In the present study, the roles of interleukin 12 (IL-12) and IL-18 and the
ir possible interaction during superantigen-induced responses were studied
by injection of staphylococcal enterotoxin B (SEB) into mice. These data su
ggest that the role of IL-12 in SEB-induced responses is limited to sustain
ing gamma interferon release by an IL-18-independent mechanism.