MUC1 and gastric adenocarcinoma: Here, analysis of the TCGA gastric adenocarcinoma dataset demonstrated that MUC1 expression is significantly increased in (i) GCs vs normal gastric tissues (Supplementary Fig. S1A) and (ii) EBVaGCs vs EBV-negative GCs without chromosomal instability (CIN) and microsatellite instability (MSI) (Fig. 1A).