The data demonstrated a substantial connection between IDO1 expression and immunological subtype of UVM, UCES, THCA, TGCT (uveal melanoma), STAD, SARC, SKCM, READ, OV, PAAD, LUSC, LIHC, LUAD, LGG, KIRC, KIRP, HNSC, COAD, ESCA, CESC, BRCA and BLCA (Fig. 10). Here, IDO1 is linked to uveal melanoma.