Fig 2: RT-qPCR. The relative expression levels of (A) IL-1 and (B) IL-6 mRNA in HeLa cells treated with 10 µg/ml PM2.5 were significantly higher than those in NC group (P<0.05). *P<0.05.

Fig 3: Western blotting. Compared with HeLa cells in NC group, the relative expression levels of (A) IL-1 and (B) IL-6 proteins in HeLa cells treated with 10 µg/ml PM2.5 were significantly increased. (C) Western blots of IL-1 and IL-6 protein in the two groups of cells are shown. *P<0.05.