2022
Radiochemical Synthesis and Evaluation of 3‑[11C]Methyl-4-aminopyridine in Rodents and Nonhuman Primates for Imaging Potassium Channels in the CNS
Sun Y, Guehl N, Zhou Y, Takahashi K, Belov V, Dhaynaut M, Moon S, Fakhri G, Normandin M, Brugarolas P. Radiochemical Synthesis and Evaluation of 3‑[11C]Methyl-4-aminopyridine in Rodents and Nonhuman Primates for Imaging Potassium Channels in the CNS. ACS Chemical Neuroscience 2022, 13: 3342-3351. PMID: 36417797, PMCID: PMC9732819, DOI: 10.1021/acschemneuro.2c00364.Peer-Reviewed Original ResearchConceptsRegional brain time-activity curvesBrain time-activity curvesOne-tissue compartment modelBlood-brain barrierConsistent with <i>inNonhuman primatesTime-activity curvesPositron emission tomographySpinal cord injuryDemyelinated neuronsNeurological symptomsPotassium channelsNeuronal conductionBrain uptakeEmission tomographyStille cross-couplingMultiple sclerosisCord injurySlow kineticsBrain permeabilityTraumatic brainMyelin sheathStronger binding affinityNeuronsBrainHuman biodistribution and radiation dosimetry of the demyelination tracer [18F]3F4AP
Brugarolas P, Wilks M, Noel J, Kaiser J, Vesper D, Ramos-Torres K, Guehl N, Macdonald-Soccorso M, Sun Y, Rice P, Yokell D, Lim R, Normandin M, El Fakhri G. Human biodistribution and radiation dosimetry of the demyelination tracer [18F]3F4AP. European Journal Of Nuclear Medicine And Molecular Imaging 2022, 50: 344-351. PMID: 36197499, PMCID: PMC9816249, DOI: 10.1007/s00259-022-05980-w.Peer-Reviewed Original ResearchConceptsRadiation dosimetryTime-activity curvesAdverse eventsEffective doseMultiple bed positionsComprehensive metabolic panelNonhuman primatesHealthy human volunteersNo adverse eventsDynamic PET scansVoltage-gated potassiumAnimal models of neurological diseasesNonhuman primate studiesModels of neurological diseasesHuman biodistributionAverage effective doseMetabolic panelDosimetryOLINDA softwareHealthy volunteersUrinary bladderPET scansDemyelinating lesionsBed positionAnimal modelsSynthesis and Characterization of 5‑(2-Fluoro-4‑[11C]methoxyphenyl)-2,2-dimethyl-3,4-dihydro‑2H‑pyrano[2,3‑b]pyridine-7-carboxamide as a PET Imaging Ligand for Metabotropic Glutamate Receptor 2
Yuan G, Dhaynaut M, Lan Y, Guehl N, Huynh D, Iyengar S, Afshar S, Jain M, Pickett J, Kang H, Wang H, Moon S, Ondrechen M, Wang C, Shoup T, Fakhri G, Normandin M, Brownell A. Synthesis and Characterization of 5‑(2-Fluoro-4‑[11C]methoxyphenyl)-2,2-dimethyl-3,4-dihydro‑2H‑pyrano[2,3‑b]pyridine-7-carboxamide as a PET Imaging Ligand for Metabotropic Glutamate Receptor 2. Journal Of Medicinal Chemistry 2022, 65: 2593-2609. PMID: 35089713, PMCID: PMC9434702, DOI: 10.1021/acs.jmedchem.1c02004.Peer-Reviewed Original ResearchConceptsNegative allosteric modulatorsMetabotropic glutamate receptor 2Positron emission tomographyGlutamate receptor 2MGluR2 functionNeuropsychiatric disordersDrug effectsBrain heterogeneityReceptor 2Allosteric modulatorsMGluR2Nonhuman primatesBrain imagingPositron emission tomography imagingPositron emission tomography imaging ligandsHigh molar activityEmission tomographyExcellent radiochemical purityImaging ligandsBlocking agentsPET imagingMolar activityTherapeutic targetMetabotropicDisorders
2017
Brain Penetration of the ROS1/ALK Inhibitor Lorlatinib Confirmed by PET
Collier T, Maresca K, Normandin M, Richardson P, McCarthy T, Liang S, Waterhouse R, Vasdev N. Brain Penetration of the ROS1/ALK Inhibitor Lorlatinib Confirmed by PET. Molecular Imaging 2017, 16: 1536012117736669. PMID: 29067878, PMCID: PMC5661750, DOI: 10.1177/1536012117736669.Peer-Reviewed Original ResearchConceptsPositron emission tomographyLung cancerTreatment of non-small-cell lung cancerBrain metastases of patientsNon-small-cell lung cancerPositron emission tomography evaluationNonhuman primatesRodent tumor modelsGoal of clinical translationOptimal therapeutic outcomesMetastasis of patientsBlood-brain barrierBrain metastasesPF-06463922Preclinical modelsClinical trial investigatorsTumor modelMolecular alterationsLorlatinibTherapeutic outcomesCancer therapeuticsBrain penetrationClinical translationEmission tomographyTrial investigators
2013
Neurovascular coupling to D2/D3 dopamine receptor occupancy using simultaneous PET/functional MRI
Sander C, Hooker J, Catana C, Normandin M, Alpert N, Knudsen G, Vanduffel W, Rosen B, Mandeville J. Neurovascular coupling to D2/D3 dopamine receptor occupancy using simultaneous PET/functional MRI. Proceedings Of The National Academy Of Sciences Of The United States Of America 2013, 110: 11169-11174. PMID: 23723346, PMCID: PMC3703969, DOI: 10.1073/pnas.1220512110.Peer-Reviewed Original ResearchConceptsFunctional magnetic resonance imagingDopamine receptor occupancyReceptor occupancyPositron emission tomographyFunctional magnetic resonance imaging measuresDose of racloprideBasal dopamine levelsDopamine-rich striatumInvestigation of neurovascular couplingDomains of spaceAnesthetized nonhuman primatesSimultaneous PET/fMRIDopamine levelsBrain activitySimultaneous neuroimagingBinding potentialBasal gangliaReceptor systemNonhuman primatesPositron emission tomography tracersMagnetic resonance imagingLiterature differencesEmission tomographyMap associationsNeurovascular coupling