TissuesCells, CulturedCulture TechniquesOrgan Culture TechniquesCell Culture TechniquesMice, Inbred C57BLReverse Transcriptase Polymerase Chain ReactionCell LineMice, TransgenicCulture MediaMice, KnockoutRNA, MessengerImmunohistochemistryRats, Sprague-DawleyTime FactorsEpitheliumBrainCell DifferentiationSkinFibroblastsCell AdhesionCell SurvivalSignal TransductionCell DivisionCell ProliferationApoptosisDisease Models, AnimalGene ExpressionNeuronsGene Expression RegulationCattleLiverBlotting, WesternCell Line, TumorMolecular Sequence Data