IFI16 and renal cell carcinoma: The IFI16 expressions of 786-O and ACHN cells transfected with si-IFI16 were 0.12 ± 0.02 and 014 ± 0.01, respectively, while the expressions of RCC cells transfected with NC were 0.92 ± 0.08 and 0.94 ± 0.14 (Figure 4A).