CE exposure results in the cleavages of tight junctional proteins (ZO-1, ZO-2 and occluding) and adherens junctional proteins (E-cadherin and FAK).

<p>Cell lysates from BEAS-2B cells were analyzed by western blotting with anti-ZO-1, ZO-2 and Occludin (A) and E-cadherin and FAK (B) antibodies at different concentration of CE for 4 hours. The densities of protein bands were determined by densitometry and the data represent a fold change from the control density. The data are representative of three independent experiments. Data are shown as a mean ± SD. * <i>p</i> < 0.05, ** <i>p</i> < 0.01 vs control by a one-way ANOVA with HSD test.