Fig. 1From: TREM2 in the pathogenesis of AD: a lipid metabolism regulator and potential metabolic therapeutic targetTREM2 regulates microglial cholesterol metabolism and participates in the response to myelin damage. The activation of the TREM2-DAP12 signaling pathway may promote microglial cholesterol efflux and reduces intracellular cholesterol to be stored as CE, possibly by activating PLCγ2. The effluent cholesterol might be carried by APOE-containing lipoproteins. Besides, TREM2 mediates the microglial response to myelin damage, leading to increased phagocytosis of myelin debris and thus may promote remyelination.Back to article page