NR4A1 and neoplasm: NR4A1 reduced tumour cell migration, since 61 ± 2.1% (mean ± SE, n = 3, P < 0.001) and 44 ± 5% (mean ± SE, n = 3, P < 0.001) of PMC42-NR4A1 cells and ZR75-1-NR4A1 cells, respectively, migrated compared with control cells.