For IL-17F, its expression was positively correlated with T dysfunction value in melanoma (TCGA), and negatively correlated with the T dysfunction value in UCEC (TCGA); its expression was positively correlated with the TIDE value in LUAD (r = 0.19, p < 0.001), LUSC (r = 0.19, p < 0.001), and THCA (r = 0.23, p < 0.001), and negatively correlated with the TIDE value in LIHC (r = −0.18, p < 0.001). This evidence concerns the gene IL17F and melanoma.