中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (23): 3729-3735.doi: 10.3969/j.issn.2095-4344.2015.23.021

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

脐带沃顿胶干细胞移植对脊髓损伤大鼠炎症因子表达的影响

马珊珊1,渠瑞娜1,田  毅2,姚  宁1,崔渊博1,韩  康1,邢  衢1,杨  波2,关方霞1,2   

  1. 1郑州大学生命科学学院,河南省郑州市  450001; 
    2郑州大学第一附属医院神经外科,河南省郑州市  450052
  • 出版日期:2015-06-04 发布日期:2015-06-04
  • 通讯作者: 关方霞,教授,博士生导师,郑州大学生命科学学院,河南省郑州市 450001;郑州大学第一附属医院神经外科,河南省郑州市 450052
  • 作者简介:马珊珊,女,1984年生,河南省开封市人,汉族,2011年浙江大学毕业,博士,副教授,主要从事干细胞和再生医学的研究。
  • 基金资助:

    国家自然科学基金资助项目(81171177;U1404313);河南省高校科技创新团队(15IRTSTHN022)

Effects of umbilical cord Wharton’s jelly mesenchymal stem cell transplantation on the expression of inflammatory factors in rats with spinal cord injury 

Ma Shan-shan1, Qu Rui-na1, Tian Yi2, Yao Ning1, Cui Yuan-bo1, Han Kang1, Xing Qu1, Yang Bo2, Guan Fang-xia1, 2   

  1. 1School of Life Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China; 
    2Department of Neurosurgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
  • Online:2015-06-04 Published:2015-06-04
  • Contact: Guan Fang-xia, Professor, Doctoral supervisor, School of Life Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China; Department of Neurosurgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
  • About author:Ma Shan-shan, M.D., Associate professor, School of Life Sciences, Zhengzhou University, Zhengzhou 450001, Henan Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81171177; U1404313; a grant from Science & Technology Innovation Foundation for Higher Education Institutes of Henan Province of China, No. 15IRTSTHN022

摘要:

背景:免疫炎症反应促使大量炎症因子的产生和释放是继发性脊髓损伤的其对主要原因。
目的:探讨脐带沃顿胶干细胞移植对急性脊髓损伤大鼠的神经修复作用及其对炎症因子单核细胞趋化蛋白1和白细胞介素10表达的影响。
方法:81只健康成年雄性SD大鼠,随机分为假手术组、模型组和脐带沃顿胶干细胞移植组(n=27),后两组以脊髓半切方法建立急性脊髓损伤模型,造模后脐带沃顿胶干细胞移植组经尾静脉移植1×106个脐带沃顿胶干细胞。移植后不同时间通过BBB评分评价各组大鼠的运动功能;ELISA检测不同时间点各组大鼠血清中单核细胞趋化蛋白1的含量;qRT-PCR和Western分析不同时间点损伤脊髓组织中单核细胞趋化蛋白1及白细胞介素10的表达;免疫组织化学检测损伤组织中脐带沃顿胶干细胞的迁移和神经分化情况。
结果与结论:与假手术组和模型组相比,脐带沃顿胶干细胞移植组大鼠的神经功能明显恢复(P < 0.05)。脐带沃顿胶干细胞移植组大鼠血清中单核细胞趋化蛋白1水平显著低于模型组(P < 0.05)。脐带沃顿胶干细胞移植组脊髓组织单核细胞趋化蛋白1 mRNA和蛋白表达显著低于模型组(P < 0.05),白细胞介素10 mRNA和蛋白表达显著高于模型组(P < 0.05)。移植组中脐带沃顿胶干细胞可迁移至损伤部位,并表达神经胶质纤维酸性蛋白。这些结果提示脐带沃顿胶干细胞可能通过调控脊髓损伤组织的炎症反应,促进神经修复,这也可能是脐带沃顿胶干细胞治疗脊髓损伤的机制之一。

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

关键词: 干细胞, 移植, 脊髓损伤, 沃顿胶干细胞, 移植, 神经修复, 单核细胞趋化蛋白1, 白细胞介素10, 国家自然科学基金

Abstract:

BACKGROUND: The production and release of a large amount of inflammatory factors caused by immune system inflammatory response mainly contributes to secondary spinal cord injury.
OBJECTIVE: To investigate the effects of umbilical cord Wharton’s jelly mesenchymal stem cell transplantation on repair of injured neurological function and expression of inflammatory factors monocyte chemoattractant protein 1 and interleukin 10 in rats with acute spinal cord injury.
METHODS: Eighty-one healthy adult male Sprague-Dawley rats were randomly and equally divided into sham operation, model and cell transplantation groups, with 27 rats per group. Rats in the latter two groups were subjected to hemisection of the spinal cord to establish acute spinal cord injury models. Rat models in the cell 
transplantation group received umbilical cord Wharton’s jelly mesenchymal stem cell injection (1×106) via the tail vein. Rat neurological function was evaluated using the BBB score at different time points after spinal cord injury. The expression of monocyte chemoattractant protein 1 and interleukin 10 in injured spinal cord tissue was detected using ELISA assay at different time points after spinal cord injury. Migration and neuronal differentiation of umbilical cord Wharton’s jelly mesenchymal stem cells in the injured spinal cord tissue were determined using immunohistochemical staining method.
RESULTS AND CONCLUSION: Compared with the sham operation and model groups, rat neurological function was significantly recovered in the cell transplantation group (P < 0.05). Compared to the model group, monocyte chemoattractant protein 1 level in the serum and monocyte chemoattractant protein 1 mRNA and protein expression in the injured spinal cord tissue were significantly lower (P < 0.05), but interleukin 10 mRNA and protein expression in the injured spinal cord tissue was significantly higher (P < 0.05), in the cell transplantation group. In the cell transplantation group, umbilical cord Wharton’s jelly mesenchymal stem cells could migrate to the injured region and express glial fibrillary acidic protein. These findings suggest that umbilical cord Wharton’s jelly mesenchymal stem cells promote rat neurological function recovery by regulating the inflammatory response in the injured spinal cord tissue, which is likely to be one of mechanisms by which transplantation of umbilical cord Wharton’s jelly mesenchymal stem cells treats spinal cord injury.

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

中图分类号: