POLM inhibits porcine epidemic diarrhea virus replication by degrading multiple viral structural proteins

文献类型： 外文期刊

第一作者： Cao, Xinyu

作者： Cao, Xinyu;Liu, Yingyu;Cao, Xinyu;Tong, Wu;Qin, Wenzhen;Yang, Xinyu;Yu, Hai;Zheng, Hao;Tong, Guangzhi;Kong, Ning;Shan, Tongling;Zhang, Wen;Kong, Ning;Shan, Tongling

作者机构：

关键词： POLM; PEDV; N protein; S2 protein; M protein; MARCH8; p62; autophagy

期刊名称：JOURNAL OF VIROLOGY （ 影响因子：3.8； 五年影响因子：3.9 ）

ISSN： 0022-538X

年卷期： 2025 年 99 卷 3 期

页码：

收录情况： SCI

摘要： Porcine epidemic diarrhea, as a porcine epidemic diarrhea virus (PEDV)-induced infectious intestinal condition typified by diarrhea, emesis, dehydration, and anorexia, leads to death rates as high as 100% among suckling piglets. Given the existing commercial vaccines, it is essential to study host-virus interactions and formulate efficient anti-viral regimes. This study concerned a host factor POLM (a DNA polymerase family member) that exerts an anti-viral effect against PEDV proliferation. Our results indicated that POLM expression was increased following PEDV infection and was regulated by the transcription factor FOXA1. In addition, our findings indicated that POLM targeted and degraded PEDV structural proteins (N, S2, and M) by the autophagy pathway to inhibit PEDV proliferation. POLM could recruit the E3 ubiquitination ligase MARCH8 for N, S2, and M protein ubiquitination, which was subsequently recognized by p62, a cargo receptor, for translocation to the autophagic lysosome, therefore degrading the N, S2, and M proteins and preventing PEDV proliferation. In summary, we showed a novel therapeutic target for combating PEDV, i.e., using the POLM-MARCH8-p62-autophagosome pathway to degrade the PEDV N, S2, and M proteins.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序