生物技术通报 ›› 2015, Vol. 31 ›› Issue (7): 26-32.doi: 10.13560/j.cnki.biotech.bull.1985.2015.07.037

• 综述与专论 • 上一篇    下一篇

体细胞直接重编程为神经元和神经干细胞

周桢宁   

  1. (中国科学院神经科学研究所,上海 200031)
  • 收稿日期:2015-01-23 出版日期:2015-07-16 发布日期:2015-07-16
  • 作者简介:周桢宁,女,硕士研究生,研究方向:多能干细胞诱导分化;E-mail:zhouatp@163.com

Direct Reprogramming of Somatic Cells into Neurons and Neural Stem Cells

Zhou Zhenning   

  1. (Institute for Neuroscience,Chinese Academy of Sciences,Shanghai 200031)
  • Received:2015-01-23 Published:2015-07-16 Online:2015-07-16

摘要: 体细胞直接重编程是由已分化细胞类型不经过诱导型多能干细胞(Induced pluripotent stem cells,iPSCs)中间阶段,直接转换为另一种细胞类型的重编程过程。体细胞直接重编程避免了iPSC技术存在的重编程效率低下、引入致癌基因等多种缺陷,并为细胞替换治疗和个性化医药研发设想贡献了新的实现途径。现代医学对于诸如神经退行性疾病、神经遗传疾病和外伤导致的神经细胞受损等一些神经系统疾病一直没有有效的治疗手段。而体细胞直接重编程为治疗这些疾病提供了另一种治疗途径,因此体细胞直接重编程为神经细胞相关领域迅速成为研究热点。回顾了体细胞重编程为诱导型神经元(Induced neurons,iNs)和诱导型神经干细胞(Induced neural stem cells,iNSCs)的最新研究进展,并探讨iNs和iNSCs在临床应用上的各自优势、局限性及应用前景。

关键词: 诱导型神经元, 诱导型神经干细胞, 成纤维细胞, 直接重编程, 诱导转分化

Abstract: The direct reprogramming of somatic cells is a process that one differentiated cell type can be directly converted into another kind of differentiated cell type,which bypasses the phase of induced pluripotent stem cells(iPSCs). Compared with the iPSC technology,the direct reprogramming of somatic cells has higher efficiency of reprogramming,and avoids introducing oncogenes.Modern medicine has no effective treatment for nerve cell damage which due to neurodegenerative diseases,neurological genetic diseases and traumatism. Somatic cells directly reprogramming into neural cells may provide another way to treat these diseases. Recently,several studies have shown that the ectopic expression of specific neural and pluripotent stem cell transcription factors can directly convert differentiated cells into induced neurons(iNs)and induced neural stem cells(iNSCs). Here,we will review the most recent progress in the somatic cells directly reprogramming into iNs and iNSCs and also discuss the application of iNs and iNSCs in future.

Key words: induced neurons, induced neural stem cells, fibroblasts, direct reprogramming, induced transdifferentiation