In the control, PD-1, 10X, 10C, 10X+PD-1, and 10C+PD-1 groups, the tumor weight on the irradiated side was 2.168±0.476g, 1.495±0.290g, 1.791±0.517g, 1.198±0.245g, 0.886±0.136g, and 0.303±0.051g, respectively. This evidence concerns the gene PDCD1 and neoplasm.