Fig. 1From: d-Limonene inhibits the occurrence and progression of LUAD through suppressing lipid droplet accumulation induced by PM2.5 exposure in vivo and in vitroLUAD cells became more aggressive and WT mice got pulmonary fibrosis after PM2.5 exposure. A–C PM2.5 treatment increased the migration, colony formation and invasion of A549 and H1975 cells according to the wound healing assays, plate colony formation and Transwell experiments. D Masson’s trichrome staining showed that pulmonary fibrosis caused by PM2.5 exposure in C57BL/6 mice (N = 6). *P < 0.05; **P < 0.01; ***P < 0.001Back to article page