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Biochemical, metabolic, and immune responses of mud crab (Scylla paramamosain) after mud crab reovirus infection

文献类型： 外文期刊

作者： Cheng, ChangHong 1 ; Ma, HongLing 1 ; Liu, GuangXin 1 ; Deng, YiQing 1 ; Jiang, JianJun 1 ; Feng, Juan 1 ; Guo, ZhiXun 1 ;

作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Key Lab South China Sea Fishery Resources Exploita, Minist Agr & Rural Affairs, Guangzhou 510300, Guangdong, Peoples R China

关键词： Scylla paramamosain; Mud crab reovirus; Metabolic response; Transcriptome; Immune response

期刊名称：FISH & SHELLFISH IMMUNOLOGY （ 影响因子：4.622； 五年影响因子：4.799 ）

ISSN： 1050-4648

年卷期： 2022 年 127 卷

页码：

收录情况： SCI

摘要： Mud crab reovirus (MCRV) is a serious pathogen that leads to large economic losses in the mud crab farming. However, the molecular mechanism of the immune response after MCRV infection is unclear. In the present study, physiological, transcriptomic, and metabolomic responses after MCRV infection were investigated. The results showed that MCRV infection could increase lactate dehydrogenase, alanine aminotransferase, and aspartate aminotransferase activities. MCRV infection decreased antioxidant enzyme activity levels, induced oxidative stress, and caused severe histological damage. Transcriptome analysis identified 416 differentially expressed genes, including 354 up-regulated and 62 down-regulated genes. The detoxification, immune response, and metabolic processes-related genes were found. The results showed that two key pathways including phagocytosis and apoptosis played important roles in response to MCRV infection. The combination of transcriptomic and metabolomic analyses showed that related metabolic pathways, such as glycolysis, citrate cycle, lipid, and amino acid metabolism were also significantly disrupted. Moreover, the biosynthesis of unsaturated fatty acids was activated in response to MCRV infection. This study provided a novel insight into the understanding of cellular mechanisms in crustaceans against viral invasion.

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