Induction of petite mutants in yeast Saccharomyces cerevisiae by the anticancer drug dequalinium.
In: Mutation research, Jg. 572 (2005-05-02), Heft 1-2, S. 84
Online
academicJournal
Zugriff:
Dequalinium (DEQ), a drug with both antimicrobial and anticancer activity, induced the formation of petite (respiration-deficient) mutants in the yeast Saccharomyces cerevisiae. DEQ was found to be approximately 50-fold more potent than ethidium bromide (EB) at inducing petites. Analysis of the DEQ-induced petite mutants indicated a complete loss of mitochondrial DNA (<1 copy/cell). Prior to the loss of mtDNA, DEQ caused cleavage of the mtDNA into a population of fragments 30-40kbp in size suggesting that this drug causes petites by inducing a breakdown of mtDNA. The selective effect of DEQ on yeast mtDNA may underlie the antifungal activity of this chemotherapeutic agent.
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Induction of petite mutants in yeast Saccharomyces cerevisiae by the anticancer drug dequalinium.
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Autor/in / Beteiligte Person: | Schneider-Berlin, KR ; Bonilla, TD ; Rowe, TC |
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Zeitschrift: | Mutation research, Jg. 572 (2005-05-02), Heft 1-2, S. 84 |
Veröffentlichung: | Amsterdam : Elsevier, [1964-, 2005 |
Medientyp: | academicJournal |
ISSN: | 0027-5107 (print) |
DOI: | 10.1016/j.mrfmmm.2004.12.010 |
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