Cited by 761Iron Metabolism and DisordersFerroptosis and cancer prognosisNeurological diseases and metabolism

Regulation of Iron Metabolism by Hepcidin

Nemeth, Elizabeta, Ganz, Tomas·2006·Annual Review of Nutrition

Abstract

▪ Abstract Hepcidin, a peptide hormone made in the liver, is the principal regulator of systemic iron homeostasis. Hepcidin controls plasma iron concentration and tissue distribution of iron by inhibiting intestinal iron absorption, iron recycling by macrophages, and iron mobilization from hepatic stores. Hepcidin acts by inhibiting cellular iron efflux through binding to and inducing the degradation of ferroportin, the sole known cellular iron exporter. Synthesis of hepcidin is homeostatically increased by iron loading and decreased by anemia and hypoxia. Hepcidin is also elevated during infections and inflammation, causing a decrease in serum iron levels and contributing to the development of anemia of inflammation, probably as a host defense mechanism to limit the availability of iron to invading microorganisms. At the opposite side of the spectrum, hepcidin deficiency appears to be the ultimate cause of most forms of hemochromatosis, either due to mutations in the hepcidin gene itself or due to mutations in the regulators of hepcidin synthesis. The emergence of hepcidin as the pathogenic factor in most systemic iron disorders should provide important opportunities for improving their diagnosis and treatment.

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Crossref · 10.1146/annurev.nutr.26.061505.111303

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87 of 87 references verified0 citation errors · 0 not checkable

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  • Once secreted, HAMP circulates and reaches the duodenum and spleen where it tags the iron exporter FPN1 for internalization from the cell membrane and subsequent degradation in the proteasome.

    “Once secreted, HAMP circulates and reaches the duodenum and spleen where it tags the iron exporter FPN1 for internalization from the cell membrane and subsequent degradation in the proteasome (Nemeth and Ganz, 2006).”

    From Iron in infection and immunity (2020) · cites this paper as Nemeth and Ganz, 2006

  • The presence of Fpn1 in the absorptive epithelium is under negative control of hepcidin, which is mainly secreted by hepatocytes in response to high circulating and tissue amounts of iron or upon stimulation by inflammatory mediators.

    “The presence of Fpn1 in the absorptive epithelium is under negative control of hepcidin, which is mainly secreted by hepatocytes in response to high circulating and tissue amounts of iron or upon stimulation by inflammatory mediators [171, 229].”
  • The key to systemic iron homeostasis lies with hepcidin (HAMP) regulation.

    “The key to systemic iron homeostasis lies with hepcidin (HAMP) regulation. 37”

    From The battle for iron in enteric infections (2020) · cites this paper as [37]

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Authors
Nemeth, E., & Ganz, T.
Affiliations
University of California, Los Angeles (US)
Venue
Annual Review of Nutrition
Published
2006-08-01
Volume
26
Issue
1
Pages
323-342
ISSN
  • 0199-9885 (ISSN-L)
  • 1545-4312
OpenAlex
W2153145418
Cited by
756
References
89
Citations by year
2026: 10 · 2025: 26 · 2024: 26 · 2023: 32 · 2022: 28 · 2021: 39 · 2020: 47 · 2019: 27 · 2018: 29 · 2017: 33 · 2016: 38 · 2015: 38 · 2014: 57 · 2013: 39 · 2012: 41
FWCI
6.08
Type
journal article
Language
en
Open access
closed
Locations
  • Annual Review of Nutrition (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (DK065029, R01DK065029)
Topics
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Ferroptosis and cancer prognosis
  • Life Sciences › Neuroscience › Neurology › Neurological diseases and metabolism
Keywords
hepcidin, iron metabolism, iron homeostasis, ferroportin, intestinal iron absorption, hepatic iron stores, anemia of chronic disease, iron deficiency anemia, hemochromatosis, hypoxia, infection, inflammation, iron efflux
MeSH terms
Hemochromatosis, Homeostasis, Humans, Inflammation, Iron, Iron Metabolism Disorders, Antimicrobial Cationic Peptides, Hepcidins

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