2019
Pyk2 Signaling through Graf1 and RhoA GTPase Is Required for Amyloid-β Oligomer-Triggered Synapse Loss
Lee S, Salazar SV, Cox TO, Strittmatter SM. Pyk2 Signaling through Graf1 and RhoA GTPase Is Required for Amyloid-β Oligomer-Triggered Synapse Loss. Journal Of Neuroscience 2019, 39: 1910-1929. PMID: 30626696, PMCID: PMC6407289, DOI: 10.1523/jneurosci.2983-18.2018.Peer-Reviewed Original ResearchConceptsDendritic spine lossGenetic variationRhoA GTPaseSynapse lossSpine lossBiochemical basisGTPase-activating proteinsFocal adhesion kinasePyk2 functionPyk2 tyrosine kinasePostsynaptic sitesTyrosine kinase Pyk2Disease riskKinase-dependent mechanismOverexpression of Pyk2Dendritic spine densityAdhesion kinaseTransgenic mouse modelBiochemical isolationPyk2 kinaseAlzheimer's disease riskDendritic spine stabilityKinase Pyk2Late-onset Alzheimer's disease (LOAD) riskActin control
2016
Early Activation of Experience-Independent Dendritic Spine Turnover in a Mouse Model of Alzheimer's Disease.
Heiss JK, Barrett J, Yu Z, Haas LT, Kostylev MA, Strittmatter SM. Early Activation of Experience-Independent Dendritic Spine Turnover in a Mouse Model of Alzheimer's Disease. Cerebral Cortex 2016, 27: 3660-3674. PMID: 27365298, PMCID: PMC6059166, DOI: 10.1093/cercor/bhw188.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAlzheimer DiseaseAmyloid beta-Protein PrecursorAnalysis of VarianceAnimalsCerebral CortexDendritic SpinesDisease Models, AnimalGene Expression ProfilingGreen Fluorescent ProteinsHippocampusHumansImaging, Three-DimensionalImmunoprecipitationMiceMice, Inbred C57BLMice, TransgenicMutationNeuroimagingPlaque, AmyloidPresenilin-1Prion ProteinsProto-Oncogene Proteins c-fosSensory DeprivationTime FactorsVibrissaeConceptsAPP/PS1 miceDendritic spine turnoverSpine turnoverAlzheimer's diseasePS1 miceAged APP/PS1 miceYoung APP/PS1 miceAPP/PS1 mouse brainSoluble Aβ oligomersLipid-metabolizing genesAPPswe/Synaptic lossCerebral cortexSynapse densityAβ plaquesSynaptic dysregulationLack responsivenessMouse modelDendritic spinesPersistent spinesSynapse turnoverPlaque formationMouse brainYounger ageCellular prion protein
2013
Anatomical Plasticity of Adult Brain Is Titrated by Nogo Receptor 1
Akbik FV, Bhagat SM, Patel PR, Cafferty WB, Strittmatter SM. Anatomical Plasticity of Adult Brain Is Titrated by Nogo Receptor 1. Neuron 2013, 77: 859-866. PMID: 23473316, PMCID: PMC3594793, DOI: 10.1016/j.neuron.2012.12.027.Peer-Reviewed Original ResearchConceptsNgr1-/- miceNogo receptor 1Somatosensory cortexReceptor 1Adult cerebral cortexDendritic spine turnoverDendritic spine dynamicsAnatomical plasticityCerebral cortexControl miceSpine turnoverAxonal varicositiesWhisker removalAdult brainDendritic spinesSpine dynamicsNull miceAge 26Synaptic turnoverAnatomical connectivityConditional deletionMiceLower set pointNgR1Cortex
2012
Alzheimer amyloid-β oligomer bound to postsynaptic prion protein activates Fyn to impair neurons
Um JW, Nygaard HB, Heiss JK, Kostylev MA, Stagi M, Vortmeyer A, Wisniewski T, Gunther EC, Strittmatter SM. Alzheimer amyloid-β oligomer bound to postsynaptic prion protein activates Fyn to impair neurons. Nature Neuroscience 2012, 15: 1227-1235. PMID: 22820466, PMCID: PMC3431439, DOI: 10.1038/nn.3178.Peer-Reviewed Original ResearchMeSH KeywordsAlzheimer DiseaseAmyloid beta-PeptidesAnimalsBlotting, WesternCalcium SignalingCell LineDendritic SpinesElectroencephalographyEnzyme ActivationHumansMiceMice, Inbred C57BLMice, KnockoutMice, TransgenicNeuronsPhosphorylationProtein BindingProto-Oncogene Proteins c-fynPrPC ProteinsRatsReceptors, N-Methyl-D-AspartateSeizuresSynapses