RPL17 and neoplasm: In this study, we explored the use DNA vaccine or plasmid encoded antibodies and the combined treatment of α-PD-1 with DNA vaccines through the L/E/G system, and found that the pEMS-OVA DNA vaccine can not only can prevent tumor attacks from occuring in the body, but also cooperate with pVAX-α-PD-1 plasmid to suppress tumors.