IL1B and lymphoma: In addition, a number of inflammatory cytokines, including 12-o-tetradecyl foppo-13-acetate, ceramide, hydrogen peroxide, lipopolysaccharide and okadaic acid, have been found to be able to induce cytokines TNFα and IL-1β production by lymphoma cells (U-937), fibroblasts (HFL1) and lung epithelial cells (A-549).