CD8A and neoplasm: Additionally, 6Gy*3f-TEXs-loaded DCs loaded with 6Gy*3f-TEXs reduced PD-1 expression in CD8+ T cells significantly (Figure 5F) suggests that 6Gy*3f-TEXs-loaded DCs loaded with 6Gy*3f-TEXs primarily stimulate an immune response to eliminate tumor cells through TAA-specific CTL activation and proliferation.