Discovery of 2-isoxazol-3-yl-acetamide analogues as heat shock protein 90 (HSP90) inhibitors with significant anti-HIV activity
作者:Jay Trivedi、Afsana Parveen、Farhana Rozy、Alapani Mitra、Chandralata Bal、Debashis Mitra、Ashoke Sharon
DOI:10.1016/j.ejmech.2019.111699
日期:2019.12
therapeutic index than AUY922, the second generation HSP90 inhibitor. The anti-HIV activity of 2l is a cell type, virus isolate and viral load independent phenomena. Interestingly, 2l does not significantly modulate viral enzymes like Reverse Transcriptase (RT), Integrase (IN) and Protease (PR) as compared to their known inhibitors in a cell free in vitro assay system at its HNC. Further, 2l mediated inhibition
最近在病毒研究中对热休克蛋白90(HSP90)的探索激增支持其作为克服当前抗病毒治疗方案的缺点的有希望的靶标的出现。在继续努力探索新型抗逆转录病毒分子的过程中,我们设计,合成了15种基于2-isoxazol-3-yl-acetamide的新型化合物(2a-o),然后分析了它们的抗HIV活性和细胞毒性研究。发现2a-b,2e,2j和2l-m在其最高非细胞毒性浓度(HNC)下具有抑制潜力> 80%的活性。这些分子的抗HIV活性的进一步特征表明2l具有比第二代HSP90抑制剂AUY922好约3.5倍的治疗指数。2l的抗HIV活性是细胞类型,病毒分离株和病毒载量独立现象。有趣的是,在HNC的无细胞体外测定系统中,与它们的已知抑制剂相比,2l不会显着调节病毒酶,例如逆转录酶(RT),整合酶(IN)和蛋白酶(PR)。此外,2l介导的对HSP90的抑制作用减弱了HIV-1 LTR驱动的基因表达。综上所述