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  • Title: In vitro stimulation of human lymphocytes by alpha, beta and delta toxins and toxoids of Staphylococcus aureus.
    Author: Prokesová L, Lochman O, John C.
    Journal: J Hyg Epidemiol Microbiol Immunol; 1992; 36(3):327-36. PubMed ID: 1293216.
    Abstract:
    Alpha, beta and delta toxins of Staphylococcus aureus stimulate human peripheral blood lymphocytes to blastic transformation and formation of IgM, IgG and IgA. The toxins are efficient at concentrations that are not toxic for the cells in culture. A dose of a toxin suitable for stimulation is 100 ng/ml but a stimulation can be observed also at 10 ng/ml, in the case of Ig formation even at a concentration of 1 ng/ml. Toxoids are approximately as effective to elicit blastic transformation as the toxins themselves, their efficiency to stimulate Ig formation being somewhat lower but significant. Alpha and delta toxins and toxoids at the appropriate concentration appear to act as medium-strength polyclonal activators of lymphocytes. Beta toxin and its toxoid are weak polyclonal activators.
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