ADAM15 decreases integrin alpha v beta 3/vitronectin-mediated ovarian cancer cell adhesion and motility in an RGD-dependent fashion

Beck V, Herold H, Benge A, Luber B, Hutzler P, Tschesche H, Kessler H, Schmitt M, Geppert HG, Reuning U (2005)
INTERNATIONAL JOURNAL OF BIOCHEMISTRY & CELL BIOLOGY 37(3): 590-603.

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We have recently described that integrin alphavbeta3 upon interaction with its major extracellular matrix ligand vitronectin induces adhesion, motility, and proliferation of human ovarian cancer cells. Due to the important function of alphavbeta3 in cancer cell biology, it has been the effort of many scientific approaches to specifically target alphavbeta3-mediated cell adhesion and tumorbiological effects arising thereof by synthetic integrin antagonists. More recently, proteins of the ADAM family have been recognized as naturally occurring integrin ligands. Among those, human ADAM 15 which encompasses the integrin binding RGD motif was shown to interact with integrin alphavbeta3. Thus, we investigated in human ovarian OV-MZ-6 cancer cells, expressing both ADAM 15 and alphavbeta3, whether ADAM15 might affect alphavbeta3-mediated tumorbiological effects. We stably (over)expressed ADAM15 or its extracellular domain in OV-MZ-6 cells as well as respective ADAM15 mutants containing the tripeptide SGA instead of RGD. Cells (over)expressing ADAM 15-RGD exhibited a significantly reduced alphavbeta3-mediated adhesion to vitronectin. Also, a significant time-dependent decline in numbers of cells cultivated on vitronectin was noticed. This effect was found to be rather due to impaired xvp3-mediated cell adhesion than decreased cell proliferation rates, since de novo DNA synthesis was not significantly altered by elevated ADAM 15 expression. Moreover, a substantially decreased random cellular motility was noticed as a function of ADAM 15 encompassing an intact RGD motif. In conclusion, our results point to a physiological role of ADAM 15 as a natural binding partner of integrin alphavbeta3 thereby loosening tumor cell adhesion to the underlying matrix and regulating tumor cell migration and invasion. (C) 2004 Elsevier Ltd. All rights reserved.
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Beck V, Herold H, Benge A, et al. ADAM15 decreases integrin alpha v beta 3/vitronectin-mediated ovarian cancer cell adhesion and motility in an RGD-dependent fashion. INTERNATIONAL JOURNAL OF BIOCHEMISTRY & CELL BIOLOGY. 2005;37(3):590-603.
Beck, V., Herold, H., Benge, A., Luber, B., Hutzler, P., Tschesche, H., Kessler, H., et al. (2005). ADAM15 decreases integrin alpha v beta 3/vitronectin-mediated ovarian cancer cell adhesion and motility in an RGD-dependent fashion. INTERNATIONAL JOURNAL OF BIOCHEMISTRY & CELL BIOLOGY, 37(3), 590-603.
Beck, V., Herold, H., Benge, A., Luber, B., Hutzler, P., Tschesche, H., Kessler, H., Schmitt, M., Geppert, H. G., and Reuning, U. (2005). ADAM15 decreases integrin alpha v beta 3/vitronectin-mediated ovarian cancer cell adhesion and motility in an RGD-dependent fashion. INTERNATIONAL JOURNAL OF BIOCHEMISTRY & CELL BIOLOGY 37, 590-603.
Beck, V., et al., 2005. ADAM15 decreases integrin alpha v beta 3/vitronectin-mediated ovarian cancer cell adhesion and motility in an RGD-dependent fashion. INTERNATIONAL JOURNAL OF BIOCHEMISTRY & CELL BIOLOGY, 37(3), p 590-603.
V. Beck, et al., “ADAM15 decreases integrin alpha v beta 3/vitronectin-mediated ovarian cancer cell adhesion and motility in an RGD-dependent fashion”, INTERNATIONAL JOURNAL OF BIOCHEMISTRY & CELL BIOLOGY, vol. 37, 2005, pp. 590-603.
Beck, V., Herold, H., Benge, A., Luber, B., Hutzler, P., Tschesche, H., Kessler, H., Schmitt, M., Geppert, H.G., Reuning, U.: ADAM15 decreases integrin alpha v beta 3/vitronectin-mediated ovarian cancer cell adhesion and motility in an RGD-dependent fashion. INTERNATIONAL JOURNAL OF BIOCHEMISTRY & CELL BIOLOGY. 37, 590-603 (2005).
Beck, V, Herold, H, Benge, A, Luber, B, Hutzler, P, Tschesche, Harald, Kessler, H, Schmitt, M, Geppert, HG, and Reuning, U. “ADAM15 decreases integrin alpha v beta 3/vitronectin-mediated ovarian cancer cell adhesion and motility in an RGD-dependent fashion”. INTERNATIONAL JOURNAL OF BIOCHEMISTRY & CELL BIOLOGY 37.3 (2005): 590-603.
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