Epithelial CellsThymus GlandEpitheliumThymic Factor, CirculatingThymocytesSelf ToleranceCells, CulturedCell DifferentiationT-LymphocytesCentral ToleranceMice, Inbred C57BLCell LineLymphopoiesisThymomaStromal CellsMice, TransgenicFlow CytometryKeratinsMice, KnockoutThymus HyperplasiaFibroblast Growth Factor 7Organ Culture TechniquesRNA, MessengerLymphotoxin beta ReceptorGene Expression RegulationCell AdhesionMice, Inbred BALB CImmunohistochemistrySignal TransductionAntibodies, MonoclonalThymus NeoplasmsCell CommunicationAntigens, CDTranscription FactorsCell DivisionThymopentinHistocompatibility Antigens Class IIT-Lymphocyte SubsetsAntigens, CD8Thymus HormonesFluorescent Antibody TechniqueReverse Transcriptase Polymerase Chain ReactionInterleukin-7Antigens, SurfaceCoculture TechniquesCellular MicroenvironmentRespiratory MucosaAutoantigensWnt4 ProteinClonal DeletionCytokinesForkhead Transcription FactorsApoptosisFetusCD4-Positive T-LymphocytesIntestinal MucosaImmune ToleranceReceptor Activator of Nuclear Factor-kappa BGene ExpressionBronchiReceptors, Antigen, T-CellAntigens, Differentiation, T-LymphocyteMacrophagesCell SeparationAutoimmunityAntigens, CD4Interleukin-6Interleukin-8PhenotypeCell ProliferationMembrane ProteinsMolecular Sequence DataAntigens, CD14Polyendocrinopathies, AutoimmuneOrgan SpecificityMicroscopy, ElectronMyasthenia GravisDendritic CellsImmunoenzyme TechniquesEpithelium, CornealLymphocyte ActivationMice, Mutant StrainsTumor Necrosis Factor-alphaRegenerationImmunophenotypingLipopolysaccharidesMonocytes, Activated KillerStem CellsRadiation ChimeraBase SequenceEpithelioid CellsMammary Glands, AnimalRecombinant ProteinsHematopoietic Stem CellsCell LineageBacterial AdhesionDNA PrimersCaco-2 CellsCell PolarityLectins, C-Type