FOXD2 and nonpapillary renal cell carcinoma: We measured the FOXD2-AS1 mRNA levels in ccRCC cell lines (786-O, HEK293 T, Caki-1, ACHN) and normal kidney cell lines (HK-2), and the FOXD2-AS1 mRNA levels were higher in ccRCC cells, where 786-O presented the highest level (Figure 10(a)).