Notably, we observed a higher level of PD‐L1 on tumor‐infiltrating neutrophils (TANs) from Setd2KO orthotopic tumors than on TANs from Setd2WT orthotopic tumors, and the expression of PD‐L1 on TANs was much higher than that on epithelial tumor cells (Figure S5F, Supporting Information). Here, CD274 is linked to neoplasm.