2023
Conserved but not critical: Trafficking and function of NaV1.7 are independent of highly conserved polybasic motifs
Tyagi S, Sarveswaran N, Higerd-Rusli G, Liu S, Dib-Hajj F, Waxman S, Dib-Hajj S. Conserved but not critical: Trafficking and function of NaV1.7 are independent of highly conserved polybasic motifs. Frontiers In Molecular Neuroscience 2023, 16: 1161028. PMID: 37008789, PMCID: PMC10060856, DOI: 10.3389/fnmol.2023.1161028.Peer-Reviewed Original ResearchSensory axonsPeripheral voltage-gated sodium channelsMajor unmet clinical needFunction of Nav1.7Non-addictive treatmentsUnmet clinical needVoltage-clamp recordingsVoltage-gated sodium channelsPain therapyChronic painPrimary afferentsNoxious stimuliTherapeutic modalitiesAction potentialsAxonal transportClinical needVesicular packagingSodium channelsHuman painPainAxonal traffickingAxonal surfaceAxonal membraneAxonsAttractive target
2021
Paclitaxel increases axonal localization and vesicular trafficking of Nav1.7
Akin EJ, Alsaloum M, Higerd GP, Liu S, Zhao P, Dib-Hajj FB, Waxman SG, Dib-Hajj SD. Paclitaxel increases axonal localization and vesicular trafficking of Nav1.7. Brain 2021, 144: 1727-1737. PMID: 33734317, PMCID: PMC8320304, DOI: 10.1093/brain/awab113.Peer-Reviewed Original ResearchConceptsDorsal root ganglion neuronsChemotherapy-induced peripheral neuropathyGanglion neuronsSensory axonsNav1.7 channelsPTX treatmentSensory neuronsHuman sensory neuronsEffect of paclitaxelSodium channel Nav1.7Chemotherapy drug paclitaxelAxonal vesicular transportConcentrations of paclitaxelNav1.7 mRNAInflammatory mediatorsNav1.7 expressionPeripheral neuropathyInflammatory milieuPrimary afferentsInflammatory conditionsChannel expressionChannel Nav1.7Nav1.7Increased expressionAxonal localization
2019
Building sensory axons: Delivery and distribution of NaV1.7 channels and effects of inflammatory mediators
Akin EJ, Higerd-Rusli GP, Mis MA, Tanaka BS, Adi T, Liu S, Dib-Hajj FB, Waxman SG, Dib-Hajj SD. Building sensory axons: Delivery and distribution of NaV1.7 channels and effects of inflammatory mediators. Science Advances 2019, 5: eaax4755. PMID: 31681845, PMCID: PMC6810356, DOI: 10.1126/sciadv.aax4755.Peer-Reviewed Original ResearchConceptsMicrotubule-dependent vesicular transportSingle-molecule resolutionVesicular traffickingVesicular transportSurface deliveryPlasma membraneMembrane distributionFunctional studiesAxon terminiSodium channel NaLive visualizationSensory axonsVesiclesTraffickingNew insightsChannel NaContribution of NaDisease statesRab6ANav1.7 channelsDorsal root ganglion neuronsTerminusThreefold increaseGanglion neuronsMembrane
2012
Neuropathy‐associated NaV1.7 variant I228M impairs integrity of dorsal root ganglion neuron axons
Persson A, Liu S, Faber CG, Merkies IS, Black JA, Waxman SG. Neuropathy‐associated NaV1.7 variant I228M impairs integrity of dorsal root ganglion neuron axons. Annals Of Neurology 2012, 73: 140-145. PMID: 23280954, DOI: 10.1002/ana.23725.Peer-Reviewed Original ResearchConceptsSmall fiber neuropathyIntraepidermal nerve fibersIdiopathic small fiber neuropathyNa-Ca exchangeDRG neuronsNeurite lengthSensory axonsLoss of IENFsReverse Na-Ca exchangeDorsal root ganglion neuronsPeripheral sensory axonsPeripheral nerve axonsSodium channel blockers carbamazepineSodium channel activityAxonal degenerationGanglion neuronsSpontaneous firingNerve fibersAxonal integrityNeuron axonsImpaired regenerationNerve axonsFunction variantsAxonsSodium channels