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Autoimmun Rev. 2007 Aug;6(7):457-63. Epub 2007 Feb 16.

Ferritin in autoimmune diseases.

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1
Department of Medicine C, Wolfson Medical Center, Israel.

Abstract

Iron, an essential element for many important cellular functions in all living organisms, can catalyze the formation of potentially toxic free radicals. Excessive iron is sequestered by ferritin in a nontoxic and readily available form in a cell. Ferritin is composed of 24 subunits of different proportions of two functionally distinct subunits: ferritin H and L. The expression of ferritin is under delicate control and is regulated at both the transcriptional and post-transcriptional levels by iron, cytokines, hormones, and oxidative stress. Mutations in the ferritin gene cause the hereditary hyperferritinemia-cataract syndrome and neuroferritinopathy. Hyperferritinemia is associated with inflammation, infections, and malignancies. While elevated levels of ferritin are characteristic of adult-onset Still's disease and hemophagocytic syndrome, both associated with inflammation, it has scantly been evaluated in other autoimmune diseases. In this review, we describe ferritin structure and function, hyperferritinemia in disease states and in autoimmune diseases.

PMID:
17643933
DOI:
10.1016/j.autrev.2007.01.016
[Indexed for MEDLINE]
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