In AML, the mucin 1 (MUC1) oncoprotein is shown to facilitate the proliferation of MDSCs [123], and there seems to be a correlation between increased numbers of this population and extramedullary involvement, plasma D-dimers, higher minimal residual disease (MRD), blast cell frequency, and Wilms 1 (WT-1) gene detection [124]. Here, MUC1 is linked to acute myeloid leukemia.