2025
Chronic Rapamycin Prevents Electrophysiological and Morphological Alterations Produced by Conditional Pten Deletion in Mouse Cortex
Hauptman J, Antonios J, Mathern G, Levine M, Cepeda C. Chronic Rapamycin Prevents Electrophysiological and Morphological Alterations Produced by Conditional Pten Deletion in Mouse Cortex. Cells 2025, 14: 79. PMID: 39851507, PMCID: PMC11764219, DOI: 10.3390/cells14020079.Peer-Reviewed Original ResearchConceptsCortical pyramidal neuronsMice treated with rapamycinGABA releasePTEN deletionWhole-cell patch-clamp recordingsMiniature inhibitory postsynaptic currentsEx vivo slicesNeuronal somatic sizeReduced neuronal firingInhibitory postsynaptic currentsChronic rapamycin treatmentPatch-clamp recordingsIncreased input resistanceInhibitory synaptic inputsDevelopmental brain disordersRapamycin treatmentIncreased membrane capacitanceConditional mouse modelChronic treatmentPostsynaptic currentsClamp recordingsNaive miceSynaptic excitationBrain disordersControl mice
2024
Identification of the potassium-binding site in serotonin transporter
Hellsberg E, Boytsov D, Chen Q, Niello M, Freissmuth M, Rudnick G, Zhang Y, Sandtner W, Forrest L. Identification of the potassium-binding site in serotonin transporter. Proceedings Of The National Academy Of Sciences Of The United States Of America 2024, 121: e2319384121. PMID: 38652746, PMCID: PMC11067047, DOI: 10.1073/pnas.2319384121.Peer-Reviewed Original ResearchConceptsSerotonin transporterSite-directed mutagenesis of residuesMutagenesis of residuesSite-directed mutagenesisHeterologous expression systemStudy of vesiclesNa2 siteClearance of serotoninPatch-clamp recordingsExpression systemBinding residuesSequential bindingMolecular dynamics simulationsBinding sitesPotassium binding siteSubstrate accumulationClamp recordingsVesiclesResiduesTurnover rateBindingStructural studiesChemical gradientsBinding configurationsSynaptic cleft
2021
Oxidation sensitizes TRPV2 to chemical and heat stimuli, but not mechanical stimulation
Oda M, Fujiwara Y, Ishizaki Y, Shibasaki K. Oxidation sensitizes TRPV2 to chemical and heat stimuli, but not mechanical stimulation. Biochemistry And Biophysics Reports 2021, 28: 101173. PMID: 34841092, PMCID: PMC8605382, DOI: 10.1016/j.bbrep.2021.101173.Peer-Reviewed Original ResearchTransient receptor potential vanilloid 2Response to 2-APBTransient receptor potential vanilloid 2 activationOocyte expression systemTwo-electrode voltage clamp recordingsMechanical stimulationVoltage clamp recordingsChemical ligandsOxidant chloramine TNoxious heatClamp recordingsOxidation of methionine residuesHeat stimuliTRP channelsTwo-electrodeOxidationLigandExpression systemStimulationChloramine TOocytesCell expression systemMethionine residuesMammalian cell expression systemChemical
2018
Endometriosis alters brain electrophysiology, gene expression and increases pain sensitization, anxiety, and depression in female mice†
Li T, Mamillapalli R, Ding S, Chang H, Liu ZW, Gao XB, Taylor HS. Endometriosis alters brain electrophysiology, gene expression and increases pain sensitization, anxiety, and depression in female mice†. Biology Of Reproduction 2018, 99: 349-359. PMID: 29425272, PMCID: PMC6692844, DOI: 10.1093/biolre/ioy035.Peer-Reviewed Original ResearchConceptsEffect of endometriosisPain sensitizationPain perceptionBrain electrophysiologyEstrogen-dependent inflammatory disorderReproductive-aged womenDetection of endometriosisRegions of brainPatch-clamp recordingsCentral sensitizationPelvic painGene expressionInflammatory disordersEndometriosis miceFemale miceSham controlsMood disordersEndometriosisPainClamp recordingsBehavioral testsMiceBrain gene expressionSensitizationElectrophysiology
2017
An ALS-Associated Mutant SOD1 Rapidly Suppresses KCNT1 (Slack) Na+-Activated K+ Channels in Aplysia Neurons
Zhang Y, Ni W, Horwich AL, Kaczmarek LK. An ALS-Associated Mutant SOD1 Rapidly Suppresses KCNT1 (Slack) Na+-Activated K+ Channels in Aplysia Neurons. Journal Of Neuroscience 2017, 37: 2258-2265. PMID: 28119399, PMCID: PMC5338764, DOI: 10.1523/jneurosci.3102-16.2017.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAplysiaBiophysicsCells, CulturedElectric StimulationEnzyme InhibitorsGanglia, InvertebrateHumansLuminescent ProteinsMembrane PotentialsMicroinjectionsMorpholinosMutationNerve Tissue ProteinsNeuronsPatch-Clamp TechniquesPotassium ChannelsPotassium Channels, Sodium-ActivatedRNA, Small InterferingSodiumSuperoxide Dismutase-1ConceptsAmyotrophic lateral sclerosisSuperoxide dismutase 1Mutant superoxide dismutase 1Potassium currentC-Jun N-terminal kinaseNeuronal excitabilityLateral sclerosisFatal adult-onset neurodegenerative diseaseN-terminal kinaseMutant human Cu/ZnNeuronal developmentDismutase 1Adult-onset neurodegenerative diseaseCurrent-clamp recordingsMotor neuron toxicityOutward potassium currentHuman Cu/ZnWild-type superoxide dismutase 1Neuron toxicityActivity of NaBag cell neuronsClamp recordingsNeuronal functionCell neuronsAction potentials
2016
Reduced high-frequency motor neuron firing, EMG fractionation, and gait variability in awake walking ALS mice
Hadzipasic M, Ni W, Nagy M, Steenrod N, McGinley MJ, Kaushal A, Thomas E, McCormick DA, Horwich AL. Reduced high-frequency motor neuron firing, EMG fractionation, and gait variability in awake walking ALS mice. Proceedings Of The National Academy Of Sciences Of The United States Of America 2016, 113: e7600-e7609. PMID: 27821773, PMCID: PMC5127366, DOI: 10.1073/pnas.1616832113.Peer-Reviewed Original ResearchConceptsALS miceAmyotrophic lateral sclerosisAcute spinal cord slicesSingle-unit extracellular recordingsWhole-cell patch-clamp recordingsLoss of neuronsMotor neuron lossMotor neuron firingSpinal cord slicesPatch-clamp recordingsHigh-frequency firingStep variabilityLethal neurodegenerative diseaseNeuron lossCord slicesSpinal cordLeg flexorsLateral sclerosisGait variabilityVivo effectsClamp recordingsExtracellular recordingsEMG patternsMutant miceNeuron firing
2015
Intracellular calcium affects prestin’s voltage operating point indirectly via turgor-induced membrane tension
Song L, Santos-Sacchi J. Intracellular calcium affects prestin’s voltage operating point indirectly via turgor-induced membrane tension. AIP Conference Proceedings 2015, 1703: 030009. DOI: 10.1063/1.4939324.Peer-Reviewed Original Research
2014
GABAergic striatal neurons project dendrites and axons into the postnatal subventricular zone leading to calcium activity
Young SZ, Lafourcade CA, Platel JC, Lin TV, Bordey A. GABAergic striatal neurons project dendrites and axons into the postnatal subventricular zone leading to calcium activity. Frontiers In Cellular Neuroscience 2014, 8: 10. PMID: 24478632, PMCID: PMC3904109, DOI: 10.3389/fncel.2014.00010.Peer-Reviewed Original ResearchSubventricular zoneStriatal neuronsSVZ cellsCalcium increaseCalcium activityNeurogenic subventricular zoneSource of GABAGABAergic striatal neuronsPatch-clamp recordingsPostnatal subventricular zoneNeural progenitor cellsGABAergic neuronsPostnatal neurogenesisGABAA receptorsGABAAR activationClamp recordingsCalcium imagingStriatal activityNeuronsProgenitor cellsGABAAxonsDepolarizationCellsDendrites
2013
The Dyslexia-Associated Gene Dcdc2 Is Required for Spike-Timing Precision in Mouse Neocortex
Che A, Girgenti MJ, LoTurco J. The Dyslexia-Associated Gene Dcdc2 Is Required for Spike-Timing Precision in Mouse Neocortex. Biological Psychiatry 2013, 76: 387-396. PMID: 24094509, PMCID: PMC4025976, DOI: 10.1016/j.biopsych.2013.08.018.Peer-Reviewed Original ResearchMeSH Keywords2-Amino-5-phosphonovalerateAction PotentialsAnimalsDyslexiaExcitatory Amino Acid AntagonistsGene ExpressionMembrane PotentialsMiceMice, KnockoutMicroelectrodesMicrotubule-Associated ProteinsNeocortexPatch-Clamp TechniquesPhenolsPiperidinesPyramidal CellsReceptors, N-Methyl-D-AspartateReverse Transcriptase Polymerase Chain ReactionSequence Analysis, RNATissue Culture TechniquesConceptsAmino-5-phosphonovaleric acidWhole-cell patch-clamp recordingsActivity of NMDARsAction potential firingWild-type micePatch-clamp recordingsTranscriptase-polymerase chain reactionSpike-timing precisionPyramidal neuronsElectrophysiological assessmentNMDAR antagonistsPolymerase chain reactionRo 25Neocortical activationClamp recordingsNeuronal physiologyElectrophysiological propertiesMouse neocortexRibonucleic acid sequencingFunctional increaseTemporal precisionChain reactionSequencing screenGene expressionNeocortexCocaine-Induced Changes of Synaptic Transmission in the Striatum are Modulated by Adenosine A2A Receptors and Involve the Tyrosine Phosphatase STEP
Chiodi V, Mallozzi C, Ferrante A, Chen JF, Lombroso PJ, Di Stasi AM, Popoli P, Domenici MR. Cocaine-Induced Changes of Synaptic Transmission in the Striatum are Modulated by Adenosine A2A Receptors and Involve the Tyrosine Phosphatase STEP. Neuropsychopharmacology 2013, 39: 569-578. PMID: 23989619, PMCID: PMC3895235, DOI: 10.1038/npp.2013.229.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCerebral CortexCocaineCorpus StriatumDopamine Uptake InhibitorsEnzyme InhibitorsGene Expression RegulationHumansIn Vitro TechniquesInhibitory Postsynaptic PotentialsMaleMiceMice, Inbred C57BLMice, KnockoutNeural PathwaysNeuronsProtein Tyrosine Phosphatases, Non-ReceptorReceptor, Adenosine A2ASynaptic TransmissionSynaptosomesVanadatesConceptsEffects of cocaineSynaptic transmissionAdenosine A2A receptorsStriatal-enriched protein tyrosine phosphatasePharmacological actionsA2A receptorsWhole-cell voltage-clamp recordingsA2AR antagonist ZM241385Excitatory post-synaptic currentsCocaine-induced reductionMedium spiny neuronsCocaine-induced changesVoltage-clamp recordingsPost-synaptic currentsA2AR knockout miceCorticostriatal slicesStriatal slicesPsychomotor effectsSpiny neuronsSynaptic mechanismsAntagonist ZM241385Synaptic depressionClamp recordingsBrain areasStriatumErratum: CORRIGENDUM: Fetal Radiofrequency Radiation Exposure From 800-1900 Mhz-Rated Cellular Telephones Affects Neurodevelopment and Behavior in Mice
Aldad T, Gan G, Gao X, Taylor H. Erratum: CORRIGENDUM: Fetal Radiofrequency Radiation Exposure From 800-1900 Mhz-Rated Cellular Telephones Affects Neurodevelopment and Behavior in Mice. Scientific Reports 2013, 3: 1320. PMCID: PMC3575011, DOI: 10.1038/srep01320.Peer-Reviewed Original ResearchMiniature excitatory postsynaptic currentsRadiofrequency radiation exposureLayer V pyramidal neuronsWhole-cell patch-clamp recordingsCell patch-clamp recordingsRadiation exposureGlutamatergic synaptic transmissionExcitatory postsynaptic currentsLight/dark boxPatch-clamp recordingsNon-human primatesPyramidal neuronsRisk of exposurePostsynaptic currentsSynaptic transmissionCellular telephone useMouse modelClamp recordingsNeurobehavioral disordersDevelopmental programmingPrefrontal cortexMiceDark boxBehavioral changesNeurodevelopment
2012
Fetal Radiofrequency Radiation Exposure From 800-1900 Mhz-Rated Cellular Telephones Affects Neurodevelopment and Behavior in Mice
Aldad TS, Gan G, Gao XB, Taylor HS. Fetal Radiofrequency Radiation Exposure From 800-1900 Mhz-Rated Cellular Telephones Affects Neurodevelopment and Behavior in Mice. Scientific Reports 2012, 2: 312. PMID: 22428084, PMCID: PMC3306017, DOI: 10.1038/srep00312.Peer-Reviewed Original ResearchConceptsMiniature excitatory postsynaptic currentsRadiofrequency radiation exposureLayer V pyramidal neuronsWhole-cell patch-clamp recordingsCell patch-clamp recordingsRadiation exposureGlutamatergic synaptic transmissionExcitatory postsynaptic currentsLight/dark boxPatch-clamp recordingsNon-human primatesPyramidal neuronsRisk of exposurePostsynaptic currentsSynaptic transmissionCellular telephone useMouse modelClamp recordingsNeurobehavioral disordersDevelopmental programmingPrefrontal cortexMiceDark boxBehavioral changesNeurodevelopment
2011
Derivation of functional ventricular cardiomyocytes using endogenous promoter sequence from murine embryonic stem cells
Lee MY, Sun B, Schliffke S, Yue Z, Ye M, Paavola J, Bozkulak EC, Amos PJ, Ren Y, Ju R, Jung YW, Ge X, Yue L, Ehrlich BE, Qyang Y. Derivation of functional ventricular cardiomyocytes using endogenous promoter sequence from murine embryonic stem cells. Stem Cell Research 2011, 8: 49-57. PMID: 22099020, PMCID: PMC3222859, DOI: 10.1016/j.scr.2011.08.004.Peer-Reviewed Original ResearchMeSH KeywordsAction PotentialsAdherens JunctionsAnimalsBacterial ProteinsBase SequenceCadherinsCalciumCell Culture TechniquesCell LineCell SeparationConnexin 43Embryonic Stem CellsFlow CytometryGap JunctionsHeart VentriclesImaging, Three-DimensionalIntegrasesLuminescent ProteinsMiceMyocytes, CardiacMyosin Light ChainsPromoter Regions, GeneticProteinsRNA, UntranslatedConceptsVentricular cardiomyocytesCalcium transientsNeonatal mouse ventricular cardiomyocytesFunctional excitation-contraction couplingCardiac contractile performanceDouble transgenic miceCurrent-clamp recordingsIntracellular calcium transientsExcitation-contraction couplingAction potential characteristicsMouse ventricular cardiomyocytesMyosin light chain 2vFluorescence-activated cell sortingAdrenergic signalingIntracellular calciumContractile performanceClamp recordingsTransgenic miceElectrical stimulationCardiac repairInduction of differentiationIsoproterenol stimulationExpression of YFPMouse linesN-cadherin
2010
Imaging and Recording Subventricular Zone Progenitor Cells in Live Tissue of Postnatal Mice
Lacar B, Young SZ, Platel JC, Bordey A. Imaging and Recording Subventricular Zone Progenitor Cells in Live Tissue of Postnatal Mice. Frontiers In Neuroscience 2010, 4: 43. PMID: 20700392, PMCID: PMC2918349, DOI: 10.3389/fnins.2010.00043.Peer-Reviewed Original ResearchSubventricular zoneSVZ cellsSubventricular zone progenitor cellsPatch-clamp recordingsCell populationsAstrocyte-like cellsFluorescent reporter miceRNA interference technologyNeurogenic zonesAcute slicesCellular diversityGlial cellsLateral ventricleMultiple cell populationsOlfactory bulbPostnatal brainClamp recordingsReporter miceFloxed miceTransgenic micePostnatal miceCalcium activityMiceProgenitor cellsGenetic labeling
2009
Ependymal cells along the lateral ventricle express functional P2X7 receptors
Genzen JR, Platel JC, Rubio ME, Bordey A. Ependymal cells along the lateral ventricle express functional P2X7 receptors. Purinergic Signalling 2009, 5: 299-307. PMID: 19274488, PMCID: PMC2717311, DOI: 10.1007/s11302-009-9143-5.Peer-Reviewed Original ResearchP2X7 receptorEpendymal cellsSubventricular zoneWhole-cell patch-clamp recordingsCentral nervous system injuryFunctional P2X7 receptorsFunctional purinergic receptorsNervous system injuryPatch-clamp recordingsMouse subventricular zoneSVZ neurogenic nicheNeural progenitor responseAbsence of responseSystem injuryCerebral ventricleProgenitor responseLateral ventricleNeurogenic nichePurinergic receptorsClamp recordingsExtracellular adenosineReceptorsCellular damageWidespread expressionInflammation
2008
Hypocretin/orexin and nociceptin/orphanin FQ coordinately regulate analgesia in a mouse model of stress-induced analgesia
Xie X, Wisor JP, Hara J, Crowder TL, LeWinter R, Khroyan TV, Yamanaka A, Diano S, Horvath TL, Sakurai T, Toll L, Kilduff TS. Hypocretin/orexin and nociceptin/orphanin FQ coordinately regulate analgesia in a mouse model of stress-induced analgesia. Journal Of Clinical Investigation 2008, 118: 2471-2481. PMID: 18551194, PMCID: PMC2423866, DOI: 10.1172/jci35115.Peer-Reviewed Original ResearchMeSH KeywordsAnalgesiaAnimalsAtaxin-3Behavior, AnimalBrainCalciumCytoplasmElectrophysiologyFemaleHypothalamus, PosteriorImmunohistochemistryIntracellular Signaling Peptides and ProteinsMaleMembrane PotentialsMiceMice, Inbred C57BLMice, TransgenicNarcotic AntagonistsNeuronsNeuropeptidesNociceptin ReceptorNuclear ProteinsOpioid PeptidesOrexinsPain ThresholdPresynaptic TerminalsReaction TimeReceptors, OpioidStress, PhysiologicalTetrodotoxinTranscription FactorsConceptsStress-induced analgesiaHcrt neuronsWild-type miceHypocretin/orexinNociceptin/orphanin FQMouse hypothalamic slicesCorticotropin-releasing factorPatch-clamp recordingsOrexin/ataxinPostsynaptic effectsPresynaptic releaseOrphanin FQElectron microscopic levelHypothalamic slicesSynaptic contactsHcrt-1Hcrt systemMouse modelAnalgesiaClamp recordingsPeptidergic systemsAction potentialsBrain tissueNeuronsInput resistanceRepetitive Firing Triggers Clustering of Kv2.1 Potassium Channels in Aplysia Neurons*
Zhang Y, McKay SE, Bewley B, Kaczmarek LK. Repetitive Firing Triggers Clustering of Kv2.1 Potassium Channels in Aplysia Neurons*. Journal Of Biological Chemistry 2008, 283: 10632-10641. PMID: 18276591, DOI: 10.1074/jbc.m800253200.Peer-Reviewed Original ResearchConceptsBag cell neuronsKv2.1 channelsPotassium channelsPlasma membraneC-terminusKv2.1 clustersKv2.1 potassium channelCell neuronsMammalian neuronsReproductive behaviorRectifier potassium channelFrequency-dependent broadeningRapid redistributionAplysia neuronsClamp recordingsAcid peptidePartial inactivationRing-like clustersPhysiological changesKv2.1Neuronal excitabilityCentral nervous systemAction potentialsGenesNervous system
2006
GFAP‐expressing cells in the postnatal subventricular zone display a unique glial phenotype intermediate between radial glia and astrocytes
Liu X, Bolteus AJ, Balkin DM, Henschel O, Bordey A. GFAP‐expressing cells in the postnatal subventricular zone display a unique glial phenotype intermediate between radial glia and astrocytes. Glia 2006, 54: 394-410. PMID: 16886203, DOI: 10.1002/glia.20392.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid Transport System X-AGAnimalsAnimals, NewbornAstrocytesBiomarkersCell DifferentiationCell ShapeConnexinsEpendymaGlial Fibrillary Acidic ProteinGlutamic AcidGreen Fluorescent ProteinsMembrane PotentialsMiceMice, TransgenicOrgan Culture TechniquesPatch-Clamp TechniquesPhenotypePotassiumPotassium ChannelsRecombinant Fusion ProteinsStem CellsTelencephalonConceptsGlial fibrillary acidic proteinPostnatal subventricular zoneSubventricular zoneGFAP-expressing cellsRadial gliaAstroglial marker glial fibrillary acidic proteinGlial propertiesEpendymal cellsGlutamate transportersGLT-1 glutamate transporterMarker glial fibrillary acidic proteinAMPA-type glutamate receptorsFunctional glutamate transportersFibrillary acidic proteinHuman glial fibrillary acidic proteinAdult subventricular zoneConnexin 43 expressionGap junction couplingNeural stem cellsMicroM Ba2Acute slicesAstrocytic functionsGlutamate receptorsGlial phenotypeClamp recordings
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
1999
Role in neuronal cell migration for high‐threshold potassium currents in the chicken hindbrain
Hendriks R, Morest D, Kaczmarek L. Role in neuronal cell migration for high‐threshold potassium currents in the chicken hindbrain. Journal Of Neuroscience Research 1999, 58: 805-814. PMID: 10583911, DOI: 10.1002/(sici)1097-4547(19991215)58:6<805::aid-jnr7>3.0.co;2-v.Peer-Reviewed Original ResearchConceptsChannel blockersPotassium currentWhole-cell patch-clamp recordingsPotassium conductanceN-type calcium channelsPotassium channelsHigh-threshold potassium currentsCalcium channel blockersSensitive potassium channelsPotassium channel blockerPatch-clamp recordingsTetraethylammonium chlorideChronic blockadeNovel potassium channelNeuronal cell migrationTEA exposureCalcium channelsClamp recordingsEmbryonic neuronsSynaptic functionOutward currentsNeuronal migrationElectrical excitabilityMigratory activityIndividual neuroblasts
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