The TCGA database analysis of the expression of 65 cuproptosis-related genes revealed that compared with normal patients, 16 genes (NLRP3, PDHA1, CDKN2A, GCSH, LOXL2, ULK1, VEGFA, ATOX1, DNA2, NTHL1, POLE, POLD1, PPRAT, RTEL1, CDK5RAP1, HSPA1B) were upregulated in READ patients. Here, POLD1 is linked to reading.