Fig. 7From: Every road leads to Rome: therapeutic effect and mechanism of the extracellular vesicles of human embryonic stem cell-derived immune and matrix regulatory cells administered to mouse models of pulmonary fibrosis through different routesA549 cells were co-cultured with IMRC-EVs. A549 cells were incubated with PKH26 fluorescently labeled IMRC-EVs for 4 h. A549 cells were stained for actin (phalloidin, green) and nuclei (DAPI, blue). Scale bar, 50 μmBack to article page