Cell DifferentiationCells, CulturedSignal TransductionGene Expression Regulation, DevelopmentalTranscription FactorsStem CellsCell LineMolecular Sequence DataRNA, MessengerGene Expression RegulationSex DifferentiationCell ProliferationEmbryonic Stem CellsCell LineageCell DivisionBase SequenceMice, Inbred C57BLDNA-Binding ProteinsMice, KnockoutTretinoinReverse Transcriptase Polymerase Chain ReactionPhenotypeHomeodomain ProteinsGene ExpressionMice, TransgenicAmino Acid SequenceImmunohistochemistryOsteoblastsOsteogenesisTranscription, GeneticAntigens, DifferentiationNeuronsMutationTransfectionPromoter Regions, GeneticTime FactorsModels, BiologicalBlotting, WesternMesenchymal Stromal CellsAdipogenesisIn Situ HybridizationTrans-ActivatorsTumor Cells, CulturedGene Expression ProfilingApoptosisFlow CytometryEmbryo, MammalianMyoblastsCell Culture TechniquesDown-RegulationKeratinocytesProtein BindingBone Marrow CellsUp-RegulationNuclear ProteinsHematopoietic Stem CellsBasic Helix-Loop-Helix Transcription FactorsAdipocytesMembrane ProteinsMuscle DevelopmentDNA PrimersRepressor ProteinsPhosphorylationCell CycleEpidermisNerve Tissue ProteinsBone Morphogenetic ProteinsEpithelial CellsHL-60 CellsMesodermDimethyl SulfoxideCell SurvivalCell Line, TumorMorphogenesisRNA, Small InterferingProto-Oncogene ProteinsCell MovementLeukemia, Erythroblastic, AcuteReceptors, NotchCarrier ProteinsTransforming Growth Factor betaAlkaline PhosphataseMonocytesBone Morphogenetic Protein 2Fluorescent Antibody TechniqueMyoD ProteinRecombinant ProteinsBiological MarkersCoculture TechniquesPolymerase Chain ReactionCore Binding Factor Alpha 1 SubunitRNA InterferenceChick EmbryoNeural Stem CellsMacrophagesB-LymphocytesChondrogenesisMyogeninGranulocytesCell Nucleus