Figure 2: Generation of nasal mucosal cell-derived exosomes. A-B, the representative EM pictures show the nasal epithelial cell-derived exosomes carrying Derp1 and SEB (A) Panel B is an isotype control. C, proteins were extracted from purified exosomes and analyzed by Western blotting. The gel pictures show immune blots of Derp1 or SEB. The β-actin immune blots were used as internal control. D, bars indicate the summarized data of panel C. The data were presented as mean ± SD (from 3 experiments).