单词	neuroblast
释义	neuroblast /ˈnjʊərə(ʊ)blast / noun Embryology An embryonic cell from which nerve fibres originate.Neuroblastomas represent a spectrum of differentiation of primitive neuroblasts into mature ganglion cells.... Only one cell of the cluster finally gives rise to a neuroblast because of lateral inhibition, involving the Notch receptor protein and its ligand Delta, which prevents other cells developing as neuroblasts. The esg gene is normally expressed in embryonic neuroblasts and contributes to central nervous system development.
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