The relative mRNA expression of ITGA7 was increased in NCI‐H1650 (P < 0.001), A549 (P < 0.001), HCC‐827 (P < 0.05), and NCI‐H1299 (P < 0.01) cell lines but similar in NCI‐H358 cell line compared with human normal lung epithelial cell line BEAS‐2B (P > 0.05; Figure 3A). The gene discussed is ITGA7; the disease is hepatocellular carcinoma.