2024
A surgical protocol for establishing spinal cord ischemia with extended lifespan and low complication rates in rats
Yasuda N, Sasaki M, Kocsis J, Kawaharada N, Honmou O. A surgical protocol for establishing spinal cord ischemia with extended lifespan and low complication rates in rats. World Neurosurgery 2024, 188: e349-e356. PMID: 38789035, DOI: 10.1016/j.wneu.2024.05.114.Peer-Reviewed Original ResearchIschemic spinal cord injurySpinal cord ischemiaCord ischemiaComplication rateRat modelTherapeutic strategiesEvaluate new therapeutic strategiesFunctional recoveryMale Sprague-Dawley ratsLow complication rateSprague-Dawley ratsSpecialized surgical equipmentExperimental animal modelsImprove functional recoveryPromote functional recoverySpinal cord injuryCross-clampingSevere neurological disordersAzygos veinSurgical protocolDescending aortaBulldog clampsLumbar levelsSpinal cordIschemic lesions
2022
Enhanced Network in Corticospinal Tracts after Infused Mesenchymal Stem Cells in Spinal Cord Injury
Hirota R, Sasaki M, Kataoka-Sasaki Y, Oshigiri T, Kurihara K, Fukushi R, Oka S, Ukai R, Yoshimoto M, Kocsis JD, Yamashita T, Honmou O. Enhanced Network in Corticospinal Tracts after Infused Mesenchymal Stem Cells in Spinal Cord Injury. Journal Of Neurotrauma 2022, 39: 1665-1677. PMID: 35611987, PMCID: PMC9734021, DOI: 10.1089/neu.2022.0106.Peer-Reviewed Original ResearchConceptsSpinal cord injuryCorticospinal tractMesenchymal stem cellsCord injurySpinal cordSpontaneous recoveryInfused mesenchymal stem cellsLimited spontaneous recoveryDorsal corticospinal tractLateral corticospinal tractStem cellsCST pathwayCST projectionsSCI inductionMSC infusionAxonal sproutingFunctional recoveryLateral funiculusIntravenous infusionAxonal tracerLesion coreMotor pathwaysFunctional improvementCircuit reorganizationMajor projections
2021
Intravenous infusion of mesenchymal stem cells delays disease progression in the SOD1G93A transgenic amyotrophic lateral sclerosis rat model
Magota H, Sasaki M, Kataoka-Sasaki Y, Oka S, Ukai R, Kiyose R, Onodera R, Kocsis JD, Honmou O. Intravenous infusion of mesenchymal stem cells delays disease progression in the SOD1G93A transgenic amyotrophic lateral sclerosis rat model. Brain Research 2021, 1757: 147296. PMID: 33516815, DOI: 10.1016/j.brainres.2021.147296.Peer-Reviewed Original ResearchConceptsBlood-spinal cord barrierQuantitative reverse transcription polymerase chain reactionIntravenous infusionDisease progressionMotor neuronsMSC groupLocomotor functionOpen-field locomotor functionPreservation of microvasculatureHind limb functionCommon clinical featuresEvans blue leakageMotor neuron lossReverse transcription-polymerase chain reactionTranscription-polymerase chain reactionDevastating neurodegenerative diseaseBBB scoringBSCB functionRotarod testingClinical featuresNeuron lossLimb functionNeurotrophic factorCurative strategiesSpinal cord
2018
Detection of local and remote cellular damage caused by spinal cord and peripheral nerve injury using a heat shock signaling reporter system
Hashimoto-Torii K, Sasaki M, Chang YW, Hwang H, Waxman SG, Kocsis JD, Rakic P, Torii M. Detection of local and remote cellular damage caused by spinal cord and peripheral nerve injury using a heat shock signaling reporter system. IBRO Neuroscience Reports 2018, 5: 91-98. PMID: 30480161, PMCID: PMC6240805, DOI: 10.1016/j.ibror.2018.11.003.Peer-Reviewed Original ResearchPeripheral nerve injurySpinal cordNerve injuryPeripheral nerve injury resultsAltered electrophysiological propertiesNerve injury resultsSecondary damageHeat shock factor 1Neuropathic painInjury resultsInjury siteClinical abnormalitiesShock factor 1Mouse modelMemory dysfunctionElectrophysiological propertiesCordFactor 1Cellular damageFurther deteriorationInjuryReporter systemAbnormalitiesImmediate stress responseCellsIntravenous Infusion of Mesenchymal Stem Cells Alters Motor Cortex Gene Expression in a Rat Model of Acute Spinal Cord Injury
Oshigiri T, Sasaki T, Sasaki M, Kataoka-Sasaki Y, Nakazaki M, Oka S, Morita T, Hirota R, Yoshimoto M, Yamashita T, Hashimoto-Torii K, Honmou O. Intravenous Infusion of Mesenchymal Stem Cells Alters Motor Cortex Gene Expression in a Rat Model of Acute Spinal Cord Injury. Journal Of Neurotrauma 2018, 36: 411-420. PMID: 29901416, PMCID: PMC6352512, DOI: 10.1089/neu.2018.5793.Peer-Reviewed Original ResearchConceptsSpinal cord injuryInfused mesenchymal stem cellsMesenchymal stem cellsCord injuryIntravenous infusionFunctional improvementAcute spinal cord injuryBlood-spinal cord barrierGene expression signaturesAxonal sproutingFunctional recoveryMotor cortexSystemic infusionVehicle infusionSpinal cordRat modelTherapeutic mechanismImproved functionInfusionTranscription-polymerase chain reaction dataPearson correlation analysisBehavioral functionsExpression signaturesGenome-wide RNA profilingRecent evidence
2016
Intravenous infusion of mesenchymal stem cells promotes functional recovery in a model of chronic spinal cord injury
Morita T, Sasaki M, Kataoka-Sasaki Y, Nakazaki M, Nagahama H, Oka S, Oshigiri T, Takebayashi T, Yamashita T, Kocsis JD, Honmou O. Intravenous infusion of mesenchymal stem cells promotes functional recovery in a model of chronic spinal cord injury. Neuroscience 2016, 335: 221-231. PMID: 27586052, DOI: 10.1016/j.neuroscience.2016.08.037.Peer-Reviewed Original ResearchConceptsSpinal cord injuryIntravenous infusionMesenchymal stem cellsCord injuryBone marrowBlood-spinal cord barrier integrityPhases of SCIChronic spinal cord injuryOpen-field locomotor functionContusive spinal cord injurySevere Contusive Spinal Cord InjuryVehicle-treated groupStem cellsAdult bone marrowBSCB leakageMSC infusionExtensive remyelinationMotor recoveryFunctional recoverySerotonergic fibersCorticospinal tractSystemic infusionFunctional improvementSpinal cordRat model
2015
Diffuse and persistent blood–spinal cord barrier disruption after contusive spinal cord injury rapidly recovers following intravenous infusion of bone marrow mesenchymal stem cells
Matsushita T, Lankford KL, Arroyo EJ, Sasaki M, Neyazi M, Radtke C, Kocsis JD. Diffuse and persistent blood–spinal cord barrier disruption after contusive spinal cord injury rapidly recovers following intravenous infusion of bone marrow mesenchymal stem cells. Experimental Neurology 2015, 267: 152-164. PMID: 25771801, DOI: 10.1016/j.expneurol.2015.03.001.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntigens, SurfaceBlood-Brain BarrierCell- and Tissue-Based TherapyDisease Models, AnimalEndothelial CellsExploratory BehaviorGlial Fibrillary Acidic ProteinLocomotionMaleMesenchymal Stem CellsMicrovesselsPermeabilityRatsRats, Sprague-DawleyRats, TransgenicReceptor, Platelet-Derived Growth Factor betaSpinal Cord InjuriesTime FactorsVon Willebrand FactorConceptsSpinal cord injuryContusive spinal cord injuryBlood-spinal cord barrierBSCB leakageIntravenous infusionMesenchymal stem cellsVon Willebrand factorMSC infusionCord injurySpinal cordBlood-spinal cord barrier disruptionExperimental spinal cord injuryIntravenous MSC infusionSpinal cord barrierEx vivo optical imagingDissociation of pericytesBone marrow mesenchymal stem cellsStem cellsMarrow mesenchymal stem cellsBSCB integrityBSCB permeabilityLocomotor recoveryPost-SCIBarrier disruptionAntigen expression
2013
Olfactory ensheathing cells, but not schwann cells, proliferate and migrate extensively within moderately X‐Irradiated juvenile rat brain
Lankford KL, Brown RJ, Sasaki M, Kocsis JD. Olfactory ensheathing cells, but not schwann cells, proliferate and migrate extensively within moderately X‐Irradiated juvenile rat brain. Glia 2013, 62: 52-63. PMID: 24166823, DOI: 10.1002/glia.22583.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnimals, NewbornAntigensCD11b AntigenCell MovementCell ProliferationCells, CulturedFemaleGlial Fibrillary Acidic ProteinGreen Fluorescent ProteinsMaleNeurogliaOlfactory MucosaOligodendrogliaProteoglycansRadiation Injuries, ExperimentalRatsRats, Sprague-DawleySchwann CellsStem Cell TransplantationConceptsJuvenile rat brainAdult spinal cordIntact adult spinal cordSchwann cellsSpinal cordRat brainAdult rat spinal cordSpinal cord lesionsRat spinal cordCord lesionsModerate radiation doseNeuronal repairPoor survivalAdult CNSUnbiased stereologyCordOECsBrainThree weeksNumber of cellsRadiation dosePermissive environmentCell migrationCellsMicroglia
2009
Unique in vivo properties of olfactory ensheathing cells that may contribute to neural repair and protection following spinal cord injury
Kocsis JD, Lankford KL, Sasaki M, Radtke C. Unique in vivo properties of olfactory ensheathing cells that may contribute to neural repair and protection following spinal cord injury. Neuroscience Letters 2009, 456: 137-142. PMID: 19429149, PMCID: PMC2713444, DOI: 10.1016/j.neulet.2008.08.093.Peer-Reviewed Original ResearchConceptsSpinal cord injuryCord injuryLow-affinity NGF receptorSchwann cell transplantationSignificant functional improvementSpinal cord resultsOlfactory receptor axonsPrecise cellular mechanismsCord resultsCell transplantationFunctional outcomeSynaptic contactsAxonal regenerationNasal mucosaFunctional improvementSpinal cordGlial cellsOlfactory bulbReceptor axonsTrophic supportNGF receptorAnimal modelsNeural repairTherapeutic candidateOECs
2008
Olfactory ensheathing cells exhibit unique migratory, phagocytic, and myelinating properties in the X‐irradiated spinal cord not shared by Schwann cells
Lankford KL, Sasaki M, Radtke C, Kocsis JD. Olfactory ensheathing cells exhibit unique migratory, phagocytic, and myelinating properties in the X‐irradiated spinal cord not shared by Schwann cells. Glia 2008, 56: 1664-1678. PMID: 18551623, DOI: 10.1002/glia.20718.Peer-Reviewed Original ResearchConceptsCentral nervous systemSpinal cordSchwann cellsOligodendrocyte progenitor cellsNormal central nervous systemMigratory propertiesOX-42 stainingNormal spinal cordOlfactory Ensheathing CellsMyelin-forming cellsDemyelinated lesionsHost axonsPhagocytic phenotypePoor survivalSubsequent lesionsNervous systemWhite matterCordLimited survivalOECsMigratory capabilityProgenitor cellsTransplantationX-irradiationLesions
2007
Remyelination of the injured spinal cord
Sasaki M, Li B, Lankford KL, Radtke C, Kocsis JD. Remyelination of the injured spinal cord. Progress In Brain Research 2007, 161: 419-433. PMID: 17618995, PMCID: PMC2605400, DOI: 10.1016/s0079-6123(06)61030-3.Peer-Reviewed Original ResearchConceptsSpinal cord injuryFunctional outcomeSpinal cordContusive spinal cord injuryLong white matter tractsPotential cell therapy candidatesWhite matter tractsMyelin-forming cellsCell therapy candidatesCord injuryCentral necrotic coreClinical studiesTherapy candidatesNecrotic coreTransplantation studiesExperimental modelCordOutcomesCellsDemyelinationRemyelinationInjuryNecrosisOECsAxons
2006
Molecular Reconstruction of Nodes of Ranvier after Remyelination by Transplanted Olfactory Ensheathing Cells in the Demyelinated Spinal Cord
Sasaki M, Black JA, Lankford KL, Tokuno HA, Waxman SG, Kocsis JD. Molecular Reconstruction of Nodes of Ranvier after Remyelination by Transplanted Olfactory Ensheathing Cells in the Demyelinated Spinal Cord. Journal Of Neuroscience 2006, 26: 1803-1812. PMID: 16467529, PMCID: PMC2605396, DOI: 10.1523/jneurosci.3611-05.2006.Peer-Reviewed Original ResearchConceptsDemyelinated spinal cordSpecific membrane domainsSpinal cordVoltage-gated ion channelsGreen fluorescent proteinTransplanted Olfactory Ensheathing CellsMature NodalMembrane domainsSpinal cord demyelinationOlfactory Ensheathing CellsVivo electrophysiological recordingsFluorescent proteinJuxtaparanodal domainsMolecular reconstructionIon channelsMature nodesRemyelinated axonsExtensive remyelinationUninjured axonsKv channelsDemyelinated axonsDonor ratsCentral axonsGlial cellsJuxtaparanodal region
2005
Protection of corticospinal tract neurons after dorsal spinal cord transection and engraftment of olfactory ensheathing cells
Sasaki M, Hains BC, Lankford KL, Waxman SG, Kocsis JD. Protection of corticospinal tract neurons after dorsal spinal cord transection and engraftment of olfactory ensheathing cells. Glia 2005, 53: 352-359. PMID: 16288464, PMCID: PMC2605395, DOI: 10.1002/glia.20285.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBenzimidazolesCell CountCell SeparationCell SurvivalCell TransplantationEnzyme-Linked Immunosorbent AssayFluorescent DyesImage Processing, Computer-AssistedImmunohistochemistryIn Situ Nick-End LabelingMotor ActivityNeuronsOlfactory PathwaysPyramidal TractsRatsSpinal Cord InjuriesStilbamidinesConceptsCorticospinal tract neuronsSpinal cordTract neuronsNeuronal lossOEC transplantationDorsal spinal cord transectionPrimary motor cortexCortical projection neuronsSpinal cord transectionTransplantation of olfactoryRat spinal cordOlfactory Ensheathing CellsApoptotic cortical neuronsBDNF levelsNeuroprotective effectsCord transectionFunctional outcomeMotor cortexNeurotrophic moleculesProjection neuronsAxonal regenerationCortical neuronsInjury zoneTransplantationOECs28 Transplantation of Peripheral-Myelin-Forming Cells to Repair Demyelinated Axons
Kocsis J, Sasaki M. 28 Transplantation of Peripheral-Myelin-Forming Cells to Repair Demyelinated Axons. 2005, 421-433. DOI: 10.1016/b978-012738761-1/50029-8.Peer-Reviewed Original ResearchTransplantation of SCsTransplantation of OECsSpinal cord injuryCentral nervous systemSchwann cellsAxonal regenerationBone marrow cellsFunctional recoveryMultiple sclerosisCell transplantationCord injurySpinal cordHind limb locomotor functionContusive spinal cord injuryBone marrow cell transplantationMarrow cellsSpinal cord injury modelMarrow cell transplantationCerebral ischemia modelSpinal cord resultsGlobal neuroprotectionDemyelination modelCord resultsFunctional outcomeDemyelinated axons
2004
Autologous transplantation of expanded neural precursor cells into the demyelinated monkey spinal cord
Oka S, Honmou O, Akiyama Y, Sasaki M, Houkin K, Hashi K, Kocsis JD. Autologous transplantation of expanded neural precursor cells into the demyelinated monkey spinal cord. Brain Research 2004, 1030: 94-102. PMID: 15567341, DOI: 10.1016/j.brainres.2004.09.062.Peer-Reviewed Original ResearchConceptsNeural precursor cellsAutologous transplantationSpinal cordPrecursor cellsSubventricular zoneAdult primate brainMonkey spinal cordCentral nervous system axonsPresence of mitogensAdult nonhuman primatesNon-human primatesNeurological deficitsDemyelinated lesionsDorsal columnsIntraspinal injectionElectron microscopic examinationControl lesionsLesion sitePrimate brainPeripheral patternMyelinated axonsTransplantationLesionsNonhuman primatesCordIdentified Olfactory Ensheathing Cells Transplanted into the Transected Dorsal Funiculus Bridge the Lesion and Form Myelin
Sasaki M, Lankford KL, Zemedkun M, Kocsis JD. Identified Olfactory Ensheathing Cells Transplanted into the Transected Dorsal Funiculus Bridge the Lesion and Form Myelin. Journal Of Neuroscience 2004, 24: 8485-8493. PMID: 15456822, PMCID: PMC2605369, DOI: 10.1523/jneurosci.1998-04.2004.Peer-Reviewed Original ResearchConceptsSprague-DawleyOlfactory bulbTransection siteMyelinated axonsLesion zoneForm myelinOpen field locomotor behaviorAdult olfactory bulbTransection lesionTransplantation groupPattern of repairSD ratsSpinal cordLesion areaLesionsCellular elementsImproved locomotionAxonsLocomotor behaviorMyelinGFP cellsGreen fluorescent proteinCellsAnti-GFP antibodyDiscrete bundles
2001
Transplantation of an acutely isolated bone marrow fraction repairs demyelinated adult rat spinal cord axons
Sasaki M, Honmou O, Akiyama Y, Uede T, Hashi K, Kocsis J. Transplantation of an acutely isolated bone marrow fraction repairs demyelinated adult rat spinal cord axons. Glia 2001, 35: 26-34. PMID: 11424189, PMCID: PMC2605363, DOI: 10.1002/glia.1067.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnimals, NewbornBeta-GalactosidaseBone Marrow TransplantationCells, CulturedEthidiumGlial Fibrillary Acidic ProteinImmunohistochemistryMiceMice, TransgenicMyeloid Progenitor CellsNerve Fibers, MyelinatedNerve RegenerationNeurogliaRatsRats, WistarRecovery of FunctionSpinal CordSpinal Cord InjuriesConceptsBone marrow cellsSpinal cordMyelin-forming cellsMarrow cellsDemyelinated rat spinal cordRat spinal cord axonsDorsal column lesionBone marrow cell fractionRat spinal cordX-irradiation treatmentSpinal cord axonsLacZ transgenic miceSchwann cell myelinationCell fractionCell transplantation techniquesDorsal funiculusPeripheral patternTransgenic miceTransplantation techniquesHematopoietic stem cellsIsolated cell fractionsCordFemoral bonePrecursor cellsTransplantation
2000
[Remyelination by Schwann cell transplantation for CNS demyelinated axons: functional comparison with developmental myelination].
Imaizumi T, Tsushima S, Sasaki M, Akiyama Y, Hashi K. [Remyelination by Schwann cell transplantation for CNS demyelinated axons: functional comparison with developmental myelination]. Brain And Nerve 脳と神経 2000, 52: 701-7. PMID: 11002480.Peer-Reviewed Original ResearchConceptsCompound action potentialConduction velocitySC transplantationAdult ratsDemyelinated axonsHigh-frequency stimulationDay old pupsLower conduction velocityNormal adult ratsSC myelinationSpinal cordFrequency stimulationRat dorsalHistological examinationStimulus trainsTransplantationOld pupsRemyelinationAmplitude decrementAction potentialsNormal adultsAxonsRatsNormal DCsMyelination[Comparison of myelin-forming cells as candidates for therapeutic transplantation in demyelinated CNS axons].
Imaizumi T, Lankford K, Kocsis J, Sasaki M, Akiyama Y, Hashi K. [Comparison of myelin-forming cells as candidates for therapeutic transplantation in demyelinated CNS axons]. Brain And Nerve 脳と神経 2000, 52: 609-15. PMID: 10934721.Peer-Reviewed Original ResearchConceptsDemyelinated CNS axonsSchwann cellsBrain cellsSpinal cordConduction velocityCNS axonsAdult rat spinal cordFronto-temporal lobesRat spinal cordAdult Schwann cellsDemyelination of axonsMyelin-forming cellsBlock of conductionAdult olfactoryDemyelinated diseasesDemyelinated axonsLess myelinationHistological examinationCNS tissueTherapeutic approachesStimulus trainsDay 28Transplanted OECsAmplitude decrementRemyelination