Others, such as CPNE8, MAGED1, RNF144A, SOX14, ACOT13 (cg15486740), EID1 (cg00481239), RPS4X (cg08859156), and TTRAP (cg15486740), have been identified in various tumors other than GC (Kamio et al., 2010; Zeng et al., 2012; Zhou et al., 2013; Kuang et al., 2017; Stanisavljevic et al., 2017; Liu X. et al., 2018; Tosic et al., 2018; Nagasawa et al., 2019; Yang et al., 2019). This evidence concerns the gene TDP2 and gastric cancer.