中国组织工程研究Issue(19)：3100-3104,5.DOI:10.3969/j.issn.2095-4344
神经生长因子重组反转录病毒载体在神经干细胞中的表达
Expression of recombinant retroviral vector carrying nerve growth factor gene in neural stem cells
摘要
Abstract
BACKGROUND:Nerve growth factor (NGF) belongs to a biological macromolecule that is difficult to pass through the blood-brain barrier. However, a retroviral vector carrying exogenous gene can be stably inserted and integrated into the host cellgenome, which is suitable for gene therapy. <br> OBJECTIVE:To study the gene expression of recombinant retroviral vector carrying rat NGF gene in neural stem cels. <br> METHODS: The rat NGF gene was inserted into a retroviral vector pLEGFP-N1, which was transferred into packaging cels PT67 by Lipofectamine 2000. The positive clones in virus supernatant were colected by G418 selection and used to infect neural stem cels. After that, the NGF expression was tested by enzyme linked immunosorbent assay and the biological competence by PC12 cels, and then morphological change of neural stem cels and celltyping were examined by fluorescent microscope. <br> RESULTS AND CONCLUSION:The neural stem cels could express extrinsic source NGF protein after the recombinant plasmid was infected into neural stem cels. The PC12 cels increased in the experimental group and stretched out long neurites. And the NGF protein could maintain the neural stem cellsurvival and stimulate their differentiation. These findings suggest that the neural stem cels carrying extrinsic source NGF gene could express NGF successfuly, and the NGF protein induced the survival and differentiation of neural stem cels.关键词
干细胞/神经干细胞/神经生长因子/反转录病毒载体/PC12细胞/基因重组/大鼠/广东省自然科学基金Key words
nerve growth factor/neural stem cels/PC12 cels/retroviridae/rats, Sprague-Dawley分类
医药卫生引用本文复制引用
何峻峰,顾国妹,龙大宏..神经生长因子重组反转录病毒载体在神经干细胞中的表达[J].中国组织工程研究,2014,(19):3100-3104,5.基金项目
广东省自然科学基金(04009566)；广东省医学科研基金(A2003276)；广州市科技计划项目(041011) （04009566）
