CD40 and cancer: In contrast, FDX1 expression was negatively correlated with CD40 expression in ACC, COAD, ESCA, KICH, KIRC, KIRP, acute myeloid leukemia (LAML), PRAD, STAD, and THCA, but was positively related to this gene expression in the other six cancers (Figure 10G, Supplementary Table S1).