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Systemic Levels Of Interleukin-6 And Matrix Metalloproteinase-9 In Patients With Multiple Myeloma May Be Useful As Prognostic Indexes Of Bone Disease, Aikaterini Sfiridaki, Spyridon Miyakis, George Tsirakis, Athanasios Alegakis, Andreas M. Passam, Ermioni Kandidaki, Andrerw N. Margioris, Michael Alexandrakis

Faculty of Science, Medicine and Health - Papers: part A

Multiple myeloma is characterized by accelerated production of the proteolytic enzyme matrix metalloproteinase (MMP)-9. We hypothesized that myeloma- produced MMP-9 may influence the rate of bone turnover in a paracrine manner. Thus, we examined the correlations of MMP-9 levels, disease severity, and bone turnover rate as evaluated by markers of bone formation and resorption. Thirty-seven newly diagnosed multiple myeloma patients (nine of Durie-Salmon stage I, 12 of stage II and 16 of stage III) and 12 age-matched controls were studied. Serum MMP-9 levels were significantly higher at stage II compared to stage I (188.78"91.27 vs. 59.25"33.09 ng/mL, p-0.004). Additionally, free …