移植方法对自体骨骼肌卫星细胞心肌再生的影响

被引:6
作者
钟竑
朱洪生
卫洪超
张臻
崔世涛
机构
[1] 上海第二医科大学仁济医院心胸外科!上海
关键词
急性心肌梗塞; 骨骼肌卫星细胞; 细胞移植; 心肌再生;
D O I
暂无
中图分类号
学科分类号
摘要
目的研究不同移植方法对骨骼肌卫星细胞心肌内移植后心肌再生作用的影响。 方法自犬臀部取骨骼肌提取、培养、扩增骨骼肌卫星细胞 ,4’ ,6 -diamidino - 2 - phenylindone(DAPI)荧光标记 ,经局部注射和结扎的左冠状动脉前降支远端灌注移植入自体急性心肌梗塞区域 ,2、4、8周后处死动物 ,取心肌标本行组织形态学检查。结果DAPI标记卫星细胞效果良好 ,在梗塞区、乳头肌及局部注射部位均观察到带荧光的卫星细胞 ,部分已分化成带横纹的肌纤维并以闰盘相连。经冠状动脉灌注移植的卫星细胞排列有序 ,与心肌细胞排列方向一致 ,而局部注射移植的卫星细胞排列紊乱。 结论骨骼肌卫星细胞经冠状动脉灌注移植所形成的肌纤维排列有序 ,分布于整个梗塞区域 ,有利于心肌再生。
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页码:481 / 483+496 +496
页数:4
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