Development of a Positron Emission Tomography Radiotracer for Imaging Elevated Levels of Superoxide in Neuroinflammation
作者:Catherine Hou、Chia-Ju Hsieh、Shihong Li、Hsiaoju Lee、Thomas J. Graham、Kuiying Xu、Chi-Chang Weng、Robert K. Doot、Wenhua Chu、Subhasish K. Chakraborty、Laura L. Dugan、Mark A. Mintun、Robert H. Mach
DOI:10.1021/acschemneuro.7b00385
日期:2018.3.21
measuring their presence with the functional imaging technique positron emission tomography (PET). This study describes the synthesis and in vivo evaluation of [18F]ROStrace, a radiotracer for imaging superoxide in vivo with PET, in an LPS model of neuroinflammation. [18F]ROStrace was found to rapidly cross the blood-brain barrier (BBB) and was trapped in the brain of LPS-treated animals but not the control
活性氧(ROS)被认为在神经炎症的促炎性,M1极化形式中起主要作用。但是,由于缺乏能够使用功能成像技术正电子发射断层扫描(PET)来测量其存在的探针,因此很难评估ROS在疾病动物模型中的作用及其在神经炎症中的作用。这项研究描述了[18F] ROStrace的合成和体内评估,这是一种在神经炎症的LPS模型中利用PET在体内对超氧化物成像的放射性示踪剂。发现[18F] ROStrace可以快速穿过血脑屏障(BBB),并被困在LPS治疗的动物的大脑中,而不是在对照组中。[18 F] ROStrace的氧化形式[18 F] ROStrace没有穿过血脑屏障。