Chinese Journal of Tissue Engineering Research ›› 2018, Vol. 22 ›› Issue (9): 1443-1449.doi: 10.3969/j.issn.2095-4344.0477

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Combined use of 1,25-dihydroxyvitamin D3 and dexamethasone promotes osteogenic differentiation of synovial fluid mesenchymal stem cells from human temporomandibular joint

Liu Wen-jing1, 2, 3, Sun Yang-peng2, 3, Zheng You-hua2, 3, Zhang Zhi-guang2, 3   

  1. 1Department of Prosthodontics, Stomatological Hospital, Southern Medical University, Guangzhou 510280, Guangdong Province, China;2Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong Province, China; 3Guangdong Key Laboratory of Stomatology, Guangzhou 510070, Guangdong Province, China
  • Revised:2018-02-13 Online:2018-03-28 Published:2018-04-03
  • Contact: Zhang Zhi-guang, Professor, Chief physician, Doctoral supervisor, Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong Province, China; Guangdong Key Laboratory of Stomatology, Guangzhou 510070, Guangdong Province, China
  • About author:Liu Wen-jing, M.D., Attending physician, Department of Prosthodontics, Stomatological Hospital, Southern Medical University, Guangzhou 510280, Guangdong Province, China;Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, Guangdong Province, China; Guangdong Key Laboratory of Stomatology, Guangzhou 510070, Guangdong Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81271115

Abstract:

BACKGROUND: Synovial fluid mesenchymal stem cells can be amplified rapidly in vitro and collected by a minimally invasive method. Recent studies have suggested that synovial fluid mesenchymal stem cells have become an important kind of seed cells for bone tissue engineering. Osteogenic differentiation is required to be optimized prior to the application of synovial fluid mesenchymal stem cells in the bone regeneration.
OBJECTIVE: To describe a protocol to generate osteoblast-lineage cells from human synovial fluid mesenchymal stem cells of the temporomandibular joint using a cocktail that includes glutamax, dexamethasone, β-glycerophosphate, vitamin C, 1,25-dihydroxyvitamin D3, and to investigate the effect of 1,25-dihydroxyvitamin D3 and dexamethasone on the osteogenic capacity of synovial fluid mesenchymal stem cells.
METHODS: Synovial fluid mesenchymal stem cells from the human temporomandibular joint were expanded in vitro and cultured in different osteogenic induction media. The mineralization capacity of osteogenic differentiation was evaluated by alizarin red and Von kossa staining. And the osteogenic markers, including ALP, RUNX2 and OCN, were assessed by reverse transcription-PCR.
RESULTS AND CONCLUSION: The mineralization formation increased greatly in the medium with 100 nmol/L dexamethasone and 10 nmol/L 1,25-dihydroxyvitamin D3. The expression of ALP, RUNX2 and OCN was enhanced distinctly in the 1,25-dihydroxyvitamin D3-induced differentiated cells. These findings reveal that appropriate concentration of 1,25-dihydroxyvitamin D3 and dexamethasone can be ideal ingredients to induce the osteogenic differentiation of human synovial fluid mesenchymal stem cells of the temporomandibular joint. Thus, this effective condition can be used to induce the osteogenic differentiation of synovial fluid mesenchymal stem cells for the bone regeneration in the temporomandibular joint.

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: Synovial Fluid, Mesenchymal Stem Cells, Cell Differentiation, Calcitriol, Dexamethasone, Tissue Engineering

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