AAS ›› 2015, Vol. 46 ›› Issue (6): 742-749.doi: 10.16098/j.issn.0529-1356.2015.06.004

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Lentiviral vector mediated Nurrl gene-modified mesenchymal stem cells for the treatment of Parkinson’s disease rat model

WANG Xiao-xiao1 FU Wen-yu 1* ZHUANG Wen-xin 2 LI Feng-jie2 WANG Qian3 LIU Jin-cheng3   

  1. 1. Department of Histology and Embryology; 2.Medical Research Center; 3.Provincial Key Laboratory of Human Anatomy and Histology and Embryology, Weifang Medical University, Shandong Weifang 261053, China
  • Received:2015-03-23 Revised:2015-05-18 Online:2015-12-06 Published:2015-12-06
  • Contact: FU Wen-yu E-mail:fuwy@wfmc.edu.cn

Abstract:

Objective To investigate the therapeutic effects of bone marrow mesenchymal stem cells (BMSCs) modified by nuclear receptor-related factor 1 (Nurrl) gene transplanted into the striatum of Parkinson’s disease rat model. Methods Eighteen rat models of Parkinson’s disease (PD) were successfully induced by 6-hydroxydopamine (6-OHDA) injection into the right striatum. BMSCs infected by GV287-Nurr1 lentivirus carrying green fluorescence were transplanted into the striatum of six PD rats (the experiment group). Randomly set up six PD rats as saline group (the sham-grafted group) and six PD rats as negative lentivirus GV287 infection of BMSCs group (the control group). After 1, 2 and 4 weeks, the behavioral change of the rats was induced by apomorphine (APO). The expression change of Nurrl and TH in the striatum and substantia nigra were examined by immunohistochemical staining, and the expression change of Nurrl mRNA and TH mRNA in the striatum and substantia nigra were detected by RT-PCR. Results The Nurr1 protein was detected in BMSCs and its supernatant after infected by lentivirus GV287-Nurr1. After transplantation 1, 2 and 4 weeks compared to the sham-grafted group the rat rotational behavior of the control group and the experiment group were improved, and that of the experiment group improved more obvious. The implanted Nurr1-positive cells survived and migrated to the cortex and the contralateral brain tissue along the corpus callosum. Compared with the sham-grafted group and the control group, the expression of Nurrl and TH at protein and mRNA levels of the lesion side of the striatum and substantia nigra after transplantation in experiment group were increased significantly. Conclusion Lentiviral vector mediated Nurrl gene-modified BMSCs can effectively improve the symptoms of PD rats and increase the expression of Nurrl and TH in striatum and substantia nigra of Parkinson’s disease rat model.

Key words: Bone marrow mesenchymal stem cell, Lentivirus, Nuclear receptor-related factor 1, Tyrosine hydroxylase, Parkinson’s disease, Immunohistochemistry, Rat