Pluripotent Stem CellsInduced Pluripotent Stem CellsEmbryonic Stem CellsCell DifferentiationFeeder CellsCell Culture TechniquesNuclear ReprogrammingEmbryoid BodiesStem CellsGerm LayersRegenerative MedicineOctamer Transcription Factor-3Cell LineageNeural Stem CellsStem Cell TransplantationFetusTeratomaActivinsStem Cell ResearchCells, CulturedChimerismCell LineX Chromosome InactivationCell DedifferentiationSOXB1 Transcription FactorsHematopoietic Stem CellsFetomaternal TransfusionFibroblastsMyocytes, CardiacNeuroepithelial CellsCell SeparationCell ProliferationEndodermBone Morphogenetic Protein 4KaryotypingWnt Signaling PathwayMaternal-Fetal ExchangeStage-Specific Embryonic AntigensGene Expression ProfilingTissue EngineeringFetal Stem CellsFlow CytometryGene TargetingBiological MarkersAdult Stem CellsFetal ResearchPregnancyGene Expression Regulation, DevelopmentalMice, SCIDFetal Tissue TransplantationComplicityTranscription FactorsCaspases, EffectorReverse Transcriptase Polymerase Chain ReactionKruppel-Like Transcription FactorsSignal TransductionLentivirusCoculture TechniquesNeuronsCell- and Tissue-Based TherapyCulture MediaAntigens, DifferentiationGene Expression RegulationLamininHepatocytesFibroblast Growth Factor 2ImmunohistochemistryEmbryo, MammalianAborted FetusModels, BiologicalStem Cell NicheHigh-Throughput Screening AssaysPrenatal DiagnosisChimeraWnt ProteinsMultipotent Stem CellsRetinal Pigment EpitheliumResearchDrug CombinationsProteoglycansHematopoietic Stem Cell TransplantationHomeodomain ProteinsEpigenesis, GeneticPlacentaMesenchymal Stromal CellsBlotting, WesternPhenotypeGerm CellsFetal BloodRegenerationAmniotic FluidEmbryonal Carcinoma Stem CellsGenetic VectorsProto-Oncogene Proteins c-mycDirected Tissue DonationHematopoiesisMesenchymal Stem Cell TransplantationTrophoblastsTransduction, GeneticGreen Fluorescent Proteins