Figure 4: Nasal epithelial cell-derived exosomes modulate the properties of DCs. Human peripheral DCs were cultured in the presence of the nasal epithelial cell-derived exams at the indicated concentrations for 5 days. The cells were analyzed by flow cytometry. The bars indicate the percentage of cells of CD80 (A), CD86 (B) and MHCI (C). *, p<0.05, compared with the "0 ng" group. The data were presented as mean ± SD from 3 experiments. LPS: DCs were stimulated by LPS at 50 ng/ml in culture.