The Tn neoantigen (GalNAcα1-O-Ser/Thr) and its sialylated form (sialyl Tn, STn) are tumor-associated carbohydrate antigens (TACAs) expressed in a broad range of human cancers, including those in the colorectum, breast, prostate, lung, ovary, cervix, and pancreas [1, 2]. This evidence concerns the gene EEF1A2 and cancer.