Chinese Journal of Tissue Engineering Research

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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

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

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