The lack of correlation between toxicity and free radical formation of two diaziridinyl benzoquinones.

Abstract:

:L1210 and K562 leukaemic cells have been used to study the relationship between cytotoxicity and free radical production by two aziridinyl benzoquinones, 2,5-bis(carboethoxyamino)3,6-diaziridinyl-1,4-benzoquinone (AZQ) and 2,5-bis(2-hydroxyethylamino)-3,6-diaziridinyl-1,4-benzoquinone (BZQ). BZQ showed a high level of toxicity in both cell lines, but no ESR signal was detectable, while AZQ readily produced an ESR signal but much lower cytotoxicity was observed, particularly in L1210 cells. The rate of superoxide formation was measured for each drug. The results demonstrate that cell killing and free radical production do not necessarily concur.

journal_name

Biochem Pharmacol

journal_title

Biochemical pharmacology

authors

Lea JS,Garner HJ,Butler J,Hoey BM,Ward TH

doi

10.1016/0006-2952(88)90551-5

subject

Has Abstract

pub_date

1988-05-15 00:00:00

pages

2023-5

issue

10

eissn

0006-2952

issn

1873-2968

pii

0006-2952(88)90551-5

journal_volume

37

pub_type

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