Developmental bait and switch: Enzyme responsible for neural crest cell development discovered

During the early developmental stages of vertebrates, cells undergo extensive rearrangements, and some cells migrate over large distances to populate particular areas and assume novel roles as differentiated cell types. A new study provides new clues about this process -- at least in the case of neural crest cells, which give rise to most of the peripheral nervous system, to pigment cells, and to large portions of the facial skeleton.

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