A knock-in mouse line conditionally expressing the tumor suppressor WTX/AMER1

 

Agnes Boutet, Glenda Comai, Aurelie Charlet, Fariba Jian Motamedi, Haroun Dhib, Roberto Bandiera and Andreas Schedl, Genesis. 2017 Nov,55(11). 16 OCT 2017 | DOI: 10.1002/dvg.23074

 

A knock-in mouse line conditionally expressing the tumor suppressor WTX/AMER1

WTX/AMER1 is an important developmental regulator, mutations in which have been identified in a proportion of patients suffering from the renal neoplasm Wilms` tumor and in the bone malformation syndrome Osteopathia Striata with Cranial Sclerosis (OSCS). Its cellular functions appear complex and the protein can be found at the membrane, within the cytoplasm and the nucleus. To understand its developmental and cellular function an allelic series for Wtx in the mouse is crucial. Whereas mice carrying a conditional knock out allele for Wtx have been previously reported, a gain-of-function mouse model that would allow studying the molecular, cellular and developmental role of Wtx is still missing. Here we describe the generation of a novel mouse strain that permits the conditional activation of WTX expression. Wtx fused to GFP was introduced downstream a stop cassette flanked by loxP sites into the Rosa26 locus by gene targeting. Ectopic WTX expression is reported after crosses with several Cre transgenic mice in different embryonic tissues. Further, functionality of the fusion protein was demonstrated in the context of a Wtx null allele.

   Andreas Schedl - 22/11/2017 Plus d'informations sur : http://onlinelibrary.wiley.com/doi/10.1002/dvg.23074/full
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