We also observed reduced expression of SSEA-1 and SSEA-3 in AML M4/M5 monoblasts compared to their normal counterparts (SSEA-1 MM1: 12.8 ± 0.2 vs. 17.7 ± 2.1, p = 0.0507; SSEA-3 MMI: 13.6 ± 1.1 vs. 17.5 ± 3.9, p = 0.0479). Here, FUT4 is linked to acute myeloid leukemia.