ArticleVirologica Sinica2025
Deep data-independent acquisition-based plasma proteomic profiling unveils distinct molecular features in dengue fever with neutropenia.
Article in Virologica Sinica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Dengue virus (DENV) remains a pervasive global health threat, further complicated by the occurrence of neutropenia-a distinct clinical feature indicative of an altered host immune response, closely correlated with progressive disease deterioration and increased severity. Nevertheless, the molecular mechanisms underlying dengue-associated neutropenia remain inadequately elucidated. In this study, the comprehensive plasma proteomic profiling of dengue fever (DF) patients, DF patients with neutropenia (DFN), and healthy controls (HC) was systematically analyzed using a deep data-independent acquisition (DIA) workflow combined with LC-MS/MS analysis, to elucidate key cellular pathways and identify promising biomarkers. DFN patients exhibited significant dual hematological alterations, with notable changes in both platelet and neutrophil counts, reflecting a complex disturbance in hematological homeostasis during dengue progression. DIA analysis quantified 2475 proteins, revealing widespread proteomic alterations among the DF, DFN, and HC subjects. Differential analysis highlighted significant fluctuations in proteins related to cytoskeletal organization, metabolic regulation, and intracellular signaling. Enrichment analyses implicated pathways such as focal adhesion, platelet activation, and PI3K-Akt signaling. Machine learning methods further identified a panel of four biomarkers-CNST, DSTN, DUSP3, and PDIA5-with high predictive accuracy for dengue diagnosis and subgroup differentiation. In conclusion, this study advances our understanding of dengue's plasma proteomic landscape and underscores the synergistic potential of DIA-based proteomics and machine learning in unveiling host-response mechanisms, thereby informing early diagnosis and targeted therapeutic strategies.
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