Featured Publications
Targeted two-photon chemical apoptotic ablation of defined cell types in vivo
Hill RA, Damisah EC, Chen F, Kwan AC, Grutzendler J. Targeted two-photon chemical apoptotic ablation of defined cell types in vivo. Nature Communications 2017, 8: 15837. PMID: 28621306, PMCID: PMC5501159, DOI: 10.1038/ncomms15837.Peer-Reviewed Original ResearchConceptsCell deathNucleic acid-binding dyeVivo functional consequencesCell type differencesPattern of apoptosisDose-dependent apoptosisComplex organismsMitochondrial fissionFluorescent proteinUnderstanding of mechanismsCell typesCell clearanceFunctional consequencesIndividual cellsDiverse organsDistinct populationsApoptosisMouse brainZebrafishMajor bottleneckNeural plasticityOrganismsSpeciesProteinApoptoticA fluoro-Nissl dye identifies pericytes as distinct vascular mural cells during in vivo brain imaging
Damisah EC, Hill RA, Tong L, Murray KN, Grutzendler J. A fluoro-Nissl dye identifies pericytes as distinct vascular mural cells during in vivo brain imaging. Nature Neuroscience 2017, 20: 1023-1032. PMID: 28504673, PMCID: PMC5550770, DOI: 10.1038/nn.4564.Peer-Reviewed Original ResearchImaging and optogenetic modulation of vascular mural cells in the live brain
Tong L, Hill RA, Damisah EC, Murray KN, Yuan P, Bordey A, Grutzendler J. Imaging and optogenetic modulation of vascular mural cells in the live brain. Nature Protocols 2020, 16: 472-496. PMID: 33299155, DOI: 10.1038/s41596-020-00425-w.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsRegional cerebral blood flowMural cellsBlood-brain barrier maintenanceCerebral ischemia mouse modelAge-related neurodegenerative diseasesCerebral blood flowSmooth muscle cell physiologyBrain blood vesselsIschemia mouse modelVascular mural cellsBrain microvesselsHigh-resolution intravital imagingVascular disordersMouse modelBlood flowMuscle cell physiologyTransgenic miceCalcium transientsAlzheimer's diseaseCalcium imagingCell subtypesBarrier maintenanceNeurodegenerative diseasesTwo-photon optogeneticsBlood vesselsMicroglia constitute a barrier that prevents neurotoxic protofibrillar Aβ42 hotspots around plaques
Condello C, Yuan P, Schain A, Grutzendler J. Microglia constitute a barrier that prevents neurotoxic protofibrillar Aβ42 hotspots around plaques. Nature Communications 2015, 6: 6176. PMID: 25630253, PMCID: PMC4311408, DOI: 10.1038/ncomms7176.Peer-Reviewed Original Research
2021
Intravital Imaging of Neocortical Heterotopia Reveals Aberrant Axonal Pathfinding and Myelination around Ectopic Neurons
Li AM, Hill RA, Grutzendler J. Intravital Imaging of Neocortical Heterotopia Reveals Aberrant Axonal Pathfinding and Myelination around Ectopic Neurons. Cerebral Cortex 2021, 31: 4340-4356. PMID: 33877363, PMCID: PMC8328209, DOI: 10.1093/cercor/bhab090.Peer-Reviewed Original ResearchConceptsNeuronal clustersEarly postnatal developmentVivo calcium imagingEctopic neuronal clustersAxonal patternNeocortical heterotopiaHeterotopic neuronsCortical heterotopiaHeterotopia formationEctopic neuronsAnimal modelsTractable animal modelPostnatal developmentCalcium imagingBrain regionsInducible modelIntravital imagingNeuronsAxonal pathfindingAberrant patternsHeterotopiaMyelinationAxon guidanceCognitive disabilitiesLive mice
2018
Activation of pial and dural macrophages and dendritic cells by cortical spreading depression
Schain AJ, Melo‐Carrillo A, Borsook D, Grutzendler J, Strassman AM, Burstein R. Activation of pial and dural macrophages and dendritic cells by cortical spreading depression. Annals Of Neurology 2018, 83: 508-521. PMID: 29394508, PMCID: PMC5965700, DOI: 10.1002/ana.25169.Peer-Reviewed Original ResearchConceptsBlood-brain barrierDendritic cellsDural macrophagesImmune cellsAnatomical relationshipMigratory dendritic cellsAnn NeurolTRPV1 axonsMeningeal nociceptorsHead painMigraine attacksNociceptor activationSubarachnoid spaceMeningeal macrophagesMacrophagesCortical eventsAxonsActivationAuraDuraDepressionMinutesCellsCellular eventsCSD
2017
Oxalate-curcumin–based probe for micro- and macroimaging of reactive oxygen species in Alzheimer’s disease
Yang J, Zhang X, Yuan P, Yang J, Xu Y, Grutzendler J, Shao Y, Moore A, Ran C. Oxalate-curcumin–based probe for micro- and macroimaging of reactive oxygen species in Alzheimer’s disease. Proceedings Of The National Academy Of Sciences Of The United States Of America 2017, 114: 12384-12389. PMID: 29109280, PMCID: PMC5703278, DOI: 10.1073/pnas.1706248114.Peer-Reviewed Original ResearchConceptsCerebral amyloid angiopathyAD brainAlzheimer's diseaseTwo-photon imagingNIRF imagingAmyloid-beta plaquesROS levelsIrreversible neurodegenerative disorderAD pathological conditionsAge-related increaseReactive oxygen species levelsAmyloid angiopathyBeta plaquesOxygen species levelsDrug treatmentHealthy brainNeurodegenerative disordersDiseaseOxidative stressHigh ROS levelsPathological conditionsReactive oxygen speciesBrainFluorescence imaging probeOxygen species
2016
Increased Nanoparticle Delivery to Brain Tumors by Autocatalytic Priming for Improved Treatment and Imaging
Han L, Kong DK, Zheng MQ, Murikinati S, Ma C, Yuan P, Li L, Tian D, Cai Q, Ye C, Holden D, Park JH, Gao X, Thomas JL, Grutzendler J, Carson RE, Huang Y, Piepmeier JM, Zhou J. Increased Nanoparticle Delivery to Brain Tumors by Autocatalytic Priming for Improved Treatment and Imaging. ACS Nano 2016, 10: 4209-4218. PMID: 26967254, PMCID: PMC5257033, DOI: 10.1021/acsnano.5b07573.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntineoplastic AgentsBiological TransportBlood-Brain BarrierBrain NeoplasmsCell Line, TumorDecanoic AcidsDrug Delivery SystemsEthanolaminesFemaleGenetic TherapyHeterograftsHumansMatrix Metalloproteinase 2MiceMice, Inbred C57BLNanoparticlesOptical ImagingPaclitaxelPermeabilityPolymersPurinesPyrazolesScorpion VenomsTranscytosisTumor MicroenvironmentConceptsBlood-brain barrierLow delivery efficiencyTransport of nanoparticlesCancer gene therapyNanoparticle deliveryMore nanoparticlesBrain tumorsNanoparticlesDelivery efficiencyGene therapySystemic deliveryNPsBrain malignanciesBBB modulatorsPharmacological agentsBrain cancerBrain regionsTumorsDeliveryBrainImproved treatmentInadequate amountsPositive feedback loopChemotherapyMalignancy
2015
Genetic variants associated with autoimmunity drive NFκB signaling and responses to inflammatory stimuli
Housley WJ, Fernandez SD, Vera K, Murikinati SR, Grutzendler J, Cuerdon N, Glick L, De Jager PL, Mitrovic M, Cotsapas C, Hafler DA. Genetic variants associated with autoimmunity drive NFκB signaling and responses to inflammatory stimuli. Science Translational Medicine 2015, 7: 291ra93. PMID: 26062845, PMCID: PMC4574294, DOI: 10.1126/scitranslmed.aaa9223.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAllelesAutoimmunityCase-Control StudiesCD4-Positive T-LymphocytesCell NucleusCytokinesFemaleGenetic Predisposition to DiseaseHumansInflammationMaleMiddle AgedMultiple SclerosisNF-kappa BPolymorphism, Single NucleotideProtein TransportReceptors, Tumor Necrosis Factor, Type IRisk FactorsSex CharacteristicsSignal TransductionTime FactorsTumor Necrosis Factor-alphaConceptsB-cell leukemia 3Multiple sclerosisNegative regulatorInflammatory stimuliGenetic variantsWide association studyDisease susceptibility variantsNaïve CD4 T cellsRapid genetic screeningCD4 T cellsActivation of p65Transcription factor nuclear factor κBExpression of NFκBNuclear factor κBApoptosis 1Cellular inhibitorGG risk genotypeDegradation of inhibitorCentral regulatorAssociation studiesCytokine blockadeUlcerative colitisAutoimmune diseasesTumor necrosisSusceptibility variants
2014
Modulation of oligodendrocyte generation during a critical temporal window after NG2 cell division
Hill RA, Patel KD, Goncalves CM, Grutzendler J, Nishiyama A. Modulation of oligodendrocyte generation during a critical temporal window after NG2 cell division. Nature Neuroscience 2014, 17: 1518-1527. PMID: 25262495, PMCID: PMC4275302, DOI: 10.1038/nn.3815.Peer-Reviewed Original Research
2013
Perturbed neural activity disrupts cerebral angiogenesis during a postnatal critical period
Whiteus C, Freitas C, Grutzendler J. Perturbed neural activity disrupts cerebral angiogenesis during a postnatal critical period. Nature 2013, 505: 407-411. PMID: 24305053, PMCID: PMC3947100, DOI: 10.1038/nature12821.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnimals, NewbornBlood VesselsCapillariesCell ProliferationCerebral CortexCerebrovascular CirculationDendritic SpinesEndothelial CellsFemaleHypoxia, BrainInterneuronsMaleMiceMicrocirculationNeovascularization, PathologicNeovascularization, PhysiologicNeurogliaNeuronsNG-Nitroarginine Methyl EsterNitric OxideNitric Oxide SynthaseOxygenSignal TransductionTime FactorsVibrissae
2004
Age‐associated synapse elimination in mouse parasympathetic ganglia
Coggan JS, Grutzendler J, Bishop DL, Cook MR, Gan W, Heym J, Lichtman JW. Age‐associated synapse elimination in mouse parasympathetic ganglia. Developmental Neurobiology 2004, 60: 214-226. PMID: 15266652, DOI: 10.1002/neu.20022.Peer-Reviewed Original ResearchConceptsSynapse eliminationExcitatory postsynaptic potential amplitudeSubmandibular ganglion neuronsPostsynaptic potential amplitudeNumber of synapsesMonths of ageMammalian nervous systemAge-related changesMiniature EPSPsSMG neuronsSynapse efficacyParasympathetic gangliaGanglion neuronsEPSP amplitudeSynaptic contactsSynaptic transmissionSynaptic inputsAged animalsPotential amplitudeNervous systemSynaptic boutonsAxonal processesNeuronsOld animalsPostsynaptic membrane