Genetics, cytokines and human infectious disease: lessons from weakly pathogenic mycobacteria and salmonellae

Nat Genet. 2002 Sep;32(1):97-105. doi: 10.1038/ng0902-97.

Abstract

Host genetic factors are important in determining the outcome of infections caused by intracellular pathogens, including mycobacteria and salmonellae, but until now have been poorly characterized. Recently, some individuals with severe infections due to otherwise weakly pathogenic mycobacteria (non-tuberculous mycobacteria or Mycobacterium bovis bacille Calmette-Guérin) or Salmonella species have been shown to be unable to produce or respond to interferon-gamma. This inability results from mutations in any of five genes encoding essential proteins of the type 1 cytokine cascade: interleukin-12p40, interleukin-12R beta 1, interferon-gamma R1, interferon-gamma R2 or STAT1. Ten syndromes have thus far been identified. Recent insights in genetically controlled host defense and susceptibility to mycobacterial disease are discussed.

Publication types

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

MeSH terms

  • Cytokines / genetics*
  • Cytokines / immunology
  • DNA-Binding Proteins / genetics
  • DNA-Binding Proteins / immunology
  • Genetic Predisposition to Disease
  • Humans
  • Interferon gamma Receptor
  • Interferon-gamma / genetics
  • Interferon-gamma / immunology
  • Interleukin-12 / genetics
  • Interleukin-12 / immunology
  • Interleukin-12 Subunit p40
  • Mycobacterium Infections / genetics*
  • Mycobacterium Infections / immunology
  • Phenotype
  • Protein Subunits
  • Receptors, Interferon / genetics
  • Receptors, Interferon / immunology
  • Receptors, Interleukin / genetics
  • Receptors, Interleukin / immunology
  • Receptors, Interleukin-12
  • STAT1 Transcription Factor
  • Salmonella Infections / genetics*
  • Salmonella Infections / immunology
  • Trans-Activators / genetics
  • Trans-Activators / immunology
  • Tumor Necrosis Factor-alpha / metabolism

Substances

  • Cytokines
  • DNA-Binding Proteins
  • Interleukin-12 Subunit p40
  • Protein Subunits
  • Receptors, Interferon
  • Receptors, Interleukin
  • Receptors, Interleukin-12
  • STAT1 Transcription Factor
  • STAT1 protein, human
  • Trans-Activators
  • Tumor Necrosis Factor-alpha
  • Interleukin-12
  • Interferon-gamma