Cell CycleCell ProliferationCell Cycle ProteinsCell Cycle CheckpointsCell DivisionG1 PhaseApoptosisCells, CulturedCell Line, TumorMitosisS PhaseSignal TransductionCyclinsCell DifferentiationCyclin-Dependent Kinase Inhibitor p27Cell LineCyclin-Dependent Kinase Inhibitor p21PhosphorylationG2 PhaseRetinoblastoma ProteinFlow CytometryRNA, MessengerCyclin D1BromodeoxyuridineMenstrual CycleCell SurvivalTumor Cells, CulturedProtein-Serine-Threonine KinasesTumor Suppressor Protein p53Blotting, WesternMolecular Sequence DataG0 PhaseDNA-Binding ProteinsG2 Phase Cell Cycle CheckpointsGene Expression RegulationTime FactorsG1 Phase Cell Cycle CheckpointsTranscription FactorsCyclin-Dependent Kinase 2Proliferating Cell Nuclear AntigenCyclin ENuclear ProteinsDNA ReplicationImmunohistochemistryTumor Suppressor ProteinsDown-RegulationMutationCDC2 Protein KinaseCyclin AFibroblastsGene Expression Regulation, NeoplasticReverse Transcriptase Polymerase Chain ReactionRNA, Small InterferingTransfectionDNAModels, BiologicalCyclin-Dependent Kinase 4Mice, Inbred C57BLCell NucleusBase SequenceDNA DamageInterphaseLymphocyte ActivationCell MovementKi-67 AntigenTranscription, GeneticGenes, cdcDose-Response Relationship, DrugGene ExpressionStem CellsCyclin BAmino Acid SequenceAntineoplastic AgentsCDC2-CDC28 KinasesProto-Oncogene ProteinsRNA InterferenceHeLa CellsMice, KnockoutE2F Transcription FactorsCyclin DEnzyme InhibitorsUp-RegulationThymidineGene Expression ProfilingProtein Bindingcdc25 PhosphatasesEpithelial CellsCell Growth ProcessesMice, TransgenicE2F1 Transcription FactorT-LymphocytesProto-Oncogene Proteins c-mycEnzyme ActivationCyclin B1PhenotypeCell Transformation, NeoplasticGene Expression Regulation, DevelopmentalEstrous CyclePromoter Regions, GeneticMice, Nude