中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (28): 4544-4548.doi: 10.3969/j.issn.2095-4344.2015.28.021

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

静脉注射骨髓间充质干细胞条件培养基治疗脑缺血再灌注损伤

陈 峰1,刘 斌1,明圆圆1,周苏芹1,沈 霞1,花 放1,崔桂云1,岳炫烨1,昝 坤1,叶新春2   

  1. 1徐州医学院,江苏省徐州市  221002;
    2徐州医学院附属医院神经内科,江苏省徐州市  221002
  • 出版日期:2015-07-02 发布日期:2015-07-02
  • 通讯作者: 叶新春,副主任医师,徐州医学院附属医院神经内科,江苏省徐州市 221002
  • 作者简介:陈峰,男,1986年生,江苏省徐州市人,汉族,徐州医学院在读硕士,主要从事脑血管病的基础与临床研究。
  • 基金资助:

    国家自然科学基金青年项目(81201025);江苏省自然科学基金面上项目(BK20131118);江苏省六大高峰人才项目(WSN-081)资助

     

Conditioned medium of bone marrow mesenchymal stem cells via intravenous injection to treat cerebral ischemia-reperfusion injury

Chen Feng1, Liu Bin1, Ming Yuan-yuan1, Zhou Su-qin1, Shen Xia1, Hua Fang1, Cui Gui-yun1, Yue Xuan-ye1, Zan Kun1, Ye Xin-chun   

  1. 1Xuzhou Medical College, Xuzhou 221002, Jiangsu Province, China; 
    2Department of Neurology, Affiliated Hospital of Xuzhou Medical College, Xuzhou 221002, Jiangsu Province, China
  • Online:2015-07-02 Published:2015-07-02
  • Contact: Ye Xin-chun, Associate chief physician, Department of Neurology, Affiliated Hospital of Xuzhou Medical College, Xuzhou 221002, Jiangsu Province, China
  • About author:Chen Feng, Studying for master’s degree, Xuzhou Medical College, Xuzhou 221002, Jiangsu Province, China
  • Supported by:

    the Youth Program of National Natural Science Foundation of China, No. 81201025; the Natural Science Foundation of Jiangsu Province, No. BK20131118; Six Peak Talent Projects of Jiangsu Province, No. WSN-081

摘要:

背景:研究证实骨髓间充质干细胞对于脑缺血再灌注损伤有积极的治疗作用,但是经尾静脉给予骨髓间充质干细胞条件培养基的研究报道较少。

目的:观察经尾静脉注射骨髓间充质干细胞条件培养基对大鼠脑缺血再灌注损伤后神经功能恢复的影响。
方法:体外分离培养大鼠骨髓间充质干细胞,第2、3代骨髓间充质干细胞培养融合达90%时弃培养基,DMEM培养基无血清培养18 h,收集的培养液即为骨髓间充质干细胞条件培养基。将36只右侧大脑中动脉缺血再灌注模型大鼠随机分为3组:对照组,单纯培养基对照组和条件培养基组,分别于术后2,24,48 h经尾静脉给予生理盐水、DMEM培养基、条件培养基(10 mL/kg)。

结果与结论:术后2 h各组大鼠神经功能缺损评分差异无显著性意义(P > 0.05)。术后第1,3,5天对照组与单纯培养基组大鼠神经功能缺损评分差异无显著性意义,条件培养基组大鼠神经功能评分明显低于对照组和单纯培养基组,差异有显著性意义(P < 0.05)。术后5 d条件培养基组较对照组、单纯培养基组脑组织含水量显著减少(P < 0.05),对照组和单纯培养基组相比差异无显著性意义(P > 0.05)。结果说明尾静脉注射骨髓间充质干细胞条件培养基可以减轻大鼠脑缺血再灌注损伤后脑水肿程度,改善神经功能。

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, 骨髓间充质干细胞, 条件培养基, 经尾静脉, 缺血再灌注, 脑水肿, 神经保护, 大脑中动脉, 国家自然科学基金

Abstract:

BACKGROUND: Large numbers of experimental data have confirmed that bone marrow mesenchymal stem cells have a positive therapeutic effect on cerebral ischemia-reperfusion injury, but there are few reports about intravenous administration of bone marrow mesenchymal stem cell conditioned medium in the treatment of stroke.
OBJECTIVE: To investigate the effects of the conditioned medium of rat bone marrow mesenchymal stem cells on the recovery of neurological function in rats after cerebral ischemia-reperfusion injury.
METHODS: The bone marrow mesenchymal stem cells were isolated from rat bone marrow. When cells at passage 2 or 3 reached 90% confluence, the original culture medium was removed. Then the cells were cultured in serum-free DMEM for 18 hours. After that, the culture solution was collected as the conditioned medium of rat bone marrow mesenchymal stem cells. Adult rats were subjected to 2 hours of right middle cerebral artery 
occlusion. Ischemia-reperfusion injury rats were randomly assigned to three groups: control group, simple culture medium group and conditioned medium group, and respectively given injection of normal saline, DMEM, conditioned medium (10 mL/kg) via the tail vein at 2, 24, 48 hours after operation.
RESULTS AND CONCLUSION: There was no difference in the behavioral tests among the three groups at postoperative 2 hours (P > 0.05). Compared with the control and simple culture medium group, neurological impairment was significantly improved in the conditioned medium group at postoperative 1, 3, 5 days (P < 0.05), but there was no significant difference between the control and simple culture medium groups. At postoperative 5 days, brain edema was significantly eased in the conditioned medium group in comparison to the control and simple culture medium groups (P < 0.05), and there was also no difference between the latter two groups (P > 0.05). These results suggest that rat bone marrow mesenchymal stem cells-conditioned medium via intravenous administration can significantly ease brain edema and improve the neurologic function after cerebral ischemia-reperfusion 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

Key words: Culture Media, Conditioned, Infarction, Middle Cerebral Artery, Reperfusion Injury, Brain Edema

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