B cells as a critical node in the microbiota-host immune system network

Immunol Rev. 2014 Jul;260(1):50-66. doi: 10.1111/imr.12179.

Abstract

Mutualism with our intestinal microbiota is a prerequisite for healthy existence. This requires physical separation of the majority of the microbiota from the host (by secreted antimicrobials, mucus, and the intestinal epithelium) and active immune control of the low numbers of microbes that overcome these physical and chemical barriers, even in healthy individuals. In this review, we address how B-cell responses to members of the intestinal microbiota form a robust network with mucus, epithelial integrity, follicular helper T cells, innate immunity, and gut-associated lymphoid tissues to maintain host-microbiota mutualism.

Keywords: B lymphocytes; IgA; gut-associated lymphoid tissue; innate immunity; intestinal barrier; microbiota.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Autophagy
  • B-Lymphocyte Subsets / immunology*
  • B-Lymphocyte Subsets / metabolism
  • Cellular Microenvironment / immunology
  • Endoplasmic Reticulum Stress
  • Fatty Acids / metabolism
  • Histone Deacetylases / metabolism
  • Host-Pathogen Interactions / immunology*
  • Humans
  • IgA Deficiency / genetics
  • IgA Deficiency / immunology
  • IgA Deficiency / microbiology
  • Immune System / physiology*
  • Immunity, Innate
  • Immunity, Mucosal
  • Immunoglobulin A / immunology
  • Immunologic Deficiency Syndromes / genetics
  • Immunologic Deficiency Syndromes / immunology
  • Immunologic Deficiency Syndromes / microbiology
  • Intestinal Mucosa / immunology
  • Intestinal Mucosa / microbiology
  • Intestines / immunology
  • Intestines / microbiology
  • Microbiota / immunology*
  • Mucus / microbiology
  • Mucus / physiology
  • Peyer's Patches / immunology
  • Symbiosis
  • T-Lymphocyte Subsets / immunology
  • T-Lymphocyte Subsets / metabolism

Substances

  • Fatty Acids
  • Immunoglobulin A
  • Histone Deacetylases

Supplementary concepts

  • Immune Deficiency Disease