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中国临床药理学与治疗学 ›› 2019, Vol. 24 ›› Issue (11): 1269-1274.doi: 10.12092/j.issn.1009-2501.2019.11.009

• 基础研究 • 上一篇    下一篇

基于iTRAQ技术的脓毒症脑病的蛋白质组学研究

乔 阳, 陈 群, 杨 光, 曹迎亚, 鲁卫华   

  1. 皖南医学院弋矶山医院重症医学科,芜湖 241001, 安徽
  • 收稿日期:2018-12-14 修回日期:2019-03-22 出版日期:2019-11-26 发布日期:2019-12-02
  • 通讯作者: 鲁卫华,男,硕士,主任医师,研究方向:围术期脏器功能维护。 Tel:13955370637 E-mail:lwh683@126.com
  • 作者简介:乔阳,男,硕士,研究方向:脓毒症脏器功能维护。 Tel:15755392429 E-mail:1539302194@qq.com
  • 基金资助:

    安徽省公益性技术应用研究联动计划项目(1604f0804043);安徽省高校拔尖人才重点项目(gxbjZD19);安徽省学术和技术带头人后备人选科研活动经费资助项目(2017H145);皖南医学院中青年科研基金(WK2018F15)

iTRAQ technology based differences of protein expression in sepsis-associated encephalopathy

QIAO Yang, CHEN Qun, YANG Guang,CAO Yingya, LU Weihua   

  1. Department of Critical Care Medicine, Yijishan Hospital, Wannan Medical College, Wuhu 241001,Anhui, China
  • Received:2018-12-14 Revised:2019-03-22 Online:2019-11-26 Published:2019-12-02

摘要:

目的:应用同位素标记相对和绝对定量(iTRAQ)技术分析脓毒症大鼠脑皮质组织差异性蛋白的表达。方法:选取雄性Wistar大鼠30只随机分为脓毒症组(n=15)和对照组(n=15)。造模前3 d放置脑电监测电极,采用盲肠结扎穿孔术(CLP)制备大鼠脓毒症模型,造模48 h后处死大鼠,提取脑皮质蛋白,采用iTRAQ技术筛选出两组间差异蛋白,分析表达差异蛋白与脓毒症脑病之间的关系。结果:与对照组比较,脓毒症组大鼠脑组织共筛选出91个出现差异表达的蛋白。其中表达上调者68个,表达下调者23个。与凝血、细胞信号转导、物质运输、免疫反应、细胞物质能量代谢等方面的相关蛋白功能有关。结论:脓毒症大鼠脑组织出现一系列蛋白表达异常,用iTRAQ技术可快速分析。

关键词: 脓毒症, 脑, iTRAQ

Abstract:

AIM: To analyze the differential protein expression in brain tissue of septic rats by isobaric tags for relative and absolute quantification(iTRAQ) technology. METHODS: Thirty male Wistar rats were randomly divided into sepsis group and control group, with 15 rats in each group. The brain electrical monitoring electrode was placed 3 days before modeling, and the rat sepsis model was prepared by cecal ligation and puncture (CLP). After 48 hours of modeling, the protein was extracted, iTRAQ labeled, the differential protein was screened, and the difference was analyzed. The relationship between protein and sepsis was also analyzed. RESULTS:Compared with the control group, 91 proteins with differential expression were screened from the brain tissue of the sepsis group. Among them, 68 were up-regulated and 23 were down-regulated. It was related to the related gene functions such as stress response, cell signal transduction, glucocorticoid receptor, immune response, insulin-like growth factor, and cellular material energy metabolism. CONCLUSION: A series of abnormal protein expressions in brain tissue of septic rats can be quickly analyzed by iTRAQ technology.

Key words: sepsis, brain, iTRAQ

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