Journal
CLINICA CHIMICA ACTA
Volume 356, Issue 1-2, Pages 95-101Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cccn.2005.01.034
Keywords
polyclonal antibody; autoantigen; cerebrospinal fluid; alpha B-crystallin; multiple sclerosis
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Background: alpha B-crystallin is a chaperone protein and a potential myelin antigen to human T cells in Multiple Sclerosis (MS). In this study we investigate the existence of alpha B-crystallin in the cerebrospinal fluid (CSF) of patients with clinical symptoms of MS and control individuals without these symptoms, using a newly developed aB-crystallin specific chicken antibody. Methods: A chicken anti-alpha B-crystallin was raised against recombinant alpha B-crystallin, characterized and used in a semiquantitative Western blot analysis of CSF from 16 MS patients and 16 neurological patients without MS. Results: Western blot analysis revealed the presence of high molecular weight aB-crystallin in CSF. Possibly posuranslationally modified aggregates of aB-crystallin were found in human astroglioma U373 cells. CSF aB-crystallin was seen in the CSF in 100% of MS patients and 88% of neurological controls without MS. Conclusion: alpha B-crystallin is present in the CSF in patients with MS and other neurological controls. Furthermore, aB-crystallin in CSF and human astroglioma cell line U373 is found in aggregates. (c) 2005 Elsevier B.V. All rights reserved.
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