Fig. 7
From: Role of PM2.5 in the development and progression of COPD and its mechanisms
Western blot examination for MMP9, MMP12, and TGF-β1 protein levels expression in lungs sections induced by PM2.5/CS exposure. The expressions of MMP9, MMP12, and TGF-β1 were analyzed with western blotting (a) and (b-d) the proteins expression were evaluated. Data are expressed as mean ± SD (n = 6). *P < 0.05, ** P < 0.01, *** P < 0.001 vs control group; #P < 0.05, ## P < 0.01, ### P < 0.001 vs PM2.5 + CSE-exposed group