CSF3 and neoplasm: As shown in Fig. 5A (ii)–(iii), we observed a marked enrichment of Ly6ClowLy6G+ granulocytic MDSC in the ME180-G-CSF-derived tumor-bearing mice, indicating that granulocytic MDSC are the dominant subset that is expanded by the G-CSF secreted by ME180-G-CSF-derived tumors.