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Molecular patterns of matrix protein 1 (M1): A strong predictor of adaptive evolution in H9N2 avian influenza viruses

文献类型： 外文期刊

作者： Zhu, Yanting 1 ; Cong, Yulin 1 ; Sun, Yixue 3 ; Sheng, Shouzhi 1 ; Liu, Chang 1 ; Jiang, Jianfeng 1 ; Li, Siqi 1 ; Zhang, Pengju 4 ; Gao, Chao 1 ; Zhao, Jinghui 1 ; Cong, Yanlong 1 ;

作者机构： 1.Jilin Univ, Minist Educ, Dept Anim Infect Dis, State Key Lab Diag & Treatment Severe Zoonot Infec, Changchun 130062, Peoples R China

2.Jilin Univ, Coll Vet Med, Changchun 130062, Peoples R China

3.Changchun Univ, Jilin Res & Dev Ctr Biomed Engn, Changchun 130022, Peoples R China

4.Jilin Acad Agr Sci, Inst Anim Biotechnol, Changchun 130033, Peoples R China

关键词： matrix protein M1; genetic pattern; virus replication; epidemiological dominance

期刊名称：PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA （ 影响因子：9.1； 五年影响因子：10.6 ）

ISSN： 0027-8424

年卷期： 2025 年 122 卷 9 期

页码：

收录情况： SCI

摘要： The H9N2 subtype of avian influenza virus (AIV) emerges as a significant member of the influenza A virus family. However, the varying degrees of epidemiological dominance among different lineages or clades of H9N2 AIVs have not been fully clarified. The matrix protein M1, a key structural component of the virion, plays a crucial role in maintaining the viral structure and lifecycle. To elucidate the intrinsic relationship between the genetic patterns of M1 and the adaptive dynamics of H9N2 AIVs, this study focused on the five major evolutionary patterns of M1 and conducted in vitro and in vivo investigations from the perspectives of vRNP release after viral uncoating, polymerase activity, mRNA and vRNA levels, the nuclear export of vRNPs, plasma membrane-binding capacity, proliferation capacity, growth competitiveness, and transmission potential. The results revealed a strong correlation between the epidemiological dominance of H9N2 AIVs and the specific patterns of M1, with M1P5 standing out as particularly significant. This finding highlights the pivotal influence of the M1 gene patterns on the replication and transmission dynamics of H9N2 AIVs, thereby offering valuable insights into the mechanisms driving differences in adaptive evolution and shifts in epidemiological dominance within the H9N2 AIV population.

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