The kinetics and protection of the antiviral state induced by recombinant iIFN1a in rainbow trout against infectious hematopoietic necrosis virus
文献类型： 外文期刊
作者： Cao, Yongsheng 1 ; Xu, Liming 1 ; LaPatra, Scott E. 3 ; Zhao, Jingzhuang 1 ; Liu, Miao 1 ; Liu, Hongbai 1 ; Lu, Tongya 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Dept Aquaculture, Harbin 150070, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
3.Clear Springs Foods Inc, Div Res, POB 712, Buhl, ID 83316 USA
关键词： ilFN1a of rainbow trout; Prokaryotic expressing; Antiviral state against IHNV in vivo; Variant protection
期刊名称：MOLECULAR IMMUNOLOGY （ 影响因子：4.407； 五年影响因子：4.227 ）
ISSN： 0161-5890
年卷期： 2016 年 76 卷
页码：
收录情况： SCI
摘要： The iIFN1a (intracellular IFN-a1), that is one of the IFN-a1 variants, was shown to be functional intracellularly and act as a novel defense against an infectious.hematopoietic necrosis virus (IHNV). To determine its antiviral properties, a recombinant iIFN1a was generated in Escherichia coli. Its antiviral activity against IHNV was 1.69 x 10(7) U/mg in CHSE-214 cells. Additionally, iIFN1a was capable of inducing comparable levels of IRF-1, IRF-2, IFN-1, IFN-gamma and Mx transcription in head kidney, spleen and liver tissues at an early time point (6 h), that was followed by a rapid decline 24 h after induction. The recombinant protein also elicited protection against IHNV in vivo. At 6 and 24 h after induction there was 100% protection against the virus, however, at 48 and 72 h the protection decreased to 57 and 40%, respectively. The in vivo protection kinetics correlated with the kinetics of gene expression. The results of this study provide details of the antiviral state that was induced by iIFN1a in vivo for the first time. Additionally, this information will facilitate the development of this recombinant protein as a potential anti-viral treatment and/or adjuvant. (C) 2016 Elsevier Ltd. All rights reserved.
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