This work describes the generation of a potential porcine model predisposed to colorectal cancer. Germline mutations in the adenomatous polyposis coli (apc) gene cause the inherited human CRC syndrome familial adenomatous polyposis coli (FAP), which manifests itself by colorectal adeno-carcinoma with early onset. Targeting constructs for the two most common germline mutations in the human apc gene of FAP patients at codon 1061 and 1309 were generated. The targeting vectors were based on a promotor-trap approach and designed with porcine apc sequences. Gene-targeted, heterozygous piglets with mutations at codon 1061 of the porcine apc gene were generated.
These pigs represent the first porcine cancer model and the second porcine disease model. Additionally, the mutation in the apc gene is the third gene-targeted gene in the pig. Future work will reveal whether these pigs are predisposed to colorectal cancer and may therefore offer many advantages for research and clinic. The methods described herein should also enable the development of further livestock models of human diseases.
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This work describes the generation of a potential porcine model predisposed to colorectal cancer. Germline mutations in the adenomatous polyposis coli (apc) gene cause the inherited human CRC syndrome familial adenomatous polyposis coli (FAP), which manifests itself by colorectal adeno-carcinoma with early onset. Targeting constructs for the two most common germline mutations in the human apc gene of FAP patients at codon 1061 and 1309 were generated. The targeting vectors were based on a promo...
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