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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/26270

Title: Dimethyl fumarate induces a persistent change in the composition of the innate and adaptive immune system in multiple sclerosis patients
Authors: Montes Diaz, G.
Fraussen, Judith
Van Wijmeersch, Bart
Hupperts, R.
Somers, Veerle
Issue Date: 2018
Citation: SCIENTIFIC REPORTS, 8 (Art N° 8194)
Abstract: The effects of dimethyl fumarate (DMF) on the immune system in multiple sclerosis (MS) are not completely elucidated. In this study, an extensive immunophenotypic analysis of innate and adaptive immune cells of DMF-treated MS patients was performed. Peripheral blood immune cell phenotypes were determined using flow cytometry in a follow-up study of 12 MS patients before, after 3 and 12 months of DMF treatment and a cross-sectional study of 25 untreated and 64 DMF-treated MS patients. Direct effects of DMF on B cells were analyzed in vitro. After 12 months of DMF treatment, percentages of monocytes, natural killer cells, naive T and B cells and transitional B cells increased. Percentages of (effector) memory T cells, (non) class-switched memory B cells and double negative B cells decreased together with CD4(+) T cells expressing interferon-gamma (IFN-gamma), granulocyte macrophage colony-stimulating factor (GM-CSF) and interleukin-17 (IL-17). DMF treatment was fully effective as of 6 months and directly induced apoptosis and decreased expression of costimulatory CD40, antigen presentation molecule MHCII and B cell activating factor receptor (BAFFR) on B cells. DMF induced a persistent change of the immune system of MS patients, directly induced apoptosis and reduced expression of functional markers on B cells.
Notes: Somers, V (reprint author), Hasselt Univ, Biomed Res Inst, Diepenbeek, Belgium. veerle.somers@uhasselt.be
URI: http://hdl.handle.net/1942/26270
DOI: 10.1038/s41598-018-26519-w
ISI #: 000433289600010
ISSN: 2045-2322
Category: A1
Type: Journal Contribution
Appears in Collections: Research publications

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