Figure 6

The PD-1 expressed in (2) IHC staining and (4) WB. The PD-L1 expressed in (6) WB. Magnification, 400×. β-actin was the internal control of WB. Panels 1, 3 and 5 demonstrate the statistical analysis for IHC staining and WB. *P < 0.05 and #P < 0.05.