中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (1): 68-73.doi: 10.3969/j.issn.2095-4344.2013.01.011

• 干细胞移植 stem cell transplantation • 上一篇    下一篇

控释胶质细胞源性神经营养因子与骨髓间充质干细胞源神经元样细胞移植可减少脊髓损伤后空洞形成

刘晓刚1,邓宇斌2,蔡 辉1,王丽宁1,马郁琳1,张新鹏1,魏可心1   

  1. 1 北京市垂杨柳医院病理科,北京市  100022
    2 中山大学中山医学院病理学与病理生理学教研室,广东省广州市  510080
  • 收稿日期:2012-03-05 修回日期:2012-04-13 出版日期:2013-01-01 发布日期:2013-01-01
  • 作者简介:刘晓刚★,男,1978年生,山西省晋中市人,汉族,2005年中山大学毕业,硕士,主治医师,主要从事移植免疫与干细胞应用研究。chinalark@163.com
  • 基金资助:

    北京市垂杨柳医院硕博基金(2010J06)。

Transplantation of controlled release glial cell line-derived neurotrophic factor and bone marrow mesenchymal stem cells-derived neuron-like cells reduces myelosyringosis after spinal cord injury

Liu Xiao-gang1, Deng Yu-bin2, Cai Hui1, Wang Li-ning1, Ma Yu-lin1, Zhang Xin-peng1, Wei Ke-xin1   

  1. 1 Department of Pathology, Chui Yang-liu Hospital of Beijing, Beijing  100022, China
    2 Department of Pathology and Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou  510080, Guangdong Province, China
  • Received:2012-03-05 Revised:2012-04-13 Online:2013-01-01 Published:2013-01-01
  • About author:Liu Xiao-gang★, Master, Attending physician, Department of Pathology, Chui Yang-liu Hospital of Beijing, Beijing 100022, China chinalark@163.com
  • Supported by:

    Supported by: Foundation for Master’s and Doctoral Program of Chui Yang-liu Hospital of Beijing, No. 2010J06

摘要:

背景:前期研究发现控释胶质细胞源性神经营养因子与骨髓间充质干细胞源神经元样细胞移植可以有效地促进猕猴脊髓损伤后运动功能的恢复。
目的:验证控释胶质细胞源性神经营养因子联合骨髓间充质干细胞源神经元样细胞移植对猴脊髓损伤后组织结构的保护作用是否优于单纯细胞移植。
方法:将急性重度脊髓损伤模型恒河猴分为3组,联合移植组采用控释神经营养因子+神经元样细胞联合移植,单纯细胞移植组给予神经元样细胞移植,对照组给予磷酸盐缓冲液。制备脊髓组织石蜡标本,苏木精-伊红染色后显微镜下观察空洞形成情况,并应用图像分析系统计算空洞面积。
结果与结论:对照组脊髓结构严重破坏,空洞面积大、累及范围广;单纯细胞移植组脊髓结构保存较好,有小面积空洞,偶有较大空洞形成;联合移植组脊髓结构保存最好,仅存在小面积空洞。组间两两比较差异有显著意义(P < 0.01)。提示与单纯神经元样细胞移植比较,控释胶质细胞源性神经营养因子联合骨髓间充质干细胞源性神经元样细胞移植对脊髓损伤后组织结构的保护作用更佳,可以在更大程度上减少脊髓空洞的形成可能是其作用机制之一。

关键词: 干细胞, 干细胞移植, 脊髓空洞症, 脊髓损伤, 骨髓间充质干细胞, 神经营养因子, 猕猴, 其他基金, 干细胞图片文章

Abstract:

BACKGROUND: Previous studies have demonstrated that transplantation of controlled release glial cell line-derived neurotrophic factor (GDNF) and bone marrow mesenchymal stem cells-derived neuron-like cells (BMSCs) can effectively promote the motor function recovery of rhesus monkeys with spinal cord injury.
OBJECTIVE: To validate whether GDNF+BMSCs transplantation exhibits better protective effects on spinal cord tissue of rhesus monkeys with spinal cord injury than BMSCs transplantation.
METHODS: Rhesus monkey models of acute severe spinal cord injury were divided into three groups and received GDNF+BMSCs transplantation (GDNF+BMSCs group) or BMSCs transplantation (BMSCs group) or PBS administration (control group). Spinal cord tissue was embedded with paraffin and stained with hematoxylin-eosin. Myelosyringosis was estimated by image analysis system.
RESULTS: In the control group, spinal cord structure was greatly destructed, and myelosyringosis occupied larger area. In the BMSCs group, spinal cord structure was well preserved, and small cavities, occasionally large cavities, were observed. In the GDNF+BMSCs group, spinal cord structure was best preserved and only small cavities were observed. There was significant difference in spinal cord structure destruction between groups (P < 0.01). These findings suggest that compared with simple BMSCs transplantation, transplantation of controlled released GDNF+BMSCs shows better protective effects on spinal tissue structure after spinal cord injury, which may be one of mechanisms by which myelosyringosis is reduced to a greater extent.

Key words: stem cells, stem cell transplantation, myelosyringosis, spinal cord injury, bone marrow-derived mesenchymal stem cells, neurotrophic factor, rhesus monkey, other grants-supported paper, stem cell photographs-containing paper

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