CGAS and neoplasm: The cGAS‐STING pathway initiates innate immunity by recognizing cytosolic DNA and generating type I interferons.[18] Tumor‐infiltrating natural killer (NK) cells were markedly increased with DMPtNPS@cGAMP + RT group (57.9%) in contrast to RT (18.8%), RT + cGAMP (24.1%), or RT + DMPtNPS groups (41.0%) (Figure 7C).