Fig. 3From: GITR ligand fusion protein agonist enhances the tumor antigen–specific CD8 T-cell response and leads to long-lasting memoryLevels of GITRL-FP bound to T-cell populations in mice receiving 3 doses of biotinylated isotype antibody or biotinylated GITRL-FP on days 11, 14, and 18. GITRL-FP drug levels were detected using SA-APC and free GITR was detected using DTA-1 anti-GITR antibody on a) Spleen CD4 b) Spleen CD8 c) Tumor CD4 d) Tumor CD8 Back to article page