| Structural highlights
Function
[MMP14_HUMAN] Seems to specifically activate progelatinase A. May thus trigger invasion by tumor cells by activating progelatinase A on the tumor cell surface. May be involved in actin cytoskeleton reorganization by cleaving PTK7. Acts as a positive regulator of cell growth and migration via activation of MMP15.[1] [2]
Publication Abstract from PubMed
Membrane type 1 metalloprotease (MT1-MMP) is a membrane-anchored, zinc-dependent protease. MT1-MMP is an important mediator of cell migration and invasion, and overexpression of this enzyme has been correlated with the malignancy of various tumor types. Therefore, modulators of MT1-MMP activity are proposed to possess therapeutic potential in numerous invasive diseases. Here we report the inhibition mode of MT1-MMP by LEM-2/15 antibody, which targets a surface epitope of MT1-MMP. Specifically, the crystal structures of Fab LEM-2/15 in complex with the MT1-MMP surface antigen suggest that conformational swiveling of the enzyme surface loop is required for effective binding and consequent inhibition of MT1-MMP activity on the cell membrane. This inhibition mechanism appears to be effective in controlling active MT1-MMP in endothelial cells and at the leading edge of migratory cancer cells.
Inhibition Mechanism of Membrane Metalloprotease by an Exosite-Swiveling Conformational Antibody.,Udi Y, Grossman M, Solomonov I, Dym O, Rozenberg H, Moreno V, Cuniasse P, Dive V, Arroyo AG, Sagi I Structure. 2014 Dec 3. pii: S0969-2126(14)00357-8. doi:, 10.1016/j.str.2014.10.012. PMID:25482542[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Golubkov VS, Chekanov AV, Cieplak P, Aleshin AE, Chernov AV, Zhu W, Radichev IA, Zhang D, Dong PD, Strongin AY. The Wnt/planar cell polarity protein-tyrosine kinase-7 (PTK7) is a highly efficient proteolytic target of membrane type-1 matrix metalloproteinase: implications in cancer and embryogenesis. J Biol Chem. 2010 Nov 12;285(46):35740-9. doi: 10.1074/jbc.M110.165159. Epub 2010, Sep 13. PMID:20837484 doi:http://dx.doi.org/10.1074/jbc.M110.165159
- ↑ Gu G, Zhao D, Yin Z, Liu P. BST-2 binding with cellular MT1-MMP blocks cell growth and migration via decreasing MMP2 activity. J Cell Biochem. 2012 Mar;113(3):1013-21. doi: 10.1002/jcb.23433. PMID:22065321 doi:10.1002/jcb.23433
- ↑ Udi Y, Grossman M, Solomonov I, Dym O, Rozenberg H, Moreno V, Cuniasse P, Dive V, Arroyo AG, Sagi I. Inhibition Mechanism of Membrane Metalloprotease by an Exosite-Swiveling Conformational Antibody. Structure. 2014 Dec 3. pii: S0969-2126(14)00357-8. doi:, 10.1016/j.str.2014.10.012. PMID:25482542 doi:http://dx.doi.org/10.1016/j.str.2014.10.012
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