中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (36): 5758-5763.doi: 10.3969/j.issn.2095-4344.2015.36.004

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

芳香化酶和雌激素相关受体在人骨髓间充质干细胞中的表达

魏秋实1,2,陈镇秋1,3,何 伟1,3,邓伟民2,王海彬1,3,黄世金3,郭 承3   

  1. 1广州中医药大学第一附属医院骨科,广东省广州市  510407; 2解放军广州军区广州总医院康复科博士后科研工作站,广东省广州市  510010; 3广州中医药大学国家重点学科中医骨伤科实验室,广东省广州市  510405
  • 出版日期:2015-09-03 发布日期:2015-09-03
  • 通讯作者: 何伟,主任医师,教授,博士生导师,广州中医药大学第一附属医院骨科,广东省广州市 510407;广州中医药大学国家重点学科中医骨伤科实验室,广东省广州市 510405
  • 作者简介:魏秋实,男,1982年生,辽宁省沈阳市人,蒙古族,2012年广州中医药大学毕业,博士,博士后,主要从事股骨头坏死和骨质疏松症发病机制方面的研究。
  • 基金资助:

    国家自然科学基金青年科学基金项目(81302994) 《补肾药通过TAZ与经典Wnt通路crosstalk调控肾虚型骨髓基质干细胞成骨能力的机制》;国家自然科学基金面上项目(81473697) 《不同证型股骨头坏死与MRI、病理及分子分型相互关系的探讨研究》;广东省自然科学基金博士启动项目(S2013040014927) 《补肾药靶向TAZ/β-catenin调控肾虚型BMSCs成骨分化的实验研究》

     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

Expression of aromatase and estrogen-related receptors in human bone marrow mesenchymal stem cells

Wei Qiu-shi1, 2, Chen Zhen-qiu1, 3, He Wei1, 3, Deng Wei-min2, Wang Hai-bin1, 3, Huang Shi-jin3, Guo Cheng3   

  1. 1Department of Orthopedics, First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou 510407, Guangdong Province, China; 2Postdoctoral Station of Rehabilitation Department, General Hospital of Guangzhou Military Command of Chinese PLA, Guangzhou 510010, Guangdong Province, China; 3Key Laboratory of Osteology and Traumatology of TCM, National Key Disciplines, Guangzhou University of Traditional Chinese Medicine, Guangzhou 510405, Guangdong Province, China 
  • Online:2015-09-03 Published:2015-09-03
  • Contact: He Wei, Chief physician, Professor, Doctoral supervisor, Department of Orthopedics, First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou 510407, Guangdong Province, China; Key Laboratory of Osteology and Traumatology of TCM, National Key Disciplines, Guangzhou University of Traditional Chinese Medicine, Guangzhou 510405, Guangdong Province, China
  • About author:Wei Qiu-shi, M.D., Department of Orthopedics, First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou 510407, Guangdong Province, China; Postdoctoral Station of Rehabilitation Department, General Hospital of Guangzhou Military Command of Chinese PLA, Guangzhou 510010, Guangdong Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81302994 and 81473697; the Natural Science Foundation of Guangdong Province, No. S2013040014927

     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

摘要:

背景:骨髓间充质干细胞中可能存在芳香化酶和雌激素受体相互作用的雌激素信号途径,调控骨髓间充质干细胞生物活性。

目的:观察成人骨髓间充质干细胞成骨诱导分化过程中芳香化酶和雌激素相关受体的表达。

方法:将骨髓间充质干细胞分为单纯培养组和成骨诱导组,分别用低糖DMEM完全培养基和成骨诱导分化完全培养基培养,MTT检测细胞增殖能力,茜素红染色观察成骨矿化能力,qPCR和Western blot检测芳香化酶、雌激素受体α、雌激素受体β和雌激素受体相关受体α mRNA和蛋白表达,ELISA检测细胞上清液和裂解液中雌二醇水平。

结果与结论:培养72 h,成骨诱导组增殖能力最强;培养21 d,成骨诱导组茜素红染色显示大量钙沉积;qPCR和Western blot结果显示成骨诱导组能促进芳香化酶和雌激素受体α mRNA和蛋白表达,抑制雌激素受体相关受体α mRNA和蛋白表达,成骨诱导组雌激素受体β mRNA和蛋白表达与单纯培养组无差异;ELISA结果显示成骨诱导组上清液中雌二醇水平高于裂解液及单纯培养组上清液中雌二醇水平。结果表明成人骨髓间充质干细胞及成骨诱导分化后能表达芳香化酶、雌激素受体α、雌激素受体β和雌激素受体相关受体α,亦能自身合成和分泌雌激素,由此产生的雌激素可能是通过相关受体对骨髓间充质干细胞成骨分化发挥作用。

关键词: 干细胞, 骨髓干细胞, 芳香化酶, 骨髓间充质干细胞, 成骨诱导分化, 雌激素受体, 雌激素相关受体, 骨代谢疾病, 国家自然科学基金

Abstract:

BACKGROUND: Estrogen signaling pathway for interaction between aromatase and estrogen-related receptor may exist in bone marrow mesenchymal stem cells, which is used for regulating biological activity of bone marrow mesenchymal stem cells.

OBJECTIVE: To observe the expression of aromatase and estrogen-related receptors in adult bone marrow mesenchymal stem cells during osteogenic differentiation.

METHODS: Bone marrow mesenchymal stem cells were respectively cultured in low-glucose DMEM medium (control group) and osteogenic induction medium (induction group). Cell proliferation and calcium deposition were determined by MTT assay and alizarin red staining, respectively. The expression of aromatase, estrogen receptor α, estrogen receptor β, and estrogen-related receptor α during osteogenic differentiation were determined by real-time PCR and western blot analysis. Estradiol levels in supernatants and lysates were detected by ELISA method.

RESULTS AND CONCLUSION: In the induction group, the proliferation ability of bone marrow mesenchymal stem cells was the strongest at 72 hours of culture; while there were a great amount of calcium nodules formed at 21 days of culture. Results from PCR and western blot assay showed that the expression of aromatase and estrogen receptor α was improved in the induction group, but the expression of estrogen-related receptor α was inhibited. There was no difference in the expression of estrogen receptor β between the two groups. ELISA results indicated that the level of estradiol in the supernatant of induction group was the highest. These findings indicate that aromatase, estrogen receptor α, estrogen receptor β and estrogen-related receptor α are all involved in osteogenesis of bone marrow mesenchymal stem cells. Moreover, estradiol can be synthesized and secreted in bone marrow mesenchymal stem cells, and most likely, promote the osteogenic differentiation of bone marrow mesenchymal stem cells by related receptor pathway.

 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: Bone Marrow, Mesenchymal Stem Cells, Receptors, Estrogen, Cell Differentiation

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