PD-1, Pdc1, Ly101, Cd152, Ly-56, Ctla-4
活体
PD-1 expression in stimulated T cells
Fig1. The expression of human PD-1 and CTLA-4 in double humanized PD-1&CTLA-4 mice was confirmed by FACS.
Fig2. In vivo validation of double humanized PD-1&CTLA-4 mice. Double humanized mice were inoculated with MC38 cells, and randomly assigned to different groups (n=8) when the tumor grew to a volume of 100 mm3. A combinatorial treatment of anti-CTLA-4 and anti-PD-1 demonstrated a noticeable efficacy improvement compared to the same dose of single agent (top) without affecting the animal body weight (Bottom).
Figure 3. As shown in the previous figure, animals of group 1-4 received different doses of either single agent or combinatorial treatment. This graph showed the progression of the tumor implanted in the cured, G4 mice, implicating a systematic anti-tumor effect induced by the combinatorial antibody treatment.
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