海藻酸盐支架-骨髓间充质干细胞复合物在急性肝衰竭大鼠体内的应用

目的: 探讨海藻酸盐支架-骨髓间充质干细胞(BMSCs)复合物在急性肝衰竭大鼠体内应用的可能性,为人工肝组织的体内应用提供基础。方法: BMSCs用氯甲基苯甲酰氨荧光染料(CM-DiI)标记后种植于海藻酸盐支架形成支架细胞复合物。动物分实验组和对照组,构建70%肝切除大鼠模型,实验组大鼠给予支架细胞复合物平铺于肝脏创面上,对照组给予单纯支架。4周后取出支架细胞复合物行荧光显微镜追踪观察;切片行白蛋白及糖原染色追踪支架上细胞的分化;同时比较两组大鼠生存率及肝功能变化情况。结果: CM-DiI能很好地标记细胞。体内应用后BMSCs能够在海藻酸盐支架上分泌白蛋白,合成糖原。实验组大鼠的生存率及肝功能改善情况优于对照组。结论: 海藻酸盐支架-BMSCs复合物在急性肝衰竭大鼠体内能够起到部分肝功能支持的作用。

In vivo use of alginate scaffold with bone marrow mesenchymal stem cells in acute hepatic failure rats

AIM: To evaluate the use of alginate scaffold with bone marrow mesenchymal stem cells(BMSCs) in a rat acute hepatic failure model.METHODS: BMSCs were labeled with chloro-methylbenzamido dialkylcarbocyanine(CM-DiI),cultured in alginate scaffold and transplanted into the liver of acute hepatic failure rats with 70% liver resection.Four weeks later,the scaffold-cell complexes were taken out,and their abilities to secret albumin(ALB) and store glycogen were examined.The survival rate and liver functions of the ...