Genomic comparison between attenuated Chinese equine infectious anemia virus vaccine strains and their parental virulent strains

被引：26
|
作者：
Wang, Xuefeng [1 ,2 ]
Wang, Shuai [1 ]
Lin, Yuezhi [1 ]
Jiang, Chenggang [1 ]
Ma, Jian [1 ]
Zhao, Liping [1 ]
Lv, Xiaoling [1 ]
Wang, Fenglong [2 ]
Shen, Rongxian [1 ]
Kong, Xiangang [1 ]
Zhou, Jianhua [1 ]
机构：
[1] Chinese Acad Agr Sci, Harbin Vet Res Inst, Stated Key Lab Vet Biotechnol, Div Large Anim Infect Dis, Harbin 150001, Peoples R China
[2] Inner Mongolia Agr Univ, Anim Sci & Anim Med Sch, Hohhot 010018, Peoples R China
来源：
ARCHIVES OF VIROLOGY | 2011年 / 156卷 / 02期
基金：
中国国家自然科学基金;
关键词：
LONG TERMINAL REPEAT; REPLICATION IN-VITRO; IMMUNODEFICIENCY-VIRUS; PROTEIN; VIVO; DETERMINANT; LYMPHOCYTES; PHENOTYPE; HORSES; REGION;
D O I：
10.1007/s00705-010-0877-8
中图分类号：
Q93 [微生物学];
学科分类号：
071005 ; 100705 ;
摘要：
A lentiviral vaccine, live attenuated equine infectious anemia virus (EIAV) vaccine, was developed in the 1970s, and this has made tremendous contributions to the control of equine infectious anemia (EIA) in China. Four key virus strains were generated during the attenuation of the EIAV vaccine: the original Liao-Ning strain (EIAV(LN40)), a donkey-adapted virulent strain (EIAV(DV117)), a donkey-leukocyte-attenuated vaccine strain (EIAV(DLV121)), and a fetal donkey dermal cell (FDD)-adapted vaccine strain (EIAV(FDDV13)). In this study, we analyzed the proviral genomes of these four EIAV strains and found a series of consensus substitutions among these strains. These mutations provide useful information for understanding the genetic basis of EIAV attenuation. Our results suggest that multiple mutations in a variety of genes in our attenuated EIAV vaccines not only provide a basis for virulence attenuation and induction of protective immunity but also greatly reduce the risk of reversion to virulence.
引用
收藏
页码：353 / 357
页数：5
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