Identification of Differentially Expressed Proteins in Rats with Early Subacute Spinal Cord Injury using an iTRAQ-based Quantitative Analysis

小桶 蛋白质组学 等压标记 生物 基因 基因表达 脊髓损伤 脊髓 基因本体论 中枢神经系统 生物途径 计算生物学 生物信息学 定量蛋白质组学 神经科学 遗传学
作者
Yongfu Lou,Yigang Lv,Zhen Li,Yi‐No Kang,Mengfan Hou,Zheng Fu,Lu Lu,Lu Liu,Zhiwei Cai,Zhangyang Qi,Huan Jian,Wenyuan Shen,Xueying Li,Hengxing Zhou,Shiqing Feng
出处
期刊:Combinatorial Chemistry & High Throughput Screening [Bentham Science]
卷期号:26 (11): 1960-1973 被引量:2
标识
DOI:10.2174/1386207326666230113152622
摘要

Background: Injuries to the central nervous system (CNS), such as spinal cord injury (SCI), may devastate families and society. Subacute SCI may majorly impact secondary damage during the transitional period between the acute and subacute phases. A range of CNS illnesses has been linked to changes in the level of protein expression. However, the importance of proteins during the early subacute stage of SCI remains unknown. The role of proteins in the early subacute phase of SCI has not been established yet. Methods: SCI-induced damage in rats was studied using isobaric tagging for relative and absolute protein quantification (iTRAQ) to identify proteins that differed in expression 3 days after the injury, as well as proteins that did not alter in expression. Differentially expressed proteins (DEPs) were analyzed employing Gene Ontology (GO) enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis to discover the biological processes, cell components, and molecular functions of the proteins. We also performed Gene Set Enrichment Analysis (GSEA) software BP pathway and KEGG analysis on all proteins to further identify their functions. In addition, the first 15 key nodes of a protein-protein interaction (PPI) system were found. Results: During the early subacute stage of SCI, we identified 176 DEPs in total between the control and damage groups, with 114 (64.77%) being up-regulated and 62 (35.23%) being down-regulated. As a result of this study, we discovered the most important cellular components and molecular activities, as well as biological processes and pathways, in the early subacute phase of SCI. The top 15 high-degree core nodes were Alb, Plg, F2, Serpina1, Fgg, Apoa1, Vim, Hpx, Apoe, Agt, Ambp, Pcna, Gc, F12, and Gfap. Conclusion: Our study could provide new views on regulating the pathogenesis of proteins in the early subacute phase after SCI, which provides a theoretical basis for exploring more effective therapeutic targets for SCI in the future.
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