» Articles » PMID: 12582257

Rapid Generation of Inducible Mouse Mutants

Abstract

We have generated an optimized inducible recombination system for conditional gene targeting based on a Cre recombinase-steroid receptor fusion. This configuration allows efficient Cre-mediated recombination in most organs of the mouse upon induction, without detectable background activity. An ES cell line, was established that carries the inducible recombinase and a loxP-flanked lacZ reporter gene. Out of this line, completely ES cell-derived mice were efficiently produced through tetraploid blastocyst complementation, without the requirement of mouse breeding. Our findings provide a new concept allowing the generation of inducible mouse mutants within 6 months, as compared to 14 months using the current protocol.

Citing Articles

analysis of CRISPR-edited germinal center murine B cells.

Chege Kuria T, Schneider A, Baraka F, Wanzek J, Vogg L, Brey S Front Immunol. 2024; 15:1473760.

PMID: 39483469 PMC: 11524869. DOI: 10.3389/fimmu.2024.1473760.


IL-2 delivery to CD8 T cells during infection requires MRTF/SRF-dependent gene expression and cytoskeletal dynamics.

Maurice D, Costello P, Diring J, Gualdrini F, Frederico B, Treisman R Nat Commun. 2024; 15(1):7956.

PMID: 39261466 PMC: 11391060. DOI: 10.1038/s41467-024-52230-8.


Dach1 is essential for maintaining normal mature podocytes.

Tanaka K, Hayasaka H, Matsusaka T PLoS One. 2024; 19(5):e0303910.

PMID: 38805434 PMC: 11132487. DOI: 10.1371/journal.pone.0303910.


Unlocking Genetic Mysteries during the Epic Sperm Journey toward Fertilization: Further Expanding Mouse Lines.

Dai P, Ma C, Chen C, Liang M, Dong S, Chen H Biomolecules. 2024; 14(5).

PMID: 38785936 PMC: 11117649. DOI: 10.3390/biom14050529.


N4BP1 coordinates ubiquitin-dependent crosstalk within the IκB kinase family to limit Toll-like receptor signaling and inflammation.

Gitlin A, Maltzman A, Kanno Y, Heger K, Reja R, Schubert A Immunity. 2024; 57(5):973-986.e7.

PMID: 38697117 PMC: 11096006. DOI: 10.1016/j.immuni.2024.04.004.


References
1.
Schwenk F, Baron U, Rajewsky K . A cre-transgenic mouse strain for the ubiquitous deletion of loxP-flanked gene segments including deletion in germ cells. Nucleic Acids Res. 1995; 23(24):5080-1. PMC: 307516. DOI: 10.1093/nar/23.24.5080. View

2.
Kuhn R, Schwenk F, Aguet M, Rajewsky K . Inducible gene targeting in mice. Science. 1995; 269(5229):1427-9. DOI: 10.1126/science.7660125. View

3.
Buchholz F, Angrand P, Stewart A . A simple assay to determine the functionality of Cre or FLP recombination targets in genomic manipulation constructs. Nucleic Acids Res. 1996; 24(15):3118-9. PMC: 146033. DOI: 10.1093/nar/24.15.3118. View

4.
Feil R, Brocard J, Mascrez B, Lemeur M, Metzger D, Chambon P . Ligand-activated site-specific recombination in mice. Proc Natl Acad Sci U S A. 1996; 93(20):10887-90. PMC: 38252. DOI: 10.1073/pnas.93.20.10887. View

5.
Betz U, Vosshenrich C, Rajewsky K, Muller W . Bypass of lethality with mosaic mice generated by Cre-loxP-mediated recombination. Curr Biol. 1996; 6(10):1307-16. DOI: 10.1016/s0960-9822(02)70717-3. View