2024
Noninvasive quantification of [18F]SynVesT-1 binding using simplified reference tissue model 2
Naganawa M, Gallezot J, Li S, Nabulsi N, Henry S, Cai Z, Matuskey D, Huang Y, Carson R. Noninvasive quantification of [18F]SynVesT-1 binding using simplified reference tissue model 2. European Journal Of Nuclear Medicine And Molecular Imaging 2024, 1-9. PMID: 39155309, DOI: 10.1007/s00259-024-06885-6.Peer-Reviewed Original ResearchPositron emission tomographyCentrum semiovaleReference regionPositron emission tomography scanTest-retest variabilityTest-retest reproducibilitySynaptic vesicle glycoprotein 2AOne-tissue compartmentArterial blood samplesRetest scansGold standardBrain uptakeEmission tomographyBlood samplesCerebellumNoninvasive quantificationSRTM2ConclusionOur findingsPopulation averageHealthy participantsMetabolite analysisScan timeBPNDSemiovaleRepetitive Mild Closed-Head Injury Induced Synapse Loss and Increased Local BOLD-fMRI Signal Homogeneity
Markicevic M, Mandino F, Toyonaga T, Cai Z, Fesharaki-Zadeh A, Shen X, Strittmatter S, Lake E. Repetitive Mild Closed-Head Injury Induced Synapse Loss and Increased Local BOLD-fMRI Signal Homogeneity. Journal Of Neurotrauma 2024 PMID: 39096127, DOI: 10.1089/neu.2024.0095.Peer-Reviewed Original ResearchChronic variable stressRegional homogeneityFunctional brain abnormalitiesSynapse densityMild closed-head injuryClosed-head injuryTraumatic brain injuryTreat traumatic brain injuryNeurobiological alterationsMild head injuryVariable stressBrain abnormalitiesPositron emission tomographyMultimodal studiesSynaptic densityMagnetic resonance imagingBrain imagingBrain injuryInduce synapse lossFMRIInjured miceMouse modelEmission tomographyResonance imagingCompensatory mechanismsFirst-in-Human Study of 18F-SynVesT-2: An SV2A PET Imaging Probe with Fast Brain Kinetics and High Specific Binding
Drake L, Wu Y, Naganawa M, Asch R, Zheng C, Najafzadeh S, Pracitto R, Lindemann M, Li S, Ropchan J, Labaree D, Emery P, Dias M, Henry S, Nabulsi N, Matuskey D, Hillmer A, Gallezot J, Carson R, Cai Z, Huang Y. First-in-Human Study of 18F-SynVesT-2: An SV2A PET Imaging Probe with Fast Brain Kinetics and High Specific Binding. Journal Of Nuclear Medicine 2024, 65: jnumed.123.266470. PMID: 38360052, PMCID: PMC10924160, DOI: 10.2967/jnumed.123.266470.Peer-Reviewed Original ResearchFirst-in-human studyPlasma free fractionTime-activity curvesCentrum semiovaleNonhuman primate's resultsFirst-in-humanFree fractionNondisplaceable binding potentialRegional time-activity curvesLow nonspecific uptakeRegional distribution volumesHigh-resolution research tomograph scannerTest-retest reproducibilityCerebral blood flowSynaptic vesicle glycoprotein 2AHealthy volunteersArterial input functionNonspecific uptakePET imaging probeDistribution volumeSynapse densityIndividual MR imagesHighest specific bindingMR imagingPET imaging
2023
PET Imaging of Rho‐Associated Protein Kinase 2 in A Mouse Model of Alzheimer’s Disease
Zheng C, Nicholson L, Chen B, Toyonaga T, Liu M, Strittmatter S, Carson R, Huang Y, Cai Z. PET Imaging of Rho‐Associated Protein Kinase 2 in A Mouse Model of Alzheimer’s Disease. Alzheimer's & Dementia 2023, 19 DOI: 10.1002/alz.081695.Peer-Reviewed Original ResearchAPP/PS1 micePS1 miceWT miceCentral nervous systemTime-activity curvesAlzheimer's diseaseAPP/PS1 transgenic miceAPP/PS1 transgenic AD miceMouse brainAge-matched WT controlsPS1 transgenic miceAPP/PS1Transgenic AD miceDynamic PET imaging dataROCK2 protein expressionAD drug discoveryHigh tracer uptakeMin post injectionPET imaging resultsExpression levelsReference tissue model 2PET imaging dataProtein expression levelsAD miceRegional time-activity curvesNeuronal transcriptome, tau and synapse loss in Alzheimer’s knock-in mice require prion protein
Stoner A, Fu L, Nicholson L, Zheng C, Toyonaga T, Spurrier J, Laird W, Cai Z, Strittmatter S. Neuronal transcriptome, tau and synapse loss in Alzheimer’s knock-in mice require prion protein. Alzheimer's Research & Therapy 2023, 15: 201. PMID: 37968719, PMCID: PMC10647125, DOI: 10.1186/s13195-023-01345-z.Peer-Reviewed Original ResearchConceptsSynapse lossDKI miceTau accumulationBrain immune activationNeural network dysfunctionPhospho-tau accumulationAccumulation of tauNeuronal genesInflammatory markersAD miceAβ levelsPrion proteinDystrophic neuritesImmune activationTau pathologyNeuronal gene expressionAmyloid-β OligomersGliotic reactionNetwork dysfunctionBehavioral deficitsSynaptic failureAD modelMemory impairmentAlzheimer's diseaseFunction of ageDecreased Synaptic Vesicle Glycoprotein 2A Binding in the Human Postmortem Essential Tremor Cerebellum: Evidence of Reduction in Synaptic Density
Yang Y, Zheng C, Chen B, Hernandez N, Faust P, Cai Z, Louis E, Matuskey D. Decreased Synaptic Vesicle Glycoprotein 2A Binding in the Human Postmortem Essential Tremor Cerebellum: Evidence of Reduction in Synaptic Density. The Cerebellum 2023, 23: 1053-1060. PMID: 37783917, DOI: 10.1007/s12311-023-01611-8.Peer-Reviewed Original ResearchSynaptic vesicle glycoprotein 2AAge-matched controlsSynaptic densityEssential tremorDentate nucleusCerebellar cortexET casesPilot studyLower synaptic densityPrevalent neurological diseaseNumerous degenerative changesNeuropathological alterationsMild atrophyNeuropathological studiesSynaptic markersMethodsThe current studyPostmortem studiesDegenerative changesNeuroimaging signaturesET patientsNeurological diseasesCerebellumEvidence of reductionCortexAtrophyPreclinical evaluation of a brain penetrant PARP PET imaging probe in rat glioblastoma and nonhuman primates
Chen B, Ojha D, Toyonaga T, Tong J, Pracitto R, Thomas M, Liu M, Kapinos M, Zhang L, Zheng M, Holden D, Fowles K, Ropchan J, Nabulsi N, De Feyter H, Carson R, Huang Y, Cai Z. Preclinical evaluation of a brain penetrant PARP PET imaging probe in rat glioblastoma and nonhuman primates. European Journal Of Nuclear Medicine And Molecular Imaging 2023, 50: 2081-2099. PMID: 36849748, DOI: 10.1007/s00259-023-06162-y.Peer-Reviewed Original ResearchConceptsPositron emission tomographyHealthy nonhuman primatesVolume of distributionDistribution volume ratioBrain kineticsRat glioblastoma modelPreclinical evaluationBrain regionsGlioblastoma modelPET tracersNonhuman primatesTumor-bearing ratsEx vivo biodistributionPET imaging resultsActive clinical trialsTreatment of glioblastomaHigh specific uptakeDynamic PET scansNoninvasive quantificationBrain positron emission tomographyNondisplaceable volumeBrain penetrationLow nonspecific uptakePrognostic informationClinical trialsDecreased synaptic vesicle glycoprotein 2A binding in a rodent model of familial Alzheimer's disease detected by [18F]SDM-16
Zheng C, Toyonaga T, Chen B, Nicholson L, Mennie W, Liu M, Spurrier J, Deluca K, Strittmatter S, Carson R, Huang Y, Cai Z. Decreased synaptic vesicle glycoprotein 2A binding in a rodent model of familial Alzheimer's disease detected by [18F]SDM-16. Frontiers In Neurology 2023, 14: 1045644. PMID: 36846134, PMCID: PMC9945093, DOI: 10.3389/fneur.2023.1045644.Peer-Reviewed Original ResearchStandardized uptake value ratioDistribution volume ratioAlzheimer's diseaseSimplified reference tissue modelSynapse lossMouse modelAPP/PS1 miceAge-matched wild-type miceAPPswe/PS1dE9 mouse modelAPP/PS1 AD mouse modelSlow brain kineticsAD mouse modelSynaptic vesicle glycoprotein 2APseudo-reference regionWild-type miceUptake value ratioMonths of ageDifferent brain regionsDifferent imaging windowsFamilial Alzheimer's diseasePET imaging studiesReference tissue modelPS1 miceBrain stemBrain kinetics
2022
Poly (ADP-ribose) polymerases as PET imaging targets for central nervous system diseases
Tong J, Chen B, Tan P, Kurpiewski S, Cai Z. Poly (ADP-ribose) polymerases as PET imaging targets for central nervous system diseases. Frontiers In Medicine 2022, 9: 1062432. PMID: 36438061, PMCID: PMC9685622, DOI: 10.3389/fmed.2022.1062432.Peer-Reviewed Original ResearchPositron emission tomographyCentral nervous systemCNS diseaseNeurological disordersCentral nervous system diseaseNoninvasive positron emission tomographyNervous system diseasesIntense DNA damagePlausible therapeutic targetTherapeutic responseInflammatory responseSystem diseasesTherapeutic targetNervous systemNeurological diseasesEmission tomographyDiseasePARP1/2 inhibitorsPoly (ADP-ribose) polymeraseExpression levelsImaging targetsDisordersDNA damagePARP1/2InflammationP-278 Development and preliminary evaluation of the fluorine-18 labeled benzamido-dihydroindene derivative [18F]FBAIN as a potential radiotracer for PET imaging of the chemokine receptor CXCR5
Lindemann M, Tong J, Chen B, Kranz M, Oteiza A, Martin-Armas M, Sadasivam P, Drake L, Liu M, Spencer E, Huang Y, Cai Z. P-278 Development and preliminary evaluation of the fluorine-18 labeled benzamido-dihydroindene derivative [18F]FBAIN as a potential radiotracer for PET imaging of the chemokine receptor CXCR5. Nuclear Medicine And Biology 2022, 108: s200-s201. DOI: 10.1016/s0969-8051(22)00414-0.Peer-Reviewed Original ResearchP-303 Synthesis and preclinical evaluation of PD-L1 PET tracer [18F]FDHPA in mice
Tong J, Chen B, Alluri S, Gu J, Zheng M, Zheng C, Felchner Z, Gao H, Zhang L, Kapinos M, Labaree D, Ropchan J, Nabulsi N, Marquez-Nostra B, Carson R, Huang Y, Cai Z. P-303 Synthesis and preclinical evaluation of PD-L1 PET tracer [18F]FDHPA in mice. Nuclear Medicine And Biology 2022, 108: s214. DOI: 10.1016/s0969-8051(22)00439-5.Peer-Reviewed Original ResearchP-304 The synthesis and bioevaluation of a novel and brain penetrable PARP1 tracer [18F]Pamiparib in rodents and nonhuman primates
Tong J, Chen B, Gu J, Alluri S, Zheng M, Zheng C, Felchner Z, Gao H, Zhang L, Kapinos M, Labaree D, Ropchan J, Nabulsi N, Carson R, Huang Y, Cai Z. P-304 The synthesis and bioevaluation of a novel and brain penetrable PARP1 tracer [18F]Pamiparib in rodents and nonhuman primates. Nuclear Medicine And Biology 2022, 108: s214-s215. DOI: 10.1016/s0969-8051(22)00440-1.Peer-Reviewed Original Research
2020
PET Imaging of Synaptic Vesicle Protein 2A
Finnema S, Li S, Cai Z, Naganawa M, Chen M, Matuskey D, Nabulsi N, Esterlis I, Holmes S, Radhakrishnan R, Toyonaga T, Huang Y, Carson R. PET Imaging of Synaptic Vesicle Protein 2A. 2020, 993-1019. DOI: 10.1007/978-3-030-53176-8_29.ChaptersSynaptic vesicle protein 2APositron emission tomographyAntiepileptic drug levetiracetamInitial PET studiesPET imagingPET studiesSynaptic densityDrug levetiracetamHigh-affinity SV2A ligandsBrain regionsSynaptic density lossNeuropathological diseasesDisease-modifying therapiesLarge patient cohortMajor depressive disorderProtein 2APET imaging resultsPosttraumatic stress disorderPatient groupPatient cohortDepressive disorderClinical valueParkinson's diseaseEfficacy assessmentSynaptic vesicle proteinsSynthesis and Preclinical Evaluation of an 18F‑Labeled Synaptic Vesicle Glycoprotein 2A PET Imaging Probe: [18F]SynVesT‑2
Cai Z, Li S, Zhang W, Pracitto R, Wu X, Baum E, Finnema SJ, Holden D, Toyonaga T, Lin SF, Lindemann M, Shirali A, Labaree DC, Ropchan J, Nabulsi N, Carson RE, Huang Y. Synthesis and Preclinical Evaluation of an 18F‑Labeled Synaptic Vesicle Glycoprotein 2A PET Imaging Probe: [18F]SynVesT‑2. ACS Chemical Neuroscience 2020, 11: 592-603. PMID: 31961649, DOI: 10.1021/acschemneuro.9b00618.Peer-Reviewed Original ResearchConceptsPET imaging probeHigh specific binding signalsNon-human primate brainSynaptic vesicle glycoprotein 2ATraumatic brain injuryPost-traumatic stress disorderMultiple sclerosisBrain injuryParkinson's diseasePreclinical evaluationSpecific binding signalsPrimate brainAlzheimer's diseaseNeuropsychiatric diseasesPresynaptic vesiclesStress disorderDiseaseImaging probeTransmembrane glycoproteinSclerosisPrognosisEpilepsyInjuryStrokeSV2A
2018
PET imaging of synaptic density: A new tool for investigation of neuropsychiatric diseases
Cai Z, Li S, Matuskey D, Nabulsi N, Huang Y. PET imaging of synaptic density: A new tool for investigation of neuropsychiatric diseases. Neuroscience Letters 2018, 691: 44-50. PMID: 30075287, PMCID: PMC6339829, DOI: 10.1016/j.neulet.2018.07.038.Peer-Reviewed Original Research
2017
PET Imaging for Early Detection of Alzheimer’s Disease From Pathologic to Physiologic Biomarkers
Bao W, Jia H, Finnema S, Cai Z, Carson RE, Huang YH. PET Imaging for Early Detection of Alzheimer’s Disease From Pathologic to Physiologic Biomarkers. PET Clinics 2017, 12: 329-350. PMID: 28576171, DOI: 10.1016/j.cpet.2017.03.001.Peer-Reviewed Original Research