CD274 and oculocutaneous albinism: Indeed, PD-L1hi myeloid cells, particularly Gr-1intLy6G+ cells, were decreased in ascites in mice treated with EC359, which also increased Gr-1–Ly6G– cells and abrogated their PD-L1 expression (Fig. 6g, h, Supplementary Fig. 5f), emphasizing a role of EC359 in remodeling the external environment of OCa tumors.