PTPRC and neoplasm: Within the CD45/Cy5+-population, DCs made up more than half of the population (54.4±1.9%), followed by macrophages (25.4±1.8%) and granulocytes (3.3±0.4%) (Fig 6D), suggesting preferential differentiation of DiD-BM-MDSCs to DCs and macrophages within the tumor.