Change search
ReferencesLink to record
Permanent link

Direct link
The role of lysosomes in iron metabolism and recycling
Linköping University, Department of Medical and Health Sciences, Pharmacology. Linköping University, Faculty of Health Sciences.
University of Louisville.
Linköping University, Department of Medical and Health Sciences, Pharmacology. Linköping University, Faculty of Health Sciences.
2011 (English)In: International Journal of Biochemistry and Cell Biology, ISSN 1357-2725, E-ISSN 1878-5875, Vol. 43, no 12, 1686-1697 p.Article, review/survey (Refereed) Published
Abstract [en]

Iron is the most abundant transition metal in the earths crust. It cycles easily between ferric (oxidized; Fe(III)) and ferrous (reduced; Fe(II)) and readily forms complexes with oxygen, making this metal a central player in respiration and related redox processes. However, loose iron, not within heme or iron-sulfur cluster proteins, can be destructively redox-active, causing damage to almost all cellular components, killing both cells and organisms. This may explain why iron is so carefully handled by aerobic organisms. Iron uptake from the environment is carefully limited and carried out by specialized iron transport mechanisms. One reason that iron uptake is tightly controlled is that most organisms and cells cannot efficiently excrete excess iron. When even small amounts of intracellular free iron occur, most of it is safely stored in a non-redox-active form in ferritins. Within nucleated cells, iron is constantly being recycled from aged iron-rich organelles such as mitochondria and used for construction of new organelles. Much of this recycling occurs within the lysosome, an acidic digestive organelle. Because of this, most lysosomes contain relatively large amounts of redox-active iron and are therefore unusually susceptible to oxidant-mediated destabilization or rupture. In many cell types, iron transit through the lysosomal compartment can be remarkably brisk. However, conditions adversely affecting lysosomal iron handling (or oxidant stress) can contribute to a variety of acute and chronic diseases. These considerations make normal and abnormal lysosomal handling of iron central to the understanding and, perhaps, therapy of a wide range of diseases.

Place, publisher, year, edition, pages
Elsevier , 2011. Vol. 43, no 12, 1686-1697 p.
Keyword [en]
Autophagy; Iron; Iron-binding proteins; Lipofuscin; Lysosomes
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-73315DOI: 10.1016/j.biocel.2011.08.016ISI: 297491700007OAI: diva2:472074
Available from: 2012-01-03 Created: 2012-01-02 Last updated: 2012-01-12

Open Access in DiVA

fulltext(869 kB)2154 downloads
File information
File name FULLTEXT01.pdfFile size 869 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Kurz, TinoBrunk, Ulf
By organisation
PharmacologyFaculty of Health Sciences
In the same journal
International Journal of Biochemistry and Cell Biology
Medical and Health Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 2154 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 107 hits
ReferencesLink to record
Permanent link

Direct link