Tamoxifen-Independent Recombination in the RIP-CreER Mouse

Autor: Solimena, Michele, Steffen, Anja, Magro, Maria Grazia, Masjkur, Jimmy, Suckale, Jackob, Liu, Yanmei, Anastassiadis, Konstantinos
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: PLoS One, Vol. 5 (2010) Bd. 10, e13533, ISSN 1932-6203
Druh dokumentu: Článek
ISSN: 1932-6203
Popis: Background The inducible Cre-lox system is a valuable tool to study gene function in a spatial and time restricted fashion in mouse models. This strategy relies on the limited background activity of the modified Cre recombinase (CreER) in the absence of its inducer, the competitive estrogen receptor ligand, tamoxifen. The RIP-CreER mouse (Tg (Ins2-cre/Esr1) 1Dam) is among the few available β-cell specific CreER mouse lines and thus it has been often used to manipulate gene expression in the insulin-producing cells of the endocrine pancreas. Principal Findings Here, we report the detection of tamoxifen-independent Cre activity as early as 2 months of age in RIP-CreER mice crossed with three distinct reporter strains. Significance Evidence of Cre-mediated recombination of floxed alleles even in the absence of tamoxifen administration should warrant cautious use of this mouse for the study of pancreatic β-cells.
Databáze: Networked Digital Library of Theses & Dissertations