Manipulation of Autophagy by Bacterial Pathogens Impacts Host Immunity

Curr Issues Mol Biol. 2018:25:81-98. doi: 10.21775/cimb.025.081. Epub 2017 Sep 6.

Abstract

Autophagy is a highly conserved catabolic process, degrading unnecessary or damaged components in the eukaryotic cell to maintain cellular homeostasis, but it is also an intrinsic cellular defence mechanism to remove invading pathogens. A crosstalk between autophagy and innate or adaptive immune responses has been recently reported, whereby autophagy influences both, innate and adaptive immunity like the production and secretion of pro-inflammatory cytokines or MHC class II antigen presentation to T cells. Pathogenic bacteria have evolved diverse strategies to manipulate autophagy, mechanisms that also impact host immune responses at different levels. Here we discuss the influence of autophagy on self-autonomous, innate and adaptive immunity and then focus on how bacterial mechanisms that shape autophagy may impact the host immune system.

Publication types

  • Review

MeSH terms

  • Adaptive Immunity
  • Animals
  • Autophagosomes / immunology
  • Autophagosomes / microbiology
  • Autophagy / genetics*
  • Cytokines / genetics
  • Cytokines / immunology
  • Gene Expression Regulation
  • Gram-Negative Bacteria / growth & development
  • Gram-Negative Bacteria / immunology*
  • Gram-Positive Bacteria / growth & development
  • Gram-Positive Bacteria / immunology*
  • Histocompatibility Antigens Class II / genetics
  • Histocompatibility Antigens Class II / immunology
  • Host-Pathogen Interactions*
  • Humans
  • Immunity, Innate*
  • NLR Proteins / genetics
  • NLR Proteins / immunology
  • Signal Transduction
  • T-Lymphocytes / immunology*
  • T-Lymphocytes / microbiology
  • Toll-Like Receptors / genetics
  • Toll-Like Receptors / immunology

Substances

  • Cytokines
  • Histocompatibility Antigens Class II
  • NLR Proteins
  • Toll-Like Receptors