Poly(C)-binding protein 1(PCBP1)is a multifunctional RNA-binding protein involved in a series of processes such as gene transcription,selective modification,translation and regulation of iron metabolism.This pa-per explores the pathway through which PCBP1 inhibits ferroptosis during the research on PCBP1-related diseases,such as bladder cancer and head and neck cancer.PCBP1 can reduce the intracellular ferrous iron content to inhib-it ferroptosis through the mechanisms like inhibiting ferritinophagy,promoting the transfer of iron ions to ferritin or iron-dependent enzymes,stabilizing the labile iron pool within cells and facilitating the formation of[2Fe-2S]clus-ters.PCBP1 can also reduce the generation of lipid peroxides and enhance the resistance to oxidative stress thus to reduce the level of intracellular reactive oxygen thereby inhibiting ferroptosis.