Chinese Journal of Tissue Engineering Research ›› 2013, Vol. 17 ›› Issue (29): 5282-5289.doi: 10.3969/j.issn.2095-4344.2013.29.004

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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*

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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