We collected CD11b+, Ly6GlowLy6Chigh cells (Ly6C, M-MDSC), CD11b+Ly6GhighLy6Clow cells CD11b+Gr1+ cells (Ly6G, G-MDSC), and CD11b+Ly6G-Ly6C- (macrophages) from the spleen of 4T1 tumor-bearing mice (Fig. 3A). Here, ITGAM is linked to neoplasm.