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Cancer Res. 1999 Jul 1;59(13):3038-40.

N-acetyltransferase 2 influences cancer prevalence in hMLH1/hMSH2 mutation carriers.

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  • 1Research Group Human Genetics, University Hospital, Basel, Switzerland.

Abstract

Hereditary nonpolyposis colorectal cancer (HNPCC), an inherited cancer predisposition syndrome, has been associated with germline mutations in DNA mismatch repair (MMR) genes. Because a deficiency in MMR does not predict a specific cancer phenotype, modifying genes may account in part for the variation in disease expression. We determined the N-acetyltransferase 2 (NAT2) genotype in 26 unaffected and 52 cancer-affected hMLH1/hMSH2 mutation carriers coming from 21 Swiss HNPCC families. Slow acetylators were found to be significantly (P < 0.03) more prevalent in the group of affected mutation carriers. Our results suggest a protective effect of the NAT2 rapid acetylator phenotype, an observation that could have implications for genetic counseling and management of MMR gene mutation carriers.

PMID:
10397239
[PubMed - indexed for MEDLINE]
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