中国神经再生研究(英文版) ›› 2017, Vol. 12 ›› Issue (1): 118-124.doi: 10.4103/1673-5374.198997

• 原著:神经损伤修复保护与再生 • 上一篇    下一篇

受体相互作用蛋白140表达与人胚胎干细胞向神经干细胞定向分化的相关性

  

  • 收稿日期:2016-12-10 出版日期:2017-01-15 发布日期:2017-01-15
  • 基金资助:

    国家自然科学基金(31340024

Correlation between receptor-interacting protein 140 expression and directed differentiation of human embryonic stem cells into neural stem cells

Zhu-ran Zhao1, Wei-dong Yu2, Cheng Shi3, Rong Liang3, Xi Chen3, Xiao Feng4, Xue Zhang1, Qing Mu1, Huan Shen3, Jing-zhu Guo1   

  1. 1 Department of Pediatrics, Peking University People’s Hospital, Beijing, China; 
    2 Institute of Clinical Molecular Biology, Peking University People’s Hospital, Beijing, China; 
    3 Department of Obstetrics and Gynecology, Peking University People’s Hospital, Beijing, China; 
    4 Department of Pediatrics, Peking University International Hospital, Beijing, China
  • Received:2016-12-10 Online:2017-01-15 Published:2017-01-15
  • Contact: Jing-zhu Guo, Ph.D., gjzhxx@sina.com.cn.
  • Supported by:

    This study was supported by the National Natural Science Foundation of China, No. 31340024.

摘要:

 

以往研究已证实,受体相互作用蛋白140过表达通过ERK1/2信号通路可促进N2a神经元的分化。然而,RIP140是否参与人类神经元分化尚无公识。实验发现受体相互作用蛋白140ERK1/2的表达在人胚胎干细胞向神经干细胞定向分化过程中均有上调,且RIP140表达在神经分化早期与干细胞标志物Oct4, Sox2表达呈负相关,而在神经分化晚期与神经干细胞标志物Nestin表达呈正相关。由此说明,受体相互作用蛋白140参与人胚胎干细胞向神经干细胞的定向分化过程,且该过程受ERK1/2信号通路的调节。

ORCID:0000-0003-1720-8927(Jing-zhu Guo)

Abstract:

Overexpression of receptor-interacting protein 140 (RIP140) promotes neuronal differentiation of N2a cells via extracellular regulated kinase 1/2 (ERK1/2) signaling. However, involvement of RIP140 in human neural differentiation remains unclear. We found both RIP140 and ERK1/2 expression increased during neural differentiation of H1 human embryonic stem cells. Moreover, RIP140 negatively correlated with stem cell markers Oct4 and Sox2 during early stages of neural differentiation, and positively correlated with the neural stem cell marker Nestin during later stages. Thus, ERK1/2 signaling may provide the underlying molecular mechanism by which RIP140 takes part in neural differentiation to eventually affect the number of neurons produced.

Key words: nerve regeneration, receptor-interacting protein 140, neural stem cells, human embryonic stem cells, directed differentiation, Oct4, Sox2, Nestin, extracellular regulated kinase 1/2 signaling pathway, neural regeneration