Inactivated Recombinant Rabies Viruses Displaying Canine Distemper Virus Glycoproteins Induce Protective Immunity against Both Pathogens
文献类型: 外文期刊
第一作者: Budaszewski, Renata da Fontoura
作者: Budaszewski, Renata da Fontoura;Budaszewski, Renata da Fontoura;Sawatsky, Bevan;Kraemer, Beate;von Messling, Veronika;Sawatsky, Bevan;von Messling, Veronika;Hudacek, Andrew;Yin, Xiangping;Schnell, Matthias J.;Yin, Xiangping
作者机构:
关键词: antibody responses;bivalent vaccine;canine distemper virus;ferret model;rabies virus;wildlife species
期刊名称:JOURNAL OF VIROLOGY ( 影响因子:5.103; 五年影响因子:5.078 )
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收录情况: SCI
摘要: The development of multivalent vaccines is an attractive methodology for the simultaneous prevention of several infectious diseases in vulnerable populations. Both canine distemper virus (CDV) and rabies virus (RABV) cause lethal disease in wild and domestic carnivores. While RABV vaccines are inactivated, the liveattenuated CDV vaccines retain residual virulence for highly susceptible wildlife species. In this study, we developed recombinant bivalent vaccine candidates based on recombinant vaccine strain rabies virus particles, which concurrently display the protective CDV and RABV glycoprotein antigens. The recombinant viruses replicated to near-wild-type titers, and the heterologous glycoproteins were efficiently expressed and incorporated in the viral particles. Immunization of ferrets with beta-propiolactone-inactivated recombinant virus particles elicited protective RABV antibody titers, and animals immunized with a combination of CDV attachment protein-and fusion protein-expressing recombinant viruses were protected from lethal CDV challenge. However, animals that were immunized with only a RABV expressing the attachment protein of CDV vaccine strain Onderstepoort succumbed to infection with a more recent wild-type strain, indicating that immune responses to the more conserved fusion protein contribute to protection against heterologous CDV strains.
分类号: Q934.2
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