中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (28): 4503-4507.doi: 10.3969/j.issn.2095-4344.2015.28.014

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

不同方式诱导骨髓间充质干细胞的效果比较

戴传强1,贾叙锋2,张 林3,张 戈4   

  1. 1资阳市第一人民医院骨科,四川省资阳市 641300;
    2简阳市人民医院骨科,四川省简阳市 641400;
    3成都医学院附属医院骨科,四川省成都市 610081;
    4泸州市人民医院,四川省泸州市 610081
  • 出版日期:2015-07-02 发布日期:2015-07-02
  • 作者简介:戴传强,男,1980年生,浙江省浦江县人,主治医师,主要从事骨关节病变的临床诊治与关节修复的基础研究。
  • 基金资助:

    中国高校医学期刊临床专项资金项目(11221408);2012年四川省卫生厅科研课题(120389)

Different induction methods for bone marrow mesenchymal stem cells

Dai Chuan-qiang1, Jia Xu-feng2, Zhang Lin3, Zhang Ge4   

  1. 1Department of Orthopedics, the First People’s Hospital of Ziyang, Ziyang 641300, Sichuan Province, China; 
    2Department of Orthopedics, the People’s Hospital of Jianyang City, Jianyang 641400, Sichuan Province, China; 
    3Department of Orthopedics, the Affiliated Hospital of Chengdu Medical College, Chengdu 610083, Sichuan Province, China; 
    4Luzhou People’s Hospital, Luzhou 610081, Sichuan Province, China
  • Online:2015-07-02 Published:2015-07-02
  • About author:Dai Chuan-qiang, Attending physician, Department of Orthopedics, the First People’s Hospital of Ziyang, Ziyang 641300, Sichuan Province, China
  • Supported by:

    the Clinical Special Fund Project of China University Medical Journal, No. 11221408; the Scientific Research Project of Sichuan Health Department in 2012, No. 120389

摘要:

背景:以往大多采用转化生长因子β1诱导骨髓间充质干细胞向软骨细胞分化,但诱导效果不佳。

目的:对比分析骨髓间充质干细胞与关节软骨细胞共培养诱导、转化生长因子β1诱导骨髓间充质干细胞分化为软骨样细胞的效果。

方法:获取SD大鼠关节软骨细胞和骨髓间充质干细胞,分别设置121121浓度组,以转化生长因子β1 诱导组为对照。经诱导培养20 dMTT法检测细胞活力,阿利新蓝比色法检测氨基聚糖含量,Western Blot检测Ⅱ型胶原蛋白表达。

结果与结论:转化生长因β1的吸光度值显著小于软骨细胞和骨髓间充质干细胞11组和软骨细胞和骨髓间充质干细胞21(P < 0.05)。转化生长因子β1组的氨基聚糖含量和Ⅱ型胶原蛋白表达显著低于软骨细胞和骨髓间充质干细胞(121121)组。软骨细胞和骨髓间充质干细胞11组与软骨细胞和骨髓间充质干细胞21组之间各指标比较差异无显著性意义(P > 0.05)。结果表明关节软骨细胞与骨髓间充质干细胞共培养,可使骨髓间充质干细胞向软骨细胞分化,且骨髓间充质干细胞对软骨细胞诱导存在饱和现象。

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, 诱导, 软骨细胞, 骨髓间充质干细胞, 关节, 共培养, 转化生长因子β1

Abstract:

BACKGROUND: Transformation growth factor beta 1 is mostly used to induce the chondrogenic differentiation of bone marrow mesenchymal stem cells, but there is a poor induction efficacy.

OBJECTIVE: To explore the chondrogenic differentiation of bone marrow mesenchymal stem cells co-cultured with articular chondrocytes or induced by transforming growth factor beta 1.
METHODS: Articular chondrocytes and bone marrow mesenchymal stem cells from SD rats were harvested and divided into 1:2, 2:1, 1:1 concentration groups. Cells induced by transforming growth factor beta 1 acted as control group. After 20 days of induced culture, MTT was used to detect cell viability, alcian blue colorimetric assay was applied to measure glycosaminoglycan content, and western blot assay was employed to determine the expression of collagen type II.
RESULTS AND CONCLUSION: The absorbance value in the control group was significantly lower than that in the 1:1 and 2:1 groups (P < 0.05). Glycosaminoglycan content and protein expression of collagen type II were also lower in the control group than the 1:2, 1:1, 2:1 groups. But there was no difference between 1:1 and 2:1 groups (P > 0.05). The results show that bone marrow mesenchymal stem cells co-cultured with articular chondrocytes can be induced to differentiate into chondrocytes, and meanwhile, there is a saturation phenomenon during the chondrogenic differentiation of bone marrow mesenchymal stem 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

Key words: Bone Marrow, Mesenchymal Stem Cells, Chondrocytes, Coculture Techniques, Transforming Growth Factor beta1

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