The expression of immune checkpoint molecules was assessed using a rabbit monoclonal antibody (mAb) against PD\L1 (Clone SP142, dilution 1:100; Abcam)
The expression of immune checkpoint molecules was assessed using a rabbit monoclonal antibody (mAb) against PD\L1 (Clone SP142, dilution 1:100; Abcam). a strong association with Kyn expression. Furthermore, immunohistochemical staining of TDO was strongly associated with the staining intensity of forkhead box P3, as well as ICI therapy response and survival in patients with mRCC….