The doxorubicin cardioprotective agent dexrazoxane (ICRF-187) induces endopolyploidy in rat neonatal myocytes through inhibition of DNA topoisomerase II.
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Hasinoff BB, Takeda K, Ferrans VJ, Yu ZX
The doxorubicin cardioprotective agent dexrazoxane (ICRF-187) induces endopolyploidy in rat neonatal myocytes through inhibition of DNA topoisomerase II.
Anticancer Drugs. 2002 Mar;13(3):255-8.
- PubMed ID
- 11984069 [ View in PubMed]
- Abstract
Dexrazoxane (ICRF-187), which is clinically used to reduce doxorubicin-induced cardiotoxicity, is also a potent catalytic inhibitor of DNA topoisomerase II. In this study we showed that dexrazoxane inhibited the division of neonatal rat ventricular myocytes in culture, and resulted in nuclear multilobulation (demonstrated by three-dimensional reconstruction of confocal images) and marked increases in nuclear size and DNA ploidy levels (as shown by flow cytometry). It was concluded that dexrazoxane interfered with cell division in cardiac myocytes by virtue of its ability to inhibit topoisomerase II.
DrugBank Data that Cites this Article
- Drug Targets
Drug Target Kind Organism Pharmacological Action Actions Dexrazoxane DNA topoisomerase 2-alpha Protein Humans YesInhibitorDetails