Peritoneal tissue-resident macrophages are metabolically poised to engage microbes using tissue-niche fuels

Abstract

Tissue-resident marcophages have both generic and tissue-specific functions, but how the latter functions are imbued is still unclear. Here the authors show that peritoneal macrophages express a specialised genetic programme to utilise the locally enriched glutamate for a metabolic setting that facilitates protective in situ immunity.