Germline mutations affecting the proofreading domains of POLE and POLD1 predispose to colorectal adenomas and carcinomas. / UK IBD Genetics Consortium and COLORS in IBD and Oxford IBD cohort study investigators and WGS500 Consortium.
In: Nature Genetics, Vol. 45, No. 2, 01.02.2013, p. 136-143.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Germline mutations affecting the proofreading domains of POLE and POLD1 predispose to colorectal adenomas and carcinomas
AU - UK IBD Genetics Consortium and COLORS in IBD and Oxford IBD cohort study investigators and WGS500 Consortium
AU - Palles, Claire
AU - Cazier, Jean Baptiste
AU - Howarth, Kimberley M.
AU - Domingo, Enric
AU - Jones, Angela M.
AU - Broderick, Peter
AU - Kemp, Zoe
AU - Spain, Sarah L.
AU - Almeida, Estrella Guarino
AU - Salguero, Israel
AU - Sherborne, Amy
AU - Chubb, Daniel
AU - Carvajal-Carmona, Luis G.
AU - Ma, Yusanne
AU - Kaur, Kulvinder
AU - Dobbins, Sara
AU - Barclay, Ella
AU - Gorman, Maggie
AU - Martin, Lynn
AU - Kovac, Michal B.
AU - Humphray, Sean
AU - Lucassen, Anneke
AU - Holmes, Christopher H.
AU - Bentley, David
AU - Donnelly, Peter
AU - Taylor, Jenny
AU - Petridis, Christos
AU - Roylance, Rebecca
AU - Sawyer, Elinor J.
AU - Kerr, David J.
AU - Clark, Susan
AU - Grimes, Jonathan
AU - Kearsey, Stephen E.
AU - Thomas, Huw J.W.
AU - McVean, Gilean
AU - Houlston, Richard S.
AU - Tomlinson, Ian
AU - Thomas, Huw J.W.
AU - Maher, Eamonn
AU - Evans, Gareth
AU - Cummings, Carole
AU - Stevens, Margaret
AU - Walker, Lisa
AU - Halliday, Dorothy
AU - Armstrong, Ruth
AU - Paterson, Joan
AU - Hodgson, Shirley
AU - Homfray, Tessa
AU - Side, Lucy
AU - Kanapin, Alexander
PY - 2013/2/1
Y1 - 2013/2/1
N2 - Many individuals with multiple or large colorectal adenomas or early-onset colorectal cancer (CRC) have no detectable germline mutations in the known cancer predisposition genes. Using whole-genome sequencing, supplemented by linkage and association analysis, we identified specific heterozygous POLE or POLD1 germline variants in several multiple-adenoma and/or CRC cases but in no controls. The variants associated with susceptibility, POLE p.Leu424Val and POLD1 p.Ser478Asn, have high penetrance, and POLD1 mutation was also associated with endometrial cancer predisposition. The mutations map to equivalent sites in the proofreading (exonuclease) domain of DNA polymerases ε and δ and are predicted to cause a defect in the correction of mispaired bases inserted during DNA replication. In agreement with this prediction, the tumors from mutation carriers were microsatellite stable but tended to acquire base substitution mutations, as confirmed by yeast functional assays. Further analysis of published data showed that the recently described group of hypermutant, microsatellite-stable CRCs is likely to be caused by somatic POLE mutations affecting the exonuclease domain.
AB - Many individuals with multiple or large colorectal adenomas or early-onset colorectal cancer (CRC) have no detectable germline mutations in the known cancer predisposition genes. Using whole-genome sequencing, supplemented by linkage and association analysis, we identified specific heterozygous POLE or POLD1 germline variants in several multiple-adenoma and/or CRC cases but in no controls. The variants associated with susceptibility, POLE p.Leu424Val and POLD1 p.Ser478Asn, have high penetrance, and POLD1 mutation was also associated with endometrial cancer predisposition. The mutations map to equivalent sites in the proofreading (exonuclease) domain of DNA polymerases ε and δ and are predicted to cause a defect in the correction of mispaired bases inserted during DNA replication. In agreement with this prediction, the tumors from mutation carriers were microsatellite stable but tended to acquire base substitution mutations, as confirmed by yeast functional assays. Further analysis of published data showed that the recently described group of hypermutant, microsatellite-stable CRCs is likely to be caused by somatic POLE mutations affecting the exonuclease domain.
UR - http://www.scopus.com/inward/record.url?scp=84873096362&partnerID=8YFLogxK
U2 - 10.1038/ng.2503
DO - 10.1038/ng.2503
M3 - Article
C2 - 23263490
AN - SCOPUS:84873096362
VL - 45
SP - 136
EP - 143
JO - Nature Genetics
JF - Nature Genetics
SN - 1061-4036
IS - 2
ER -
ID: 34671808