Cell CycleCell Cycle ProteinsG1 PhaseS PhaseApoptosisCell Cycle CheckpointsDisease ProgressionCell DivisionCyclinsMitosisCell ProliferationCell Line, TumorG2 PhaseRetinoblastoma ProteinCyclin-Dependent Kinase Inhibitor p27Cyclin-Dependent Kinase Inhibitor p21Signal TransductionCell LinePhosphorylationProtein-Serine-Threonine KinasesCyclin D1Cyclin-Dependent Kinase 2Tumor Suppressor Protein p53Cells, CulturedCyclin ECyclin-Dependent KinasesDNA-Binding ProteinsFlow CytometryCDC2 Protein KinaseCyclin AMolecular Sequence DataTumor Cells, CulturedDNA DamageCell SurvivalNuclear ProteinsG0 PhaseTranscription FactorsCyclin-Dependent Kinase 4E2F Transcription FactorsCDC2-CDC28 KinasesMutationTumor Suppressor ProteinsCyclin BCell NucleusRNA, MessengerE2F1 Transcription FactorBlotting, WesternG2 Phase Cell Cycle CheckpointsHeLa CellsGene Expression RegulationDNA ReplicationTime FactorsCaspasesFibroblastsGenes, cdcTransfectioncdc25 PhosphatasesBase SequenceDown-RegulationRNA, Small InterferingProto-Oncogene Proteins c-bcl-2Cell DifferentiationCyclin B1Proto-Oncogene ProteinsG1 Phase Cell Cycle CheckpointsCaspase 3Models, BiologicalApoptosis Regulatory ProteinsTranscription, GeneticGene Expression Regulation, NeoplasticDNAAmino Acid SequenceCyclin DInterphaseAntineoplastic AgentsEnzyme ActivationHybrid CellsEnzyme InhibitorsProtein BindingMenstrual CycleNuclear Transfer TechniquesRNA InterferenceCloning, OrganismReverse Transcriptase Polymerase Chain ReactionInhibitor of Apoptosis ProteinsTranscription Factor DP1Carrier ProteinsBromodeoxyuridineProtein KinasesSaccharomyces cerevisiaeProto-Oncogene Proteins c-mycHistonesPromoter Regions, GeneticMicrotubule-Associated ProteinsRetinoblastoma-Binding Protein 1Saccharomyces cerevisiae ProteinsGene ExpressionDNA FragmentationUp-RegulationIn Situ Nick-End Labeling