Carcinogenesis, Vol. 21, No. 8, 1521-1526,
August 2000
© 2000 Oxford University Press
Cancer Biology |
Induction of microsatellite mutations by oxidative agents in human lung cancer cell lines
Department of Toxicology, National Institute of Occupational Health, PO Box 8149 Dep., N-0033 Oslo, Norway
Genomic instability has been associated with cancer development. Oxidative DNA damage seems to contribute to genetic instability observed in cancer. We have used human lung cancer cell lines carrying a plasmid vector containing a (CA)13 microsatellite sequence to study frameshift mutations mediated by ROS-generating chemicals paraquat and hydrogen peroxide. Exposure of the cells to both paraquat and hydrogen peroxide resulted in significantly higher mutation frequencies compared with untreated control cells. Mutation frequencies up to 27-fold higher than the spontaneous mutation frequencies were obtained. The majority of the reversion mutants contained frameshift mutations within the target sequence. However, the pattern of deletions and additions was significantly different in the two cell lines. These results indicate that oxidative damage may play a role in instability of microsatellite sequences in vivo.
![]()
CiteULike
Connotea
Del.icio.us What's this?
This article has been cited by other articles:
![]() |
E. G. Tzortzaki and N. M. Siafakas A hypothesis for the initiation of COPD Eur. Respir. J., August 1, 2009; 34(2): 310 - 315. [Abstract] [Full Text] [PDF] |
||||
![]() |
W. Zhu, W. Qin, P. Bradley, A. Wessel, C. L. Puckett, and E. R. Sauter Mitochondrial DNA mutations in breast cancer tissue and in matched nipple aspirate fluid Carcinogenesis, January 1, 2005; 26(1): 145 - 152. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. A. VanderVeen, M. F. Hashim, Y. Shyr, and L. J. Marnett Induction of frameshift and base pair substitution mutations by the major DNA adduct of the endogenous carcinogen malondialdehyde PNAS, November 25, 2003; 100(24): 14247 - 14252. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. Augusto-Pinto, S. M. R. Teixeira, S. D. J. Pena, and C. R. Machado Single-Nucleotide Polymorphisms of the Trypanosoma cruzi MSH2 Gene Support the Existence of Three Phylogenetic Lineages Presenting Differences in Mismatch-Repair Efficiency Genetics, May 1, 2003; 164(1): 117 - 126. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. J. C. Slebos, D. S. Oh, D. M. Umbach, and J. A. Taylor Mutations in Tetranucleotide Repeats following DNA Damage Depend on Repeat Sequence and Carcinogenic Agent Cancer Res., November 1, 2002; 62(21): 6052 - 6060. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Sanchez-Cespedes, P. Parrella, S. Nomoto, D. Cohen, Y. Xiao, M. Esteller, C. Jeronimo, R. C. K. Jordan, T. Nicol, W. M. Koch, et al. Identification of a Mononucleotide Repeat as a Major Target for Mitochondrial DNA Alterations in Human Tumors Cancer Res., October 1, 2001; 61(19): 7015 - 7019. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. A. Loeb A Mutator Phenotype in Cancer Cancer Res., April 1, 2001; 61(8): 3230 - 3239. [Abstract] [Full Text] |
||||




