Neural Regeneration Research ›› 2013, Vol. 8 ›› Issue (5): 427-434.doi: 10.3969/j.issn.1673-5374.2013.05.006

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An effective inducer of dopaminergic neuron-like differentiation

Wenyu Fu1, Cui Lv2, Wenxin Zhuang1, Dandan Chen1, E Lv1, Fengjie Li1, Xiaocui Wang1   

  1. 1 Department of Histology and Embryology, Weifang Medical University, Weifang 261053, Shandong Province, China
    2 Stem Cell Research and Transplantation Center, Affiliated Hospital of Weifang Medical University, Weifang 261031, Shandong Province, China
  • Received:2012-09-12 Revised:2013-01-30 Online:2013-02-15 Published:2013-02-15
  • Contact: Wenyu Fu, Department of Histology and Embryology, Weifang Medical University, Weifang 261053, Shandong Province, China, wenyufu@hotmail.com
  • About author:Wenyu Fu☆, M.D., Professor.
  • Supported by:

    This study was supported by the Scientific Research Foundation for the Returned Overseas, No. [2009]1001; the Natural Science Foundation of Shandong Province, No. Y2008C129.

Abstract:

Rat bone marrow-derived mesenchymal stem cells were cultured and passaged in vitro. After induction with basic fibroblast growth factor for 24 hours, passage 3 bone marrow-derived mesenchymal stem cells were additionally induced into dopaminergic neurons using three different combinations with basic fibroblast growth factor as follows: 20% Xiangdan injection; all-trans retinoic acid + glial-derived neurotrophic factor; or sonic hedgehog + fibroblast growth factor 8. Results suggest that the bone marrow-derived mesenchymal stem cells showed typical neuronal morphological characteristics after induction. In particular, after treatment with sonic hedgehog + fibroblast growth factor 8, the expressions of nestin, neuron-specific enolase, microtubule- associated protein 2, tyrosine hydroxylase and vesicular monoamine transporter-2 in cells were significantly increased. Moreover, the levels of catecholamines in the culture supernatant were significantly increased. These findings indicate that Xiangdan injection, all-trans retinoic acid + glial-derived neurotrophic factor, and sonic hedgehog + fibroblast growth factor 8 can all induce dopaminergic neuronal differentiation from bone marrow-derived mesenchymal stem cells. In particular, the efficiency of sonic hedgehog + fibroblast growth factor 8 was highest.

Key words: neural regeneration, stem cells, mesenchymal stem cells, dopaminergic neuron, induction, differentiation, Xiangdan injection, all-trans retinoic acid, sonic hedgehog, fibroblast growth factor 8, catecholamine, grants-supported paper, photographs-containing paper, neuroregeneration