The results showed that YTHDF1 expression was related to different immune subtypes in BRCA, COAD, HNSC, KIRC, LGG (brain lower grade glioma), LUAD, LUSC, OV (ovarian serous cystadenocarcinoma), PRAD, SKCM (skin cutaneous melanoma), STAD, and UCEC (Figure 3). The gene discussed is YTHDF1; the disease is cutaneous melanoma.