Title : Effects of hyperoxia and iron on iron regulatory protein-1 activity and the ferritin synthesis in mouse peritoneal macrophages.

Pub. Date : 2001 Jan 12

PMID : 11341946






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1 Effects of hyperoxia and iron on iron regulatory protein-1 activity and the ferritin synthesis in mouse peritoneal macrophages. Iron aconitase 1 Mus musculus
2 In this paper, we have investigated the effect of hyperoxia and iron on the binding activity of IRP-1 and the ferritin synthesis in mouse peritoneal macrophages. Iron aconitase 1 Mus musculus
3 Iron diminished the IRP-1-binding activity and the enhanced synthesis of ferritin. Iron aconitase 1 Mus musculus
4 Consistently, hypoxia-induced loss of binding activity of IRP-1 and the enhanced synthesis of ferritin were blocked in the presence of an iron chelator deferoxamine. Iron aconitase 1 Mus musculus
5 These alterations of the binding activity of IRP-1 in response to oxygen and iron were not reproduced in the cell-free extract. Iron aconitase 1 Mus musculus
6 The data suggest that in the macrophages oxygen and iron inversely act on the binding activity of IRP-1 and the ferritin synthesis, and that intracellular mechanism(s) to sense iron and/or oxygen is required for these actions. Iron aconitase 1 Mus musculus
7 The data suggest that in the macrophages oxygen and iron inversely act on the binding activity of IRP-1 and the ferritin synthesis, and that intracellular mechanism(s) to sense iron and/or oxygen is required for these actions. Iron aconitase 1 Mus musculus