In order to explore the expression pattern of DEK in GC, we analyzed the expression of DEK in GC (Figure 1A) in the TCGA database, and the same conclusion was found on the website (http://ualcan.path.uab.edu/cgi-bin/ualcan-res.pl, accessed on 19 October 2021) (Figure 1B). Here, DEK is linked to gastric cancer.