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Li L, Du Y, Zhang Y, Li P, Liu X, Zhang X, Li J, Zhang T, Li X, Xiao D, Liu P, Qi P, Xiao J. Comprehensive evaluation of the safety and immunogenicity of a gene-deleted variant pseudorabies virus attenuated vaccine. Vet Res 2022; 53:73. [PMID: 36138470 PMCID: PMC9502647 DOI: 10.1186/s13567-022-01091-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 07/12/2022] [Indexed: 11/15/2022] Open
Abstract
Pseudorabies virus (PRV) variant infections have caused a substantial economic impact on swine production in the absence of new powerful candidate vaccines. In this study, we developed and evaluated a gene-deleted variant pseudorabies virus (PRV)-attenuated vaccine, PRV GX-ΔTK/IES, in which the genes TK, gI, gE, US9 and US2 were deleted. During a study of innocuousness, all mice inoculated with PRV GX-ΔTK/IES survived, neither clinical signs nor pathological changes were observed, and viral genomes could not be detected in the blood and tissues. All piglets inoculated with high titres of PRV GX-ΔTK/IES remained clinically healthy, and neither fever nor clinical signs were observed. Viral detection results were negative in nasal swab samples, blood and tissue samples. Moreover, none of the cohabitated piglets seroconverted during a trial on horizontal transmission. The immunogenicity was assessed through a vaccination and challenge experiment in piglets. Piglets vaccinated with PRV GX-ΔTK/IES and the commercial vaccine were completely protected from subsequent PRV infection, and the level of immunity and protection induced by PRV GX-ΔTK/IES was better than that provided by the live commercial vaccine. Thus, PRV GX-ΔTK/IES is completely safe for both nontarget and target animals and can be regarded as a novel live gene-deleted PRV vaccine candidate.
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Affiliation(s)
- Ling Li
- Key Laboratory of Veterinary Bioproduction and Chemical Medicine of the Ministry of Agriculture, Engineering and Technology Research Center for Beijing Veterinary Peptide Vaccine Design and Preparation, Zhongmu Institute of China Animal Husbandry Industry, Co., Ltd., Beijing, China.
| | - Yongfeng Du
- Cahic Chengdu Machinery Factory, Chengdu, 610100, China
| | - Yanbin Zhang
- Key Laboratory of Veterinary Bioproduction and Chemical Medicine of the Ministry of Agriculture, Engineering and Technology Research Center for Beijing Veterinary Peptide Vaccine Design and Preparation, Zhongmu Institute of China Animal Husbandry Industry, Co., Ltd., Beijing, China
| | - Pengyu Li
- Key Laboratory of Veterinary Bioproduction and Chemical Medicine of the Ministry of Agriculture, Engineering and Technology Research Center for Beijing Veterinary Peptide Vaccine Design and Preparation, Zhongmu Institute of China Animal Husbandry Industry, Co., Ltd., Beijing, China
| | - Xinyue Liu
- Key Laboratory of Veterinary Bioproduction and Chemical Medicine of the Ministry of Agriculture, Engineering and Technology Research Center for Beijing Veterinary Peptide Vaccine Design and Preparation, Zhongmu Institute of China Animal Husbandry Industry, Co., Ltd., Beijing, China
| | - Xin Zhang
- Key Laboratory of Veterinary Bioproduction and Chemical Medicine of the Ministry of Agriculture, Engineering and Technology Research Center for Beijing Veterinary Peptide Vaccine Design and Preparation, Zhongmu Institute of China Animal Husbandry Industry, Co., Ltd., Beijing, China
| | - Jing Li
- Key Laboratory of Veterinary Bioproduction and Chemical Medicine of the Ministry of Agriculture, Engineering and Technology Research Center for Beijing Veterinary Peptide Vaccine Design and Preparation, Zhongmu Institute of China Animal Husbandry Industry, Co., Ltd., Beijing, China
| | - Tong Zhang
- Key Laboratory of Veterinary Bioproduction and Chemical Medicine of the Ministry of Agriculture, Engineering and Technology Research Center for Beijing Veterinary Peptide Vaccine Design and Preparation, Zhongmu Institute of China Animal Husbandry Industry, Co., Ltd., Beijing, China
| | - Xin Li
- Cahic Jiangxi Biological Pharmaceutical Factory, Nanchang, 330200, China
| | - Dong Xiao
- Cahic Jiangxi Biological Pharmaceutical Factory, Nanchang, 330200, China
| | - Peng Liu
- Animal Husbandry and Veterinary Station of Wendeng District, Shandong, 264400, Weihai, China
| | - Peng Qi
- Key Laboratory of Veterinary Bioproduction and Chemical Medicine of the Ministry of Agriculture, Engineering and Technology Research Center for Beijing Veterinary Peptide Vaccine Design and Preparation, Zhongmu Institute of China Animal Husbandry Industry, Co., Ltd., Beijing, China
| | - Jin Xiao
- Key Laboratory of Veterinary Bioproduction and Chemical Medicine of the Ministry of Agriculture, Engineering and Technology Research Center for Beijing Veterinary Peptide Vaccine Design and Preparation, Zhongmu Institute of China Animal Husbandry Industry, Co., Ltd., Beijing, China.
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Ma Y, Tian S, Wan Q, Kong Y, Liu C, Tian K, Ning H, Xu X, Qi B, Yang G. Peptidomic Analysis on Mouse Lung Tissue Reveals AGDP as a Potential Bioactive Peptide against Pseudorabies Virus Infection. Int J Mol Sci 2022; 23:ijms23063306. [PMID: 35328729 PMCID: PMC8951067 DOI: 10.3390/ijms23063306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/10/2022] [Accepted: 03/16/2022] [Indexed: 02/04/2023] Open
Abstract
Pseudorabies virus (PRV) infection could cause severe histopathological damage via releasing multiple factors, including cytokines, peptides, etc. Here, peptidomic results showed that 129 peptides were identified in PRV-infected mouse lungs and were highly involved in the process of PRV infection. The role of one down-regulated biological peptide (designated as AGDP) during PRV infection was investigated. To verify the expression profiles of AGDP in response to PRV infection, the expression level of the precursor protein of AGDP mRNA was significantly decreased in PRV-infected mouse lungs and cells. The synthesized AGDP-treating cells were less susceptible to PRV challenges than the controls, as demonstrated by the decreased virus production and gE expression. AGDP not only inhibited the expression of TNF-α and IL-8 but also appeared to suppress the extracellular release of high-mobility group box 1 (HMGB1) by inhibiting the output of nuclear HMGB1 in cells. AGDP could also inhibit the degradation of IκBα and the phosphorylation levels of P65 after PRV infection. In total, our results revealed many meaningful peptides involved in PRV infection, thereby enhancing the current understanding of the host response to PRV infection, and how AGDP may serve as a promising candidate for developing novel anti-PRV drugs.
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Affiliation(s)
- Yijie Ma
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, College of Animal Sciences (College of Bee Science), Fujian Agricultural and Forestry University, Fuzhou 350002, China; (Y.M.); (S.T.); (Q.W.); (Y.K.); (C.L.); (H.N.); (X.X.); (B.Q.)
| | - Shimao Tian
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, College of Animal Sciences (College of Bee Science), Fujian Agricultural and Forestry University, Fuzhou 350002, China; (Y.M.); (S.T.); (Q.W.); (Y.K.); (C.L.); (H.N.); (X.X.); (B.Q.)
| | - Qianhui Wan
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, College of Animal Sciences (College of Bee Science), Fujian Agricultural and Forestry University, Fuzhou 350002, China; (Y.M.); (S.T.); (Q.W.); (Y.K.); (C.L.); (H.N.); (X.X.); (B.Q.)
| | - Yingying Kong
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, College of Animal Sciences (College of Bee Science), Fujian Agricultural and Forestry University, Fuzhou 350002, China; (Y.M.); (S.T.); (Q.W.); (Y.K.); (C.L.); (H.N.); (X.X.); (B.Q.)
| | - Chang Liu
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, College of Animal Sciences (College of Bee Science), Fujian Agricultural and Forestry University, Fuzhou 350002, China; (Y.M.); (S.T.); (Q.W.); (Y.K.); (C.L.); (H.N.); (X.X.); (B.Q.)
| | - Ke Tian
- College of JIN SHAN, Fujian Agricultural and Forestry University, Fuzhou 350002, China;
| | - Hongya Ning
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, College of Animal Sciences (College of Bee Science), Fujian Agricultural and Forestry University, Fuzhou 350002, China; (Y.M.); (S.T.); (Q.W.); (Y.K.); (C.L.); (H.N.); (X.X.); (B.Q.)
| | - Xiaodong Xu
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, College of Animal Sciences (College of Bee Science), Fujian Agricultural and Forestry University, Fuzhou 350002, China; (Y.M.); (S.T.); (Q.W.); (Y.K.); (C.L.); (H.N.); (X.X.); (B.Q.)
| | - Baomin Qi
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, College of Animal Sciences (College of Bee Science), Fujian Agricultural and Forestry University, Fuzhou 350002, China; (Y.M.); (S.T.); (Q.W.); (Y.K.); (C.L.); (H.N.); (X.X.); (B.Q.)
| | - Guihong Yang
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, College of Animal Sciences (College of Bee Science), Fujian Agricultural and Forestry University, Fuzhou 350002, China; (Y.M.); (S.T.); (Q.W.); (Y.K.); (C.L.); (H.N.); (X.X.); (B.Q.)
- Correspondence:
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