However, it did not affect the reduction in tumor weight by RT (SHD-RT: 0.358 ± 0.079 g vs. SHD-RT + αCD8: 0.445 ± 0.007 g, p = 0.463), which might indicate that the CD8+ cells in irradiated tumors might be functionally suppressed. This evidence concerns the gene CD8A and neoplasm.