GKN2 and non-small cell lung carcinoma: The expression of GKN2 in NSCLC was analyzed from the GEPIA database (http://gepia.cancer‐pku.cn/index.html), and the results showed that the level of GKN2 expression in NSCLC was significantly lower than that of adjacent tissues in LUAD and LUSC (Figure 1D) and was related to the clinical stage (p = 9.61e‐05) (Figure 1E).