FetusLungFetal Organ MaturityMammalsLung DiseasesLung NeoplasmsCell LineAmniotic FluidCells, CulturedPulmonary SurfactantsNerve RegenerationStem CellsPulmonary Surfactant-Associated Protein AMolecular Sequence DataRNA, MessengerLung InjuryGestational AgePulmonary Surfactant-Associated ProteinsLateral VentriclesPregnancyNeuronsPulmonary AlveoliAdult Stem CellsEpendymaCricetinaeNeurogenesisCell DifferentiationAmino Acid SequenceFibroblastsLung Volume MeasurementsProteolipidsBase SequenceImmunohistochemistryBetamethasoneGene Expression Regulation, DevelopmentalGene Expression RegulationBromodeoxyuridineEpithelial CellsCell ProliferationCerebral VentriclesMice, Inbred C57BLCarcinoma, Non-Small-Cell LungHernia, DiaphragmaticSignal TransductionChorioamnionitisRats, Sprague-DawleyAnimals, NewbornRegenerationSheepTransfectionOrgan Culture TechniquesCricetulusLung TransplantationPulmonary Surfactant-Associated Protein CRespiratory Distress Syndrome, NewbornProsencephalonHeLa CellsAxonsNerve Tissue ProteinsDNARespiratory MucosaPneumocytesCell DivisionSphingomyelinsNeural Stem CellsOlfactory BulbDentate GyrusTranscription FactorsCloning, MolecularGene ExpressionTime FactorsNeurogliaRabbitsPulmonary Surfactant-Associated Protein BBrainEmbryonic and Fetal DevelopmentAcute Lung InjuryMutationHyaline Membrane DiseaseDexamethasoneMice, KnockoutReverse Transcriptase Polymerase Chain ReactionMice, TransgenicCell CountCHO CellsTranscription, GeneticMicroscopy, ElectronPhosphatidylcholinesCell SurvivalCell LineageModels, BiologicalMyelin ProteinsIn Situ HybridizationRecombinant ProteinsGreen Fluorescent ProteinsMembrane ProteinsNestinMicroscopy, ConfocalBronchiKinetics