Effect of novel 1-alkyl-3-hydroxy-2-methylpyrid-4-one chelators on uptake and release of iron from macrophages.

Abstract:

:The effect of several iron chelators on iron uptake and release by mouse peritoneal macrophages has been investigated. The 1,2-dimethyl (L1) and 1-ethyl-2-methyl (L1NEt) derivatives of 3-hydroxypyrid-4-one markedly enhanced iron mobilisation from macrophages pulsed with 59Fe-transferrin-antitransferrin immune complexes and were more effective than desferrioxamine, maltol, or mimosine. Release increased with increasing chelator concentration. None of the chelators donated significant amounts of iron to macrophages, and none showed any cytotoxic effect. The synthetic alpha-ketohydroxypyridine chelators may therefore be active in removing iron from the reticuloendothelial system as well as from hepatocytes, and indeed may be superior to desferrioxamine.

journal_name

Am J Hematol

authors

Brock JH,Licéaga J,Arthur HM,Kontoghiorghes GJ

doi

10.1002/ajh.2830340106

subject

Has Abstract

pub_date

1990-05-01 00:00:00

pages

21-5

issue

1

eissn

0361-8609

issn

1096-8652

journal_volume

34

pub_type

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