Cited by 2,332Ferroptosis and cancer prognosisAutophagy in Disease and TherapyIron Metabolism and Disorders

Autophagy promotes ferroptosis by degradation of ferritin

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Hou, Wen, Xie, Yangchun, Song, Xinxin, Sun, Xiaofang, Lotze, Michael T., Zeh, Herbert J., Kang, Rui, Tang, Daolin·2016·Autophagy

Abstract

Macroautophagy/autophagy is an evolutionarily conserved degradation pathway that maintains homeostasis. Ferroptosis, a novel form of regulated cell death, is characterized by a production of reactive oxygen species from accumulated iron and lipid peroxidation. However, the relationship between autophagy and ferroptosis at the genetic level remains unclear. Here, we demonstrated that autophagy contributes to ferroptosis by degradation of ferritin in fibroblasts and cancer cells. Knockout or knockdown of Atg5 (autophagy-related 5) and Atg7 limited erastin-induced ferroptosis with decreased intracellular ferrous iron levels, and lipid peroxidation. Remarkably, NCOA4 (nuclear receptor coactivator 4) was a selective cargo receptor for the selective autophagic turnover of ferritin (namely ferritinophagy) in ferroptosis. Consistently, genetic inhibition of NCOA4 inhibited ferritin degradation and suppressed ferroptosis. In contrast, overexpression of NCOA4 increased ferritin degradation and promoted ferroptosis. These findings provide novel insight into the interplay between autophagy and regulated cell death.

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Crossref · 10.1080/15548627.2016.1187366

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Authors
Hou, W., Xie, Y., Song, X., Sun, X., Lotze, M. T., Zeh, H. J., Kang, R., & Tang, D.
Affiliations
  • University of Pittsburgh (US)
  • Third Affiliated Hospital of Guangzhou Medical University (CN)
Corresponding author
Tang, Daolin
Venue
Autophagy
Published
2016-06-24
Volume
12
Issue
8
Pages
1425-1428
ISSN
  • 1554-8627 (ISSN-L)
  • 1554-8635
OpenAlex
W2414659015
Cited by
2,332
References
28
Citations by year
2026: 278 · 2025: 361 · 2024: 383 · 2023: 412 · 2022: 320 · 2021: 265 · 2020: 145 · 2019: 85 · 2018: 45 · 2017: 29 · 2016: 7
FWCI
49.50
Type
journal article
Language
en
Open access
Locations
  • Autophagy (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of Pittsburgh (P30 CA047904)
  • National Natural Science Foundation of China (201508020258, R01GM115366, 201400000004-4, RSG-16-014-01-CDD, P30CA047904, 201400000003, R01CA160417, 31171229, 201400000003-4, U1132005)
  • Natural Science Foundation of Guangdong Province (31171229, RSG-16-014-01-CDD, 201400000003-4, R01CA160417, U1132005, P30CA047904, 201400000004-4, R01GM115366, 201508020258)
  • National Institutes of Health (RSG-16-014-01-CDD)
  • Cancer Institute, University of Pittsburgh (RSG-16-014-01-CDD, R01GM115366, R01CA160417, P30CA047904)
  • National Cancer Institute (R01CA160417, R01CA181450, P30CA047904)
  • National Institute of General Medical Sciences (R01GM115366)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Ferroptosis and cancer prognosis
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
Keywords
ferroptosis, ferritinophagy, ferritin degradation, NCOA4, ATG5, ATG7, lipid peroxidation, iron homeostasis, selective autophagy, regulated cell death, erastin
MeSH terms
Autophagy-Related Protein 5, Autophagy-Related Protein 7, Animals, Autophagy, Ferritins, Fibroblasts, Homeostasis, Humans, Iron, Pancreatic Neoplasms, Piperazines, Lipid Peroxidation, Apoptosis, Reactive Oxygen Species, Mice, Knockout, Mice, Nuclear Receptor Coactivators

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