Split dose cytotoxic experiments with misonidazole.

Abstract:

:The toxicity of misonidazole (1-(2-nitroimidazol-1-yl)-3-methoxy-2-propanol) towards mammalian cells in vitro has been determined as a function of O2 tension. Misonidazole under hypoxic conditions (less than 10 Parts/10(6) O2) shows the greatest toxicity. Split-dose experiments indicate that lethal damage can be "repaired" by O2, the magnitude of this repair being time dependent and a function of O2 concentration, with maximum repair in air seen after 2 h at 37 degree C. Unlike radiation damage this repair is not inhibited by modest hyperthermia (41 degrees C) during the split-dose interval. The implication of these results as regards the mechanism of misonidazole toxicity under anaerobic conditions is discussed.

journal_name

Br J Cancer

authors

Stratford IJ

doi

10.1038/bjc.1978.172

subject

Has Abstract

pub_date

1978-07-01 00:00:00

pages

130-6

issue

1

eissn

0007-0920

issn

1532-1827

journal_volume

38

pub_type

杂志文章
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