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Updated: Sep 3, 2026

Quantifying the Cytotoxicity of Staphylococcus aureus Against Human Polymorphonuclear Leukocytes
12:27

Quantifying the Cytotoxicity of Staphylococcus aureus Against Human Polymorphonuclear Leukocytes

Published on: January 3, 2020

Cell-mediated immune reactions in vitro to cell walls and peptidoglycan from Staphylococcus aureus

S P Targowski, D T Berman

    Zeitschrift Fur Immunitatsforschung, Experimentelle Und Klinische Immunologie
    |July 1, 1975
    PubMed

    Insights

    Migration inhibition factor (MIF) production was stimulated by Staphylococcus aureus components in sensitized guinea pigs. Specific cell wall subunits, but not all, triggered this immune response.

    Area of Science:

    • Immunology
    • Microbiology

    Background:

    • Migration inhibition factor (MIF) is a key immune mediator.
    • Staphylococcus aureus infections trigger immune responses.

    Purpose of the Study:

    • To investigate the components of Staphylococcus aureus that stimulate MIF production.
    • To understand the specificity of MIF induction by bacterial cell wall subunits.

    Main Methods:

    • Peritoneal exudate (PE) cells from sensitized guinea pigs were cultured with staphylococcal components.
    • MIF activity was measured by the inhibition of alveolar macrophage migration.
    • Control experiments used tuberculin-sensitive guinea pigs and tuberculin.

    Main Results:

    • Staphylococcal cell walls, peptidoglycan complexes, and teichoic acid-peptidoglycan fragments stimulated MIF production.
    • Peptidoglycan fragments and teichoic acid alone were ineffective in stimulating MIF.
    • MIF production was specific to staphylococcus-sensitive PE cells.

    Conclusions:

    • Specific components of Staphylococcus aureus cell walls are potent stimulators of MIF production.
    • The immune response to staphylococcal components involves MIF, with defined roles for different subunits.
    • Further research into these specific components could inform therapeutic strategies.

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