摘要
目的观察不同培养基对人脐带间充质干细胞(hUC-MSCs)生物学特性的影响,优化培养方法。方法采用贴壁法从正常足月胎儿脐带中分离出间充质干细胞,细胞贴壁后利用DMEM/F12,Mesen PRORSTM Medium这两种培养体系进行体外扩增,绘制生长曲线,流式细胞仪检测其表面标志。结果从人脐带中分离出的间充质干细胞为梭形,呈平行排列生长或漩涡状生长;细胞表达CD29、CD44,不表达CD34、CD45和HLA-DR。结论加入Mesen PRORSTM Medium培养的细胞增殖速度快,更适合于脐带间充质干细胞的体外扩增。
Objective To investigate the differences of biological characteristics of human umbilical cord mesenchymal stem cells（hUC-MSCs） in different mediums, and to optimize the purify methods. Methods Mesenchymal stem cells were separated from healthy full-termed delivery fetus using tissue-adherent culture method. These cells were cultured and amplified in DMEM/F12 and Mesen PRORSTM Medium in vitro. The growth curve was drawn.Their surface markers were detected by flow cytometry. Results Mesenchymal stem ceils derived from human umbilical cord were spindle-shaped adherent cells.They have strong proliferation ability. The results of growth curve showed that compared with two medium, hUC-MSCs in Mesen PRORSTM Medium grew quickly at every time point. They were strongly positive expression for CD44 and CD29, but negative expression for CD34, CD45 and HLA-DR. Conclusion Cell doubling time in the Mesen PRORSTM Medium was shorter than in DMEM/F12.
出处
《中国实用医药》
2014年第14期6-8,共3页
China Practical Medicine
关键词
间充质干细胞
脐带
生物学特性
Mesenchymal stem cell
Umbilical cord
Biological charateristics
