Aminothiazoles as Potent and Selective Sirt2 Inhibitors: A Structure–Activity Relationship Study
作者:Matthias Schiedel、Tobias Rumpf、Berin Karaman、Attila Lehotzky、Judit Oláh、Stefan Gerhardt、Judit Ovádi、Wolfgang Sippl、Oliver Einsle、Manfred Jung
DOI:10.1021/acs.jmedchem.5b01517
日期:2016.2.25
Here, we present a well-defined structure–activity relationship study, which rationalizes the unique features of the SirReals and probes the limits of modifications on this scaffold regarding inhibitor potency. Moreover, we present a crystal structure of hSirt2 in complex with an optimized SirReal derivative that exhibits an improved in vitro activity. Lastly, we show cellular hyperacetylation of the
Sirtuins是NAD +-依赖性蛋白脱酰基酶,其从组蛋白和其他底物蛋白中的赖氨酸的ε-氨基上裂解掉乙酰基以及其他酰基。人类Sirt2(hSirt2)活性的失调与癌症,炎症和神经退行性病变的发病机制有关,这使得对hSirt2活性的调节成为药物干预的有前途的策略。sirtuin重排配体(SirReals)最近已被我们发现为高效且同型选择性的hSirt2抑制剂。在这里,我们提出了一个定义明确的结构-活性关系研究,该研究合理化了SirReals的独特功能,并探讨了该支架在抑制剂效能方面的修饰极限。而且,我们提出了具有优化的SirReal衍生物的hSirt2晶体结构,该衍生物具有改善的体外活性。最后,我们显示了由我们改良的前导结构导致的hSirt2靶向微管蛋白的细胞过度乙酰化。