AstrocytesGap JunctionsIntercellular JunctionsTight JunctionsAdherens JunctionsNeuromuscular JunctionGlial Fibrillary Acidic ProteinConnexinsConnexin 43Cells, CulturedNeurogliaZonula Occludens-1 ProteinCell CommunicationOccludinEsophagogastric JunctionNeuronsGliosisTight Junction ProteinsHolliday Junction ResolvasesFreeze FracturingAnimals, NewbornBrainOligodendrogliaCerebral CortexGlutamic AcidRats, Sprague-DawleyImmunohistochemistryExcitatory Amino Acid Transporter 2Membrane ProteinsMicroscopy, ElectronCadherinsMicrogliaAquaporin 4CarbenoxoloneDNA, CruciformMice, Inbred C57BLMolecular Sequence DataClaudin-1Excitatory Amino Acid Transporter 1Coculture TechniquesNerve Tissue ProteinsRNA, MessengerBase SequenceFluorescent Antibody TechniqueSignal TransductionMice, TransgenicCalcium SignalingCalciumHippocampusSpinal CordCell LineRats, WistarMice, KnockoutMicroscopy, ConfocalS100 Calcium Binding Protein beta SubunitEpithelial CellsHeptanolBlotting, WesternGlycyrrhetinic AcidBlood-Brain BarrierCell DifferentiationTime FactorsCentral Nervous SystemDesmosomesZonula Occludens-2 ProteinGene Expression RegulationOptic NerveNeuromuscular Junction DiseasesCell Membrane PermeabilityMicroscopy, FluorescenceSynaptic TransmissionDisease Models, AnimalAmino Acid Transport System X-AGSynapsesElectric ImpedancePermeabilityCell AdhesionPhosphoproteinsMembrane Potentialsalpha CateninAstrocytomaAmino Acid SequenceModels, BiologicalUp-RegulationCytoskeletal ProteinsGreen Fluorescent ProteinsAxonsStem CellsMutationDesmoplakinsDogsCulture Media, ConditionedClaudin-3S100 ProteinsReverse Transcriptase Polymerase Chain ReactionCell MembraneMotor EndplateEpitheliumCell Adhesion MoleculesMyelin Sheath