Computational Predictions of Binding Affinities to Dihydrofolate Reductase: Synthesis and Biological Evaluation of Methotrexate Analogues
作者:Malin Graffner-Nordberg、John Marelius、Sofie Ohlsson、Åsa Persson、Göte Swedberg、Paul Andersson、Sven E. Andersson、Johan Åqvist、Anders Hallberg
DOI:10.1021/jm0009639
日期:2000.10.1
The relative binding affinities to human dihydrofolate reductase of four new potential antifolates, containing ester linkages between the two aromatic systems, were estimated by free energy perturbation simulations. The ester analogue, predicted to exhibit the highest binding affinity to human dihydrofolate reductase, and a reference ester (more structurally related to methotrexate) were synthesized
通过自由能扰动模拟估计了四种潜在的抗叶酸剂与人二氢叶酸还原酶的相对结合亲和力,它们包含两个芳族系统之间的酯键。合成了预计与人二氢叶酸还原酶具有最高结合亲和力的酯类似物和参考酯(与甲氨蝶呤在结构上更相关)。从测得的IC(50)值推论得出,配体的计算排名是正确的,尽管实验测量表明亲和力的差异更大。在新的抗叶酸药中,最有效的抑制剂表现出与甲氨蝶呤相似的药代动力学特征,但在大鼠体内复杂的抗关节炎模型中缺乏活性。