A general method for labeling oligodeoxynucleotides with 18F for in vivo PET imaging
作者:Frédéric Dolle、Françoise Hinnen、Françoise Vaufrey、Bertrand Tavitian、Christian Crouzel
DOI:10.1002/(sici)1099-1344(199704)39:4<319::aid-jlcr970>3.0.co;2-7
日期:1997.4
containing a single phosphorothioate monoester, and N-(4-radiohalobenzyl)-2-bromoacetamide. Yields of 40–45% (decay corrected) of pure [18F]N-(4-fluorobenzyl)-2-(ACCGATCCG3′-ps)-acetamide [18F]-(1) (around 30 mCi or 1.1 GBq) were obtained for the whole synthetic procedure (220 minutes) with respect to [18F]fluoride ion, with specific radioactivities as high as 3 Ci/μmole (111 TBq/μmol) calculated for End
本文描述了一种合成携带正电子发射体 18F 的寡脱氧核苷酸 (ODN) 的原始通用方法。开发的标记策略简单、可靠,独立于骨架修饰和碱基序列。它应该对标记天然或修饰的 ODN 具有普遍适用性,前提是后者在其 3' 端带有硫代磷酸酯基团,并且它应该很容易转座到其他放射性卤素,如 76Br 或 123I。我们开发的方法使用最近制备规模的市售 3'-硫代磷酸寡脱氧核苷酸,基于寡脱氧核苷酸的有效偶联反应,含有单个硫代磷酸单酯和 N-(4-放射性卤代苄基)-2-溴乙酰胺。纯 [18F]N-(4-氟苄基)-2-(ACCGATCCG3'-ps)-乙酰胺 [18F]-(1)(约 30 mCi 或 1.1 GBq)的产率为 40-45%(衰减校正)对于 [18F] 氟离子的整个合成过程(220 分钟),针对轰击结束计算的特定放射性高达 3 Ci/μmole (111 TBq/μmol)(或 750 mCi/μmole