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
2023
Repeated intravenous infusion of mesenchymal stem cells enhances recovery of motor function in a rat model with chronic spinal cord injury
Kurihara K, Sasaki M, Nagahama H, Obara H, Fukushi R, Hirota R, Yoshimoto M, Teramoto A, Kocsis J, Yamashita T, Honmou O. Repeated intravenous infusion of mesenchymal stem cells enhances recovery of motor function in a rat model with chronic spinal cord injury. Brain Research 2023, 1817: 148484. PMID: 37442249, DOI: 10.1016/j.brainres.2023.148484.Peer-Reviewed Original ResearchConceptsSpinal cord injuryInfusion of MSCsChronic spinal cord injuryMesenchymal stem cellsAxonal sproutingCord injuryHD-MSCsIntravenous infusionMotor functionVehicle groupWeek 6Single high-dose infusionInjection of MSCsChronic SCI ratsSingle MSC injectionGreater functional recoveryRat SCI modelSingle intravenous infusionHigh-dose infusionLimited treatment optionsGreater functional improvementSingle high doseHigh disease burdenVivo diffusion tensor imagingEx vivo diffusion tensor imagingMesenchymal Stem Cell Transplantation for Spinal Cord Injury: Current Status and Prospects
Hirota R, Sasaki M, Honmou O, Yamashita T. Mesenchymal Stem Cell Transplantation for Spinal Cord Injury: Current Status and Prospects. Spine Surgery And Related Research 2023, 7: 319-326. PMID: 37636138, PMCID: PMC10447197, DOI: 10.22603/ssrr.2022-0234.Peer-Reviewed Original ResearchSpinal cord injuryMesenchymal stem cellsCord injuryMesenchymal stem cell transplantationSevere spinal cord injuryCentral nervous system diseaseMotor function recoveryStem cell transplantationNervous system diseasesSCI modelCell transplantationFunction recoveryIntravenous infusionMSC transplantationMotor functionRat modelIntravenous administrationSystem diseasesBone marrowSCI researchTransplantationInjuryRecent updatesStem cellsCell types
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 projectionsIntravenous Infusion of Autoserum-Expanded Autologous Mesenchymal Stem Cells in Patients With Chronic Brain Injury: Protocol for a Phase 2 Trial
Oka S, Yamaki T, Sasaki M, Ukai R, Takemura M, Yokoyama T, Kataoka-Sasaki Y, Onodera R, Ito YM, Kobayashi S, Kocsis JD, Iwadate Y, Honmou O. Intravenous Infusion of Autoserum-Expanded Autologous Mesenchymal Stem Cells in Patients With Chronic Brain Injury: Protocol for a Phase 2 Trial. JMIR Research Protocols 2022, 11: e37898. PMID: 35793128, PMCID: PMC9301565, DOI: 10.2196/37898.Peer-Reviewed Original ResearchChronic brain injuryAutologous mesenchymal stem cellsSpinal cord injuryINTERNATIONAL REGISTERED REPORT IDENTIFIERBrain injuryIntravenous infusionRankin Scale gradesCord injuryMesenchymal stem cellsClinical trialsScale gradeTherapeutic efficacyJapan Medical Association CenterSapporo Medical University HospitalInvestigator-initiated clinical trialsModified Rankin Scale gradesOpen-label trialPhase 2 studyPhase 2 trialMedical University HospitalCause of disabilityMotor vehicle accidentsPotential therapeutic efficacyProportion of casesStem cells
2021
Intravenous infusion of auto serum-expanded autologous mesenchymal stem cells in spinal cord injury patients: 13 case series
Honmou O, Yamashita T, Morita T, Oshigiri T, Hirota R, Iyama S, Kato J, Sasaki Y, Ishiai S, Ito YM, Namioka A, Namioka T, Nakazaki M, Kataoka-Sasaki Y, Onodera R, Oka S, Sasaki M, Waxman SG, Kocsis JD. Intravenous infusion of auto serum-expanded autologous mesenchymal stem cells in spinal cord injury patients: 13 case series. Clinical Neurology And Neurosurgery 2021, 203: 106565. PMID: 33667953, DOI: 10.1016/j.clineuro.2021.106565.Peer-Reviewed Original ResearchConceptsSpinal cord injuryAmerican Spinal Injury Association Impairment ScaleMSC infusionAutologous mesenchymal stem cellsASIA CASIA DIntravenous infusionMesenchymal stem cellsSCI patientsFunctional statusFunctional improvementSpinal cord injury patientsSpinal Cord Independence MeasureASIA B patientsASIA C patientsPhase 2 studySerious adverse eventsCord injury patientsCurrent therapeutic optionsStem cellsASIA BASIA gradeC patientsNeurologic improvementAdverse eventsPostoperative spinal cord ischaemia: magnetic resonance imaging and clinical features
Yasuda N, Kuroda Y, Ito T, Sasaki M, Oka S, Ukai R, Nakanishi K, Mikami T, Shibata T, Harada R, Naraoka S, Kamada T, Kawaharada N. Postoperative spinal cord ischaemia: magnetic resonance imaging and clinical features. European Journal Of Cardio-Thoracic Surgery 2021, 60: 164-174. PMID: 33517384, DOI: 10.1093/ejcts/ezaa476.Peer-Reviewed Original ResearchConceptsIschemic spinal cord injurySpinal cord injuryMagnetic resonance imagingSpinal cord levelArtery territoryAortic surgeryAortic eventsCord levelCardiovascular surgeryAnterior spinal artery territoryPosterior spinal artery territoryResonance imagingThoracic spinal cord levelLumbar spinal cord levelsSpinal cord infarctionT2-weighted MRI scansSite of infarctionT2-weighted magnetic resonance imagesHigh-intensity areaCord infarctionInfarction patternArterial territoriesSerious complicationsClinical featuresCord injury
2020
Intravenous delivery of mesenchymal stem cells protects both white and gray matter in spinal cord ischemia
Yasuda N, Sasaki M, Kataoka-Sasaki Y, Nagahama H, Kocsis JD, Kawaharada N, Honmou O. Intravenous delivery of mesenchymal stem cells protects both white and gray matter in spinal cord ischemia. Brain Research 2020, 1747: 147040. PMID: 32771405, DOI: 10.1016/j.brainres.2020.147040.Peer-Reviewed Original ResearchConceptsIschemic spinal cord injuryIntravenous infusionMesenchymal stem cellsDiffusion tensor imagingGray matterLocomotor functionTherapeutic efficacyHind limb locomotor functionGray matter volume reductionPreservation of microvasculatureSpinal cord ischemiaLeft subclavian arteryPersistent motor deficitsVehicle-treated groupSpinal cord injuryStem cellsBSCB functionISCI ratsAortic surgeryCord ischemiaDevastating complicationNeuronal lossSubclavian arteryMotor deficitsCord injury
2019
Intravenous infusion of mesenchymal stem cells improves impaired cognitive function in a cerebral small vessel disease model
Nakazaki M, Sasaki M, Kataoka-Sasaki Y, Oka S, Suzuki J, Sasaki Y, Nagahama H, Hashi K, Kocsis JD, Honmou O. Intravenous infusion of mesenchymal stem cells improves impaired cognitive function in a cerebral small vessel disease model. Neuroscience 2019, 408: 361-377. PMID: 30999031, DOI: 10.1016/j.neuroscience.2019.04.018.Peer-Reviewed Original ResearchConceptsCerebral small vessel diseaseBlood-brain barrierProgressive brain atrophyVascular dementiaMesenchymal stem cellsAlzheimer's diseaseCognitive functionBrain atrophyIntravenous infusionEffects of MSCsInfused mesenchymal stem cellsSmall vessel diseaseEssential pathological featuresAccumulation of AβSpinal cord injuryBBB transport systemsStem cellsBBB functionAβ accumulationHypertensive ratsNeuronal damageFunctional recoveryVessel diseaseCord injuryPathological features
2018
Intravenous 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
2017
Mesenchymal Stem Cells
Sasaki M, Honmou O. Mesenchymal Stem Cells. 2017, 147-156. DOI: 10.1007/978-4-431-56059-3_12.Peer-Reviewed Original ResearchIntravenous infusionMesenchymal stem cellsAdult human bone marrowHuman bone marrowAnimal modelsBone marrowInfused mesenchymal stem cellsHuman stroke patientsSpinal cord injuryInitial clinical studiesInitial human studiesStem cellsAxonal sproutingCerebral strokeStroke patientsCord injuryFunctional improvementClinical studiesTherapeutic effectStroke modelHuman studiesInfusionStrokeMarrowHuman mesenchymal stem cells
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
2012
Mesenchymal stem cells: therapeutic outlook for stroke
Honmou O, Onodera R, Sasaki M, Waxman SG, Kocsis JD. Mesenchymal stem cells: therapeutic outlook for stroke. Trends In Molecular Medicine 2012, 18: 292-297. PMID: 22459358, DOI: 10.1016/j.molmed.2012.02.003.Peer-Reviewed Original ResearchConceptsMarrow-derived mesenchymal stem cellsTransplanted MSCsSpinal cord injuryInitial clinical studiesInitial human studiesBone marrow-derived mesenchymal stem cellsAdult bone marrow-derived mesenchymal stem cellsAdult human bone marrowAxonal sproutingCerebral ischemiaClinical outcomesNeuroprotective effectsCord injuryHuman bone marrowClinical studiesTherapeutic effectStroke modelAnimal modelsHuman studiesBone marrowMesenchymal stem cellsIntravenous deliveryTherapeutic outlookMSC deliveryStroke
2011
CNPase Expression in Olfactory Ensheathing Cells
Radtke C, Sasaki M, Lankford KL, Gallo V, Kocsis JD. CNPase Expression in Olfactory Ensheathing Cells. BioMed Research International 2011, 2011: 608496. PMID: 22174557, PMCID: PMC3228405, DOI: 10.1155/2011/608496.Peer-Reviewed Original ResearchConceptsOuter nerve layerOlfactory bulbNerve layerPeripheral nervesCNPase expressionOlfactory nerve axonsTransplantation of OECsSpinal cord injuryEndogenous Schwann cellsExpression of CNPaseTransplantation of olfactoryOlfactory Ensheathing CellsEnhanced green fluorescent proteinMyelination potentialCord injuryAxonal regenerationRegenerated axonsSchwann cellsTransgenic miceNerve axonsPeripheral myelinNerveCNPaseMyelinOECs
2009
BDNF-Hypersecreting Human Mesenchymal Stem Cells Promote Functional Recovery, Axonal Sprouting, and Protection of Corticospinal Neurons after Spinal Cord Injury
Sasaki M, Radtke C, Tan AM, Zhao P, Hamada H, Houkin K, Honmou O, Kocsis JD. BDNF-Hypersecreting Human Mesenchymal Stem Cells Promote Functional Recovery, Axonal Sprouting, and Protection of Corticospinal Neurons after Spinal Cord Injury. Journal Of Neuroscience 2009, 29: 14932-14941. PMID: 19940189, PMCID: PMC2825276, DOI: 10.1523/jneurosci.2769-09.2009.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBrain-Derived Neurotrophic FactorCells, CulturedCytoprotectionDisease Models, AnimalFemaleGene ExpressionGenetic VectorsGrowth ConesHumansMesenchymal Stem Cell TransplantationNerve RegenerationNeuronal PlasticityPyramidal TractsRatsRats, Sprague-DawleyRecovery of FunctionSpinal Cord InjuriesTransfectionTransplantation, HeterologousTreatment OutcomeConceptsSpinal cord injuryMesenchymal stem cellsCord injuryFunctional outcomeBone marrowAcute spinal cord injuryBrain-derived neurotrophic factorCorticospinal tract neuronsNumber of FGImproved functional outcomesPrimary motor cortexSpinal gray matterPotential therapeutic effectsStem cellsM1 cortexTransection lesionCorticospinal neuronsTract neuronsAxonal sproutingFunctional recoveryVentral hornNeuronal densitySerotonergic fibersLesion cavityMotor cortexUnique 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
Potential of olfactory ensheathing cells for cell-based therapy in spinal cord injury
Radtke C, Sasaki M, Lankford KL, Vogt PM, Kocsis JD. Potential of olfactory ensheathing cells for cell-based therapy in spinal cord injury. The Journal Of Rehabilitation Research And Development 2008, 45: 141-152. PMID: 18566933, DOI: 10.1682/jrrd.2007.03.0049.Peer-Reviewed Original ResearchConceptsSpinal cord injuryPeripheral nervous systemCentral nervous systemCord injuryAxonal regenerationNervous systemTreatment of SCIContusive spinal cord injuryPotential of olfactoryPermanent neurological deficitsSpecialized glial cellsCell therapy approachesCell transplantation approachesOEC biologyAxonal lossNeurological deficitsCell-based therapiesFunctional outcomeGlial cellsClinical studiesComplex lesionsMedicine cliniciansMacrophage activationTransplantation approachesInhibitory molecules
2007
Demyelinating diseases and potential repair strategies
Radtke C, Spies M, Sasaki M, Vogt PM, Kocsis JD. Demyelinating diseases and potential repair strategies. International Journal Of Developmental Neuroscience 2007, 25: 149-153. PMID: 17408905, PMCID: PMC2692731, DOI: 10.1016/j.ijdevneu.2007.02.002.Peer-Reviewed Original ResearchConceptsMultiple sclerosisInjury modelSpinal cord injuryCell-based strategiesAxon lossNerve compressionNeuroprotective potentialCord injuryFunctional outcomeClinical studiesMS lesionsTherapeutic goalsVulnerable axonsCellular transplantationNeurological disordersDemyelinationRemyelinationNeuroprotectionPotential repair strategiesCell typesSclerosisTransplantationInjuryLesionsAxonsRemyelination 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