ITGAX and cancer: As expected, DCIR1 was detected on tumor-infiltrating monocytes, macrophages, dendritic cells and neutrophils but not on stromal/cancer cells (CD45.2−) and lymphoid cells (CD45.2+ CD11b− CD11c−) (Fig. 4A and supplementary Fig. S3A,B; Gating strategy in supplementary Fig. S4A).