Cell CycleTime FactorsCell Cycle ProteinsCell Cycle CheckpointsApoptosisCell ProliferationG1 PhaseCell Line, TumorCell DivisionG2 PhaseS PhaseMitosisG2 Phase Cell Cycle CheckpointsFlow CytometryCyclinsCell LineG0 PhaseCyclin-Dependent Kinase Inhibitor p21Blotting, WesternGene Expression Regulation, NeoplasticSignal TransductionCyclin-Dependent Kinase Inhibitor p27RNA, MessengerG1 Phase Cell Cycle CheckpointsTumor Suppressor Protein p53Tumor Cells, CulturedCells, CulturedRetinoblastoma ProteinCell SurvivalDown-RegulationMolecular Sequence DataImmunohistochemistryAntineoplastic AgentsGene ExpressionReverse Transcriptase Polymerase Chain ReactionTransfectionUp-RegulationMenstrual CycleCyclin D1Gene Expression RegulationGene Expression ProfilingBase SequenceCyclin EPhosphorylationCyclin-Dependent Kinase 2Protein-Serine-Threonine KinasesInterphaseCyclin ADNA DamageCyclin BCyclin-Dependent Kinase 4DNA-Binding ProteinsCyclin B1DNA ReplicationBromodeoxyuridineDNATumor Suppressor ProteinsM Phase Cell Cycle CheckpointsProtein BindingDose-Response Relationship, DrugNuclear ProteinsCDC2 Protein KinaseCell NucleusPromoter Regions, GeneticDrug Screening Assays, AntitumorHeLa CellsMutationRNA, Small InterferingProto-Oncogene Proteins c-bcl-2Transcription FactorsCell DifferentiationGenes, cdcCell MovementModels, BiologicalAntineoplastic Agents, PhytogenicHL-60 CellsCaspase 3MegaloblastsProto-Oncogene ProteinsFibroblastsDNA FragmentationMice, NudeTranscription, GeneticHCT116 CellsHistonesRadiation ToleranceEnzyme InhibitorsMice, TransgenicHT29 CellsCDC2-CDC28 KinasesRNA InterferencePlant ExtractsEstrous Cyclecdc25 PhosphatasesDrug SynergismAmino Acid SequenceGrowth InhibitorsE2F Transcription FactorsInhibitory Concentration 50Caspases