Generating somatic mosaicism with a Cre recombinase-microsatellite sequence transgene.

Akyol, Aytekin; Hinoi, Takao; Feng, Ying; Bommer, Guido T; Glaser, Thomas M; Fearon, Eric R · Nat Methods · 2008

basic_science · Level V

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Abstract

Strategies for altering constitutional or somatic genotype in mice are well established, but approaches to generate mosaic genotypes in mouse tissues are limited. We showed that a functionally inactive Cre recombinase transgene with a long mononucleotide tract altering the reading frame was stochastically activated in the mouse intestinal tract. We demonstrated the utility of this approach by inducing colonic polyposis after Cre-mediated bi-allelic inactivation of the Apc gene.

Medical subject headings