Microbial metalloproteases and pathogenesis

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Published on: March 4, 2020

S Miyoshi1, S Shinoda

  • 1Faculty of Pharmaceutical Sciences, Okayama University, Japan.

Microbes and Infection
|March 16, 2000
PubMed

Insights

Zinc metalloproteases from pathogens cause tissue damage in local infections and enhance virulence in systemic infections by degrading proteins. Examples include toxins from Clostridium, Bacteroides, and Bacillus.

Area of Science:

  • Microbiology
  • Pathology
  • Biochemistry

Background:

  • Human pathogenic microorganisms produce zinc metalloproteases with diverse pathological effects.
  • These enzymes play roles in both local and systemic infections.

Purpose of the Study:

  • To summarize the pathological actions of microbial zinc metalloproteases.
  • To highlight their role as virulence factors in infectious diseases.

Main Methods:

  • Literature review of studies on microbial metalloproteases and their functions.
  • Analysis of the mechanisms of tissue damage and systemic effects.

Main Results:

  • In local infections, proteases cause necrosis, hemorrhage, and edema by degrading tissue components and inflammatory mediators.
  • In systemic infections, they act as virulence factors by proteolyzing plasma proteins.
  • Notable examples include Clostridial neurotoxins, Bacteroides fragilis enterotoxin, and Bacillus anthracis lethal factor.

Conclusions:

  • Zinc metalloproteases are key contributors to the pathogenicity of various microorganisms.
  • Understanding their mechanisms is crucial for developing therapeutic strategies against infectious diseases.

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