Wang et al. [106] applied western blotting, using an antibody against the carboxyl terminal of the FLI1 protein, for the detection of the 68-kDa EWS/FLI1 fusion protein in cultured Ewing’s sarcoma cells and in four surgical biopsies of Ewing’s sarcoma. This evidence concerns the gene FLI1 and Ewing sarcoma.