中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (19): 3467-3473.doi: 10.3969/j.issn.2095-4344.2013.19.008

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

骨髓间充质干细胞移植联合依达拉奉治疗大鼠脑梗死

孙晶晶1,张 鹏2,周国庆2   

  1. 1唐山市协和医院神经内一科,河北省唐山市  063000
    2河北省徐水物探局职工中心医院内二科,河北省保定市  072550
  • 收稿日期:2012-09-10 修回日期:2013-03-29 出版日期:2013-05-07 发布日期:2013-05-07
  • 作者简介:孙晶晶★,女,1979年生,河北省唐山市人,汉族,2011年华北煤炭医学院毕业,硕士,主治医师,主要从事神经内科方面的研究。 tsxh5110@163.com

Bone marrow mesencyhmal stem cell transplantation combined with edaravone for the treatment of cerebral infarction in rats

Sun Jing-jing1, Zhang Peng2, Zhou Guo-qing2   

  1. 1 First Department of Neurology, Tangshan Union Hospital, Tangshan  063000, Hebei Province, China
    2 Second Department of Cardiology, Oil Geophysical Prospecting Bureau of Trade Unions Central Hospital, Baoding  072550, Hebei Province, China
  • Received:2012-09-10 Revised:2013-03-29 Online:2013-05-07 Published:2013-05-07
  • About author:Sun Jing-jing★, Master, Attending physician, First Department of Neurology, Tangshan Union Hospital, Tangshan 063000, Hebei Province, China tsxh5110@163.com

摘要:

背景:依达拉奉具有清除自由基和抑制脂质过氧化反应的作用,能够改善中枢神经系统损伤区的微环境。
目的:观察骨髓间充质干细胞移植联合依达拉奉治疗大鼠脑梗死的效果。
方法:采用线栓法建立大鼠大脑中动脉阻塞模型,随机分为3组,对照组经尾静脉注射细胞培养液,骨髓间充质干细胞组经尾静脉注射2.0×109 L-1的骨髓间充质干细胞悬液,依达拉奉+骨髓间充质干细胞组经尾静脉注射2.0×109 L-1骨髓间充质干细胞悬液同时经腹腔注射依达拉奉3 mg/(kg•d),连续5 d。移植后行神经功能缺损评分,应用RT-PCR测定脑梗死组织水通道蛋白9及水通道蛋白4 mRNA的表达,并经全脑冷冻切片苏木精-伊红染色及荧光显微镜观察细胞自然存活及分布情况。
结果与结论:移植后24 h,3 d各组间神经功能缺损评分差异无显著性意义(P > 0.05),移植后2周,依达拉奉+骨髓间充质干细胞组大鼠神经功能缺损评分低于骨髓间充质干细胞组及对照组(P < 0.05-0.01)。骨髓间充质干细胞组大鼠脑梗死周围组织水通道蛋白9 及水通道蛋白4 mRNA的表达高于依达拉奉+骨髓间充质干细胞组,却低于对照组(P < 0.05)。依达拉奉+骨髓间充质干细胞组CM-Dil阳性细胞和神经元数量多于骨髓间充质干细胞组及对照组(P < 0.05)。提示移植的骨髓间充质干细胞可移行至大鼠脑梗死灶周围并存活,分化为神经元样细胞。联合注射用依达拉奉治疗可明显改善脑梗死大鼠的神经学功能。

关键词: 干细胞, 干细胞移植, 依达拉奉, 骨髓间充质干细胞, 细胞移植, 脑梗死, 神经功能障碍评分, 水通道蛋白4, 水通道蛋白9, 干细胞图片文章

Abstract:

BACKGROUND: Edaravone can scavenge free radicals and inhibit lipid peroxidation, which can improve microenvironment injury after central nervous system injury.
OBJECTIVE: To investigate the effect of bone marrow mesenchymal stem cell transplantation combined with edaravone on the treatment of cerebral infarction in rats.
METHODS: The models of cerebral infarction were made by middle cerebral artery occlusion. Model rats were randomly divided into control group, stem cell group (bone marrow mesenchymal stem cell transplantation) and combination group (edaravone+bone marrow mesenchymal stem cell transplantation). The concentration of 2.0×106/mL bone marrow mesenchymal stem cell suspension or the concentration of 1 mL cell culture fluid was injected into the rat models through the caudal vein; at the same time, 3 mg/(kg•d) edaravone aqueous solution or normal saline was injected into the rat models through the abdominal cavity, for 5 days. The neurobehavioral scores were determined after 24 hours, 3 days and 1, 2 weeks after modeling. Aquaporin 9 and aquaporin-4 mRNA expressions were determined by reverse transcription-PCR. The rats were sacrificed for neuron and brain tissue around target morphological analysis by hematoxylin-eosin staining under a light microscopy. 
RESULTS AND CONCLUSION: There was no difference in the neurological deficit scores among the three groups at 24 hour and 3 days after treatment (P > 0.05); while after 2 weeks, the neurological deficit score in the combination group was significantly lower than the stem cell group and control group (P < 0.05-0.01). In the stem cell group, the Aquaporin 9 and aquaporin-4 mRNA expressions were higher than the combination group but lower than the control group (P < 0.05). The number of CM-Dil-positive cells and neurons was higher in the combination group than the stem cell and control groups (P < 0.05). These findings indicate that transplanted bone marrow mesenchymal stem cells can survive and migrate to the peri-infarct region, and differentiate into neuron-like cells. Bone marrow mesencyhmal stem cell transplantation combined with edaravone can significantly improve neurological function of cerebral infarction rats.

Key words: stem cells, stem cell transplantation, edaravone, bone marrow mesenchymal stem cells, cell transplantation, cerebral infarction, neurological deficit score, aquaporin-4, aquaporin 9, stem cell photographs-containing paper

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