Flow-cytometry antibodies included CD3e-PE, PD1-BV605, CD45-BV786 (BD-Biosciences), CD90.1-FITC, CD62L-PECy7, CD45.1-APC, CD45.1-PE (eBioscience), CD45.2-Alexa700, CD-8α-Percp-Cy5.5, CD4-FITC, CD103-APC, CD24-APCcy7 (Invitrogen), CD44-APCy7, CD4-BV421, F4/80-PercpCy5.5, CD39-PECy7, PDL1-PE, CD90.2-Alexa 700, MHCII-BV421, CD11b-BV650, Ly6C-BV711 (Biolegend), CD8α-PE-Texas-red (Life Technologies, Carlsbad, CA, USA). Blocking PD-1 antibody (clone RMP1-14, BioXCell, Branford, CT, USA) was administered systemically by intraperitoneal injections of 250 μg [41 (link)]. Blocking anti-CD40L (clone MR1, BioXCell) was administered systemically by intraperitoneal injections of 250 μg [19 (link)].
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