Quantification of positive cells per field demonstrated significantly increased caspase-3 staining for the combined therapy group compared with untreated, immunotherapy, or radiotherapy-treated samples (p = 0.001, 0.003, and 0.001 for melanoma and p = 0.0002, 0.0007, and 0.002 for lung cancer, respectively). Here, CASP3 is linked to melanoma.