中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (14): 2059-2065.doi: 10.3969/j.issn.2095-4344.2016.14.012

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

骨髓基质干细胞移植阿尔茨海默病模型大鼠:改善学习及记忆能力

高明龙,张英东,李 娜,乔 君,余 明   

  1. 河北医科大学第一医院精神科,河北省石家庄市  050031
  • 收稿日期:2016-02-23 出版日期:2016-04-01 发布日期:2016-04-01
  • 通讯作者: 余明,硕士,副主任医师,河北医科大学第一医院精神科,河北省石家庄市 050031
  • 作者简介:高明龙,男,1978年生,汉族,山东省茌平县人,2003年齐齐哈尔医学院毕业,硕士,主治医师。
  • 基金资助:

    河北省计生委员会2014年度医学科学研究课题(ZL20140099)

Bone marrow mesenchymal stem cells transplanted into a rat model of Alzheimer’s disease: improvement in the learning and memory ability

Gao Ming-long, Zhang Ying-dong, Li Na, Qiao Jun, Yu Ming   

  1. Department of Psychiatry, First Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China
  • Received:2016-02-23 Online:2016-04-01 Published:2016-04-01
  • Contact: Yu Ming, Master, Associate chief physician, Department of Psychiatry, First Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China
  • About author:Gao Ming-long, Master, Attending physician, Department of Psychiatry, First Hospital of Hebei Medical University, Shijiazhuang 050031, Hebei Province, China
  • Supported by:

    the Medical Science Research Project of Hebei Health and Family Planning Commission in 2014, No. ZL20140099

摘要:

文章快速阅读:

 

文题释义:
阿尔茨海默病模型大鼠:给大鼠注射β淀粉样蛋白可引起大鼠脑组织神经元功能丧失,导致学习记忆能力下降,最终使β淀粉样蛋白沉积,可构建阿尔茨海默病模型。学习记忆的损伤与海马神经再生障碍有关,β淀粉样蛋白沉积引起痴呆会导致海马功能受损,进而导致新生神经元下降。
阿尔茨海默病:又叫老年性痴呆,是一种中枢神经系统变性病,起病隐袭,病程呈慢性进行性,是老年期痴呆最常见的一种类型。主要表现为渐进性记忆障碍、认知功能障碍、人格改变及语言障碍等神经精神症状,严重影响社交、职业与生活功能。阿尔茨海默病的病因及发病机制尚未阐明,特征性病理改变为β淀粉样蛋白沉积形成的细胞外老年斑和tau蛋白过度磷酸化形成的神经细胞内神经原纤维缠结,以及神经元丢失伴胶质细胞增生等。

背景:临床上通过药物治疗阿尔茨海默病患者虽然在一定程度上可以减轻和延缓阿尔茨海默病的进展,但单药治疗只有30%的患者达到临床治愈,而且并不能完全康复。
目的:观察大鼠骨髓基质干细胞移植对阿尔茨海默病大鼠的治疗作用。
方法:将大鼠海马区注射β淀粉样蛋白建立阿尔茨海默病模型大鼠,并在模型大鼠的海马区进行大鼠骨髓基质干细胞移植。
结果与结论:①行为学变化:造模2周后,与对照组比,模型组和实验组大鼠逃避潜伏期均明显较长    (P < 0.05),表明阿尔茨海默病模型大鼠建造成功。细胞移植4周后,与模型组比,实验组大鼠平均逃避潜伏期迅速下降(P < 0.05),大鼠在平台象限滞留时间明显延长(P < 0.05);②胆碱乙酰化酶:细胞移植4周后,脑组织检测结果显示,实验组大鼠胆碱乙酰化酶的表达与模型组相比显著提高(P < 0.05)。③结果显示:骨髓基质干细胞可在阿尔茨海默病大鼠海马区分化及存活,对其学习及记忆能力具有一定的改善作用。
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: 0000-0003-3083-5271(余明)

关键词: 干细胞, 移植, 阿尔茨海默病, β淀粉样蛋白, 骨髓基质干细胞, 大鼠, 干细胞移植, 海马, 胆碱乙酰化酶, 水迷宫, 逃避潜伏期, 滞留时间

Abstract:

BACKGROUND: Drug therapy can partly reduce and delay the progress of Alzheimer’s disease, but only 30% with the single drug treatment obtain clinical cure.
OBJECTIVE: To study the therapeutic effect of bone marrow mesenchymal stem cells transplantation for rats with Alzheimer’s disease.
METHODS: Amyloid β-protein was injected into the hippocampus of Sprague-Dawley rats to construct the model of Alzheimer’s disease. And bone marrow stromal stem cells were transplanted into the hippocampus of the rat models.
RESULTS AND CONCLUSION: At 2 weeks after modeling, compared with the control group, the escape latency in the model and experimental groups was significantly longer (P < 0.05), which indicating that Alzheimer’s disease models were successfully established. At 4 weeks after cell transplantation, compared with the model group, the average escape latency in the experimental group was significantly decreased, but retention time on the platform quadrant was significantly prolonged (P < 0.05). Besides, at 4 weeks after cell transplantation, expression of choline acetyltransferase in the experimental group was significantly higher than that in the model group (P < 0.05). In conclusion, bone marrow mesenchymal stem cells cannot only differentiate and survive in the hippocampus of rats with Alzheimer’s disease, but also improve the learning and memory ability.
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: Stem Cells, Tissue Engineering, Alzheimer Disease