Accumulating evidence indicates that chemotherapy, radiotherapy, angiogenesis inhibitor, stimulator of interferon genes (STING) agonist, fecal microbiota transplantation (FMT), epigenetic modulators, or other immunomodulators could synergize α-PD-1/PD-L1, by enhancing cancer antigen release, APC function, or effector activity [22–31]. Here, CD274 is linked to cancer.