We then evaluated the expression of this miRNA in NAFs and in the A549, H838, HCC827 and H1299 NSCLC cell lines, revealing it to be significantly down‐regulated therein, whereas it was up‐regulated in TGF‐β treated NAFs (TGF‐β‐NAFs) relative to the levels in NAFs (Figure 1I). The gene discussed is TGFB1; the disease is non-small cell lung carcinoma.