Characterization of the Two Inducible Cre Recombinase-Based Mouse Models NG2-CreER™ and PDGFRb-P2A-CreER

Autor: Daniela, Mayr, Julia, Preishuber-Pflügl, Andreas, Koller, Susanne M, Brunner, Christian, Runge, Anja-Maria, Ladek, Francisco J, Rivera, Herbert A, Reitsamer, Andrea, Trost
Rok vydání: 2021
Předmět:
Zdroj: Current eye research. 47(4)
ISSN: 1460-2202
Popis: Pericytes (PCs), located abluminal of endothelial cells on capillaries, are essential for vascular development and stability. They display a heterogeneous morphology depending on organ localization, differentiation state, and function. Consequently, PCs show a diverse gene expression profile, impeding the usage of a unique PC marker and therefore the distinct identification of PCs. Inducible reporter mouse models represent an important tool for investigating the fate of PCs under physiological and pathophysiological conditions. PC-specific expression efficiency of the fluorescence reporter tdTomato following tamoxifen induction was analyzed and compared in two inducible Cre recombinase-expressing mouse models under control of the NG2 and PDGFRb promotor.The NG2-CreER™-tdTomato and the PDGFRb-P2A-CreERTamoxifen induction at the three different time points resulted in PC-specific expression of tdTomato in both reporter models. In the NG2-CreER™-tdTomato mouse, the induction efficiency ranged from 21.9 to 35.5%. In the PDGFRb-P2A-CreERBoth reporter mouse models represent promising tools for fate-mapping studies of PCs. While the NG2-CreER™-tdTomato mouse reveals very specific labeling of PCs in the retina, its induction efficiency is lower compared to the PDGFRb-P2A-CreER
Databáze: OpenAIRE