GAL3ST1 and nonpapillary renal cell carcinoma: Interestingly, ccRCC and pRCC in the TCGA cohort showed significantly higher Gal3ST1 mRNA expression than non-neoplastic kidney tissue of the same patients, opposite to the chRCC (data not shown); still, without knowing the exact localization of the ‘normal kidney tissue’ (cortex vs. medulla), this observation should be interpreted with caution.