Abstract
In this study, we assessed B cell subsets, including Bregs, during stable and active disease in relapsing remitting multiple sclerosis (RRMS) patients and related B cell subsets to vitamin D status. We report that RRMS patients have a decreased percentage of both memory B cells and Bregs compared to healthy controls. During a relapse, the reduction in Bregs involved in particular naïve Bregs. We found no correlation between vitamin D status and B cell subsets. An effect of vitamin D on Bregs cannot be ruled out, since it might be the function that is interfered with instead of relative numbers.
Copyright © 2011. Published by Elsevier B.V.
MeSH terms
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Adult
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B-Lymphocyte Subsets / immunology
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B-Lymphocyte Subsets / metabolism
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B-Lymphocyte Subsets / pathology
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B-Lymphocytes, Regulatory / immunology*
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B-Lymphocytes, Regulatory / metabolism
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B-Lymphocytes, Regulatory / pathology*
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Cells, Cultured
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Female
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Humans
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Immunologic Memory / immunology*
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Interleukin-10 / antagonists & inhibitors*
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Interleukin-10 / biosynthesis*
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Interleukin-10 / metabolism
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Lymphocyte Activation / immunology
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Lymphocyte Count
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Lymphopenia / diagnosis
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Lymphopenia / immunology
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Lymphopenia / pathology
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Male
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Middle Aged
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Multiple Sclerosis, Relapsing-Remitting / diagnosis
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Multiple Sclerosis, Relapsing-Remitting / immunology*
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Multiple Sclerosis, Relapsing-Remitting / pathology*
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Resting Phase, Cell Cycle / immunology*
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Toll-Like Receptor 9 / antagonists & inhibitors
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Toll-Like Receptor 9 / biosynthesis
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Vitamin D / analogs & derivatives
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Vitamin D / blood
Substances
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IL10 protein, mouse
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TLR9 protein, human
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Toll-Like Receptor 9
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Interleukin-10
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Vitamin D
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25-hydroxyvitamin D