Fig. 4: The effects of MlEVs on airway epithelial cells.

a Levels of IL-8 released from A549 cells followed by treatment with Dex or MlEVs in the presence of LPS. Data are presented in box plots, n = 5. P values were obtained by one-way ANOVA with Bonferroni’s post hoc test. b Phosphorylation of p65 in the cells. c RNA composition in the cells. d Expression of miRNAs in the cells evaluated by microarray analysis.