Journal
JOURNAL OF THE NEUROLOGICAL SCIENCES
Volume 212, Issue 1-2, Pages 11-20Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0022-510X(03)00083-2
Keywords
cerebrospinal fluid; 14-3-3 protein; magnetic resonance imaging; multiple sclerosis; western blot
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Recent studies showed that the 14-3-3 protein is detectable in the cerebrospinal fluid (CSF) of prion-unrelated neurological diseases, such as meningoencephalitis and myelitis. To investigate the possible association between the amounts of the 14-3-3 protein in the CSF and the clinical severity of multiple sclerosis (MS), its levels were determined by Western blot in the CSF of the patients with relapsing-remitting MS (RRMS) (n = 10), secondary progressive MS (SPMS) (n = 7), primary progressive MS (PPMS) (n = 2), and non-MS inflammatory diseases of the CNS (n = 5). The 14-3-3 protein was identified in seven CSF samples, including four patients with SPMS in acute relapse, one with SPMS in remission accompanied by fresh cerebral infarction, one with RRMS in acute relapse, and one with human T-lymphotropic virus type I (HTLV-I)-associated myelopathy. The patients positive for the CSF 14-3-3 protein immunoreactivity showed more severe disability and higher levels of pleocytosis, protein, IgG, beta2-microglobulin, and neuron-specific enolase in the CSF, compared with those negative for its immunoreactivity. Four of these patients exhibited extensive lesions distributed along multiple vertebral segments in the spinal cord on MRI. In contrast, none of the MS patients without an extensive involvement of the spinal cord showed the CSF 14-3-3 protein immunoreactivity. These results suggest that detection of the 14-3-3 protein in the CSF provides a marker for severe inflammation-induced extensive damage of the central nervous system tissues responsible for poor therapeutic responses and irreversible neurological deficits in MS. (C) 2003 Elsevier Science B.V. All rights reserved.
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