2020
Quantification of SV2A Binding in Rodent Brain Using [18F]SynVesT-1 and PET Imaging
Sadasivam P, Fang XT, Toyonaga T, Lee S, Xu Y, Zheng MQ, Spurrier J, Huang Y, Strittmatter SM, Carson RE, Cai Z. Quantification of SV2A Binding in Rodent Brain Using [18F]SynVesT-1 and PET Imaging. Molecular Imaging And Biology 2020, 23: 372-381. PMID: 33258040, PMCID: PMC8105262, DOI: 10.1007/s11307-020-01567-9.Peer-Reviewed Original ResearchConceptsBrain stemAlzheimer's diseaseMin postinjectionAnimal modelsAPP/PS1 miceReference regionStandardized uptake value ratioDynamic PET imaging dataUptake value ratioRodent brain tissueStatic PET scansDifferent imaging windowsPET imaging dataWild-type controlsReference tissue modelPS1 miceAD pathogenesisTherapeutic effectMouse modelRodent modelsLittermate controlsPET scansRodent brainPreclinical imaging studiesTherapeutic drug efficacy
2019
In Vivo Synaptic Density Imaging with 11C-UCB-J Detects Treatment Effects of Saracatinib in a Mouse Model of Alzheimer Disease
Toyonaga T, Smith LM, Finnema SJ, Gallezot JD, Naganawa M, Bini J, Mulnix T, Cai Z, Ropchan J, Huang Y, Strittmatter SM, Carson RE. In Vivo Synaptic Density Imaging with 11C-UCB-J Detects Treatment Effects of Saracatinib in a Mouse Model of Alzheimer Disease. Journal Of Nuclear Medicine 2019, 60: 1780-1786. PMID: 31101744, PMCID: PMC6894376, DOI: 10.2967/jnumed.118.223867.Peer-Reviewed Original ResearchConceptsAPP/PS1 micePS1 miceAlzheimer's diseaseWT miceSynaptic densityC-UCBDrug washoutTreatment effectsPresenilin 1 (PS1) double transgenic miceHippocampal synaptic densityAPP/PS1Double transgenic miceEnd of treatmentWild-type miceAmyloid precursor proteinEarly Alzheimer's diseaseSignificant differencesSUVR-1New PET tracersMild cognitive impairmentAD miceSynaptic deficitsOral gavageAD treatmentHealthy subjects
1994
Activated mutants of the alpha subunit of G(o) promote an increased number of neurites per cell
Strittmatter S, Fishman M, Zhu X. Activated mutants of the alpha subunit of G(o) promote an increased number of neurites per cell. Journal Of Neuroscience 1994, 14: 2327-2338. PMID: 8158271, PMCID: PMC6577129, DOI: 10.1523/jneurosci.14-04-02327.1994.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBase SequenceCell LineChlorocebus aethiopsDNA PrimersDose-Response Relationship, DrugGTP-Binding ProteinsIntercellular Signaling Peptides and ProteinsKineticsMacromolecular SubstancesMolecular Sequence DataMutagenesis, Site-DirectedNeuritesNeuroblastomaPC12 CellsPeptidesPertussis ToxinPoint MutationTransfectionTumor Cells, CulturedVirulence Factors, BordetellaWasp VenomsConceptsAlpha oNumber of neuritesPertussis toxin-sensitive G proteinToxin-sensitive G proteinGrowth conesAlpha subunitG proteinsNeurite outgrowthTotal neurite lengthN1E-115 cellsAlpha i2Activated alpha subunitNeuroblastoma cellsNeurite numberNeurite lengthNeuronal growth conesAlpha sOncogenic mutationsActivation stateO mutantsActivationNeuritesCellsPoint mutationsSubunits
1993
GAP-43 augments G protein-coupled receptor transduction in Xenopus laevis oocytes.
Strittmatter SM, Cannon SC, Ross EM, Higashijima T, Fishman MC. GAP-43 augments G protein-coupled receptor transduction in Xenopus laevis oocytes. Proceedings Of The National Academy Of Sciences Of The United States Of America 1993, 90: 5327-5331. PMID: 7685122, PMCID: PMC46709, DOI: 10.1073/pnas.90.11.5327.Peer-Reviewed Original ResearchMeSH KeywordsAcetylcholineAnimalsCalciumCattleChloride ChannelsFemaleGAP-43 ProteinGrowth SubstancesGTP-Binding ProteinsHumansInositol 1,4,5-TrisphosphateIon Channel GatingIon ChannelsKineticsMembrane GlycoproteinsMembrane PotentialsMembrane ProteinsNerve Tissue ProteinsOocytesReceptors, MuscarinicRecombinant ProteinsSignal TransductionXenopus laevisConceptsGAP-43Receptor transductionG protein-coupled receptor agonistsCalcium-activated chloride channelXenopus laevis oocytesProtein GAP-43Neuronal protein GAP-43Receptor agonistInjection of inositolLaevis oocytesReceptor stimulationOocyte responseGrowth cone motilityChloride channelsSignal transductionIntracellular regulatorsIntracellular signalsMolecular mechanismsTransductionOocytesHigh levelsAgonistsFunctional expression of sodium channel mutations identified in families with periodic paralysis
Cannon S, Strittmatter S. Functional expression of sodium channel mutations identified in families with periodic paralysis. Neuron 1993, 10: 317-326. PMID: 8382500, DOI: 10.1016/0896-6273(93)90321-h.Peer-Reviewed Original ResearchConceptsSodium channel alpha subunitChannel alpha subunitAlpha subunitFunctional expressionMammalian cell linesSame functional defectSodium channel mutationsBenign polymorphismsSingle-channel conductanceMutationsChannel mutationsCell linesSubunitsMyotubesFunctional defectsPeriodic paralysisProcess of inactivationPotassium dependenceNoninactivating componentNew regionsInactivationExpressionPolymorphismSodium currentFamily
1992
Palmitoylation alters protein activity: blockade of G(o) stimulation by GAP‐43.
Sudo Y, Valenzuela D, Beck‐Sickinger A, Fishman MC, Strittmatter SM. Palmitoylation alters protein activity: blockade of G(o) stimulation by GAP‐43. The EMBO Journal 1992, 11: 2095-2102. PMID: 1534749, PMCID: PMC556676, DOI: 10.1002/j.1460-2075.1992.tb05268.x.Peer-Reviewed Original ResearchConceptsHeterotrimeric G proteinsProtein-protein interactionsMembrane associationFatty acylationGAP-43Cysteine residuesHydrophobicity of proteinsN-terminusAddition of palmitateG proteinsPalmitoylationNeuronal proteinsProteinGAP-43 proteinTerminal peptidesActive poolResiduesPeptidesCysteineMembraneActivityActivationPool
1991
An intracellular guanine nucleotide release protein for G0. GAP-43 stimulates isolated alpha subunits by a novel mechanism.
Strittmatter SM, Valenzuela D, Sudo Y, Linder ME, Fishman MC. An intracellular guanine nucleotide release protein for G0. GAP-43 stimulates isolated alpha subunits by a novel mechanism. Journal Of Biological Chemistry 1991, 266: 22465-22471. PMID: 1834672, DOI: 10.1016/s0021-9258(18)54595-6.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBrainCattleGAP-43 ProteinGTP-Binding ProteinsGuanine NucleotidesGuanosine 5'-O-(3-Thiotriphosphate)Guanosine DiphosphateGuanosine TriphosphateKineticsLiposomesMacromolecular SubstancesMembrane GlycoproteinsNADNerve Tissue ProteinsPertussis ToxinPhosphatidylcholinesPhosphoproteinsProtein BindingRatsRecombinant ProteinsVirulence Factors, BordetellaConceptsG proteinsMembrane-associated G proteinsGAP-43Novel mechanismG protein-coupled receptorsG protein-coupled membrane receptorsIntracellular guanine nucleotidesGuanine nucleotidesProtein-coupled receptorsCytosolic faceGTP gamma S bindingRegions of neuronsGTPase activityGDP releaseAlpha s.Alpha subunitAlpha i1Alpha oMembrane receptorsNeuronal proteinsBeta gammaGTP gamma SProteinGamma S bindingGrowth cones
1988
Characterization of a neutral, divalent cation-sensitive endopeptidase: a possible role in neuropeptide processing.
Supattapone S, Strittmatter SM, Fricker LD, Snyder SH. Characterization of a neutral, divalent cation-sensitive endopeptidase: a possible role in neuropeptide processing. Brain Research 1988, 427: 173-81. PMID: 3382941, DOI: 10.1016/0169-328x(88)90063-0.Peer-Reviewed Original ResearchConceptsCorpus striatumBrain regionsTissue distributionBovine adrenal chromaffin granulesAdrenal chromaffin granulesHomogeneous tissue distributionPossible roleNeuropeptide processingDensity gradient fractionationSucrose density gradient fractionationEndopeptidaseLeu-ArgChromaffin granulesHigh levelsBasic amino acidsTrypsin-like endopeptidaseEnzyme activityHippocampusStriatum
1986
Characterization of angiotensin converting enzyme by [3H]captopril binding.
Strittmatter SM, Snyder SH. Characterization of angiotensin converting enzyme by [3H]captopril binding. Molecular Pharmacology 1986, 29: 142-8. PMID: 3005826.Peer-Reviewed Original ResearchConceptsEnzyme-inhibitor interactionsActive site Zn2Dissociation rate constantsPure enzyme preparationCatalysisEnzyme moleculesNM-1 min-1Characterization of angiotensinRate constantsEnzyme preparationSubstrate catalysisSedimentation experimentsGel filtrationIonsMin-1Polypeptide chainBinding sitesIsomerizationMonophasic associationBindingZn2L-leucineMoleculesChloridePurification
1985
Isolation and characterization of an olfactory receptor protein for odorant pyrazines.
Pevsner J, Trifiletti RR, Strittmatter SM, Snyder SH. Isolation and characterization of an olfactory receptor protein for odorant pyrazines. Proceedings Of The National Academy Of Sciences Of The United States Of America 1985, 82: 3050-3054. PMID: 2986147, PMCID: PMC397704, DOI: 10.1073/pnas.82.9.3050.Peer-Reviewed Original Research
1984
A fluorometric assay for angiotensin-converting enzyme activity
Kapiloff M, Strittmatter S, Fricker L, Snyder S. A fluorometric assay for angiotensin-converting enzyme activity. Analytical Biochemistry 1984, 140: 293-302. PMID: 6091493, DOI: 10.1016/0003-2697(84)90167-2.Peer-Reviewed Original Research