Regarding DFS, there was an association between high FDX1 expression and satisfactory prognosis in TCGA cancers, such as KIRC (HR = 0.58, p = 4.8E–05), LIHC (HR = 0.71, p = 0.024), MESO (HR = 0.53, p = 0.025), and THCA (HR = 0.49, p = 0.019), and high FDX1 expression was regarded as a hazardous factor for LGG (HR = 1.9, p = 4.8E-05) (Figure 2B). The gene discussed is FDX1; the disease is cancer.