人早孕绒毛细胞滋养层细胞培养方法的改良

Isolation and culture of first trimester human trophoblast cell

目的探索一种简便高纯度的早孕滋养细胞的体外培养方法。方法采用完整早孕绒毛通过胰蛋白酶联合胶原酶消化法分离,Percoll梯度分离法提纯体外培养,应用光镜HE染色和免疫细胞化学法检测细胞纯度。结果 CK-7表达阳性细胞数可以达到90%以上。结论完整绒毛消化和Percoll纯化联合可在短期内获得高纯度、高产量的滋养细胞以供后期试验,方法更加简便。

Objective To research a simple method for purification of first trimester human trophoblast cell in vitro. Methods Whole first trimester human chorionic tissues were isolated with trypsin/collagenase. HE staining and immunocytoehemistry methods were used to detect the tyophoblast cells purity. Results Cytokeratin-7 positive cells were more than 90%. Conclusion First trimester human Trophoblast cells can be obtained through the simple method and may offer enough cells for later experiments.