靶向流感病毒神经氨酸酶的人源单克隆抗体研究进展

Research progress of human monoclonal antibodies targeting influenza virus neuraminidase

  • 摘要: 神经氨酸酶是流感病毒表面的一种糖蛋白, 在病毒逃逸的过程中起着突出的作用, 是稳定的候选药物靶点。针对神经氨酸酶活性位点的单克隆抗体可以结合多种流感病毒亚型, 并通过中和作用, 介导抗体依赖性的细胞介导的细胞毒作用和补体依赖的细胞毒性作用等多种方式抑制流感病毒的感染。在体内实验中, 靶向流感病毒神经氨酸酶的人源单克隆抗体能够有效发挥预防和治疗作用, 保护感染致死剂量的小鼠和降低小鼠肺部病毒滴度。本文综述了目前报道的靶向甲型流感病毒和乙型流感病毒神经氨酸酶的人源单克隆抗体, 为后续抗流感药物的研发提供新的思路和展望。

     

    Abstract: Neuraminidase (NA), a glycoprotein on the surface of the influenza virus, plays a crucial role in viral escape and serves as a stable target for drug candidates. Monoclonal antibodies targeting the NA active site can bind to multiple influenza virus subtypes and inhibit the spread of influenza virus through various mechanisms, such as neutralizing, mediating antibody-dependent cell-mediated cytotoxicity and complement-dependent cytotoxicity. In vivo experiments have shown that human monoclonal antibodies targeting the influenza virus NA can effectively exert preventive and therapeutic effects, rescuing mice infected with lethal doses and reducing viral titers in lungs of mice. This article provides a review of the currently reported human monoclonal antibodies targeting NA of Influenza A and Influenza B viruses, providing new ideas and prospects for the subsequent development of anti-influenza drugs.

     

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