PTBP1 and pulmonary fibrosis: Xu et al. [6] demonstrated that miR-326 attenuates silica-induced pulmonary fibrosis by inhibiting inflammation and promoting autophagy by targeting TNFSF14 and PTBP1, whereas Tang et al. [7] found that SHIP-1 can act as a target for miR-155 to regulate the responses of endothelial cells in pulmonary fibrosis.