Recombinant rabies virus expressing the H protein of canine distemper virus protects dogs from the lethal distemper challenge
文献类型: 外文期刊
第一作者: Wang, Feng-Xue
作者: Wang, Feng-Xue;Zhang, Shu-Qin;Zhu, Hong-Wei;Yang, Yong;Sun, Na;Tan, Bin;Li, Zhen-Guang;Cheng, Shi-Peng;Wen, Yong-Jun;Li, Zhen-Guang;Fu, Zhen F.
作者机构:
关键词: Canine distemper virus;Rabies virus;Hemagglutinin gene;Replicating viral vector;Dog
期刊名称:VETERINARY MICROBIOLOGY ( 影响因子:3.293; 五年影响因子:3.599 )
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收录情况: SCI
摘要: The rabies virus (RV) vector LBNSE expressing foreign antigens have shown considerable promise as vaccines against viral and bacteria diseases, which is effective and safe. We produced a new RV-based vaccine vehicle expressing 1.824 kb hemagglutinin (H) gene of the canine distemper virus (CDV) by reverse genetics technology. The recombinant virus LBNSE-CDV-H retained growth properties similar to those of vector LBNSE both in BSR and mNA cell culture. The H gene of CDV was expressed and detected by immunostaining. To compare the immunogenicity of LBNSE-CDV-H, dogs were immunized with each of these recombinant viruses by intramuscular (i.m.). The dogs were bled at third weeks after the immunization for the measurement of virus neutralizing antibody (VNA) and then challenged with virulent virus (ZJ 7) at fourth weeks. The parent virus (LBNSE) without expression of any foreign molecules was included for comparison. Dogs inoculated with LBNSE-CDV-H showed no any signs of disease and exhibited seroconversion against both RV and CDV H protein. The LBNSE-CDV-H did not cause disease in dogs and conferred protection from challenge with a lethal wild type CDV strain, demonstrating its potential value for wildlife conservation efforts. Together, these studies suggest that recombinant RV expressing H protein from CDV stimulated high levels of adaptive immune responses (VNA), and protected all dogs challenge infection. (C) 2014 Elsevier B.V. All rights reserved.
分类号: S8
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