中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (37): 5923-5928.doi: 10.3969/j.issn.2095-4344.2014.37.004

• 骨髓干细胞 bone marrow stem cells • 上一篇    下一篇

绿色荧光蛋白转基因大鼠骨髓间充质干细胞的分离鉴定

王  阳,曹志强   

  1. 解放军沈阳军区总医院泌尿外科,辽宁省沈阳市  110840
  • 修回日期:2014-08-24 出版日期:2014-09-03 发布日期:2014-09-03
  • 通讯作者: 曹志强,博士,副主任医师,解放军沈阳军区总医院泌尿外科,辽宁省沈阳市 110840
  • 作者简介:王阳,男,1987年生,辽宁省本溪市人,满族,硕士,主要从事男科基础与临床研究。
  • 基金资助:

    辽宁省自然科学基金项目(2013020199)

Isolation and identification of bone marrow mesenchymal stem cells from transgenic rats with green fluorescent protein gene

Wang Yang, Cao Zhi-qiang   

  1. Department of Urinary Surgery, General Hospital of Shenyang Military Region, Shenyang 110840, Liaoning Province, China
  • Revised:2014-08-24 Online:2014-09-03 Published:2014-09-03
  • Contact: Cao Zhi-qiang, M.D., Associate chief physician, Department of Urinary Surgery, General Hospital of Shenyang Military Region, Shenyang 110840, Liaoning Province, China
  • About author:Wang Yang, Master, Department of Urinary Surgery, General Hospital of Shenyang Military Region, Shenyang 110840, Liaoning Province, China
  • Supported by:

    the Natural Science Foundation of Liaoning Province, No. 2013020199

摘要:

背景:转基因动物提取的间充质干细胞自身携带绿色荧光蛋白,与传统病毒、质粒转染相比,能在活细胞中稳定地表达,可较快筛选其修饰的细胞。
目的:观察绿色荧光蛋白转基因大鼠骨髓间充质干细胞的生物学特性。
方法:取2周龄的绿色荧光蛋白转基因大鼠双侧长骨骨髓,采用全骨髓贴壁法分离培养骨髓间充质干细胞。流式细胞术分析第5代绿色荧光蛋白阳性骨髓间充质干细胞的细胞表型,并分别加入成骨及成脂条件培养液进行体外多向诱导分化,采用茜素红钙盐染色和油红O染色进行鉴定。
结果与结论:成功获得了稳定表达绿色荧光蛋白的骨髓间充质干细胞,流式细胞仪检测细胞表达CD90和CD105,不表达或弱表达CD14和CD45。经成骨诱导3周后茜素红染色可见有橘红色钙盐沉积,经成脂诱导3周后油红O染色见红色的脂滴。结果表明稳定表达的绿色荧光蛋白未影响到骨髓间充质干细胞的多向分化潜能,可作为良好的示踪因子。


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, 骨髓干细胞, 绿色荧光蛋白, 骨髓间充质干细胞, 转基因大鼠, 细胞表型, 成骨分化, 成脂分化, 辽宁省自然科学基金

Abstract:

BACKGROUND: Mesenchymal stem cells from transgenic animals carry green fluorescent protein that can be stably expressed in viable cells and can be used to rapidly screen modified cells in comparison with traditional virus and plasmids.
OBJECTIVE: To study the biological features of bone marrow derived stromal cells from transgenic rats with green fluorescent protein gene.
METHODS: Bone marrows were isolated from the bilateral long bones of 2-week-old transgenic rats with green fluorescent protein gene, and cultivated in conditioned culture medium to obtain bone marrow mesenchymal stem cells with green fluorescent protein gene. The passage 5 bone marrow mesenchymal stem cells with green fluorescent protein gene were analyzed by flow cytometry to detect cell surface molecules, and were induced in calcium or adipogenic induction medium. After calcium induction, the alizarin red staining was performed to test the formation of calcium concentration. After adipogenic induction, bone marrow mesenchymal stem cells were detected with oil red O staining.
RESULTS AND CONCLUSION: Bone marrow mesenchymal stem cells, stably expressing green fluorescent protein gene, were obtained successfully from the transgenic rat with green fluorescent protein gene. The cells expressed CD90, CD105 strongly, but did not express or weakly expressed CD14 andCD45. After 3 weeks of calcium induction, jacinth calcium salts could be detected in the cells by alizarin red staining. At 3 weeks of adipogenic induction, the cells showed positive oil red O staining. The green fluorescent protein gene, as report gene, exerts no effect on the cell surface molecules and multilineage potential of bone marrow mesenchymal stem cells, which can be used as an efficient tracer.


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: bone marrow, mesenchymal stem cells, green fluorescent proteins, rats, transgenic

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