Cell Transformation, NeoplasticCarcinogenesisGene Expression Regulation, NeoplasticCell Line, TumorMammary Neoplasms, ExperimentalIntestinal NeoplasmsCell ProliferationMice, TransgenicNeoplasmsCarcinogens9,10-Dimethyl-1,2-benzanthraceneSignal TransductionMammary Neoplasms, AnimalMice, NudeTumor Suppressor Protein p53Genes, APCAdenomaMammary Glands, AnimalApoptosisTumor Suppressor ProteinsGenes, rasMutationSkin NeoplasmsGenes, Tumor Suppressorbeta CateninNeoplasms, ExperimentalMice, KnockoutMice, Inbred C57BLPrecancerous ConditionsColonic NeoplasmsLung NeoplasmsAnticarcinogenic AgentsImmunohistochemistryReverse Transcriptase Polymerase Chain ReactionPapillomaLoss of HeterozygosityProto-Oncogene Proteins c-mycCocarcinogenesisAdenomatous Polyposis Coli ProteinNeoplasm ProteinsNeoplasm TransplantationBreast NeoplasmsNitrosaminesOncogenesCell DivisionProto-Oncogene ProteinsAzoxymethaneGene SilencingGene Expression ProfilingBlotting, WesternAdenocarcinomaNeoplasm InvasivenessTumor Cells, CulturedIntestinal PolypsDNA MethylationRNA, MessengerColorectal NeoplasmsGenes, p53PTEN PhosphohydrolaseRNA, Small InterferingDisease ProgressionMammary Tumor Virus, MouseTranscription FactorsEpithelial CellsCell Growth ProcessesDown-RegulationDNA-Binding ProteinsPromoter Regions, GeneticCell CycleUrethaneDNA, NeoplasmHyperplasiaTransplantation, HeterologousDisease Models, AnimalCyclin D1Chromosomal InstabilityMicroRNAsTransfectionBase SequenceGenomic InstabilityUp-RegulationProtein-Serine-Threonine KinasesGenes, mycRNA InterferenceNuclear ProteinsGene DeletionWnt ProteinsGene Knockdown TechniquesNeovascularization, PathologicNeoplasm MetastasisOligonucleotide Array Sequence AnalysisMolecular Sequence DataPhosphorylationras ProteinsProto-Oncogene Proteins c-aktAdenomatous Polyposis ColiMethylnitrosoureaFibroblastsDNA DamageCell Movement