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Tao Y, Ge Y, Yang J, Song W, Jin D, Lin H, Zheng H, Lu S, Luo W, Huang Y, Zhuang Z, Xu J. A novel phytopathogen Erwinia sorbitola sp. nov., isolated from the feces of ruddy shelducks. Front Cell Infect Microbiol 2023; 13:1109634. [PMID: 36875519 PMCID: PMC9978198 DOI: 10.3389/fcimb.2023.1109634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 02/02/2023] [Indexed: 02/18/2023] Open
Abstract
The species in the genus Erwinia are Gram-stain-negative, facultatively anaerobic, motile, and rod-shaped. Most species in the genus Erwinia are phytopathogens. Also, Erwinia persicina was involved in several human infections. Based on the reverse microbial etiology principles, it is worth analyzing the pathogenicity of species in this genus. In this study, we isolated and sequenced two species of Erwinia. Phylogenetic, phenotypic, biochemical, and chemotaxonomic analyses were performed to identify its taxonomy position. The virulence tests on plant leaves and pear fruits were used to identify the plant pathogenicity of two species of Erwinia. Bioinformatic methods predicted the possible pathogenic determinants based on the genome sequence. Meanwhile, adhesion, invasion, and cytotoxicity assays on RAW 264.7 cells were applied to identify animal pathogenicity. We isolated two Gram-stain-negative, facultatively anaerobic, motile, and rod-shaped strains from the feces of ruddy shelducks in the Tibet Plateau of China, designated J780T and J316. Distinct phylogenetic, genomic, phenotypic, biochemical, and chemotaxonomic characters of J780T and J316 identified they were novel species and belonged to the genus Erwinia, for which the name Erwinia sorbitola sp. nov. was proposed, the type strain was J780T (= CGMCC 1.17334T = GDMCC 1.1666T = JCM 33839T). Virulence tests showed blight and rot on the leaves and pear fruits confirmed Erwinia sorbitola sp. nov. was a phytopathogen. Predicted gene clusters of motility, biofilm formation, exopolysaccharides, stress survival, siderophores, and Type VI secretion system might be the causes of pathogenicity. In addition, predicted polysaccharide biosynthesis gene clusters on the genome sequence, and the high capacity for adhesion, invasion, and cytotoxicity to animal cells confirmed it has pathogenicity on animals. In conclusion, we isolated and identified a novel phytopathogen Erwinia sorbitola sp. nov. in ruddy shelducks. A predefined pathogen is beneficial for preventing from suffering potential economic losses caused by this new pathogen.
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Affiliation(s)
- Yuanmeihui Tao
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, China
| | - Yajun Ge
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, China
- College of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, China
| | - Jing Yang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, China
- Research Units of Discovery of Unknown Bacteria and Function, Chinese Academy of Medical Sciences, Beijing, China
| | - Weitao Song
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Dong Jin
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, China
- Research Units of Discovery of Unknown Bacteria and Function, Chinese Academy of Medical Sciences, Beijing, China
| | - Hong Lin
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Han Zheng
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, China
- Research Units of Discovery of Unknown Bacteria and Function, Chinese Academy of Medical Sciences, Beijing, China
| | - Shan Lu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, China
- Research Units of Discovery of Unknown Bacteria and Function, Chinese Academy of Medical Sciences, Beijing, China
| | - Wenbo Luo
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, China
| | - Yuyuan Huang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, China
| | - Zhenhong Zhuang
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- *Correspondence: Zhenhong Zhuang, ; Jianguo Xu,
| | - Jianguo Xu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, China
- Research Units of Discovery of Unknown Bacteria and Function, Chinese Academy of Medical Sciences, Beijing, China
- Research Institute of Public Health, Nankai University, Tianjin, China
- *Correspondence: Zhenhong Zhuang, ; Jianguo Xu,
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Guo Z, Zhang S, Sun Y, Li Q, Tang Y, Diao Y, Hou S. Genomic characteristics, pathogenicity and viral shedding of a novel DVEV variant derived from goose. Poult Sci 2022; 102:102392. [PMID: 36745957 PMCID: PMC9906019 DOI: 10.1016/j.psj.2022.102392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/10/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
Duck virus enteritis (DVE), caused by the DVE virus (DVEV), is an acute, septicemic, and contagious disease affecting ducks of different breeds, ages, and sexes. In late spring and summer 2019, several outbreaks of DVE were reported in areas with large waterfowl industries in central and southern China. A goose farm located in Jining County, Shandong Province, was impacted by an acute DVE outbreak in July 2019. The causative DVEV field strain (Goose/DVEV/SDJN/China/2019) was subsequently isolated from the liver specimens collected from acute cases of dead geese, which showed severe hemorrhagic lesions on the esophageal mucosal membranes of specimens collected from all the postmortem cases. Comparison of the genome sequence of this newly isolated field strain (Goose/DVEV/SDJN/China/2019) with the common DVEV strains revealed insertions or mutations in the gB and gC genes, which possibly caused the observed high morbidity and mortality in this acute outbreak. We conducted a trial among geese to evaluate the pathogenicity of this strain. Healthy experimental goslings aged 15 d old were inoculated with 10-5.53 ELD50/0.2 mL doses orally or through intramuscular injection. Clinical signs and esophageal erosion appeared in infected geese. Necropsy revealed hemorrhage and necrosis of the cloacal mucosa and liver. Detection of the virus using real-time PCR in the liver, brain, and spleen indicated that they were the hotspots of DVEV infections. One day after the DVEV infection, virus release and seroconvert were observed in infected geese. Thus, our studies demonstrate that DVEV is highly pathogenic and contagious in geese. To the best of our knowledge, this is the first study on the pathogenicity of mutant duck viral enteritis virus in goslings. This study serves as a foundation for further investigations into the pathophysiology of the recently identified variant DVEV strains.
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Affiliation(s)
- Zhanbao Guo
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Hai'dian, Beijing, 100097, China
| | - Shuai Zhang
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province, 271018, China,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, 271018, China,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, 271018, China
| | - Yonglin Sun
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province, 271018, China,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, 271018, China,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, 271018, China
| | - Qiuyue Li
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province, 271018, China,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, 271018, China,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, 271018, China
| | - Yi Tang
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province, 271018, China,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, 271018, China,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, 271018, China
| | - Youxiang Diao
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong Province, 271018, China,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong, 271018, China,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong, 271018, China
| | - Shuisheng Hou
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Hai'dian, Beijing, 100097, China.
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Dai M, Huang Y, Wang L, Luo J, Yan N, Zhang L, Huang H, Zhou J, Li Z, Xu C. Genomic Sequence and Pathogenicity of the Chicken Anemia Virus Isolated From Chicken in Yunnan Province, China. Front Vet Sci 2022; 9:860134. [PMID: 35664859 PMCID: PMC9158507 DOI: 10.3389/fvets.2022.860134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 04/04/2022] [Indexed: 11/24/2022] Open
Abstract
Chicken anemia virus (CAV), which has been reported in many countries, causes severe anemia and immunosuppression in chickens. In this study, a CAV strain YN04 belonging to genotype A was first identified from infected chickens in Yunnan province, China. Moreover, the animal infection experiments further confirmed that the strain YN04 is a highly pathogenic strain, which can cause 86.67% mortality in chickens in the infection group. The mean death time of infected chickens was 13.1 days post infection (dpi). CAV infection induced severe anemia with significant decrease in packed cell volume (PCV), and serious atrophy and lesion of thymus and bursa with high viral load at 14 dpi. Besides, CAV infection caused a sharp decrease in chicken body weight and immune organ indices including the ratio of thymus or bursa to body weight at 21 dpi, which displayed the potential immunosuppression state at this stage. These findings enrich the epidemiological data on CAV and may provide information for preventing its further spread in Yunnan province, China.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Chenggang Xu
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangdong Provincial Key Laboratory of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
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Wu H, Li C, Chakraborti P, Guo Z, Peng B, Gu W, Kang B, Gu Q. First Report of Watermelon Charcoal Rot ( Macrophomina phaseolina) in China. Plant Dis 2022; 106:1521. [PMID: 34752122 DOI: 10.1094/pdis-07-21-1362-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- Huijie Wu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, Henan, China
| | - Chaohan Li
- Horticultural Research Institute, Shanghai Academy of Agricultural Sciences/Shanghai Key Lab of Protected Horticultural Technology, 201403, Shanghai, China
| | - Priyanka Chakraborti
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, Henan, China
| | - Zhen Guo
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, Henan, China
| | - Bin Peng
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, Henan, China
| | - Weihong Gu
- Horticultural Research Institute, Shanghai Academy of Agricultural Sciences/Shanghai Key Lab of Protected Horticultural Technology, 201403, Shanghai, China
| | - Baoshan Kang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, Henan, China
| | - Qinsheng Gu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, Henan, China
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Zhou W, Huang Y, Wei J, Wang JL, Huang B, Zhou X, Yan J, Wu Y, Lin F, Wen W. A novel fibrinogen γ-chain frameshift mutation, p. Cys365Phefs*41, causing hypofibrinogenemia with bleeding phenotype in a Chinese family. Ann Transl Med 2021; 9:1308. [PMID: 34532445 PMCID: PMC8422118 DOI: 10.21037/atm-21-3207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 08/05/2021] [Indexed: 11/08/2022]
Abstract
Background Congenital hypofibrinogenemia is a rare bleeding disease that is classified as the quantitative deficient type. In the present study, investigated the relationship between the genotype and phenotype in a family with hypofibrinogenemia. Methods The proband was aware of a predisposition to bleeding. Functional analysis was performed for her all family members, including coagulation function tests, thrombus molecular markers, thromboelastography, scanning electron microscopy, DNA sequencing, and high-performance liquid chromatography-mass spectrometry (HPLC-MS). Pathogenicity analysis and protein modeling of mutant amino acids were also performed. Results A novel heterozygous mutation in c.1094delG was detected in FGG exon 8, which resulted in p. Cys365Phefs*41 (containing the signal peptide) in the proband and her mother, who showed a corresponding decrease in fibrinogen function and levels. Thromboelastography indicated that the strength of their blood clots decreased and they had an increased risk of bleeding. The proband fibrin network structure was looser than healthy controls, with large pores in the network, which increased the permeability of lytic enzymes. Results of HPLC-MS showed a lack of mutant peptide chain expression in their plasma, indicating that the family had congenital hypofibrinogenemia, with a clinical phenotype that is related to the degree of fibrinogen deficiency. The mutation truncated the γ-peptide chain and destroyed the functional structure of fibrinogen, including the γ352Cys-γ365Cys disulfide bond. The truncated peptide chains may also lead to nonsense-mediated decay. Conclusions The mutation induced a structural change at the carboxyl-terminal of the fibrinogen molecule, leading to fibrinogen secretion dysfunction.
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Affiliation(s)
- Weijie Zhou
- Clinical Laboratory, The Affiliated Shunde Hospital of Jinan University, Foshan, China.,Clinical Laboratory Center, The First Affiliated Hospital of Jinan University, Guangzhou, China.,Reproductive Genetics Laboratory, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China.,Clinical Laboratory, The People's Hospital of Baise, Baise, China
| | - Yan Huang
- Department of Hematology, The People's Hospital of Baise, Baise, China
| | - Jie Wei
- Department of Hematology, The People's Hospital of Baise, Baise, China
| | - Jun Li Wang
- Reproductive Genetics Laboratory, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Boming Huang
- Clinical Laboratory, The People's Hospital of Baise, Baise, China
| | - Xiaoxuan Zhou
- Clinical Laboratory, The People's Hospital of Baise, Baise, China
| | - Jie Yan
- Clinical Laboratory, The Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yangyang Wu
- Clinical Laboratory, The Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Faquan Lin
- Clinical Laboratory, The Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Wangrong Wen
- Clinical Laboratory, The Affiliated Shunde Hospital of Jinan University, Foshan, China.,Clinical Laboratory Center, The First Affiliated Hospital of Jinan University, Guangzhou, China
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Huo C, Ma Z, Li F, Xu F, Li T, Zhang Y, Jiang N, Xing W, Xu G, Luo L, Sun H. First isolation and pathogenicity analysis of a genogroup U strain of infectious hematopoietic necrosis virus from rainbow trout in China. Transbound Emerg Dis 2021; 69:337-348. [PMID: 33417745 DOI: 10.1111/tbed.13983] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 12/19/2020] [Accepted: 01/05/2021] [Indexed: 11/26/2022]
Abstract
Infectious hematopoietic necrosis virus (IHNV) is a major fish viral pathogen causing acute clinical disease and death in a variety of salmonids. IHNV isolates have been classified into five major genogroups according to the phylogenetic analysis of partial G gene fragments or the complete G gene sequence: U, M, E, L and J. Genogroup U strains have been reported in North America and Japan prior to 1982, and genogroup J is the only genogroup that has been reported in China. Here, one of IHNV strain (BjLL) was isolated from a local farm in China and were characterized in this study. The homogenate tissues of infected fry induced IHNV-positive cytopathic effects in epithelioma papulosum cyprinid (EPC) cells that were confirmed by RT-PCR and sequencing. The complete genome sequence of BjLL comprised 11,129 nucleotides, which had been submitted to GenBank (accession no. MF509592). By the sequence comparison and phylogenetic analysis for the G gene sequence of BjLL with 51 reference sequences in GenBank, we confirmed that this Chinese isolate belonged to genogroup U. Furthermore, virus exposure experiments with juvenile rainbow trout were conducted to assess the virulence and pathogenicity of BjLL. Compared with GS-2014 of genogroup J, BjLL was an obviously less virulent strain that could result in lower mortality. Besides, typical clinical symptoms and pathological damages could be seen in fish following infection of BjLL. The present study is the first report of genogroup U IHNV infection in China and will provide essential information for future studies on pathogenesis of IHNV BjLL and development of efficient control strategies.
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Affiliation(s)
- Caiyun Huo
- Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Zhihong Ma
- Beijing Fisheries Research Institute, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Fangbing Li
- Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Fuzhou Xu
- Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Tieliang Li
- Beijing Fisheries Research Institute, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Yue Zhang
- Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Na Jiang
- Beijing Fisheries Research Institute, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Wei Xing
- Beijing Fisheries Research Institute, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Guanling Xu
- Beijing Fisheries Research Institute, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Lin Luo
- Beijing Fisheries Research Institute, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Huiling Sun
- Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
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Shi MY, Li M, Wang WW, Deng QM, Li QH, Gao YL, Wang PK, Huang T, Wei P. The Emergence of a vv + MDV Can Break through the Protections Provided by the Current Vaccines. Viruses 2020; 12:v12091048. [PMID: 32962247 PMCID: PMC7551601 DOI: 10.3390/v12091048] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/06/2020] [Accepted: 09/17/2020] [Indexed: 12/29/2022] Open
Abstract
Marek’s disease (MD) is an infectious malignant T-cell lymphoma proliferative disease caused by Marek’s disease virus (MDV). In recent years, the emergence of very virulent (vv) and/or very virulent plus (vv +) strains of MDV in the field has been suggested as one of the causes of vaccination failure. The pathogenicity of the MDV strain GX18NNM4, isolated from a clinical outbreak in a broiler breeder flock that was vaccinated with CVI988/Rispens, was investigated. In the vaccination-challenge test, GX18NNM4 was able to break through the protections provided by the vaccines CVI988 and 814. It also significantly reduced body weight gain and caused marked gross lesions and a large area of infiltration of neoplastic lymphocyte cells in the heart, liver, pancreas, etc. of the infected birds. In addition, the expressions of programmed death 1 (PD-1) and its ligand, programmed death ligand 1 (PD-L1), in the spleens and cecal tonsils (CTs) of the unvaccinated challenged birds were significantly increased compared to those in the vaccinated challenged birds, indicating that the PD-1/PD-L1 pathway is related to immune evasion mechanisms. The results showed that the GX18NNM4 strain could cause severe immunosuppression and significantly decrease the protections provided by the current commercial vaccines, thus showing GX18NNM4 to be a vv + MDV strain.
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Affiliation(s)
- Meng-ya Shi
- Institute for Poultry Science and Health, Guangxi University, Nanning 530004, China; (M.-y.S.); (M.L.); (W.-w.W.); (Q.-m.D.); (Q.-h.L.); (Y.-l.G.); (T.H.)
| | - Min Li
- Institute for Poultry Science and Health, Guangxi University, Nanning 530004, China; (M.-y.S.); (M.L.); (W.-w.W.); (Q.-m.D.); (Q.-h.L.); (Y.-l.G.); (T.H.)
| | - Wei-wei Wang
- Institute for Poultry Science and Health, Guangxi University, Nanning 530004, China; (M.-y.S.); (M.L.); (W.-w.W.); (Q.-m.D.); (Q.-h.L.); (Y.-l.G.); (T.H.)
| | - Qiao-mu Deng
- Institute for Poultry Science and Health, Guangxi University, Nanning 530004, China; (M.-y.S.); (M.L.); (W.-w.W.); (Q.-m.D.); (Q.-h.L.); (Y.-l.G.); (T.H.)
| | - Qiu-hong Li
- Institute for Poultry Science and Health, Guangxi University, Nanning 530004, China; (M.-y.S.); (M.L.); (W.-w.W.); (Q.-m.D.); (Q.-h.L.); (Y.-l.G.); (T.H.)
| | - Yan-li Gao
- Institute for Poultry Science and Health, Guangxi University, Nanning 530004, China; (M.-y.S.); (M.L.); (W.-w.W.); (Q.-m.D.); (Q.-h.L.); (Y.-l.G.); (T.H.)
| | - Pei-kun Wang
- Institute of Microbe and Host Health, Linyi University, Linyi 276005, China;
| | - Teng Huang
- Institute for Poultry Science and Health, Guangxi University, Nanning 530004, China; (M.-y.S.); (M.L.); (W.-w.W.); (Q.-m.D.); (Q.-h.L.); (Y.-l.G.); (T.H.)
| | - Ping Wei
- Institute for Poultry Science and Health, Guangxi University, Nanning 530004, China; (M.-y.S.); (M.L.); (W.-w.W.); (Q.-m.D.); (Q.-h.L.); (Y.-l.G.); (T.H.)
- Correspondence:
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Cui J, Xu Y, Zhou Z, Xu Q, Wang J, Xiao Y, Li Z, Bi D. Pathogenicity and Molecular Typing of Fowl Adenovirus-Associated With Hepatitis/Hydropericardium Syndrome in Central China (2015-2018). Front Vet Sci 2020; 7:190. [PMID: 32411734 PMCID: PMC7198797 DOI: 10.3389/fvets.2020.00190] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 03/23/2020] [Indexed: 11/22/2022] Open
Abstract
In central China, a large number of broiler and layer flocks have suffered from outbreaks of severe hepatitis/hydropericardium syndrome (HHS). This resulted in huge economic losses to the poultry industry, from 2015 to 2018. To identify the specific pathogen and study its pathogenicity, 195 samples from Hubei, Jiangxi, Anhui, Hunan, and Henan provinces in central China were collected. The samples were screened for the adenovirus hexon gene, and neighbor joining was used for the phylogenetic reconstruction of the sequences. Among the collected samples, 122 were found to be positive for fowl adenovirus (FAdV) by PCR, and 73 isolates were obtained. The predominant viral serotype was serotype 4 (FAdV-4), which was found in 48 isolates, while 24 were serotype 10 (FAdV-10), and one was serotype 2 (FAdV-2). The CH/HBTF /1710 isolate was selected for further experiment and inoculated into 33-day-old specific pathogen-free chickens via intramuscular injection or oral administration to evaluate pathogenicity. It was found that the mortality for chickens infected by intramuscular injection or oral administration was 70 and 60%, respectively. Necropsy revealed mild to severe hepatitis and hydropericardium at 5 and 7 days after infection. Ancestor analyses indicated that all of the FAdV-4 strains obtained in this study shared a common Indian precursor and had a close genetic relationship with the JSJ13, SDSX, HN/151025, and SDDM-15 strains common in China.
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Affiliation(s)
- Jin Cui
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Huazhong Agricultural University, Wuhan, China.,College of Animal Science and Technology, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Yingying Xu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Zutao Zhou
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Huazhong Agricultural University, Wuhan, China
| | - Qingrong Xu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Huazhong Agricultural University, Wuhan, China
| | - Jiaxiang Wang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yuncai Xiao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Huazhong Agricultural University, Wuhan, China
| | - Zili Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Huazhong Agricultural University, Wuhan, China
| | - Dingren Bi
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Huazhong Agricultural University, Wuhan, China
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