[Retracted] PM2.5 Exposure Induces Lung Injury and Fibrosis by Regulating Ferroptosis via TGF-β Signaling

Figure 4

PM2.5 promotes ferroptosis in primary mouse lung epithelial cells. (a, b) The A549 cells were treated with PM2.5 at the indicated doses. (a) The cell viability was measured by CCK-8 assays. (b) The ROS levels of were analyzed by flow cytometry analysis. (c–i) The primary mouse lung epithelial cells were treated with PM2.5 at the indicated doses. (c) The cell viability was measured by CCK-8 assays. (d) The ROS levels were analyzed by flow cytometry analysis in the cells. (e) The expression of GPX4 and SLC7A11 was measured by Western blot. (f–i) The levels of iron, Fe²⁺, MDA, and GSH were detected in the cells. .

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