Cited by 357Iron Metabolism and DisordersAntioxidant Activity and Oxidative StressRedox biology and oxidative stress

Ferritin as a source of iron for oxidative damage

Reif, David W.·1992·Free Radical Biology and Medicine

Abstract

The generation of deleterious activated oxygen species capable of damaging DNA, lipids, and proteins requires a catalyst such as iron. Once released, ferritin iron is capable of catalyzing these reactions. Thus, agents that promote iron release may lead to increased oxidative damage. The superoxide anion formed enzymatically, radiolytically, via metal-catalyzed oxidations, or by redox cycling xenobiotics reductively mobilizes ferritin iron and promotes oxidative damage. In addition, a growing list of compounds capable of undergoing single electron oxidation/reduction reactions exemplified by paraquat, adriamycin, and alloxan have been reported to release iron from ferritin. Because the rapid removal of iron from ferritin requires reduction of the iron core, it is not surprising that the reduction potential of a compound is a primary factor that determines whether a compound will mobilize ferritin iron. The reduction potential does not, however, predict the rate of iron release. Therefore, ferritin-dependent oxidative damage may be involved in the pathogenesis of diseases where increased superoxide formation occurs and the toxicity of chemicals that increase superoxide production or have an adequate reduction potential to mobilize ferritin iron.

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Crossref · 10.1016/0891-5849(92)90091-t

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Authors
Reif, D. W.
Corresponding author
Reif, David W.
Venue
Free Radical Biology and Medicine
Publisher
Elsevier BV
Published
1992
Volume
12
Issue
5
Pages
417-427
ISSN
0891-5849 (ISSN-L)
OpenAlex
W1972164300
Cited by
357
References
95
Citations by year
2026: 2 · 2025: 5 · 2024: 5 · 2023: 5 · 2022: 9 · 2021: 7 · 2020: 10 · 2019: 4 · 2018: 7 · 2017: 5 · 2016: 10 · 2015: 10 · 2014: 11 · 2013: 10 · 2012: 7
FWCI
11.24
Type
journal article
Language
en
Open access
closed
Locations
  • Free Radical Biology and Medicine (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
ferritin, iron release, oxidative damage, superoxide, iron-catalyzed oxidation, redox potential, one-electron oxidation, paraquat, doxorubicin, alloxan, radiolysis, metal-catalyzed oxidation, DNA damage, lipid peroxidation, protein oxidation
MeSH terms
Animals, Ferritins, Humans, Iron, Nitric Oxide, Oxidation-Reduction, Oxygen, Superoxides, Lipid Peroxidation, Xenobiotics

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