Proteins in pregnant swine serum promote the African swine fever virus replication: an iTRAQ-based quantitative proteomic analysis

文献类型： 外文期刊

第一作者： Yang, Jinke

作者： Yang, Jinke;Yuan, Xingguo;Hao, Yu;Shi, Xijuan;Yang, Xing;Yan, Wenqian;Chen, Lingling;Zhang, Dajun;Shen, Chaochao;Li, Dan;Zhu, Zixiang;Liu, Xiangtao;Zheng, Haixue;Zhang, Keshan

作者机构：

关键词： African swine fever virus; Pregnant swine serum; iTRAQ; DEPs; PCNA

期刊名称：VIROLOGY JOURNAL （ 影响因子：4.8； 五年影响因子：3.9 ）

ISSN：

年卷期： 2023 年 20 卷 1 期

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收录情况： SCI

摘要： African swine fever (ASF) is a severe infectious disease caused by the African swine fever virus (ASFV), seriously endangering the global pig industry. ASFV possesses a large genome, strong mutation ability, and complex immune escape mechanisms. Since the first case of ASF was reported in China in August 2018, it has had a significant impact on social economy and food safety. In the present study, pregnant swine serum (PSS) was found to promote viral replication; differentially expressed proteins (DEPs) in PSS were screened and identified using the isobaric tags for relative and absolute quantitation technology and compared with those in non-pregnant swine serum (NPSS). The DEPs were analyzed using Gene Ontology functional annotation, Kyoto Protocol Encyclopedia of Genes and Genome pathway enrichment, and protein-protein interaction networks. In addition, the DEPs were validated via western blot and RT-qPCR experiments. And the 342 of DEPs were identified in bone marrow-derived macrophages cultured with PSS compared with the NPSS. The 256 were upregulated and 86 of DEPs were downregulated. The primary biological functions of these DEPs involved signaling pathways that regulate cellular immune responses, growth cycles, and metabolism-related pathways. An overexpression experiment showed that the PCNA could promote ASFV replication whereas MASP1 and BST2 could inhibit it. These results further indicated that some protein molecules in PSS were involved in the regulation of ASFV replication. In the present study, the role of PSS in ASFV replication was analyzed using proteomics, and the study will be provided a basis for future detailed research on the pathogenic mechanism and host interactions of ASFV as well as new insights for the development of small-molecule compounds to inhibit ASFV.

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