2015
The multifaceted subventricular zone astrocyte: From a metabolic and pro-neurogenic role to acting as a neural stem cell
Platel JC, Bordey A. The multifaceted subventricular zone astrocyte: From a metabolic and pro-neurogenic role to acting as a neural stem cell. Neuroscience 2015, 323: 20-28. PMID: 26546469, PMCID: PMC4821790, DOI: 10.1016/j.neuroscience.2015.10.053.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsVentricular-subventricular zoneNeural progenitor cellsPro-neurogenic roleHippocampal dentate gyrusNeural stem cellsSubgranular zoneNewborn neuronsNeurogenic propertiesDentate gyrusNew neuronsLateral ventricleAdult brainMature astrocytesTranscription factor expressionNeurogenic fateNeurophysiological characteristicsFactor expressionAstrocytesBlood vesselsProgenitor cellsMetabolic couplingSurvival cuesNeuronsStem cellsCells
2010
Prostaglandin E2 induces glutamate release from subventricular zone astrocytes.
Dave KA, Platel JC, Huang F, Tian D, Stamboulian-Platel S, Bordey A. Prostaglandin E2 induces glutamate release from subventricular zone astrocytes. Neuron Glia Biology 2010, 6: 201-7. PMID: 21211110, DOI: 10.1017/s1740925x10000244.Peer-Reviewed Original ResearchConceptsAmbient glutamate levelsProstaglandin E2Subventricular zoneGlutamate releaseAstrocyte-like cellsGlutamate levelsGramicidin-perforated patch-clamp techniquesIntracellular Ca2Application of PGE2Aspartate receptor channelsPatch-clamp techniqueLateral ventricleSVZ cellsPGE2 releaseChoroid plexusMature astrocytesNeuroblast survivalEnzyme immunoassayReceptor channelsAstrocytesE2Ca2CellsReleaseLesser extentNMDA Receptors Activated by Subventricular Zone Astrocytic Glutamate Are Critical for Neuroblast Survival Prior to Entering a Synaptic Network
Platel JC, Dave KA, Gordon V, Lacar B, Rubio ME, Bordey A. NMDA Receptors Activated by Subventricular Zone Astrocytic Glutamate Are Critical for Neuroblast Survival Prior to Entering a Synaptic Network. Neuron 2010, 65: 859-872. PMID: 20346761, PMCID: PMC2861893, DOI: 10.1016/j.neuron.2010.03.009.Peer-Reviewed Original ResearchConceptsAdult-born neuronsNMDA receptorsNMDAR activitySynaptic networksNeuroblast survivalGlutamate release machineryAstrocyte-like cellsLoss of neuroblastsNeonatal electroporationSpecialized astrocytesAstrocytic glutamateOlfactory bulbVesicular releaseRelease machineryReceptorsNeuroblastsNeuronsIntercellular mechanismsSurvivalGlutamateNeuroblast apoptosisAstrocytesNeurogenesisNeurotransmittersSVZ
2008
The astrocyte odyssey
Wang DD, Bordey A. The astrocyte odyssey. Progress In Neurobiology 2008, 86: 342-367. PMID: 18948166, PMCID: PMC2613184, DOI: 10.1016/j.pneurobio.2008.09.015.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsAdult neurogenic zonesFunction of astrocytesAstrocytic calcium wavesPopulation of astrocytesDifferent molecular identitiesNeural stem cellsGlutamate releaseNeurogenic zonesNeurogenic nicheNeuronal activityNervous systemStem cell characteristicsAstrocytesNeuronsCalcium wavesVivo roleSupport cellsStem cellsEqual numberCellsDiverse populationsMolecular identityCell characteristicsPioneer discoveriesCentral player
2004
Distinct 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
2001
Electrophysiological Characteristics of Reactive Astrocytes in Experimental Cortical Dysplasia
Bordey A, Lyons SA, Hablitz JJ, Sontheimer H. Electrophysiological Characteristics of Reactive Astrocytes in Experimental Cortical Dysplasia. Journal Of Neurophysiology 2001, 85: 1719-1731. PMID: 11287494, DOI: 10.1152/jn.2001.85.4.1719.Peer-Reviewed Original ResearchConceptsGap junction couplingReactive gliosisFreeze lesionGlial fibrillary acidic protein immunoreactivityWhole-cell patch-clamp recordingsCell patch-clamp recordingsExperimental cortical dysplasiaCortical layers IPatch-clamp recordingsPostnatal day 16Reduced gap junction couplingNormal neuronal functionDysplastic neocortexP24 ratsDysplastic cortexReactive astrocytesCortical dysplasiaNeuronal dysfunctionProtein immunoreactivityElectrophysiological characteristicsAstrocytesChannel expressionNeuronal functionMicrosulcusLayer I
2000
Reactive astrocytes show enhanced inwardly rectifying K+ currents in situ
Bordey A, Hablitz JJ, Sontheimer H. Reactive astrocytes show enhanced inwardly rectifying K+ currents in situ. Neuroreport 2000, 11: 3151-3155. PMID: 11043540, DOI: 10.1097/00001756-200009280-00022.Peer-Reviewed Original ResearchIon 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
Passive Glial Cells, Fact or Artifact?
Bordey A, Sontheimer H. Passive Glial Cells, Fact or Artifact? The Journal Of Membrane Biology 1998, 166: 213-222. PMID: 9843595, DOI: 10.1007/s002329900463.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsVoltage-activated currentsPassive astrocytesVoltage-dependent outwardCell accessAcute tissue slicesBath Ca2Glial cellsRat hippocampusSlice recordingsCultured astrocytesAstrocytesPipette solutionEffect of Ca2Tissue slicesMembrane capacitanceSuch cellsSubpopulationsCellsTransient maskingConcentration of Ca2Ca2SuperfusionHippocampusDoseProperties 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 processesElectrophysiological Properties of Human Astrocytic Tumor Cells In Situ: Enigma of Spiking Glial Cells
Bordey A, Sontheimer H. Electrophysiological Properties of Human Astrocytic Tumor Cells In Situ: Enigma of Spiking Glial Cells. Journal Of Neurophysiology 1998, 79: 2782-2793. PMID: 9582244, DOI: 10.1152/jn.1998.79.5.2782.Peer-Reviewed Original ResearchMeSH KeywordsAction PotentialsAstrocytesAstrocytomaBrain NeoplasmsCarcinomaCell DifferentiationChildChoroid Plexus NeoplasmsDelayed Rectifier Potassium ChannelsHumansIon TransportNeoplasm ProteinsNeoplastic Stem CellsNerve Tissue ProteinsPatch-Clamp TechniquesPotassiumPotassium Channel BlockersPotassium ChannelsPotassium Channels, Inwardly RectifyingPotassium Channels, Voltage-GatedSodium Channel BlockersSodium ChannelsSpinal CordTetraethylammoniumTetrodotoxinConceptsAstrocytoma cellsTumor cellsGlial cellsWhole-cell patch-clamp recordingsCell patch-clamp recordingsAction potential-like responsesOlder pediatric patientsSpinal cord astrocytesHuman astrocytic tumor cellsSensitive sodium currentsGroup of tumorsLow-grade astrocytomasPatch-clamp recordingsOutward potassium currentGlial tumor cellsAstrocytic tumor cellsGeneration of spikesHigh input resistancePeritumoral astrocytesPediatric patientsMicroM Ba2Pilocytic astrocytomaPotassium currentAstrocytesElectrophysiological properties