Cited by 151Iron Metabolism and DisordersHeme Oxygenase-1 and Carbon MonoxideHemoglobin structure and function

Coupling Heme and Iron Metabolism via Ferritin H Chain

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Gozzelino, Raffaella, Soares, Miguel P.·2014·Antioxidants & Redox Signaling

Abstract

SIGNIFICANCE: Inflammation and immunity can be associated with varying degrees of heme release from hemoproteins, eventually leading to cellular and tissue iron (Fe) overload, oxidative stress, and tissue damage. Presumably, these deleterious effects contribute to the pathogenesis of systemic infections. RECENT ADVANCES: Heme release from hemoglobin sensitizes parenchyma cells to undergo programmed cell death in response to proinflammatory cytokines, such as tumor necrosis factor. This cytotoxic effect is driven by a mechanism involving intracellular accumulation of free radicals, which sustain the activation of the c-Jun N-terminal kinase (JNK) signaling transduction pathway. While heme catabolism by heme oxygenase-1 (HO-1) prevents programmed cell death, this cytoprotective effect requires the co-expression of ferritin H (heart/heavy) chain (FTH), which controls the pro-oxidant effect of labile Fe released from the protoporphyrin IX ring of heme. This antioxidant effect of FTH restrains JNK activation, whereas JNK activation inhibits FTH expression, a cross talk that controls metabolic adaptation to cellular Fe overload associated with systemic infections. CRITICAL ISSUES AND FUTURE DIRECTIONS: Identification and characterization of the mechanisms via which FTH provides metabolic adaptation to tissue Fe overload should provide valuable information to our current understanding of the pathogenesis of systemic infections as well as other immune-mediated inflammatory diseases.

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Crossref · 10.1089/ars.2013.5666

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  • Cytokine-driven NF-κB activation induces FTH transcription, supporting further retention of iron in macrophages.

    “Cytokine-driven NF-jB activation induces FTH transcription, supporting further retention of Fe in Mø [54,55] (Fig 2).”

    From The Iron age of host–microbe interactions (2015) · cites this paper as [54]

  • Heme catabolism and subsequent intracellular iron storage by ferritin confers host protection against the blood stage of Plasmodium infection while increasing susceptibility to intracellular Salmonella.

    “For example, heme catabolism by and subsequent intracellular Fe storage by ferritin [54,107] confers host protection against the blood stage of Plasmodium infection while increasing susceptibility to the intracellular bacteria Salmonella [108].”

    From The Iron age of host–microbe interactions (2015) · cites this paper as [54]

  • HO-1 avoids tissue Fe overload and tissue damage while sustaining Fe supply to erythropoiesis to maintain Fe homeostasis during infection.

    “When coupled to other mechanisms regulating Fe homeostasis, HO-1 avoids tissue Fe overload and tissue damage while sustaining Fe supply to erythropoiesis to maintain Fe homeostasis during infection [38,54,219,220] (Fig 4).”

    From The Iron age of host–microbe interactions (2015) · cites this paper as [54]

  • In systemic infections, the protective effects of HO-1 are assisted by FTH.

    “In the context of systemic infections, the protective effects exerted by HO-1 are assisted by FTH [54,107] (Fig 4).”

    From The Iron age of host–microbe interactions (2015) · cites this paper as [54]

  • The most abundant pool of Fe in mammals are the prosthetic heme groups of hemoglobin in RBC, followed by myoglobin and cytochromes.

    “The most abundant pool of Fe in mammals are the prosthetic heme groups of hemoglobin in red blood cells (RBC), followed by the heme groups of myoglobin in muscle cells and those of cytochromes and other ubiquitously expressed hemoproteins in all cells[38,54].”

    From The Iron age of host–microbe interactions (2015) · cites this paper as [54]

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Authors
Gozzelino, R., & Soares, M. P.
Affiliations
Instituto Gulbenkian de Ciência (PT)
Venue
Antioxidants & Redox Signaling
Published
2014-04
Volume
20
Issue
11
Pages
1754-1769
ISSN
  • 1523-0864 (ISSN-L)
  • 1557-7716
OpenAlex
W2043791600
Cited by
151
References
200
Citations by year
2026: 6 · 2025: 14 · 2024: 14 · 2023: 11 · 2022: 9 · 2021: 10 · 2020: 12 · 2019: 16 · 2018: 11 · 2017: 14 · 2016: 10 · 2015: 13 · 2014: 9 · 2013: 1 · 2012: 1
FWCI
1.68
Type
journal article
Language
en
Open access
Locations
  • Antioxidants and Redox Signaling (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heme Oxygenase-1 and Carbon Monoxide
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hemoglobin structure and function
Keywords
heme metabolism, iron metabolism, heme release, hemoglobin, heme oxygenase-1, c-Jun N-terminal kinase, programmed cell death, TNF-α, oxidative stress, iron overload, systemic infection, inflammation, protoporphyrin IX, antioxidant defense, immune-mediated inflammatory diseases
MeSH terms
Animals, Apoferritins, Heme, Homeostasis, Humans, Immunity, Innate, Iron, Heme Oxygenase-1

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