2001
Three Pairs of Cysteine Residues Mediate Both Redox and Zn2+ Modulation of the NMDA Receptor
Choi Y, Chen H, Lipton S. Three Pairs of Cysteine Residues Mediate Both Redox and Zn2+ Modulation of the NMDA Receptor. Journal Of Neuroscience 2001, 21: 392-400. PMID: 11160420, PMCID: PMC6763802, DOI: 10.1523/jneurosci.21-02-00392.2001.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBinding SitesCells, CulturedCysteineDithiothreitolDose-Response Relationship, DrugDrug SynergismGlycineHistidineMesylatesMutagenesis, Site-DirectedN-MethylaspartateOocytesOxidation-ReductionPatch-Clamp TechniquesReceptors, N-Methyl-D-AspartateStructure-Activity RelationshipSulfhydryl ReagentsTransfectionXenopusZinc
2000
Involvement of Activated Caspase‐3‐Like Proteases in N‐Methyl‐D‐Aspartate‐Induced Apoptosis in Cerebrocortical Neurons
Tenneti L, Lipton S. Involvement of Activated Caspase‐3‐Like Proteases in N‐Methyl‐D‐Aspartate‐Induced Apoptosis in Cerebrocortical Neurons. Journal Of Neurochemistry 2000, 74: 134-142. PMID: 10617114, DOI: 10.1046/j.1471-4159.2000.0740134.x.Peer-Reviewed Original ResearchConceptsCerebrocortical neuronsNeuronal deathNeuronal apoptosisIncubation of neuronsNMDA receptor activationCaspase-3Time-dependent increaseCentral neuronsNMDA stimulationExcessive activationGlutamate receptorsMild insultReceptor activationCaspase-3-like proteasesDouble labelingNeurodegenerative diseasesNMDANeuronsApoptotic cellsConcordant resultsApoptosisPossible activationActivation of caspasesInsultAffinity labeling technique
1999
Identification and Mechanism of Action of Two Histidine Residues Underlying High-Affinity Zn2+ Inhibition of the NMDA Receptor
Choi Y, Lipton S. Identification and Mechanism of Action of Two Histidine Residues Underlying High-Affinity Zn2+ Inhibition of the NMDA Receptor. Neuron 1999, 23: 171-180. PMID: 10402203, DOI: 10.1016/s0896-6273(00)80763-1.Peer-Reviewed Original ResearchConceptsNR1/NR2B receptorsNR1/NR2ANR2B receptorsN-methyl-D-aspartate receptor activityMechanism of actionExtracellular N-terminal domainXenopus oocyte expression systemNMDA receptorsVoltage-dependent componentVoltage-dependent blockOocyte expression systemReceptor activityHigh-affinity Zn2Recombinant NR1/NR2ANR2AProton inhibitionReceptorsInhibitionZinc inhibitionCritical determinantHigh affinityNMDANMDAR
1998
Increased NMDA current and spine density in mice lacking the NMDA receptor subunit NR3A
Das S, Sasaki Y, Rothe T, Premkumar L, Takasu M, Crandall J, Dikkes P, Conner D, Rayudu P, Cheung W, Chen H, Lipton S, Nakanishi N. Increased NMDA current and spine density in mice lacking the NMDA receptor subunit NR3A. Nature 1998, 393: 377-381. PMID: 9620802, DOI: 10.1038/30748.Peer-Reviewed Original ResearchConceptsNMDA receptorsReceptor subunit NR1Synaptic refinementSpine densityNMDA receptor subunit NR3ANMDA responsesNMDA subclassSmall unitary conductanceNMDAR activitySubunit NR1NMDAR subunitsCerebrocortical neuronsDendritic spinesSynaptic plasticityNR1 subunitMice resultsSingle-channel recordingsGenetic knockoutSynaptic elementsHeteromultimeric channelsNR1NR3AXenopus oocytesUnitary conductanceNMDA
1997
Mechanism of memantine block of NMDA‐activated channels in rat retinal ganglion cells: uncompetitive antagonism.
Chen H, Lipton S. Mechanism of memantine block of NMDA‐activated channels in rat retinal ganglion cells: uncompetitive antagonism. The Journal Of Physiology 1997, 499: 27-46. PMID: 9061638, PMCID: PMC1159335, DOI: 10.1113/jphysiol.1997.sp021909.Peer-Reviewed Original ResearchConceptsRat retinal ganglion cellsRetinal ganglion cellsMicroM memantineGanglion cellsUncompetitive antagonismAction of memantineDegree of blockadeConcentrations of NMDARapid superfusion systemWhole-cell recordingsConcentration of agonistDose-response relationshipLow agonist concentrationsNon-competitive actionDose-response curveOpen channel blockerOpen-channel blockadeMemantine actionEndogenous glutamateMicroM NMDAMemantine concentrationsSuperfusion systemMemantine blockMemantineNMDA
1995
Apoptosis and necrosis: two distinct events induced, respectively, by mild and intense insults with N-methyl-D-aspartate or nitric oxide/superoxide in cortical cell cultures.
Bonfoco E, Krainc D, Ankarcrona M, Nicotera P, Lipton S. Apoptosis and necrosis: two distinct events induced, respectively, by mild and intense insults with N-methyl-D-aspartate or nitric oxide/superoxide in cortical cell cultures. Proceedings Of The National Academy Of Sciences Of The United States Of America 1995, 92: 7162-7166. PMID: 7638161, PMCID: PMC41299, DOI: 10.1073/pnas.92.16.7162.Peer-Reviewed Original ResearchConceptsForm of neurotoxicityN-methyl-D-aspartate receptor-mediated neurotoxicityCell damageChronic neurologic disordersNeuronal cell damageCortical cell culturesFinal common pathwayNitric oxide/Superoxide dismutaseS-nitrosocysteineAIDS dementiaNecrotic cell damageFocal ischemiaAcute swellingInitial insultCortical neuronsNeurologic disordersAlzheimer's diseaseNitric oxideNMDANeurodegenerative diseasesHuntington's diseaseIntense exposureNeurotoxicityCommon pathwayTranscriptional or translational inhibition blocks low dose NMDA-mediated cell death
Dreyer E, Zhang D, Lipton S. Transcriptional or translational inhibition blocks low dose NMDA-mediated cell death. Neuroreport 1995, 6: 942-944. PMID: 7612888, DOI: 10.1097/00001756-199504190-00029.Peer-Reviewed Original Research
1994
Identification of two cysteine residues that are required for redox modulation of the NMDA subtype of glutamate receptor
Sullivan J, Traynelis S, Chen H, Escobar W, Heinemann S, Lipton S. Identification of two cysteine residues that are required for redox modulation of the NMDA subtype of glutamate receptor. Neuron 1994, 13: 929-936. PMID: 7524561, DOI: 10.1016/0896-6273(94)90258-5.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCysteineDithiothreitolElectrophysiologyFemaleIon Channel GatingIon ChannelsMolecular Sequence DataMutagenesis, Site-DirectedN-MethylaspartateOocytesOxidation-ReductionPatch-Clamp TechniquesRatsReceptors, N-Methyl-D-AspartateRecombinant ProteinsSpermineStructure-Activity RelationshipXenopusGreater sensitivity of larger retinal ganglion cells to NMDA-mediated cell death
Dreyer E, Pan Z, Storm S, Lipton S. Greater sensitivity of larger retinal ganglion cells to NMDA-mediated cell death. Neuroreport 1994, 5: 629-631. PMID: 7912962, DOI: 10.1097/00001756-199401000-00024.Peer-Reviewed Original ResearchConceptsLarge retinal ganglion cellsRetinal ganglion cellsGanglion cellsGlutamate-mediated cell deathN-methyl-D-aspartate (NMDA) subtypeIntact rat eyesCell deathNeuronal lossGlutamate toxicityGlutamate receptorsRat eyesPattern of lossNMDAGlaucomaToxic effectsDeathCellsGlutamateTissue cultureGreater sensitivitySubtypesNeuronsSimilar fashionReceptors
1992
Blockade of NMDA receptor-mediated mobilization of intracellular Ca2+ prevents neurotoxicity
Lei S, Zhang D, Abele A, Lipton S. Blockade of NMDA receptor-mediated mobilization of intracellular Ca2+ prevents neurotoxicity. Brain Research 1992, 598: 196-202. PMID: 1486480, DOI: 10.1016/0006-8993(92)90183-a.Peer-Reviewed Original ResearchConceptsIntracellular Ca2Extracellular Ca2Excessive NMDA receptor stimulationRetinal ganglion cell neuronsNMDA receptor-mediated neurotoxicityGanglion cell neuronsNMDA receptor activationReceptor-mediated mobilizationNMDA receptor stimulationNormal extracellular Ca2Neuronal damagePharmacological interventionsPrevents neurotoxicityReceptor stimulationPresence of EGTAIntracellular storesNMDACell neuronsReceptor activationCultured ratDelayed neurotoxicityDantroleneNeurotoxicityElevated Ca2Neuronsl-Homocysteic acid selectively activates N-methyl-d-aspartate receptors of rat retinal ganglion cells
Zhang D, Lipton S. l-Homocysteic acid selectively activates N-methyl-d-aspartate receptors of rat retinal ganglion cells. Neuroscience Letters 1992, 139: 173-177. PMID: 1351663, DOI: 10.1016/0304-3940(92)90545-i.Peer-Reviewed Original ResearchConceptsRat retinal ganglion cellsRetinal ganglion cellsGanglion cellsRat RGCsN-methyl-D-aspartate receptorsNMDA receptor-channel complexConcentrations of NMDAL-homocysteic acidWhole-cell recordingsReceptor-channel complexRetinal transmittersMaximal responseHomocysteic acidNMDAPatch electrodePossible roleMillimolar concentrationsHCACellsReceptorsResponse
1991
Redox modulatory site of the NMDA receptor–channel complex: Regulation by oxidized glutathione
Sucher N, Lipton S. Redox modulatory site of the NMDA receptor–channel complex: Regulation by oxidized glutathione. Journal Of Neuroscience Research 1991, 30: 582-591. PMID: 1666131, DOI: 10.1002/jnr.490300316.Peer-Reviewed Original ResearchConceptsRedox modulatory siteNMDA receptor-channel complexReceptor-channel complexModulatory siteNMDA responsesFura-2 digital imagingRetinal ganglion cell neuronsWhole-cell current responsesPatch-clamp recording techniquesGanglion cell neuronsCo-agonist glycineIntracellular calcium concentrationCultures of ratNMDA subtypeNMDA receptorsGlutamate receptorsCell neuronsHigh extracellularExtracellular applicationComplete recoveryCalcium concentrationFurther decrementRecording techniquesPredominant actionNMDAGDPβS antagonizes whole-cell current responses to excitatory amino acids
Budson A, Jackson P, Lipton S. GDPβS antagonizes whole-cell current responses to excitatory amino acids. Brain Research 1991, 548: 346-348. PMID: 1868345, DOI: 10.1016/0006-8993(91)91147-s.Peer-Reviewed Original Research