口腔医学研究 ›› 2016, Vol. 32 ›› Issue (9): 912-915.DOI: 10.13701/j.cnki.kqyxyj.2016.09.005

• 基础研究论著 • 上一篇    下一篇

银杏叶提取物诱导骨髓间充质干细胞成骨分化过程中P38信号通路的研究

时舒曼1,袁浩天2,张晓晓1,吴哲1,3*   

  1. 1. 吉林大学口腔医学院修复科 吉林 长春 130021;
    2. 中国人民解放军208医院 吉林 长春 130000;
    3. 广州医科大学附属口腔医院 广东 广州 510500
  • 收稿日期:2016-01-07 出版日期:2016-09-26 发布日期:2016-09-26
  • 通讯作者: 吴哲,E-mail:1378725107@qq.com
  • 作者简介:时舒曼(1991~ ),女,河南省许昌市人,硕士,主要从事口腔修复学研究。
  • 基金资助:
    吉林省产业技术研究与开发项目(编号:2013C023-5)

Ginkgo Biloba Extract Promotes Osteogenic Differentiation of Rat Bone Marrow Mesenchymal Stem Cells in a Pathway Involving P38 MAPK Signaling Pathway

SHI Shu-man1, YUAN Hao-tian2, ZHANG Xiao-xiao1, WU Zhe1,3*   

  1. 1. Department of Prosthodontics, School of Stomatology, Jilin University, Changchun 130021, China;
    2. Chinese PLA 208 Hospital, Changchun130000, China;
    3. Stomatology School of Guangzhou Medical University, Guangzhou 510500, China
  • Received:2016-01-07 Online:2016-09-26 Published:2016-09-26

摘要: 目的:探讨银杏叶提取物(ginkgo biloba extract,GBE)促进大鼠骨髓间充质干细胞(bone marrow mesenchymal stem cells,BMSCs)成骨分化的机制。方法:将150 mg/L GBE作用于第3代大鼠BMSCs,抑制组使用P38丝裂原活化蛋白激酶(mitogen-activated protein kinase,MAPK)信号通路抑制剂SB203580预处理,通过茜素红(alizarin red S,ARS)染色、碱性磷酸酶(Alkalinet phosphatase,ALP)法以及RT-PCR等检测方法判定GBE是否通过上调P38信号通路促进大鼠BMSCs成骨分化。结果:与实验对照组大鼠相比,抑制组的大鼠BMSCs细胞外基质矿化减少,ALP表达明显下降,成骨相关基因ALP、BMP-2、OCN、Runx2(runt-related transcription factor2)的表达量亦明显降低。结论:GBE通过上调P38信号通路促进大鼠BMSCs成骨分化。

关键词: 银杏叶提取物, 骨髓间充质干细胞, P38MAPK信号通路, 成骨分化

Abstract: Objective: To reveal the mechanism of GBE promoting osteogenic differentiation of rat BMSCs. Methods: 150mg/L GBE was applied to the third generation of rat BMSCs, while the inhibitor group underwent a pretreatment of SB203580, which was the specific inhibitor of P38 MAPK signaling pathway. The results were evaluated by ARS dye, ALP activity assay and RT-PCR. Results: Statistically significant difference was found between the control group and the inhibitor group. In the inhibitor group, extracellular calcium deposition, ALP activity and the expression of osteogenic-related genes including ALP, BMP-2, OCN and Runx2 were lower than the control group. Conclusion: GBE promoted osteogenic differentiation of rat BMSCs by upregulating the P38 MAPK signaling pathway.

Key words: Ginkgo biloba extract, Bone marrow mesenchymal stem cells, P38 MAPK signaling pathway, Osteogenic differentiation

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