Since CD11b and Gr-1 are both commonly expressed on cancer-associated myeloid suppressor cells (MDSC; [30, 38, 39]), lung-purified Gr-1+ myeloid cells from the Clod Lipo- or Lipo-treated bleomycin model at day 5 after bleomycin were analyzed for the expression of several MDSC markers. Here, ITGAM is linked to cancer.