We further examined the effects of chemotherapy on lung myeloid cells and found that GEM treatment significantly increased the accumulation of lung MAMs (CD11bhiF4/80+CD11c−) and monocytes (CD11bhiLy6C+Ly6G−) in E0771 tumor–bearing mice after GEM treatment (Figure 1, G and H). Here, ITGAX is linked to neoplasm.