中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (36): 5811-5815.doi: 10.3969/j.issn.2095-4344.2015.36.013

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

神经节苷脂联合骨髓间充质干细胞移植治疗颅脑创伤

黄永辉   

  1. 天津市津南区咸水沽医院神经外科,天津市  300040
  • 出版日期:2015-09-03 发布日期:2015-09-03
  • 作者简介:黄永辉,男,1973年生,天津市人,1998年河北医科大学毕业,主治医师,主要从事神经外科方面的研究。

Ganglioside combined with bone marrow mesenchymal stem cells transplantation for treatment of traumatic brain injury 

Huang Yong-hui   

  1. Department of Neurosurgery, Xianshuigu Hospital of Jinnan District, Tianjin 300040, China
  • Online:2015-09-03 Published:2015-09-03
  • About author:Huang Yong-hui, Attending physician, Department of Neurosurgery, Xianshuigu Hospital of Jinnan District, Tianjin 300040, China

摘要:

背景:骨髓间充质干细胞可以在体内外诱导下分泌神经营养因子,还可向神经元方向转化,从而促进创伤脑组织再生修复,但骨髓间充质干细胞又存在生存周期短的问题而影响其发挥对损伤脑组织的保护作用。

目的:观察骨髓间充质干细胞移植联合神经节苷脂治疗大鼠颅脑创伤的效果。

方法:60只Wistar大鼠采用液压颅脑损伤仪制备大鼠重型颅脑创伤模型,建模24 h后按照随机表法随机分为3组:模型组经尾静脉注入1 mL DMEM培养液,移植组经尾静脉注入1 mL(1×1010 L-1)骨髓间充质干细胞悬液,联合组经尾静脉注入1 mL(1×1010 L-1)骨髓间充质干细胞悬液以及经腹腔注射神经节苷脂水溶液(30 mg/kg),1次/d,共3 d。伤后24 h,细胞移植后3 d及1,2,3,4 周依据Longa 5分法进行神经功能行为学评分;移植后3 d应用RT-PCR、Western blot检测创伤脑组织中水通道蛋白4基因和蛋白的表达;移植后1周,行苏木精-伊红染色观察创伤脑组织病理变化。

结果与结论:移植后3 d及1,2,3,4 周,联合组神经行为学功能评分低于移植组(P < 0.05),移植组低于模型组(P < 0.05);移植后3 d,模型组创伤脑周围组织水通道蛋白4蛋白及mRNA的表达高于移植组(P < 0.05),移植组高于联合组(P < 0.05);苏木精-伊红染色观察到联合组脑组织恢复明显优于模型组和移植组(P < 0.05)。结果提示骨髓间充质干细胞移植联合神经节苷脂可以明显改善颅脑创伤大鼠的神经行为学功能。

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, 颅脑创伤, 神经节苷脂, 骨髓间充质干细胞, 大鼠

Abstract:

BACKGROUND: Bone marrow mesenchymal stem cells can secrete neurotrophic factors in vitro, and can also be differentiated into neurons, thereby contributing to the repair of traumatic brain injury. However, the short life cycle of bone marrow mesenchymal stem cells influences their protective effects on the damaged brain tissues.

OBJECTIVE: To observe the effect of bone marrow mesenchymal stem cell transplantation combined with ganglioside in rats with traumatic brain injury.

METHODS: Sixty Wistar rats were used to make severe traumatic brain injury models using a hydraulic head injury instrument, and then randomized into three groups: 1 mL DMEM, 1 mL bone marrow mesenchymal stem cell suspension (1×1010/L), 1 mL bone marrow mesenchymal stem cell suspension (1×1010/L) combined with ganglioside solution (30 mg/kg) were injected respectively in model group, transplantation group and combined group, once a day, totally for 3 days. Neurological behavior scores were observed according to Longa method at 24 hours after modeling and at 3 days, 1, 2, 3, 4 weeks after cell transplantation. At 3 days after cell transplantation, RT-PCR and western blot assay were employed to detect aquaporin 4 mRNA and protein expressions. At 1 week after transplantation, hematoxylin-eosin staining was performed for pathological observation of the damaged brain tissues.

RESULTS AND CONCLUSION: At 3 days, 1, 2, 3, 4 weeks after cell transplantation, the neurological behavior scores were ranked as follows: combined group < transplantation group < model group (P < 0.05). At 3 days after cell transplantation, the mRNA and protein expression of aquaporin 4 was ranked as follows: model group > transplantation group > combined group (P < 0.05). Hematoxylin-eosin staining showed that the recovery of brain tissue was better in the combined group than the model and transplantation groups (P < 0.05). These findings indicate that bone marrow mesenchymal stem cells combined with ganglioside can significantly improve the neurological behavior function of rats with traumatic brain 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

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