Identification of small molecule compounds targeting the interaction of HIV-1 Vif and human APOBEC3G by virtual screening and biological evaluation.

Identification of small molecule compounds targeting the interaction of HIV-1 Vif and human APOBEC3G by virtual screening and biological evaluation.
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通过虚拟筛选和生物学评价鉴定针对 HIV-1 Vif 和人 APOBEC3G 相互作用的小分子化合物

DOI:
10.1038/s41598-018-26318-3
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发表时间:
2018-05-23
期刊:
影响因子:
4.6
通讯作者:
Cen S
Cen S
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Ma L;Zhang Z;Liu Z;Pan Q;Wang J;Li X;Guo F;Liang C;Hu L;Zhou J;Cen S

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人APOBEC 3G(hA 3G)是抑制人免疫缺陷病毒1型(HIV-1)复制的限制性因子。病毒编码的蛋白Vif与hA 3G结合并诱导其降解,从而抵消hA 3G的抗病毒活性。Vif介导的hA 3G降解清楚地代表了抗HIV药物开发的潜在靶点。在此,我们进行了虚拟筛选,以发现靶向Vif/hA 3G复合物结合界面的小分子抑制剂。随后的生物化学研究已经鉴定出小分子抑制剂IMB-301,其结合hA 3G,中断hA 3G-Vif相互作用并抑制Vif介导的hA 3G降解。因此,IMB-301以hA 3 G依赖性方式强烈抑制HIV-1复制。我们的研究进一步证明了通过消除Vif-hA 3G与小分子的相互作用来抑制HIV复制的可行性。
Human APOBEC3G (hA3G) is a restriction factor that inhibits human immunodeficiency 1 virus (HIV-1) replication. The virally encoded protein Vif binds to hA3G and induces its degradation, thereby counteracting the antiviral activity of hA3G. Vif-mediated hA3G degradation clearly represents a potential target for anti-HIV drug development. Herein, we have performed virtual screening to discover small molecule inhibitors that target the binding interface of the Vif/hA3G complex. Subsequent biochemical studies have led to the identification of a small molecule inhibitor, IMB-301 that binds to hA3G, interrupts the hA3G-Vif interaction and inhibits Vif-mediated degradation of hA3G. As a result, IMB-301 strongly inhibits HIV-1 replication in a hA3G-dependent manner. Our study further demonstrates the feasibility of inhibiting HIV replication by abrogating the Vif-hA3G interaction with small molecules.
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