ITGAM and neoplasm: The frequencies of CD11b+ Ly6G+ Ly6C+ PMN-MDSC and CD11b+ Ly6G− Ly6Chigh M-MDSC were assessed in the peripheral blood and the spleen of tumor-bearing wild-type C57BL/6 mice, at indicated time points following lymphodepletion (day 0) and active-specific tumor-cell vaccination (day 1).