2008
Cortical Adenylyl Cyclase 1 Is Required for Thalamocortical Synapse Maturation and Aspects of Layer IV Barrel Development
Iwasato T, Inan M, Kanki H, Erzurumlu RS, Itohara S, Crair MC. Cortical Adenylyl Cyclase 1 Is Required for Thalamocortical Synapse Maturation and Aspects of Layer IV Barrel Development. Journal Of Neuroscience 2008, 28: 5931-5943. PMID: 18524897, PMCID: PMC2733830, DOI: 10.1523/jneurosci.0815-08.2008.Peer-Reviewed Original ResearchConceptsTC synapsesLayer IV barrel neuronsCritical period plasticityPrimary somatosensory cortexFormation of barrelsAdenylyl cyclase 1Knock-out (KO) miceType 1 adenylyl cyclaseDendritic asymmetryBarrel neuronsThalamocortical synapsesActivity-dependent mannerTrigeminal pathwayFormation of cAMPSomatosensory cortexBarrel cortexBarrel developmentSynapse maturationPresynaptic maturationBarrel hollowsTC axonsSubcortical regionsFunctional maturationMutant miceBRL mice
2007
Increased Thalamocortical Synaptic Response and Decreased Layer IV Innervation in GAP-43 Knockout Mice
Albright MJ, Weston MC, Inan M, Rosenmund C, Crair MC. Increased Thalamocortical Synaptic Response and Decreased Layer IV Innervation in GAP-43 Knockout Mice. Journal Of Neurophysiology 2007, 98: 1610-1625. PMID: 17581849, DOI: 10.1152/jn.00219.2007.Peer-Reviewed Original ResearchConceptsExcitatory postsynaptic potentialsField excitatory postsynaptic potentialsGAP-43Thalamocortical synapsesSynaptic responsesCompetitive glutamate receptor antagonistN-methyl-D-aspartate receptorsAcute brain slice preparationBarrel map formationThalamocortical synaptic responsesWild-type littermate controlsGlutamate receptor antagonistsBrain slice preparationGrowth-associated proteinThalamic innervationThalamic neuronsBarrel mapReceptor antagonistIsoxazolepropionate (AMPA) receptorsPostsynaptic potentialsLayer IVSlice preparationBarrel cortexSynaptic transmissionAMPAR function
2006
Barrel Map Development Relies on Protein Kinase A Regulatory Subunit IIβ-Mediated cAMP Signaling
Inan M, Lu HC, Albright MJ, She WC, Crair MC. Barrel Map Development Relies on Protein Kinase A Regulatory Subunit IIβ-Mediated cAMP Signaling. Journal Of Neuroscience 2006, 26: 4338-4349. PMID: 16624954, PMCID: PMC6674004, DOI: 10.1523/jneurosci.3745-05.2006.Peer-Reviewed Original ResearchConceptsBarrel map formationLayer IV neuronsActivity-dependent developmentAMPA receptor functionCAMP/PKA-dependent pathwayLong-term potentiationThalamocortical synapsesThalamocortical afferentsTC synapsesThalamocortical synapseBarrel cortexPKA targetsBarrel patternCortical developmentPKA-dependent pathwayBrain circuitryPostsynaptic processesSynapse formationReceptor functionCAMP-dependent protein kinaseHebbian mechanismsDevelopmental increaseMiceSynapsesActivity-dependent models
2003
Adenylyl cyclase I regulates AMPA receptor trafficking during mouse cortical 'barrel' map development
Lu HC, She WC, Plas DT, Neumann PE, Janz R, Crair MC. Adenylyl cyclase I regulates AMPA receptor trafficking during mouse cortical 'barrel' map development. Nature Neuroscience 2003, 6: 939-947. PMID: 12897788, DOI: 10.1038/nn1106.Peer-Reviewed Original ResearchConceptsLong-term depressionLong-term potentiationAMPA receptor traffickingThalamocortical synapsesBarrelless miceBarrel map formationSynaptic AMPAR traffickingAMPAR subunit GluR1Activity-dependent mechanismsReceptor traffickingAC1 activityFunctional AMPARsSurface GluR1Thalamocortical afferentsMap formationAdenylyl cyclase IBarrel mapSubunit GluR1Cortical map formationAMPAR traffickingProtein kinase A (PKA) activitySynapsesAdenylyl cyclaseMiceImmature state
1997
Silent Synapses during Development of Thalamocortical Inputs
Isaac J, Crair M, Nicoll R, Malenka R. Silent Synapses during Development of Thalamocortical Inputs. Neuron 1997, 18: 269-280. PMID: 9052797, DOI: 10.1016/s0896-6273(00)80267-6.Peer-Reviewed Original ResearchConceptsLong-term potentiationThalamocortical synapsesThalamocortical inputsSilent synapsesFunctional synapsesPostnatal day 8Rat somatosensory cortexActivity-dependent mechanismsActivity-dependent increaseEarly postnatal developmentSomatosensory cortexPostsynaptic activityTopographical projectionDay 8Postnatal developmentSynaptic connectionsSynaptic strengthSynapsesCortexSignificant proportionThalamusEarly developmentPotentiation
1995
A critical period for long-term potentiation at thalamocortical synapses
Crair M, Malenka R. A critical period for long-term potentiation at thalamocortical synapses. Nature 1995, 375: 325-328. PMID: 7753197, DOI: 10.1038/375325a0.Peer-Reviewed Original ResearchConceptsLong-term potentiationThalamocortical synapsesNMDA receptor-mediated synaptic currentsN-methyl-D-aspartate receptor-dependent long-term potentiationReceptor-mediated synaptic currentsCritical periodRat somatosensory cortexActivity-dependent processesSomatosensory cortexThalamic axonsCortical circuitryNormal connectivitySynaptic currentsTopographical projectionSynaptic connectionsWhisker barrelsLoss of susceptibilitySensory perturbationsLTPPotentiationCortexSynapsesNormal developmentCompelling evidenceLikely mechanism