中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (9): 1443-1449.doi: 10.3969/j.issn.2095-4344.0477

• 干细胞培养与分化 stem cell culture and differentiation • 上一篇    下一篇

1,25-二羟维生素D3和地塞米松促进人颞下颌关节滑液间充质干细胞的体外成骨分化

刘文静1,2,3,孙养鹏2,3,郑有华2,3,张志光2,3   

  1. 1南方医科大学口腔医院修复科,广东省广州市 510280;2中山大学光华口腔医学院•附属口腔医院口腔颌面外科,广东省广州市 510055;3广东省口腔医学重点实验室,广东省广州市 510070)
  • 修回日期:2018-02-13 出版日期:2018-03-28 发布日期:2018-04-03
  • 通讯作者: 张志光,教授,主任医师,博士生导师,中山大学光华口腔医学院?附属口腔医院口腔颌面外科,广东省广州市 510055;广东省口腔医学重点实验室,广东省广州市 510070
  • 作者简介:刘文静,女,1984年生,江西省南昌市人,汉族,2016年中山大学毕业,博士,主治医师,主要从事口腔修复和颞下颌关节疾病的临床和基础研究。
  • 基金资助:

    国家自然科学基金(81271115)

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

摘要:

文章快速阅读:

文题释义:
1,25-二羟维生素D3:
维生素D在脊椎动物的骨盐沉积、钙平衡、细胞增殖和间充质干细胞成骨分化等生物学过程中都起了重要作用。1,25-二羟维生素D3是维生素D3的活性代谢产物,是成骨分化转录因子RUNX2的重要调控因子,并可与RUNX2协同引导骨基质矿化重要蛋白OCN的表达;成骨细胞是表达维生素D受体的细胞之一,因而也是1,25-二羟维生素D3的功能靶标,1,25-二羟维生素D3可通过结合维生素D受体发挥作用,调节骨沉积平衡。
成骨相关标志:RUNX2是骨形成初阶段的标志基因,它的表达是成骨分化、骨生成和骨发育的标志。ALP是成骨细胞的表型标志,可以反映成骨细胞的活性。OCN是骨组织中最丰富的非胶原蛋白,由成骨细胞合成和分泌,是体外诱导间充质干细胞成骨分化更加稳定的标志。

 

摘要
背景:
人颞下颌关节滑液间充质干细胞获取微创简便且体外扩增能力强,成为组织工程修复一重要的种子细胞来源,优化其成骨分化能力有利于在关节骨组织再生中的应用。
目的:分析1,25-二羟维生素D3和地塞米松对关节滑液间充质干细胞成骨能力的影响,获得人颞下颌关节滑液间充质干细胞成骨分化的理想条件。
方法:将获得的人颞下颌关节滑液标本进行体外培养扩增,分别加入不同组分的成骨诱导液进行成骨诱导,通过茜素红和Von kossa 染色比较各组矿化形成情况,通过RT-PCR定量比较成骨相关标志ALP、RUNX2和OCN的表达。
结果与结论:①体外培养的人颞下颌关节滑液间充质干细胞可以向成骨细胞分化,其中含有100 nmol/L地塞米松和10 nmol/L 1,25-维生素D3的成骨诱导液其矿化形成明显增强;②含有1,25-二羟维生素D3的成骨诱导液诱导后ALP、RUNX2和OCN的基因表达明显增加;③适当浓度的地塞米松和1,25-二羟维生素D3可以促进人颞下颌关节滑液间充质干细胞的成骨分化,从而可为其自体应用修复颞下颌关节组织提供依据。

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
ORCID: 0000-0002-6903-1951(刘文静)

关键词: 颞下颌关节, 滑液, 间充质干细胞, 成骨诱导, 1, 25-二羟维生素D3, 地塞米松, 干细胞, 国家自然科学基金

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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