Geniculate BodiesCell CycleCell DifferentiationCell NucleusCell Cycle ProteinsCells, CulturedCell DivisionSignal TransductionTranscription FactorsCell LineCell ProliferationGene Expression Regulation, DevelopmentalStem CellsCell Cycle CheckpointsGene Expression RegulationRNA, MessengerMolecular Sequence DataDNA-Binding ProteinsEmbryonic Stem CellsG1 PhaseCell LineageApoptosisMitosisBase SequenceNuclear ProteinsTranscription, GeneticFlow CytometryCyclinsMice, Inbred C57BLReverse Transcriptase Polymerase Chain ReactionS PhaseImmunohistochemistryTretinoinTime FactorsTumor Cells, CulturedGene ExpressionModels, BiologicalMice, KnockoutCell Line, TumorMutationPhenotypeNeuronsAmino Acid SequenceBlotting, WesternMice, TransgenicTransfectionHomeodomain ProteinsPhosphorylationPromoter Regions, GeneticDown-RegulationGene Expression ProfilingRetinoblastoma ProteinCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27Trans-ActivatorsRepressor ProteinsNucleus AccumbensSex DifferentiationCell SurvivalDNAEmbryo, MammalianG2 PhaseProtein BindingProtein-Serine-Threonine KinasesIn Situ HybridizationActive Transport, Cell NucleusMenstrual CycleUp-RegulationHL-60 CellsG0 PhaseProto-Oncogene ProteinsEpithelial CellsInterphaseDNA PrimersBasic Helix-Loop-Helix Transcription FactorsTumor Suppressor Protein p53RNA, Small InterferingCytoplasmThalamic NucleiBromodeoxyuridineFluorescent Antibody TechniqueHematopoietic Stem CellsTumor Suppressor ProteinsSolitary NucleusHeLa CellsCarrier ProteinsCell Culture TechniquesB-LymphocytesHistonesFibroblastsDNA ReplicationRecombinant Fusion ProteinsMicroscopy, FluorescenceOligonucleotide Array Sequence AnalysisRNA InterferenceDimethyl SulfoxideCyclin D1G2 Phase Cell Cycle CheckpointsMesenchymal Stromal CellsOsteoblasts