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Deng L, Liu C, Li L, Hao P, Wang M, Jin N, Yin R, Du S, Li C. Genomic characteristics of an avipoxvirus 282E4 strain. Virus Res 2023; 336:199218. [PMID: 37678517 PMCID: PMC10507152 DOI: 10.1016/j.virusres.2023.199218] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 09/02/2023] [Accepted: 09/04/2023] [Indexed: 09/09/2023]
Abstract
Avipoxvirus 282E4 strain was extensively applied into recombinant vaccine vector to prevent other infectious diseases. However, little information on the genomic background, functional and genetic evolutionary of the isolate 282E4 strain was clarified. The results showed that the linear genome of avipoxvirus 282E4 was 308,826 bp, containing 313 open reading frames (ORFs) and 12 new predicted ORFs. The 282E4 strain appears to encode two novel thymidine kinase proteins and two TGF-beta-like proteins that may be associated with the suppression of the host's antiviral response. Avipoxvirus 282E4 also encodes 57 ankyrin repeat proteins and 5 variola B22R-like proteins, which composed 7% of the avipoxvirus 282E4 genome. GO and KEGG analysis further revealed that 12 ORFs participate in viral transcription process, 7 ORFs may function during DNA repair, replication and biological synthesis, and ORF 208 is involved in the process of virus life cycle. Interestingly, phylogenetic analysis based on concatenated sequences p4b and DNA polymerase of avipoxviruses gene demonstrates that avipoxvirus 282E4 strain is divergent from known FWPV isolates and is similar to shearwater poxvirus (SWPV-1) that belongs to the CNPV-like virus. Sequencing avipoxvirus 282E4 is a significant step to judge the genetic position of avipoxviruses within the larger Poxviridae phylogenetic tree and provide a new insight into the genetic background of avipoxvirus 282E4 and interspecies transmission of poxviruses, meanwhile, explanation of gene function provides theoretical foundation for vaccine design with 282E4 strain as skeleton.
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Affiliation(s)
- Lingcong Deng
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Research Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Changchun Institute of Veterinary Medicine, Chinese Academy of Agricultural Sciences, Changchun, China
| | - Cunxia Liu
- Institute of Poultry Science, Shandong Academy of Agricultural Sciences/Shandong Provincial Key Laboratory of Immunity and Diagnosis of Poultry Diseases, Jinan, 250100, China
| | - Letian Li
- Research Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Changchun Institute of Veterinary Medicine, Chinese Academy of Agricultural Sciences, Changchun, China
| | - Pengfei Hao
- Research Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Changchun Institute of Veterinary Medicine, Chinese Academy of Agricultural Sciences, Changchun, China
| | - Maopeng Wang
- Research Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Changchun Institute of Veterinary Medicine, Chinese Academy of Agricultural Sciences, Changchun, China
| | - Ningyi Jin
- Research Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Changchun Institute of Veterinary Medicine, Chinese Academy of Agricultural Sciences, Changchun, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China
| | - Ronglan Yin
- Academy of Animal Science and Veterinary Medicine in Jilin Province, Changchun, 130062, China.
| | - Shouwen Du
- Research Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Changchun Institute of Veterinary Medicine, Chinese Academy of Agricultural Sciences, Changchun, China.
| | - Chang Li
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Research Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Changchun Institute of Veterinary Medicine, Chinese Academy of Agricultural Sciences, Changchun, China.
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RAJASEKARAN RANJANI, KIRUBAHARAN JJOHN, SHILPA P, VIDHYA M, RAJALAKSHMI S. Viral 2A-peptides mediate continuous transcription and self-cleavage of multiple heterologous genes in fowlpox virus vector. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2021. [DOI: 10.56093/ijans.v90i9.109445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Applicability of viral 2A-peptides in generation of multi-cistronic transcripts to deliver separate self-cleaved proteins is well established. However, the use of viral 2A-peptides in fowlpox virus vector construction to co-express multiple heterologous genes has not been explored. To evaluate the same, a recombinant transfer plasmid pJFWPVt was constructed through two intermediate plasmid constructs, pJF7F9 and pJFHNGFP. The construction of pJF7F9 involved cloning of F7 and F9 genes of FWPV into pCI-neo with modifications in the F7-F9 intergenic region. For the construction of pJFHNGFP, a synthetic DNA adapter consisting of one synthetic early late promoter (PE/L), two viral 2A-peptides (P2A and T2A) and three multiple cloning sites (MCS1, MCS2 and MCS3) was synthesized chemically and was cloned into pUC19 to obtain pJFHNGFPi. Heterologous genes fusion (F) and haemagglutininneuraminidase (HN) of Avian Avulavirus-1 (AAv1) and marker gene AcGFP were cloned sequentially into MCS1, MCS2 and MCS3 of pJFHNGFPi to obtain pJFHNGFP. The insert (PE/L-F-P2A-HN-T2A-AcGFP) in pJFHNGFP was cloned into pJF7F9 to obtain pJFWPVt, which upon transfection in FWPV infected chicken embryo fibroblast (CEF) cells resulted in fluorescence. This confirmed the expression of AcGFP and the continuous transcription ability of viral 2A-peptides. Further, western blotting of CEF pellet showed separate protein bands of F and HN protein at 66 kDa and 74 kDa respectively, which confirmed the self-cleaving ability of viral 2A-peptides. Herein, in FWPV vector construction, continuous transcription and self-cleaving ability of viral 2A-peptides in FWPV vector construction was confirmed. This warrants scope for future viral 2A-peptide based FWPV vector construction.
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Capripoxvirus vectors for vaccine development. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Chen S, Xu N, Ta L, Li S, Su X, Xue J, Du Y, Qin T, Peng D. Recombinant Fowlpox Virus Expressing gB Gene from Predominantly Epidemic Infectious Larygnotracheitis Virus Strain Demonstrates Better Immune Protection in SPF Chickens. Vaccines (Basel) 2020; 8:vaccines8040623. [PMID: 33105740 PMCID: PMC7711474 DOI: 10.3390/vaccines8040623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/07/2020] [Accepted: 10/08/2020] [Indexed: 02/06/2023] Open
Abstract
Background: Infectious laryngotracheitis (ILT) is a highly contagious acute respiratory disease of chickens. Antigenic mutation of infectious laryngotracheitis virus (ILTV) may result in a vaccination failure in the poultry industry and thus a protective vaccine against predominant ILTV strains is highly desirable. Methods: The full-length glycoprotein B (gB) gene of ILTV with the two mutated synonymous sites of fowlpox virus (FPV) transcription termination signal sequence was cloned into the insertion vector p12LS, which was co-transfected with wild-type (wt) FPV into chicken embryo fibroblast (CEF) to develop a recombinant fowlpox virus-gB (rFPV-gB) candidate vaccine strain. Furthermore, its biological and immunological characteristics were evaluated. Results: The results indicated that gB gene was expressed correctly in the rFPV by indirect immunofluorescent assay and Western blot, and the rFPV-gB provided a 100% protection in immunized chickens against the challenge of predominant ILTV strains that were screened by pathogenicity assay when compared with the commercialized rFPV vaccine, which only provided 83.3%. Conclusion: rFPV-gB can be used as a potential vaccine against predominant ILTV strains.
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Affiliation(s)
- Sujuan Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.C.); (N.X.); (L.T.); (S.L.); (X.S.); (J.X.); (Y.D.); (T.Q.)
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou University, Yangzhou 225009, China
- Jiangsu Research Centre of Engineering and Technology for Prevention and Control of Poultry Disease, Yangzhou University, Yangzhou 225009, China
| | - Nuo Xu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.C.); (N.X.); (L.T.); (S.L.); (X.S.); (J.X.); (Y.D.); (T.Q.)
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou University, Yangzhou 225009, China
- Jiangsu Research Centre of Engineering and Technology for Prevention and Control of Poultry Disease, Yangzhou University, Yangzhou 225009, China
| | - Lei Ta
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.C.); (N.X.); (L.T.); (S.L.); (X.S.); (J.X.); (Y.D.); (T.Q.)
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou University, Yangzhou 225009, China
- Jiangsu Research Centre of Engineering and Technology for Prevention and Control of Poultry Disease, Yangzhou University, Yangzhou 225009, China
| | - Shi Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.C.); (N.X.); (L.T.); (S.L.); (X.S.); (J.X.); (Y.D.); (T.Q.)
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou University, Yangzhou 225009, China
- Jiangsu Research Centre of Engineering and Technology for Prevention and Control of Poultry Disease, Yangzhou University, Yangzhou 225009, China
| | - Xiang Su
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.C.); (N.X.); (L.T.); (S.L.); (X.S.); (J.X.); (Y.D.); (T.Q.)
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou University, Yangzhou 225009, China
- Jiangsu Research Centre of Engineering and Technology for Prevention and Control of Poultry Disease, Yangzhou University, Yangzhou 225009, China
| | - Jing Xue
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.C.); (N.X.); (L.T.); (S.L.); (X.S.); (J.X.); (Y.D.); (T.Q.)
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou University, Yangzhou 225009, China
- Jiangsu Research Centre of Engineering and Technology for Prevention and Control of Poultry Disease, Yangzhou University, Yangzhou 225009, China
| | - Yinping Du
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.C.); (N.X.); (L.T.); (S.L.); (X.S.); (J.X.); (Y.D.); (T.Q.)
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou University, Yangzhou 225009, China
- Jiangsu Research Centre of Engineering and Technology for Prevention and Control of Poultry Disease, Yangzhou University, Yangzhou 225009, China
| | - Tao Qin
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.C.); (N.X.); (L.T.); (S.L.); (X.S.); (J.X.); (Y.D.); (T.Q.)
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou University, Yangzhou 225009, China
- Jiangsu Research Centre of Engineering and Technology for Prevention and Control of Poultry Disease, Yangzhou University, Yangzhou 225009, China
| | - Daxin Peng
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (S.C.); (N.X.); (L.T.); (S.L.); (X.S.); (J.X.); (Y.D.); (T.Q.)
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou University, Yangzhou 225009, China
- Jiangsu Research Centre of Engineering and Technology for Prevention and Control of Poultry Disease, Yangzhou University, Yangzhou 225009, China
- Correspondence: ; Tel./Fax: +86-051487979386
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Zhao Y, Han Z, Zhang X, Zhang X, Sun J, Ma D, Liu S. Construction and immune protection evaluation of recombinant virus expressing Newcastle disease virus F protein by the largest intergenic region of fowlpox virus NX10. Virus Genes 2020; 56:734-748. [PMID: 33009986 DOI: 10.1007/s11262-020-01799-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 09/26/2020] [Indexed: 01/27/2023]
Abstract
Fowlpox virus (FPV) is used as a vaccine vector to prevent diseases in poultry and mammals. The insertion site is considered as one of the main factors influencing foreign gene expression. Therefore, the identification of insertion sites that can stably and efficiently express foreign genes is crucial for the construction of recombinant vaccines. In this study, we found that the insertion of foreign genes into ORF054 and the ORF161/ORF162 intergenic region of the FPV genome did not affect replication, and that the foreign genes inserted into the intergenic region were more efficiently expressed than when they were inserted into a gene. Based on these results, the recombinant virus rFPVNX10-NDV F-E was constructed and immune protection against virulent FPV and Newcastle disease virus (NDV) was evaluated. Tests for anti-FPV antibodies in the vaccinated chickens were positive within 14 days post-vaccination. After challenge with FPV102, no clinical signs of FP were observed in vaccinated chickens, as compared to that in the control group (unvaccinated), which showed 100% morbidity. Low levels of NDV-specific neutralizing antibodies were detected in vaccinated chickens before challenge. After challenge with NDV ck/CH/LHLJ/01/06, all control chickens died within 4 days post-challenge, whereas 5/15 vaccinated chickens died between 4 and 12 days post-challenge. Vaccination provided an immune protection rate of 66.7%, whereas the control group showed 100% mortality. These results indicate that the ORF161/ORF162 intergenic region of FPVNX10 can be used as a recombination site for foreign gene expression in vivo and in vitro.
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Affiliation(s)
- Yan Zhao
- College of Animal Science and Technology, Northeast Agricultural University, No. 600 Changjiang Road, Xiangfang District, Harbin, 150030, China.,Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, Xiangfang District, Harbin, 150069, China
| | - Zongxi Han
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, Xiangfang District, Harbin, 150069, China
| | - Xiaocai Zhang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, Xiangfang District, Harbin, 150069, China
| | - Xuemei Zhang
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, Xiangfang District, Harbin, 150069, China
| | - Junfeng Sun
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, Xiangfang District, Harbin, 150069, China
| | - Deying Ma
- College of Animal Science and Technology, Northeast Agricultural University, No. 600 Changjiang Road, Xiangfang District, Harbin, 150030, China.
| | - Shengwang Liu
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, Xiangfang District, Harbin, 150069, China.
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Du S, Jiang Y, Xu W, Bai J, Tian M, Wang M, Wang Y, Cao T, Song L, Jiang Y, Chen J, Fu T, Hao P, Li T, Wu S, Ren L, Jin N, Li C. Construction, expression and antiviral activity analysis of recombinant adenovirus expressing human IFITM3 in vitro. Int J Biol Macromol 2019; 131:925-932. [PMID: 30914370 PMCID: PMC7112391 DOI: 10.1016/j.ijbiomac.2019.03.161] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 03/22/2019] [Accepted: 03/22/2019] [Indexed: 01/07/2023]
Abstract
Interferon-inducible transmembrane protein 3 (IFITM3) inhibits the replication of multiple pathogenic viruses by blocking their entry. In this study, we constructed a shuttle plasmid, harboring human IFITM3. Thereafter, recombinant adenovirus rAd5-IFITM3 was obtained by co-transfection of the linearized viral backbone vector pAd5 and the shuttle plasmid. The results showed that human IFITM3 did not affect the assembly and morphogenesis of progeny adenovirus. Human IFITM3 can be expressed in both A549 and MDCK cells in a time dependent manner. Furthermore, cells infected with rAd5-IFITM3 at a multiplicity of infection (MOI) of 100 for 24 h were challenged with avian influenza virus (AIV) H5N1 at an MOI of 1 for 6, 12 and 24 h. Rates of H5N1 infection in rAd5-IFITM3 cells were significantly decreased at 24 h post-infection (hpi), in a time dependent manner, compared with that of wild type wtAd5-infected cells. The expressions of viral genes were significantly inhibited at transcriptional and translational levels at 6 and 12 hpi. These results suggest that IFITM3 can suppress H5N1 replication in the early stage of the infection, which may be used as a promise agent against H5N1 infection in vivo.
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Affiliation(s)
- Shouwen Du
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Institute, Academy of Military Medical Sciences, Changchun 130112, China; 2nd Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen 518020, China
| | - Yinyue Jiang
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Institute, Academy of Military Medical Sciences, Changchun 130112, China
| | - Wang Xu
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Institute, Academy of Military Medical Sciences, Changchun 130112, China
| | - Jieying Bai
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Institute, Academy of Military Medical Sciences, Changchun 130112, China
| | - Mingyao Tian
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Institute, Academy of Military Medical Sciences, Changchun 130112, China
| | - Maopeng Wang
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Institute, Academy of Military Medical Sciences, Changchun 130112, China
| | - Yuhang Wang
- 2nd Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen 518020, China
| | - Tingting Cao
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Institute, Academy of Military Medical Sciences, Changchun 130112, China
| | - Lina Song
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Institute, Academy of Military Medical Sciences, Changchun 130112, China
| | - Yuhang Jiang
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Institute, Academy of Military Medical Sciences, Changchun 130112, China
| | - Jing Chen
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Institute, Academy of Military Medical Sciences, Changchun 130112, China
| | - Tingting Fu
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Institute, Academy of Military Medical Sciences, Changchun 130112, China
| | - Penfeng Hao
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Institute, Academy of Military Medical Sciences, Changchun 130112, China
| | - Tiyuan Li
- 2nd Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen 518020, China
| | - Shipin Wu
- 2nd Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen 518020, China
| | - Linzhu Ren
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University, Changchun 130062, China.
| | - Ningyi Jin
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Institute, Academy of Military Medical Sciences, Changchun 130112, China.
| | - Chang Li
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Military Veterinary Institute, Academy of Military Medical Sciences, Changchun 130112, China.
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Zhu Y, Li Y, Bai B, Fang J, Zhang K, Yin X, Li S, Li W, Ma Y, Cui Y, Wang J, Liu X, Li X, Sun L, Jin N. Construction of an attenuated goatpox virus AV41 strain by deleting the TK gene and ORF8-18. Antiviral Res 2018; 157:111-119. [PMID: 30030019 DOI: 10.1016/j.antiviral.2018.07.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 07/09/2018] [Accepted: 07/12/2018] [Indexed: 11/28/2022]
Abstract
Goatpox virus (GTPV) is prevalent in goats and is associated with high mortality. This virus causes fever, skin nodules, lesions in the respiratory and lymph node enlargement. Considering the safety risks and side effects of vaccination with attenuated live GPTV vaccine strain AV41, an attenuated goatpox virus (GTPV-TK-ORF), was constructed by deleting non-essential gene fragments without affecting replication and related to the virulence and immunomodulatory functions of the goatpox virus AV41 strain (GTPV-AV41) using homologous recombination and the Cre (Cyclization Recombination Enzyme)/Loxp system. The results of both in vivo and in vitro experiments demonstrated that GTPV-TK-ORF was safer than wild type GTPV-AV41, possessed satisfactory immunogenicity, and could protect goats from a virulent GTPV-AV40 infection. Moreover, the IFN-γ, GTPV-specific antibody, and neutralizing antibody levels in the GTPV-TK-ORF-immunized group were significantly higher than that in the normal saline control group following immunization (P < 0.01). Thus, GTPV-TK-ORF may be used as a potential novel vaccine and viral vector with good safety and immunogenicity.
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Affiliation(s)
- Yilong Zhu
- Changchun University of Chinese Medicine, Changchun, 130117, China; Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, 130122, China
| | - Yiquan Li
- Changchun University of Chinese Medicine, Changchun, 130117, China; Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, 130122, China; Medical College, Yanbian University, Yanji, 133002, China
| | - Bing Bai
- Changchun University of Chinese Medicine, Changchun, 130117, China; Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, 130122, China
| | - Jinbo Fang
- Changchun University of Chinese Medicine, Changchun, 130117, China; Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, 130122, China
| | - Kelong Zhang
- Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, 130122, China
| | - Xunzhe Yin
- Changchun University of Chinese Medicine, Changchun, 130117, China; Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, 130122, China
| | - Shanzhi Li
- Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, 130122, China
| | - Wenjie Li
- Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, 130122, China
| | - Yizhen Ma
- Changchun University of Chinese Medicine, Changchun, 130117, China; Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, 130122, China
| | - Yingli Cui
- Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, 130122, China
| | - Jing Wang
- Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, 130122, China
| | - Xing Liu
- Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, 130122, China
| | - Xiao Li
- Changchun University of Chinese Medicine, Changchun, 130117, China; Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, 130122, China; Institute of Virology, Wenzhou University Town, Wenzhou, 325035, China.
| | - Lili Sun
- Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, 130122, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China; Department of Head and Neck Surgery, Tumor Hospital of Jilin Province, Changchun, 130012, China.
| | - Ningyi Jin
- Changchun University of Chinese Medicine, Changchun, 130117, China; Institute of Military Veterinary Medicine, Academy of Military Medical Science, Changchun, 130122, China; Institute of Virology, Wenzhou University Town, Wenzhou, 325035, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, China.
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Zhu Y, Du S, Zhang Y, Liu J, Guo Y, Liu C, Bai J, Wang M, Zhao F, Cao T, Xu W, Bai B, Zhang K, Ma Y, Li C, Jin N. SIV-Specific Antibodies are Elicited by a Recombinant Fowlpox Virus Co-expressing SIV Gag and envT. Indian J Microbiol 2018; 58:345-352. [PMID: 30013279 DOI: 10.1007/s12088-018-0728-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 04/20/2018] [Indexed: 10/17/2022] Open
Abstract
Given the failures of past HIV-1 vaccine clinical trials, potential HIV-1 vaccine candidates should be rigorously screened in preclinical models including simian immunodeficiency virus (SIV) primate models and small animal models. In this study, we tested the immunogenicity of a recombinant fowlpox virus (rFPV) expressing the SIV gag and SIV envT (rFPVsg-se) proteins in BALB/c mice, to establish a foundation for further development. rFPVsg-se was constructed through homologous recombination techniques and purified through plaque screening assays using enhanced green fluorescent protein as the reporter gene. The integration, transcription, and translation of the SIV genes were measured by PCR (genomic DNA), RT-PCR (RNA), Western-blot, respectively. The levels of SIV-specific antibodies were assessed by ELISA following a single immunization (n = 18/group) or a prime-boost strategy (n = 24/group) with rFPVsg-se and compared to FPV and PBS controls. Residual virus was measured in distant organs following immunization using PCR. SIV-specific IgG titers against gag and gp120 were detected following single vaccination and the prime-boost. As expected the titers were higher following the prime-boost approach. The levels of Gag- and gp120-specific antibodies were significantly higher than controls (p < 0.01) 14 days after the booster immunization. Residual rFPVSg-Se was detected in the muscle at the site of injection, but not in distant organs, from day 1-7 post immunization. In summary, rFPVsg-se induced high levels of SIV-specific antibodies suggesting it may be a viable candidate for further development.
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Affiliation(s)
- Yilong Zhu
- 1Changchun University of Chinese Medicine, Changchun, 130117 People's Republic of China.,3Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 People's Republic of China
| | - Shouwen Du
- 3Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 People's Republic of China
| | - Yang Zhang
- 4Department of Neurosurgery, First Hospital, Jilin University, Changchun, 130021 People's Republic of China
| | - Jingwei Liu
- 4Department of Neurosurgery, First Hospital, Jilin University, Changchun, 130021 People's Republic of China
| | - Yan Guo
- 1Changchun University of Chinese Medicine, Changchun, 130117 People's Republic of China
| | - Cunxia Liu
- 3Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 People's Republic of China
| | - Jieying Bai
- 3Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 People's Republic of China
| | - Maopeng Wang
- 3Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 People's Republic of China
| | - Fei Zhao
- 3Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 People's Republic of China
| | - Tingting Cao
- 3Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 People's Republic of China
| | - Wang Xu
- 3Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 People's Republic of China
| | - Bing Bai
- 1Changchun University of Chinese Medicine, Changchun, 130117 People's Republic of China.,3Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 People's Republic of China
| | - Kelong Zhang
- 3Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 People's Republic of China
| | - Yizhen Ma
- 1Changchun University of Chinese Medicine, Changchun, 130117 People's Republic of China
| | - Chang Li
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 People's Republic of China.,3Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 People's Republic of China
| | - Ningyi Jin
- 1Changchun University of Chinese Medicine, Changchun, 130117 People's Republic of China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 People's Republic of China.,3Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 People's Republic of China
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9
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Zhu Y, Guo Y, Du S, Liu C, Wang M, Ren D, Zhao F, Zhang Y, Sun W, Li Y, Cao T, Jiang Y, Xing B, Bai B, Li C, Jin N. Construction, Selection and Immunogenicity of Recombinant Fowlpox Candidate Vaccine Co-expressing HIV-1 gag and gp145. Indian J Microbiol 2017; 57:162-170. [PMID: 28611493 DOI: 10.1007/s12088-017-0639-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 01/23/2017] [Indexed: 11/26/2022] Open
Abstract
An HIV candidate vaccine for the Chinese population was designed by constructing a recombinant fowlpox virus expressing HIV-1 gag and HIV gp145 proteins via homologous recombination and plaque screening using enhanced green fluorescent protein (EGFP) as the reporter gene. EGFP in the recombinant was then knocked out with the Cre/Loxp system yielding rFPVHg-Hp, which was identified at the genomic, transcriptional and translational levels. The immunogenicity of rFPVHg-Hp was analyzed by measuring levels of HIV-specific antibodies and IFN-γ-secreting splenocytes by enzyme-linked immunosorbent assay and IFN enzyme-linked immune spot test in the BALB/c mouse model. Results showed that rFPV could not stimulate HIV-1 specific antibodies or IFN-γ-secreting cells by a single immunization. Meanwhile, in the prime-boost strategy, HIV-p24 antibodies (P < 0.01) and IFN-γ-secreting cells (P < 0.05) were induced strongly by the candidate vaccine after the boost immunization. Thus, both humoral and cellular immunity could be elicited by the candidate vaccine in a prime-boost immunization strategy. This study provides a foundation for future preclinical studies on the HIV rFPVHg-Hp candidate vaccine.
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Affiliation(s)
- Yilong Zhu
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 China
| | - Yan Guo
- Changchun University of Traditional Chinese Medicine, Changchun, 130117 China
| | - Shouwen Du
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 China
| | - Cunxia Liu
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 China
| | - Maopeng Wang
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 China
| | - Dayong Ren
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 China
| | - Fei Zhao
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 China
| | - Yanfang Zhang
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 China
| | - Wenchao Sun
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 China
| | - Yiquan Li
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 China
| | - Tingting Cao
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 China
| | - Yingyue Jiang
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 China
| | - Bin Xing
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 China
| | - Bing Bai
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 China
| | - Chang Li
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 China
| | - Ningyi Jin
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122 China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009 China
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