Organizers, EmbryonicNucleolus Organizer RegionGoosecoid ProteinBody PatterningEmbryonic InductionGastrulaXenopus ProteinsSilver StainingEmbryologyGene Expression Regulation, DevelopmentalOtx Transcription FactorsEmbryo, NonmammalianTissue EngineeringZebrafish ProteinsHomeodomain ProteinsMesodermXenopusFibroblast Growth Factor 8Nodal ProteinRhombencephalonCell DifferentiationNotochordHydraMesencephalonZebrafishNodal Signaling LigandsAxisHeadIntercellular Signaling Peptides and ProteinsIn Situ HybridizationWnt ProteinsEctodermXenopus laevisBone Morphogenetic ProteinsTissue TransplantationMesenchymal Stromal CellsNervous SystemStem Cell TransplantationLIM-Homeodomain ProteinsMorphogenesisSilverCell NucleolusRegenerationStem CellsTranscription FactorsGenes, HomeoboxChondrogenesisRegenerative MedicineWnt1 ProteinActivinsLeft-Right Determination FactorsSignal TransductionEndodermTissue ScaffoldsCell Culture TechniquesCell LineageEmbryonic Stem CellsMetencephalonCell TransplantationInduced Pluripotent Stem CellsBlastulaFetal ProteinsT-Box Domain ProteinsMolecular Sequence DataCells, CulturedGlycoproteinsProteinsTwins, ConjoinedFibroblast Growth FactorsBlastodermCord Blood Stem Cell TransplantationMatrix Attachment Region Binding ProteinsChick EmbryoBone Morphogenetic Protein 4Silver NitrateMesenchymal Stem Cell TransplantationAmino Acid SequenceTransforming Growth Factor betabeta CateninHepatocyte Nuclear Factor 3-betaAmphibiansRepressor ProteinsHematopoietic Stem Cell TransplantationInhibinsRNA, MessengerTectum MesencephaliPhenotypeTransplantation, HomologousCell ProliferationChondrocytesOsteogenesisTrans-ActivatorsNeural PlateModels, BiologicalHedgehog ProteinsDrug PackagingBone Marrow CellsProsencephalonTime FactorsHyaline Cartilage