培养板中培养24、48及72 h后,CCK-8法测定细胞增殖;培养48 h后,ELISA法检测培养上清液中IL-8的浓度,transwell侵袭实验检测细胞侵袭力。结果 CD137/Fc组细胞增殖与空白组及IgG1Fc组相比均显著增强;IgG1Fc组细胞增殖情况与空白组相比差异无统计学意义。CD137/Fc组的Colo 205细胞培养上清液中IL-8的浓度为(195.3±24.3)ng/ml,显著高于IgG1Fc组及空白组(P值均为0.000);IgG1Fc组培养上清液中IL-8的浓度为(52.7±11.4)ng/ml,空白组培养上清液中IL-8的浓度为(54.7±12.5)ng/ml,两组IL-8浓度差异无统计学意义(P=0.891)。侵袭实验结果示,CD137/Fc组的迁移细胞数为(105±10)个/视野,显著高于IgG1Fc组及空白组的透膜细胞数(P值均为0.000)。IgG1Fc组的透膜细胞数为(57±3)个/视野,空白组透膜细胞数为(60±6)个/视野,两组差异无统计学意义(P=0.602)。结论 CD137L能显著促进Colo205细胞的增殖、IL-8分泌及增强细胞的侵袭力,CD137L可能在结直肠癌的发生进展及转移中发挥作用。
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Key words
Colorectal cancer,CD137,Invasion,CD137L
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