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Applying an Inducible Expression System to Study Interference of Bacterial Virulence Factors with Intracellular Signaling
08:51

Applying an Inducible Expression System to Study Interference of Bacterial Virulence Factors with Intracellular Signaling

Published on: June 25, 2015

Masters, marionettes and modulators: intersection of pathogen virulence factors and mammalian death receptor

John Silke1, Elizabeth L Hartland

  • 1The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, Victoria 3050, Australia.

Current Opinion in Immunology
|June 27, 2013
PubMed

Insights

Pathogens target tumor necrosis factor receptor 1 (TNFR1) signaling during infection. This review explores how pathogens manipulate TNFR1 pathways and how the immune system evolved to counteract these attacks, with potential clinical applications.

Area of Science:

  • Immunology
  • Molecular Biology
  • Pathogen-Host Interactions

Background:

  • Tumor necrosis factor (TNF) and its receptor, TNFR1, are crucial for inflammatory responses during infection.
  • TNFR1 signaling is a key component of host defense and a common target for pathogen manipulation.

Purpose of the Study:

  • To review how pathogen virulence factors target TNFR1 signaling pathways.
  • To examine the evolution of TNFR1 signaling pathways in counteracting pathogen manipulation.
  • To explore the role of other TNF superfamily 'Death Receptors' (TRAIL-R, Fas) in host defense and potential clinical applications.

Main Methods:

  • Literature review of existing research on TNFR1 signaling and pathogen interactions.
  • Analysis of molecular mechanisms underlying pathogen manipulation of TNFR1 pathways.
  • Examination of evolutionary adaptations in TNFR1 signaling.

Main Results:

  • Pathogen virulence factors frequently target and disrupt TNFR1 signaling.
  • Host immune systems have evolved complex mechanisms, including death signaling, to counteract these manipulations.
  • TRAIL-R and Fas also play roles in immune responses to pathogens.

Conclusions:

  • Understanding TNFR1 pathway manipulation by pathogens is critical for host defense.
  • Evolutionary insights into TNFR1 signaling provide a basis for novel therapeutic strategies.
  • Translating knowledge of pathway inhibition into clinical applications holds promise for treating infectious diseases.

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