Osamu Honmou, MD, PhD
Assistant Professor AdjunctAbout
Research
Publications
2024
Mesenchymal Stem Cells and Their Extracellular Vesicles: Therapeutic Mechanisms for Blood–Spinal Cord Barrier Repair Following Spinal Cord Injury
Nakazaki M, Yokoyama T, Lankford K, Hirota R, Kocsis J, Honmou O. Mesenchymal Stem Cells and Their Extracellular Vesicles: Therapeutic Mechanisms for Blood–Spinal Cord Barrier Repair Following Spinal Cord Injury. International Journal Of Molecular Sciences 2024, 25: 13460. PMID: 39769223, PMCID: PMC11677717, DOI: 10.3390/ijms252413460.Peer-Reviewed Original ResearchConceptsBlood-spinal cord barrierBSCB repairMesenchymal stromal/stem cellsSpinal cord injuryMSC-EVsMesenchymal stromal/stem cell therapyBlood-spinal cord barrier integritySpinal cord homeostasisBlood-spinal cord barrier permeabilityCord injuryImpaired axonal regenerationTreating spinal cord injuryCell-free alternativeExtracellular vesiclesTight junction proteinsSpinal neural tissueBlood-brain barrierImprove patient outcomesAnti-inflammatory propertiesImmune cellsPreclinical studiesJunction proteinsSecreted extracellular vesiclesClinical trialsReduce inflammationMultiple intravenous infusions versus a single infusion of mesenchymal stem cells in a rat model of cerebral ischemia.
Yokoyama T, Sasaki M, Nagahama H, Kataoka-Sasaki Y, Ukai R, Oka S, Kocsis J, Honmou O. Multiple intravenous infusions versus a single infusion of mesenchymal stem cells in a rat model of cerebral ischemia. Journal Of Neurosurgery 2024, 142: 684-692. PMID: 39454218, DOI: 10.3171/2024.6.jns241111.Peer-Reviewed Original ResearchInfusion of mesenchymal stem cellsMiddle cerebral artery occlusionMiddle cerebral artery occlusion inductionMesenchymal stem cellsCorpus callosumSystemic infusion of mesenchymal stem cellsMultiple infusionsAcute phaseMesenchymal stem cell infusionCerebral ischemiaStem cellsMultiple intravenous infusionsRat model of cerebral ischemiaHigh-dose infusionPermanent middle cerebral artery occlusionIschemic lesion volumeModels of cerebral ischemiaCC thicknessRandomized clinical trialsCerebral artery occlusionNeural tractsAcute cerebral strokeFunctional recovery outcomesMRI diffusion tensor imagingMSC-3Intravenous Infusion of Autologous Mesenchymal Stem Cells Expanded in Auto Serum for Chronic Spinal Cord Injury Patients: A Case Series
Hirota R, Sasaki M, Iyama S, Kurihara K, Fukushi R, Obara H, Oshigiri T, Morita T, Nakazaki M, Namioka T, Namioka A, Onodera R, Kataoka-Sasaki Y, Oka S, Takemura M, Ukai R, Yokoyama T, Sasaki Y, Yamashita T, Kobayashi M, Okuma Y, Kondo R, Aichi R, Ohmatsu S, Kawashima N, Ito Y, Kobune M, Takada K, Ishiai S, Ogata T, Teramoto A, Yamashita T, Kocsis J, Honmou O. Intravenous Infusion of Autologous Mesenchymal Stem Cells Expanded in Auto Serum for Chronic Spinal Cord Injury Patients: A Case Series. Journal Of Clinical Medicine 2024, 13: 6072. PMID: 39458022, PMCID: PMC11509003, DOI: 10.3390/jcm13206072.Peer-Reviewed Original ResearchAmerican Spinal Injury Association Impairment ScaleSevere spinal cord injuryMesenchymal stem cell infusionAutologous mesenchymal stem cellsIntravenous infusionCase seriesMesenchymal stem cellsQuality of lifeAuto-serumSpinal cord injuryFunctional improvementChronic spinal cord injury patientsIntravenous infusion of mesenchymal stem cellsInfusion of mesenchymal stem cellsStem cellsCord injurySpinal Cord Independence Measure IIIAmerican Spinal Injury Association Impairment Scale grades CSpinal cord injury patientsChronic SCI patientsClassification of Spinal Cord InjuryNeurological Classification of Spinal Cord InjurySignificant functional improvementAssociation Impairment ScaleInternational Standards for Neurological Classification of Spinal Cord InjuryIntravenous infusion of auto-serum-expanded autologous mesenchymal stem cells into chronic severe brain injury patients
Yamaki T, Oka S, Iyama S, Sasaki M, Onodera R, Kataoka-Sasaki Y, Namioka T, Namioka A, Nakazaki M, Takemura M, Ukai R, Yokoyama T, Sasaki Y, Yamashita T, Kobayashi M, Yamaguchi M, Fukino M, Takazawa T, Hayasaka M, Owaku T, Funakura M, Onodera S, Ito Y, Kobune M, Kato J, Ishiai S, Kocsis J, Odaki M, Iwadate Y, Kobayashi S, Honmou O. Intravenous infusion of auto-serum-expanded autologous mesenchymal stem cells into chronic severe brain injury patients. Interdisciplinary Neurosurgery 2024, 36: 101927. DOI: 10.1016/j.inat.2023.101927.Peer-Reviewed Original ResearchSevere brain injury patientsAutologous mesenchymal stem cellsBrain injury patientsIntravenous infusionMesenchymal stem cellsAdverse eventsInjury patientsInfused mesenchymal stem cellsHealth Stroke ScaleSerious adverse eventsFugl-Meyer AssessmentInitial case seriesBrain metabolic activityStem cellsMSC infusionStroke ScaleNeurological deteriorationBarthel IndexCase seriesCNS tumorsNeurological functionFunctional statusFunctional improvementChronic patientsPlacebo effectA 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
Rehabilitation facilitates functional improvement following intravenous infusion of mesenchymal stem cells in the chronic phase of cerebral ischemia in rats
Yamashita T, Sasaki M, Sasaki Y, Nagahama H, Oka S, Kataoka-Sasaki Y, Ukai R, Yokoyama T, Kobayashi M, Kakizawa M, Kocsis J, Honmou O. Rehabilitation facilitates functional improvement following intravenous infusion of mesenchymal stem cells in the chronic phase of cerebral ischemia in rats. Brain Research 2023, 1825: 148709. PMID: 38072373, DOI: 10.1016/j.brainres.2023.148709.Peer-Reviewed Original Research