Physiological and pathophysiological mechanisms of hepcidin regulation: clinical implications for iron disorders
- 14 December 2020
- journal article
- review article
- Published by Wiley in British Journal of Haematology
- Vol. 193 (5), 882-893
- https://doi.org/10.1111/bjh.17252
Abstract
The discovery of hepcidin has provided a solid foundation for understanding the mechanisms of systemic iron homeostasis and the aetiologies of iron disorders. Hepcidin assures the balance of circulating and stored iron levels for multiple physiological processes including oxygen transport and erythropoiesis, while limiting the toxicity of excess iron. The liver is the major site where regulatory signals from iron, erythropoietic drive and inflammation are integrated to control hepcidin production. Pathologically, hepcidin dysregulation by genetic inactivation, ineffective erythropoiesis, or inflammation leads to diseases of iron deficiency or overload such as iron‐refractory iron‐deficiency anaemia, anaemia of inflammation, iron‐loading anaemias and hereditary haemochromatosis. In the present review, we discuss recent insights into the molecular mechanisms governing hepcidin regulation, how these pathways are disrupted in iron disorders, and how this knowledge is being used to develop novel diagnostic and therapeutic strategies.Funding Information
- National Institute of Diabetes and Digestive and Kidney Diseases (R01DK087727)
- Massachusetts General Hospital
- Universidad Politécnica de Madrid
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