FOXK1 and cancer: The three data sets revealed 15 FOX members whose expression in cancer tissues were all elevated (Figure 1A): FOXA1, FOXC1, FOXC2, FOXD1, FOXF1, FOXF2, FOXJ1, FOXK1, FOXL1, FOXM1, FOXN2, FOXN3, FOXP1, FOXQ1, and FOXS1.