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HGNC Genes

SARS-CoV-2 proteins

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    Novel and potent inhibitors targeting DHODH HGNC, a rate-limiting enzyme in de novo pyrimidine biosynthesis, are broad-spectrum antiviral against RNA viruses including newly emerged coronavirus SARS-CoV-2

    Authors: Rui Xiong; Leike Zhang; Shiliang Li; Yuan Sun; Minyi Ding; Yong Wang; Yongliang Zhao; Yan Wu; Weijuan Shang; Xiaming Jiang; Jiwei Shan; Zihao Shen; Yi Tong; Liuxin Xu; Yu Chen; Yingle Liu; Gang Zou; Dimitri Lavillete; Zhenjiang Zhao; Rui Wang; Lili Zhu; Gengfu Xiao; Ke Lan; Honglin Li; Ke Xu

    doi:10.1101/2020.03.11.983056 Date: 2020-03-12 Source: bioRxiv

    Emerging and re-emerging RNA viruses occasionally cause epidemics and pandemics worldwide, such as the on-going outbreak of coronavirus SARS-CoV-2 MESHD. Existing direct-acting antiviral (DAA) drugs cannot be applied immediately to new viruses because of virus-specificity, and the development of new DAA drugs from the beginning is not timely for outbreaks. Thus, host-targeting antiviral ( HTA HGNC) drugs have many advantages to fight against a broad spectrum of viruses, by blocking the viral replication and overcoming the potential viral mutagenesis simultaneously. Herein, we identified two potent inhibitors of DHODH HGNC, S312 and S416, with favorable drug-like and pharmacokinetic profiles, which all showed broad-spectrum antiviral effects against various RNA viruses, including influenza A virus (H1N1, H3N2, H9N2), Zika virus, Ebola virus, and particularly against the recent novel coronavirus SARS-CoV-2. Our results are the first to validate that DHODH HGNC is an attractive host target through high antiviral efficacy in vivo and low virus replication in DHODH HGNC knocking-out cells. We also proposed the drug combination of DAA and HTA HGNC was a promising strategy for anti-virus treatment and proved that S312 showed more advantageous than Oseltamivir to treat advanced influenza diseases MESHD in severely infected animals. Notably, S416 is reported to be the most potent inhibitor with an EC50 of 17nM and SI value >5882 in SARS-CoV-2-infected MESHD cells so far. This work demonstrates that both our self-designed candidates and old drugs (Leflunomide/Teriflunomide) with dual actions of antiviral and immuno-repression may have clinical potentials not only to influenza but also to COVID-19 MESHD circulating worldwide, no matter such viruses mutate or not.

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MeSH Disease
HGNC Genes
SARS-CoV-2 Proteins


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