In Vivo Imaging of the Tumor-Associated Enzyme NCEH1 with a Covalent PET Probe.

In Vivo Imaging of the Tumor-Associated Enzyme NCEH1 with a Covalent PET Probe.
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肿瘤相关酶NCEH1与共价PET探针的体内成像。

DOI:
10.1002/anie.202004762
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发表时间:
2020-08-24
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
通讯作者:
Moellering RE
Moellering RE
中科院分区:
其他
文献类型:
--
作者:
Chang JW;Bhuiyan M;Tsai HM;Zhang HJ;Li G;Fathi S;McCutcheon DC;Leoni L;Freifelder R;Chen CT;Moellering RE

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在这里,我们报告了一个18 F标记的,基于活性的小分子探针靶向癌症相关的丝氨酸水解酶NCEH1的发展。我们开展了一项集中的药物化学活动,以同时保留活细胞和动物中有效和特异性的NCEH1标记,同时允许PET成像所需的18F放射性核素掺入。由此产生的分子[18F]JW199以nM浓度标记活细胞中的活性NCEH1,相对于其他丝氨酸水解酶的选择性大于1,000倍。[18F]JW199在小鼠组织中显示出快速的NCEH1依赖性蓄积。最后,我们证明了[18F] JW 199在体内标记侵袭性癌症肿瘤细胞,这揭示了三阴性乳腺癌肿瘤前沿的局部NCEH1活性,表明NCEH1在肿瘤侵袭性和转移中的作用。共价PET探针:一种18F标记的、基于活性的小分子探针,[18F] JW 199,有效地选择性靶向活细胞中的NCEH1,并在小鼠组织和肿瘤异种移植物中显示出快速的NCEH1依赖性蓄积。
Here we report the development of an 18F-labeled, activity-based small molecule probe targeting the cancer-associated serine hydrolase NCEH1. We undertook a focused medicinal chemistry campaign to simultaneously preserve potent and specific NCEH1 labeling in live cells and animals, while permitting facile 18F radionuclide incorporation required for PET imaging. The resulting molecule, [18F]JW199, labels active NCEH1 in live cells at nM concentrations and greater than 1,000-fold selectivity relative to other serine hydrolases. [18F]JW199 displays rapid, NCEH1-dependent accumulation in mouse tissues. Finally, we demonstrate that [18F]JW199 labels aggressive cancer tumor cells in vivo, which uncovered localized NCEH1 activity at the leading edge of triple-negative breast cancer tumors, suggesting roles for NCEH1 in tumor aggressiveness and metastasis. A Covalent PET probe: An 18F-labeled, activity-based small molecule probe, [18F]JW199, potently and selectively targets NCEH1 in live cells and displays rapid, NCEH1-dependent accumulation in mouse tissues and tumor xenografts.
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