ABCG2 and acute myeloid leukemia: Interestingly, the expression of both genes was significantly higher in the SALL4 high group (P = 0.0001, Figure 5D, and P = 0.02 Figure 5E respectively) compared to SALL4 low group, showing a positive correlation of ABCA3 and ABCG2 with SALL4 in primary AML samples.