Hypoxia-Inducible Factors Link Iron Homeostasis and Erythropoiesis
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چکیده
منابع مشابه
Regulation of erythropoiesis by hypoxia-inducible factors.
A classic physiologic response to systemic hypoxia is the increase in red blood cell production. Hypoxia-inducible factors (HIFs) orchestrate this response by inducing cell-type specific gene expression changes that result in increased erythropoietin (EPO) production in kidney and liver, in enhanced iron uptake and utilization and in adjustments of the bone marrow microenvironment that facilita...
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Hepcidin is a liver-derived hormone with a key role in iron homeostasis. In addition to iron, it is regulated by inflammation and hypoxia, although mechanisms of hypoxic regulation remain unclear. In hepatocytes, hepcidin is induced by bone morphogenetic proteins (BMPs) through a receptor complex requiring hemojuvelin (HJV) as a co-receptor. Type II transmembrane serine proteinase (TMPRSS6) ant...
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Iron is essential for many biological processes, including oxygen delivery, and its supply is tightly regulated. Hepcidin, a small peptide synthesized in the liver, is a key regulator of iron absorption and homeostasis in mammals. Hepcidin production is increased by iron overload and decreased by anemia and hypoxia; but the molecular mechanisms that govern the hepcidin response to these stimuli...
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The hypoxic response is a stress response triggered by low oxygen tension. Hypoxia-inducible factors (HIFs) play a prominent role in the pathobiology of hypoxia-associated conditions, including pulmonary hypertension (PH) and polycythemia. The c-Jun N-terminal protein kinase (JNK), a stress-activated protein kinase that consists of two ubiquitously expressed isoforms, JNK1 and JNK2, and a tissu...
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Introduction The tumor microenvironment is similar to an inflammatory focus, as it consists of a complex milieu of both innate and adaptive immune cells (1). Hypoxia is a characteristic feature of both tumors and inflammatory foci. Increased metabolic demand from rapid cell turnover, immune cell infiltration, and vascular disruption cause local O2 tension to decline. The decreased O2 tension of...
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ژورنال
عنوان ژورنال: Gastroenterology
سال: 2014
ISSN: 0016-5085
DOI: 10.1053/j.gastro.2013.12.031