中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (19): 2857-2863.doi: 10.3969/j.issn.2095-4344.2016.19.018

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

神经干细胞在新型复合支架中的生长和分化

邢  冉1,2,陈旭义2,朱  祥1,2,李瑞欣3,涂  悦2   

  1. 1天津中医药大学,天津市  300193
    2武警后勤学院附属医院脑科医院脑创伤与神经疾病研究所天津市神经创伤修复重点实验室,天津市  300162
    3军事医学科学院卫生装备研究所,天津市  300161
  • 收稿日期:2016-03-02 出版日期:2016-05-06 发布日期:2016-05-06
  • 通讯作者: 涂悦,教授,硕士生导师,武警后勤学院附属医院脑科医院,天津市 300162
  • 作者简介:邢冉,女,1989年生,河北省石家庄市人,汉族,天津中医药大学在读硕士。
  • 基金资助:

    天津市科技支撑计划重点项目(14ZCZDGX00500);武警后勤学院附属医院种子基金项目(FYZ201403)

Neural stem cells on a novel composite scaffold: growth and differentiation

Xing Ran1, 2, Chen Xu-yi2, Zhu Xiang1, 2, Li Rui-xin3, Tu Yue2   

  1. 1Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
    2Brain Hospital, Affiliated Hospital of Logistics University of People’s Armed Police Force, Institute of Brain Trauma and Neurological Disorders, Neurotrauma Repair Key Laboratory of Tianjin, Tianjin 300162, China
    3Medical Equipment Institute of Military Medical Sciences Academy, Tianjin 300161, China
  • Received:2016-03-02 Online:2016-05-06 Published:2016-05-06
  • Contact: Tu Yue, Professor, Master’s supervisor, Brain Hospital, Affiliated Hospital of Logistics University of People’s Armed Police Force, Institute of Brain Trauma and Neurological Disorders, Neurotrauma Repair Key Laboratory of Tianjin, Tianjin 300162, China
  • About author:Xing Ran, Studying for master’s degree, Tianjin University of Traditional Chinese Medicine, Tianjin 30019, China
  • Supported by:

    the Key Projects of Tianjin Science and Technology Support Program, No. 14ZCZDGX00500; the Seeding Fund of the Affiliated Hospital of Logistics University of People’s Armed Police Force, No. FYM201432

摘要:

文章快速阅读:

文题释义:
3-D打印技术:
指在计算机控制下,根据物体的计算机辅助设计模型或计算机断层扫描等数据,通过材料的精确3-D堆积,快速制造任意复杂形状3-D物体的新型数字化成型技术。
神经干细胞:神经干细胞可以自我更新,分化为神经胶质细胞和神经元,其可以补充凋亡的神经元和胶质细胞,从而重新形成新的有功能的神经回路,是中枢神经组织工程理想的种子细胞。

 

摘要
背景:
神经干细胞具有自我增殖和多向分化潜能,是中枢神经组织工程理想的种子细胞。胶原蛋白和丝素蛋白作为生物支架材料已得到广泛应用,但是两者单独使用时均具有不足。那么能否将二者结合起来构建一个新的神经组织工程支架?该新型支架对神经干细胞的生长和分化又会有什么影响呢?
目的:观察新型复合支架中神经干细胞的生长和分化情况。
方法:将大鼠胚胎神经干细胞接种于新型复合支架中,通过光镜和扫描电镜观察其在支架中生长和分化情况。以常规悬浮培养作为对照组,使用CCK-8检测两组中神经干细胞的活力。对神经干细胞与新型复合支架的三维空间复合体进行石蜡切片,并进行苏木精-伊红染色和免疫荧光染色,观察神经干细胞在材料表面及内部的生长、分化情况。
结果与结论:①新型复合支架中的神经干细胞可以很好地生长、分化,细胞与细胞之间形成突触;②CCK-8检测显示,神经干细胞在支架中生长良好,新型复合支架中神经干细胞活力要优于对照组(P < 0.05);③石蜡切片的苏木精-伊红染色和免疫荧光染色进一步证明神经干细胞在支架中能够很好的生长和分化;④结果说明,制备的新型复合支架具有良好的生物相容性,有利于神经干细胞生长及分化,有良好的应用前景。

 

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: 0000-0001-5312-7118(邢冉)

关键词: 干细胞, 分化, 神经干细胞, 生物材料, 胶原蛋白, 丝素蛋白, 生物相容性, 细胞分化, 神经组织工程, 3-D打印技术

Abstract:

BACKGROUND: Neural stem cells with self-proliferation and differentiation potential are the ideal seed cells for central nervous tissue engineering. Although collagen and silk fibroin as biological scaffold materials have been widely used, both of them used alone have certain shortcomings. Is it possible to combine the two materials to build a novel neural tissue-engineered scaffold? What is the effect of this novel scaffold on the growth and differentiation of neural stem cells?
OBJECTIVE: To observe the growth and differentiation of neural stem cells seeded onto the novel composite scaffold.
METHODS: The rat embryonic neural stem cells were inoculated onto new composite scaffolds, and then, their growth and differentiation were observed by light microscopy and scanning electron microscopy. Neural stem cells were cultured in conventional suspension culture as control group. Cell counting kit-8 assay was used to detect viability of neural stem cells in the two groups. Three-dimensional composite scaffolds carrying neural stem cells were sliced into paraffin sections to observe the growth and differentiation of neural stem cells by hematoxylin-eosin staining and immunofluorescence staining.
RESULTS AND CONCLUSION: Neural stem cells cultured on the new composite scaffold grew and differentiated well, and interconnected synapses were observed. Cell counting kit-8 assay showed that neural stem cells on the scaffold grew well, and the cell viability was significantly higher in the composite scaffold group than that in the control group (P < 0.05). Hematoxylin-eosin staining and immunofluorescence staining of paraffin sections further provided evidence for good growth and differentiation of neural stem cells on the scaffold. These results indicate that the novel composite scaffold with good biocompatibility benefits the growth and differentiation of neural stem cells, promising a favorable application prospect.

 

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, Biocompatible Materials, Cell Differentiation, Tissue Engineering

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