1
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Mach N. The forecasting power of the mucin-microbiome interplay in livestock respiratory diseases. Vet Q 2024; 44:1-18. [PMID: 38606662 PMCID: PMC11018052 DOI: 10.1080/01652176.2024.2340003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 03/31/2024] [Indexed: 04/13/2024] Open
Abstract
Complex respiratory diseases are a significant challenge for the livestock industry worldwide. These diseases considerably impact animal health and welfare and cause severe economic losses. One of the first lines of pathogen defense combines the respiratory tract mucus, a highly viscous material primarily composed of mucins, and a thriving multi-kingdom microbial ecosystem. The microbiome-mucin interplay protects from unwanted substances and organisms, but its dysfunction may enable pathogenic infections and the onset of respiratory disease. Emerging evidence also shows that noncoding regulatory RNAs might modulate the structure and function of the microbiome-mucin relationship. This opinion paper unearths the current understanding of the triangular relationship between mucins, the microbiome, and noncoding RNAs in the context of respiratory infections in animals of veterinary interest. There is a need to look at these molecular underpinnings that dictate distinct health and disease outcomes to implement effective prevention, surveillance, and timely intervention strategies tailored to the different epidemiological contexts.
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Affiliation(s)
- Núria Mach
- IHAP, Université de Toulouse, INRAE, ENVT, Toulouse, France
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2
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Rossouw C, Ryan FJ, Lynn DJ. The role of the gut microbiota in regulating responses to vaccination: current knowledge and future directions. FEBS J 2024. [PMID: 39102299 DOI: 10.1111/febs.17241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 06/13/2024] [Accepted: 07/24/2024] [Indexed: 08/07/2024]
Abstract
Antigen-specific B and T cell responses play a critical role in vaccine-mediated protection against infectious diseases, but these responses are highly variable between individuals and vaccine immunogenicity is frequently sub-optimal in infants, the elderly and in people living in low- and middle-income countries. Although many factors such as nutrition, age, sex, genetics, environmental exposures, and infections may all contribute to variable vaccine immunogenicity, mounting evidence indicates that the gut microbiota is an important and targetable factor shaping optimal immune responses to vaccination. In this review, we discuss evidence from human, preclinical and experimental studies supporting a role for a healthy gut microbiota in mediating optimal vaccine immunogenicity, including the immunogenicity of COVID-19 vaccines. Furthermore, we provide an overview of the potential mechanisms through which this could occur and discuss strategies that could be used to target the microbiota to boost vaccine immunogenicity where it is currently sub-optimal.
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Affiliation(s)
- Charné Rossouw
- Precision Medicine, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, Australia
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, Australia
| | - Feargal J Ryan
- Precision Medicine, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, Australia
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, Australia
| | - David J Lynn
- Precision Medicine, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, Australia
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, Australia
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3
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Liu Y, Zhou J, Yang Y, Chen X, Chen L, Wu Y. Intestinal Microbiota and Its Effect on Vaccine-Induced Immune Amplification and Tolerance. Vaccines (Basel) 2024; 12:868. [PMID: 39203994 PMCID: PMC11359036 DOI: 10.3390/vaccines12080868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Revised: 07/22/2024] [Accepted: 07/24/2024] [Indexed: 09/03/2024] Open
Abstract
This review provides the potential of intestinal microbiota in vaccine design and application, exploring the current insights into the interplay between the intestinal microbiota and the immune system, with a focus on its intermediary function in vaccine efficacy. It summarizes families and genera of bacteria that are part of the intestinal microbiota that may enhance or diminish vaccine efficacy and discusses the foundational principles of vaccine sequence design and the application of gut microbial characteristics in vaccine development. Future research should further investigate the use of multi-omics technologies to elucidate the interactive mechanisms between intestinal microbiota and vaccine-induced immune responses, aiming to optimize and improve vaccine design.
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Affiliation(s)
- Yixin Liu
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China;
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China; (J.Z.); (L.C.)
| | - Jianfeng Zhou
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China; (J.Z.); (L.C.)
| | - Yushang Yang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China; (J.Z.); (L.C.)
| | - Xiangzheng Chen
- Department of Liver Surgery & Liver Transplantation, West China Hospital, Sichuan University, Chengdu 610041, China;
| | - Longqi Chen
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China; (J.Z.); (L.C.)
| | - Yangping Wu
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China;
- State Key Laboratory of Respiratory Health and Multimorbidity, West China Hospital, Chengdu 610041, China
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4
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Oladokun S, Sharif S. Exploring the complexities of poultry respiratory microbiota: colonization, composition, and impact on health. Anim Microbiome 2024; 6:25. [PMID: 38711114 DOI: 10.1186/s42523-024-00308-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 04/08/2024] [Indexed: 05/08/2024] Open
Abstract
An accurate understanding of the ecology and complexity of the poultry respiratory microbiota is of utmost importance for elucidating the roles of commensal or pathogenic microorganisms in the respiratory tract, as well as their associations with health or disease outcomes in poultry. This comprehensive review delves into the intricate aspects of the poultry respiratory microbiota, focusing on its colonization patterns, composition, and impact on poultry health. Firstly, an updated overview of the current knowledge concerning the composition of the microbiota in the respiratory tract of poultry is provided, as well as the factors that influence the dynamics of community structure and diversity. Additionally, the significant role that the poultry respiratory microbiota plays in economically relevant respiratory pathobiologies that affect poultry is explored. In addition, the challenges encountered when studying the poultry respiratory microbiota are addressed, including the dynamic nature of microbial communities, site-specific variations, the need for standardized protocols, the appropriate sequencing technologies, and the limitations associated with sampling methodology. Furthermore, emerging evidence that suggests bidirectional communication between the gut and respiratory microbiota in poultry is described, where disturbances in one microbiota can impact the other. Understanding this intricate cross talk holds the potential to provide valuable insights for enhancing poultry health and disease control. It becomes evident that gaining a comprehensive understanding of the multifaceted roles of the poultry respiratory microbiota, as presented in this review, is crucial for optimizing poultry health management and improving overall outcomes in poultry production.
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Affiliation(s)
- Samson Oladokun
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Shayan Sharif
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada.
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5
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Heston SM, Hurst JH, Kelly MS. Understanding the influence of the microbiome on childhood infections. Expert Rev Anti Infect Ther 2024:1-17. [PMID: 38605646 DOI: 10.1080/14787210.2024.2340664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 04/04/2024] [Indexed: 04/13/2024]
Abstract
INTRODUCTION The microbiome is known to have a substantial impact on human health and disease. However, the impacts of the microbiome on immune system development, susceptibility to infectious diseases, and vaccine-elicited immune responses are emerging areas of interest. AREAS COVERED In this review, we provide an overview of development of the microbiome during childhood. We highlight available data suggesting that the microbiome is critical to maturation of the immune system and modifies susceptibility to a variety of infections during childhood and adolescence, including respiratory tract infections, Clostridioides difficile infection, and sexually transmitted infections. We discuss currently available and investigational therapeutics that have the potential to modify the microbiome to prevent or treat infections among children. Finally, we review the accumulating evidence that the gut microbiome influences vaccine-elicited immune responses among children. EXPERT OPINION Recent advances in sequencing technologies have led to an explosion of studies associating the human microbiome with the risk and severity of infectious diseases. As our knowledge of the extent to which the microbiome influences childhood infections continues to grow, microbiome-based diagnostics and therapeutics will increasingly be incorporated into clinical practice to improve the prevention, diagnosis, and treatment of infectious diseases among children.
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Affiliation(s)
- Sarah M Heston
- Pediatrics, Duke University School of Medicine, Durham, NC, UK
| | - Jillian H Hurst
- Pediatrics, Duke University School of Medicine, Durham, NC, UK
| | - Matthew S Kelly
- Pediatrics, Duke University School of Medicine, Durham, NC, UK
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Raj S, Alizadeh M, Matsuyama-Kato A, Boodhoo N, Denis MS, Nagy É, Mubareka S, Karimi K, Behboudi S, Sharif S. Efficacy of an inactivated influenza vaccine adjuvanted with Toll-like receptor ligands against transmission of H9N2 avian influenza virus in chickens. Vet Immunol Immunopathol 2024; 268:110715. [PMID: 38219434 DOI: 10.1016/j.vetimm.2024.110715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 12/27/2023] [Accepted: 01/02/2024] [Indexed: 01/16/2024]
Abstract
Avian influenza viruses (AIV), including the H9N2 subtype, pose a major threat to the poultry industry as well as to human health. Although vaccination provides a protective control measure, its effect on transmission remains uncertain in chickens. The objective of the present study was to investigate the efficacy of beta-propiolactone (BPL) whole inactivated H9N2 virus (WIV) vaccine either alone or in combination with CpG ODN 2007 (CpG), poly(I:C) or AddaVax™ (ADD) to prevent H9N2 AIV transmission in chickens. The seeder chickens (trial 1) and recipient chickens (trial 2) were vaccinated twice with different vaccine formulations. Ten days after secondary vaccination, seeder chickens were infected with H9N2 AIV (trial 1) and co-housed with healthy recipient chickens. In trial 2, the recipient chickens were vaccinated and then exposed to H9N2 AIV-infected seeder chickens. Our results demonstrated that BPL+ CpG and BPL+ poly(I:C) treated chickens exhibited reduced oral and cloacal shedding in both trials post-exposure (PE). The number of H9N2 AIV+ recipient chickens in the BPL+ CpG group (trial 1) was lower than in other vaccinated groups, and the reduction was higher in BPL+ CpG recipient chickens in trial 2. BPL+ CpG vaccinated chickens demonstrated enhanced systemic antibody responses with high IgM and IgY titers with higher rates of seroprotection by day 21 post-primary vaccination (ppv). Additionally, the induction of IFN-γ expression and production was higher in the BPL+ CpG treated chickens. Interleukin (IL)- 2 expression was upregulated in both BPL+ CpG and BPL+ poly(I:C) groups at 12 and 24 hr post-stimulation.
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Affiliation(s)
- Sugandha Raj
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Mohammadali Alizadeh
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Ayumi Matsuyama-Kato
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Nitish Boodhoo
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Myles St Denis
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Éva Nagy
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Samira Mubareka
- Sunnybrook Research Institute, Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M4N 3M5, Canada
| | - Khalil Karimi
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Shahriar Behboudi
- The Pirbright Institute, Pirbright, Woking, Surrey GU24 0NE, United Kingdom
| | - Shayan Sharif
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
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7
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Ou G, Xu H, Wu J, Wang S, Chen Y, Deng L, Chen X. The gut-lung axis in influenza A: the role of gut microbiota in immune balance. Front Immunol 2023; 14:1147724. [PMID: 37928517 PMCID: PMC10623161 DOI: 10.3389/fimmu.2023.1147724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 10/11/2023] [Indexed: 11/07/2023] Open
Abstract
Influenza A, the most common subtype, induces 3 to 5 million severe infections and 250,000 to 500,000 deaths each year. Vaccination is traditionally considered to be the best way to prevent influenza A. Yet because the Influenza A virus (IAV) is highly susceptible to antigenic drift and Antigenic shift, and because of the lag in vaccine production, this poses a significant challenge to vaccine effectiveness. Additionally, much information about the resistance of antiviral drugs, such as Oseltamivir and Baloxavir, has been reported. Therefore, the search for alternative therapies in the treatment of influenza is warranted. Recent studies have found that regulating the gut microbiota (GM) can promote the immune effects of anti-IAV via the gut-lung axis. This includes promoting IAV clearance in the early stages of infection and reducing inflammatory damage in the later stages. In this review, we first review the specific alterations in GM observed in human as well as animal models regarding IAV infection. Then we analyzed the effect of GM on host immunity against IAV, including innate immunity and subsequent adaptive immunity. Finally, our study also summarizes the effects of therapies using probiotics, prebiotics, or herbal medicine in influenza A on intestinal microecological composition and their immunomodulatory effects against IAV.
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Affiliation(s)
| | - Huachong Xu
- *Correspondence: Huachong Xu, ; Li Deng, ; Xiaoyin Chen,
| | | | | | | | - Li Deng
- School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Xiaoyin Chen
- School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
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8
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Adams JRG, Mehat J, La Ragione R, Behboudi S. Preventing bacterial disease in poultry in the post-antibiotic era: a case for innate immunity modulation as an alternative to antibiotic use. Front Immunol 2023; 14:1205869. [PMID: 37469519 PMCID: PMC10352996 DOI: 10.3389/fimmu.2023.1205869] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 06/12/2023] [Indexed: 07/21/2023] Open
Abstract
The widespread use of antibiotics in the poultry industry has led to the emergence of antibiotic-resistant bacteria, which pose a significant health risk to humans and animals. These public health concerns, which have led to legislation limiting antibiotic use in animals, drive the need to find alternative strategies for controlling and treating bacterial infections. Modulation of the avian innate immune system using immunostimulatory compounds provides a promising solution to enhance poultry immune responses to a broad range of bacterial infections without the risk of generating antibiotic resistance. An array of immunomodulatory compounds have been investigated for their impact on poultry performance and immune responses. However, further research is required to identify compounds capable of controlling bacterial infections without detrimentally affecting bird performance. It is also crucial to determine the safety and effectiveness of these compounds in conjunction with poultry vaccines. This review provides an overview of the various immune modulators known to enhance innate immunity against avian bacterial pathogens in chickens, and describes the mechanisms involved.
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Affiliation(s)
- James R. G. Adams
- School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
- Avian Immunology, The Pirbright Institute, Woking, United Kingdom
| | - Jai Mehat
- School of Biosciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
| | - Roberto La Ragione
- School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
- School of Biosciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom
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9
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Huang B, Wang J, Li L. Recent five-year progress in the impact of gut microbiota on vaccination and possible mechanisms. Gut Pathog 2023; 15:27. [PMID: 37308966 DOI: 10.1186/s13099-023-00547-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 04/17/2023] [Indexed: 06/14/2023] Open
Abstract
Vaccine is the most effective way to prevent the spread of communicable diseases, but the immune response induced by it varies greatly between individuals and populations in different regions of the world. Current studies have identified the composition and function of the gut microbiota as key factors in modulating the immune response to vaccination. This article mainly reviews the differences in gut microbiota among different groups of vaccinated people and animals, explores the possible mechanism of vaccine immunity affected by gut microbiota, and reviews the strategies for targeting gut microbiota to improve vaccine efficacy.
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Affiliation(s)
- Biqing Huang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University school of medicine, Hangzhou, China
- Research Units of Infectious disease and Microecology, Chinese Academy of Medical Sciences & Peking Union Medical College, Hangzhou, China
- NHC Key Laboratory of Systems Biology of Pathogens and Christophe Mérieux Laboratory, Institute of Pathogen Biology, Key Laboratory of Respiratory Disease Pathogenomics, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jianwei Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University school of medicine, Hangzhou, China.
- NHC Key Laboratory of Systems Biology of Pathogens and Christophe Mérieux Laboratory, Institute of Pathogen Biology, Key Laboratory of Respiratory Disease Pathogenomics, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University school of medicine, Hangzhou, China.
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10
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Jiang X, Zhang X, Sun Y, Sun Z, Li X, Liu L. Effects of Salmonella Enteritidis infection on TLRs gene expression and microbial diversity in cecum of laying hens. Heliyon 2023; 9:e16414. [PMID: 37265619 PMCID: PMC10230204 DOI: 10.1016/j.heliyon.2023.e16414] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 05/11/2023] [Accepted: 05/16/2023] [Indexed: 06/03/2023] Open
Abstract
Salmonella Enteritidis (SE) is an important foodborne pathogen primarily causing human disease through contaminated food and water. In the current study, to assess the effect of Salmonella Enteritidis infection on the immune system and the microbial diversity of cecum and oviduct in chickens, twelve 24-week-old SE-negative White Leghorn layers were randomly selected and divided into 2 groups. Chickens in the challenge group were orally inoculated with SE, and chickens in the control group received an equal amount of sterilized Phosphate Buffered Saline solution. Serum and tissue samples (cecum, oviduct, ovary, liver, spleen, and pancreas) were collected at 7 days and 14 days post-infection (dpi). Quantitative PCR was used to detect the expression of Toll-like receptors (TLRs) in the cecum, oviduct and ovary. To understand the influence of SE infection on the microbial profile of the cecum and oviduct, microbial community composition of the cecal contents and oviducal contents were analyzed through 16S rRNA sequencing. Results showed that SE infection caused damage to the digestive organs, reproductive organs, and immune organs in laying hens. The expression of TLR1a, TLR1b, TLR2, TLR4, TLR5, TLR7 and TLR15 in the cecum were induced, and the content of IFN-γ, TNF-α, IL-2 and IL-18 in serum increased after SE infection. The composition of the microbial community significantly changed in cecal content, the dominant phylum of Firmicutes increased, and Bacteroidetes decreased significantly. In the oviduct, the microbial diversity became complicated, the dominant bacteria Faecalibacterium was significantly increased, and Bacteroides was significantly decreased. This study investigated the effects of SE infection in laying hens, including host innate immunity, the expression of TLRs, and changes in the composition of microbes in the cecum and reproductive tract. Our results may provide a scientific basis for the Salmonella Enteritidis control in chicken, the maintenance of oviduct function, and the guarantee of clean egg production.
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Affiliation(s)
- Xintong Jiang
- College of Life Science, Shandong Agricultural University, Tai'an, Shandong, China
| | - Xiao Zhang
- College of Life Science, Shandong Agricultural University, Tai'an, Shandong, China
| | - Yuqing Sun
- College of Life Science, Shandong Agricultural University, Tai'an, Shandong, China
| | - Zhongtao Sun
- College of Life Science, Shandong Agricultural University, Tai'an, Shandong, China
| | - Xianyao Li
- College of Animal Science and Technology, Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Shandong Agricultural University, Tai'an, 271000, Shandong, China
| | - Liying Liu
- College of Life Science, Shandong Agricultural University, Tai'an, Shandong, China
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11
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Raj S, Matsuyama-Kato A, Alizadeh M, Boodhoo N, Nagy E, Mubareka S, Karimi K, Behboudi S, Sharif S. Treatment with Toll-like Receptor (TLR) Ligands 3 and 21 Prevents Fecal Contact Transmission of Low Pathogenic H9N2 Avian Influenza Virus (AIV) in Chickens. Viruses 2023; 15:v15040977. [PMID: 37112957 PMCID: PMC10146471 DOI: 10.3390/v15040977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/10/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
Transmission of H9N2 avian influenza virus (AIV) can occur in poultry by direct or indirect contact with infected individuals, aerosols, large droplets and fomites. The current study investigated the potential of H9N2 AIV transmission in chickens via a fecal route. Transmission was monitored by exposing naïve chickens to fecal material from H9N2 AIV-infected chickens (model A) and experimentally spiked feces (model B). The control chickens received H9N2 AIV. Results revealed that H9N2 AIV could persist in feces for up to 60-84 h post-exposure (PE). The H9N2 AIV titers in feces were higher at a basic to neutral pH. A higher virus shedding was observed in the exposed chickens of model B compared to model A. We further addressed the efficacy of Toll-like receptor (TLR) ligands to limit transmission in the fecal model. Administration of CpG ODN 2007 or poly(I:C) alone or in combination led to an overall decrease in the virus shedding, with enhanced expression of type I and II interferons (IFNs) and interferon-stimulating genes (ISGs) in different segments of the small intestine. Overall, the study highlighted that the H9N2 AIV can survive in feces and transmit to healthy naïve chickens. Moreover, TLR ligands could be applied to transmission studies to enhance antiviral immunity and reduce H9N2 AIV shedding.
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Affiliation(s)
- Sugandha Raj
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Ayumi Matsuyama-Kato
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Mohammadali Alizadeh
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Nitish Boodhoo
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Eva Nagy
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Samira Mubareka
- Sunnybrook Research Institute, Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M4N 3M5, Canada
| | - Khalil Karimi
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | | | - Shayan Sharif
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
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12
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Kazemifard N, Dehkohneh A, Baradaran Ghavami S. Probiotics and probiotic-based vaccines: A novel approach for improving vaccine efficacy. Front Med (Lausanne) 2022; 9:940454. [PMID: 36313997 PMCID: PMC9606607 DOI: 10.3389/fmed.2022.940454] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 09/07/2022] [Indexed: 11/13/2022] Open
Abstract
Vaccination is defined as the stimulation and development of the adaptive immune system by administering specific antigens. Vaccines' efficacy, in inducing immunity, varies in different societies due to economic, social, and biological conditions. One of the influential biological factors is gut microbiota. Cross-talks between gut bacteria and the host immune system are initiated at birth during microbial colonization and directly control the immune responses and protection against pathogen colonization. Imbalances in the gut microbiota composition, termed dysbiosis, can trigger several immune disorders through the activity of the adaptive immune system and impair the adequate response to the vaccination. The bacteria used in probiotics are often members of the gut microbiota, which have health benefits for the host. Probiotics are generally consumed as a component of fermented foods, affect both innate and acquired immune systems, and decrease infections. This review aimed to discuss the gut microbiota's role in regulating immune responses to vaccination and how probiotics can help induce immune responses against pathogens. Finally, probiotic-based oral vaccines and their efficacy have been discussed.
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Affiliation(s)
- Nesa Kazemifard
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abolfazl Dehkohneh
- Department for Materials and the Environment, Bundesanstalt für Materialforschung und -prüfung (BAM), Berlin, Germany,Department of Biology Chemistry Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Shaghayegh Baradaran Ghavami
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran,*Correspondence: Shaghayegh Baradaran Ghavami
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13
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Saint-Martin V, Quéré P, Trapp S, Guabiraba R. Uncovering the core principles of the gut-lung axis to enhance innate immunity in the chicken. Front Immunol 2022; 13:956670. [PMID: 36268022 PMCID: PMC9577073 DOI: 10.3389/fimmu.2022.956670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Research in mammals has evidenced that proper colonization of the gut by a complex commensal microbial community, the gut microbiota (GM), is critical for animal health and wellbeing. It greatly contributes to the control of infectious processes through competition in the microbial environment while supporting proper immune system development and modulating defence mechanisms at distant organ sites such as the lung: a concept named ‘gut-lung axis’. While recent studies point to a role of the GM in boosting immunity and pathogen resilience also in poultry, the mechanisms underlying this role are largely unknown. In spite of this knowledge gap, GM modulation approaches are today considered as one of the most promising strategies to improve animal health and welfare in commercial poultry production, while coping with the societal demand for responsible, sustainable and profitable farming systems. The majority of pathogens causing economically important infectious diseases in poultry are targeting the respiratory and/or gastrointestinal tract. Therefore, a better understanding of the role of the GM in the development and function of the mucosal immune system is crucial for implementing measures to promote animal robustness in commercial poultry production. The importance of early gut colonization in the chicken has been overlooked or neglected in industrial poultry production systems, where chicks are hampered from acquiring a complex GM from the hen. Here we discuss the concept of strengthening mucosal immunity in the chicken through GM modulation approaches favouring immune system development and functioning along the gut-lung axis, which could be put into practice through improved farming systems, early-life GM transfer, feeding strategies and pre-/probiotics. We also provide original data from experiments with germ-free and conventional chickens demonstrating that the gut-lung axis appears to be functional in chickens. These key principles of mucosal immunity are likely to be relevant for a variety of avian diseases and are thus of far-reaching importance for the poultry sector worldwide.
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14
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Caecal microbiota composition of experimental inbred MHC-B lines infected with IBV differs according to genetics and vaccination. Sci Rep 2022; 12:9995. [PMID: 35705568 PMCID: PMC9199466 DOI: 10.1038/s41598-022-13512-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 05/25/2022] [Indexed: 11/13/2022] Open
Abstract
Interactions between the gut microbiota and the immune system may be involved in vaccine and infection responses. In the present study, we studied the interactions between caecal microbiota composition and parameters describing the immune response in six experimental inbred chicken lines harboring different MHC haplotypes. Animals were challenge-infected with the infectious bronchitis virus (IBV), and half of them were previously vaccinated against this pathogen. We explored to what extent the gut microbiota composition and the genetic line could be related to the immune response, evaluated through flow cytometry. To do so, we characterized the caecal bacterial communities with a 16S rRNA gene amplicon sequencing approach performed one week after the IBV infectious challenge. We observed significant effects of both the vaccination and the genetic line on the microbiota after the challenge infection with IBV, with a lower bacterial richness in vaccinated chickens. We also observed dissimilar caecal community profiles among the different lines, and between the vaccinated and non-vaccinated animals. The effect of vaccination was similar in all the lines, with a reduced abundance of OTU from the Ruminococcacea UCG-014 and Faecalibacterium genera, and an increased abundance of OTU from the Eisenbergiella genus. The main association between the caecal microbiota and the immune phenotypes involved TCRϒδ expression on TCRϒδ+ T cells. This phenotype was negatively associated with OTU from the Escherichia-Shigella genus that were also less abundant in the lines with the highest responses to the vaccine. We proved that the caecal microbiota composition is associated with the IBV vaccine response level in inbred chicken lines, and that the TCRϒδ+ T cells (judged by TCRϒδ expression) may be an important component involved in this interaction, especially with bacteria from the Escherichia-Shigella genus. We hypothesized that bacteria from the Escherichia-Shigella genus increased the systemic level of bacterial lipid antigens, which subsequently mitigated poultry γδ T cells.
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15
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Alqazlan N, Astill J, Raj S, Sharif S. Strategies for enhancing immunity against avian influenza virus in chickens: A review. Avian Pathol 2022; 51:211-235. [PMID: 35297706 DOI: 10.1080/03079457.2022.2054309] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Poultry infection with avian influenza viruses (AIV) is a continuous source of concern for poultry production and human health. Uncontrolled infection and transmission of AIV in poultry increases the potential for viral mutation and reassortment, possibly resulting in the emergence of zoonotic viruses. To this end, implementing strategies to disrupt the transmission of AIVs in poultry, including a wide array of traditional and novel methods, is much needed. Vaccination of poultry is a targeted approach to reduce clinical signs and shedding in infected birds. Strategies aimed at enhancing the effectiveness of AIV vaccines are multi-pronged and include methods directed towards eliciting immune responses in poultry. Strategies include producing vaccines of greater immunogenicity via vaccine type and adjuvant application and increasing bird responsiveness to vaccines by modification of the gastrointestinal tract (GIT) microbiome and dietary interventions. This review provides an in-depth discussion of recent findings surrounding novel AIV vaccines for poultry, including reverse genetics vaccines, vectors, protein vaccines and virus like particles, highlighting their experimental efficacy among other factors such as safety and potential for use in the field. In addition to the type of vaccine employed, vaccine adjuvants also provide an effective way to enhance AIV vaccine efficacy, therefore, research on different types of vaccine adjuvants and vaccine adjuvant delivery strategies is discussed. Finally, the poultry gastrointestinal microbiome is emerging as an important factor in the effectiveness of prophylactic treatments. In this regard, current findings on the effects of the chicken GIT microbiome on AIV vaccine efficacy are summarized here.
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Affiliation(s)
- Nadiyah Alqazlan
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Jake Astill
- Artemis Technologies Inc., Guelph, ON, N1L 1E3, Canada
| | - Sugandha Raj
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Shayan Sharif
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W1, Canada
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16
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Poly (lactic-co-glycolic acid) nanoparticle-based vaccines delivery systems as a novel adjuvant for H9N2 antigen enhance immune responses. Poult Sci 2022; 101:101791. [PMID: 35358927 PMCID: PMC8968667 DOI: 10.1016/j.psj.2022.101791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/05/2022] [Accepted: 02/07/2022] [Indexed: 11/23/2022] Open
Abstract
Poly (lactic-co-glycolic acid) (PLGA) nanoparticle used as vaccine adjuvants have been widely investigated due to their safety, antigen slow-release ability, and good adjuvants activity. In this study, immunopotentiator Alhagi honey polysaccharide encapsulated PLGA nanoparticles (AHPP) and assembled pickering emulsion with AHPP as shell and squalene as core (PPAS) were prepared. Characterization of AHPP and PPAS were investigated. H9N2 absorbed nanoparticles formulations were immunized to chicken, then the magnitude and kinetics of antibody and cellular immune responses were assessed. Our results showed that PPAS had rough strawberry-like surfaces, a large number of antigens could be absorbed on their surfaces through simple mixing. Adjuvant activity of PPAS showed that, PPAS/H9N2 can induce long-lasting and high HI titers, high thymus, spleen, and bursa of fabricius organ index. Moreover, chicken immunized with PPAS/H9N2 showed a mixed high differentiation of CD4+ and CD8a+ T cell, and strong Th1 and Th2-type cytokines mRNA expression. Thus, these findings demonstrated that PPAS could induce a strong and long-term cellular and humoral immune response, and has the potential to serve as an effective vaccine delivery adjuvant system for H9N2 antigen.
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17
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Abstract
The microorganisms associated with an organism, the microbiome, have a strong and wide impact in their host biology. In particular, the microbiome modulates both the host defense responses and immunity, thus influencing the fate of infections by pathogens. Indeed, this immune modulation and/or interaction with pathogenic viruses can be essential to define the outcome of viral infections. Understanding the interplay between the microbiome and pathogenic viruses opens future venues to fight viral infections and enhance the efficacy of antiviral therapies. An increasing number of researchers are focusing on microbiome-virus interactions, studying diverse combinations of microbial communities, hosts, and pathogenic viruses. Here, we aim to review these studies, providing an integrative overview of the microbiome impact on viral infection across different pathosystems.
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Affiliation(s)
- Rubén González
- Instituto de Biología Integrativa de Sistemas, Consejo Superior de Investigaciones Científicas-Universitat de València, Paterna, Valencia, Spain
| | - Santiago F. Elena
- Instituto de Biología Integrativa de Sistemas, Consejo Superior de Investigaciones Científicas-Universitat de València, Paterna, Valencia, Spain
- The Santa Fe Institute, Santa Fe, New Mexico, USA
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18
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Tang X, Liu X, Zhong J, Fang R. Potential Application of Lonicera japonica Extracts in Animal Production: From the Perspective of Intestinal Health. Front Microbiol 2021; 12:719877. [PMID: 34434181 PMCID: PMC8381474 DOI: 10.3389/fmicb.2021.719877] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 07/16/2021] [Indexed: 01/09/2023] Open
Abstract
Lonicera japonica (L. japonica) extract is rich in active substances, such as phenolic acids, essential oils, flavones, saponins, and iridoids, which have a broad spectrum of antioxidant, anti-inflammatory, and anti-microbial effect. Previous studies have demonstrated that L. japonica has a good regulatory effect on animal intestinal health, which can be used as a potential antibiotic substitute product. However, previous studies about intestinal health regulation mainly focus on experimental animals or cells, like mice, rats, HMC-1 Cells, and RAW 264.7 cells. In this review, the intestinal health benefits including antioxidant, anti-inflammatory, and antimicrobial activity, and its potential application in animal production were summarized. Through this review, we can see that the effects and mechanism of L. japonica extract on intestinal health regulation of farm and aquatic animals are still rare and unclear. Further studies could focus on the regulatory mechanism of L. japonica extract on intestinal health especially the protective effects of L. japonica extract on oxidative injury, inflammation, and regulation of intestinal flora in farm animals and aquatic animals, thereby providing references for the rational utilization and application of L. japonica and its extracts in animal production.
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Affiliation(s)
- Xiaopeng Tang
- State Engineering Technology Institute for Karst Desertfication Control, School of Karst Science, Guizhou Normal University, Guiyang, China
| | - Xuguang Liu
- State Engineering Technology Institute for Karst Desertfication Control, School of Karst Science, Guizhou Normal University, Guiyang, China
| | - Jinfeng Zhong
- Hunan Polytechnic of Environment and Biology, College of Biotechnology, Hengyang, China
| | - Rejun Fang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
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19
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Protective effects of gut microbiota and gut microbiota-derived acetate on chicken colibacillosis induced by avian pathogenic Escherichia coli. Vet Microbiol 2021; 261:109187. [PMID: 34399296 DOI: 10.1016/j.vetmic.2021.109187] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 07/20/2021] [Indexed: 02/07/2023]
Abstract
Chicken colibacillosis is caused by avian pathogenic Escherichia coli (APEC), and results in huge economic losses to the poultry industry. With the investigation of the gut-lung axis, more studies have demonstrated the important role of gut microbiota in lung inflammation. The precise role of the gut microbiota in chickens-associated colibacillosis, however, is unknown. Thus, this study assessed the function of the gut microbiota in the chicken defense against APEC infection. Chicken gut microbiota was depleted by drinking water with a mixture of antibiotics (Abx), and subsequently, a model of colibacillosis was established by the intranasal perfusion of APEC. The results showed that gut microbiota protects the chicken challenge by APEC from aggravated lung histopathologic injury, up-regulated pro-inflammatory cytokine production, and increased bacterial load in lung tissues compared with controls. In addition, the air-blood barrier permeability was significantly increased in gut microbiota-depleted chickens compared to the control chickens after challenge with APEC. Furthermore, feeding acetate significantly inhibited the lung inflammatory response and the reduced air-blood permeability induced by APEC infection. The expression of free fatty acid receptor 2 (FFAR2), a receptor for acetate, was also increased in the lung after treatment with acetate. In conclusion, depletion of the gut microbiota resulted in increased susceptibility of chickens to APEC challenge, and gut microbiota derived acetate acted as a protective mediator during the APEC challenge. Novel therapeutic targets that focus on the gut microbiota may be effective in controlling colibacillosis in poultry.
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20
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Das Q, Shay J, Gauthier M, Yin X, Hasted TL, Ross K, Julien C, Yacini H, Kennes YM, Warriner K, Marcone MF, Diarra MS. Effects of Vaccination Against Coccidiosis on Gut Microbiota and Immunity in Broiler Fed Bacitracin and Berry Pomace. Front Immunol 2021; 12:621803. [PMID: 34149685 PMCID: PMC8213364 DOI: 10.3389/fimmu.2021.621803] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 05/04/2021] [Indexed: 11/13/2022] Open
Abstract
Feeding practices have been found to influence gut microbiota which play a major role in immunity of poultry. In the present study, changes in cecal microbiota and humoral responses resulting in the 55 ppm bacitracin (BACI), 1% each of cranberry (CP1) and wild blueberry (BP1) pomace alone or in combination (CP+BP) feeding in broiler Cobb 500 vaccinated or not against coccidiosis were investigated. In the non-vaccinated group, no significant treatment effects were observed on performance parameters. Vaccination significantly affected bird's performance parameters particularly during the growing phase from 10 to 20 days of age. In general, the prevalence of coccidiosis and necrotic enteritis (NE) was reduced by vaccination (P < 0.05). BACI-treated birds showed low intestinal lesion scores, and both CP1 and BP1 feed supplementations reduced Eimeria acervulina and Clostridium perfringens incidences similar to BACI. Vaccination induced change in serum enzymes, minerals, and lipid levels in 21-day old birds while, levels of triglyceride (TRIG) and non-esterified fatty acids (NEFA) were higher (P < 0.05) in CP1 treated non-vaccinated group than in the control. The levels of NEFA were lower in BACI- and CP1-fed birds than in the control in non-vaccinated day 28 old birds. The highest levels of all estimated three immunoglobulins (IgY, IgM, and IgA) were found in the vaccinated birds. Metagenomics analysis of the cecal bacterial community in 21-day old birds showed the presence of Firmicutes (90%), Proteobacteria (5%), Actinobacteria (2%), and Bacteroidetes (2%). In the vaccinated group, an effect of BACI was noted on Proteobacteria (P = 0.03). Vaccination and/or dietary treatments influenced the population of Lactobacillaceae, Enterobacteriaceae, Clostridiaceae, and Streptococcaceae which were among the most abundant families. Overall, this study revealed that besides their beneficial effects on performance, alike bacitracin, berry pomaces in poultry feed have profound impacts on the chicken cecal microbiota and blood metabolites that could be influenced by vaccination against coccidiosis.
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Affiliation(s)
- Quail Das
- Department of Food Science, University of Guelph, Guelph, ON, Canada.,Guelph Research and Development Centre, Agriculture and Agri-Food Canada (AAFC), Guelph, ON, Canada
| | - Julie Shay
- Ottawa Laboratory (Carling) - Research and Development, Canadian Food Inspection Agency, Ottawa, ON, Canada
| | - Martin Gauthier
- Biological Informatics Centre of Excellence, AAFC, Saint-Hyacinthe, QC, Canada
| | - Xianhua Yin
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada (AAFC), Guelph, ON, Canada
| | - Teri-Lyn Hasted
- Department of Food Science, University of Guelph, Guelph, ON, Canada.,Guelph Research and Development Centre, Agriculture and Agri-Food Canada (AAFC), Guelph, ON, Canada
| | - Kelly Ross
- Summerland Research and Development Centre, AAFC, Summerland, BC, Canada
| | - Carl Julien
- Centre de recherche en sciences animales de Deschambault, Deschambault, QC, Canada
| | - Hassina Yacini
- Centre de recherche en sciences animales de Deschambault, Deschambault, QC, Canada
| | - Yan Martel Kennes
- Centre de recherche en sciences animales de Deschambault, Deschambault, QC, Canada
| | - Keith Warriner
- Department of Food Science, University of Guelph, Guelph, ON, Canada
| | - Massimo F Marcone
- Department of Food Science, University of Guelph, Guelph, ON, Canada
| | - Moussa S Diarra
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada (AAFC), Guelph, ON, Canada
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21
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Yu K, Choi I, Yun CH. Immunosecurity: immunomodulants enhance immune responses in chickens. Anim Biosci 2021; 34:321-337. [PMID: 33705619 PMCID: PMC7961195 DOI: 10.5713/ab.20.0851] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 02/01/2021] [Indexed: 02/06/2023] Open
Abstract
The global population has increased with swift urbanization in developing countries, and it is likely to result in a high demand for animal-derived protein-rich foods. Animal farming has been constantly affected by various stressful conditions, which can be categorized into physical, environmental, nutritional, and biological factors. Such conditions could be exacerbated by banning on the use of antibiotics as a growth promoter together with a pandemic situation including, but not limited to, African swine fever, avian influenza, and foot-and-mouth disease. To alleviate these pervasive tension, various immunomodulants have been suggested as alternatives for antibiotics. Various studies have investigated how stressors (i.e., imbalanced nutrition, dysbiosis, and disease) could negatively affect nutritional physiology in chickens. Importantly, the immune system is critical for host protective activity against pathogens, but at the same time excessive immune responses negatively affect its productivity. Yet, comprehensive review articles addressing the impact of such stress factors on the immune system of chickens are scarce. In this review, we categorize these stressors and their effects on the immune system of chickens and attempt to provide immunomodulants which can be a solution to the aforementioned problems facing the chicken industry.
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Affiliation(s)
- Keesun Yu
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Inhwan Choi
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Cheol-Heui Yun
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea.,Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea.,Center for Food Bioconvergence, Seoul National University, Seoul 08826, Korea
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22
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Alqazlan N, Astill J, Taha-Abdelaziz K, Nagy É, Bridle B, Sharif S. Probiotic Lactobacilli Enhance Immunogenicity of an Inactivated H9N2 Influenza Virus Vaccine in Chickens. Viral Immunol 2020; 34:86-95. [PMID: 33236974 DOI: 10.1089/vim.2020.0209] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Avian influenza viruses (AIVs) infect a wide range of hosts, including humans and many avian species. Efforts have been made to control this pathogen in chickens using vaccination programs, but that has been met with varying degrees of success. Therefore, identification of more efficacious vaccination strategies is warranted. This study was undertaken to investigate the potential effects of probiotics on the immunogenicity of a beta-propiolactone-whole inactivated virus (WIV) vaccine of H9N2 subtype adjuvanted with the Toll-like receptor-21 ligand, CpG oligodeoxynucleotides 2007 (CpG). Eighty-four 1-day-old White Leghorn layers were allocated into six groups. Two out of six groups received a mixture of probiotic Lactobacillus spp. (PROB) biweekly from days 1 35 of age. Chickens were intramuscularly vaccinated with WIV either alone or adjuvanted with AddaVax™ (WIV+Add) or CpG (WIV+CpG), and one group received saline (phosphate-buffered saline). Primary and secondary vaccinations occurred at days 14 and 28 of age, respectively. The results revealed that the group that received probiotics and was vaccinated with CpG-adjuvanted WIV H9N2 vaccine had higher hemagglutination inhibition titers than the other treatment groups at days 14 and 21 postprimary vaccination. Probiotics did not induce higher IgM or IgY titers in chickens receiving the WIV vaccine only. Concerning their effect on cell-mediated immune responses, probiotics enhanced interferon-gamma (IFN-γ) gene expression and significantly increased secretion of IFN-γ protein by splenocytes in chickens vaccinated with CpG-adjuvanted WIV H9N2. Together, these findings suggest the use of probiotics to enhance the immunogenicity of CpG-adjuvanted WIV H9N2 vaccines. Additional studies are required to better understand the specific interactions between probiotics and the gut microbiota and different types of cells of the gastrointestinal tract to decipher the underlying mechanisms of how probiotics modulate immune responses to vaccines.
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Affiliation(s)
- Nadiyah Alqazlan
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Jake Astill
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Khaled Taha-Abdelaziz
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada.,Pathology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Éva Nagy
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Byram Bridle
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Shayan Sharif
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
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23
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Meijerink N, Kers JG, Velkers FC, van Haarlem DA, Lamot DM, de Oliveira JE, Smidt H, Stegeman JA, Rutten VPMG, Jansen CA. Early Life Inoculation With Adult-Derived Microbiota Accelerates Maturation of Intestinal Microbiota and Enhances NK Cell Activation in Broiler Chickens. Front Vet Sci 2020; 7:584561. [PMID: 33330708 PMCID: PMC7710667 DOI: 10.3389/fvets.2020.584561] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 10/26/2020] [Indexed: 01/06/2023] Open
Abstract
Studies in mammals, including chickens, have shown that the development of the immune system is affected by interactions with intestinal microbiota. Early life microbial colonization may affect the development of innate and adaptive immunity and may contribute to lasting effects on health and resilience of broiler chickens. We inoculated broiler chickens with adult-derived-microbiota (AM) to investigate their effects on intestinal microbiota composition and natural killer (NK) cells, amongst other immune cells. We hypothesized that AM inoculation directly upon hatch (day 0) would induce an alteration in microbiota composition shortly after hatch, and subsequently affect (subsets of) intestinal NK cells and their activation. Microbiota composition of caecal and ileal content of chickens of 1, 3, 7, 14, 21, and 35 days of age was assessed by sequencing of 16S ribosomal RNA gene amplicons. In parallel, subsets and activation of intestinal NK cells were analyzed by flow cytometry. In caecal content of 1- and 3-day-old AM chickens, a higher alpha-diversity (Faith's phylogenetic diversity) was observed compared to control chickens, whereas ileal microbiota were unaffected. Regarding beta-diversity, caecal microbiota profiles could be clustered into three distinct community types. Cluster A represented caecal microbiota of 1-day-old AM chickens and 1- and 3-day-old control chickens. Cluster B included microbiota of seven of eight 3- and 7-day-old AM and 7-day-old control chickens, and cluster C comprised microbiota of all chickens of 14-days and older, independent of inoculation. In 3-day-old AM chickens an increase in the percentages of intestinal IL-2Rα+NK cells and activated NK cells was observed compared to control chickens of the same age. In addition, an increase in relative numbers of intestinal cytotoxic CD8αα+T cells was observed in 14- and 21-day-old AM chickens. Taken together, these results indicate that early exposure to AM shapes and accelerates the maturation of caecal microbiota, which is paralleled by an increase in IL-2Rα+NK cells and enhanced NK cell activation. The observed association between early life development of intestinal microbiota and immune system indicates possibilities to apply microbiota-targeted strategies that can accelerate maturation of intestinal microbiota and strengthen the immune system, thereby improving the health and resilience of broiler chickens.
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Affiliation(s)
- Nathalie Meijerink
- Division Infectious Diseases and Immunology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Jannigje G. Kers
- Division Farm Animal Health, Department Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, Netherlands
| | - Francisca C. Velkers
- Division Farm Animal Health, Department Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Daphne A. van Haarlem
- Division Infectious Diseases and Immunology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - David M. Lamot
- Cargill Animal Nutrition and Health Innovation Center, Velddriel, Netherlands
| | | | - Hauke Smidt
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, Netherlands
| | - J. Arjan Stegeman
- Division Farm Animal Health, Department Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Victor P. M. G. Rutten
- Division Infectious Diseases and Immunology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
- Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa
| | - Christine A. Jansen
- Division Infectious Diseases and Immunology, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
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24
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Gu P, Wusiman A, Zhang Y, Cai G, Xu S, Zhu S, Liu Z, Hu Y, Liu J, Wang D. Polyethylenimine-coated PLGA nanoparticles-encapsulated Angelica sinensis polysaccharide as an adjuvant for H9N2 vaccine to improve immune responses in chickens compared to Alum and oil-based adjuvants. Vet Microbiol 2020; 251:108894. [PMID: 33096470 DOI: 10.1016/j.vetmic.2020.108894] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 10/11/2020] [Indexed: 12/23/2022]
Abstract
Inactivated H9N2 influenza vaccines required adjuvants to induce strong immune responses to protect poultry from the infections of H9N2 influenza viruses. Recently, positively charged nanoparticles-based adjuvant delivery systems have been extensively investigated as the novel vaccine adjuvant due to the protection antigens and drugs from degradation, promoting antigens and drugs uptake by antigen presenting cells (APCs), and inducing strong humoral and cellular immune responses. In this study, the immunostimulant Angelica sinensis polysaccharide (ASP) was encapsulated into Poly (lactic-co-glycolic acid) PLGA nanoparticles, and the Polyethylenimine (PEI) was coated on the nanoparticles to develop a novel adjuvant (ASP-PLGA-PEI). To further investigate the adjuvant activities of ASP-PLGA-PEI nanoparticles for H9N2 vaccines in chickens and compare the adjuvant activities of nanoparticles adjuvant and conventional adjuvants (Alum and oil-based adjuvant), the H9N2 antigen was incubated with three different adjuvants and then immunized with chickens to evaluate the ability of inducing humoral and cellular immune responses. The results revealed that compared to Alum adjuvant, ASP-PLGA-PEI nanoparticles adjuvant stimulated higher antibody responses, promoted the activation of CD4+ T cells and CD8+ T cells, increased the expression of Th1 cytokines IFN-γ. Compared to oil-based adjuvant (ISA-206), ASP-PLGA-PEI nanoparticles adjuvant induced comparable antibody immune responses at later period after immunization, improved the activation of CD4+ T cells and CD8+ T cells. Therefore, compared to Alum and oil-based adjuvant, the ASP-PLGA-PEI nanoparticles serve as an efficient adjuvant for H9N2 vaccine and have the potential to induce vigorous humoral and cellular immune responses in chickens.
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Affiliation(s)
- Pengfei Gu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Adelijiang Wusiman
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yue Zhang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Gaofeng Cai
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Shuwen Xu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Shaowu Zhu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zhenguang Liu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yuanliang Hu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Jiaguo Liu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Deyun Wang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, PR China.
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Probiotic Lactobacilli Limit Avian Influenza Virus Subtype H9N2 Replication in Chicken Cecal Tonsil Mononuclear Cells. Vaccines (Basel) 2020; 8:vaccines8040605. [PMID: 33066282 PMCID: PMC7712974 DOI: 10.3390/vaccines8040605] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/06/2020] [Accepted: 10/09/2020] [Indexed: 12/22/2022] Open
Abstract
Low pathogenic avian influenza virus (LPAIV) H9N2 poses significant threat to animal and human health. The growing interest in beneficial effects of probiotic bacteria on host immune system has led to research efforts studying their interaction with cells of host immune system. However, the role of lactobacilli in inducing antiviral responses in lymphoid tissue cells requires further investigation. The objective of the present study was to examine the antiviral and immunostimulatory effects of lactobacilli bacteria on chicken cecal tonsils (CT) cells against H9N2 LPAIV. CT mononuclear cells were stimulated with probiotic Lactobacillus spp mixture either alone or in combination with a Toll-like receptor (TLR)21 ligand, CpG oligodeoxynucleotides (CpG). Pre-treatment of CT cells with probiotic lactobacilli, alone or in combination with CpG, significantly reduced H9N2 LPAIV replication. Furthermore, lactobacilli alone elicited cytokine expression, including IL-2, IFN-γ, IL-1β, IL-6, and IL-12, and IL-10, while when combined with CpG, a significantly higher expression of (interferon-stimulated gene (viperin)), IL-12, IL-6, CXCLi2, and IL-1β was observed. However, none of these treatments induced significant changes in nitric oxide production by CT cells. In conclusion, probiotic lactobacilli demonstrated a modulatory effect on CT cells, and this correlated with enhanced antiviral immunity and reduced H9N2 LPAIV viral replication.
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Lemos MPL, Saraiva MMS, Leite EL, Silva NMV, Vasconcelos PC, Giachetto PF, Freitas Neto OC, Givisiez PEN, Gebreyes WA, Oliveira CJB. The posthatch prophylactic use of ceftiofur affects the cecal microbiota similar to the dietary sanguinarine supplementation in broilers. Poult Sci 2020; 99:6013-6021. [PMID: 33142520 PMCID: PMC7647783 DOI: 10.1016/j.psj.2020.06.078] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 06/27/2020] [Accepted: 06/30/2020] [Indexed: 11/17/2022] Open
Abstract
The prophylactic administration of ceftiofur to newly hatched chicks is a common practice in some hatcheries worldwide to mitigate early gastrointestinal infections caused by Enterobacteriaceae. In spite of the crucial role of the gut microbiome for the broiler's health, there is still limited information on how the microbial composition is affected by such procedure. We investigated the effects of posthatch prophylactic application of ceftiofur on the cecal microbiota of 14-day-old broilers fed regular or sanguinarine-supplemented diets. DNA samples were extracted from cecal contents, amplified for the V3-V4 regions of the microbial 16S rRNA gene, and sequenced in a high-throughput sequencing platform (Illumina MiSeq). After downstream bioinformatics and statistical analyses, our results demonstrated that both ceftiofur and sanguinarine treatments similarly increased the proportions of the phylum Bacteroidetes and the genera Bacteroides and Megamonas, whereas reduced the relative abundances of Firmicutes and Lachnospiraceae in the ceca of the birds. Such changes are probably associated with increased carbohydrate fermentation processes favoring the production of short-chain fatty acids. This was also corroborated by the functional prediction findings, which suggest an increase in some metabolic pathways associated with digestibility in broilers receiving ceftiofur. Considering that antimicrobial stewardship in animal production systems is strongly needed to mitigate the threat of antimicrobial resistance, our findings show that supplementation with a phytogenic feed additive can lead to a similar microbial composition in the ceca of commercial broiler chickens, suggesting that the use of alternative products could lead to functional modifications without increasing pressure for antimicrobial resistance.
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Affiliation(s)
- Mateus P L Lemos
- Department of Veterinary Sciences, Center for Agricultural Sciences, Federal University of Paraiba (CCA/UFPB), Areia, PB, Brazil
| | - Mauro M S Saraiva
- Department of Animal Science, Center for Agricultural Sciences, Federal University of Paraiba (CCA/UFPB), Areia, PB, Brazil
| | - Elma L Leite
- Department of Veterinary Sciences, Center for Agricultural Sciences, Federal University of Paraiba (CCA/UFPB), Areia, PB, Brazil
| | - Núbia M V Silva
- Department of Animal Science, Center for Agricultural Sciences, Federal University of Paraiba (CCA/UFPB), Areia, PB, Brazil
| | - Priscylla C Vasconcelos
- Department of Animal Science, Center for Agricultural Sciences, Federal University of Paraiba (CCA/UFPB), Areia, PB, Brazil
| | - Poliana F Giachetto
- Laboratório de Bioinformática Aplicada (LBA), Embrapa Informática Agropecuária (EMBRAPA), Campinas, SP, Brazil
| | - Oliveiro C Freitas Neto
- Department of Preventive Veterinary Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Patrícia E N Givisiez
- Department of Animal Science, Center for Agricultural Sciences, Federal University of Paraiba (CCA/UFPB), Areia, PB, Brazil
| | - Wondwossen A Gebreyes
- Department of Preventive Veterinary Medicine, Veterinary College, The Ohio State University, Columbus-OH, USA; Global One Health initiative (GOHi), The Ohio State University, Columbus, OH, USA
| | - Celso J B Oliveira
- Department of Animal Science, Center for Agricultural Sciences, Federal University of Paraiba (CCA/UFPB), Areia, PB, Brazil; Global One Health initiative (GOHi), The Ohio State University, Columbus, OH, USA.
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27
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Zhang Y, Wu Q, Zhou M, Luo Z, Lv L, Pei J, Wang C, Chai B, Sui B, Huang F, Fu ZF, Zhao L. Composition of the murine gut microbiome impacts humoral immunity induced by rabies vaccines. Clin Transl Med 2020; 10:e161. [PMID: 32898335 PMCID: PMC7443138 DOI: 10.1002/ctm2.161] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/12/2020] [Accepted: 08/12/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Gut microbiome plays a crucial role in modulating human and animal immune responses. Rabies is a fatal zoonosis causing encephalitis in mammals and vaccination is the most effective method to control and eliminate rabies. The relationship between the gut microbiome and humoral immunity post rabies vaccination has not been investigated yet. METHODS Mice orally administrated with a cocktail of broad-spectrum antibiotics were inoculated with rabies vaccines, and humoral immune response was analyzed at indicated time points. The 16S ribosomal RNA (16S rRNA) gene sequencing was performed on fecal samples from groups in vancomycin-treated and untreated mice. Mice were immunized with rabies vaccines and virus-neutralizing antibody (VNA) levels were measured, resulting in VNA high (H) and low (L) groups. Then 16S rRNA gene sequencing was performed on fecal samples from H and L group mice. RESULTS After antibiotic (Abx) treatment, mice had decreased levels of rabies virus (RABV)-specific IgM, IgG, and virus-neutralizing antibody compared with untreated mice. Abx-treated mice had fewer T follicular helper cells, germinal center B cells, and antibody secreting cells (ASCs) in lymph nodes than did untreated mice. Gut microbiome facilitated secondary immune responses by increasing the generation of ASCs. Treatment with vancomycin alone had a similarly impaired effect on the humoral immune responses compared with Abx-treated mice. From the natural population group of mice received rabies vaccines, VNA titers vary significantly and the abundance of Clostridiales and Lachnospiraceae was positively associated with the antibody titers in mice. CONCLUSIONS Our results provide the evidence that the gut microbiome impacts humoral immunity post rabies vaccination, and further investigation of the mechanism will help the development of novel adjuvants and vaccines.
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Affiliation(s)
- Yachun Zhang
- State Key Laboratory of Agricultural MicrobiologyHuazhong Agricultural UniversityWuhanChina
- Key Laboratory of Preventive Veterinary Medicine of Hubei ProvinceCollege of Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Qiong Wu
- State Key Laboratory of Agricultural MicrobiologyHuazhong Agricultural UniversityWuhanChina
- Key Laboratory of Preventive Veterinary Medicine of Hubei ProvinceCollege of Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Ming Zhou
- State Key Laboratory of Agricultural MicrobiologyHuazhong Agricultural UniversityWuhanChina
- Key Laboratory of Preventive Veterinary Medicine of Hubei ProvinceCollege of Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Zhaochen Luo
- State Key Laboratory of Agricultural MicrobiologyHuazhong Agricultural UniversityWuhanChina
- Key Laboratory of Preventive Veterinary Medicine of Hubei ProvinceCollege of Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Lei Lv
- State Key Laboratory of Agricultural MicrobiologyHuazhong Agricultural UniversityWuhanChina
- Key Laboratory of Preventive Veterinary Medicine of Hubei ProvinceCollege of Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Jie Pei
- State Key Laboratory of Agricultural MicrobiologyHuazhong Agricultural UniversityWuhanChina
- Key Laboratory of Preventive Veterinary Medicine of Hubei ProvinceCollege of Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Caiqian Wang
- State Key Laboratory of Agricultural MicrobiologyHuazhong Agricultural UniversityWuhanChina
- Key Laboratory of Preventive Veterinary Medicine of Hubei ProvinceCollege of Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Benjie Chai
- State Key Laboratory of Agricultural MicrobiologyHuazhong Agricultural UniversityWuhanChina
- Key Laboratory of Preventive Veterinary Medicine of Hubei ProvinceCollege of Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Baokun Sui
- State Key Laboratory of Agricultural MicrobiologyHuazhong Agricultural UniversityWuhanChina
- Key Laboratory of Preventive Veterinary Medicine of Hubei ProvinceCollege of Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Fei Huang
- State Key Laboratory of Agricultural MicrobiologyHuazhong Agricultural UniversityWuhanChina
- Key Laboratory of Preventive Veterinary Medicine of Hubei ProvinceCollege of Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Zhen F. Fu
- State Key Laboratory of Agricultural MicrobiologyHuazhong Agricultural UniversityWuhanChina
- Key Laboratory of Preventive Veterinary Medicine of Hubei ProvinceCollege of Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Ling Zhao
- State Key Laboratory of Agricultural MicrobiologyHuazhong Agricultural UniversityWuhanChina
- Key Laboratory of Preventive Veterinary Medicine of Hubei ProvinceCollege of Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
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Munyaka PM, Blanc F, Estellé J, Lemonnier G, Leplat JJ, Rossignol MN, Jardet D, Plastow G, Billon Y, Willing BP, Rogel-Gaillard C. Discovery of Predictors of Mycoplasma hyopneumoniae Vaccine Response Efficiency in Pigs: 16S rRNA Gene Fecal Microbiota Analysis. Microorganisms 2020; 8:E1151. [PMID: 32751315 PMCID: PMC7464067 DOI: 10.3390/microorganisms8081151] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/22/2020] [Accepted: 07/27/2020] [Indexed: 01/18/2023] Open
Abstract
The gut microbiota comprises a large and diverse community of bacteria that play a significant role in swine health. Indeed, there is a tight association between the enteric immune system and the overall composition and richness of the microbiota, which is key in the induction, training and function of the host immunity, and may therefore, influence the immune response to vaccination. Using vaccination against Mycoplasma hyopneumoniae (M. hyo) as a model, we investigated the potential of early-life gut microbiota in predicting vaccine response and explored the post-vaccination dynamics of fecal microbiota at later time points. At 28 days of age (0 days post-vaccination; dpv), healthy piglets were vaccinated, and a booster vaccine was administered at 21 dpv. Blood samples were collected at 0, 21, 28, 35, and 118 dpv to measure M. hyo-specific IgG levels. Fecal samples for 16S rRNA gene amplicon sequencing were collected at 0, 21, 35, and 118 dpv. The results showed variability in antibody response among individual pigs, whilst pre-vaccination operational taxonomic units (OTUs) primarily belonging to Prevotella, [Prevotella], Anaerovibrio, and Sutterella appeared to best-predict vaccine response. Microbiota composition did not differ between the vaccinated and non-vaccinated pigs at post-vaccination time points, but the time effect was significant irrespective of the animals' vaccination status. Our study provides insight into the role of pre-vaccination gut microbiota composition in vaccine response and emphasizes the importance of studies on full metagenomes and microbial metabolites aimed at deciphering the role of specific bacteria and bacterial genes in the modulation of vaccine response.
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Affiliation(s)
- Peris M. Munyaka
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350 Jouy-en-Josas, France; (P.M.M.); (F.B.); (J.E.); (G.L.); (J.-J.L.); (M.-N.R.); (D.J.)
- Department of Agricultural, Food and Nutritional Sciences, University of Alberta, Edmonton, AB T6G 2R3, Canada; (G.P.); (B.P.W.)
| | - Fany Blanc
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350 Jouy-en-Josas, France; (P.M.M.); (F.B.); (J.E.); (G.L.); (J.-J.L.); (M.-N.R.); (D.J.)
| | - Jordi Estellé
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350 Jouy-en-Josas, France; (P.M.M.); (F.B.); (J.E.); (G.L.); (J.-J.L.); (M.-N.R.); (D.J.)
| | - Gaëtan Lemonnier
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350 Jouy-en-Josas, France; (P.M.M.); (F.B.); (J.E.); (G.L.); (J.-J.L.); (M.-N.R.); (D.J.)
| | - Jean-Jacques Leplat
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350 Jouy-en-Josas, France; (P.M.M.); (F.B.); (J.E.); (G.L.); (J.-J.L.); (M.-N.R.); (D.J.)
| | - Marie-Noëlle Rossignol
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350 Jouy-en-Josas, France; (P.M.M.); (F.B.); (J.E.); (G.L.); (J.-J.L.); (M.-N.R.); (D.J.)
| | - Déborah Jardet
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350 Jouy-en-Josas, France; (P.M.M.); (F.B.); (J.E.); (G.L.); (J.-J.L.); (M.-N.R.); (D.J.)
| | - Graham Plastow
- Department of Agricultural, Food and Nutritional Sciences, University of Alberta, Edmonton, AB T6G 2R3, Canada; (G.P.); (B.P.W.)
- Livestock Gentec, University of Alberta, Edmonton, AB T6G 2R3, Canada
| | | | - Benjamin P. Willing
- Department of Agricultural, Food and Nutritional Sciences, University of Alberta, Edmonton, AB T6G 2R3, Canada; (G.P.); (B.P.W.)
| | - Claire Rogel-Gaillard
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350 Jouy-en-Josas, France; (P.M.M.); (F.B.); (J.E.); (G.L.); (J.-J.L.); (M.-N.R.); (D.J.)
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The Microbiota Contributes to the Control of Highly Pathogenic H5N9 Influenza Virus Replication in Ducks. J Virol 2020; 94:JVI.00289-20. [PMID: 32102887 DOI: 10.1128/jvi.00289-20] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 02/23/2020] [Indexed: 12/11/2022] Open
Abstract
Ducks usually show little or no clinical signs following highly pathogenic avian influenza virus infection. In order to analyze whether the microbiota could contribute to the control of influenza virus replication in ducks, we used a broad-spectrum oral antibiotic treatment to deplete the microbiota before infection with a highly pathogenic H5N9 avian influenza virus. Antibiotic-treated ducks and nontreated control ducks did not show any clinical signs following H5N9 virus infection. We did not detect any significant difference in virus titers neither in the respiratory tract nor in the brain nor spleen. However, we found that antibiotic-treated H5N9 virus-infected ducks had significantly increased intestinal virus excretion at days 3 and 5 postinfection. This was associated with a significantly decreased antiviral immune response in the intestine of antibiotic-treated ducks. Our findings highlight the importance of an intact microbiota for an efficient control of avian influenza virus replication in ducks.IMPORTANCE Ducks are frequently infected with avian influenza viruses belonging to multiple subtypes. They represent an important reservoir species of avian influenza viruses, which can occasionally be transmitted to other bird species or mammals, including humans. Ducks thus have a central role in the epidemiology of influenza virus infection. Importantly, ducks usually show little or no clinical signs even following infection with a highly pathogenic avian influenza virus. We provide evidence that the microbiota contributes to the control of influenza virus replication in ducks by modulating the antiviral immune response. Ducks are able to control influenza virus replication more efficiently when they have an intact intestinal microbiota. Therefore, maintaining a healthy microbiota by limiting perturbations to its composition should contribute to the prevention of avian influenza virus spread from the duck reservoir.
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