Cell DifferentiationCells, CulturedGene Expression Regulation, DevelopmentalEmbryonic Stem CellsStem CellsTranscription FactorsCell LineageCell LineSignal TransductionEmbryo, MammalianEmbryo, NonmammalianMolecular Sequence DataCell DivisionRNA, MessengerGene Expression RegulationCell ProliferationTretinoinBase SequenceMice, Inbred C57BLDNA-Binding ProteinsHomeodomain ProteinsMice, TransgenicMice, KnockoutPhenotypeReverse Transcriptase Polymerase Chain ReactionGene ExpressionTranscription, GeneticImmunohistochemistryAmino Acid SequenceEmbryonic DevelopmentCell CycleChick EmbryoIn Situ HybridizationCell Culture TechniquesTime FactorsSex DifferentiationMutationMorphogenesisTumor Cells, CulturedModels, BiologicalFlow CytometryCarcinoma, EmbryonalBlastocystTrans-ActivatorsMesodermNuclear ProteinsEndodermRepressor ProteinsPromoter Regions, GeneticTransfectionGene Expression ProfilingTeratomaApoptosisCell SurvivalCell AggregationPluripotent Stem CellsNeuronsBlotting, WesternB-LymphocytesDNA PrimersHematopoietic Stem CellsDown-RegulationMesenchymal Stromal CellsOsteogenesisHL-60 CellsOctamer Transcription Factor-3Epithelial CellsAntigens, DifferentiationCell MovementBasic Helix-Loop-Helix Transcription FactorsDimethyl SulfoxideCell NucleusOsteoblastsXenopus ProteinsUp-RegulationEmbryonal Carcinoma Stem CellsBone Marrow CellsMembrane ProteinsDNACell Line, TumorGastrulaFluorescent Antibody TechniqueZebrafishLeukemia, Erythroblastic, AcuteProtein BindingKineticsBone Morphogenetic ProteinsAdipogenesisPlasma CellsGerm CellsMuscle DevelopmentMyoblastsMitosisFibroblastsPhosphorylationReceptors, NotchLymphocyte ActivationCloning, MolecularTeratocarcinomaCell Adhesion