2023
Preclinical 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 trials
2020
Synthesis 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
2016
Synthesis and Preclinical Evaluation of 11C-UCB-J as a PET Tracer for Imaging the Synaptic Vesicle Glycoprotein 2A in the Brain
Nabulsi N, Mercier J, Holden D, Carré S, Najafzadeh S, Vandergeten MC, Lin SF, Deo A, Price N, Wood M, Lara-Jaime T, Montel F, Laruelle M, Carson RE, Hannestad J, Huang Y. Synthesis and Preclinical Evaluation of 11C-UCB-J as a PET Tracer for Imaging the Synaptic Vesicle Glycoprotein 2A in the Brain. Journal Of Nuclear Medicine 2016, 57: 777-784. PMID: 26848175, DOI: 10.2967/jnumed.115.168179.Peer-Reviewed Original ResearchConceptsSynaptic vesicle glycoprotein 2AWhole-body biodistributionPET radiotracersNonhuman primatesDose-limiting organHigher free fractionGray matter regionsBaseline VTNondisplaceable distribution volumeAntiepileptic drugsVitro inhibition constantSynaptic densityPreclinical evaluationMonkey brainDistribution volumeArterial samplingEndocrine cellsRegional volumesMatter regionsRhesus macaquesPET tracersUCBFree fractionBrainTarget occupancy