Our findings demonstrated a positive correlation between NNMT expression and tumor infiltration of MDSCs in several cancers, including COAD, LIHC, LUSC, MESO, OV, PCPG, PRAD, READ, SARC, STAD, THCA, THYM, UCEC, UCS, and UVM (Fig. 5B). Here, NNMT is linked to neoplasm.