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QSAR-based rational discovery of novel substituted-4′-iminospiroindoline-33′-125thiadiazolidinyl-2-one 1′1′-dioxide with potent in vitro anticancer activity

机译:基于QSAR的新型取代的4-亚氨基螺吲哚啉-33-125噻二唑啉基 -2-酮11-二氧化物具有有效的体外抗癌活性

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摘要

Recent studies have suggested that aldose reductase inhibition preferentially inhibits the growth of cancer cells. However, the investigations of this issue are not many. Novel nine substituted- 4′-iminospiro[indoline-3,3′-[1,2,5] thiadiazolidinyl]-2-one 1′,1′-dioxide derivatives were designed by both isosteric replacement of the imidazolidine-2,5-dione moiety in spirohydantoin scaffold and conformational rigidification approaches. A QSAR with high predictive power (r2 = 0.99) was created from a series of potent aldose reductase inhibitors and was used to predict the activity of our new compounds. Compound 5 showed the best docking score (− 33.24 kcal/mol) with the least RMSD value (< 1.5) obtained by molecular dynamic simulations over 20 ns. All compounds showed promising anticancer activities especially compound 5 that achieved the highest inhibitory activities with IC50; 0.013, 0.031, 0.064, and 0.048 mmol/L against breast, colon, prostate, and lung cell lines respectively. The discovery of this lead compound confirmed the rational design. Further investigations may be required for optimization of this compound.
机译:最近的研究表明,醛糖还原酶抑制优先抑制癌细胞的生长。但是,对此问题的调查并不多。通过咪唑烷-2,5的两种等位取代,设计了九种取代的4'-亚氨基螺并[吲哚啉-3,3'-[1,2,5]噻二唑烷基] -2-one 1',1'-二氧化物衍生物螺乙内酰脲支架中的β-二酮部分和构象刚性化方法。用一系列有效的醛糖还原酶抑制剂创建了具有高预测能力(r 2 = 0.99)的QSAR,并用于预测我们新化合物的活性。化合物5在20 ns内通过分子动力学模拟显示出最佳的对接得分(−33.24 kcal / mol)和最小的RMSD值(<1.5)。所有化合物均显示出有希望的抗癌活性,尤其是化合物5对IC50的抑制作用最高; 0.013、0.031、0.064和0.048 mmol / L分别针对乳腺,结肠,前列腺和肺细胞系。该铅化合物的发现证实了合理的设计。可能需要进一步研究以优化该化合物。

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