期刊
PARASITES & VECTORS
卷 14, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s13071-021-04713-6
关键词
Toxoplasma gondii; Urine; Proteomics; Biomarkers
资金
- National Natural Science Foundation of China [31672549, 82002161]
- China Postdoctoral Science Foundation [2018M642663]
- National Key Research and Development Program of China [2017YFD0501304]
- Fujian Province Modern Poultry Industry Technology System Construction Project [2019-2022]
- Natural Science Foundation of Shandong Province of China [ZR2018BH30]
- Special Fund Project for Scientific and Technological Innovation of Fujian Agriculture and Forestry University [CXZX2019066G]
The study analyzed urine samples from mice infected with T. gondii at different stages and identified significantly differentially expressed proteins. Gene ontology analysis revealed that proteins detected during acute infection were associated with biological binding activity and single-organism processes.
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.
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