PMID- 30209717 OWN - NLM STAT- MEDLINE DCOM- 20200721 LR - 20231213 IS - 1573-7039 (Electronic) IS - 1083-3021 (Linking) VI - 24 IP - 1 DP - 2019 Mar TI - A Transgenic MMTV-Flippase Mouse Line for Molecular Engineering in Mammary Gland and Breast Cancer Mouse Models. PG - 39-45 LID - 10.1007/s10911-018-9412-4 [doi] AB - Genetically engineered mouse models have become an indispensable tool for breast cancer research. Combination of multiple site-specific recombination systems such as Cre/loxP and Flippase (Flp)/Frt allows for engineering of sophisticated, multi-layered conditional mouse models. Here, we report the generation and characterization of a novel transgenic mouse line expressing a mouse codon-optimized Flp under the control of the mouse mammary tumor virus (MMTV) promoter. These mice show robust Flp-mediated recombination in luminal mammary gland and breast cancer cells but no Flp activity in non-mammary tissues, with the exception of limited activity in salivary glands. These mice provide a unique tool for studying mammary gland biology and carcinogenesis in mice. FAU - Luond, Fabiana AU - Luond F AD - Department of Biomedicine, University of Basel, Mattenstrasse 28, 4058, Basel, Switzerland. FAU - Bill, Ruben AU - Bill R AD - Department of Biomedicine, University of Basel, Mattenstrasse 28, 4058, Basel, Switzerland. FAU - Vettiger, Andrea AU - Vettiger A AD - Department of Biomedicine, University of Basel, Mattenstrasse 28, 4058, Basel, Switzerland. AD - Focal Area Infection Biology, Biozentrum University of Basel, Klingelbergstrasse 50/70, 4056, Basel, Switzerland. FAU - Oller, Heide AU - Oller H AD - Center for Transgenic Models, University of Basel, Mattenstrasse 22, 4058, Basel, Switzerland. FAU - Pelczar, Pawel AU - Pelczar P AD - Center for Transgenic Models, University of Basel, Mattenstrasse 22, 4058, Basel, Switzerland. FAU - Christofori, Gerhard AU - Christofori G AD - Department of Biomedicine, University of Basel, Mattenstrasse 28, 4058, Basel, Switzerland. gerhard.christofori@unibas.ch. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180912 PL - United States TA - J Mammary Gland Biol Neoplasia JT - Journal of mammary gland biology and neoplasia JID - 9601804 RN - 0 (Luminescent Proteins) RN - EC 2.7.7.- (DNA Nucleotidyltransferases) RN - EC 2.7.7.- (FLP recombinase) SB - IM MH - Animals MH - Carcinogenesis/*genetics/pathology MH - DNA Nucleotidyltransferases/*genetics MH - Disease Progression MH - Epithelial Cells/pathology MH - Female MH - Genes, Reporter/genetics MH - Genetic Vectors/administration & dosage/genetics MH - Luminescent Proteins/genetics MH - Mammary Glands, Animal/cytology/*pathology MH - Mammary Neoplasms, Experimental/*genetics/pathology MH - Mammary Tumor Virus, Mouse/*genetics MH - Mice MH - Mice, Transgenic MH - Microinjections MH - Promoter Regions, Genetic/genetics MH - Recombination, Genetic MH - Salivary Glands/pathology MH - Tumor Microenvironment/genetics MH - Red Fluorescent Protein OTO - NOTNLM OT - Breast cancer OT - Flippase OT - Lineage tracing OT - MMTV promoter OT - Mammary gland OT - Transgenic mice EDAT- 2018/09/14 06:00 MHDA- 2020/07/22 06:00 CRDT- 2018/09/14 06:00 PHST- 2018/06/06 00:00 [received] PHST- 2018/09/04 00:00 [accepted] PHST- 2018/09/14 06:00 [pubmed] PHST- 2020/07/22 06:00 [medline] PHST- 2018/09/14 06:00 [entrez] AID - 10.1007/s10911-018-9412-4 [pii] AID - 10.1007/s10911-018-9412-4 [doi] PST - ppublish SO - J Mammary Gland Biol Neoplasia. 2019 Mar;24(1):39-45. doi: 10.1007/s10911-018-9412-4. Epub 2018 Sep 12.