Cancer risks for monoallelic MUTYH mutation carrie... [Int J Cancer. 2010] - PubMed result

Int J Cancer. 2010 Dec 17. [Epub ahead of print]
Cancer risks for monoallelic MUTYH mutation carriers with a family history of colorectal cancer.

Win AK, Cleary SP, Dowty JG, Baron JA, Young JP, Buchanan DD, Southey MC, Burnett T, Parfrey PS, Green RC, Le Marchand L, Newcomb PA, Haile RW, Lindor NM, Hopper JL, Gallinger S, Jenkins MA.

Centre for Molecular, Environmental, Genetic and Analytic Epidemiology, The University of Melbourne, Parkville, Victoria, Australia.

Abstract

Cancer risks for a person who has inherited a MUTYH mutation from only one parent (monoallelic mutation carrier) are uncertain. Using the Colon Cancer Family Registry and Newfoundland Familial Colon Cancer Registry, we identified 2,179 first- and second-degree relatives of 144 incident colorectal cancer (CRC) cases who were monoallelic or biallelic mutation carriers ascertained by sampling population complete cancer registries in the USA, Canada and Australia. Using Cox regression weighted to adjust for sampling on family history, we estimated that the country-, age- and sex-specific standardized incidence ratios (SIRs) for monoallelic mutation carriers, compared with the general population, were: 2.04 (95% confidence interval, CI 1.56-2.70; P <0.001) for CRC, 3.24 (95%CI 2.18-4.98; P <0.001) for gastric cancer, 3.09 (95%CI 1.07-12.25; P = 0.07) for liver cancer, and 2.33 (95%CI 1.18-5.08; P = 0.02) for endometrial cancer. Age-specific cumulative risks to age 70 years, estimated using the SIRs and USA population incidences, were: for CRC, 6% (95%CI 5-8%) for men and 4% (95%CI 3-6%) for women; for gastric cancer, 2% (95%CI 1-3%) for men and 0.7% (95%CI 0.5-1%) for women; for liver cancer, 1% (95%CI 0.3-3%) for men and 0.3% (95%CI 0.1-1%) for women; and for endometrial cancer, 4% (95%CI 2-8%). There was no evidence of increased risks for cancers of the brain, pancreas, kidney, lung, breast or prostate. Monoallelic MUTYH mutation carriers with a family history of CRC, such as those identified from screening multiple-case CRC families, are at increased risk of colorectal, gastric, endometrial and possibly liver cancers. PMID: 21171015 [PubMed - as supplied by publisher] Cancer risks for monoallelic MUTYH mutation carrie... [Int J Cancer. 2010] - PubMed result