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Mutational and functional analysis reveals ADAMTS18 metalloproteinase as a novel driver in melanoma.

The disintegrin-metalloproteinases with thrombospondin domains (ADAMTS) genes have been suggested to function as tumor suppressors as several have been found to be epigenetically silenced in various cancers. We performed a mutational analysis of the ADAMTS gene family in human melanoma and identified a large fraction of melanomas to harbor somatic mutations. To evaluate the functional consequences of the most commonly mutated gene, ADAMTS18, six of its mutations were biologically examined. ADAMTS18 mutations had little effect on melanoma cell growth under standard conditions, but reduced cell dependence on growth factors. ADAMTS18 mutations also reduced adhesion to laminin and increased migration in vitro and metastasis in vivo. Melanoma cells expressing mutant ADAMTS18 had reduced cell migration after short hairpin RNA-mediated knockdown of ADAMTS18, suggesting that ADAMTS18 mutations promote growth, migration, and metastasis in melanoma.

Pubmed ID: 21047771


  • Wei X
  • Prickett TD
  • Viloria CG
  • Molinolo A
  • Lin JC
  • Cardenas-Navia I
  • Cruz P
  • NISC Comparative Sequencing Program
  • Rosenberg SA
  • Davies MA
  • Gershenwald JE
  • López-Otín C
  • Samuels Y


Molecular cancer research : MCR

Publication Data

November 25, 2010

Associated Grants

  • Agency: NCI NIH HHS, Id: P50 CA93459

Mesh Terms

  • ADAM Proteins
  • Cell Adhesion
  • Cell Growth Processes
  • Cell Line, Tumor
  • Cell Movement
  • DNA Mutational Analysis
  • Genes, Neoplasm
  • Humans
  • Melanoma
  • Metalloproteases
  • Mutation
  • Neoplasm Metastasis