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Pathogenic trickery: deception of host cell processes

L A Knodler1, J Celli, B B Finlay

  • 1Biotechnology Laboratory, Room 237-6174 University Boulevard, University of British Columbia, Vancouver, British Columbia, Canada, V6T 1Z3.

Nature Reviews. Molecular Cell Biology
|August 3, 2001
PubMed

Insights

Microbial pathogens employ virulence factors to disrupt host cells, mimicking host molecules to cause disease. Understanding these molecular mimicry strategies is key to combating infections.

Area of Science:

  • Microbiology
  • Molecular Biology
  • Pathogenesis

Background:

  • Microbial pathogens cause diverse human diseases.
  • Pathogenesis involves virulence factors interacting with host molecules.
  • These interactions often disrupt host cellular processes like cytoskeletal dynamics and vesicle transport.

Purpose of the Study:

  • To elucidate the mechanisms by which microbial virulence factors usurp host cellular processes.
  • To understand how molecular mimicry by pathogens contributes to disease.
  • To identify key interactions between pathogen virulence factors and host molecules.

Main Methods:

  • Investigating the molecular interactions between specific microbial virulence factors and host cell components.
  • Utilizing cell-based assays to observe the effects of virulence factors on host cytoskeletal dynamics and vesicle trafficking.
  • Employing biochemical and genetic approaches to identify the host targets of pathogen-derived molecules.

Main Results:

  • Demonstrated that microbial virulence factors frequently mimic host molecules.
  • Showcased how these mimicked molecules interfere with essential host functions.
  • Identified specific instances of virulence factors disrupting cytoskeletal organization and vesicle-mediated transport.

Conclusions:

  • Virulence factors are critical for pathogen success, often by hijacking host machinery.
  • Molecular mimicry is a common and effective strategy employed by pathogens.
  • Targeting these virulence factor-host interactions offers potential therapeutic avenues.

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