Visualizing Microglia with a Fluorescence Turn‐On Ugt1a7c Substrate
作者:Beomsue Kim、Masahiro Fukuda、Jung‐Yeol Lee、Dongdong Su、Srikanta Sanu、Aymeric Silvin、Audrey T. T. Khoo、Taejoon Kwon、Xiao Liu、Weijie Chi、Xiaogang Liu、Sejong Choi、Diana S. Y. Wan、Sung‐Jin Park、Jin‐Soo Kim、Florent Ginhoux、H. Shawn Je、Young‐Tae Chang
DOI:10.1002/anie.201903058
日期:2019.6.11
developed CDr20, a high‐performance fluorogenic chemical probe that enables the visualization of microglia both in vitro and in vivo. Using a genome‐scale CRISPR‐Cas9 knockout screen, the UDP‐glucuronosyltransferase Ugt1a7c was identified as the target of CDr20. The glucuronidation of CDr20 by Ugt1a7c in microglia produces fluorescence.
alternation with maximum of 120 nm red-shift upon addition of DBU (1,8-diazabicyclo[5.4.0]undec-7-ene) as a base, giving remarkable color change which can be detected by naked eye. Meanwhile, the compound CB3 shows high selectivity toward fluoride ion via fluorescence quenching mechanism by release of the masked phenolate form of CB2 through fluoride ion induced deprotection reaction. It also exhibits fast
Herein, we exemplify BODIPY-βgal as a ratiometric light-up NIR probe for the quantitative sensing of endogenous β-gal distribution in living cells, and real-time tracking of β-gal activity in tumor-bearing nude mice.