中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (36): 5838-5842.doi: 10.3969/j.issn.2095-4344.2015.36.018

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

中脑神经干细胞和骨髓基质干细胞对帕金森大鼠行为学及脑组织形态学的影响

梁新明,付国惠,张保朝   

  1. 南阳市中心医院,河南省南阳市  473000
  • 出版日期:2015-09-03 发布日期:2015-09-03
  • 通讯作者: 张保朝,副院长,南阳市中心医院,河南省南阳市 473000
  • 作者简介:梁新明,男,1984年生,河南省鹤壁市人,2012年新乡医学院毕业,硕士,主治医师,主要从事神经急危重症及神经影像方面的研究。

Effects of midbrain neural stem cells and bone marrow stromal stem cells on behaviors and brain morphology of rats with Parkinson’s disease 

Liang Xin-ming, Fu Guo-hui, Zhang Bao-chao   

  1. Nanyang Central Hospital, Nanyang 473000, Henan Province, China
  • Online:2015-09-03 Published:2015-09-03
  • Contact: Zhang Bao-chao, Nanyang Central Hospital, Nanyang 473000, Henan Province, China
  • About author:Liang Xin-ming, Master, Attending physician, Nanyang Central Hospital, Nanyang 473000, Henan Province, China

摘要:

背景:研究发现神经干细胞或者骨髓基质干细胞可脑内移植治疗中枢神经系统疾病,但是两种干细胞移植治疗效果的比较相对较少。

目的:观察比较中脑神经干细胞和骨髓基质干细胞对帕金森大鼠行为学及脑组织形态学的影响。

方法:58只SD大鼠构建帕金森病模型,随机分为3组,分别为骨髓基质干细胞组(20只)、中脑神经干细胞组(20只)、生理盐水组(18只)。造模成功后3周,选取右侧纹状体 2 个坐标点注入骨髓基质干细胞悬液、中脑神经干细胞悬液、生理盐水5 μL。移植后5个月腹腔注射阿朴吗啡观察大鼠的行为学变化,取纹状体脑组织制备石蜡切片进行免疫组化荧光染色。

结果与结论:治疗后第5个月骨髓基质干细胞组和中脑神经干细胞组大鼠旋转次数较治疗前显著下降(P < 0.05),且明显低于生理盐水组(P < 0.05),骨髓基质干细胞组和神经干细胞组比较差异无显著性意义(P > 0.05)。移植后第1周,骨髓基质干细胞组纹状体内有BrdU与Nestin双重染色细胞;移植后第1个月,脑纹状体内出现BrdU/GFAP双重染色细胞和BrdU/NSE双重染色细胞;纹状体内存在TH阳性细胞,但未出现明显BrdU/TH双重染色细胞;移植1个月之后,BrdU与Nestin双重染色细胞数量逐渐减少,最终基本消失,但仍然存在一定的数量的BrdU/GFAP、BrdU/NSE双重染色细胞,BrdU/GFAP阳性细胞数量相对较多。同一时间点,中脑神经干细胞组也存在类似情况,但生理盐水组未发现双标细胞。结果表明,中脑神经干细胞和骨髓基质干细胞移植均可改善帕金森大鼠的行为学,且可分化为神经元、星形胶质细胞、多巴胺能神经元。

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, 帕金森, 中脑神经干细胞, 骨髓基质干细胞, 细胞移植, 大鼠, 行为学

Abstract:

BACKGROUND: For treatment of central nervous system diseases, neural stem cells (NSCs) or bone marrow stromal stem cells (BMSCs) can be transplanted into the brain, but there are less reports to compare the effects of two kinds of stem cell transplantation.

OBJECTIVE: To explore the effect of midbrain NSCs and BMSCs on the behavior and brain morphology of rats with Parkinson’s disease.

METHODS: Fifty-eight Sprague-Dawley rats were enrolled to establish Parkinson’s disease models, and then randomly divided into three groups, which were treated with 5 μL midbrain NSCs (n=20), 5 μL BMSCs (n=20) and 5 μL normal saline (n=18) via two coordinate points of the right striatum at 3 weeks after modeling, respectively. At 5 months after transplantation, the rats underwent intraperitoneal injection of apomorphine to observe behavioral changes, and then, the striatum was taken for immunohistochemistry staining.

RESULTS AND CONCLUSION: The number of rotations was reduced significantly in the BMSCs and midbrain NSCs groups at 5 months after transplantation (P < 0.05), which was significantly lower than that in the normal saline group (P < 0.05). However, there was no significant difference between the BMSCs and NSCs groups (P > 0.05). In the BMSCs group, BrdU/Nestin positive cells were seen in the brain stratium at 1 week after transplantation; BrdU/GFAP and BrdU/NSE positive cells as well as TH positive cells rather than BrdU/TH positive cells were found in the brain stratium at 1 month after transplantation; after that, the number of BrdU/Nestin positive cells was reduced gradually and disappeared ultimately, but there were still a certain number of BrdU/GFAP and BrdU/NSE positive cells, especially the former ones. Meanwhile, the NSCs group also had a similar situation, but no double-labeled cells were in the normal saline group. These findings indicate that midbrain NSCs and BMSCs transplantation can both improve the behavior of Parkinson’s disease rats, and differentiate into neurons, astrocytes and dopaminergic neurons.

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: Parkinson Disease, Neural Stem Cells, Bone Marrow, Mesenchymal Stem Cells, Neurobehavioral Manifestations

中图分类号: