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Zheng X, Xu S, Wang Z, Tao X, Liu Y, Dai L, Li Y, Zhang W. Sifting through the core-genome to identify putative cross-protective antigens against Riemerella anatipestifer. Appl Microbiol Biotechnol 2023; 107:3085-3098. [PMID: 36941438 DOI: 10.1007/s00253-023-12479-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 02/27/2023] [Accepted: 03/06/2023] [Indexed: 03/23/2023]
Abstract
Infectious serositis of ducks, caused by Riemerella anatipestifer, is one of the main infectious diseases that harm commercial ducks. Whole-strain-based vaccines with no or few cross-protection were observed between different serotypes of R. anatipestifer, and so far, control of infection is hampered by a lack of effective vaccines, especially subunit vaccines with cross-protection. Since the concept of reverse vaccinology was introduced, it has been widely used to screen for protective antigens in important pathogens. In this study, pan-genome binding reverse vaccinology, an emerging approach to vaccine candidate screening, was used to screen for cross-protective antigens against R. anatipestifer. Thirty proteins were identified from the core-genome as potential cross-protective antigens. Three of these proteins were recombinantly expressed, and their immunoreactivity with five antisera (anti-serotypes 1, 2, 6, 10, and 11) was demonstrated by Western blotting. Our study established a method for high-throughput screening of cross-protective antigens against R. anatipestifer in silico, which will lay the foundation for the development of a cross-protective subunit vaccine controlling R. anatipestifer infection. KEY POINTS: • Pan-genome binding reverse vaccine approach was first established in R. anatipestifer to screen for subunit vaccine candidates. • Thirty potential cross-protective antigens against R. anatipestifer were identified by this method. • The reliability of the method was verified preliminarily by the results of Western blotting of three of these potential antigens.
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Affiliation(s)
- Xiangkuan Zheng
- The Sanya Institute of Nanjing Agriculture University, Sanya, 572024, China
- Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing, 210095, China
- OIE Reference Lab for Swine Streptococcosis, Nanjing, 210095, China
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Sixiang Xu
- The Sanya Institute of Nanjing Agriculture University, Sanya, 572024, China
- Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing, 210095, China
- OIE Reference Lab for Swine Streptococcosis, Nanjing, 210095, China
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhuohao Wang
- The Sanya Institute of Nanjing Agriculture University, Sanya, 572024, China
- Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing, 210095, China
- OIE Reference Lab for Swine Streptococcosis, Nanjing, 210095, China
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xingyu Tao
- The Sanya Institute of Nanjing Agriculture University, Sanya, 572024, China
- Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing, 210095, China
- OIE Reference Lab for Swine Streptococcosis, Nanjing, 210095, China
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yuqing Liu
- Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, Shandong Province, 250100, China
| | - Lei Dai
- Hainan Animal Disease Prevention and Control Center, 16 Xingdan Road, Haikou, 571100, China
| | - Yubao Li
- Agricultural Science and Engineering School, Liaocheng University, Liaocheng, China.
| | - Wei Zhang
- The Sanya Institute of Nanjing Agriculture University, Sanya, 572024, China.
- Key Lab of Animal Bacteriology, Ministry of Agriculture, Nanjing, 210095, China.
- OIE Reference Lab for Swine Streptococcosis, Nanjing, 210095, China.
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China.
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2
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Sawicka-Durkalec A, Tomczyk G, Gerilovych I, Kursa O. Molecular Detection and Phylogenetic Analysis of Riemerella anatipestifer in Poultry and Wild Geese in Poland. Pathogens 2023; 12:pathogens12020256. [PMID: 36839527 PMCID: PMC9965878 DOI: 10.3390/pathogens12020256] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/24/2023] [Accepted: 02/03/2023] [Indexed: 02/09/2023] Open
Abstract
Riemerella anatipestifer (RA) is one of the most relevant bacterial pathogens of commercial waterfowl from clinical and economic points of view. Our study aimed to evaluate the prevalence of RA infection in different types of commercial poultry in Poland and verify the potential role of wild geese as vectors of this pathogen. We tested a total of 126 poultry flocks, including geese (N = 20), ducks (N = 42), turkeys (N = 64) and 19 wild geese, including greater white-fronted geese (N = 9), greylag geese (N = 5) and Taiga bean geese (N = 5). Tracheal swabs were examined for RA using a PCR targeting a conserved region of the 16S rRNA gene. Selected PCR products were sequenced to perform the phylogenetic analysis. Among the commercial poultry, the highest RA prevalence was found in flocks of ducks (35.7%) and geese (30.0%), whereas the lowest one was found in turkeys (3.2%). Most tested wild geese (94.7%) were RA positive. The phylogenetic analysis showed relatively low genetic diversity of the sequences analyzed, which gathered in two clusters of the phylogenetic tree, and the minimum nucleotide identity was 98.6%. Our results would support the contention that RA isolates from commercial poultry circulate in wild bird populations but are not transmitted back to poultry.
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Affiliation(s)
- Anna Sawicka-Durkalec
- Department of Poultry Diseases, National Veterinary Research Institute, 24-100 Pulawy, Poland
- Correspondence: ; Tel.: +48-81-889-3013
| | - Grzegorz Tomczyk
- Department of Poultry Diseases, National Veterinary Research Institute, 24-100 Pulawy, Poland
| | - Iryna Gerilovych
- Department of Poultry Diseases, National Veterinary Research Institute, 24-100 Pulawy, Poland
- National Scientific Center “Institute of Experimental and Clinical Veterinary Medicine”, 83 Pushkinska, 61023 Kharkov, Ukraine
| | - Olimpia Kursa
- Department of Poultry Diseases, National Veterinary Research Institute, 24-100 Pulawy, Poland
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3
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Flores RA, Cammayo PLT, Nguyen BT, Fernandez-Colorado CP, Kim S, Kim WH, Min W. Duck Interleukin-22: Identification and Expression Analysis in Riemerella anatipestifer Infection. J Immunol Res 2021; 2021:3862492. [PMID: 34805416 PMCID: PMC8601822 DOI: 10.1155/2021/3862492] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/07/2021] [Indexed: 01/05/2023] Open
Abstract
Riemerella anatipestifer is one of the most devastating pathogens affecting the global duck farms. Infection is involved in secretion of proinflammatory cytokines, including interleukin- (IL-) 17A. During the immune response to infection, IL-22 and IL-17A are often produced concurrently and at high levels in inflamed tissues. Little is known about duck IL-22 (duIL-22) during R. anatipestifer infection. We describe the characterization of duIL-22 and its mRNA expression analysis in splenic lymphocytes and macrophages treated with heat-killed R. anatipestifer and in the spleens and livers of R. anatipestifer-infected ducks. Full-length cDNA of duIL-22 encoded 197 amino acids. The deduced amino acid sequence of duIL-22 shared a 30.4-40.5% similarity with piscine counterparts, 57.4-60.1% with mammalian homologs, and 93.4% similarity to the chicken. Duck IL-22 mRNA expression level was relatively high in the skin of normal ducks. It was increased in mitogen-stimulated splenic lymphocytes and in killed R. anatipestifer-activated splenic lymphocytes and macrophages. Compared with healthy ducks, IL-22 transcript expression was significantly upregulated in the livers and spleens on days 1 and 4 postinfection, but not on day 7. IL-17A was significantly increased in the spleens only on day 4 postinfection and in the livers at all time points. When splenic lymphocytes were stimulated with heat-killed R. anatipestifer, CD4+ cells predominantly produced IL-22 while IL-17A was expressed both by CD4+ and CD4- cells. These results suggested that IL-22 and IL-17A are likely expressed in different cell types during R. anatipestifer infection.
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Affiliation(s)
- Rochelle A. Flores
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Paula Leona T. Cammayo
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Binh T. Nguyen
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Cherry P. Fernandez-Colorado
- Department of Veterinary Paraclinical Sciences, College of Veterinary Medicine, University of the Philippines Los Baños College, Laguna 4031, Philippines
| | - Suk Kim
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Woo H. Kim
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Wongi Min
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
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4
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Shousha A, Awad A, Younis G. Molecular Characterization, Virulence and Antimicrobial Susceptibility Testing of Riemerella anatipestifer Isolated from Ducklings. Biocontrol Sci 2021; 26:181-186. [PMID: 34556621 DOI: 10.4265/bio.26.181] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
This pilot study aimed to characterize Riemerella anatipestifer from ducklings, testing their susceptibility to antimicrobial agents and to detect their virulence markers. Seven R. anatipestifer isolates with 11.67% infection rate were identified out of sixty freshly dead ducklings and confirmed by PCR assay targeting gyrB gene. The gyrB gene sequences of R. anatipestifer isolates were 100% identical to each other and also showed 100% sequence similarity to the published gyrB genes. Four virulence genes namely ompA, prtC, hagA, and sspA were identified in all isolates except sspA was detected in 5 isolates. The antibiogram revealed higher sensitive to imipenem, amikacin, and rifampin, while, a remarkably high resistance was displayed against ampicillin, penicillin, cefipime, trimethoprim/sulfamethoxazole, gentamicin, ceftazidime, streptomycin and cefoperazone. Proper and rapid identification of R. anatipestifer with detection of their antimicrobial susceptibility and its virulence potential is essential for understanding the epidemiology of R. anatipestifer and to apply the effective control strategies.
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Affiliation(s)
- Amany Shousha
- Bacteriology, Mycology and Immunology Department, Faculty of Veterinary Medicine, Mansoura University
| | - Amal Awad
- Bacteriology, Mycology and Immunology Department, Faculty of Veterinary Medicine, Mansoura University
| | - Gamal Younis
- Bacteriology, Mycology and Immunology Department, Faculty of Veterinary Medicine, Mansoura University
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5
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Patil SS, Shinduja R, Suresh KP, Phukan S, Kumar S, Sengupta PP, G Amachawadi R, Raut A, Roy P, Syed A, Marraiki N, Elgorban AM, Al-Harthi HF, Bahkali AH, Shivamallu C, Shiva Prasad K. A systematic review and meta-analysis on the prevalence of infectious diseases of Duck: A world perspective. Saudi J Biol Sci 2021; 28:5131-5144. [PMID: 34466091 PMCID: PMC8381006 DOI: 10.1016/j.sjbs.2021.05.034] [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: 12/20/2020] [Revised: 05/14/2021] [Accepted: 05/14/2021] [Indexed: 11/29/2022] Open
Abstract
The Indian poultry industry is one of the fast-growing sectors of which duck farming plays an important role. Duck population in India is 33.51 million that is concentrated towards north-east and southern parts of the country who rears mainly for eggs and meat. Duck diseases are of great concern as they badly affect the financial status of the small, landless farmers. Databases such as Google Scholar, PubMed, J gate were used to search articles between 2000 and 2019 that showed the prevalence of viral, bacterial, and parasitic duck diseases. R open source software was used to derive forest plots by statistical analysis. Pooled prevalence estimates of duck diseases worldwide was found to be 20% (95%-CI:15–26). Also, continent-wise analysis of all duck diseases has revealed highest prevalence in North America, followed by Asia, Africa, Europe,Oceania and South America. This prevalence of data would be helpful to the policymakers to develop appropriate intervention strategies to prevent and control diseases in their respective locations.
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Affiliation(s)
- Sharanagouda S Patil
- ICAR-National Institute of Veterinary Epidem iology and Disease Informatics (NIVEDI), Yelahanka, Bengaluru, India
| | - Rajamani Shinduja
- ICAR-National Institute of Veterinary Epidem iology and Disease Informatics (NIVEDI), Yelahanka, Bengaluru, India
| | | | - Sulekha Phukan
- Department of Parasitology, College of Veterinary Science, Khanapara, Guwahati, Assam, India
| | - Sachin Kumar
- Department of Biosciences and Bioengineering, IIT, Guwahati, Assam, India
| | - Pinaki Prasad Sengupta
- ICAR-National Institute of Veterinary Epidem iology and Disease Informatics (NIVEDI), Yelahanka, Bengaluru, India
| | - Raghavendra G Amachawadi
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS, USA
| | - Ashwin Raut
- ICAR-National Institute of High Security Animal Diseases (NIHSAD), Bhopal, Madhya Pradesh, India
| | - Parimal Roy
- ICAR-National Institute of Veterinary Epidem iology and Disease Informatics (NIVEDI), Yelahanka, Bengaluru, India
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Najat Marraiki
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abdallah M Elgorban
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Helal F Al-Harthi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Ali H Bahkali
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Chandan Shivamallu
- Department of Biotechnology and Bioinformatics, School of Life Sciences, JSS Academy of Higher Education and Research (JSS AHER), Mysuru, Karnataka 570 015, India
| | - Kollur Shiva Prasad
- Department of Sciences, Amrita School of Arts and Sciences, Amrita Vishwa Vidyapeetham, Mysuru Campus, Mysuru, Karnataka 570 026, India
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6
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Fernandez-Colorado CP, Cammayo PLT, Flores RA, Nguyen BT, Kim WH, Kim S, Lillehoj HS, Min W. Anti-inflammatory activity of diindolylmethane alleviates Riemerella anatipestifer infection in ducks. PLoS One 2020; 15:e0242198. [PMID: 33175869 PMCID: PMC7657562 DOI: 10.1371/journal.pone.0242198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 10/28/2020] [Indexed: 11/18/2022] Open
Abstract
3,3’-Diindolylmethane (DIM) is found in cruciferous vegetables and is used to treat various inflammatory diseases because of its potential anti-inflammatory effects. To investigate effects of DIM in Riemerella anatipestifer-infected ducks which induce upregulation of inflammatory cytokines, ducks were treated orally with DIM at dose of 200 mg/kg/day and infected the following day with R. anatipestifer. Infected and DIM-treated ducks exhibited 14% increased survival rate and significantly decreased bacterial burden compared to infected untreated ducks. Next, the effect on the expression level of inflammatory cytokines (interleukin [IL]-17A, IL-17F, IL-6, IL-1β) of both in vitro and in vivo DIM-treated groups was monitored by quantitative reverse-transcription PCR (qRT-PCR). Generally, the expression levels of the cytokines were significantly reduced in DIM-treated splenic lymphocytes stimulated with killed R. anatipestifer compared to stimulated untreated splenic lymphocytes. Similarly, the expression levels of the cytokines were significantly reduced in the spleens and livers of DIM-treated R. anatipestifer–infected ducks compared to infected untreated ducks. This study demonstrated the ameliorative effects of DIM in ducks infected with R. anatipestifer. Thus, DIM can potentially be used to prevent and/or treat R. anatipestifer infection via inhibition of inflammatory cytokine expression.
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Affiliation(s)
- Cherry P. Fernandez-Colorado
- Department of Veterinary Paraclinical Sciences, College of Veterinary Medicine, University of the Philippines Los Baños, College, Laguna, Philippines
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Paula Leona T. Cammayo
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Rochelle A. Flores
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Binh T. Nguyen
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Woo H. Kim
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, United States of America
| | - Suk Kim
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Hyun S. Lillehoj
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, United States of America
| | - Wongi Min
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju, Republic of Korea
- * E-mail:
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7
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Yang D, Mai K, Zhou Q, Zhu Y, Xing J, Luo C, Liu S, Zhou Q, Huang W, Luo J, Liu J. The protective efficacy of specific egg yolk immunoglobulin Y(IgY) against Riemerella Anatipestifer infections. Vet Microbiol 2020; 243:108642. [PMID: 32273021 DOI: 10.1016/j.vetmic.2020.108642] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 03/03/2020] [Accepted: 03/11/2020] [Indexed: 10/24/2022]
Abstract
Riemerella anatipestifer (RA) is the significant pathogen of septicemia and duck infectious serositis, diseases which can result in high mortality for ducklings. However, these diseases are difficult to treat because of the bacteria's broad resistance to multiple drugs. The purpose of this study was to produce a specific egg yolk immunoglobulin Y (IgY) targeted to RA, and to evaluate the protective efficacy of this IgY against RA infection. An RA-inactivated vaccine was produced via centrifugation and formalin treatment, using the most predominant serotype 2 wild-type strains in terms of worldwide prevalence. Anti-RA IgY was produced by immunizing Beijing Red No.1 hens with the inactivated vaccine. Enzyme-linked immunosorbent assays showed that the titer levels of anti-RA IgY antibodies increased significantly after exposure. Specific IgY isolated and purified from yolks effectively inhibited the growth of RA in the antibacterial activity assay, which revealed an 80 % reduction of bacteria populations. Animal experiments showed that duckling survival rates were able to reach up to 100 % after the ducklings were treated with 10 mg intramuscular injections of anti-RA IgY from 1 to 12 h after infection. However, the survival rates of ducklings treated with 30 mg of nonspecific IgY at 1 h after infection were 0%. Additionally, ducklings injected once with anti-RA IgY received complete protection in the first week, but the efficacy of this protection almost entirely disappeared after two weeks. The results suggested that specific anti-RA IgY has the potential to improve the degree of protection and responsiveness of ducklings to RA infections and provide them with passive immunity to RA. With further study, this is expected to become a new method for controlling RA infections.
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Affiliation(s)
- Dehong Yang
- WENS Foodstuff Group Co., Ltd. Research Institute, Xinxing, Guangdong, China
| | - Kaijie Mai
- WENS Foodstuff Group Co., Ltd. Research Institute, Xinxing, Guangdong, China
| | - Qi Zhou
- WENS Foodstuff Group Co., Ltd. Research Institute, Xinxing, Guangdong, China
| | - Yuanjun Zhu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Juanjuan Xing
- College of Animal Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei, China
| | - Cuifen Luo
- WENS Foodstuff Group Co., Ltd. Research Institute, Xinxing, Guangdong, China
| | - Shiqi Liu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Qingfeng Zhou
- WENS Foodstuff Group Co., Ltd. Research Institute, Xinxing, Guangdong, China
| | - Wei Huang
- College of Bioscience and Bioengineering, Southwest University, Chongqing, China
| | - Junrong Luo
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Junfa Liu
- WENS Foodstuff Group Co., Ltd. Research Institute, Xinxing, Guangdong, China.
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8
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Zhu D, Yang Z, Xu J, Wang M, Jia R, Chen S, Liu M, Zhao X, Yang Q, Wu Y, Zhang S, Liu Y, Zhang L, Yu Y, Chen X, Cheng A. Pan-genome analysis of Riemerella anatipestifer reveals its genomic diversity and acquired antibiotic resistance associated with genomic islands. Funct Integr Genomics 2019; 20:307-320. [PMID: 31654228 DOI: 10.1007/s10142-019-00715-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 07/20/2019] [Accepted: 09/09/2019] [Indexed: 01/09/2023]
Abstract
Riemerella anatipestifer is a gram-negative bacterium that leads to severe contagious septicemia in ducks, turkeys, chickens, and wild waterfowl. Here, a pan-genome with 32 R. anatipestifer genomes is re-established, and the mathematical model is calculated to evaluate the expansion of R. anatipestifer genomes, which were determined to be open. Average nucleotide identity (ANI) and phylogenetic analysis preliminarily clarify intraspecies variation and distance. Comparative genomic analysis of R. anatipestifer found that horizontal gene transfer events, which provide an expressway for the recruitment of novel functionalities and facilitate genetic diversity in microbial genomes, play a key role in the process of acquiring and transmitting antibiotic-resistance genes in R. anatipestifer. Furthermore, a new antibiotic-resistance gene cluster was identified in the same loci in 14 genomes. The uneven distribution of virulence factors was also confirmed by our results. Our study suggests that the ability to acquire foreign genes (such as antibiotic-resistance genes) increases the adaptability of R. anatipestifer, and the virulence genes with little mobility are highly conserved in R. anatipestifer.
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Affiliation(s)
- Dekang Zhu
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, China
| | - Zhishuang Yang
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, China
| | - Jinge Xu
- Guizhou Animal Husbandry and Veterinary Research Institute, Guiyang, Guizhou, China
| | - Mingshu Wang
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Renyong Jia
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Shun Chen
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Mafeng Liu
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xinxin Zhao
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Qiao Yang
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Ying Wu
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Shaqiu Zhang
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yunya Liu
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Ling Zhang
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yanling Yu
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xiaoyue Chen
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, China
| | - Anchun Cheng
- Research Center of Avian Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China. .,Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, China. .,Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, China.
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9
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Yang S, Dong W, Li G, Zhao Z, Song M, Huang Z, Fu J, Jia F, Lin S. A recombinant vaccine of Riemerella anatipestifer OmpA fused with duck IgY Fc and Schisandra chinensis polysaccharide adjuvant enhance protective immune response. Microb Pathog 2019; 136:103707. [PMID: 31491549 DOI: 10.1016/j.micpath.2019.103707] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 08/12/2019] [Accepted: 09/02/2019] [Indexed: 01/02/2023]
Abstract
Riemerella anatipestifer (R. anatipestifer) causes septicemia and infectious serositis in domestic ducks, leading to high mortality and great economic losses worldwide. Vaccination is currently considered the best strategy to prevent R. anatipestifer infection in ducklings. In this study, we fused the duck IgY Fc gene to the outer membrane protein A (ompA) of R. anatipestifer. The eukaryotic expression plasmid carrying the fusion gene was transformed into Pichia pastoris (P. pastoris) to express the recombinant ompA and ompA-Fc proteins. Then, the effects of fused Fc on the vitality and antigen processing efficiency of duck peritoneal macrophages (PMø) were evaluated in vitro, whereas their immunogenicity was evaluated in vivo. Furthermore, Schisandra chinensis polysaccharide (SCP) was used to evaluate its immune-conditioning effects on the activation of PMø. SCP was also used as adjuvant to investigate immunomodulation on immunoresponses induced by the fused ompA-Fc in ducklings. The conventional Freund's incomplete adjuvant served as the control of SCP. Notably, ompA-Fc promoted phagocytosis of PMø and significantly increased serum antibody titers, CD4+ and CD8+ T-lymphocyte counts, lymphocyte transformation rate, and serum levels of IL-2 and IL-4. In addition, ducklings injected with the ompA-Fc vaccine exhibited considerably greater resistance to the R. anatipestifer challenge than those that received vaccines based on standalone ompA. Of note, SCP was demonstrated to boost the secretion of nitric oxide (NO), IL-1β, IL-6, TNF-α, and IFN-β by duck macrophages. In addition, the supplementation of SCP adjuvant to the ompA-Fc vaccines led to the further enhancement of immune response and vaccine protection. The dose of 200 μg/mL showed the most pronounced effects. This study provided valuable insights into protective strategies against R. anatipestifer infection.
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Affiliation(s)
- Shifa Yang
- Institute of Poultry Science, Shandong Academy of Agricultural Science, Shandong Provincial Key Laboratory of Poultry Diseases Diagnosis and Immunology, Poultry Breeding Engineering Technology Center of Shandong Province, Jinan, 250023, Shandong, PR China.
| | - Wenwen Dong
- Institute of Poultry Science, Shandong Academy of Agricultural Science, Shandong Provincial Key Laboratory of Poultry Diseases Diagnosis and Immunology, Poultry Breeding Engineering Technology Center of Shandong Province, Jinan, 250023, Shandong, PR China.
| | - Guiming Li
- Institute of Poultry Science, Shandong Academy of Agricultural Science, Shandong Provincial Key Laboratory of Poultry Diseases Diagnosis and Immunology, Poultry Breeding Engineering Technology Center of Shandong Province, Jinan, 250023, Shandong, PR China.
| | - Zengcheng Zhao
- Institute of Poultry Science, Shandong Academy of Agricultural Science, Shandong Provincial Key Laboratory of Poultry Diseases Diagnosis and Immunology, Poultry Breeding Engineering Technology Center of Shandong Province, Jinan, 250023, Shandong, PR China.
| | - Minxun Song
- Institute of Poultry Science, Shandong Academy of Agricultural Science, Shandong Provincial Key Laboratory of Poultry Diseases Diagnosis and Immunology, Poultry Breeding Engineering Technology Center of Shandong Province, Jinan, 250023, Shandong, PR China.
| | - Zhongli Huang
- Institute of Poultry Science, Shandong Academy of Agricultural Science, Shandong Provincial Key Laboratory of Poultry Diseases Diagnosis and Immunology, Poultry Breeding Engineering Technology Center of Shandong Province, Jinan, 250023, Shandong, PR China.
| | - Jian Fu
- Institute of Poultry Science, Shandong Academy of Agricultural Science, Shandong Provincial Key Laboratory of Poultry Diseases Diagnosis and Immunology, Poultry Breeding Engineering Technology Center of Shandong Province, Jinan, 250023, Shandong, PR China.
| | - Fengjuan Jia
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing Technology of Shandong Province, Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture, Jinan, 250100, Shandong, PR China.
| | - Shuqian Lin
- Institute of Poultry Science, Shandong Academy of Agricultural Science, Shandong Provincial Key Laboratory of Poultry Diseases Diagnosis and Immunology, Poultry Breeding Engineering Technology Center of Shandong Province, Jinan, 250023, Shandong, PR China.
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Epidemiology and Antibiogram of Riemerella Anatipestifer Isolated from Waterfowl Slaughterhouses in Taiwan. J Vet Res 2019; 63:79-86. [PMID: 30989138 PMCID: PMC6458550 DOI: 10.2478/jvetres-2019-0003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 01/11/2019] [Indexed: 11/20/2022] Open
Abstract
Introduction Laryngeal swab samples collected from three waterfowl slaughterhouses in central Taiwan were cultured and suspected isolates of Riemerella anatipestifer were identified by API 20NE and 16S rDNA PCR. Material and Methods Serum agglutination was used for serotyping, and antimicrobial susceptibility was tested. Results Seventy-six R. anatipestifer isolates were detected, and the prevalences in the ducks and geese were 12.3% (46/375) and 8.0% (30/375), respectively. The positive isolation rates were 65.6% for all arriving waterfowl, 76.0% for birds in the holding area, 1.6% for defeathered carcasses, but zero for degummed carcasses. A PCR examination detected R. anatipestifer in the slaughtering area frequently. Serotype B was dominant in both duck (34.8%) and goose (46.7%) isolates, but the wide serotype distribution may very well impede vaccination development. All isolates were resistant to colistin, and 79.7% were resistant to more than three common antibiotics. Conclusion The results proved that most ducks had encountered antibiotic-resistant R. anatipestifer in rearing, which suggests that the bacterium circulates in asymptomatic waterfowl. It is worth noting that most waterfowl farms were found to harbour R. anatipestifer, and contaminated slaughterhouses are a major risk factor in its spread. Effective prevention and containment measures should be established there to interrupt the transmission chain of R. anatipestifer.
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11
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Sane and sound: a serologic and molecular survey for selected infectious agents in neozootic Egyptian geese (Alopochen aegyptiacus) in Germany. EUR J WILDLIFE RES 2018. [DOI: 10.1007/s10344-018-1231-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Immunogenicity and safety of a live Riemerella anatipestifer vaccine and the contribution of IgA to protective efficacy in Pekin ducks. Vet Microbiol 2018; 222:132-138. [PMID: 30037633 DOI: 10.1016/j.vetmic.2018.07.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 07/12/2018] [Accepted: 07/16/2018] [Indexed: 12/19/2022]
Abstract
Riemerella anatipestifer (RA) infections cause major economic losses in the duck industry. In this study, we developed an RA vaccine to control virulent serotype 1 and 2 RA, which predominate in worldwide prevalence. We established a strategy for vaccine candidate screening, and selected strains D15-RDA-92 (serotype 1) and D14-RDA-8 (serotype 2). These strains were characterized by ≤50% embryo mortality and <3.0 serum resistance assay values in in vitro screening. We evaluated the protective efficacy of live bivalent RA vaccines against virulent homologous serotype RA. Ducklings received two oral immunizations with the bivalent vaccine and showed significant protection against two virulent strains (serotypes 1 and 2) at 21 days post-immunization. No death or clinical signs of diarrhea, tremors, or limb swelling were observed in the immunized ducks. In a safety evaluation, ducks immunized with 100 times higher doses showed no clinical signs, mortality, gross lesions, or histological lesions, and body weight of the ducks showed no significant difference compared to that of negative controls. In addition, IgA analysis showed a significant increase in secretory IgA antibodies generated in the trachea and duodenum of orally immunized ducks at 28 days of age. The IgA might be involved in one of the major immune responses to RA and contributes to protecting against virulent RA. In this study, we developed monovalent and bivalent RA vaccines that were safe in ducks and provided significant protective efficacy against virulent homologous RA strains.
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Fernandez CP, Afrin F, Flores RA, Kim WH, Jeong J, Kim S, Lillehoj HS, Min W. Identification of duck IL-4 and its inhibitory effect on IL-17A expression in R. anatipestifer- stimulated splenic lymphocytes. Mol Immunol 2018; 95:20-29. [DOI: 10.1016/j.molimm.2018.01.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 12/29/2017] [Accepted: 01/19/2018] [Indexed: 12/13/2022]
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Fernandez CP, Afrin F, Flores RA, Kim WH, Jeong J, Kim S, Chang HH, Lillehoj HS, Min W. Downregulation of inflammatory cytokines by berberine attenuates Riemerella anatipestifer infection in ducks. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2017; 77:121-127. [PMID: 28780326 DOI: 10.1016/j.dci.2017.07.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 07/31/2017] [Accepted: 07/31/2017] [Indexed: 06/07/2023]
Abstract
Riemerella anatipestifer, an important infectious bacterium affecting the duck industry, has 5-75% mortality, depending on strain virulence. We previously demonstrated that proinflammatory cytokines are involved in inflammation during, and regulating susceptibility to, R. anatipestifer infection. We investigated the effects of the anti-inflammatory compound berberine in duck splenic lymphocytes stimulated with killed R. anatipestifer, and in R. anatipestifer-infected ducks. IL-17A, IL-17F, and IL-1β transcripts were downregulated, and IFN-γ and IL-10 transcripts enhanced, in berberine-treated stimulated splenic lymphocytes, compared to stimulated untreated splenic lymphocytes. Similarly, IL-17A, IL-17F, IL-6, and IL-1β expressions were significantly reduced, and IFN-γ and IL-10 expressions significantly upregulated, in spleens and livers of R. anatipestifer-infected berberine-treated ducks, compared to infected untreated birds. Moreover, infected and treated birds showed increased survival rates and significantly decreased bacterial burdens compared to infected untreated birds, confirming that inflammatory cytokines are strongly associated with R. anatipestifer infection in ducks.
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Affiliation(s)
- Cherry P Fernandez
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, South Korea
| | - Fahmida Afrin
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, South Korea
| | - Rochelle A Flores
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, South Korea
| | - Woo H Kim
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, South Korea; Animal Biosciences and Biotechnology Laboratory, BARC, ARS, USDA, Beltsville, MD 20705, USA
| | - Jipseol Jeong
- National Institute of Environmental Research, Environmental Research Complex, Incheon 22689, South Korea
| | - Suk Kim
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, South Korea
| | - Hong H Chang
- Department of Animal Science, College of Agriculture, Gyeongsang National University, Jinju 52828, South Korea
| | - Hyun S Lillehoj
- Animal Biosciences and Biotechnology Laboratory, BARC, ARS, USDA, Beltsville, MD 20705, USA
| | - Wongi Min
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju 52828, South Korea.
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Zhang Q, Wan C, Li C, Bai X, Liu M, Liu S, Zhang Y. Evaluation of a quantitative real-time PCR for rapid detection of Riemerella Anatipestifer infection in birds. J Vet Med Sci 2017; 79:2057-2062. [PMID: 28781328 PMCID: PMC5745191 DOI: 10.1292/jvms.17-0227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
To establish an accurate, rapid, and a quantifiable method for the detection of
Riemerella anatipestifer infection, a widespread infectious disease in
birds, we developed a TaqMan-based real-time PCR assay by using DtxR
gene-specific primers and a TaqMan probe. The standard curve established with a linear
correlation (R2) of 0.998 and efficiency of 99% between the Ct
value and the logarithm of the plasmid copy number. The reproducibility and specificity of
the real-time PCR assay were confirmed by using plasmids containing DtxR
genes or DNAs extracted from well-known bacteria or viruses causing duck diseases. The
real-time PCR assay was 100 times more sensitive than the conventional PCR. The results
reveal that the established real-time PCR assay might be a useful method for diagnosis and
quantitative detection of Riemerella anatipestifer in birds.
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Affiliation(s)
- Qingshan Zhang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin 150001, PR China
| | - Chunhe Wan
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Chenxi Li
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin 150001, PR China
| | - Xiaofei Bai
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin 150001, PR China
| | - Ming Liu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin 150001, PR China
| | - Siguo Liu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin 150001, PR China
| | - Yun Zhang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute of Chinese Academy of Agricultural Sciences, Harbin 150001, PR China
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RETROSPECTIVE ANALYSIS OF THE EPIDEMIOLOGIC LITERATURE, 1990-2015, ON WILDLIFE-ASSOCIATED DISEASES FROM THE REPUBLIC OF KOREA. J Wildl Dis 2016; 53:5-18. [PMID: 27705103 DOI: 10.7589/2015-12-348] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
To assess the status of research on wildlife diseases in the Republic of Korea (ROK) and to identify trends, knowledge gaps, and directions for future research, we reviewed epidemiologic publications on wildlife-associated diseases in the ROK. We identified a relatively small but rapidly increasing body of literature. The majority of publications were focused on public or livestock health and relatively few addressed wildlife health. Most studies that focused on human and livestock health were cross-sectional whereas wildlife health studies were mostly case reports. Fifteen diseases notifiable to the World Organisation for Animal Health were identified and 21 diseases were identified as notifiable to either the Korea Ministry of Health and Welfare or the Korea Ministry of Agriculture, Food and Rural Affairs. Two diseases were reported as occurring as epidemics; highly pathogenic avian influenza (HPAI) and virulent Newcastle disease. Six diseases or disease agents were described in the literature as emerging including HPAI, rabies, Babesia microti , avian coronaviruses, scrub typhus, and severe fever thrombocytopenia syndrome virus. The diseases for which there were the largest number of publications were HPAI and rabies. The majority of wildlife-associated zoonotic disease publications focused on food-borne parasitic infections or rodent-associated diseases. Several publications focused on the potential of wildlife as reservoirs of livestock diseases; in particular, Korean water deer ( Hydropotes inermis argyropus ) and wild boar ( Sus scrofa ). In contrast, there were few publications on diseases of concern for wildlife populations or research to understand the impacts of these diseases for wildlife management. Increased focus on prospective studies would enhance understanding of disease dynamics in wildlife populations. For the high-consequence diseases that impact multiple sectors, a One Health approach, with coordination among the public health, agricultural, and environmental sectors, would be important. This type of review can provide useful information for countries or regions planning or implementing national wildlife health programs.
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Fernandez CP, Kim WH, Diaz JAR, Jeong J, Afrin F, Kim S, Jang HK, Lee BH, Yim D, Lillehoj HS, Min W. Upregulation of duck interleukin-17A during Riemerella anatipestifer infection. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2016; 63:36-46. [PMID: 27212414 DOI: 10.1016/j.dci.2016.05.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 05/16/2016] [Accepted: 05/16/2016] [Indexed: 06/05/2023]
Abstract
Although IL-17 cytokines play critical roles in host defense immunity, dysregulated expression of these cytokines is associated with inflammation and autoimmune diseases. Riemerella anatipestifer is the most important infectious bacterium in the duck industry. Interestingly, not all avian species are equally susceptible to R. anatipestifer infection. This paper reports the first description of mortality rate, bacterial burden, and expression profiles of immune-related genes between ducks and chickens infected with R. anatipestifer. Ducks exhibited increased susceptibility to R. anatipestifer infection compared to chickens, as determined by mortality rate and bacterial burden. Comparative expression analyses of immune-related genes in R. anatipestifer-infected tissues obtained from both species revealed that TLR3, TLR7, IL-2, IL-4, and IFN-γ transcript levels were higher in chickens, whereas TLR4 and IL-17A transcript levels were higher in ducks. Marked increases in expression of IL-17A and IL-6, but not TGF-β, were associated with Th17 cell differentiation in duck splenic lymphocytes, but not in chicken splenic lymphocytes, stimulated with R. anatipestifer. Moreover, upregulation of IL-1β, IL-6, and IL-17A mRNA expressions, but not TGF-β, was confirmed in the liver and spleen of ducks infected with R. anatipestifer, indicating that IL-17A is strongly associated with Riemerella infection in ducks.
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Affiliation(s)
- Cherry P Fernandez
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Woo H Kim
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Joyce Anne R Diaz
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Jipseol Jeong
- Environmental Health Research Division, National Institute of Environmental Research, Incheon, 22689, Republic of Korea
| | - Fahmida Afrin
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Suk Kim
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Hyung-Kwan Jang
- Departments of Infectious Diseases and Avian Diseases, College of Veterinary Medicine & Korea Zoonosis Research Institute, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - Byung-Hyung Lee
- Daesung Microbiological Laboratory, Samdong, Uiwangsi, Gyeonggido, 16103, Republic of Korea
| | - Dongjean Yim
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Hyun S Lillehoj
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, 20705, USA
| | - Wongi Min
- College of Veterinary Medicine & Institute of Animal Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea.
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Chikuba T, Uehara H, Fumikura S, Takahashi K, Suzuki Y, Hoshinoo K, Yamamoto Y. Riemerella anatipestifer infection in domestic ducks in Japan, 2014. J Vet Med Sci 2016; 78:1635-1638. [PMID: 27373315 PMCID: PMC5095637 DOI: 10.1292/jvms.16-0278] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The outbreak of Riemerella anatipestifer (RA) infection has been confirmed in meat-type domestic ducks (Anas platyrhynchos)
for the first time in 27 years in Japan. In January 2014, increased mortality in a 14- to 21-day-old duck flock was reported to veterinary officials by the
owner. The affected ducks exhibited reduced movement, ataxia and dorsal recumbency with leg paddling. Pathological findings were typical for an RA infection.
Fibrinous and heterophilic pericarditis, airsacculitis, perihepatitis, ventriculitis and meningitis were observed. The bacterial isolate from duck organs was
identified as RA by PCR-based 16S ribosomal RNA sequencing.
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Affiliation(s)
- Takumi Chikuba
- Mie Chuo Livestock Hygiene Service Center, 1742-1 Ishinden-Kozubeta, Tsu, Mie 514-0061, Japan
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