2013
Expression of Kv1.3 potassium channels regulates density of cortical interneurons
Duque A, Gazula V, Kaczmarek LK. Expression of Kv1.3 potassium channels regulates density of cortical interneurons. Developmental Neurobiology 2013, 73: 841-855. PMID: 23821603, PMCID: PMC3829632, DOI: 10.1002/dneu.22105.Peer-Reviewed Original ResearchConceptsKv1.3 geneMembrane-spanning channelsKv1.3-/- miceVasoactive intestinal peptideEffect of deletionCerebral cortexKv1.3 potassium channelsNeuropeptide YNeuronal differentiationKv1.3 proteinOlfactory bulbInterneuron populationsSelective poresExpression of Kv1.3Large familyCell membraneKv channelsNumber of calbindinNormal cortical functionWhole cerebral cortexWild-type miceKv1.3GenesDetection of odorsPotassium channels
2010
Localization of Kv1.3 channels in presynaptic terminals of brainstem auditory neurons
Gazula V, Strumbos JG, Mei X, Chen H, Rahner C, Kaczmarek LK. Localization of Kv1.3 channels in presynaptic terminals of brainstem auditory neurons. The Journal Of Comparative Neurology 2010, 518: 3205-3220. PMID: 20575068, PMCID: PMC2894291, DOI: 10.1002/cne.22393.Peer-Reviewed Original ResearchConceptsPresynaptic terminalsBrainstem auditory neuronsPattern of stainingMNTB neuronsPrincipal neuronsSynaptic markersTrapezoid bodyCochlear nucleusAfferent inputAxonal stainingMedial nucleusAuditory brainstemPresynaptic endingsOlfactory bulbAuditory neuronsPotassium channel genesTonotopic axisTonotopic gradientNeuronsKv1.3 channelsProminent labelingPrincipal cellsAuditory stimuliKv1 familyKv1.3Kv1.3 is the exclusive voltage‐gated K+ channel of platelets and megakaryocytes: roles in membrane potential, Ca2+ signalling and platelet count
McCloskey C, Jones S, Amisten S, Snowden RT, Kaczmarek LK, Erlinge D, Goodall AH, Forsythe ID, Mahaut‐Smith M. Kv1.3 is the exclusive voltage‐gated K+ channel of platelets and megakaryocytes: roles in membrane potential, Ca2+ signalling and platelet count. The Journal Of Physiology 2010, 588: 1399-1406. PMID: 20308249, PMCID: PMC2876798, DOI: 10.1113/jphysiol.2010.188136.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBlood PlateletsCalcium SignalingCell SizeDNA, ComplementaryHumansIn Vitro TechniquesKv1.3 Potassium ChannelMegakaryocytesMembrane PotentialsMiceMice, Inbred C57BLPatch-Clamp TechniquesPlatelet CountReverse Transcriptase Polymerase Chain ReactionScorpion VenomsSecond Messenger SystemsConceptsLarge ionic conductanceMembrane potentialHuman plateletsKv alphaMegakaryocyte developmentAncillary subunitsQuantitative RT-PCRMolecular levelKv channelsRole of Kv1.3MegakaryocytesKv1.3RT-PCRWild-type miceKv currentsSubunitsSignalingMiceApoptosisMargatoxinPlatelet activationRoleIonic conductancesPlateletsActivationThe Slack Sodium-Activated Potassium Channel Provides a Major Outward Current in Olfactory Neurons of Kv1.3−/− Super-Smeller Mice
Lu S, Das P, Fadool DA, Kaczmarek LK. The Slack Sodium-Activated Potassium Channel Provides a Major Outward Current in Olfactory Neurons of Kv1.3−/− Super-Smeller Mice. Journal Of Neurophysiology 2010, 103: 3311-3319. PMID: 20393063, PMCID: PMC2888249, DOI: 10.1152/jn.00607.2009.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnimals, NewbornBiophysicsCardiovascular AgentsCells, CulturedElectric StimulationGene Expression RegulationIn Vitro TechniquesKv1.3 Potassium ChannelMembrane PotentialsMiceMice, Inbred C57BLMice, KnockoutNerve Tissue ProteinsNeuronsOlfactory BulbPatch-Clamp TechniquesPotassium ChannelsPotassium Channels, Sodium-ActivatedPyrimidinesRNA InterferenceSodium Channel BlockersTetrodotoxinTransfectionConceptsMitral cellsOlfactory bulbOutward currentsOlfactory neuronsWildtype animalsPotassium channelsMajor outward currentVoltage-clamp recordingsVoltage-dependent potassium channelsNet outward currentIntracellular sodiumOB slicesPotassium channel genesCompensatory increaseFiring patternsWestern blottingRNA interference approachPrimary culturesEnhanced expressionDetection of odorsSame treatmentChannel genesMiceNeuronsOlfactory phenotypes
2004
The voltage-gated potassium channel Kv1.3 regulates peripheral insulin sensitivity
Xu J, Wang P, Li Y, Li G, Kaczmarek LK, Wu Y, Koni PA, Flavell RA, Desir GV. The voltage-gated potassium channel Kv1.3 regulates peripheral insulin sensitivity. Proceedings Of The National Academy Of Sciences Of The United States Of America 2004, 101: 3112-3117. PMID: 14981264, PMCID: PMC365752, DOI: 10.1073/pnas.0308450100.Peer-Reviewed Original ResearchMeSH KeywordsAdipose TissueAnimalsBiological TransportFastingGlucoseInsulinInterleukin-6JNK Mitogen-Activated Protein KinasesKineticsKv1.3 Potassium ChannelMaleMiceMice, Inbred C57BLMice, KnockoutMice, ObeseMitogen-Activated Protein KinasesModels, BiologicalMuscle, SkeletalPotassium ChannelsPotassium Channels, Voltage-GatedTumor Necrosis Factor-alphaConceptsKv1.3-/- micePeripheral glucose homeostasisPeripheral insulin sensitivityPlasma membraneGene inactivationInsulin sensitivityAmount of GLUT4Skeletal muscleTerminal kinase (JNK) activityGlucose homeostasisAdipose tissueLower blood insulin levelsVoltage-gated potassium channelsInsulin-stimulated glucose uptakeVoltage-gated potassium channel Kv1.3Tumor necrosis factor productionExperimental autoimmune encephalitisBlood insulin levelsHigh-fat dietPotassium channel Kv1.3Tumor necrosis factor secretionPeripheral T lymphocytesKinase activityNecrosis factor productionNumber of tissuesKv1.3 Channel Gene-Targeted Deletion Produces “Super-Smeller Mice” with Altered Glomeruli, Interacting Scaffolding Proteins, and Biophysics
Fadool DA, Tucker K, Perkins R, Fasciani G, Thompson RN, Parsons AD, Overton JM, Koni PA, Flavell RA, Kaczmarek LK. Kv1.3 Channel Gene-Targeted Deletion Produces “Super-Smeller Mice” with Altered Glomeruli, Interacting Scaffolding Proteins, and Biophysics. Neuron 2004, 41: 389-404. PMID: 14766178, PMCID: PMC2737549, DOI: 10.1016/s0896-6273(03)00844-4.Peer-Reviewed Original ResearchMeSH Keywords14-3-3 ProteinsAdaptor Proteins, Vesicular TransportAnimalsBehavior, AnimalBlotting, WesternBody WeightBrain-Derived Neurotrophic FactorCalcium ChannelsCells, CulturedDensitometryDifferential ThresholdDiscrimination, PsychologicalDose-Response Relationship, DrugDrinkingElectric StimulationEmbryo, MammalianEnergy IntakeExploratory BehaviorGene DeletionGRB10 Adaptor ProteinHabituation, PsychophysiologicHumansInsulinKidneyKineticsKv1.3 Potassium ChannelMembrane PotentialsMiceMice, KnockoutMotor ActivityNerve Tissue ProteinsNeuronsNeurotoxinsNuclear Matrix-Associated ProteinsOdorantsOlfactory BulbPatch-Clamp TechniquesPotassium ChannelsPotassium Channels, Voltage-GatedProteinsRas ProteinsReceptor, trkBReverse Transcriptase Polymerase Chain ReactionRNA, MessengerScorpion VenomsSensory ThresholdsSrc-Family KinasesTime FactorsTyrosine 3-MonooxygenaseConceptsKv1.3-/- miceProtein-protein interactionsGene-targeted deletionKv1.3-null miceSignal transductionScaffolding proteinSignaling cascadesChannel genesC-type inactivationDeletionMembrane potentialNull miceOlfactory codingDetection of odorsPotassium channelsKv1.3 channelsProteinSense of smellSlow inactivation kineticsWild-type miceTransductionGenesOlfactory bulb mitral cellsMiceRole
2003
Compensatory Anion Currents in Kv1.3 Channel-deficient Thymocytes*
Koni PA, Khanna R, Chang MC, Tang MD, Kaczmarek LK, Schlichter LC, Flavell R. Compensatory Anion Currents in Kv1.3 Channel-deficient Thymocytes*. Journal Of Biological Chemistry 2003, 278: 39443-39451. PMID: 12878608, DOI: 10.1074/jbc.m304879200.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsApoptosisBase SequenceCell DivisionChloride ChannelsDNAFemaleGene ExpressionIon TransportKv1.3 Potassium ChannelLymphocyte ActivationMaleMembrane PotentialsMiceMice, Inbred C57BLMice, KnockoutPatch-Clamp TechniquesPotassium ChannelsPotassium Channels, Voltage-GatedRNA, MessengerT-LymphocytesConceptsWild-type cellsKv1.3-/- micePotassium channel subunitsVoltage-gated potassium channelsMouse thymocyte subsetsChloride currentsChannel subunitsAnion currentsT-cell activation/proliferationVoltage-dependent potassium currentsVolume regulationCell proliferationThymocyte apoptosisT cell responsesCell-mediated cytotoxicityObvious defectsCell activation/proliferationImmune system defectsT cell proliferationActivation/proliferationPotassium channelsLymph nodesCompensatory effectLymphocyte typeKv1.3The voltage-gated potassium channel Kv1.3 regulates energy homeostasis and body weight
Xu J, Koni PA, Wang P, Li G, Kaczmarek L, Wu Y, Li Y, Flavell RA, Desir GV. The voltage-gated potassium channel Kv1.3 regulates energy homeostasis and body weight. Human Molecular Genetics 2003, 12: 551-559. PMID: 12588802, DOI: 10.1093/hmg/ddg049.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBasal MetabolismBody WeightHomeostasisKv1.3 Potassium ChannelMiceObesityOrgan SpecificityPotassium ChannelsPotassium Channels, Voltage-GatedConceptsBody weightBasal metabolic rateKv1.3 channelsDiet-induced obesityHigh-fat dietBody weight regulationT cell activationVoltage-gated potassium channel Kv1.3Voltage-gated potassium channelsPotassium channel Kv1.3Control littermatesFood intakeLittermate controlsKnockout miceWeight regulationIndirect calorimetryMetabolic rateChannel inhibitionCell activationEnergy homeostasisKnockout animalsPotassium channelsCell membrane potentialMiceChannel Kv1.3
1999
hSK4/hIK1, a Calmodulin-binding KCa Channel in Human T Lymphocytes ROLES IN PROLIFERATION AND VOLUME REGULATION*
Khanna R, Chang M, Joiner W, Kaczmarek L, Schlichter L. hSK4/hIK1, a Calmodulin-binding KCa Channel in Human T Lymphocytes ROLES IN PROLIFERATION AND VOLUME REGULATION*. Journal Of Biological Chemistry 1999, 274: 14838-14849. PMID: 10329683, DOI: 10.1074/jbc.274.21.14838.Peer-Reviewed Original ResearchConceptsIK currentsActivated T cell functionSecondary immune responseNaive T cellsT cell functionPromising therapeutic targetChinese hamster ovary cellsHamster ovary cellsHuman T lymphocytesVolume regulationKCa channelsT cellsT lymphocytesImmune responseTherapeutic targetIK blockHSK4Accessory moleculesHuman T lymphoblastsOvary cellsDistal C-terminusPharmacological propertiesT lymphoblastsCell functionProximal C-terminus
1996
Inhibition by Nystatin of Kv1.3 Channels Expressed in Chinese Hamster Ovary Cells
HAHN S, WANG L, KACZMAREK L. Inhibition by Nystatin of Kv1.3 Channels Expressed in Chinese Hamster Ovary Cells. Neuropharmacology 1996, 35: 895-901. PMID: 8938720, DOI: 10.1016/0028-3908(96)00094-9.Peer-Reviewed Original ResearchConceptsKv1.3 currentsEffect of nystatinPerforated patch recordingsChinese hamster ovary cellsPatch-clamp techniqueWhole-cell configurationConcentration-dependent reductionHamster ovary cellsRectifier potassium channelHalf-maximal inhibitionPotassium channel Kv1.3Patch recordingsMaximal inhibitionAmphotericin BOvary cellsKv1.3 channelsPotassium channelsTetraethylammoniumChannel Kv1.3Intracellular solutionInhibitionRapid blockNystatinDrugsApparent inactivation