CD8A and gastric cancer: Among the above immune cells, myeloid dendritic cells, endothelial cells, and fibroblasts were positively correlated with the risk score (cor > 0.3 and p < 0.05), whereas CD8+ T cells and natural killer cells showed a mild negative correlation with the risk score (Fig. S5E) in both datasets, indicating the formation of a suppressive TME unfavorable for immunotherapy15 in BATF2, MYB and CD36 based high-risk GC patients.