EWSR1 and Ewing sarcoma: Consistent with our previous report using Ewing sarcoma A673 cells and HeLa cells, the DLD-1 cells that were induced to express EWSR1/FLI1 (Dox+) displayed a greater incidence of aberrant Aurora B localization than uninduced (Dox-) cells (Fig. 4, A–B) (25, 30).