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Enhanced activation of and increased production of matrix metalloproteinase‐9 by human blood monocytes upon adhering to carbamylated collagen
Author(s) -
Garnotel Roselyne,
Sabbah Nadia,
Jaisson Stéphane,
Gillery Philippe
Publication year - 2004
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/s0014-5793(04)00233-9
Subject(s) - matrix metalloproteinase , chemistry , metalloproteinase , microbiology and biotechnology , matrix (chemical analysis) , monocyte , biochemistry , medicine , biology , chromatography
Carbamylation refers to chemical modification of protein side chains by cyanate derived e.g. from urea. It alters their structural and functional properties. We have studied the influence of the carbamylation of type I collagen in vitro on its interactions with elutriated human monocytes, and its potential role in atherosclerosis. Adhesion of monocytes onto carbamylated collagen was significantly enhanced compared to native collagen. There was no change in superoxide anion production. On the other hand, there was an increase in the production and the activation of matrix metalloproteinase‐9. No effect was found on tissue inhibitor of metalloproteinase‐1 production. Thus, the presence of carbamylated collagen may stimulate the remodelling of extracellular matrix mediated by activated monocytes. Such alterations may contribute to enhanced atherosclerosis in renal insufficiency, a pathological condition associated with elevated levels of carbamylation.