Article
Polyclonality overcomes fitness barriers in Apc-driven tumorigenesis.
Nature - 1 Oct 2024
Sadien Iannish D, Adler Sam, Mehmed Shenay, Bailey Sasha, Sawle Ashley, Couturier Dominique-Laurent, Eldridge Matthew, Adams David J, Kemp Richard, Lourenço Filipe C, Winton Douglas J
Abstract excerpt
Loss-of-function mutations in the tumour suppressor APC are an initial step in intestinal tumorigenesis1,2. APC-mutant intestinal stem cells outcompete their wild-type neighbours through the secretion of Wnt antagonists, which accelerates the fixation and subsequent rapid clonal expansion of mutants3-5. Reports of polyclonal intestinal tumours in human patients and mouse models appear at odds with this...
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