CA9 and renal carcinoma: Accordingly, E1A protein confirmed by the MFI also could be efficiently expressed in Ad‐CAIXpromotor or Ad‐CAIXpromotor‐AIM2‐infected renal cancer cells (Figure 1F,G), and indicated Ad‐CAIXpromotor or Ad‐CAIXpromotor‐AIM2 efficiently droved the E1A expression in CAIX antigen‐positive cells.