CD274 and neoplasm: Mechanistically, high‐EDEM3 expression facilitates M2‐like This finding contradictsthe previous trend that positive PD‐L1 expression indicates a strong responseto PD‐1/PD‐L1 blockade.Mechanistically, polarizationand chemotactic migration of macrophages, which are enriched in theperipheral region of tumours compared to thecore region, precluding access of CD8+ T cells to tumourfoci.