自体内皮细胞移植重建损伤动脉血管内皮的可行性研究The feasibility of endothelial reconstruction in the injured arterial wall by autologus endothelial cells transplantation
武晓静,黄岚,晋军,赵刚,蒋世忠,张坡,宋明宝
摘要(Abstract):
目的 探讨自体内皮细胞移植重建损伤动脉内皮的可行性。方法 2 0只健康雄性纯种新西兰大白兔行双侧髂股动脉球囊损伤 ,一侧于损伤后立即经球囊导管行自体静脉内皮细胞移植 ,另一侧为培养基对照。其中 10只动物分别于术后 4h、4d处死 ,行扫描电镜检查 ;5只动物 ,先将细胞用荧光标记物标记后 ,再移植入体内 ,4d后进行荧光示踪检查 ;其余 5只动物于术后 4d行Evansblue染色 ,观察血管通透性变化。结果 术后 4h ,对照组见整个内皮层剥脱 ,暴露出内皮下弹力膜及平滑肌 ,细胞移植组则见部分移植内皮已黏附在内皮剥脱血管壁 ,细胞呈圆形 ,但尚未铺展。细胞移植后4d ,移植的内皮已变形 ,铺展在内皮剥脱血管壁 ,大量荧光标记内皮细胞被覆在内皮剥脱血管段的血管内膜 ,对照组损伤血管几乎完全被Evansblue染成蓝色 ,细胞移植组损伤血管则 6 0 %不被Evansblue着染。结论 自体内皮细胞能有效地经球囊导管移植到内皮损伤血管段。
关键词(KeyWords): 细胞移植;内皮,血管;血管损伤
基金项目(Foundation): 国家自然科学基金资助 ( 3 0 2 70 5 68)
作者(Author): 武晓静,黄岚,晋军,赵刚,蒋世忠,张坡,宋明宝
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