中国组织工程研究

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

骨关节炎患者膝关节滑膜组织来源间充质干细胞的增殖与分化

陈  路,夏先学,蒋  科   

  1. 川北医学院附属医院骨科,四川省南充市  637000
  • 出版日期:2015-10-01 发布日期:2015-10-01
  • 作者简介:陈路,男,1976年生,四川省南充市人,汉族,副教授,主要从事骨关节疾病基础与临床研究。

Proliferation and differentiation of mesenchymal stem cells from the synovial tissue in patients with osteoarthritis

Chen Lu, Xia Xian-xue, Jiang Ke   

  1. Department of Orthopedics, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
  • Online:2015-10-01 Published:2015-10-01
  • About author:Chen Lu, Associate professor, Department of Orthopedics, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China

摘要:

背景:相对于其他来源的间充质干细胞,滑膜间充质干细胞来源丰富,并且滑膜组织可以在部分切除后迅速再生,并发症少,已逐渐成为近年来干细胞研究的热点。
目的:观察骨关节炎患者膝关节滑膜组织来源间充质干细胞的增殖和定向分化能力。
方法:对滑膜组织来源间充质干细胞进行分离及培养,采用MTT法检测细胞增殖能力,于成骨诱导第7天定量检测碱性磷酸酶活性,诱导第7,14,21天检测成骨相关基因表达,诱导第21天行茜素红染色。
结果与结论:①第3代滑膜间充质干细胞增殖速度较快,接种第1,2天处于潜伏期,3-6 d为对数增长期,第7天细胞增殖速度变慢,进入平台期。②成骨诱导后第3,7,10天诱导组碱性磷酸酶活性均显著高于对照组(P < 0.05)。成骨诱导21 d,茜素红染色阳性,细胞外基质中出现钙沉积以及钙结节。③成骨诱导第7天可见骨结合蛋白以及Runx-2的表达,至第21 天时,骨结合蛋白以及Runx-2的表达水平达到最大值。④以上结果表明来源于晚期骨关节炎患者膝关节滑膜组织的间充质干细胞具有很强的增殖能力,在体外可成功诱导分化为成骨细胞。

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, 骨髓干细胞, 骨关节炎, 间充质干细胞, 膝关节, 滑膜组织, 体外培养, 成骨细胞, 定向分化

Abstract:

BACKGROUND: With respect to mesenchymal stem cells from other sources, synovial mesenchymal stem cells are rich in source, and moreover, the synovial tissue can regenerate quickly after partial hepatectomy and lead to fewer complications, in recent year, which have become a hot spot in stem cell research.
OBJECTIVE: To observe the proliferation and directional differentiation of synovial mesenchymal stem cells from osteoarthritis patients.
METHODS: Synovial mesenchymal stem cells were isolated and cultured. MTT assay was used to detect cell proliferation ability. Alkaline phosphatase activity was detected quantitatively at 7 days of osteogenic induction, and osteogensis-related gene expression was measured at 7, 14, 21 days of osteogenic induction. Alizarin red staining was performed at 21 days of induction.
RESULTS AND CONCLUSION: (1) Passage 3 synovial mesenchymal stem cells proliferated faster, which were in latent period at 1, 2 days after inoculation, in logarithmic growth phase at 3-6 days, and then entered into the plateau phase at 7 days. (2) The activity of alkaline phosphatase was significantly higher in the induction group than the control group at 3, 7, 10 days after osteogenic induction (P < 0.05). The cells were positive for alizarin red staining at 21 days of osteogenic induction, and there were calcium deposits and calcium nodules in the extracellular matrix. (3) Bone-binding protein and Runx2 were visible at 7 days of osteogenic induction, and reached the peak at 21 days. These findings indicate that synovial mesenchymal stem cells from patients with advanced osteoarthritis have strong proliferation ability, which can differentiate into osteoblasts under in vitro induction.

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: Knee, Synovial Membrane, Mesenchymal Stem Cells, Cell Proliferation, Cell Differentiation, Tissue Engineering

中图分类号: