Identification of Noncompetitive Inhibitors of Cytosolic 5′-Nucleotidase II Using a Fragment-Based Approach
作者:Zsuzsanna Marton、Rémi Guillon、Isabelle Krimm、Preeti、Rahila Rahimova、David Egron、Lars P. Jordheim、Nushin Aghajari、Charles Dumontet、Christian Périgaud、Corinne Lionne、Suzanne Peyrottes、Laurent Chaloin
DOI:10.1021/acs.jmedchem.5b01616
日期:2015.12.24
fragment-based drug design (FBDD) and in silico methods to design potential inhibitors of the cytosolic 5′-nucleotidase II (cN-II), which has been recognized as an important therapeutic target in hematological cancers. Two subgroups of small compounds (including adenine and biaryl moieties) were identified as cN-II binders and a fragment growing strategy guided by molecular docking was considered.
我们使用了基于片段药物设计(FBDD)和计算机方法的组合方法来设计潜在的细胞溶质5'-核苷酸酶II(cN-II)抑制剂,该抑制剂被公认为血液学癌症的重要治疗靶标。小化合物的两个亚组(包括腺嘌呤和联芳基部分)被确定为cN-II结合剂,并考虑了通过分子对接引导的片段增长策略。五种化合物在体外强烈抑制5'-核苷酸酶活性,最有力的抑制剂被定性为非竞争性抑制剂。癌细胞系中的生物学评估显示了与所选抗癌药物的协同作用。使用X射线晶体学的结构研究导致了对两种衍生物的新结合位点的鉴定,以及表明重要结构域交换的新晶体形式的鉴定。总之,本文开发的策略允许鉴定新的抗cN-II的原始非竞争性抑制剂,这些抑制剂以与已知的抗肿瘤剂协同作用的方式起作用。