In examining B7-H3 expression in the context of PD-1/PD-L1 staining, we found that only lung cancers display positive correlations between B7-H3 and PD-L1 expression (q < 0.001), while triple-negative breast cancers display a negative correlation (q < 0.001; Fig. 3D). This evidence concerns the gene CD276 and lung carcinoma.