Effect of SDZ MRL 953 on serum levels of proinflammatory cytokines in cancer patients. Serum concentrations of (A) TNF-α, (B) IL-1β, (C) IL-8, and (D) IL-6 in patients after the first of seven injections of (•) SDZ MRL 953 (34.2 and 39.6 μg/kg, n = 6) or (▿) vehicle control (n = 5). Data are expressed as the mean values ± SEM.