2016
Normalizing translation through 4E-BP prevents mTOR-driven cortical mislamination and ameliorates aberrant neuron integration
Lin TV, Hsieh L, Kimura T, Malone TJ, Bordey A. Normalizing translation through 4E-BP prevents mTOR-driven cortical mislamination and ameliorates aberrant neuron integration. Proceedings Of The National Academy Of Sciences Of The United States Of America 2016, 113: 11330-11335. PMID: 27647922, PMCID: PMC5056085, DOI: 10.1073/pnas.1605740113.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAnimalsCarrier ProteinsCell Cycle ProteinsDendritic SpinesEukaryotic Initiation FactorsExcitatory Postsynaptic PotentialsGene Knockdown TechniquesGreen Fluorescent ProteinsMatrix Attachment Region Binding ProteinsMechanistic Target of Rapamycin Complex 1MiceNeurogliaNeuronsPhosphoproteinsProtein BiosynthesisRas Homolog Enriched in Brain ProteinRNA CapsRNA, Small InterferingSignal TransductionTOR Serine-Threonine KinasesTranscription FactorsConceptsBrain cytoarchitectureUpper layer cortical neuronsHyperactive mammalian targetDendritic hypertrophyCortical neuronsCap-dependent translationEctopic placementRadial gliaMammalian targetLate corticogenesisTranslational repressor eukaryotic initiation factor 4EEukaryotic initiation factor 4ENeurodevelopmental disordersProtein 1Rapamycin complex 1Molecular hallmarksInitiation factor 4EMechanisms downstreamCytoarchitectureMolecular identityMisplacementActive mutantHypertrophyGliaOveractivation
2011
Postnatal neurogenesis generates heterotopias, olfactory micronodules and cortical infiltration following single-cell Tsc1 deletion
Feliciano DM, Quon JL, Su T, Taylor MM, Bordey A. Postnatal neurogenesis generates heterotopias, olfactory micronodules and cortical infiltration following single-cell Tsc1 deletion. Human Molecular Genetics 2011, 21: 799-810. PMID: 22068588, PMCID: PMC3263992, DOI: 10.1093/hmg/ddr511.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnimals, NewbornCell MovementCerebral CortexDendritesElectroporationFemaleGene DeletionMaleMiceMice, TransgenicNeurogenesisNeurogliaNeuronsOlfactory BulbPeriventricular Nodular HeterotopiaSingle-Cell AnalysisTOR Serine-Threonine KinasesTuberous SclerosisTuberous Sclerosis Complex 1 ProteinTumor Suppressor ProteinsConceptsTuberous sclerosis complexSubventricular zoneBrain lesionsPostnatal subventricular zoneForebrain structuresTsc1 deletionHuman subventricular zoneCortical infiltrationNeurological symptomsNeuropsychiatric symptomsNon-invasive imagingOlfactory lesionsPostnatal neurogenesisTSC patientsPersistent infiltrationTransgenic miceAbnormal circuitsStructural abnormalitiesDendritic treeNeuronal precursorsLesionsEmbryonic neurogenesisNeurogenesisNeuronsMicronodules
2004
Bergmann glial GlyT1 mediates glycine uptake and release in mouse cerebellar slices
Huang H, Barakat L, Wang D, Bordey A. Bergmann glial GlyT1 mediates glycine uptake and release in mouse cerebellar slices. The Journal Of Physiology 2004, 560: 721-736. PMID: 15331688, PMCID: PMC1665288, DOI: 10.1113/jphysiol.2004.067801.Peer-Reviewed Original ResearchConceptsWhole-cell patch-clamp recordingsGlycine receptor blockerMouse cerebellar slicesNMDA receptor activationVoltage-dependent inward currentsExtracellular glycine levelsPatch-clamp recordingsDependent glycine transportersReceptor blockersInhibitory neurotransmitterNMDA receptorsGlycine levelsBergmann gliaCerebellar slicesInward currentsReceptor activationGlycine transporterGliaGlycine transportGlyT1Glycine uptakeBlockersAgonistsIntact systemNeuronesGlial Glutamate Transporters Limit Spillover Activation of Presynaptic NMDA Receptors and Influence Synaptic Inhibition of Purkinje Neurons
Huang H, Bordey A. Glial Glutamate Transporters Limit Spillover Activation of Presynaptic NMDA Receptors and Influence Synaptic Inhibition of Purkinje Neurons. Journal Of Neuroscience 2004, 24: 5659-5669. PMID: 15215288, PMCID: PMC6729224, DOI: 10.1523/jneurosci.1338-04.2004.Peer-Reviewed Original ResearchMeSH KeywordsAction PotentialsAmino Acid Transport System X-AGAnimalsAntiportersCalciumCerebellumCystineEvoked PotentialsGamma-Aminobutyric AcidGlutamic AcidIn Vitro TechniquesMiceNerve FibersNeural InhibitionNeurogliaPatch-Clamp TechniquesPurkinje CellsReceptors, N-Methyl-D-AspartateReceptors, PresynapticRyanodineSynaptic TransmissionConceptsGlial glutamate transportersMiniature IPSCsPurkinje neuronsGlutamate transportersSpontaneous IPSCsSynaptic inhibitionInhibitory synapsesNMDAR activationWhole-cell patch-clamp recordingsPresynaptic NMDA receptorsPaired-pulse ratioMouse cerebellar slicesNMDA receptor activationPresynaptic NMDA receptor activationPatch-clamp recordingsBergmann glial cellsBeta-benzyloxyaspartic acidAdjacent Purkinje neuronsCystine-glutamate antiporterMIPSC frequencyGABAergic terminalsGABAergic synapsesGlial cellsNMDA receptorsExcitatory synapsesDistinct electrophysiological alterations in dentate gyrus versus CA1 glial cells from epileptic humans with temporal lobe sclerosis
Bordey A, Spencer DD. Distinct electrophysiological alterations in dentate gyrus versus CA1 glial cells from epileptic humans with temporal lobe sclerosis. Epilepsy Research 2004, 59: 107-122. PMID: 15246115, DOI: 10.1016/j.eplepsyres.2004.04.004.Peer-Reviewed Original ResearchConceptsTemporal lobe epilepsyGlial cellsCA1 regionHilar astrocytesPutative astrocytesIntractable temporal lobe epilepsySclerotic human hippocampusTemporal lobe sclerosisNon-sclerotic hippocampiPatch-clamp recordingsIntercellular couplingSuch patientsEpileptic hippocampusLobe epilepsyCell-attached patchesPatient groupElectrophysiological alterationsDentate gyrusEpileptic humansChannel expressionAstrocytesElectrophysiological propertiesHippocampusTumor casesHuman hippocampus
2003
Modulation of Glutamatergic Transmission by Bergmann Glial Cells in Rat Cerebellum In Situ
Bordey A, Sontheimer H. Modulation of Glutamatergic Transmission by Bergmann Glial Cells in Rat Cerebellum In Situ. Journal Of Neurophysiology 2003, 89: 979-988. PMID: 12574474, DOI: 10.1152/jn.00904.2002.Peer-Reviewed Original ResearchMeSH Keywords6-Cyano-7-nitroquinoxaline-2,3-dioneAmino Acid Transport System X-AGAnimalsAspartic AcidCell CommunicationElectric StimulationExcitatory Amino Acid AgonistsExcitatory Amino Acid AntagonistsExcitatory Postsynaptic PotentialsGlutamic AcidMembrane PotentialsN-MethylaspartateNerve FibersNeurogliaPatch-Clamp TechniquesPurkinje CellsRatsRats, Sprague-DawleyReceptors, GlutamateSodiumSynaptic TransmissionConceptsExcitatory postsynaptic currentsBergmann glial cellsGlial cellsPurkinje cell synapseInward currentsCell synapseGlu transportPurkinje cellsSpontaneous excitatory postsynaptic currentsAbsence of TTXPresynaptic glutamate releaseCerebellar brain slicesSpontaneous EPSC frequencyPatch-clamp recordingsSingle glial cellsIonotropic Glu receptorsParallel fibersEPSC frequencyPresynaptic effectsExcitatory transmissionGlutamate releaseGlutamatergic transmissionPostsynaptic currentsGlu receptorsBrain slices
2002
GAT-1 and Reversible GABA Transport in Bergmann Glia in Slices
Barakat L, Bordey A. GAT-1 and Reversible GABA Transport in Bergmann Glia in Slices. Journal Of Neurophysiology 2002, 88: 1407-1419. PMID: 12205162, DOI: 10.1152/jn.2002.88.3.1407.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBiological TransportCarrier ProteinsCerebellumElectrophysiologyGABA Plasma Membrane Transport ProteinsGamma-Aminobutyric AcidIn Vitro TechniquesMembrane ProteinsMembrane Transport ProteinsNeurogliaOrganic Anion TransportersPatch-Clamp TechniquesRatsRats, Sprague-DawleyReceptors, GABA-AConceptsGAT-1Bergmann gliaInward currentsGABA transporterWhole-cell patch-clamp recordingsCell patch-clamp recordingsGlial GABA uptakePatch-clamp recordingsRat cerebellar slicesGABA perfusionReceptor blockersAmbient GABANNC-711Extracellular GABAGABA effluxGABA uptakeGABA receptorsCerebellar slicesGAT subtypesNipecotic acidReceptor activationGABABlockersGliaOutward currentsCarrier‐mediated uptake and release of taurine from Bergmann glia in rat cerebellar slices
Barakat L, Wang D, Bordey A. Carrier‐mediated uptake and release of taurine from Bergmann glia in rat cerebellar slices. The Journal Of Physiology 2002, 541: 753-767. PMID: 12068038, PMCID: PMC2290349, DOI: 10.1113/jphysiol.2001.015834.Peer-Reviewed Original ResearchConceptsRat cerebellar slicesBergmann gliaGuanidinoethyl sulphonateCerebellar slicesTaurine transporterInward currentsWhole-cell patch-clamp recordingsTaurine uptakeGABA receptor blockersTaurine transporter inhibitorRelease of taurinePatch-clamp recordingsDependent taurine transporterOrder of potencyTaurine perfusionReceptor blockersIntracellular taurineIschemic conditionsCarrier-mediated uptakeTaurine effluxOutward currentsTransporter currentsTransporter inhibitorsIntracellular perfusionGlia
2000
Ion channel expression by astrocytes in situ: Comparison of different CNS regions
Bordey A, Sontheimer H. Ion channel expression by astrocytes in situ: Comparison of different CNS regions. Glia 2000, 30: 27-38. PMID: 10696142, DOI: 10.1002/(sici)1098-1136(200003)30:1<27::aid-glia4>3.0.co;2-#.Peer-Reviewed Original ResearchConceptsBergmann glial cellsIon channel complementGlial cellsIon channel expressionDifferent CNS regionsCNS regionsChannel expressionPercentage of astrocytesTransient A-typeCerebellar Bergmann glial cellsChannel complementPatch-clamp recordingsVoltage-activated currentsPostnatal day 17Whole-cell currentsIon channelsVoltage-gated ion channelsBrain slicesRat astrocytesAstrocytesDay 17Low input resistanceInput resistanceCNSInitial recording
1999
Differential Inhibition of Glial K+ Currents by 4-AP
Bordey A, Sontheimer H. Differential Inhibition of Glial K+ Currents by 4-AP. Journal Of Neurophysiology 1999, 82: 3476-3487. PMID: 10601476, DOI: 10.1152/jn.1999.82.6.3476.Peer-Reviewed Original ResearchMeSH Keywords4-AminopyridineAction PotentialsAnimalsAstrocytesCells, CulturedDelayed Rectifier Potassium ChannelsElectrophysiologyLarge-Conductance Calcium-Activated Potassium ChannelsNeurogliaPatch-Clamp TechniquesPotassium Channel BlockersPotassium ChannelsPotassium Channels, Calcium-ActivatedPotassium Channels, Inwardly RectifyingPotassium Channels, Voltage-GatedRatsRats, Sprague-DawleySpinal CordTetraethylammoniumConceptsAcute spinal cord slicesSpinal cord slicesConcentration-dependent blockPotassium channel typesType currentsDose-dependent inhibitorNeuronal action potentialsCord slicesSpinal cordChannel blockersEpileptiform dischargesBrain slicesAction potentialsHomeostatic functionsA-currentAstrocytesDifferential inhibitionRepolarizationMembrane potentialChannel typesSlicesBlockersGlialCord
1998
Properties of human glial cells associated with epileptic seizure foci
Bordey A, Sontheimer H. Properties of human glial cells associated with epileptic seizure foci. Epilepsy Research 1998, 32: 286-303. PMID: 9761328, DOI: 10.1016/s0920-1211(98)00059-x.Peer-Reviewed Original ResearchConceptsSeizure focusGlial cellsMesio-temporal lobe epilepsyWhole-cell patch-clamp recordingsLucifer YellowControl rat hippocampusPathophysiology of seizuresSlow action potentialsCurrent-clamp studiesGFAP-positive astrocytesEpileptic seizure fociPatch-clamp recordingsHuman glial cellsLobe epilepsyAcute slicesRat hippocampusEpilepsy patientsClamp studiesRat astrocytesAstrocytesIntermediate filaments GFAPNormal astrocytesAction potentialsPhysiological propertiesBranched processes
1995
Kinetics of A-currents in sympathetic preganglionic neurones and glial cells
Bordey A, Feltz P, Trouslard J. Kinetics of A-currents in sympathetic preganglionic neurones and glial cells. Neuroreport 1995, 7: 37-40. PMID: 8742411, DOI: 10.1097/00001756-199512290-00008.Peer-Reviewed Original Research