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牛视网膜微血管内皮细胞的体外分离培养

Chinese Journal of Ophthalmology and Otorhinolaryngology(2005)

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Abstract
目的探讨一种方便可靠的牛视网膜微血管内皮细胞(borein retinal microvas cular endothelial cell,BREC)体外培养方法.方法采用机械剪碎牛视网膜血管,用含牛血清、肝素、血管内皮生长因子(Vascularendothelial growthfactor,VEGF)的条件化培养基培养牛视网膜血管内皮细胞,观察细胞生长状况,制作生长曲线.应用Von Willebrand因子抗体免疫鉴定BREC,并通过透射电镜观察BREC的超微结构.结果添加了VEGF的条件化培养基对BREC有很好的选择刺激作用,初期细胞呈鲤鱼样聚集在微血管碎片周围,对数生长期细胞似铺路石样大片单层生长,存在接触抑制.Von Willebrand因子抗体染色阳性,获得BREC纯度在95%以上,能够连续传代.培养的细胞电镜下符合内皮细胞的特征.结论含VEGF培养基的应用可以获得高纯度、具有良好生长特性的BREC,是一种简便、效果稳定可靠的体外培养牛视网膜微血管内皮细胞的方法.
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Key words
cell culture,retinal vascular endothelial cell,vascular endothelial growth factor
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