As previously reported, ADAM metallopeptidase with thrombospondin type 1 motif, 9 (ADAMTS9) antisense RNA 2 (ADAMTS9-AS2) has been identified as a novel tumor suppressor, which may inhibit the proliferation and migration of non-small cell lung cancer cells (NSCLC) [16]. The gene discussed is ADAMTS9; the disease is non-small cell lung carcinoma.