The Structural Combination of SIL and MODAG Scaffolds Fails to Enhance Binding to α-Synuclein but Reveals Promising Affinity to Amyloid β
作者:Adriana Di Nanni、Ran Sing Saw、Gregory D. Bowden、Natasha S. R. Bidesi、Kaare Bjerregaard-Andersen、Špela Korat、Matthias M. Herth、Bernd J. Pichler、Kristina Herfert、Andreas Maurer
DOI:10.3390/molecules28104001
日期:——
unmet scientific and clinical need that would represent a transformative tool in the understanding, diagnosis, and treatment of various neurodegenerative diseases. Several classes of compounds have shown promising results as potential PET tracers, but no candidate has yet exhibited the affinity and selectivity required to reach clinical application. We hypothesized that the application of the rational drug
体内成像 α-突触核蛋白 (αSYN) 原纤维的技术是未满足的科学和临床需求,它将代表理解、诊断和治疗各种神经退行性疾病的变革性工具。几类化合物作为潜在的 PET 示踪剂已显示出有希望的结果,但还没有候选化合物表现出达到临床应用所需的亲和力和选择性。我们假设将分子杂交的合理药物设计技术应用于两个有前途的先导支架可以增强与 αSYN 的结合,直至满足这些要求。通过结合 SIL 和 MODAG 示踪剂的结构,我们开发了一个二芳基吡唑 (DAP) 库。通过针对 [3H]SIL26 和 [3H]MODAG-001 的竞争测定进行的体外评估表明,新型混合支架对淀粉样蛋白 β (Aβ) 的结合亲和力优于对 αSYN 原纤维的结合亲和力。吩噻嗪结构单元的开环修饰以产生具有更高三维灵活性的类似物并没有导致 αSYN 结合的改善,而是竞争的完全丧失,以及 Aβ 亲和力的显着降低。吩噻嗪和 3,5-二苯基吡唑支架结合成