Effects on In vitro Replication of Equine Infectious Anemia Virus Attenuated Vaccine Strain With Truncated Mutation in The Transmembrane Protein
文献类型: 外文期刊
作者: Jiang Cheng-Gang 1 ; Ma Jian 2 ; Gao Xu 2 ; Lin Yue-Zhi 2 ; Zhao Li-Ping 2 ; Hua Yu-Ping 3 ; Liu Di 1 ; Zhou Jian-Hua 2 ;
作者机构: 1.Heilongjiang Acad Agr Sci, Livestock Res Ctr, Postdoctoral Workstn, Harbin 150086, Peoples R China
2.Chinese Acad Agr Sci, State Key Lab Vet Biotechnol, Harbin Vet Res Inst, Harbin 150001, Peoples R China
3.NE Forestry Univ, Postdoctoral Workstn, Harbin 150086, Peoples R China
4.Yanbian Univ, Vet Dept Agr Coll, Yanji 133002, Peoples R China
关键词: equine infectious anemia virus;gp45 transmembrane protein;truncated mutation;replication;apoptosis
期刊名称:PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS ( 影响因子:0.351; 五年影响因子:0.272 )
ISSN: 1000-3282
年卷期: 2010 年 37 卷 3 期
页码:
收录情况: SCI
摘要: Equine infectious anemia virus (EIAV) vaccine is the first successfully applied lentiviral vaccine, but its mechanism on inducing protective immunity is not clear. Previous studies found that the EIAV vaccine strain EIAV(FDDV12) transmembrane protein (gp45) had a high-frequent translational terminating mutation at the site of 261W, resulting in a truncation of 154 amino acid residues at the C-terminus. To explore the biological meaning of the gp45 truncation, a gp45-truncated molecular clone was constructed by using an infectious clone of EIAV(FDDV12) as the backbone. Replications features of the gp45-truncated EIAV and its prototype virus were analyzed and compared in cultivated monocyte-derived macrophages (MDM) of equine and donkey and fetal donkey dermal cells (FDD). Results showed that the replication capacity of the gp45-truncated EIAV in equine and donkey MDMs was significantly decreased compared to the untruncated gp45 EIAV(P < 0.01), especially in the horse macrophages. In contrast, the truncated EIAV replicated significantly faster than the untruncated EIAV in FDD cells (P < 0.01). In addition, the reduced replication of the gp45-truncated EIAV in equine MDM led to a significant decline of cytotoxicity of the host cells when compared with the gp45 untruncated EIAV (P < 0.05). These results suggest that the truncation of the 154-residue C-terminus of the EIAV gp45 glycoprotein was an adaptation to the attenuation of the EIAV vaccine strain in FDD cells. This truncated mutation reduces the replication of the vaccine strain in macrophages, the primary in vivo target cell of EIAV, which leads to a further attenuation of the vaccine.
- 相关文献
作者其他论文 更多>>
-
Growth performance and rumen microorganism differ between segregated weaning lambs and grazing lambs
作者:Ji Shou-kun;Jiang Cheng-gang;Diao Qi-yu;Tu Yan;Zhang Nai-feng;Si Bing-wen;Li Rui
关键词:weaning;grazing;growth performance;microorganism;methane emission
-
Macromineral requirements of Dorperxthin-tailed Han crossbred female lambs
作者:Ji Shou-kun;Diao Qi-yu;Jiang Cheng-gang;Tu Yan;Zhang Nai-feng;Xu Gui-shan;Deng Kai-dong
关键词:macrominerals;comparative slaughter trials;maintenance requirements;growth requirements;sheep
-
Energy requirements of Dorperxthin-tailed Han crossbred ewes during non-pregnancy and lactation
作者:Lou Can;Si Bing-wen;Ma Tao;Jiang Cheng-gang;Tu Yan;Zhang Nai-feng;Ji Shou-kun;Chen Dan-dan;Diao Qi-yu;Deng Kai-dong
关键词:net energy;metabolizable energy;ewe;lactation;digestible energy
-
Energy Requirements for Maintenance and Growth of German Mutton Merino Crossbred Lambs
作者:Deng Kai-dong;Diao Qi-yu;Jiang Cheng-gang;Tu Yan;Zhang Nai-feng;Liu Jie;Ma Tao;Zhao Yi-guang;Xu Gui-shan;Deng Kai-dong
关键词:efficiency;growth;maintenance;metabolizable energy;net energy;sheep
-
Effects of Different Energy Levels on Nutrient Utilization and Serum Biochemical Parameters of Early-Weaned Calves
作者:Zhang Rong;Diao Qi-yu;Zhang Nai-feng;Tu Yan;Jiang Cheng-gang
关键词:calf;milk replacer;energy;apparent digestibility;metabolic rate
-
Erythromycin Resistance of Streptococcus suis Isolates In Vivo
作者:Jiang Cheng-gang;Cai Xue-hui;Qiu Hua-ji;Li Yan-hua;Tong Heng-min;Liu Di-qiu;Lei Lian-cheng;Sun Chang-jiang
关键词:Streptococcus suis;erythromycin;in vivo;resistance
-
Preparation and Immunological Identification of Monoclonal Antibody Against JSRV-CA
作者:Luo Jun-Rong;Siriguleng;Liu Xiao-Hui;Ma Xue-En;Luo Jun-Rong;Zhou Jian-Hua
关键词:JSRV;epitope;capsid protein;antibody affinity;McAb



