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- W3119350295 abstract "Abstract Regulation of the cellular metabolism is now recognized as a crucial mechanism for the homeostasis of innate and adaptive immune cells upon diverse extracellular stimuli. Macrophages, for instance, increase glycolysis upon stimulation with pathogen-associated molecular patterns (PAMPs). Conceivably, pathogens also counteract these metabolic changes for their own survival in the host. However, despite this dynamic interplay in host-pathogen interactions, the role of immunometabolism in the context of intracellular bacterial infections is still unclear. Here, employing unbiased metabolomic and transcriptomic approaches, we investigated the role of metabolic adaptations of macrophages upon Salmonella enterica serovar Typhimurium ( S . Typhimurium) infections. Importantly, our results suggested that S . Typhimurium abrogates glycolysis and its modulators such as insulin-signaling to impair macrophage defense. Mechanistically, glycolytic enzyme aldolase A is critical for v-ATPase assembly and the acidification of phagosomes upon S . Typhimurium infection, and impairment in the glycolytic machinery eventually leads to decreased bacterial clearance and antigen presentation in macrophages. Collectively, our results highlight a vital molecular link between metabolic adaptation and phagosome maturation in macrophages, which is targeted by S . Typhimurium to evade cell-autonomous defense." @default.
- W3119350295 created "2021-01-18" @default.
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- W3119350295 date "2021-01-15" @default.
- W3119350295 modified "2023-10-18" @default.
- W3119350295 title "<i>S</i>. Typhimurium impairs glycolysis-mediated acidification of phagosomes to evade macrophage defense" @default.
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- W3119350295 doi "https://doi.org/10.1101/2021.01.14.426635" @default.
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