Myocytes, CardiacCell DifferentiationReceptors, LysophospholipidLysophospholipidsSphingosineCells, CulturedGene Expression Regulation, DevelopmentalTranscription FactorsReceptors, Lysophosphatidic AcidSignal TransductionStem CellsEmbryonic Stem CellsGene Expression RegulationCell LineageRNA, MessengerMutationCell LineMyocardiumPhenotypeHomeodomain ProteinsMolecular Sequence DataDNA-Binding ProteinsFMRFamideBase SequenceReverse Transcriptase Polymerase Chain ReactionMice, Inbred C57BLRepressor ProteinsCell ProliferationReceptors, G-Protein-CoupledGene ExpressionReceptors, LysosphingolipidDrosophila ProteinsGene Expression ProfilingCell DivisionTranscription, GeneticPromoter Regions, GeneticImmunohistochemistryEpidermisAnimals, NewbornBasic Helix-Loop-Helix Transcription FactorsNuclear ProteinsAmino Acid SequenceNeuronsHeartKeratinocytesDrosophilaOligonucleotide Array Sequence AnalysisMice, TransgenicMice, KnockoutGenes, InsectTrans-ActivatorsModels, BiologicalReceptors, Cell SurfaceTranscriptional ActivationDrosophila melanogasterCardiomegalySex DifferentiationApoptosisProtein BindingRats, Sprague-DawleyMyocardial ContractionBlotting, WesternTime FactorsTretinoinTransfectionCalciumEmbryo, MammalianRats, WistarCell Line, TumorGene Expression Regulation, NeoplasticCell Culture TechniquesHeart VentriclesCell SurvivalPhosphorylationMesenchymal Stromal CellsDNA PrimersAntigens, DifferentiationIn Situ HybridizationMembrane ProteinsGATA4 Transcription FactorCell SizeUp-RegulationOsteogenesisOsteoblastsDown-RegulationMuscle ProteinsMyoblastsMuscle DevelopmentDisease Models, AnimalMitochondria, HeartRegenerationNerve Tissue ProteinsMutation, MissenseAdipogenesisFibroblastsCarrier ProteinsBone Marrow CellsFlow CytometryMuscle CellsPluripotent Stem Cells