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Commentary 10.1172/JCI125509

At the crossroads of oxygen and iron sensing: hepcidin control of HIF-2α

Frank S. Lee

Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.

Address correspondence to: Frank S. Lee, Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, 605 Stellar Chance Labs, 422 Curie Blvd., Philadelphia, Pennsylvania 19104, USA. Phone: 215.898.4701; Email: franklee@pennmedicine.upenn.edu.

Find articles by Lee, F. in: JCI | PubMed | Google Scholar

First published December 10, 2018 - More info

Published in Volume 129, Issue 1 on January 2, 2019
J Clin Invest. 2019;129(1):72–74. https://doi.org/10.1172/JCI125509.
Copyright © 2019, American Society for Clinical Investigation

First published December 10, 2018 - Version history

Hepcidin is the master regulator of iron metabolism. It plays a key role in the regulation of iron transport across the duodenal epithelium, which in turn is dependent on the oxygen-regulated transcription factor hypoxia-inducible factor 2α (HIF-2α). In this issue of the JCI, Schwartz and colleagues show that duodenal HIF-2α is itself regulated by hepcidin, thereby indicating that this transcription factor is not only regulated by oxygen, but also by iron. This work indicates that the crosstalk between liver hepcidin and intestinal HIF-2α plays an important role during iron overload, systemic iron deficiency, and anemia.

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Copyright © 2019 American Society for Clinical Investigation
ISSN: 0021-9738 (print), 1558-8238 (online)

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