Cell CycleCell Cycle ProteinsCell Line, TumorCell ProliferationApoptosisCell LineGene ExpressionImmunohistochemistryGene Expression Regulation, NeoplasticRNA, MessengerSignal TransductionCell Cycle CheckpointsUp-RegulationMolecular Sequence DataBlotting, WesternGene Expression RegulationTransfectionReverse Transcriptase Polymerase Chain ReactionBase SequenceMice, TransgenicG1 PhaseDown-RegulationPromoter Regions, GeneticCells, CulturedGene Expression ProfilingCell DivisionMitosisS PhaseProtein BindingCyclinsMembrane ProteinsTumor Markers, BiologicalG2 PhasePhosphorylationTranscription FactorsDNA-Binding ProteinsCell MovementTumor Suppressor Protein p53MutationCyclin-Dependent Kinase Inhibitor p21Protein-Serine-Threonine KinasesCyclin-Dependent Kinase Inhibitor p27Menstrual CycleRetinoblastoma ProteinNuclear ProteinsCyclin D1Tumor Cells, CulturedG2 Phase Cell Cycle CheckpointsAmino Acid SequenceTranscription, GeneticHeLa CellsG0 PhaseRNA, Small InterferingCyclin ECDC2 Protein KinaseFlow CytometryCell NucleusCyclin-Dependent Kinase 2G1 Phase Cell Cycle CheckpointsTumor Suppressor ProteinsCell DifferentiationTime FactorsDNA DamageCyclin ACell SurvivalSaccharomyces cerevisiaeDNA ReplicationModels, BiologicalProto-Oncogene ProteinsCyclin-Dependent Kinase 4RNA InterferenceCyclin BCarrier ProteinsGenes, cdcPhenotypeSaccharomyces cerevisiae ProteinsInterphaseRecombinant Fusion ProteinsCDC2-CDC28 Kinasescdc25 PhosphatasesE2F Transcription FactorsFibroblastsDNAFungal ProteinsE2F1 Transcription FactorCyclin B1Repressor ProteinsDNA PrimersNeoplasm ProteinsAntineoplastic AgentsEnzyme ActivationProtein KinasesProto-Oncogene Proteins c-bcl-2Enzyme InhibitorsEstrous CycleMicrotubule-Associated ProteinsGene Knockdown TechniquesGene Expression Regulation, DevelopmentalCyclin DBreast Neoplasms