ArticleProceedings of the National Academy of Sciences of the United States of America2026
Metabolomic profiling reveals the potential of fatty acids as regulators of exhausted CD8 T cells during chronic viral infection.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Post-COVID impairment of T cell responses to community-acquired pathogens can be modified by activating cellular metabolism.PLoS pathogens · 2026Article
- Severe Hospitalization-Requiring Viral Infection With Influenza or COVID-19: Metabolic Pathway Analysis.Open forum infectious diseases · 2026Article
- A macrophage MHC-I axis links intratumoral heterogeneity to terminal CD8NPJ precision oncology · 2026Article
- Metabolomics Highlights Reduced Glutamate and Acetylcarnitine in the Amniotic Fluid of Cytomegalovirus-Infected Pregnant Women.Journal of proteome research · 2026Article
- Metabolomic profiling reveals the potential of fatty acids as regulators of exhausted CD8 T cells during chronic viral infection.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Genomic analysis of progenitors in viral infection implicates glucocorticoids as suppressors of plasmacytoid dendritic cell generation.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
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Abstract
Chronic infections induce CD8 T cell exhaustion, marked by impaired effector function. While intrinsic drivers are well studied, the role of the surrounding metabolic environment in shaping exhausted CD8 T cells (Tex) is less understood. Using untargeted metabolomics and the murine lymphocytic choriomeningitis virus infection model, we investigated systemic metabolite changes following acute vs. chronic viral infections. We identified distinct short-term and persistent metabolite shifts, with the most significant differences occurring transiently during the early phase of the sustained infection. This included nutrient changes that were partially associated with CD8 T cell-induced anorexia and lipolysis. One remarkable observation was the elevation of medium- and long-chain fatty acids (FA) and acylcarnitines during the first week after chronic infection. Consistently, virus-specific CD8 T cells from chronic infection exhibited increased lipid accumulation and uptake compared to their counterparts from acute infection, particularly the stem-like Tex (Tex
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