CD274 and neoplasm: MCC@TM‐αP consists of MnO2, calcium peroxide (CaO2), and chlorin e6 (Ce6) encapsulated within a nanoparticle camouflaged with a tumor cell membrane (TM) for homologous targeting, followed by surface conjugation of a PD‐L1 antibody (αP) via a GSH‐cleavable linker (Figure1a).[55, 56] The dual‐targeting mechanism mediated by the TM and PD‐L1 antibody ensures efficient tumor accumulation.