Cell CycleCell ProliferationCell Line, TumorCell DivisionCell Cycle ProteinsTumor Cells, CulturedApoptosisCells, CulturedSignal TransductionCell Cycle CheckpointsCell LineCell SurvivalRNA, MessengerCell DifferentiationTumor Suppressor Protein p53G1 PhaseFlow CytometryBlotting, WesternTumor Markers, BiologicalDose-Response Relationship, DrugImmunohistochemistryGene Expression Regulation, NeoplasticTime FactorsMice, NudeReverse Transcriptase Polymerase Chain ReactionPhosphorylationCell MovementNeoplasms, ExperimentalAntineoplastic AgentsTumor Suppressor ProteinsTumor Necrosis Factor-alphaTumor BurdenTransfectionMice, Inbred C57BLNeoplasmsMitosisCyclinsEnzyme InhibitorsRNA, Small InterferingMice, Inbred BALB CS PhaseMolecular Sequence DataXenograft Model Antitumor AssaysNeoplasm ProteinsDown-RegulationCyclin-Dependent Kinase Inhibitor p21Cyclin-Dependent Kinase Inhibitor p27BromodeoxyuridineNeoplasm TransplantationMutationBreast NeoplasmsGene ExpressionNeovascularization, PathologicFibroblastsNeoplasm MetastasisGene Expression RegulationProtein-Serine-Threonine KinasesCell Transformation, NeoplasticDNA-Binding ProteinsRetinoblastoma ProteinTransplantation, HeterologousCell Growth ProcessesAdenocarcinomaCyclin D1Transcription FactorsColonic NeoplasmsBase SequenceKi-67 AntigenUp-RegulationGenes, Tumor SuppressorProliferating Cell Nuclear AntigenBrain NeoplasmsModels, BiologicalDNAMammary Neoplasms, ExperimentalRNA InterferenceProto-Oncogene ProteinsG2 PhaseGene Expression ProfilingAntigens, NeoplasmAntibodies, MonoclonalMice, TransgenicG0 PhaseLymphocyte ActivationEpithelial CellsMice, SCIDLiver NeoplasmsThymidineTranscription, GeneticMice, KnockoutCarcinoma, Ehrlich TumorRecombinant ProteinsPhenotypeT-LymphocytesEnzyme ActivationWilms TumorCell AdhesionDisease Models, AnimalCell NucleusStem Cells