2024
Effects of ketamine on GABAergic and glutamatergic activity in the mPFC: biphasic recruitment of GABA function in antidepressant-like responses
Fogaça M, Daher F, Picciotto M. Effects of ketamine on GABAergic and glutamatergic activity in the mPFC: biphasic recruitment of GABA function in antidepressant-like responses. Neuropsychopharmacology 2024, 1-12. PMID: 39390105, DOI: 10.1038/s41386-024-02002-1.Peer-Reviewed Original ResearchNovelty suppressed feeding testMedial prefrontal cortexSucrose splash testEffects of ketamineAntidepressant-like responseMajor depressive disorderGABAergic activityGABA interneuronsGlutamatergic activityGABA neuronsSustained antidepressant effectsGABA neuron activityLow dose of ketamineAdministration of ketamineDose of ketamineAntidepressant responseAntidepressant developmentSplash testAntidepressant effectsPrefrontal cortexDepressive disorderChemogenetic inhibitionBehavioral actionsAssociated with disruptionGABA function
2020
GABA 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
2019
Role of Neuronal VEGF Signaling in the Prefrontal Cortex in the Rapid Antidepressant Effects of Ketamine
Deyama S, Bang E, Wohleb ES, Li XY, Kato T, Gerhard DM, Dutheil S, Dwyer JM, Taylor SR, Picciotto MR, Duman RS. Role of Neuronal VEGF Signaling in the Prefrontal Cortex in the Rapid Antidepressant Effects of Ketamine. American Journal Of Psychiatry 2019, 176: 388-400. PMID: 30606046, PMCID: PMC6494682, DOI: 10.1176/appi.ajp.2018.17121368.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodies, NeutralizingBehavior, AnimalExcitatory Amino Acid AntagonistsGene Knockdown TechniquesGene Knockout TechniquesIn Vitro TechniquesKetamineMiceNeuronsPrefrontal CortexQuinazolinesSignal TransductionVascular Endothelial Growth Factor AVascular Endothelial Growth Factor Receptor-2ConceptsNeuronal vascular endothelial growth factorVascular endothelial growth factorMedial prefrontal cortexRapid antidepressant actionsAntidepressant actionIntra-mPFC infusionSystemic ketamineBehavioral actionsFlk-1Conventional monoamine-based antidepressantsPrefrontal cortexRole of VEGFRapid antidepressant effectsTreatment-resistant depressionMethyl-d-aspartate receptor antagonist ketamineNeuron-specific deletionMonoamine-based antidepressantsNeuron-specific knockoutViral-mediated knockdownEndothelial growth factorVEGF-Flk-1Synaptogenic actionsAntidepressant effectsSynaptogenic effectsLocal knockdown