Jiang Huailei, Guo Yan, Muzik Otto
Cyclotron and Radiochemistry Core, Karmanos Cancer Institute Detroit, MI, USA.
PET Center, Karmanos Cancer Institute Detroit, MI, USA.
Am J Nucl Med Mol Imaging. 2023 Aug 15;13(4):171-178. eCollection 2023.
The cannabinoid subtype 1 receptor (CB1R) is highly expressed in the central nervous system and abnormalities in regional CB1R density are associated with neurodegenerative disorders. The PET tracer [F]FMPEP- is an inverse CB1R agonist which was shown to be suitable for non-invasive PET imaging. In this work, we reported the fully automated radiosynthesis of [F]FMPEP- on a Synthra RNplus research module. In a total synthesis time of 70 min, [F]FMPEP- was obtained in 2.2 ± 0.1 GBq (n = 3) with excellent radiochemical and chemical purity. Quality control test showed that [F]FMPEP- product meets all the release criteria for clinical patient use.
大麻素1型受体(CB1R)在中枢神经系统中高度表达,区域CB1R密度异常与神经退行性疾病有关。正电子发射断层扫描(PET)示踪剂[F]FMPEP-是一种CB1R反向激动剂,已证明适用于非侵入性PET成像。在本研究中,我们报道了在Synthra RNplus研究模块上实现[F]FMPEP-的全自动放射性合成。在总合成时间70分钟内,获得了[F]FMPEP-,活度为2.2±0.1 GBq(n = 3),放射化学纯度和化学纯度均优异。质量控制测试表明,[F]FMPEP-产品符合临床患者使用的所有放行标准。