Medial PFC AMPA receptor and BDNF signaling are required for the rapid and sustained antidepressant-like effects of 5-HT1A receptor stimulation
Fukumoto K, Fogaça M, Liu RJ, Duman CH, Li XY, Chaki S, Duman RS. Medial PFC AMPA receptor and BDNF signaling are required for the rapid and sustained antidepressant-like effects of 5-HT1A receptor stimulation. Neuropsychopharmacology 2020, 45: 1725-1734. PMID: 32396921, PMCID: PMC7419563, DOI: 10.1038/s41386-020-0705-0.Peer-Reviewed Original ResearchConceptsBrain-derived neurotrophic factorAntidepressant-like effectsMajor depressive disorderMedial prefrontal cortexMPFC infusionSelective stimulationReceptor antagonistAMPA receptorsNon-competitive N-methyl-D-aspartate (NMDA) receptor antagonistTreatment of MDDN-methyl-D-aspartate receptor antagonistSynaptic functionAntidepressant-like actionNovelty-suppressed feedingAMPA receptor antagonistGlutamate AMPA receptorsMPFC 5Antidepressant effectsNeurotrophic factorReceptor agonistDepressive disorderSerotonergic systemReceptor stimulationReceptor activationSynaptic proteinsGABA interneurons are the cellular trigger for ketamine’s rapid antidepressant actions
Gerhard DM, Pothula S, Liu RJ, Wu M, Li XY, Girgenti MJ, Taylor SR, Duman CH, Delpire E, Picciotto M, Wohleb ES, Duman RS. GABA interneurons are the cellular trigger for ketamine’s rapid antidepressant actions. Journal Of Clinical Investigation 2020, 130: 1336-1349. PMID: 31743111, PMCID: PMC7269589, DOI: 10.1172/jci130808.Peer-Reviewed Original ResearchConceptsRapid antidepressant actionsAntidepressant actionGABA interneuronsMedial prefrontal cortexCell-specific knockdownPrinciple neuronsPrefrontal cortexDeletion of GluN2BSingle subanesthetic doseBehavioral actionsAction of ketamineNMDA receptor antagonistExcitatory postsynaptic currentsCellular triggersMajor unmet needKetamine's rapid antidepressant actionsGABA subtypeGluN2B-NMDARsSST interneuronsPostsynaptic currentsReceptor antagonistDepressed patientsSubanesthetic doseExtracellular glutamateMood disorders