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Updated: Sep 8, 2025

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Published on: August 29, 2017

在2010-2024年期间驱动抗体和流感病毒进化

Xiuhua Lu¹, Feng Liu¹, Wen-Pin Tzeng¹

¹Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.

Open forum infectious diseases

|August 20, 2025

概括

血液凝聚抑制抗体免疫主导性 (HAI- Ab- ID) 在成年人中很常见,并驱动流感病毒的演变. 监测HAI- Ab- ID和病毒变化对于提高流感疫苗的有效性至关重要.

科学领域:

免疫学
病毒学
流行病学

背景情况:

对于预测流感病毒抗原漂移来说,了解血液凝结抑制抗体免疫主导性 (HAI- Ab- ID) 是至关重要的.
这项研究调查了用A/California/07/2009类 (CA/09) 疫苗接种的成年人的表位特异性HAI-Ab-ID,并检查了A(H1N1) pdm09病毒演变.

研究的目的:

在用CA/09疫苗免疫成年人中探索表位特异性HAI- Ab- ID.
分析与HAI-Ab-ID相关的A(H1N1) pdm09病毒的演变.

主要方法:

使用HAI检测分析了300名成年人的血清 (2010-2016).
使用逆遗传病毒和历史的A(H1N1) 菌株来确定表位特异的HAI-Ab-ID.
使用抗体吸附试验和GISAID序列数据来验证特异性和分析病毒演变.

主要成果:

四种针对特定表位的HAI-Ab-ID在>50%的捐赠者中流行 (2010年至2016年).
交叉反应的HAI-Ab-ID转变为菌株特异的,免疫选择压力导致逃生突变的固定.
三种逃生突变 (K163Q,N129D,K130N) 在特定的季节变得固定的.

结论:

HAI- Ab- IDs是常见的,并显著影响流感病毒和抗体的演变.
这些变化的关键驱动因素是HAI-Ab介导的免疫选择和抑制.
持续监测病毒和HAI- Ab- ID的演变对于提高流感疫苗的有效性至关重要.

关键词:

抗体的演变抗体免疫优势血液凝聚抑制抗体流感疫苗病毒的演变

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