J4

• 临床研究 • 上一篇    下一篇

成人骨髓间充质干细胞的体外培养及生物学性质

杨 岩1,王 娟2,陈 晓1,康丽花1   

  1. 1. 吉林大学第一医院血液科,吉林 长春130021;2. 吉林省人民医院肿瘤内科,吉林 长春130021
  • 收稿日期:2004-04-07 修回日期:1900-01-01 出版日期:2005-03-28 发布日期:2005-03-28

Culture and biological characteristics of adult human bonemarrow-derived mesenchymal stem cells in vitro

YANG Yan1,WANG Juan2,CHEN Xiao1,KANG Li-hua1   

  1. 1. Department of Hematology and Oncology,First Hospital,Jilin University,Changchun 130021,China;2.Department of Oncology,People′s Hospital,Jilin Province,Changchun 130021,China
  • Received:2004-04-07 Revised:1900-01-01 Online:2005-03-28 Published:2005-03-28

摘要: 目的:建立人骨髓间充质干细胞(BM-MSCs)分离培养方法,观察细胞形态,探讨BM-MSCs生物学特征。 方法:从人骨髓中利用Percoll分离有核细胞,培养于含10%胎牛血清的低糖DMEM培养基中,台盼蓝拒染法测定细胞增殖状态。应用流式细胞仪测定细胞周期及细胞表面抗原特征。 结果;BM-MSCs具有纤维样细胞形态特征,独特的表型,即CD29、CD44、CD166和HLA-ABC阳性,CD34、CD45和HLA-DR阴性;细胞周期分析显示:12.8%处于S期,76.4%处于G0/G1期;细胞生长倍增时间为2~3 d。 结论:BM-MSCS是一群均一的单克隆细胞,具有独特的增殖特征及表面标记。

关键词: 骨髓细胞, 细胞, 培养的

Abstract: Objective To establish a method to isolate and culture the bone marrow-derived mesenchymal stem cells (BM-MSCs) in vitro and investigate their biologic characteristics. Methods The culture of mesenchymal stem cells was initiated from bone marrow low-density mononuclear cells separated by Pecoll centrifugation and maintained in low-glucose DMEM with 10% fetal calf serum. The cell growth pattern was evaluated by trypan blue exclusion. The cell cycle and surface antigenic features were analyzed by flow cytometry. Results The BM-MSCs were positive for CD29,CD44,CD166,HLA-ABC and negative for CD34, CD45,and HLA-DR. Cell cycle analysis showed that 12.8% of them was in S phase and 76.4% of them was in G0/G1 phase. The cells had a population doubling time of 2-3 days. Conclusion BM-MSCs are a homogenous monoclone population of cells with unique growth phenotype characteristics.

Key words: bone marrow cells, cells, cultured

中图分类号: 

  • R329.28