RNA-seq data of 1093/556/538 patients with lung cancer (LC), lung adenocarcinoma (LA) or lung squamous cell carcinoma (LSCC) were extracted from the TCGA database, and the expression of NEU1 in tumors of lung and paracancer tissue samples was analyzed using R language, as shown in Fig. 2. The gene discussed is NEU1; the disease is lung carcinoma.