Myocytes, CardiacCell DifferentiationCells, CulturedGene Expression Regulation, DevelopmentalTranscription FactorsSignal TransductionStem CellsCell LineGene Expression RegulationEmbryonic Stem CellsRNA, MessengerMyocardiumCell DivisionCardiomegalyCell ProliferationMolecular Sequence DataCell LineageTretinoinDNA-Binding ProteinsApoptosisMice, TransgenicBase SequenceGene ExpressionTranscription, GeneticHomeodomain ProteinsMice, Inbred C57BLReverse Transcriptase Polymerase Chain ReactionPhenotypeImmunohistochemistryMice, KnockoutHeartRepressor ProteinsMorphogenesisEmbryo, MammalianPromoter Regions, GeneticCell CycleBlotting, WesternModels, BiologicalTrans-ActivatorsAnimals, NewbornHL-60 CellsTransfectionTime FactorsBasic Helix-Loop-Helix Transcription FactorsSex DifferentiationGene Expression ProfilingTumor Cells, CulturedMuscle DevelopmentRats, Sprague-DawleyNuclear ProteinsDown-RegulationUp-RegulationIn Situ HybridizationEpigenesis, GeneticMutationOsteogenesisAmino Acid SequenceDimethyl SulfoxideMyocardial ContractionOsteoblastsProto-Oncogene ProteinsCell SurvivalCell Culture TechniquesPhosphorylationMesenchymal Stromal CellsDNA PrimersMesodermGATA4 Transcription FactorEpithelial CellsFlow CytometryHypertrophyNeuronsRegenerationCell NucleusKeratinocytesBone Marrow CellsVentricular RemodelingInhibitor of Differentiation Protein 1Membrane ProteinsProtein BindingCell TransdifferentiationReceptors, NotchMyoD ProteinCell SizeHematopoietic Stem CellsFluorescent Antibody TechniqueMicroRNAsAntigens, DifferentiationPluripotent Stem CellsOligonucleotide Array Sequence AnalysisCell EnlargementDNAEndodermAdipocytesHistonesLeukemia, Erythroblastic, AcuteBiological MarkersTetradecanoylphorbol AcetateRNA, Small InterferingCarrier Proteins