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Liu Y, Long M, Wang Y, Liang Z, Dong Y, Qu M, Ge X, Nan Y, Chen Y, Zhou X. Multicomponent Pathogen-Mimicking Nanoparticles Induce Intestinal Immune Responses against Paratuberculosis. ACS Biomater Sci Eng 2024; 10:3387-3400. [PMID: 38656158 DOI: 10.1021/acsbiomaterials.3c01861] [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] [Indexed: 04/26/2024]
Abstract
Given the worldwide problem posed by enteric pathogens, the discovery of safe and efficient intestinal adjuvants combined with novel antigen delivery techniques is essential to the design of mucosal vaccines. In this work, we designed poly (lactic-co-glycolic acid) (PLGA)-based nanoparticles (NPs) to codeliver all-trans retinoic acid (atRA), novel antigens, and CpG. To address the insolubility of the intestinal adjuvant atRA, we utilized PLGA to encapsulate atRA and form a "nanocapsid" with polydopamine. By leveraging polydopamine, we adsorbed the water-soluble antigens and the TLR9 agonist CpG onto the NPs' surface, resulting in the pathogen-mimicking PLPCa NPs. In this study, the novel fusion protein (HBf), consisting of the Mycobacterium avium subspecies paratuberculosis antigens HBHA, Ag85B, and Bfra, was coloaded onto the NPs. In vitro, PLPCa NPs were shown to promote the activation and maturation of bone marrow-derived dendritic cells. Additionally, we found that PLPCa NPs created an immune-rich microenvironment at the injection site following intramuscular administration. From the results, the PLPCa NPs induced strong IgA levels in the gut in addition to enhancing powerful systemic immune responses. Consequently, significant declines in the bacterial burden and inflammatory score were noted in PLPCa NPs-treated mice. In summary, PLPCa can serve as a novel and safe vaccine delivery platform against gut pathogens, such as paratuberculosis, capable of activating both systemic and intestinal immunity.
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Affiliation(s)
- Yiduo Liu
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Meizhen Long
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Yuanzhi Wang
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Zhengmin Liang
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Yuhui Dong
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Mengjin Qu
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Xin Ge
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Yue Nan
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Yulan Chen
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Xiangmei Zhou
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, P. R. China
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Abdelaziz K, Helmy YA, Yitbarek A, Hodgins DC, Sharafeldin TA, Selim MSH. Advances in Poultry Vaccines: Leveraging Biotechnology for Improving Vaccine Development, Stability, and Delivery. Vaccines (Basel) 2024; 12:134. [PMID: 38400118 PMCID: PMC10893217 DOI: 10.3390/vaccines12020134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024] Open
Abstract
With the rapidly increasing demand for poultry products and the current challenges facing the poultry industry, the application of biotechnology to enhance poultry production has gained growing significance. Biotechnology encompasses all forms of technology that can be harnessed to improve poultry health and production efficiency. Notably, biotechnology-based approaches have fueled rapid advances in biological research, including (a) genetic manipulation in poultry breeding to improve the growth and egg production traits and disease resistance, (b) rapid identification of infectious agents using DNA-based approaches, (c) inclusion of natural and synthetic feed additives to poultry diets to enhance their nutritional value and maximize feed utilization by birds, and (d) production of biological products such as vaccines and various types of immunostimulants to increase the defensive activity of the immune system against pathogenic infection. Indeed, managing both existing and newly emerging infectious diseases presents a challenge for poultry production. However, recent strides in vaccine technology are demonstrating significant promise for disease prevention and control. This review focuses on the evolving applications of biotechnology aimed at enhancing vaccine immunogenicity, efficacy, stability, and delivery.
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Affiliation(s)
- Khaled Abdelaziz
- Department of Animal and Veterinary Science, College of Agriculture, Forestry and Life Sciences, Clemson University Poole Agricultural Center, Jersey Ln #129, Clemson, SC 29634, USA
- Clemson University School of Health Research (CUSHR), Clemson, SC 29634, USA
| | - Yosra A. Helmy
- Department of Veterinary Science, Martin-Gatton College of Agriculture, Food, and Environment, University of Kentucky, Lexington, KY 40546, USA;
| | - Alexander Yitbarek
- Department of Animal & Food Sciences, University of Delaware, 531 S College Ave, Newark, DE 19716, USA;
| | - Douglas C. Hodgins
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Tamer A. Sharafeldin
- Department of Veterinary Biomedical Science, Animal Disease Research and Diagnostic Laboratory, South Dakota State University, Brookings, SD 57007, USA; (T.A.S.); (M.S.H.S.)
| | - Mohamed S. H. Selim
- Department of Veterinary Biomedical Science, Animal Disease Research and Diagnostic Laboratory, South Dakota State University, Brookings, SD 57007, USA; (T.A.S.); (M.S.H.S.)
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Gloanec N, Guyard-Nicodème M, Brunetti R, Quesne S, Keita A, Chemaly M, Dory D. Plasmid DNA Prime/Protein Boost Vaccination against Campylobacter jejuni in Broilers: Impact of Vaccine Candidates on Immune Responses and Gut Microbiota. Pharmaceutics 2023; 15:pharmaceutics15051397. [PMID: 37242639 DOI: 10.3390/pharmaceutics15051397] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
Campylobacter infections, traced to poultry products, are major bacterial foodborne zoonoses, and vaccination is a potential solution to reduce these infections. In a previous experimental trial using a plasmid DNA prime/recombinant protein boost vaccine regimen, two vaccine candidates (YP437 and YP9817) induced a partially protective immune response against Campylobacter in broilers, and an impact of the protein batch on vaccine efficacy was suspected. This new study was designed to evaluate different batches of the previously studied recombinant proteins (called YP437A, YP437P and YP9817P) and to enhance the immune responses and gut microbiota studies after a C. jejuni challenge. Throughout the 42-day trial in broilers, caecal Campylobacter load, specific antibodies in serum and bile, the relative expression of cytokines and β-defensins, and caecal microbiota were assessed. Despite there being no significant reduction in Campylobacter in the caecum of vaccinated groups, specific antibodies were detected in serum and bile, particularly for YP437A and YP9817P, whereas the production of cytokines and β-defensins was not significant. The immune responses differed according to the batch. A slight change in microbiota was demonstrated in response to vaccination against Campylobacter. The vaccine composition and/or regimen must be further optimised.
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Affiliation(s)
- Noémie Gloanec
- GVB-Viral Genetics and Biosafety Unit, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 22440 Ploufragan, France
- HQPAP-Unit of Hygiene and Quality of Poultry and Pork Products, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 22440 Ploufragan, France
- UFR of Life Sciences Environment, University of Rennes 1, 35700 Rennes, France
| | - Muriel Guyard-Nicodème
- HQPAP-Unit of Hygiene and Quality of Poultry and Pork Products, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 22440 Ploufragan, France
| | - Raphaël Brunetti
- GVB-Viral Genetics and Biosafety Unit, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 22440 Ploufragan, France
| | - Ségolène Quesne
- HQPAP-Unit of Hygiene and Quality of Poultry and Pork Products, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 22440 Ploufragan, France
| | - Alassane Keita
- SELEAC-Avian Breeding and Experimental Department, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 22440 Ploufragan, France
| | - Marianne Chemaly
- HQPAP-Unit of Hygiene and Quality of Poultry and Pork Products, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 22440 Ploufragan, France
| | - Daniel Dory
- GVB-Viral Genetics and Biosafety Unit, French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 22440 Ploufragan, France
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Antimicrobial Resistance and Recent Alternatives to Antibiotics for the Control of Bacterial Pathogens with an Emphasis on Foodborne Pathogens. Antibiotics (Basel) 2023; 12:antibiotics12020274. [PMID: 36830185 PMCID: PMC9952301 DOI: 10.3390/antibiotics12020274] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 01/21/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023] Open
Abstract
Antimicrobial resistance (AMR) is one of the most important global public health problems. The imprudent use of antibiotics in humans and animals has resulted in the emergence of antibiotic-resistant bacteria. The dissemination of these strains and their resistant determinants could endanger antibiotic efficacy. Therefore, there is an urgent need to identify and develop novel strategies to combat antibiotic resistance. This review provides insights into the evolution and the mechanisms of AMR. Additionally, it discusses alternative approaches that might be used to control AMR, including probiotics, prebiotics, antimicrobial peptides, small molecules, organic acids, essential oils, bacteriophage, fecal transplants, and nanoparticles.
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Taha-Abdelaziz K, Singh M, Sharif S, Sharma S, Kulkarni RR, Alizadeh M, Yitbarek A, Helmy YA. Intervention Strategies to Control Campylobacter at Different Stages of the Food Chain. Microorganisms 2023; 11:microorganisms11010113. [PMID: 36677405 PMCID: PMC9866650 DOI: 10.3390/microorganisms11010113] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/16/2022] [Accepted: 12/28/2022] [Indexed: 01/04/2023] Open
Abstract
Campylobacter is one of the most common bacterial pathogens of food safety concern. Campylobacter jejuni infects chickens by 2-3 weeks of age and colonized chickens carry a high C. jejuni load in their gut without developing clinical disease. Contamination of meat products by gut contents is difficult to prevent because of the high numbers of C. jejuni in the gut, and the large percentage of birds infected. Therefore, effective intervention strategies to limit human infections of C. jejuni should prioritize the control of pathogen transmission along the food supply chain. To this end, there have been ongoing efforts to develop innovative ways to control foodborne pathogens in poultry to meet the growing customers' demand for poultry meat that is free of foodborne pathogens. In this review, we discuss various approaches that are being undertaken to reduce Campylobacter load in live chickens (pre-harvest) and in carcasses (post-harvest). We also provide some insights into optimization of these approaches, which could potentially help improve the pre- and post-harvest practices for better control of Campylobacter.
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Affiliation(s)
- Khaled Taha-Abdelaziz
- Department of Animal and Veterinary Science, College of Agriculture, Forestry and Life Sciences, Clemson University, Clemson, SC 29634, USA
- Correspondence:
| | - Mankerat Singh
- 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
| | - Shreeya Sharma
- Department of Animal and Veterinary Science, College of Agriculture, Forestry and Life Sciences, Clemson University, Clemson, SC 29634, USA
| | - Raveendra R. Kulkarni
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27606, USA
| | - Mohammadali Alizadeh
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Alexander Yitbarek
- Department of Animal Science, McGill University, Montreal, QC H9X 3V9, Canada
| | - Yosra A. Helmy
- Department of Veterinary Science, College of Agriculture, Food, and Environment, University of Kentucky, Lexington, KY 40546, USA
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Gloanec N, Dory D, Quesne S, Béven V, Poezevara T, Keita A, Chemaly M, Guyard-Nicodème M. Impact of DNA Prime/Protein Boost Vaccination against Campylobacter jejuni on Immune Responses and Gut Microbiota in Chickens. Vaccines (Basel) 2022; 10:vaccines10060981. [PMID: 35746589 PMCID: PMC9231206 DOI: 10.3390/vaccines10060981] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/13/2022] [Accepted: 06/14/2022] [Indexed: 01/15/2023] Open
Abstract
Campylobacteriosis is reported to be the leading zoonosis in Europe, and poultry is the main reservoir of Campylobacter. Despite all the efforts made, there is still no efficient vaccine to fight this bacterium directly in poultry. Recent studies have reported interactions between the chicken immune system and gut microbiota in response to Campylobacter colonisation. The present study was designed to analyse in more depth the immune responses and caecal microbiota following vaccination with a DNA prime/protein boost flagellin-based vaccine that induces some protection in specific-pathogen-free White Leghorn chickens, as shown previously. These data may help to improve future vaccination protocols against Campylobacter in poultry. Here a vaccinated and a placebo group were challenged by C. jejuni at the age of 19 days. A partial reduction in Campylobacter loads was observed in the vaccinated group. This was accompanied by the production of specific systemic and mucosal antibodies. Transient relatively higher levels of Interleukin-10 and antimicrobial peptide avian β-defensin 10 gene expressions were observed in the vaccinated and placebo groups respectively. The analysis of caecal microbiota revealed the vaccination's impact on its structure and composition. Specifically, levels of operational taxonomic units classified as Ruminococcaceae and Bacillaceae increased on day 40.
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Affiliation(s)
- Noémie Gloanec
- GVB–Viral Genetics and Biosafety Unit, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France; (N.G.); (V.B.)
- HQPAP–Unit of Hygiene and Quality of Poultry and Pork Products, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France; (S.Q.); (T.P.); (M.C.); (M.G.-N.)
- UFR of Life Sciences Environment, University of Rennes 1, 35700 Rennes, France
| | - Daniel Dory
- GVB–Viral Genetics and Biosafety Unit, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France; (N.G.); (V.B.)
- Correspondence: ; Tel.: +33-(0)2-96-31-64-42
| | - Ségolène Quesne
- HQPAP–Unit of Hygiene and Quality of Poultry and Pork Products, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France; (S.Q.); (T.P.); (M.C.); (M.G.-N.)
| | - Véronique Béven
- GVB–Viral Genetics and Biosafety Unit, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France; (N.G.); (V.B.)
| | - Typhaine Poezevara
- HQPAP–Unit of Hygiene and Quality of Poultry and Pork Products, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France; (S.Q.); (T.P.); (M.C.); (M.G.-N.)
| | - Alassane Keita
- SELEAC–Avian Breeding and Experimental Department, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France;
| | - Marianne Chemaly
- HQPAP–Unit of Hygiene and Quality of Poultry and Pork Products, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France; (S.Q.); (T.P.); (M.C.); (M.G.-N.)
| | - Muriel Guyard-Nicodème
- HQPAP–Unit of Hygiene and Quality of Poultry and Pork Products, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), 22440 Ploufragan, France; (S.Q.); (T.P.); (M.C.); (M.G.-N.)
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The changing microbiome of poultry meat; from farm to fridge. Food Microbiol 2021; 99:103823. [PMID: 34119108 DOI: 10.1016/j.fm.2021.103823] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/24/2021] [Accepted: 04/27/2021] [Indexed: 11/20/2022]
Abstract
Chickens play host to a diverse community of microorganisms which constitute the microflora of the live bird. Factors such as diet, genetics and immune system activity affect this complex population within the bird, while external influences including weather and exposure to other animals alter the development of the microbiome. Bacteria from these settings including Campylobacter and Salmonella play an important role in the quality and safety of end-products from these birds. Further steps, including washing and chilling, within the production cycle aim to control the proliferation of these microbes as well as those which cause product spoilage. These steps impose specific selective pressures upon the microflora of the meat product. Within the next decade, it is forecast that poultry meat, particularly chicken will become the most consumed meat globally. However, as poultry meat is a frequently cited reservoir of zoonotic disease, understanding the development of its microflora is key to controlling the proliferation of important spoilage and pathogenic bacterial groups present on the bird. Whilst several excellent reviews exist detailing the microbiome of poultry during primary production, others focus on fate of important poultry pathogens such as Campylobacter and Salmonella spp. At farm and retail level, and yet others describe the evolution of spoilage microbes during spoilage. This review seeks to provide the poultry industry and research scientists unfamiliar with food technology process with a holistic overview of the key changes to the microflora of broiler chickens at each stage of the production and retail cycle.
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Cano A, Ettcheto M, Espina M, López-Machado A, Cajal Y, Rabanal F, Sánchez-López E, Camins A, García ML, Souto EB. State-of-the-art polymeric nanoparticles as promising therapeutic tools against human bacterial infections. J Nanobiotechnology 2020; 18:156. [PMID: 33129333 PMCID: PMC7603693 DOI: 10.1186/s12951-020-00714-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 10/21/2020] [Indexed: 02/06/2023] Open
Abstract
Infectious diseases kill over 17 million people a year, among which bacterial infections stand out. From all the bacterial infections, tuberculosis, diarrhoea, meningitis, pneumonia, sexual transmission diseases and nosocomial infections are the most severe bacterial infections, which affect millions of people worldwide. Moreover, the indiscriminate use of antibiotic drugs in the last decades has triggered an increasing multiple resistance towards these drugs, which represent a serious global socioeconomic and public health risk. It is estimated that 33,000 and 35,000 people die yearly in Europe and the United States, respectively, as a direct result of antimicrobial resistance. For all these reasons, there is an emerging need to find novel alternatives to overcome these issues and reduced the morbidity and mortality associated to bacterial infectious diseases. In that sense, nanotechnological approaches, especially smart polymeric nanoparticles, has wrought a revolution in this field, providing an innovative therapeutic alternative able to improve the limitations encountered in available treatments and capable to be effective by theirselves. In this review, we examine the current status of most dangerous human infections, together with an in-depth discussion of the role of nanomedicine to overcome the current disadvantages, and specifically the most recent and innovative studies involving polymeric nanoparticles against most common bacterial infections of the human body.
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Affiliation(s)
- Amanda Cano
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av Joan XXIII, 27-31, 08017, Barcelona, Spain.
- Institute of Nanoscience and Nanotechnology (IN2UB), Barcelona, Spain.
- Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), Madrid, Spain.
| | - Miren Ettcheto
- Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), Madrid, Spain
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain
- Unit of Biochemistry and Pharmacology, Faculty of Medicine and Health Sciences, University of Rovira I Virgili, Reus (Tarragona), Spain
| | - Marta Espina
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av Joan XXIII, 27-31, 08017, Barcelona, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), Barcelona, Spain
| | - Ana López-Machado
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av Joan XXIII, 27-31, 08017, Barcelona, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), Barcelona, Spain
| | - Yolanda Cajal
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av Joan XXIII, 27-31, 08017, Barcelona, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), Barcelona, Spain
| | - Francesc Rabanal
- Section of Organic Chemistry, Department of Inorganic and Organic Chemistry, Faculty of Chemistry, University of Barcelona, Barcelona, Spain
| | - Elena Sánchez-López
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av Joan XXIII, 27-31, 08017, Barcelona, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), Barcelona, Spain
- Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Antonio Camins
- Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), Madrid, Spain
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain
| | - Maria Luisa García
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av Joan XXIII, 27-31, 08017, Barcelona, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), Barcelona, Spain
- Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Eliana B Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
- CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
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Ramachandraiah K, Hong GP. Polymer Based Nanomaterials for Strategic Applications in Animal Food Value Chains. FOOD REVIEWS INTERNATIONAL 2020. [DOI: 10.1080/87559129.2020.1821212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | - Geun-Pyo Hong
- Department of Food Science and Biotechnology, Sejong University, Seoul, Korea
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Yan J, Wu X, Chen J, Chen Y, Zhang H. Harnessing the strategy of metagenomics for exploring the intestinal microecology of sable (Martes zibellina), the national first-level protected animal. AMB Express 2020; 10:169. [PMID: 32945998 PMCID: PMC7501400 DOI: 10.1186/s13568-020-01103-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 09/08/2020] [Indexed: 02/08/2023] Open
Abstract
Sable (Martes zibellina), a member of family Mustelidae, order Carnivora, is primarily distributed in the cold northern zone of Eurasia. The purpose of this study was to explore the intestinal flora of the sable by metagenomic library-based techniques. Libraries were sequenced on an Illumina HiSeq 4000 instrument. The effective sequencing data of each sample was above 6000 M, and the ratio of clean reads to raw reads was over 98%. The total ORF length was approximately 603,031, equivalent to 347.36 Mbp. We investigated gene functions with the KEGG database and identified 7140 KEGG ortholog (KO) groups comprising 129,788 genes across all of the samples. We selected a subset of genes with the highest abundances to construct cluster heat maps. From the results of the KEGG metabolic pathway annotations, we acquired information on gene functions, as represented by the categories of metabolism, environmental information processing, genetic information processing, cellular processes and organismal systems. We then investigated gene function with the CAZy database and identified functional carbohydrate hydrolases corresponding to genes in the intestinal microorganisms of sable. This finding is consistent with the fact that the sable is adapted to cold environments and requires a large amount of energy to maintain its metabolic activity. We also investigated gene functions with the eggNOG database; the main functions of genes included gene duplication, recombination and repair, transport and metabolism of amino acids, and transport and metabolism of carbohydrates. In this study, we attempted to identify the complex structure of the microbial population of sable based on metagenomic sequencing methods, which use whole metagenomic data, and to map the obtained sequences to known genes or pathways in existing databases, such as CAZy, KEGG, and eggNOG. We then explored the genetic composition and functional diversity of the microbial community based on the mapped functional categories.
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Lu T, Marmion M, Ferone M, Wall P, Scannell AGM. On farm interventions to minimise Campylobacter spp. contamination in chicken. Br Poult Sci 2020; 62:53-67. [PMID: 32835499 DOI: 10.1080/00071668.2020.1813253] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
1. This review explores current and proposed on-farm interventions and assess the potential of these interventions against Campylobacter spp. 2. Interventions such as vaccination, feed/water-additives and, most importantly, consistent biosecurity, exhibit potential for the effective control of this pathogen and its dissemination within the food chain. 3. Due to the extensive diversity in the Campylobacter spp. genome and surface-expressed proteins, vaccination of poultry is not yet regarded as a completely effective strategy. 4. The acidification of drinking water through the addition of organic acids has been reported to decrease the risk of Campylobacter spp. colonisation in broiler flocks. Whilst this treatment alone will not completely protect birds, use of water acidification in combination with in-feed measures to further reduce the level of Campylobacter spp. colonisation in poultry may be an option meriting further exploration. 5. The use of varied types of feed supplements to reduce the intestinal population and shedding rate of Campylobacter spp. in poultry is an area of growing interest in the poultry industry. Such supplements include pro - and pre-biotics, organic acids, bacteriocins and bacteriophage, which may be added to feed and water. 6. From the literature, it is clear that a distinct, albeit not unexpected, difference between the performance of in-feed interventions exists when examined in vitro compared to those determined in in vivo studies. It is much more likely that pooling some of the discussed approaches in the in-feed tool kit will provide an answer. 7. Whilst on-farm biosecurity is essential to maintain a healthy flock and reduce disease transmission, even the most stringent biosecurity measures may not have sufficient, consistent and predictable effects in controlling Campylobacter spp. Furthermore, the combination of varied dietary approaches and improved biosecurity measures may synergistically improve control.
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Affiliation(s)
- T Lu
- UCD School of Public Health, Physiotherapy and Sports Science, University College Dublin, National University of Ireland , Dublin, Ireland.,UCD Centre for Food Safety, University College Dublin, National University of Ireland , Dublin, Ireland
| | - M Marmion
- UCD School of Agriculture and Food Science, Agricultural & Food Science Centre, University College Dublin, National University of Ireland , Dublin, Ireland
| | - M Ferone
- UCD School of Agriculture and Food Science, Agricultural & Food Science Centre, University College Dublin, National University of Ireland , Dublin, Ireland
| | - P Wall
- UCD School of Public Health, Physiotherapy and Sports Science, University College Dublin, National University of Ireland , Dublin, Ireland.,UCD Centre for Food Safety, University College Dublin, National University of Ireland , Dublin, Ireland.,UCD Institute of Food and Health O'Brien Science Centre South, University College Dublin, National University of Ireland , Dublin, Ireland
| | - A G M Scannell
- UCD Centre for Food Safety, University College Dublin, National University of Ireland , Dublin, Ireland.,UCD School of Agriculture and Food Science, Agricultural & Food Science Centre, University College Dublin, National University of Ireland , Dublin, Ireland.,UCD Institute of Food and Health O'Brien Science Centre South, University College Dublin, National University of Ireland , Dublin, Ireland
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12
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Ma J, Liu F, Sheu WC, Meng Z, Xie Y, Xu H, Li M, Chen AT, Liu J, Bao Y, Zhang X, Zhang S, Zhang L, Zou Z, Wu H, Wang H, Zhu Y, Zhou J. Copresentation of Tumor Antigens and Costimulatory Molecules via Biomimetic Nanoparticles for Effective Cancer Immunotherapy. NANO LETTERS 2020; 20:4084-4094. [PMID: 32379462 DOI: 10.1021/acs.nanolett.9b05171] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanoparticle (NP)-based cancer immunotherapy has been extensively explored. However, the efficacy of existing strategies is often limited by the lack of effective tumor-specific antigens or the inability to present costimulatory signal or both. Here, we report a novel approach to overcoming these limitations through surface coating with dendritic-tumor fusion cell membranes, which present whole repertories of tumor-associated antigens in the presence of costimulatory molecules. Because antigen-presenting and costimulatory molecules are displayed on their surface, these NPs can efficiently penetrate immune organs and activate T cells. We show that these NPs can be utilized to prevent tumor development and regress established tumors, including tumors in the brain. We demonstrate that encapsulation of immune adjuvants further improves their efficacy. Due to their significant efficacy, the whole tumor antigen-presenting costimulatory NPs have the potential to be translated into clinical applications for treatment of various cancers.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Zhiyong Zou
- Department of Neurosurgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | | | - Haijun Wang
- Department of Neurosurgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Yuwen Zhu
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045, United States
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13
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Taha-Abdelaziz K, Astill J, Shojadoost B, Borrelli S, A Monteiro M, Sharif S. Campylobacter-derived ligands induce cytokine and chemokine expression in chicken macrophages and cecal tonsil mononuclear cells. Vet Microbiol 2020; 246:108732. [PMID: 32605752 DOI: 10.1016/j.vetmic.2020.108732] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 04/11/2020] [Accepted: 05/20/2020] [Indexed: 12/13/2022]
Abstract
Campylobacter jejuni colonizes the chicken gut at a high density without causing disease. However, consumption of poultry products contaminated with this bacterium causes gastroenteritis in humans. Therefore, it is critically important to reduce the Campylobacter burden in poultry products to prevent transmission to humans. Evidence indicates that enhancing intestinal mucosal immune responses is of paramount importance for preventing or reducing Campylobacter colonization in chickens. In view of this, the present study was undertaken to evaluate host responses to different C. jejuni-derived ligands, including lipooligosaccharide (LOS), outer membrane proteins (OMPs), and genomic DNA, with the ultimate goal of identifying a ligand with potent immunostimulatory capacity to serve as a mucosal vaccine adjuvant against enteric infections in chickens. The results revealed that C. jejuni pathogen-associated molecular patterns (PAMPs) varied in their ability to induce the expression of cytokines and chemokines in chicken macrophages and cecal tonsil mononuclear cells and nitric oxide production in macrophages. In addition, C. jejuni OMPs demonstrated superior activity over LOS and DNA ligands in eliciting cytokine expression associated with T helper (Th)1 and Th2 responses (interferon [IFN]-γ and interleukin [IL]-13, respectively), in addition to expression of pro-inflammatory cytokines (IL-1β), chemokine (CXCLi2), and regulatory cytokines (IL-10 and TGFβ1/4) in cecal tonsil cells. Importantly, in addition to their ability to induce innate responses, OMPs could also function as antigens to elicit C. jejuni-specific antibody responses and thereby confer dual protection against C. jejuni infection. Further studies are required to assess the protective efficacy of C. jejuni OMPs against C. jejuni infection in chickens.
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Affiliation(s)
- Khaled Taha-Abdelaziz
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada; Pathology Department, Faculty of Veterinary Medicine, Beni-Suef University, Al Shamlah, 62511, Beni-Suef, Egypt
| | - Jake Astill
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Bahram Shojadoost
- 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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14
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Alkie TN, Yitbarek A, Hodgins DC, Kulkarni RR, Taha-Abdelaziz K, Sharif S. Development of innate immunity in chicken embryos and newly hatched chicks: a disease control perspective. Avian Pathol 2019; 48:288-310. [PMID: 31063007 DOI: 10.1080/03079457.2019.1607966] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Newly hatched chickens are confronted by a wide array of pathogenic microbes because their adaptive immune defences have limited capabilities to control these pathogens. In such circumstances, and within this age group, innate responses provide a degree of protection. Moreover, as the adaptive immune system is relatively naïve to foreign antigens, synergy with innate defences is critical. This review presents knowledge on the ontogeny of innate immunity in chickens pre-hatch and early post-hatch and provides insights into possible interventions to modulate innate responses early in the life of the bird. As in other vertebrate species, the chicken innate immune system which include cellular mediators, cytokine and chemokine repertoires and molecules involved in antigen detection, develop early in life. Comparison of innate immune systems in newly hatched chickens and mature birds has revealed differences in magnitude and quality, but responses in younger chickens can be boosted using innate immune system modulators. Functional expression of pattern recognition receptors and several defence molecules by innate immune system cells of embryos and newly hatched chicks suggests that innate responses can be modulated at this stage of development to combat pathogens. Improved understanding of innate immune system ontogeny and functionality in chickens is critical for the implementation of sound and safe interventions to provide long-term protection against pathogens. Next-generation tools for studying genetic and epigenetic regulation of genes, functional metagenomics and gene knockouts can be used in the future to explore and dissect the contributions of signalling pathways of innate immunity and to devise more efficacious disease control strategies.
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Affiliation(s)
- Tamiru N Alkie
- a Department of Pathobiology, Ontario Veterinary College , University of Guelph , Guelph , ON , Canada
| | - Alexander Yitbarek
- a Department of Pathobiology, Ontario Veterinary College , University of Guelph , Guelph , ON , Canada
| | - Douglas C Hodgins
- a Department of Pathobiology, Ontario Veterinary College , University of Guelph , Guelph , ON , Canada
| | - Raveendra R Kulkarni
- a Department of Pathobiology, Ontario Veterinary College , University of Guelph , Guelph , ON , Canada
| | - Khaled Taha-Abdelaziz
- a Department of Pathobiology, Ontario Veterinary College , University of Guelph , Guelph , ON , Canada.,b Pathology Department, Faculty of Veterinary Medicine , Beni-Suef University , Beni-Suef , Egypt
| | - Shayan Sharif
- a Department of Pathobiology, Ontario Veterinary College , University of Guelph , Guelph , ON , Canada
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15
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Lu T, Marmion M, Ferone M, Wall P, Scannell AGM. Processing and retail strategies to minimizeCampylobactercontamination in retail chicken. J FOOD PROCESS PRES 2019. [DOI: 10.1111/jfpp.14251] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ting Lu
- School of Public Health, Physiotherapy and Sports Science University College Dublin, National University of Ireland Dublin Ireland
- Center for Food Safety University College Dublin, National University of Ireland Dublin Ireland
| | - Matthew Marmion
- School of Agriculture and Food Science, Agricultural & Food Science Centre University College Dublin, National University of Ireland Dublin Ireland
| | - Mariateresa Ferone
- School of Agriculture and Food Science, Agricultural & Food Science Centre University College Dublin, National University of Ireland Dublin Ireland
| | - Patrick Wall
- School of Public Health, Physiotherapy and Sports Science University College Dublin, National University of Ireland Dublin Ireland
- Center for Food Safety University College Dublin, National University of Ireland Dublin Ireland
- Institute of Food and Health, O'Brien Science Centre South University College Dublin, National University of Ireland Dublin Ireland
| | - Amalia G. M. Scannell
- Center for Food Safety University College Dublin, National University of Ireland Dublin Ireland
- School of Agriculture and Food Science, Agricultural & Food Science Centre University College Dublin, National University of Ireland Dublin Ireland
- Institute of Food and Health, O'Brien Science Centre South University College Dublin, National University of Ireland Dublin Ireland
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