Reduction in IL-10 producing B cells (Breg) in multiple sclerosis is accompanied by a reduced naïve/memory Breg ratio during a relapse but not in remission

J Neuroimmunol. 2011 Oct 28;239(1-2):80-6. doi: 10.1016/j.jneuroim.2011.08.019. Epub 2011 Sep 21.

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.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • B-Lymphocyte Subsets / immunology
  • B-Lymphocyte Subsets / metabolism
  • B-Lymphocyte Subsets / pathology
  • B-Lymphocytes, Regulatory / immunology*
  • B-Lymphocytes, Regulatory / metabolism
  • B-Lymphocytes, Regulatory / pathology*
  • Cells, Cultured
  • Female
  • Humans
  • Immunologic Memory / immunology*
  • Interleukin-10 / antagonists & inhibitors*
  • Interleukin-10 / biosynthesis*
  • Interleukin-10 / metabolism
  • Lymphocyte Activation / immunology
  • Lymphocyte Count
  • Lymphopenia / diagnosis
  • Lymphopenia / immunology
  • Lymphopenia / pathology
  • Male
  • Middle Aged
  • Multiple Sclerosis, Relapsing-Remitting / diagnosis
  • Multiple Sclerosis, Relapsing-Remitting / immunology*
  • Multiple Sclerosis, Relapsing-Remitting / pathology*
  • Resting Phase, Cell Cycle / immunology*
  • Toll-Like Receptor 9 / antagonists & inhibitors
  • Toll-Like Receptor 9 / biosynthesis
  • Vitamin D / analogs & derivatives
  • Vitamin D / blood

Substances

  • IL10 protein, mouse
  • TLR9 protein, human
  • Toll-Like Receptor 9
  • Interleukin-10
  • Vitamin D
  • 25-hydroxyvitamin D