Fig. 2

MiR-146a-5p delivered by hucMSC-EVs is functionally relevant. A Cell viability of different treatment groups was determined by the CCK-8 assay (n = 3). MiR-146a-5p expression in mouse lung tissues (B) and BEAS-2B cells (C) was visualized by qRT–PCR (n = 3). The data are presented as the mean ± SD of individuals included in each group and representative of at least three independent experiments. *P < 0.05; **P < 0.01; and ***P < 0.001