TNFRSF18 and pancreatic adenocarcinoma: Similarly, in PAAD (Figure 6B-E), SLC39A4 expression displayed positive correlations with immune factors such as TNFRSF18, TNFRSF14, TNFRSF25, TNFSF9, IL10RB, TGFB1, PVRL2, LGALS9, TNFRSF25, CXCL3, CXCL16, CXCL17, TAPBP, TAP2, HLA-C, and HLA-A.