EP2 suppression curbs ferroptosis

This proposed mechanism asks whether blocking a prostaglandin receptor could protect muscle, heart and lung when neutrophil uptake by immune cells is blocked. The receptor, EP2, may alter resident macrophages, tissue immune cells, so they release itaconate, a metabolic product proposed to shield nearby cells from ferroptosis, iron-driven death caused by lipid damage. The test predicts preserved organ function, higher natural itaconate flow and less lipid oxidation. Removing macrophage ACOD1, the enzyme that makes itaconate, should erase the benefit. Isotope tracing and several cell-death markers would separate this route from rivals.