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Pal Z, Tóthfalusi L, Lörincz Z, György B, Molnar MJ, Falus A, Buzás EI. Immunosuppressants increase the levels of natural autoantibodies reactive with glycosaminoglycans in myasthenia gravis. J Neuroimmunol 2014; 276:224-8. [PMID: 25139014 DOI: 10.1016/j.jneuroim.2014.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Revised: 07/29/2014] [Accepted: 08/01/2014] [Indexed: 10/24/2022]
Abstract
Increasing number of evidences support the role of glycosylation in the evolution of autoimmunity. We examined carbohydrate-reactive natural autoantibodies systematically for the first time in patients with autoimmune myasthenia gravis. Antibodies reactive to glycosaminoglycans were measured with CovaLink ELISA in the sera of 59 myasthenia patients as well as in 54 healthy controls. We used the GlycoChip carbohydrate array to characterize individual carbohydrate recognition patterns. Chondroitin-sulphate C and anti-α-mannose-specific IgG levels were significantly elevated in myasthenia patients. Unexpectedly, we found that immunosuppressants increased the levels of the protective IgM glycosaminoglycan-reactive natural antibodies demonstrating a new role for these agents in immunoregulation.
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Affiliation(s)
- Zsuzsanna Pal
- Department of Neurology, Semmelweis University, 1083 Balassa u.6, Budapest, Hungary; Department of Genetics, Cell and Immunobiology, Semmelweis University, 1089 Nagyvárad tér 4., Budapest, Hungary
| | - László Tóthfalusi
- Department of Pharmacodynamics, Semmelweis University, 1089 Nagyvárad tér 4., Budapest, Hungary
| | - Zsolt Lörincz
- Institute of Enzymology Biological Research Center, Hungarian Academy of Sciences, Karolina u 29, Budapest H-1518, Hungary
| | - Bence György
- Department of Genetics, Cell and Immunobiology, Semmelweis University, 1089 Nagyvárad tér 4., Budapest, Hungary
| | - Maria Judit Molnar
- Institute of Genomic Medicine and Rare Disorders, Semmelweis University, 1083 Tömő u.18, Budapest, Hungary
| | - Andras Falus
- Department of Genetics, Cell and Immunobiology, Semmelweis University, 1089 Nagyvárad tér 4., Budapest, Hungary
| | - Edit I Buzás
- Department of Genetics, Cell and Immunobiology, Semmelweis University, 1089 Nagyvárad tér 4., Budapest, Hungary.
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