CXCL13 promotes isotype-switched B cell accumulation to the central nervous system during viral encephalomyelitis

Brain Behav Immun. 2016 May:54:128-139. doi: 10.1016/j.bbi.2016.01.016. Epub 2016 Jan 18.

Abstract

Elevated CXCL13 within the central nervous system (CNS) correlates with humoral responses in several neuroinflammatory diseases, yet its role is controversial. During coronavirus encephalomyelitis CXCL13 deficiency impaired CNS accumulation of memory B cells and antibody-secreting cells (ASC) but not naïve/early-activated B cells. However, despite diminished germinal center B cells and follicular helper T cells in draining lymph nodes, ASC in bone marrow and antiviral serum antibody were intact in the absence of CXCL13. The data demonstrate that CXCL13 is not essential in mounting effective peripheral humoral responses, but specifically promotes CNS accumulation of differentiated B cells.

Keywords: Antibody secreting cells; B cells; CXCL13; Central nervous system; Memory B cells; Neuroimmunology.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • B-Lymphocytes / immunology*
  • B-Lymphocytes / pathology
  • Cell Movement / immunology
  • Central Nervous System / immunology*
  • Chemokine CXCL13 / immunology*
  • Coronavirus Infections / immunology*
  • Coronavirus Infections / pathology
  • Encephalomyelitis / immunology*
  • Encephalomyelitis / pathology
  • Female
  • Immunoglobulin Class Switching / immunology
  • Lymphocyte Activation
  • Male
  • Mice
  • Mice, Inbred C57BL
  • T-Lymphocytes, Helper-Inducer / immunology

Substances

  • Chemokine CXCL13
  • Cxcl13 protein, mouse