Embryonic Stem CellsUmbilical CordStem CellsSkinCell DifferentiationPluripotent Stem CellsPrenatal InjuriesFetal BloodCells, CulturedStem Cell TransplantationKeratinocytesSkin Physiological PhenomenaKeratin-17Umbilical VeinsHematopoietic Stem CellsEpidermisUmbilical ArteriesEmbryo, MammalianOctamer Transcription Factor-3Hair FollicleCord Blood Stem Cell TransplantationFibroblastsCell Culture TechniquesInduced Pluripotent Stem CellsCell LineageFetusAdult Stem CellsDermisSpinal CordCell LineSkin AgingSkin NeoplasmsMesenchymal Stromal CellsWound HealingNeural Stem CellsEmbryoid BodiesPregnancyHematopoietic Stem Cell TransplantationSebaceous GlandsCell ProliferationEmbryo ResearchGene Expression Regulation, DevelopmentalSOXB1 Transcription FactorsMultipotent Stem CellsTeratomaStem Cell NicheSpinal Cord InjuriesMesenchymal Stem Cell TransplantationUltraviolet RaysHomeodomain ProteinsTotipotent Stem CellsGerm LayersCell SeparationFlow CytometryHernia, UmbilicalSkin TransplantationStem Cell FactorMelanocytesSignal TransductionGene Expression RegulationReverse Transcriptase Polymerase Chain ReactionChimeraEndodermGene Expression ProfilingLeukemia Inhibitory FactorStem Cell ResearchAntigens, CD34Coculture TechniquesCell SurvivalGene TargetingMice, Inbred C57BLTranscription FactorsHematopoiesisBiological MarkersImmunohistochemistryBlastocystMice, SCIDStage-Specific Embryonic AntigensRNA, MessengerUrachal CystNuclear ReprogrammingFetal Stem CellsGene ExpressionGreen Fluorescent ProteinsInfant, NewbornFeeder CellsRegenerative MedicineNeuronsBlood BanksBone Morphogenetic Protein 4Time FactorsSkin, ArtificialCulture Media, ConditionedSkin DiseasesTissue EngineeringModels, BiologicalBase SequenceGerm CellsWharton JellyMyocytes, Cardiac