To explore the role of MPs and NPs in tumour growth of SIRPα‐KO mice, we depleted these cells by i.p. injection of clodronate liposomes and anti‐Ly6G (αLy6G) antibody, respectively, 1 day before tumour inoculation of LLC cells and every 5 days afterwards (Figure 2A). The gene discussed is SIRPA; the disease is neoplasm.