2014
Disrupted in Schizophrenia 1 Modulates Medial Prefrontal Cortex Pyramidal Neuron Activity Through cAMP Regulation of Transient Receptor Potential C and Small-Conductance K+ Channels
El-Hassar L, Simen AA, Duque A, Patel KD, Kaczmarek LK, Arnsten AF, Yeckel MF. Disrupted in Schizophrenia 1 Modulates Medial Prefrontal Cortex Pyramidal Neuron Activity Through cAMP Regulation of Transient Receptor Potential C and Small-Conductance K+ Channels. Biological Psychiatry 2014, 76: 476-485. PMID: 24560582, PMCID: PMC4104266, DOI: 10.1016/j.biopsych.2013.12.019.Peer-Reviewed Original ResearchConceptsCyclic adenosine monophosphateIntracellular Ca2Prefrontal cortical pyramidal neuronsReceptor-mediated intracellular Ca2Regulation of cAMPPrefrontal cortical slicesCortical pyramidal neuronsDISC1 functionMajor depressive disorderPyramidal neuron activityPatch-clamp recordingsTRPC channel activityDISC1 disruptionPrefrontal cortex activityPyramidal neuronsCortical slicesDepressive disorderAdult ratsIntracellular calcium wavesSustained depolarizationViral knockdownNeuron activityBipolar disorderMental disordersCAMP generation
2010
Specific and rapid effects of acoustic stimulation on the tonotopic distribution of Kv3.1b potassium channels in the adult rat
Strumbos J, Polley D, Kaczmarek L. Specific and rapid effects of acoustic stimulation on the tonotopic distribution of Kv3.1b potassium channels in the adult rat. Neuroscience 2010, 167: 567-572. PMID: 20219640, PMCID: PMC2854512, DOI: 10.1016/j.neuroscience.2010.02.046.Peer-Reviewed Original ResearchMeSH KeywordsAcoustic StimulationAdaptation, PhysiologicalAnimalsAntibody SpecificityAuditory PathwaysAuditory ThresholdImmunohistochemistryIon Channel GatingNerve Tissue ProteinsNeuronal PlasticityRatsRats, Sprague-DawleyReaction TimeRhombencephalonShaw Potassium ChannelsSound LocalizationSynaptic TransmissionTime FactorsUp-RegulationConceptsTotal cellular levelsCytoplasmic C-terminusCellular levelVoltage-gated potassium channel subunitsPotassium channel subunitsTonotopic distributionAdult ratsC-terminusChannel proteinsChannel subunitsSound localization circuitIon channelsProteinExperience-dependent plasticityCultured neuronsPotassium channelsHigh-frequency stimuliAcute slicesMedial nucleusSynaptic activityAuditory neuronsKv3.1 proteinMin of exposureAction potentialsAcoustic stimulation
2006
Modulation of Kv3.1b Potassium Channel Phosphorylation in Auditory Neurons by Conventional and Novel Protein Kinase C Isozymes*
Song P, Kaczmarek LK. Modulation of Kv3.1b Potassium Channel Phosphorylation in Auditory Neurons by Conventional and Novel Protein Kinase C Isozymes*. Journal Of Biological Chemistry 2006, 281: 15582-15591. PMID: 16595659, DOI: 10.1074/jbc.m512866200.Peer-Reviewed Original ResearchConceptsAuditory neuronsMNTB neuronsTrapezoid bodyBrief high-frequency electrical stimulationProtein kinase CMetabotropic glutamate receptor activationHigh-frequency electrical stimulationBasal phosphorylationGlutamate receptor activationHigh-frequency stimulationFrequency electrical stimulationHigh-frequency firingMature nervous systemKv3.1 potassium channelNeuronal abilityBrainstem slicesMedial nucleusFrequency stimulationAuditory brainstemFrequency firingConventional protein kinase CPharmacological activationNervous systemElectrical stimulationPKC isozymes
2005
Acoustic environment determines phosphorylation state of the Kv3.1 potassium channel in auditory neurons
Song P, Yang Y, Barnes-Davies M, Bhattacharjee A, Hamann M, Forsythe ID, Oliver DL, Kaczmarek LK. Acoustic environment determines phosphorylation state of the Kv3.1 potassium channel in auditory neurons. Nature Neuroscience 2005, 8: 1335-1342. PMID: 16136041, DOI: 10.1038/nn1533.Peer-Reviewed Original ResearchMeSH KeywordsAcoustic StimulationAction PotentialsAnimalsAnimals, NewbornBrain StemCHO CellsCricetinaeCricetulusDose-Response Relationship, RadiationElectric StimulationEnzyme InhibitorsFunctional LateralityGene Expression RegulationImmunohistochemistryIn Vitro TechniquesIndolesMaleimidesNeuronsPatch-Clamp TechniquesPhosphorylationProtein Kinase CRatsRats, Sprague-DawleyTetradecanoylphorbol AcetateConceptsKv3.1 potassium channelAction potentialsAuditory neuronsPotassium channelsShort-duration action potentialsRat brainstem neuronsAuditory brainstem nucleiProtein kinase CHigh-frequency spikingHigh-frequency auditoryBrainstem neuronsHigh-frequency stimuliBrainstem nucleiSynaptic stimulationNeuronsInteraural differencesSound localizationIntrinsic electrical propertiesKinase CAminoglycosides block the Kv3.1 potassium channel and reduce the ability of inferior colliculus neurons to fire at high frequencies
Liu S, Kaczmarek LK. Aminoglycosides block the Kv3.1 potassium channel and reduce the ability of inferior colliculus neurons to fire at high frequencies. Developmental Neurobiology 2005, 62: 439-452. PMID: 15547932, DOI: 10.1002/neu.20112.Peer-Reviewed Original ResearchConceptsInferior colliculus neuronsKv3.1 potassium channelColliculus neuronsKv3.1 currentsHearing lossAuditory neuronsPotassium channelsInhibition of Kv3.1Progressive hearing lossRate of repolarizationAuditory nucleiPotassium currentFiring propertiesPipette solutionAction potentialsNeuronsHigh frequencyEffect of streptomycinExtracellular TEAKv3.1 geneKv3.1 channelsAminoglycoside antibioticsStreptomycinKv3.1Presence of streptomycin
2003
Modulation of mitochondrial function by endogenous Zn2+ pools
Sensi SL, Ton-That D, Sullivan PG, Jonas EA, Gee KR, Kaczmarek LK, Weiss JH. Modulation of mitochondrial function by endogenous Zn2+ pools. Proceedings Of The National Academy Of Sciences Of The United States Of America 2003, 100: 6157-6162. PMID: 12724524, PMCID: PMC156342, DOI: 10.1073/pnas.1031598100.Peer-Reviewed Original ResearchConceptsDirect patch-clamp recordingsCultured cortical neuronsPatch-clamp recordingsCertain brain regionsNeuronal injuryPool of intracellularCortical neuronsIntact neuronsReactive oxygen species generationPostsynaptic neuronsClamp recordingsSynaptic spacePotent effectsBrain regionsOxygen species generationBrain mitochondriaMitochondrial poolMembrane depolarizationNeuronsRecent evidenceFurther studiesMitochondrial functionROS generationNovel evidenceSpecies generation
2002
Localization of the Slack potassium channel in the rat central nervous system
Bhattacharjee A, Gan L, Kaczmarek LK. Localization of the Slack potassium channel in the rat central nervous system. The Journal Of Comparative Neurology 2002, 454: 241-254. PMID: 12442315, DOI: 10.1002/cne.10439.Peer-Reviewed Original ResearchConceptsRat central nervous systemSlack potassium channelsChannel subunitsRat brain slicesCentral nervous systemRat brain membranesOnly cortical regionDeep cerebellar nucleiGiant presynaptic terminalSlo subunitWestern blot analysisSubstantia nigraTrigeminal systemImmunohistochemical studyMedial nucleusOculomotor nucleusReticular formationBrain slicesFrontal cortexOlfactory bulbPresynaptic terminalsRed nucleusNervous systemCerebellar nucleiBrain membranesHSV-1 Helper Virus 5dl1.2 Suppresses Sodium Currents in Amplicon-Transduced Neurons
White BH, Cummins TR, Wolf DH, Waxman SG, Russell DS, Kaczmarek LK. HSV-1 Helper Virus 5dl1.2 Suppresses Sodium Currents in Amplicon-Transduced Neurons. Journal Of Neurophysiology 2002, 87: 2149-2157. PMID: 11929932, DOI: 10.1152/jn.00498.2001.Peer-Reviewed Original ResearchConceptsSodium currentAnti-HSV antibodiesAverage spike frequencyWild-type HSV-1Helper virusViral-based strategiesDays of transductionCultured neuronsHSV-1Spike frequencyGene deliveryNeuronsMammalian neuronsAmplicon systemSimilar suppressionHSV-1 genesVirusTherapeutic purposesViral proteinsAmplicon preparationsCellsCoinfectionSuppressionPreparation resultsTiters
2001
Localization of two high‐threshold potassium channel subunits in the rat central auditory system
Li W, Kaczmarek L, Perney T. Localization of two high‐threshold potassium channel subunits in the rat central auditory system. The Journal Of Comparative Neurology 2001, 437: 196-218. PMID: 11494252, DOI: 10.1002/cne.1279.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAuditory PathwaysCochlear NucleusFemaleGene ExpressionGeniculate BodiesImmunohistochemistryIn Situ HybridizationInferior ColliculiNeuronsNeuropeptidesOligonucleotide ProbesOlivary NucleusPotassium ChannelsPotassium Channels, Voltage-GatedRatsRats, Sprague-DawleyRNA, MessengerShaw Potassium ChannelsConceptsAuditory neuronsKv3.1 mRNAPotassium channelsMost auditory neuronsBrainstem auditory neuronsRat central auditory systemAction potential thresholdSubpopulation of neuronsCentral auditory systemLateral superior oliveRat auditory systemAuditory systemVoltage-sensitive potassium channelsRapid deactivation kineticsPotassium channel subunitsTrapezoid bodyRat brainstemMedial nucleusVentral nucleusLateral lemniscusTerminal arborizationsSynaptic inputsAuditory nucleiSuperior oliveChannel expression
2000
Cloning and localization of the hyperpolarization-activated cyclic nucleotide-gated channel family in rat brain
Monteggia L, Eisch A, Tang M, Kaczmarek L, Nestler E. Cloning and localization of the hyperpolarization-activated cyclic nucleotide-gated channel family in rat brain. Brain Research 2000, 81: 129-139. PMID: 11000485, DOI: 10.1016/s0169-328x(00)00155-8.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBrainCloning, MolecularCyclic Nucleotide-Gated Cation ChannelsHumansHyperpolarization-Activated Cyclic Nucleotide-Gated ChannelsIn Situ HybridizationIon ChannelsMaleMembrane PotentialsModels, MolecularMolecular Sequence DataMultigene FamilyMuscle ProteinsNerve Tissue ProteinsOrgan SpecificityPotassium ChannelsProtein Structure, SecondaryRatsRats, Sprague-DawleyRNA, MessengerSequence AlignmentSequence Homology, Amino AcidTranscription, GeneticConceptsRat brainLower brain stem nucleiNeuronal pacemaker activityPrincipal relay nucleiBrain stem nucleiVentral cochlear nucleusAdult rat brainFacial motor nucleusCerebral cortexMotor nucleusStem nucleiTrapezoid bodyCochlear nucleusMamillary bodiesMedial habenulaRelay nucleiHCN1 expressionHCN1-4Olfactory bulbPontine nucleiAdult brainRhythmic firingPacemaker activitySupraoptic nucleusHCN4 expression
1998
Depolarization Selectively Increases the Expression of the Kv3.1 Potassium Channel in Developing Inferior Colliculus Neurons
Liu S, Kaczmarek L. Depolarization Selectively Increases the Expression of the Kv3.1 Potassium Channel in Developing Inferior Colliculus Neurons. Journal Of Neuroscience 1998, 18: 8758-8769. PMID: 9786983, PMCID: PMC6793528, DOI: 10.1523/jneurosci.18-21-08758.1998.Peer-Reviewed Original ResearchMeSH KeywordsAgingAnimalsAnimals, NewbornCalciumGene Expression Regulation, DevelopmentalIn Vitro TechniquesInferior ColliculiMembrane PotentialsNeuropeptidesPatch-Clamp TechniquesPotassiumPotassium ChannelsPotassium Channels, Voltage-GatedRatsRats, Sprague-DawleyRNA, MessengerShaw Potassium ChannelsConceptsInferior colliculus neuronsOnset of hearingColliculus neuronsCalcium influxChannel subunitsPotassium currentAction potentialsElevated external potassium concentrationCalcium channel blockersDepolarization-induced increaseSpontaneous neuronal activityNoninactivating potassium currentKv3.1 potassium channelVoltage-clamp experimentsChannel blockersNeuronal excitabilityElevated potassiumAuditory neuronsNeuronal activityExternal potassium concentrationExternal potassium ionsNeuronsPotassium channelsMRNA levelsMarked increaseThe Expression of Two Splice Variants of the Kv3.1 Potassium Channel Gene Is Regulated by Different Signaling Pathways
Liu S, Kaczmarek L. The Expression of Two Splice Variants of the Kv3.1 Potassium Channel Gene Is Regulated by Different Signaling Pathways. Journal Of Neuroscience 1998, 18: 2881-2890. PMID: 9526005, PMCID: PMC6792597, DOI: 10.1523/jneurosci.18-08-02881.1998.Peer-Reviewed Original ResearchMeSH KeywordsAlternative SplicingAnimalsCerebellumFibroblast Growth FactorsGene Expression Regulation, DevelopmentalMembrane PotentialsNerve Growth FactorsNeuropeptidesPotassium ChannelsPotassium Channels, Voltage-GatedProtein Kinase CRatsRats, Sprague-DawleyRNA, MessengerSecond Messenger SystemsShaw Potassium ChannelsSignal TransductionTranscription, GeneticConceptsDifferent signaling pathwaysKv3.1 potassium channel genePotassium channel genesBasic fibroblast growth factorChannel genesSignaling pathwaysNuclear protein kinase C activityMRNA levelsDifferent channel proteinsProtein kinase C inhibitorProtein kinase C activityKinase C inhibitorKinase C activityAlternative splicingNuclear RNAChannel proteinsMolecular mechanismsFibroblast growth factorDifferential regulationDevelopmental stagesSplice variantsC inhibitorPKC activityC activityGenesActivation of Kv3.1 channels in neuronal spine-like structures may induce local potassium ion depletion
Wang L, Gan L, Perney T, Schwartz I, Kaczmarek L. Activation of Kv3.1 channels in neuronal spine-like structures may induce local potassium ion depletion. Proceedings Of The National Academy Of Sciences Of The United States Of America 1998, 95: 1882-1887. PMID: 9465111, PMCID: PMC19207, DOI: 10.1073/pnas.95.4.1882.Peer-Reviewed Original ResearchConceptsSpine-like structuresIon channelsMembrane structureMembrane compartmentsVesicle compartmentKv3.1 channelsBulk cytoplasmElectron immunomicroscopyCHO cellsPostsynaptic membraneVesiclesMembrane patchesSpine-like protrusionsNeuronal membrane structurePotassium channel Kv3.1Channel Kv3.1CellsComplete inactivationInactivationCompartmentsRapid depletionCentral nervous systemSlow refillingSynaptic stimulationNeuronal structures
1997
Localization of a high threshold potassium channel in the rat cochlear nucleus
Perney T, Kaczmarek L. Localization of a high threshold potassium channel in the rat cochlear nucleus. The Journal Of Comparative Neurology 1997, 386: 178-202. PMID: 9295146, DOI: 10.1002/(sici)1096-9861(19970922)386:2<178::aid-cne2>3.0.co;2-z.Peer-Reviewed Original ResearchConceptsCochlear nucleusBushy cellsKv3.1 mRNAKv3.1 channelsPotassium channelsDorsal cochlear nucleusRat cochlear nucleusVentral cochlear nucleusLarge synaptic potentialsTypes of neuronsProximal dendritesSynaptic potentialsAxon terminalsStained neuronsUnmyelinated axonsAuditory neuronsNeuronal firingOctopus cellsMultipolar cellsGiant cellsKv3.1 proteinNeuronsKv3.1Situ hybridizationImmunolabeling
1996
Manipulation of the delayed rectifier Kv1.5 potassium channel in glial cells by antisense oligodeoxynucleotides
Roy M, Saal D, Perney T, Sontheimer H, Waxman S, Kaczmarek L. Manipulation of the delayed rectifier Kv1.5 potassium channel in glial cells by antisense oligodeoxynucleotides. Glia 1996, 18: 177-184. PMID: 8915650, DOI: 10.1002/(sici)1098-1136(199611)18:3<177::aid-glia2>3.0.co;2-x.Peer-Reviewed Original ResearchConceptsGlial cellsKv1.5 channel proteinSpinal cordKv1.5 proteinCultured spinal cordTEA-insensitive currentSpinal cord astrocytesRectifier current densityPotassium channel typesAntisense oligodeoxynucleotide treatmentKv1.5 potassium channelAdult ratsCerebellar slicesChannel proteinsAstrocytesOligodeoxynucleotide treatmentPotassium channelsRectifier currentEndfoot processesSuch treatmentCurrent activationAntisense oligodeoxynucleotidesCordCellsTreatment
1992
Expression of the mRNAs for the Kv3.1 potassium channel gene in the adult and developing rat brain
Perney T, Marshall J, Martin K, Hockfield S, Kaczmarek L. Expression of the mRNAs for the Kv3.1 potassium channel gene in the adult and developing rat brain. Journal Of Neurophysiology 1992, 68: 756-766. PMID: 1432046, DOI: 10.1152/jn.1992.68.3.756.Peer-Reviewed Original ResearchConceptsAdult rat brainRat brainSitu hybridization histochemistryAlpha mRNAThalamic nucleiHigh-frequency firing ratesHybridization histochemistryBeta mRNASubstantia nigra reticulataReticular thalamic nucleusNarrow action potentialsPostnatal day 10Embryonic day 17Alpha mRNA levelsSplice variantsKv3.1 transcriptsProtection assaysHeterogeneous expression patternKv3.1 potassium channel geneOlfactory tubercleVestibular nucleiBrain stemGlobus pallidusSame neuronsInferior colliculus