Computational and synthetic approaches for developing Lavendustin B derivatives as allosteric inhibitors of HIV-1 integrase
作者:Fatima E. Agharbaoui、Ashley C. Hoyte、Stefania Ferro、Rosaria Gitto、Maria Rosa Buemi、James R. Fuchs、Mamuka Kvaratskhelia、Laura De Luca
DOI:10.1016/j.ejmech.2016.07.077
日期:2016.11
Lavendustin B was previously identified as an inhibitor of HIV-1 integrase (IN) interaction with its cognate cellular cofactor, lens epithelium-derived growth factor (LEDGF/p75). In order to improve the inhibitory potency we have employed in silico-based approaches. Particularly, a series of new analogues was designed and docked into the LEDGF/p75 binding pocket of HIV-1 IN. To identify promising leads we used
通过基于结构的虚拟筛选和所选天然产物的后续活性测定,Lavendustin B先前被鉴定为HIV-1整合酶(IN)与其同源细胞辅因子,晶状体上皮来源的生长因子(LEDGF / p75)相互作用的抑制剂。为了提高抑制效力,我们在计算机上采用了基于方法。特别是,设计了一系列新的类似物并将其对接到HIV-1 IN的LEDGF / p75结合口袋中。为了确定有前途的线索,我们将分子力学能量与广义玻恩和表面积连续体溶剂化法(MM-GBSA)相结合,进行了分子动力学模拟和氢键占有率分析。在这些研究的基础上,选择了六种含有苄氨基-羟基苯甲酸支架的拉文杜斯坦B类似物进行合成和结构活性关系(SAR)研究。我们的结果证明了计算数据与实验数据之间的良好相关性,并且所有六个类似物在体外均具有提高的抑制IN与LEDGF / p75结合的能力。此外,这些类似物显示出抑制弱于LEDGF / p75的IN催化活性,提示了