Hsa‐mir‐9 was reported to play an oncogenic role in the proliferation, invasion, and migration of NSCLC cells through mechanisms such as regulating SOX7 23, eukaryotic translation initiation factor 5A2 25, FoxO1 26, epithelial‐to‐mesenchymal transition and the signal transduction pathway 27. The gene discussed is FOXO1; the disease is non-small cell lung carcinoma.