STING1 and neoplasm: These liposomes, termed DGL, were co‐loaded with the chemotherapeutic drug DOX and the STING agonist cGAMP for combined chemo‐immunotherapy.[52c] Systematic screening revealed that formulations containing 8% DOTAP optimized in lysosomal escape and tumor distribution of cGAMP and DOX, resulting in an 86% tumor inhibition rate and prolonged survival in B16‐F10 tumor‐bearing mice.