Manipulating the murine Lgr5 locus using a rapid, efficient and flexible CRISPR/Cas9 pipeline
Reichmuth, J.; vom Berg, J.; Brugger, M.; Hausmann, G.; Valenta, T.; Basler, K.
Show abstract
The maintenance of adult epithelial tissues, such as the lining of the intestine, depends on their periodical renewal. This is achieved through small populations of adult stem cells. Lgr5 serves as a marker for these cells. Here we report a novel non-variegated Lgr5 mouse model, which was generated via the CRISPR/Cas9 system. We show that this Lgr5-2A-CreERT2-2A-mOrange2 mouse line can be used for lineage tracing, as well as for directing gene expression to Lgr5+ cells. The introduction of the transgene affects neither the expression, nor the function of endogenous Lgr5. Therefore, this new tool will serve to mark and manipulate intestinal stem cells to gain new biological insights.
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