NFκB activation in infected and uninfected cells in the presence of selected compounds. Infected or mock infected MA104 cells were treated with indicated compounds at a final concentration of 7.5 μg/ml. Nuclear extracts were prepared 6 hours post-infection and activation of NFκB was assessed and quantified by commercial ELISA. Squares indicate DMSO only treated cultures and triangles indicate compound treated cultures. The y-axis is OD450 nm. The data were analyzed by two-way ANOVA (n = 3).