Imaging Autotaxin <i>In Vivo</i> with <sup>18</sup>F-Labeled Positron Emission Tomography Ligands
作者:Xiaoyun Deng、Fernando Salgado-Polo、Tuo Shao、Zhiwei Xiao、Richard Van、Jiahui Chen、Jian Rong、Ahmed Haider、Yihan Shao、Lee Josephson、Anastassis Perrakis、Steven H. Liang
DOI:10.1021/acs.jmedchem.1c00913
日期:2021.10.28
fluorinated imidazo[1,2-a]pyridine derivatives, determined their inhibition constants, and confirmed their binding mode by crystallographic analysis. Based on their promising in vitro properties, compounds 9c, 9f, 9h, and 9j were radiofluorinated. Also, a deuterated analog of [18F]9j, designated as [18F]ATX-1905 ([18F]20), was designed and proved to be highly stable against in vivo radiodefluorination compared
自分泌运动因子 (ATX) 是一种分泌型磷酸二酯酶,与多种病理学有关,尤其是纤维化和癌症。虽然 ATX 抑制剂已进入临床领域,但目前缺乏一种经过验证的正电子发射断层扫描 (PET) 探针。为了开发合适的 ATX 靶向 PET 放射性配体,我们合成了一个聚焦的氟化咪唑并[1,2- a ]吡啶衍生物库,确定了它们的抑制常数,并通过晶体学分析确认了它们的结合模式。基于它们有希望的体外特性,化合物9c、9f、9h和9j被放射性氟化。此外,[ 18F] 9j,命名为[ 18 F]ATX-1905 ([ 18 F] 20 ),与[ 18 F] 9c , [ 18 F] 9f , [ 18 F ]相比,设计并证明对体内放射性脱氟具有高度稳定性] 9h和 [ 18 F] 9j。这些结果以及在LPS 诱导的肝损伤小鼠模型中对 ATX 的体外和体内研究表明,[ 18 F]ATX-1905 是一种适用于 ATX