Background:
Pestivirus genus includes animal pathogens which are involved in economic impact for the livestock industry. Among others, Bovine Viral Diarrhoea Virus (BVDV) establish a persistent infection in cattle causing a long list of symptoms and a high mortality rate. In the last decades, we synthesised and reported a certain number of anti-BVDV compounds.
Methods:
In them, imidazoquinoline derivatives turned out as the most active. Their mechanism of actions has been deeply investigated, BVDV RNA-dependent RNA polymerase (RpRd) resulted as target and the way of binding was predicted in silico through three main H-bond interaction with the target.
The prediction could be confirmed by target or ligand mutation. The first approach has already been performed and published confirming the in silico prediction.
Results:
Here, we present how the ligand chemical modification affects the anti-BVDV activity. The designed compounds were synthesised and tested against BVDV as in silico assay negative control.
Conclusion:
The antiviral results confirmed the predicted mechanism of action, as the newly synthesised compounds resulted not active in the in vitro BVDV infection inhibition.
背景:
病毒属包括动物病原体,对畜牧业造成经济影响。其中,牛病毒性腹泻病毒(BVDV)在牛群中引起持续感染,导致一系列症状和高死亡率。在过去的几十年中,我们合成并报告了一定数量的抗BVDV化合物。
方法:
其中,咪唑喹啉衍生物被证明是最活跃的。它们的作用机制已经深入研究,BVDV RNA依赖性RNA聚合酶(RpRd)成为靶点,并且通过与靶点的三种主要氢键相互作用的方式进行了in silico预测。预测可以通过靶点或配体突变来确认。第一种方法已经被执行和发布,以确认in silico预测。
结果:
在这里,我们展示了配体化学修饰如何影响抗BVDV活性。设计的化合物被合成并针对BVDV进行测试,作为in silico测定的阴性对照。
结论:
抗病毒结果证实了预测的作用机制,因为新合成的化合物在in vitro BVDV感染抑制中表现出不活性。