Fig. 4

Biodistribution results of anti-PD-L1 multimodal imaging tools. Biodistribution is shown at several time points after injection (p.i.) of ¹¹¹In-labeled A mIgG1-IH18, B Fab-IH18 or C Fab-IH18-PEG. D Tumor uptake values (left graph) and tumor/blood ratios (right graph) of the three constructs are compared directly at each time point. Data are shown as mean ± SD, n = 5