2013
Galanin‐induced decreases in nucleus accumbens/striatum excitatory postsynaptic potentials and morphine conditioned place preference require both galanin receptor 1 and galanin receptor 2
Einstein EB, Asaka Y, Yeckel MF, Higley MJ, Picciotto MR. Galanin‐induced decreases in nucleus accumbens/striatum excitatory postsynaptic potentials and morphine conditioned place preference require both galanin receptor 1 and galanin receptor 2. European Journal Of Neuroscience 2013, 37: 1541-1549. PMID: 23387435, PMCID: PMC3648588, DOI: 10.1111/ejn.12151.Peer-Reviewed Original ResearchConceptsExcitatory postsynaptic potentialsAbility of galaninSame receptor subtypeReceptor subtypesKnockout miceMorphine CPPPostsynaptic potentialsPlace preferenceAmplitude of EPSPsGalanin receptor 1Galanin receptor subtypesGalanin receptor 2Striatal brain slicesWild-type miceWhole-cell recordingsPotential cellular mechanismsNeuropeptide galaninEPSP amplitudeOpiate rewardBrain slicesNucleus accumbensDorsal striatumExcitatory signalingGalaninReceptor 2
2012
The Synaptic Adhesion Molecule SynCAM 1 Contributes to Cocaine Effects on Synapse Structure and Psychostimulant Behavior
Giza JI, Jung Y, Jeffrey RA, Neugebauer NM, Picciotto MR, Biederer T. The Synaptic Adhesion Molecule SynCAM 1 Contributes to Cocaine Effects on Synapse Structure and Psychostimulant Behavior. Neuropsychopharmacology 2012, 38: 628-638. PMID: 23169347, PMCID: PMC3572459, DOI: 10.1038/npp.2012.226.Peer-Reviewed Original ResearchConceptsNucleus accumbensDrugs of abuseSynCAM 1Cocaine effectsSynapse structureMushroom-type spinesExcitatory synapse numberMedium spiny neuronsAddiction-related behaviorsKO miceSpiny neuronsStubby spinesSynapse numberAdhesion molecule proteinsExcitatory synapsesCocaine administrationTrans-synaptic interactionsKnockout micePsychostimulant effectsNAc synapsesStructural remodelingTherapeutic interventionsSynaptic cleftPsychostimulant cocaineSynapse development
2011
Striatal‐enriched protein tyrosine phosphatase (STEP) knockout mice have enhanced hippocampal memory
Venkitaramani DV, Moura PJ, Picciotto MR, Lombroso PJ. Striatal‐enriched protein tyrosine phosphatase (STEP) knockout mice have enhanced hippocampal memory. European Journal Of Neuroscience 2011, 33: 2288-2298. PMID: 21501258, PMCID: PMC3118976, DOI: 10.1111/j.1460-9568.2011.07687.x.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBehavior, AnimalFocal Adhesion Kinase 2HippocampusMemoryMiceMice, Inbred C57BLMice, KnockoutMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3PhosphorylationProtein Tyrosine Phosphatases, Non-ReceptorReceptors, AMPAReceptors, N-Methyl-D-AspartateSynaptic TransmissionConceptsStriatal-enriched protein tyrosine phosphataseSTEP KO miceProtein tyrosine phosphataseBrain-specific phosphataseProline-rich tyrosine kinaseEffect of deletionN-methyl-D-aspartate receptorsERK1/2 substratesNR1/NR2B N‐Methyl‐d‐Aspartate ReceptorsPotential molecular mechanismsTyrosine phosphataseSignaling proteinsTyrosine phosphorylationDownstream effectorsKinase 1/2Molecular mechanismsTyrosine kinaseFunctional importanceKnockout micePhosphorylationSTEP knockout miceSynaptic strengtheningIsoxazole propionic acid (AMPA) receptorsSynaptosomal expressionRegulation
2010
Locomotion and Self-Administration Induced by Cocaine in 129/OlaHsd Mice Lacking Galanin
Brabant C, Kuschpel AS, Picciotto MR. Locomotion and Self-Administration Induced by Cocaine in 129/OlaHsd Mice Lacking Galanin. Behavioral Neuroscience 2010, 124: 828-838. PMID: 21038934, PMCID: PMC3058554, DOI: 10.1037/a0021221.Peer-Reviewed Original ResearchConceptsGal KO miceCocaine-induced hyperactivityGalanin receptor agonistCocaine-induced hyperlocomotionSpontaneous motor activityGalanin knockout miceEffects of cocaineDrug takersDoses of cocaineDrugs of abuseSelf-administer cocaineGalanin systemReceptor agonistLocomotor effectsKnockout miceGalaninIntravenous cocaineMotor activityFixed ratio scheduleSelf-AdministrationGenetic deletionMiceCocaineDifferent schedulesRatio scheduleModulation of ethanol consumption by genetic and pharmacological manipulation of nicotinic acetylcholine receptors in mice
Kamens HM, Andersen J, Picciotto MR. Modulation of ethanol consumption by genetic and pharmacological manipulation of nicotinic acetylcholine receptors in mice. Psychopharmacology 2010, 208: 613-626. PMID: 20072781, PMCID: PMC2901400, DOI: 10.1007/s00213-009-1759-1.Peer-Reviewed Original ResearchConceptsEffects of vareniclineEthanol consumptionNicotinic acetylcholine receptorsEthanol intakeAcetylcholine receptorsPharmacological manipulationΒ2 subunitRole of nAChRsTwo-bottle choice paradigmWild-type micePartial agonist vareniclineSubunit knockout miceMesolimbic dopamine systemNicotinic controlVarenicline doseAlcohol drinkingAgonist vareniclineKnockout miceDopamine systemNicotine responseChallenge studiesVareniclineNAChRsReceptor subunitsMice
2008
Role of β2-containing nicotinic acetylcholine receptors in auditory event-related potentials
Rudnick ND, Koehler C, Picciotto MR, Siegel SJ. Role of β2-containing nicotinic acetylcholine receptors in auditory event-related potentials. Psychopharmacology 2008, 202: 745-751. PMID: 18931833, DOI: 10.1007/s00213-008-1358-6.Peer-Reviewed Original ResearchConceptsAuditory event-related potentialsEffects of nicotineWild-type miceN40 amplitudeNicotine effectsSpecific nicotinic acetylcholine receptor subtypesNicotinic acetylcholine receptor subtypesΒ2-containing receptorsAcetylcholine receptor subtypesEvent-related potentialsSensory processingΒ2 knockout miceSchizophrenic individualsNicotinic acetylcholine receptorsModulates sensory processingAuditory ERP responsesNicotine administrationReceptor subtypesCA3 regionKnockout miceTherapeutic targetClick stimuliN40 componentStereotaxic implantationAcetylcholine receptorsKnockout of STriatal enriched protein tyrosine phosphatase in mice results in increased ERK1/2 phosphorylation
Venkitaramani DV, Paul S, Zhang Y, Kurup P, Ding L, Tressler L, Allen M, Sacca R, Picciotto MR, Lombroso PJ. Knockout of STriatal enriched protein tyrosine phosphatase in mice results in increased ERK1/2 phosphorylation. Synapse 2008, 63: 69-81. PMID: 18932218, PMCID: PMC2706508, DOI: 10.1002/syn.20608.Peer-Reviewed Original ResearchConceptsSTEP knockout miceStriatal enriched protein tyrosine phosphataseKnockout miceWild-type miceERK1/2 activityHomozygous knockout miceBrain-specific proteinsExtracellular signal-regulated kinase1/2Wild-type controlsCA2 regionKO miceSTEP protein levelsLateral nucleusCytoarchitectural abnormalitiesSynaptic stimulationCultured neuronsSynaptic plasticityMice resultsHeterozygous miceMiceERK1/2 phosphorylationProtein tyrosine phosphataseProtein levelsEffects of the H3 receptor inverse agonist thioperamide on cocaine-induced locomotion in mice: role of the histaminergic system and potential pharmacokinetic interactions
Brabant C, Alleva L, Grisar T, Quertemont E, Lakaye B, Ohtsu H, Lin JS, Jatlow P, Picciotto MR, Tirelli E. Effects of the H3 receptor inverse agonist thioperamide on cocaine-induced locomotion in mice: role of the histaminergic system and potential pharmacokinetic interactions. Psychopharmacology 2008, 202: 673-687. PMID: 18843481, DOI: 10.1007/s00213-008-1345-y.Peer-Reviewed Original ResearchConceptsEffects of thioperamideCocaine-induced hyperlocomotionCocaine-induced locomotionLocomotor effectsHistaminergic systemKnockout micePotential drug-drug interactionsContribution of histamineNon-histaminergic neuronsPlasma cocaine concentrationsPotential pharmacokinetic interactionsCocaine-induced hyperactivityCocaine plasma concentrationsDrug-drug interactionsReceptor inverse agonistInverse agonist thioperamideSelective H3 agonistH3 receptor inverse agonistConclusionsThe present resultsH3 autoreceptorsPharmacokinetic interactionsIntraperitoneal injectionAgonist AHistamine releasePharmacokinetic effects
2007
Galanin Protects Against Behavioral and Neurochemical Correlates of Opiate Reward
Hawes JJ, Brunzell DH, Narasimhaiah R, Langel Ű, Wynick D, Picciotto MR. Galanin Protects Against Behavioral and Neurochemical Correlates of Opiate Reward. Neuropsychopharmacology 2007, 33: 1864-1873. PMID: 17957220, PMCID: PMC2504505, DOI: 10.1038/sj.npp.1301579.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBehavior, AnimalBlotting, WesternBrain ChemistryConditioning, OperantCyclic AMP Response Element-Binding ProteinDose-Response Relationship, DrugExtracellular Signal-Regulated MAP KinasesGalaninGenotypeMiceMice, KnockoutMorphineMorphine DependenceMotor ActivityNarcoticsRewardSignal TransductionConceptsGKO miceMorphine place preferenceOpiate rewardGalanin agonistsMorphine administrationPlace preferenceGalanin knockout miceSingle systemic injectionEndogenous negative regulatorDrugs of abuseAcute administrationNeurochemical effectsNeuropeptide galaninPeripheral injectionWithdrawal signsLocomotor activationSystemic injectionNeurochemical correlatesNucleus accumbensGalaninKnockout miceTherapeutic targetBrain areasDrug reinforcementGalnon
2006
Cocaine self-administration and locomotor sensitization are not altered in CART knockout mice
Steiner RC, Hsiung HM, Picciotto MR. Cocaine self-administration and locomotor sensitization are not altered in CART knockout mice. Behavioural Brain Research 2006, 171: 56-62. PMID: 16621045, DOI: 10.1016/j.bbr.2006.03.022.Peer-Reviewed Original ResearchConceptsKnockout miceLocomotor sensitizationCocaine-induced locomotor sensitizationAmphetamine-regulated transcriptEffects of psychostimulantsRange of dosesAcute cocaineBone resorptionAmphetamine injectionsNucleus accumbensIntravenous cocaineIntact animalsMiceCocaineSchedule of reinforcementInsulin regulationCART geneSensitizationWild-type siblingsPhysiological functionsRegulatory roleStriatumAccumbensPsychostimulantsRats
2005
GalR1, but not GalR2 or GalR3, levels are regulated by galanin signaling in the locus coeruleus through a cyclic AMP‐dependent mechanism
Hawes JJ, Brunzell DH, Wynick D, Zachariou V, Picciotto MR. GalR1, but not GalR2 or GalR3, levels are regulated by galanin signaling in the locus coeruleus through a cyclic AMP‐dependent mechanism. Journal Of Neurochemistry 2005, 93: 1168-1176. PMID: 15934937, PMCID: PMC1352153, DOI: 10.1111/j.1471-4159.2005.03105.x.Peer-Reviewed Original ResearchConceptsCAMP-dependent mannerKnockout micePhysiological functionsCREB phosphorylationProtein levelsGALR1 expressionCell linesGalanin knockout miceMRNA levelsCAMP levelsMouse brainCyclic AMP-dependent mechanismGalR3Important rolePhosphorylationGalR1GalR2ProteinNegative feedbackMiceExpressionLevelsNucleusCATHGalanin can attenuate opiate reinforcement and withdrawal
Picciotto MR, Hawes JJ, Brunzell DH, Zachariou V. Galanin can attenuate opiate reinforcement and withdrawal. Neuropeptides 2005, 39: 313-315. PMID: 15944028, DOI: 10.1016/j.npep.2004.12.001.Peer-Reviewed Original ResearchConceptsOpiate reinforcementGalanin receptor agonistAction of opiatesUseful therapeutic agentEndogenous galaninReceptor agonistGalaninKnockout miceBrain areasTransgenic miceBrain regionsBehavioral signsOpiate addictionTherapeutic agentsBody of dataAltered susceptibilityWithdrawalMiceReceptorsAgonistsOpiates
2004
High-affinity nicotinic acetylcholine receptors are required for antidepressant effects of amitriptyline on behavior and hippocampal cell proliferation
Caldarone BJ, Harrist A, Cleary MA, Beech RD, King SL, Picciotto MR. High-affinity nicotinic acetylcholine receptors are required for antidepressant effects of amitriptyline on behavior and hippocampal cell proliferation. Biological Psychiatry 2004, 56: 657-664. PMID: 15522249, DOI: 10.1016/j.biopsych.2004.08.010.Peer-Reviewed Original ResearchMeSH KeywordsAmitriptylineAnalysis of VarianceAnimalsAntidepressive Agents, TricyclicBehavior, AnimalBromodeoxyuridineCell CountCell ProliferationDose-Response Relationship, DrugDrosophila ProteinsDrug InteractionsHelplessness, LearnedHindlimb SuspensionHippocampusImmunohistochemistryMecamylamineMiceMice, Inbred C57BLMice, KnockoutNeuronsNicotinic AntagonistsNortriptylineReceptors, NicotinicSwimmingConceptsHigh-affinity nAChRsHippocampal cell proliferationNicotinic acetylcholine receptorsSwim testAcetylcholine receptorsCell proliferationHigh-affinity nicotinic acetylcholine receptorsNoncompetitive nAChR antagonist mecamylamineAntagonism of nAChRsAntidepressant-induced increasesAntidepressant-like effectsNAChR antagonist mecamylamineWild-type miceInhibition of nAChRsAntidepressants actAntidepressant actionAntidepressant effectsChronic treatmentAntagonist mecamylamineAntidepressant propertiesTricyclic antidepressantsAntidepressant activityTherapeutic effectKnockout miceNoncompetitive antagonistβ2-subunit-containing nicotinic acetylcholine receptors are critical for dopamine-dependent locomotor activation following repeated nicotine administration
King SL, Caldarone BJ, Picciotto MR. β2-subunit-containing nicotinic acetylcholine receptors are critical for dopamine-dependent locomotor activation following repeated nicotine administration. Neuropharmacology 2004, 47: 132-139. PMID: 15464132, DOI: 10.1016/j.neuropharm.2004.06.024.Peer-Reviewed Original ResearchConceptsLocomotor activationNicotine administrationDopamine systemNicotinic acetylcholine receptorsAcetylcholine receptorsHigh-affinity nicotinic acetylcholine receptorsDopamine receptor antagonist pimozideBeta2 subunitRole of beta2Chronic nicotine administrationChronic nicotine exposureMesolimbic dopamine systemChronic nicotineNicotine exposureAntagonist pimozideB6 miceC57BL/6J miceOral administrationDopaminergic activationOngoing activationKnockout miceLocomotor activityMiceAdministrationNicotine
2002
Decreased Synaptic Vesicle Recycling Efficiency and Cognitive Deficits in Amphiphysin 1 Knockout Mice
Di Paolo G, Sankaranarayanan S, Wenk MR, Daniell L, Perucco E, Caldarone BJ, Flavell R, Picciotto MR, Ryan TA, Cremona O, De Camilli P. Decreased Synaptic Vesicle Recycling Efficiency and Cognitive Deficits in Amphiphysin 1 Knockout Mice. Neuron 2002, 33: 789-804. PMID: 11879655, DOI: 10.1016/s0896-6273(02)00601-3.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCerebral CortexClathrinConditioning, ClassicalEndocytosisFluorescent DyesGABA AntagonistsGlutamic AcidHumansMaze LearningMiceMice, KnockoutNerve Tissue ProteinsNeuronsPentylenetetrazoleProtein IsoformsPyridinium CompoundsQuaternary Ammonium CompoundsSurvival RateSynaptic Vesicles