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Species-specific metabolic reprogramming in human and mouse microglia during inflammatory pathway induction
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Species-specific metabolic reprogramming in human and mouse microglia during inflammatory pathway induction
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Species-specific metabolic reprogramming in human and mouse microglia during inflammatory pathway induction
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Journal Article
Species-specific metabolic reprogramming in human and mouse microglia during inflammatory pathway induction
2023
Overview
Metabolic reprogramming is a hallmark of the immune cells in response to inflammatory stimuli. This metabolic process involves a switch from oxidative phosphorylation (OXPHOS) to glycolysis or alterations in other metabolic pathways. However, most of the experimental findings have been acquired in murine immune cells, and little is known about the metabolic reprogramming of human microglia. In this study, we investigate the transcriptomic, proteomic, and metabolic profiles of mouse and iPSC-derived human microglia challenged with the TLR4 agonist LPS. We demonstrate that both species display a metabolic shift and an overall increased glycolytic gene signature in response to LPS treatment. The metabolic reprogramming is characterized by the upregulation of hexokinases in mouse microglia and phosphofructokinases in human microglia. This study provides a direct comparison of metabolism between mouse and human microglia, highlighting the species-specific pathways involved in immunometabolism and the importance of considering these differences in translational research.
The innate immune cells undergo metabolic reprogramming upon inflammation. Here, the authors report that both mouse and human microglia display a metabolic reprogramming in the presence of a TLR4 activation, however species-specific enzymes are responsible for this process.
