Synthesis, [¹⁸F] radiolabeling, and evaluation of poly (ADP-ribose) polymerase-1 (PARP-1) inhibitors for in vivo imaging of PARP-1 using positron emission tomography.

Synthesis, [¹⁸F] radiolabeling, and evaluation of poly (ADP-ribose) polymerase-1 (PARP-1) inhibitors for in vivo imaging of PARP-1 using positron emission tomography.
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DOI:
10.1016/j.bmc.2014.01.019
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发表时间:
2014-03-01
影响因子:
3.5
通讯作者:
Mach RH
Mach RH
中科院分区:
医学3区
文献类型:
--
作者:
Zhou D;Chu W;Xu J;Jones LA;Peng X;Li S;Chen DL;Mach RH

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体内聚(ADP-核糖)聚合酶-1 (PARP-1) 表达的成像是开发用于药物发现和患者护理的 PARP-1 抑制剂的潜在强大工具。我们合成了几种苯并咪唑甲酰胺衍生物作为 PARP-1 抑制剂,可以轻松进行 18F 标记,用于正电子发射断层扫描 (PET) 成像。在合成的化合物中,有 12 种对 PARP-1 具有最高的抑制效力(IC50 = 6.3 nM)。 [18F]12 在常规条件下以高比活度合成,衰减校正产率为 40-50%。在 MDA-MB-436 荷瘤小鼠中使用 [18F]12 进行的 MicroPET 研究表明,[18F]12 在肿瘤中积累,并被奥拉帕尼阻断,表明肿瘤中 [18F]12 的摄取对 PARP-1 表达具有特异性。
Imaging of poly (ADP-ribose) polymerase-1 (PARP-1) expression in vivo is a potentially powerful tool for developing PARP-1 inhibitors for drug discovery and patient care. We have synthesized several derivatives of benzimidazole carboxamide as PARP-1 inhibitors, which can be 18F-labeled easily for positron emission tomographic (PET) imaging. Of the compounds synthesized, 12 had the highest inhibition potency for PARP-1 (IC50 = 6.3 nM). [18F]12 was synthesized under conventional conditions in high specific activity with 40-50 % decay-corrected yield. MicroPET studies using [18F]12 in MDA-MB-436 tumor-bearing mice demonstrated accumulation of [18F]12 in the tumor that was blocked by olaparib, suggesting that the uptake of [18F]12 in the tumor is specific to PARP-1 expression.
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