The quantitative PCR assay showed that expression of 11 lncRNAs from the selected 210 lncRNAs was significantly altered by P53 re‐expression (fold change ≥ 1.5), and the fold change was contrary to the above microarray data of lung adenocarcinoma tissues in which p53 was deleted (Figure 3B). This evidence concerns the gene TP53 and lung adenocarcinoma.