2015
A Promising PET Tracer for Imaging of α7 Nicotinic Acetylcholine Receptors in the Brain: Design, Synthesis, and in Vivo Evaluation of a Dibenzothiophene-Based Radioligand
Teodoro R, Scheunemann M, Deuther-Conrad W, Wenzel B, Fasoli FM, Gotti C, Kranz M, Donat CK, Patt M, Hillmer A, Zheng MQ, Peters D, Steinbach J, Sabri O, Huang Y, Brust P. A Promising PET Tracer for Imaging of α7 Nicotinic Acetylcholine Receptors in the Brain: Design, Synthesis, and in Vivo Evaluation of a Dibenzothiophene-Based Radioligand. Molecules 2015, 20: 18387-18421. PMID: 26473809, PMCID: PMC6332508, DOI: 10.3390/molecules201018387.Peer-Reviewed Original ResearchMeSH KeywordsAlpha7 Nicotinic Acetylcholine ReceptorAnimalsAza CompoundsBrainBrain MappingFluorine RadioisotopesHaplorhiniHumansHydrogen BondingKineticsLigandsOxidesPiperazinesPositron-Emission TomographyProtein BindingRadiopharmaceuticalsRatsReceptors, Serotonin, 5-HT3Structure-Activity RelationshipSwineThiophenesTissue DistributionConceptsStructure-activity relationshipsCationic centerPositron emission tomographyHydrogen bond acceptor functionalitiesNicotinic acetylcholine receptorsAcceptor functionalitiesAcetylcholine receptorsNew ligandsDibenzothiophene dioxideΑ7 nicotinic acetylcholine receptorCompound 7Promising PET tracerNew basic structureRadioligand displacement studiesTwo-tissue compartment modelLigandsEmission tomographyPET radioligandKinetic analysisFurther evaluationDynamic positron emission tomographyPET tracersInitial evaluationVivo evaluationBrain
2013
Synthesis and Evaluation of 11C-LY2795050 as a κ-Opioid Receptor Antagonist Radiotracer for PET Imaging
Zheng MQ, Nabulsi N, Kim SJ, Tomasi G, Lin SF, Mitch C, Quimby S, Barth V, Rash K, Masters J, Navarro A, Seest E, Morris ED, Carson RE, Huang Y. Synthesis and Evaluation of 11C-LY2795050 as a κ-Opioid Receptor Antagonist Radiotracer for PET Imaging. Journal Of Nuclear Medicine 2013, 54: 455-463. PMID: 23353688, PMCID: PMC3775344, DOI: 10.2967/jnumed.112.109512.Peer-Reviewed Original ResearchConceptsKappa-opioid receptorsAntagonist radiotracersSelective kappa opioid receptorPET imagingKOR knockout micePathophysiology of depressionSelective KOR antagonistRadioligand competition binding assaysEx vivo analysisDose-dependent mannerFavorable pharmacokinetic propertiesFull antagonist activityKOR antagonistsPeripheral metabolismKOR agonistsTracer candidatesLY2795050Sprague-DawleyAntagonist tracersKnockout miceSpecific binding signalsCompetition binding assaysRhesus monkeysPharmacokinetic propertiesAntagonist activity