Research News from the Howard Hughes Medical Institute (HHMI)
Brain-Wiring Molecule Also Plays Role in Muscle Development
A potent chemical signal known to guide the wiring of neurons in the
developing nervous system also directs migrating muscle fibers to their
proper connections. The HHMI researchers also found that the signal
initially repels muscle cells and later becomes a powerful attractant. The discovery of the signal's dual role and its drastic turnabout illustrates how tissues may use the same signals for very different purposes during development.
Research published in the April 27, 2001, issue of the journal Science.
For the full story go to http://www.hhmi.org/news/goodman2.html
Message posted by: Trevor M. D'Souza