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Biochem Biophys Res Commun. 2010 Oct 22;401(3):363-9. doi: 10.1016/j.bbrc.2010.09.055. Epub 2010 Sep 17.

ADAM15 expression is downregulated in melanoma metastasis compared to primary melanoma.

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  • 1Pharmazentrum Frankfurt/ZAFES, University Hospital Goethe University Frankfurt, Frankfurt am Main, Germany.

Abstract

In a mouse melanoma metastasis model it has been recently shown that ADAM15 overexpression in melanoma cells significantly reduced the number of metastatic nodules on the lung. Unfortunately, the expression of ADAM15 in human melanoma tissue has not been determined so far. In our study, we characterized the expression of ADAM15 in tissue micro-arrays of patients with primary melanoma with melanoma metastasis. ADAM15 was expressed in melanocytes and endothelial cells of benign nevi and melanoma tissue. Importantly, ADAM15 was significantly downregulated in melanoma metastasis compared to primary melanoma. We further demonstrate that IFN-γ and TGF-β downregulate ADAM15 protein levels in melanoma cells. To investigate the role of ADAM15 in melanoma progression, we overexpressed ADAM15 in melanoma cells. Importantly, overexpression of ADAM15 in melanoma cells reduced the migration, invasion and the anchorage dependent and independent cell growth of melanoma cells. In summary, the downregulation of ADAM15 plays an important role in melanoma progression and ADAM15 act as a tumorsuppressor in melanoma.

Copyright © 2010 Elsevier Inc. All rights reserved.

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