© 2004 by Oxford University Press
© 2004 Oxford University Press
EDITORIAL |
Suppression of MetastasisA New Function for Known Proteins
Affiliations of authors: Pritzker School of Medicine (JCB, CRS), Department of Surgery, Section of Urology, and Committee on Cancer Biology, Biological Sciences Division (DVG, CRS), The University of Chicago Cancer Research Center (CRS), The University of Chicago, Chicago, IL.
Correspondence to: Carrie Rinker-Schaeffer, PhD, Section of Urology, MC6038, The University of Chicago, 5841 S. Maryland Ave., Chicago, IL 60637 (e-mail: crinkers@midway.uchicago.edu)
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In this issue of the Journal, Chang et al. (1) report the identification of an unanticipated function for connective tissue growth factor (CTGF) in the regulation of aspects of lung cancer metastasis. Their data add to a growing body of literature identifying new functions of known proteins in the regulation of metastatic growth. The functional identification of metastasis suppressor proteins requires appropriately designed in vitro, in vivo, and clinical correlative studies to assess the role of the candidate protein in the metastatic process (2). To this end, the authors present three lines of evidence to support their assertion that CTGF functions as a metastasis suppressor in lung cancer. First, ectopic