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Recombinant Staphylococcus aureus exfoliative toxins are not bacterial superantigens.


ABSTRACT: Staphylococcal scalded-skin syndrome is an exfoliative dermatitis characterized by the separation of the epidermis at the stratum granulosum. This disruption is mediated by one of two Staphylococcus aureus exotoxins, exfoliative toxins A and B (ETA and ETB). Both ETA and ETB have been reported to be bacterial superantigens. A controversy exists, however, as other data indicate that these exotoxins are not superantigens. Here we demonstrate that recombinant exfoliative toxins produced in Escherichia coli do not act as T-cell mitogens and thus are not bacterial superantigens. These data fit the clinical profile of the disease, which is not associated with the classic symptoms of a superantigen-mediated syndrome.

SUBMITTER: Plano LR 

PROVIDER: S-EPMC97528 | biostudies-literature | 2000 May

REPOSITORIES: biostudies-literature

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Recombinant Staphylococcus aureus exfoliative toxins are not bacterial superantigens.

Plano L R LR   Gutman D M DM   Woischnik M M   Collins C M CM  

Infection and immunity 20000501 5


Staphylococcal scalded-skin syndrome is an exfoliative dermatitis characterized by the separation of the epidermis at the stratum granulosum. This disruption is mediated by one of two Staphylococcus aureus exotoxins, exfoliative toxins A and B (ETA and ETB). Both ETA and ETB have been reported to be bacterial superantigens. A controversy exists, however, as other data indicate that these exotoxins are not superantigens. Here we demonstrate that recombinant exfoliative toxins produced in Escheric  ...[more]

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