2024
Functionally-selective inhibition of threshold sodium currents and excitability in dorsal root ganglion neurons by cannabinol
Ghovanloo M, Effraim P, Tyagi S, Zhao P, Dib-Hajj S, Waxman S. Functionally-selective inhibition of threshold sodium currents and excitability in dorsal root ganglion neurons by cannabinol. Communications Biology 2024, 7: 120. PMID: 38263462, PMCID: PMC10805714, DOI: 10.1038/s42003-024-05781-x.Peer-Reviewed Original ResearchConceptsDorsal root ganglionDorsal root ganglion neuronal excitabilityDorsal root ganglion neuronsNeuronal excitabilityCurrent-clamp analysisSteady-state inactivationVoltage-dependent sodiumSlow inactivated stateAutomated patch clamp platformMultielectrode array recordingsNav currentsNeuropathic painSodium currentRoot ganglionGanglion neuronsSlow inactivationInactivated stateCurrent inhibitorsIon channelsNeuronsInhibitory effectCannabinolArray recordingsEndocannabinoidCannabinoid
2005
22 Neuronal Blocking Factors in Demyelinating Diseases
Cummins T, Waxman S. 22 Neuronal Blocking Factors in Demyelinating Diseases. 2005, 317-326. DOI: 10.1016/b978-012738761-1/50023-7.Peer-Reviewed Original ResearchVoltage-gated sodium channelsGuillain-Barré syndromeMultiple sclerosisSodium channelsChronic inflammatory demyelinating polyneuropathyInflammatory demyelinating polyneuropathyInflammatory demyelinating diseaseBlocking factorsDemyelinating polyneuropathyDemyelinating diseaseClinical deficitsAxonal degenerationInflammatory diseasesConduction blockSodium currentNitric oxideExperimental modelDiseaseImpulse transmissionSclerosisBiological toxinsDemyelinationFactorsPolyneuropathyCytokines
2002
HSV-1 Helper Virus 5dl1.2 Suppresses Sodium Currents in Amplicon-Transduced Neurons
White BH, Cummins TR, Wolf DH, Waxman SG, Russell DS, Kaczmarek LK. HSV-1 Helper Virus 5dl1.2 Suppresses Sodium Currents in Amplicon-Transduced Neurons. Journal Of Neurophysiology 2002, 87: 2149-2157. PMID: 11929932, DOI: 10.1152/jn.00498.2001.Peer-Reviewed Original ResearchConceptsSodium currentAnti-HSV antibodiesAverage spike frequencyWild-type HSV-1Helper virusViral-based strategiesDays of transductionCultured neuronsHSV-1Spike frequencyGene deliveryNeuronsMammalian neuronsAmplicon systemSimilar suppressionHSV-1 genesVirusTherapeutic purposesViral proteinsAmplicon preparationsCellsCoinfectionSuppressionPreparation resultsTiters
2000
Localization of the tetrodotoxin-resistant sodium channel NaN in nociceptors
Fjell J, Hjelmström P, Hormuzdiar W, Milenkovic M, Aglieco F, Tyrrell L, Dib-Hajj S, Waxman S, Black J. Localization of the tetrodotoxin-resistant sodium channel NaN in nociceptors. Neuroreport 2000, 11: 199-202. PMID: 10683857, DOI: 10.1097/00001756-200001170-00039.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsAxonsCorneaFemaleGanglia, SpinalImage Processing, Computer-AssistedImmunohistochemistryMolecular Sequence DataMyelin SheathNAV1.9 Voltage-Gated Sodium ChannelNerve FibersNeurons, AfferentNeuropeptidesNociceptorsPresynaptic TerminalsRanvier's NodesRatsRats, Sprague-DawleySciatic NerveSodium ChannelsTetrodotoxinConceptsSciatic nerveSmall diameter primary sensory neuronsSodium currentTetrodotoxin-resistant sodium channelsTetrodotoxin-resistant sodium currentDorsal root ganglion neuronsSodium channelsPrimary sensory neuronsAxonal sodium currentsNodes of RanvierNociceptive transmissionChannel immunoreactivityGanglion neuronsUnmyelinated fibersAxon terminalsSensory neuronsNerveImmunoreactivityAxonsNeuronsSpecific peptidesNociceptorsIB4CorneaAntibodies
1999
Plasticity of sodium channel expression in DRG neurons in the chronic constriction injury model of neuropathic pain
Dib-Hajj S, Fjell J, Cummins TR, Zheng Z, Fried K, LaMotte R, Black JA, Waxman S. Plasticity of sodium channel expression in DRG neurons in the chronic constriction injury model of neuropathic pain. Pain 1999, 83: 591-600. PMID: 10568868, DOI: 10.1016/s0304-3959(99)00169-4.Peer-Reviewed Original ResearchConceptsTTX-R sodium channelsChronic constriction injury modelDRG neuronsSodium currentSodium channelsNeuropathic painInjury modelAxotomized dorsal root ganglion (DRG) neuronsSmall-diameter DRG neuronsTTX-R sodium currentsDorsal root ganglion neuronsTTX-S currentsSodium channel expressionGanglion neuronsSciatic nerveChannel expressionSodium channel transcriptsNeuronsNa currentPainChannel transcriptsSignificant changesLevels of transcriptsHyperalgesiaPrevious studiesSodium channels, excitability of primary sensory neurons, and the molecular basis of pain
Waxman S, Cummins T, Dib‐Hajj S, Fjell J, Black J. Sodium channels, excitability of primary sensory neurons, and the molecular basis of pain. Muscle & Nerve 1999, 22: 1177-1187. PMID: 10454712, DOI: 10.1002/(sici)1097-4598(199909)22:9<1177::aid-mus3>3.0.co;2-p.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsPrimary sensory neuronsDRG neuronsSodium channel expressionSodium channel gene expressionSensory neuronsChannel gene expressionSodium channelsChannel expressionSodium currentTTX-sensitive sodium currentAbnormal burst activityNormal DRG neuronsSNS/PN3Resistant sodium currentsDistinct sodium channelsSodium channel geneChannel genesInflammatory painNerve injuryAxonal transectionElectrophysiological abnormalitiesSelective blockadePharmacological approachesBurst activityPainDifferential role of GDNF and NGF in the maintenance of two TTX-resistant sodium channels in adult DRG neurons
Fjell J, Cummins T, Dib-Hajj S, Fried K, Black J, Waxman S. Differential role of GDNF and NGF in the maintenance of two TTX-resistant sodium channels in adult DRG neurons. Brain Research 1999, 67: 267-282. PMID: 10216225, DOI: 10.1016/s0169-328x(99)00070-4.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAnimalsAxotomyCell SizeCell SurvivalDown-RegulationDrug ResistanceFemaleGanglia, SpinalGene ExpressionGlial Cell Line-Derived Neurotrophic FactorLectinsMembrane PotentialsNAV1.8 Voltage-Gated Sodium ChannelNAV1.9 Voltage-Gated Sodium ChannelNerve Growth FactorsNerve Tissue ProteinsNeurons, AfferentNeuropeptidesPatch-Clamp TechniquesRatsRats, Sprague-DawleyRNA, MessengerSciatic NerveSodium ChannelsTetrodotoxinUp-RegulationConceptsTTX-R sodium currentsSNS/PN3Small DRG neuronsTTX-R currentsDRG neuronsIB4- neuronsSodium currentElectrophysiological propertiesSmall dorsal root ganglion neuronsDorsal root ganglion neuronsAxotomized DRG neuronsTTX-S currentsWhole-cell patch-clamp studiesTTX-resistant sodium channelsSciatic nerve transectionAdult DRG neuronsDifferent electrophysiological propertiesNear-normal levelsPatch-clamp studiesNerve transectionGDNF treatmentNeurotrophins NGFGanglion neuronsIsolectin IB4Exogenous NGFIn Vivo NGF Deprivation Reduces SNS Expression and TTX-R Sodium Currents in IB4-Negative DRG Neurons
Fjell J, Cummins T, Fried K, Black J, Waxman S. In Vivo NGF Deprivation Reduces SNS Expression and TTX-R Sodium Currents in IB4-Negative DRG Neurons. Journal Of Neurophysiology 1999, 81: 803-810. PMID: 10036280, DOI: 10.1152/jn.1999.81.2.803.Peer-Reviewed Original ResearchConceptsTTX-R sodium currentsNerve growth factorPA/pFDRG neuronsHigh antibody titersSodium current densityNGF-deprived neuronsSodium currentAntibody titersAdult ratsSmall dorsal root ganglion neuronsTetrodotoxin-resistant sodium channelsDorsal root ganglion neuronsTTX-R currentsSodium channel expressionMRNA hybridization signalsPathological painThermal hypoalgesiaGanglion neuronsControl neuronsIsolectin IB4Channel expressionNGF deprivationMRNA expressionNeurons
1998
SNS Na+ channel expression increases in dorsal root ganglion neurons in the carrageenan inflammatory pain model
Tanaka M, Cummins T, Ishikawa K, Dib-Hajj S, Black J, Waxman S. SNS Na+ channel expression increases in dorsal root ganglion neurons in the carrageenan inflammatory pain model. Neuroreport 1998, 9: 967-972. PMID: 9601651, DOI: 10.1097/00001756-199804200-00003.Peer-Reviewed Original ResearchConceptsSmall DRG neuronsDorsal root ganglion neuronsInjection of carrageenanDRG neuronsInflamed limbGanglion neuronsSodium currentTTX-R sodium currentsTetrodotoxin-resistant sodium currentInflammatory pain modelDevelopment of hyperexcitabilitySodium channel expressionPatch-clamp recordingsInflammatory painPain modelChronic painCarrageenan injectionNociceptive cellsContralateral sideNaive ratsChannel expressionProjection fieldsMRNA expressionNeuronsSodium channels
1997
Differential Effects of NGF and BDNF on Axotomy-Induced Changes in GABAA-Receptor-Mediated Conductance and Sodium Currents in Cutaneous Afferent Neurons
Oyelese A, Rizzo M, Waxman S, Kocsis J. Differential Effects of NGF and BDNF on Axotomy-Induced Changes in GABAA-Receptor-Mediated Conductance and Sodium Currents in Cutaneous Afferent Neurons. Journal Of Neurophysiology 1997, 78: 31-42. PMID: 9242258, PMCID: PMC2605357, DOI: 10.1152/jn.1997.78.1.31.Peer-Reviewed Original ResearchConceptsBrain-derived neurotrophic factorCutaneous afferent neuronsNerve growth factorReceptor-mediated conductanceProportion of neuronsAfferent neuronsAction potential waveformSodium currentNeurotrophic factorL4/L5 DRG neuronsAction potentialsVoltage-dependent sodium currentsWhole-cell patch-clamp techniqueDorsal root ganglion neuronsCell patch-clamp techniqueAxotomy-induced increaseFluoro-Gold injectionsL5 DRG neuronsSpecific neurotrophic factorsSciatic nerve stumpsTTX-sensitive currentsInjury-induced changesResistant sodium currentsGamma-aminobutyric acidPatch-clamp technique
1992
Chapter 8: The expression of sodium channels in astrocytes in situ and in vitro
Black J, Sontheimer H, Minturn J, Ransom B, Waxman S. Chapter 8: The expression of sodium channels in astrocytes in situ and in vitro. Progress In Brain Research 1992, 94: 89-107. PMID: 1337617, DOI: 10.1016/s0079-6123(08)61742-2.Peer-Reviewed Original ResearchConceptsOptic nerve astrocytesSodium channel expressionChannel expressionSodium channelsOptic nerveSodium current propertiesChannel expression patternsIon channel expressionSimilar electrophysiological propertiesCultured astrocytesAstrocytesElectrophysiological propertiesSodium currentHeterogeneous groupDifferent patternsNerveDifferent subpopulationsExpressionExpression patternsCell-cell interactionsHippocampusA2B5Neurons