Cell CycleProliferating Cell Nuclear AntigenCell DivisionCell ProliferationBromodeoxyuridineCell DifferentiationCell Cycle ProteinsStem CellsKi-67 AntigenImmunohistochemistryApoptosisCells, CulturedThymidineIntestinal MucosaCell Cycle CheckpointsEpithelial CellsSignal TransductionRNA, MessengerG1 PhaseS PhaseMitosisCyclinsMenstrual CycleG2 PhaseCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27Retinoblastoma ProteinG2 Phase Cell Cycle CheckpointsG0 PhaseCDC2 Protein KinaseCell Line, TumorG1 Phase Cell Cycle CheckpointsTumor Suppressor Protein p53Cyclin-Dependent Kinase 2Protein-Serine-Threonine KinasesCyclin D1PhosphorylationDNA ReplicationCyclin EGenes, cdcDNA DamageCell LineCyclin AInterphaseDNA-Binding ProteinsCyclin BMolecular Sequence DataFlow CytometryCyclin-Dependent Kinase 4Nuclear ProteinsTumor Suppressor ProteinsCDC2-CDC28 KinasesEstrous Cyclecdc25 PhosphatasesCell NucleusTranscription FactorsMutationTumor Cells, CulturedE2F Transcription FactorsHeLa CellsTime FactorsCyclin B1Saccharomyces cerevisiaeModels, BiologicalGene Expression RegulationTranscription, GeneticCyclin DDNACitric Acid CycleBase SequenceCell SurvivalE2F1 Transcription FactorAmino Acid SequenceSaccharomyces cerevisiae ProteinsBlotting, WesternS Phase Cell Cycle CheckpointsProtein KinasesDown-RegulationProtein BindingCyclin D3Cyclin-Dependent Kinase Inhibitor ProteinsFibroblastsAntineoplastic AgentsFungal ProteinsTransfectionSchizosaccharomycesHistonesM Phase Cell Cycle CheckpointsGene Expression Regulation, NeoplasticMicrotubule-Associated ProteinsProto-Oncogene ProteinsGene Expression ProfilingHydroxyureaRNA, Small InterferingCyclin-Dependent Kinase Inhibitor p16Caulobacter crescentusCyclin-Dependent Kinase 6Promoter Regions, GeneticCyclin D2Transcription Factor DP1