Journal
NEUROBIOLOGY OF DISEASE
Volume 40, Issue 1, Pages 331-339Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.nbd.2010.06.007
Keywords
Multiple sclerosis; Biomarkers; CSF; Bri2; Itm2b; Amyloid; Cognition; Cerebellum; Proteomics; Fetuin-A; Ribonuclease-1
Categories
Funding
- Multiple Sclerosis Research Center of New York
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To identify potential multiple sclerosis (MS)-specific biomarkers, we used a proteomic approach to screen cerebrospinal fluid (CSF) from 40 MS patients and 13 controls. We identified seven proteins (Beta-2-microglobulin, Bri2-23, Fetuin-A, Kallikrein-6, Plasminogen, Ribonuclease-1, and Transferrin) that had significantly altered levels in MS compared to controls. Clinical subgroup analysis revealed that decreased CSF levels of Bri2-23, a peptide cleaved from Bri2, were significantly associated with patients having cerebellar dysfunction and cognition impairment. Furthermore, expression levels of Bri2 were specifically decreased in the cerebellum compared to other areas of same brain in MS but not in controls, suggesting that decreased cerebellar Bri2 expression may play a role in cerebellar dysfunction. The association with cognition impairment is also of interest because Bri2 is linked to the amyloid processing pathway in the brain. CSF levels of Bri2-23 may serve as a biomarker of these functions in MS and merits further investigation. (c) 2010 Elsevier Inc. All rights reserved.
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