RBP3 and neoplasm: CD11b+Gr-1+ MDSCs shared similar surface markers with tumor MDSCs, they efficiently inhibited T cell proliferation and inflammatory cytokine production, and their systemic delivery to mice immunized with the interphotoreceptor retinoid-binding protein (IRBP)1−−20 peptide in complete Freund's adjuvant (CFA) prevented EAU-related retinal injury (7).