关键词: baloxavir cap-dependent endonuclease inhibitors drug susceptibility lectin polymerase

Mesh : Antiviral Agents / pharmacology Humans Triazines / pharmacology Dibenzothiepins / pharmacology Gammainfluenzavirus / drug effects genetics Morpholines / pharmacology Pyridones / pharmacology Animals Antibodies, Monoclonal / pharmacology Madin Darby Canine Kidney Cells Dogs Cyclopropanes / pharmacology Influenza A virus / drug effects Neutralization Tests Pyridines / pharmacology

来  源:   DOI:10.1128/aac.01727-23   PDF(Pubmed)

Abstract:
Antiviral susceptibility of influenza viruses was assessed using a high-content imaging-based neutralization test. Cap-dependent endonuclease inhibitors, baloxavir and AV5116, were superior to AV5115 against type A viruses, and AV5116 was most effective against PA mutants tested. However, these three inhibitors displayed comparable activity (EC50 8-22 nM) against type C viruses from six lineages. Banana lectin and a monoclonal antibody, YA3, targeting the hemagglutinin-esterase protein effectively neutralized some, but not all, type C viruses.
摘要:
使用基于高含量成像的中和试验评估流感病毒的抗病毒易感性。帽依赖性核酸内切酶抑制剂,baloxavir和AV5116,优于AV5115对A型病毒,AV5116对测试的PA突变体最有效。然而,这三种抑制剂对来自6个谱系的C型病毒显示出相当的活性(EC508-22nM)。香蕉凝集素和单克隆抗体,YA3,靶向血凝素酯酶蛋白有效中和一些,但不是全部,C型病毒。
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