CASP3 and neoplasm: Tumours exposed to 10 Gy/5F (7.65±2.7% of the tumour areas stained for caspase-3) exhibited a twofold increase of caspase-3 activation when combined with USMB (14.8±3.9%), indicating an enhanced effect in which USMB causes caspase-3 activation of primary tumour cells.