Renal cancer cell lines in comparison to all other cancer entities expressed significantly higher cell surface levels of CD24, CD26, CD106 (VCAM1), TIM1, SSEA-3 (B3GALT5), SSEA-4 (TMCC1), TRA-1-60R (PODXL) and EGFR (Fig. 4a right and primary FACS data in Fig. 4b). This evidence concerns the gene DPP4 and renal carcinoma.