IL1A and cystic fibrosis: Indeed, the release of IL-1α and LIF was significantly increased (P<0.05) in CF-TG cells stimulated with P. aeruginosa products compared to resting CF-TG cells (4950±50 vs. 4200±140 pg/2×106 cells for IL-1α; 425±42 vs. 45±7 pg/2×106 cells for LIF).