Using data from the Human Protein Atlas (TCGA RNA-Seq data) (courtesy of the Human Protein Atlas, www.proteinatlas.org, 15 May 2021) [11], we highlighted that CHST15, which had already been described as an unfavorable prognostic marker for renal cancer, displayed a high expression correlated with poor outcomes in most human cancers in the survival analysis (15/17 cancer types) (Figure 6E,F and Figure S13). The gene discussed is CHST15; the disease is cancer.