Cited by 280Iron Metabolism and DisordersNeurological diseases and metabolismTrace Elements in Health

Brain Iron Metabolism

Rouault, Tracey A., Cooperman, Sharon·2006·Seminars in Pediatric Neurology

Abstract

Brain iron uptake is regulated by the expression of transferrin receptor 1 in endothelial cells of the blood-brain barrier. Transferrin-bound iron in the systemic circulation is endocytosed by brain endothelial cells, and elemental iron is released to brain interstitial fluid, likely by the iron exporter, ferroportin. Transferrin synthesized by oligodendrocytes in the brain binds much of the iron that traverses the blood-brain barrier after oxidation of the iron, most likely by a glycophosphosinositide-linked ceruloplasmin found in astrocytic foot processes that ensheathe brain endothelial cells. Neurons acquire iron from diferric transferrin, but it is less clear how glial cells acquire iron. In aging mammals, iron accumulates in the basal ganglia, and iron accumulation is believed to contribute to neurodegenerative diseases, including Parkinson and Alzheimer disease. Here we consider the possibility that iron accumulations, which are often thought to facilitate free radical generation and oxidative damage, may contain insoluble iron that is unavailable for cellular use, and the pathology associated with iron accumulations may result from functional iron deficiency in some diseases.

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Crossref · 10.1016/j.spen.2006.08.002

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  • The cytosolic iron pool is highly regulated because it is an important source of iron for cytosolic and nuclear iron proteins and for mitochondria and other organelles.

    “The cytosolic iron pool is highly regulated because it is an important source of iron for numerous cytosolic and nuclear iron proteins, as well as being a source from which mitochondria and other organelles derive iron (Rouault and Cooperman, 2006).”

    From Iron, Oxidative Stress and Health (2012) · cites this paper as Rouault and Cooperman, 2006

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Authors
Rouault, T. A., & Cooperman, S.
Affiliations
National Institutes of Health (US)
Corresponding author
Rouault, Tracey A.
Venue
Seminars in Pediatric Neurology
Publisher
Elsevier BV
Published
2006-09
Volume
13
Issue
3
Pages
142-148
ISSN
1071-9091 (ISSN-L)
OpenAlex
W2049888915
Cited by
280
References
91
Citations by year
2026: 8 · 2025: 10 · 2024: 8 · 2023: 17 · 2022: 14 · 2021: 13 · 2020: 7 · 2019: 9 · 2018: 13 · 2017: 16 · 2016: 12 · 2015: 13 · 2014: 18 · 2013: 23 · 2012: 19
FWCI
2.15
Type
journal article
Language
en
Open access
closed
Locations
  • Seminars in Pediatric Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institutes of Health
Topics
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Life Sciences › Neuroscience › Neurology › Neurological diseases and metabolism
  • Health Sciences › Nursing › Nutrition and Dietetics › Trace Elements in Health
Keywords
brain iron metabolism, blood-brain barrier, transferrin receptor 1, brain endothelial cells, ferroportin, transferrin, oligodendrocytes, ceruloplasmin, astrocytes, iron accumulation, basal ganglia, Parkinson's disease, Alzheimer's disease, neurodegeneration, iron deficiency, oxidative damage, free radicals
MeSH terms
Animals, Blood-Brain Barrier, Brain, Central Nervous System, Humans, Iron, Nerve Degeneration, Iron Metabolism Disorders

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