Cytotoxic and DNA-inhibitory effects of iron chelators on human leukaemic cell lines.

Abstract:

:Cytotoxic and DNA synthesis inhibitory effects of several iron chelators with different physicochemical properties have been tested in four myeloid leukaemic cell lines (U937, K562, ML2 and HL60). The small lipophilic chelators 8-hydroxyquinoline, tropolone and omadine at 2 X 10(-5) M, caused substantial inhibition of labelled leucine and thymidine uptake into cells and also cell death following 4-h incubation. These effects were approximately 10-fold increased when the drugs were pre-incubated with equimolar amounts of iron. Iron alone and hydrophilic chelators e.g. desferrioxamine had insignificant cytotoxic and DNA synthesis inhibitory effects under the same conditions.

journal_name

Hematol Oncol

journal_title

Hematological oncology

authors

Kontoghiorghes GJ,Piga A,Hoffbrand AV

doi

10.1002/hon.2900040303

subject

Has Abstract

pub_date

1986-07-01 00:00:00

pages

195-204

issue

3

eissn

0278-0232

issn

1099-1069

journal_volume

4

pub_type

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