中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (29): 4697-4702.doi: 10.3969/j.issn.2095-4344.2017.29.018

• 干细胞培养与分化 stem cell culture and differentiation • 上一篇    下一篇

血管新生对局灶性脑缺血再灌注后脑室下区神经干细胞增殖的影响

李志宁1,韩 卫2,荣良群1,龚爱平1,吕 尤1,单君君1,魏秀娥1   

  1. 徐州医科大学第二附属医院,1神经内科,2检验科,江苏省徐州市 22100
  • 修回日期:2017-05-04 出版日期:2017-10-18 发布日期:2017-11-08
  • 通讯作者: 魏秀娥,博士,主任医师,徐州医科大学第二附属医院神经内科,江苏省徐州市 221006
  • 作者简介:李志宁,男,1984年生,山东省菏泽市人,汉族,2012年徐州医学院毕业,硕士,主治医师,主要从事缺血性脑血管病及神经干细胞的基础与临床研究。
  • 基金资助:

    “步长杯”江苏省神经病学研究基金课题(局灶性脑缺血后脑室下区细胞结构改变及NMDA受体亚单位蛋白质表达变化,2013年);徐州市科技局课题(NMDA受体诱导血管新生调控缺血后神经干细胞的增殖、分化及机制的研究,编号:KC14SH063)

Influence of angiogenesis on neural stem cell proliferation in the subventricular zone after focal cerebral ischemia/reperfusion

Li Zhi-ning1, Han Wei2, Rong Liang-qun1, Gong Ai-ping1, Lv You1, Shan Jun-jun1, Wei Xiu-e1   

  1. 1Department of Neurology, 2Clinical Laboratory, Second Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, Jiangsu Province, China
  • Revised:2017-05-04 Online:2017-10-18 Published:2017-11-08
  • Contact: Wei Xiu-e, M.D., Chief physician, Department of Neurology, Second Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, Jiangsu Province, China
  • About author:Li Zhi-ning, Master, Attending physician, Department of Neurology, Second Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, Jiangsu Province, China
  • Supported by:

    the “Bu Chang Bei” Neurology Research Fund in Jiangsu Province in 2013; the Project of Xuzhou Municipal Science and Technology Department, No. KC14SH063

摘要:

文章快速阅读:

文题释义:
血管新生:
在原有毛细血管与(或)微静脉基础上,通过血管内皮细胞增殖和迁移,从先前存在的血管处,以芽生或者非芽生的方式生成新的毛细血管。其受到促血管生成因子和抑制血管生成因子调控。各种因子的平衡,保证血管处于正常的生长状态。
脑室下区:神经系统的发育最早起始于胚胎的神经管和神经嵴,其神经管在发育后期发育成脑室系统和脊髓中央管,管腔内面覆盖的细胞为神经上皮细胞,具有活跃的增殖和分化能力,此区域称为脑室下区,亦称为室管膜下区,在神经发生及神经损伤后修复过程中起着举足轻重的作用。

 

摘要
背景:
血管新生可能与神经干细胞的增殖有相关性,但仍无统一观点。
目的:观察血管新生对局灶性缺血再灌注后大鼠脑室下区神经干细胞增殖的影响。
方法:成年雄性SD大鼠,随机分为正常组、假手术组、手术组、侧脑室注射血管内皮生长因子+手术组、侧脑室注射生理盐水+手术组,各组再分为缺血再灌注1,3,7,14 d组,每组12只。线栓法制作局部脑缺血再灌注模型,给予相应干预措施,利用免疫组化法检测各组大鼠脑室下区Nestin的表达,Real time-PCR法检测各组大鼠脑室下区vWF mRNA的表达。
结果与结论:①缺血再灌注后脑室下区vWF mRNA、Nestin阳性表达增加;在缺血后7 d,vWF mRNA、Nestin阳性表达均达高峰,提示局灶性缺血再灌注后大鼠脑室下区神经干细胞的增殖与血管新生存在时间相关性;②侧脑室注射血管内皮生长因子+手术组vWF mRNA、Nestin阳性表达较手术组及侧脑室注射生理盐水+手术组明显增高,提示缺血再灌注后血管新生可促进大鼠脑室下区神经干细胞的增殖。

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
ORCID:
0000-0002-8191-903X(李志宁)

关键词: 干细胞, 神经干细胞, 线栓法, 局灶性脑缺血, 脑室下区, 细胞增殖, 血管新生

Abstract:

BACKGROUND: The angiogenesis may be related to the proliferation of neural stem cells, but there is still no unified view.
OBJECTIVE: To observe the influence of angiogenesis on neural stem cell proliferation in the subventricular zone of rats after focal cerebral ischemia/reperfusion.
METHODS: Male Sprague-Dawley rats were randomly divided into normal group, sham group, vascular endothelial growth factor (VEGF)+cerebral ischemia/reperfusion group, normal saline (NS)+cerebral ischemia/reperfusion group. The injection was done via the lateral cerebral ventricle. Then, each group was subdivided into four groups (1, 2, 7, 14 days after ischemia/reperfusion). Focal cerebral ischemia/reperfusion models were made by the thread method. After modeling, the corresponding intervention was given in each group. The expression changes of Nestin and vWF mRNA in the subventricular zone were detected in all groups by immunohistochemical staining and real-time PCR, respectively.
RESULTS AND CONCLUSION: There was a certain increase in vWF and Nestin positive expression in the subventricular zone after cerebral ischemia/reperfusion. At 7 days after ischemia, the expression of vWF mRNA and Nestin reached the peak, indicating the proliferation of neural stem cells in the subventricular zone after cerebral ischemia/reperfusion is associated with the time of angiogenesis. In addition, the expression of vWF mRNA and Nestin was significantly higher in the VEGF+cerebral ischemia/reperfusion group than the other two groups, indicating angiogenesis could promote the proliferation of neural stem cells in the subventricular zone of rats after cerebral ischemia/reperfusion. 

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: Neural Stem Cells, Brain Ischemia, Vascular Endothelial Growth Factors, Cell Proliferation, Tissue Engineering

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