Featured Publications
Expression of 4E-BP1 in juvenile mice alleviates mTOR-induced neuronal dysfunction and epilepsy
Nguyen LH, Xu Y, Mahadeo T, Zhang L, Lin TV, Born HA, Anderson AE, Bordey A. Expression of 4E-BP1 in juvenile mice alleviates mTOR-induced neuronal dysfunction and epilepsy. Brain 2021, 145: 1310-1325. PMID: 34849602, PMCID: PMC9128821, DOI: 10.1093/brain/awab390.Peer-Reviewed Original ResearchConceptsFocal malformationsCortical developmentJuvenile miceCortical spectral activitySpontaneous seizure frequencyIrregular firing patternNovel therapeutic opportunitiesNeuronal cytomegalySeizure frequencyEpilepsy onsetNeuronal abnormalitiesElectrophysiological alterationsIntractable epilepsyNeuronal dysfunctionJuvenile brainMouse modelMTOR pathwayTherapeutic opportunitiesMalformationsFiring patternsEpilepsyAberrant expressionNeurodevelopmental disordersMTOR effectorsMiceFilamin A inhibition reduces seizure activity in a mouse model of focal cortical malformations
Zhang L, Huang T, Teaw S, Nguyen LH, Hsieh LS, Gong X, Burns LH, Bordey A. Filamin A inhibition reduces seizure activity in a mouse model of focal cortical malformations. Science Translational Medicine 2020, 12 PMID: 32075941, DOI: 10.1126/scitranslmed.aay0289.Peer-Reviewed Original ResearchConceptsFocal cortical dysplasia type IITuberous sclerosis complexFocal cortical malformationsCortical malformationsSeizure frequencyReduced seizure frequencyVehicle-treated miceOnset of seizuresFilamin ALifelong epilepsyShort hairpin RNANeurological comorbiditiesNeuronal abnormalitiesSeizure activityEpilepsy treatmentSeizure onsetMouse modelAdult miceFLNA expressionPatientsCortical tissueMiceSeizuresMalformationsHairpin RNAEctopic HCN4 expression drives mTOR-dependent epilepsy in mice
Hsieh LS, Wen JH, Nguyen LH, Zhang L, Getz SA, Torres-Reveron J, Wang Y, Spencer DD, Bordey A. Ectopic HCN4 expression drives mTOR-dependent epilepsy in mice. Science Translational Medicine 2020, 12 PMID: 33208499, PMCID: PMC9888000, DOI: 10.1126/scitranslmed.abc1492.Peer-Reviewed Original ResearchConceptsFocal cortical dysplasia type IITuberous sclerosis complexFocal cortical malformationsPyramidal neuronsMouse modelHCN4 expressionCortical pyramidal neuronsOnset of seizuresIntracellular cAMP concentrationSeizure activityCortical malformationsRepetitive firingDiseased neuronsSeizuresAbnormal expressionNeuronsEpilepsyCausative linkSeizure mechanismsCAMP concentrationMechanistic targetHCN4Channel activityPatientsGene therapy
2023
Cannabinoid regulation of neurons in the dentate gyrus during epileptogenesis: Role of CB1R‐associated proteins and downstream pathways
Lafourcade C, Sparks F, Bordey A, Wyneken U, Mohammadi M. Cannabinoid regulation of neurons in the dentate gyrus during epileptogenesis: Role of CB1R‐associated proteins and downstream pathways. Epilepsia 2023, 64: 1432-1443. PMID: 36869624, DOI: 10.1111/epi.17569.Peer-Reviewed Original ResearchConceptsTemporal lobe epilepsyDentate gyrusStatus epilepticusProgression of epileptogenesisHippocampal dentate gyrusRole of CB1RCannabinoid regulationHippocampal excitabilityRecurrent seizuresLobe epilepsyRecent findingsEndogenous cannabinoidsBrain injuryClinical trialsEpileptic dischargesNeurologic disordersRetrograde messengerDG circuitryHippocampal formationNeuronal activityTherapeutic interventionsSeizuresEpileptogenesisExcessive excitationCannabinoids
2019
GATORopathies: The role of amino acid regulatory gene mutations in epilepsy and cortical malformations
Iffland PH, Carson V, Bordey A, Crino PB. GATORopathies: The role of amino acid regulatory gene mutations in epilepsy and cortical malformations. Epilepsia 2019, 60: 2163-2173. PMID: 31625153, PMCID: PMC7155771, DOI: 10.1111/epi.16370.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsCellular amino acid levelsRegulatory gene mutationsActivator RhebAmino acid levelsProtein complexesSingle geneRegulatory proteinsGene mutationsMechanistic targetNPRL3Rapamycin (mTOR) pathwayMTOR activationMTOR pathwayMutationsNPRL2MTOR inhibitionGenesFocal cortical dysplasia type IIaMTORDEPDC5ProteinPivotal rolePathwayRecent studiesNeuronal excitabilitymTOR Hyperactivity Levels Influence the Severity of Epilepsy and Associated Neuropathology in an Experimental Model of Tuberous Sclerosis Complex and Focal Cortical Dysplasia
Nguyen LH, Mahadeo T, Bordey A. mTOR Hyperactivity Levels Influence the Severity of Epilepsy and Associated Neuropathology in an Experimental Model of Tuberous Sclerosis Complex and Focal Cortical Dysplasia. Journal Of Neuroscience 2019, 39: 2762-2773. PMID: 30700531, PMCID: PMC6445990, DOI: 10.1523/jneurosci.2260-18.2019.Peer-Reviewed Original ResearchConceptsFocal cortical dysplasiaTuberous sclerosis complexSeverity of epilepsyRapamycin (mTOR) pathway genesPersonalized medicine strategiesAssociated neuropathologyCortical dysplasiaMouse modelActivity levelsPathogenic variantsEpileptogenic cortical malformationsNeuronal soma sizeMedicine strategiesPatient variantsMechanistic targetSevere epilepsy phenotypePreclinical drug testingHyperactivity levelsDose-dependent mannerMicroglial activationSeizure frequencyRecurrent seizuresCortical malformationsIntractable epilepsyClinical assessment
2014
Selective suppression of excessive GluN2C expression rescues early epilepsy in a tuberous sclerosis murine model
Lozovaya N, Gataullina S, Tsintsadze T, Tsintsadze V, Pallesi-Pocachard E, Minlebaev M, Goriounova NA, Buhler E, Watrin F, Shityakov S, Becker AJ, Bordey A, Milh M, Scavarda D, Bulteau C, Dorfmuller G, Delalande O, Represa A, Cardoso C, Dulac O, Ben-Ari Y, Burnashev N. Selective suppression of excessive GluN2C expression rescues early epilepsy in a tuberous sclerosis murine model. Nature Communications 2014, 5: 4563. PMID: 25081057, PMCID: PMC4143949, DOI: 10.1038/ncomms5563.Peer-Reviewed Original ResearchMeSH KeywordsAction PotentialsAnimalsAnticonvulsantsDisease Models, AnimalElectroencephalographyEpilepsyGene Expression RegulationHeterozygoteHumansMaleMiceMice, TransgenicMicrotomyNeocortexPatch-Clamp TechniquesPyrazolesQuinolonesReceptors, N-Methyl-D-AspartateSignal TransductionTissue Culture TechniquesTOR Serine-Threonine KinasesTuberous SclerosisTuberous Sclerosis Complex 1 ProteinTumor Suppressor ProteinsConceptsN-methyl-D-aspartate receptorsTuberous sclerosis complexGluN2C expressionSpiny stellate cellsEarly postnatal lifeGluN2C/DPromising molecular targetBlock seizuresMTOR-dependent mannerSurgical resectionCortical tubersEarly epilepsyUnprovoked seizuresPharmacoresistant epilepsyTSC patientsSeizure generationBrain malformationsFunctional upregulationMurine modelStellate cellsPostnatal lifeRecurrent excitationTumor suppressor geneEpilepsySeizures
2013
A circuitry and biochemical basis for tuberous sclerosis symptoms: from epilepsy to neurocognitive deficits
Feliciano DM, Lin TV, Hartman NW, Bartley CM, Kubera C, Hsieh L, Lafourcade C, O'Keefe RA, Bordey A. A circuitry and biochemical basis for tuberous sclerosis symptoms: from epilepsy to neurocognitive deficits. International Journal Of Developmental Neuroscience 2013, 31: 667-678. PMID: 23485365, PMCID: PMC3830611, DOI: 10.1016/j.ijdevneu.2013.02.008.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsTuberous sclerosis complexCortical lesionsBrain lesionsLoss of heterozygosityNeuronal functionNovel therapeutic targetNeuronal circuit formationMolecular mechanisms downstreamRecent mouse modelsNeurological manifestationsNeurological presentationTSC patientsBenign tumorsBrain malformationsDiscrete lesionsMouse modelNeuropsychiatric problemsTherapeutic targetSynaptic plasticityPerinatal developmentCircuit formationLesionsMTOR hyperactivityNeurocognitive deficitsPsychological impairment