Tumor M-MDSCs expressed Arginase 1 (Arg1) (Fig. 3D), consistent with a suppressive phenotype (25), and the genes encoding the IL-4Rα and IL-13Rα1 receptor subunits, suggesting their potential ability to respond to ILC2-derived cytokines IL-4 and IL-13. This evidence concerns the gene ARG1 and neoplasm.