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Background: Polymorphic variation at the 5p15.33 (TERT-CLPTM1L) locus is associated with the risk of many cancers but a relationship with colorectal cancer (CRC) risk has yet to be defined.Methods:We used data from six genome-wide association studies (GWAS) of CRC, linkage disequilibrium mapping and imputation, to examine the relationship between 73 single-nucleotide polymorphisms at 5p15.33 and CRC risk in detail.Results:rs2736100, which localises to intron 2 of TERT, provided the strongest evidence of an association with CRC (P 2.28 × 10 -4). The association was also shown in an independent series of 10 047 CRC cases and 6918 controls (P0.02). A meta-analysis of all seven studies (totalling 16 039 cases, 16 430 controls) provided increased evidence of association (P2.49 × 10 5; per allele odds ratio1.07). The association of rs2736100 on CRC risk was shown to be independent of 15 low-penetrance variants previously identified.Conclusion:The rs2736100 association demonstrates an influence of variation at 5p15.33 on CRC risk and further evidence that the 5p15.33 (TERT-CLPTM1L) locus has pleiotropic effects (reflecting generic or lineage-specific effects) on cancer risk. © 2012 Cancer Research UK All rights reserved.

Original publication

DOI

10.1038/bjc.2012.329

Type

Journal article

Journal

British Journal of Cancer

Publication Date

04/09/2012

Volume

107

Pages

1001 - 1008