Generation of infectious and pathogenic duck hepatitis virus type 1 from cloned full-length cDNA
文献类型: 外文期刊
作者: Yun, T. 2 ; Ni, Z. 3 ; Liu, G. Q. 1 ; Yu, B. 3 ; Chen, L. 3 ; Huang, J. G. 3 ; Zhang, Y. M. 2 ; Chen, J. P. 3 ;
作者机构: 1.Chinese Acad Agr Sci, Dept Avian Infect Dis, Shanghai Vet Res Inst, Key Lab Anim Parasitol,Chines Minist Agr, Shanghai 200241, Peoples R China
2.NW A&F Univ, Coll Vet Med, Yongling 712100, Shaanxi, Peoples R China
3.Zhejiang Acad Agr Sci, Inst Virol & Biotechnol, Hangzhou 310021, Zhejiang, Peoples R China
关键词: RNA viruses;Picornaviruses;Infectious cDNA;Duck hepatitis virus type 1
期刊名称:VIRUS RESEARCH ( 影响因子:3.303; 五年影响因子:3.445 )
ISSN: 0168-1702
年卷期: 2010 年 147 卷 2 期
页码:
收录情况: SCI
摘要: A full-length cDNA clone of duck hepatitis virus type 1 (DHV-1) isolated from duck was assembled in the plasmid vector pBluescript II SK+. RNA synthesized in vitro by means of a Sp6 promoter inserted in front of the cDNA produced infectious particles after transfection of BHK-21 cells, as shown by the appearance of cytopathic effect. The rescued virus was also found to be highly pathogenic to young ducks by intradermal injection and resulted in a fatal disease indistinguishable from that of wild-type virus. The availability of the first cDNA clone of DHV-1 will allow examination of the molecular mechanisms behind DHV-1 virulence and attenuation, which could in turn lead to the production of second-generation, genetically engineered DHV-1 vaccines. (C) 2009 Elsevier B.V. All rights reserved.
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