TNFRSF18 and cancer: Similarly, ZNF668 was positively correlated with PVRL2 (Nectin-2), CD276 (B7-H3), TGFB1, and multiple members of the TNF receptor superfamily, including TNFRSF4 (OX40), TNFRSF18 (GITR), and TNFRSF25, in the vast majority of analyzed cancers (Figure 8B).