NON-EXPERIMENTAL SEARCH FOR MOLECULES WITH ANTITUMOR ACTIVITY AND MOLECULAR DOCKING IN THE SERIES OF PYRIDINECARBOXY ACID DERIVATIVES

D. O.N., Kudryavtsev M.Yu., Tumutolova O.N., B. E.V., Epishkina A.A., Skachilova S.Ya., B. D.S.
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Abstract

Abstract. In the work, a pre-experimental screening of pyridinecarboxylic acid derivatives was performed by the PASS program, The work identified potential molecular targets for the implementation of the antitumor effect of a new domestic compound, an analogue of pyridine LHT-13-19. Using the "Autodock 4.2" software environment, flexible receptor-directed molecular biological docking was carried out in virtual reality, which makes it possible to most accurately predict the formation of a complex between a molecular structure and a biological target in real conditions of a specific biological system. For molecular docking, three-dimensional structures of the epidermal growth factor receptor (EGFR, PDB ID: 1M17, 4KN2) from the open electronic library Protein Data Bank (USA) were used. Molecules of compounds - pyridine derivatives LHT-13-19, LHT-16-19 and LHT-17-19 were synthesized in the Department of Chemistry, All-Union Research Center for Biological Active Compounds Safety (Russia). As a result of the experiments, it was found that all the studied molecules have inhibitory activity against proto-oncogenic kinases, however, in terms of the totality of predictive characteristics, as well as the likelihood of forming an antitumor effect, LHT-17-19, which was studied in docking studies, turned out to be the most promising compound. It was shown that LHT-17-19 has a high affinity for the epidermal growth factor kinase receptor EGFR-K, exhibits an affinity for the CSF1 receptor system, superior to that of all comparators - imatinib, erlotinib and pemetrexed. Also, in the process of docking approach and subsequent docking with the active site of tyrosine kinase EGFR-K and the human folate receptor FOLR2, an additional hydrogen bond is formed inside the LHT-17-19 molecule between the hydrogen proton of the amino group and the oxygen atom of the carbonyl group with atomic distances of 2.21 Å and 2 .49 Å, respectively.
非实验寻找具有抗肿瘤活性的分子,并在吡啶羧酸衍生物系列中进行分子对接
摘要本研究通过PASS程序对吡啶羧酸衍生物进行了实验前筛选,确定了一种新的国内类似于吡啶的化合物LHT-13-19的潜在分子靶点。利用“Autodock 4.2”软件环境,在虚拟现实中进行柔性受体导向的分子生物学对接,使得在特定生物系统的真实条件下最准确地预测分子结构与生物靶点之间复合物的形成成为可能。为了进行分子对接,我们使用了来自美国开放电子库Protein Data Bank的表皮生长因子受体(EGFR, PDB ID: 1M17, 4KN2)的三维结构。化合物-吡啶衍生物LHT-13-19、LHT-16-19和LHT-17-19的分子在俄罗斯全联合生物活性化合物安全研究中心化学系合成。实验结果发现,所研究的分子均对原癌激酶具有抑制活性,但从预测特征的总体以及形成抗肿瘤作用的可能性来看,对接研究中所研究的LHT-17-19是最有希望的化合物。结果表明,llt -17-19对表皮生长因子激酶受体EGFR-K具有高亲和力,对CSF1受体系统具有亲和力,优于所有比较物伊马替尼、厄洛替尼和培美曲塞。此外,在与酪氨酸激酶EGFR-K活性位点和人叶酸受体FOLR2的对接接近和后续对接过程中,LHT-17-19分子内部氨基氢质子与羰基氧原子之间形成了一个额外的氢键,原子距离分别为2.21 Å和2.49 Å。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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