FAT1 and glioblastoma: Immune cell marker genes analysis illustrated that FAT1 was significantly associated with a variety of immune cell markers in BRCA, DLBC, GBM, HNSC, KIRC, KIRP, LIHC, LUAD, LUSC, OV, PCPG, PRAD, SARC, SKCM, STAD, TGCT, THCA, THYM, UCEC, and other tumors.