PCBP1 and neoplasm: Numerous studies have indicated that PCBP1, as a tumor suppressor that inhibits tumorigenesis and metastasis, is involved in the transcription, alternative splicing, and translation of many tumor‐associated genes, ferroptosis and autophagy.[39, 40] Given that in the cytoplasm, circPRELID2 facilitated OGT‐mediated PCBP1 O‐GlcNAcylation, we wondered whether O‐GlcNAcylation of PCBP1 affects its cytoplasmic functions, particularly in translation regulation.