Proliferating Cell Nuclear AntigenCell ProliferationClone CellsCell DivisionCells, CulturedSignal TransductionCell Line, TumorApoptosisCell CycleCell DifferentiationRNA, MessengerCell LineBromodeoxyuridineImmunohistochemistryCell SurvivalKi-67 AntigenCell MovementBlotting, WesternTumor Cells, CulturedPhosphorylationMolecular Sequence DataLymphocyte ActivationMice, Inbred C57BLReverse Transcriptase Polymerase Chain ReactionGene Expression Regulation, NeoplasticGene Expression RegulationBase SequenceTransfectionDown-RegulationCell Growth ProcessesRNA, Small InterferingGene ExpressionFlow CytometryDNAFibroblastsTranscription FactorsT-LymphocytesEpithelial CellsDose-Response Relationship, DrugMice, KnockoutCyclin D1ThymidineTime FactorsStem CellsCell Transformation, NeoplasticMice, TransgenicMice, NudeUp-RegulationAmino Acid SequenceRNA InterferenceDNA-Binding ProteinsHyperplasiaMuscle, Smooth, VascularCell CountCell Cycle ProteinsProto-Oncogene Proteins c-aktProto-Oncogene Proteins c-mycMice, Inbred BALB CCyclin-Dependent Kinase Inhibitor p27Cyclin-Dependent Kinase Inhibitor p21Proto-Oncogene ProteinsMutationEnzyme ActivationPhenotypeEnzyme InhibitorsNuclear ProteinsMitogensTranscription, GeneticG1 PhaseMyocytes, Smooth MuscleProtein-Serine-Threonine KinasesTumor Suppressor Protein p53Growth InhibitorsExtracellular Signal-Regulated MAP KinasesRecombinant ProteinsCloning, MolecularModels, BiologicalAntineoplastic AgentsGene Expression Regulation, DevelopmentalRats, Sprague-DawleyGrowth SubstancesDisease Models, AnimalBreast NeoplasmsGene Knockdown TechniquesMAP Kinase Signaling SystemRetinoblastoma ProteinGene Expression ProfilingInterleukin-2Neoplasm ProteinsPlatelet-Derived Growth FactorCyclinsTumor Suppressor ProteinsTrans-ActivatorsMitogen-Activated Protein KinasesS PhaseTransforming Growth Factor betaPhosphatidylinositol 3-KinasesEpidermal Growth FactorMitotic IndexCell Adhesion