Expression levels were highest in Ly6Chi MHCII− followed by Ly6Chi MHCII+ monocytic cells and then MHCIIhi and MHCIIlo TAM subsets (Figure 4A) We detected lower PD-L1 expression on monocytes from the tumors than from lamina propria (Figure 4B) indicating that the tumor microenvironment is less inductive for PD-L1 expression than the lamina propria. Here, CD274 is linked to neoplasm.