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  • Title: Potential relevance of cerebrospinal fluid and serum levels and intrathecal synthesis of active matrix metalloproteinase-2 (MMP-2) as markers of disease remission in patients with multiple sclerosis.
    Author: Fainardi E, Castellazzi M, Tamborino C, Trentini A, Manfrinato MC, Baldi E, Tola MR, Dallocchio F, Granieri E, Bellini T.
    Journal: Mult Scler; 2009 May; 15(5):547-54. PubMed ID: 19318509.
    Abstract:
    BACKGROUND: Little is known about the involvement of matrix metalloproteinase-2 (MMP-2) and its tissue inhibitor TIMP-2 in multiple sclerosis (MS). OBJECTIVE: To elucidate the actual implication of MMP-2 and TIMP-2 in MS. METHODS: Cerebrospinal fluid (CSF) and serum levels of active MMP-2 and TIMP-2 were measured by activity assay system and ELISA, respectively, in 67 patients with relapsing-remitting MS (RRMS), categorized according clinical and magnetic resonance imaging (MRI), and in 129 controls. RESULTS: Cerebrospinal fluid and serum active MMP-2/TIMP-2 ratio mean values and an intrathecal active MMP-2 production were more increased in RRMS than in non-inflammatory conditions (P < 0.001, P < 0.05, and P < 0.0001, respectively) and in MRI inactive than in MRI active RRMS (P < 0.02, P < 0.01 and P < 0.001, respectively). An intrathecal synthesis of active MMP-2 was more frequent in RRMS than in inflammatory disorders (P < 0.01). Serum active MMP-2/TIMP-2 ratio and MS disease duration were positively correlated (P < 0.02). CONCLUSION: These findings suggest a potential role for MMP-2 activity in the termination of MS neuroinflammation related to remission of the disease and seem to indicate that serum MMP-2/TIMP-2 ratio may represent a useful biomarker for monitoring MS recovery phase.
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