A study by Haiping Xiao reported that miR-7-5p regulates target neuro-oncological ventral antigen 2 (NOVA2) expression to suppress tumor metastasis of non-small cell lung cancer (NSCLC), and when NOVA2 was overexpressed, the miR-7-5p-mediated inhibitory effect on lung cancer cells was reversed [33]. This evidence concerns the gene NOVA2 and lung cancer.