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Experimental Therapeutics, Molecular Targets, and Chemical Biology |
1 Dyax Corp., Cambridge, Massachusetts; 2 Dyax S.A., Liege, Belgium; and 3 Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
Requests for reprints: Laetitia Devy, Dyax Corp., 300 Technology Square, Cambridge, MA 02139. Phone: 617-250-5531; Fax: 617-225-2501; E-mail: ldevy{at}dyax.com.
Key Words: Matrix metalloproteinase-14 phage display antibody inhibitor anticancer activity breast cancer
Inhibition of specific matrix metalloproteinases (MMP) is an attractive noncytotoxic approach to cancer therapy. MMP-14, a membrane-bound zinc endopeptidase, has been proposed to play a central role in tumor growth, invasion, and neovascularization. Besides cleaving matrix proteins, MMP-14 activates proMMP-2 leading to an amplification of pericellular proteolytic activity. To examine the contribution of MMP-14 to tumor growth and angiogenesis, we used DX-2400, a highly selective fully human MMP-14 inhibitory antibody discovered using phage display technology. DX-2400 blocked proMMP-2 processing on tumor and endothelial cells, inhibited angiogenesis, and slowed tumor progression and formation of metastatic lesions. The combination of potency, selectivity, and robust in vivo activity shows the potential of a selective MMP-14 inhibitor for the treatment of solid tumors. [Cancer Res 2009;69(4):1517–26]
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