摘要
目的观察携带有人β神经生长因子(β-NGF)重组质粒的骨髓基质干细胞(BMSC)的生物学特性。方法培养小鼠BMSC,采用脂质体LipofectamineTM2000(Lip2000)转染方法将含有人β-NGF基因的重组质粒转染至含有绿色荧光蛋白(GFP)基因的小鼠BMSC中,利用酶联免疫吸附测定(ELISA)的方法检测其β-NGF蛋白的表达水平。结果采用脂质体Lip2000转染方法能成功地将β-NGF重组质粒转染至BMSC,转染后细胞出现β-NGF基因的表达,并且其表达的β-NGF蛋白能有效地保护转染过程中对细胞的损害。结论经转染后携带β-NGF基因质粒的小鼠BMSC仍有增殖、分化能力,并且具有了β-NGF蛋白的表达能力。
Objective To investigate the biological features of the mouse bone marrow stromal stem cells （BMSCs） transfected by humanβnerve growth factor（β-NGF） .Methods BMSCs of GFP transgenic mouse were isolated and cultured .Theβ-NGF re-combinant plasmid vectors were transferred into the cultured BMSCs by LipofectamineTM 2000 .The expression of β-NGF was detec-ted with ELISA .Results The β-NGF recombinant plasmid vectors were successfully transferred into BMSCs of GFP transgenic mouse ,the expression of β-NGF in transfected cells appeared .In addition ,the expression ofβ-NGF could effectively protect the BM-SCs which were injured in transfection process .Conclusion BMSCs of GFP transgenic mouse after transfecton with human β-NGF have the proliferation and differentiation capacity ,and possess the expression ability of β-NGF protein .
出处
《重庆医学》
CAS
CSCD
北大核心
2014年第10期1161-1163,1167,共4页
Chongqing medicine
基金
国家自然科学基金资助项目(81060083)
广西科技厅技术研究与开发项目(桂科攻10124001B-56)
