Cell CycleCell Cycle ProteinsCell Line, TumorApoptosisTumor Cells, CulturedCell Cycle CheckpointsCell DivisionCell ProliferationG1 PhaseTumor Suppressor Protein p53MitosisS PhaseSignal TransductionCell SurvivalCyclinsCell LineFlow CytometryCaspasesApoptosis Regulatory ProteinsG2 PhaseTumor Suppressor ProteinsCells, CulturedCaspase 3Cyclin-Dependent Kinase Inhibitor p21Proto-Oncogene Proteins c-bcl-2PhosphorylationAntineoplastic AgentsRNA, MessengerBlotting, WesternRetinoblastoma ProteinTumor Necrosis Factor-alphaMenstrual CycleTime FactorsCyclin-Dependent Kinase Inhibitor p27Protein-Serine-Threonine KinasesMolecular Sequence DataTumor Markers, BiologicalTransfectionDNA DamageInhibitor of Apoptosis ProteinsDNA-Binding ProteinsNeoplasmsGene Expression Regulation, NeoplasticG2 Phase Cell Cycle CheckpointsMutationNeoplasms, ExperimentalTumor BurdenNeoplasm ProteinsDown-RegulationRNA, Small InterferingProto-Oncogene ProteinsG0 PhaseTranscription FactorsReverse Transcriptase Polymerase Chain ReactionMice, NudeHeLa CellsCyclin D1Cell NucleusModels, BiologicalImmunohistochemistryDNA FragmentationBase SequenceEnzyme ActivationIn Situ Nick-End LabelingG1 Phase Cell Cycle CheckpointsCDC2 Protein Kinasebcl-2-Associated X ProteinDose-Response Relationship, DrugGene Expression RegulationNuclear ProteinsCyclin-Dependent Kinase 2Genes, Tumor SuppressorEnzyme InhibitorsMice, Inbred C57BLCell DifferentiationTranscription, GeneticXenograft Model Antitumor AssaysBreast NeoplasmsDNA ReplicationCyclin EAmino Acid SequenceFibroblastsColonic NeoplasmsCyclin AUp-RegulationMice, Inbred BALB CGene ExpressionCell Transformation, NeoplasticDNAInterphaseNeoplasm TransplantationGenes, cdcCyclin BProtein BindingCyclin-Dependent Kinase 4Gene Expression ProfilingAdenocarcinomaNeoplasm MetastasisRNA InterferenceMitochondria