中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (1): 75-80.doi: 10.3969/j.issn.2095-4344.2014.01.013

• 脐带脐血干细胞 umbilical cord blood stem cells • 上一篇    下一篇

体外诱导人脐带间充质干细胞向神经干细胞的分化

李伟伟1,姚星宇2,杨丽敏3,赵鹏伟3,张国华4   

  1. 内蒙古医科大学,1研究生学院,3病原生物与免疫学研究中心,内蒙古自治区呼和浩特市  010059;2满洲里南区医院内科,内蒙古自治区满洲里市  021400;4内蒙古医科大学附属医院神经内科,内蒙古自治区呼和浩特市  010059
  • 修回日期:2013-11-19 出版日期:2014-01-01 发布日期:2014-01-01
  • 通讯作者: 张国华,主任医师,硕士研究生导师,内蒙古医科大学附属医院神经内科,内蒙古自治区呼和浩特市 010059
  • 作者简介:李伟伟,男,1987年生,汉族,山西省临汾市人,内蒙古医科大学在读硕士,主要从事脑血管疾病方面的研究。
  • 基金资助:

    国家自然科学基金(81360189);内蒙古医科大学附属医院重大科研项目(NYFY ZD 2012004)

Induced differentiation of human umbilical cord mesenchymal stem cells into neural stem cells in vitro

Li Wei-wei1, Yao Xing-yu2, Yang Li-min3, Zhao Peng-wei3, Zhang Guo-hua4   

  1. 1Inner Mongolia Medical University Graduate School, Hohhot 010059, Inner Mongolia Autonomous Region, China; 2Department of Internal Medicine, Manzhouli Southern District Hospital, Manzhouli 021400, Inner Mongolia Autonomous Region, China; 3Pathogenic Organisms and Immunology Laboratory of Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China; 4Department of Neurology, the First Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China
  • Revised:2013-11-19 Online:2014-01-01 Published:2014-01-01
  • Contact: Zhang Guo-hua, Chief physician, Master’s supervisor, Department of Neurology, the First Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China
  • About author:Li Wei-wei, Studying for master’s degree, Inner Mongolia Medical University Graduate School, Hohhot 010059, Inner Mongolia Autonomous Region, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81360189; the Major Scientific Research Program of the First Affiliated Hospital of Inner Mongolia Medical University, No. NYFY ZD 2012004

摘要:

背景:人脐带间充质干细胞较骨髓、脂肪等来源的间充质干细胞易取材、更为原始,并不受伦理、法律的限制,是中枢神经系统损伤修复最具治疗潜力的细胞来源之一。
目的:探讨重组人碱性成纤维生长因子、重组人表皮生长因子定向诱导人脐带间充质干细胞分化为神经干细胞的潜能。
方法:采用碱性成纤维生长因子、表皮生长因子作为诱导剂,体外诱导人脐带间充质干细胞;在倒置显微镜下动态观察细胞形态学变化,并用免疫荧光法检测人脐带间充质干细胞向神经干细胞分化的情况,实时荧光定量PCR技术检测诱导前后神经干细胞标记蛋白巢蛋白在mRNA水平的相对表达量。
结果与结论:形态学观察经诱导后的人脐带间充质干细胞呈神经干细胞球改变;免疫荧光法及实时荧光定量PCR技术均可检测到神经干细胞标记物巢蛋白,并可进一步分化表达神经元标志蛋白神经元特异性烯醇化酶、微管相关蛋白2 以及神经胶质细胞蛋白、神经胶质原纤维酸性蛋白。碱性成纤维生长因子、表皮生长因子可定向诱导人脐带间充质干细胞向神经干细胞及神经元、神经胶质细胞分化。


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


全文链接:

关键词: 干细胞, 脐带干细胞, 碱性成纤维生长因子, 表皮生长因子, 诱导分化, 神经干细胞, 巢蛋白, 国家自然科学基金

Abstract:

BACKGROUND: Compared with mesenchymal stem cells from bone marrow and fat, human umbilical cord-derived mesenchymal stem cells, as one of the most potential cell sources to repair the central nervous system, are easy-based, more primitive, and not limited by ethical and legal.
OBJECTIVE: To explore differentiation of human umbilical cord-derived mesenchymal stem cells into neural stem cells induced by the recombinant human basic fibroblast growth factor and recombinant human epidermal growth factor.
METHODS: The human umbilical cord-derived mesenchymal stem cells were induced by basic fibroblast growth factor and epidermal growth factor in vitro. The cell morphology was observed by invert microscope. The 
differentiation status was detected by immunofluorescence. The Nestin expression in mRNA level before and after induction was detected by real-time PCR.
RESULTS AND CONCLUSION: The neural stem cell balls were observed after induction. And the Nestin was detected by immunofluorescence and real-time PCR. Nestin could further differentiate to the neuronal markproteins neuron-specific enolase, microtubule-associated protein 2 protein and glial fibrillary acidic protein. Results from this study show that basic fibroblast growth factor and epidermal growth factor can induce human umbilical cord-derived mesenchymal stem cells to differentiate to neural stem cells, neurons and glial 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


全文链接:

Key words: stem cells, mesenchymal stem cells, umbilical cord, neural stem cells, epidermal growth factor, fibroblast growth factors

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