The iron transporter ferroportin is regulated by ascorbate
نویسندگان
چکیده
منابع مشابه
Iron Transport through Ferroportin Is Induced by Intracellular Ascorbate and Involves IRP2 and HIF2α
A few tightly regulated transport proteins mediate iron absorption across the intestinal epithelium. At the basolateral border of intestinal cells there is one identified transporter, ferroportin, for the transfer of intracellular iron to the vascular system. Here, we investigate the effects of ascorbate (vitamin C) on the regulation of ferroportin in human intestinal Caco-2 cells using ELISA a...
متن کاملIron release from macrophages after erythrophagocytosis is up-regulated by ferroportin 1 overexpression and down-regulated by hepcidin.
Ferroportin 1 (FPN1) is transmembrane protein involved in iron homeostasis. In the duodenum, FPN1 localizes to the basolateral surface of enterocytes where it appears to export iron out of the cell and into the portal circulation. FPN1 is also abundantly expressed in reticuloendothelial macrophages of the liver, spleen, and bone marrow, suggesting that this protein serves as an iron exporter in...
متن کاملExpression of the iron transporter ferroportin in synaptic vesicles and the blood-brain barrier.
Iron homeostasis in the mammalian brain is an important and poorly understood subject. Transferrin-bound iron enters the endothelial cells of the blood-brain barrier from the systemic circulation, and iron subsequently dissociates from transferrin to enter brain parenchyma by an unknown mechanism. In recent years, several iron transporters, including the iron importer DMT1 (Ireg1, MTP, DCT1) an...
متن کاملVascular Endothelial Growth Factor Production is Regulated by Gene Polymorphisms
Background: Vascular endothelial growth factor (VEGF) has a key role in angiogene-sis and in transplantation. The level of VEGF is related to the differences in the DNA sequence of its promoter region. Objectives: In this study, the association between the combination of VEGF –1154 G and –2578 C alleles and VEGF production by LPS-stimulated PBMCs was investigated. In addition; the relationship ...
متن کاملAtPHT4;4 is a chloroplast-localized ascorbate transporter in Arabidopsis
Ascorbate is an antioxidant and coenzyme for various metabolic reactions in vivo. In plant chloroplasts, high ascorbate levels are required to overcome photoinhibition caused by strong light. However, ascorbate is synthesized in the mitochondria and the molecular mechanisms underlying ascorbate transport into chloroplasts are unknown. Here we show that AtPHT4;4, a member of the phosphate transp...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The FASEB Journal
سال: 2012
ISSN: 0892-6638,1530-6860
DOI: 10.1096/fasebj.26.1_supplement.641.20