A Comparison of the Free Radical Properties of Several Anthracycline Anti-Tumour Drugs and Some of Their Analogues
- 1 January 1988
- journal article
- Published by Taylor & Francis in Free Radical Research Communications
- Vol. 5 (3) , 169-176
- https://doi.org/10.3109/10715768809066926
Abstract
NADPH consumption and esr spectroscopy have been used to study the rate of formation and signal intensity of free radicals produced by various anthracycline anti-tumour drugs in rat liver microsomal extract. The drugs investigated were Adriamycin, 4'Deoxyadriamycin, Daunorubicin, 4 Demethoxydaunorubicin and Carminomycin. Pulse radiolysis was also used to determine the case of reduction of each of the analogues to its semiquinone radical and some kinetic properties of the radicals produced. It is believed that the occurrence of reactions other than dismutation could be responsible for the shortened lifetimes of the semiquinone radicals observed in biological systems.Keywords
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