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Correspondence

Nature 419, 560 (10 October 2002) | doi:10.1038/419560b

Metastasis: objections to the same-gene model

René Bernards1 & Robert A. Weinberg2

  1. Division of Molecular Carcinogenesis and Center for Biomedical Genetics, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, The Netherlands
  2. Whitehead Institute for Biomedical Research and Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA

We appreciate the interest that our Concepts essay (Nature 418, 823; 2002) has evoked. But Edwards misrepresents our thinking when he writes: "If there is little difference between a primary malignant tumour and its metastases, the crucial issue becomes: what makes a tumour malignant (capable of metastasis)?