SkinKeratinocytesStem CellsUltraviolet RaysMelanocytesFibroblastsEpidermisCells, CulturedSkin NeoplasmsSkin AgingDose-Response Relationship, RadiationEmbryo, MammalianEmbryonic Stem CellsStem Cell TransplantationHematopoietic Stem CellsAdult Stem CellsEmbryo, NonmammalianSkin Physiological PhenomenaPluripotent Stem CellsCell DifferentiationChick EmbryoHematopoietic Stem Cell TransplantationStem Cell NicheNeural Stem CellsInduced Pluripotent Stem CellsSkin, ArtificialMultipotent Stem CellsMesenchymal Stem Cell TransplantationDermisStem Cell FactorSkin DiseasesMesenchymal Stromal CellsSkin PigmentationEmbryo ImplantationCell LineageBlastocystCell ProliferationGene Expression Regulation, DevelopmentalEmbryonic DevelopmentStem Cell ResearchCell LineSkin AbsorptionPlant StemsFetal Stem CellsSignal TransductionMice, Inbred C57BLSunlightRNA, MessengerResearch PersonnelWound HealingCell SurvivalMice, HairlessModels, BiologicalImmunohistochemistryCell DivisionHematopoietic Stem Cell MobilizationGene Expression RegulationNeoplastic Stem CellsGene ExpressionCell Culture TechniquesEmbryonic and Fetal DevelopmentCysteamineTime FactorsEmbryo LossBase SequencePregnancyOctamer Transcription Factor-3Embryo ResearchRegenerationBone Marrow CellsMelaninsApoptosisSkin TestsPhenotypeCell SeparationDNA DamageHomeodomain ProteinsAdministration, TopicalHair FollicleFertilization in VitroTotipotent Stem CellsTranscription FactorsFlow CytometryMutationHematopoiesisReverse Transcriptase Polymerase Chain ReactionRegenerative MedicineBlastomeresOxidative StressKeratinsGene Expression ProfilingMolecular Sequence DataMice, SCIDCleavage Stage, OvumTransplantation, AutologousTransplantation, HomologousPyrimidine DimersMicroscopy, FluorescencePeripheral Blood Stem Cell TransplantationAntigens, CD34