Regulation of the development of the hepatic B cell compartment during Schistosoma mansoni infection

J Immunol. 2013 Oct 15;191(8):4202-10. doi: 10.4049/jimmunol.1301357. Epub 2013 Sep 13.

Abstract

During infection with the helminth parasite Schistosoma mansoni, Ab regulates hepatic inflammation, and local production of Ig in the liver appears to play a role in this process. Exploring the development of the B cell response during infection, we found that parasite-specific IgG1-secreting plasma cells appeared first in the hepatic and mesenteric lymph nodes (LNs) and then at later times in the spleen, liver, and bone marrow. The LN B cell population peaked between weeks 10 and 12 of infection, and then contracted at a time that coincided with the expansion of the hepatic IgG1(+) B cell compartment, suggesting that B cells migrate from LNs to liver. CXCL9 and -16 expression in the liver increased during the time frame of B cell recruitment. Expression of the CXCL16 receptor CXCR6 was increased on B cells within the hepatic LNs, but not the mesenteric LNs. CXCR3, the receptor for CXCL9, was broadly expressed on IgG1(+) B cells in LNs and liver during infection. Increased hepatic expression of CXCL9 and -16 failed to occur if the IL-10R was blocked in vivo, an intervention associated with decreased liver B cell infiltration and the development of severe disease. Hepatic LN IgG1(+) cells migrated toward CXCL9 and -16 in vitro and to the liver in a pertussis toxin-sensitive fashion. Our data suggest that the coordinated expression of CXCL9 and -16 in the liver and of CXCR6 and CXCR3 on responding B cells within the hepatic LNs underpins establishment of the hepatic B cell infiltrate during chronic schistosomiasis.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adoptive Transfer
  • Animals
  • B-Lymphocytes / immunology*
  • Bone Marrow / immunology
  • Cell Movement / immunology
  • Chemokine CXCL16
  • Chemokine CXCL6 / biosynthesis
  • Chemokine CXCL9 / biosynthesis
  • Immunoglobulin G / immunology*
  • Inflammation / immunology
  • Liver / cytology
  • Liver / immunology*
  • Lymph Nodes / cytology
  • Lymph Nodes / immunology
  • Lymphocyte Activation / immunology
  • Mice
  • Mice, Inbred BALB C
  • Mice, Transgenic
  • Pertussis Toxin
  • Receptors, CXCR / biosynthesis
  • Receptors, CXCR3 / biosynthesis
  • Receptors, CXCR6
  • Receptors, Interleukin-10 / biosynthesis
  • Schistosoma mansoni / immunology*
  • Schistosomiasis mansoni / immunology*
  • Schistosomiasis mansoni / parasitology
  • Spleen / cytology
  • Spleen / immunology

Substances

  • Chemokine CXCL16
  • Chemokine CXCL6
  • Chemokine CXCL9
  • Cxcl16 protein, mouse
  • Cxcl9 protein, mouse
  • Cxcr3 protein, mouse
  • Cxcr6 protein, mouse
  • Immunoglobulin G
  • Receptors, CXCR
  • Receptors, CXCR3
  • Receptors, CXCR6
  • Receptors, Interleukin-10
  • Pertussis Toxin