Comparative Characterization of Experimental and Calculated Lipophilicity and Anti-Tumour Activity of Isochromanone Derivatives
作者:M. Huszar、A. Varga、A. Horvath、T. Lorand、A. Agocs、M. Idei、J. Mandl、T. Vantus、G. Keri
DOI:10.2174/092986710790192703
日期:2010.2.1
Compound lipophilicity connected to ADME(T)a has great importance in drug development and it has to be evaluated by the generally used drug developmental process. In addition to the importance of lipophilicity in ADMET, recently it has been reported that lipophilicity of small molecules correlates with their antiproliferative activity because of certain specific hydrophobic and lipophilic interactions. Due to the complexity of ADME(T) parameters an efficient and fast method is needed to characterize the many promising candidate lead molecules as a preselection in order not to be rejected from the latter phase of drug development. In the present paper we provide an overview of the importance of lipophilicity of drug candidates for biological action and for ADME(T) and describe a novel approach for drug-likeness characterization of a molecular library using correlation study between lipophilicity and biological activity. Lipophilicity and molecular characteristics have been measured, predicted and optimized for a diverse library from which the best members have been selected to describe their biological, chemical and drug-likeness properties. Molecules were selected from the family of α,β-unsaturated ketones and thorough HPLC characterization for lipophilicity and morphological, antiproliferative and flow cytometric studies were carried out on them. Based on the results 17 member isochromanone library including E and Z geometric isomers were selected for further characterization. In this focused library linear correlation has been found between the calculated and measured lipophilicity and significant parabolic correlation was found between the antiproliferative effect and lipophilicity. Using our efficient and fast method, from a diverse library, we identified an outstandingly effective inhibitor of A431 tumour cell growth via a PARPa cleavage dependent apoptosis. In summary the optimized HPLC analyses of lipophilicity combined with the cell-culture assay, introduced above, resulted in the determination of an optimal lipophilicity range. This optimized lipophilicity range should be used in designing novel antiproliferative compounds.
与 ADME(T)a 相关的化合物亲脂性在药物开发中非常重要,必须通过常用的药物开发过程进行评估。除了亲脂性在 ADMET 中的重要性之外,最近有报道称,由于某些特定的疏水性和亲脂性相互作用,小分子的亲脂性与其抗增殖活性相关。由于 ADME(T) 参数的复杂性,需要一种有效且快速的方法来表征许多有前途的候选先导分子作为预选,以免被药物开发的后期阶段拒绝。在本文中,我们概述了候选药物的亲脂性对于生物作用和 ADME(T) 的重要性,并描述了一种利用亲脂性和生物活性之间的相关性研究来表征分子库的药物相似性的新方法。亲脂性和分子特征已针对多样化的文库进行了测量、预测和优化,从中选择了最好的成员来描述其生物、化学和药物相似性特性。分子选自 α,β-不饱和酮家族,并对它们进行了彻底的 HPLC 亲脂性表征、形态学、抗增殖和流式细胞术研究。根据结果,选择了包括 E 和 Z 几何异构体的 17 个成员异色满酮库进行进一步表征。在这个重点库中,在计算的和测量的亲脂性之间发现了线性相关性,并且在抗增殖作用和亲脂性之间发现了显着的抛物线相关性。使用我们高效、快速的方法,从多样化的文库中,我们通过 PARPa 裂解依赖性细胞凋亡鉴定出一种非常有效的 A431 肿瘤细胞生长抑制剂。总之,如上所述,优化的亲脂性 HPLC 分析与细胞培养测定相结合,确定了最佳亲脂性范围。这种优化的亲脂性范围应用于设计新型抗增殖化合物。