Urine proteomics for profiling of mouse toxoplasmosis using liquid chromatography tandem mass spectrometry analysis

Parasites & Vectors

Sha-Sha Wang¹  Bing Han²  Chun-Xue Zhou²  Si-Ying Li²  Dong-Hui Zhou³  Lin-Lin Cui³  Shi-Chen Xie⁴ 

[1] College of Veterinary Medicine, Northwest A&F University, 712100, Yangling, Shaanxi, People’s Republic of China;Department of Pathogen Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, 250012, Jinan, Shandong Province, People’s Republic of China;Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, College of Animal Sciences (College of Bee Science), Fujian Agriculture and Forestry University, 350002, Fuzhou, Fujian, China;State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 730046, Lanzhou, Gansu Province, People’s Republic of China;

关键词: Toxoplasma gondii;    Urine;    Proteomics;    Biomarkers;   

DOI  :  10.1186/s13071-021-04713-6

来源: Springer

【 摘 要 】

BackgroundToxoplasma gondii is an obligate intracellular parasite that causes toxoplasmosis. Urine is an easily obtained clinical sample that has been widely applied for diagnostic purposes. However, changes in the urinary proteome during T. gondii infection have never been investigated.MethodsTwenty four-hour urine samples were obtained from BALB/c mice with acute infection [11 days post infection (DPI)], mice with chronic infection (35 DPI) and healthy controls, and were analyzed using a label-free liquid chromatography tandem mass spectrometry analysis.ResultsWe identified a total of 13,414 peptides on 1802 proteins, of which 169 and 47 proteins were significantly differentially expressed at acute and chronic infection phases, respectively. Clustering analysis revealed obvious differences in proteome profiles among all groups. Gene ontology analysis showed that a large number of differentially expressed proteins (DEPs) detected in acute infection were associated with biological binding activity and single-organism processes. KEGG pathway enrichment analysis showed that the majority of these DEPs were involved in disease-related and metabolic pathways.ConclusionsOur findings revealed global reprogramming of the urine proteome following T.gondii infection, and data obtained in this study will enhance our understanding of the host responses to T. gondii infection and lead to the identification of new diagnostic biomarkers.Graphic Abstract

【 授权许可】

CC BY