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Nature 396, 18-19 (5 November 1998) | doi:10.1038/23815

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Developmental biology:  Sending all the right signals

Norbert Perrimon1 & Joseph B. Duffy2

During growth and development, cells signal to — and regulate the fates of — each other. Cells can initiate many developmental fates in response to a single signal and, throughout the years, two mechanisms have been identified1.

  1. Norbert Perrimon is in the Department of Genetics, Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA.
    e-mail: Email: perrimon@rascal.med.harvard.edu
  2. Joseph B. Duffy is in the Department of Biology, Indiana University, Bloomington, Indiana 47405, USA.
    e-mail: Email: jduffy@bio.indiana.edu