1
|
Lv Z, Zhang X, Zhao K, Du L, Wang X, Chu Y, Huang T. Co-immunization with DNA vaccines encoding yidR and IL-17 augments host immune response against Klebsiella pneumoniae infection in mouse model. Virulence 2024; 15:2345019. [PMID: 38656137 DOI: 10.1080/21505594.2024.2345019] [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: 08/10/2023] [Accepted: 04/15/2024] [Indexed: 04/26/2024] Open
Abstract
Klebsiella pneumoniae is an important gram-negative bacterium that causes severe respiratory and healthcare-associated infections. Although antibiotic therapy is applied to treat severe infections caused by K. pneumoniae, drug-resistant isolates pose a huge challenge to clinical practices owing to adverse reactions and the mismanagement of antibiotics. Several studies have attempted to develop vaccines against K. pneumoniae, but there are no licensed vaccines available for the control of K. pneumoniae infection. In the current study, we constructed a novel DNA vaccine, pVAX1-YidR, which encodes a highly conserved virulence factor YidR and a recombinant expression plasmid pVAX1-IL-17 encoding Interleukin-17 (IL-17) as a molecular adjuvant. Adaptive immune responses were assessed in immunized mice to compare the immunogenicity of the different vaccine schemes. The results showed that the targeted antigen gene was expressed in HEK293T cells using an immunofluorescence assay. Mice immunized with pVAX1-YidR elicited a high level of antibodies, induced strong cellular immune responses, and protected mice from K. pneumoniae challenge. Notably, co-immunization with pVAX1-YidR and pVAX1-IL-17 significantly augmented host adaptive immune responses and provided better protection against K. pneumoniae infections in vaccinated mice. Our study demonstrates that combined DNA vaccines and molecular adjuvants is a promising strategy to develop efficacious antibacterial vaccines against K. pneumoniae infections.
Collapse
Affiliation(s)
- Zheng Lv
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, School of pharmacy, Chengdu University, Chengdu, China
| | - Xuan Zhang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, School of pharmacy, Chengdu University, Chengdu, China
| | - Kelei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, School of pharmacy, Chengdu University, Chengdu, China
| | - Lianming Du
- Institute for Advanced Study, Chengdu University, Chengdu, China
| | - Xinrong Wang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, School of pharmacy, Chengdu University, Chengdu, China
| | - Yiwen Chu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, School of pharmacy, Chengdu University, Chengdu, China
| | - Ting Huang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, School of pharmacy, Chengdu University, Chengdu, China
- Antiinfective Agent Creation Engineering Research Centre of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of pharmacy, Chengdu University, Chengdu, China
| |
Collapse
|
2
|
Abdulabbas HT, Mohammad Ali AN, Farjadfar A, Arabfard M, Najafipour S, Kouhpayeh A, Ghasemian A, Behmard E. Design of a novel multi-epitope vaccine candidate against Chlamydia trachomatis using structural and nonstructural proteins: an immunoinformatics study. J Biomol Struct Dyn 2024; 42:4356-4369. [PMID: 37288800 DOI: 10.1080/07391102.2023.2220812] [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: 03/12/2023] [Accepted: 05/28/2023] [Indexed: 06/09/2023]
Abstract
Chlamydia trachomatis (C. trachomatis) is an obligate intracellular bacterium which causes eye and sexually transmitted infections. During pregnancy, the bacterium is associated with preterm complications, low weight of neonates, fetal demise and endometritis leading to infertility. The aim of our study was design of a multi-epitope vaccine (MEV) candidate against C. trachomatis. After protein sequence adoption from the NCBI, potential epitopes toxicity, antigenicity, allergenicity, MHC-I and MHC-II binding, cytotoxic T lymphocytes (CTLs), Helper T lymphocytes (HTLs) and interferon-γ (IFN-γ)- induction were predicted. The adopted epitopes were fused together using appropriate linkers. In the next step, the MEV structural mapping and characterization, three-dimensional (3D) structure homology modeling and refinement were also performed. The MEV candidate interaction with the toll-like receptor 4 (TLR4) was also docked. The immune responses simulation was assessed using the C-IMMSIM server. Molecular dynamic (MD) simulation verified the structural stability of the TLR4-MEV complex. The Molecular Mechanics Poisson-Boltzmann Surface Area (MMPBSA) approach demonstrated the MEV high affinity of binding to the TLR4, MHC-I and MHC-II. The MEV construct was also stable and water soluble and had enough antigenicity and lacked allergenicity with stimulation of T cells and B cells and INF-γ release. The immune simulation confirmed acceptable responses of both the humoral and cellular arms. It is proposed that in vitro and in vivo studies are needed to evaluate the findings of this study.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Hussein T Abdulabbas
- Department of Medical Microbiology, Medical College, Al Muthanna University, Al Muthanna, Iraq
| | | | - Akbar Farjadfar
- Department of medical Biotechnology, Fasa University of Medical Sciences, Fasa, Iran
| | - Masoud Arabfard
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Sohrab Najafipour
- School of Advanced Technologies in Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Amin Kouhpayeh
- Department of Pharmacology, Faculty of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Abdolmajid Ghasemian
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Esmaeil Behmard
- School of Advanced Technologies in Medicine, Fasa University of Medical Sciences, Fasa, Iran
| |
Collapse
|
3
|
Ahmad S, Verli/ H. In silico identification of drug targets and vaccine candidates against Bartonella quintana: a subtractive proteomics approach. Mem Inst Oswaldo Cruz 2024; 119:e230040. [PMID: 38655925 DOI: 10.1590/0074-02760230040] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 02/29/2024] [Indexed: 04/26/2024] Open
Abstract
BACKGROUND The availability of genes and protein sequences for parasites has provided valuable information for drug target identification and vaccine development. One such parasite is Bartonella quintana, a Gram-negative, intracellular pathogen that causes bartonellosis in mammalian hosts. OBJECTIVE Despite progress in understanding its pathogenesis, limited knowledge exists about the virulence factors and regulatory mechanisms specific to B. quintana. METHODS AND FINDINGS To explore these aspects, we have adopted a subtractive proteomics approach to analyse the proteome of B. quintana. By subtractive proteins between the host and parasite proteome, a set of proteins that are likely unique to the parasite but absent in the host were identified. This analysis revealed that out of the 1197 protein sequences of the parasite, 660 proteins are non-homologous to the human host. Further analysis using the Database of Essential Genes predicted 159 essential proteins, with 28 of these being unique to the pathogen and predicted as potential putative targets. Subcellular localisation of the predicted targets revealed 13 cytoplasmic, eight membranes, one periplasmic, and multiple location proteins. The three-dimensional structure and B cell epitopes of the six membrane antigenic protein were predicted. Four B cell epitopes in KdtA and mraY proteins, three in lpxB and BQ09550, whereas the ftsl and yidC proteins were located with eleven and six B cell epitopes, respectively. MAINS CONCLUSIONS This insight prioritises such proteins as novel putative targets for further investigations on their potential as drug and vaccine candidates.
Collapse
Affiliation(s)
- Shabir Ahmad
- Universidade Federal do Rio Grande do Sul, Centro de Biotecnologia, Porto Alegre, RS, Brasil
| | - Hugo Verli/
- Universidade Federal do Rio Grande do Sul, Centro de Biotecnologia, Porto Alegre, RS, Brasil
| |
Collapse
|
4
|
Abstract
Next-generation live vaccines are created by autonomous production of nitrated antigens.
Collapse
Affiliation(s)
- Aditya M Kunjapur
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, USA
| |
Collapse
|
5
|
Hoonakker M, Zariri A, de Brouwer L, David D, Borgman A, Sloots A. An in vitro assay for toxicity testing of Clostridium perfringens type C β-toxin. Front Immunol 2024; 15:1373411. [PMID: 38646535 PMCID: PMC11026656 DOI: 10.3389/fimmu.2024.1373411] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 03/19/2024] [Indexed: 04/23/2024] Open
Abstract
Introduction Veterinary vaccines against Clostridium perfringens type C need to be tested for absence of toxicity, as mandated by pharmacopoeias worldwide. This toxicity testing is required at multiple manufacturing steps and relies on outdated mouse tests that involve severe animal suffering. Clostridium perfringens type C produces several toxins of which the β-toxin is the primary component responsible for causing disease. Here, we describe the successful development of a new cell-based in vitro assay that can address the specific toxicity of the β-toxin. Methods Development of the cell-based assay followed the principle of in vitro testing developed for Cl. septicum vaccines, which is based on Vero cells. We screened four cell lines and selected the THP-1 cell line, which was shown to be the most specific and sensitive for β-toxin activity, in combination with a commercially available method to determine cell viability (MTS assay) as a readout. Results The current animal test is estimated to detect 100 - 1000-fold dilutions of the Cl. perfringens type C non-inactivated antigen. When tested with an active Cl. perfringens type C antigen preparation, derived from a commercial vaccine manufacturing process, our THP-1 cell-based assay was able to detect toxin activity from undiluted to over 10000-fold dilution, showing a linear range between approximately 1000- and 10000-fold dilutions. Assay specificity for the β-toxin was confirmed with neutralizing antibodies and lack of reaction to Cl. perfringens culture medium. In addition, assay parameters demonstrated good repeatability. Conclusions Here, we have shown proof of concept for a THP-1 cell-based assay for toxicity testing of veterinary Cl. perfringens type C vaccines that is suitable for all vaccine production steps. This result represents a significant step towards the replacement of animal-based toxicity testing of this veterinary clostridial antigen. As a next step, assessment of the assay's sensitivity and repeatability and validation of the method will have to be performed in a commercial manufacturing context in order to formally implement the assay in vaccine quality control.
Collapse
Affiliation(s)
| | | | | | | | | | - Arjen Sloots
- Department of Product Characterization and Formulation, Intravacc B.V., Bilthoven, Netherlands
| |
Collapse
|
6
|
Zhang S, Liu G, Zhang Y, Wang C, Xu X, Zhao Y, Xiang Z, Wu W, Yang L, Chen J, Guo A, Chen Y. Investigation of the safety and protective efficacy of an attenuated and marker M. bovis-BoHV-1 combined vaccine in bovines. Front Immunol 2024; 15:1367253. [PMID: 38646533 PMCID: PMC11027501 DOI: 10.3389/fimmu.2024.1367253] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 03/26/2024] [Indexed: 04/23/2024] Open
Abstract
Bovine respiratory disease (BRD) is one of the most common diseases in the cattle industry worldwide; it is caused by multiple bacterial or viral coinfections, of which Mycoplasma bovis (M. bovis) and bovine herpesvirus type 1 (BoHV-1) are the most notable pathogens. Although live vaccines have demonstrated better efficacy against BRD induced by both pathogens, there are no combined live and marker vaccines. Therefore, we developed an attenuated and marker M. bovis-BoHV-1 combined vaccine based on the M. bovis HB150 and BoHV-1 gG-/tk- strain previously constructed in our lab and evaluated in rabbits. This study aimed to further evaluate its safety and protective efficacy in cattle using different antigen ratios. After immunization, all vaccinated cattle had a normal rectal temperature and mental status without respiratory symptoms. CD4+, CD8+, and CD19+ cells significantly increased in immunized cattle and induced higher humoral and cellular immune responses, and the expression of key cytokines such as IL-4, IL-12, TNF-α, and IFN-γ can be promoted after vaccination. The 1.0 × 108 CFU of M. bovis HB150 and 1.0 × 106 TCID50 BoHV-1 gG-/tk- combined strain elicited the most antibodies while significantly increasing IgG and cellular immunity after challenge. In conclusion, the M. bovis HB150 and BoHV-1 gG-/tk- combined strain was clinically safe and protective in calves; the mix of 1.0 × 108 CFU of M. bovis HB150 and 1.0 × 106 TCID50 BoHV-1 gG-/tk- strain was most promising due to its low amount of shedding and highest humoral and cellular immune responses compared with others. This study introduces an M. bovis-BoHV-1 combined vaccine for application in the cattle industry.
Collapse
MESH Headings
- Animals
- Cattle
- Herpesvirus 1, Bovine/immunology
- Vaccines, Combined/immunology
- Vaccines, Combined/administration & dosage
- Vaccines, Attenuated/immunology
- Vaccines, Attenuated/administration & dosage
- Mycoplasma bovis/immunology
- Viral Vaccines/immunology
- Viral Vaccines/administration & dosage
- Viral Vaccines/adverse effects
- Bacterial Vaccines/immunology
- Bacterial Vaccines/administration & dosage
- Bacterial Vaccines/adverse effects
- Cytokines/metabolism
- Antibodies, Viral/blood
- Antibodies, Viral/immunology
- Antibodies, Bacterial/blood
- Antibodies, Bacterial/immunology
- Mycoplasma Infections/prevention & control
- Mycoplasma Infections/veterinary
- Mycoplasma Infections/immunology
- Vaccines, Marker/immunology
- Vaccines, Marker/administration & dosage
- Vaccination/veterinary
- Vaccine Efficacy
- Immunity, Humoral
- Bovine Respiratory Disease Complex/prevention & control
- Bovine Respiratory Disease Complex/immunology
- Bovine Respiratory Disease Complex/virology
Collapse
Affiliation(s)
- Sen Zhang
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan, China
| | - Guoxing Liu
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Yisheng Zhang
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Chen Wang
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan, China
| | - Xiaowen Xu
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan, China
| | - Yuhao Zhao
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan, China
| | - Zhijie Xiang
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Wenying Wu
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan, China
| | - Li Yang
- Wuhan Keqian Biology Co., Ltd, Research and Development Department, Wuhan, China
| | - Jianguo Chen
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Aizhen Guo
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan, China
| | - Yingyu Chen
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affair, Wuhan, China
| |
Collapse
|
7
|
欧 倩, 陈 昭, 唐 静, 陈 梦, 张 云, 陈 梓, 刘 曲, 罗 俊, 汪 川. [Immunoadjuvant Effect of Chitosan Oligosaccharide and Its Feasibility of Being Used as an Adjuvant for Attenuated Live Bacteria Vector Vaccines]. Sichuan Da Xue Xue Bao Yi Xue Ban 2024; 55:441-446. [PMID: 38645870 PMCID: PMC11026904 DOI: 10.12182/20240360207] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Indexed: 04/23/2024]
Abstract
Objective To study the immunoadjuvant effects of chitosan oligosaccharide (COS), including the immune activation and the triggering of lysosomal escape, and to explore whether COS can be used as an adjuvant for attenuated live bacteria vector vaccines. Methods 1) Mouse macrophages RAW264.7 cells were cultured with COS at 0 mg/mL (the control group) and 0.1-4 mg/mL for 24 h and the effect on cell viability was measured by CCK8 assay. Mouse macrophages RAW264.7 were treated with COS at 0 (the control group), 1, 2, and 4 mg/mL for 24 h. Then, the mRNA expression levels of the cytokines, including IFN-γ, IL-10, TGF-β, and TLR4, were determined by RT-qPCR assay. 2) RAW264.7 cells were treated with 1 mL of PBS containing different components, including calcein at 50 μg/mL, COS at 2 mg/mL, and bafilomycin A1, an inhibitor, at 1 μmol/mL, for culturing. The cells were divided into the Calcein group, Calcein+COS group, and Calcein+COS+Bafilomycin A1 group accordingly. Laser scanning confocal microscopy was used to observe the phagocytosis and the intracellular fluorescence distribution of calcein, a fluorescent dye, in RAW264.7 cells in the presence or absence of COS intervention to determine whether COS was able to trigger lysosomal escape. 3) LM∆E6E7 and LI∆E6E7, the attenuated Listeria vector candidate therapeutic vaccines for cervical cancer, were encapsulated with COS at the mass concentrations of 0.5 mg/mL, 1 mg/mL, 2 mg/mL , 4 mg/mL, and 8 mg/mL. Then, the changes in zeta potential were measured to select the concentration of COS that successfully encapsulated the bacteria. Phagocytosis of the vaccine strains by RAW264.7 cells was measured before and after LM∆E6E7 and LI∆E6E7 were coated with COS at 2 mg/mL. Results 1) CCK8 assays showed that, compared with the findings for the control group, the intervention of RAW264.7 cells with COS at different concentrations for 24 h was not toxic to the cells and promoted cell proliferation, with the difference being statistically significant (P<0.05). According to the RT-qPCR results, compared with those of the control group, the COS intervention up-regulated the mRNA levels of TLR4 and IFN-γ in RAW264.7 cells, while it inhibited the mRNA expression levels of TGF-β and IL-10, with the most prominent effect being observed in the 4 mg/mL COS group (P<0.05). 2) Laser scanning confocal microscopy revealed that the amount of fluorescent dye released from lysosomes into the cells was greater in the Calcein+COS group than that in the Calcein group. In other words, a greater amount of fluorescent dye was released from lysosomes into the cells under COS intervention. Furthermore, this process could be blocked by bafilomycin A1. 3) The zeta potential results showed that COS could successfully encapsulate the surface of bacteria when its mass concentration reached 2 mg/mL. Before and after the vaccine strain was encapsulated by COS, the phagocytosis of LM∆E6E7 by RAW264.7 cells was 5.70% and 22.00%, respectively, showing statistically significant differences (P<0.05); the phagocytosis of LI∆E6E7 by RAW264.7 cells was 1.55% and 6.12%, respectively, showing statistically significant differences (P<0.05). Conclusion COS has the effect of activating the immune response of macrophages and triggering lysosomal escape. The candidates strains of coated live attenuated bacterial vector vaccines can promote the phagocytosis of bacteria by macrophages. Further research is warranted to develop COS into an adjuvant for bacterial vector vaccine.
Collapse
Affiliation(s)
- 倩 欧
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Public Health Laboratory Sciences, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
- 深圳市生医联盟生物科技集团有限公司 (深圳 518057)Shen Zhen Biomed Alliance Biotech Group Co., Ltd, Shenzhen 518057, China
| | - 昭斌 陈
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Public Health Laboratory Sciences, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - 静 唐
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Public Health Laboratory Sciences, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - 梦蝶 陈
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Public Health Laboratory Sciences, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - 云雯 张
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Public Health Laboratory Sciences, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - 梓楠 陈
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Public Health Laboratory Sciences, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - 曲 刘
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Public Health Laboratory Sciences, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - 俊容 罗
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Public Health Laboratory Sciences, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - 川 汪
- 四川大学华西公共卫生学院/四川大学华西第四医院 卫生检验与检疫系 (成都 610041)Department of Public Health Laboratory Sciences, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| |
Collapse
|
8
|
Nie L, Huang Y, Cheng Z, Luo H, Zhan Y, Dou K, Ma C, Yu C, Luo C, Liu Z, Liu S, Zhu Y. An intranasal influenza virus vector vaccine protects against Helicobacter pylori in mice. J Virol 2024; 98:e0192323. [PMID: 38358289 PMCID: PMC10949480 DOI: 10.1128/jvi.01923-23] [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: 12/09/2023] [Accepted: 01/22/2024] [Indexed: 02/16/2024] Open
Abstract
Helicobacter pylori is a human pathogen that infects almost half of the population. Antibiotic resistance in H. pylori threatens health and increases the demand for prophylactic and therapeutic vaccines. Traditional oral vaccine research faces considerable challenges because of the epithelial barrier, potential enterotoxicity of adjuvants, and the challenging conditions of the gastric environment. We developed an intranasal influenza A virus (IAV) vector vaccine based on two live attenuated influenza viruses with modified acidic polymerase protein (PA) genes encoding the A subunit of H. pylori neutrophil-activating protein (NapA), named IAV-NapA, including influenza virus A/WSN/33 (WSN)-NapA and A/Puerto Rico/8/34 (PR8)-NapA. These recombinant influenza viruses were highly attenuated and exhibited strong immunogenicity in mice. Vaccination with IAV-NapA induced antigen-specific humoral and mucosal immune responses while stimulating robust Th1 and Th17 cell immune responses in mice. Our findings suggest that prophylactic and therapeutic vaccination with influenza virus vector vaccines significantly reduces colonization of H. pylori and inflammation in the stomach of mice.IMPORTANCEHelicobacter pylori is the most common cause of chronic gastritis and leads to severe gastroduodenal pathology in some patients. Many studies have shown that Th1 and Th17 cellular and gastric mucosal immune responses are critical in reducing H. pylori load. IAV vector vaccines can stimulate these immune responses while overcoming potential adjuvant toxicity and antigen dosing issues. To date, no studies have demonstrated the role of live attenuated IAV vector vaccines in preventing and treating H. pylori infection. Our work indicates that vaccination with IAV-NapA induces antigen-specific humoral, cellular, and mucosal immunity, producing a protective and therapeutic effect against H. pylori infection in BALB/c mice. This undescribed H. pylori vaccination approach may provide valuable information for developing vaccines against H. pylori infection.
Collapse
Affiliation(s)
- Longyu Nie
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Yu Huang
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Zhikui Cheng
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Hao Luo
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Yuxin Zhan
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Kaiwen Dou
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Caijiao Ma
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Chen Yu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Chuanjin Luo
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Zhiqiang Liu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Shi Liu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| | - Ying Zhu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan, China
| |
Collapse
|
9
|
Chi Y, Jiao H, Ran J, Xiong C, Wei J, Ozdemir E, Wu R. Construction and efficacy of Aeromonas veronii mutant Δhcp as a live attenuated vaccine for the largemouth bass (Micropterus salmoides). Fish Shellfish Immunol 2023; 136:108694. [PMID: 36944414 DOI: 10.1016/j.fsi.2023.108694] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 02/10/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 06/18/2023]
Abstract
Aeromonas veronii is a human and animal co-pathogenic bacterium that could have a significant negative impact on both human health and aquaculture. In this study, a mutant strain of A. veronii with deletion of the hemolysin co-regulated protein (hcp) gene was constructed (Δhcp-AV). Compared with the wild strain, Δhcp-AV showed significantly reduced growth capacity and biofilm formation ability. Motility tests showed that the hcp gene had no significant effect on the swimming and swarming ability. In addition, the pathogenicity was also reduced. To evaluate the efficacy of Δhcp-AV as a live attenuated vaccine for prevention of Aeromonas veronii infection, we compared the immune response of largemouth bass (Micropterus salmoides) after immunization with 500 μL of 1.47 × 105 CFU/mL of Δhcp-AV and 4 × 108 CFU/mL of inactivated A. veronii. Obvious increases of serum immune related enzyme activity were observed in immunization groups. Expression levels of immune-related genes in Δhcp-AV group were up-regulated, and higher than those in inactivated A. veronii group. After challenging with live A. veronii, the relative percent survival (RPS) was 100% in Δhcp- AV group, whereas the RPS was 76.67% in inactivated A. veronii group. Our data suggest that the live attenuated vaccine Δhcp- AV could elicit a stronger immune response and provide a higher RPS than inactivated A. veronii. These data suggest that hcp gene is an important virulence factor of A. veronii, and the live attenuated vaccine Δhcp-AV is safe and effective for prevention A. veronii infection in M. salmoides farming.
Collapse
Affiliation(s)
- Yuyu Chi
- College of Fisheries, Southwest University, Chongqing, 400715, China; Key Laboratory of Freshwater Fish Reproduction and Development, Minister of Education, Southwest University, Chongqing, 400715, China.
| | - Hanyang Jiao
- College of Fisheries, Southwest University, Chongqing, 400715, China; Key Laboratory of Freshwater Fish Reproduction and Development, Minister of Education, Southwest University, Chongqing, 400715, China.
| | - Jiayan Ran
- College of Fisheries, Southwest University, Chongqing, 400715, China; Key Laboratory of Freshwater Fish Reproduction and Development, Minister of Education, Southwest University, Chongqing, 400715, China.
| | - Chuanyu Xiong
- College of Fisheries, Southwest University, Chongqing, 400715, China; Key Laboratory of Freshwater Fish Reproduction and Development, Minister of Education, Southwest University, Chongqing, 400715, China.
| | - Jinming Wei
- College of Fisheries, Southwest University, Chongqing, 400715, China; Key Laboratory of Freshwater Fish Reproduction and Development, Minister of Education, Southwest University, Chongqing, 400715, China.
| | - Eda Ozdemir
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, 39762, USA.
| | - Ronghua Wu
- College of Fisheries, Southwest University, Chongqing, 400715, China; Key Laboratory of Freshwater Fish Reproduction and Development, Minister of Education, Southwest University, Chongqing, 400715, China.
| |
Collapse
|
10
|
Ewasechko NF, Chaudhuri S, Schryvers AB. Insights from targeting transferrin receptors to develop vaccines for pathogens of humans and food production animals. Front Cell Infect Microbiol 2023; 12:1083090. [PMID: 36683691 PMCID: PMC9853020 DOI: 10.3389/fcimb.2022.1083090] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 12/16/2022] [Indexed: 01/09/2023] Open
Abstract
While developing vaccines targeting surface transferrin receptor proteins in Gram-negative pathogens of humans and food production animals, the common features derived from their evolutionary origins has provided us with insights on how improvements could be implemented in the various stages of research and vaccine development. These pathogens are adapted to live exclusively on the mucosal surfaces of the upper respiratory or genitourinary tract of their host and rely on their receptors to acquire iron from transferrin for survival, indicating that there likely are common mechanisms for delivering transferrin to the mucosal surfaces that should be explored. The modern-day receptors are derived from those present in bacteria that lived over 320 million years ago. The pathogens represent the most host adapted members of their bacterial lineages and may possess factors that enable them to have strong association with the mucosal epithelial cells, thus likely reside in a different niche than the commensal members of the bacterial lineage. The bacterial pathogens normally lead a commensal lifestyle which presents challenges for development of relevant infection models as most infection models either exclude the early stages of colonization or subsequent disease development, and the immune mechanisms at the mucosal surface that would prevent disease are not evident. Development of infection models emulating natural horizontal disease transmission are also lacking. Our aim is to share our insights from the study of pathogens of humans and food production animals with individuals involved in vaccine development, maintaining health or regulation of products in the human and animal health sectors.
Collapse
Affiliation(s)
- Nikolas F Ewasechko
- Department of Microbiology, Immunology and Infectious Diseases, Cumming School of Medicine, Calgary, AB, Canada
| | - Somshukla Chaudhuri
- Department of Microbiology, Immunology and Infectious Diseases, Cumming School of Medicine, Calgary, AB, Canada
| | - Anthony B Schryvers
- Department of Microbiology, Immunology and Infectious Diseases, Cumming School of Medicine, Calgary, AB, Canada
- Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| |
Collapse
|
11
|
Ishwarlall TZ, Adeleke VT, Maharaj L, Okpeku M, Adeniyi AA, Adeleke MA. Identification of potential candidate vaccines against Mycobacterium ulcerans based on the major facilitator superfamily transporter protein. Front Immunol 2022; 13:1023558. [PMID: 36426350 PMCID: PMC9679648 DOI: 10.3389/fimmu.2022.1023558] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 08/19/2022] [Accepted: 10/19/2022] [Indexed: 11/09/2023] Open
Abstract
Buruli ulcer is a neglected tropical disease that is characterized by non-fatal lesion development. The causative agent is Mycobacterium ulcerans (M. ulcerans). There are no known vectors or transmission methods, preventing the development of control methods. There are effective diagnostic techniques and treatment routines; however, several socioeconomic factors may limit patients' abilities to receive these treatments. The Bacillus Calmette-Guérin vaccine developed against tuberculosis has shown limited efficacy, and no conventionally designed vaccines have passed clinical trials. This study aimed to generate a multi-epitope vaccine against M. ulcerans from the major facilitator superfamily transporter protein using an immunoinformatics approach. Twelve M. ulcerans genome assemblies were analyzed, resulting in the identification of 11 CD8+ and 7 CD4+ T-cell epitopes and 2 B-cell epitopes. These conserved epitopes were computationally predicted to be antigenic, immunogenic, non-allergenic, and non-toxic. The CD4+ T-cell epitopes were capable of inducing interferon-gamma and interleukin-4. They successfully bound to their respective human leukocyte antigens alleles in in silico docking studies. The expected global population coverage of the T-cell epitopes and their restricted human leukocyte antigens alleles was 99.90%. The population coverage of endemic regions ranged from 99.99% (Papua New Guinea) to 21.81% (Liberia). Two vaccine constructs were generated using the Toll-like receptors 2 and 4 agonists, LprG and RpfE, respectively. Both constructs were antigenic, non-allergenic, non-toxic, thermostable, basic, and hydrophilic. The DNA sequences of the vaccine constructs underwent optimization and were successfully in-silico cloned with the pET-28a(+) plasmid. The vaccine constructs were successfully docked to their respective toll-like receptors. Molecular dynamics simulations were carried out to analyze the binding interactions within the complex. The generated binding energies indicate the stability of both complexes. The constructs generated in this study display severable favorable properties, with construct one displaying a greater range of favorable properties. However, further analysis and laboratory validation are required.
Collapse
Affiliation(s)
- Tamara Z. Ishwarlall
- Discipline of Genetics, School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Victoria T. Adeleke
- Department of Chemical Engineering, Mangosuthu University of Technology, Durban, South Africa
| | - Leah Maharaj
- Discipline of Genetics, School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Moses Okpeku
- Discipline of Genetics, School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Adebayo A. Adeniyi
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa
- Department of Industrial Chemistry, Federal University Oye Ekiti, Oye-Ekiti, Ekiti State, Nigeria
| | - Matthew A. Adeleke
- Discipline of Genetics, School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
| |
Collapse
|
12
|
Li Z, Lu J, Tan X, Wang R, Xu Q, Yu Y, Yang Z. Functional EL-HN Fragment as a Potent Candidate Vaccine for the Prevention of Botulinum Neurotoxin Serotype E. Toxins (Basel) 2022; 14:toxins14020135. [PMID: 35202162 PMCID: PMC8880310 DOI: 10.3390/toxins14020135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 12/29/2021] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 11/21/2022] Open
Abstract
Clostridium botulinum produces botulinum neurotoxin (BoNT), which is the most toxic known protein and the causative agent of human botulism. BoNTs have similar structures and functions, comprising three functional domains: catalytic domain (L), translocation domain (HN), and receptor-binding domain (Hc). In the present study, BoNT/E was selected as a model toxin to further explore the immunological significance of each domain. The EL-HN fragment (L and HN domains of BoNT/E) retained the enzymatic activity without in vivo neurotoxicity. Extensive investigations showed EL-HN functional fragment had the highest protective efficacy and contained some functional neutralizing epitopes. Further experiments demonstrated the EL-HN provided a superior protective effect compared with the EHc or EHc and EL-HN combination. Thus, the EL-HN played an important role in immune protection against BoNT/E and could provide an excellent platform for the design of botulinum vaccines and neutralizing antibodies. The EL-HN has the potential to replace EHc or toxoid as the optimal immunogen for the botulinum vaccine.
Collapse
Affiliation(s)
- Zhen Li
- Beijing Institute of Biotechnology, Beijing 100071, China; (Z.L.); (J.L.); (X.T.); (R.W.)
- Institute of Life Science and Biotechnology, Beijing Jiaotong University, Beijing 100044, China
| | - Jiansheng Lu
- Beijing Institute of Biotechnology, Beijing 100071, China; (Z.L.); (J.L.); (X.T.); (R.W.)
| | - Xiao Tan
- Beijing Institute of Biotechnology, Beijing 100071, China; (Z.L.); (J.L.); (X.T.); (R.W.)
- Institute of Life Science and Biotechnology, Beijing Jiaotong University, Beijing 100044, China
| | - Rong Wang
- Beijing Institute of Biotechnology, Beijing 100071, China; (Z.L.); (J.L.); (X.T.); (R.W.)
| | - Qing Xu
- Institute of Life Science and Biotechnology, Beijing Jiaotong University, Beijing 100044, China
- Correspondence: (Q.X.); (Y.Y.); (Z.Y.)
| | - Yunzhou Yu
- Beijing Institute of Biotechnology, Beijing 100071, China; (Z.L.); (J.L.); (X.T.); (R.W.)
- Correspondence: (Q.X.); (Y.Y.); (Z.Y.)
| | - Zhixin Yang
- Beijing Institute of Biotechnology, Beijing 100071, China; (Z.L.); (J.L.); (X.T.); (R.W.)
- Correspondence: (Q.X.); (Y.Y.); (Z.Y.)
| |
Collapse
|
13
|
Heckman TI, Shahin K, Henderson EE, Griffin MJ, Soto E. Development and efficacy of Streptococcus iniae live-attenuated vaccines in Nile tilapia, Oreochromis niloticus. Fish Shellfish Immunol 2022; 121:152-162. [PMID: 34965443 DOI: 10.1016/j.fsi.2021.12.043] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 06/07/2021] [Revised: 11/30/2021] [Accepted: 12/23/2021] [Indexed: 06/14/2023]
Abstract
Streptococcus iniae is a re-emerging bacterial pathogen in freshwater and marine aquaculture worldwide. There are no commercial vaccines available for S. iniae in the United States, and autogenous vaccines are restricted to inactivated whole-cell preparations with limited protection against heterogenous strains. Live-attenuated vaccines (LAV) represent an advantageous alternative to these bacterins, as they induce robust cellular and humoral immunity, and may provide longer lasting protection through less stressful routes of administration. We investigated whether accumulation of mutations in S. iniae by serial passage in the presence of rifampin can generate immunogenic LAV conferring protection against challenge with heterologous wild-type (WT) S. iniae strains in Nile tilapia (Oreochromis niloticus). Three lineages of rifampin-resistant S. iniae strains were generated from three genetically distinct parent strains (n = 9) by multiple passages in increments of Rifamycin SV sodium salt. Growth in liquid media, extent of capsulation, antimicrobial susceptibility, survival in Nile tilapia whole blood, and cytotoxicity in an O. mossambicus endothelial cell line were compared between the passaged and WT strains. Nile tilapia challenges were used to assess strain virulence, generation of anti-S. iniae IgM, and the protection conferred by LAV candidates against virulent S. iniae. Rifampin-resistant strains demonstrated changes in growth rate and cytotoxicity in endothelial cells, as well as significant reductions in whole blood survival (p < 0.05). Selected strains also showed attenuated virulence in the Nile tilapia challenge model, and anti-S. iniae IgM generated against these strains demonstrated cross-reactivity against heterologous bacteria. Immunization by intracoelomic injection induced protection against a virulent WT strain of S. iniae, with relative percent survival up to 95.05%.
Collapse
Affiliation(s)
- Taylor I Heckman
- Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, CA, 95616, USA
| | - Khalid Shahin
- Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, CA, 95616, USA; Aquatic Animals Diseases Laboratory, Aquaculture Division, National Institute of Oceanography and Fisheries, P.O. Box 43511, Suez, Egypt
| | - Eileen E Henderson
- California Animal Health and Food Safety Lab, School of Veterinary Medicine, University of California, Davis, CA, 92408, USA
| | - Matt J Griffin
- Department of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, Stoneville, MS, 39762, USA
| | - Esteban Soto
- Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, CA, 95616, USA.
| |
Collapse
|
14
|
Papadopoulou A, Monaghan SJ, Bagwell N, Alves MT, Verner-Jeffreys D, Wallis T, Davie A, Adams A, Migaud H. Efficacy testing of an immersion vaccine against Aeromonas salmonicida and immunocompetence in ballan wrasse (Labrus bergylta, Ascanius). Fish Shellfish Immunol 2022; 121:505-515. [PMID: 34673256 DOI: 10.1016/j.fsi.2021.09.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 05/06/2021] [Revised: 09/25/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023]
Abstract
The development of effective vaccines is a critical step towards the domestication of emerging fish species for aquaculture. However, traditional vaccine delivery through intraperitoneal (i.p.) injection requires fish to reach a minimum size and age and therefore cannot provide protection at early developmental stages when infection may occur. This study investigated the effectiveness of immersion vaccination with respect to immunocompetence in a cleaner fish species (ballan wrasse, Labrus bergylta, Ascanius) used in Atlantic salmon farming as an alternative means to control sea lice. The species is susceptible to atypical strains of Aeromonas salmonicida (aAs) at early life stages (<15 g), when i.p. vaccination is not applicable. While immersion vaccination is currently used in commercial hatcheries, the optimal fish size for vaccination, and efficacy of the vaccine delivered by this route has not yet been established. Importantly, efficacy depends on the capability of the species immune system to recognise antigens and process antigens to trigger and produce an adaptive immune response, (process known as immunocompetence). In this study, the efficacy of a polyvalent autogenous vaccine administered by immersion in juvenile ballan wrasse and the subsequent immune response induced was investigated after prime and booster vaccination regimes. In addition, temporal expression (0-150 days post hatch) of adaptive immune genes including major histocompatibility complex (MHC II CD74 molecule) and immunoglobulin M (IgM) was assessed using quantitative PCR (qPCR). Prime and/or boost vaccination by immersion of juvenile ballan wrasse (0.5 g and 1.5 g corresponding to 80 and 170 days post hatch (dph), respectively) did not provide significant protection against aAs vapA V after bath challenge under experimental conditions. Despite no evident protection >80 dph, MHC II and IgM transcripts were first reported at 35 and 75 dph, respectively, suggesting a window of immunocompetence. The results provide important new information on the onset of adaptive immunity in ballan wrasse and highlight that immersion vaccination in the species for protection against aAs should be performed at later developmental stages (>1.5 g) in the hatchery.
Collapse
Affiliation(s)
- Athina Papadopoulou
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, FK9 4LA, UK; Centre for Environment, Fisheries and Aquaculture Science, Barrack Road, the Nothe, Weymouth, Dorset, DT4 8UB, UK
| | - Sean J Monaghan
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, FK9 4LA, UK
| | - Nicola Bagwell
- Centre for Environment, Fisheries and Aquaculture Science, Barrack Road, the Nothe, Weymouth, Dorset, DT4 8UB, UK
| | - Mickael Teixeira Alves
- Centre for Environment, Fisheries and Aquaculture Science, Barrack Road, the Nothe, Weymouth, Dorset, DT4 8UB, UK
| | - David Verner-Jeffreys
- Centre for Environment, Fisheries and Aquaculture Science, Barrack Road, the Nothe, Weymouth, Dorset, DT4 8UB, UK
| | - Tim Wallis
- Ridgeway Biologicals Ltd. a Ceva Santé Animale Company, Units 1-3 Old Station Business Park, Compton, Berkshire, RG20 6NE, UK
| | - Andrew Davie
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, FK9 4LA, UK
| | - Alexandra Adams
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, FK9 4LA, UK
| | - Herve Migaud
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, FK9 4LA, UK.
| |
Collapse
|
15
|
Jalal K, Abu-Izneid T, Khan K, Abbas M, Hayat A, Bawazeer S, Uddin R. Identification of vaccine and drug targets in Shigella dysenteriae sd197 using reverse vaccinology approach. Sci Rep 2022; 12:251. [PMID: 34997046 PMCID: PMC8742002 DOI: 10.1038/s41598-021-03988-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [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: 07/25/2021] [Accepted: 12/07/2021] [Indexed: 11/09/2022] Open
Abstract
Shigellosis is characterized as diarrheal disease that causes a high mortality rate especially in children, elderly and immunocompromised patients. More recently, the World Health Organization advised safe vaccine designing against shigellosis due to the emergence of Shigella dysenteriae resistant strains. Therefore, the aim of this study is to identify novel drug targets as well as the design of the potential vaccine candidates and chimeric vaccine models against Shigella dysenteriae. A computational based Reverse Vaccinology along with subtractive genomics analysis is one of the robust approaches used for the prioritization of drug targets and vaccine candidates through direct screening of genome sequence assemblies. Herein, a successfully designed peptide-based novel highly antigenic chimeric vaccine candidate against Shigella dysenteriae sd197 strain is proposed. The study resulted in six epitopes from outer membrane WP_000188255.1 (Fe (3+) dicitrate transport protein FecA) that ultimately leads to the construction of twelve vaccine models. Moreover, V9 construct was found to be highly immunogenic, non-toxic, non-allergenic, highly antigenic, and most stable in terms of molecular docking and simulation studies against six HLAs and TLRS/MD complex. So far, this protein and multiepitope have never been characterized as vaccine targets against Shigella dysenteriae. The current study proposed that V9 could be a significant vaccine candidate against shigellosis and to ascertain that further experiments may be applied by the scientific community focused on shigellosis.
Collapse
Affiliation(s)
- Khurshid Jalal
- H.E.J. Research Institute of Chemistry International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Tareq Abu-Izneid
- Pharmaceutical Sciences, College of Pharmacy, Al Ain University Al Ain Campus, Al Ain, United Arab Emirates
| | - Kanwal Khan
- Lab 103 PCMD Ext. Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Muhammad Abbas
- Department of Pharmacy, Abdul Wali Khan University Mardan KP, Mardan, Pakistan
| | - Ajmal Hayat
- Department of Pharmacy, Abdul Wali Khan University Mardan KP, Mardan, Pakistan
| | - Sami Bawazeer
- Pharmacognosy Department, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Reaz Uddin
- Lab 103 PCMD Ext. Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan.
| |
Collapse
|
16
|
Brandi P, Conejero L, Cueto FJ, Martínez-Cano S, Dunphy G, Gómez MJ, Relaño C, Saz-Leal P, Enamorado M, Quintas A, Dopazo A, Amores-Iniesta J, Del Fresno C, Nistal-Villán E, Ardavín C, Nieto A, Casanovas M, Subiza JL, Sancho D. Trained immunity induction by the inactivated mucosal vaccine MV130 protects against experimental viral respiratory infections. Cell Rep 2022; 38:110184. [PMID: 34986349 PMCID: PMC8755442 DOI: 10.1016/j.celrep.2021.110184] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 09/11/2021] [Accepted: 12/07/2021] [Indexed: 12/13/2022] Open
Abstract
MV130 is an inactivated polybacterial mucosal vaccine that confers protection to patients against recurrent respiratory infections, including those of viral etiology. However, its mechanism of action remains poorly understood. Here, we find that intranasal prophylaxis with MV130 modulates the lung immune landscape and provides long-term heterologous protection against viral respiratory infections in mice. Intranasal administration of MV130 provides protection against systemic candidiasis in wild-type and Rag1-deficient mice lacking functional lymphocytes, indicative of innate immune-mediated protection. Moreover, pharmacological inhibition of trained immunity with metformin abrogates the protection conferred by MV130 against influenza A virus respiratory infection. MV130 induces reprogramming of both mouse bone marrow progenitor cells and in vitro human monocytes, promoting an enhanced cytokine production that relies on a metabolic shift. Our results unveil that the mucosal administration of a fully inactivated bacterial vaccine provides protection against viral infections by a mechanism associated with the induction of trained immunity.
Collapse
Affiliation(s)
- Paola Brandi
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Laura Conejero
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Francisco J Cueto
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Sarai Martínez-Cano
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain; Inmunotek S.L., Alcalá de Henares, Spain
| | - Gillian Dunphy
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Manuel J Gómez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Carlos Relaño
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Paula Saz-Leal
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Michel Enamorado
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Ana Quintas
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Ana Dopazo
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | | | - Carlos Del Fresno
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain; Instituto de Investigación Biomédica del Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
| | - Estanislao Nistal-Villán
- Microbiology Section, Department Pharmacological and Health Sciences, Facultad de Farmacia, Universidad CEU San Pablo, Madrid, Spain
| | - Carlos Ardavín
- Departamento de Inmunología y Oncología, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
| | - Antonio Nieto
- Pediatric Pulmonology & Allergy Unit, Health Research Institute, La Fe University Hospital, Valencia, Spain
| | | | | | - David Sancho
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.
| |
Collapse
|
17
|
Barazzone GC, Teixeira AF, Azevedo BOP, Damiano DK, Oliveira MP, Nascimento ALTO, Lopes APY. Revisiting the Development of Vaccines Against Pathogenic Leptospira: Innovative Approaches, Present Challenges, and Future Perspectives. Front Immunol 2022; 12:760291. [PMID: 35046936 PMCID: PMC8761801 DOI: 10.3389/fimmu.2021.760291] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 11/16/2021] [Indexed: 12/12/2022] Open
Abstract
Human vaccination against leptospirosis has been relatively unsuccessful in clinical applications despite an expressive amount of vaccine candidates has been tested over years of research. Pathogenic Leptospira encompass a great number of serovars, most of which do not cross-react, and there has been a lack of genetic tools for many years. These obstacles have hampered the understanding of the bacteria's biology and, consequently, the identification of an effective antigen. Thus far, many approaches have been used in an attempt to find a cost-effective and broad-spectrum protective antigen(s) against the disease. In this extensive review, we discuss several strategies that have been used to develop an effective vaccine against leptospirosis, starting with Leptospira-inactivated bacterin, proteins identified in the genome sequences of pathogenic Leptospira, including reverse vaccinology, plasmid DNA, live vaccines, chimeric multi-epitope, and toll- and nod-like receptors agonists. This overview should be able to guide scientists working in the field to select potential antigens and to choose the appropriate formulation to administer the candidates.
Collapse
Affiliation(s)
- Giovana C. Barazzone
- Laboratório de Desenvolvimento de Vacinas, Instituto Butantan, São Paulo, Brazil
- Programa de Pós-Graduação Interunidades em Biotecnologia, Instituto de Ciências Biomédicas, Universidade de São Paulo (USP), São Paulo, Brazil
| | - Aline F. Teixeira
- Laboratório de Desenvolvimento de Vacinas, Instituto Butantan, São Paulo, Brazil
| | - Bruna O. P. Azevedo
- Laboratório de Desenvolvimento de Vacinas, Instituto Butantan, São Paulo, Brazil
- Programa de Pós-Graduação Interunidades em Biotecnologia, Instituto de Ciências Biomédicas, Universidade de São Paulo (USP), São Paulo, Brazil
| | - Deborah K. Damiano
- Laboratório de Desenvolvimento de Vacinas, Instituto Butantan, São Paulo, Brazil
- Programa de Pós-Graduação Interunidades em Biotecnologia, Instituto de Ciências Biomédicas, Universidade de São Paulo (USP), São Paulo, Brazil
| | - Marcos P. Oliveira
- Laboratório de Desenvolvimento de Vacinas, Instituto Butantan, São Paulo, Brazil
- Programa de Pós-Graduação Interunidades em Biotecnologia, Instituto de Ciências Biomédicas, Universidade de São Paulo (USP), São Paulo, Brazil
| | - Ana L. T. O. Nascimento
- Laboratório de Desenvolvimento de Vacinas, Instituto Butantan, São Paulo, Brazil
- Programa de Pós-Graduação Interunidades em Biotecnologia, Instituto de Ciências Biomédicas, Universidade de São Paulo (USP), São Paulo, Brazil
| | - Alexandre P. Y. Lopes
- Laboratório de Desenvolvimento de Vacinas, Instituto Butantan, São Paulo, Brazil
- Programa de Pós-Graduação Interunidades em Biotecnologia, Instituto de Ciências Biomédicas, Universidade de São Paulo (USP), São Paulo, Brazil
| |
Collapse
|
18
|
Song H, Zhang S, Yang B, Liu Y, Kang Y, Li Y, Qian A, Yuan Z, Cong B, Shan X. Effects of four different adjuvants separately combined with Aeromonas veronii inactivated vaccine on haematoimmunological state, enzymatic activity, inflammatory response and disease resistance in crucian carp. Fish Shellfish Immunol 2022; 120:658-673. [PMID: 34500055 DOI: 10.1016/j.fsi.2021.09.003] [Citation(s) in RCA: 6] [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] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 09/01/2021] [Accepted: 09/04/2021] [Indexed: 06/13/2023]
Abstract
The purpose of the current study was to explore the immunomodulatory effects of different adjuvants combined with inactivated vaccines under Aeromonas veronii TH0426 infection in crucian carp. This study explored the best conditions for A. veronii as an inactivated vaccine, and included an animal safety test. Furthermore, we expressed the flagellin FlaA of the A. veronii TH0426 strain for use as an adjuvant supplemented in the diet. Crucian carp were fed 12 different experimental diets for 35 days, including the administration of 10 different adjuvants and inactivated vaccine combinations (50% aluminum hydroxide gel and inactivated vaccine combination, and inactivated vaccine with 20%, 30%, or 50% glucan, astragalus polysaccharide or flagellin), inactivated vaccine alone, and PBS control without adjuvant and inactivated vaccine. After the 42 day feeding trials, the fish were challenged with A. veronii TH0426, and the survival rate over 14 days was recorded. In addition, flagellin FlaA can be expressed normally in large amounts. All experimental groups produced higher levels of IgM serum titres than the control group in the different feeding cycles. Moreover, the activity of serum ACP, AKP, SOD, and LZM, and the expression of inflammatory factors were significantly increased in the experimental groups compared with the control group. The results of qRT-PCR analysis showed that the transcription levels of the IL-10, IL-1β, IFN-γ and TNF-α genes in heart, liver, spleen and kidney tissues were significantly enhanced by adjuvant treatment, indicating that the addition of adjuvants can significantly promote the body's inflammatory response. In addition, the phagocytic activity of leukocytes in each adjuvant treated group was significantly enhanced compared to that in the groups without adjuvant. After the A. veronii challenge, the survival rate of all adjuvant-treated groups was significantly higher than that of the control group, and the 50% flagellin adjuvant group had the highest rate of 78.37%. Overall, our findings strongly indicate that adjuvants not only significantly improve the body's immunity, but also exhibit a strong anti-infection ability. Importantly, this work provides a new perspective for the prevention and control of aquaculture diseases.
Collapse
Affiliation(s)
- Haichao Song
- College of Veterinary Medicine, College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, Jilin, China
| | - Siqi Zhang
- Dunhua Agricultural and Rural Bureau, Dunhua, Jilin, China
| | - Bintong Yang
- Marine College, Shandong University, Weihai, China
| | - Yanhui Liu
- Jilin Academy of Sciences, Changchun, Jilin, China
| | | | - Ying Li
- College of Veterinary Medicine, College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, Jilin, China
| | - Aidong Qian
- College of Veterinary Medicine, College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, Jilin, China
| | - Zhonghua Yuan
- College of Veterinary Medicine, College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, Jilin, China
| | - Bo Cong
- Institute of Special Animal and Plant Sciences of CAAS, Changchun, Jilin, China.
| | - Xiaofeng Shan
- College of Veterinary Medicine, College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, Jilin, China.
| |
Collapse
|
19
|
Orr B, Westman ME, Malik R, Purdie A, Craig SB, Norris JM. Leptospirosis is an emerging infectious disease of pig-hunting dogs and humans in North Queensland. PLoS Negl Trop Dis 2022; 16:e0010100. [PMID: 35041681 PMCID: PMC8797170 DOI: 10.1371/journal.pntd.0010100] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [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: 06/20/2021] [Revised: 01/28/2022] [Accepted: 12/18/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Leptospirosis is a zoonotic disease with a worldwide distribution, caused by pathogenic serovars in the genus Leptospira. Feral pigs are known carriers of Leptospira species and pig hunting using dogs is a common recreational activity in Queensland, Australia. METHODOLOGY AND PRINCIPAL FINDINGS This study aimed to determine the seroprevalence of Leptospira spp. serovars in pig-hunting dogs above the Tropic of Capricorn in Queensland and by establishing the geographic distribution, serovars and incidence of human cases of leptospirosis in Queensland, identify potential overlap between human and canine exposure. We also explored the knowledge and risk-taking behaviours of pig-hunting dog owners towards zoonotic diseases. Ninety-eight pig-hunting dogs deemed healthy by physical examination and owned by 41 people from Queensland had serum submitted for Microscopic Agglutination Testing (MAT) to determine antibody titres against Leptospira serovars, while 40/41 dog owners completed a survey on their knowledge of diseases relating to pig hunting. Human leptospirosis cases (n = 330) notified to Queensland Health between 2015-2018 were analysed. Approximately one quarter (23/87; 26%) of unvaccinated pig-hunting dogs were seropositive to Leptospira spp. Although harder to interpret, 8/11 (73%) vaccinated dogs were seropositive to Leptospira spp. Pig hunters may be more likely to contract leptospirosis compared with the general Queensland population, based on responses from surveyed hunters. The highest concentration of human leptospirosis was in the wet tropics region of Far North Queensland. There was little overlap between the serovars dogs were exposed to and those infecting humans. The dominant serovar identified in unvaccinated dogs was Australis (13/23; 57%), with serovar Arborea (36/330; 10.9%) responsible for the highest number of human leptospirosis cases. Topaz was the second most common serovar in both humans and dogs and was previously unrecorded in Australian dogs. Most hunters surveyed used hand washing as a zoonotic disease risk reduction technique. CONCLUSIONS Leptospirosis is an emerging disease of growing significance. The infection requires a 'one health' approach to understand its epidemiology. With shifting climatic patterns influencing human-animal-environment interactions, ongoing monitoring of diseases like leptospirosis is critical to helping prevent infection of individuals and disease outbreaks.
Collapse
Affiliation(s)
- Bronwyn Orr
- Sydney School of Veterinary Science, The University of Sydney, Sydney, Australia
| | - Mark E. Westman
- Sydney School of Veterinary Science, The University of Sydney, Sydney, Australia
- Elizabeth Macarthur Agricultural Institute (EMAI), Woodbridge Road, Menangle, Australia
| | - Richard Malik
- Centre for Veterinary Education, The University of Sydney, Sydney, Australia
- School of Veterinary and Animal Science, Charles Sturt University, Wagga Wagga, Australia
| | - Auriol Purdie
- Sydney School of Veterinary Science, The University of Sydney, Sydney, Australia
| | - Scott B. Craig
- WHO Leptospirosis Laboratory, Public and Environmental Health, Department of Health, Coopers Plains, Australia
| | - Jacqueline M. Norris
- Sydney School of Veterinary Science, The University of Sydney, Sydney, Australia
- The Sydney Institute for Infectious Diseases, The University of Sydney, Sydney, Australia
| |
Collapse
|
20
|
Khairallah C, Bettke JA, Gorbatsevych O, Qiu Z, Zhang Y, Cho K, Kim KS, Chu TH, Imperato JN, Hatano S, Romanov G, Yoshikai Y, Puddington L, Surh CD, Bliska JB, van der Velden AWM, Sheridan BS. A blend of broadly-reactive and pathogen-selected Vγ4 Vδ1 T cell receptors confer broad bacterial reactivity of resident memory γδ T cells. Mucosal Immunol 2022; 15:176-187. [PMID: 34462572 PMCID: PMC8738109 DOI: 10.1038/s41385-021-00447-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 03/07/2021] [Revised: 08/03/2021] [Accepted: 08/16/2021] [Indexed: 02/04/2023]
Abstract
Although murine γδ T cells are largely considered innate immune cells, they have recently been reported to form long-lived memory populations. Much remains unknown about the biology and specificity of memory γδ T cells. Here, we interrogated intestinal memory Vγ4 Vδ1 T cells generated after foodborne Listeria monocytogenes (Lm) infection to uncover an unanticipated complexity in the specificity of these cells. Deep TCR sequencing revealed that a subset of non-canonical Vδ1 clones are selected by Lm infection, consistent with antigen-specific clonal expansion. Ex vivo stimulations and in vivo heterologous challenge infections with diverse pathogenic bacteria revealed that Lm-elicited memory Vγ4 Vδ1 T cells are broadly reactive. The Vγ4 Vδ1 T cell recall response to Lm, Salmonella enterica serovar Typhimurium (STm) and Citrobacter rodentium was largely mediated by the γδTCR as internalizing the γδTCR prevented T cell expansion. Both broadly-reactive canonical and pathogen-selected non-canonical Vδ1 clones contributed to memory responses to Lm and STm. Interestingly, some non-canonical γδ T cell clones selected by Lm infection also responded after STm infection, suggesting some level of cross-reactivity. These findings underscore the promiscuous nature of memory γδ T cells and suggest that pathogen-elicited memory γδ T cells are potential targets for broad-spectrum anti-infective vaccines.
Collapse
MESH Headings
- Animals
- Antigens, Bacterial/immunology
- Bacterial Infections/immunology
- Bacterial Vaccines/immunology
- Cells, Cultured
- Citrobacter rodentium/physiology
- Cross Reactions
- High-Throughput Nucleotide Sequencing
- Immunity, Heterologous
- Listeria monocytogenes/physiology
- Memory T Cells/immunology
- Memory T Cells/metabolism
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Transgenic
- Receptors, Antigen, T-Cell, gamma-delta/genetics
- Receptors, Antigen, T-Cell, gamma-delta/metabolism
- Salmonella typhi/physiology
- T-Cell Antigen Receptor Specificity
Collapse
Affiliation(s)
- Camille Khairallah
- Department of Microbiology and Immunology, Center for Infectious Diseases, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Julie A Bettke
- Department of Microbiology and Immunology, Center for Infectious Diseases, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Oleksandr Gorbatsevych
- Department of Microbiology and Immunology, Center for Infectious Diseases, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Zhijuan Qiu
- Department of Microbiology and Immunology, Center for Infectious Diseases, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Yue Zhang
- Department of Microbiology and Immunology, Center for Infectious Diseases, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Kyungjin Cho
- Academy of Immunology and Microbiology, Institute for Basic Science, Pohang, Republic of Korea
- Division of integrative Biosciences & Biotechnology, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Kwang Soon Kim
- Academy of Immunology and Microbiology, Institute for Basic Science, Pohang, Republic of Korea
- Division of integrative Biosciences & Biotechnology, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Timothy H Chu
- Department of Microbiology and Immunology, Center for Infectious Diseases, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Jessica N Imperato
- Department of Microbiology and Immunology, Center for Infectious Diseases, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Shinya Hatano
- Division of Immunology and Genome Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Galina Romanov
- Department of Microbiology and Immunology, Center for Infectious Diseases, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Yasunobo Yoshikai
- Division of Immunology and Genome Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Lynn Puddington
- Department of Immunology, University of Connecticut Health, Farmington, CT, USA
| | - Charles D Surh
- Academy of Immunology and Microbiology, Institute for Basic Science, Pohang, Republic of Korea
- Division of integrative Biosciences & Biotechnology, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - James B Bliska
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Dartmouth College, Hanover, NH, USA
| | - Adrianus W M van der Velden
- Department of Microbiology and Immunology, Center for Infectious Diseases, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Brian S Sheridan
- Department of Microbiology and Immunology, Center for Infectious Diseases, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA.
| |
Collapse
|
21
|
Wang W, Wang W, Xu W, Liu Q, Zhang Y, Liu X. Polyactin A and CpG enhance inactivated Pseudomonas plecoglossicida vaccine potency in large yellow croaker (Larimichthys crocea). Fish Shellfish Immunol 2022; 120:133-138. [PMID: 34780977 DOI: 10.1016/j.fsi.2021.11.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 10/13/2021] [Revised: 11/07/2021] [Accepted: 11/07/2021] [Indexed: 06/13/2023]
Abstract
Pseudomonas plecoglossicida is the causative agent of visceral granulomas disease (VGD) in large yellow croaker (LYC, Larimichthys crocea) farming. However, multi-antibiotic resistant of P. plecoglossicida creates an urgent need of an efficient vaccine to combat this pathogen. In this study, an inactivated vaccine added polyactin (PA), CpG-riched plasmid (pCpG) and aluminum adjuvant (Al) was developed. As a result, its relative percentage survival (RPS) against P. plecoglossicida were up to 64%. Comparatively, RPS of groups that vaccinated with vaccines adjuvanted with PA and Al or CpG and Al were 49% and 39%. However, an interesting result that the vaccine combined with PA, CpG and Al did not show the strongest activation of total serum protein and antibody levels in serum among three vaccinated groups. According to expressions of some cellular immune related genes, we found that the inactivated vaccine combined with PA, CpG and Al was more likely to induce a cellular immune response rather than humoral immune response. Totally, our study demonstrated that the mixture of PA, CpG and aluminum adjuvant is a potential adjuvant system for LYC vaccine development.
Collapse
Affiliation(s)
- Wenwen Wang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Wei Wang
- Key Laboratory of Seawater Aquaculture, Zhejiang Marine Aquatic Research Institute, Zhoushan, 316100, China
| | - Wenjun Xu
- Key Laboratory of Seawater Aquaculture, Zhejiang Marine Aquatic Research Institute, Zhoushan, 316100, China
| | - Qin Liu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China; Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai, 200237, China
| | - Yuanxing Zhang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China; Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai, 200237, China
| | - Xiaohong Liu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China; Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai, 200237, China.
| |
Collapse
|
22
|
Gregory AE, van Schaik EJ, Fratzke AP, Russell-Lodrigue KE, Farris CM, Samuel JE. Soluble antigens derived from Coxiella burnetii elicit protective immunity in three animal models without inducing hypersensitivity. Cell Rep Med 2021; 2:100461. [PMID: 35028605 PMCID: PMC8714860 DOI: 10.1016/j.xcrm.2021.100461] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 05/05/2021] [Revised: 09/27/2021] [Accepted: 11/10/2021] [Indexed: 11/25/2022]
Abstract
Q fever is caused by the intracellular bacterium Coxiella burnetii, for which there is no approved vaccine in the United States. A formalin-inactivated whole-cell vaccine (WCV) from virulent C. burnetii NMI provides single-dose long-lived protection, but concerns remain over vaccine reactogenicity. We therefore sought an alternate approach by purifying native C. burnetii antigens from the clonally derived avirulent NMII strain. A soluble bacterial extract, termed Sol II, elicits high-titer, high-avidity antibodies and induces a CD4 T cell response that confers protection in naive mice. In addition, Sol II protects against pulmonary C. burnetii challenge in three animal models without inducing hypersensitivity. An NMI-derived extract, Sol I, enhances protection further and outperforms the WCV gold standard. Collectively, these data represent a promising approach to design highly effective, non-reactogenic Q fever vaccines.
Collapse
Affiliation(s)
- Anthony E. Gregory
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Medical Research and Education Building, Bryan, TX 77807, USA
- Department of Physiology and Biophysics, School of Medicine, University of California, Irvine, Irvine, CA 92617, USA
| | - Erin J. van Schaik
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Medical Research and Education Building, Bryan, TX 77807, USA
| | - Alycia P. Fratzke
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Medical Research and Education Building, Bryan, TX 77807, USA
| | - Kasi E. Russell-Lodrigue
- Tulane University, School of Medicine, Tulane National Primate Research Center, Covington, LA 70433, USA
| | - Christina M. Farris
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Medical Research and Education Building, Bryan, TX 77807, USA
| | - James E. Samuel
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Medical Research and Education Building, Bryan, TX 77807, USA
| |
Collapse
|
23
|
Tomás-Cortázar J, Bossi L, Quinn C, Reynolds CJ, Butler DK, Corcoran N, Murchú MÓ, McMahon E, Singh M, Rongkard P, Anguita J, Blanco A, Dunachie SJ, Altmann D, Boyton RJ, Arnold J, Giltaire S, McClean S. BpOmpW Antigen Stimulates the Necessary Protective T-Cell Responses Against Melioidosis. Front Immunol 2021; 12:767359. [PMID: 34966388 PMCID: PMC8710444 DOI: 10.3389/fimmu.2021.767359] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 08/30/2021] [Accepted: 11/19/2021] [Indexed: 11/24/2022] Open
Abstract
Melioidosis is a potentially fatal bacterial disease caused by Burkholderia pseudomallei and is estimated to cause 89,000 deaths per year in endemic areas of Southeast Asia and Northern Australia. People with diabetes mellitus are most at risk of melioidosis, with a 12-fold increased susceptibility for severe disease. Interferon gamma (IFN-γ) responses from CD4 and CD8 T cells, but also from natural killer (NK) and natural killer T (NKT) cells, are necessary to eliminate the pathogen. We previously reported that immunization with B. pseudomallei OmpW (BpOmpW antigen) protected mice from lethal B. pseudomallei challenge for up to 81 days. Elucidating the immune correlates of protection of the protective BpOmpW vaccine is an essential step prior to clinical trials. Thus, we immunized either non-insulin-resistant C57BL/6J mice or an insulin-resistant C57BL/6J mouse model of type 2 diabetes (T2D) with a single dose of BpOmpW. BpOmpW induced strong antibody responses, stimulated effector CD4+ and CD8+ T cells and CD4+ CD25+ Foxp3+ regulatory T cells, and produced higher IFN-γ responses in CD4+, CD8+, NK, and NKT cells in non-insulin-resistant mice. The T-cell responses of insulin-resistant mice to BpOmpW were comparable to those of non-insulin-resistant mice. In addition, as a precursor to its evaluation in human studies, humanized HLA-DR and HLA-DQ (human leukocyte antigen DR and DQ isotypes, respectively) transgenic mice elicited IFN-γ recall responses in an enzyme-linked immune absorbent spot (ELISpot)-based study. Moreover, human donor peripheral blood mononuclear cells (PBMCs) exposed to BpOmpW for 7 days showed T-cell proliferation. Finally, plasma from melioidosis survivors with diabetes recognized our BpOmpW vaccine antigen. Overall, the range of approaches used strongly indicated that BpOmpW elicits the necessary immune responses to combat melioidosis and bring this vaccine closer to clinical trials.
Collapse
MESH Headings
- Animals
- Antigens, Bacterial/immunology
- Bacterial Outer Membrane Proteins/immunology
- Bacterial Vaccines/administration & dosage
- Bacterial Vaccines/immunology
- Burkholderia pseudomallei/immunology
- Burkholderia pseudomallei/metabolism
- Burkholderia pseudomallei/physiology
- CD4-Positive T-Lymphocytes/immunology
- CD4-Positive T-Lymphocytes/metabolism
- CD4-Positive T-Lymphocytes/microbiology
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- CD8-Positive T-Lymphocytes/microbiology
- Cells, Cultured
- Diabetes Mellitus, Type 2/immunology
- Humans
- Interferon-gamma/immunology
- Interferon-gamma/metabolism
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Killer Cells, Natural/microbiology
- Male
- Melioidosis/immunology
- Melioidosis/microbiology
- Melioidosis/prevention & control
- Mice, Inbred C57BL
- Mice, Transgenic
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- T-Lymphocytes/microbiology
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- T-Lymphocytes, Regulatory/microbiology
- Mice
Collapse
Affiliation(s)
- Julen Tomás-Cortázar
- Conway Institute of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
- School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | - Lorenzo Bossi
- Immunxperts SA, a Nexelis Company, Gosselies, Belgium
| | - Conor Quinn
- Conway Institute of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
- School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | - Catherine J. Reynolds
- Department of Infectious Disease, Imperial College London, London, United Kingdom
- Lung Division, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - David K. Butler
- Department of Infectious Disease, Imperial College London, London, United Kingdom
- Lung Division, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Niamh Corcoran
- Conway Institute of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
- School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | - Maitiú Ó Murchú
- Conway Institute of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
- School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | - Eve McMahon
- Conway Institute of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
- School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | - Mahavir Singh
- LIONEX Diagnostics and Therapeutics GmbH, Brunswick, Germany
| | - Patpong Rongkard
- Mahidol-Oxford Tropical Medicine Research Unit, Bangkok, Thailand
- Oxford Centre for Global Health Research, University of Oxford, Oxford, United Kingdom
| | - Juan Anguita
- Inflammation and Macrophage Plasticity Lab, CIC bioGUNE-BRTA (Basque Research and Technology Alliance), Derio, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, Spain
| | - Alfonso Blanco
- Conway Institute of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | - Susanna J. Dunachie
- Mahidol-Oxford Tropical Medicine Research Unit, Bangkok, Thailand
- Oxford Centre for Global Health Research, University of Oxford, Oxford, United Kingdom
| | - Daniel Altmann
- Department of Infectious Disease, Imperial College London, London, United Kingdom
- Lung Division, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Rosemary J. Boyton
- Department of Infectious Disease, Imperial College London, London, United Kingdom
- Lung Division, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - Johan Arnold
- Immunxperts SA, a Nexelis Company, Gosselies, Belgium
| | | | - Siobhán McClean
- Conway Institute of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
- School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| |
Collapse
|
24
|
Yang H, Zhujin D, Marana MH, Dalsgaard I, Rzgar J, Heidi M, Asma KM, Per KW, Kurt B. Immersion vaccines against Yersinia ruckeri infection in rainbow trout: Comparative effects of strain differences. J Fish Dis 2021; 44:1937-1950. [PMID: 34392540 PMCID: PMC9290694 DOI: 10.1111/jfd.13507] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 06/17/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 05/07/2023]
Abstract
The protective effects of autogenous and commercial ERM immersion vaccines (bacterins based on Yersinia ruckeri, serotype O1, biotypes 1 and 2) for rainbow trout (Oncorhynchus mykiss) were compared in order to evaluate whether the use of local pathogen strains for immunization can improve protection. In addition, the effect of the bacterin concentration was established for the commercial product. Following sublethal challenge of vaccinated and non-vaccinated control fish with live bacteria, we followed the bacterial count in the fish (gills, liver and spleen). The expression of genes encoding immune factors (IL-1β, IL-6, IL-8, IL-10, IFN-γ, MHCI, MHCII, CD4, CD8, TCRβ, IgM, IgT, IgD, cathelicidins 1 and 2, SAA and C3) and densities of immune cells in organs were recorded. Both vaccines conferred protection as judged from the reduced bacterial load in exposed fish. Innate immune genes were upregulated in all groups following bacterial challenge but significantly more in non-vaccinated naive fish in which densities of SAA-positive immune cells increased. Immunoglobulin genes were upregulated on day 5 post-challenge, and fish vaccinated with the high commercial bacterin dosage showed increased IgM levels by ELISA on day 14 post-challenge, reflecting that the vaccine dosage was correlated to protection. In conclusion, both vaccine types offered protection to rainbow trout when exposed to live Y. ruckeri and no significant difference between commercial and autogenous vaccines was established.
Collapse
Affiliation(s)
- He Yang
- Laboratory of Aquatic PathobiologyDepartment of Veterinary and Animal SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze RiverNeijiang Normal UniversityNeijiangChina
| | - Ding Zhujin
- Laboratory of Aquatic PathobiologyDepartment of Veterinary and Animal SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
- School of Marine Science and FisheriesJiangsu Key Laboratory of Marine BiotechnologyJiangsu Ocean UniversityLianyungangChina
| | - Moonika H. Marana
- Laboratory of Aquatic PathobiologyDepartment of Veterinary and Animal SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Inger Dalsgaard
- National Institute of Aquatic ResourcesTechnical University of DenmarkLyngbyDenmark
| | - Jaafar Rzgar
- Laboratory of Aquatic PathobiologyDepartment of Veterinary and Animal SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Mathiessen Heidi
- Laboratory of Aquatic PathobiologyDepartment of Veterinary and Animal SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Karami M. Asma
- Laboratory of Aquatic PathobiologyDepartment of Veterinary and Animal SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Kania W. Per
- Laboratory of Aquatic PathobiologyDepartment of Veterinary and Animal SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Buchmann Kurt
- Laboratory of Aquatic PathobiologyDepartment of Veterinary and Animal SciencesFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
| |
Collapse
|
25
|
Lieberman NAP, Lin MJ, Xie H, Shrestha L, Nguyen T, Huang ML, Haynes AM, Romeis E, Wang QQ, Zhang RL, Kou CX, Ciccarese G, Dal Conte I, Cusini M, Drago F, Nakayama SI, Lee K, Ohnishi M, Konda KA, Vargas SK, Eguiluz M, Caceres CF, Klausner JD, Mitjà O, Rompalo A, Mulcahy F, Hook EW, Lukehart SA, Casto AM, Roychoudhury P, DiMaio F, Giacani L, Greninger AL. Treponema pallidum genome sequencing from six continents reveals variability in vaccine candidate genes and dominance of Nichols clade strains in Madagascar. PLoS Negl Trop Dis 2021; 15:e0010063. [PMID: 34936652 PMCID: PMC8735616 DOI: 10.1371/journal.pntd.0010063] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [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: 09/09/2021] [Revised: 01/06/2022] [Accepted: 12/06/2021] [Indexed: 11/19/2022] Open
Abstract
In spite of its immutable susceptibility to penicillin, Treponema pallidum (T. pallidum) subsp. pallidum continues to cause millions of cases of syphilis each year worldwide, resulting in significant morbidity and mortality and underscoring the urgency of developing an effective vaccine to curtail the spread of the infection. Several technical challenges, including absence of an in vitro culture system until very recently, have hampered efforts to catalog the diversity of strains collected worldwide. Here, we provide near-complete genomes from 196 T. pallidum strains-including 191 T. pallidum subsp. pallidum-sequenced directly from patient samples collected from 8 countries and 6 continents. Maximum likelihood phylogeny revealed that samples from most sites were predominantly SS14 clade. However, 99% (84/85) of the samples from Madagascar formed two of the five distinct Nichols subclades. Although recombination was uncommon in the evolution of modern circulating strains, we found multiple putative recombination events between T. pallidum subsp. pallidum and subsp. endemicum, shaping the genomes of several subclades. Temporal analysis dated the most recent common ancestor of Nichols and SS14 clades to 1717 (95% HPD: 1543-1869), in agreement with other recent studies. Rates of SNP accumulation varied significantly among subclades, particularly among different Nichols subclades, and was associated in the Nichols A subclade with a C394F substitution in TP0380, a ERCC3-like DNA repair helicase. Our data highlight the role played by variation in genes encoding putative surface-exposed outer membrane proteins in defining separate lineages, and provide a critical resource for the design of broadly protective syphilis vaccines targeting surface antigens.
Collapse
Affiliation(s)
- Nicole A. P. Lieberman
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, United States of America
| | - Michelle J. Lin
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, United States of America
| | - Hong Xie
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, United States of America
| | - Lasata Shrestha
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, United States of America
| | - Tien Nguyen
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, United States of America
| | - Meei-Li Huang
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, United States of America
| | - Austin M. Haynes
- Department of Medicine, Division of Allergy and Infectious Diseases, University of Washington, Seattle, Washington, United States of America
| | - Emily Romeis
- Department of Medicine, Division of Allergy and Infectious Diseases, University of Washington, Seattle, Washington, United States of America
| | - Qian-Qiu Wang
- Institute of Dermatology, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, China
- National Center for STD Control, China Centers for Disease Control and Prevention, Nanjing, China
| | - Rui-Li Zhang
- Department of Dermatology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Cai-Xia Kou
- Institute of Dermatology, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, China
- National Center for STD Control, China Centers for Disease Control and Prevention, Nanjing, China
| | - Giulia Ciccarese
- Health Sciences Department, Section of Dermatology, San Martino University Hospital, Genoa, Italy
| | - Ivano Dal Conte
- STI Clinic, Infectious Diseases Unit, University of Turin, Turin, Italy
| | - Marco Cusini
- Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Francesco Drago
- Health Sciences Department, Section of Dermatology, San Martino University Hospital, Genoa, Italy
| | - Shu-ichi Nakayama
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kenichi Lee
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Makoto Ohnishi
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kelika A. Konda
- Unit of Health, Sexuality and Human Development and Laboratory of Sexual Health, Universidad Peruana Cayetano-Heredia, Lima, Peru
- Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Silver K. Vargas
- Unit of Health, Sexuality and Human Development and Laboratory of Sexual Health, Universidad Peruana Cayetano-Heredia, Lima, Peru
| | - Maria Eguiluz
- Unit of Health, Sexuality and Human Development and Laboratory of Sexual Health, Universidad Peruana Cayetano-Heredia, Lima, Peru
| | - Carlos F. Caceres
- Unit of Health, Sexuality and Human Development and Laboratory of Sexual Health, Universidad Peruana Cayetano-Heredia, Lima, Peru
| | - Jeffrey D. Klausner
- Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Oriol Mitjà
- Fight Aids and Infectious Diseases Foundation, Hospital Germans Trias i Pujol, Barcelona, Spain
- Lihir Medical Centre-International SOS, Newcrest Mining, Lihir Island, Papua New Guinea
| | - Anne Rompalo
- Department of Infectious Diseases, Johns Hopkins Medical Institutions, Baltimore, Maryland, United States of America
| | - Fiona Mulcahy
- Department of Genito Urinary Medicine and Infectious Diseases, St James’s Hospital, Dublin, Ireland
| | - Edward W. Hook
- Department of Medicine, University of Alabama, Birmingham, Birmingham, Alabama, United States of America
| | - Sheila A. Lukehart
- Department of Medicine, Division of Allergy and Infectious Diseases, University of Washington, Seattle, Washington, United States of America
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
| | - Amanda M. Casto
- Department of Medicine, Division of Allergy and Infectious Diseases, University of Washington, Seattle, Washington, United States of America
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Pavitra Roychoudhury
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, United States of America
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Frank DiMaio
- Department of Biochemistry, University of Washington, Seattle, Washington, United States of America
| | - Lorenzo Giacani
- Department of Medicine, Division of Allergy and Infectious Diseases, University of Washington, Seattle, Washington, United States of America
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
| | - Alexander L. Greninger
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, United States of America
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| |
Collapse
|
26
|
Abdollahi S, Raoufi Z, Fakoor MH. Physicochemical and structural characterization, epitope mapping and vaccine potential investigation of a new protein containing Tetratrico Peptide Repeats of Acinetobacter baumannii: An in-silico and in-vivo approach. Mol Immunol 2021; 140:22-34. [PMID: 34649027 DOI: 10.1016/j.molimm.2021.10.004] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 09/13/2021] [Accepted: 10/04/2021] [Indexed: 11/24/2022]
Abstract
Acinetobacter baumannii is an opportunistic multidrug-resistant pathogen that causes a significant mortality rate. The proteins containing Tetratrico Peptide Repeats (TPRs) are involved in the pathogenicity and virulence of bacteria and have different roles such as transfer of bacterial virulence factors to host cells, binding to the host cells and inhibition of phagolysosomal maturation. So, in this study, physicochemical properties of a new protein containing TPRs in A. baumannii which was named PcTPRs1 by this study were characterized and its 3D structure was predicted by in-silico tools. The protein B and T cell epitopes were mapped and its vaccine potential was in-silico and in-vivo investigated. Domain analysis indicated that the protein contains the Flp pilus assembly protein TadD domain which has three TPRs. The helix is dominant in the protein structure, and this protein is an outer membrane antigen which, is extremely conserved among A. baumannii strains; thus, has good properties to be applied as a recombinant vaccine. The best-predicted and refined model was applied in ligand-binding sites and conformational epitopes prediction. Based on epitope mapping results, several epitopes were characterized which could stimulate both immune systems. BLAST results showed the introduced epitopes are completely conserved among A. baumannii strains. The in-vivo analysis indicates that a 101 amino acid fragment of the protein which contains the best selected epitope, can produce a good protectivity against A. baumannii as well as the whole TPR protein and thus could be investigated as an effective subunit and potential vaccines.
Collapse
Affiliation(s)
- Sajad Abdollahi
- Department of Biology, Faculty of Basic Science, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran.
| | - Zeinab Raoufi
- Department of Biology, Faculty of Basic Science, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran.
| | | |
Collapse
|
27
|
Jalal K, Khan K, Ahmad D, Hayat A, Basharat Z, Abbas MN, Alghamdi S, Almehmadi M, Sahibzada MUK. Pan-Genome Reverse Vaccinology Approach for the Design of Multi-Epitope Vaccine Construct against Escherichia albertii. Int J Mol Sci 2021; 22:12814. [PMID: 34884620 PMCID: PMC8657462 DOI: 10.3390/ijms222312814] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 11/21/2022] Open
Abstract
Escherichia albertii is characterized as an emerging pathogen, causing enteric infections. It is responsible for high mortality rate, especially in children, elderly, and immunocompromised people. To the best of our knowledge, no vaccine exists to curb this pathogen. Therefore, in current study, we aimed to identify potential vaccine candidates and design chimeric vaccine models against Escherichia albertii from the analysis of publicly available data of 95 strains, using a reverse vaccinology approach. Outer-membrane proteins (n = 4) were identified from core genome as vaccine candidates. Eventually, outer membrane Fimbrial usher (FimD) protein was selected as a promiscuous vaccine candidate and utilized to construct a potential vaccine model. It resulted in three epitopes, leading to the design of twelve vaccine constructs. Amongst these, V6 construct was found to be highly immunogenic, non-toxic, non-allergenic, antigenic, and most stable. This was utilized for molecular docking and simulation studies against six HLA and two TLR complexes. This construct can therefore be used for pan-therapy against different strains of E. albertii and needs to be tested in vitro and in vivo.
Collapse
Affiliation(s)
- Khurshid Jalal
- International Center for Chemical and Biological Science, H.E.J. Research Institute of Chemistry, University of Karachi, Karachi 75270, Pakistan; (K.J.); (D.A.)
| | - Kanwal Khan
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Science, University of Karachi, Karachi 75270, Pakistan;
| | - Diyar Ahmad
- International Center for Chemical and Biological Science, H.E.J. Research Institute of Chemistry, University of Karachi, Karachi 75270, Pakistan; (K.J.); (D.A.)
| | - Ajmal Hayat
- Department of Pharmacy, Abdul Wali Khan University, Mardan 23200, Pakistan;
| | - Zarrin Basharat
- Jamil-ur-Rahman Center for Genome Research, Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Muhammad Naseer Abbas
- Department of Pharmacy, Kohat University of Science and Technology, Kohat 26000, Pakistan;
| | - Saad Alghamdi
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah 21955, Saudi Arabia;
| | - Mazen Almehmadi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia;
| | | |
Collapse
|
28
|
Abstract
Tuberculosis (TB) is a highly contagious disease that mostly affects the lungs and is caused by a bacterial pathogen, Mycobacterium tuberculosis. The associated mortality rate of TB is much higher compared to any other disease and the situation is more worrisome by the rapid emergence of drug resistant strains. Bacillus Calmette-Guerin (BCG) is the only licensed attenuated vaccine available for use in humans however, many countries have stopped its use as it fails to confer protective immunity. Therefore, urgent efforts are required to identify new and safe vaccine candidates that are not only provide high immune protection but also have broad spectrum applicability. Considering this, herein, I performed an extensive computational vaccine analysis to investigate 200 complete sequenced genomes of M. tuberculosis to identify core vaccine candidates that harbor safe, antigenic, non-toxic, and non-allergic epitopes. To overcome literature reported limitations of epitope-based vaccines, I carried out additional analysis by designing a multi-epitopes vaccine to achieve maximum protective immunity as well as to make experimental follow up studies easy by selecting a vaccine that can be easily analyzed because of its favorable physiochemical profile. Based on these analyses, I identified two potential vaccine proteins that fulfill all required vaccine properties. These two vaccine proteins are diacylglycerol acyltransferase and ESAT-6-like protein. Epitopes: DSGGYNANS from diacylglycerol acyltransferase and AGVQYSRAD, ADEEQQQAL, and VSRADEEQQ from ESAT-6-like protein were found to cover all necessary parameters and thus used in a multi-epitope vaccine construct. The designed vaccine is depicting a high binding affinity for different immune receptors and shows stable dynamics and rigorous van der Waals and electrostatic binding energies. The vaccine also simulates profound primary, secondary, tertiary immunoglobulin production as well as high interleukins and interferons count. In summary, the designed vaccine is ideal to be evaluated experimentally to decipher its real biological efficacy in controlling drug resistant infections of M. tuberculosis.
Collapse
Affiliation(s)
- Aqel Albutti
- Department of Medical Biotechnology, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia.
| |
Collapse
|
29
|
Matsumoto M, Fischer U, Sano M, Kato G. Cell-mediated immune response against mycolic acids of Mycobacteroides salmoniphilum in rainbow trout Oncorhynchus mykiss. Dev Comp Immunol 2021; 124:104195. [PMID: 34217784 DOI: 10.1016/j.dci.2021.104195] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/29/2021] [Accepted: 06/30/2021] [Indexed: 06/13/2023]
Abstract
Mycobacteriosis caused by Mycobacterium spp. causes economic damages to the world aquaculture industry. In mammals, mycolic acids contained in the cell wall of Mycobacterium spp. are presented by CD1b molecule as lipid antigens and induce cell-mediated immunity (CMI). Here, we investigated CMI responses against the mycolic acids of Mycobacterioides salmoniphilum in a CD1-lacking teleost fish, rainbow trout. After stimulation of trout leukocytes with mycolic acids, the number and percentage of CD8α+ T cells increased. Fish immunized with mycolic acids showed an up-regulation of IFN-γ. Further, in vitro re-stimulation of leukocytes derived from immunized fish resulted in proliferation of CD8α+ cells. These data suggest that mycolic acids are recognized as lipid antigens resulting in an activation of rainbow trout CD8α+ cells and up-regulation of the Th1 cytokine IFN-γ. The mycolic acids are promising candidates for vaccines to activate CD8α+ T cells against fish mycobacteriosis.
Collapse
Affiliation(s)
- Megumi Matsumoto
- Tokyo University of Marine Science and Technology, Department of Marine Bioscience, 4-5-7 Konan, Minato-ku, Tokyo, 108-8477, Japan
| | - Uwe Fischer
- Friedrich-Loeffler-Institut, Südufer 10, 17493, Greifswald, Germany
| | - Motohiko Sano
- Tokyo University of Marine Science and Technology, Department of Marine Bioscience, 4-5-7 Konan, Minato-ku, Tokyo, 108-8477, Japan
| | - Goshi Kato
- Tokyo University of Marine Science and Technology, Department of Marine Bioscience, 4-5-7 Konan, Minato-ku, Tokyo, 108-8477, Japan.
| |
Collapse
|
30
|
Pham TH, Rao S, Cheng TC, Wang PC, Chen SC. The moonlighting protein fructose 1,6-bisphosphate aldolase as a potential vaccine candidate against Photobacterium damselae subsp. piscicida in Asian sea bass (Lates calcarifer). Dev Comp Immunol 2021; 124:104187. [PMID: 34186149 DOI: 10.1016/j.dci.2021.104187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 03/22/2021] [Revised: 06/25/2021] [Accepted: 06/25/2021] [Indexed: 06/13/2023]
Abstract
Vaccination is the most effective, safe, and environmentally friendly method to prevent the outbreak of Photobacterium damselae subsp. piscicida (Phdp), a dangerous pathogen in aquaculture worldwide. Here, recombinant proteins of catalase, superoxide dismutase, isocitrate dehydrogenase, fructose 1,6-bisphosphate aldolase (Fba), and a mixture of all four proteins were investigated for their immunoprotective effects against photobacteriosis in Asian sea bass (Lates calcarifer). After immunization, experimental fish showed an increase in specific antibody levels and lysozyme activities, especially the Fba group. After a lethal challenge with Phdp strain AOD105021, the Fba group achieved the highest relative percentage of survival rate (70.21%) and a significantly lower bacterial load in the spleens than other groups 3 days after infection. The results suggest that Fba is a good candidate for subunit vaccine development against photobacteriosis in fish.
Collapse
Affiliation(s)
- Trung Hieu Pham
- International Degree Program of Ornamental Fish Technology and Aquatic Animal Health, International College, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan.
| | - Shreesha Rao
- Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan.
| | - Ta-Chih Cheng
- Department of Tropical Agriculture and International Cooperation, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan; Research Centre for Animal Biologics, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan.
| | - Pei-Chi Wang
- International Degree Program of Ornamental Fish Technology and Aquatic Animal Health, International College, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan; Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan; Research Centre for Fish Vaccine and Diseases, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan; Southern Taiwan Fish Diseases Research Centre, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan.
| | - Shih-Chu Chen
- International Degree Program of Ornamental Fish Technology and Aquatic Animal Health, International College, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan; Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan; Research Centre for Animal Biologics, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan; Research Centre for Fish Vaccine and Diseases, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan; Southern Taiwan Fish Diseases Research Centre, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan.
| |
Collapse
|
31
|
Park S, Kirthika P, Jawalagatti V, Senevirathne A, Lee JH. Salmonella delivered Lawsonia intracellularis novel epitope-fusion vaccines enhance immunogenicity and confers protection against Lawsonia intracellularis in mice. Vet Microbiol 2021; 263:109264. [PMID: 34710766 DOI: 10.1016/j.vetmic.2021.109264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 06/08/2021] [Accepted: 10/18/2021] [Indexed: 11/18/2022]
Abstract
Attenuated Salmonella-mediated vaccine constructs were designed by employing selected discontinuous immunodominant epitopes of LatA, FliC, and PAL antigens of Lawsonia intracellularis to create vaccines against porcine proliferative enteropathy (PPE). Whole protein sequences were subjected to in silico prediction of dominant epitopes, the stability of fusions, and hydropathicity and to ensure that the fused epitopes were feasible for expression in a Salmonella system. Two fusion constructs, one comprising LatA epitopes and the other FliC-PAL-FliC epitopes, were built into a prokaryotic constitutive expression system and transformed into the auxotrophic Salmonella host strain JOL1800. Epitope selection eliminated the majority of less immunodominant regions of target proteins and resulted in an efficient secretion platform that induced significant protective responses. Overall, our results demonstrated that the Salmonella-mediated LI- multi-epitope vaccines elicited significant humoral and cellular immune responses. Additionally, the challenge study suggested that the vaccinated mice were protected against experimental Lawsonia intracellularis infection. Based on the outcomes of the study, Salmonella-mediated LI- multi-epitope vaccines have the potential to prevent PPE.
Collapse
Affiliation(s)
- Sungwoo Park
- College of Veterinary Medicine, Jeonbuk National University, Iksan Campus, 54596, Republic of Korea
| | - Perumalraja Kirthika
- College of Veterinary Medicine, Jeonbuk National University, Iksan Campus, 54596, Republic of Korea
| | - Vijayakumar Jawalagatti
- College of Veterinary Medicine, Jeonbuk National University, Iksan Campus, 54596, Republic of Korea
| | - Amal Senevirathne
- College of Veterinary Medicine, Jeonbuk National University, Iksan Campus, 54596, Republic of Korea
| | - John Hwa Lee
- College of Veterinary Medicine, Jeonbuk National University, Iksan Campus, 54596, Republic of Korea.
| |
Collapse
|
32
|
Zhang BZ, Hu D, Dou Y, Xiong L, Wang X, Hu J, Xing SZ, Li W, Cai JP, Jin M, Zhang M, Lin Q, Li M, Yuen KY, Huang JD. Identification and Evaluation of Recombinant Outer Membrane Proteins as Vaccine Candidates Against Klebsiella pneumoniae. Front Immunol 2021; 12:730116. [PMID: 34745099 PMCID: PMC8564470 DOI: 10.3389/fimmu.2021.730116] [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: 06/24/2021] [Accepted: 09/20/2021] [Indexed: 11/13/2022] Open
Abstract
Klebsiella pneumoniae found in the normal flora of the human oral and intestinal tract mainly causes hospital-acquired infections but can also cause community-acquired infections. To date, most clinical trials of vaccines against K. pneumoniae have ended in failure. Furthermore, no single conserved protein has been identified as an antigen candidate to accelerate vaccine development. In this study, we identified five outer membrane proteins of K. pneumoniae, namely, Kpn_Omp001, Kpn_Omp002, Kpn_Omp003, Kpn_Omp004, and Kpn_Omp005, by using reliable second-generation proteomics and bioinformatics. Mice vaccinated with these five KOMPs elicited significantly higher antigen-specific IgG, IgG1, and IgG2a. However, only Kpn_Omp001, Kpn_Omp002, and Kpn_Omp005 were able to induce a protective immune response with two K. pneumoniae infection models. These protective effects were accompanied by the involvement of different immune responses induced by KOMPs, which included KOMPs-specific IFN-γ-, IL4-, and IL17A-mediated immune responses. These findings indicate that Kpn_Omp001, Kpn_Omp002, and Kpn_Omp005 are three potential Th1, Th2, and Th17 candidate antigens, which could be developed into multivalent and serotype-independent vaccines against K. pneumoniae infection.
Collapse
Affiliation(s)
- Bao-Zhong Zhang
- Chinese Academy of Sciences (CAS) Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Danyu Hu
- Chinese Academy of Sciences (CAS) Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Ying Dou
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong, Hong Kong, SAR China
| | - Lifeng Xiong
- Department of Microbiology, The University of Hong Kong, Hong Kong, Hong Kong, SAR China
| | - Xiaolei Wang
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong, Hong Kong, SAR China
| | - Jingchu Hu
- Chinese Academy of Sciences (CAS) Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Shao-Zhen Xing
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong, Hong Kong, SAR China
| | - Wenjun Li
- Chinese Academy of Sciences (CAS) Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Jian-Piao Cai
- Department of Microbiology, The University of Hong Kong, Hong Kong, Hong Kong, SAR China
| | - Meiling Jin
- Chinese Academy of Sciences (CAS) Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Mengya Zhang
- Vaccine and Antibody Engineering, HKU-Zhejiang Institute of Research and Innovation (HKU-ZIRI), Hangzhou, China
| | - Qiubin Lin
- Vaccine and Antibody Engineering, HKU-Zhejiang Institute of Research and Innovation (HKU-ZIRI), Hangzhou, China
| | - Min Li
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, Hong Kong, SAR China
| | - Kwok-Yung Yuen
- Department of Microbiology, The University of Hong Kong, Hong Kong, Hong Kong, SAR China
- State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Hong Kong, Hong Kong, SAR China
| | - Jian-Dong Huang
- Chinese Academy of Sciences (CAS) Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- School of Biomedical Sciences, The University of Hong Kong, Hong Kong, Hong Kong, SAR China
- Vaccine and Antibody Engineering, HKU-Zhejiang Institute of Research and Innovation (HKU-ZIRI), Hangzhou, China
| |
Collapse
|
33
|
Fu YW, Yao ZJ, He MH, Wang ZP, Chen WF, Cui M, Zhang QZ. Expression analysis and tissue localization of IgZ in the grouper Epinephelus coioides after Vibrio alginolyticus infection and vaccination. J Fish Dis 2021; 44:1647-1655. [PMID: 34133777 DOI: 10.1111/jfd.13471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 04/20/2021] [Accepted: 05/17/2021] [Indexed: 06/12/2023]
Abstract
The orange-spotted grouper (Epinephelus coioides) is an important marine farmed fish in China. It is affected by the bacterial pathogen Vibrio alginolyticus, which causes high mortality and substantial economic losses. We studied the transcriptional changes of the IgZ gene in E. coioides following V. alginolyticus stimulation and investigated the distribution of IgZ in different tissues. The highest expression level of IgZ occurred in the head kidney. When fish were stimulated with live and inactivated V. alginolyticus, the expression levels of IgZ in the head kidney, spleen, intestine, gills and blood cells were significantly upregulated. In an in situ hybridization study, IgZ mRNA-positive cells were detected in the head kidney, spleen and gill, but positive signals were not detected in the liver and intestine. IgZ-labelled cells increased in the head kidney, spleen and gills post-infection with V. alginolyticus for 21 days. The present study provides additional evidence that IgZ is involved in mucosal immune responses and helps explain the role of IgZ in E. coioides defence against V. alginolyticus infection.
Collapse
Affiliation(s)
- Yao-Wu Fu
- Key Laboratory of Aquatic Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering Ministry of Education, Institute of Hydrobiology, Jinan University, Guangzhou, China
| | - Zhan-Juan Yao
- Key Laboratory of Aquatic Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering Ministry of Education, Institute of Hydrobiology, Jinan University, Guangzhou, China
| | - Meng-Han He
- Key Laboratory of Aquatic Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering Ministry of Education, Institute of Hydrobiology, Jinan University, Guangzhou, China
| | - Zuo-Pei Wang
- Key Laboratory of Aquatic Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering Ministry of Education, Institute of Hydrobiology, Jinan University, Guangzhou, China
| | - Wei-Feng Chen
- Key Laboratory of Aquatic Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering Ministry of Education, Institute of Hydrobiology, Jinan University, Guangzhou, China
| | - Miao Cui
- Key Laboratory of Aquatic Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering Ministry of Education, Institute of Hydrobiology, Jinan University, Guangzhou, China
| | - Qi-Zhong Zhang
- Key Laboratory of Aquatic Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering Ministry of Education, Institute of Hydrobiology, Jinan University, Guangzhou, China
| |
Collapse
|
34
|
Wang H, Guo M, Tang X, Xing J, Sheng X, Chi H, Zhan W. Immune adjuvant effects of interferon-gamma (IFN-γ) of flounder (Paralichthys olivaceus) against Edwardsiella tarda. Dev Comp Immunol 2021; 123:104159. [PMID: 34081944 DOI: 10.1016/j.dci.2021.104159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 03/24/2021] [Revised: 05/28/2021] [Accepted: 05/28/2021] [Indexed: 06/12/2023]
Abstract
IFN-γ plays a key role in T-cell activation and the establishment of the adaptive immune response, which has a potential as a cytokine adjuvant in the context of vaccination. In this study, we evaluated the immune adjuvant effects of two forms of flounder (Paralichthys olivaceus) IFN-γ, including pcDNA3.1-IFN-γ (pcIFN-γ) and recombinant IFN-γ (rIFN-γ), and comparatively analyzed the immune responses of flounder to E. tarda subunit vaccine rOmpV. The results showed that vaccination with rOmpV plus pcIFN-γ or rIFN-γ produced a relative percent survival of 57% and 71%, respectively, which were significantly higher than that of the control groups, rOmpV plus pcN3 (36%) or rHis (40%). Compared with the two control groups, vaccination with rOmpV plus pcIFN-γ or rIFN-γ could induce significantly higher levels of specific serum antibodies and sIg + lymphocytes in peripheral blood, spleen and head kidney, and significantly higher upregulated expressions of CD4-1, CD8α, IgM, MHC Ⅰα, MHC Ⅱα, IL-1β and TNF-α were also detected in rOmpV plus pcIFN-γ or rIFN-γ vaccinated fish. In addition, compared with pcIFN-γ, rOmpV co-vaccination with rIFN-γ elicited higher levels of sIg + lymphocytes, specific serum antibodies and several immune-related genes expressions in vaccinated flounder. These results demonstrated that rOmpV co-vaccination with rIFN-γ or pcIFN-γ could both boost the immune responses and evoke highly protective effects against E. tarda, indicating that flounder IFN-γ is a promising adjuvant candidate for fish vaccination via an injection administering route.
Collapse
Affiliation(s)
- Hongxiang Wang
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, PR China
| | - Ming Guo
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, PR China
| | - Xiaoqian Tang
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China
| | - Jing Xing
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China
| | - Xiuzhen Sheng
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China
| | - Heng Chi
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China
| | - Wenbin Zhan
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China.
| |
Collapse
|
35
|
Di Benedetto R, Alfini R, Carducci M, Aruta MG, Lanzilao L, Acquaviva A, Palmieri E, Giannelli C, Necchi F, Saul A, Micoli F. Novel Simple Conjugation Chemistries for Decoration of GMMA with Heterologous Antigens. Int J Mol Sci 2021; 22:ijms221910180. [PMID: 34638530 PMCID: PMC8508390 DOI: 10.3390/ijms221910180] [Citation(s) in RCA: 4] [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: 08/31/2021] [Revised: 09/17/2021] [Accepted: 09/17/2021] [Indexed: 11/30/2022] Open
Abstract
Outer Membrane Vesicles (OMV) constitute a promising platform for the development of efficient vaccines. OMV can be decorated with heterologous antigens (proteins or polysaccharides), becoming attractive novel carriers for the development of multicomponent vaccines. Chemical conjugation represents a tool for linking antigens, also from phylogenetically distant pathogens, to OMV. Here we develop two simple and widely applicable conjugation chemistries targeting proteins or lipopolysaccharides on the surface of Generalized Modules for Membrane Antigens (GMMA), OMV spontaneously released from Gram-negative bacteria mutated to increase vesicle yield and reduce potential reactogenicity. A Design of Experiment approach was used to identify optimal conditions for GMMA activation before conjugation, resulting in consistent processes and ensuring conjugation efficiency. Conjugates produced by both chemistries induced strong humoral response against the heterologous antigen and GMMA. Additionally, the use of the two orthogonal chemistries allowed to control the linkage of two different antigens on the same GMMA particle. This work supports the further advancement of this novel platform with great potential for the design of effective vaccines.
Collapse
|
36
|
Humphries DC, O’Connor RA, Larocque D, Chabaud-Riou M, Dhaliwal K, Pavot V. Pulmonary-Resident Memory Lymphocytes: Pivotal Orchestrators of Local Immunity Against Respiratory Infections. Front Immunol 2021; 12:738955. [PMID: 34603321 PMCID: PMC8485048 DOI: 10.3389/fimmu.2021.738955] [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: 07/09/2021] [Accepted: 09/01/2021] [Indexed: 12/12/2022] Open
Abstract
There is increasing evidence that lung-resident memory T and B cells play a critical role in protecting against respiratory reinfection. With a unique transcriptional and phenotypic profile, resident memory lymphocytes are maintained in a quiescent state, constantly surveying the lung for microbial intruders. Upon reactivation with cognate antigen, these cells provide rapid effector function to enhance immunity and prevent infection. Immunization strategies designed to induce their formation, alongside novel techniques enabling their detection, have the potential to accelerate and transform vaccine development. Despite most data originating from murine studies, this review will discuss recent insights into the generation, maintenance and characterisation of pulmonary resident memory lymphocytes in the context of respiratory infection and vaccination using recent findings from human and non-human primate studies.
Collapse
Affiliation(s)
- Duncan C. Humphries
- Centre for Inflammation Research, Queen’s Medical Research Institute, Edinburgh BioQuarter, The University of Edinburgh, Edinburgh, United Kingdom
- Sanofi Pasteur, R&D, Marcy l’Etoile, Lyon, France
| | - Richard A. O’Connor
- Centre for Inflammation Research, Queen’s Medical Research Institute, Edinburgh BioQuarter, The University of Edinburgh, Edinburgh, United Kingdom
| | | | | | - Kevin Dhaliwal
- Centre for Inflammation Research, Queen’s Medical Research Institute, Edinburgh BioQuarter, The University of Edinburgh, Edinburgh, United Kingdom
| | | |
Collapse
|
37
|
Cohen ND, Kahn SK, Cywes-Bentley C, Ramirez-Cortez S, Schuckert AE, Vinacur M, Bordin AI, Pier GB. Serum Antibody Activity against Poly- N-Acetyl Glucosamine (PNAG), but Not PNAG Vaccination Status, Is Associated with Protecting Newborn Foals against Intrabronchial Infection with Rhodococcus equi. Microbiol Spectr 2021; 9:e0063821. [PMID: 34319137 PMCID: PMC8552712 DOI: 10.1128/spectrum.00638-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 06/21/2021] [Accepted: 07/07/2021] [Indexed: 12/22/2022] Open
Abstract
Rhodococcus equi is a prevalent cause of pneumonia in foals worldwide. Our laboratory has demonstrated that vaccination against the surface polysaccharide β-1→6-poly-N-acetylglucosamine (PNAG) protects foals against intrabronchial infection with R. equi when challenged at age 28 days. However, it is important that the efficacy of this vaccine be evaluated in foals when they are infected at an earlier age, because foals are naturally exposed to virulent R. equi in their environment from birth and because susceptibility is inversely related to age in foals. Using a randomized, blind experimental design, we evaluated whether maternal vaccination against PNAG protected foals against intrabronchial infection with R. equi 6 days after birth. Vaccination of mares per se did not significantly reduce the incidence of pneumonia in foals; however, activities of antibody against PNAG or for deposition of complement component 1q onto PNAG was significantly (P < 0.05) higher among foals that did not develop pneumonia than among foals that developed pneumonia. Results differed between years, with evidence of protection during 2018 but not 2020. In the absence of a licensed vaccine, further evaluation of the PNAG vaccine is warranted, including efforts to optimize the formulation and dose of this vaccine. IMPORTANCE Pneumonia caused by R. equi is an important cause of disease and death in foals worldwide for which a licensed vaccine is lacking. Foals are exposed to R. equi in their environment from birth, and they appear to be infected soon after parturition at an age when innate and adaptive immune responses are diminished. Results of this study indicate that higher activity of antibodies recognizing PNAG was associated with protection against R. equi pneumonia, indicating the need for further optimization of maternal vaccination against PNAG to protect foals against R. equi pneumonia.
Collapse
Affiliation(s)
- Noah D. Cohen
- Equine Infectious Disease Laboratory, Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Susanne K. Kahn
- Equine Infectious Disease Laboratory, Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Colette Cywes-Bentley
- Department of Medicine, Brigham & Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Sophia Ramirez-Cortez
- Equine Infectious Disease Laboratory, Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Amanda E. Schuckert
- Equine Infectious Disease Laboratory, Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Mariana Vinacur
- Department of Medicine, Brigham & Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Angela I. Bordin
- Equine Infectious Disease Laboratory, Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Gerald B. Pier
- Department of Medicine, Brigham & Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| |
Collapse
|
38
|
Rawal K, Sinha R, Abbasi BA, Chaudhary A, Nath SK, Kumari P, Preeti P, Saraf D, Singh S, Mishra K, Gupta P, Mishra A, Sharma T, Gupta S, Singh P, Sood S, Subramani P, Dubey AK, Strych U, Hotez PJ, Bottazzi ME. Identification of vaccine targets in pathogens and design of a vaccine using computational approaches. Sci Rep 2021; 11:17626. [PMID: 34475453 PMCID: PMC8413327 DOI: 10.1038/s41598-021-96863-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [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: 09/30/2020] [Accepted: 08/10/2021] [Indexed: 02/07/2023] Open
Abstract
Antigen identification is an important step in the vaccine development process. Computational approaches including deep learning systems can play an important role in the identification of vaccine targets using genomic and proteomic information. Here, we present a new computational system to discover and analyse novel vaccine targets leading to the design of a multi-epitope subunit vaccine candidate. The system incorporates reverse vaccinology and immuno-informatics tools to screen genomic and proteomic datasets of several pathogens such as Trypanosoma cruzi, Plasmodium falciparum, and Vibrio cholerae to identify potential vaccine candidates (PVC). Further, as a case study, we performed a detailed analysis of the genomic and proteomic dataset of T. cruzi (CL Brenner and Y strain) to shortlist eight proteins as possible vaccine antigen candidates using properties such as secretory/surface-exposed nature, low transmembrane helix (< 2), essentiality, virulence, antigenic, and non-homology with host/gut flora proteins. Subsequently, highly antigenic and immunogenic MHC class I, MHC class II and B cell epitopes were extracted from top-ranking vaccine targets. The designed vaccine construct containing 24 epitopes, 3 adjuvants, and 4 linkers was analysed for its physicochemical properties using different tools, including docking analysis. Immunological simulation studies suggested significant levels of T-helper, T-cytotoxic cells, and IgG1 will be elicited upon administration of such a putative multi-epitope vaccine construct. The vaccine construct is predicted to be soluble, stable, non-allergenic, non-toxic, and to offer cross-protection against related Trypanosoma species and strains. Further, studies are required to validate safety and immunogenicity of the vaccine.
Collapse
Affiliation(s)
- Kamal Rawal
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India.
| | - Robin Sinha
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Bilal Ahmed Abbasi
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Amit Chaudhary
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Swarsat Kaushik Nath
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Priya Kumari
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - P Preeti
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Devansh Saraf
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Shachee Singh
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Kartik Mishra
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Pranjay Gupta
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Astha Mishra
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Trapti Sharma
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Srijanee Gupta
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Prashant Singh
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Shriya Sood
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Preeti Subramani
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Aman Kumar Dubey
- Centre for Computational Biology and Bioinformatics, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, India
| | - Ulrich Strych
- Texas Children's Hospital Center for Vaccine Development, Departments of Pediatrics and Molecular Virology and Microbiology, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Peter J Hotez
- Texas Children's Hospital Center for Vaccine Development, Departments of Pediatrics and Molecular Virology and Microbiology, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, USA
- Department of Biology, Baylor University, Waco, TX, USA
| | - Maria Elena Bottazzi
- Texas Children's Hospital Center for Vaccine Development, Departments of Pediatrics and Molecular Virology and Microbiology, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, USA
- Department of Biology, Baylor University, Waco, TX, USA
| |
Collapse
|
39
|
Sayed M, Ozdemir O, Essa M, Olivier A, Karsi A, Lawrence ML, Abdelhamed H. Virulence and live vaccine potential of Edwardsiella piscicida phoP and phoQ mutants in catfish against edwardsiellosis. J Fish Dis 2021; 44:1463-1474. [PMID: 34037985 DOI: 10.1111/jfd.13453] [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] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/10/2021] [Accepted: 05/11/2021] [Indexed: 06/12/2023]
Abstract
Edwardsiella piscicida is a Gram-negative facultative intracellular bacterium causing edwardsiellosis in catfish, the largest aquaculture industry in the United States. A safe and effective vaccine is an urgent need to avoid economic losses associated with E. piscicida outbreaks. PhoP/PhoQ is a two-component signal transduction system (TCS) that plays an important role in bacterial pathogenesis through sense and response to environmental and host stress signals. This study aimed to explore the contribution of PhoQ/PhoP in E. piscicida virulence and develop live attenuated vaccines against E. piscicida infection in channel catfish (Ictalurus punctatus) and hybrid catfish (channel catfish ♀ × blue catfish (I. furcatus) ♂). In the current study, two in-frame deletion mutants were constructed by deleting phoP (ETAC_09785) and phoQ (ETAC_09790) genes in E. piscicida strain C07-087, and the virulence and protection efficacy of the constructed strains were evaluated in catfish following intraperitoneal injection. Both EpΔphoP and EpΔphoQ strains had a delayed adaptation to oxidative stress (0.2% H2 O2 ) compared to E. piscicida wild type. The EpΔphoP and EpΔphoQ mutants produced significantly less biofilm compared to wild-type E. piscicida. Notably, EpΔphoP and EpΔphoQ mutants were significantly attenuated in channel catfish compared with wild-type E. piscicida (6.63% and 4.17% versus 49.16% mortalities), and channel catfish vaccinated with EpΔphoP and EpΔphoQ were significantly protected (95.65% and 97.92% survival) against E. piscicida infection at 21 days post-vaccination. In hybrid catfish, EpΔphoP was significantly more attenuated than EpΔphoQ, but EpΔphoQ provided significantly better protection than EpΔphoP. EpΔphoP and EpΔphoQ strains both induced specific antibodies in channel catfish against E. piscicida at 14 and 21 days post-vaccination. This result indicated that EpΔphoP and EpΔphoQ mutants were safe and protective in channel catfish fingerlings, while EpΔphoP was safe in hybrid catfish. Our findings show that PhoP and PhoQ are required for adaptation to oxidative stress and biofilm formation and may help E. piscicida face tough environmental challenges; thus, functional PhoP and PhoQ are critical for a successful infection.
Collapse
Affiliation(s)
- Mohamed Sayed
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, USA
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Ozan Ozdemir
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, USA
| | - Manal Essa
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Alicia Olivier
- Department of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, USA
| | - Attila Karsi
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, USA
| | - Mark L Lawrence
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, USA
| | - Hossam Abdelhamed
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, USA
| |
Collapse
|
40
|
Emami Mahmoudabadi FS, Vakili A, Nazarian S, Amani J, Mousavi Gargari SL. Immunogenic Potency of a Chimeric Protein Comprising InvH and IpaD against Salmonella and Shigella spp. Iran J Allergy Asthma Immunol 2021; 20:484-493. [PMID: 34418902] [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] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 02/07/2021] [Indexed: 06/13/2023]
Abstract
Shigella and Salmonella cause serious problems in many subjects, including young children and the elderly, especially in developing countries. Chimeric proteins carrying immunogens increase immune response. In-silico tools are applied to design vaccine candidates. Invasion plasmid antigens D (ipaD) gene is one of the Shigella virulence factors. The N-terminal region of the IpaD plays a significant role in invading the host cell. Invasion protein H (invH) gene plays important role in bacterial adherence and entry into epithelial cells. A recombinant chimeric construct, containing IpaD and InvH was designed and used as a vaccine candidate against Shigella and Salmonella enteritidis. After bioinformatics assessments, the construct was designed, synthesized, and expressed in E.coli. Chimeric protein, IpaD, and InvH were purified with Ni-NTA chromatography. Purified proteins were confirmed with western blotting and then were injected into separate mice groups. The antibody titer was estimated with an enzyme-linked immunosorbent assay (ELISA). Mice were challenged with 10, 100, and 1000 LD50 of Salmonella, and the sereny test was performed for Shigella. The Codon adaptation index of the chimeric gene was increased to 0.84. Validation results showed that 97.9% of residues lie in the favored or additional allowed region of the Ramachandran plot. A significant antibody rise was observed in all test groups. The immunized mice with chimer and InvH could tolerate 100 LD50 of Salmonella. In the sereny test, the application of bacteria treated with immunized mice sera of both antigens showed no infection in Guinea pigs' eyes. The recombinant protein could protect animal models against Salmonella and Shigella and therefore can be considered as a suitable vaccine candidate against these two pathogens.
Collapse
Affiliation(s)
| | - Atina Vakili
- Department of Biology, Faculty of Basic Science, Shahed University, Tehran, Iran.
| | - Shahram Nazarian
- Department of Biology, Faculty of Science, Imam Hussein University, Tehran, Iran.
| | - Jafar Amani
- Applied Microbiology Research center, System Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | | |
Collapse
|
41
|
Cui C, Wang S, Lu W, Wang Y, Li J, Qu K, Yang M, Wang L, Yu Y. The adjuvanticity of manganese for microbial vaccines via activating the IRF5 signaling pathway. Biochem Pharmacol 2021; 192:114720. [PMID: 34363796 DOI: 10.1016/j.bcp.2021.114720] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 07/26/2021] [Accepted: 08/02/2021] [Indexed: 11/18/2022]
Abstract
Manganese (Mn2+) has been reported to activate macrophages and NK cells, and to induce the production of type-I interferons (IFNs) by activating the cGAS-STING pathway. Few studies have been conducted on its adjuvanticity to microbial vaccines, and on the involvement of the interferon regulatory factor (IRF) 5 signaling pathway in the adjuvanticity. In this study, we demonstrated that Mn2+ could facilitate various microbial vaccines to induce enhanced antibody responses, and facilitate the influenza virus vaccine to induce protective immunity against the influenza virus challenge. When formulated in vaccines, Mn2+ could activate murine CD4+ T cells, CD8+ T cells, B cells and DCs, and induce the expression and phosphorylation of TANK-binding kinase 1 (TBK1) and IRF5 in the splenocytes of the immunized mice, resulting in the increased expression of type-I IFNs, TNF-α, B cell-activating factor of the TNF family (BAFF) and B lymphocyte-induced maturation protein-1 (Blimp-1). The induced TBK1 could recruit and bind the IRF5. Furthermore, the Mn2+ induced expression of IRF5 and Blimp-1 was prohibited by a IRF5 interfering oligonucleotide. The data suggest the Mn2+ could be used as a novel type of adjuvants for microbial vaccines, and the activation of IRF5 signaling pathway might involve in the adjuvanticity.
Collapse
Affiliation(s)
- Cuiyun Cui
- Department of Immunology, College of Basic Medical Sciences, Jilin University, Jilin, Changchun 130021, China
| | - Shengnan Wang
- Department of Molecular Biology, College of Basic Medical Sciences, Jilin University, Jilin, Changchun 130021, China
| | - Wenting Lu
- Department of Molecular Biology, College of Basic Medical Sciences, Jilin University, Jilin, Changchun 130021, China
| | - Yangyang Wang
- Department of Molecular Biology, College of Basic Medical Sciences, Jilin University, Jilin, Changchun 130021, China
| | - Jianhua Li
- Department of Molecular Biology, College of Basic Medical Sciences, Jilin University, Jilin, Changchun 130021, China
| | - Kuo Qu
- Department of Molecular Biology, College of Basic Medical Sciences, Jilin University, Jilin, Changchun 130021, China
| | - Ming Yang
- Department of Molecular Biology, College of Basic Medical Sciences, Jilin University, Jilin, Changchun 130021, China
| | - Liying Wang
- Department of Molecular Biology, College of Basic Medical Sciences, Jilin University, Jilin, Changchun 130021, China.
| | - Yongli Yu
- Department of Immunology, College of Basic Medical Sciences, Jilin University, Jilin, Changchun 130021, China.
| |
Collapse
|
42
|
Li W, Hu Y, Zhang Q, Hua L, Yang Z, Ren Z, Zheng X, Huang W, Ma Y. Development of Drug-Resistant Klebsiella pneumoniae Vaccine via Novel Vesicle Production Technology. ACS Appl Mater Interfaces 2021; 13:32703-32715. [PMID: 34251169 DOI: 10.1021/acsami.1c06701] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Drug resistance of Klebsiella pneumoniae severely threatens human health. Overcoming the mechanisms of K. pneumoniae resistance to develop novel vaccines against drug-resistant K. pneumoniae is highly desired. Here, we report a technology platform that uses high pressure to drive drug-resistant K. pneumoniae to pass through a gap, inducing the formation of stable artificial bacterial biomimetic vesicles (BBVs). These BBVs had little to no bacterial intracellular protein or nucleic acid and had high yields. BBVs were efficiently taken up by dendritic cells to stimulate their maturation. BBVs as K. pneumoniae vaccines had the dual functions of inducing bacteria-specific humoral and cellular immune responses to increase animals' survival rate and reduce pulmonary inflammation and bacterial loads. We believe that BBVs are new-generation technology for bacterial vesicle preparation. Establishment of this BBV vaccine platform can maximally expand preparation technology for vaccines against drug-resistant K. pneumoniae.
Collapse
Affiliation(s)
- Weiran Li
- Laboratory of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 935 Jiaoling Road, Kunming 650118, China
| | - Ying Hu
- The Second Affiliated Hospital of Kunming Medical University, No. 374 Dianmian Avenue, Kunming 650101, China
| | - Qishu Zhang
- Laboratory of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 935 Jiaoling Road, Kunming 650118, China
| | - Liangqun Hua
- Laboratory of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 935 Jiaoling Road, Kunming 650118, China
- Yunnan University, No. 2 Cuihu North Road, Kunming 650091, China
| | - Zhongqian Yang
- Laboratory of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 935 Jiaoling Road, Kunming 650118, China
| | - Zhaoling Ren
- The Second Affiliated Hospital of Kunming Medical University, No. 374 Dianmian Avenue, Kunming 650101, China
| | - Xiao Zheng
- Laboratory of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 935 Jiaoling Road, Kunming 650118, China
- Yunnan University, No. 2 Cuihu North Road, Kunming 650091, China
| | - Weiwei Huang
- Laboratory of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 935 Jiaoling Road, Kunming 650118, China
| | - Yanbing Ma
- Laboratory of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 935 Jiaoling Road, Kunming 650118, China
| |
Collapse
|
43
|
Mateos-Hernández L, Obregón D, Wu-Chuang A, Maye J, Bornères J, Versillé N, de la Fuente J, Díaz-Sánchez S, Bermúdez-Humarán LG, Torres-Maravilla E, Estrada-Peña A, Hodžić A, Šimo L, Cabezas-Cruz A. Anti-Microbiota Vaccines Modulate the Tick Microbiome in a Taxon-Specific Manner. Front Immunol 2021; 12:704621. [PMID: 34322135 PMCID: PMC8312226 DOI: 10.3389/fimmu.2021.704621] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [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: 05/03/2021] [Accepted: 06/28/2021] [Indexed: 01/04/2023] Open
Abstract
The lack of tools for the precise manipulation of the tick microbiome is currently a major limitation to achieve mechanistic insights into the tick microbiome. Anti-tick microbiota vaccines targeting keystone bacteria of the tick microbiota alter tick feeding, but their impact on the taxonomic and functional profiles of the tick microbiome has not been tested. In this study, we immunized a vertebrate host model (Mus musculus) with live bacteria vaccines targeting keystone (i.e., Escherichia-Shigella) or non-keystone (i.e., Leuconostoc) taxa of tick microbiota and tested the impact of bacterial-specific antibodies (Abs) on the structure and function of tick microbiota. We also investigated the effect of these anti-microbiota vaccines on mice gut microbiota composition. Our results showed that the tick microbiota of ticks fed on Escherichia coli-immunized mice had reduced Escherichia-Shigella abundance and lower species diversity compared to ticks fed on control mice immunized with a mock vaccine. Immunization against keystone bacteria restructured the hierarchy of nodes in co-occurrence networks and reduced the resistance of the bacterial network to taxa removal. High levels of E. coli-specific IgM and IgG were negatively correlated with the abundance of Escherichia-Shigella in tick microbiota. These effects were not observed when Leuconostoc was targeted with vaccination against Leuconostoc mesenteroides. Prediction of functional pathways in the tick microbiome using PICRUSt2 revealed that E. coli vaccination reduced the abundance of lysine degradation pathway in tick microbiome, a result validated by qPCR. In contrast, the gut microbiome of immunized mice showed no significant alterations in the diversity, composition and abundance of bacterial taxa. Our results demonstrated that anti-tick microbiota vaccines are a safe, specific and an easy-to-use tool for manipulation of vector microbiome. These results guide interventions for the control of tick infestations and pathogen infection/transmission.
Collapse
Affiliation(s)
- Lourdes Mateos-Hernández
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, F-94700, France
| | - Dasiel Obregón
- School of Environmental Sciences University of Guelph, Guelph, ON, Canada
| | - Alejandra Wu-Chuang
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, F-94700, France
| | - Jennifer Maye
- SEPPIC Paris La Défense, La Garenne Colombes, 92250, France
| | | | | | - José de la Fuente
- SaBio, Instituto de Investigación en Recursos Cinegéticos (IREC-CSIC-UCLM-JCCM), Ciudad Real, Spain
- Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK, United States
| | - Sandra Díaz-Sánchez
- SaBio, Instituto de Investigación en Recursos Cinegéticos (IREC-CSIC-UCLM-JCCM), Ciudad Real, Spain
| | | | - Edgar Torres-Maravilla
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, 78350, Jouy-en-Josas, France
| | | | - Adnan Hodžić
- Institute of Parasitology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Ladislav Šimo
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, F-94700, France
| | - Alejandro Cabezas-Cruz
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, F-94700, France
| |
Collapse
|
44
|
Hawley KL, Montezuma-Rusca JM, Delgado KN, Singh N, Uversky VN, Caimano MJ, Radolf JD, Luthra A. Structural Modeling of the Treponema pallidum Outer Membrane Protein Repertoire: a Road Map for Deconvolution of Syphilis Pathogenesis and Development of a Syphilis Vaccine. J Bacteriol 2021; 203:e0008221. [PMID: 33972353 PMCID: PMC8407342 DOI: 10.1128/jb.00082-21] [Citation(s) in RCA: 11] [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: 02/11/2021] [Accepted: 04/27/2021] [Indexed: 01/11/2023] Open
Abstract
Treponema pallidum, an obligate human pathogen, has an outer membrane (OM) whose physical properties, ultrastructure, and composition differ markedly from those of phylogenetically distant Gram-negative bacteria. We developed structural models for the outer membrane protein (OMP) repertoire (OMPeome) of T. pallidum Nichols using solved Gram-negative structures, computational tools, and small-angle X-ray scattering (SAXS) of selected recombinant periplasmic domains. The T. pallidum "OMPeome" harbors two "stand-alone" proteins (BamA and LptD) involved in OM biogenesis and four paralogous families involved in the influx/efflux of small molecules: 8-stranded β-barrels, long-chain-fatty-acid transporters (FadLs), OM factors (OMFs) for efflux pumps, and T. pallidum repeat proteins (Tprs). BamA (TP0326), the central component of a β-barrel assembly machine (BAM)/translocation and assembly module (TAM) hybrid, possesses a highly flexible polypeptide-transport-associated (POTRA) 1-5 arm predicted to interact with TamB (TP0325). TP0515, an LptD ortholog, contains a novel, unstructured C-terminal domain that models inside the β-barrel. T. pallidum has four 8-stranded β-barrels, each containing positively charged extracellular loops that could contribute to pathogenesis. Three of five FadL-like orthologs have a novel α-helical, presumptively periplasmic C-terminal extension. SAXS and structural modeling further supported the bipartite membrane topology and tridomain architecture of full-length members of the Tpr family. T. pallidum's two efflux pumps presumably extrude noxious small molecules via four coexpressed OMFs with variably charged tunnels. For BamA, LptD, and OMFs, we modeled the molecular machines that deliver their substrates into the OM or external milieu. The spirochete's extended families of OM transporters collectively confer a broad capacity for nutrient uptake. The models also furnish a structural road map for vaccine development. IMPORTANCE The unusual outer membrane (OM) of T. pallidum, the syphilis spirochete, is the ultrastructural basis for its well-recognized capacity for invasiveness, immune evasion, and persistence. In recent years, we have made considerable progress in identifying T. pallidum's repertoire of OMPs. Here, we developed three-dimensional (3D) models for the T. pallidum Nichols OMPeome using structural modeling, bioinformatics, and solution scattering. The OM contains three families of OMP transporters, an OMP family involved in the extrusion of noxious molecules, and two "stand-alone" proteins involved in OM biogenesis. This work represents a major advance toward elucidating host-pathogen interactions during syphilis; understanding how T. pallidum, an extreme auxotroph, obtains a wide array of biomolecules from its obligate human host; and developing a vaccine with global efficacy.
Collapse
Affiliation(s)
- Kelly L. Hawley
- Department of Pediatrics, UConn Health, Farmington, Connecticut, USA
- Division of Infectious Diseases and Immunology, Connecticut Children’s, Hartford, Connecticut, USA
| | - Jairo M. Montezuma-Rusca
- Department of Pediatrics, UConn Health, Farmington, Connecticut, USA
- Department of Medicine, UConn Health, Farmington, Connecticut, USA
- Division of Infectious Diseases, UConn Health, Farmington, Connecticut, USA
| | | | - Navreeta Singh
- Department of Medicine, UConn Health, Farmington, Connecticut, USA
| | - Vladimir N. Uversky
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida, USA
| | - Melissa J. Caimano
- Department of Pediatrics, UConn Health, Farmington, Connecticut, USA
- Department of Medicine, UConn Health, Farmington, Connecticut, USA
- Department of Molecular Biology and Biophysics, UConn Health, Farmington, Connecticut, USA
| | - Justin D. Radolf
- Department of Pediatrics, UConn Health, Farmington, Connecticut, USA
- Department of Medicine, UConn Health, Farmington, Connecticut, USA
- Department of Molecular Biology and Biophysics, UConn Health, Farmington, Connecticut, USA
- Department of Genetics and Genome Sciences, UConn Health, Farmington, Connecticut, USA
- Department of Immunology, UConn Health, Farmington, Connecticut, USA
| | - Amit Luthra
- Department of Medicine, UConn Health, Farmington, Connecticut, USA
- Department of Molecular Biology and Biophysics, UConn Health, Farmington, Connecticut, USA
| |
Collapse
|
45
|
Camire AC, Hatke AL, King VL, Millership J, Ritter DM, Sobell N, Weber A, Marconi RT. Comparative analysis of antibody responses to outer surface protein (Osp)A and OspC in dogs vaccinated with Lyme disease vaccines. Vet J 2021; 273:105676. [PMID: 34148599 PMCID: PMC8254658 DOI: 10.1016/j.tvjl.2021.105676] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 12/26/2020] [Revised: 03/25/2021] [Accepted: 04/09/2021] [Indexed: 11/25/2022]
Abstract
Lyme disease (LD), the most common tick-borne disease of canines and humans in N. America, is caused by the spirochete Borreliella burgdorferi. Subunit and bacterin vaccines are available for the prevention of LD in dogs. LD bacterin vaccines, which are comprised of cell lysates of two strains of B. burgdorferi, contain over 1000 different proteins and cellular constituents. In contrast, subunit vaccines are defined in composition and consist of either outer surface protein (Osp)A or OspA and an OspC chimeritope. In this study, we comparatively assessed antibody responses to OspA and OspC induced by vaccination with all canine bacterin and subunit LD vaccines that are commercially available in North America. Dogs were administered a two-dose series of the vaccine to which they were assigned (3 weeks apart): Subunit-AC, Subunit-A, Bacterin-1, and Bacterin-2. Antibody titers to OspA and OspC were determined by ELISA and the ability of each vaccine to elicit antibodies that recognize diverse OspC proteins (referred to as OspC types) assessed by immunoblot. While all of the vaccines elicited similar OspA antibody responses, only Subunit-AC triggered a robust and broadly cross-reactive antibody response to divergent OspC proteins. The data presented within provide new information regarding vaccination-induced antibody responses to key tick and mammalian phase antigens by both subunit and bacterin LD canine vaccine formulations.
Collapse
Affiliation(s)
- A C Camire
- Department of Microbiology and Immunology, Virginia Commonwealth University Medical Center, 1112 East Clay Street, McGuire Hall Room 101, Richmond, VA 23298-0678, USA
| | - A L Hatke
- Department of Microbiology and Immunology, Virginia Commonwealth University Medical Center, 1112 East Clay Street, McGuire Hall Room 101, Richmond, VA 23298-0678, USA
| | - V L King
- Zoetis Inc., 333 Portage Road, Kalamazoo, MI 49007-4931, USA
| | - J Millership
- Zoetis Inc., 333 Portage Road, Kalamazoo, MI 49007-4931, USA
| | - D M Ritter
- Zoetis Inc., 333 Portage Road, Kalamazoo, MI 49007-4931, USA
| | - N Sobell
- Zoetis Inc., 333 Portage Road, Kalamazoo, MI 49007-4931, USA
| | - A Weber
- Zoetis Inc., 333 Portage Road, Kalamazoo, MI 49007-4931, USA
| | - R T Marconi
- Department of Microbiology and Immunology, Virginia Commonwealth University Medical Center, 1112 East Clay Street, McGuire Hall Room 101, Richmond, VA 23298-0678, USA.
| |
Collapse
|
46
|
Lee SH, Beck BR, Hwang SH, Song SK. Feeding olive flounder (Paralichthys olivaceus) with Lactococcus lactis BFE920 expressing the fusion antigen of Vibrio OmpK and FlaB provides protection against multiple Vibrio pathogens: A universal vaccine effect. Fish Shellfish Immunol 2021; 114:253-262. [PMID: 33979691 DOI: 10.1016/j.fsi.2021.05.007] [Citation(s) in RCA: 6] [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: 12/04/2020] [Revised: 05/03/2021] [Accepted: 05/05/2021] [Indexed: 06/12/2023]
Abstract
Vibriosis, an illness caused by the Vibrio bacteria species, results in significant economic loss in olive flounder farms. Here we present a novel anti-Vibrio feed vaccine protecting multiple strains of Vibrio pathogens, a universal vaccine effect. The vaccine was generated by engineering Lactococcus lactis BFE920 to express the fusion antigens of Vibrio outer membrane protein K (OmpK) and flagellin B subunit (FlaB). These antigen genes are highly conserved among Vibrio species. Olive flounder (7.1 ± 0.8 g and 140 ± 10 g) were fed the vaccine adsorbed to a regular feed (1 × 107 CFU/g) for one week with a 1-week interval, repeating three times (a triple boost). The vaccinated fish increased the significant levels of antigen-specific antibodies, T cell numbers (CD4-1, CD4-2, and CD8α), cytokine production (T-bet and IFN-γ), and innate immune responses (TLR5M, IL-1β, and IL-12p40). Also, the survival rates of adult and juvenile fish fed the vaccine were significantly elevated when challenged with V. anguillarum, V. alginolyticus, and V. harveyi. In addition, weight gain rate and feed conversion ratio were improved in vaccinated fish. The feed vaccine protected multiple Vibrio pathogens, a universal vaccine effect, by activating innate and adaptive immune responses. This oral vaccine may be developed as an anti-Vibrio vaccine to protect against a broad spectrum of Vibrio pathogens.
Collapse
Affiliation(s)
- Soon Ho Lee
- School of Life Science, Handong University, 558 Handong-ro, Pohang-city, Gyeongbuk, 37554, South Korea
| | - Bo Ram Beck
- School of Life Science, Handong University, 558 Handong-ro, Pohang-city, Gyeongbuk, 37554, South Korea
| | - Seok-Hong Hwang
- School of Life Science, Handong University, 558 Handong-ro, Pohang-city, Gyeongbuk, 37554, South Korea
| | - Seong Kyu Song
- School of Life Science, Handong University, 558 Handong-ro, Pohang-city, Gyeongbuk, 37554, South Korea.
| |
Collapse
|
47
|
Veenstra KA, Wang T, Russell KS, Tubbs L, Ben Arous J, Secombes CJ. Montanide™ ISA 763A VG and ISA 761 VG induce different immune pathway responses in rainbow trout (Oncorhynchus mykiss) when used as adjuvant for an Aeromonas salmonicida bacterin. Fish Shellfish Immunol 2021; 114:171-183. [PMID: 33940174 DOI: 10.1016/j.fsi.2021.04.024] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/23/2021] [Accepted: 04/25/2021] [Indexed: 06/12/2023]
Abstract
Adjuvants are the helper substances that increase vaccine efficacy by enhancing the potency and longevity of specific immune responses to antigens. Most existing fish vaccines are presented in the form of oil-based emulsions delivered by intraperitoneal injection. The characterization of their mode of action is a valuable aid to future vaccine development, particularly for the potential identification and stimulation of specific immunological pathways related to the desired protective response. This study characterized the expression of selected immune-related genes in the peritoneal cavity, head kidney and spleen following the administration of two adjuvanted-bacterial vaccines thought to induce humoral (Montanide™ ISA 763A VG) or humoral and cell mediated (Montanide™ ISA 761 VG) immune responses, to determine if differences in responsiveness are readily apparent. The most informative site was the spleen, where Montanide™ ISA 763A VG + bacterin gave rise to upregulation of genes driving T-cell/lymphoid responses, namely IL-2, IL-15 and IL-21. This combined with upregulation of IFNγ1 and IFNγ2, IL-4/13B2, p35A1 and p40 (B1 and C) indicated that the induction of Th1 and possibly Th2 immunity was occurring in fish vaccinated with this adjuvant. Perhaps the most intriguing finding was the lack of a detectable Th1 response in fish given Montanide™ ISA 761 VG + bacterin, suggesting some other arm of the immune system is activated to give protection. Whatever the reason for the different responses detected, it is clear from the present study that the adjuvant used has a major impact on the responses elicited. Since these differences are readily detectable it allows, in principle, their use to help select the most appropriate adjuvants for inclusion into fish vaccines, where the type of response elicited may need to be tailored to a particular pathogen to confer protection.
Collapse
Affiliation(s)
- Kimberly A Veenstra
- Scottish Fish Immunology Research Centre, School of Biological Sciences, University of Aberdeen, Tillydrone Avenue, Aberdeen, AB24 2TZ, UK.
| | - Tiehui Wang
- Scottish Fish Immunology Research Centre, School of Biological Sciences, University of Aberdeen, Tillydrone Avenue, Aberdeen, AB24 2TZ, UK.
| | - K Spencer Russell
- Elanco Canada Ltd, Aquaculture Research and Development, P.O. Box 17, Victoria PE, C0A 2G0, Canada.
| | - Lincoln Tubbs
- Elanco Canada Ltd, Aquaculture Research and Development, P.O. Box 17, Victoria PE, C0A 2G0, Canada.
| | - Juliette Ben Arous
- Seppic, Paris La Défense, 50 Boulevard National, 92257, La Garenne Colombes, France.
| | - Christopher J Secombes
- Scottish Fish Immunology Research Centre, School of Biological Sciences, University of Aberdeen, Tillydrone Avenue, Aberdeen, AB24 2TZ, UK.
| |
Collapse
|
48
|
Habibi M, Azimi S, Khoobbakht D, Roghanian P, Asadi Karam MR. Immunization with recombinant protein Ag43::UpaH with alum and 1,25(OH)2D3 adjuvants significantly protects Balb/C mice against urinary tract infection caused by uropathogenic Escherichia coli. Int Immunopharmacol 2021; 96:107638. [PMID: 33848909 DOI: 10.1016/j.intimp.2021.107638] [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: 01/11/2021] [Revised: 03/31/2021] [Accepted: 03/31/2021] [Indexed: 11/29/2022]
Abstract
The majority of urinary tract infections (UTIs) are caused by uropathogenic Escherichia coli (UPEC). Designing a vaccine will certainly reduce the occurrence of infection and antibiotic resistance of the isolates. Antigen 43 (Ag43) and autotransporter H (UpaH) have been associated with the virulence of UPEC. In the present study, the efficacy of different formulations of a hybrid protein composed of Ag43 and UpaH with and without alum and 1,25(OH)2D3 (Vitamin D3) adjuvants were evaluated in mice model. A significant increase in IgG and cellular responses was developed against Ag43::UpaH as compared to the control mice. The addition of alum or a mixture of alum and Vitamin D3 to the protein significantly enhanced the serum IgG responses and tended to remain in a steady state until 6 months. In addition, the mentioned formulations produced significant amounts of IgG1, IL-4, and IL-17 as compared to the fusion protein alone. In addition to the mentioned formulations, the combination of protein with Vitamin D3 also resulted in significantly higher serum IgA and IFN-γ levels as compared to the fusion protein alone. Mice immunized with fusion plus alum and formulation protein admixed with both alum and Vitamin D3 significantly reduced the bacterial load in the bladders and kidneys of mice as compared to the control. In this study, for the first time, the ability of a novel hybrid protein in combination with adjuvants alum and Vitamin D3 was evaluated against UPEC. Our results indicated that fusion Ag43::UpaH admixed with alum and Vitamin D3 could be a promising candidate against UTIs.
Collapse
Affiliation(s)
- Mehri Habibi
- Department of Molecular Biology, Pasteur Institute of Iran, Pasteur Ave, Tehran 13164, Iran
| | - Saba Azimi
- Department of Molecular Biology, Pasteur Institute of Iran, Pasteur Ave, Tehran 13164, Iran
| | - Dorna Khoobbakht
- Department of Molecular Biology, Pasteur Institute of Iran, Pasteur Ave, Tehran 13164, Iran
| | - Pooneh Roghanian
- Department of Molecular Biology, Pasteur Institute of Iran, Pasteur Ave, Tehran 13164, Iran
| | | |
Collapse
|
49
|
Abstract
Glycoconjugate vaccines, obtained by carbohydrates covalently bound to protein carriers, have contributed to fight diseases such as meningitidis, pneumonia and typhoid fever. Despite new technologies such as RNA and adenovirus based vaccine have now reached the market, these approaches are unable to target carbohydrates which are key virulence factors. This issue intends to provide an overview on relevant directions where the field is evolving and serve as starting point to increase interest in this exciting and fundamental part of vaccinology.
Collapse
|
50
|
Richardson S, Medhavi F, Tanner T, Lundy S, Omosun Y, Igietseme JU, Carroll D, Eko FO. Cellular Basis for the Enhanced Efficacy of the Fms-Like Tyrosine Kinase 3 Ligand (FL) Adjuvanted VCG-Based Chlamydia abortus Vaccine. Front Immunol 2021; 12:698737. [PMID: 34249004 PMCID: PMC8264281 DOI: 10.3389/fimmu.2021.698737] [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: 04/22/2021] [Accepted: 06/11/2021] [Indexed: 12/02/2022] Open
Abstract
Efficacious vaccines are needed to control genital chlamydial diseases in humans and the veterinary industry. We previously reported a C. abortus (Cab) vaccine comprising recombinant Vibrio cholerae ghosts (rVCG) expressing the conserved and immunogenic N-terminal region of the Cab polymorphic membrane protein D (rVCG-Pmp18.1) protein that protected mice against intravaginal challenge. In this study, we investigated the immunomodulatory effect of the hematopoietic progenitor activator cytokine, Fms-like tyrosine kinase 3-ligand (FL) when co-administered with the rVCG-Pmp18.1 vaccine as a strategy to enhance the protective efficacy and the potential mechanism of immunomodulation. Groups of female C57BL/6J mice were immunized and boosted twice intranasally (IN) with rVCG-PmpD18.1 with and without FL or purified rPmp18.1 or rVCG-gD2 (antigen control) or PBS (medium) per mouse. The results revealed that co-administration of the vaccine with FL enhanced antigen-specific cellular and humoral immune responses and protected against live Cab genital infection. Comparative analysis of immune cell phenotypes infiltrating mucosal and systemic immune inductive tissue sites following immunization revealed that co-administration of rVCG-Pmp18.1 with FL significantly enhanced the number of macrophages, dendritic and NK cells, γδ and NK T cells in the spleen (systemic) and iliac lymph nodes (ILN) draining the genital tract (mucosal) tissues compared to rVCG-Pmp18.1 alone. Furthermore, FL enhanced monocyte infiltration in the ILN, while CD19+ B cells and CD4+ T cells were enhanced in the spleen. These results indicate that the immunomodulatory effect of FL is associated with its ability to mobilize innate immune cells and subsequent activation of robust antigen-specific immune effectors in mucosal and systemic lymphoid tissues.
Collapse
Affiliation(s)
- Shakyra Richardson
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA, United States
| | - Fnu Medhavi
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA, United States
| | - Tayhlor Tanner
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA, United States
| | - Stephanie Lundy
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA, United States
| | - Yusuf Omosun
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA, United States
| | - Joseph U. Igietseme
- National Center for Emerging Zoonotic and Infectious Diseases, Centers for Disease Control and Prevention (CDC), Atlanta, GA, United States
| | - Darin Carroll
- National Center for Emerging Zoonotic and Infectious Diseases, Centers for Disease Control and Prevention (CDC), Atlanta, GA, United States
| | - Francis O. Eko
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA, United States
| |
Collapse
|