期刊
ANTIOXIDANTS & REDOX SIGNALING
卷 10, 期 6, 页码 997-1030出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/ars.2007.1893
关键词
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资金
- NIDDK NIH HHS [DK-60007, R01 DK060007] Funding Source: Medline
Maintenance of proper labile iron levels is a critical component in preserving homeostasis. Iron is a vital element that is a constituent of a number of important macromolecules, including those involved in energy production, respiration, DNA synthesis, and metabolism; however, excess labile iron is potentially detrimental to the cell or organism or both because of its propensity to participate in oxidation-reduction reactions that generate harmful free radicals. Because of this dual nature, elaborate systems tightly control the concentration of available iron. Perturbation of normal physiologic iron concentrations may be both a cause and a consequence of cellular damage and disease states. This review highlights the molecular mechanisms responsible for regulation of iron absorption, transport, and storage through the roles of key regulatory proteins, including ferroportin, hepcidin, ferritin, and frataxin. In addition, we present an overview of the relation between iron regulation and oxidative stress and we discuss the role of functional iron overload in the pathogenesis of hemochromatosis, neurodegeneration, and inflammation.
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