There was almost a complete loss of immature myeloid cells often described as myeloid-derived suppressor cells or PMN-MDSCs with high GR1 expression (iMCs, CD45+CD11b+GR1hi)23 and lower proportion of macrophages (Macs, CD45+CD11b+F4/80+) that increased in Py117 tumours after radiation. Here, PTPRC is linked to neoplasm.