InkCyclin-Dependent Kinase Inhibitor p16Cyclin-Dependent Kinase Inhibitor p15Tumor Suppressor Protein p14ARFCyclin-Dependent Kinase Inhibitor p18Cyclin-Dependent Kinase Inhibitor p19Genes, p16Cell AgingMutationCyclin-Dependent Kinase 4DNA MethylationTumor Suppressor ProteinsChromosomes, Human, Pair 9Cyclin-Dependent KinasesCarrier ProteinsGenes, Tumor SuppressorGene DeletionCyclin-Dependent Kinase 6Cell Cycle ProteinsMolecular Sequence DataRNA, MessengerImmunohistochemistryDNA, NeoplasmRetinoblastoma ProteinBase SequenceTumor Suppressor Protein p53Polymerase Chain ReactionLoss of HeterozygosityCells, CulturedTime FactorsPolymorphism, Single-Stranded ConformationalGene Expression Regulation, NeoplasticGenes, p53Cell CycleCell Transformation, NeoplasticDisease Models, AnimalGene Expression RegulationMice, Inbred C57BLSignal TransductionPhenotypeReverse Transcriptase Polymerase Chain ReactionProto-Oncogene ProteinsPromoter Regions, GeneticCell LineTumor Cells, CulturedCell DivisionCyclin-Dependent Kinase Inhibitor p21DNA Mutational AnalysisMice, TransgenicGenes, rasMice, KnockoutFibroblastsAgingRats, Sprague-DawleyGene SilencingBlotting, WesternGene Expression ProfilingGene ExpressionCell Line, TumorPolycomb Repressive Complex 1Chromosome AberrationsEpigenesis, GeneticCell ProliferationCyclinsApoptosisBrainAmino Acid SequenceGene DosageCpG IslandsDNA-Binding ProteinsOligonucleotide Array Sequence AnalysisRats, WistarNuclear ProteinsPrintingDNA PrimersCyclin-Dependent Kinase Inhibitor p27LiverTranscription FactorsExonsNeoplasm ProteinsCyclin D1Transcription, GeneticDown-RegulationCarcinoma, Squamous CellG1 PhaseGenes, RetinoblastomaInk Blot TestsKineticsProteinsEnzyme InhibitorsCell DifferentiationPrecancerous ConditionsUp-RegulationRepressor ProteinsTattooingDisease ProgressionTumor Markers, BiologicalHomozygotePoint MutationIn Situ Hybridization, Fluorescence