Lumican: a new inhibitor of matrix metalloproteinase-14 activity.

Lumican: a new inhibitor of matrix metalloproteinase-14 activity.

FEBS letters (2014-10-12)

Katarzyna Pietraszek, Aurore Chatron-Colliet, Stéphane Brézillon, Corinne Perreau, Anna Jakubiak-Augustyn, Hubert Krotkiewski, François-Xavier Maquart, Yanusz Wegrowski

PMID25304424

ZUSAMMENFASSUNG

We previously showed that lumican regulates MMP-14 expression. The aim of this study was to compare the effect of lumican and decorin on MMP-14 activity. In contrast to decorin, the glycosylated form of lumican was able to significantly decrease MMP-14 activity in B16F1 melanoma cells. Our results suggest that a direct interaction occurs between lumican and MMP-14. Lumican behaves as a competitive inhibitor which leads to a complete blocking of the activity of MMP-14. It binds to the catalytic domain of MMP-14 with moderate affinity (KD∼275 nM). Lumican may protect collagen against MMP-14 proteolysis, thus influencing cell-matrix interaction in tumor progression.

MATERIALIEN

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