TranscytosisReceptors, Polymeric ImmunoglobulinBlood-Brain BarrierEndocytosisBiological TransportCell PolaritySecretory ComponentImmunoglobulin AReceptors, FcDogsFetuinsEpithelial CellsLow Density Lipoprotein Receptor-Related Protein-2Caco-2 CellsMyelin and Lymphocyte-Associated Proteolipid ProteinsTight JunctionsCaveolaeIntestinal MucosaCell LineImmunoglobulin A, SecretoryBrefeldin ACaveolin 1EpitheliumAmitroleHorseradish PeroxidaseNocodazoleCapillary PermeabilityProtein TransportMadin Darby Canine Kidney CellsAsialoglycoproteinsEndosomesBlood-Retinal BarrierTransferrinCaveolinsReceptors, TransferrinBlood-Air BarrierTransport VesiclesAlbuminsRicinCells, CulturedCell MembraneExocytosisCommunication BarriersBlood-Testis BarrierEnterocytesPermeabilityCell CompartmentationCyclopentanesThyroglobulinProto-Oncogene Proteins c-yesEndothelium, VascularHeymann Nephritis Antigenic ComplexMucous MembraneGlucosylceramidesDextransCell Membrane PermeabilityPolylysineBotulinum Toxins, Type AImmunity, Mucosalrab GTP-Binding ProteinsPoly IPinocytosisPeyer's PatchesNystatinGold ColloidEndothelial CellsFilipinKidneyGoldHIV Envelope Protein gp160MicrotubulesCapillariesMicroscopy, ConfocalLeupeptinsBile CanaliculiMicroscopy, ElectronLysosomesProtein BindingImmunoglobulin GMembrane ProteinsGalactosylceramidesBileSerum AlbuminModels, BiologicalThyroid Gland