Experimental study of repairing acute spinal cord injury with transplantation of mesenchymal stem cells genetically modified by NGF in rats
- VernacularTitle:神经生长因子基因转染间充质干细胞移植对损伤脊髓保护的实验研究
- Author:
Yongyan SHI
;
Aixi YU
;
Gongli ZHANG
;
Xiaotao WANG
;
Zhu ZHAO
- Publication Type:Journal Article
- Keywords:
Bone marrow stem cells (BMSCs);
NGF;
Transplantation;
Spinal cord injury
- From:
Chinese Journal of Microsurgery
2008;31(3):199-202,封3
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate mesenchymal stem cells genetically modified by nerve growth factor to repair acute spinal cord injury in rats. Methods Fifty six Wistar rats of inbred strain were randomly divided into sham operation group cell transplantation group and simple injury group. The spinal cord injury model was prepared according to the modified Allen's method. NGFβ (hNGFβ) and GFP genes were transfected into MSCs by replication-deficient recombinant adenovirus vector (Ad-hNGFβ) and replication-deficient recombinant retrovirus vector (Rt-GFP) respectively. GFP positive MSCs were transplanted into intradural space of injured spinal cord at 7 days after spina coral injury. Spinal cord was dissected at 24 h, 1 and 2 weeks after transplantation. To observe the expression of GFAP and nestin and the distribution of MSCs after transplantation following the spina corol injury. Results MSCs migrated to the injured parenchyma In transplantation group, the expression of GFAP and NGF protein was higher than in the control group (P<0.05), the BBB score in transplantation group was higher than that in the control group (P<0.05). Conclusion The MSCs transplantation repaired the injured spinal cord to some extent.
