中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (23): 3470-3475.doi: 10.3969/j.issn.2095-4344.2016.23.019

• 干细胞因子及调控因子 stem cell factors and regulatory factors • 上一篇    下一篇

皮下注射碱性成纤维细胞生长因子促进血管性痴呆大鼠海马神经干细胞的增殖

刘  森1,戴振霞2,吴春芳1,胡  敬1,崔  蓓1   

  1. 河南大学淮河医院,1神经内科,2检验科,河南省开封市  475000
  • 收稿日期:2016-05-04 出版日期:2016-06-03 发布日期:2016-06-03
  • 作者简介:刘森,男,1973年生,河南省商丘市人,汉族,2004年西安交通大学医学院毕业,硕士,副主任医师,主要从事痴呆、脑血管疾病方面的研究。
  • 基金资助:

    河南省高等学校重点科研项目计划(教科技【2015】1120)

Subcutaneous injection of basic fibroblast growth factors promotes the proliferation of hippocampal neural stem cells in rats with vascular dementia

Liu Sen1, Dai Zhen-xia2, Wu Chun-fang1, Hu Jing1, Cui Bei1   

  1. 1Department of Neurology, 2Department of Laboratory Medicine, Huaihe Hospital of Henan University, Kaifeng 475000, Henan Province, China
  • Received:2016-05-04 Online:2016-06-03 Published:2016-06-03
  • About author:Liu Sen, Master, Associate chief physician, Department of Neurology, Huaihe Hospital of Henan University, Kaifeng 475000, Henan Province, China
  • Supported by:

    the Key Scientific Research Program of Universities in Henan, No. 20151120

摘要:

文章快速阅读:

文题释义:
血管性痴呆:
是老年期痴呆的第二病因,在痴呆中占10%-50%。血管性痴呆是一个综合征,不是一个单一的疾病,不同的血管病理变化均可引起血管性痴呆症状,包括大、小动脉病变,弥漫性缺血性白质病变,心脏脱落栓子的栓塞,血液动力学改变,出血,血液学因素和遗传性疾病等。与血管性痴呆有关的病理生理机制包括局灶性缺血性损害、白质病变、其他与缺血有关的因子、功能因素。
碱性成纤维细胞生长因子:最初是Gospodarowicz从牛脑垂体中纯化出来的一种细胞生长因子,对成纤维细胞系BALB/C3T3有明显的促分裂增殖活性,命名为碱性成纤维细胞生长因子,其等电点为9.6,后来发现脑组织中尚有另外一种与其同源性较强、功能相似但等电点为5.6的碱性成纤维细胞生长因子,故将前者命名为碱性成纤维细胞生长因子,后者命名为酸性成纤维细胞生长因子。

 

摘要
背景:
碱性成纤维细胞生长因子是一种神经营养因子,在中枢神经系统内广泛分布,可以与其相应受体结合,发挥重要的生理作用。
目的:探讨皮下注射碱性成纤维细胞生长因子对血管性痴呆大鼠学习记忆能力和海马nestin阳性神经干细胞增殖的影响。
方法:纳入30只SD大鼠,随机分为3组(n=10):血管性痴呆组、假手术组以及治疗组。血管性痴呆组和治疗组制备血管性痴呆模型,治疗组皮下注射碱性成纤维细胞生长因子。治疗后4周,采用Morris水迷宫实验检测大鼠的学习记忆能力,免疫组织化学染色检测海马nestin阳性细胞数的变化。
结果与结论:①血管性痴呆组的潜伏期显著长于假手术组和治疗组,进出目标象限次数显著少于假手术组和治疗组(P < 0.05)。假手术组和治疗组间比较,差异无显著性意义(P > 0.05);②在荧光显微镜下,治疗组海马CA1,CA2,CA3区均可观察到带有黄绿色荧光的碱性成纤维细胞生长因子阳性神经元;③治疗组海马CA1区分布大量nestin阳性神经元,假手术组也分布较多nestin阳性神经元,血管性痴呆组nestin阳性神经元分布较为稀疏;④结果表明,皮下注射的碱性成纤维细胞生长因子能迁移至海马区,刺激海马nestin阳性神经干细胞增殖,进而改善大鼠学习记忆能力。

 

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:
0000-0003-3997-581X(刘森)

关键词: 干细胞, 神经干细胞, 血管性痴呆, 碱性成纤维细胞生长因子, 海马区

Abstract:

BACKGROUND: As a neurotrophic factor, basic fibroblast growth factors extensively distribute in the central nervous system, and play an important physiological role by combination with their relative receptors.
OBJECTIVE: To investigate the effect of basic fibroblast growth factors on the learning ability and proliferation of nestin-positive hippocampal neural stem cells in rats with vascular dementia.
METHODS: Totally 30 Sprague-Dawley rats were randomly divided into vascular dementia, sham operation and treatment groups. The vascular dementia and treatment groups were for preparing vascular dementia model, and the treatment group was given subcutaneous injection of basic fibroblast growth factors. Subsequently, at 4 weeks, the learning ability of rats and the number of nestin-positive hippocampal neural stem cells was detected by the Morris water maze test and immunohistochemical staining, respectively.
RESULTS AND CONCLUSION: Compared with the vascular dementia group the latency period was significantly shorter in the sham operation and treatment groups, and the number of times crossing the target quadrant was significantly higher in the sham operation and treatment groups (P < 0.05). But there was no significant difference between the sham operation and treatment groups (P > 0.05). Under fluorescence microscope, yellow-green fluorescence stained neurons positive for basic fibroblast growth factor could be found in the CA1, CA2 and CA3 of the treatment group. Additionally, the number of nestin-positive neurons in the CA1 area of the hippocampus was the most in the treatment group, followed by the sham operation group, and the least in the vascular dementia group. These results suggest that the subcutaneous injection of basic fibroblast growth factors can migrate to the hippocampus, , and improve the learning ability of rats by inducing proliferation of nestin-positive hippocampal neural stem cells.

 

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: Dementia, Vascular, Fibroblast Growth Factor 2, Neural Stem Cells, Tissue Engineering

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