TGFB1 and idiopathic pulmonary fibrosis: Figure 3 shows that miR-200c-3p, miR-16-5p, miR-21-5p, miR-126-3p and miR-34-5p were strongly associated to several pathways related to aging/senescence, inflammatory response, cancer and lung fibrosis (Figure 3A–D). In particular, transforming growth factor beta (TGF-β) signaling pathway (miR-200c-3p, miR-16-5p, miR-21-5p and miR-34-5p) and Wnt signaling pathway (miR-200c-3p, miR-16-5p and miR-34-5p) are known pathways directly associated to IPF and lung fibrosis in literature [38,39].