0000000000253220

AUTHOR

Ronald Jabs

showing 2 related works from this author

Gray Matter NG2 Cells Display Multiple Ca2+-Signaling Pathways and Highly Motile Processes

2011

NG2 cells, the fourth type of glia in the mammalian CNS, receive synaptic input from neurons. The function of this innervation is unknown yet. Postsynaptic changes in intracellular Ca(2+)-concentration ([Ca(2+)](i)) might be a possible consequence. We employed transgenic mice with fluorescently labeled NG2 cells to address this issue. To identify Ca(2+)-signaling pathways we combined patch-clamp recordings, Ca(2+)-imaging, mRNA-transcript analysis and focal pressure-application of various substances to identified NG2-cells in acute hippocampal slices. We show that activation of voltage-gated Ca(2+)-channels, Ca(2+)-permeable AMPA-receptors, and group I metabotropic glutamate-receptors provo…

Central Nervous SystemAnatomy and PhysiologyVesicular glutamate transporter 1Glycobiologylcsh:MedicineHippocampal formationBiochemistryIon ChannelsTransmembrane Transport ProteinsMice0302 clinical medicinePostsynaptic potentialBiomacromolecule-Ligand Interactionslcsh:ScienceCells CulturedMembrane potential0303 health sciencesMultidisciplinarybiologyReverse Transcriptase Polymerase Chain ReactionDepolarizationNeurochemistryNeurotransmittersCell biologyElectrophysiologymedicine.anatomical_structureNeurologyNeurogliaMedicineProteoglycansNeurochemicalsGlutamateNeurogliaResearch ArticleNervous System PhysiologySignal TransductionCell PhysiologyMotilityNeuroimagingMice TransgenicNeurological System03 medical and health sciencesNeuropharmacologymedicineAnimalsHumansddc:610Biology030304 developmental biologyEndoplasmic reticulumlcsh:RProteinsGamma-Aminobutyric AcidTransmembrane ProteinsLuminescent ProteinsMicroscopy Electronnervous systemMicroscopy FluorescenceSynapsesVesicular Glutamate Transport Protein 1biology.proteinNervous System Componentslcsh:QCalciumPhysiological Processes030217 neurology & neurosurgeryNeurosciencePLoS ONE
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The NG2 Protein Is Not Required for Glutamatergic Neuron-NG2 Cell Synaptic Signaling.

2014

NG2 glial cells (as from now NG2 cells) are unique in receiving synaptic input from neurons. However, the components regulating formation and maintenance of these neuron–glia synapses remain elusive. The transmembrane protein NG2 has been considered a potential mediator of synapse formation and alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR) clustering, because it contains 2 extracellular Laminin G/Neurexin/Sex Hormone-Binding Globulin domains, which in neurons are crucial for formation of transsynaptic neuroligin– neurexin complexes. NG2 is connected via Glutamate Receptor-Interacting Protein with GluA2/3-containing AMPARs, thereby possibly mediating receptor clus…

0301 basic medicineCognitive NeuroscienceNeurexinSynaptogenesisGlutamic AcidNeuroliginMice TransgenicBiologyNeurotransmissionHippocampusSynaptic Transmission03 medical and health sciencesCellular and Molecular Neuroscience0302 clinical medicinePostsynaptic potentialAnimalsReceptors AMPAAntigensNeuronsMembrane Proteins030104 developmental biologynervous systemSynaptic plasticitySynapsesProteoglycansSynaptic signalingNeurosciencePostsynaptic densityNeuroglia030217 neurology & neurosurgeryCerebral cortex (New York, N.Y. : 1991)
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