Fig. 5

IL-1β induced IL-6 production in MCF7_TG2 cells through the IRAK1, NF-kB, JNK, and PI3K signaling pathway. a MCF7_TG2 cells were treated with IL-1β (10 ng/ml) in the presence of IRAK1/4 inhibitor (20 μM), a NF-kB inhibitor (Bay11-7082, 10 μM), a JNK inhibitor (SP600125, 10 μM), an ERK inhibitor (PD98059, 10 μM), a p38 MAPK inhibitor (SB209580, 10 μM), or a PI3K inhibitor (LY294002, 10 μM) for 48 h. IL-6 levels in culture supernatants were measured by ELISA. b MCF7_Cont and MCF7_TG2 cells were treated with IL-1β (10 ng/ml) for the indicated times. Phospho-p65, p65, Ik-Bα, phospho-JNK, and JNK were detected by Western blot. c MCF7_Cont and MCF7_TG2 cells were treated with IL-1β (10 ng/ml) for the indicated times. IRAK1, IRAK2, and TRAF6 were detected by Western blot. d MCF7_Cont and MCF7_TG2 cells were co-transfected with p3kB-Luc and pRL-TK reporter constructs for 24 h then treated with IL-1β (10 ng/nl) for 18 h. All data shown are representative of three independent experiments