中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (6): 992-998.doi: 10.3969/j.issn.2095-4344.2013.06.008

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

髓核细胞诱导骨髓间充质干细胞向髓核方向的分化

陈 亮1,2,李大鹏1,黄永辉1,2,刘 侃2   

  1. 1江苏大学附属医院,江苏省镇江市 212000
    2宜兴市人民医院,江苏省宜兴市 214200
  • 收稿日期:2012-09-09 修回日期:2012-11-14 出版日期:2013-02-05 发布日期:2013-02-05
  • 通讯作者: 黄永辉,硕士,主任医师,江苏大学附属医院,江苏省镇江市 212000;宜兴市人民医院,江苏省宜兴市 214200
  • 作者简介:陈亮★,男,1984年生,江苏省宜兴市人,汉族,2012年镇江医学院毕业,硕士,医师,主要从事组织工程学研究。 www.cl05107907962@163.com

Induced differentiation of nucleus pulposus cells from bone marrow mesenchymal stem cells

Chen Liang1, 2, Li Da-peng1, Huang Yong-hui1, 2, Liu Kan2   

  1. 1 Affiliated Hospital of Jiangsu University, Zhenjiang 212000, Jiangsu Province, China
    2 People’s Hospital of Yixing, Yixing 214200, Jiangsu Province, China
  • Received:2012-09-09 Revised:2012-11-14 Online:2013-02-05 Published:2013-02-05
  • Contact: Huang Yong-hui, Master, Chief physician, Affiliated Hospital of Jiangsu University, Zhenjiang 212000, Jiangsu Province, China; People’s Hospital of Yixing, Yixing 214200, Jiangsu Province, China
  • About author:Chen Liang★, Master, Physician, Affiliated Hospital of Jiangsu University, Zhenjiang 212000, Jiangsu Province, China; People’s Hospital of Yixing, Yixing 214200, Jiangsu Province, China www.cl05107907962@163.com

摘要:

背景:国内外已有很多文献相继报道了用骨髓间充质干细胞-藻酸盐复合植入材料来修复大鼠退变的腰椎间盘,但尚缺少对此复合物与正常髓核细胞之间的各项生物学指标的比较。
目的:在Transwell非接触共培养条件下,研究髓核细胞对骨髓间充质干细胞的诱导作用。
方法:全骨髓法培养大鼠骨髓间充质干细胞并鉴定,取第3代骨髓间充质干细胞及髓核细胞复合藻酸盐接种于Transwell共培养系统中,上室接种骨髓间充质干细胞藻酸盐复合物,下室接种髓核细胞藻酸盐复合物,共培养7 d后回收上层骨髓间充质干细胞。
结果与结论:RT-PCR方法检测共培养组Ⅱ型胶原、Sox-9和多功能蛋白聚糖的mRNA表达均接近正常髓核细胞。说明共培养条件下髓核细胞能诱导骨髓间充质干细胞向髓核方向分化。

关键词: 干细胞, 骨髓干细胞, sox9, 骨髓间充质干细胞, 藻酸盐, 髓核, RT-PCR, 椎间盘退变, Ⅱ型胶原, 多功能蛋白聚糖, Transwell共培养系统, 其他基金, 干细胞图片文章

Abstract:

BACKGROUND: There have been many reports addressing repair of degenerative lumbar intervertebral discs in rats using alginate compounded with bone marrow mesenchymal stem cells. However, there are few reports describing biological indices of this compounded material versus normal nucleus pulposus cells.
OBJECTIVE: To investigate the inducing effects of normal nucleus pulposus cells on bone marrow mesenchymal stem cells under Transwell non-contact co-culture condition.
METHODS: Rat bone marrow mesenchymal stem cells were cultured from the whole bone marrow and identified. Passage 3 bone marrow mesenchymal stem cells and nucleus pulposus cells compounded onto alginate were inoculated into a Transwell co-culture system. Bone marrow mesenchymal stem cells compounded onto alginate were inoculated onto the upper layer, and nucleus pulposus cells compounded onto alginate were inoculated onto the lower layer. After 7 days of co-culture, bone marrow mesenchymal stem cells were retrieved from the upper layer.
RESULTS AND CONCLUSION: RT-PCR results showed that type Ⅱ collagen, Sox-9 and versian mRNA expression in the bone marrow mesenchymal stem cells + nucleus pulposus cells group was similar to that in the normal nucleus pulposus cells group. These findings suggest that after co-cultured with nucleus pulposus cells, bone marrow mesenchymal stem cells can be induced to differentiate into nucleus pulposus cells.

Key words: stem cells, bone marrow-derived stem cells, sox9, bone marrow mesenchymal stem cells, alginate, nucleus pulposus, RT-PCR, intervertebral disc degeneration, type Ⅱ collagen, version, Transwell co-culture system, other grants-supported paper, stem cell photographs-containing paper

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