中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (29): 5282-5289.doi: 10.3969/j.issn.2095-4344.2013.29.004

• 组织工程骨及软骨材料 tissue-engineered bone and cartilage materials • 上一篇    下一篇

Bio-gide胶原膜体外复合培养犬骨髓间充质干细胞的软骨分化

谢 辉1,杨 飞1, 2,赵德伟1,王本杰1,崔大平1,王 威1,黄诗博1   

  1. 1大连大学附属中山医院骨一科,辽宁省大连市  116001;2贵州省遵义医学院,贵州省遵义市  563000
  • 收稿日期:2013-02-04 修回日期:2013-02-22 出版日期:2013-07-22 发布日期:2013-07-22
  • 通讯作者: 赵德伟,大连大学附属中山医院骨一科,辽宁省大连市 116001 xiehui424@163.com
  • 作者简介:谢辉★,男,1984年生,安徽省宿州市人,汉族,2012年大连大学毕业,硕士,主要从事骨与关节损伤研究。 并列第一作者:杨飞★,男,1986年生,山东省临沂市人,汉族,遵义医学院在读硕士,医师,主要从事骨与关节损伤研究。
  • 基金资助:

    国家科学自然基金支持项目(30970699):不同应力刺激对犬坏死股骨头自身修复影响的实验研究

Chondrocyte differentiation of dog bone marrow mesenchymal stem cells co-cultured with Bio-gide collagen membrane in vitro

Xie Hui1, Yang Fei1, 2, Zhao De-wei1, Wang Ben-jie1, Cui Da-ping1, Wang Wei1, Huang Shi-bo1   

  1. 1First Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, Liaoning Province, China; 2Zunyi Medical University, Zunyi 563000, Guizhou Province, China
  • Received:2013-02-04 Revised:2013-02-22 Online:2013-07-22 Published:2013-07-22
  • Contact: Zhao De-wei, First Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, Liaoning Province, China xiehui424@163.com
  • About author:Xie Hui★, Master, First Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, Liaoning Province, China Yang Fei★, Studying for master’s degree, Physician, First Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, Liaoning Province, China; Zunyi Medical University, Zunyi 563000, Guizhou Province, China Xie Hui and Yang Fei contributed equally to this paper
  • Supported by:

    the National Natural Science Foundation of China, No. 30970699*

摘要:

背景:应用组织工程方法修复股骨头坏死后的软骨损伤应解决的2个关键因素是种子细胞和支架材料。
目的:探讨Bio-gide胶原膜体外与犬骨髓间充质干细胞复合成软骨的可行性。
方法:采用全骨髓血离心法结合贴壁筛选法体外分离培养比格犬骨髓间充质干细胞,观察细胞形态学变化,以细胞表面抗原进行鉴定。采用成软骨诱导培养基诱导第3代骨髓间充质干细胞向软骨细胞分化作为实验组,设置普通培养基培养对照组,MTT比色法测试软骨细胞生长曲线,并行Ⅱ型胶原免疫组织化学和甲苯胺蓝染色等生物学鉴定。将第3代骨髓间充质干细胞与Bio-gide胶原膜体外复合培养行倒置相差显微镜、扫描电镜观察。
结果与结论:采用全骨髓血离心法结合贴壁筛选法获得了高纯度高活性的骨髓间充质干细胞,生长状态良好,扩增能力强,并成功诱导分化为软骨细胞。大量骨髓间充质干细胞在Bio-gide胶原膜上贴附增殖并复层生长,细胞与Bio-gide胶原膜逐渐融为一体;在胶原膜的断面可见胞体伸出突起相互连接包绕胶原膜,其间有明显细胞基质分泌。表明犬骨髓间充质干细胞可在Bio-gide胶原膜上生长并向软骨细胞分化。

关键词: 生物材料, 组织工程软骨材料, 膜生物材料, 骨髓间充质干细胞, Bio-gide胶原膜, 组织工程, 股骨头坏死, 软骨缺损, 种子细胞, 国家科学自然基金

Abstract:

BACKGROUND: Seed cells and scaffold are two key factors for cartilage defects after osteonecrosis of femoral head using tissue-engineered method.
OBJECTIVE: To explore the feasibility of Bio-gide collagen membrane combined with dog bone marrow mesenchymal stem cells into chondrocytes.
METHODS: Bone marrow mesenchymal stem cells were isolated from beagle dogs by whole bone marrow blood centrifugation method and adherence screening method in vitro and cultured. Morphological changes in cells were observed, and identification was done using cell surface antigens. Bone marrow mesenchymal stem cells of passage 3 were induced by chondrocyte induction medium to differentiate into chondrocytes (experimental group). Cells cultured in normal medium were considered as control group. 3-(4, 5-Dimethylthiazol-2-yl) 2, 5-diphenyl tetrazolium bromide assay was used to measure growth curve of chondrocytes. Cells underwent type Ⅱ collagen immunohistochemistry and toluidine blue staining. The coculture of bone marrow mesenchymal stem cells at passage 3 and Bio-gide collagen membrane were observed under an inverted phase contrast microscope and scanning electron microscope.
RESULTS AND CONCLUSION: Bone marrow mesenchymal stem cells with high purity and high viability were obtained by whole bone marrow blood centrifugation method and adherence screening method. Cells grew well  
and had strong amplified ability, and successfully differentiated into chondrocytes. Numerous bone marrow mesenchymal stem cells adhered on the Bio-gide collagen membrane, showing a tendency of multi-layer growth. Cells and Bio-gide collagen membrane seem to blend into an integrant part. Cell processes appeared and connected each other and gradually wrapped the Bio-gide collagen membrane, with the presence of obvious cell matrix secretion. These results suggested that bone marrow mesenchymal stem cells can grow and differentiate into chondrocytes on the Bio-gide collagen membrane.

Key words: biomaterials, tissue-engineered cartilage bone materials, membrane biomaterials, bone marrow mesenchymal stem cells, Bio-gide collagen membrane, tissue engineering, osteonecrosis of the femoral head, cartilage defects, seed cells, National Natural Science Foundation of China

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