Helminth-induced CD19(+)CD23(hi) B cells modulate experimental allergic and autoimmune inflammation

Mark S. Wilson, Matthew D. Taylor, Mary T. O'Gorman, Adam Balic, Tom A. Barr, Kara Filbey, Stephen M. Anderton, Rick M. Maizels

Research output: Contribution to journalArticlepeer-review

Abstract

Numerous population studies and experimental models suggest that helminth infections can ameliorate immuno-inflammatory disorders such as asthma and autoimmunity. Immunosuppressive cell populations associated with helminth infections include Treg and alternatively-activated macrophages. In previous studies, we showed that both CD4(+) CD25(+) Treg, and CD4(-) MLN cells from Heligmosomoides polygyus-infected C57BL/6 mice were able to transfer protection against allergic airway inflammation to sensitized but uninfected animals. We now show that CD4(-)CD19(+) MLN B cells from infected, but not naive, mice are able to transfer a down-modulatory effect on allergy, significantly suppressing airway eosinophilia, IL-5 secretion and pathology following allergen challenge. We further demonstrate that the same cell population can alleviate autoimmune-mediated inflammatory events in the CNS, when transferred to uninfected mice undergoing myelin oligodendrocyte glycoprotein((p35-55))-induced EAE. In both allergic and autoimmune models, reduction of disease was achieved with B cells from helminth-infected IL-10(-/-) donors, indicating that donor cell-derived IL-10 is not required. Phenotypically, MLN B cells from helminth-infected mice expressed uniformly high levels of CD23, with follicular (B2) cell surface markers. These data expand previous observations and highlight the broad regulatory environment that develops during helminth infections that can abate diverse inflammatory disorders in vivo.

Original languageEnglish
Pages (from-to)1682-1696
Number of pages15
JournalEuropean Journal of Immunology
Volume40
Issue number6
DOIs
Publication statusPublished - Jun 2010

Keywords

  • Allergology
  • Autoimmunity
  • B cells
  • Immune regulation
  • Parasitology

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