RXH-Reactive <sup>18</sup>F-Vinyl Sulfones as Versatile Agents for PET Probe Construction
作者:Tao Zhang、Jianhua Cai、Hui Wang、Mengzhe Wang、Hong Yuan、Zhanhong Wu、Xiaofen Ma、Zibo Li
DOI:10.1021/acs.bioconjchem.0c00487
日期:2020.11.18
Efficient radiolabeling reactions are important chemical tools in biomedical research especially in probe construction. Herein, three 18F-labeled vinyl sulfones were prepared. In particular, 18F-PEG1-VS (((2-(2-(fluoro-18F)ethoxy)ethyl)sulfonyl)ethane) could not only allow chemoselective labeling of bioactive molecules containing −XH (X = S, NH) groups, but also react with red blood cells both in vitro and in living mice for potential cell tracking applications. In addition, these hydrophilic agents were found to cross the blood brain barrier (BBB) efficiently and localize at the cerebellum region. In summary, 18F-labeled vinyl sulfones provide a versatile platform for PET probe construction.
高效的放射性标记反应是生物医学研究中的重要化学工具,尤其是在探针构建方面。本文中,制备了三种18F标记的乙烯砜。特别是18F-PEG1-VS(((2-(2-(氟-18F)乙氧)乙基)磺酰)乙烷)不仅能够实现对含有−XH(X = S, NH)基团的生物活性分子的化学选择性标记,而且可以在体外和活体小鼠中与红细胞反应,用于潜在的细胞追踪应用。此外,这些亲水性试剂被发现能够高效地穿过血脑屏障(BBB)并在小脑区域定位。总之,18F标记的乙烯砜为PET探针构建提供了多功能的平台。