中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (36): 5818-5823.doi: 10.3969/j.issn.2095-4344.2017.36.014

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

猕猴急性脊髓全横断损伤血清的代谢组学分析

唐  涛1,程建华2,杨树广1,高  健1,黄  涛1,王  滨1,董芳霆2,刘少君1   

  1. 1军事医学科学院基础医学研究所神经生物学教研室,北京市  100850;2国家生物医学分析中心,北京市  100850
  • 收稿日期:2017-08-30 出版日期:2017-12-28 发布日期:2018-01-04
  • 通讯作者: 董芳霆,国家生物医学分析中心,北京市 100850 并列通讯作者:刘少君,军事医学科学院基础医学研究所神经生物学教研室,北京市 100850
  • 作者简介:唐涛,男,1978年生,辽宁省辽阳市人,汉族,2002年第一军医大学毕业,硕士,主治医师,主要从事脊髓损伤及脑胶质瘤方向的研究。
  • 基金资助:

    国家自然科学基金青年-面上连续资助项目(81370051)

Serum metabolomic profiling of acute complete spinal cord transection in macaques

Tang Tao1, Cheng Jian-hua2, Yang Shu-guang1, Gao Jian1, Huang Tao1, Wang Bin1, Dong Fang-ting2, Liu Shao-jun1   

  1. 1Department of Neurobiology, Beijing Institute of Basic Medical Sciences. Beijing 100850, China; 2National Center of Biomedical Analysis, Beijing 100850, China
  • Received:2017-08-30 Online:2017-12-28 Published:2018-01-04
  • Contact: Dong Fang-ting, National Center of Biomedical Analysis, Beijing 100850, China Corresponding author: Liu Shao-jun, Department of Neurobiology, Beijing Institute of Basic Medical Sciences. Beijing 100850, China
  • About author:Tang Tao, Master, Attending physician, Department of Neurobiology, Beijing Institute of Basic Medical Sciences, Beijing 100850, China
  • Supported by:

    the General Project of National Natural Science Youth Foundation, No. 81370051

摘要:

文章快速阅读:


文题释义:
代谢组学:是继基因组学和蛋白质组学之后新近发展起来的一门学科,是系统生物学的重要组成部分。之后得到迅速发展并渗透到多项领域,比如疾病诊断、医药研制开发、营养食品科学、毒理学、环境学,植物学等与人类健康护理密切相关的领域。基因组学和蛋白质组学分别从基因和蛋白质层面探寻生命的活动,而实际上细胞内许多生命活动是发生在代谢物层面的,如细胞信号释放(cell signaling),能量传递,细胞间通信等都是受代谢物调控的。代谢组学正是研究代谢组(metabolome)——在某一时刻细胞内所有代谢物的集合——的一门学科。
质谱法:即用电场和磁场将运动的离子(带电荷的原子、分子或分子碎片,有分子离子、同位素离子、碎片离子、重排离子、多电荷离子、亚稳离子、负离子和离子-分子相互作用产生的离子)按它们的质荷比分离后进行检测的方法。测出离子准确质量即可确定离子的化合物组成。这是由于核素的准确质量是一多位小数,决不会有两个核素的质量是一样的,而且决不会有一种核素的质量恰好是另一核素质量的整数倍。分析这些离子可获得化合物的分子量、化学结构、裂解规律和由单分子分解形成的某些离子间存在的某种相互关系等信息。
摘要
背景:
脊髓损伤通过非靶标代谢组学分析可用于发现和识别代谢物变化,分析其与脊髓损伤的关系,有助于理解并进一步探讨继发脊髓损伤的病理生理过程和机制。
目的:检测分析猕猴脊髓全横断损伤后血清代谢物变化,探讨其与脊髓损伤病理生理过程的关系,筛选潜在生物标志物。
方法:对5只成年猕猴脊髓全横断损伤前1 d(正常对照),损伤后3 h(超急性期)及3 d(急性期)血清进行气相飞行时间质谱(GC/TOF-MS)非靶标检测,通过与质谱图库比对,指认代谢产物,查找差异代谢物,并映射至相关代谢通路,分析病理生理过程和作用机制。
结果与结论:质谱分析共识别出358个谱峰,14个代谢物被认定为差异代谢物,包括小分子有机酸,氨基酸,脂肪酸和糖。结果显示,全横断脊髓损伤急性期与氨基酸代谢、三羧酸循环和丙酮酸代谢密切相关。

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程
ORCID: 0000-0003-3261-3007(唐涛)

关键词: 组织构建, 组织工程, 猕猴, 脊髓损伤, 代谢组学, 气相飞行时间质谱, 三羧酸循环, 氨基酸代谢, 丙酮酸代谢, 主成分分析, 国家自然科学基金

Abstract:

BACKGROUND: Non-targeted metabolomic profiling is used to uncover metabolic changes and to identify relationships between metabolites and spinal cord injury, which contributes to further understanding the pathophysiological process and mechanisms of secondary spinal cord injury.
OBJECTIVE: To detect and analyze the serum metabolite changes after complete spinal cord transaction in macaques, explore its relationship with the pathophysiological progress of spinal cord injury, and screen the potential biomarkers.
METHODS: Five adult macaques were selected, in which the models of complete spinal cord transaction were established. The serum metabolic features were detected using a non-targeted metabolic profiling strategy based on gas chromatography time-of-flight mass spectrometry at 1 day before modeling, 3 hours (superacute phase) and 3 days (acute phase) after modeling. After compared with the spectrometry profiling, recognizing the metabolites, searching for differential metabolites and the related metabolic pathways, the pathophysiological process and mechanisms were analyzed.
RESULTS AND CONCLUSION: Three hundred and fifty-eight chromatographic peaks were obtained for subsequent data analysis. Fourteen metabolites, including low-molecular-weight organic acid, amino acids, fatty acid and carbohydrate, were identified as differential metabolites. To conclude, the acute phase of complete spinal cord transection is closely related to some metabolic pathways, such as amino acid metabolism, tricarboxylic acid cycle and pyruvate metabolism.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words: Gas Chromatography-Mass Spectrometry, Spinal Cord Injuries, Metabolism, Tissue Engineering

中图分类号: