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-  2017 

X射线致EA.Hy926内皮细胞血管损伤模型的建立 Establishment of X-Ray Induced EA.Hy926 Endothelial Injury Model

Keywords: 常规分割照射,EA.Hy926,炎症相关因子,放疗后血管损伤

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Abstract:

目的:探讨构建血管内皮细胞持续分泌炎症因子的血管损伤模型的方法。方法:2 Gy分割剂量的6 MV-X线(2Gy/F,5F/W,总计40Gy)照射人脐静脉融合细胞系EA. Hy926,照射野35cm×35cm,源皮距100cm。在照射期间及末次照射后1月,2月,3月,4月,5月提取细胞总RNA、总蛋白,以未照射组为对照组,采用实时荧光定量RT-PCR方法检测炎症相关因子转录水平表达情况,Western Blot法检测炎症因子蛋白水平的表达情况。结果:经2Gy×20次放疗后1-5月,人脐静脉融合细胞系EA. Hy926细胞炎症因子,与对照组相比,在转录与蛋白水平,表达均升高(P<0.05)。结论:放射性血管损伤细胞模型中,内皮细胞EA. Hy926炎症因子表达上调,导致放疗后血管损伤,促进放疗后晚期皮肤纤维化的发生

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