SkinPrenatal InjuriesKeratinocytesKeratin-17Skin Physiological PhenomenaEpidermisHair FollicleDermisFibroblastsSkin AgingSkin NeoplasmsSebaceous GlandsWound HealingFetusUltraviolet RaysCells, CulturedSkin TransplantationMelanocytesSkin, ArtificialSkin DiseasesSkin PigmentationCell DifferentiationStem CellsCysteamineMice, HairlessSunlightSkin TestsDose-Response Relationship, RadiationSkin AbsorptionPregnancyPhotosensitizing AgentsOxidative StressDNA DamageMelaninsAdministration, TopicalPyrimidine DimersCell LineCell Line, TransformedMelanomaKeratinsCell SurvivalApoptosisHerpesvirus 1, HumanHydrogen PeroxideRNA, MessengerSkin Diseases, BacterialCell ProliferationSkin UlcerDNA RepairCulture Media, ConditionedGene Expression RegulationReactive Oxygen SpeciesMice, Inbred C57BLMicroscopy, FluorescenceCell DivisionDose-Response Relationship, DrugRabbitsImmunohistochemistryBase SequenceGene ExpressionDNASkin AbnormalitiesSignal TransductionModels, BiologicalDNA PrimersMutationStaphylococcal Skin InfectionsDermatitisDermatologic Surgical ProceduresSkin Diseases, ViralSkin CreamSkin Physiological ProcessesCarcinoma, Basal CellErythemaAdministration, CutaneousSkin Diseases, ParasiticPapillomaKeratosis