A transcriptome analysis focusing on splenic immune-related mciroRNAs of rainbow trout upon Aeromonas salmonicida subsp. salmonicida infection
文献类型： 外文期刊
作者： Cao, Yongsheng 1 ; Wang, Di 1 ; Li, Shaowu 1 ; Zhao, Jingzhuang 1 ; Xu, Liming 1 ; Liu, Hongbai 1 ; Lu, Tongyan 1 ; Mou, 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Dept Aquaculture, Lab Fish Dis, Songfa St 43, Harbin 150070, Heilongjiang, Peoples R China
2.Tibet Acad Agr & Anim Husb Sci, Inst Fisheries Sci, 130 Jinzhu West Rd, Lhasa 850002, Tibet, Peoples R China
关键词： mciroRNAs; Rainbow trout; Aeromonas salmonicida subsp. salmonicida; Immune
期刊名称：FISH & SHELLFISH IMMUNOLOGY （ 影响因子：4.581； 五年影响因子：4.851 ）
ISSN： 1050-4648
年卷期： 2019 年 91 卷
页码：
收录情况： SCI
摘要： MicroRNAs (miRNAs) are a class of small non-coding RNAs that can regulate the immune responses during pathogen infection. Aeromonas salmonicida (A. salmonicida) subsp. salmonicida is the causative agent of furunculosis in salmon and trout. To identify the miRNAs and investigate the specific miRNAs in rainbow trout upon A. salmonicida subsp. salmonicida infection, we performed high throughput sequencing using the spleens of rainbow trout infected with and without an A. salmonicida subsp. salmonicida clinical isolate. A total of 381 known miRNAs and 926 novel miRNAs were identified. Eleven known and 16 novel miRNAs were found to be differentially expressed upon infection. The results of Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses indicated that the target genes of the differentially expressed miRNAs were closely associated with immune responses and biological regulations. Additionally, over- and suppressed expression of miR-155-5p significantly enhanced and reduced the IL-2 and IL-1 beta expressions in RTG-2 cells induced by A. salmonicida, respectively. To our knowledge, this is the first experimental study on the miRNAs of rainbow trout upon A. salmonicida infection. The results here might lay a foundation for the further understanding of the roles of miRNAs in the immune responses during A. salmonicida infection in rainbow trout.
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