作者:Chen, Panpan、Peng, Ying、Lv, Gaochao、Xu, Liang、Hua, Di、Xie, Minhao、Lin, Jianguo
DOI:10.1021/acs.molpharmaceut.4c00214
日期:——
characterizes its superiority in detecting the recurrence and metastasis of BC. In this article, an array of novel PET probes ([18F]R-1, [18F]R-2, [18F]R-3, and [18F]R-4) targeting ERα based on the tetrahydropyridinyl indole scaffold were developed. Among them, [18F]R-3 and [18F]R-4 showed good target specificity toward ERα and could distinguish MCF-7 (ERα+) and MDA-MB-231 (ERα–) tumors efficiently. Especially
雌激素受体α阳性(ERα + )亚型占所有乳腺癌(BC)的近70%,严重威胁女性健康。正电子发射计算机断层扫描(PET)在检测乳腺癌复发和转移方面具有优越性。在本文中,一系列新型 PET 探针( [ 18 F]R-1 、 [ 18 F]R-2 、 [ 18 F]R-3和[ 18 F]R-4 )基于四氢吡啶基靶向 ERα开发了吲哚支架。其中, [ 18 F]R-3和[ 18 F]R-4对ERα表现出良好的靶向特异性,能够有效区分MCF-7(ERα + )和MDA-MB-231(ERα - )肿瘤。特别是, [ 18 F]R-3可以成功区分 ERα 阳性/阴性肿瘤,其肿瘤与肌肉摄取比 (T/M) 高于[ 18 F]R-4 。注射后25 min,MCF-7肿瘤中[ 18 F]R-3的放射性为5.24±0.84%ID/mL,其T/M比为2.49±0.62,这可能是PET扫描的最佳成像时间点。相反,