Development and in vivo evaluation of MGF100-1R deletion mutant in an African swine fever virus Chinese strain

文献类型： 外文期刊

第一作者： Liu, Yingnan

作者： Liu, Yingnan;Li, Yao;Xie, Zhenhua;Ao, Qingying;Yu, Wanqi;Lv, Lu;Zhong, Qiuping;Song, Yingying;Liao, Xinxin;Chen, Hongjun;Wang, Heng;Di, Dongdong;Song, Qingqing

作者机构：

关键词： African swine fever virus; ASFV; MGF100-1R; Deletion mutant; Pathogenicity

期刊名称：VETERINARY MICROBIOLOGY （ 影响因子：3.293； 五年影响因子：3.599 ）

ISSN： 0378-1135

年卷期： 2021 年 261 卷

页码：

收录情况： SCI

摘要： African swine fever virus (ASFV) is a large nucleoplasmic DNA virus, in which the genome is around 170-198 kilobases (kb). More than 50 % genes have unknown functions. Here, MGF100-1R gene is chosen to study the primary function and sublocalization. The gene was located at the left variable region of the ASFV genome that belongs to MGF100 families. It located at the cytoplasm without cytotoxic activities. However, it related to induce the transcriptional levels of pro-inflammatory cytokines. A deletion mutant of MGF100-1R gene was constructed based on ASFV Chinese strain GZ201801. The recombinant deletion mutant (ASFV Delta MGF100-1R) was demonstrated in vitro that the gene is non-essential for virus replication with a similar replication kinetics in bone marrow-derived macrophages (BMDMs) cell cultures when compared to parental virus. In vivo evaluation, ASFV Delta MGF100-1R was inoculated intramuscularly and led to a similar pathogenesis that caused by the parental ASFV GZ201801, confirming that deletion of MGF100-1R gene from the ASFV genome does not impact virulence.

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