Rare Non-specific / Posted 2 years ago
National Study of Colorectal Cancer Genetics
There are several different factors that can increase risk of developing bowel (colorectal) cancer. One is an inherited faulty gene (genetic mutation).
An inherited genetic mutation may mean that several people in the same family develop bowel cancer. This is called a strong family history’. Inherited conditions such as familial adenomatous polyposis (FAP) or hereditary non-polyposis colorectal cancer (HNPCC) also increase risk.
The increase in risk will depend on which gene is damaged, or even on which part of the gene is damaged. Some genetic mutations are ‘high penetrance’ and increase risk a lot. Others are ‘low penetrance’ and don’t increase risk very much.
The aim of this study is to find out more about high penetrance genes, and how much they increase risk. And to look for new low penetrance genes.