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Khaled N, Kulkarni RR, Käser T, Gimeno IM. Temporal Changes in Splenic Immune Cell Populations following Infection with a Very Virulent plus MDV in Commercial Meat-Type Chickens. Viruses 2024; 16:1092. [PMID: 39066253 PMCID: PMC11281429 DOI: 10.3390/v16071092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 07/02/2024] [Accepted: 07/04/2024] [Indexed: 07/28/2024] Open
Abstract
Marek's disease virus (MDV) can cause severe immunosuppression in chickens. Our previous study showed that infection with very virulent plus (vv+) MDV strains of one-day-old commercial meat-type chickens possessing maternal antibodies against MDV resulted in severe depletion of splenocytes at 28-30 days of age. In the present study, we have investigated the effect of vv+MDV strain 686 on splenic immunophenotypes at 6, 20, and 30 days post-infection (dpi). Both live and dead cells were analyzed, and the data were statistically compared to the uninfected control. The results revealed a decrease in the total live cell population starting on day 20, primarily affecting B cells, CD8β+, and gamma delta (γδ) T cells, while the frequencies of both live and dead CD3+ and CD4+ T cells were increased. The MHC-I expression of CD3+ and CD4+ T cells was higher at 20 and 30 dpi, while the expression of MHC-II on these cells was downregulated at 6 dpi but was upregulated at 30 dpi. Collectively, these results suggest that maternal antibodies seem to delay the negative effects of vv+MDV on the splenic lymphoid populations, albeit being non-protective. Our results emphasize the importance of MD vaccination in vv+MDV endemic areas.
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Affiliation(s)
- Nagwa Khaled
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA; (N.K.); (R.R.K.); (T.K.)
- Department of Virology, Faculty of Veterinary Medicine, University of Sadat City, Monofiya 23511, Egypt
| | - Raveendra R. Kulkarni
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA; (N.K.); (R.R.K.); (T.K.)
| | - Tobias Käser
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA; (N.K.); (R.R.K.); (T.K.)
| | - Isabel M. Gimeno
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA; (N.K.); (R.R.K.); (T.K.)
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Zhu ZJ, Teng M, Liu Y, Chen FJ, Yao Y, Li EZ, Luo J. Immune escape of avian oncogenic Marek's disease herpesvirus and antagonistic host immune responses. NPJ Vaccines 2024; 9:109. [PMID: 38879650 PMCID: PMC11180173 DOI: 10.1038/s41541-024-00905-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 06/07/2024] [Indexed: 06/19/2024] Open
Abstract
Marek's disease virus (MDV) is a highly pathogenic and oncogenic alpha herpesvirus that causes Marek's disease (MD), which is one of the most important immunosuppressive and rapid-onset neoplastic diseases in poultry. The onset of MD lymphomas and other clinical diseases can be efficiently prevented by vaccination; these vaccines are heralded as the first demonstration of a successful vaccination strategy against a cancer. However, the persistent evolution of epidemic MDV strains towards greater virulence has recently resulted in frequent outbreaks of MD in vaccinated chicken flocks worldwide. Herein, we provide an overall review focusing on the discovery and identification of the strategies by which MDV evades host immunity and attacks the immune system. We have also highlighted the decrease in the immune efficacy of current MD vaccines. The prospects, strategies and new techniques for the development of efficient MD vaccines, together with the possibilities of antiviral therapy in MD, are also discussed.
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Affiliation(s)
- Zhi-Jian Zhu
- College of Biological and Food Engineering & Affiliated Central Hospital, Huanghuai University, Zhumadian, 463000, People's Republic of China
- Institute for Animal Health & UK-China Center of Excellence for Research on Avian Disease, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, People's Republic of China
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, People's Republic of China
- Key Laboratory of Animal Immunology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Zhengzhou, 450002, People's Republic of China
| | - Man Teng
- Institute for Animal Health & UK-China Center of Excellence for Research on Avian Disease, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, People's Republic of China
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, People's Republic of China
- Key Laboratory of Animal Immunology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Zhengzhou, 450002, People's Republic of China
| | - Yu Liu
- College of Biological and Food Engineering & Affiliated Central Hospital, Huanghuai University, Zhumadian, 463000, People's Republic of China
| | - Fu-Jia Chen
- College of Biological and Food Engineering & Affiliated Central Hospital, Huanghuai University, Zhumadian, 463000, People's Republic of China
| | - Yongxiu Yao
- The Pirbright Institute & UK-China Centre of Excellence for Research on Avian Diseases, Pirbright, Ash Road, Guildford, Surrey, GU24 0NF, UK
| | - En-Zhong Li
- College of Biological and Food Engineering & Affiliated Central Hospital, Huanghuai University, Zhumadian, 463000, People's Republic of China.
| | - Jun Luo
- Institute for Animal Health & UK-China Center of Excellence for Research on Avian Disease, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, People's Republic of China.
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, People's Republic of China.
- Key Laboratory of Animal Immunology, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Zhengzhou, 450002, People's Republic of China.
- Laboratory of Functional Microbiology and Animal Health, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471003, People's Republic of China.
- Longhu Laboratory, Zhengzhou, 450046, People's Republic of China.
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Kim M, Ediriweera TK, Cho E, Chung Y, Manjula P, Yu M, Macharia JK, Nam S, Lee JH. Major histocompatibility complex genes exhibit a potential immunological role in mixed Eimeria-infected broiler cecum analyzed using RNA sequencing. Anim Biosci 2024; 37:993-1000. [PMID: 38271966 PMCID: PMC11065961 DOI: 10.5713/ab.23.0412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/17/2023] [Accepted: 11/28/2023] [Indexed: 01/27/2024] Open
Abstract
OBJECTIVE This study was conducted to investigate the differential expression of the major histocompatibility complex (MHC) gene region in Eimeria-infected broiler. METHODS We profiled gene expression of Eimeria-infected and uninfected ceca of broilers sampled at 4, 7, and 21 days post-infection (dpi) using RNA sequencing. Differentially expressed genes (DEGs) between two sample groups were identified at each time point. DEGs located on chicken chromosome 16 were used for further analysis. Kyoto encyclopedia of genes and genomes (KEGG) pathway analysis was conducted for the functional annotation of DEGs. RESULTS Fourteen significant (false discovery rate <0.1) DEGs were identified at 4 and 7 dpi and categorized into three groups: MHC-Y class I genes, MHC-B region genes, and non-MHC genes. In Eimeria-infected broilers, MHC-Y class I genes were upregulated at 4 dpi but downregulated at 7 dpi. This result implies that MHC-Y class I genes initially activated an immune response, which was then suppressed by Eimeria. Of the MHC-B region genes, the DMB1 gene was upregulated, and TAP-related genes significantly implemented antigen processing for MHC class I at 4 dpi, which was supported by KEGG pathway analysis. CONCLUSION This study is the first to investigate MHC gene responses to coccidia infection in chickens using RNA sequencing. MHC-B and MHC-Y genes showed their immune responses in reaction to Eimeria infection. These findings are valuable for understanding chicken MHC gene function.
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Affiliation(s)
- Minjun Kim
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134,
Korea
| | | | - Eunjin Cho
- Department of Bio-AI Convergence, Chungnam National University, Daejeon 34134,
Korea
| | - Yoonji Chung
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134,
Korea
| | - Prabuddha Manjula
- Department of Animal Science, Uva Wellassa University, Badulla 90000,
Sri Lanka
| | - Myunghwan Yu
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134,
Korea
| | - John Kariuki Macharia
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134,
Korea
| | - Seonju Nam
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134,
Korea
| | - Jun Heon Lee
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134,
Korea
- Department of Bio-AI Convergence, Chungnam National University, Daejeon 34134,
Korea
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Chen S, Liu J, Luo S, Xing L, Li W, Gong L. The Effects of Bacillus amyloliquefaciens SC06 on Behavior and Brain Function in Broilers Infected by Clostridium perfringens. Animals (Basel) 2024; 14:1547. [PMID: 38891594 PMCID: PMC11171150 DOI: 10.3390/ani14111547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/18/2024] [Accepted: 05/21/2024] [Indexed: 06/21/2024] Open
Abstract
Poultry studies conducted on Clostridium perfringens (CP) mainly focus on the effects of intestinal health and productive performance. Notably, the probiotic Bacillus amyloliquefaciens SC06 (BaSC06) is known to play a role in preventing bacterial infection. However, whether CP could induce the changes in brain function and behaviors and whether BaSC06 could play roles in these parameters is yet to be reported. The aim of this study was to evaluate the effects of BaSC06 on stress-related behaviors and gene expression, as well as the brain morphology and mRNA sequence of the hypothalamus in broiler chickens. A total of 288 one-day-old chicks were randomly divided into four groups: (1) a control group with no treatment administered or infection; (2) birds treated with the BaSC06 group; (3) a CP group; and (4) a BaSC06 plus CP (Ba_CP) group. The results showed that stress and fear-related behaviors were significantly induced by a CP infection and decreased due to the treatment of BaSC06. CP infection caused pathological damage to the pia and cortex of the brain, while BaSC06 showed a protective effect. CP significantly inhibited hypothalamic GABA and promoted HTR1A gene expression, while BaSC06 promoted GABA and decreased HTR1A gene expression. The different genes were nearly found between the comparisons of control vs. Ba group and Ba vs. CP group, while there were a great number of different genes between the comparisons of control vs. Ba_CP as well as CP vs. Ba_CP. Several different gene expression pathways were found that were related to disease, energy metabolism, and nervous system development. Our results will help to promote poultry welfare and health, as well as provide insights into probiotics to replace antibiotics and reduce resistance in the chicken industry.
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Affiliation(s)
- Siyu Chen
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan 528250, China; (S.C.); (J.L.); (S.L.); (L.X.)
| | - Jinling Liu
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan 528250, China; (S.C.); (J.L.); (S.L.); (L.X.)
| | - Shuyan Luo
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan 528250, China; (S.C.); (J.L.); (S.L.); (L.X.)
| | - Limin Xing
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan 528250, China; (S.C.); (J.L.); (S.L.); (L.X.)
| | - Weifen Li
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Li Gong
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan 528250, China; (S.C.); (J.L.); (S.L.); (L.X.)
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Wang S, Wang H, Jiang Q, Dai J, Dai W, Kang X, Xu T, Zheng X, Fu A, Xing Z, Chen Y, He Z, Lu L, Gu L. Supplementation of dietary areca nut extract modulates the growth performance, cecal microbiota composition, and immune function in Wenchang chickens. Front Vet Sci 2023; 10:1278312. [PMID: 38192720 PMCID: PMC10773572 DOI: 10.3389/fvets.2023.1278312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 11/21/2023] [Indexed: 01/10/2024] Open
Abstract
Introduction The study was aimed at evaluating the effects of areca nut extract (ANE) on the growth performance, cecal microbiota, and immunity of Wenchang chickens. Methods For this study, 42-day-old healthy Wenchang chickens (n = 450) with similar body weight were chosen. The animals were randomly divided into five groups, with six replicates per group and 15 chickens per replicate. One group was fed a basal diet (control; CCK). The remaining four groups were fed a basal diet supplemented with varying ANE concentrations: 0.038, 0.063, 0.100, and 0.151 g/kg, with the groups denoted as CNT1, CNT2, CNT3, and CNT4, respectively. The feeding experiment lasted 35 days. The ligated cecum segments of the control and experimental groups were collected for metabolomic and metagenomic analysis, while the bone marrow samples were extracted for tandem mass tag (TMT)-based proteomic analysis. Results All the experimental groups exhibited significantly higher average daily gain (ADG) and significantly lower feed-to-weight (F/G) ratios than CCK. Metabolomic screening of the cecum contents revealed the presence of 544 differential metabolites, including several gut health-related metabolites, such as xanthine, hydroxy hypoxanthine, 2,5-dimethylhydrazine, ganoderic acid, and 2-aminohexanoic acid. Metagenomic analysis of the cecum contents showed an upregulation in the abundance of Prevotella spp. in the experimental groups. However, we observed no significant differences in the abundances of other cecal microbes at phylum and genus levels. Furthermore, we observed significant associations between Prevotella spp. and the differentially abundant metabolites, such as cherubins, thiaburimamide, and 3,4-dihydroxy-L-phenylalanine, (r)-mevalonate, 5-O-methylalloptaeroxylin, nalidixic acid, and deoxyloganin (p < 0.05). Proteomic analysis revealed that the differentially expressed proteins (such as interferon-induced protein with tetratricopeptide repeats 5 (IFIT5), MHC-BF1, and death domain-associated protein (Daxx)) in the bone marrow of the chickens were primarily enriched in the immune network for IgA production and B cell receptor signaling pathway. Conclusion In conclusion, dietary ANE supplementation was found to enhance metabolic activity and energy utilization, improve growth performance, modulate cecal microbiota, and strengthen the immunity of Wenchang chickens.
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Affiliation(s)
- Shiping Wang
- Haikou Key Laboratory of Areca Processing Research, Institute of Agro-Products Processing and Design, Hainan Academy of Agricultural Sciences, Haikou, China
| | - Hong Wang
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou, China
| | - Qicheng Jiang
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou, China
| | - Jiahui Dai
- Haikou Key Laboratory of Areca Processing Research, Institute of Agro-Products Processing and Design, Hainan Academy of Agricultural Sciences, Haikou, China
| | - Wenting Dai
- Haikou Key Laboratory of Areca Processing Research, Institute of Agro-Products Processing and Design, Hainan Academy of Agricultural Sciences, Haikou, China
| | - Xiaoning Kang
- Haikou Key Laboratory of Areca Processing Research, Institute of Agro-Products Processing and Design, Hainan Academy of Agricultural Sciences, Haikou, China
| | - Tieshan Xu
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Xinli Zheng
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou, China
| | - An Fu
- Wenchang City Wenchang Chicken Research Institute, Wenchang, China
| | - Zengyang Xing
- Wenchang Spring of Dragon Wenchang Chicken Industrial Co., Ltd., Wenchang, China
| | - Yiyong Chen
- Hainan Inheriting Good Taste Wenchang Chicken Industry Co., Ltd., Wenchang, China
| | - Zhongchun He
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou, China
| | - Lizhi Lu
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Lihong Gu
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou, China
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Rocos NIE, Coulter FJ, Tan TCJ, Kaufman J. The minor chicken class I gene BF1 is deleted between short imperfect direct repeats in the B14 and typical B15 major histocompatibility complex (MHC) haplotypes. Immunogenetics 2023; 75:455-464. [PMID: 37405420 PMCID: PMC10514180 DOI: 10.1007/s00251-023-01313-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 06/10/2023] [Indexed: 07/06/2023]
Abstract
The chicken major histocompatibility complex (MHC, also known as the BF-BL region of the B locus) is notably small and simple with few genes, most of which are involved in antigen processing and presentation. There are two classical class I genes, of which only BF2 is well and systemically expressed as the major ligand for cytotoxic T lymphocytes (CTLs). The other class I gene, BF1, is believed to be primarily a natural killer (NK) cell ligand. Among most standard chicken MHC haplotypes examined in detail, BF1 is expressed tenfold less than BF2 at the RNA level due to defects in the promoter or in a splice site. However, in the B14 and typical B15 haplotypes, BF1 RNA was not detected, and here, we show that a deletion between imperfect 32 nucleotide direct repeats has removed the BF1 gene entirely. The phenotypic effects of not having a BF1 gene (particularly on resistance to infectious pathogens) have not been systematically explored, but such deletions between short direct repeats are also found in some BF1 promoters and in the 5' untranslated region (5'UTR) of some BG genes found in the BG region of the B locus. Despite the opposite transcriptional orientation of homologous genes in the chicken MHC, which might prevent the loss of key genes from a minimal essential MHC, it appears that small direct repeats can still lead to deletion.
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Affiliation(s)
- Nicolas I. E. Rocos
- Institute of Immunology and Infection Research, University of Edinburgh, Charlotte Auerbach Road, Edinburgh, EH9 3FL UK
| | - Felicity J. Coulter
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QP UK
- Current Address: Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239 USA
| | - Thomas C. J. Tan
- Institute of Immunology and Infection Research, University of Edinburgh, Charlotte Auerbach Road, Edinburgh, EH9 3FL UK
- Current Address: Wellcome Centre for Cell Biology, Max Born Crescent, Edinburgh, EH9 3BF UK
| | - Jim Kaufman
- Institute of Immunology and Infection Research, University of Edinburgh, Charlotte Auerbach Road, Edinburgh, EH9 3FL UK
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QP UK
- Department of Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge, CB3 0ES UK
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Some thoughts about what non-mammalian jawed vertebrates are telling us about antigen processing and peptide loading of MHC molecules. Curr Opin Immunol 2022; 77:102218. [PMID: 35687979 PMCID: PMC9586880 DOI: 10.1016/j.coi.2022.102218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/19/2022] [Accepted: 05/10/2022] [Indexed: 12/11/2022]
Abstract
The major histocompatibility complex (MHC) of mammals encodes highly polymorphic classical class I and class II molecules with crucial roles in immune responses, as well as various nonclassical molecules encoded by the MHC and elsewhere in the genome that have a variety of functions. These MHC molecules are supported by antigen processing and peptide loading pathways which are well-understood in mammals. This review considers what has been learned about the MHC, MHC molecules and the supporting pathways in non-mammalian jawed vertebrates. From the initial understanding from work with the chicken MHC, a great deal of diversity in the structure and function has been found. Are there underlying principles? The genomic organisation of the MHC varies enormously across jawed vertebrates. Total numbers of MHC genes vary among vertebrates, with only a few classical MHC genes. Some nonclassical MHC and classical pathway genes appear earlier than others. Obvious co-evolution within MHC pathways occurs in some species, but not others. The promiscuity of interactions may correlate with differences in genomic organisation.
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Halabi S, Kaufman J. New vistas unfold: Chicken MHC molecules reveal unexpected ways to present peptides to the immune system. Front Immunol 2022; 13:886672. [PMID: 35967451 PMCID: PMC9372762 DOI: 10.3389/fimmu.2022.886672] [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: 02/28/2022] [Accepted: 07/07/2022] [Indexed: 11/27/2022] Open
Abstract
The functions of a wide variety of molecules with structures similar to the classical class I and class II molecules encoded by the major histocompatibility complex (MHC) have been studied by biochemical and structural studies over decades, with many aspects for humans and mice now enshrined in textbooks as dogma. However, there is much variation of the MHC and MHC molecules among the other jawed vertebrates, understood in the most detail for the domestic chicken. Among the many unexpected features in chickens is the co-evolution between polymorphic TAP and tapasin genes with a dominantly-expressed class I gene based on a different genomic arrangement compared to typical mammals. Another important discovery was the hierarchy of class I alleles for a suite of properties including size of peptide repertoire, stability and cell surface expression level, which is also found in humans although not as extreme, and which led to the concept of generalists and specialists in response to infectious pathogens. Structural studies of chicken class I molecules have provided molecular explanations for the differences in peptide binding compared to typical mammals. These unexpected phenomena include the stringent binding with three anchor residues and acidic residues at the peptide C-terminus for fastidious alleles, and the remodelling binding sites, relaxed binding of anchor residues in broad hydrophobic pockets and extension at the peptide C-terminus for promiscuous alleles. The first few studies for chicken class II molecules have already uncovered unanticipated structural features, including an allele that binds peptides by a decamer core. It seems likely that the understanding of how MHC molecules bind and present peptides to lymphocytes will broaden considerably with further unexpected discoveries through biochemical and structural studies for chickens and other non-mammalian vertebrates.
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Affiliation(s)
- Samer Halabi
- Institute for Immunology and Infection Research, University of Edinburgh, Edinburgh, United Kingdom
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | - Jim Kaufman
- Institute for Immunology and Infection Research, University of Edinburgh, Edinburgh, United Kingdom
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
- Department of Veterinary Medicine, University of Cambridge, Cambridge, United Kingdom
- *Correspondence: Jim Kaufman,
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Jin Y, Li Y, Jiang L, Wang W, Zheng C, Chen M, Wu Y, Dai J, Chen J, Yu M, Zeng G, Hao M, Zeng B. The relationship between MHC−peptide interaction and resistance to virus in chickens. Immun Inflamm Dis 2022; 10:e596. [PMID: 35146947 PMCID: PMC8926493 DOI: 10.1002/iid3.596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/24/2022] [Accepted: 01/28/2022] [Indexed: 11/18/2022] Open
Abstract
Introduction The MHC‐peptide interaction has a subtle influence on host resistance to virus. This paper aims to study the relationship between MHC‐peptide interaction and MHC‐related virus‐resistance. Methods By 3D homology modeling, the structure of chicken BF2 molecule BF2*0201 (PDB code: 4d0d) was studied and compared with the known structures of BF2 molecule BF2*0401 (PDB code: 4e0r) to elucidate the characteristics of BF2*0201‐binding antigenic peptides. Results The results show that due to the amino acid difference between the two binding groove of 4e0r and 4d0d, the size of the binding groove of the two are 1130 ų and1380 ų respectively, indicating the amino acid species that 4e0r binding peptide has lower selectivity than 4d0d; and because of large side chain conformation of Arg (especially Arg111) of 4e0r replaced by small side chain Tyr111 of 4d0d, the volume of central part of the binding groove of 4d0d is obviously larger than that of 4e0r, indicating that the restrictive of binding antigenic peptides for 4d0d is narrower than that of 4e0r; and on account of the chargeability of the binding groove of the two are different, namely the binding groove chargeability of 4e0r (strong positive polarity) and 4d0d (weak negative polarity). Conclusion There are generally more peptides presented by the BF2 of B2 haplotype than by that of B4 haplotype, leading to more resistance of B2 than that of B4 to virus.
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Affiliation(s)
- Yuan‐chang Jin
- Characteristic Laboratory of Animal Resources Conservation and Utilization of Chishui River Basin, Department of Biology and Agriculture Zunyi Normal College Zunyi People's Republic of China
| | - Yu‐feng Li
- College of Agriculture and Food Engineering Baise University Baise People's Republic of China
| | - Li‐xia Jiang
- Characteristic Laboratory of Animal Resources Conservation and Utilization of Chishui River Basin, Department of Biology and Agriculture Zunyi Normal College Zunyi People's Republic of China
| | - Wei Wang
- School of Life Science Hunan University of Science and Technology Xiangtan People's Republic of China
| | - Chuan‐dan Zheng
- Characteristic Laboratory of Animal Resources Conservation and Utilization of Chishui River Basin, Department of Biology and Agriculture Zunyi Normal College Zunyi People's Republic of China
| | - Ming‐li Chen
- Characteristic Laboratory of Animal Resources Conservation and Utilization of Chishui River Basin, Department of Biology and Agriculture Zunyi Normal College Zunyi People's Republic of China
| | - Yu‐jie Wu
- Characteristic Laboratory of Animal Resources Conservation and Utilization of Chishui River Basin, Department of Biology and Agriculture Zunyi Normal College Zunyi People's Republic of China
| | - Juan Dai
- Characteristic Laboratory of Animal Resources Conservation and Utilization of Chishui River Basin, Department of Biology and Agriculture Zunyi Normal College Zunyi People's Republic of China
| | - Jing‐fen Chen
- Characteristic Laboratory of Animal Resources Conservation and Utilization of Chishui River Basin, Department of Biology and Agriculture Zunyi Normal College Zunyi People's Republic of China
| | - Min‐min Yu
- Characteristic Laboratory of Animal Resources Conservation and Utilization of Chishui River Basin, Department of Biology and Agriculture Zunyi Normal College Zunyi People's Republic of China
| | - Gang Zeng
- Characteristic Laboratory of Animal Resources Conservation and Utilization of Chishui River Basin, Department of Biology and Agriculture Zunyi Normal College Zunyi People's Republic of China
| | - Mei‐lin Hao
- Characteristic Laboratory of Animal Resources Conservation and Utilization of Chishui River Basin, Department of Biology and Agriculture Zunyi Normal College Zunyi People's Republic of China
| | - Bo‐ping Zeng
- Characteristic Laboratory of Animal Resources Conservation and Utilization of Chishui River Basin, Department of Biology and Agriculture Zunyi Normal College Zunyi People's Republic of China
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Jin Y, Wang W, Yu M, Hao M, Zeng G, Chen J, Dai J, Wu Y. Study on the contrast of the MHC–peptide interaction of B2/B21 haplotype and MHC‐related virus resistance in chickens. Immun Inflamm Dis 2021; 9:1670-1677. [PMID: 34473901 PMCID: PMC8589374 DOI: 10.1002/iid3.520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 08/16/2021] [Accepted: 08/18/2021] [Indexed: 01/05/2023] Open
Abstract
Introduction Methods Results Conclusion
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Affiliation(s)
- Yuan‐chang Jin
- College of Biology and Agriculture (College of Food Science and Technology) Zunyi Normal College Zunyi Guizhou China
| | - Wei Wang
- School of Life Science Hunan University of Science and Technology Xiangtan Hunan China
| | - Min‐min Yu
- College of Biology and Agriculture (College of Food Science and Technology) Zunyi Normal College Zunyi Guizhou China
| | - Mei‐lin Hao
- College of Biology and Agriculture (College of Food Science and Technology) Zunyi Normal College Zunyi Guizhou China
| | - Gang Zeng
- College of Biology and Agriculture (College of Food Science and Technology) Zunyi Normal College Zunyi Guizhou China
| | - Jing‐fen Chen
- College of Biology and Agriculture (College of Food Science and Technology) Zunyi Normal College Zunyi Guizhou China
| | - Juan Dai
- College of Biology and Agriculture (College of Food Science and Technology) Zunyi Normal College Zunyi Guizhou China
| | - Yu‐jie Wu
- College of Biology and Agriculture (College of Food Science and Technology) Zunyi Normal College Zunyi Guizhou China
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11
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Liu H, Zhao F, Zhang K, Zhao J, Wang Y. Investigating the growth performance, meat quality, immune function and proteomic profiles of plasmal exosomes in Lactobacillus plantarum-treated broilers with immunological stress. Food Funct 2021; 12:11790-11807. [PMID: 34761788 DOI: 10.1039/d1fo01936h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
Exosomes are extracellular membranous nanovesicles that carry functional molecules to mediate cell-to-cell communication. To date, whether probiotics improve the immune function of broilers by plasmal exosome cargo is unclear. In this study, 300 broilers were allocated to three treatments: control diet (CON group), control diet + dexamethasone injection (DEX group), and control diet containing 1 × 108 cfu g-1 P8 + DEX injection (P8 + DEX group). The growth performance, meat quality and immune function of plasma and jejunal mucosa were detected. Exosomes were isolated from the plasma and characterized. Then, the exosome protein profile was determined by proteomic analysis. Correlation analyses between the exosomal proteins and growth performance, meat quality, immune function were performed. Lastly, the related protein levels were verified by multiple reaction monitoring (MRM). Results showed that P8 treatment increased the growth performance, meat quality and immune function of DEX-induced broilers with immunological stress. Moreover, the average diameters, cup-shaped morphology and expressed exosomal proteins confirmed that the isolated extracellular vesicles were exosomes. A total of 784 proteins were identified in the exosomes; among which, 126 differentially expressed proteins (DEPs) were found between the DEX and CON groups and 102 DEPs were found between the P8 + DEX and DEX groups. Gene ontology analysis indicated that DEPs between the DEX and CON groups are mainly involved in the metabolic process, cellular anatomical entity, cytoplasm, etc. DEPs between the P8 + DEX and DEX groups are mainly involved in the multicellular organismal process, response to stimulus, cytoplasm, etc. Pathway analysis revealed that most of the DEPs between the DEX and CON groups participated in the ECM-receptor interaction, focal adhesion, regulation of actin cytoskeleton, etc. Most of the DEPs between the P8 + DEX and DEX groups participated in the ErbB and PPAR signaling pathways. Moreover, many DEPs were correlated with the altered parameters of growth performance, meat quality and immunity in P8-treated broilers. MRM further revealed that the upregulated FABP6 and EPCAM in the DEX group were decreased by P8 + DEX treatment, and the downregulated C1QTNF3 in the DEX group was increased by P8 + DEX treatment. In conclusion, our findings demonstrated that P8 may promote the immune function, growth performance and meat quality of broilers with immunological stress by regulating the plasma exosomal proteins, especially the proteins of FABP6, EPCAM and C1QTNF3 and the pathway of PPAR (ILK/FABP6).
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Affiliation(s)
- Huawei Liu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China.
| | - Fan Zhao
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China.
| | - Kai Zhang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China.
| | - Jinshan Zhao
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China.
| | - Yang Wang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China.
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12
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Schwartz JC, Maccari G, Heimeier D, Hammond JA. Highly-contiguous bovine genomes underpin accurate functional analyses and updated nomenclature of MHC class I. HLA 2021; 99:167-182. [PMID: 34802191 DOI: 10.1111/tan.14494] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/05/2021] [Accepted: 11/17/2021] [Indexed: 11/29/2022]
Abstract
The major histocompatibility complex (MHC) class I region of cattle is both highly polymorphic and, unlike many species, highly variable in gene content between haplotypes. Cattle MHC class I alleles were historically grouped by sequence similarity in the more conserved 3' end of the coding sequence to form phylogenetic allele groups. This has formed the basis of current cattle MHC class I nomenclature. We presently describe and compare five fully assembled MHC class I haplotypes using the latest cattle and yak genome assemblies. Of the five previously described "pseudogenes" in the cattle MHC class I region, Pseudogene 3 is putatively functional in all haplotypes and Pseudogene 6 and Pseudogene 7 are putatively functional in some haplotypes. This was reinforced by evidence of transcription. Based on full gene sequences as well as 3' coding sequence, we identified distinct subgroups of BoLA-3 and BoLA-6 that represent distinct genetic loci. We further examined allele-specific expression using transcriptomic data revealing that certain alleles are consistently weakly expressed compared to others. These observations will help to inform further studies into how MHC class I region variability influences T cell and natural killer cell functions in cattle.
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Affiliation(s)
| | - Giuseppe Maccari
- The Pirbright Institute, Pirbright, UK.,Anthony Nolan Research Institute, London, UK
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13
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Abstract
Compared to the major histocompatibility complex (MHC) of typical mammals, the chicken BF/BL region is small and simple, with most of the genes playing central roles in the adaptive immune response. However, some genes of the chicken MHC are almost certainly involved in innate immunity, such as the complement component C4 and the lectin-like receptor/ligand gene pair BNK and Blec. The poorly expressed classical class I molecule BF1 is known to be recognised by natural killer (NK) cells and, analogous to mammalian immune responses, the classical class I molecules BF1 and BF2, the CD1 homologs and the butyrophilin homologs called BG may be recognised by adaptive immune lymphocytes with semi-invariant receptors in a so-called adaptate manner. Moreover, the TRIM and BG regions next to the chicken MHC, along with the genetically unlinked Y and olfactory/scavenger receptor regions on the same chromosome, have multigene families almost certainly involved in innate and adaptate responses. On this chicken microchromosome, the simplicity of the adaptive immune gene systems contrasts with the complexity of the gene systems potentially involved in innate immunity.
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14
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Maekawa D, Riblet SM, Whang P, Hurley DJ, Garcia M. Activation of Cytotoxic Lymphocytes and Presence of Regulatory T Cells in the Trachea of Non-Vaccinated and Vaccinated Chickens as a Recall to an Infectious Laryngotracheitis Virus (ILTV) Challenge. Vaccines (Basel) 2021; 9:865. [PMID: 34451989 PMCID: PMC8402403 DOI: 10.3390/vaccines9080865] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/27/2021] [Accepted: 08/02/2021] [Indexed: 12/19/2022] Open
Abstract
While the protective efficacy of the infectious laryngotracheitis virus (ILTV) vaccines is well established, little is known about which components of the immune response are associated with effective resistance and vaccine protection. Early studies have pointed to the importance of the T cell-mediated immune responses. This study aimed to evaluate the activation of cytotoxic T lymphocytes (CTLs) and natural killer (NK) cells and to quantify the presence of regulatory T cells (Tregs) in the larynx-trachea of chickens vaccinated with chicken embryo origin (CEO), tissue culture origin (TCO) and recombinant Herpesvirus of Turkey-laryngotracheitis (rHVT-LT) vaccines after challenge. Our results indicated that CEO vaccine protection was characterized by early CTLs and activated CTLs enhanced responses. TCO and rHVT-LT protection were associated with a moderate increase in resting and activated CTLs followed by an enhanced NK cell response. Tregs increase was only detected in the non-vaccinated challenged group, probably to support healing of the severe trachea epithelial damage. Taken together, our results revealed main differences in the cellular immune responses elicited by CEO, TCO, and rHVT-LT vaccination in the upper respiratory tract after challenge, and that activated CTLs rather than NK cells play a main role in vaccine protection.
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Affiliation(s)
- Daniel Maekawa
- Poultry Diagnostic and Research Center, Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA; (D.M.); (S.M.R.); (P.W.)
| | - Sylva M. Riblet
- Poultry Diagnostic and Research Center, Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA; (D.M.); (S.M.R.); (P.W.)
| | - Patrick Whang
- Poultry Diagnostic and Research Center, Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA; (D.M.); (S.M.R.); (P.W.)
| | - David J. Hurley
- Food Animal Health and Management Program, Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA;
| | - Maricarmen Garcia
- Poultry Diagnostic and Research Center, Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA; (D.M.); (S.M.R.); (P.W.)
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15
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Tregaskes CA, Kaufman J. Chickens as a simple system for scientific discovery: The example of the MHC. Mol Immunol 2021; 135:12-20. [PMID: 33845329 PMCID: PMC7611830 DOI: 10.1016/j.molimm.2021.03.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/08/2021] [Accepted: 03/17/2021] [Indexed: 01/07/2023]
Abstract
Chickens have played many roles in human societies over thousands of years, most recently as an important model species for scientific discovery, particularly for embryology, virology and immunology. In the last few decades, biomedical models like mice have become the most important model organism for understanding the mechanisms of disease, but for the study of outbred populations, they have many limitations. Research on humans directly addresses many questions about disease, but frank experiments into mechanisms are limited by practicality and ethics. For research into all levels of disease simultaneously, chickens combine many of the advantages of humans and of mice, and could provide an independent, integrated and overarching system to validate and/or challenge the dogmas that have arisen from current biomedical research. Moreover, some important systems are simpler in chickens than in typical mammals. An example is the major histocompatibility complex (MHC) that encodes the classical MHC molecules, which play crucial roles in the innate and adaptive immune systems. Compared to the large and complex MHCs of typical mammals, the chicken MHC is compact and simple, with single dominantly-expressed MHC molecules that can determine the response to infectious pathogens. As a result, some fundamental principles have been easier to discover in chickens, with the importance of generalist and specialist MHC alleles being the latest example.
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Affiliation(s)
- Clive A Tregaskes
- University of Cambridge, Department of Pathology, Tennis Court Road, Cambridge, CB2 1QP, United Kingdom
| | - Jim Kaufman
- University of Cambridge, Department of Pathology, Tennis Court Road, Cambridge, CB2 1QP, United Kingdom; University of Edinburgh, Institute for Immunology and Infection Research, Ashworth Laboratories, Kings Buildings, Edinburgh, EH9 3FL, United Kingdom.
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16
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Kaufman J. From Chickens to Humans: The Importance of Peptide Repertoires for MHC Class I Alleles. Front Immunol 2020; 11:601089. [PMID: 33381122 PMCID: PMC7767893 DOI: 10.3389/fimmu.2020.601089] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 10/30/2020] [Indexed: 12/21/2022] Open
Abstract
In humans, killer immunoglobulin-like receptors (KIRs), expressed on natural killer (NK) and thymus-derived (T) cells, and their ligands, primarily the classical class I molecules of the major histocompatibility complex (MHC) expressed on nearly all cells, are both polymorphic. The variation of this receptor-ligand interaction, based on which alleles have been inherited, is known to play crucial roles in resistance to infectious disease, autoimmunity, and reproduction in humans. However, not all the variation in response is inherited, since KIR binding can be affected by a portion of the peptide bound to the class I molecules, with the particular peptide presented affecting the NK response. The extent to which the large multigene family of chicken immunoglobulin-like receptors (ChIRs) is involved in functions similar to KIRs is suspected but not proven. However, much is understood about the two MHC-I molecules encoded in the chicken MHC. The BF2 molecule is expressed at a high level and is thought to be the predominant ligand of cytotoxic T lymphocytes (CTLs), while the BF1 molecule is expressed at a much lower level if at all and is thought to be primarily a ligand for NK cells. Recently, a hierarchy of BF2 alleles with a suite of correlated properties has been defined, from those expressed at a high level on the cell surface but with a narrow range of bound peptides to those expressed at a lower level on the cell surface but with a very wide repertoire of bound peptides. Interestingly, there is a similar hierarchy for human class I alleles, although the hierarchy is not as wide. It is a question whether KIRs and ChIRs recognize class I molecules with bound peptide in a similar way, and whether fastidious to promiscuous hierarchy of class I molecules affect both T and NK cell function. Such effects might be different from those predicted by the similarities of peptide-binding based on peptide motifs, as enshrined in the idea of supertypes. Since the size of peptide repertoire can be very different for alleles with similar peptide motifs from the same supertype, the relative importance of these two properties may be testable.
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Affiliation(s)
- Jim Kaufman
- School of Biological Sciences, Institute for Immunology and Infection Research, University of Edinburgh, Edinburgh, United Kingdom.,Department of Pathology, University of Cambridge, Cambridge, United Kingdom
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17
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Yang Y, Dong M, Hao X, Qin A, Shang S. Revisiting cellular immune response to oncogenic Marek's disease virus: the rising of avian T-cell immunity. Cell Mol Life Sci 2020; 77:3103-3116. [PMID: 32080753 PMCID: PMC7391395 DOI: 10.1007/s00018-020-03477-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 02/06/2020] [Accepted: 02/07/2020] [Indexed: 12/21/2022]
Abstract
Marek's disease virus (MDV) is a highly oncogenic alphaherpesvirus that causes deadly T-cell lymphomas and serves as a natural virus-induced tumor model in chickens. Although Marek's disease (MD) is well controlled by current vaccines, the evolution of MDV field viruses towards increasing virulence is concerning as a better vaccine to combat very virulent plus MDV is still lacking. Our understanding of molecular and cellular immunity to MDV and its immunopathogenesis has significantly improved, but those findings about cellular immunity to MDV are largely out-of-date, hampering the development of more effective vaccines against MD. T-cell-mediated cellular immunity was thought to be of paramount importance against MDV. However, MDV also infects macrophages, B cells and T cells, leading to immunosuppression and T-cell lymphoma. Additionally, there is limited information about how uninfected immune cells respond to MDV infection or vaccination, specifically, the mechanisms by which T cells are activated and recognize MDV antigens and how the function and properties of activated T cells correlate with immune protection against MDV or MD tumor. The current review revisits the roles of each immune cell subset and its effector mechanisms in the host immune response to MDV infection or vaccination from the point of view of comparative immunology. We particularly emphasize areas of research requiring further investigation and provide useful information for rational design and development of novel MDV vaccines.
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Affiliation(s)
- Yi Yang
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China
| | - Maoli Dong
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Xiaoli Hao
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Aijian Qin
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China.
- International Corporation Laboratory of Agriculture and Agricultural Products Safety, Yangzhou University, Yangzhou, 225009, China.
- Ministry of Education Key Laboratory for Avian Preventive Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China.
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China.
| | - Shaobin Shang
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China.
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou, 225009, China.
- International Corporation Laboratory of Agriculture and Agricultural Products Safety, Yangzhou University, Yangzhou, 225009, China.
- Ministry of Education Key Laboratory for Avian Preventive Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China.
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18
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Boone AC, Käser T, Cortes AL, Kulkarni RR, López de Juan Abad BA, Villalobos T, Esandi J, Perozo F, Lemiere S, Gimeno IM. In ovo vaccination with herpesvirus of turkey enhances innate and cellular responses in meat-type chickens: Effect of vaccine dose and strain. Vaccine 2020; 38:4837-4845. [PMID: 32505441 DOI: 10.1016/j.vaccine.2020.05.050] [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: 02/13/2020] [Revised: 05/11/2020] [Accepted: 05/17/2020] [Indexed: 01/31/2023]
Abstract
In ovo vaccination with herpesvirus of turkey (HVT) or recombinant HVT (rHVT) is commonly used in meat-type chickens. Previous studies showed that in ovo vaccination with HVT enhances innate, cellular, and humoral immune responses in egg-type chicken embryos. This study evaluated if in ovo vaccination with HVT hastens immunocompetence of commercial meat-type chickens and optimized vaccination variables (dose and strain of HVT) to accelerate immunocompetence. A conventional HVT vaccine was given at recommended dose (RD), HVT-RD = 6080 plaque forming units (PFU), double-dose (2x), half-dose (1/2), or quarter-dose (1/4). Two rHVTs were given at RD: rHVT-A = 7380 PFU, rHVT-B = 8993 PFU. Most, if not all, treatments enhanced splenic lymphoproliferation with Concanavalin A and increased the percentage of granulocytes at day of age. Dose had an effect and HVT-RD was ideal. An increase of wing-web thickness after exposure to phytohemagglutinin-L was only detected after vaccination with HVT-RD. Furthermore, compared to sham-inoculated chickens, chickens in the HVT-RD had an increased percentage of CD3+ T cells and CD4+ T-helper cells, and increased expression of major histocompatibility complex (MHC)-II on most cell subsets (CD45+ cells, non-T leukocytes, T cells and the CD8+ and T cell receptor γδ T-cell subsets). Other treatments (HVT-1/2 and rHVT-B) share some of these features but differences were not as remarkable as in the HVT-RD group. Expression of MHC-I was reduced, compared to sham-inoculated chickens, in most of the cell phenotypes evaluated in the HVT-RD, HVT-2x and rHVT-A groups, while no effect was observed in other treatments. The effect of in ovo HVT on humoral immune responses (antibody responses to keyhole limpet hemocyanin and to a live infectious bronchitis/Newcastle disease vaccine) was minimal. Our study demonstrates in ovo vaccination with HVT in meat-type chickens can accelerate innate and adaptive immunity and we could optimize such effect by modifying the vaccine dose.
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Affiliation(s)
- Allison C Boone
- North Carolina State University, College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, NC 27607, United States; Rollins Animal Disease Diagnostic Laboratory, 2101 Blue Ridge Road, Raleigh, NC 27607, United States.
| | - Tobias Käser
- North Carolina State University, College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, NC 27607, United States.
| | - Aneg L Cortes
- North Carolina State University, College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, NC 27607, United States.
| | - Raveendra R Kulkarni
- North Carolina State University, College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, NC 27607, United States.
| | - Blanca A López de Juan Abad
- North Carolina State University, College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, NC 27607, United States.
| | - Tarsicio Villalobos
- Zoetis-International Biodevices and Automation, 1040 Swabia Ct, Durham, NC 27703, United States.
| | - Javier Esandi
- Zoetis-International Biodevices and Automation, 1040 Swabia Ct, Durham, NC 27703, United States.
| | - Francisco Perozo
- Boehringer Ingelheim Animal Health, Binger Strasse 173, 55216 Ingelheim, Germany.
| | - Stephane Lemiere
- Boehringer Ingelheim Animal Health, Binger Strasse 173, 55216 Ingelheim, Germany.
| | - Isabel M Gimeno
- North Carolina State University, College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, NC 27607, United States.
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19
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Almeida T, Esteves PJ, Flajnik MF, Ohta Y, Veríssimo A. An Ancient, MHC-Linked, Nonclassical Class I Lineage in Cartilaginous Fish. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2020; 204:892-902. [PMID: 31932500 PMCID: PMC7002201 DOI: 10.4049/jimmunol.1901025] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 12/05/2019] [Indexed: 01/08/2023]
Abstract
Cartilaginous fishes, or chondrichthyans, are the oldest jawed vertebrates that have an adaptive immune system based on the MHC and Ig superfamily-based AgR. In this basal group of jawed vertebrates, we identified a third nonclassical MHC class I lineage (UDA), which is present in all species analyzed within the two major cartilaginous subclasses, Holocephali (chimaeras) and Elasmobranchii (sharks, skates, and rays). The deduced amino acid sequences of UDA have eight out of nine typically invariant residues that bind to the N and C termini of bound peptide found in most vertebrae classical class I (UAA); additionally, the other predicted 28 peptide-binding residues are perfectly conserved in all elasmobranch UDA sequences. UDA is distinct from UAA in its differential tissue distribution and its lower expression levels and is mono- or oligomorphic unlike the highly polymorphic UAA UDA has a low copy number in elasmobranchs but is multicopy in the holocephalan spotted ratfish (Hydrolagus colliei). Using a nurse shark (Ginglymostoma cirratum) family, we found that UDA is MHC linked but separable by recombination from the tightly linked cluster of UAA, TAP, and LMP genes, the so-called class I region found in most nonmammalian vertebrates. UDA has predicted structural features that are similar to certain nonclassical class I genes in other vertebrates, and, unlike polymorpic classical class I, we anticipate that it may bind to a conserved set of specialized peptides.
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Affiliation(s)
- Tereza Almeida
- CIBIO-InBIO, Centro de Investigacão em Biodiversidade e Recursos Genéticos, Universidade do Porto, 4485-661 Vairão, Porto, Portugal
- Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, 4169-007 Porto, Portugal
- Department of Microbiology and Immunology, University of Maryland, Baltimore, Baltimore, MD 21201; and
| | - Pedro J Esteves
- CIBIO-InBIO, Centro de Investigacão em Biodiversidade e Recursos Genéticos, Universidade do Porto, 4485-661 Vairão, Porto, Portugal
- Departamento de Biologia, Faculdade de Ciências da Universidade do Porto, 4169-007 Porto, Portugal
| | - Martin F Flajnik
- Department of Microbiology and Immunology, University of Maryland, Baltimore, Baltimore, MD 21201; and
| | - Yuko Ohta
- Department of Microbiology and Immunology, University of Maryland, Baltimore, Baltimore, MD 21201; and
| | - Ana Veríssimo
- CIBIO-InBIO, Centro de Investigacão em Biodiversidade e Recursos Genéticos, Universidade do Porto, 4485-661 Vairão, Porto, Portugal
- Virginia Institute of Marine Science, William & Mary, Gloucester Point, VA 23062
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20
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Potts ND, Bichet C, Merat L, Guitton E, Krupa AP, Burke TA, Kennedy LJ, Sorci G, Kaufman J. Development and optimization of a hybridization technique to type the classical class I and class II B genes of the chicken MHC. Immunogenetics 2019; 71:647-663. [PMID: 31761978 PMCID: PMC6900278 DOI: 10.1007/s00251-019-01149-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 11/17/2019] [Indexed: 01/02/2023]
Abstract
The classical class I and class II molecules of the major histocompatibility complex (MHC) play crucial roles in immune responses to infectious pathogens and vaccines as well as being important for autoimmunity, allergy, cancer and reproduction. These classical MHC genes are the most polymorphic known, with roughly 10,000 alleles in humans. In chickens, the MHC (also known as the BF-BL region) determines decisive resistance and susceptibility to infectious pathogens, but relatively few MHC alleles and haplotypes have been described in any detail. We describe a typing protocol for classical chicken class I (BF) and class II B (BLB) genes based on a hybridization method called reference strand-mediated conformational analysis (RSCA). We optimize the various steps, validate the analysis using well-characterized chicken MHC haplotypes, apply the system to type some experimental lines and discover a new chicken class I allele. This work establishes a basis for typing the MHC genes of chickens worldwide and provides an opportunity to correlate with microsatellite and with single nucleotide polymorphism (SNP) typing for approaches involving imputation.
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Affiliation(s)
- Nicola D Potts
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QP, UK.,LGC Ltd., Newmarket Road, Fordham, Ely, CB7 5WW, UK
| | - Coraline Bichet
- BioGéoSciences, CNRS UMR 5561, Université de Bourgogne Franche-Comté, 6 Boulevard Gabriel, 21000, Dijon, France.,Institute of Avian Research, An der Vogelwarte 21, 26386, Wilhelmshaven, Germany
| | - Laurence Merat
- Plate-Forme d'Infectiologie Expérimentale (PFIE), UE-1277, INRA Centre Val de Loire, 37380, Nouzilly, France
| | - Edouard Guitton
- Plate-Forme d'Infectiologie Expérimentale (PFIE), UE-1277, INRA Centre Val de Loire, 37380, Nouzilly, France
| | - Andrew P Krupa
- Department of Animal and Plant Sciences, University of Sheffield, Western Bank, S10 2TN, Sheffield, UK
| | - Terry A Burke
- Department of Animal and Plant Sciences, University of Sheffield, Western Bank, S10 2TN, Sheffield, UK
| | - Lorna J Kennedy
- Division of Population Health, Health Services Research & Primary Care, University of Manchester, Oxford Road, M13 9PL, Manchester, UK
| | - Gabriele Sorci
- BioGéoSciences, CNRS UMR 5561, Université de Bourgogne Franche-Comté, 6 Boulevard Gabriel, 21000, Dijon, France
| | - Jim Kaufman
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QP, UK. .,Department of Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge, CB3 0ES, UK.
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21
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Afrache H, Tregaskes CA, Kaufman J. A potential nomenclature for the Immuno Polymorphism Database (IPD) of chicken MHC genes: progress and problems. Immunogenetics 2019; 72:9-24. [PMID: 31741010 PMCID: PMC6971145 DOI: 10.1007/s00251-019-01145-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 10/20/2019] [Indexed: 12/25/2022]
Abstract
Among the genes with the highest allelic polymorphism and sequence diversity are those encoding the classical class I and class II molecules of the major histocompatibility complex (MHC). Although many thousands of MHC sequences have been deposited in general sequence databases like GenBank, the availability of curated MHC sequences with agreed nomenclature has been enormously beneficial. Along with the Immuno Polymorphism Database-IMunoGeneTics/human leukocyte antigen (IPD-IMGT/HLA) database, a collection of databases for curated sequences of immune importance has been developed. A recent addition is an IPD-MHC database for chickens. For many years, the nomenclature system for chicken MHC genes has been based on a list of standard, presumed to be stable, haplotypes. However, these standard haplotypes give different names to identical sequences. Moreover, the discovery of new recombinants between haplotypes and a rapid increase in newly discovered alleles leaves the old system untenable. In this review, a new nomenclature is considered, for which alleles of different loci are given names based on the system used for other MHCs, and then haplotypes are named according to the alleles present. The new nomenclature system is trialled, first with standard haplotypes and then with validated sequences from the scientific literature. In the trial, some class II B sequences were found in both class II loci, presumably by gene conversion or inversion, so that identical sequences would receive different names. This situation prompts further suggestions to the new nomenclature system. In summary, there has been progress, but also problems, with the new IPD-MHC system for chickens.
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Affiliation(s)
- Hassnae Afrache
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QP, UK
| | - Clive A Tregaskes
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QP, UK
| | - Jim Kaufman
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QP, UK. .,Department of Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge, CB2 0ES, UK.
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22
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Meziane EK, Potts ND, Viertlboeck BC, Løvlie H, Krupa AP, Burke TA, Brown S, Watson KA, Richardson DS, Pizzari T, Göbel TW, Kaufman J. Bi-Functional Chicken Immunoglobulin-Like Receptors With a Single Extracellular Domain (ChIR-AB1): Potential Framework Genes Among a Relatively Stable Number of Genes Per Haplotype. Front Immunol 2019; 10:2222. [PMID: 31620133 PMCID: PMC6760009 DOI: 10.3389/fimmu.2019.02222] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 09/02/2019] [Indexed: 11/13/2022] Open
Abstract
The leukocyte receptor complex (LRC) in humans encodes many receptors with immunoglobulin-like (Ig-like) extracellular domains, including the killer Ig-like receptors (KIRs) expressed on natural killer (NK) cells among others, the leukocyte Ig-like receptors (LILRs) expressed on myeloid and B cells, and an Fc receptor (FcR), all of which have important roles in the immune response. These highly-related genes encode activating receptors with positively-charged residues in the transmembrane region, inhibitory receptors with immuno-tyrosine based motifs (ITIMs) in the cytoplasmic tail, and bi-functional receptors with both. The related chicken Ig-like receptors (ChIRs) are almost all found together on a microchromosome, with over 100 activating (A), inhibitory (B), and bi-functional (AB) genes, bearing either one or two extracellular Ig-like domains, interspersed over 500-1,000 kB in the genome of an individual chicken. Sequencing studies have suggested rapid divergence and little overlap between ChIR haplotypes, so we wished to begin to understand their genetics. We chose to use a hybridization technique, reference strand-mediated conformational analysis (RSCA), to examine the ChIR-AB1 family, with a moderate number of genes dispersed across the microchromosome. Using fluorescently-labeled references (FLR), we found that RSCA and sequencing of ChIR-AB1 extracellular exon gave two groups of peaks with mobility correlated with sequence relationship to the FLR. We used this system to examine widely-used and well-characterized experimental chicken lines, finding only one or a few simple ChIR haplotypes for each line, with similar numbers of peaks overall. We found much more complicated patterns from a broiler line from a commercial breeder and a flock of red junglefowl, but trios of parents and offspring from another commercial chicken line show that the complicated patterns are due to heterozygosity, indicating a relatively stable number of peaks within haplotypes of these birds. Some ChIR-AB1 peaks were found in all individuals from the commercial lines, and some of these were shared with red junglefowl and the experimental lines derived originally from egg-laying chickens. Overall, this analysis suggests that there are some simple features underlying the apparent complexity of the ChIR locus.
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Affiliation(s)
- El Kahina Meziane
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | - Nicola D Potts
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | - Birgit C Viertlboeck
- Department of Veterinary Sciences, Institute for Animal Physiology, Ludwig Maximillian University, Munich, Germany
| | - Hanne Løvlie
- Department of Physics, Chemistry and Biology, IFM Biology, Linköping University, Linköping, Sweden
| | - Andrew P Krupa
- Department of Animal and Plant Sciences, Western Bank, University of Sheffield, Sheffield, United Kingdom
| | - Terry A Burke
- Department of Animal and Plant Sciences, Western Bank, University of Sheffield, Sheffield, United Kingdom
| | | | - Kellie A Watson
- The Roslin Institute and R(D)SVS, University of Edinburgh, Midlothian, United Kingdom
| | - David S Richardson
- Centre for Ecology, Evolution and Conservation, School of Biological Sciences, University of East Anglia, University of East Anglia, Norwich, United Kingdom
| | - Tommaso Pizzari
- Department of Zoology, Edward Grey Institute, University of Oxford, Oxford, United Kingdom
| | - Thomas W Göbel
- Department of Veterinary Sciences, Institute for Animal Physiology, Ludwig Maximillian University, Munich, Germany
| | - Jim Kaufman
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom.,Department of Veterinary Medicine, University of Cambridge, Cambridge, United Kingdom
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23
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Gimeno IM, Cortes AL, Reddy SM, López de Juan Abad B, Käser T, Limsatanun A. Highly virulent Marek's disease virus strains affect T lymphocyte function and viability of splenocytes in commercial meat-type chickens. Avian Pathol 2019; 48:564-572. [PMID: 31294636 DOI: 10.1080/03079457.2019.1643451] [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] [Indexed: 10/26/2022]
Abstract
In previous studies, we have demonstrated that very virulent plus Marek's disease viruses (vv+MDV) are highly immunosuppressive in commercial meat-type chickens. The specific objectives of this work were to evaluate if vv+MDV immunosuppression (MDV-IS) is induced by reduction of lymphocyte responsiveness and/or viability. Three experiments were conducted to (i) compare vv+MDV 686 with a partially attenuated 686-BAC; (ii) compare vv+MDV strains (648A and 686) with vMDV (GA) and vvMDV (Md5); and (iii) compare chickens vaccinated with Md5-BACΔMEQ and with CVI988 + HVT. In each experiment, spleens were collected at 28-30 days post infection and lymphocytes were isolated and investigated in three ways: their proliferative response to Concanavalin A (ConA) was analysed by MTT proliferation assay; cell death, and expression of CD45 and MHC-I was studied by flow cytometry; and MHC-IA and β-2 microglobulin (B2M) expression was evaluated by real time RT-PCR. Splenocytes of chickens inoculated with vv+MDV were severely impaired to proliferate when exposed to ConA. Furthermore, vv+MDV induced severe splenocyte death that did not occur after infection with v or vvMDV strains. Vaccination with CVI988 + HVT, and at less level with Md5-BACΔMEQ reduced these negative effects. This is in contrast to our previous results in which Md5-BACΔMEQ but not CVI988 + HVT protected against MDV-IS suggesting that although cell death and decrease lymphocyte function seem to be related to MDV virulence and certainly will be associated with immunosuppression, they might not fully explain the previously reported MDV-IS. RESEARCH HIGHLIGHTS vv+MDV induces extensive death in splenocytes in meat-type chickens 28-30 dpi. vv+MDV impairs lymphocyte function in meat-type chickens 28-30 dpi. Vaccination protects against splenocyte death and reduced lymphocyte function. Cell lysis and reduced lymphocyte function do not fully explain MDV-IS.
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Affiliation(s)
- I M Gimeno
- Department of Population Health and Pathobiology, Veterinary School, North Carolina State University , Raleigh , NC , USA
| | - A L Cortes
- Department of Population Health and Pathobiology, Veterinary School, North Carolina State University , Raleigh , NC , USA
| | - S M Reddy
- College of Veterinary Medicine & Biomedical Sciences, Texas A&M University , College Station , TX , USA
| | - B López de Juan Abad
- Department of Population Health and Pathobiology, Veterinary School, North Carolina State University , Raleigh , NC , USA
| | - T Käser
- Department of Population Health and Pathobiology, Veterinary School, North Carolina State University , Raleigh , NC , USA
| | - A Limsatanun
- Department of Population Health and Pathobiology, Veterinary School, North Carolina State University , Raleigh , NC , USA.,Faculty of Veterinary Science, Prince of Songkla University , Hat Yai, Kho Hong, Songhkla , Thailand
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