On the other hand, pRCC showed upregulation of TFPI2, FSTL1, FAS, and PIGR in the epithelial/tumor, C1QTNF3 and GRN in the endothelial, and ITGAX, HLA-DQA1, IL4I1, and CTSC in the immune compartments. Here, FSTL1 is linked to neoplasm.