microRNA control of neural progenitor maintenance and specification
During neural development, progenitors both divide to expand the neural progenitor (NP) population and differentiate as neurons and glia. This balance of proliferation and differentiation is crucial to the proper development of the central nervous system (CNS). This balance appears to be regulated by multiple different mechanisms including apico-basal polarization by Partitioning defective proteins (Par) as well as Hedgehog signaling, which in addition to its role in dorso-ventral patterning also promotes progenitor proliferation. How both of these pathways are modulated at the end of neurogenesis ...