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 therapyConvergent and Divergent Mechanisms of Epileptogenesis in mTORopathies
Nguyen LH, Bordey A. Convergent and Divergent Mechanisms of Epileptogenesis in mTORopathies. Frontiers In Neuroanatomy 2021, 15: 664695. PMID: 33897381, PMCID: PMC8064518, DOI: 10.3389/fnana.2021.664695.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsPI3K-mTOR pathwayCortical developmentGene variantsPotential therapeutic strategyIntractable epilepsyNeuronal placementTherapeutic strategiesAnimal modelsEpilepsyElectrophysiological phenotypeNeurodevelopmental disordersRapamycin complex 1Mechanistic targetEpileptogenesisIndependent mechanismsMTORopathiesGATOR1 complexPersonalized medicineDivergent mechanismsMosaic patternEverolimusMalformationsHyperactivityPathwayVariantsConvulsive seizures from experimental focal cortical dysplasia occur independently of cell misplacement
Hsieh LS, Wen JH, Claycomb K, Huang Y, Harrsch FA, Naegele JR, Hyder F, Buchanan GF, Bordey A. Convulsive seizures from experimental focal cortical dysplasia occur independently of cell misplacement. Nature Communications 2016, 7: 11753. PMID: 27249187, PMCID: PMC4895394, DOI: 10.1038/ncomms11753.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell MovementCognitive DysfunctionDisease Models, AnimalFemaleGene Expression RegulationGenes, ReporterGreen Fluorescent ProteinsHumansMaleMalformations of Cortical DevelopmentMiceNeuronsPrefrontal CortexSeizuresSignal TransductionSirolimusTOR Serine-Threonine KinasesWhite MatterConceptsFocal cortical dysplasiaCortical dysplasiaType II focal cortical dysplasiaWhite matter heterotopiasLayer 2/3 neuronsLife-long treatmentTonic-clonic seizuresNormal survival rateMedial prefrontal cortexLocal malformationsConvulsive seizuresPharmacoresistant epilepsySeizure activitySeizure generationSeizure occurrenceCommon causeCortical developmentMurine modelNeurocognitive impairmentSurvival rateSeizuresRapamycin withdrawalPrefrontal cortexMTOR activityRapamycin treatment
2024
Reducing Filamin A Restores Cortical Synaptic Connectivity and Early Social Communication Following Cellular Mosaicism in Autism Spectrum Disorder Pathways
Binder M, Escobar I, Xu Y, Sokolov A, Zhang L, Bordey A. Reducing Filamin A Restores Cortical Synaptic Connectivity and Early Social Communication Following Cellular Mosaicism in Autism Spectrum Disorder Pathways. Journal Of Neuroscience 2024, 44: e1245232024. PMID: 39164108, PMCID: PMC11426378, DOI: 10.1523/jneurosci.1245-23.2024.Peer-Reviewed Original ResearchPup isolation callsFilamin AIsolation callsAutism spectrum disorderSigns of autism spectrum disorderPyramidal neuronsConstitutively active mutantCommunication deficitsDownstream of ERK1/2MTOR complex 1Actin crosslinkingSynaptic connectionsExpression of RhebSpine densityActive mutantActive RhebCore pathwaysRhebCortical synaptic connectivityCellular mosaicismConstitutively active RhebOne-month-old miceExcitatory synaptic activityNeocortex of miceSocial communicationmTOR in Acquired and Genetic Models of Epilepsy
Wong M, Bordey A, Danzer S. mTOR in Acquired and Genetic Models of Epilepsy. 2024, 45-74. DOI: 10.1093/med/9780197549469.003.0004.Peer-Reviewed Original ResearchDisrupted mTOR signalingMTOR signalingDysregulation of mTOR signalingCellular functionsMTOR pathway signalingAbstract MutationsTarget of rapamycinPathway signalingSignaling pathwayGenetic modelsMTOR pathwayPathway disruptionMTORPathwayNongenetic causesRegulate brain developmentGeneral patternTraumatic brain injuryTuberous sclerosis complexGenetic model of epilepsyPatterns of brain pathologyPotential mechanismsSignalBrain developmentModulator of epileptogenesisThe mTOR pathway genes MTOR, Rheb, Depdc5, Pten, and Tsc1 have convergent and divergent impacts on cortical neuron development and function
Nguyen L, Xu Y, Nair M, Bordey A. The mTOR pathway genes MTOR, Rheb, Depdc5, Pten, and Tsc1 have convergent and divergent impacts on cortical neuron development and function. ELife 2024, 12: rp91010. PMID: 38411613, PMCID: PMC10942629, DOI: 10.7554/elife.91010.Peer-Reviewed Original ResearchConceptsMouse medial prefrontal cortexMedial prefrontal cortexFocal malformations of cortical developmentMalformations of cortical developmentExcitatory synaptic activityExcitatory synaptic transmissionCortical neuron developmentPyramidal neuron morphologyMechanisms of hyperexcitabilityResponse to therapeutic interventionsMTORC1 signalingGene-specific mechanismsPrefrontal cortexFocal malformationsBrain somatic mutationsMTOR complex 1Membrane excitabilityBiallelic inactivationClinical manifestationsGene mutationsNetwork hyperexcitabilitySynaptic transmissionSynaptic activityIntractable epilepsyRepressor geneThe mTOR pathway genes MTOR, Rheb, Depdc5, Pten, and Tsc1 have convergent and divergent impacts on cortical neuron development and function
Nguyen L, Xu Y, Nair M, Bordey A. The mTOR pathway genes MTOR, Rheb, Depdc5, Pten, and Tsc1 have convergent and divergent impacts on cortical neuron development and function. ELife 2024, 12 DOI: 10.7554/elife.91010.3.Peer-Reviewed Original ResearchMouse medial prefrontal cortexMedial prefrontal cortexFocal malformations of cortical developmentMalformations of cortical developmentExcitatory synaptic activityExcitatory synaptic transmissionCortical neuron developmentPyramidal neuron morphologyMechanisms of hyperexcitabilityResponse to therapeutic interventionsMTORC1 signalingGene-specific mechanismsPrefrontal cortexFocal malformationsBrain somatic mutationsMTOR complex 1Membrane excitabilityBiallelic inactivationClinical manifestationsGene mutationsNetwork hyperexcitabilitySynaptic transmissionSynaptic activityIntractable epilepsyRepressor gene
2023
Semi-natural housing rescues social behavior and reduces repetitive exploratory behavior of BTBR autistic-like mice
Binder M, Bordey A. Semi-natural housing rescues social behavior and reduces repetitive exploratory behavior of BTBR autistic-like mice. Scientific Reports 2023, 13: 16260. PMID: 37758896, PMCID: PMC10533821, DOI: 10.1038/s41598-023-43558-0.Peer-Reviewed Original ResearchIn Utero Electroporated Neurons for Medium-Throughput Screening of Compounds Regulating Neuron Morphology
Sokolov A, Aurich M, Bordey A. In Utero Electroporated Neurons for Medium-Throughput Screening of Compounds Regulating Neuron Morphology. ENeuro 2023, 10: eneuro.0160-23.2023. PMID: 37620147, PMCID: PMC10464655, DOI: 10.1523/eneuro.0160-23.2023.Peer-Reviewed Original ResearchConceptsSomatosensory cortexCortical pyramidal neuronsTreatment of epilepsyNeurite overgrowthNeurologic disabilityPyramidal neuronsSoma sizeNovel agentsCircuit alterationsSide effectsMorphologic assessmentMouse neuronsRelated disordersDiseased neuronsMTOR activatorDrug efficacyCandidate therapeuticsNeuronsNeuron morphologyMTOR activityMedium-throughput screeningNeurodevelopmental disordersNeurite lengthMorphologic measurementsDisorders4E-BP1 expression in embryonic postmitotic neurons mitigates mTORC1-induced cortical malformations and behavioral seizure severity but does not prevent epilepsy in mice
Nguyen L, Sharma M, Bordey A. 4E-BP1 expression in embryonic postmitotic neurons mitigates mTORC1-induced cortical malformations and behavioral seizure severity but does not prevent epilepsy in mice. Frontiers In Neuroscience 2023, 17: 1257056. PMID: 37680968, PMCID: PMC10480503, DOI: 10.3389/fnins.2023.1257056.Peer-Reviewed Original ResearchBehavioral seizure severityCortical malformationsSeizure frequencySeizure severityRadial gliaLayer 2/3 pyramidal neuronsCortical layer 2/3 pyramidal neuronsFocal cortical malformationsBehavioral seizuresNeuronal hypertrophyIntractable seizuresPyramidal neuronsSeizure activityRapamycin complex 1 (mTORC1) pathwayEctopic neuronsSeizure preventionMigratory neuronsWhite matterSeizuresNeuronsMalformationsMechanistic targetRecent evidenceSeverityEpilepsyThe Novel Somatosensory Nose-Poke Adapted Paradigm (SNAP) Is an Effective Tool to Assess Differences in Tactile Sensory Preferences in Autistic-Like Mice
Binder M, Bordey A. The Novel Somatosensory Nose-Poke Adapted Paradigm (SNAP) Is an Effective Tool to Assess Differences in Tactile Sensory Preferences in Autistic-Like Mice. ENeuro 2023, 10: eneuro.0478-22.2023. PMID: 37596047, PMCID: PMC10470849, DOI: 10.1523/eneuro.0478-22.2023.Peer-Reviewed Original ResearchAdvances in glioma models using in vivo electroporation to highjack neurodevelopmental processes
Zhang L, Bordey A. Advances in glioma models using in vivo electroporation to highjack neurodevelopmental processes. Biochimica Et Biophysica Acta (BBA) - Reviews On Cancer 2023, 1878: 188951. PMID: 37433417, DOI: 10.1016/j.bbcan.2023.188951.Peer-Reviewed Original ResearchKIF4 Gene Variant’s Disruption of PARP1 Signaling Increases Anxiety and Seizure Susceptibility
Bordey A. KIF4 Gene Variant’s Disruption of PARP1 Signaling Increases Anxiety and Seizure Susceptibility. Epilepsy Currents 2023, 23: 257-258. PMID: 37662464, PMCID: PMC10470092, DOI: 10.1177/15357597231175007.Peer-Reviewed Original ResearchSeizure susceptibilityDevelopmental delayLower seizure thresholdHippocampal pyramidal neuronsSeizure susceptibility phenotypesCommon neurological diseasesPoly (ADP-ribose) polymeraseMild developmental delayKCC2 pathwaySeizure thresholdPyramidal neuronsEpilepsy treatmentMember of kinesinNeurological diseasesNeurological disordersBehavioral testsNeuronal morphologyMutant miceGenetic abnormalitiesIncreases anxietyPotential targetIntellectual disabilityEpilepsySignaling pathwaysSusceptibility phenotypeCannabinoid 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
2022
Loss of PTEN phosphorylation via single point mutation alters cortical connectivity and behaviour
Binder M, Bordey A. Loss of PTEN phosphorylation via single point mutation alters cortical connectivity and behaviour. Brain 2022, 145: 3343-3344. PMID: 36148582, PMCID: PMC10233246, DOI: 10.1093/brain/awac350.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsCurrent Review in Basic Science: Animal Models of Focal Cortical Dysplasia and Epilepsy
Nguyen LH, Bordey A. Current Review in Basic Science: Animal Models of Focal Cortical Dysplasia and Epilepsy. Epilepsy Currents 2022, 22: 234-240. PMID: 36187145, PMCID: PMC9483763, DOI: 10.1177/15357597221098230.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsFocal cortical dysplasiaFCD type IIAnimal modelsCortical dysplasiaMechanisms of epileptogenesisNumerous animal modelsElectroclinical featuresIntractable epilepsyType IIFCD subtypesFrequent causeCortical developmentPrevalent causeNovel therapeuticsEpilepsyEarly lifeGene mutationsClinical applicationCurrent reviewDysplasiaTechnical considerationsMTORBasic scienceCauseNeuro2D Lies at the Nexus of Autism, Epilepsy, and Intellectual Disabilities
Bordey A. Neuro2D Lies at the Nexus of Autism, Epilepsy, and Intellectual Disabilities. Epilepsy Currents 2022, 22: 132-134. PMID: 35444512, PMCID: PMC8988728, DOI: 10.1177/15357597211073424.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsInhibition of MEK-ERK signaling reduces seizures in two mouse models of tuberous sclerosis complex
Nguyen LH, Leiser SC, Song D, Brunner D, Roberds SL, Wong M, Bordey A. Inhibition of MEK-ERK signaling reduces seizures in two mouse models of tuberous sclerosis complex. Epilepsy Research 2022, 181: 106890. PMID: 35219048, PMCID: PMC8930622, DOI: 10.1016/j.eplepsyres.2022.106890.Peer-Reviewed Original ResearchConceptsTuberous sclerosis complexMouse modelTSC mouse modelsDevelopmental brain malformationsMEK-ERKNovel treatment targetsMEK inhibitor PD0325901Intractable epilepsySeizure activityTSC patientsSeizure suppressionBrain malformationsMTOR inhibitorsTreatment targetsMEK-ERK activitySeizuresTSC neuropathologyPotential alternative strategyMEK-ERK inhibitionInhibitor PD0325901Monogenic disordersInhibitionMTORTreatmentEverolimus