Modeling the effects of lipid peroxidation during ferroptosis on membrane properties

Sci Rep. 2018 Mar 26;8(1):5155. doi: 10.1038/s41598-018-23408-0.

Abstract

Ferroptosis is a form of regulated cell death characterized by the accumulation of lipid hydroperoxides. There has been significant research on the pathways leading to the accumulation of oxidized lipids, but the downstream effects and how lipid peroxides cause cell death during ferroptosis remain a major puzzle. We evaluated key features of ferroptosis in newly developed molecular dynamics models of lipid membranes to investigate the biophysical consequences of lipid peroxidation, and generated hypotheses about how lipid peroxides contribute to cell death during ferroptosis.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Boron Compounds
  • Cell Death / physiology*
  • Fatty Acids / metabolism
  • Fluorescent Dyes
  • Glutathione Peroxidase / antagonists & inhibitors
  • Iron / metabolism
  • Lipid Bilayers / metabolism*
  • Lipid Peroxidation / physiology*
  • Lipid Peroxides / metabolism
  • Membrane Proteins / metabolism
  • Membranes / metabolism*
  • Microscopy, Phase-Contrast
  • Molecular Dynamics Simulation*
  • Phospholipid Hydroperoxide Glutathione Peroxidase
  • Porins / metabolism
  • Reactive Oxygen Species / metabolism
  • Unilamellar Liposomes / metabolism

Substances

  • 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene
  • Boron Compounds
  • Fatty Acids
  • Fluorescent Dyes
  • Lipid Bilayers
  • Lipid Peroxides
  • Membrane Proteins
  • Porins
  • Reactive Oxygen Species
  • Unilamellar Liposomes
  • Iron
  • Phospholipid Hydroperoxide Glutathione Peroxidase
  • Glutathione Peroxidase