2000
Role of p38 Mitogen-Activated Protein Kinase in Axotomy-Induced Apoptosis of Rat Retinal Ganglion Cells
Kikuchi M, Tenneti L, Lipton S. Role of p38 Mitogen-Activated Protein Kinase in Axotomy-Induced Apoptosis of Rat Retinal Ganglion Cells. Journal Of Neuroscience 2000, 20: 5037-5044. PMID: 10864961, PMCID: PMC6772303, DOI: 10.1523/jneurosci.20-13-05037.2000.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsApoptosisAxonal TransportAxotomyCell NucleusCell SurvivalDizocilpine MaleateEnzyme InhibitorsFluorescent DyesImidazolesKineticsMaleMitogen-Activated Protein KinasesNeuroprotective AgentsOptic NerveP38 Mitogen-Activated Protein KinasesPhosphorylationPyridinesRatsRats, Long-EvansRetinal Ganglion CellsSignal TransductionStilbamidinesTime FactorsConceptsRetinal ganglion cellsProtein kinaseP38 Mitogen-Activated Protein KinaseMitogen-Activated Protein KinaseMAP kinase activationIntracellular signal transductionRole of p38P38 MAP kinase activationApoptotic cell deathDose-dependent mannerP38 MAP kinase inhibitorMAP kinase inhibitorRGC apoptosisOptic nerveGanglion cellsSignal transductionNMDA receptorsAxotomy-induced apoptosisApoptotic signalingKinase activationP38 inhibitorRat retinal ganglion cellsCell deathCell typesOptic nerve traumaRedox modulation of recombinant human GABAA receptors
Pan Z, Zhang X, Lipton S. Redox modulation of recombinant human GABAA receptors. Neuroscience 2000, 98: 333-338. PMID: 10854765, DOI: 10.1016/s0306-4522(00)00114-7.Peer-Reviewed Original ResearchConceptsGABA receptorsRat retinal ganglion cellsRecombinant human GABAA receptorsRetinal ganglion cellsVoltage-clamp recordingsEffect of dithiothreitolLow GABA concentrationsTwo-electrode voltage-clamp recordingsRedox modulationHuman GABAA receptorsGanglion cellsXenopus oocyte expression systemGABAA receptorsModulatory effectsReceptor currentsOocyte expression systemReceptor responsesGABA concentrationPotentiationGABAReceptorsSubunit compositionHomomeric GABAAgent 5M3 domainNitric oxide (NO·) stabilizes whereas nitrosonium (NO+) enhances filopodial outgrowth by rat retinal ganglion cells in vitro
Cheung S, Bhan I, Lipton S. Nitric oxide (NO·) stabilizes whereas nitrosonium (NO+) enhances filopodial outgrowth by rat retinal ganglion cells in vitro. Brain Research 2000, 868: 1-13. PMID: 10841882, DOI: 10.1016/s0006-8993(00)02161-2.Peer-Reviewed Original ResearchConceptsRat retinal ganglion cellsRetinal ganglion cellsGanglion cellsNitric oxideInhibition of NOSNO synthase substrateGrowth-associated proteinFilopodial outgrowthNOS activityGuanylate cyclaseGrowth cone motilityCyclic nucleotide analogsDistinct actionsSynthase substrateCone motilityNOSS-nitrosylationNucleotide analoguesOutgrowth
1999
The contribution of various NOS gene products to HIV-1 coat protein (gp120)-mediated retinal ganglion cell injury.
Dreyer E, Zurakowski D, Gorla M, Vorwerk C, Lipton S. The contribution of various NOS gene products to HIV-1 coat protein (gp120)-mediated retinal ganglion cell injury. Investigative Ophthalmology & Visual Science 1999, 40: 983-9. PMID: 10102296.Peer-Reviewed Original ResearchConceptsNitric oxide synthaseHIV-1 coat proteinRetinal ganglion cell injuryIsoforms of NOSNitric oxideNeuronal nitric oxide synthaseGanglion cell injuryRetinal ganglion cellsPresence of nNOSNOS-deficient miceWild-type miceNeuronal lossExcitotoxic pathwayIntravitreal injectionGanglion cellsGp120 toxicityNeuronal pathologyNOS inhibitorOxide synthaseHIV-1Cell injuryControl animalsNervous systemGp120Pathologic states
1998
Nitrate therapy may retard glaucomatous optic neuropathy, perhaps through modulation of glutamate receptors
Zurakowski D, Vorwerk C, Gorla M, Kanellopoulos A, Chaturvedi N, Grosskreutz C, Lipton S, Dreyer E. Nitrate therapy may retard glaucomatous optic neuropathy, perhaps through modulation of glutamate receptors. Vision Research 1998, 38: 1489-1494. PMID: 9667013, DOI: 10.1016/s0042-6989(98)00003-0.Peer-Reviewed Original ResearchConceptsEffects of nitroglycerinGlaucomatous optic neuropathyRetinal ganglion cellsAnginal symptomsNitroglycerin preparationsNitrate therapyGlaucomatous damageOptic neuropathyIntraocular pressureGanglion cellsGlutamate receptorsGlaucomatous blindnessNitroglycerinCell deathNeuropathyTherapySymptomsReceptors
1997
Molecular basis of glutamate toxicity in retinal ganglion cells
Sucher N, Lipton S, Dreyer E. Molecular basis of glutamate toxicity in retinal ganglion cells. Vision Research 1997, 37: 3483-3493. PMID: 9425525, DOI: 10.1016/s0042-6989(97)00047-3.Peer-Reviewed Original ResearchConceptsRetinal ganglion cellsExcitatory amino acidsNMDA receptor antagonistRetinal ischemiaReceptor antagonistGanglion cellsGlutamate toxicityAnterior ischemic optic neuropathyN-methyl-D-aspartate (NMDA) subtypeNMDA receptor-mediated toxicityNon-NMDA receptor subtypesAcute vascular insultCentral artery occlusionOptic nerve traumaIschemic optic neuropathyGlutamate-induced neurotoxicitySelective NMDA receptor antagonistGlutamate-induced depolarizationVoltage-gated Ca2Amino acid glutamateOptic neuritisNerve traumaArtery occlusionFuture clinical useNeuronal lossMechanism 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
1996
Chronic low-dose glutamate is toxic to retinal ganglion cells. Toxicity blocked by memantine.
Vorwerk C, Lipton S, Zurakowski D, Hyman B, Sabel B, Dreyer E. Chronic low-dose glutamate is toxic to retinal ganglion cells. Toxicity blocked by memantine. Investigative Ophthalmology & Visual Science 1996, 37: 1618-24. PMID: 8675405.Peer-Reviewed Original ResearchConceptsRetinal ganglion cellsLow-dose glutamateGanglion cell survivalGanglion cellsGlutamate toxicityGlutamate levelsMinor elevationsGlutamate concentrationCentral mammalian neuronsEndogenous glutamate levelsCell survivalSuch chronic exposuresGlutamate elevationVitreal glutamateMemantine therapyMemantine treatmentNeuronal lossIntravitreal injectionGlutamate antagonistsMicroM glutamateVehicle injectionChronic elevationMemantineAcute exposureChronic exposureElevated Glutamate Levels in the Vitreous Body of Humans and Monkeys With Glaucoma
Dreyer E, Zurakowski D, Schumer R, Podos S, Lipton S. Elevated Glutamate Levels in the Vitreous Body of Humans and Monkeys With Glaucoma. JAMA Ophthalmology 1996, 114: 299-305. PMID: 8600890, DOI: 10.1001/archopht.1996.01100130295012.Peer-Reviewed Original ResearchConceptsExcitatory amino acid glutamateRetinal ganglion cellsAmino acid glutamateVitreous bodyGlaucomatous eyesGanglion cellsGlutamate levelsRetinal ganglion cell neuronsOptic nerve damageGroup of patientsElevated glutamate levelsGanglion cell neuronsLevels of glutamateEyes of monkeysNerve damageControl eyesVisual dysfunctionNonglaucomatous eyesCataract extractionPosterior capsuleInadvertent ruptureDisease processGlaucomaCell neuronsPatients
1995
Co-expression of AMPA/kainate receptor-operated channels with high and low Ca2+ permeability in single rat retinal ganglion cells
Zhang D, Sucher N, Lipton S. Co-expression of AMPA/kainate receptor-operated channels with high and low Ca2+ permeability in single rat retinal ganglion cells. Neuroscience 1995, 67: 177-188. PMID: 7477898, DOI: 10.1016/0306-4522(94)00627-h.Peer-Reviewed Original ResearchConceptsRat retinal ganglion cellsRetinal ganglion cellsD-aspartate receptorsReceptor-operated channelsGanglion cellsWhole-cell currentsPermeable AMPA/kainate channelsAMPA/kainate channelsLow Ca2Only permeant cationExtracellular solutionPatch-clamp techniqueSecond groupFirst groupKainate channelsFlop splice variantsPolymerase chain reactionGlutamate receptorsConcentrations of AMPAPattern of expressionReceptorsChain reactionSole charge carrierCurrent-voltage relationshipPredominant expressionTranscriptional 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 ResearchDifferential modulation by sulfhydryl redox agents and glutathione of GABA- and glycine-evoked currents in rat retinal ganglion cells
Pan Z, Bahring R, Grantyn R, Lipton. Differential modulation by sulfhydryl redox agents and glutathione of GABA- and glycine-evoked currents in rat retinal ganglion cells. Journal Of Neuroscience 1995, 15: 1384-1391. PMID: 7869105, PMCID: PMC6577822, DOI: 10.1523/jneurosci.15-02-01384.1995.Peer-Reviewed Original ResearchConceptsRetinal ganglion cellsRat retinal ganglion cellsGlycine-evoked currentsGanglion cellsInhibitory neurotransmissionSingle retinal ganglion cellsInhibitory neurotransmitter systemsWhole-cell recordingsInhibitory receptor systemsModulatory systemAction of glutathioneNeurotransmitter systemsReceptor stimulationMammalian CNSMammalian retinaSingle agentEndogenous redox agentsReceptor systemPatch pipetteGABADifferential modulationGABAANeurotransmissionRetinaExtracellular glutathione
1994
Greater 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
1993
Delayed administration of memantine prevents N‐methyl‐D‐aspartate receptor‐mediated neurotoxicity
Pellegrini J, Lipton S. Delayed administration of memantine prevents N‐methyl‐D‐aspartate receptor‐mediated neurotoxicity. Annals Of Neurology 1993, 33: 403-407. PMID: 8098195, DOI: 10.1002/ana.410330414.Peer-Reviewed Original ResearchConceptsExcitatory amino acidsN-methyl-D-aspartate receptor-mediated neurotoxicityPotent N-methyl-D-aspartate antagonistNeonatal rat retinal ganglion cellsN-methyl-D-aspartate (NMDA) subtypeN-methyl-D-aspartate antagonistsRat retinal ganglion cellsImmunodeficiency syndrome (AIDS) dementiaAcute neurological conditionsHypoxia/ischemiaChronic neurodegenerative diseasesRetinal ganglion cellsNeuronal cell deathMicroM memantineAntiparkinsonian drugsCentral neuronsGanglion cellsExcessive activationGlutamate receptorsNeurological conditionsNeurodegenerative diseasesHuntington's diseaseNeurotoxicityPrimary culturesDisease
1992
Requirement for macrophages in neuronal injury induced by HIV envelope protein gp120
Lipton S. Requirement for macrophages in neuronal injury induced by HIV envelope protein gp120. Neuroreport 1992, 3: 913-915. PMID: 1421098, DOI: 10.1097/00001756-199210000-00023.Peer-Reviewed Original ResearchConceptsHIV envelope protein gp120Retinal ganglion cellsEnvelope protein gp120Neuronal injuryGanglion cellsGlial cellsProtein gp120N-methyl-D-aspartate antagonistsMixed neuronal-glial culturesRetinal ganglion cell neuronsNeuronal-glial culturesGanglion cell neuronsActivation of macrophagesPresence of macrophagesPM gp120Like damageGlial culturesCell neuronsGp120Early increaseFree calciumPostnatal retinaMacrophagesInjurious effectsNeuronsMemantine prevents HIV coat protein-induced neuronal injury in vitro.
Lipton S. Memantine prevents HIV coat protein-induced neuronal injury in vitro. Neurology 1992, 42: 1403-5. PMID: 1620355, DOI: 10.1212/wnl.42.7.1403.Peer-Reviewed Original ResearchConceptsNeuronal injuryNeuronal damageHIV-1 coat protein gp120Cognitive/motor complexRat retinal ganglion cellsN-methyl-D-aspartate receptorsHuman immunodeficiency virusPossible protective effectNMDA receptor-operated ion channelsRetinal ganglion cellsReceptor-operated ion channelsMicroM memantineNeurologic deficitsImmunodeficiency virusGanglion cellsNMDA antagonistsProtective effectProtein gp120Therapeutic potentialGp120InjuryMemantineMotor complexConcurrent activationIon channelsl-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 concentrationsHCACellsReceptorsResponseSelectivity of Thy-1 monoclonal antibodies in enhancing neurite outgrowth
Lipton S, Leifer D, Barnstable C. Selectivity of Thy-1 monoclonal antibodies in enhancing neurite outgrowth. Neuroscience Letters 1992, 137: 75-77. PMID: 1352632, DOI: 10.1016/0304-3940(92)90302-n.Peer-Reviewed Original ResearchA slowly inactivating K+ current in retinal ganglion cells from postnatal rat
Sucher N, Lipton S. A slowly inactivating K+ current in retinal ganglion cells from postnatal rat. Visual Neuroscience 1992, 8: 171-176. PMID: 1558829, DOI: 10.1017/s0952523800009330.Peer-Reviewed Original ResearchConceptsRetinal ganglion cellsGanglion cellsPostnatal ratsTiger salamander retinaPatch-clamp techniqueWhole-cell configurationRat neuronsSalamander retinaPharmacological propertiesRatsRelated cellsRetinaVoltage-independent timeCellsExtracellular CO2External applicationChannel typesLower vertebratesLast findingNeuronsTea
1991
Immunofluorescent characterization of retinal ganglion cell neurites cultured on substrates coated with antibodies against Thy-1
Leifer D, Dreyer E, Lipton S. Immunofluorescent characterization of retinal ganglion cell neurites cultured on substrates coated with antibodies against Thy-1. Experimental Neurology 1991, 113: 386-390. PMID: 1680742, DOI: 10.1016/0014-4886(91)90030-g.Peer-Reviewed Original ResearchConceptsRetinal ganglion cellsGanglion cellsThy-1Rat retinal ganglion cellsMicrotubule-associated protein 2Display immunoreactivityImmunofluorescent characterizationAntibodiesAxonal compartmentProtein 2Neurite outgrowthDays of cultureDendritic featuresCellsCytoskeletal proteinsImmunoreactivityCell membrane