TestisCell DifferentiationRete TestisSpermatogenesisSertoli CellsCells, CulturedEpidermolysis Bullosa AcquisitaGene Expression Regulation, DevelopmentalStem CellsRNA, MessengerTranscription FactorsCryptorchidismSignal TransductionMolecular Sequence DataCell LineGene Expression RegulationEmbryonic Stem CellsLeydig CellsCell LineageCell DivisionBase SequenceCell ProliferationImmunohistochemistryReverse Transcriptase Polymerase Chain ReactionSpermatogoniaTretinoinFallopian Tube DiseasesDNA-Binding ProteinsSpermatozoaGene ExpressionMice, Inbred C57BLIn Situ HybridizationAqueous HumorHomeodomain ProteinsPhenotypeMice, TransgenicAmino Acid SequenceOsteogenesisAntigens, DifferentiationOsteoblastsTranscription, GeneticEpididymisSpermatocytesSeminiferous EpitheliumMesenchymal Stromal CellsAdipogenesisTestosteroneGene Expression ProfilingBlotting, WesternGerm CellsEmbryo, MammalianTime FactorsCell Culture TechniquesPromoter Regions, GeneticMyoblastsNeuronsTesticular DiseasesTesticular NeoplasmsTumor Cells, CulturedMuscle DevelopmentTrans-ActivatorsTransfectionHematopoietic Stem CellsBlotting, NorthernBone Marrow CellsNuclear ProteinsAdipocytesFlow CytometryKeratinocytesBasic Helix-Loop-Helix Transcription FactorsApoptosisDimethyl SulfoxideDNA, ComplementaryDNA PrimersOrgan SpecificityRepressor ProteinsMutationDown-RegulationModels, BiologicalHL-60 CellsSOX9 Transcription FactorCell CycleEpidermisBone Morphogenetic ProteinsUp-RegulationLeukemia, Erythroblastic, AcuteCloning, MolecularAlkaline PhosphataseMembrane ProteinsMesodermFluorescent Antibody TechniqueOrgan SizeTissue DistributionAnimals, NewbornMorphogenesisMyoD ProteinNerve Tissue ProteinsGonadsEpithelial CellsBone Morphogenetic Protein 2