SERPINE1 and nonpapillary renal cell carcinoma: Analysis of The Cancer Genome Atlas (TCGA) kidney clear cell carcinoma (KIRC) database for RNA sequencing data related to ccRCC showed significantly reduced overall survival in high expressers of CXCL8 (IL8), CCL5, CSF2, TFPI-2, and SERPINE1 (PAI1) (Supplemental Figure S2).