2024
Inflammatory Response and Defects on Myelin Integrity in the Olfactory System of K18hACE2 Mice Infected with SARS-CoV-2
Martin-Lopez E, Brennan B, Mao T, Spence N, Meller S, Han K, Yahiaoui N, Wang C, Iwasaki A, Greer C. Inflammatory Response and Defects on Myelin Integrity in the Olfactory System of K18hACE2 Mice Infected with SARS-CoV-2. ENeuro 2024, 11: eneuro.0106-24.2024. PMID: 38834299, PMCID: PMC11185043, DOI: 10.1523/eneuro.0106-24.2024.Peer-Reviewed Original ResearchOlfactory bulbOlfactory epitheliumPiriform cortexOlfactory tractOlfactory systemSARS-CoV-2Projection neuronsMyelination defectsOlfactory sensory neuronsLateral olfactory tractLoss of olfactionRespiratory epithelial cellsLamina propria macrophagesSARS-CoV-2 infectionInfected SCDays of infectionIntegrity of myelinOlfactory dysfunctionInfected microgliaSensitive to infectionOlfactory deficitsSensory neuronsSustentacular cellsNasal cavityNeuronal conduction
2014
Segregated labeling of olfactory bulb projection neurons based on their birthdates
Imamura F, Greer CA. Segregated labeling of olfactory bulb projection neurons based on their birthdates. European Journal Of Neuroscience 2014, 41: 147-156. PMID: 25393912, PMCID: PMC4300262, DOI: 10.1111/ejn.12784.Peer-Reviewed Original ResearchConceptsExternal plexiform layerMitral cell layerOlfactory bulb projection neuronsSuperficial external plexiform layerProjection neuronsMitral cellsOlfactory bulbInnervation patternSoma locationOB projection neuronsMain olfactory bulbAccessory olfactory bulbMouse olfactory bulbTiming of neurogenesisSecondary dendritesPlexiform layerCell dendritesBrdU injectionLaminar organizationUtero electroporationNeuronsDistinct subsetsEmbryonic dayCell layerMitralNonsensory target-dependent organization of piriform cortex
Chen CF, Zou DJ, Altomare CG, Xu L, Greer CA, Firestein SJ. Nonsensory target-dependent organization of piriform cortex. Proceedings Of The National Academy Of Sciences Of The United States Of America 2014, 111: 16931-16936. PMID: 25385630, PMCID: PMC4250170, DOI: 10.1073/pnas.1411266111.Peer-Reviewed Original ResearchConceptsPiriform cortexOrbitofrontal cortexMouse piriform cortexOutput neuronsPrimary sensory cortexAssociation fiber systemsFluorescent retrograde tracingLateral orbitofrontal cortexRetrograde tracingEfferent componentsEfferent pathwaysAfferent inputEfferent projectionsOlfactory cortexOlfactory bulbAgranular insulaSensory cortexEfferent circuitsCortexOlfactory learning promotes input-specific synaptic plasticity in adult-born neurons
Lepousez G, Nissant A, Bryant AK, Gheusi G, Greer CA, Lledo PM. Olfactory learning promotes input-specific synaptic plasticity in adult-born neurons. Proceedings Of The National Academy Of Sciences Of The United States Of America 2014, 111: 13984-13989. PMID: 25189772, PMCID: PMC4183341, DOI: 10.1073/pnas.1404991111.Peer-Reviewed Original ResearchConceptsAdult-born granule cellsAdult-born neuronsInput-specific synaptic plasticityOlfactory bulbGranule cellsOlfactory cortexSynaptic plasticityOptogenetic stimulationOlfactory learningSelective optogenetic stimulationOlfactory information processingCircuit remodelingCortical projectionsSpine densityAdult neurogenesisOB neuronsNew neuronsExcitatory inputsInhibitory inputsSynaptic mechanismsDendritic portionsDendritic treeNeuronsFunctional plasticityElectrophysiological analysis
2011
Timing of neurogenesis is a determinant of olfactory circuitry
Imamura F, Ayoub AE, Rakic P, Greer CA. Timing of neurogenesis is a determinant of olfactory circuitry. Nature Neuroscience 2011, 14: 331-337. PMID: 21297629, PMCID: PMC3046046, DOI: 10.1038/nn.2754.Peer-Reviewed Original Research
2009
Dendritic Branching of Olfactory Bulb Mitral and Tufted Cells: Regulation by TrkB
Imamura F, Greer CA. Dendritic Branching of Olfactory Bulb Mitral and Tufted Cells: Regulation by TrkB. PLOS ONE 2009, 4: e6729. PMID: 19707543, PMCID: PMC2727791, DOI: 10.1371/journal.pone.0006729.Peer-Reviewed Original ResearchConceptsMitral/TrkB activationOlfactory bulbApical dendritesDendritic developmentLateral dendriteDendritic branchingExternal plexiform layerReciprocal dendrodendritic synapsesEarly postnatal daysOlfactory bulb mitralTrkB neurotrophin receptorMammalian olfactory bulbSame odor receptorOlfactory sensory neuronsTufted CellsDendrodendritic synapsesTrkB receptorsDendritic differentiationOB neuronsProjection neuronsPlexiform layerNeurotrophin receptorPostnatal daySensory neurons
2007
Synaptic Integration of Adult-Generated Olfactory Bulb Granule Cells: Basal Axodendritic Centrifugal Input Precedes Apical Dendrodendritic Local Circuits
Whitman MC, Greer CA. Synaptic Integration of Adult-Generated Olfactory Bulb Granule Cells: Basal Axodendritic Centrifugal Input Precedes Apical Dendrodendritic Local Circuits. Journal Of Neuroscience 2007, 27: 9951-9961. PMID: 17855609, PMCID: PMC6672649, DOI: 10.1523/jneurosci.1633-07.2007.Peer-Reviewed Original ResearchConceptsExternal plexiform layerGranule cell layerAdult-generated granule cellsGranule cellsOlfactory bulbSynaptic integrationLocal circuitsOlfactory bulb granule cellsNew granule cellsSubventricular zone migrateAdult mammalian olfactory bulbMammalian olfactory bulbElaborate dendritic arborsBasal dendritesPostsynaptic markersAxon collateralsSynaptic markersPlexiform layerPeriglomerular cellsDendritic arborsMitral/Spine increasesDendritic spinesNew interneuronsD postinfection