SkinPrenatal InjuriesCollagenKeratinocytesSkin Physiological PhenomenaKeratin-17EpidermisHair FollicleFibroblastsDermisSkin AgingCollagen Type ISkin NeoplasmsWound HealingSebaceous GlandsFetusCells, CulturedUltraviolet RaysSkin TransplantationFibrillar CollagensMelanocytesCollagen Type IIICollagen Type IVSkin, ArtificialSkin DiseasesReceptors, CollagenCollagen Type IICell DifferentiationSkin PigmentationCollagen Type VIStem CellsCollagen Type VCysteamineMice, HairlessSunlightCollagen DiseasesSkin TestsExtracellular MatrixDose-Response Relationship, RadiationProcollagenHydroxyprolinePregnancyCollagen Type XVIIISkin AbsorptionCell LineCollagen Type XIRNA, MessengerOxidative StressPhotosensitizing AgentsAdministration, TopicalMelaninsDNA DamageHydroxylysineCell Line, TransformedCartilageGelsMelanomaPyrimidine DimersGene Expression RegulationExtracellular Matrix ProteinsImmunohistochemistryFibril-Associated CollagensBasement MembraneCollagen Type XKeratinsCell SurvivalTendonsRabbitsMice, Inbred C57BLCell ProliferationBase SequenceGene ExpressionApoptosisCell DivisionMicrobial CollagenaseCollagen Type VIICollagen Type XIIFibronectinsDNAPepsin ADose-Response Relationship, DrugConnective TissueCulture Media, ConditionedMicroscopy, FluorescenceFibrosisNon-Fibrillar CollagensProteoglycansCollagenasesHerpesvirus 1, HumanSignal TransductionHydrogen PeroxideCattleCartilage, ArticularLamininModels, BiologicalSkin UlcerCollagen Type VIIIElastinMicroscopy, ElectronMutation