干细胞 ,是指能产生多种其它类型细胞的细胞。而神经干细胞这一术语 ,通常广泛地用来描述具有如下特性的一群细胞 :(1)能够生成神经组织或来源于神经组织 ;(2 )具有自我更新的能力 ;(3)可通过不对称分裂产生除它们本身之外的其它的细胞类型[1] 。从严格意义上讲 ,它具有自我更 Stem cells are cells that produce many other types of cells. The term neural stem cell is generally used broadly to describe a group of cells that have the following properties: (1) Ability to generate neural tissue or neural tissue; (2) Ability to self-renew; (3) Produce other cell types than themselves [1]. In a strict sense, it has self-reliance