Cell ProliferationProliferating Cell Nuclear AntigenCell DivisionBromodeoxyuridineCell DifferentiationCell CycleKi-67 AntigenImmunohistochemistryStem CellsCells, CulturedApoptosisThymidineSignal TransductionIntestinal MucosaEpithelial CellsRNA, MessengerCell Line, TumorCell MovementCell SurvivalCell LineBlotting, WesternLymphocyte ActivationPhosphorylationMice, Inbred C57BLReverse Transcriptase Polymerase Chain ReactionTumor Cells, CulturedGene Expression Regulation, NeoplasticRNA, Small InterferingCell Growth ProcessesDown-RegulationGene Expression RegulationFlow CytometryDose-Response Relationship, DrugMice, KnockoutTransfectionCyclin D1T-LymphocytesTime FactorsMice, NudeGene ExpressionUp-RegulationMice, TransgenicFibroblastsTranscription FactorsRNA InterferenceProto-Oncogene Proteins c-aktCell CountMuscle, Smooth, VascularCyclin-Dependent Kinase Inhibitor p27Mice, Inbred BALB CMolecular Sequence DataCell Transformation, NeoplasticEnzyme ActivationHyperplasiaCell Cycle ProteinsDNAGrowth InhibitorsEnzyme InhibitorsExtracellular Signal-Regulated MAP KinasesMyocytes, Smooth MuscleRats, Sprague-DawleyDNA-Binding ProteinsMitogensGene Knockdown TechniquesProto-Oncogene ProteinsProto-Oncogene Proteins c-mycCyclin-Dependent Kinase Inhibitor p21Antineoplastic AgentsGene Expression Regulation, DevelopmentalProtein-Serine-Threonine KinasesBase SequenceMAP Kinase Signaling SystemMitogen-Activated Protein Kinase 3G1 PhaseBreast NeoplasmsPhenotypeDisease Models, AnimalMutationMitogen-Activated Protein Kinase 1Models, BiologicalPlatelet-Derived Growth FactorNuclear ProteinsFibroblast Growth Factor 2Cell AdhesionGrowth SubstancesPhosphatidylinositol 3-KinasesTransforming Growth Factor betaNeovascularization, PathologicInterleukin-2S PhaseTumor Suppressor Protein p53Tumor Suppressor ProteinsRecombinant ProteinsMitogen-Activated Protein KinasesMitosisMitotic IndexGene Expression ProfilingEpidermal Growth FactorCyclinsEndothelial Cells