Proliferating Cell Nuclear AntigenCell ProliferationCell CycleStem CellsHematopoietic Stem CellsCell DifferentiationCell DivisionEmbryonic Stem CellsNeural Stem CellsAdult Stem CellsCells, CulturedCell Cycle ProteinsSignal TransductionStem Cell TransplantationBromodeoxyuridineApoptosisCell LineageMultipotent Stem CellsMesenchymal Stromal CellsPluripotent Stem CellsCell Line, TumorPlanariansCell LineStem Cell NicheHematopoietic Stem Cell TransplantationMice, Inbred C57BLFlow CytometryRegenerationCell SurvivalBone Marrow CellsCell Cycle CheckpointsNeurogenesisGene Expression Regulation, DevelopmentalInduced Pluripotent Stem CellsModels, BiologicalImmunohistochemistryRNA, MessengerHematopoiesisNestinReverse Transcriptase Polymerase Chain ReactionTranscription FactorsRNA InterferenceGene Expression RegulationG1 PhaseNeuronsCell CountBlotting, WesternCell MovementMice, KnockoutColony-Forming Units AssayStem Cell FactorMesenchymal Stem Cell TransplantationTime FactorsRNA, Small InterferingMolecular Sequence DataCell Culture TechniquesMitosisS PhaseIntestinesMice, TransgenicPhosphorylationGene ExpressionMutationNeoplastic Stem CellsPhenotypeJanus KinasesReceptors, NotchNuclear ProteinsEmbryo, MammalianCyclinsbeta CateninWnt ProteinsWnt Signaling PathwayCyclin-Dependent Kinase Inhibitor p27Drosophila ProteinsTumor Cells, CulturedCyclin-Dependent Kinase Inhibitor p21Germ CellsHomeodomain ProteinsCyclin D1DNA-Binding ProteinsDrosophilaDown-RegulationGene Expression Regulation, NeoplasticFibroblastsEnterocytesMeristemRetinoblastoma ProteinTransfectionGene Expression ProfilingProtein-Serine-Threonine KinasesReal-Time Polymerase Chain ReactionTumor Suppressor Protein p53Bone MarrowNerve Tissue ProteinsIntermediate Filament ProteinsEpithelial CellsStem Cell ResearchFetal Stem CellsG2 Phase