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Nat Genet. 2005 Mar;37(3):320-7. Epub 2005 Feb 13.

Widespread and nonrandom distribution of DNA palindromes in cancer cells provides a structural platform for subsequent gene amplification.

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  • 1Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109-1024, USA.

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  • Nat Genet. 2010 Apr;42(4):361.


Breakage-fusion-bridge cycles contribute to chromosome instability and generate large DNA palindromes that facilitate gene amplification in human cancers. The prevalence of large DNA palindromes in cancer is not known. Here, by using a new microarray-based approach called genome-wide analysis of palindrome formation, we show that palindromes occur frequently and are widespread in human cancers. Individual tumors seem to have a nonrandom distribution of palindromes in their genomes, and a subset of palindromic loci is associated with gene amplification. This indicates that the location of palindromes in the cancer genome can serve as a structural platform that supports subsequent gene amplification. Genome-wide analysis of palindrome formation is a new approach to identify structural chromosome aberrations associated with cancer.

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