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Approximately, a third of all colorectal cancer (CRC) is due to inherited susceptibility. However, high-risk mutations in APC, the mismatch repair (MMR) genes, MUTYH/MYH, SMAD4, ALK3 and STK11/LKB1 are rare and account for <5% of cases. Much of the remaining variation in genetic risk is likely to be explained by combinations of more common gene variants that modestly increase risk. Reliable identification of such 'low penetrance' alleles would provide insight into the aetiology of CRC and might highlight potential therapeutic and preventative interventions. In 2003, the National Study of Colorectal Cancer Genetics (NSCCG) was established with the aim of collecting DNA and clinicopathological data from 20,000 CRC cases and a series of spouse/partner controls, thereby creating a unique resource for identifying low-penetrance CRC susceptibility alleles. The National Cancer Research Network (NCRN) adopted NSCCG onto its portfolio of trials and 148 centres in the United Kingdom (UK) are now actively participating. Over 8,700 cases and 2,185 controls have so far been entered into NSCCG. Our experience in developing NSCCG serves to illustrate how world-class DNA databases for genetic analyses can be rapidly developed in the United Kingdom.

Original publication

DOI

10.1038/sj.bjc.6603997

Type

Journal article

Journal

Br J Cancer

Publication Date

05/11/2007

Volume

97

Pages

1305 - 1309

Keywords

Adenocarcinoma, Adult, Aged, Colorectal Neoplasms, Colorectal Neoplasms, Hereditary Nonpolyposis, Female, Humans, Male, Middle Aged, Multicenter Studies as Topic, Penetrance, Polymorphism, Single Nucleotide, Spouses, United Kingdom