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| Citation | Frei, H., Clements, J., Howe, D., Wurgler, F.E. (1992). The genotoxicity of the anti-cancer drug mitoxantrone in somatic and germ cells of Drosophila melanogaster. Mutat. Res. 279(): 21--33. (Export to RIS) | ||
| FlyBase ID | FBrf0057296 | ||
| Publication Type | Research paper | ||
| PubMed ID | 1374529 | ||
| PubMed Abstract | The novel antineoplastic drug mitoxantrone was studied for its genotoxic effects in Drosophila melanogaster. In male germ cells, the clinical preparation Novantrone, the dihydrochloride salt of mitoxantrone, did not induce sex-linked recessive lethal mutations in feeding and injection experiments with adult flies, although statistically the results were inconclusive rather than truly negative. However, the free base mitoxantrone was weakly, but significantly genotoxic in this test (0.14% lethals/mM exposure concentration); this is most probably the result of prolonged exposure. On the other hand, both forms of mitoxantrone assayed were clearly genotoxic in the somatic mutation and recombination test of the wing. This test assays the cells of the proliferating imaginal wing discs of larvae. Depending on the feeding method used, the overall clone induction frequency was in the range of about 2-6 x 10(-5) per cell and cell generation and per mM exposure dose. Correction of these frequencies according to mean clone size led to slightly higher estimates (by about 5-25% higher). Although the majority of the clone induction events are due to mitotic recombination, a significant proportion can be attributed to mutational events (gene and chromosome mutations). The genotoxicity of mitoxantrone seems to depend mainly on impaired DNA synthesis in cycling cells owing to the compound's ability to inhibit topoisomerase II by intercalation into DNA. | ||
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| Language of Publication | English | ||
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| Publication Type | Journal | ||
| Abbreviation | Mutat. Res. | ||
| Title | Mutation Research | ||
| Publication Year | 1964- | ||
| ISBN/ISSN | 0027-5107 | ||
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Data from Reference
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| Genes (2)
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