Article (Scientific journals)
Potent Protective Immune Responses to Senecavirus Induced by Virus-Like Particle Vaccine in Pigs.
Mu, Suyu; Sun, Shiqi; Dong, Hu et al.
2020In Vaccines, 8 (3), p. 1 - 13
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Keywords :
Senecavirus A; animal infection model; vaccine; virus-like particles; Immunology; Pharmacology; Drug Discovery; Infectious Diseases; Pharmacology (medical)
Abstract :
[en] Senecavirus A (SVA) is the pathogen that has recently caused porcine idiopathic vesicular disease (PIVD). The clinical symptoms of PIVD are similar to those of acute foot-and-mouth disease and also can result in the death of newborn piglets, thus entailing economic losses. Vaccine immunization is the most effective way to prevent and control SVA. Among all SVA vaccines reported, only the SVA inactivated vaccine has been successfully developed. However, to ensure the elimination of this pathogen, safer and more effective vaccines are urgently required. A virus-like particles (VLPs)-based vaccine is probably the best alternative to inactivated vaccine. To develop an SVA VLPs vaccine and evaluate its immune effect, a prokaryotic expression system was used to produce SVA capsid protein and assemble VLPs. The VLPs were characterized by affinity chromatography, sucrose density gradient centrifugation, ZetaSizer and transmission electron microscopy. Meanwhile, the SVA CH-HB-2017 strain was used to infect pigs and to determine infection routes and dose. Experimental pigs were then immunized with the SVA VLPs vaccine emulsified in an ISA 201 adjuvant. The results showed that the VLPs vaccine induced neutralizing and specific antibodies at similar levels as an inactivated SVA vaccine after immunization. The level of INF-γ induced by the VLPs vaccine gradually decreased-similar to that of inactivated vaccine. These results indicated that VLPs vaccine may simultaneously cause both cellular and humoral immune responses. Importantly, after the challenge, the VLPs vaccine provided similar levels of protection as the inactivated SVA vaccine. In this study, we successfully obtained novel SVA VLPs and confirmed their highly immunogenicity, thus providing a superior candidate vaccine for defense and elimination of SVA, compared to the inactivated vaccine.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Mu, Suyu;  Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
Sun, Shiqi;  Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
Dong, Hu;  Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
Bai, Manyuan;  Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
Zhang, Yun;  Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
Teng, Zhidong;  Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
Ren, Mei  ;  Université de Liège - ULiège > TERRA Research Centre ; Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
Yin, Shuanghui;  Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
Guo, Huichen;  Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China ; College of Animal Science, Yangtze University, Jingzhou 434025, China
Language :
English
Title :
Potent Protective Immune Responses to Senecavirus Induced by Virus-Like Particle Vaccine in Pigs.
Publication date :
15 September 2020
Journal title :
Vaccines
ISSN :
2076-393X
Publisher :
MDPI AG, Switzerland
Volume :
8
Issue :
3
Pages :
1 - 13
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
NSCF - National Natural Science Foundation of China
Funding text :
Funding: This work was supported by grants from the National Key Research and Development Program of China (2017YFD0500900, 2017YFD0501100, 2016YFE0204100), Central Public-interest Scientific Institution Basal Research Fund (1610312018003, 1610312016002), the National Natural Science Foundation of China (31672592, 31873023, 31811540395), Elite Youth program of Chinese Academy of Agricultural Sciences.This work was supported by grants from the National Key Research and Development Program of China (2017YFD0500900, 2017YFD0501100, 2016YFE0204100), Central Public-interest Scientific Institution Basal Research Fund (1610312018003, 1610312016002), the National Natural Science Foundation of China (31672592, 31873023, 31811540395), Elite Youth program of Chinese Academy of Agricultural Sciences. Acknowledgments: Thanks for the support of Lanzhou Veterinary Research Institute in the animal house to facilitate the active development of animal experiment.
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