首页> 中文期刊> 《中国病理生理杂志》 >英夫利西单抗治疗克罗恩病黏膜愈合的血清差异蛋白质表达研究

英夫利西单抗治疗克罗恩病黏膜愈合的血清差异蛋白质表达研究

         

摘要

AIM:To identify the serum proteins that might serve as biomarkers for predicting mucosal healing ( MH) in the patients with Crohn’ s disease ( CD) treated with infliximab ( IFX) .METHODS:We collected serum sam-ples before treatment (0 week, group A) and 14 weeks after treatment (group B) from 7 CD patients with IFX treatment who had achieved MH, as well as the serum samples from 7 CD patients who had not achieved MH (0 week, group C;14 weeks, group D) .Two-dimensional fluorescence difference gel electrophoresis was applied to analyze and compare the re-sults of serum profiles between groups A and B, C and D, A and C, B and D.Matrix-assisted laser desorption/ionization time-of-flight tandem mass spectrometry and bioinformatics tools were utilized to preliminarily identify and figure out the dif-ferentially expressed proteins.RESULTS:(1) In total, there were 44 differentially expressed spots, 36, 3, 10 and 31 differentially expressed spots were detected while comparing A with B, C with D, A with C and B with D, respectively. (2) Among those spots, 17, 2, 2 and 15 proteins were identified, respectively.In total, there were 19 differentially ex-pressed proteins, including apolipoprotein E, apolipoprotein A-I, complement factor H, and so on.(3) Protein functional association networks were carried out based on STRING database.CONCLUSION: The serum protein profiles obviously change after IFX treatment in MH CD patients, and the serum protein profiles of MH patients are different from that of non-MH patients after IFX treatment.The 19 proteins we identified may serve as potential biomarkers for predicting MH in CD patients with IFX treatment.%目的:寻找与英夫利西单抗(infliximab,IFX)治疗克罗恩病(Crohn’s disease,CD)黏膜愈合(muco-sal healing,MH)相关的血清蛋白质生物标志物。方法:采集7例经IFX治疗获得MH的CD患者治疗前(0周,A组)和治疗后(14周,B组)的血清,以及7例未获得MH的CD患者(0周为C组,14周为D组)的血清。采用荧光标记双向差异凝胶电泳的方法,比较A组与B组之间、C组与D组之间、A组与C组之间以及B组与D组之间的蛋白质组学差异,并对差异表达的蛋白质斑点进行基质辅助激光解吸/电离飞行时间串联质谱初步鉴定和生物信息学分析。结果:(1)A组与B组、C组与D组、A组与C组以及B组与D组之间比较分别存在36、3、10和31个差异表达的蛋白质斑点,共计存在44个显著差异表达的蛋白质斑点。(2)上述各组之间的差异斑点分别初步鉴定出17、2、2和15种蛋白质,共计存在19种差异表达的蛋白质,包括载脂蛋白E、载脂蛋白A-I、补体因子H等。(3)基于STRING数据库绘制了蛋白质网状功能图。结论:IFX治疗获得MH的CD患者治疗前后的血清蛋白质表达谱存在差异,获得MH和未获得MH的患者血清表达谱亦存在差异,其中19种蛋白质有可能成为预测CD患者使用IFX获得MH的生物标志物。

著录项

  • 来源
    《中国病理生理杂志》 |2015年第5期|894-899|共6页
  • 作者单位

    中山大学 附属第一医院消化内科;

    广东广州510080;

    中山大学 附属第一医院消化内科;

    广东广州510080;

    中山大学 蛋白质组学转化医学广东普通高校重点实验室;

    广东广州510080;

    中山大学 附属第一医院消化内科;

    广东广州510080;

    中山大学 附属第一医院消化内科;

    广东广州510080;

    中山大学 蛋白质组学转化医学广东普通高校重点实验室;

    广东广州510080;

    中山大学 附属第一医院消化内科;

    广东广州510080;

    中山大学 附属第一医院消化内科;

    广东广州510080;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 肠疾病;
  • 关键词

    克罗恩病; 英夫利西; 蛋白质组学; 黏膜愈合; 血清;

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