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 ResearchMeSH KeywordsAnimalsApoptosisBrainCells, CulturedFemaleGreen Fluorescent ProteinsLaser TherapyMaleMiceNeuronsPhotonsSpecies SpecificityConceptsCell 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 plasticityOrganismsSpeciesProteinApoptoticATP mediates rapid microglial response to local brain injury in vivo
Davalos D, Grutzendler J, Yang G, Kim JV, Zuo Y, Jung S, Littman DR, Dustin ML, Gan WB. ATP mediates rapid microglial response to local brain injury in vivo. Nature Neuroscience 2005, 8: 752-758. PMID: 15895084, DOI: 10.1038/nn1472.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphateAnimalsApyraseAstrocytesBrainBrain InjuriesCell CommunicationChemotaxisConnexinsGliosisGreen Fluorescent ProteinsMiceMice, TransgenicMicrogliaPhagocytosisPurinergic P2 Receptor AntagonistsReaction TimeReceptors, Purinergic P2Receptors, Purinergic P2Y1Signal TransductionConceptsRapid microglial responseMicroglial processesMicroglial responseBrain injuryG protein-coupled purinergic receptorsLocal brain injuryTraumatic brain injurySite of injuryPrincipal immune cellsPresence of apyraseParenchymal microgliaImmune cellsLocal injectionPurinergic receptorsBaseline motilityIntact brainTwo-photon imagingChannel inhibitorsMouse cortexInjuryExtracellular ATPMicrogliaEnzyme apyraseAstrocytesChemotactic responseAngiophagy Prevents Early Embolus Washout But Recanalizes Microvessels Through Embolus Extravasation
Grutzendler J, Murikinati S, Hiner B, Ji L, Lam CK, Yoo T, Gupta S, Hafler BP, Adelman RA, Yuan P, Rodriguez G. Angiophagy Prevents Early Embolus Washout But Recanalizes Microvessels Through Embolus Extravasation. Science Translational Medicine 2014, 6: 226ra31. PMID: 24598589, DOI: 10.1126/scitranslmed.3006585.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBrainCerebrovascular CirculationCoronary CirculationEmbolismFibrinFibrinolysisFundus OculiGreen Fluorescent ProteinsHemodynamicsHumansKidney TubulesLungMacrophagesMiceMice, TransgenicMicrocirculationMicrogliaMicroscopy, Electron, TransmissionMicrovesselsMonocytesPhagocytosisRetinaRetinal VesselsThrombosisConceptsBlood flow reestablishmentHours of occlusionVascular occlusive disordersDifferent therapeutic strategiesEmbolic occlusionOcclusive disordersVessel recanalizationAlveolar spaceTherapeutic strategiesTherapeutic targetHemodynamic pressureFibrinolytic systemPerivascular spacesEmboliRenal tubulesBlood clotsMicrovascular wallMost human organsOcclusionLungExtravasationKidneyEndotheliumMicrovasculatureWashoutIn vivo imaging of oligodendrocytes with sulforhodamine 101
Hill RA, Grutzendler J. In vivo imaging of oligodendrocytes with sulforhodamine 101. Nature Methods 2014, 11: 1081-1082. PMID: 25357236, PMCID: PMC4539948, DOI: 10.1038/nmeth.3140.Peer-Reviewed Original Research
2012
In Vivo Imaging of Cerebral Microvascular Plasticity from Birth to Death
Harb R, Whiteus C, Freitas C, Grutzendler J. In Vivo Imaging of Cerebral Microvascular Plasticity from Birth to Death. Cerebrovascular And Brain Metabolism Reviews 2012, 33: 146-156. PMID: 23093067, PMCID: PMC3597363, DOI: 10.1038/jcbfm.2012.152.Peer-Reviewed Original ResearchConceptsVascular stabilityYoung adult miceFirst postnatal monthDegenerative neurological disordersVessel formationHypoxia-induced angiogenesisCerebral functionPostnatal monthAdult brainAdult miceIntact brainMicrovascular plasticityNeurological disordersFirst monthMicrovessel formationOlder adultsMetabolic challengesTwo-photon microscopyNew vesselsBaseline turnoverLong-term adaptive responsesIndividual microvesselsMiceVivo patternBrain