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  • Title: CXCL10 and CXCL13 chemokines in patients with relapsing remitting and primary progressive multiple sclerosis.
    Author: Iwanowski P, Losy J, Kramer L, Wójcicka M, Kaufman E.
    Journal: J Neurol Sci; 2017 Sep 15; 380():22-26. PubMed ID: 28870573.
    Abstract:
    OBJECTIVES: Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system characterized by a variable clinical course. Different pathogenic mechanisms responsible for relapsing remitting (RRMS) and primary progressive multiple sclerosis (PPMS) are modulated by immunological process with important role of chemokine network. CXCL10 and CXCL13 chemokines act as chemoattractants and modulators of proinflammatory reactions promoting process of demyelination. In the present study, we investigated the concentrations of CXCL10 and CXCL13 in serum and cerebrospinal fluid (CSF) of patients with RRMS and PPMS. MATERIALS AND METHODS: The study groups comprised 25 RRMS patients (39,5±12years), 24 PPMS patients (49,9±10,5years), 31 healthy individuals (36±10,4years) with tension headache without symptoms of inflammatory diseases. A quantitive test kit based on ELISA has been used for chemokines measurement. Correlations analysis between the levels of CXCL10, CXCL13 and patient age, duration of MS, EDSS and IgG index were done. RESULTS: The mean concentration of CXCL10 in the CSF was statistically significantly higher in RRMS in comparison with the control group. The mean concentration of CXCL13 in the CSF was significantly higher in RRMS and PPMS than in the control group. The results have shown that in the stable phase of MS without relapse, mean concentration of CXCL10 and CXCL13 in CSF did not differ significantly between RRMS and PPMS. In PPMS a positive correlation between IgG index and CSF CXCL10 level or CSF CXCL13 level was observed. In RRMS a positive correlation between IgG index and CSF CXCL13 level was observed. CONCLUSIONS: These data indicate involvement of CXCL10 and CXCL13 chemokines in immunopathogenetic mechanisms in MS. There was no significant difference between mean CXCL10 or CXCL13 concentrations in the CSF in both RRMS and PPMS patients. No significant correlations were found between patient age and chemokines levels in theCSF in all groups. It suggest that these chemokines play similar role in inflammatory process despite more pronounced neurodegenerative process in PPMS.
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