Proliferating Cell Nuclear AntigenCell CycleCell ProliferationCell Cycle ProteinsApoptosisCell DivisionCell Cycle CheckpointsCell Line, TumorCells, CulturedSignal TransductionG1 PhaseMitosisS PhaseCell SurvivalCyclinsCell LineCell DifferentiationPhosphorylationFlow CytometryTumor Suppressor Protein p53Tumor Cells, CulturedCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27RNA, MessengerBlotting, WesternG2 PhaseCaspasesCaspase 3Retinoblastoma ProteinProtein-Serine-Threonine KinasesProto-Oncogene Proteins c-bcl-2Apoptosis Regulatory ProteinsCyclin D1Time FactorsBromodeoxyuridineDNA-Binding ProteinsGene Expression RegulationMolecular Sequence DataDown-RegulationMenstrual CycleTranscription FactorsTransfectionRNA, Small InterferingG0 PhaseImmunohistochemistryG2 Phase Cell Cycle CheckpointsReverse Transcriptase Polymerase Chain ReactionEnzyme ActivationGene Expression Regulation, NeoplasticInhibitor of Apoptosis ProteinsNuclear ProteinsProto-Oncogene ProteinsTumor Suppressor ProteinsG1 Phase Cell Cycle CheckpointsAntineoplastic AgentsMutationMice, Inbred C57BLDNA DamageFibroblastsDose-Response Relationship, DrugIn Situ Nick-End LabelingModels, BiologicalEnzyme InhibitorsCyclin-Dependent Kinase 2Cell NucleusCyclin EDNADNA ReplicationGene ExpressionCDC2 Protein KinaseUp-RegulationBase SequenceDNA FragmentationMice, KnockoutHeLa CellsCyclin ARNA InterferenceTranscription, Geneticbcl-2-Associated X ProteinCyclin-Dependent Kinase 4Lymphocyte ActivationCell MovementAmino Acid SequenceKi-67 AntigenEpithelial CellsInterphaseProto-Oncogene Proteins c-aktProtein BindingStem CellsGenes, cdcMice, TransgenicT-LymphocytesCyclin BProto-Oncogene Proteins c-mycGene Expression ProfilingE2F Transcription FactorsCell Growth ProcessesMice, NudeCDC2-CDC28 KinasesE2F1 Transcription Factor