MERTK and neoplasm: Similarly, analysis of EMT6 tumors revealed significant increases in total levels of tumor-infiltrating leukocytes (TILs) of both myeloid and lymphoid lineage, M1 macrophages, NKT cells, a trending increase in activated CD8+ T cells, and a significant decrease in pro-tumor PMN-MDSCs for EMT6 MerTK C5 tumors compared to Vector control (Figure 2E).