Myeloid cells infiltrated in tumor tissues are heterogeneous populations, primarily CD11b+Gr-1+ granulocytes, also referred to as myeloid-derived suppressor cells (MDSCs), and CD11b+F4/80+ Gr-1−/low tumor-associated macrophages (TAMs)38, 40, 41, 42, 43, 44, 45, 46, 47. Here, ITGAM is linked to neoplasm.