An adenovirus-vectored vaccine based on the N protein of feline coronavirus elicit robust protective immune responses
文献类型： 外文期刊
作者： Wang, Yuanhong 1 ; Liu, Yun 1 ; Wang, Junna 1 ; Zhang, Miao 1 ; Deng, Xiaoying 1 ; Song, Junhan 1 ; Zhu, Jie 1 ; Yu, Lingxue 1 ; Li, Guoxin 1 ; Liu, Guangqing 1 ;
作者机构： 1.Chinese Acad Agr Sci, Shanghai Vet Res Inst, Shanghai 200241, Peoples R China
关键词： Feline coronavirus; Adenovirus vaccine; Nucleocapsid protein; Cellular immune response; SIgA
期刊名称：ANTIVIRAL RESEARCH （ 影响因子：7.6； 五年影响因子：5.8 ）
ISSN： 0166-3542
年卷期： 2024 年 223 卷
页码：
收录情况： SCI
摘要： Feline coronavirus (FCoV) is an unsegmented, single-stranded RNA virus belonging to the Alphacoronavirus genus. It can cause fatal feline infectious peritonitis (FIP) in cats of any ages. Currently, there are no effective prevention and control measures to against FCoV. In this study, we developed a recombinant adenovirus vaccine, AD5-N, based on the nucleocapsid(N) protein of FCoV. The immunogenicity of AD5-N was evaluated through intramuscular immunization in 6-week-old Balb/c mice and 9-12 months old cats. Compared to the control group, AD5-N specifically induced a significant increase in IgG and SIgA levels in the vaccinated mice. Furthermore, AD5-N not only effectively promoted strong cellular immune responses in cats but also induced high levels of specific SIgA, effectively helping cats resist FCoV infection. Our findings suggest that adenovirus vector vaccines based on the N gene have the potential to become candidate vaccines for the prevention and control of FCoV infection.
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