CTLA4 and neoplasm: Figures 7B–E shows that EMC2 expression is significantly positively correlated with PD-L1, CTLA-4, and TIM-3 in BRCA, regulated by purity. From the expression correlation analysis, we also found that EMC2 was significantly positively correlated with PD-L1, CTLA-4, and TIM-3 in BRCA (Figures 7F–I). These results indicate that tumor immune escape may involve the EMC2-related carcinogenesis of BRCA.