Next, we detected the expression of TdIF1 in three human lung cancer cell lines, namely, A549 (alveolar epithelial, adenocarcinoma; NSCLC), H1299 (metastatic lymph node carcinoma; NSCLC), and H1975 (epithelial, adenocarcinoma, NSCLC). This evidence concerns the gene DNTTIP1 and non-small cell lung carcinoma.