http://www.sciencedaily.com/releases/2008/11/081110153621.htm
<p>Researchers at the University of Southern California (USC) have identified a novel mechanism in the regulation and differentiation of neural stem cells.</p> <p>Researchers found that the protein receptor Ryk has a key role in the differentiation of neural stem cells, and demonstrated a signaling mechanism that regulates neuronal differentiation as stem cells …</p>