Cell DifferentiationCells, CulturedGene Expression Regulation, DevelopmentalEmbryonic Stem CellsStem CellsTranscription FactorsSignal TransductionCell LineageCell LineEmbryo, MammalianCell DivisionGene Expression RegulationRNA, MessengerTretinoinMolecular Sequence DataCell ProliferationEmbryo, NonmammalianSex DifferentiationDNA-Binding ProteinsBase SequenceHomeodomain ProteinsMice, Inbred C57BLReverse Transcriptase Polymerase Chain ReactionMice, KnockoutPhenotypeMice, TransgenicGene ExpressionImmunohistochemistryTranscription, GeneticIn Situ HybridizationCell Culture TechniquesOsteogenesisCell CycleTrans-ActivatorsOsteoblastsAntigens, DifferentiationPromoter Regions, GeneticGene Expression ProfilingChick EmbryoMorphogenesisMesenchymal Stromal CellsNuclear ProteinsRepressor ProteinsTime FactorsEmbryonic DevelopmentEndodermTumor Cells, CulturedTransfectionNeuronsModels, BiologicalMesodermAmino Acid SequenceAdipogenesisCarcinoma, EmbryonalFlow CytometryHematopoietic Stem CellsPluripotent Stem CellsBasic Helix-Loop-Helix Transcription FactorsMutationDimethyl SulfoxideMyoblastsMuscle DevelopmentDown-RegulationBlotting, WesternHL-60 CellsBone Marrow CellsApoptosisTeratomaDNA PrimersLeukemia, Erythroblastic, AcuteUp-RegulationBone Morphogenetic ProteinsOctamer Transcription Factor-3BlastocystEpithelial CellsCell SurvivalAdipocytesReceptors, NotchB-LymphocytesFluorescent Antibody TechniqueMembrane ProteinsCell NucleusKeratinocytesEmbryonal Carcinoma Stem CellsCell AggregationProto-Oncogene ProteinsMyoD ProteinCell MovementBone Morphogenetic Protein 2ZebrafishTransforming Growth Factor betaPhosphorylationEpidermisNerve Tissue ProteinsPlasma CellsAlkaline PhosphataseRNA InterferenceMyogeninXenopus ProteinsDNA