Figure 2.
miRNAs are regulated by neural activity. Neural activity-dependent Drosophila miR-1000 regulates glutamate release by targeting Vglut in axons. In dendrites, NMDAR regulates miR-129 (targeting Kv1.1), miR-138 (targeting Lypla1), and miR-501-3p (targeting GluA1); mGluR regulates miR-125a (targeting PSD95), miR-125b (targeting GluN2A), and miR-137 (targeting GluA1); TTX and APV increase miR-124 which suppresses GluA2; miR-223 regulates GluA2 and GluN2B to prevent neuronal excitotoxicity.