1887

Abstract

produces numerous bi-component toxins, e.g., Panton-Valentine leukocidin (Luk-PVL) and -haemolysin, which consist of type S and F proteins. Previous studies showed that Luk-PVL induces inflammatory mediator release from human granulocytes that might reflect the in-vivo effects, e.g., dermonecrosis by Luk-PVL. Clinical isolates not only harbour the two genes coding for Luk-PVL (S-protein: LukS-PVL, F-protein: LukF-PVL) but also the three genes encoding -haemolysin (S-protein: HlgA, HlgB; F-protein: HlgC). The interaction of all the possible potential toxins with human granulocytes was studied with regard to the generation of oxygen metabolites (chemiluminescence response), enzyme activity (-glucuronidase) and histamine release as well as interleukin (IL)-8 generation. The data clearly show that the individual subunits (S, F) differ in their activities. The following activities were obtained for the S components: LukS-PVL > HlgC > HlgA: the F components LukF-PVL and HlgB were similarly active. Thus, the toxins LukS-PVL/LukF-PVL and LukS-PVL/HlgB were the most potent inducers of inflammatory mediator release from human granulocytes, followed by HlgC/LukF-PVL and HlgC/HlgB and to a lesser degree by the toxins HlgA/LukF-PVL and HlgA/HlgB. The data indicate that class S components and class F components are interchangeable and give toxins with genuine biological activities.

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1997-06-01
2024-04-18
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References

  1. Prévost G., Supersac G., Colin D. A. The new family of leucotoxins from Stophylococcus aureus: structural and biological properties. In Freer J. H. et al. (eds) Bacterial protein toxins. Zentralbl Bakteriol Suppl 24 Stuttgart: Gustav Fischer Verlag; 1994284–293
    [Google Scholar]
  2. Supersac G., Prévost G., Piemont Y. Sequencing of leucocidin from Staphylococcus aureus P83 suggests that staphylococcal leucocidins and gamma-hemolysin are members of a single, two-component family of toxins. Infect Immun 1993; 61:580–587
    [Google Scholar]
  3. Guyonnet F., Plommet M. [Gamma hemolysin of Staphylococcus aureus: purification and properties.]. Ann Inst Pasteur 1970; 118:19–33
    [Google Scholar]
  4. Cooney J., Kienle Z., Foster T. J., O’Toole P. W. The gamma-hemolysin locus of Staphylococcus aureus comprises three linked genes, two of which are identical to the genes for the F and S components of leukocidin. Infect Immun 1993; 61:768–771
    [Google Scholar]
  5. Kamio Y., Rahmann A., Nariya H., Ozawa T., Izaki K. The two staphylococcal bi-component toxins, leukocidin and gamma-hemolysin, share one component in common. FEBS Lett 1993; 321:15–18
    [Google Scholar]
  6. Prévost G., Couppie P., Prévost P. Epidemiological data on Staphylococcus aureus strains producing synergohymenotropic toxins. J Med Microbiol 1995; 42:237–245
    [Google Scholar]
  7. Finck-Barbancon V., Prévost G., Piemont Y. Improved purification of leukocidin from Staphylococcus aureus and toxin distribution among hospital strains. Res Microbiol 1991; 142:75–85
    [Google Scholar]
  8. Criibier B., Prévost G., Couppie P., Finck-Barbancon P., Grosshans P., Piemont Y. Staphylococcus aureus leukocidin: a new virulence factor in cutaneous infections. An epidemiological and experimental study. Dermatology 1993; 185:175–180
    [Google Scholar]
  9. Hensler T., König B., Prévost G., Piemont Y., Roller M., König W. Leukotriene B4-generation and DNA fragmentation induced by leukocidin from Staphylococcus aureus: protective role of granulocyte-macrophage colony-stimulating factor (GM-CSF) and G-CSF on human neutrophils. Infect Immun 1994; 62:2529–2535
    [Google Scholar]
  10. König B., Koller M., Prévost G. Activation of human effector cells by different bacterial toxins (leukocidin, alveolysin, erythrogenic toxin A), generation of interleukin-8. Infect Immun 1994; 62:4831–4837
    [Google Scholar]
  11. König B., Prévost G., Piémont Y., König W. Effects of Staphylococcus aureus leucocidins on inflammatory mediator release from human granulocytes. J Infect Dis 1995; 171:607–613
    [Google Scholar]
  12. Prévost G., Cribier B., Couppié P. Panton-Valentine leucocidin and gamma-hemolysin from Staphylococcus aureus ATCC 49775 are encoded by distinct genetic loci and have different biological activities. Infect Immun 1995; 63:4121–4129
    [Google Scholar]
  13. Boyum A. Isolation of lymphocytes, granulocytes and macrophages. Scand J Immunol 1976 Suppl 5:9–15
    [Google Scholar]
  14. Bazzoni F., Cassatella M. A., Rossi F., Ceska M., Dewald B., Baggiolini M. Phagocytosing neutrophils produce and release high amounts of the neutrophil-activating peptide-1/interleukin 8. J Exp Med 1991; 173:771–774
    [Google Scholar]
  15. Alouf J. E., Knöll H., Köhler W. The family of mitogenic, shock-inducing and superantigenic toxins from staphylococci and streptococci. In Alouf J. E., Freer J. H. (eds) Source book of bacterial protein toxins London: Academic Press; 1991376–314
    [Google Scholar]
  16. Finck-Barbançon V., Duportail G., Meunier O., Colin D. A. Pore formation by a two-component leukocidin from Staphylococcus aureus within the membrane of human polymorphonuclear leukocytes. Biochim Biophys Acta 1993; 1182:275–282
    [Google Scholar]
  17. Colin D. A., Mazurier I., Sire S., Finck-Barbancon V. Interaction of the two components of leukocidin from Staphylococcus aureus with human polymorphonuclear leukocyte membranes: sequential binding and subsequent activation. Infect Immun 1994; 62:3184–3188
    [Google Scholar]
  18. Weiss S. J. Tissue destruction by neutrophils. N Engl J Med 1989; 320:365–376
    [Google Scholar]
  19. König W., Schonfeld W., Raulf M. The neutrophil and leukotrienes: role in health and disease. Eicosanoids 1990; 3:1–22
    [Google Scholar]
  20. Brom J., König W. Cytokine-induced (interleukin-3, -6, and -8 and tumour necrosis factor-β) activation and deactivation of human neutrophils. Immunology 1992; 75:281–285
    [Google Scholar]
  21. Baggiolini M. Neutrophil activation and the role of interleukin-8 and related cytokines. Int Arch Allergy Immunol 1992; 99:196–199
    [Google Scholar]
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