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沙立度胺对ECV_(304)细胞增生的抑制作用研究 被引量:4

Study on mechanisms of the antiangiogenesis of thalidomide in vitro
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摘要 目的 在体外探讨沙立度胺 (thalidomide,反应停 )抗血管新生的作用机制。方法  MTT法检测反应停对人脐静脉内皮细胞株 ECV30 4 细胞增殖的抑制率 ;RT- PCR检测血管新生相关基因的表达 ;凝胶电泳迁移率实验(EMSA)检测反应停对 NF-κB活化的影响。结果 反应停对 ECV30 4 细胞增殖的抑制效应与药物浓度呈正相关 (r=0 .999,P<0 .0 0 1) ,当 5 0μg/ ml反应停处理 72小时 ,其抑制率为 34% ;2 5μg/ m l反应停处理 2 4小时 ,ECV30 4 细胞VEGF m RNA相对表达量明显低于对照组 (0 .4 8± 0 .14 vs 0 .98± 0 .18,P=0 .0 0 5 ) ;与对照组相比 ,IL - 8m RNA相对表达量无明显减少 (5 .77± 0 .4 4 vs 5 .99± 0 .5 2 ,P>0 .0 5 ) ;αv 整合素亚基 m RNA相对表达量明显低于对照组(0 .4 7± 0 .13vs 0 .82± 0 .18,P=0 .0 2 9) ,而β5整合素亚基 m RNA相对表达量与对照组相比 ,差异无显著性 (1.5±0 .5 2 vs 1.37± 0 .81,P>0 .0 5 )。当药物浓度为 5 0μg/ m l时 ,NF-κB转录因子活性明显降低 ,且其对 NF-κB活化的抑制与药物浓度有关。结论 反应停抑制血管新生可能与其通过直接抑制内皮细胞增殖、下调 VEGF和αv 整合素亚基表达以及抑制 NF-κB的活化等多个环节有关。
出处 《实用肿瘤杂志》 CAS 2005年第1期36-39,共4页 Journal of Practical Oncology
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参考文献10

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共引文献12

同被引文献23

  • 1郭振兴,金洁,吴灵娇.AS_2O_3对多发性骨髓瘤细胞凋亡及其对自分泌VEGF的影响[J].实用肿瘤杂志,2005,20(3):231-233. 被引量:7
  • 2赵国旗,许奕,王蔷.鼻咽癌放射治疗前测定血管内皮生长因子的意义[J].中西医结合学报,2005,3(4):274-277. 被引量:12
  • 3贾正平.手性药物不同对映体在临床中的应用[J].西北国防医学杂志,2006,27(2):132-134. 被引量:1
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