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山东大学学报(医学版) ›› 2012, Vol. 50 ›› Issue (5): 60-.

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人脑胶质瘤干细胞的分离和脑瘤浸润动物模型的建立

王志刚,姜彬,孟庆虎,郝晓光,丁璇,李纪森   

  1. 山东大学第二医院神经外科,  济南 250033
  • 收稿日期:2011-12-01 出版日期:2012-05-10 发布日期:2012-05-10
  • 作者简介:王志刚,教授,博士生导师,主要从事脑血管病及脑肿瘤的基础与临床研究
  • 基金资助:

    高等学校博士学科点专项科研基金资助项目(20110131110053)

Isolation of human glioma-derived stem cells and
establishment of an invasive glioma model

WANG Zhi-gang, JIANG Bin, MENG Qing-hu, HAO Xiao-guang, DING Xuan, LI Ji-sen   

  1. Department of Neurosurgery, The Second Hospital of Shangdong University, Jinan 250033, China
  • Received:2011-12-01 Online:2012-05-10 Published:2012-05-10

摘要:

目的   探讨利用脑胶质瘤分离培养胶质瘤干细胞的方法,并建立脑胶质瘤浸润动物模型。方法   采用神经干细胞培养方法对12例手术切除的脑胶质瘤新鲜肿瘤组织进行培养,对形成细胞球的干细胞进行增殖、自我更新及分化试验,用免疫细胞化学法检测干细胞标志物,并用转染增强型绿色荧光蛋白的干细胞进行体内成瘤试验。结果   12例胶质瘤标本中共有9例成功培养出肿瘤神经细胞球,这些神经细胞球具有增殖、自我更新及分化能力,能表达特异性的分子标记物,并且可在免疫缺陷小鼠脑内形成与人类胶质瘤相似的、具有浸润性特征的肿瘤。结论   采用神经干细胞无血清培养方法可以成功培养出胶质瘤干细胞,并且在体内建立了一种新的胶质瘤浸润模型。

关键词: 脑胶质瘤;干细胞;培养与鉴定;转染;浸润动物模型

Abstract:

Objective   To isolate brain tumor stem cells(BTSCs)from glioblastoma(GBM)specimens, and to develop an infiltrative GBM model. Methods   Glioma neural spheres were isolated from 12 glioma tissues. The cells were observed for proliferation, self-renewal and differentiation. Confirmation was done by testing for expression of  specific molecular markers. These cells’ functionality in initiating tumors was examined in immune-deficit mice. Results   Glioma neural spheres were isolated from 9 out of the 12 samples and were able to express specific molecular markers. These cells had the capacity of proliferation, self-renewal and differentiation. Further, these cells were found to be able to initiate GBM-like tumors in mice brains. Conclusion   We successfully isolated BTSCs from human glioblastoma (GBM) samples. An invasive glioma model was established.

Key words: Glioma; Stem cells; Culture and identification; Transfection; Animal model

中图分类号: 

  • R651
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