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HEREDITAS ›› 2011, Vol. 33 ›› Issue (11): 1231-1238.doi: 10.3724/SP.J.1005.2011.01231

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Generation of mouse parthenogenetic embryonic stem cells and preliminary study of the differentiation ability to motor neurons

WANG Zhen-Dong1,2, XUE Yuan1, SHAN Zhi-Yan1, ZHENG Zhong1, LI Xue1, WU Yan-Shuang1, SUN Rui-Zhen1, SHI Jian1, LI Ming-Jie1, LIU Zhong-Hua2, LEI Lei1   

  1. 1. Department of Histology and Embryology, Harbin Medical University, Harbin 150081, China 2. College of Life Science, Northeast Agricultural University, Harbin 150030, China
  • Received:2011-01-25 Revised:2011-04-09 Online:2011-11-20 Published:2011-11-25
  • Contact: LEI Lei E-mail:leil086@yahoo.com.cn

Abstract: In this study, we generated embryonic stem cells from parthenogenetic embryos (PESCs), and induced them to differentiate to motor neurons, which could be an alternative source of histocompatible cells for replacement of therapy and theoretical foundation for studying the relationship of genome imprint and neural differentiation. The parthenogenetic activation rate of B6D2F1 mouse oocytes was 93.26%. We established eight parthenogenetic embryonic stem cell lines and the establishment rate from parthenogenetic embryos was 23.53%. The pluripotency marker Oct4, the cell surface marker SSEA-1, and alkaline phosphatase exhibited in PESCs. Karyotype analysis showed normal 40 chromosomes when examined at passages 10 and 30, which was in accordance with their oocyte origins. Three germinal layers were differentiated in vivo and in vitro. Mouse PESCs, which were treated by tretinoin and sonic hedgehog with extracellular matrix, could generate motor neurons that expressed the specific markers such as HB9 and Olig2.

Key words: Sonic hedgehog (Shh), motor neurons, differentiation, Tretinoin (RA), parthenogenetic embryonic stem cells, imprinted genes