ArticleResearch (Washington, D.C.)2026
Tumor-Derived Exosomal Fatty Acids Reprogram Neutrophils to Drive Neutrophil Extracellular Traps Formation and Lung Cancer Progression.
Article in Research (Washington, D.C.), 2026. 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
13 authors.
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Abstract
Tumor-infiltrating neutrophils are increasingly recognized as key drivers of cancer progression, but the mechanisms that govern their protumoral reprogramming remain elusive. Here, we demonstrated that lung cancer-derived exosomes (LDEs) deliver free fatty acids into neutrophils, triggering lipid accumulation, fatty acid β-oxidation, and mitochondrial reactive oxygen species production. This metabolic reprogramming culminates in enhanced neutrophil extracellular traps (NETs) formation, which accelerates lung cancer growth. Mechanistically, Ras-related protein Rab-34 (Rab34), a small guanosine triphosphatase, regulates neutrophil uptake of LDEs. Knockdown of Rab34 in neutrophils dramatically attenuated LDEs-induced lipid accumulation, fatty acid β-oxidation activation, and NETs formation, thereby mitigating neutrophil-involved lung cancer progression in vivo. Deoxyribonuclease I-mediated NETs degradation further confirmed the dependency of lung cancer growth on NETs. These findings uncovered a Rab34-dependent way by which LDEs reprogram neutrophils via exosomal free fatty acids, offering Rab34 and NET-associated pathways as potential therapeutic targets in lung cancer.
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