Fig. 1From: Characterization and dynamics of the soluble immunological microenvironment in melanoma patients undergoing radiotherapyBox-plot-diagrams displaying the serum levels of PD-L1 (A) and PD-L2 (B) at different time points. Before (pre-RT), after completion of half (mid-RT) and after completion of the radiotherapy (post-RT). In comparison with healthy volunteers, a significant elevation of PD-L1 and decrease of PD-L2 was found (* = significance). RT, radiotherapyBack to article page