Interestingly, significant upregulation of GITR (<0.0005***), PD-L1 (<0.002**) and HVEM (<0.006**) was observed in responding patients...The study demonstrates that 10 markers show differences in NSCLC patients as compared to healthy controls; 2 markers as surrogates for tissue PDL-1 and 3 markers as predictive biomarkers of response to ICB treatment.