中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (17): 2625-2629.doi: 10.3969/j.issn.2095-4344.3202

• 骨组织构建 bone tissue construction •    下一篇

胸椎黄韧带骨化患者的差异蛋白组学研究

胡万东,何佳林,张隆盛,廖文波   

  1. 遵义医科大学附属医院脊柱外科,贵州省遵义市   563000
  • 收稿日期:2020-08-15 修回日期:2020-08-18 接受日期:2020-10-16 出版日期:2021-06-18 发布日期:2021-01-07
  • 通讯作者: 廖文波,博士,教授,遵义医科大学附属医院脊柱外科,贵州省遵义市 563000
  • 作者简介:胡万东,男,1990年生,贵州省务川县人,仡佬族,遵义医科大学在读硕士,主要从事组织工程和脊柱退行性变研究。
  • 基金资助:
    贵州省科学技术基金项目(黔科合J字[2007]2221),项目负责人:廖文波

Differential proteomics study of patients with sternal ossification of the ligamentum flavum

Hu Wandong, He Jialin, Zhang Longsheng, Liao Wenbo   

  1. Department of Spine Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou Province, China
  • Received:2020-08-15 Revised:2020-08-18 Accepted:2020-10-16 Online:2021-06-18 Published:2021-01-07
  • Contact: Liao Wenbo, MD, Professor, Department of Spine Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou Province, China
  • About author:Hu Wandong, Master candidate, Department of Spine Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou Province, China
  • Supported by:
    the Science and Technology Foundation of Guizhou Province, No. [2007]2221 (to LWB)

摘要:

文题释义:
黄韧带骨化:是脊柱韧带的一种病理性异位骨化性疾病,由纤维组织转化成骨性组织的过程。有黄韧带附着的脊柱部位均可发生,其中尤以T10-T12发病率最高。
生物信息学:是生物学、计算机科学、信息工程、数学和统计学的综合学科,主要内容是使用生物算法和相关的软件工具采集、处理、存储、分析和解释生物数据。其研究重点主要体现在基因组学(Genomics)和蛋白质组学(Proteomics)两方面,具体说就是从核酸和蛋白质序列出发,分析序列中表达的结构功能的生物信息。生物信息学已成为许多生物学领域研究的重要组成部分。

背景:针对胸椎黄韧带骨化发病原因及机制研究主要集中在功能基因组的研究,而从蛋白组学对其进行研究者甚少。
目的:探讨胸椎黄韧带骨化患者骨化黄韧带与正常黄韧带组织差异蛋白质,寻找发病相关靶点蛋白。
方法:收集3例胸椎黄韧带骨化患者的骨化黄韧带和相邻水平正常黄韧带组织,通过蛋白质提取、定量、同位素标记相对和绝对定量TMT技术标记肽段,运用液相色谱 - 串联质谱(LC-MS/MS)技术鉴定及筛选差异蛋白质。
结果与结论:①共鉴定出差异表达蛋白质589种,其中表达上调蛋白质532种,表达下调蛋白质57种;②进一步分析鉴定出与炎性相关蛋白质共23种,其中蛋白CYBB、PODXL、S100A12、LXN、S100A10、GJA1、LIPA、FOLR2、CYBA、IFI16、ABCF1、HMGB1、RPS19、PRDX5、MAP2K3表达上调,蛋白KRT14、IL17D、IL1RAP、SLC7A2、RHOB、COMP、KRT6B表达下调;③这些炎性相关蛋白可能是参与胸椎黄韧带骨化疾病发生发展的靶点蛋白,尤其S100A10、FOLR2、S100A12、HMGB1这4种炎性相关蛋白在胸椎黄韧带骨化疾病发生发展中可能起重要作用,成为诊治的重要靶点。

关键词: 黄韧带, 骨化, 蛋白质组学, 组织, TMT技术

Abstract: BACKGROUND: The research on the pathogenesis and mechanism of thoracic ossification of the ligamentum flavum mainly focuses on the research of functional genome; however, less is reported on it from proteomics.
OBJECTIVE: To investigate the differential proteins between ossified ligamentum flavum and normal ligamentum flavum in patients with thoracic ossification of the ligamentum flavum, and to search for disease-related target proteins.
METHODS: Ossified ligamentum flavum and adjacent normal ligamentum flavum samples were collected from three patients with thoracic ossification of the ligamentum flavum, and detected through protein extraction, quantification, isotope labeling for relative and absolute quantitative technique-labeled peptides. Differentially expressed proteins were identified and screened by liquid chromatography-tandem mass spectrometry.
RESULTS AND CONCLUSION: Totally 589 kinds of differentially expressed proteins were identified, including 532 up-regulated proteins and 57 down-regulated proteins. Further analysis identified 23 kinds of proteins related to inflammation, among which, the expression of CYBB, PODXL, S100A12, LXN, S100A10, GJA1, LIPA, FOLR2, CYBA, IFI16, ABCF1, HMGB1, RPS19, PRDX5, MAP2K3 was up-regulated, and the expression of KRT14, IL17D, IL1RAP, SLC7A2, RHOB, COMP, KRT6B was down-regulated. These inflammation-related proteins may be important diagnostic and therapeutic targets  involved in the occurrence and development of thoracic ossification of the ligamentum flavum.

Key words: ligamentum flavum, ossification, proteomics, tissue, TMT technology

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