中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (49): 7891-7896.doi: 10.3969/j.issn.2095-4344.2014.49.004

• 器官移植动物模型 organ transplantation and animal model • 上一篇    下一篇

急性脊髓损伤模型大鼠蛋白质组学研究:iTRAQ技术的验证

白晶晶1,王 翀1,丁俐文1,宋兴华1,陈江涛1,周义军2,徐磊磊1   

  1. 1新疆医科大学第一附属医院,新疆医科大学研究生学院,新疆医科大学,新疆维吾尔自治区乌鲁木齐市 830054;2湖南省常德市第一人民医院,湖南省常德市 415900
  • 修回日期:2014-08-30 出版日期:2014-11-30 发布日期:2014-11-30
  • 通讯作者: 宋兴华,博士,博士生导师,新疆医科大学第一附属医院,新疆维吾尔自治区乌鲁木齐市 830054
  • 作者简介:白晶晶,男,汉族,新疆医科大学在读硕士,主要从事脊柱、骨肿瘤、软组织肿瘤及骨病的研究。
  • 基金资助:

    国家自然科学基金(81160218/H0605),课题名称:不同时间点鞘内注射甲基强的松龙治疗大鼠急性脊髓损伤的蛋白组学实验研究

The study of proteomics in acute spinal cord injury rats by iTRAQ technology  

Bai Jing-jing1, Wang Chong1, Ding Li-wen1, Song Xing-hua1, Chen Jiang-tao1, Zhou Yi-jun2, Xu Lei-lei1   

  1. 1The First Affiliated Hospital of Xinjiang Medical University, Postgraduate College of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China; 2The First People’s Hospital of Changde, Changde 415900, Hunan Province, China
  • Revised:2014-08-30 Online:2014-11-30 Published:2014-11-30
  • Contact: Song Xing-hua, M.D., Doctoral supervisor, the First Affiliated Hospital of Xinjiang Medical University, Postgraduate College of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • About author:Bai Jing-jing, Studying for master’s degree, the First Affiliated Hospital of Xinjiang Medical University, Postgraduate College of Xinjiang Medical University, Urumqi 830054, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81160218/H0605

     

摘要:

背景:同位素标记相对和绝对定量(Isobaric tags for relative and absolute quantitation,iTRAQ)质谱分析技术依据串联质谱中信号离子表达质荷比峰值的不同来研究相关对应蛋白质的信息。

目的:建立急性脊髓损大鼠模型,观察其脑脊液差异蛋白谱,从微观分子水平研究急性脊髓损伤后继发性损伤的机制及有效治疗方法。
方法:建立SD大鼠急性脊髓损伤模型,取脑脊液应用iTRAQ技术鉴定SD大鼠急性脊髓损伤后脑脊液的差异蛋白质。

结果与结论:共鉴定蛋白数722个,差异表达蛋白 107 个:下调的差异蛋白有 63 个,上调的差异蛋白数是 44 个。其中相关神经再生的差异蛋白19个:上调14个,下调5个;调节神经再生的差异蛋白7个。实验中检测到的多种差异蛋白及表达明显的神经再生因子可能作为急性脊髓损伤的生物标记物或可能作为临床管理监测急性脊髓损伤的损伤进程、靶向治疗及评估疗效的强有力证据。



中国组织工程研究
杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程


全文链接:

关键词: 实验动物, 组织工程, 急性脊髓损伤, 脑脊液, 神经再生, 蛋白质组学研究, 组织工程, iTRAQ

Abstract:

BACKGROUND: Isobaric tags for relative and absolute quantitation (iTRAQ) mass spectrometry technology studys the information of relevant protein according to the ion signal shows different mass-to-charge ratio in the tandem mass spectrometry analysis.

OBJECTIVE: To establish the protein spectrum of differential proteins in cerebrospinal fluid of acute spinal cord injury rat model, study the secondary injury mechanism and find an effective method of treating acute spinal cord injury from molecular level.
METHODS: Acute spinal cord injury was produced in Sprague-Dawley rats and iTRAQ technology was applied to analyze the differential proteins in cerebrospinal fluid of acute spinal cord injury rat model.
RESULTS AND CONCLUSION: Total 722 proteins have been identified in this study, including 107 differentially expressed proteins, 63 downregulated proteins and 44 upregulated proteins. There were 19 proteins related to neurogenesis, including 14 up-regulation proteins and 5 down-regulation proteins. Seven proteins contributed to the regulation of neurogenesis. The differential proteins and growth factor identified in this study can be taken as the biomarkers of acute spinal cord injury or indicators of clinical monitoring of the progression, target treatment and efficacy assessment after acute spinal cord injury.


中国组织工程研究
杂志出版内容重点:肾移植肝移植移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植组织工程


全文链接:

Key words: spinal cord injuries, cerebrospinal fluid, proteomics, isotope labeling

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