Figure 1. Schematic of possible pathway of MDSC differentiation in cancer.
Blue dashed lines denote myeloid cell differentiation under physiologic conditions. Black solid line shows proposed development of MDSC in tumor-bearing host. HSC – hematopoietic stem cells, CMOP – common myeloid progenitor, MΦ – macrophages, DC –dendritic cells, T – T cells. See detailed explanation in the text.