Nedd4 ubiquitylates VDAC2/3 to suppress erastin-induced ferroptosis in melanoma

Nat Commun. 2020 Jan 23;11(1):433. doi: 10.1038/s41467-020-14324-x.

Abstract

Ferroptosis is a newly defined form of regulated cell death characterized by the iron-dependent accumulation of lipid hydroperoxides. Erastin, the ferroptosis activator, binds to voltage-dependent anion channels VDAC2 and VDCA3, but treatment with erastin can result in the degradation of the channels. Here, the authors show that Nedd4 is induced following erastin treatment, which leads to the ubiquitination and subsequent degradation of the channels. Depletion of Nedd4 limits the protein degradation of VDAC2/3, which increases the sensitivity of cancer cells to erastin. By understanding the molecular mechanism of erastin-induced cellular resistance, we can discover how cells adapt to new molecules to maintain homeostasis. Furthermore, erastin-induced resistance mediated by FOXM1-Nedd4-VDAC2/3 negative feedback loop provides an initial framework for creating avenues to overcome the drug resistance of ferroptosis activators.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antineoplastic Agents / pharmacology*
  • Cell Line, Tumor
  • Drug Resistance, Neoplasm / drug effects
  • Drug Resistance, Neoplasm / physiology
  • Female
  • Ferroptosis / drug effects
  • Ferroptosis / physiology
  • Forkhead Box Protein M1 / metabolism
  • Humans
  • Melanoma / drug therapy*
  • Melanoma / metabolism
  • Melanoma / pathology
  • Mice, Nude
  • Mitochondrial Membrane Transport Proteins / genetics
  • Mitochondrial Membrane Transport Proteins / metabolism*
  • Nedd4 Ubiquitin Protein Ligases / genetics
  • Nedd4 Ubiquitin Protein Ligases / metabolism*
  • Piperazines / pharmacology*
  • Ubiquitination / drug effects
  • Voltage-Dependent Anion Channel 2 / genetics
  • Voltage-Dependent Anion Channel 2 / metabolism*
  • Voltage-Dependent Anion Channels / genetics
  • Voltage-Dependent Anion Channels / metabolism*
  • Xenograft Model Antitumor Assays

Substances

  • Antineoplastic Agents
  • FOXM1 protein, human
  • Forkhead Box Protein M1
  • Mitochondrial Membrane Transport Proteins
  • Piperazines
  • VDAC2 protein, human
  • VDAC3 protein, human
  • Voltage-Dependent Anion Channel 2
  • Voltage-Dependent Anion Channels
  • erastin
  • Nedd4 Ubiquitin Protein Ligases
  • Nedd4 protein, human