Cell DifferentiationReceptor, Serotonin, 5-HT2ACells, CulturedReceptor, Serotonin, 5-HT1AStem CellsReceptors, Serotonin, 5-HT1Receptors, Serotonin, 5-HT3Gene Expression Regulation, DevelopmentalReceptor, Serotonin, 5-HT1BSignal TransductionTranscription FactorsEmbryonic Stem CellsCell LineageCell LineReceptor, Serotonin, 5-HT2CGene Expression RegulationRNA, MessengerTretinoinCell DivisionCell ProliferationMice, Inbred C57BLDNA-Binding ProteinsMolecular Sequence DataSex DifferentiationMice, KnockoutHomeodomain ProteinsReverse Transcriptase Polymerase Chain ReactionSerotonin 5-HT2 Receptor AntagonistsHT29 CellsMice, TransgenicBase SequencePhenotypeSerotonin 5-HT1 Receptor AgonistsGene ExpressionImmunohistochemistryTranscription, GeneticSerotonin 5-HT2 Receptor AgonistsReceptors, SerotoninOsteogenesisTrans-ActivatorsBasic Helix-Loop-Helix Transcription FactorsMesenchymal Stromal CellsOsteoblastsEmbryo, MammalianIn Situ HybridizationAntigens, DifferentiationReceptor, Serotonin, 5-HT1DDimethyl SulfoxideTumor Cells, CulturedNeuronsRepressor ProteinsGene Expression ProfilingHematopoietic Stem CellsFlow CytometryPromoter Regions, GeneticHL-60 CellsCell Culture TechniquesTransfectionSerotoninB-LymphocytesDown-RegulationLeukemia, Erythroblastic, AcuteMuscle DevelopmentEpithelial CellsAdipogenesisModels, BiologicalSerotonin AntagonistsPlasma CellsMyoblastsTime FactorsBone Marrow CellsBlotting, WesternNuclear ProteinsUp-RegulationReceptors, NotchSerotonin 5-HT3 Receptor AntagonistsSerotonin 5-HT1 Receptor AntagonistsSerotonin Receptor AgonistsCell CycleMorphogenesisMutationAmino Acid SequenceApoptosisMesodermDNA PrimersBone Morphogenetic ProteinsAdipocytesMyoD ProteinBone Morphogenetic Protein 2Nerve Tissue ProteinsMembrane ProteinsKeratinocytesCell SurvivalProto-Oncogene ProteinsGATA3 Transcription FactorCoculture TechniquesMyogeninChick EmbryoTransforming Growth Factor betaLens, Crystalline