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Updated: Jul 16, 2026
12:27
Quantifying the Cytotoxicity of Staphylococcus aureus Against Human Polymorphonuclear Leukocytes
Published on: January 3, 2020
Diversity in Staphylococcus aureus enterotoxins
Damien Thomas1, Seemay Chou, Olivier Dauwalder
1Centre National de Référence des Staphylocoques, INSERM E0230, IFR62, Université Lyon 1, Lyon, France.
Chemical Immunology and Allergy
|March 21, 2007
Summary
Staphylococcus aureus toxins, like staphylococcal enterotoxins (SEs) and toxic shock syndrome toxin-1 (TSST-1), are superantigens that activate immune cells. These toxins are implicated in both infections and potentially noninfectious diseases.
Area of Science:
- Microbiology
- Immunology
- Toxicology
Background:
- Staphylococcus aureus pathogenicity involves toxins such as staphylococcal enterotoxins (SEs) and toxic shock syndrome toxin-1 (TSST-1).
- These toxins function as superantigens, broadly activating immune cells like T cells and mononuclear cells.
- 19 distinct SEs and related toxins have been identified in S. aureus, with variations in structure and activity.
Purpose of the Study:
- To review recent findings on staphylococcal superantigens.
- To explore the impact of these superantigens on human diseases, including infectious and noninfectious conditions.
Main Methods:
- Literature review focusing on recent research.
- Analysis of the biochemical and biological properties of staphylococcal superantigens.
- Examination of the genetic prevalence of toxin-encoding genes in S. aureus isolates.
Main Results:
- Most human S. aureus isolates carry genes for at least one superantigen.
- SEs and TSST-1 are suspected to be produced during S. aureus colonization and infection.
- Superantigen production may contribute to classical staphylococcal infections and noninfectious diseases.
Conclusions:
- Staphylococcal superantigens are key virulence factors with broad immune-modulating effects.
- The role of SEs extends beyond typical infections, potentially influencing noninfectious disease pathogenesis.
- Further research into staphylococcal superantigens is crucial for understanding their full impact on human health.
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