1
|
O’Dowd K, Isham IM, Vatandour S, Boulianne M, Dozois CM, Gagnon CA, Barjesteh N, Abdul-Careem MF. Host Immune Response Modulation in Avian Coronavirus Infection: Tracheal Transcriptome Profiling In Vitro and In Vivo. Viruses 2024; 16:605. [PMID: 38675946 PMCID: PMC11053446 DOI: 10.3390/v16040605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/05/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Infectious bronchitis virus (IBV) is a highly contagious Gammacoronavirus causing moderate to severe respiratory infection in chickens. Understanding the initial antiviral response in the respiratory mucosa is crucial for controlling viral spread. We aimed to characterize the impact of IBV Delmarva (DMV)/1639 and IBV Massachusetts (Mass) 41 at the primary site of infection, namely, in chicken tracheal epithelial cells (cTECs) in vitro and the trachea in vivo. We hypothesized that some elements of the induced antiviral responses are distinct in both infection models. We inoculated cTECs and infected young specific pathogen-free (SPF) chickens with IBV DMV/1639 or IBV Mass41, along with mock-inoculated controls, and studied the transcriptome using RNA-sequencing (RNA-seq) at 3 and 18 h post-infection (hpi) for cTECs and at 4 and 11 days post-infection (dpi) in the trachea. We showed that IBV DMV/1639 and IBV Mass41 replicate in cTECs in vitro and the trachea in vivo, inducing host mRNA expression profiles that are strain- and time-dependent. We demonstrated the different gene expression patterns between in vitro and in vivo tracheal IBV infection. Ultimately, characterizing host-pathogen interactions with various IBV strains reveals potential mechanisms for inducing and modulating the immune response during IBV infection in the chicken trachea.
Collapse
Affiliation(s)
- Kelsey O’Dowd
- Health Research Innovation Centre, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; (K.O.); (I.M.I.)
| | - Ishara M. Isham
- Health Research Innovation Centre, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; (K.O.); (I.M.I.)
| | - Safieh Vatandour
- Department of Animal and Poultry Science, Islamic Azad University, Qaemshahr Branch, Qaem Shahr 4765161964, Iran;
| | - Martine Boulianne
- Swine and Poultry Infectious Diseases Research Centre–Fonds de Recherche du Québec (CRIPA-FRQ), Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, Canada; (M.B.); (C.M.D.); (C.A.G.); (N.B.)
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, Canada
| | - Charles M. Dozois
- Swine and Poultry Infectious Diseases Research Centre–Fonds de Recherche du Québec (CRIPA-FRQ), Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, Canada; (M.B.); (C.M.D.); (C.A.G.); (N.B.)
- Institut National de Recherche Scientifique-Centre Armand-Frappier Santé Biotechnologie, Laval, QC H7V 1B7, Canada
| | - Carl A. Gagnon
- Swine and Poultry Infectious Diseases Research Centre–Fonds de Recherche du Québec (CRIPA-FRQ), Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, Canada; (M.B.); (C.M.D.); (C.A.G.); (N.B.)
- Molecular Diagnostic and Virology Laboratories, Centre de Diagnostic Vétérinaire de l’Université de Montréal (CDVUM), Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, Canada
| | - Neda Barjesteh
- Swine and Poultry Infectious Diseases Research Centre–Fonds de Recherche du Québec (CRIPA-FRQ), Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, Canada; (M.B.); (C.M.D.); (C.A.G.); (N.B.)
| | - Mohamed Faizal Abdul-Careem
- Health Research Innovation Centre, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; (K.O.); (I.M.I.)
| |
Collapse
|
2
|
Jude R, da Silva AP, Slay AM, Luciano RL, Jordan B, Gallardo RA. Mitigation of False Layer Syndrome Through Maternal Antibodies Against Infectious Bronchitis Virus. Avian Dis 2024; 68:10-17. [PMID: 38687102 DOI: 10.1637/aviandiseases-d-23-00039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 11/15/2023] [Indexed: 05/02/2024]
Abstract
The relationship between passive immunity and the development of false layer syndrome (FLS) and its associated lesions was investigated in this study by comparing the long-term reproductive effects of an infectious bronchitis virus (IBV) DMV/1639 wild-type strain and the GA08 vaccine in birds with and without maternal antibodies. There was a clear protective effect provided by maternal antibodies against both the early vaccination and challenge. It was also observed that vaccination at an early age, in the absence of maternal antibodies, can induce reproductive issues, such as reduced egg production and FLS-associated lesions (e.g., cystic oviduct and egg yolk coelomitis). This might indicate that maternal antibodies and the timing of IBV infection are more important in the generation of FLS than the IBV strain type.
Collapse
Affiliation(s)
- Rachel Jude
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616
| | - Ana P da Silva
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616
| | - Adrea Mueller Slay
- Department of Population Health, Poultry Diagnostic and Research Center, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602
| | - Renato Luis Luciano
- Instituto Biologico, Centro Avançado de Pesquisa e Desenvolvimento em Sanidade Avicola, Descalvado, Sao Paulo, 13690-000, Brazil
| | - Brian Jordan
- Department of Population Health, Poultry Diagnostic and Research Center, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602
| | - Rodrigo A Gallardo
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616,
| |
Collapse
|
3
|
Ardicli O, Carli KT, Satitsuksanoa P, Dreher A, Cusini A, Hutter S, Mirer D, Rückert B, Jonsdottir H, Weber B, Cervia C, Akdis M, Boyman O, Eggel A, Brüggen M, Akdis C, van de Veen W. Exposure to avian coronavirus vaccines is associated with increased levels of SARS-CoV-2-cross-reactive antibodies. Allergy 2022; 77:3648-3662. [PMID: 35869837 PMCID: PMC9467642 DOI: 10.1111/all.15441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 07/01/2022] [Accepted: 07/09/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND Although avian coronavirus infectious bronchitis virus (IBV) and SARS-CoV-2 belong to different genera of the Coronaviridae family, exposure to IBV may result in the development of cross-reactive antibodies to SARS-CoV-2 due to homologous epitopes. We aimed to investigate whether antibody responses to IBV cross-react with SARS-CoV-2 in poultry farm personnel who are occupationally exposed to aerosolized IBV vaccines. METHODS We analyzed sera from poultry farm personnel, COVID-19 patients, and pre-pandemic controls. IgG levels against the SARS-CoV-2 antigens S1, RBD, S2, and N and peptides corresponding to the SARS-CoV-2 ORF3a, N, and S proteins as well as whole virus antigens of the four major S1-genotypes 4/91, IS/1494/06, M41, and D274 of IBV were investigated by in-house ELISAs. Moreover, live-virus neutralization test (VNT) was performed. RESULTS A subgroup of poultry farm personnel showed elevated levels of specific IgG for all tested SARS-CoV-2 antigens compared with pre-pandemic controls. Moreover, poultry farm personnel, COVID-19 patients, and pre-pandemic controls showed specific IgG antibodies against IBV strains. These antibody titers were higher in long-term vaccine implementers. We observed a strong correlation between IBV-specific IgG and SARS-CoV-2 S1-, RBD-, S2-, and N-specific IgG in poultry farm personnel compared with pre-pandemic controls and COVID-19 patients. However, no neutralization was observed for these cross-reactive antibodies from poultry farm personnel using the VNT. CONCLUSION We report here for the first time the detection of cross-reactive IgG antibodies against SARS-CoV-2 antigens in humans exposed to IBV vaccines. These findings may be useful for further studies on the adaptive immunity against COVID-19.
Collapse
Affiliation(s)
- Ozge Ardicli
- Swiss Institute of Allergy and Asthma Research (SIAF)University of ZurichDavosSwitzerland
- Department of Microbiology, Faculty of Veterinary MedicineBursa Uludag UniversityBursaTurkey
| | - K. Tayfun Carli
- Department of Microbiology, Faculty of Veterinary MedicineBursa Uludag UniversityBursaTurkey
| | | | - Anita Dreher
- Christine Kühne‐Center for Allergy Research and Education (CK‐CARE)DavosSwitzerland
| | - Alexia Cusini
- Division of Infectious DiseasesCantonal Hospital of GrisonsChurSwitzerland
| | - Sandra Hutter
- Central LaboratoryCantonal Hospital of GrisonsChurSwitzerland
| | - David Mirer
- Swiss Institute of Allergy and Asthma Research (SIAF)University of ZurichDavosSwitzerland
| | - Beate Rückert
- Swiss Institute of Allergy and Asthma Research (SIAF)University of ZurichDavosSwitzerland
| | - Hulda R. Jonsdottir
- Spiez Laboratory, Federal Office for Civil ProtectionSpiezSwitzerland
- Department of Rheumatology, Immunology, and AllergologyInselspital University HospitalBernSwitzerland
- Department of BioMedical ResearchUniversity of BernBernSwitzerland
| | - Benjamin Weber
- Spiez Laboratory, Federal Office for Civil ProtectionSpiezSwitzerland
| | - Carlo Cervia
- Department of ImmunologyUniversity Hospital ZurichZurichSwitzerland
| | - Mubeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF)University of ZurichDavosSwitzerland
| | - Onur Boyman
- Department of ImmunologyUniversity Hospital ZurichZurichSwitzerland
- Faculty of MedicineUniversity of ZurichZurichSwitzerland
| | - Alexander Eggel
- Department of Rheumatology, Immunology, and AllergologyInselspital University HospitalBernSwitzerland
- Department of BioMedical ResearchUniversity of BernBernSwitzerland
| | - Marie‐Charlotte Brüggen
- Christine Kühne‐Center for Allergy Research and Education (CK‐CARE)DavosSwitzerland
- Faculty of MedicineUniversity of ZurichZurichSwitzerland
- Department of DermatologyUniversity Hospital ZurichZurichSwitzerland
| | - Cezmi A. Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF)University of ZurichDavosSwitzerland
- Christine Kühne‐Center for Allergy Research and Education (CK‐CARE)DavosSwitzerland
| | - Willem van de Veen
- Swiss Institute of Allergy and Asthma Research (SIAF)University of ZurichDavosSwitzerland
| |
Collapse
|
4
|
Zhang Y, Xu Z, Cao Y. Host Antiviral Responses against Avian Infectious Bronchitis Virus (IBV): Focus on Innate Immunity. Viruses 2021; 13:1698. [PMID: 34578280 PMCID: PMC8473314 DOI: 10.3390/v13091698] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 08/12/2021] [Indexed: 12/26/2022] Open
Abstract
Avian infectious bronchitis virus (IBV) is an important gammacoronavirus. The virus is highly contagious, can infect chickens of all ages, and causes considerable economic losses in the poultry industry worldwide. In the last few decades, numerous studies have been published regarding pathogenicity, vaccination, and host immunity-virus interaction. In particular, innate immunity serves as the first line of defense against invasive pathogens and plays an important role in the pathogenetic process of IBV infection. This review focuses on fundamental aspects of host innate immune responses after IBV infection, including identification of conserved viral structures and different components of host with antiviral activity, which could provide useful information for novel vaccine development, vaccination strategies, and intervention programs.
Collapse
Affiliation(s)
| | | | - Yongchang Cao
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, China; (Y.Z.); (Z.X.)
| |
Collapse
|
5
|
Tomar P, Joshi VG, Mahajan NK, Jindal N. Multiple antigenic peptide-based flow through dot-blot assay for simultaneous antibody detection of infectious bronchitis virus and Newcastle disease virus. Biologicals 2021; 73:24-30. [PMID: 34389244 DOI: 10.1016/j.biologicals.2021.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 06/26/2021] [Accepted: 07/30/2021] [Indexed: 11/19/2022] Open
Abstract
The present study describes the development of a novel affordable and rapid visual dot-blot assay using synthetic multiple antigenic peptides (MAP) for simultaneous detection of antibodies to infectious bronchitis virus (IBV) and Newcastle disease virus (NDV). Antibody detection efficiencies of MAP peptides namely, NP1 MAP (Nucleoprotein IBV) and HN MAP (Haemagglutinin-neuraminidase NDV) were studied in solid-phase indirect peptide ELISA. In comparison with the commercial kit, the NP1 MAP showed 89.20% diagnostic sensitivity (DSn) and 85.90% diagnostic specificity (DSp) at 19.45% ROC cut-off. Similarly, HN MAP was evaluated and showed 89.70% DSn and 92.90% DSp at 19.90 % ROC cut-off. The peptides after evaluating their ELISA performance were further used to device a flow-through dot-blot assay (FT-DBA) for simultaneous detection of IBV and NDV antibodies. The kappa value for IBV by FT-DBA in comparison to commercial ELISA was 0.64 whereas for NDV, FT-DBA gave a kappa value of 0.68 in comparison to commercial ELISA indicating substantial agreement between the assays. In essence, the divergent MAP based diagnostic design could provide an alternative for antibody detection of IBV and NDV. Further, the FT-DBA approach could be used for low cost, rapid and pen-side detection of IBV and NDV antibodies simultaneously.
Collapse
Affiliation(s)
- Piyush Tomar
- Department of Veterinary Public Health and Epidemiology, College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| | - Vinay G Joshi
- Department of Animal Biotechnology, College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| | - N K Mahajan
- Department of Veterinary Public Health and Epidemiology, College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
| | - Naresh Jindal
- Department of Veterinary Public Health and Epidemiology, College of Veterinary Sciences, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India.
| |
Collapse
|
6
|
van den Biggelaar RHGA, van der Maas L, Meiring HD, Pennings JLA, van Eden W, Rutten VPMG, Jansen CA. Proteomic analysis of chicken bone marrow-derived dendritic cells in response to an inactivated IBV + NDV poultry vaccine. Sci Rep 2021; 11:12666. [PMID: 34135356 PMCID: PMC8209092 DOI: 10.1038/s41598-021-89810-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 04/30/2021] [Indexed: 02/05/2023] Open
Abstract
Inactivated poultry vaccines are subject to routine potency testing for batch release, requiring large numbers of animals. The replacement of in vivo tests for cell-based alternatives can be facilitated by the identification of biomarkers for vaccine-induced immune responses. In this study, chicken bone marrow-derived dendritic cells were stimulated with an inactivated vaccine for infectious bronchitis virus and Newcastle disease virus, as well as inactivated infectious bronchitis virus only, and lipopolysaccharides as positive control, or left unstimulated for comparison with the stimulated samples. Next, the cells were lysed and subjected to proteomic analysis. Stimulation with the vaccine resulted in 66 differentially expressed proteins associated with mRNA translation, immune responses, lipid metabolism and the proteasome. For the eight most significantly upregulated proteins, mRNA expression levels were assessed. Markers that showed increased expression at both mRNA and protein levels included PLIN2 and PSMB1. Stimulation with infectious bronchitis virus only resulted in 25 differentially expressed proteins, which were mostly proteins containing Src homology 2 domains. Stimulation with lipopolysaccharides resulted in 118 differentially expressed proteins associated with dendritic cell maturation and antimicrobial activity. This study provides leads to a better understanding of the activation of dendritic cells by an inactivated poultry vaccine, and identified PLIN2 and PSMB1 as potential biomarkers for cell-based potency testing.
Collapse
Affiliation(s)
- Robin H G A van den Biggelaar
- Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | | | - Hugo D Meiring
- Intravacc (Institute for Translational Vaccinology), Bilthoven, The Netherlands
| | - Jeroen L A Pennings
- Centre for Health Protection, National Institute for Public Health and the Environment (RIVM), Utrecht, The Netherlands
| | - Willem van Eden
- Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Victor P M G Rutten
- Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
- Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa
| | - Christine A Jansen
- Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
- Cell Biology and Immunology Group, Department of Animal Sciences, Wageningen University and Research, Wageningen, The Netherlands.
| |
Collapse
|
7
|
Liu Y, Liang QZ, Lu W, Yang YL, Chen R, Huang YW, Wang B. A Comparative Analysis of Coronavirus Nucleocapsid (N) Proteins Reveals the SADS-CoV N Protein Antagonizes IFN-β Production by Inducing Ubiquitination of RIG-I. Front Immunol 2021; 12:688758. [PMID: 34220846 PMCID: PMC8242249 DOI: 10.3389/fimmu.2021.688758] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/27/2021] [Indexed: 12/23/2022] Open
Abstract
Coronaviruses (CoVs) are a known global threat, and most recently the ongoing COVID-19 pandemic has claimed more than 2 million human lives. Delays and interference with IFN responses are closely associated with the severity of disease caused by CoV infection. As the most abundant viral protein in infected cells just after the entry step, the CoV nucleocapsid (N) protein likely plays a key role in IFN interruption. We have conducted a comprehensive comparative analysis and report herein that the N proteins of representative human and animal CoVs from four different genera [swine acute diarrhea syndrome CoV (SADS-CoV), porcine epidemic diarrhea virus (PEDV), severe acute respiratory syndrome CoV (SARS-CoV), SARS-CoV-2, Middle East respiratory syndrome CoV (MERS-CoV), infectious bronchitis virus (IBV) and porcine deltacoronavirus (PDCoV)] suppress IFN responses by multiple strategies. In particular, we found that the N protein of SADS-CoV interacted with RIG-I independent of its RNA binding activity, mediating K27-, K48- and K63-linked ubiquitination of RIG-I and its subsequent proteasome-dependent degradation, thus inhibiting the host IFN response. These data provide insight into the interaction between CoVs and host, and offer new clues for the development of therapies against these important viruses.
Collapse
Affiliation(s)
- Yan Liu
- Department of Veterinary Medicine, Institute of Preventive Veterinary Medicine and Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou, China
| | - Qi-Zhang Liang
- Department of Veterinary Medicine, Institute of Preventive Veterinary Medicine and Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou, China
| | - Wan Lu
- Department of Veterinary Medicine, Institute of Preventive Veterinary Medicine and Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou, China
| | - Yong-Le Yang
- Department of Veterinary Medicine, Institute of Preventive Veterinary Medicine and Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou, China
| | - Ruiai Chen
- Zhaoqing Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Zhaoqing, China
| | - Yao-Wei Huang
- Department of Veterinary Medicine, Institute of Preventive Veterinary Medicine and Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou, China
- Zhaoqing Branch Center of Guangdong Laboratory for Lingnan Modern Agricultural Science and Technology, Zhaoqing, China
| | - Bin Wang
- Department of Veterinary Medicine, Institute of Preventive Veterinary Medicine and Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou, China
| |
Collapse
|
8
|
Chen L, Xiang B, Hong Y, Li Q, Du H, Lin Q, Liao M, Ren T, Xu C. Phylogenetic analysis of infectious bronchitis virus circulating in southern China in 2016-2017 and evaluation of an attenuated strain as a vaccine candidate. Arch Virol 2021; 166:73-81. [PMID: 33067648 PMCID: PMC7566581 DOI: 10.1007/s00705-020-04851-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 09/05/2020] [Indexed: 12/13/2022]
Abstract
Avian infectious bronchitis (IB) is a highly contagious viral respiratory disease, caused by infectious bronchitis virus (IBV), that poses an important economic threat to the poultry industry. In recent years, genotypes GI-7, GI-13, and GI-19 have been the most prevalent IBV strains in China. However, in this study, we found that most IBV strains from southern China in 2016-2017 belonged to genotype GVI-1. This genotype, for which there is no vaccine, has been reported sporadically in the region. The GDTS13 strain, which caused severe IB outbreaks on the farms where it was isolated, was evaluated as a candidate vaccine strain. GDTS13 was serially passaged in specific-pathogen-free embryonated chicken eggs for 100 generations to produce GDTS13-F100. Safety testing indicated that GDTS13-F100 had no pathogenic effect on chickens. Additionally, GDTS13-F100 showed an excellent protective effect against GDTS13, with no clinical signs or virus shedding observed in immunized chickens challenged with the parent strain. These findings indicate that GVI-1 has become the most prevalent IBV genotype in southern China and that GDTS13-F100 may serve as an attenuated vaccine to protect against infection with this genotype.
Collapse
Affiliation(s)
- Libin Chen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Key Laboratory of Animal Vaccine Development of Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, 510642, People's Republic of China
| | - Bin Xiang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Key Laboratory of Animal Vaccine Development of Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, 510642, People's Republic of China
| | - Yanfen Hong
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Key Laboratory of Animal Vaccine Development of Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, 510642, People's Republic of China
| | - Qian Li
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Key Laboratory of Animal Vaccine Development of Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, 510642, People's Republic of China
| | - Haoyun Du
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Key Laboratory of Animal Vaccine Development of Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, 510642, People's Republic of China
| | - Qiuyan Lin
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Key Laboratory of Animal Vaccine Development of Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, 510642, People's Republic of China
| | - Ming Liao
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Key Laboratory of Animal Vaccine Development of Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, 510642, People's Republic of China
| | - Tao Ren
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Key Laboratory of Animal Vaccine Development of Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, 510642, People's Republic of China.
| | - Chenggang Xu
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, Key Laboratory of Animal Vaccine Development of Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, 510642, People's Republic of China.
| |
Collapse
|
9
|
Abstract
The outbreak of a novel coronavirus namely SARS-CoV-2, which first emerged from Wuhan, China, has wreaked havoc not only in China but the whole world that now has been engulfed in its wrath. In a short lapse of time, this virus was successful in spreading at a blistering pace throughout the globe, hence raising the flag of pandemic status. The mounting number of deaths with each elapsing day has summoned researchers from all around the world to play their part in driving this SARS-CoV-2 pandemic to an end. As of now, multiple research teams are immersed in either scrutinizing various antiviral drugs for their efficacy or developing different types of vaccines that will be capable of providing long-term immunity against this deadly virus. The mini-review sheds light on the possible approaches that can be undertaken to curb the COVID-19 spread. Possible strategies comprise viral vector-based, nucleic acid-based, protein-based, inactivated and weakened virus vaccines; COVID-19 vaccine being developed by deploying Hyleukin-7 technology; plant-based chimeric protein and subunit vaccines; humanized nano-bodies and human antibodies; intravenous immunoglobulin (IVIG) infusion therapy; inhibitors for ACE-2, Angiotensin 1 receptor (AT1R), complement system, viral proteins, host cell protease and endocytosis; shield immunity; IL-6R, NKG2A and hACE2-SARS-CoV-2-RBD interaction blocking monoclonal antibodies; SARS-CoV RdRp-based drugs, traditional Chinese medicine, repositioned and anti-viral drugs. These vaccines and drugs are currently being screened in the clinical trials as several of them have manifested positive results, hence increasing the probability of becoming one of the potential treatments for this disease.
Collapse
Affiliation(s)
- Zainab Sarwar
- Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Tahir Ahmad
- Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, Pakistan.
| | - Salik Kakar
- Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| |
Collapse
|
10
|
Ismail MI, Tan SW, Hair-Bejo M, Omar AR. Evaluation of the antigen relatedness and efficacy of a single vaccination with different infectious bronchitis virus strains against a challenge with Malaysian variant and QX-like IBV strains. J Vet Sci 2020; 21:e76. [PMID: 33263227 PMCID: PMC7710467 DOI: 10.4142/jvs.2020.21.e76] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/29/2020] [Accepted: 07/21/2020] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND The predominant infectious bronchitis virus (IBV) strains detected in chickens in Malaysia are the Malaysian variant (MV) and QX-like, which are associated with respiratory distress, nephropathy, and high mortality. On the other hand, the antigenic relatedness and efficacy of IBV vaccines against these 2 field IBV strains are not well characterized. OBJECTIVES This study aimed to determine the antigen relatedness and efficacy of different IB vaccine strains against a challenge with MV and QX-like strains. METHODS The antigen relatedness and the ability of different IB vaccine strains in conferring protection against MV and QX-like were assessed based on the clinical signs, macroscopic lesions, and ciliary activity. RESULTS The MV strain IBS037A/2014 showed minor antigenic subtype differences with the vaccine virus Mass H120 and 4/91 strains but showed major antigenic subtype differences with the K2 strain. The Malaysian QX-like strain IBS130/2015 showed major antigenic subtype differences with the MV strain IBS037A/2014 and the vaccine strains except for K2. Chickens vaccinated once with Mass (H120) or with non-Mass (4/91 and K2) developed antibody responses with the highest antibody titer detected in the groups vaccinated with H120 and 4/91. The mean ciliary activities of the vaccinated chickens were between 56 to 59% and 48 to 52% in chickens challenged with IBS037A/2014 and IBS130/2015, respectively. The vaccinated and challenged birds showed mild to severe lesions in the lungs and kidneys. CONCLUSIONS Despite the minor antigenic subtype differences, a single inoculation with Mass or non-Mass vaccines could not protect against the MV IBS037A/2014 and QX-like IBS130/2015.
Collapse
Affiliation(s)
- Mohd Iswadi Ismail
- Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Department of Veterinary Services, Veterinary Research Institute, 31400 Ipoh, Perak, Malaysia
| | - Sheau Wei Tan
- Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Mohd Hair-Bejo
- Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Abdul Rahman Omar
- Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
| |
Collapse
|
11
|
Keep S, Stevenson-Leggett P, Steyn A, Oade MS, Webb I, Stuart J, Vervelde L, Britton P, Maier HJ, Bickerton E. Temperature Sensitivity: A Potential Method for the Generation of Vaccines against the Avian Coronavirus Infectious Bronchitis Virus. Viruses 2020; 12:E754. [PMID: 32674326 PMCID: PMC7412246 DOI: 10.3390/v12070754] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/09/2020] [Accepted: 07/13/2020] [Indexed: 12/23/2022] Open
Abstract
The Gammacoronavirus infectious bronchitis virus (IBV) is a highly contagious economically important respiratory pathogen of domestic fowl. Reverse genetics allows for the molecular study of pathogenic determinants to enable rational vaccine design. The recombinant IBV (rIBV) Beau-R, a molecular clone of the apathogenic Beaudette strain, has previously been investigated as a vaccine platform. To determine tissues in which Beau-R could effectively deliver antigenic genes, an in vivo study in chickens, the natural host, was used to compare the pattern of viral dissemination of Beau-R to the pathogenic strain M41-CK. Replication of Beau-R was found to be restricted to soft tissue within the beak, whereas M41-CK was detected in beak tissue, trachea and eyelid up to seven days post infection. In vitro assays further identified that, unlike M41-CK, Beau-R could not replicate at 41 °C, the core body temperature of a chicken, but is able to replicate a 37 °C, a temperature relatable to the very upper respiratory tract. Using a panel of rIBVs with defined mutations in the structural and accessory genes, viral replication at permissive and non-permissive temperatures was investigated, identifying that the Beau-R replicase gene was a determinant of temperature sensitivity and that sub-genomic mRNA synthesis had been affected. The identification of temperature sensitive allelic lesions within the Beau-R replicase gene opens up the possibility of using this method of attenuation in other IBV strains for future vaccine development as well as a method to investigate the functions of the IBV replicase proteins.
Collapse
Affiliation(s)
- Sarah Keep
- The Pirbright Institute, Pirbright, Surrey GU24 0NF, UK; (S.K.); (P.S.-L.); (A.S.); (M.S.O.); (I.W.); (J.S.); (P.B.); (H.J.M.)
| | - Phoebe Stevenson-Leggett
- The Pirbright Institute, Pirbright, Surrey GU24 0NF, UK; (S.K.); (P.S.-L.); (A.S.); (M.S.O.); (I.W.); (J.S.); (P.B.); (H.J.M.)
| | - Angela Steyn
- The Pirbright Institute, Pirbright, Surrey GU24 0NF, UK; (S.K.); (P.S.-L.); (A.S.); (M.S.O.); (I.W.); (J.S.); (P.B.); (H.J.M.)
| | - Michael S. Oade
- The Pirbright Institute, Pirbright, Surrey GU24 0NF, UK; (S.K.); (P.S.-L.); (A.S.); (M.S.O.); (I.W.); (J.S.); (P.B.); (H.J.M.)
| | - Isobel Webb
- The Pirbright Institute, Pirbright, Surrey GU24 0NF, UK; (S.K.); (P.S.-L.); (A.S.); (M.S.O.); (I.W.); (J.S.); (P.B.); (H.J.M.)
| | - Jamie Stuart
- The Pirbright Institute, Pirbright, Surrey GU24 0NF, UK; (S.K.); (P.S.-L.); (A.S.); (M.S.O.); (I.W.); (J.S.); (P.B.); (H.J.M.)
| | - Lonneke Vervelde
- Division of Infection and Immunity, The Roslin Institute and Royal (Dick), School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK;
| | - Paul Britton
- The Pirbright Institute, Pirbright, Surrey GU24 0NF, UK; (S.K.); (P.S.-L.); (A.S.); (M.S.O.); (I.W.); (J.S.); (P.B.); (H.J.M.)
| | - Helena J. Maier
- The Pirbright Institute, Pirbright, Surrey GU24 0NF, UK; (S.K.); (P.S.-L.); (A.S.); (M.S.O.); (I.W.); (J.S.); (P.B.); (H.J.M.)
| | - Erica Bickerton
- The Pirbright Institute, Pirbright, Surrey GU24 0NF, UK; (S.K.); (P.S.-L.); (A.S.); (M.S.O.); (I.W.); (J.S.); (P.B.); (H.J.M.)
| |
Collapse
|
12
|
Bouwman KM, Habraeken N, Laconi A, Berends AJ, Groenewoud L, Alders M, Kemp V, Verheije MH. N-glycosylation of infectious bronchitis virus M41 spike determines receptor specificity. J Gen Virol 2020; 101:599-608. [PMID: 32213247 PMCID: PMC7414442 DOI: 10.1099/jgv.0.001408] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 02/21/2020] [Indexed: 01/06/2023] Open
Abstract
Infection of chicken coronavirus infectious bronchitis virus (IBV) is initiated by binding of the viral heavily N-glycosylated attachment protein spike to the alpha-2,3-linked sialic acid receptor Neu5Ac. Previously, we have shown that N-glycosylation of recombinantly expressed receptor binding domain (RBD) of the spike of IBV-M41 is of critical importance for binding to chicken trachea tissue. Here we investigated the role of N-glycosylation of the RBD on receptor specificity and virus replication in the context of the virus particle. Using our reverse genetics system we were able to generate recombinant IBVs for nine-out-of-ten individual N-glycosylation mutants. In vitro growth kinetics of these viruses were comparable to the virus containing the wild-type M41-S1. Furthermore, Neu5Ac binding by the recombinant viruses containing single N-glycosylation site knock-out mutations matched the Neu5Ac binding observed with the recombinant RBDs. Five N-glycosylation mutants lost the ability to bind Neu5Ac and gained binding to a different, yet unknown, sialylated glycan receptor on host cells. These results demonstrate that N-glycosylation of IBV is a determinant for receptor specificity.
Collapse
Affiliation(s)
- K. M. Bouwman
- Division of Pathology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - N. Habraeken
- Division of Pathology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - A. Laconi
- Division of Pathology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
- Present address: Department of Comparative Biomedicine and Food Science, University of Padua, Legnaro (PD), Italy
| | - A. J. Berends
- Division of Pathology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - L. Groenewoud
- Division of Pathology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - M. Alders
- Division of Pathology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - V. Kemp
- Division of Pathology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - M. H. Verheije
- Division of Pathology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| |
Collapse
|
13
|
Ren G, Liu F, Huang M, Li L, Shang H, Liang M, Luo Q, Chen R. Pathogenicity of a QX-like avian infectious bronchitis virus isolated in China. Poult Sci 2020; 99:111-118. [PMID: 32416792 PMCID: PMC7111634 DOI: 10.3382/ps/pez568] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 09/16/2019] [Indexed: 01/06/2023] Open
Abstract
Avian infectious bronchitis is a serious and highly contagious disease caused by infectious bronchitis virus (IBV). We isolated a highly virulent IBV strain (CK/CH/JS/TAHY) from kidneys of diseased chickens. Phylogenetic analysis based on the S1 gene revealed that CK/CH/JS/TAHY clustered with the QX-like type. The S1 gene has 1,620 nucleotides and encoded a polypeptide of 540 amino acids with typical coronavirus cleavage recognition sites of HRRR. About 1-day-old specific pathogen-free White Leghorn chickens inoculated with CK/CH/JS/TAHY at 105.5 EID50 exhibited clinical signs including coughing, sneezing, nasal discharge, and tracheal vocalization accompanied by depression with 84% mortality and 100% morbidity. The kidneys of dead birds were swollen and pale and exhibited severe urate deposition. Histopathological examination revealed kidney hemorrhages, multifocal necrosis of the renal tubules and trachea with cilia loss, sloughing of epithelial cells, and edema of the lamina propria. IBV-specific antibodies appeared at 10 D post-infection. Chickens vaccinated with a CK/CH/JS/TAHY oil-emulsion vaccine showed 26.7% morbidity and 3% mortality indicating a protective effect. In conclusion, the IBV strain is a virulent avian IBV and that exhibited severe pathogenicity in chickens and is a vaccine candidate to prevent infection by Chinese QX-like nephropathogenic IBV strains.
Collapse
Affiliation(s)
- Guangcai Ren
- Key Laboratory of Biotechnology and Drug Manufacture for Animal Epidemic Prevention, Ministry of Agriculture, Zhaoqing 526238, China; Zhaoqing Institute of Biotechnology Co., Ltd, Zhaoqing 526238, China
| | - Fan Liu
- College of Veterinary Medicine, South China Agriculture University, Guangzhou 510642, China
| | - Miaorong Huang
- Key Laboratory of Biotechnology and Drug Manufacture for Animal Epidemic Prevention, Ministry of Agriculture, Zhaoqing 526238, China; Zhaoqing Institute of Biotechnology Co., Ltd, Zhaoqing 526238, China
| | - Lin Li
- Key Laboratory of Biotechnology and Drug Manufacture for Animal Epidemic Prevention, Ministry of Agriculture, Zhaoqing 526238, China
| | - Huiqin Shang
- Key Laboratory of Biotechnology and Drug Manufacture for Animal Epidemic Prevention, Ministry of Agriculture, Zhaoqing 526238, China
| | - Meilan Liang
- Key Laboratory of Biotechnology and Drug Manufacture for Animal Epidemic Prevention, Ministry of Agriculture, Zhaoqing 526238, China
| | - Qiong Luo
- Key Laboratory of Biotechnology and Drug Manufacture for Animal Epidemic Prevention, Ministry of Agriculture, Zhaoqing 526238, China; Zhaoqing Institute of Biotechnology Co., Ltd, Zhaoqing 526238, China
| | - Ruiai Chen
- Key Laboratory of Biotechnology and Drug Manufacture for Animal Epidemic Prevention, Ministry of Agriculture, Zhaoqing 526238, China; Zhaoqing Institute of Biotechnology Co., Ltd, Zhaoqing 526238, China; College of Veterinary Medicine, South China Agriculture University, Guangzhou 510642, China.
| |
Collapse
|
14
|
Franzo G, Legnardi M, Tucciarone CM, Drigo M, Martini M, Cecchinato M. Evolution of infectious bronchitis virus in the field after homologous vaccination introduction. Vet Res 2019; 50:92. [PMID: 31706335 PMCID: PMC6842459 DOI: 10.1186/s13567-019-0713-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 09/25/2019] [Indexed: 11/10/2022] Open
Abstract
Despite the fact that vaccine resistance has been typically considered a rare phenomenon, some episodes of vaccine failure have been reported with increasing frequency in intensively-raised livestock. Infectious bronchitis virus (IBV) is a widespread avian coronavirus, whose control relies mainly on extensive vaccine administration. Unfortunately, the continuous emergence of new vaccine-immunity escaping variants prompts the development of new vaccines. In the present work, a molecular epidemiology study was performed to evaluate the potential role of homologous vaccination in driving IBV evolution. This was undertaken by assessing IBV viral RNA sequences from the ORF encoding the S1 portion of viral surface glycoprotein (S) before and after the introduction of a new live vaccine on broiler farms in northern-Italy. The results of several biostatistics analyses consistently demonstrate the presence of a higher pressure in the post-vaccination period. Natural selection was detected essentially on sites located on the protein surface, within or nearby domains involved in viral attachment or related functions. This evidence strongly supports the action of vaccine-induced immunity in conditioning viral evolution, potentially leading to the emergence of new vaccine-escape variants. The great plasticity of rapidly-evolving RNA-viruses in response to human intervention, which extends beyond the poultry industry, is demonstrated, claiming further attention due to their relevance for animal and especially human health.
Collapse
Affiliation(s)
- Giovanni Franzo
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell’Università 16, 35020 Legnaro, PD Italy
| | - Matteo Legnardi
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell’Università 16, 35020 Legnaro, PD Italy
| | - Claudia Maria Tucciarone
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell’Università 16, 35020 Legnaro, PD Italy
| | - Michele Drigo
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell’Università 16, 35020 Legnaro, PD Italy
| | - Marco Martini
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell’Università 16, 35020 Legnaro, PD Italy
| | - Mattia Cecchinato
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell’Università 16, 35020 Legnaro, PD Italy
| |
Collapse
|
15
|
Larsen FT, Bed'Hom B, Naghizadeh M, Kjærup RB, Zohari S, Dalgaard TS. Immunoprofiling of peripheral blood from infectious bronchitis virus vaccinated MHC-B chicken lines - Monocyte MHC-II expression as a potential correlate of protection. Dev Comp Immunol 2019; 96:93-102. [PMID: 30763593 DOI: 10.1016/j.dci.2019.02.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 02/05/2019] [Accepted: 02/05/2019] [Indexed: 06/09/2023]
Abstract
Vaccination programs are implemented in poultry farms to limit outbreaks and spread of infectious bronchitis virus (IBV), which is a substantial economic burden in the poultry industry. Immune correlates, used to predict vaccine efficacy, have proved difficult to find for IBV-vaccine-induced protection. To find correlates of IBV-vaccine-induced protection, hence, we employed a flow cytometric assay to quantify peripheral leucocyte subsets and expression of cell surface markers of six different non-vaccinated and vaccinated Major Histocompatibility Complex (MHC) haplotypes. Non-vaccinated and vaccinated MHC haplotypes presented differential leucocyte composition and IBV viral load. A strong effect of MHC-B, but not vaccination, on several leucocyte subsets resulted in positive correlations with IBV viral load based on MHC haplotype ranking. In addition, a strong effect of MHC-B and vaccination on monocyte MHC-II expression showed that animals with highest monocyte MHC-II expression had weakest vaccine-induced protection. In conclusion, we found several interesting MHC-B related immune correlates of protection and that flow cytometric analysis can be employed to study correlates of IBV-vaccine-induced protection.
Collapse
Affiliation(s)
- Frederik T Larsen
- Department of Animal Science, Aarhus University, Blichers Allé 20, 8830, Tjele, Denmark
| | - Bertrand Bed'Hom
- GABI, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Mohammad Naghizadeh
- Department of Animal Science, Aarhus University, Blichers Allé 20, 8830, Tjele, Denmark
| | - Rikke B Kjærup
- Department of Animal Science, Aarhus University, Blichers Allé 20, 8830, Tjele, Denmark
| | - Siamak Zohari
- National Veterinary Institute, SVA, Ullsv. 2B, S-75189, Uppsala, Sweden
| | - Tina S Dalgaard
- Department of Animal Science, Aarhus University, Blichers Allé 20, 8830, Tjele, Denmark.
| |
Collapse
|
16
|
Westerbeck JW, Machamer CE. The Infectious Bronchitis Coronavirus Envelope Protein Alters Golgi pH To Protect the Spike Protein and Promote the Release of Infectious Virus. J Virol 2019; 93:e00015-19. [PMID: 30867314 PMCID: PMC6532078 DOI: 10.1128/jvi.00015-19] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 03/07/2019] [Indexed: 12/20/2022] Open
Abstract
Coronaviruses (CoVs) assemble by budding into the lumen of the early Golgi complex prior to exocytosis. The small CoV envelope (E) protein plays roles in assembly, virion release, and pathogenesis. CoV E has a single hydrophobic domain (HD), is targeted to Golgi membranes, and has cation channel activity in vitro The E protein from avian infectious bronchitis virus (IBV) has dramatic effects on the secretory system, which require residues in the HD. Mutation of the HD of IBV E in a recombinant virus background results in impaired growth kinetics, impaired release of infectious virions, accumulation of IBV spike (S) protein on the plasma membrane compared to wild-type (WT) IBV-infected cells, and aberrant cleavage of IBV S on virions. We previously reported the formation of two distinct oligomeric pools of IBV E in transfected and infected cells. Disruption of the secretory pathway by IBV E correlates with a form that is likely monomeric, suggesting that the effects on the secretory pathway are independent of E ion channel activity. Here, we present evidence suggesting that the monomeric form of IBV E correlates with an increased Golgi luminal pH. Infection with IBV or expression of IBV E induces neutralization of Golgi pH, promoting a model in which IBV E alters the secretory pathway through interaction with host cell factors, protecting IBV S from premature cleavage and leading to the efficient release of infectious virus from the cells. This is the first demonstration of a coronavirus-induced alteration in the microenvironment of the secretory pathway.IMPORTANCE Coronaviruses are important human pathogens with significant zoonotic potential. Progress has been made toward identifying potential vaccine candidates for highly pathogenic human CoVs, including the use of attenuated viruses that lack the CoV E protein or express E mutants. However, no approved vaccines or antiviral therapeutics exist. Understanding the role of the CoV E protein in virus assembly and release is thus an important prerequisite for potential vaccines as well as in identifying novel antiviral therapeutics.
Collapse
Affiliation(s)
- Jason W Westerbeck
- Department of Cell Biology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Carolyn E Machamer
- Department of Cell Biology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| |
Collapse
|
17
|
Liu IL, Lin YC, Lin YC, Jian CZ, Cheng IC, Chen HW. A Novel Immunochromatographic Strip for Antigen Detection of Avian Infectious Bronchitis Virus. Int J Mol Sci 2019; 20:ijms20092216. [PMID: 31064083 PMCID: PMC6540333 DOI: 10.3390/ijms20092216] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 05/01/2019] [Accepted: 05/05/2019] [Indexed: 11/16/2022] Open
Abstract
Avian infectious bronchitis virus (IBV) causes considerable economic losses in the poultry industry worldwide, including Taiwan. IBV is among the most important pathogens in chickens, and it spreads rapidly among flocks. In addition to dozens of known serotypes, new viral variants have emerged due to the viral evolution and antigenic variation in IBVs. Therefore, the development of a sensitive, specific, and easily performed assay is crucial for the rapid detection and surveillance of IBV infections. A rapid and simple immunochromatographic strip (ICS) was developed in this study by employing monoclonal antibodies against spike and nucleocapsid proteins of IBV as the tracer and the capture antibody. The ICS showed high specificity in detecting IBV antigens, including several IBV genotypes and novel variants, as opposed to three other common avian respiratory viruses. The detection limit of the strip reached 104.4 50% embryo-infective dose. Moreover, in the experimental chicken model, the strip test demonstrated consistency in detecting IBV with RT-PCR gene detection. Taken together, this antigen detection strip has the potential to serve as an on-farm rapid test for IBV; therefore, it may facilitate surveillance and control of the disease.
Collapse
Affiliation(s)
- I-Li Liu
- Institute of Veterinary Clinical Science, School of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan.
| | - Yi-Chun Lin
- Department of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan.
| | - Yong-Chong Lin
- Department of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan.
| | - Cai-Zhen Jian
- Department of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan.
| | - Ivan-Chen Cheng
- Department of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan.
| | - Hui-Wen Chen
- Department of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan.
| |
Collapse
|
18
|
Zabihipetroudi MT, Ghalyanchilangeroudi A, Karimi V, Khaltabadifarahani R, Hashemzadeh M. Virus neutralization study using H120, H52, 793/B antisera against Iranian infectious bronchitis virus genotypes. Acta Virol 2019; 62:374-378. [PMID: 30472866 DOI: 10.4149/av_2018_404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Infectious bronchitis virus (IBV), a major pathogen of the domestic fowl, exhibits extensive antigenic variation. IBV is a member of the Coronaviridae family and the genus Gammacoronavirus. A new infectious bronchitis virus serotype can emerge from only very few amino acid changes within the major peplomer glycoprotein, namely in its S1 part forming the virion spike. Principally, the serotypes are identified by virus neutralization (VN) tests. This study is aimed to investigate the neutralizing efficiency of H52, H120, and 4/91 antiserum against IBV genotypes (IS-1494, IS-720, 793/B, IR-1) recently circulating in Iran. For the first time, we have used cross-neutralization tests for the serological classification of these isolates. In this study, all antisera failed to neutralize all IBV strains. According to the results of our research, cross-protection studies are necessary for the design of a proper vaccination program for IBV circulating genotypes in Iran. The data are useful for the development of new vaccine strategies. Keywords: avian infectious bronchitis; Iran; virus neutralization.
Collapse
|
19
|
Mahfuz S, Song H, Miao Y, Liu Z. Dietary inclusion of mushroom (Flammulina velutipes) stem waste on growth performance and immune responses in growing layer hens. J Sci Food Agric 2019; 99:703-710. [PMID: 29971802 DOI: 10.1002/jsfa.9236] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 06/18/2018] [Accepted: 06/28/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Medicinal mushrooms contain biologically active substances that can be used as an immune-modulating agent in poultry. The present study aimed to investigate the effects of Flammulina velutipes mushroom waste (FVW) on performance, immune response and serum immunity in growing layer hens. RESULTS No significant differences (P > 0.05) were observed with respect to average daily feed intake, body weight gain and feed conversion ratio among the experimental groups during the entire study period (1-70 days). Antibody titers against Newcastle disease and infectious bronchitis were higher (P < 0.05) in the FVW fed groups than in the control and antibiotic groups. On day 28, serum immunoglobulin (Ig)A and IgG were higher (P < 0.05) in the 6% FVW group than in the control and antibiotic fed groups. On day 70, serum IgA was higher (P < 0.05) in FVW fed groups than in the control group; IgG was higher (P < 0.05) in the FVW groups than in the control and antibiotic groups. However, IgM was higher (P < 0.05) in both the 4% and 6% FVW groups than in the control and antibiotic groups for both experimental periods. Serum cytokine interleukin (IL)-2 and tumor necrosis factor-α concentrations were significantly higher (P < 0.05) in both the 4% and 6% FVW grousp than in the control and antibiotic groups; IL-4 was significantly higher (P < 0.05) in the FVW groups than in the control group; and IL-6 was significantly higher (P < 0.05) in the 6% FVW group than in the control and antibiotic groups. CONCLUSION FVW at the 6% level can be used as a potential phytogenic feed stuff in growing layer hen rations with respect to improving the immune response without affecting normal weight gain. © 2018 Society of Chemical Industry.
Collapse
Affiliation(s)
- Shad Mahfuz
- School of Life Science, Jilin Agricultural University, Jilin, China
- Department of Animal Nutrition, Sylhet Agricultural University, Sylhet, Bangladesh
| | - Hui Song
- School of Life Science, Jilin Agricultural University, Jilin, China
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin, China
| | - Yue Miao
- School of Life Science, Jilin Agricultural University, Jilin, China
| | - Zhongjun Liu
- College of Chinese Medicine Materials, Jilin Agricultural University, Jilin, China
| |
Collapse
|
20
|
Xu L, Ren M, Sheng J, Ma T, Han Z, Zhao Y, Sun J, Liu S. Genetic and biological characteristics of four novel recombinant avian infectious bronchitis viruses isolated in China. Virus Res 2019; 263:87-97. [PMID: 30641197 PMCID: PMC7185608 DOI: 10.1016/j.virusres.2019.01.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/29/2018] [Accepted: 01/10/2019] [Indexed: 01/22/2023]
Abstract
Two IBV strains were proved to be originated from multiple recombination events. Viruses with very similar S1 gene sequences showed varying biological features. Point mutations were observed in the RBD and HVRs of the recombinant viruses. Point mutations likely have an effect on these differences in biological characteristics.
Infectious bronchitis viruses (IBVs) of GI-13 (793/B) and GI-19 (QX/LX4) lineages have been frequently detected in China in recent years. Naturally recombinant IBVs originating from the GI-13 and GI-19 lineages have also been isolated from chicken flocks with respiratory and renal problems in China. Thorough genetic and biological investigations of these recombinant viruses have led to speculation regarding their origin, evolution, and control. In order to confirm the previous results and further extend our understanding about the characteristics of the four recombinant IBV strains we had previously identified (I0718/17, I0722/17, I0724/17, and I0737/17), we conducted phylogenetic analysis by comparing their complete S1 gene sequences with those of 71 reference strains of different genotypes and lineages. We identified a close relationship between the S1 sequences of the four strains and those of GI-13 strains. The results of complete genome sequence analysis confirmed the previously identified recombination events in the four IBV strains and revealed additional recombination events in different genomic regions of strains I0718/17 and I0724/17, suggesting that the two strains originated from multiple recombination events between 4/91-like and YX10-like viruses. We comparatively evaluated the antigenicity, pathogenicity, and affinity of the four recombinant viruses and their deduced parental strains in the trachea and kidneys. Some of the strains showed comparable antigenic relatedness, pathogenicity, and affinity for the trachea and kidneys among each other and with their parental viruses; however, some of them showed varying biological characteristics. Point mutations observed in the receptor-binding domain and hypervariable region of the S1 subunit of the spike protein likely have an effect on these differences in biological characteristics, although the influence of other factors—such as host innate-immune responses and changes in genomic regions beyond the S1 protein—might also be responsible for such changes.
Collapse
Affiliation(s)
- Liwen Xu
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, the Chinese Academy of Agricultural Sciences, Harbin, 150001, People's Republic of China
| | - Mengting Ren
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, the Chinese Academy of Agricultural Sciences, Harbin, 150001, People's Republic of China
| | - Jie Sheng
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, the Chinese Academy of Agricultural Sciences, Harbin, 150001, People's Republic of China
| | - Tianxin Ma
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, the Chinese Academy of Agricultural Sciences, Harbin, 150001, People's Republic of China
| | - Zongxi Han
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, the Chinese Academy of Agricultural Sciences, Harbin, 150001, People's Republic of China
| | - Yan Zhao
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, the Chinese Academy of Agricultural Sciences, Harbin, 150001, People's Republic of China
| | - Junfeng Sun
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, the Chinese Academy of Agricultural Sciences, Harbin, 150001, People's Republic of China
| | - Shengwang Liu
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, the Chinese Academy of Agricultural Sciences, Harbin, 150001, People's Republic of China.
| |
Collapse
|
21
|
Ali A, Kilany WH, Zain El-Abideen MA, Sayed ME, Elkady M. Safety and efficacy of attenuated classic and variant 2 infectious bronchitis virus candidate vaccines. Poult Sci 2018; 97:4238-4244. [PMID: 30085298 PMCID: PMC7107197 DOI: 10.3382/ps/pey312] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 06/27/2018] [Indexed: 12/24/2022] Open
Abstract
Vaccination programs against infectious bronchitis virus (IBV) in Egypt depend on both classical and/or imported variant IBV strain vaccines. However, many IBV outbreaks associated with respiratory distress, nephropathy, and high mortalities were attributed to the circulation of both classical and new nephropathogenic IBV variant 2 strains. In the present study, we report the development of attenuated IBV candidate vaccines using the classic IBV strains (IBM41 and IB2) and a nephropathogenic strain (IBvar2). The wild-type (WT) viruses were attenuated through serial passages in embryonated specific pathogen free (SPF) chicken eggs. Virulence of the attenuated viruses was then tested via the ocular route inoculation and the in vivo back passage in day-old SPF chickens. Efficacy against homologous challenge was investigated also in day-old SPF chickens. Results showed that the viruses were successfully adapted to the embryo by the 100th (IBM41 and IB2) and 110th passages (IBvar2). The attenuated viruses were safe and showed no change of virulence in day-old SPF chickens up to the 10th back passages. The efficacy experiment showed that the attenuated vaccines showed 90 to 100% protection against the homologous challenge based on ciliostasis score and protection percent. The att-IBM41 and att-IB2 vaccines were able to reduce the shedding of the challenge at 3 days post-infection (DPI) and no virus shedding was detected in both vaccinated groups by 5 DPI. In the att-IBvar2 vaccinated birds, only 20% of vaccinated birds shed the challenge virus with low titers (102.10±0.3 EID50/mL) at 3 DPI. In conclusion, the attenuated strains IBM41, IB2, and IBvar2 are efficient vaccine candidates against currently circulating classic and variant IB viruses, respectively. Further studies to evaluate the field efficacy and combining these attenuated IBV strains to induce a wider protection against heterologous IBV challenge are suggested.
Collapse
Affiliation(s)
- Ahmed Ali
- Poultry Diseases Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 65211, Egypt
| | - Walid H Kilany
- Reference Laboratory for Veterinary Quality Control on Poultry Production (RLQP), Animal Health Research Institute, P.O. Box 264, Dokki, Giza 12618, Egypt
| | - Mohamed A Zain El-Abideen
- Reference Laboratory for Veterinary Quality Control on Poultry Production (RLQP), Animal Health Research Institute, P.O. Box 264, Dokki, Giza 12618, Egypt
| | - Magdy El Sayed
- Department of Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
- Middle East for Veterinary Vaccine Company, Second Industrial Area, El-Salhya El-Gededa, El-Sharkia 44671, Egypt
| | - Magdy Elkady
- Poultry Diseases Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 65211, Egypt
| |
Collapse
|
22
|
Bickerton E, Dowgier G, Britton P. Recombinant infectious bronchitis viruses expressing heterologous S1 subunits: potential for a new generation of vaccines that replicate in Vero cells. J Gen Virol 2018; 99:1681-1685. [PMID: 30355423 DOI: 10.1099/jgv.0.001167] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The spike glycoprotein (S) of infectious bronchitis virus (IBV) comprises two subunits, S1 and S2. We have previously demonstrated that the S2 subunit of the avirulent Beau-R strain is responsible for its extended cellular tropism for Vero cells. Two recombinant infectious bronchitis viruses (rIBVs) have been generated; the immunogenic S1 subunit is derived from the IBV vaccine strain, H120, or the virulent field strain, QX, within the genetic background of Beau-R. The rIBVs BeauR-H120(S1) and BeauR-QX(S1) are capable of replicating in primary chicken kidney cell cultures and in Vero cells. These results demonstrate that rIBVs are able to express S1 subunits from genetically diverse strains of IBV, which will enable the rational design of a future generation of IBV vaccines that may be grown in Vero cells.
Collapse
Affiliation(s)
- Erica Bickerton
- The Pirbright Institute, Ash Road, Pirbright, Surrey, GU24 0NF, UK
| | - Giulia Dowgier
- The Pirbright Institute, Ash Road, Pirbright, Surrey, GU24 0NF, UK
| | - Paul Britton
- The Pirbright Institute, Ash Road, Pirbright, Surrey, GU24 0NF, UK
| |
Collapse
|
23
|
Ellis S, Keep S, Britton P, de Wit S, Bickerton E, Vervelde L. Recombinant Infectious Bronchitis Viruses Expressing Chimeric Spike Glycoproteins Induce Partial Protective Immunity against Homologous Challenge despite Limited Replication In Vivo. J Virol 2018; 92:e01473-18. [PMID: 30209177 PMCID: PMC6232476 DOI: 10.1128/jvi.01473-18] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 09/03/2018] [Indexed: 12/19/2022] Open
Abstract
Vaccination regimes against Infectious bronchitis virus (IBV), which are based on a single virus serotype, often induce insufficient levels of cross-protection against serotypes and two or more antigenically diverse vaccines are used in attempt to provide broader protection. Amino acid differences in the surface protein, spike (S), in particular the S1 subunit, are associated with poor cross-protection. Here, homologous vaccination trials with recombinant IBVs (rIBVs), based on the apathogenic strain, BeauR, were conducted to elucidate the role of S1 in protection. A single vaccination of specific-pathogen-free chickens with rIBV expressing S1 of virulent strains M41 or QX, BeauR-M41(S1) and BeauR-QX(S1), gave incomplete protection against homologous challenge, based on ciliary activity and clinical signs. There could be conformational issues with the spike if heterologous S1 and S2 are linked, suggesting a homologous S2 might be essential. To address this, a homologous vaccination-challenge trial incorporating rIBVs expressing full spike from M41, BeauR-M41(S), and S2 subunit from M41, BeauR-M41(S2) was conducted. All chimeric viruses grew to similar titers in vitro, induced virus-specific partial protective immunity, evident by cellular infiltrations, reductions in viral RNA load in the trachea and conjunctiva and higher serum anti-IBV titers. Collectively, these findings show that vaccination with rIBVs primed the birds for challenge but the viruses were cleared rapidly from the mucosal tissues in the head. Chimeric S1 and S2 viruses did not protect as effectively as BeauR-M41(S) based on ciliary activity and clinical signs. Booster vaccinations and an rIBV with improved in vivo replication may improve the levels of protection.IMPORTANCE Infectious bronchitis virus causes an acute, highly contagious respiratory disease, responsible for significant economic losses to the poultry industry. Amino acid differences in the surface protein, spike (S), in particular the S1 subunit, have been associated with poor cross-protection. Available vaccines give poor cross-protection and rationally designed live attenuated vaccines, based on apathogenic BeauR, could address these. Here, to determine the role of S1 in protection, a series of homologous vaccination trials with rIBVs were conducted. Single vaccinations with chimeric rIBVs induced virus-specific partial protective immunity, characterized by reduction in viral load and serum antibody titers. However, BeauR-M41(S) was the only vaccination to improve the level of protection against clinical signs and the loss of tracheal ciliary activity. Growth characteristics show that all of the rIBVs replicated in vitro to similar levels. Booster vaccinations and an rIBV with improved in vivo replication may improve the levels of protection.
Collapse
Affiliation(s)
- Samantha Ellis
- Infection and Immunity, The Roslin Institute, University of Edinburgh, Penicuik, Midlothian, United Kingdom
| | - Sarah Keep
- The Pirbright Institute, Pirbright, Surrey, United Kingdom
| | - Paul Britton
- The Pirbright Institute, Pirbright, Surrey, United Kingdom
| | | | | | - Lonneke Vervelde
- Infection and Immunity, The Roslin Institute, University of Edinburgh, Penicuik, Midlothian, United Kingdom
| |
Collapse
|
24
|
De Silva Senapathi U, Abdul-Cader MS, Amarasinghe A, van Marle G, Czub M, Gomis S, Abdul-Careem MF. The In Ovo Delivery of CpG Oligonucleotides Protects against Infectious Bronchitis with the Recruitment of Immune Cells into the Respiratory Tract of Chickens. Viruses 2018; 10:E635. [PMID: 30445707 PMCID: PMC6266937 DOI: 10.3390/v10110635] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 11/11/2018] [Accepted: 11/13/2018] [Indexed: 01/11/2023] Open
Abstract
The in ovo delivery of cytosine-guanosine (CpG) oligodeoxynucleotides (ODNs) protects chickens against many bacterial and viral infections, by activating the toll-like receptor (TLR)21 signaling pathway. Although the delivery of CpG ODNs in ovo at embryo day (ED) 18 has been shown to reduce infectious bronchitis virus (IBV) loads in embryonic chicken lungs pre-hatch, whether in ovo delivered CpG ODNs are capable of protecting chickens against a post-hatch challenge is unknown. Thus, our objectives were to determine the protective effect of the in ovo delivery of CpG ODNs at ED 18 against IBV infection encountered post-hatch and, then, to investigate the mechanisms of protection. We found significantly higher survival rates and reduced IBV infection in the chickens following the pre-treatment of the ED 18 eggs with CpG ODNs. At 3 days post infection (dpi), we found an increased recruitment of macrophages, cluster of differentiation (CD)8α+ and CD4+ T lymphocytes, and an up-regulation of interferon (IFN)-γ mRNA in the respiratory tract of the chickens. Overall, it may be inferred that CpG ODNs, when delivered in ovo, provide protection against IBV infection induced morbidity and mortality with an enhanced immune response.
Collapse
Affiliation(s)
- Upasama De Silva Senapathi
- Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada.
| | - Mohamed Sarjoon Abdul-Cader
- Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada.
| | - Aruna Amarasinghe
- Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada.
| | - Guido van Marle
- Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada.
| | - Markus Czub
- Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada.
| | - Susantha Gomis
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B5, Canada.
| | - Mohamed Faizal Abdul-Careem
- Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada.
| |
Collapse
|
25
|
Chhabra R, Ball C, Chantrey J, Ganapathy K. Differential innate immune responses induced by classical and variant infectious bronchitis viruses in specific pathogen free chicks. Dev Comp Immunol 2018; 87:16-23. [PMID: 29751011 PMCID: PMC7173069 DOI: 10.1016/j.dci.2018.04.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 04/30/2018] [Accepted: 04/30/2018] [Indexed: 06/08/2023]
Abstract
Avian infectious bronchitis virus (IBV) continues to cause serious economic losses in global chicken production. Concurrent circulation of both classic and variant IBVs have been identified in most parts of the world, raising major challenges to global prevention and control efforts. Therefore, immunopathogenesis, particularly early host responses, needs to be better understood for effective control of diseases caused by different strains of IBVs. We investigated differing immunopathogenesis in chickens following infection with IS/885/00-like (885), QX-like (QX) and M41 IBV strains. We confirmed that the histopathological changes, proinflammatory and innate immune gene responses were induced to different magnitudes, depending on the IBV strain. Results indicated that upregulation of proinflammatory cytokines (such as IL-6 and IL-1β) and lipopolysaccharide-induced tumor necrosis factor-alpha factor (LITAF) expression is induced by IBV M41 in the trachea and by IBV 885 and QX in the kidney, which mainly coincides with tracheal and renal histopathological lesions respectively caused by these strains. In addition, elevated levels of TLR3, MDA5 and IFN-β expression occurred concurrently with greater lesion severity in IBV infected trachea and kidney tissues. Overall, this study reports marked differences in the activation of early host responses by pathogenic IBV strains.
Collapse
Affiliation(s)
- Rajesh Chhabra
- University of Liverpool, Leahurst Campus, Neston, Cheshire, CH64 7TE, UK; College Central Laboratory, Lala Lajpat Rai University of Veterinary & Animal Sciences, Hisar, 125004, India.
| | - Christopher Ball
- University of Liverpool, Leahurst Campus, Neston, Cheshire, CH64 7TE, UK.
| | - Julian Chantrey
- University of Liverpool, Leahurst Campus, Neston, Cheshire, CH64 7TE, UK.
| | - Kannan Ganapathy
- University of Liverpool, Leahurst Campus, Neston, Cheshire, CH64 7TE, UK.
| |
Collapse
|
26
|
Whitehead ABR, Butcher GD, Walden HS, Duque V, Cruz M, Hernandez JA. Burden of exposure to infectious bursal disease virus, infectious bronchitis virus, Newcastle disease virus, Mycoplasma gallisepticum, and intestinal parasites in introduced broiler chickens on the Galapagos. PLoS One 2018; 13:e0203658. [PMID: 30248128 PMCID: PMC6152864 DOI: 10.1371/journal.pone.0203658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 08/26/2018] [Indexed: 12/03/2022] Open
Abstract
Diseases in introduced broilers can possibly spill over to wild birds on the Galapagos. Knowledge about the current burden of exposure to pathogens in broilers on the Galapagos is very limited. The objective of the study reported here was to measure the burden of exposure to infectious bursal disease virus (IBDV), infectious bronchitis virus (IBV), Newcastle disease virus (NDV), Mycoplasma gallisepticum (MG), and intestinal parasites in a sample of broiler chickens on 13 farms on Santa Cruz Island and San Cristobal Island in July 2017. Blood serum samples were tested for detection of antibodies to IBDV, IBV, NDV, and MG by using an IDEXX Enzyme-linked Immunosorbent Assay. In addition, fecal samples and pen bedding environmental samples were processed and analyzed for diagnosis of intestinal parasite eggs under a compound light microscope. The frequency of seropositive broilers to IBDV was 74/130 or 56% (95% CI = 48, 65%), to IBV was 27/130 or 20% (14, 28%), and to NDV was 1/130 or 0.7% (0.1, 4%). All broilers tested negative to MG antibodies. Eimeria spp. infection was common in study broilers. Finally, we observed interaction between broiler chickens and wild birds (finches) inside broiler pens, as well as the presence of backyard chickens inside property limits of study farms. This study produced evidence that exposure to IBDV, IBV, and intestinal parasites in broilers on Santa Cruz Island and San Cristobal Island is important. Study results are relevant because (i) they provide new baseline data on the burden of exposure to avian pathogens in broiler farms, (ii) justify the need to verify standard operating procedures in hatcheries that supply (non-vaccinated) day-old chicks to the Galapagos and (iii) to implement enhanced biosecurity standards on broiler chicken farms to mitigate risk of disease transmission between broilers, backyard poultry, and wild birds on the Galapagos.
Collapse
Affiliation(s)
- Ashley B. R. Whitehead
- College of Veterinary Medicine, University of Florida, Gainesville, Florida, United States of America
| | - Gary D. Butcher
- College of Veterinary Medicine, University of Florida, Gainesville, Florida, United States of America
| | - Heather S. Walden
- College of Veterinary Medicine, University of Florida, Gainesville, Florida, United States of America
| | - Viviana Duque
- Agencia de Regulación y Control de la Bioseguridad y Cuarentena para Galápagos, Santa Cruz, Galapagos, Ecuador
| | - Marilyn Cruz
- Agencia de Regulación y Control de la Bioseguridad y Cuarentena para Galápagos, Santa Cruz, Galapagos, Ecuador
| | - Jorge A. Hernandez
- College of Veterinary Medicine, University of Florida, Gainesville, Florida, United States of America
- Center for Latin American Studies, University of Florida, Gainesville, Florida, United States of America
- College of Public Health and Health Professions, University of Florida, Gainesville, Florida, United States of America
| |
Collapse
|
27
|
Li J, Helal ZH, Karch CP, Mishra N, Girshick T, Garmendia A, Burkhard P, Khan MI. A self-adjuvanted nanoparticle based vaccine against infectious bronchitis virus. PLoS One 2018; 13:e0203771. [PMID: 30216376 PMCID: PMC6138407 DOI: 10.1371/journal.pone.0203771] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 08/27/2018] [Indexed: 12/21/2022] Open
Abstract
Infectious bronchitis virus (IBV) affects poultry respiratory, renal and reproductive systems. Currently the efficacy of available live attenuated or killed vaccines against IBV has been challenged. We designed a novel IBV vaccine alternative using a highly innovative platform called Self-Assembling Protein Nanoparticle (SAPN). In this vaccine, B cell epitopes derived from the second heptad repeat (HR2) region of IBV spike proteins were repetitively presented in its native trimeric conformation. In addition, flagellin was co-displayed in the SAPN to achieve a self-adjuvanted effect. Three groups of chickens were immunized at four weeks of age with the vaccine prototype, IBV-Flagellin-SAPN, a negative-control construct Flagellin-SAPN or a buffer control. The immunized chickens were challenged with 5x104.7 EID50 IBV M41 strain. High antibody responses were detected in chickens immunized with IBV-Flagellin-SAPN. In ex vivo proliferation tests, peripheral mononuclear cells (PBMCs) derived from IBV-Flagellin-SAPN immunized chickens had a significantly higher stimulation index than that of PBMCs from chickens receiving Flagellin-SAPN. Chickens immunized with IBV-Flagellin-SAPN had a significant reduction of tracheal virus shedding and lesser tracheal lesion scores than did negative control chickens. The data demonstrated that the IBV-Flagellin-SAPN holds promise as a vaccine for IBV.
Collapse
Affiliation(s)
- Jianping Li
- Department of Pathobiology and Veterinary Science University of Connecticut, Storrs, CT, United States of America
| | - Zeinab H. Helal
- Department of Pathobiology and Veterinary Science University of Connecticut, Storrs, CT, United States of America
- Department of Microbiology and Immunology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Christopher P. Karch
- The Institute of Material Sciences, University of Connecticut, Storrs, CT, United States of America
| | - Neha Mishra
- Department of Pathobiology and Veterinary Science University of Connecticut, Storrs, CT, United States of America
| | - Theodore Girshick
- Charles River Laboratories, Avian vaccine services, North Franklin, CT, United States of America
| | - Antonio Garmendia
- Department of Pathobiology and Veterinary Science University of Connecticut, Storrs, CT, United States of America
| | - Peter Burkhard
- The Institute of Material Sciences, University of Connecticut, Storrs, CT, United States of America
- Department of Molecular Cell Biology, University of Connecticut, Storrs, CT, United States of America
- Alpha-O-Peptides AG, Riehen, Switzerland
| | - Mazhar I. Khan
- Department of Pathobiology and Veterinary Science University of Connecticut, Storrs, CT, United States of America
- * E-mail:
| |
Collapse
|
28
|
Yuan Y, Zhang ZP, He YN, Fan WS, Dong ZH, Zhang LH, Sun XK, Song LL, Wei TC, Mo ML, Wei P. Protection against Virulent Infectious Bronchitis Virus Challenge Conferred by a Recombinant Baculovirus Co-Expressing S1 and N Proteins. Viruses 2018; 10:v10070347. [PMID: 29954092 PMCID: PMC6071288 DOI: 10.3390/v10070347] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 06/06/2018] [Accepted: 06/22/2018] [Indexed: 01/31/2023] Open
Abstract
Avian infectious bronchitis virus (IBV) is the causative agent of infectious bronchitis, which results in considerable economic losses. It is imperative to develop safe and efficient candidate vaccines to control IBV infection. In the current study, recombinant baculoviruses co-expressing the S1 and N proteins and mono-expressing S1 or N proteins of the GX-YL5 strain of IBV were constructed and prepared into subunit vaccines rHBM-S1-N, rHBM-S1 and rHBM-N. The levels of immune protection of these subunit vaccines were evaluated by inoculating specific pathogen-free (SPF) chickens at 14 days of age, giving them a booster with the same dose 14 days later and challenging them with a virulent GX-YL5 strain of IBV 14 days post-booster (dpb). The commercial vaccine strain H120 was used as a control. The IBV-specific antibody levels, as well as the percentages of CD4+ and CD8+ T lymphocytes, were detected within 28 days post-vaccination (dpv). The morbidity, mortality and re-isolation of the virus from the tracheas and kidneys of challenged birds were evaluated at five days post-challenge (dpc). The results showed that the IBV-specific antibody levels and the percentages of CD4+ and CD8+ T lymphocytes were higher in the rHBM-S1-N vaccinated birds compared to birds vaccinated with the rHBM-S1 and rHBM-N vaccines. At 5 dpc, the mortality, morbidity and virus re-isolation rate of the birds vaccinated with the rHBM-S1-N vaccine were slightly higher than those vaccinated with the H120 control vaccine but were lower than those vaccinated with the rHBM-S1 and rHBM-N vaccines. The present study demonstrated that the protection of the recombinant baculovirus co-expressing S1 and N proteins was better than that of recombinant baculoviruses mono-expressing the S1 or N protein. Thus, the recombinant baculovirus co-expressing S1 and N proteins could serve as a potential IBV vaccine and this demonstrates that the bivalent subunit vaccine including the S1 and N proteins might be a strategy for the development of an IBV subunit vaccine.
Collapse
Affiliation(s)
- Yuan Yuan
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Zhi-Peng Zhang
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Yi-Ning He
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Wen-Sheng Fan
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Zhi-Hua Dong
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Li-Hua Zhang
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Xin-Kuan Sun
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Li-Li Song
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Tian-Chao Wei
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Mei-Lan Mo
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| | - Ping Wei
- College of Animal Science and Technology, Guangxi University, Nanning 530004, China.
| |
Collapse
|
29
|
Lopes PD, Okino CH, Fernando FS, Pavani C, Casagrande VM, Lopez RFV, Montassier MDFS, Montassier HJ. Inactivated infectious bronchitis virus vaccine encapsulated in chitosan nanoparticles induces mucosal immune responses and effective protection against challenge. Vaccine 2018; 36:2630-2636. [PMID: 29653848 DOI: 10.1016/j.vaccine.2018.03.065] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 02/17/2018] [Accepted: 03/24/2018] [Indexed: 01/07/2023]
Abstract
Avian infectious bronchitis virus (IBV) is one of the most important viral diseases of poultry. The mucosa of upper respiratory tract, specially the trachea, is the primary replication site for this virus. However, conventional inactivate IBV vaccines usually elicit reduced mucosal immune responses and local protection. Thus, an inactivated IBV vaccine containing BR-I genotype strain encapsulated in chitosan nanoparticles (IBV-CS) was produced by ionic gelation method to be administered by oculo-nasal route to chickens. IBV-CS vaccine administered alone resulted in markedly mucosal immune responses, characterized by high levels of anti-IBV IgA isotype antibodies and IFNγ gene expression at 1dpi. The association of live attenuated Massachusetts IBV and IBV-CS vaccine also induced strong mucosal immune responses, though a switch from IgA isotype to IgG was observed, and IFNγ gene expression peak was late (at 5 dpi). Efficacy of IBV-CS was evaluated by tracheal ciliostasis analysis, histopathology examination, and viral load determination in the trachea and kidney. The results indicated that IBV-CS vaccine administered alone or associated with a live attenuated heterologous vaccine induced both humoral and cell-mediated immune responses at the primary site of viral replication, and provided an effective protection against IBV infection at local (trachea) and systemic (kidney) sites.
Collapse
Affiliation(s)
- Priscila Diniz Lopes
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castelane, S/N - Vila Industrial, Jaboticabal, São Paulo CEP: 14884-900, Brazil.
| | - Cintia Hiromi Okino
- Embrapa Pecuária Sudeste, Empresa Brasileira de Pesquisa Agropecuária (Embrapa), Rodovia Washington Luiz, Km 234 s/n - Fazenda Canchim, São Carlos, São Paulo CEP: 13560-970, Brazil
| | - Filipe Santos Fernando
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castelane, S/N - Vila Industrial, Jaboticabal, São Paulo CEP: 14884-900, Brazil
| | - Caren Pavani
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castelane, S/N - Vila Industrial, Jaboticabal, São Paulo CEP: 14884-900, Brazil
| | - Viviane Mariguela Casagrande
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castelane, S/N - Vila Industrial, Jaboticabal, São Paulo CEP: 14884-900, Brazil
| | - Renata F V Lopez
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo (USP), Avenida Bandeirantes, 3.900 - Monte Alegre, Ribeirão Preto, São Paulo CEP: 14040-900, Brazil
| | - Maria de Fátima Silva Montassier
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castelane, S/N - Vila Industrial, Jaboticabal, São Paulo CEP: 14884-900, Brazil
| | - Helio José Montassier
- Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castelane, S/N - Vila Industrial, Jaboticabal, São Paulo CEP: 14884-900, Brazil
| |
Collapse
|
30
|
Habibi M, Karimi V, Langeroudi AG, Ghafouri SA, Hashemzadeh M, Farahani RK, Maghsoudloo H, Abdollahi H, Seifouri P. Combination of H120 and 1/96 avian infectious bronchitis virus vaccine strains protect chickens against challenge with IS/1494/06 (variant 2)-like infectious bronchitis virus. Acta Virol 2017; 61:150-160. [PMID: 28523921 DOI: 10.4149/av_2017_02_04] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Avian infectious bronchitis (IB) is a worldwide chicken disease, caused by avian infectious bronchitis virus (IBV) which infects all commercial poultry lines. The present study was done to evaluate protection caused by two different serotype vaccines (Massachusetts and 793/B) in order to evaluate protection against challenge with IS/1494/06-like virus (variant 2-like virus), which is prevalent in the Middle East. SPF chickens were divided into four groups (n = 20). First and second group as negative control group and non-vaccinated-challenged group received no vaccine. Groups 3 and 4 received H120-H120 and H120-1/96 IBV vaccine strains at the 1st and 14th day, respectively. Twenty one days after last vaccination, non-vaccinated-challenged group and vaccinated group were challenged using variant 2-like IBV. Serum samples were collected before challenge to measure humoral immune response of chickens. Five days after challenge, the tissue samples from the trachea, lungs and kidneys were taken to evaluate cilliary activity, viral load (quantitative real-time RT-PCR), and histopathological evaluation. Clinical sign scores were also recorded after challenge. Overall, the results showed a protective efficacy of the used vaccination program. Best cross protection (69.2%) was obtained in the H120-1/96 vaccinated group. Virus replication of the challenged virus in H120-1/96 group compared with H120-H120 group showed a significant reduction of viral load in trachea (1.5×103 compared to 503) and kidneys. Clinical sign scores of the challenged groups showed significant effect of the vaccination program to reduce clinical signs. The trachea pathological scores and histopathological findings in the lungs and kidneys also confirmed better protective efficacy of vaccinated groups. In conclusion, using combination of heterologous IBV vaccine serotypes (Massachusetts and 793/B) would be a better strategy to control variant 2-like viruses, but more evaluation is needed using other circulating isolates to find the best combination of vaccines.
Collapse
|
31
|
Zhang W, Bouwman KM, van Beurden SJ, Ordonez SR, van Eijk M, Haagsman HP, Verheije MH, Veldhuizen EJA. Chicken mannose binding lectin has antiviral activity towards infectious bronchitis virus. Virology 2017; 509:252-259. [PMID: 28686880 PMCID: PMC7111670 DOI: 10.1016/j.virol.2017.06.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 06/22/2017] [Accepted: 06/23/2017] [Indexed: 12/25/2022]
Abstract
Mannose binding lectin (MBL) is a collagenous C-type lectin, which plays an important role in innate immunity. It can bind to carbohydrates on the surface of a wide range of pathogens, including viruses. Here we studied the antiviral effect of recombinant chicken (rc)MBL against Infectious Bronchitis Virus (IBV), a highly contagious coronavirus of chicken. rcMBL inhibited in a dose-dependent manner the infection of BHK-21 cells by IBV-Beaudette, as detected by immunofluorescence staining of viral proteins and qPCR. ELISA and negative staining electron microscopy showed that rcMBL bound directly to IBV, resulting in the aggregation of viral particles. Furthermore, we demonstrated that MBL bound specifically to the spike S1 protein of IBV which mediates viral attachment. This subsequently blocked the attachment of S1 to IBV-susceptible cells in chicken tracheal tissues as shown in protein histochemistry. Taken together, rcMBL exhibits antiviral activity against IBV, based on a direct interaction with IBV virions.
Collapse
Affiliation(s)
- Weidong Zhang
- Division of Molecular Host Defense, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, The Netherlands
| | - Kim M Bouwman
- Division of Pathology, Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, The Netherlands
| | - Steven J van Beurden
- Division of Pathology, Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, The Netherlands
| | - Soledad R Ordonez
- Division of Molecular Host Defense, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, The Netherlands
| | - Martin van Eijk
- Division of Molecular Host Defense, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, The Netherlands
| | - Henk P Haagsman
- Division of Molecular Host Defense, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, The Netherlands
| | - M Hélène Verheije
- Division of Pathology, Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, The Netherlands
| | - Edwin J A Veldhuizen
- Division of Molecular Host Defense, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, The Netherlands.
| |
Collapse
|
32
|
Zhang P, Wang J, Wang W, Liu X, Liu H, Li X, Wu X. Astragalus polysaccharides enhance the immune response to avian infectious bronchitis virus vaccination in chickens. Microb Pathog 2017; 111:81-85. [PMID: 28826771 DOI: 10.1016/j.micpath.2017.08.023] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 08/15/2017] [Accepted: 08/16/2017] [Indexed: 12/20/2022]
Abstract
Astragalus polysaccharides (APS) are biological macromolecules extracted from Astragalus species that have strong immunoregulatory properties. In this study, APS were employed as an adjuvant for an avian infectious bronchitis virus (IBV) vaccine, and its effects on the cellular immune and humoral immune responses to vaccination in chicken were investigated. One hundred and fifty chicken were randomly divided into five groups (n = 30, each group). The chickens in all groups, except for the unvaccinated control group, were vaccinated with an IBV DNA vaccine. Three of the four vaccinated groups were administered different doses of APS (APSL, 10 mg/kg; APSM, 50 mg/kg; and APSH, 100 mg/kg) after the first vaccination, and the remaining vaccinated group served as a control, without any additional treatment. At 14, 28, and 42 days after the first vaccination, serum anti-IBV antibody titers; peripheral lymphocyte proliferation; and the mRNA expression of IL-1β, IL-2, IL-8, and TNF-α in the spleen were assessed by enzyme-linked immunosorbent assay (ELISA), the cell counting kit-8 (CCK-8), and real time quantitative RT-PCR (qRT-PCR), respectively. At most time points, the titer of IBV-specific antibodies, lymphocyte proliferation, and IL-1β, IL-2, IL-8, and TNF-α mRNA expression levels were higher in three APS groups than in the vaccine control group, and these increases were dose-dependent. These data suggest that APS could be used as an adjuvant for IBV vaccination to provide better protection against IBV infection.
Collapse
Affiliation(s)
- Pengju Zhang
- Institute of Animal Sciences, Jilin Academy of Agricultural Sciences, #1363 Shengtai Street, Changchun 130124, Jilin Province, PR China
| | - Jun Wang
- College of Animal Science and Technology, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118, Jilin Province, PR China
| | - Weixia Wang
- Institute of Animal Sciences, Jilin Academy of Agricultural Sciences, #1363 Shengtai Street, Changchun 130124, Jilin Province, PR China
| | - Xiaohui Liu
- Institute of Animal Sciences, Jilin Academy of Agricultural Sciences, #1363 Shengtai Street, Changchun 130124, Jilin Province, PR China
| | - Haiyan Liu
- Institute of Animal Sciences, Jilin Academy of Agricultural Sciences, #1363 Shengtai Street, Changchun 130124, Jilin Province, PR China
| | - Xintao Li
- Institute of Animal Sciences, Jilin Academy of Agricultural Sciences, #1363 Shengtai Street, Changchun 130124, Jilin Province, PR China.
| | - Xinghong Wu
- Institute of Animal Sciences, Jilin Academy of Agricultural Sciences, #1363 Shengtai Street, Changchun 130124, Jilin Province, PR China.
| |
Collapse
|
33
|
Lei J, Shi T, Sun D, Mo K, Yan Y, Jin Y, Liao M, Zhou J. Development and application of nsp5-ELISA for the detection of antibody to infectious bronchitis virus. J Virol Methods 2017; 243:182-189. [PMID: 28223026 PMCID: PMC7113779 DOI: 10.1016/j.jviromet.2017.01.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 01/30/2017] [Accepted: 01/30/2017] [Indexed: 01/18/2023]
Abstract
Infectious bronchitis virus (IBV) continues to be one of the most important poultry pathogens worldwide. The current commercially available enzyme-linked immunosorbent assay (ELISA) kits for IBV specific antibody detection are mostly based on the whole virion, and few serological tests based on nonstructural proteins of IBV have been developed. Herein, an alternative indirect ELISA for detection of IBV antibody was developed with IBV nonstructural protein 5 (nsp5) produced by Escherichia coli. Using an indirect immunofluorescence assay (IFA) and a commercial ELISA kit as reference, we optimized the nsp5-ELISA and determined its cut-off as 0.12. The diagnostic sensitivity (DSN), specificity (DSP) and accuracy of the nsp5-ELISA were 93.11%, 95.38% and 93.33%, respectively, compared with IFA in 660 field serum samples, and were 98.11%, 95.00% and 97.62%, respectively, compared with the commercial IBV ELISA kit (IDEXX) in 126 field sera samples. Furthermore, a time course of IBV specific antibody level detected by nsp5-ELISA following IBV infection and vaccination is consistent with that of IBV antibody detected by the commercial ELISA kit. The results presented in this study indicate that nsp5-ELISA has the potential to serve as a rapid, reliable and cost-effective method for IBV antibody detection. This study is the first to report the development of an nsp-based ELISA to detect an antibody to IBV.
Collapse
Affiliation(s)
- Jing Lei
- Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou 310058, PR China; Institute of Immunology and College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China.
| | - Tingting Shi
- Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou 310058, PR China.
| | - Dongnan Sun
- Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou 310058, PR China.
| | - Kaikun Mo
- Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou 310058, PR China.
| | - Yan Yan
- Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou 310058, PR China.
| | - Yulan Jin
- Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou 310058, PR China.
| | - Min Liao
- Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou 310058, PR China.
| | - Jiyong Zhou
- Key Laboratory of Animal Virology of Ministry of Agriculture, Zhejiang University, Hangzhou 310058, PR China; Institute of Immunology and College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China.
| |
Collapse
|
34
|
Hutton S, Bettridge J, Christley R, Habte T, Ganapathy K. Detection of infectious bronchitis virus 793B, avian metapneumovirus, Mycoplasma gallisepticum and Mycoplasma synoviae in poultry in Ethiopia. Trop Anim Health Prod 2017; 49:317-322. [PMID: 27924415 PMCID: PMC5253144 DOI: 10.1007/s11250-016-1195-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 11/24/2016] [Indexed: 12/16/2022]
Abstract
A survey was conducted into respiratory infectious diseases of poultry on a chicken breeder farm run by the Ethiopian Institute of Agricultural Research (EIAR), located in Debre Zeit, Ethiopia. Oropharyngeal swabs were collected from 117 randomly selected birds, and blood was taken from a subset of 73 of these birds. A combination of serological and molecular methods was used for detection of pathogens. For the first time in Ethiopia, we report the detection of variant infectious bronchitis virus (793B genotype), avian metapneumovirus subtype B and Mycoplasma synoviae in poultry. Mycoplasma gallisepticum was also found to be present; however, infectious laryngotracheitis virus was not detected by PCR. Newcastle disease virus (NDV) was not detected by PCR, but variable levels of anti-NDV HI antibody titres shows possible exposure to virulent strains or poor vaccine take, or both. For the burgeoning-intensive industry in Ethiopia, this study highlights several circulating infectious respiratory pathogens that can impact on poultry welfare and productivity.
Collapse
Affiliation(s)
- S Hutton
- Institute of Infection and Global Health, School of Veterinary Science, University of Liverpool, Leahurst Campus, Neston, Cheshire, CH64 7TE, UK
| | - J Bettridge
- Institute of Infection and Global Health, School of Veterinary Science, University of Liverpool, Leahurst Campus, Neston, Cheshire, CH64 7TE, UK
| | - R Christley
- Institute of Infection and Global Health, School of Veterinary Science, University of Liverpool, Leahurst Campus, Neston, Cheshire, CH64 7TE, UK
- NIHR Health Protection Research Unit in Emerging and Zoonotic Infections, Liverpool, UK
| | - T Habte
- Ethiopian Institute of Agricultural Research, Debre Zeit, Ethiopia
| | - K Ganapathy
- Institute of Infection and Global Health, School of Veterinary Science, University of Liverpool, Leahurst Campus, Neston, Cheshire, CH64 7TE, UK.
| |
Collapse
|
35
|
Franzo G, Tucciarone CM, Blanco A, Nofrarías M, Biarnés M, Cortey M, Majó N, Catelli E, Cecchinato M. Effect of different vaccination strategies on IBV QX population dynamics and clinical outbreaks. Vaccine 2016; 34:5670-5676. [PMID: 27670071 PMCID: PMC7173296 DOI: 10.1016/j.vaccine.2016.09.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 09/05/2016] [Accepted: 09/09/2016] [Indexed: 12/16/2022]
Abstract
Two large scale molecular epidemiology studies performed in Italy and Spain. The population dynamics trends differed between the two countries. Relevant association between changes in vaccination strategies and viral population. Strong association between viral population dynamics and outbreak frequency. Hill’s criteria for causation were accomplished.
The extreme variability and rapid evolution of Infectious bronchitis virus (IBV) has always represented the key challenge for its control because of the limited cross-protection among different strains. Several experimental trials have proven a broadening of the protection spectrum when animals are vaccinated with multiple genotypes. Nevertheless, the conditions of vaccine administration in field are so different that the generalization of experimental results is, at least, questionable. In the present study a large scale epidemiological-phylodynamic approach was used to reconstruct the demographic history of the major field genotype (i.e. the QX one) circulating in Italy and Spain. These two countries were selected because, even if they share a comparable epidemiological scenario, the implemented vaccination protocols did not vary in Spain while changed dramatically in Italy over the time period considered. One hundred and ninety-five Italian and 98 Spanish non-recombinant sequences of the hyper-variable region of the S1 gene obtained between 2012 and 2016 were analyzed using a serial coalescent-based approach to reconstruct viral population history over time. While the IBV QX population dynamics remained constant in Spain, a much more complex pattern was evidenced in Italy; both in terms of viral population size and clinical outbreak frequency. Remarkably, a strong association with changes in vaccination strategies was recognized. This allowed demonstrating, by accomplishing all Hill’s criteria for causation, the cause-effect relationship between the vaccine administration/withdrawal and the variation in viral population dynamics and, above all, IBV related outbreaks. Thus, a robust confirmation about the efficacy of IBV vaccination in field conditions was provided. Additionally, the history herein reported testifies the primary importance of rigorously planning not only the intervention strategies but also their monitoring and evaluation.
Collapse
Affiliation(s)
- Giovanni Franzo
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell'Università 16, 35020 Legnaro (PD), Italy.
| | - Claudia Maria Tucciarone
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell'Università 16, 35020 Legnaro (PD), Italy
| | - Angela Blanco
- CESAC-Centre de Sanitat Avícola de Catalunya i Aragó, Ctra. Castellvell, s/n, 43206 Reus, Spain
| | - Miquel Nofrarías
- Centre de Recerca en Sanitat Animal, CReSA, UAB-IRTA, Campus de la UAB, edifici CReSA, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
| | - Mar Biarnés
- CESAC-Centre de Sanitat Avícola de Catalunya i Aragó, Ctra. Castellvell, s/n, 43206 Reus, Spain
| | - Marti Cortey
- Centre de Recerca en Sanitat Animal, CReSA, UAB-IRTA, Campus de la UAB, edifici CReSA, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
| | - Natàlia Majó
- Centre de Recerca en Sanitat Animal, CReSA, UAB-IRTA, Campus de la UAB, edifici CReSA, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain; Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - Elena Catelli
- Dipartimento di Scienze Mediche Veterinarie, Alma Mater Studiorum - Università di Bologna, Via Tolara di Sopra, 50, 40064 Ozzano dell'Emilia (BO), Italy
| | - Mattia Cecchinato
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell'Università 16, 35020 Legnaro (PD), Italy
| |
Collapse
|
36
|
Zhang L, Wu C, Zhang Z, He Y, Li H, Qin L, Wei T, Mo M, Wei P. [Sequencing and Serologic Identification of S1 Genes of Infectious Bronchitis Viruses Isolated during 2012-2013 in Guangxi Province, China]. Bing Du Xue Bao 2016; 32:62-69. [PMID: 27295885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We wished to ascertain the prevalence as well as the genetic and antigenic variation of infectious bronchitis viruses (IBVs) circulating in the Guangxi Province of China in recent years. The S1 gene of 15 IBV field isolates during 2012-2013 underwent analyses in terms of the similarity of amino-acid sequences, creation of phylogenetic trees, recombination, and serologic identification. Similarities in amino-acid sequences among the 15 isolates of the S1 gene were 54.3%-99.6%, and 43.3%-99.3% among 15 isolates and reference strains. Compared with the vaccine strain H120, except for GX-YL130025, the other 14 isolates showed a lower similarity of amino-acid sequences of the S1 gene (65.1-81.4%). Phylogenetic analyses of the S1 gene suggested that 15 IBV isolates were classified into eight genotypes, with the predominant genotype being new-type II. Recombination analyses demonstrated that the S1 gene of the GX-NN130048 isolate originated from recombination events between vaccine strain 4/91 and a LX4-like isolate. Serotyping results suggested that seven serotypes prevailed during 2012-2013 in Guangxi Province, and that only one isolate was consistent with the vaccine strain H120 in serotype (which has been used widely in recent years). The serotype of recombinant isolate GX-NN130048 was different from those of its parent strains. These results suggested that not only the genotype, but also the serotype of IBV field isolates in Guangxi Province had distinct variations, and that increasing numbers of genotypes and serotypes are in circulation. We showed that recombination events can lead to the emergence of new serotypes. Our study provides new evidence for understanding of the molecular mechanisms of IBV variations, and the development of new vaccines against IBVs.
Collapse
|
37
|
Xu Y, Zhang T, Xu Q, Han Z, Liang S, Shao Y, Ma D, Liu S. Differential modulation of avian β-defensin and Toll-like receptor expression in chickens infected with infectious bronchitis virus. Appl Microbiol Biotechnol 2015; 99:9011-24. [PMID: 26142390 PMCID: PMC7080159 DOI: 10.1007/s00253-015-6786-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 06/14/2015] [Accepted: 06/19/2015] [Indexed: 12/20/2022]
Abstract
The host innate immune response either clears invading viruses or allows the adaptive immune system to establish an effective antiviral response. In this study, both pathogenic (passage 3, P3) and attenuated (P110) infectious bronchitis virus (IBV) strains were used to study the immune responses of chicken to IBV infection. Expression of avian β-defensins (AvBDs) and Toll-like receptors (TLRs) in 16 tissues of chicken were compared at 7 days PI. The results showed that P3 infection upregulated the expression of AvBDs, including AvBD2, 4, 5, 6, 9, and 12, while P110 infection downregulated the expression of AvBDs, including AvBD3, 4, 5, 6, and 9 in most tissues. Meanwhile, the expression level of several TLRs showed a general trend of upregulation in the tissues of P3-infected chickens, while they were downregulated in the tissues of P110-infected chickens. The result suggested that compared with the P110 strain, the P3 strain induced a more pronounced host innate immune response. Furthermore, we observed that recombinant AvBDs (including 2, 6, and 12) demonstrated obvious anti-viral activity against IBV in vitro. Our findings contribute to the proposal that IBV infection induces an increase in the messenger RNA (mRNA) expression of some AvBDs and TLRs, which suggests that AvBDs may play significant roles in the resistance of chickens to IBV replication.
Collapse
Affiliation(s)
- Yang Xu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Tingting Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Qianqian Xu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Zongxi Han
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, 150001, People's Republic of China
| | - Shuling Liang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Yuhao Shao
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, 150001, People's Republic of China
| | - Deying Ma
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
| | - Shengwang Liu
- Division of Avian Infectious Diseases, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, 150001, People's Republic of China.
| |
Collapse
|
38
|
Bande F, Arshad SS, Hair Bejo M, Moeini H, Omar AR. Progress and challenges toward the development of vaccines against avian infectious bronchitis. J Immunol Res 2015; 2015:424860. [PMID: 25954763 PMCID: PMC4411447 DOI: 10.1155/2015/424860] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Revised: 03/20/2015] [Accepted: 03/23/2015] [Indexed: 12/03/2022] Open
Abstract
Avian infectious bronchitis (IB) is a widely distributed poultry disease that has huge economic impact on poultry industry. The continuous emergence of new IBV genotypes and lack of cross protection among different IBV genotypes have been an important challenge. Although live attenuated IB vaccines remarkably induce potent immune response, the potential risk of reversion to virulence, neutralization by the maternal antibodies, and recombination and mutation events are important concern on their usage. On the other hand, inactivated vaccines induce a weaker immune response and may require multiple dosing and/or the use of adjuvants that probably have potential safety risks and increased economic burdens. Consequently, alternative IB vaccines are widely sought. Recent advances in recombinant DNA technology have resulted in experimental IB vaccines that show promise in antibody and T-cells responses, comparable to live attenuated vaccines. Recombinant DNA vaccines have also been enhanced to target multiple serotypes and their efficacy has been improved using delivery vectors, nanoadjuvants, and in ovo vaccination approaches. Although most recombinant IB DNA vaccines are yet to be licensed, it is expected that these types of vaccines may hold sway as future vaccines for inducing a cross protection against multiple IBV serotypes.
Collapse
Affiliation(s)
- Faruku Bande
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
- Department of Veterinary Services, Ministry of Animal Health and Fisheries Development, PMB 2109, Usman Faruk Secretariat, Sokoto 840221, Sokoto State, Nigeria
| | - Siti Suri Arshad
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
| | - Mohd Hair Bejo
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
- Laboratory of Vaccine and Immunotherapeutics, Institute of Bioscience, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
| | - Hassan Moeini
- Department of Virus-Associated Tumours (F100), German Cancer Research Centre, Im Neuenheimer Feld 242, 69120 Heidelberg, Germany
| | - Abdul Rahman Omar
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
| |
Collapse
|
39
|
Kjærup RM, Dalgaard TS, Norup LR, Hamzic E, Sørensen P, Juul-Madsen HR. Characterization of cellular and humoral immune responses after IBV infection in chicken lines differing in MBL serum concentration. Viral Immunol 2014; 27:529-42. [PMID: 25343382 PMCID: PMC4259184 DOI: 10.1089/vim.2014.0088] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Chickens from two inbred lines selected for high (L10H) or low (L10L) mannose-binding lectin (MBL) serum concentrations were infected with infectious bronchitis virus (IBV), and innate as well as adaptive immunological parameters were measured throughout the experimental period. Chickens with high MBL serum concentrations were found to have less viral load in the trachea than chickens with low MBL serum concentrations indicating that these chickens were less severely affected by the infection. This study is the first to show that MBL expression is present in the lungs of healthy chickens and that the expression is upregulated at days 3 postinfection (p.i.) in L10H chickens. Furthermore, in the liver of infected chickens, the MBL expression was upregulated at day 7 p.i., despite the fact that the MBL serum concentrations were decreased below baseline at that time point. The number of TCRγδ+CD8α+ cells in the blood of noninfected chickens increased from week 0 to 3 p.i. However, the number of cells was higher in L10H chickens than in L10L chickens throughout the experiment. No increase was observed in the number of TCRγδ+CD8α+ cells in the blood of the infected L10H and L10L chickens. The numbers of B cells at week 3 p.i. were higher for noninfected L10L chickens than for the other chickens. No differences were observed between the infected and noninfected L10H chickens or between the infected L10H and L10L chickens. Furthermore, at week 3 p.i., the number of monocytes was higher in infected and noninfected L10H chickens than in the infected and noninfected L10L chickens. Thus, these results indicate that MBL is produced locally and may be involved in the regulation of the cellular immune response after an IBV infection. However, MBL did not appear to influence the humoral immune response after IBV infection in this study.
Collapse
Affiliation(s)
| | | | | | - Edin Hamzic
- AgroParisTech, UMR1313 Génétique Animale et Biologie Integrative, Paris, France
- INRA, UMR1313 Génétique Animale et Biologie Intégrative, Jouy-en-Josas, France
| | - Poul Sørensen
- Department of Molecular Biology and Genetics, Aarhus University, Tjele, Denmark
| | | |
Collapse
|
40
|
Chand N, Naz S, Khan A, Khan S, Khan RU. Performance traits and immune response of broiler chicks treated with zinc and ascorbic acid supplementation during cyclic heat stress. Int J Biometeorol 2014; 58:2153-2157. [PMID: 24676574 DOI: 10.1007/s00484-014-0815-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Revised: 02/22/2014] [Accepted: 03/03/2014] [Indexed: 06/03/2023]
Abstract
This research was conducted to investigate the effect of supplementation of zinc (Zn) and ascorbic acid (AA) in heat-stressed broilers. A total of 160-day-old broiler chicks of approximately the same weight and appearance were divided into four treatment groups (control, T1, T2, and T3). Control group was fed a standard diet without any supplementation. T1 was supplemented with Zn at the rate of 60 mg/kg of feed, T2 was supplemented with 300 mg/kg of feed AA, and T3 was supplemented with combination of Zn and AA. From week 3 to 5, heat stress environment was provided at the rate of 12 h at 25 °C, 3 h at 25 to 34 °C, 6 h at 34 °C, and 3 h at 34 to 25 °C daily. The results revealed that feed intake, body weight and feed conversion ratio (FCR), and weight of thymus, spleen, and bursa of Fabricius improved significantly (P < 0.05) in T3 compared to the other treatments. Antibody titer against Newcastle disease (ND), infectious bursal disease (IBD), and infectious bronchitis (IB) increased significantly (P < 0.05) in T2 and T3 groups. However, total leucocytes count, lymphocytes, and monocytes increased (P < 0.05) in all treated groups compared to control. The results indicated that the supplementation of Zn or AA alone or in combination improved the performance and immune status of broilers reared under heat stress.
Collapse
Affiliation(s)
- Naila Chand
- Faculty of Animal Husbandry & Veterinary Sciences, The University of Agriculture, Peshawar, Pakistan
| | | | | | | | | |
Collapse
|
41
|
Auerbach MI, Glünder G, Weber RM. Varying antibody responses of laying hens housed in an aviary system and in furnished cages. Berl Munch Tierarztl Wochenschr 2014; 127:267-273. [PMID: 25080819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Antibody titers after vaccination against Infectious Bronchitis Virus (IBV), Newcastle Disease Virus (NDV) and after natural infection with Campylobacter were analyzed in five trials with Lohmann Silver laying hens kept in two different housing systems. In these studies it could be demonstrated that antibodies against IBV and Campylobacter were in 4 out of 5 respectively in 2 out of 5 trials significantly higher in hens housed in an aviary system compared to those kept in furnished cages. The opposite trend was observed for antibodies against NDV which were on average significantly higher in cages. The mean mortality rate was slightly higher in hens kept in the aviary system compared to the cage system.
Collapse
|
42
|
Dar A, Tikoo S, Potter A, Babiuk LA, Townsend H, Gerdts V, Mutwiri G. CpG-ODNs induced changes in cytokine/chemokines genes expression associated with suppression of infectious bronchitis virus replication in chicken lungs. Vet Immunol Immunopathol 2014; 160:209-17. [PMID: 25012000 PMCID: PMC7112892 DOI: 10.1016/j.vetimm.2014.05.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 05/07/2014] [Accepted: 05/12/2014] [Indexed: 12/23/2022]
Abstract
The process of virus replication in host cells is greatly influenced by the set of cytokines, chemokines and antiviral substances activated as a result of host–virus interaction. Alteration of cytokines profiles through manipulation of the innate immune system by innate immune stimulants may be helpful in inhibiting virus replication in otherwise permissive cells. The aim of present studies was to characterize innate immune responses capable of inhibiting infectious bronchitis virus (IBV) replication in chicken lungs after in ovo administration of CpG ODN. In our experiments, CpG ODN 2007 or PBS solution was injected on 18th embryonic day (ED) via the chorioallontoic route. CpG ODN and PBS inoculated embryos were challenged with virulent IBV on the 19th ED. Lung tissue samples from experimental chicks were analysed for cytokines/chemokines gene expression at 24 h, 48 h, and 72 h, post infection. Our data showed significant differential up-regulation of IFN-γ, IL-8 (CXCLi2) and MIP-1β genes and suppression of IL-6 gene expression being associated with inhibition of IBV replication in lungs tissue retrieved from embryos pre-treated with CpG ODN. It is expected that understanding of the innate immune modulation of target tissues by the virus and innate immune stimulants will be helpful in identification of valuable targets for development of novel, safe, effective and economical control strategies against IBV infection in chickens.
Collapse
Affiliation(s)
- Arshud Dar
- Vaccine and Infectious Disease Organization-International Vaccine Center, University of Saskatchewan, SK, Saskatoon, SK, Canada S7N 5E3.
| | - Suresh Tikoo
- Vaccine and Infectious Disease Organization-International Vaccine Center, University of Saskatchewan, SK, Saskatoon, SK, Canada S7N 5E3
| | - Andy Potter
- Vaccine and Infectious Disease Organization-International Vaccine Center, University of Saskatchewan, SK, Saskatoon, SK, Canada S7N 5E3
| | - Lorne A Babiuk
- University of Alberta, 2-51 South Academic Building, Edmonton, AB, Canada T6G 2G7
| | - Hugh Townsend
- Vaccine and Infectious Disease Organization-International Vaccine Center, University of Saskatchewan, SK, Saskatoon, SK, Canada S7N 5E3
| | - Volker Gerdts
- Vaccine and Infectious Disease Organization-International Vaccine Center, University of Saskatchewan, SK, Saskatoon, SK, Canada S7N 5E3
| | - George Mutwiri
- Vaccine and Infectious Disease Organization-International Vaccine Center, University of Saskatchewan, SK, Saskatoon, SK, Canada S7N 5E3
| |
Collapse
|
43
|
Pohjola LK, Ek-Kommonen SC, Tammiranta NE, Kaukonen ES, Rossow LM, Huovilainen TA. Emergence of avian infectious bronchitis in a non-vaccinating country. Avian Pathol 2014; 43:244-8. [PMID: 24766156 PMCID: PMC7114077 DOI: 10.1080/03079457.2014.913770] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 03/17/2014] [Indexed: 11/19/2022]
Abstract
Infectious bronchitis virus (IBV) is a coronavirus of the chicken. It is a highly contagious pathogen and in addition to causing respiratory and kidney diseases can affect the reproductive organs, resulting in loss of production and poor egg quality. Despite the global distribution of IBV, Finland has been free of clinical cases for almost three decades. Since April 2011, outbreaks involving genotypes QX, D274-like and 4/91-like have occurred in southern Finland. The clinical samples studied were submitted to the Finnish Food Safety Authority Evira from different regions of Finland during 2011 to 2013 and originated from a voluntary health monitoring programme, a national survey for avian influenza and diagnostic specimens from both commercial poultry production and hobby flocks. The sources of the infections are not known, but strains D274 and 4/91 are widely used in vaccines elsewhere.
Collapse
Affiliation(s)
- Leena K. Pohjola
- Department of Production Animal Medicine, Faculty of Veterinary Medicine, University of Helsinki, Saarentaus, Finland
| | | | | | | | - Laila M. Rossow
- Production Animal and Wildlife Health, Finnish Food Safety Authority Evira, Helsinki, Finland
| | | |
Collapse
|
44
|
Qin LL, Li M, Sun R, Wu ZJ, He K, Mo ML, Wei TC, Wei P. [Genotypes and serotypes of avian infectious bronchitis viruses isolated during 2009-2011 in Guangxi, China]. Bing Du Xue Bao 2014; 30:162-170. [PMID: 24923170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In order to investigate the prevalence and track genetic and antigenic evolutions of infectious bronchitis virus (IBV) and their prevalence in Guangxi, China since 1985, gene amplification and sequencing and virus neutralization (VN) test on chicken embryo tracheal organ cultures were used in genotyping and serotyping of 28 IBV isolates during 2009-2011 in Guangxi. The results of N gene sequencing and comparison showed that the 28 isolates and reference strains were classified into three groups, and most isolates belonged to group Ill, while the isolates in 1985-2008 belonged to groups IV and II. The data of VN test indicated that the 28 isolates belonged to 6 serotypes; among them, 71. 4% belonged to serotypes 1, 2, and 3, and 11 (39.3%) shared the same serotype with the current vaccine strains. Given the data of our previous study, it is found that prevalent serotypes and their proportions varied in different areas of Guangxi and during different periods. These data lay a good foundation for developing an oil-emulsified inactivated polyvalent vaccine containing local dominant serotypes for the effective prevention and control of infectious bronchitis.
Collapse
|
45
|
Gurjar RS, Gulley SL, van Ginkel FW. Cell-mediated immune responses in the head-associated lymphoid tissues induced to a live attenuated avian coronavirus vaccine. Dev Comp Immunol 2013; 41:715-722. [PMID: 23948147 PMCID: PMC7103220 DOI: 10.1016/j.dci.2013.08.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 08/01/2013] [Accepted: 08/02/2013] [Indexed: 06/02/2023]
Abstract
Humoral immunity is important for controlling viral diseases of poultry, but recent studies have indicated that cytotoxic T cells also play an important role in the immune response to infectious bronchitis virus (IBV). To better understand the cell mediated immune responses to IBV in the mucosal and systemic immune compartments chickens were ocularly vaccinated with IBV. This induced a lymphocyte expansion in head-associated lymphoid tissues (HALT) and to a lesser extent in the spleen, followed by a rapid decline, probably due to homing of lymphocytes out of these organs and contraction of the lymphocyte population. This interpretation was supported by observations that changes in mononuclear cells were mirrored by that in CD3(+)CD44(+) T cell abundance, which presumably represent T effector cells. Increased interferon gamma (IFN-γ) expression was observed in the mucosal immune compartment, i.e., HALT, after primary vaccination, but shifted to the systemic immune compartment after boosting. In contrast, the expression of cytotoxicity-associated genes, i.e., granzyme A (GZMA) and perforin mRNA, remained associated with the HALT after boosting. Thus, an Ark-type IBV ocular vaccine induces a central memory IFN-γ response in the spleen while the cytotoxic effector memory response, as measured by GZMA and perforin mRNA expression, remains associated with CALT after boosting.
Collapse
Affiliation(s)
- Rucha S Gurjar
- Department of Pathobiology, Auburn University, Auburn, AL 36849, USA
| | | | | |
Collapse
|
46
|
Banat GR, Tkalcic S, Dzielawa JA, Jackwood MW, Saggese MD, Yates L, Kopulos R, Briles W, Collisson EW. Association of the chicken MHC B haplotypes with resistance to avian coronavirus. Dev Comp Immunol 2013; 39:430-437. [PMID: 23178407 PMCID: PMC7103219 DOI: 10.1016/j.dci.2012.10.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 10/18/2012] [Accepted: 10/19/2012] [Indexed: 06/01/2023]
Abstract
Clinical respiratory illness was compared in five homozygous chicken lines, originating from homozygous B2, B8, B12 and B19, and heterozygous B2/B12 birds after infection with either of two strains of the infectious bronchitis virus (IBV). All chickens used in these studies originated from White Leghorn and Ancona linages. IBV Gray strain infection of MHC homozygous B12 and B19 haplotype chicks resulted in severe respiratory disease compared to chicks with B2/B2 and B5/B5 haplotypes. Demonstrating a dominant B2 phenotype, B2/B12 birds were also more resistant to IBV. Respiratory clinical illness in B8/B8 chicks was severe early after infection, while illness resolved similar to the B5 and B2 homozygous birds. Following M41 strain infection, birds with B2/B2 and B8/B8 haplotypes were again more resistant to clinical illness than B19/B19 birds. Real time RT-PCR indicated that infection was cleared more efficiently in trachea, lungs and kidneys of B2/B2 and B8/B8 birds compared with B19/B19 birds. Furthermore, M41 infected B2/B2 and B8/B8 chicks performed better in terms of body weight gain than B19/B19 chicks. These studies suggest that genetics of B defined haplotypes might be exploited to produce chicks resistant to respiratory pathogens or with more effective immune responses.
Collapse
Key Words
- ibv, infectious bronchitis virus
- mhc, major histocompatibility complex
- m41, massachusetts 41
- rt-pcr, reverse transcription polymerase chain reaction
- sars, severe acute respiratory syndrome
- rsv, rous sarcoma virus
- mdv, marek’s disease virus
- spf, specific pathogen free
- pi, post infection
- eid50/ml, embryo infectious dose 50 per ml
- niu, northern illinois university
- pbs, phosphate buffer saline
- rna, ribonucleic acid
- 5′ utr, 5′ untranslated region
- bp, base pairs
- anova, analysis of variance
- ark, arkansas
- ctl, cytotoxic t lymphocyte
- aiv, avian influenza virus
- ifnγ, interferon gamma
- poly i:c, polyinosinic polycytidylic acid
- usda, united states department of agriculture
- nifa, national institute of food and agriculture
- infectious bronchitis virus
- chicken mhc b haplotype
- clinical illness
- infection of trachea
- lungs and kidneys
- resistant
Collapse
Affiliation(s)
- Ghida R. Banat
- College of Veterinary Medicine, Western University of Health Sciences, 309 E. 2nd St., Pomona, CA 91766-1854, USA
| | - Suzana Tkalcic
- College of Veterinary Medicine, Western University of Health Sciences, 309 E. 2nd St., Pomona, CA 91766-1854, USA
| | - Jennifer A. Dzielawa
- College of Veterinary Medicine, Texas A&M University, College Station, TX 77845, USA
| | - Mark W. Jackwood
- Poultry Diagnostic Research Center, Department of Population Health, College of Veterinary Medicine, University of Georgia, 953 College Station Road, Athens, GA 30602-4875, USA
| | - Miguel D. Saggese
- College of Veterinary Medicine, Western University of Health Sciences, 309 E. 2nd St., Pomona, CA 91766-1854, USA
| | - Linda Yates
- Department of Biological Sciences, Northern Illinois University, 415 Montgomery Hall, DeKalb, IL 60115-2861, USA
| | - Renee Kopulos
- Department of Biological Sciences, Northern Illinois University, 415 Montgomery Hall, DeKalb, IL 60115-2861, USA
| | - W.E. Briles
- Department of Biological Sciences, Northern Illinois University, 415 Montgomery Hall, DeKalb, IL 60115-2861, USA
| | - Ellen W. Collisson
- College of Veterinary Medicine, Western University of Health Sciences, 309 E. 2nd St., Pomona, CA 91766-1854, USA
- College of Veterinary Medicine, Texas A&M University, College Station, TX 77845, USA
| |
Collapse
|
47
|
Zhou YS, Zhang Y, Wang HN, Fan WQ, Yang X, Zhang AY, Zeng FY, Zhang ZK, Cao HP, Zeng C. Establishment of reverse genetics system for infectious bronchitis virus attenuated vaccine strain H120. Vet Microbiol 2013; 162:53-61. [PMID: 22999521 PMCID: PMC7117355 DOI: 10.1016/j.vetmic.2012.08.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Revised: 08/12/2012] [Accepted: 08/13/2012] [Indexed: 12/11/2022]
Abstract
Infectious bronchitis virus (IBV) strain H120 was successfully rescued as infectious clone by reverse genetics. Thirteen 1.5-2.8 kb fragments contiguously spanning the virus genome were amplified and cloned into pMD19-T. Transcription grade complete length cDNA was acquired by a modified "No See'm" ligation strategy, which employed restriction enzyme Bsa I and BsmB I and ligated more than two fragments in one T4 ligase reaction. The full-length genomic cDNA was transcribed and its transcript was transfected by electroporation into BHK-21 together with the transcript of nucleocapsid gene. At 48 h post transfection, the medium to culture the transfected BHK-21 cells was harvested and inoculated into 10-days old SPF embryonated chicken eggs (ECE) to replicate the rescued virus. After passage of the virus in ECE five times, the rescued H120 virus (R-H120) was successfully recovered. R-H120 was subsequently identified to possess the introduced silent mutation site in its genome. Some biological characteristics of R-H120 such as growth curve, EID50 and HA titers, were tested and all of them were very similar to its parent strain H120. In addition, both R-H120 and H120 induced a comparable titer of HA inhibition (HI) antibody in immunized chickens and also provided up to 85% of immune protection to the chickens that were challenged with Mass41 IBV strain. The present study demonstrated that construction of infectious clone from IBV vaccine strain H120 is possible and IBV-H120 can be use as a vaccine vector for the development of novel vaccines through molecular recombination and the modified reverse genetics approach.
Collapse
Affiliation(s)
- Ying Shun Zhou
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - Yi Zhang
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
- Sichuan Center for Animal Disease Control and Prevention, Chengdu 610041, China
| | - Hong Ning Wang
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - Wen Qiao Fan
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - Xin Yang
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - An Yun Zhang
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - Fan Ya Zeng
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - Zhi Kun Zhang
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - Hai Peng Cao
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| | - Cheng Zeng
- School of Life Science, Sichuan University, Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, “985 Project” Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Chengdu, Sichuan 610064, China
| |
Collapse
|
48
|
Li LJ, Li MY, Li YT, Feng JJ, Hao FQ, Zhang L. Adjuvant activity of Sargassum pallidum polysaccharides against combined Newcastle disease, infectious bronchitis and avian influenza inactivated vaccines. Mar Drugs 2012; 10:2648-60. [PMID: 23342387 PMCID: PMC3528116 DOI: 10.3390/md10122648] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 11/07/2012] [Accepted: 11/13/2012] [Indexed: 11/17/2022] Open
Abstract
This study evaluates the effects of Sargassum pallidum polysaccharides (SPP) on the immune responses in a chicken model. The adjuvanticity of Sargassum pallidum polysaccharides in Newcastle disease (ND), infectious bronchitis (IB) and avian influenza (AI) was investigated by examining the antibody titers and lymphocyte proliferation following immunization in chickens. The chickens were administrated combined ND, IB and AI inactivated vaccines containing SPP at 10, 30 and 50 mg/mL, using an oil adjuvant vaccine as a control. The ND, IB and AI antibody titers and the lymphocyte proliferation were enhanced at 30 mg/mL SPP. In conclusion, an appropriate dose of SPP may be a safe and efficacious immune stimulator candidate that is suitable for vaccines to produce early and persistent prophylaxis.
Collapse
Affiliation(s)
- Li-Jie Li
- School of Medicinal and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, Shandong 266003, China
- Shandong Sinder Technology Co., Ltd., Qingdao, Shandong 266061, China; (M.-Y.L.); (J.-J.F.); (F.-Q.H.); (L.Z.)
| | - Ming-Yi Li
- Shandong Sinder Technology Co., Ltd., Qingdao, Shandong 266061, China; (M.-Y.L.); (J.-J.F.); (F.-Q.H.); (L.Z.)
| | - Yan-Tuan Li
- School of Medicinal and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, Shandong 266003, China
| | - Jing-Jing Feng
- Shandong Sinder Technology Co., Ltd., Qingdao, Shandong 266061, China; (M.-Y.L.); (J.-J.F.); (F.-Q.H.); (L.Z.)
| | - Feng-Qiang Hao
- Shandong Sinder Technology Co., Ltd., Qingdao, Shandong 266061, China; (M.-Y.L.); (J.-J.F.); (F.-Q.H.); (L.Z.)
| | - Lun Zhang
- Shandong Sinder Technology Co., Ltd., Qingdao, Shandong 266061, China; (M.-Y.L.); (J.-J.F.); (F.-Q.H.); (L.Z.)
| |
Collapse
|
49
|
Wang XY, Li M, Wei P, Chen QY, Wei ZJ, Mo ML, Wei TC. [Evaluation of antigenic relationship of Guangxi isolates of infectious bronchitis virus]. Bing Du Xue Bao 2012; 28:621-627. [PMID: 23367560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Monovalent antisera of 3 vaccine strains and 7 representative field isolates were prepared based on the comparison of genetic diversity of the hypervariable region I of S1 gene (HVR I from 3 infectious bronchitis (IB) vaccine strains (H120, Ma5 and 4/91) ,one reference strain M41 and 26 IB field isolates. These 30 strains were classified in 7 different genotypes, respectively. Virus-neutralizing test on tracheal organ cultures (TOC) with chicken embryo were used to evaluate relatedness values of the antigenicity based on the antibody titer, to analyze the antigenic relationships between the isolates and vaccine strains, as well as to determine the serotypes of 26 IB viruses isolated from the field in Guangxi between 1985 and 2008. The results showed 30 strains were classified into 7 distinct serotypes and there were two predominant serotypes within the 26 isolates, serotypes 1 (totally 13 isolates) and serotype 2 (totally 5 isolates), respectively. In addition, there were some differences observed between the results of serotyping and the genotyping (including the S1, N, M and 3'UTR). The results of the study demonstrated that there were different predominant serotypes and multiple serotypes of IBV circulated in Guangxi in recent years, antigenic variation existed between Guangxi field isolates and vaccine strains.
Collapse
Affiliation(s)
- Xiu-Ying Wang
- Institute for Poultry Science and Health, Guangxi University, Nanning 530005, China
| | | | | | | | | | | | | |
Collapse
|
50
|
Hong SM, Kwon HJ, Kim IH, Mo ML, Kim JH. Comparative genomics of Korean infectious bronchitis viruses (IBVs) and an animal model to evaluate pathogenicity of IBVs to the reproductive organs. Viruses 2012; 4:2670-83. [PMID: 23202499 PMCID: PMC3509667 DOI: 10.3390/v4112670] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 10/18/2012] [Accepted: 10/18/2012] [Indexed: 11/17/2022] Open
Abstract
The K-I and nephropathogenic K-II genotypes of infectious bronchitis virus (IBV) have been isolated since 1995 and 1990, respectively, in Korea and commercial inactivated oil-emulsion vaccines containing KM91 (K-II type) and Massachusetts 41 strains have been used in the field. To date, genomic analyses of Korean IBV strains and animal models to test the pathogenicity of Korean IBVs to the reproductive organs have been rare. In the present study, comparative genomics of SNU8067 (K-I type) and KM91 IBVs was performed, and an animal model to test the pathogenicity of SNU8067 was established and applied to vaccine efficacy test. The genome sizes of SNU8067 (27,708 nt) and KM91 (27,626 nt) were slightly different and the nucleotide and amino acid identities of the S1 (79%, 77%), 3a (65%, 52%), and 3b (81%, 72%) genes were lower than those of other genes (94%-97%, 92%-98%). A recombination analysis revealed that SNU8067 was a recombinant virus with a KM91-like backbone except S1, 3a, and 3b genes which might be from an unknown virus. An SNU8067 infection inhibited formation of hierarchal ovarian follicles (80%) and oviduct maturation (50%) in the control group, whereas 70% of vaccinated chickens were protected from lesions.
Collapse
Affiliation(s)
- Seung-Min Hong
- Laboratory of Avian Diseases, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea; (S.-M.H.); (I.-H.K.); (M.-L.M.)
| | - Hyuk-Joon Kwon
- Reseach Institute for Veterinary Science, College of Veterinary Medicine, BK21 for Veterinary Science, Seoul National University, Seoul 151-742, Korea;
| | - Il-Hwan Kim
- Laboratory of Avian Diseases, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea; (S.-M.H.); (I.-H.K.); (M.-L.M.)
| | - Mei-Lan Mo
- Laboratory of Avian Diseases, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea; (S.-M.H.); (I.-H.K.); (M.-L.M.)
| | - Jae-Hong Kim
- Laboratory of Avian Diseases, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea; (S.-M.H.); (I.-H.K.); (M.-L.M.)
- Reseach Institute for Veterinary Science, College of Veterinary Medicine, BK21 for Veterinary Science, Seoul National University, Seoul 151-742, Korea;
| |
Collapse
|