SpermatogoniaStem CellsSpermatogenesisTestisSeminiferous TubulesStem Cell TransplantationGlial Cell Line-Derived Neurotrophic FactorGlial Cell Line-Derived Neurotrophic Factor ReceptorsAdult Stem CellsSertoli CellsGerm CellsStem Cell NicheFertility PreservationInseminationInfertility, MaleCell DifferentiationCryopreservationCell Culture TechniquesPluripotent Stem CellsIntegrin alpha6Octamer Transcription Factor-3CryptorchidismSpermatozoaProto-Oncogene Proteins c-kitStage-Specific Embryonic AntigensCell TransplantationMice, TransgenicCell ProliferationMultipotent Stem CellsCell SeparationCells, CulturedSemen PreservationPlant StemsMice, Inbred C57BLBusulfanSpermatocytesHematopoietic Stem CellsStem Cell ResearchSpermatidsFertilityImmunomagnetic SeparationProto-Oncogene Proteins c-retGreen Fluorescent ProteinsAntigens, Thy-1Rats, TransgenicNeoplastic Stem CellsCell LineageKruppel-Like Transcription FactorsAntigens, CD9Transplantation, HeterologousSeminiferous EpitheliumBlood-Testis BarrierFlow CytometryMice, Inbred DBASperm CountBiological MarkersCell SurvivalTesticular NeoplasmsAnimals, NewbornNeural Stem CellsHematopoietic Stem Cell TransplantationNodal ProteinCoculture TechniquesInduced Pluripotent Stem CellsCell DivisionReverse Transcriptase Polymerase Chain ReactionLeydig CellsMice, NudeAnimals, Genetically ModifiedSignal TransductionTranscription FactorsGene Expression RegulationGene Expression Regulation, DevelopmentalTransplantation, AutologousLuminescent ProteinsGene Expression ProfilingImmunohistochemistryMesenchymal Stem Cell TransplantationMeiosisPhenotypeTime FactorsRNA-Binding ProteinsStem Cell FactorBrain StemGene ExpressionMice, Inbred StrainsModels, BiologicalCell LineMice, Inbred BALB CMesenchymal Stromal CellsRNA InterferenceApoptosisAgingGenes, ReporterDNA MethylationMice, KnockoutFetal Stem CellsDNA-Binding ProteinsBiopsyHeterozygote