PMID: 6402697Mar 1, 1983Paper

Spindle disturbances in mammalian cells. II. Induction of viable aneuploid/polyploid cells and multiple chromatid exchanges after treatment of V79 Chinese hamster cells with carbaryl. Modifying effects of glutathione and S9

Mutation Research
A Onfelt, I Klasterska

Abstract

Treatment of V79 cells with carbaryl increased the frequency of cells with elevated chromosome numbers (greater than 22). This effect of carbaryl was inhibited by simultaneous addition of glutathione or S9. Although selective forces seemed to act against cells with increased chromosome numbers, such cells were still significantly more frequent in treated compared with control cultures 74 h after treatment. In addition, a high adaptive value for these remaining aneuploid/polyploid cells was indicated because they were able to go through 2 successive rounds of replication immediately before fixation to the same extent as cells with chromosome numbers considered normal (21/22) for this cell line. Multiple chromatid exchanges were also observed after carbaryl treatment. The lack of single exchange events indicates that the effect may be systemic. However, additional experiments are required before this hypothesis can be confirmed or discarded. Considering the results obtained and the possible importance of gene dosage for tumor promotion, it is suggested that carbaryl should be tested for tumor promotion in vivo.

Citations

Jan 1, 1986·Mutation Research·S M Galloway, J L Ivett
Jun 1, 1994·Mutation Research·S M GallowayT Sofuni
Nov 10, 2007·Archives of Toxicology·Susanne B DornJos P M Lommerse
May 31, 2007·International Journal of Cancer. Journal International Du Cancer·Rajeev MahajanMichael C R Alavanja
Dec 24, 2004·Toxicological Sciences : an Official Journal of the Society of Toxicology·Yankai XiaXinru Wang
Nov 25, 2004·Alternatives to Laboratory Animals : ATLA·Shrawan K Gupta, Prem N Saxena

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