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1996•Anti-Cancer DrugsRequires access

The effect of dexrazoxane (ICRF-187) on doxorubicin- and daunorubicin-mediated growth inhibition of Chinese hamster ovary cells

Brian B. Hasinoff, Jack C. Yalowich, Yangzhi Ling, Joan L. Buss

Open publisher page 35 citations

Abstract

Dexrazoxane (ICRF-187) is clinically used to reduce doxorubicin-induced cardiotoxicity. Because dexrazoxane, doxorubicin and daunorubicin all act on DNA topoisomerase II, a study was undertaken to see what effect dexrazoxane had on the growth inhibitory effects of doxorubicin and daunorubicin towards Chinese hamster ovary cells. Dexrazoxane exhibited significant antagonism of doxorubicin- and daunorubicin-mediated growth inhibition when the cells were preincubated with dexrazoxane before the anthracycline was added. Continuous exposure of cells to either anthracycline and low concentrations of dexrazoxane resulted in additive growth inhibitory effects at low anthracycline concentrations, and no effect at higher anthracycline concentrations.

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What this paper is about

Dexrazoxane (ICRF-187) is clinically used to reduce doxorubicin-induced cardiotoxicity. Because dexrazoxane, doxorubicin and daunorubicin all act on DNA topoisomerase II, a study was undertaken to see what effect dexrazoxane had on the growth inhibitory effects of doxorubicin and daunorubicin towards Chinese hamster ovary cells. Dexrazoxane exhibited significant antagonism of doxorubicin- and daunorubicin-mediated growth inhibition when the cells were preincubated with dexrazoxane before the anthracycline was added. Continuous exposure of cells to either anthracycline and low concentrations of dexrazoxane resulted in additive growth inhibitory effects at low anthracycline concentrations, and no effect at higher anthracycline concentrations.

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Available abstract

Dexrazoxane (ICRF-187) is clinically used to reduce doxorubicin-induced cardiotoxicity. Because dexrazoxane, doxorubicin and daunorubicin all act on DNA topoisomerase II, a study was undertaken to see what effect dexrazoxane had on the growth inhibitory effects of doxorubicin and daunorubicin towards Chinese hamster ovary cells. Dexrazoxane exhibited significant antagonism of doxorubicin- and daunorubicin-mediated growth inhibition when the cells were preincubated with dexrazoxane before the anthracycline was added. Continuous exposure of cells to either anthracycline and low concentrations of dexrazoxane resulted in additive growth inhibitory effects at low anthracycline concentrations, and no effect at higher anthracycline concentrations.

Key concepts: Dexrazoxane, Anthracycline, Daunorubicin, Doxorubicin, Chinese hamster ovary cell, Pharmacology, Chemistry, Hamster

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The effect of dexrazoxane (ICRF-187) on doxorubicin- and daunorubicin-mediated growth inhibition of Chinese hamster ovary cells — Research Paper | ScholarLens