(a) SW480 cells were transfected with NF-κB-luciferase wild-type (NF-κB-luc-WT) or mutant with NF-κB binding sites deleted (NF-κB-luc-Mut) (200ng) and the internal control renilla (100ng). After 16-18h cells were treated for 6h with L18-MDP (1μg/ml) or for 2h with TNF-α (50ng/ml) and harvested for luciferase assays. The data are derived from triplicate readings.
(b) SW480 cells were transfected with NF-κB-luciferase wild-type (NF-κB-luc-WT) or mutant with NF-κB binding sites deleted (NF-κB-luc-Mut) (200ng) and the internal control renilla (100ng). After 16-18h cells were treated for 6h with L18-MDP (1μg/ml) or for 2h with TNF-α (50ng/ml) in the presence of WFA (2h) or DMSO control (2h) and harvested for luciferase assays. The data are derived from triplicate readings. * = P<0.05, ns = not significant.