中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (31): 4921-4925.doi: 10.3969/j.issn.2095-4344.0382

• 人工假体 artificial prosthesis •    下一篇

绝经后骨质疏松髋关节置换者骨组织中组蛋白去甲基化酶JMJD2和雌激素受体的表达

郭 承1,唐宏宇2,3,霍少川1,周 驰2,董路珏1,陈建发2,刘 勇1,王海彬2,3   

  1. 1广州中医药大学,广东省广州市 510405;2广州中医药大学第一附属医院骨科中心,广东省广州市 510405;3广州中医药大学国家重点骨科实验室,广东省广州市 510405
  • 出版日期:2018-11-08 发布日期:2018-11-08
  • 通讯作者: 王海彬,博士,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中心,广东省广州市 510405;广州中医药大学国家重点骨科实验室,广东省广州市 510405
  • 作者简介:郭承,男,1988年生,河南省商丘市人,汉族,硕士,主要从事骨质疏松、股骨头坏死等骨科疾病的研究。
  • 基金资助:

    国家自然科学基金(81373655);广东省省级科技计划项目(2013B021800226)

Expression of histone demethylase jumonji domain-containing protein 2 and estrogen receptor in bones of postmenopausal osteoporosis patients undergoing hip arthroplasty  

Guo Cheng1, Tang Hong-yu2, 3, Huo Shao-chuan1, Zhou Chi2, Dong Lu-jue1, Chen Jian-fa2, Liu Yong1, Wang Hai-bin2, 3   

  1. 1Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China; 2Orthopedics Center, the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China; 3the National Key Research Laboratory of Orthopedics, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
  • Online:2018-11-08 Published:2018-11-08
  • Contact: Wang Hai-bin, M.D., Chief physician, Professor, Doctoral supervisor, Orthopedics Center, the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China; the National Key Research Laboratory of Orthopedics, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
  • About author:Guo Cheng, Master, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81373655; the Guangdong Provincial Science and Technology Program, No. 2013B021800226

摘要:

文章快速阅读:

 
 
文题释义:
组蛋白去甲基化酶JMJD2蛋白家族:JMJD2蛋白家族的蛋白质序列中含有组蛋白去甲基化酶标志性结构域Jumonji C(JmjC),该结构域通过氧化反应能催化单、双和三甲基化的赖氨酸残基的去甲基化,从而发挥生物学功能,包含JMJD2A、JMJD2B、JMJD2C、JMJD2D等多个成员。
雌激素受体:雌激素通过骨细胞上的雌激素受体介导调节骨代谢,其受体分为ERα与ERβ两种亚型,都属于核受体类转录因子,主要功能是调控靶基因表达。
 
摘要
背景:研究发现组蛋白去甲基化酶具有促进成骨细胞分化的作用,然而绝经后骨质疏松症组蛋白去甲基化酶表达以及与雌激素受体的相关性未见报道。
目的:观察绝经后骨质疏松症患者组蛋白去甲基化酶JMJD2家族的表达变化,以及与雌激素受体的相关性。
方法:选择年龄50-70 岁因髋关节骨性关节炎行髋关节置换的绝经后患者30例,通过检测股骨颈骨密度,分为绝经后骨质疏松组15例(实验组)和骨量正常组15例(对照组),术中收集股骨颈松质骨标本,荧光实时定量PCR、Western blot法检测骨组织中组蛋白去甲基化酶(JMJD2A、JMJD2B)和雌激素受体(ERα、ERβ)的表达水平 。
结果与结论:绝经后骨质疏松组JMJD2A、JMJD2B、ERα和ERβ表达水平均低于骨量正常组,组间差异有显著性意义(P 均< 0.01);相关性分析显示JMJD2A、JMJD2B的表达与ERα和ERβ表达均呈显著正相关(P 均< 0.01)。结果表明,绝经后骨质疏松症患者骨组织中JMJD2A、JMJD2B基因和蛋白表达均降低,JMJD2A、JMJD2B的低表达与雌激素受体表达降低密切相关;组蛋白去甲基化酶JMJD2可能参与了绝经后骨质疏松症的发病机制。

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程
ORCID: 0000-0001-9911-0346(郭承)

关键词: 绝经后骨质疏松症, 表观遗传学, 组蛋白去甲基化酶JMJD2, 雌激素受体, 聚合酶链式反应, 蛋白质印迹, 国家自然科学基金

Abstract:

BACKGROUND: Histone demethylase has been shown to promote osteoblast differentiation. However, little is reported on the association between postmenopausal osteoporosis and histone demethylase and estrogen receptor.

OBJECTIVE: To study the changes in the histone demethylase jumonji domain-containing protein 2 (JMJD2) family expression in patients with postmenopausal osteoporosis, and its correlation with estrogen receptor.
METHODS: Postmenopausal patients with hip osteoarthritis undergoing total hip arthroplasty, aged 50-70 years, were enrolled, including 15 postmenopausal osteoporosis patients (experimental group) and 15 patients with no postmenopausal osteoporosis (control group). During the arthroplasty, the cancellous bone specimens from the femoral neck were collected. Then, the expression levels of JMJD2A, JMJD2B, estrogen receptor α and estrogen receptor β were detected by real-time quantitative PCR, and western blot assay.
RESULTS AND CONCLUSION: Compared with the control group, the relative expression of JMJD2A, JMJD2B, estrogen receptor α and estrogen receptor β in the experimental group were significantly decreased (P < 0.01). JMJD2A and JMJD2B were positively correlated with estrogen receptor α and estrogen receptor β (P < 0.01). These findings indicate that there is a decrease in the expression levels of JMJD2A and JMJD2B in postmenopausal osteoporosis patients. The decreased JMJD2A and JMJD2B expression is closely related to the decrease of estrogen receptor α and estrogen receptor β. Thereafter, JMJD2 may be involved in the pathogenesis of postmenopausal osteoporosis.

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

Key words: Osteoporosis, Postmenopausal, Histone Demethylases, Receptors, Estrogen, Tissue Engineering

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