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Related Experiment Video

Updated: Jun 11, 2025

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

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Intracellular biliverdin dynamics during ferroptosis.

Kazuma Nakajima1, Hironari Nishizawa1, Guan Chen2

  • 1Department of Biochemistry, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan.

Journal of Biochemistry
|September 28, 2024
PubMed
Summary

Intracellular biliverdin decreases during ferroptosis, a cell death process. Measuring biliverdin levels can predict sensitivity to ferroptosis, aiding cancer therapy development.

Keywords:
BACH1biliverdincyanobacteriochromeferroptosisheme

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Assessing Iron Deposition in the Brains of 5xFAD Mice by Perls'/DAB Staining
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Area of Science:

  • Biochemistry
  • Cell Biology
  • Oncology

Background:

  • Ferroptosis, an iron-dependent cell death, is a key cancer-suppressing mechanism.
  • Limited biomarkers exist for identifying ferroptotic cells and assessing ferroptosis sensitivity.
  • Biliverdin, an endogenous reducing substance, plays a role in cellular redox balance.

Purpose of the Study:

  • To investigate the dynamics of intracellular biliverdin during ferroptosis.
  • To determine if biliverdin levels can serve as a marker for ferroptosis.
  • To assess the potential of biliverdin as a predictor of ferroptosis sensitivity.

Main Methods:

  • Utilized a biliverdin-binding cyanobacteriochrome to monitor intracellular biliverdin levels.
  • Compared biliverdin dynamics across different cell death modalities.
  • Employed a ferroptosis model induced by BACH1 re-expression to test biliverdin's predictive capacity.

Main Results:

  • Intracellular biliverdin levels were found to decrease specifically during ferroptosis.
  • This decrease was distinct from other forms of cell death.
  • Biliverdin levels accurately predicted sensitivity to ferroptosis in a BACH1-induced model.

Conclusions:

  • Intracellular biliverdin is a specific indicator of ferroptosis.
  • Measuring biliverdin levels offers a novel method for assessing ferroptosis sensitivity.
  • These findings support the development of ferroptosis-targeting cancer therapies.