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  • Title: Raised monocyte chemotactic protein-1 (MCP-1)/CCL2 in cerebrospinal fluid of patients with neuropsychiatric lupus.
    Author: Iikuni N, Okamoto H, Yoshio T, Sato E, Kamitsuji S, Iwamoto T, Momohara S, Taniguchi A, Yamanaka H, Minota S, Kamatani N.
    Journal: Ann Rheum Dis; 2006 Feb; 65(2):253-6. PubMed ID: 16410530.
    Abstract:
    BACKGROUND: An imbalance in cytokine homoeostasis is thought to have a key role in the neuropsychiatric syndromes of systemic lupus erythematosus (NPSLE), and recently, a role for chemokines has been noted. OBJECTIVE: To compare concentrations of monocyte chemotactic protein-1 (MCP-1)/CCL2 in cerebral spinal fluid (CSF) of patients with SLE, and with and without neuropsychiatric symptoms. METHODS: CSF was obtained from 185 patients with SLE: 96 with NPSLE and 89 patients with SLE without neuropsychiatric symptoms (non-NPSLE patients). MCP-1/CCL2 concentrations were measured with an ELISA. RESULTS: The average concentration of CSF MCP-1/CCL2 in patients with NPSLE was 1959 pg/ml, and in non-NPSLE patients 712 pg/ml. The average MCP-1/CCL2 concentration was significantly higher in the NPSLE group than in the non-NPSLE group (p<0.001). In one representative patient with NPSLE, MCP-1/CCL2 levels in the CSF decreased in parallel with a decline in neuropsychiatric symptoms. CONCLUSIONS: CSF MCP-1/CCL2 levels are higher in patients with NPSLE than in non-NPSLE patients. MCP-1/CCL2 may have an important role in the expression of NPSLE. These results indicate that CSF MCP-1/CCL2 reflects an inflammatory activity in the brain, suggesting that it might be used as a diagnostic tool and a monitor for therapeutic responses in patients with NPSLE.
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