Discovery of Potent Antivirals against Amantadine-Resistant Influenza A Viruses by Targeting the M2-S31N Proton Channel

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• 作者：Fang Li ; Chunlong Ma ; Yanmei Hu ; Yuanxiang Wang ; Jun Wang
• 刊名：ACS Infectious Diseases
• 出版年：2016
• 出版时间：October 14, 2016
• 年：2016
• 卷：2
• 期：10
• 页码：726-733
• 全文大小：534K
• ISSN：2373-8227

文摘

Despite the existence of flu vaccines and small-molecule antiviral drugs, influenza virus infection remains a public health concern that warrants immediate attention. As resistance to the only orally bioavailable drug, oseltamivir, has been continuously reported, there is a clear need to develop the next-generation of anti-influenza drugs. We chose the influenza A virus M2-S31N mutant proton channel as the drug target to address this need as it is one of the most conserved viral proteins and persist in >95% of currently circulating influenza A viruses. In this study, we report the development of a late-stage diversification strategy for the expeditious synthesis of M2-S31N inhibitors. The channel blockage and antiviral activity of the synthesized compounds were tested in two-electrode voltage clamp assays and antiviral assays, respectively. Several M2-S31N inhibitors were identified to have potent M2-S31N channel blockage and micromolar antiviral efficacy against several M2-S31N-containing influenza A viruses.