Gastric cancer (GC) is one of the most crucial malignancies worldwide because of the high lethality. This study aims to explore the mechanism by which ubiquitin-specific protease 17 (USP17) mediates autophagic ferroptosis in GC. In the present study, we cultured human GC cell line AGS in vitro and knocked BNIP3 or NCOA4 down using specific small interfering-RNA. Erastin was chosen as a ferroptosis inducer while Ferrostatin-1 was utilized as an inhibitor of ferroptosis. Then, the levels of mitophagy-related proteins, USP17, BNIP3, mitochondrial marker proteins, NCOA4, and FTH1 were quantified t...