Tianjin Medical Journal

Tianjin Medical Journal ›› 2017, Vol. 45 ›› Issue (1): 21-24.doi: 10.11958/1089

• Experimental Study • Previous Articles     Next Articles

Study of dopamine-producing cells derived from human umbilical cord mesenchymal stem cells in treatment in rats with Parkinson’ s disease

XIE Jiang1,2, WANG Bin1, DONG Fang1, ZHANG Hong-wei1, ZHANG Li-wei1, BAI Gang2△, LIU Yong-jun1△   

  1. 1 Alliancells Key Institute of Stem Cells and Translational Regenerative Medicine, Tianjin Allian Stem Cell Biotech Co., Ltd., Post-Doctoral Research Station, Tianjin 300304, China; 2 College of Pharmacy, Nankai University, Nankai University Post-Doctoral Programme
  • Received:2016-10-09 Revised:2016-11-21 Published:2017-01-15 Online:2017-01-15

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Abstract: Abstract: Objective To investigate the efficacy of dopamine producing cells (DPCs) derived from human umbilical cord- derived mesenchymal stem cells (hUC- MSCs) in treatment in model rats with Parkinson’ s disease (PD). Methods The cultured hUC-MSCs were induced into DPCs in vitro. The dopamine (DA) and glial cell line-derived neurotrophic factor (GDNF) expression levels were detected by ELISA to identify the DPCs. The PD rat model was established by injecting 6- OHDA into the right substantia nigra (SN). A total of 60 successfulled PD model rats were randomized into hUC-MSCsDPCs group (5×105 hUC-MSCs-DPCs were transplanted into right striatum, n=20), hUC-MSCs group (5×105 hUC-MSCs were transplanted, n=20) and control group (same volume PBS, n=20). All the transplanted cells were labeled with CM-Dil. The apomorphine induced rotation behavior was assessed at 4, 8 and 12 weeks after cell transplantation. The rats were executed after 12 weeks. The immunofluorescence staining was used to detect the tyrosine hydroxylase (TH) expression level, and FLUORO-JADE® C staining was used to test the apoptotic neurons in brain of rats. Results The hUC-MSCs-DPCs were induced successfully in vitro, which showed a high expression level of DA and GDNF. Furthermore, at 4, 8 and 12 weeks after cell transplantation, the rotation behavior was improved, and expression levels of GDNF were significantly higher in hUC-MSCs-DPCs group than those of hUC-MSCs group and control group (P＜0.05). In addition, we found that most of the transplanted TH + hUC-MSCs-DPCs at the right striatum and a few cells around both the left and the right substantia nigra at 12 weeks after transplantation. The apoptotic neurons were decreased after cell transplantation in hUC-MSCs-DPCs group than that of control group (P＜0.05). Conclusion The hUC- MSCs- DPCs can improve the rotational behavior induced by apomorphine in PD model rats, which may be involved in improving levels of DA and GDNF in damaged striatum and protecting neurons.

Key words: mesenchymal stem cells, cord blood stem cell transplantation, Parkinson’s disease, dopamine, striatonigral degeneration, rats, Sprague-Dawley, Glial cell line-derived neurotrophic factor