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Quantifying the Cytotoxicity of Staphylococcus aureus Against Human Polymorphonuclear Leukocytes
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Evasion of Neutrophil Killing by Staphylococcus aureus

Will A McGuinness1, Scott D Kobayashi2, Frank R DeLeo3

  • 1Laboratory of Bacteriology, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 903 South 4th Street, Hamilton, MT 59840, USA. will.mcguinness@nih.gov.

Pathogens (Basel, Switzerland)
|March 22, 2016
PubMed

Insights

Staphylococcus aureus infections are fought by neutrophils, a key part of the innate immune system. However, S. aureus produces molecules that specifically target and inhibit these crucial neutrophil functions.

Area of Science:

  • Immunology
  • Microbiology
  • Bacterial Pathogenesis

Background:

  • Staphylococcus aureus is a versatile pathogen causing infections from skin to pneumonia.
  • Polymorphonuclear leukocytes (neutrophils) are critical for combating S. aureus.
  • Current understanding of S. aureus-host immune interactions remains incomplete.

Purpose of the Study:

  • To review the role of neutrophils in S. aureus infection defense.
  • To highlight bacterial molecules that counteract neutrophil functions.

Main Methods:

  • Literature review of S. aureus-neutrophil interactions.
  • Analysis of bacterial virulence factors targeting neutrophils.

Main Results:

  • Neutrophils are essential innate immune cells against S. aureus.
  • S. aureus possesses specific molecules that inhibit neutrophil activity.
  • These bacterial molecules interfere with key neutrophil functions.

Conclusions:

  • Neutrophils play a vital role in controlling S. aureus infections.
  • S. aureus has evolved strategies to evade neutrophil-mediated immunity.
  • Understanding these bacterial evasion mechanisms is crucial for developing new therapies.
Keywords:
PMNStaphylococcus aureusinnate immunityneutrophilphagocytosis

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