Notch-mediated juxtacrine signal between adjacent cells.
Graphic: National Institute of Health.  U.S. <a rel="nofollow" class="external autonumber" href="https://ccr.cancer.gov/staff/images/1372_Fortini_178.gif">[1]</a>  Upload: JWSchmidt.
Originally uploaded to en.wikipedia by <a href="https://en.wikipedia.org/wiki/User:JWSchmidt" class="extiw" title="en:User:JWSchmidt">JWSchmidt</a> (<a class="external text" href="https://en.wikipedia.org/w/index.php?title=Special:Log&amp;page=File:Notchccr.gif">file log</a>)