Figure 3
ZO-1, Claudin-1 and Occludin mRNA levels in Caco-2 monolayers after 6 h of exposure to different probiotic and gliadin treatments. Panels A, B, and C report ZO-1, Claudin-1 and Occludin mRNA levels in Caco-2 monolayers after 6 h of exposure to viable L.GG (108 CFU/ml), heat killed L.GG (L.GG-HK) and L.GG conditioned medium (L.GG-CM). Data were analyzed by Kruskal-Wallis analysis of variance and Dunn’s Multiple Comparison Test. (*) P < 0.05 compared to control cells. Panels D, E and F report ZO-1, Claudin-1 and Occludin mRNA levels in Caco-2 monolayers after 6 h of exposure to gliadin (1 mg/ml) alone or in combination with viable L.GG, L.GG-HK and L.GG-CM. Data were analyzed by Kruskal-Wallis analysis of variance and Dunn’s Multiple Comparison Test. (*) P < 0.05 compared to gliadin treated cells. All data represent the results of three different experiments (mean ± SEM).