中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (14): 2147-2152.doi: 10.3969/j.issn.2095-4344.2014.14.003

• 骨髓干细胞 bone marrow stem cells • 上一篇    下一篇

前列腺素E2调控骨髓间充质干细胞成骨分化最佳浓度及其效应基因

李劼若1,2,邓思远3,侯辉歌1,2,黄  浩1,2,王  欢1,2,郇松玮1,2,佘国荣1,2,罗斯敏1,2,刘  宁1,2,查振刚1,2   

  1. 1暨南大学附属第一医院骨关节外科,广东省广州市  510630;2暨南大学骨科疾病研究所,广东省广州市  510632;3广州市花都区花东镇中心卫生院,广东省广州市  510890
  • 收稿日期:2014-03-16 出版日期:2014-04-02 发布日期:2014-04-02
  • 通讯作者: 查振刚,博士,教授,主任医师,暨南大学附属第一医院骨关节外科,暨南大学骨科疾病研究所,广东省广州市 510632
  • 作者简介:李劼若,男,1982年生,广东省广州市人,汉族,2009年暨南大学毕业,硕士,主治医师,主要从事骨关节疾病基础和临床研究。
  • 基金资助:

    广东省医学科学技术研究基金(B2011160);暨南大学第一临床医学院科研培育专项基金(2013212)

Optimal concentration of prostaglandin E2 for osteogenic differentiation of bone marrow mesenchymal stem cells and its effectors 

Li Jie-ruo1, 2, Deng Si-yuan3, Hou Hui-ge1, 2, Huang Hao1, 2, Wang Huan1, 2, Huan Song-wei1, 2, She Guo-rong1, 2, Luo Si-min1, 2, Liu Ning1, 2, Zha Zhen-gang1, 2   

  1. 1Department of Orthopedics, the First Affiliated Hospital of Jinan University, Guangzhou 510630, Guangdong Province, China; 2Orthopedic Research Institute of Jinan University, Guangzhou 510630, Guangdong Province, China; 3Health Center of Donghua Town, Guangzhou 510890, Guangdong Province, China
  • Received:2014-03-16 Online:2014-04-02 Published:2014-04-02
  • Contact: Zha Zhen-gang, M.D., Professor, Chief physician, Department of Orthopedics, the First Affiliated Hospital of Jinan University, Guangzhou 510630, Guangdong Province, China; Orthopedic Research Institute of Jinan University, Guangzhou 510630, Guangdong Province, China
  • About author:Li Jie-ruo, Master, Attending physician, Department of Orthopedics, the First Affiliated Hospital of Jinan University, Guangzhou 510630, Guangdong Province, China; Orthopedic Research Institute of Jinan University, Guangzhou 510630, Guangdong Province, China
  • Supported by:

    the Medical Science and Technology Research Fund of Guangdong Province, No. B2011160; the Scientific Research Fund of the First Clinical College of Jinan University, No. 2013212

摘要:

背景:前列腺素E2不仅是参与机体炎症反应的炎性递质,而且在骨组织形成与改建过程中起着非常重要的调节作用,且前列腺素E2在其他干细胞如神经干细胞、胚胎干细胞的增殖分化中,也表现出类似的调节作用。
目的:研究前列腺素E2对骨髓间充质干细胞增殖与骨向分化的影响,检测其促增殖和成骨分化的最佳剂量,筛选出前列腺素E2的效应基因,评价前列腺素E2诱导成骨的作用机制。
方法:提取SD大鼠骨髓间充质干细胞并鉴定,配制10-2,10-3,10-4 ,10-5,10-6 g/L不同质量浓度的前列腺素E2溶液,分别与第3代骨髓间充质干细胞共培养,空白组为含体积分数10%胎牛血清的L-DMEM。MTT比色法及碱性磷酸酶定量检测,筛选出前列腺素E2促骨髓间充质干细胞增殖及成骨分化的最佳剂量。利用基因芯片筛选出最佳成骨诱导浓度前列腺素E2诱导后14 d的骨髓间充质干细胞与未诱导组的差异表达基因。
结果与结论:不同质量浓度前列腺素E2诱导实验数据进行统计学分析后发现前列腺素E2最佳促骨髓间充质干细胞增殖浓度为1×10-4 g/L,前列腺素E2最佳促骨髓间充质干细胞成骨分化浓度为1×10-5 g/L。基因芯片筛选发现Cxcl13、Cd55基因及 PPAR、MAPK信号通路可能与前列腺素E2促骨髓间充质干细胞向成骨分化关系密切。


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


全文链接:

关键词: 干细胞, 骨髓干细胞, 前列腺素E2, 骨髓间充质干细胞, 多向分化, 成骨分化, 最佳剂量, 基因芯片

Abstract:

BACKGROUND: Prostaglandin E2 is not only involved in the body’s inflammatory response as an inflammatory mediator, but also plays a very important role in the process of bone formation and remodeling. In addition, prostaglandin E2 also regulates the proliferation and differentiation of other stem cells, such as neural stem cells and embryonic stem cells.
OBJECTIVE: To observe the effects of prostaglandin E2 on proliferation and osteogenic differentiation of bone marrow mesenchymal stem cells and to confirm the best concentration of prostaglandin E2, then to screen differentially expressed genes by gene chip technology, and to study the mechanism of prostaglandin E2 in the osteoinductive process of bone marrow mesenchymal stem cells.
METHODS: Bone marrow mesenchymal stem cells were isolated and cultured from Sprague-Dawley rats, and prostaglandin E2 was prepared to different concentrations of solutions: 10-2, 10-3, 10-4, 10-5 and 10-6 g/L. Then, passage 3 cells were cultured in prostaglandin E2 solutions, and low-glucose Dulbecco’s modified Eagle’s medium containing 10% fetal bovine serum. MTT colorimetric assay and quantitative detection of alkaline phosphatase were used to confirm the best concentration of prostaglandin E2 promoting proliferation and osteogenic differentiation of bone marrow mesenchymal stem cells. After 14 days, the gene-chip technique was used to detect the differentially expressed genes.
RESULTS AND CONCLUSION: The experimental data were statistically analyzed, we found that the best concentration of prostaglandin E2 for the proliferation of bone marrow mesenchymal stem cells was 1×10-4 g/L, and the best concentration of prostaglandin E2 for the osteogenic differentiation of bone marrow mesenchymal stem cells was 1×10-5 g/L. According to the gene chip, Cxcl13, Cd55 gene and PPAR, MAPK signaling pathways might be the key genes and pathways in the osteogenic differentiation process of bone marrow mesenchymal stem cells.


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


全文链接:

Key words: stem cells, bone marrow, mesenchymal stem cells, prostaglandins E, electrophoresis, microchip

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