Molecular identification of causative genetic and epigenetic alterations that induce and promote colorectal cancer

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The majority of mouse models currently employed to study colorectal cancer have two failings. The first is that they tend to focus on small intestinal cancers rather than colorectal cancers. It is important to note that small intestinal cancers are in the minority of gastrointestinal cancers in humans. The second problem is that the genetic lesions introduced into mice are mostly in all cells throughout development. This is a poor representation of the random nature of genetic changes that underpin the probable cause of colon cancer. We therefore propose to genetically engineer unique mouse models that focus on colon cancer to most closely replicate the situation in human disease. These models will then be available to others and us to develop and test therapies to prevent and-or treat colorectal cancer that will ultimately be used in patients.