Cell AgingCarcinoma, Squamous CellCyclin-Dependent Kinase Inhibitor p16Telomerebeta-GalactosidaseHead and Neck NeoplasmsAging, PrematureCyclin-Dependent Kinase Inhibitor p21Neoplasms, Squamous CellMouth NeoplasmsTumor Suppressor Protein p53TelomeraseBiological ProcessesEsophageal NeoplasmsAgingTelomere ShorteningCell ProliferationCell Line, TumorCells, CulturedFibroblastsDNA DamageApoptosisSignal TransductionRetinoblastoma ProteinOxidative StressSkin NeoplasmsTongue NeoplasmsReactive Oxygen SpeciesLaryngeal NeoplasmsImmunohistochemistryCell CycleEndothelial CellsGene Expression Regulation, NeoplasticOropharyngeal NeoplasmsUp-RegulationDown-RegulationTOR Serine-Threonine KinasesReverse Transcriptase Polymerase Chain ReactionRNA, Small InterferingBlotting, WesternRNA InterferenceCell DivisionTime FactorsPhenotypeCarcinoma, Basal CellUterine Cervical NeoplasmsTumor Markers, BiologicalGene Expression RegulationLung NeoplasmsKeratoacanthomaStem CellsCell LineHistonesp38 Mitogen-Activated Protein KinasesMouth MucosaRNA, MessengerNeoplasm StagingPrognosisDNA-Binding ProteinsPapillomavirus InfectionsCell Cycle ProteinsCell DifferentiationPlant LeavesPapillomaviridaeFlow CytometryTransfectionAdenocarcinomaMice, Inbred C57BLVulvar NeoplasmsPrecancerous ConditionsEndothelium, VascularMice, KnockoutLymphatic MetastasisHypopharyngeal NeoplasmsCell Transformation, NeoplasticDose-Response Relationship, DrugPharyngeal NeoplasmsNeoplasm InvasivenessBiological MarkersAtherosclerosisTonsillar NeoplasmsKeratosisPhosphorylationKeratosis, ActinicPenile NeoplasmsKeratinocytesCisplatinGenes, p53Tumor Suppressor ProteinsCarcinoma, VerrucousEnzyme ActivationPapillomaNeoplasm ProteinsGingival NeoplasmsLip NeoplasmsAnus NeoplasmsLeukoplakia, OralNeck DissectionMice, NudeEsophagus