Access

Review

Nature Reviews Molecular Cell Biology 4, 915–925 (1 December 2003) | doi:10.1038/nrm1261

Met, metastasis, motility and more

Carmen Birchmeier , Walter Birchmeier , Ermanno Gherardi & George F. Vande Woude

Hepatocyte growth factor/scatter factor and its receptor, the tyrosine kinase Met, arose late in evolution and are unique to vertebrates. In spite of this, Met uses molecules such as Gab1 — homologues of which are present in Caenorhabditis elegans and Drosophila melanogaster — for downstream signalling. Pivotal roles for Met in development and cancer have been established: Met controls cell migration and growth in embryogenesis; it also controls growth, invasion and metastasis in cancer cells; and activating Met mutations predispose to human cancer.