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Author Spotlight: Tracing the Ferroptotic Signatures and Cell Death Dynamics in Medulloblastoma for Advanced Therapeutics
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Sweet signaling for ferroptosis.

Fan Yu1, Lingyu Jiang2, Quan Chen2

  • 1Qingdao Central Hospital, School of Health and Life Sciences, University of Health and Rehabilitation Sciences, Shandong Key Laboratory of Neurorehabilitation, Qingdao 266113, China; State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China.

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|September 19, 2025
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Summary

O-GlcNAcylation regulates ferroptosis by controlling the nuclear translocation of FOXK2. This process promotes hepatocellular carcinoma progression and resistance to therapy, indicating a potential therapeutic target.

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Area of Science:

  • Biochemistry
  • Cell Biology
  • Oncology

Background:

  • Ferroptosis is a regulated form of cell death.
  • O-linked N-acetylglucosamine (O-GlcNAc) is a post-translational modification.
  • The role of O-GlcNAcylation in ferroptosis is not well understood.

Purpose of the Study:

  • To investigate the role of O-GlcNAcylation in ferroptosis.
  • To elucidate the molecular mechanisms by which O-GlcNAcylation regulates ferroptosis.
  • To explore the therapeutic potential of targeting O-GlcNAcylation in hepatocellular carcinoma (HCC).

Main Methods:

  • Western blotting
  • Immunofluorescence
  • Quantitative real-time PCR
  • Cell viability assays
  • Animal models of HCC

Main Results:

  • Ferroptosis induction promotes O-GlcNAcylation.
  • Reactive oxygen species (ROS) activate O-GlcNAc transferase (OGT).
  • OGT-mediated O-GlcNAcylation of FOXK2 drives its nuclear translocation.
  • Nuclear FOXK2 upregulates SLC7A11 expression.
  • This axis promotes HCC progression and therapy resistance.

Conclusions:

  • O-GlcNAcylation is a critical regulator of ferroptosis.
  • The OGT-mediated FOXK2 O-GlcNAcylation axis promotes HCC progression and therapy resistance.
  • Targeting this axis holds therapeutic potential for HCC.