中国组织工程研究 ›› 2023, Vol. 27 ›› Issue (29): 4664-4669.doi: 10.12307/2023.662

• 骨与关节图像与影像 bone and joint imaging • 上一篇    下一篇

同位素标记相对和绝对定量评价非创伤性股骨头坏死患者的血清蛋白组学分析

张恩景,蔡进奎,许海甲,李天航,李章华   

  1. 武汉市第三医院(武汉大学同仁医院),湖北省武汉市   430060
  • 收稿日期:2022-08-09 接受日期:2022-09-22 出版日期:2023-10-18 发布日期:2022-12-02
  • 通讯作者: 李章华,博士,主任医师,博士生导师,武汉市第三医院(武汉大学同仁医院),湖北省武汉市 430060
  • 作者简介:张恩景,1975年生,湖北省恩施市人,汉族,2009年湖北中医药大学毕业,硕士,副主任药师,主要从事医院临床药学及研究。
  • 基金资助:
    武汉市卫生健康委员会资助项目(2019WZ19Z35),项目负责人:张恩景

Serum proteomics based on isobaric tags for relative and absolute quantitation technology in patients with nontraumatic osteonecrosis of the femoral head

Zhang Enjing, Cai Jinkui, Xu Haijia, Li Tianhang, Li Zhanghua   

  1. Wuhan Third Hospital (Tongren Hospital of Wuhan University), Wuhan 430060, Hubei Province, China
  • Received:2022-08-09 Accepted:2022-09-22 Online:2023-10-18 Published:2022-12-02
  • Contact: Li Zhanghua, MD, Chief physician, Doctoral supervisor, Wuhan Third Hospital (Tongren Hospital of Wuhan University), Wuhan 430060, Hubei Province, China
  • About author:Zhang Enjing, Master, Associate chief pharmacist, Wuhan Third Hospital (Tongren Hospital of Wuhan University), Wuhan 430060, Hubei Province, China
  • Supported by:
    A Grant from the Wuhan Municipal Health Commission, No. 2019WZ19Z35 (to ZEj)

摘要:


文题释义:

iTRAQ技术:是由AB SCIEX公司研发的一种基于体外等重同位素标记的相对与绝对定量技术。该技术利用4种或8种同位素试剂标记多肽末端氨基或赖氨酸侧链氨基基团,经高分辨质谱仪串联分析,可同时比较多达8种样品之间的蛋白质表达量,是近年来定量蛋白质组学常用的高通量筛选技术。

背景:非创伤性股骨头坏死是一类以髋关节疼痛、功能障碍进行性加重为主要症状的疾病,严重危害人体健康。它的发病机制、早期诊断和治疗仍是临床骨科医生所面临的重大挑战。
目的:采用同位素标记相对和绝对定量(isobaric tags for relative and absolute quantitation,iTRAQ)技术,用蛋白质组学筛选可能与非创伤性股骨头坏死相关的关键蛋白。通过分析这些蛋白的表达特性及潜在的生物学功能,为进一步研究非创伤性股骨头坏死病因及分子机制奠定基础。
方法:提取非创伤性股骨头坏死患者和健康人血清蛋白,应用iTRAQ技术标记蛋白,联合液相色谱和串联质谱分离和分析肽段。采用Proteome Discoverer 2.1软件对两组人群蛋白进行鉴定和定量分析,获得差异蛋白,再对这些表达差异蛋白进行GO注释、KEGG通路注释和功能富集聚类分析。
结果与结论:①质谱鉴定共得到1 006个蛋白,通过分析得到137个差异表达蛋白,其中54个蛋白表达上调,83个蛋白表达下调;②与非创伤性股骨头坏死发生相关的表达差异显著的蛋白质包括载脂蛋白B(ApoB)、载脂蛋白A2(ApoA2)、载脂蛋白E(ApoE)、补体C4和C7等;③KEGG信号通路富集分析结果显示,关键靶点的主要信号通路为p53信号通路、转录生长因子 β信号通路、扩张型心肌病信号通路;④该结果提示,载脂蛋白与非创伤性股骨头坏死发生密切相关,并发现了与非创伤性股骨头坏死相关的活跃信号通路,为非创伤性股骨头坏死发生及分子机制奠定一定的实验基础。
https://orcid.org/0000-0002-6743-399X (张恩景);https://orcid.org/0000-0002-9919-8111 (李章华) 

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

关键词: 非创伤性股骨头坏死, 同位素标记相对和绝对定量蛋白质组学技术, 质谱, 蛋白质差异表达

Abstract: BACKGROUND: Nontraumatic osteonecrosis of the femoral head is a group of diseases characterized by progressive worsening of hip pain and dysfunction, which seriously endangers human health. Its pathogenesis, early diagnosis and treatment remain a major challenge for clinical orthopedic surgeons.  
OBJECTIVE: Using isobaric tags for relative and absolute quantitation technology, proteomics was used to screen key proteins that may be associated with nontraumatic osteonecrosis of the femoral head. Analysis of the expression characteristics and potential biological functions of these proteins laid the foundation for further research on the etiology and molecular mechanisms of nontraumatic osteonecrosis of the femoral head.
METHODS: Serum proteins were extracted from nontraumatic osteonecrosis of the femoral head patients and healthy humans, and then labeled using isobaric tags for relative and absolute quantitation technology. Liquid chromatography combined with tandem mass spectrometry was performed to separate and analyze the peptides. Differentially expressed proteins were obtained through identifying and quantifying the proteins using Proteome Discoverer 2.1 software and analyzed via GO annotation, KEGG pathway annotation, and functional enrichment clustering analysis.  
RESULTS AND CONCLUSION: (1) A total of 137 differentially expressed proteins were obtained from 1 006 proteins identified by mass spectrometry, of which the expression of 54 and 83 proteins was up-regulated and down-regulated, respectively. (2) The differentially expressed proteins associated with the development of nontraumatic osteonecrosis of the femoral head included apolipoprotein B, apolipoprotein A2, apolipoprotein E, complement C4 and C7, etc. (3) The analysis results of KEGG signaling pathway enrichment showed that the major signaling pathways of key targets comprised p53 signaling pathway, transcriptional growth factor β signaling pathway, and dilated cardiomyopathy signaling pathway. It is concluded that apolipoproteins were closely related to nontraumatic osteonecrosis of the femoral head. This study provides insight into the molecular mechanisms underlying nontraumatic osteonecrosis of the femoral head.

Key words: nontraumatic osteonecrosis of the femoral head, isobaric tags for relative and absolute quantitation, mass spectrometry, differentially expressed protein

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