For example, at day 15 100% of mice had developed tumours in the parental and mutant KRAB/FLI-1-expressing cells (mean tumour volume 113±23 and 111±22 mm3, respectively), whereas only 50% of mice inoculated with KRAB/FLI-1-expressing cells had palpable tumours (mean volume 34±8 mm3). Here, FLI1 is linked to neoplasm.