MegakaryocytesMegakaryocyte Progenitor CellsThrombopoietinHematopoietic Stem CellsThrombopoiesisBone Marrow CellsReceptors, ThrombopoietinColony-Forming Units AssayHematopoiesisInterleukin-3Antigens, CD34Stem CellsThrombocytopeniaCell DifferentiationStem Cell FactorPloidiesBlood PlateletsCells, CulturedLigandsBone MarrowErythropoietinGranulocyte-Macrophage Colony-Stimulating FactorRecombinant ProteinsCell DivisionCell LineageMyeloid Progenitor CellsPlatelet CountThrombocytosisErythroid Precursor CellsMice, Inbred C57BLCell ProliferationNeural Stem CellsFlow CytometryPlatelet Membrane Glycoprotein IIbGATA1 Transcription FactorFetal BloodCell SeparationEndothelial CellsMultipotent Stem CellsCell CountSignal TransductionMice, TransgenicGranulocytesAntigens, CDGranulocyte Colony-Stimulating FactorStem Cell TransplantationColony-Stimulating FactorsPlatelet Factor 4Megakaryocyte-Erythroid Progenitor CellsMice, KnockoutNeurogenesisGene Expression Regulation, DevelopmentalHematopoietic Stem Cell MobilizationLymphoid Progenitor CellsAdult Stem CellsErythropoiesisReceptors, CytokineBlood Cell CountTranscription FactorsChemokine CXCL12Cell LineCell MovementHematopoietic Cell Growth FactorsProto-Oncogene Proteins c-kitNestinHematopoietic Stem Cell TransplantationCell Culture TechniquesInterleukin-11OligodendrogliaRegenerationMolecular Sequence DataErythroid-Specific DNA-Binding FactorsNeuronsPolyploidyCell SurvivalTime FactorsCD40 LigandThrombocythemia, EssentialReverse Transcriptase Polymerase Chain ReactionGene Expression RegulationRNA, MessengerNeovascularization, PhysiologicGrowth SubstancesBlood CellsImmunohistochemistryNF-E2 Transcription FactorNerve Tissue ProteinsBasic Helix-Loop-Helix Transcription FactorsProto-Oncogene ProteinsHomeodomain Proteins