Figure 4

Inhibition of cellular IKKβ mediated NF-κB activity. HepG2 cells stably transfected with the NF-κB–luciferase gene were stimulated with TNF-α pre-incubated with the indicated concentrations of 1 and other three hit compounds (compounds 3, 9 and 10). Cell lysates were analyzed for luciferase activity to determine the extent of NF-κB inhibition. Error bars represent the standard deviations of the results from three independent experiments.