Using Timer 2.0 Web data server from the TCGA database, we identified that COAD cancer shows significantly higher levels of CD8+ T cell infiltration (p = 1.74 × 10−6) (Figure 6B(i)) compared to CESC, LUAD, and PAAD (Figure 6C(i–iii)). Here, CD8A is linked to colon adenocarcinoma.