Decreased Frequency of Circulating Myelin Oligodendrocyte Glycoprotein B Lymphocytes in Patients with Relapsing-Remitting Multiple Sclerosis
| Autor: | Annie Elong Ngono, Maud Lepetit, Markus Reindl, Alexandra Garcia, Flora Guillot, Athénaïs Genty, Mélanie Chesneau, Marion Salou, Laure Michel, Fabienne Lefrere, Kathrin Schanda, Berthe-Marie Imbert-Marcille, Nicolas Degauque, Arnaud Nicot, Sophie Brouard, David-Axel Laplaud, Jean-Paul Soulillou |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Journal of Immunology Research, Vol 2015 (2015) |
| Druh dokumentu: | article |
| ISSN: | 2314-8861 2314-7156 |
| DOI: | 10.1155/2015/673503 |
| Popis: | Although there is no evidence for a role of anti-MOG antibodies in adult MS, no information on B lymphocytes with MOG-committed BCR is available. We report here on the frequency of anti-MOG B cells forming rosettes with polystyrene beads (BBR) covalently bound to the extracellular domain of rhMOG in 38 relapsing-remitting patients (RRMS) and 50 healthy individuals (HI). We show a substantial proportion of circulating anti-MOG-BBR in both RRMS and HI. Strikingly, MOG-specific B cells frequencies were lower in MS than in HI. Anti-MOG antibodies measured by a cell-based assay were not different between MS patients and controls, suggesting a specific alteration of anti-MOG B cells in MS. Although anti-MOG-BBR were higher in CNS fluid than in blood, no difference was observed between MS and controls. Lower frequency of MOG-BBR in MS was not explained by an increased apoptosis, but a trend for lower proliferative capacity was noted. Despite an efficient B cell transmigration across brain derived endothelial cells, total and anti-MOG B cells transmigration was similar between MS and HI. The striking alteration in MOG-specific B cells, independent of anti-MOG antibody titers, challenges our view on the role of MOG-specific B cells in MS. |
| Databáze: | Directory of Open Access Journals |
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