PEDF对大鼠视网膜血管内皮细胞迁移及VEGF表达的影响THE EFFECT OF PEDF ON THE MIGRATION AND EXPRESSION OF VEGF IN RETINAL MICRO-VASCULAR ENDOTHELIAL CELLS
张杰;杨旭东;申梅淑;
摘要(Abstract):
目的:观察PEDF对体外培养的视网膜微血管内皮细胞迁移及VEGF蛋白表达的影响,初步探讨PEDF抗视网膜内皮细胞迁移的机制。方法:采用细胞划痕实验测定PEDF对糖尿病大鼠视网膜微血管内皮细胞迁移的影响;RT-PCR检测PEDF刺激后15,30,45,60min大鼠视网膜微血管内皮细胞的VEGF水平的变化。结果:PEDF对糖尿病大鼠视网膜微血管内皮细胞迁移具有抑制作用,且可抑制VEGF对糖尿病大鼠视网膜微血管内皮细胞促迁移作用,呈剂量依赖性。结论:PEDF抑制糖尿病大鼠视网膜微血管内皮细胞的迁移,其作用可能与VEGF水平有关。
关键词(KeyWords): 细胞色素上皮衍生因子;视网膜微血管内皮细胞;迁移
基金项目(Foundation): 牡丹江医学院科研项目(B20082)
作者(Authors): 张杰;杨旭东;申梅淑;
DOI: 10.13799/j.cnki.mdjyxyxb.2010.02.053
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