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Xu H, Wang Z, Li Y, Xu Z. The distribution and function of teleost IgT. FISH & SHELLFISH IMMUNOLOGY 2024; 144:109281. [PMID: 38092093 DOI: 10.1016/j.fsi.2023.109281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 12/20/2023]
Abstract
Given the uniquely close relationship between fish and aquatic environments, fish mucosal tissues are constantly exposed to a wide array of pathogenic microorganisms in the surrounding water. To maintain mucosal homeostasis, fish have evolved a distinct mucosal immune system known as mucosal-associated lymphoid tissues (MALTs). These MALTs consist of key effector cells and molecules from the adaptive immune system, such as B cells and immunoglobulins (Igs), which play crucial roles in maintaining mucosal homeostasis and defending against external pathogen infections. Until recently, three primary Ig isotypes, IgM, IgD, and IgT, have been identified in varying proportions within the mucosal secretions of teleost fish. Similar to the role of mucosal IgA in mammals and birds, teleost IgT plays a predominant role in mucosal immunity. Following the identification of the IgT gene in 2005, significant advances have been made in researching the origin, evolution, structure, and function of teleost IgT. Multiple IgT variants have been identified in various species of teleost fish, underscoring the remarkable complexity of IgT in fish. Therefore, this study provides a comprehensive review of the recent advances in various aspects of teleost IgT, including its genomic and structural features, the diverse distribution patterns within various fish mucosal tissues (the skin, gills, gut, nasal, buccal, pharyngeal, and swim bladder mucosa), its interaction with mucosal symbiotic microorganisms, and its immune responses towards diverse pathogens, including bacteria, viruses, and parasites. We also highlight the existing research gaps in the study of teleost IgT, suggesting the need for further investigation into the functional aspects of IgT and IgT+ B cells. This research is aimed at providing valuable insights into the immune functions of IgT and the mechanisms underlying the immune responses of fish against infections.
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Affiliation(s)
- Haoyue Xu
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zixuan Wang
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuqing Li
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhen Xu
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
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2
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Bela-Ong DB, Thompson KD, Kim HJ, Park SB, Jung TS. CD4 + T lymphocyte responses to viruses and virus-relevant stimuli in teleost fish. FISH & SHELLFISH IMMUNOLOGY 2023; 142:109007. [PMID: 37625734 DOI: 10.1016/j.fsi.2023.109007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/31/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023]
Abstract
Fish diseases caused by viruses are a major threat to aquaculture. Development of disease protection strategies for sustainable fish aquaculture requires a better understanding of the immune mechanisms involved in antiviral defence. The innate and adaptive arms of the vertebrate immune system collaborate to mount an effective defence against viral pathogens. The T lymphocyte components of the adaptive immune system, comprising two major classes (helper T, Th or CD4+ and cytotoxic T lymphocytes, CTLs or CD8+ T cells), are responsible for cell-mediated immune responses. In particular, CD4+ T cells and their different subsets orchestrate the actions of various other immune cells during immune responses, making CD4+ T cells central drivers of responses to pathogens and vaccines. CD4+ T cells are also present in teleost fish. Here we review the literature that reported the use of antibodies against CD4 in a few teleost fish species and transcription profiling of Th cell-relevant genes in the context of viral infections and virus-relevant immunomodulation. Studies reveal massive CD4+ T cell proliferation and expression of key cytokines, transcription factors, and effector molecules that evoke mammalian Th cell responses. We also discuss gaps in the current understanding and evaluation of teleost CD4+ T cell responses and how development and application of novel tools and approaches to interrogate such responses could bridge these gaps. A greater understanding of fish Th cell responses will further illuminate the evolution of vertebrate adaptive immunity, inform strategies to address viral infections in aquaculture, and could further foster fish as model organisms.
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Affiliation(s)
- Dennis Berbulla Bela-Ong
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501 Jinju-daero, Jinju-si, Gyeongsangnam-do, 52828, Republic of Korea.
| | - Kim D Thompson
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, Scotland, United Kingdom
| | - Hyoung Jun Kim
- WOAH Reference Laboratory for VHS, National Institute of Fisheries Science, Busan, 46083, Republic of Korea
| | - Seong Bin Park
- Coastal Research and Extension Center, Mississippi State University, Pascagula, MS, 39567, USA
| | - Tae Sung Jung
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501 Jinju-daero, Jinju-si, Gyeongsangnam-do, 52828, Republic of Korea.
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3
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Kasprzak R, Zakęś Z, Kamaszewski M, Szudrowicz H, Wiechetek W, Janusz JR, Ostaszewska T, Korzelecka-Orkisz A, Formicki K. Histomorphometric evaluation of melanomacrophage centers (MMCs) and CD3 + T cells of two morphs of brown trout (Salmo trutta) fed diets with immunostimulants. FISH & SHELLFISH IMMUNOLOGY 2023; 141:109020. [PMID: 37611835 DOI: 10.1016/j.fsi.2023.109020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/25/2023] [Accepted: 08/20/2023] [Indexed: 08/25/2023]
Abstract
The brown trout (Salmo trutta) is a salmonid residing in riverine and coastal waters throughout the Northern Hemisphere, whose various populations evolved into distinct ecological morphs, differing in their migratory tendencies and preferred habitats. Unfortunately, due to progressing degradation of natural environment, the conservation of these populations is of growing importance and is undoubtedly a challenging task. Therefore, various means to refine the preparatory protocols for restocking using hatchery-reared fish are being pursued, some of which involve the administration of immunity-boosting substances. The current study assessed the effects of two dietary immunostimulants: Bioimmuno (4% inosine pranobex and 96% β-glucan) and Focus Plus (commercial preparation by Biomar, Denmark) on two morphs of the brown trout - the river trout (S. trutta morpha fario) and the sea trout (S. trutta morpha trutta). Tissue samples were obtained from ∼75 to 100g fish after 0, 2 and 4 weeks of experimental feeding. Multi-factorial analysis of conducted histological measurements of melanomacrophage centers (MMCs) revealed no changes of their parameters within spleens, but showed a decrease of the occupied tissue area and MMC counts in the livers, progressing with time regardless of the applied diet. Immunohistochemical analysis of CD3+ T cells showed their increased recruitment into mucosal folds of pyloric caeca in the 2-week sampling of trouts fed with the diet with 2% Bioimmuno addition, but this effect was not present in the 4-week sampling. When studying all groups jointly within each morph, there was a significant difference in terms of maintained CD3+ T cells levels, as sea trouts showed significantly higher tissue areas occupied by these cells than river trouts, both in the pyloric caeca and hepatic parenchyma. The study revealed that feeding with a diet enriched with Bioimmuno for 2 weeks may be a favorable enhancement of rearing protocols of brown trout stocks prior to their release, but more studies need to be conducted to test the possibility of an even shorter feeding period.
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Affiliation(s)
- Robert Kasprzak
- Department of Ichthyology and Biotechnology in Aquaculture, Institute of Animal Sciences, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786, Warsaw, Poland.
| | - Zdzisław Zakęś
- Department of Aquaculture, The Stanisław Sakowicz Inland Fisheries Institute, Oczapowskiego 10, 10-719, Olsztyn, Poland.
| | - Maciej Kamaszewski
- Department of Ichthyology and Biotechnology in Aquaculture, Institute of Animal Sciences, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786, Warsaw, Poland.
| | - Hubert Szudrowicz
- Department of Ichthyology and Biotechnology in Aquaculture, Institute of Animal Sciences, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786, Warsaw, Poland.
| | - Wiktoria Wiechetek
- Department of Ichthyology and Biotechnology in Aquaculture, Institute of Animal Sciences, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786, Warsaw, Poland.
| | - Julia Renata Janusz
- Department of Ichthyology and Biotechnology in Aquaculture, Institute of Animal Sciences, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786, Warsaw, Poland.
| | - Teresa Ostaszewska
- Department of Ichthyology and Biotechnology in Aquaculture, Institute of Animal Sciences, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786, Warsaw, Poland.
| | - Agata Korzelecka-Orkisz
- Department of Hydrobiology, Ichthyology and Reproduction Biotechnology, Faculty of Food Science and Fisheries, West Pomeranian University of Technology in Szczecin, Kazimierza Królewicza 4, 71-550, Szczecin, Poland.
| | - Krzysztof Formicki
- Department of Hydrobiology, Ichthyology and Reproduction Biotechnology, Faculty of Food Science and Fisheries, West Pomeranian University of Technology in Szczecin, Kazimierza Królewicza 4, 71-550, Szczecin, Poland.
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Cao J, Xu H, Yu Y, Xu Z. Regulatory roles of cytokines in T and B lymphocytes-mediated immunity in teleost fish. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2023; 144:104621. [PMID: 36801469 DOI: 10.1016/j.dci.2022.104621] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 06/05/2023]
Abstract
T and B lymphocytes (T and B cells) are immune effector cells that play critical roles in adaptive immunity and defend against external pathogens in most vertebrates, including teleost fish. In mammals, the development and immune response of T and B cells is associated with cytokines including chemokines, interferons, interleukins, lymphokines, and tumor necrosis factors during pathogenic invasion or immunization. Given that teleost fish have evolved a similar adaptive immune system to mammals with T and B cells bearing unique receptors (B-cell receptors (BCRs) and T-cell receptors (TCRs)) and that cytokines in general have been identified, whether the regulatory roles of cytokines in T and B cell-mediated immunity are evolutionarily conserved between mammalians and teleost fish is a fascinating question. Thus, the purpose of this review is to summarize the current knowledge of teleost cytokines and T and B cells as well as the regulatory roles of cytokines on these two types of lymphocytes. This may provide important information on the parallelisms and dissimilarities of the functions of cytokines in bony fish versus higher vertebrates, which may aid in the evaluation and development of adaptive immunity-based vaccines or immunostimulants.
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Affiliation(s)
- Jiafeng Cao
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Haoyue Xu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Yongyao Yu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Zhen Xu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China.
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5
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Zhang Z, Niu J, Li Q, Huang Y, Jiang B, Li X, Jian J, Huang Y. A novel C-type lectin (CLEC12B) from Nile tilapia (Oreochromis niloticus) is involved in host defense against bacterial infection. FISH & SHELLFISH IMMUNOLOGY 2022; 131:218-228. [PMID: 36198379 DOI: 10.1016/j.fsi.2022.09.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/17/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
C-type lectin (CLEC) is a family of carbohydrate-binding protein that has high affinity for calcium and mediates multiple biological events including adhesion between cells, the turnover of serum glycoproteins, and the innate immune system's reaction to prospective invaders. However, it's ill-defined for how CLEC effects bony fish's innate immunity to bacterial infection. Therefore, CLEC12B, a member of the C-type lectin domain family, was found in Nile tilapia (Oreochromis niloticus) and its functions in bacterial infection were examined. The OnCLEC12B consist of a C-type lectin domain, a transmembrane domain, and a hypothetical protein of 308 amino acids that encoded by 927 bp basic group. Besides, the OnCLEC12B protein have a series of highly conserved amino acid sites with other CLEC12B proteins. Subcellular localization showed that OnCLEC12B located in cell membrane. Transcriptional levels investigation showed that OnCLEC12B was extensively expressed in all selected organs and has high expression in the liver. The transcriptional levels of OnCLEC12B were induced by Streptococcus agalactiae and Aeromonas hydrophila in the liver, spleen, head kidney, brain, and intestine. Afterward, invitro study revealed that several kinds of pathogens could be bound and agglutinated by recombinant protein of OnCLEC12B (rOnCLEC12B). Moreover, rOnCLEC12B could not only promote the proliferation of monocytes/macrophages but also encourage its phagocytosis on S.agalactiae and A.hydrophila, and its over-expression could significantly suppress the activation of the NF-κB pathway. Summarily, our results indicated that OnCLEC12B gets involved in fish immunization activities to pathogens infection.
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Affiliation(s)
- Zhiqiang Zhang
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Jinzhong Niu
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China
| | - Qi Li
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China
| | - Yongxiong Huang
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China
| | - Baijian Jiang
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China
| | - Xing Li
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China
| | - Jichang Jian
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen, China
| | - Yu Huang
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen, China.
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6
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Roh H, Park J, Park J, Kim BS, Park CI, Kim DH. Identification and characterization of warm temperature acclimation proteins (Wap65s) in rainbow trout (Oncorhynchus mykiss). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 135:104475. [PMID: 35732223 DOI: 10.1016/j.dci.2022.104475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 06/05/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Hemopexin is a vital glycoprotein for processing excessive iron in blood and functions as an iron scavenger in mammals. Teleosts however, unlike mammals, have two known hemopexin paralogs called warm temperature acclimation-related 65 kDa protein (Wap65-1 and Wap65-2, collectively termed Wap65s). Although Wap65s in rainbow trout have been considered notable biomarkers with significantly higher and/or lower expression under conditions of stress or disease, the individual roles, similarities and differences between the two paralogs are not well known. The aim of this study was to gain an understanding of the characteristics and functions of trout Wap65s from the perspective of iron-metabolism, physiological roles, and relevant immunological responses. The expression of Wap65-1 and -2 in this study was determined in the face of challenges by Aeromonas salmonicida, infectious hematopoietic necrosis virus (IHNV), and iron-dextran. Immuno-histochemistry (IHC) was employed to localize the major cell types for Wap65-2 expression, and trout leukocytes were isolated and incubated with LPS and OxLDL for comprehending the immunological characteristics of Wap65-2. We demonstrate that Wap65-1 is expressed only in the liver but Wap65-2 is systemically expressed in most organs and tissues. Interestingly, Wap65-1 expression was not significantly changed under A. salmonicida and iron-dextran administration, but was significantly decreased under IHNV. In contrast, Wap65-2 was up-regulated in all challenged groups, however with different expression patterns in the blood and liver. These results suggested that the two paralogs may participate in different biological roles. IHC showed that Wap65-2 antibody had high affinity for leukocyte-like cells, and macrophages but not lymphocytes significantly increased expression under LPS and OxLDL stimulation. These results support the conclusion that trout Wap65-2, not Wap65-1 may have conventional hemopexin functions such as reported in mammals including effects on iron metabolism, inflammation, and acute-phase protein.
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Affiliation(s)
- HyeongJin Roh
- Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University, 45, Yongso-ro, Nam-Gu, Busan, Republic of Korea
| | - Junewoo Park
- Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University, 45, Yongso-ro, Nam-Gu, Busan, Republic of Korea
| | - Jiyeon Park
- Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University, 45, Yongso-ro, Nam-Gu, Busan, Republic of Korea
| | - Bo-Seong Kim
- Department of Aquatic Life Medicine, College of Ocean Science and Technology, Kunsan National University, 558 Daehak-ro, Gunsan, 54150, Republic of Korea
| | - Chan-Il Park
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, 455, Tongyeong, 650-160, Republic of Korea.
| | - Do-Hyung Kim
- Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University, 45, Yongso-ro, Nam-Gu, Busan, Republic of Korea.
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Bledsoe JW, Ma J, Cain K, Bruce TJ, Rawles A, Abernathy J, Welker T, Overturf K. Multi-tissue RNAseq reveals genetic and temporal differences in acute response to viral (IHNV) infection among three selected lines of rainbow trout with varying resistance. FISH & SHELLFISH IMMUNOLOGY 2022; 124:343-361. [PMID: 35398222 DOI: 10.1016/j.fsi.2022.03.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 06/14/2023]
Abstract
Utilizing RNA-seq, this study compared the transcriptomic responses of three improved strains (VSel, PSel, and CSel) of rainbow trout fry during acute stages of challenge with infectious hematopoietic necrosis virus (IHNV). The VSel strain has been selected for resistance against the specific strain of IHNV used in our challenge, PSel has undergone selection for utilization of plant-protein based feeds and previously has shown elevated non-specific disease resistance despite no disease related selection pressures, and the final strain, CSel, is a commercial strain that has been domesticated for several years but has not been selected for specific viral disease resistance. Following a 21-day IHNV challenge, Kaplan-Meier survival estimator curves and cumulative percent mortality (CPM) showed significant differences in IHNV resistance across strains: VSel - 19.3 ± 5.0%, PSel - 67. ± 3.03%, CSel - 94.6 ± 4.1% CPM. To evaluate acute responses to IHNV infection, whole blood, as well as samples from the kidney, liver, and intestine, were collected at 0, 4, 12, 24, and 48 h post infection (hpi). Serum lysozyme activity, a marker of non-specific innate immunity, showed strain and temporal effects during the acute infection phase with PSel showing the highest activity at 0 and 48 hpi. Differential gene expression responses were detected, with varying degrees, in all tissues, both between strains, as well as across acute timepoints within strains. The VSel strain showed upregulation for a particular subset of viral recognition genes during early infection timepoints and rather limited upregulation of immune genes later, while maintaining and reactivating metabolic pathways. The CSel strain showed a downregulation of metabolic related genes and a limited upregulation of immune genes, while the PSel strain showed similar downregulation of metabolic genes during acute infection, yet when compared to the CSel strain, showed a more robust innate immune response. Evaluation of upregulated immune response genes, as well as interferon-related genes showed the PSel strain to have the greatest number of uniquely upregulated immune genes in both the kidney and intestine, with CSel and PSel showing a similar number of such genes upregulated in liver. A moderate number of immune response genes were shared between PSel and CSel in all tissues, though both PSel and VSel showed a high number of uniquely overexpressed immune response genes in the kidney, and PSel showed the highest number of uniquely upregulated interferon related genes in the intestine. Overall, the VSel response was unique from the CSel with very little overlap in activated immune responses. Findings from this study highlight the disparity in IHNV resistance among genetic strains of rainbow trout, while identifying molecular mechanisms underlying differences in disease phenotypes. Furthermore, our results on trout strains with distinct selection backgrounds yields comparative insights into the adaptive gains brought about by selection programs for pathogen-specific disease resistance, as well as the non-specific immune enhancement associated with selection for utilization of plant-based diets.
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Affiliation(s)
- Jacob W Bledsoe
- Aquaculture Research Institute, Department of Animal, Veterinary & Food Sciences, University of Idaho, Hagerman, ID, USA
| | - Jia Ma
- Department of Fish and Wildlife Sciences, University of Idaho, Moscow, ID, USA
| | - Ken Cain
- Department of Fish and Wildlife Sciences, University of Idaho, Moscow, ID, USA
| | - Timothy J Bruce
- School of Fisheries, Aquaculture & Aquatic Sciences, Auburn University, Auburn, AL, USA
| | - Anna Rawles
- ARS-USDA, Harry K. Dupree Stuttgart National Aquaculture Research Center, Stuttgart, AR, USA
| | - Jason Abernathy
- ARS-USDA, Harry K. Dupree Stuttgart National Aquaculture Research Center, Stuttgart, AR, USA
| | - Tom Welker
- United States Department of Agriculture-Agricultural Research Service, Hagerman Fish Culture Experiment Station, Hagerman, ID, USA
| | - Ken Overturf
- United States Department of Agriculture-Agricultural Research Service, Hagerman Fish Culture Experiment Station, Hagerman, ID, USA.
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Zhang H, Qi H, Weng S, He J, Dong C. Deleting ORF71L of infectious spleen and kidney necrosis virus (ISKNV) resulted in virulence attenuation in Mandarin fish. FISH & SHELLFISH IMMUNOLOGY 2022; 123:335-347. [PMID: 35217194 DOI: 10.1016/j.fsi.2022.02.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 02/14/2022] [Accepted: 02/21/2022] [Indexed: 06/14/2023]
Abstract
Infectious spleen and kidney necrosis virus (ISKNV), the type species of the genus Megalocytivirus, infects a variety of teleost fish species and causes substantial losses in the aquaculture industry worldwide. ISKNV ORF71L is 1611 bp in length, encodes a 537-amino-acid peptide and was previously identified as a viral structural protein in the ISKNV virion. In this study, the ORF71L deletion mutant virus strain ISKNV-Δ71 was obtained through a homologous recombination approach. The multistep growth curves showed that ISKNV-Δ71 replication was faster than ISKNV-WT replication in mandarin fish fry cells (MFF-1 cells) before 48 h post-infection (hpi). The cumulative mortality of ISKNV-Δ71-infected mandarin fish (Siniperca chuatsi) was lower than that of fish infected with ISKNV-WT. The copy numbers of viral genome equivalents (GEs) in ISKNV-Δ71-infected mandarin fish spleens were also lower than those in ISKNV-WT-infected spleens. Deletion of ORF71L resulted in ISKNV virulence attenuation in mandarin fish. Furthermore, we found that the number of melanomacrophage centers (MMCs) in ISKNV-Δ71-infected mandarin fish spleens was higher than that in ISKNV-WT-infected mandarin fish spleens. Transcriptomic analysis showed that the cytokine-cytokine receptor interaction pathway had the most significant change between ISKNV-Δ71- and ISKNV-WT-infected MFF-1 cells. These results indicated ORF71L is a virulence-related gene of ISKNV. ORF71L could be considered as a potential target for the development of engineered attenuated live vaccines via multigene deletion or as a potential insertion site for exogenous protein expression.
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Affiliation(s)
- Hetong Zhang
- State Key Laboratory of Biocontrol/School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519000, China; Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, 510275, China
| | - Hemei Qi
- State Key Laboratory of Biocontrol/School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China; Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, 510275, China
| | - Shaoping Weng
- State Key Laboratory of Biocontrol/School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519000, China; Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, 510275, China
| | - Jianguo He
- State Key Laboratory of Biocontrol/School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519000, China; Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, 510275, China.
| | - Chuanfu Dong
- State Key Laboratory of Biocontrol/School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519000, China; Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, 510275, China.
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Hu X, Li H, Lin Y, Wang Z, Feng H, Zhou M, Shi L, Cao H, Ren Y. Genomic deciphering of sex determination and unique immune system of a potential model species rare minnow ( Gobiocypris rarus). SCIENCE ADVANCES 2022; 8:eabl7253. [PMID: 35108042 PMCID: PMC8809535 DOI: 10.1126/sciadv.abl7253] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Gobiocypris rarus is sensitive to environmental pollution, especially to heavy metal and grass carp reovirus (GCRV). Hence, it has potential utility as a biological monitor. Genetic deciphering of its unique immune system will advance our understanding of its unique adaptive strategies, which provide cues for its better application. A de novo genome of rare minnow was obtained, and its sex determination mechanism is ZZ/ZW. We identified several specific mutation genes and specific lost genes of rare minnow, and these might be related to the sensitivity of rare minnow to environmental stimuli. We also analyzed the gene expression level of different organs/tissues and found that several IFIT genes may play key roles in GCRV resistance. In addition, knockout of the gene PCDH10L indicates that PCDH10L affects Pb2+-induced mortality in rare minnow. Rare minnow is ready for genetic manipulation and shows potential as an emerging experimental model.
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Affiliation(s)
- Xudong Hu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haorong Li
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yusheng Lin
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhongkai Wang
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an 710072, China
| | - Haohao Feng
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Man Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lixia Shi
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong Cao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Corresponding author. (Y.R.); (H.C.)
| | - Yandong Ren
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an 710072, China
- Corresponding author. (Y.R.); (H.C.)
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10
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Roh H, Kim DH. Identification, classification and functional characterization of HSP70s in rainbow trout (Oncorhynchus mykiss) through multi-omics approaches. FISH & SHELLFISH IMMUNOLOGY 2022; 121:205-214. [PMID: 34990808 DOI: 10.1016/j.fsi.2021.12.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/28/2021] [Accepted: 12/30/2021] [Indexed: 06/14/2023]
Abstract
Heat shock protein 70s (HSP70s) are known to play vital biological processes in rainbow trout. However, information on the numerous roles and classification of many different HSP70s is insufficient. The purpose of this study was to investigate the characteristics of all HSP70s in rainbow trout using multi-dimensional genomic and transcriptomic analyses for inspecting HSP70 homologs, phylogenetic characteristics, DNA motifs, and transcription factor binding sites (TFBSs). Also, the transcriptomic results in conditions of acute thermal stress and Ichthyophthirius multifiliis infection were used to characterize the expression of all HSP70 homologs, and the isoforms of the most sensitive HSP70 were predicted in silico. A total of 23 HSP70s were identified, and they were divided into seven evolutionary groups (groups 1-7). Groups 1 and 2 had relatively longer phylogenetic distances compared to the other groups, which can speculate origin of groups 1 and 2 HSP70s would be different compared to others. With transcriptomic profiling, most HSPs belonging to group 3 showed highly sensitive responses to I. multifiliis infection, not thermal stress, but the group 6 HSP70s had the opposite expression tendencies. Likewise, the composition of the TFBS in each HSP70 was consistent with its group classification. Since TFBSs are widely known to influence transcriptomic expression, they could be one of the major reasons for the different patterns of expression within the HSP70 groups. Moreover, this study demonstrated several isoforms of HSP70a, by far the most sensitive HSP70s, under several stress environments such as hypoxia, thermal, and overcrowding stress. This is an important fundamental study to expand the understanding of HSP70s in rainbow trout as well as for selecting the most sensitive biomarkers for types of stress.
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Affiliation(s)
- HyeongJin Roh
- Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University, 45, Yongso-ro, Nam-Gu, Busan, South Korea
| | - Do-Hyung Kim
- Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University, 45, Yongso-ro, Nam-Gu, Busan, South Korea.
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11
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Holeyappa SA, Kaur A, Bansal N, Ansal MD, Patil JG, Thammegowda NB, Kaur VI, Sethi RS. Biomarker-assisted assessment of aquatic health using the cosmopolitan common carp, Cyprinus carpio (L): a case study of bisphenol-A exposures. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:14206-14218. [PMID: 34601693 DOI: 10.1007/s11356-021-16778-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Monitoring aquatic health from environmental pollutants is critical, none more so than bisphenol-A (BPA), a ubiquitous endocrine-disrupting chemical (EDC). The present study brings out the responses of selected transcripts, hormone levels, and tissue histomorphology in a widely distributed fish species Cyprinus carpio (Linn.), following exposure to environmentally relevant (10, 100 ng/L) and higher (1000 ng/L) concentration of BPA. The response of cyp19a1a, cyp19a1b, and c3 significantly decreased, while that of vtg increased in their respective tissue domains. The hematological parameters TEC, Hb, and Hct decreased significantly in contrast to TLC (p < 0.05) at all exposure concentrations, whereas none of the erythrocytic indices (MCV, MCH, and MCHC) was perturbed. The steroidogenic hormone levels, such as estradiol and progesterone, increased significantly with increasing BPA concentrations. In contrast, the testosterone and all the thyroid hormones (T3, T4, and TSH) were suppressed significantly (p < 0.05). At the histological level, the BPA induced chondrocyte proliferation, which was accompanied by hemorrhage of the gill lamellae, increased melanomacrophagic centers (MMCs), and degeneration of tubules and fluid accumulation in the kidney. In parallel, binucleated hepatocytes and inflammations were prominent in the liver. Collectively, the histomorphology confirmed induction of degenerative effects in all the tissues investigated, while the cyclic responses of biochemical markers suggest an ability to regulate the impacts. However, a chronic exposure could result in overriding the endemic reproductive pathways with potential population-level effects. In conclusion, the study identified multiple molecular, cellular, and physiological markers that could be employed to detect early signs of BPA and more broadly EDC exposures. These markers in combination with a wide distribution of C. carpio should allow comparative studies of pollutants at environmental concentrations.
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Affiliation(s)
- Shanthanagouda Admane Holeyappa
- Department of Aquatic Environment, College of Fisheries, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India.
| | - Amandeep Kaur
- Department of Aquaculture, College of Fisheries, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - Neelam Bansal
- Department of Veterinary Anatomy, College of Veterinary Sciences, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - Meera D Ansal
- Department of Aquaculture, College of Fisheries, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India.
| | - Jawahar G Patil
- Fisheries and Aquaculture Centre, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Australia
| | - Naveenkumar Billekallu Thammegowda
- Department of Aquatic Environment, College of Fisheries, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - Vaneet Inder Kaur
- Department of Aquaculture, College of Fisheries, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - Ram Saran Sethi
- College of Animal Biotechnology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
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12
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Abós B, Pérez-Fernández E, Morel E, Perdiguero P, Tafalla C. Pro-Inflammatory and B Cell Regulating Capacities of TWEAK in Rainbow Trout ( Oncorhynchus mykiss). Front Immunol 2021; 12:748836. [PMID: 34659247 PMCID: PMC8517431 DOI: 10.3389/fimmu.2021.748836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/15/2021] [Indexed: 11/22/2022] Open
Abstract
Tumor necrosis factor (TNF)-like weak inducer of apoptosis or TWEAK is a member of the TNF superfamily involved in the regulation of many biological processes. In mammals, TWEAK has been shown to play a role in some autoimmune or inflammatory conditions, but its immune role is not yet clearly defined. In teleost fish, although a few studies have identified homologues to mammalian TWEAK, their biological effects have never been investigated. In the current study, we have studied the transcriptional regulation of two TWEAK homologues (TWEAK 1 and 2) identified in rainbow trout (Oncorhynchus mykiss) throughout different tissues, in response to parasitic or viral infections, or in head kidney (HK) leukocytes stimulated with different stimuli. Although the transcription of both homologues was modulated when HK leukocytes were exposed to several immune stimuli, only TWEAK 1 was significantly modulated upon pathogenic exposure. Thus, we performed a characterization of the functions exerted by this cytokine in HK leukocytes. Recombinant TWEAK 1 strongly up-regulated the transcription of pro-inflammatory genes and antimicrobial peptides in HK leukocytes, with differential transcriptional effects in IgM+ B cells, IgM- lymphocytes and myeloid cells. TWEAK 1 also increased the survival and promoted the differentiation of B cells in HK leukocyte cultures. Our results demonstrate that in teleost fish, TWEAK 1 is involved in the response to different types of pathogens, through the modulation of antimicrobial and pro-inflammatory genes in different leukocytes subsets. Furthermore, a role for TWEAK as a B cell differentiation factor has also been established in rainbow trout.
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Affiliation(s)
- Beatriz Abós
- Animal Health Research Center (CISA), Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria (INIA), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Elena Pérez-Fernández
- Animal Health Research Center (CISA), Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria (INIA), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Esther Morel
- Animal Health Research Center (CISA), Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria (INIA), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Pedro Perdiguero
- Animal Health Research Center (CISA), Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria (INIA), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Carolina Tafalla
- Animal Health Research Center (CISA), Centro Nacional Instituto de Investigación y Tecnología Agraria y Alimentaria (INIA), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
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13
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Sun Q, Wang J, Wang G, Wang H, Liu H. Integrated analysis of lncRNA and mRNA in liver of Megalobrama amblycephala post Aeromonas hydrophila infection. BMC Genomics 2021; 22:653. [PMID: 34511071 PMCID: PMC8435129 DOI: 10.1186/s12864-021-07969-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 08/28/2021] [Indexed: 01/01/2023] Open
Abstract
Background As non-coding RNA molecules of more than 200 bp in length, long non-coding RNAs (lncRNAs) play a variety of roles in biological processes, including regulating the immune responses to bacterial infections. In recent years, there have been many in-depth studies on mammalian lncRNAs, but the relevant studies in fish are very limited. Meanwhile, since lncRNAs are not conserved among species, it is difficult to apply the existing results directly to unstudied species. Results To obtain the information of lncRNAs in Megalobrama amblycephala, one of the most economically important freshwater fish in China, also to better understand the biological significance of lncRNAs in the immunity system, the fish liver at 0, 4, 12, 24, and 72 h post Aeromonas hydrophila infection (hpi) were obtained for lncRNA-sequencing (lncRNA-seq). A total of 14,849 lncRNAs were identified, and 2196 lncRNAs showed significant differences at different time points post A. hydrophila infection. Gene Ontology (GO) annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses showed that the target genes of the differentially expressed lncRNAs were enriched in several pathways related to immune such as apoptosis, inflammation, and immune response. Time-specific modules were then identified, using weighted correlation network analysis (WGCNA), and 28 modules significantly correlated with different time point after infection were found. Furthermore, four immune-related genes and six lncRNAs in the time-specific modules were subsequently verified by RT-qPCR. Conclusions The above findings reveal the discovery of widespread differentially expressed lncRNAs in the M. amblycephala liver post A. hydrophila infection, suggesting that lncRNAs might participate in the regulation of host response to bacterial infection, enriching the information of lncRNAs in teleost and providing a resources basis for further studies on the immune function of lncRNAs. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-021-07969-5.
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Affiliation(s)
- Qianhui Sun
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair / Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China.,Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, 430070, China
| | - Jixiu Wang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair / Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China.,Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, 430070, China
| | - Guowen Wang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair / Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China.,Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, 430070, China
| | - Huanling Wang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair / Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China.,Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, 430070, China
| | - Hong Liu
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair / Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China. .,Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, 430070, China.
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14
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Hwang D, Lim CH, Lee SH, Goo TW, Yun EY. Effect of Feed Containing Hermetia illucens Larvae Immunized by Lactobacillus plantarum Injection on the Growth and Immunity of Rainbow Trout ( Oncorhynchus mykiss). INSECTS 2021; 12:insects12090801. [PMID: 34564241 PMCID: PMC8467036 DOI: 10.3390/insects12090801] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 01/18/2023]
Abstract
Simple Summary In this study, we evaluated the effect on the growth and immunity of rainbow trout of a feed formulated using Hermetia illucens with increased antimicrobial peptides expression by Lactobacillus plantarum infection (ImHIL). As a result, growth and immunological indicators improved, and therefore, ImHIL is expected to become a good feed source for rainbow trout aquaculture. Abstract We investigated the effects of a feed containing Hermetia illucens larvae injected with bacteria on the growth and immunity of Oncorhynchus mykiss. The feed was prepared by replacing fishmeal in feed with 25 and 50% nonimmunized (HIL25, HIL50) or immunized HIL (ImHIL25, ImHIL50), and its protein:fat:carbohydrate ratio was 45:15:18. ImHIL extracts showed inhibitory activity against fish pathogenic bacteria. Both red blood cell count and insulin-like growth factor-1 as the growth indicator were the highest among the groups at week 6 after feeding in the ImHIL50 group. As immune indicators, blood aspartate aminotransferase levels were lower in the ImHIL25 and ImHIL50 groups than in that of other groups at week 6 after feeding, and lysozyme content was significantly higher in ImHIL25 and ImHIL50. The above results demonstrate that ImHIL has a beneficial effect on the improvement of growth and immunity. Accordingly, we suggest that ImHIL has the potential to be a good feed source in aquaculture.
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Affiliation(s)
- Dooseon Hwang
- Department of Integrative Biological Sciences and Industry, Sejong University, Seoul 05006, Korea; (D.H.); (C.-H.L.); (S.H.L.)
| | - Chae-Hwan Lim
- Department of Integrative Biological Sciences and Industry, Sejong University, Seoul 05006, Korea; (D.H.); (C.-H.L.); (S.H.L.)
| | - Seung Hun Lee
- Department of Integrative Biological Sciences and Industry, Sejong University, Seoul 05006, Korea; (D.H.); (C.-H.L.); (S.H.L.)
| | - Tae-Won Goo
- Department of Biochemistry, School of Medicine, Dongguk University, Gyeongju 38066, Korea;
| | - Eun-Young Yun
- Department of Integrative Biological Sciences and Industry, Sejong University, Seoul 05006, Korea; (D.H.); (C.-H.L.); (S.H.L.)
- Correspondence: ; Tel.: +82-2-6935-2523
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15
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He M, Ding NZ, He CQ. Novirhabdoviruses versus fish innate immunity: A review. Virus Res 2021; 304:198525. [PMID: 34339774 DOI: 10.1016/j.virusres.2021.198525] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/16/2021] [Accepted: 07/22/2021] [Indexed: 01/23/2023]
Abstract
Novirhabdoviruses belong to the Rhabdoviridae family of RNA viruses. All of the four members are pathogenic for bony fish. Particularly, Infectious hematopoietic necrosis virus (IHNV) and Viral hemorrhagic septicemia virus (VHSV) often cause mass animal deaths and huge economic losses, representing major obstacles to fish farming industry worldwide. The interactions between fish and novirhabdoviruses are becoming better understood. In this review, we will present our current knowledge of fish innate immunity, particularly type I interferon (IFN-I) response, against novirhabdoviral infection, and the evasion strategies exploited by novirhabdoviruses. Members of Toll-like receptors (TLRs) and RIG-I-like receptors (RLRs) appear to be involved in novirhabdovirus surveillance. NF-κB activation and IFN-I induction are primarily triggered for antiviral defense. Autophagy can also be induced by viral glycoprotein (G). Although sensitive to IFN-I, novirhabdoviruses have nucleoprotein (N), matrix protein (M), and non-virion protein (NV) to interfere with host signal transduction and gene expression steps toward antiviral state establishment. Moreover, novirhabdoviruses may exploit some microRNAs for immunosuppression.
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Affiliation(s)
- Mei He
- College of Life Science, Shandong Normal University, Jinan 250014, China
| | - Nai-Zheng Ding
- College of Life Science, Shandong Normal University, Jinan 250014, China.
| | - Cheng-Qiang He
- College of Life Science, Shandong Normal University, Jinan 250014, China.
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16
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Roh H, Kim N, Lee Y, Park J, Kim BS, Lee MK, Park CI, Kim DH. Dual-Organ Transcriptomic Analysis of Rainbow Trout Infected With Ichthyophthirius multifiliis Through Co-Expression and Machine Learning. Front Immunol 2021; 12:677730. [PMID: 34305907 PMCID: PMC8296305 DOI: 10.3389/fimmu.2021.677730] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 05/31/2021] [Indexed: 01/16/2023] Open
Abstract
Ichthyophthirius multifiliis is a major pathogen that causes a high mortality rate in trout farms. However, systemic responses to the pathogen and its interactions with multiple organs during the course of infection have not been well described. In this study, dual-organ transcriptomic responses in the liver and head kidney and hemato-serological indexes were profiled under I. multifiliis infection and recovery to investigate systemic immuno-physiological characteristics. Several strategies for massive transcriptomic interpretation, such as differentially expressed genes (DEGs), Poisson linear discriminant (PLDA), and weighted gene co-expression network analysis (WGCNA) models were used to investigate the featured genes/pathways while minimizing the disadvantages of individual methods. During the course of infection, 6,097 and 2,931 DEGs were identified in the head kidney and liver, respectively. Markers of protein processing in the endoplasmic reticulum, oxidative phosphorylation, and the proteasome were highly expressed. Likewise, simultaneous ferroptosis and cellular reconstruction was observed, which is strongly linked to multiple organ dysfunction. In contrast, pathways relevant to cellular replication were up-regulated in only the head kidney, while endocytosis- and phagosome-related pathways were notably expressed in the liver. Moreover, interestingly, most immune-relevant pathways (e.g., leukocyte trans-endothelial migration, Fc gamma R-mediated phagocytosis) were highly activated in the liver, but the same pathways in the head kidney were down-regulated. These conflicting results from different organs suggest that interpretation of co-expression among organs is crucial for profiling of systemic responses during infection. The dual-organ transcriptomics approaches presented in this study will greatly contribute to our understanding of multi-organ interactions under I. multifiliis infection from a broader perspective.
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Affiliation(s)
- HyeongJin Roh
- Department of Aquatic Life Medicine, College of Fisheries Science, Pukyong National University, Busan, South Korea
| | - Nameun Kim
- Department of Aquatic Life Medicine, College of Fisheries Science, Pukyong National University, Busan, South Korea
| | - Yoonhang Lee
- Department of Aquatic Life Medicine, College of Fisheries Science, Pukyong National University, Busan, South Korea
| | - Jiyeon Park
- Department of Aquatic Life Medicine, College of Fisheries Science, Pukyong National University, Busan, South Korea
| | - Bo Seong Kim
- Aquatic Disease Control Division, National Institute of Fisheries Science (NIFS), Busan, South Korea
| | - Mu Kun Lee
- Korean Aquatic Organism Disease Inspector Association, Busan, South Korea
| | - Chan-Il Park
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong, South Korea
| | - Do-Hyung Kim
- Department of Aquatic Life Medicine, College of Fisheries Science, Pukyong National University, Busan, South Korea
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17
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Liu WB, Wang MM, Dai LY, Dong SH, Yuan XD, Yuan SL, Tang Y, Liu JH, Peng LY, Xiao YM. Enhanced Immune Response Improves Resistance to Cadmium Stress in Triploid Crucian Carp. Front Physiol 2021; 12:666363. [PMID: 34149447 PMCID: PMC8213368 DOI: 10.3389/fphys.2021.666363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/22/2021] [Indexed: 01/16/2023] Open
Abstract
Previous research has indicated that triploid crucian carp (3n fish) have preferential resistance to cadmium (Cd) compared to Carassius auratas red var. (2n fish). In this article, comparative research is further conducted between the 2n and 3n fish in terms of the immune response to Cd-induced stress. Exposure to 9 mg/L Cd for 96 h changed the hepatic function indexes remarkably in the 2n fish, but not in the 3n fish. In the serum of Cd-treated 2n fish, the levels of alanine amino transferase, aspartate aminotransferase, adenosine deaminase, and total bilirubin significantly increased, while the levels of total protein, albumin, lysozyme, and anti-superoxide anion radicals decreased demonstrating hepatotoxicity. By analysis of transcriptome profiles, many immune-related pathways were found to be involved in the response of 3n fish to the Cd-induced stress. Expression levels of the immune genes, including the interleukin genes, tumor necrosis factor super family member genes, chemokine gene, toll-like receptor gene, and inflammatory marker cyclooxygenase 2 gene were significantly enhanced in the hepatopancreas of the Cd-treated 3n fish. In contrast, the expression levels of these genes decreased in the 2n fish. This research provides a theoretical basis for polyploid fish breeding and is helpful for the ecological restoration of water due to pollution.
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Affiliation(s)
- Wen-Bin Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China.,College of Life Sciences, Hunan Normal University, Changsha, China
| | - Min-Meng Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China.,College of Life Sciences, Hunan Normal University, Changsha, China
| | - Liu-Ye Dai
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China.,College of Life Sciences, Hunan Normal University, Changsha, China
| | - Sheng-Hua Dong
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China.,College of Life Sciences, Hunan Normal University, Changsha, China
| | - Xiu-Dan Yuan
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China.,College of Life Sciences, Hunan Normal University, Changsha, China
| | - Shu-Li Yuan
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China.,College of Life Sciences, Hunan Normal University, Changsha, China
| | - Yi Tang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China.,College of Life Sciences, Hunan Normal University, Changsha, China
| | - Jin-Hui Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China.,College of Life Sciences, Hunan Normal University, Changsha, China
| | - Liang-Yue Peng
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China.,College of Life Sciences, Hunan Normal University, Changsha, China
| | - Ya-Mei Xiao
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China.,College of Life Sciences, Hunan Normal University, Changsha, China
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18
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Chun JH, Jung JW, Kim YR, Lazarte JMS, Kim SW, Kim J, Thompson KD, Kim HJ, Jung TS. Poly (I:C)-Potentiated Vaccination Enhances T Cell Response in Olive Flounder ( Paralichthys olivaceus) Providing Protection against Viral Hemorrhagic Septicemia Virus (VHSV). Vaccines (Basel) 2021; 9:482. [PMID: 34068522 PMCID: PMC8151365 DOI: 10.3390/vaccines9050482] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/28/2021] [Accepted: 04/28/2021] [Indexed: 12/16/2022] Open
Abstract
Viral hemorrhagic septicemia (VHS), caused by viral hemorrhagic septicemia virus (VHSV), is a viral disease affecting teleosts, and is the major cause of virus-related deaths in olive flounder (Paralichthys olivaceus). Research has focused on ways to control VHS, and recently, the use of polyinosinic-polycytidylic acid poly (I:C)-potentiated vaccination has been investigated, whereby fish are injected with poly (I:C) and then with live pathogenic virus, resulting in a significant decrease in VHSV-related mortality. T cell responses were investigated in the present study after vaccinating olive flounder with poly (I:C)-potentiated vaccination to understand the ability of poly (I:C) to induce T cell immunity. Stimulation of T cell responses with the poly (I:C)-potentiated vaccination was confirmed by examining levels of CD3+ T cells, CD4-1+ T cells and CD4-2+ T cells. Higher levels of CD4-2+ T cells were found in vaccinated fish than CD4-1+ T cells, believed to result from a synergistic effect between poly (I:C) administration and pathogenic VHSV immunization. More importantly, the role of CD4-2+ T cells in the antiviral response was clearly evident. The results of this study suggest that the outstanding protection obtained with the poly (I:C)-potentiated vaccination is due to the robust immune response initiated by the CD4-2+ T cells.
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Affiliation(s)
- Jin Hong Chun
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.H.C.); (J.W.J.); (Y.R.K.); (J.M.S.L.); (S.W.K.); (J.K.)
| | - Jae Wook Jung
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.H.C.); (J.W.J.); (Y.R.K.); (J.M.S.L.); (S.W.K.); (J.K.)
| | - Young Rim Kim
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.H.C.); (J.W.J.); (Y.R.K.); (J.M.S.L.); (S.W.K.); (J.K.)
| | - Jassy Mary S. Lazarte
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.H.C.); (J.W.J.); (Y.R.K.); (J.M.S.L.); (S.W.K.); (J.K.)
| | - Si Won Kim
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.H.C.); (J.W.J.); (Y.R.K.); (J.M.S.L.); (S.W.K.); (J.K.)
| | - Jaesung Kim
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.H.C.); (J.W.J.); (Y.R.K.); (J.M.S.L.); (S.W.K.); (J.K.)
| | - Kim D. Thompson
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, Midlothian EH26 0PZ, UK;
| | - Hyoung Jun Kim
- Pathology Research Division, OIE Reference Laboratory for Viral Haemorrhagic Septicaemia (VHS), National Institute of Fisheries Science, 216, Gijanghaean-ro, Gijang-eup, Busan 46083, Korea;
| | - Tae Sung Jung
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.H.C.); (J.W.J.); (Y.R.K.); (J.M.S.L.); (S.W.K.); (J.K.)
- Centre for Marine Bioproducts Development, Flinders University, Bedford Park, SA 5042, Australia
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19
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Xu J, Yang N, Xie T, Yang G, Chang L, Yan D, Li T. Summary and comparison of the perforin in teleosts and mammals: A review. Scand J Immunol 2021; 94:e13047. [PMID: 33914954 DOI: 10.1111/sji.13047] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 04/14/2021] [Accepted: 04/23/2021] [Indexed: 12/18/2022]
Abstract
Perforin, a pore-forming glycoprotein, has been demonstrated to play key roles in clearing virus-infected cells and tumour cells due to its ability of forming 'pores' on the cell membranes. Additionally, perforin is also found to be associated with human diseases such as tumours, virus infections, immune rejection and some autoimmune diseases. Until now, plenty of perforin genes have been identified in vertebrates, especially the mammals and teleost fish. Conversely, vertebrate homologue of perforin gene was not identified in the invertebrates. Although recently there have been several reviews focusing on perforin and granzymes in mammals, no one highlighted the current advances of perforin in the other vertebrates. Here, in addition to mammalian perforin, the structure, evolution, tissue distribution and function of perforin in bony fish are summarized, respectively, which will allow us to gain more insights into the perforin in lower animals and the evolution of this important pore-forming protein across vertebrates.
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Affiliation(s)
- Jiahui Xu
- School of Agriculture, Ludong University, Yantai, China
| | - Ning Yang
- School of Agriculture, Ludong University, Yantai, China
| | - Ting Xie
- School of Agriculture, Ludong University, Yantai, China
| | - Guiwen Yang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Linrui Chang
- School of Agriculture, Ludong University, Yantai, China
| | - Dongchun Yan
- School of Agriculture, Ludong University, Yantai, China
| | - Ting Li
- School of Agriculture, Ludong University, Yantai, China
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20
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Multi-Omics Analysis Provides Novel Insight into Immuno-Physiological Pathways and Development of Thermal Resistance in Rainbow Trout Exposed to Acute Thermal Stress. Int J Mol Sci 2020; 21:ijms21239198. [PMID: 33276666 PMCID: PMC7731343 DOI: 10.3390/ijms21239198] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 11/23/2020] [Accepted: 11/25/2020] [Indexed: 12/16/2022] Open
Abstract
In recent years, poikilothermic animals such as fish have increasingly been exposed to stressful high-temperature environments due to global warming. However, systemic changes in fish under thermal stress are not fully understood yet at both the transcriptome and proteome level. Therefore, the objective of this study was to investigate the immuno-physiological responses of fish under extreme thermal stress through integrated multi-omics analysis. Trout were exposed to acute thermal stress by raising water temperature from 15 to 25 °C within 30 min. Head-kidney and plasma samples were collected and used for RNA sequencing and two-dimensional gel electrophoresis. Gene enrichment analysis was performed: differentially expressed genes (DEGs) and differentially expressed proteins (DEPs) were identified to interpret the multi-omics results and identify the relevant biological processes through pathway analysis. Thousands of DEGs and 49 DEPs were identified in fish exposed to thermal stress. Most of these genes and proteins were highly linked to DNA replication, protein processing in the endoplasmic reticulum, cell signaling and structure, glycolysis activation, complement-associated hemolysis, processing of released free hemoglobin, and thrombosis and hypertension/vasoconstriction. Notably, we found that immune disorders mediated by the complement system may trigger hemolysis in thermally stressed fish, which could have serious consequences such as ferroptosis and thrombosis. However, antagonistic activities that decrease cell-free hemoglobin, heme, and iron might be involved in alleviating the side effects of thermally induced immuno-physiological disorders. These factors may represent the major thermal resistance traits that allow fish to overcome extreme thermal stress. Our findings, based on integration of multi-omics data from transcriptomics and proteomics analyses, provide novel insight into the pathogenesis of acute thermal stress and temperature-linked epizootics.
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21
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Perdiguero P, Goméz-Esparza MC, Martín D, Bird S, Soleto I, Morel E, Díaz-Rosales P, Tafalla C. Insights Into the Evolution of the prdm1/Blimp1 Gene Family in Teleost Fish. Front Immunol 2020; 11:596975. [PMID: 33193451 PMCID: PMC7662092 DOI: 10.3389/fimmu.2020.596975] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 10/08/2020] [Indexed: 12/27/2022] Open
Abstract
In mammals, Blimp1 (B lymphocyte-induced maturation protein 1) encoded by the prdm1 gene and its homolog Hobit (homolog of Blimp1 in T cells) encoded by znf683, represent key transcriptional factors that control the development and differentiation of both B and T cells. Despite their essential role in the regulation of acquired immunity, this gene family has been largely unexplored in teleosts to date. Until now, one prdm1 gene has been identified in most teleost species, whereas a znf683 homolog has not yet been reported in any of these species. Focusing our analysis on rainbow trout (Oncorhynchus mykiss), an in silico identification and characterization of prdm1-like genes has been undertaken, confirming that prdm1 and znf683 evolved from a common ancestor gene, acquiring three gene copies after the teleost-specific whole genome duplication event (WGD) and six genes after the salmonid-specific WGD. Additional transcriptional studies to study how each of these genes are regulated in homeostasis, in response to a viral infection or in B cells in different differentiation stages, provide novel insights as to how this gene family evolved and how their encoded products might be implicated in the lymphocyte differentiation process in teleosts.
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Affiliation(s)
| | | | - Diana Martín
- Animal Health Research Center (CISA-INIA), Madrid, Spain
| | - Steve Bird
- Biomedical Unit, School of Science, University of Waikato, Hamilton, New Zealand
| | - Irene Soleto
- Animal Health Research Center (CISA-INIA), Madrid, Spain
| | - Esther Morel
- Animal Health Research Center (CISA-INIA), Madrid, Spain
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22
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Dong F, Tacchi L, Xu Z, LaPatra SE, Salinas I. Vaccination Route Determines the Kinetics and Magnitude of Nasal Innate Immune Responses in Rainbow Trout ( Oncorhynchus mykiss). BIOLOGY 2020; 9:biology9100319. [PMID: 33019693 PMCID: PMC7601189 DOI: 10.3390/biology9100319] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 09/08/2020] [Accepted: 09/30/2020] [Indexed: 12/16/2022]
Abstract
Simple Summary Many pathogens exploit the olfactory route to reach critical organs in the body such as the brain or lungs. Thus, effective onset of an early innate immune response in the nasal epithelium is key to stopping pathogen progression. The stimulation of nasal immunity by vaccines may depend on the type of vaccine and vaccination route. The goal of this study was to evaluate the ability of a live attenuated viral vaccine to stimulate innate immunity in the olfactory organ of rainbow trout, a teleost fish of commercial aquaculture value. The kinetics and magnitude of the innate immune response depended on the route of vaccination, with the strongest and fastest responses recorded in intranasally vaccinated fish. Injection vaccination had an intermediate effect, whereas immersion vaccination resulted in delayed and weak nasal innate immunity. Injection vaccination, even with the vehicle control, induced mortality in fingerlings, whereas nasal and immersion vaccines were safe. Challenge experiments with the live virus revealed that nasal and injected vaccines conferred very high and comparable levels of protection, but immersion vaccination only induced transient protection. In conclusion, the route of vaccination determines the type, magnitude and velocity of the innate immune response in the nasal epithelium of animals. Abstract Many pathogens infect animal hosts via the nasal route. Thus, understanding how vaccination stimulates early nasal immune responses is critical for animal and human health. Vaccination is the most effective method to prevent disease outbreaks in farmed fish. Nasal vaccination induces strong innate and adaptive immune responses in rainbow trout and was shown to be highly effective against infectious hematopoietic necrosis (IHN). However, direct comparisons between intranasal, injection and immersion vaccination routes have not been conducted in any fish species. Moreover, whether injection or immersion routes induce nasal innate immune responses is unknown. The goal of this study is to compare the effects of three different vaccine delivery routes, including intranasal (IN), intramuscular (i.m.) injection and immersion (imm) routes on the trout nasal innate immune response. Expression analyses of 13 immune-related genes in trout nasopharynx-associated lymphoid tissue (NALT), detected significant changes in immune expression in all genes analyzed in response to the three vaccination routes. However, nasal vaccination induced the strongest and fastest changes in innate immune gene expression compared to the other two routes. Challenge experiments 7 days post-vaccination (dpv) show the highest survival rates in the IN- and imm-vaccinated groups. However, survival rates in the imm group were significantly lower than the IN- and i.m.-vaccinated groups 28 dpv. Our results confirm that nasal vaccination of rainbow trout with live attenuated IHNV is highly effective and that the protection conferred by immersion vaccination is transient. These results also demonstrate for the first time that immersion vaccines stimulate NALT immune responses in salmonids.
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Affiliation(s)
- Fen Dong
- Center for Evolutionary and Theoretical Immunology, Department of Biology, University of New Mexico, Albuquerque, NM 87131, USA; (F.D.); (L.T.)
| | - Luca Tacchi
- Center for Evolutionary and Theoretical Immunology, Department of Biology, University of New Mexico, Albuquerque, NM 87131, USA; (F.D.); (L.T.)
| | - Zhen Xu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China;
| | | | - Irene Salinas
- Center for Evolutionary and Theoretical Immunology, Department of Biology, University of New Mexico, Albuquerque, NM 87131, USA; (F.D.); (L.T.)
- Correspondence:
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23
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Picard-Sánchez A, Estensoro I, Perdiguero P, Del Pozo R, Tafalla C, Piazzon MC, Sitjà-Bobadilla A. Passive Immunization Delays Disease Outcome in Gilthead Sea Bream Infected With Enteromyxum leei (Myxozoa), Despite the Moderate Changes in IgM and IgT Repertoire. Front Immunol 2020; 11:581361. [PMID: 33013935 PMCID: PMC7516018 DOI: 10.3389/fimmu.2020.581361] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 08/17/2020] [Indexed: 12/16/2022] Open
Abstract
Passive immunization constitutes an emerging field of interest in aquaculture, particularly with the restrictions for antibiotic use. Enteromyxum leei is a myxozoan intestinal parasite that invades the paracellular space of the intestinal epithelium, producing a slow-progressing disease, leading to anorexia, cachexia and mortalities. We have previously demonstrated that gilthead sea bream (GSB, Sparus aurata) that survive E. leei infection become resistant upon re-exposure, and this resistance is directly related to the presence of high levels of specific IgM in serum. Thus, the current work was aimed to determine if passive immunization could help to prevent enteromyxosis in GSB and to study in detail the nature of these protective antibodies. Serum from a pool of resistant (SUR) or naïve (NAI) animals was intracoelomically injected 24 h prior to the E. leei-effluent challenge and at 9 days post-challenge (dpc). Effluent challenge lasted for 23 days, and then the injected groups were allocated in separate tanks with clean water. A non-lethal parasite diagnosis was performed at 56 dpc. At the final sampling (100 dpc), blood, serum and tissues were collected for histology, molecular diagnosis and the detection of circulating antibodies. In parallel, we performed an immunoglobulin repertoire analysis of the fish generating SUR and NAI sera. The results showed that, fish injected with parasite-specific antibodies (spAbs) became infected with the parasite, but showed lower disease signs and intensity of infection than the other groups, indicating a later establishment of the parasite. Repertoire analysis revealed that E. leei induced a polyclonal expansion of diverse IgM and IgT subsets that could be in part an evasion strategy of the parasite. Nonetheless, GSB was able to produce sufficient levels of parasite-spAbs to avoid re-infection of surviving animals and confer certain degree of protection upon passive transfer of antibodies. These results highlight the crucial role of spAb responses against E. leei and set the basis for the development of effective treatment or prophylactic methods for aquaculture.
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Affiliation(s)
- Amparo Picard-Sánchez
- Fish Pathology Group, Institute of Aquaculture Torre de la Sal (IATS-CSIC), Castellón, Spain
| | - Itziar Estensoro
- Fish Pathology Group, Institute of Aquaculture Torre de la Sal (IATS-CSIC), Castellón, Spain
| | | | - Raquel Del Pozo
- Fish Pathology Group, Institute of Aquaculture Torre de la Sal (IATS-CSIC), Castellón, Spain
| | | | - M Carla Piazzon
- Fish Pathology Group, Institute of Aquaculture Torre de la Sal (IATS-CSIC), Castellón, Spain
| | - Ariadna Sitjà-Bobadilla
- Fish Pathology Group, Institute of Aquaculture Torre de la Sal (IATS-CSIC), Castellón, Spain
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24
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Overfeeding-Induced Obesity Could Cause Potential Immuno-Physiological Disorders in Rainbow Trout ( Oncorhynchus mykiss). Animals (Basel) 2020; 10:ani10091499. [PMID: 32854279 PMCID: PMC7552159 DOI: 10.3390/ani10091499] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/17/2020] [Accepted: 08/21/2020] [Indexed: 12/14/2022] Open
Abstract
Although over-nutrition from overfeeding-induced obesity is known to be highly associated with metabolic and immunological disorders in humans, little is known about overfeeding-induced obesity in fish farming. The purpose of this study was to investigate changes in immuno-physiological parameters, to better understand the potential risk of overfeeding-induced obesity in fish. Commercial feed was provided to fish in the overfed group until they refuse to eat, but fish in the control group was fed with the feed at 1% bodyweight per day. The hemato-serological, histological, and immunological changes were observed at weeks 2 and 8. Rainbow trout leukocytes were co-incubated with oxidized low-density lipoprotein (OxLDL), and the phagocytes engulfing the OxLDL and the presence of apoptotic cells were evaluated. The body weight, body mass index (BMI), and hepatosomatic index (HSI) index were significantly higher in the overfed group, and high lipid accumulation and fatty changes were also observed in their livers, indicating that the feeding regime used in this study led to overfeeding-induced obesity. Likewise, much higher numbers of and larger vacuoles were observed in overfed fish macrophages, showing unclear boundaries between the cytoplasm and extracellular space. In the overfed group, the expression of IL-10, HSP70, TLR2, and CD36 was significantly higher, and lymphocyte apoptosis was more evident, indicating that overfeeding-induced obese fish might have immunologic disorders. This was the first study to demonstrate that overfeeding-induced obesity could cause an immune-physiological imbalance in rainbow trout, making them more vulnerable to infectious diseases and various stressful conditions. This study will contribute to improvements in fish nutrition, feeding practices, fish nutrition, and disease prevention in the aquaculture industry.
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25
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Brunner SR, Varga JFA, Dixon B. Antimicrobial Peptides of Salmonid Fish: From Form to Function. BIOLOGY 2020; 9:E233. [PMID: 32824728 PMCID: PMC7464209 DOI: 10.3390/biology9080233] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/11/2020] [Accepted: 08/13/2020] [Indexed: 02/06/2023]
Abstract
Antimicrobial peptides (AMPs) are small, usually cationic, and amphiphilic molecules that play a crucial role in molecular and cellular host defense against pathogens, tissue damage, and infection. AMPs are present in all metazoans and several have been discovered in teleosts. Some teleosts, such as salmonids, have undergone whole genome duplication events and retained a diverse AMP repertoire. Salmonid AMPs have also been shown to possess diverse and potent antibacterial, antiviral, and antiparasitic activity and are induced by a variety of factors, including dietary components and specific molecules also known as pathogen-associated molecular patterns (PAMPs), which may activate downstream signals to initiate transcription of AMP genes. Moreover, a multitude of cell lines have been established from various salmonid species, making it possible to study host-pathogen interactions in vitro, and several of these cell lines have been shown to express various AMPs. In this review, the structure, function, transcriptional regulation, and immunomodulatory role of salmonid AMPs are highlighted in health and disease. It is important to characterize and understand how salmonid AMPs function as this may lead to a better understanding of host-pathogen interactions with implications for aquaculture and medicine.
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Affiliation(s)
- Sascha R. Brunner
- Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada; (S.R.B.); (J.F.A.V.)
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Joseph F. A. Varga
- Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada; (S.R.B.); (J.F.A.V.)
| | - Brian Dixon
- Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada; (S.R.B.); (J.F.A.V.)
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Mandal SC, Weidmann M, Albalat A, Carrick E, Morro B, MacKenzie S. Polarized Trout Epithelial Cells Regulate Transepithelial Electrical Resistance, Gene Expression, and the Phosphoproteome in Response to Viral Infection. Front Immunol 2020; 11:1809. [PMID: 32922394 PMCID: PMC7456818 DOI: 10.3389/fimmu.2020.01809] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 07/07/2020] [Indexed: 11/13/2022] Open
Abstract
The burden of disease is a major challenge in aquaculture production. The fish gill characterized with a large surface area and short route to the bloodstream is a major environmental interface and a significant portal of entry for pathogens. To investigate gill responses to viral infection the salmonid gill cell line RTgill-W1 was stimulated with synthetic dsRNA and the salmonid alphavirus subtype 2 (SAV-2). Epithelial integrity in polarized cells can be measured as transepithelial electrical resistance (TEER) which is defined as the electrical resistance across a cell monolayer. TEER is a widely accepted quantitative measure of cellular integrity of a cell monolayer. TEER increased immediately after stimulation with the synthetic dsRNA, polyinosinic:polycytidylic acid (poly(I:C)). In parallel, tight junction and gene expression of innate immune activation markers was modulated in response to poly(I:C). The SAV-2 virus was found to replicate at a low level in RTgill-W1 cells where TEER was disturbed at an early stage of infection, however, gene expression related to tight junction regulation was not modulated. A strong poly(I:C)-driven antiviral response was observed including increases of Rig-like receptors (RLRs) and interferon stimulating genes (ISGs) mRNAs. At the level of signal transduction, poly(I:C) stimulation was accompanied by the phosphorylation of 671 proteins, of which 390 were activated solely in response to the presence of poly(I:C). According to motif analysis, kinases in this group included MAPKs, Ca2+/calmodulin-dependent kinase (CaMK) and cAMP-dependent protein kinase (PKA), all reported to be activated in response to viral infection in mammals. Results also highlighted an activation of the cytoskeletal organization that could be mediated by members of the integrin family. While further work is needed to validate these results, our data indicate that salmonid gill epithelia has the ability to mount a significant response to viral infection which might be important in disease progression. In vitro cell culture can facilitate both a deeper understanding of the anti-viral response in fish and open novel therapeutic avenues for fish health management in aquaculture.
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Affiliation(s)
- Shankar C Mandal
- Institute of Aquaculture, University of Stirling, Stirling, United Kingdom.,Department of Fisheries, University of Dhaka, Dhaka, Bangladesh
| | - Manfred Weidmann
- Institute of Aquaculture, University of Stirling, Stirling, United Kingdom
| | - Amaya Albalat
- Institute of Aquaculture, University of Stirling, Stirling, United Kingdom
| | - Emma Carrick
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Bernat Morro
- Institute of Aquaculture, University of Stirling, Stirling, United Kingdom
| | - Simon MacKenzie
- Institute of Aquaculture, University of Stirling, Stirling, United Kingdom
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Owatari MS, Jesus GFA, Cardoso L, Lehmann NB, Martins ML, Mouriño JLP. Can histology and haematology explain inapparent Streptococcus agalactiae infections and asymptomatic mortalities on Nile tilapia farms? Res Vet Sci 2019; 129:13-20. [PMID: 31901532 DOI: 10.1016/j.rvsc.2019.12.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 12/18/2019] [Accepted: 12/22/2019] [Indexed: 11/30/2022]
Abstract
The aim of this study was to characterise possible histopathological and haemato-immunological changes after subclinical infection by S. agalactiae S13 serotype Ib. One hundred juveniles of Nile tilapia with average weight of 45 g were distributed in ten 90 L experimental units. After the acclimation period 25 fish were euthanised, and fragments of liver, spleen and posterior mid-intestine tissue were sampled to verify the integrity of the organs and blood samples taken to check the haematological profile. Fifty animals were used to verify the optimal dosage for the challenge. The remaining 25 fish were infected with S. agalactiae S13. After 96 h, tissue fragments from the liver, spleen and posterior mid-intestine and blood samples were collected. The analyses revealed that, 96 h after contagion, S. agalactiae S13 serotype Ib caused subclinical lesions in the liver and spleen that are not commonly described as pathognomonic, in addition to haematological alterations. These results allow a better understanding of sudden recurrent mortalities in Brazilian tilapia farms, since the serotype Ib of S. agalactiae causes inapparent infections and can remain lodged in internal organs and cause irreversible lesions and haemato-immunological alterations, therefore compromising physiological functions vital for the health of fish without revealing external clinical signs in the animals.
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Affiliation(s)
- Marco Shizuo Owatari
- AQUOS - Aquatic Organisms Health Laboratory, Aquaculture Department, Federal University of Santa Catarina (CCA, UFSC), Rodovia Admar Gonzaga 1346, 88040-900 Florianópolis, SC, Brazil.
| | - Gabriel Fernandes Alves Jesus
- AQUOS - Aquatic Organisms Health Laboratory, Aquaculture Department, Federal University of Santa Catarina (CCA, UFSC), Rodovia Admar Gonzaga 1346, 88040-900 Florianópolis, SC, Brazil
| | - Lucas Cardoso
- AQUOS - Aquatic Organisms Health Laboratory, Aquaculture Department, Federal University of Santa Catarina (CCA, UFSC), Rodovia Admar Gonzaga 1346, 88040-900 Florianópolis, SC, Brazil
| | - Nicollas Breda Lehmann
- AQUOS - Aquatic Organisms Health Laboratory, Aquaculture Department, Federal University of Santa Catarina (CCA, UFSC), Rodovia Admar Gonzaga 1346, 88040-900 Florianópolis, SC, Brazil
| | - Maurício Laterça Martins
- AQUOS - Aquatic Organisms Health Laboratory, Aquaculture Department, Federal University of Santa Catarina (CCA, UFSC), Rodovia Admar Gonzaga 1346, 88040-900 Florianópolis, SC, Brazil
| | - José Luiz Pedreira Mouriño
- AQUOS - Aquatic Organisms Health Laboratory, Aquaculture Department, Federal University of Santa Catarina (CCA, UFSC), Rodovia Admar Gonzaga 1346, 88040-900 Florianópolis, SC, Brazil
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28
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Niu J, Huang Y, Li Y, Wang Z, Tang J, Wang B, Lu Y, Cai J, Jian J. Characterization of a tandem-repeat galectin-9 from Nile tilapia (Oreochromis niloticus) involved in the immune response against bacterial infection. FISH & SHELLFISH IMMUNOLOGY 2019; 92:216-223. [PMID: 31154113 DOI: 10.1016/j.fsi.2019.05.061] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/27/2019] [Accepted: 05/27/2019] [Indexed: 06/09/2023]
Abstract
Galectin-9 is a <beta>-galactoside-binding lectin which could modulate a variety of biological functions including recognition, aggregation and clearance of pathogen. In this study, a galectin-9 homologue (OnGal-9) was identified from Nile tilapia (Oreochromis niloticus) and its expression model and biological effects on bacterial infection were analyzed. The open reading frame of OnGal-9 sequence was 975 bp encoding 324 amino acids. It shares 45%-92% identities with other galectin-9 proteins. The deduced mature peptide of OnGal-9 possesses two conserved carbohydrate recognition domain (CRD) that connected with a linker peptide. Expression analysis indicated that OnGal-9 was distributed in all the tested tissues of healthy tilapia. The OnGal-9 expression was significantly up-regulated in spleen, head kidney, and intestine after challenged by Streptococcus agalactiae. Meanwhile, the recombinant OnGal-9 (rOnGal-9) protein displayed strong binding and agglutination activity toward both Streptococcus agalactiae and Aeromonas hydrophila. Moreover, rOnGal-9 could promote phagocytosis of macrophages. Taken together, the results here indicate that OnGal-9 might be involved in the immune response of Nile tilapia against bacterial infection.
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Affiliation(s)
- Jinzhong Niu
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524088, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, China; Guangdong Key Laboratory of Control for Diseases of Aquatic Economic Animals, Zhanjiang, China
| | - Yu Huang
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524088, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, China; Guangdong Key Laboratory of Control for Diseases of Aquatic Economic Animals, Zhanjiang, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen, 518120, China
| | - Yuan Li
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524088, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, China; Guangdong Key Laboratory of Control for Diseases of Aquatic Economic Animals, Zhanjiang, China
| | - Zhiwen Wang
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524088, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, China; Guangdong Key Laboratory of Control for Diseases of Aquatic Economic Animals, Zhanjiang, China
| | - Jufen Tang
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524088, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, China; Guangdong Key Laboratory of Control for Diseases of Aquatic Economic Animals, Zhanjiang, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen, 518120, China
| | - Bei Wang
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524088, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, China; Guangdong Key Laboratory of Control for Diseases of Aquatic Economic Animals, Zhanjiang, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen, 518120, China
| | - Yishan Lu
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524088, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, China; Guangdong Key Laboratory of Control for Diseases of Aquatic Economic Animals, Zhanjiang, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen, 518120, China
| | - Jia Cai
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524088, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, China; Guangdong Key Laboratory of Control for Diseases of Aquatic Economic Animals, Zhanjiang, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen, 518120, China.
| | - Jichang Jian
- College of Fishery, Guangdong Ocean University, Zhanjiang, 524088, China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, China; Guangdong Key Laboratory of Control for Diseases of Aquatic Economic Animals, Zhanjiang, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen, 518120, China
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Syahputra K, Kania PW, Al-Jubury A, Marnis H, Setyawan AC, Buchmann K. Differential immune gene response in gills, skin, and spleen of rainbow trout Oncorhynchus mykiss infected by Ichthyophthirius multifiliis. PLoS One 2019; 14:e0218630. [PMID: 31220151 PMCID: PMC6586319 DOI: 10.1371/journal.pone.0218630] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 06/05/2019] [Indexed: 01/14/2023] Open
Abstract
Infection of rainbow trout with the parasitic ciliate Ichthyopthirius multifiliis induces differential responses in gills, skin and spleen. A controlled experimental infection was performed and expression of immune-relevant genes in skin, gills, and spleen were recorded by qPCR at day 1 and 8 after parasite exposure. Infection induced a marked reaction involving regulation of innate and adaptive immune genes in rainbow trout at day 8 post-infection. The expression level of a total of 22 out of 24 investigated genes was significantly higher in gills compared to skin reflecting the more sensitive and delicate structure of gills. Especially pro-inflammatory cytokines IL-6, IL-17 C1, regulatory cytokines IL-4/13A, IL-10, TGFβ, complement factor C5, chemokines CK10, CK12, acute phase proteins (precerebellin, hepcidin) and immunoglobulins (IgM, IgT) displayed differential expression levels. The spleen, a central immune organ with no trace of the parasite, showed elevated expression of IgM, IgT, complement factor C5 and chemokine CK10 (compared to skin and gills directly exposed to the parasite), indicating an interaction between the infected surface sites and central immune organs. This communication could be mediated by chemokines CK10 and CK12 and cytokine IL-4/13A and may at least partly explain the establishment of a systemic response in rainbow trout against the parasite.
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Affiliation(s)
- Khairul Syahputra
- Department of Veterinary and Animal Science, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark
- * E-mail:
| | - Per W. Kania
- Department of Veterinary and Animal Science, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark
| | - Azmi Al-Jubury
- Department of Veterinary and Animal Science, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark
| | - Huria Marnis
- Department of Veterinary and Animal Science, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark
| | - Agung Cahyo Setyawan
- Department of Veterinary and Animal Science, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark
| | - Kurt Buchmann
- Department of Veterinary and Animal Science, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg C, Denmark
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Li S, Xie H, Yan Z, Li B, Wu P, Qian X, Zhang X, Wu J, Liu J, Zhao X. Development of a live vector vaccine against infectious hematopoietic necrosis virus in rainbow trout. FISH & SHELLFISH IMMUNOLOGY 2019; 89:516-524. [PMID: 30986537 DOI: 10.1016/j.fsi.2019.04.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 04/08/2019] [Accepted: 04/09/2019] [Indexed: 06/09/2023]
Abstract
Infectious hematopoietic necrosis virus (IHNV) leads to serious disease and economic losses in the salmonid aquaculture industry. The present study aimed to develop an effective and efficient vaccine to protect rainbow trout (Oncorhynchus mykiss) against IHNV infection. Administered via the immersion route, a live vector vaccine containing the regions of the IHNV glycoprotein (G) induced immune responses in rainbow trout. Use of the immersion route induced more-efficient mucosal immunity than intramuscular injection vaccination. IHNV G gene expression was detected in the spleens of rainbow trout at 3, 7 and 15 days post-vaccination (dpv). The G gene expression continuously decreased between 3 and 15 dpv. In addition, the expression of TLR-3, TLR-7 and TLR-8 was upregulated after vaccination, and the highest expression levels of IFN-1, Mx-1, Mx-3, Vig-1 and Vig-2 were observed at 3 dpv. Four markers of the adaptive immune response (CD4, CD8, IgM and IgT) gradually increased. When experimental fish were challenged with IHNV by immersion, significant differences in cumulative percentage mortality were observed in the vaccinated fish and the unvaccinated (empty-plasmid-vaccinated) fish. The relative survival rate was 92% and 6% in the vaccinated group and empty-plasmid group, respectively. Serum antibody levels gradually increased in the vaccinated fish, unlike in the unvaccinated fish, after 7 dpv. Our results suggest there was a significant increase in fish immune responses and resistance to infection with IHNV following administration of the live vector vaccine. Therefore, this live vector vaccine is a promising vaccine that may be utilized to protect rainbow trout against IHNV.
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Affiliation(s)
- Shouhu Li
- College of Veterinary Medicine, Gansu Agricultural University, 1# Yingmencun Road, Lanzhou, 730070, China.
| | - Hongxia Xie
- Center for Fisheries Technology Promotion, 533# Duanjiatan Road, Lanzhou, 730020, China.
| | - Zunqiang Yan
- College of Veterinary Medicine, Gansu Agricultural University, 1# Yingmencun Road, Lanzhou, 730070, China.
| | - Baoyu Li
- Lanzhou Weiteseng Biological Technology Co., Ltd, 102# Yandong Road, Lanzhou, 730050, China.
| | - Pengcheng Wu
- Center for Fisheries Technology Promotion, 533# Duanjiatan Road, Lanzhou, 730020, China.
| | - Xu Qian
- Center for Fisheries Technology Promotion, 533# Duanjiatan Road, Lanzhou, 730020, China.
| | - Xueliang Zhang
- Center for Fisheries Technology Promotion, 533# Duanjiatan Road, Lanzhou, 730020, China.
| | - Jintang Wu
- Lanzhou Weiteseng Biological Technology Co., Ltd, 102# Yandong Road, Lanzhou, 730050, China.
| | - Jixing Liu
- Lanzhou Weiteseng Biological Technology Co., Ltd, 102# Yandong Road, Lanzhou, 730050, China.
| | - Xingxu Zhao
- College of Veterinary Medicine, Gansu Agricultural University, 1# Yingmencun Road, Lanzhou, 730070, China.
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31
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Cho SY, Protzman RA, Kim YO, Vaidya B, Oh MJ, Kwon J, Kim D. Elucidation of mechanism for host response to VHSV infection at varying temperatures in vitro and in vivo through proteomic analysis. FISH & SHELLFISH IMMUNOLOGY 2019; 88:244-253. [PMID: 30802632 DOI: 10.1016/j.fsi.2019.02.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 01/31/2019] [Accepted: 02/18/2019] [Indexed: 06/09/2023]
Abstract
Seasonal temperature has a major influence on the infectivity of pathogens and the host immune system. Viral hemorrhagic septicemia virus (VHSV) is one such pathogen that only causes the mortality of fish at low temperatures. This study aims to discover the host defense mechanism and pathway for resistance to VHSV at higher temperatures. We first observed the VHSV infection patterns at low and higher temperatures in fathead minnow (FHM) cells (20 °C and 28 °C) and zebrafish (15 °C and 25 °C). In comparison to the 20 °C infection, FHM cells infected at 28 °C showed decreased apoptosis, increased cell viability, and reduced VHSV N gene expression. In zebrafish, infection at 25 °C caused no mortality and significantly reduced the N gene copy number in comparison to infection at 15 °C. To explore the antiviral infection mechanisms induced by high temperature in vitro and in vivo, the changes in the proteomic profile were measured through UPLC-MSE analysis. ACADL, PTPN6, TLR1, F7, A2M, and GLI2 were selected as high temperature-specific biomarkers in the FHM cell proteome; and MYH9, HPX, ANTXR1, APOA1, HBZ, and MYH7 were selected in zebrafish. Increased immune response, anticoagulation effects, and the formation of lymphocytes from hematopoietic stem cells were analyzed as functions that were commonly induced by high temperature in vitro and in vivo. Among these biomarkers, GLI2 was predicted as an upstream regulator. When treated with GANT58, a GLI-specific inhibitor, cell viability was further reduced due to GLI2 inhibition during VHSV infection at varying temperatures in FHM cells, and the mortality in zebrafish was induced earlier at the low temperature. Overall, this study discovered a new mechanism for VHSV infection in vitro and in vivo that is regulated by GLI2 protein.
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Affiliation(s)
- Se-Young Cho
- Biological Disaster Analysis Group, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea
| | - Rachael A Protzman
- Biological Disaster Analysis Group, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea; Department of Food Science and Technology and Foodborne Virus Research Center, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Yeong O Kim
- Department of Food Science and Technology and Foodborne Virus Research Center, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Bipin Vaidya
- Department of Food Science and Technology and Foodborne Virus Research Center, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Myung-Joo Oh
- Department of Aqualife Medicine, College of Fisheries and Ocean Science, Chonnam National University, Yeosu, 59626, Republic of Korea
| | - Joseph Kwon
- Biological Disaster Analysis Group, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea.
| | - Duwoon Kim
- Department of Food Science and Technology and Foodborne Virus Research Center, Chonnam National University, Gwangju, 61186, Republic of Korea.
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Muñoz-Atienza E, Aquilino C, Syahputra K, Al-Jubury A, Araújo C, Skov J, Kania PW, Hernández PE, Buchmann K, Cintas LM, Tafalla C. CK11, a Teleost Chemokine with a Potent Antimicrobial Activity. THE JOURNAL OF IMMUNOLOGY 2019; 202:857-870. [PMID: 30610164 DOI: 10.4049/jimmunol.1800568] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 11/28/2018] [Indexed: 01/01/2023]
Abstract
CK11 is a rainbow trout (Oncorhynchus mykiss) CC chemokine phylogenetically related to both mammalian CCL27 and CCL28 chemokines, strongly transcribed in skin and gills in homeostasis, for which an immune role had not been reported to date. In the current study, we have demonstrated that CK11 is not chemotactic for unstimulated leukocyte populations from central immune organs or mucosal tissues but instead exerts a potent antimicrobial activity against a wide range of rainbow trout pathogens. Our results show that CK11 strongly inhibits the growth of different rainbow trout Gram-positive and Gram-negative bacteria, namely Lactococcus garvieae, Aeromonas salmonicida subsp. salmonicida, and Yersinia ruckeri and a parasitic ciliate Ichthyophthirius multifiliis Similarly to mammalian chemokines and antimicrobial peptides, CK11 exerted its antimicrobial activity, rapidly inducing membrane permeability in the target pathogens. Further transcriptional studies confirmed the regulation of CK11 transcription in response to exposure to some of these pathogens in specific conditions. Altogether, our studies related to phylogenetic relations, tissue distribution, and biological activity point to CK11 as a potential common ancestor of mammalian CCL27 and CCL28. To our knowledge, this study constitutes the first report of a fish chemokine with antimicrobial activity, thus establishing a novel role for teleost chemokines in antimicrobial immunity that supports an evolutionary relationship between chemokines and antimicrobial peptides.
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Affiliation(s)
- Estefanía Muñoz-Atienza
- Animal Health Research Centre, National Institute for Agricultural and Food Research, Valdeolmos 28130, Madrid, Spain
| | - Carolina Aquilino
- Animal Health Research Centre, National Institute for Agricultural and Food Research, Valdeolmos 28130, Madrid, Spain
| | - Khairul Syahputra
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C., Denmark; and
| | - Azmi Al-Jubury
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C., Denmark; and
| | - Carlos Araújo
- Grupo de Seguridad y Calidad de los Alimentos por Bacterias Lácticas, Bacteriocinas y Probióticos, Sección Departamental de Nutrición y Ciencia de los Alimentos (Nutrición, Bromatología, Higiene y Seguridad Alimentaria), Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Jakob Skov
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C., Denmark; and
| | - Per W Kania
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C., Denmark; and
| | - Pablo E Hernández
- Grupo de Seguridad y Calidad de los Alimentos por Bacterias Lácticas, Bacteriocinas y Probióticos, Sección Departamental de Nutrición y Ciencia de los Alimentos (Nutrición, Bromatología, Higiene y Seguridad Alimentaria), Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Kurt Buchmann
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C., Denmark; and
| | - Luis M Cintas
- Grupo de Seguridad y Calidad de los Alimentos por Bacterias Lácticas, Bacteriocinas y Probióticos, Sección Departamental de Nutrición y Ciencia de los Alimentos (Nutrición, Bromatología, Higiene y Seguridad Alimentaria), Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Carolina Tafalla
- Animal Health Research Centre, National Institute for Agricultural and Food Research, Valdeolmos 28130, Madrid, Spain;
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Li T, Wang L, Zhang Y, Guo X, Chen X, Zhang F, Yang G, Wen W, Li H. Molecular characterization of three novel perforins in common carp (Cyprinus carpio L.) and their expression patterns during larvae ontogeny and in response to immune challenges. BMC Vet Res 2018; 14:299. [PMID: 30285759 PMCID: PMC6169072 DOI: 10.1186/s12917-018-1613-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 09/13/2018] [Indexed: 02/07/2023] Open
Abstract
Background In the host immune system, perforin is a cytotoxic effector molecule that eliminate virus-infected and malignant cells. Moreover, some recent studies also imply the involvement of perforin in antibacterial immunity. Common carp (Cyprinus carpio L.), one of the most economically important fish species in China, has a high susceptibility to viruses and bacteria. Thus far, in common carp, no data are available regarding the identification and immunologic function of the perforin. Results In the present study, the cDNA and genomic DNA sequences of three perforin isoform genes were cloned and characterized in common carp, named CcPRF1, CcPRF2 and CcPRF3. Amino acid sequences of the three CcPRFs were quite different, with identities ranged from 37.3 to 39.5%. Phylogenetic analysis showed that three CcPRFs, each in a separate sub-branch, possessed closer evolutionary relationship with other teleost perforins, especially with cyprinid fishes, than higher vertebrates. Expression analysis revealed that each CcPRF gene was differentially expressed in all of the nine tested tissues. During larvae ontogeny, each CcPRF displayed a distinct expression pattern, while with a common expression peak at 22 days post hatching (dph). Moreover, in vivo or in vitro, after stimulation with polyI:C, LPS and Aeromonas hydrophila, each CcPRF was induced significantly, with differential expression dynamics. Conclusions Our findings suggest that perforin might play significant roles in larval immune system and in the immune defense of common carp against viral and bacterial pathogens. Meantime, the differential expression dynamics seem to imply possible different cellular locations or functional differences across various CcPRF isoforms. Electronic supplementary material The online version of this article (10.1186/s12917-018-1613-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ting Li
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, 250014, China
| | - Lei Wang
- Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
| | - Yonghuan Zhang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, 250014, China
| | - Xinyi Guo
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, 250014, China
| | - Xinze Chen
- National Life Science and Technology Training Base, Nanjing Agricultural University, Nanjing, 210000, China
| | - Fumiao Zhang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, 250014, China
| | - Guiwen Yang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, 250014, China
| | - Wujun Wen
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, 250014, China.
| | - Hua Li
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, 250014, China.
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Abram QH, Fujiki K, Booman M, Chin-Dixon E, Wei G, Dixon B. Characterization of cDNA clones encoding major histocompatibility class II receptors from walleye (Sander vitreus). Mol Immunol 2018; 103:106-114. [PMID: 30245265 DOI: 10.1016/j.molimm.2018.09.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 09/14/2018] [Accepted: 09/14/2018] [Indexed: 01/28/2023]
Abstract
The teleost major histocompatibility (MH) class II receptor presents peptides from exogenous sources to CD4+ T cells, leading to the initiation of the adaptive immune response. The genes encoding MH class II have been identified in a number of teleost species, but not in walleye, an important recreational fish and commercial fishery in North America. In this study, we cloned and characterized the sequences encoding walleye MH class II α and β chains. These sequences contained all of the domains typical for functional MH class II α and β chain proteins, and aligned with other teleost sequences of MH class II. The walleye MH class II α amino acid sequence, along with other members of the Supraorder Percomorpharia, contains a high concentration of methionine residues in the beginning of the leader peptide. Southern blotting indicated that there is more than one gene copy for both MH class II α and β, while northern blotting analysis of both genes showed that expression of these genes is greatest in lymphoid tissues and at potential entry points for pathogens. These results help to further the understanding of MH class II receptors in teleosts, and could prove useful in the study of disease issues in walleye such as dermal sarcoma virus.
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Affiliation(s)
- Quinn H Abram
- Department of Biology, University of Waterloo, 200 University Ave West, Waterloo, Ontario, N2L 3G1, Canada
| | - Kazuhiro Fujiki
- Department of Biology, University of Waterloo, 200 University Ave West, Waterloo, Ontario, N2L 3G1, Canada
| | - Marije Booman
- Department of Biology, University of Waterloo, 200 University Ave West, Waterloo, Ontario, N2L 3G1, Canada
| | - Emily Chin-Dixon
- Department of Biology, University of Waterloo, 200 University Ave West, Waterloo, Ontario, N2L 3G1, Canada
| | - Guang Wei
- Department of Biology, University of Waterloo, 200 University Ave West, Waterloo, Ontario, N2L 3G1, Canada
| | - Brian Dixon
- Department of Biology, University of Waterloo, 200 University Ave West, Waterloo, Ontario, N2L 3G1, Canada.
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Xu MX, Ge CX, Qin YT, Gu TT, Lou DS, Li Q, Hu LF, Tan J. Multicombination Approach Suppresses Listeria monocytogenes-Induced Septicemia-Associated Acute Hepatic Failure: The Role of iRhom2 Signaling. Adv Healthc Mater 2018; 7:e1800427. [PMID: 29944201 DOI: 10.1002/adhm.201800427] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 05/26/2018] [Indexed: 12/18/2022]
Abstract
The mortality rate of acute liver failure significantly increases due to fatal septicemia. Inactive rhomboid protein 2 (iRhom2) is an essential regulator of shedding TNF-α by trafficking with TNF-α converting enzyme (TACE). Fisetin, a flavonoid present in various fruits and plants, possesses anti-oxidative stress and anti-inflammatory activities. Here, multi-combination nanoparticles Fe@Au conjugated with fisetin, iRhom2 small interfering RNA (siRNA), and TNF-α inhibitor (FN) are prepared to examine their effects on fatal septicemia-associated hepatic failure induced by Listeria monocytogenes (LM) in mice and to reveal the underlying mechanisms. After LM infection, upregulation of glutamic-oxalacetic transaminease, glutamic-pyruvic transaminase, alkaline phosphatase, TNF-α, malondialdehyde, H2 O2 , and O2- is observedcompared to FN-treated mice. The iRhom2/TACE/TNF-α signals are enhanced in vivo and in vitro, resulting in oxidative stress, which is especially associated with the activation of kupffer cells and other macrophages. Decrease in Nrf2 activation and increase of inflammation-associated regulators are also noted in vivo and in vitro. Furthermore, overexpression of TNF-α derived from macrophages aggravates hepatic failure. Inversely, the processes above are restored by FN nanoparticles through the regulation of the iRhom2/TACE/TNF-α axis and Nrf2 activation. These findings suggest that FN may be a potential approach to protect against bacterial septicemia-related diseases by targeting iRhom2.
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Affiliation(s)
- Min-Xuan Xu
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir Region; School of Biological and Chemical Engineering; Chongqing University of Education; Chongqing 400067 P. R. China
- Research Center of Brain Intellectual Promotion and Development for Children Aged 0-6 Years; Chongqing University of Education; Chongqing 400067 P. R. China
| | - Chen-Xu Ge
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir Region; School of Biological and Chemical Engineering; Chongqing University of Education; Chongqing 400067 P. R. China
- Research Center of Brain Intellectual Promotion and Development for Children Aged 0-6 Years; Chongqing University of Education; Chongqing 400067 P. R. China
| | - Yu-Ting Qin
- School of Medicine and Pharmacy; Ocean University of China; Qingdao 266100 P. R. China
| | - Ting-Ting Gu
- College of Engineering and Applied Sciences; Nanjing University; Nanjing 210023 P. R. China
| | - De-Shuai Lou
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir Region; School of Biological and Chemical Engineering; Chongqing University of Education; Chongqing 400067 P. R. China
- Research Center of Brain Intellectual Promotion and Development for Children Aged 0-6 Years; Chongqing University of Education; Chongqing 400067 P. R. China
| | - Qiang Li
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir Region; School of Biological and Chemical Engineering; Chongqing University of Education; Chongqing 400067 P. R. China
- Research Center of Brain Intellectual Promotion and Development for Children Aged 0-6 Years; Chongqing University of Education; Chongqing 400067 P. R. China
| | - Lin-Feng Hu
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir Region; School of Biological and Chemical Engineering; Chongqing University of Education; Chongqing 400067 P. R. China
- Research Center of Brain Intellectual Promotion and Development for Children Aged 0-6 Years; Chongqing University of Education; Chongqing 400067 P. R. China
| | - Jun Tan
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir Region; School of Biological and Chemical Engineering; Chongqing University of Education; Chongqing 400067 P. R. China
- Research Center of Brain Intellectual Promotion and Development for Children Aged 0-6 Years; Chongqing University of Education; Chongqing 400067 P. R. China
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Soleto I, Morel E, Martín D, Granja AG, Tafalla C. Regulation of IgM + B Cell Activities by Rainbow Trout APRIL Reveals Specific Effects of This Cytokine in Lower Vertebrates. Front Immunol 2018; 9:1880. [PMID: 30150995 PMCID: PMC6099200 DOI: 10.3389/fimmu.2018.01880] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 07/30/2018] [Indexed: 12/16/2022] Open
Abstract
Tumor necrosis factor ligand superfamily members such as B cell activating factor (BAFF) and a proliferation-inducing ligand (APRIL) have been identified in mammals as key regulators of B cell homeostasis and activation. However, the immune functions of APRIL are not as well defined as those of BAFF. Furthermore, while BAFF is present in all vertebrates, APRIL is missing in some animal groups, suggesting that BAFF has compensated the functions of APRIL in these species. In this context, we thought of great interest to explore the effects of APRIL on teleost B cells, given that APRIL appears for the first time in evolution in bony fish. Thus, in this study, we have performed an extensive analysis of the effect of APRIL on B cells using rainbow trout (Oncorhynchus mykiss) as a model species. Our results demonstrate that APRIL induces a specific proliferation of IgM+ B cells by itself and increases IgM secretion without promoting a terminal differentiation to plasma cells. APRIL also increased the levels of surface MHC II and augmented the capacity of these cells to process antigen, effects that were exclusively exerted on IgM+ B cells. Although our results point to a highly conserved role of APRIL on B cell homeostasis and activation throughout evolution, some specific differential effects have been observed in fish in comparison to the effects of APRIL previously described in mammals. Finally, the effects that APRIL induces on rainbow trout IgM+ B cells described in this paper have been compared with those previously reported in response to BAFF.
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Affiliation(s)
- Irene Soleto
- Fish Immunology and Pathology Laboratory, Center for Animal Health Research (CISA-INIA), Madrid, Spain
| | - Esther Morel
- Fish Immunology and Pathology Laboratory, Center for Animal Health Research (CISA-INIA), Madrid, Spain
| | - Diana Martín
- Fish Immunology and Pathology Laboratory, Center for Animal Health Research (CISA-INIA), Madrid, Spain
| | - Aitor G Granja
- Fish Immunology and Pathology Laboratory, Center for Animal Health Research (CISA-INIA), Madrid, Spain
| | - Carolina Tafalla
- Fish Immunology and Pathology Laboratory, Center for Animal Health Research (CISA-INIA), Madrid, Spain
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Karami AM, Bani A, Pourkazemi M, Ghasemi M, Kania PW, Buchmann K. Comparative susceptibilities and immune reactions of wild and cultured populations of Caspian trout Salmo trutta caspius to VHSV. DISEASES OF AQUATIC ORGANISMS 2018; 128:187-201. [PMID: 29862977 DOI: 10.3354/dao03231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Caspian trout Salmo trutta caspius is an endangered subspecies of brown trout Salmo trutta which is native to the Caspian Sea. Restocking programmes have been established, but recent introduction of the rhabdovirus viral haemorrhagic septicaemia virus (VHSV) into Iranian rainbow trout farms connected to waterbodies supporting wild Caspian trout may represent an additional threat to the declining stock. The susceptibility of wild and cultured populations of this endemic subspecies was demonstrated by performing controlled VHSV infection experiments (both by bath and injection challenges). Subsequently, VHSV infection in exposed fish was confirmed (CPE and quantitative PCR), virus levels were measured, and regulation of immune genes in exposed fish was investigated with a focus on the genes encoding IL-8, IFNγ, TGFβ, TNFα, SAA, C3-4, CD8α, IgM, MHC I, MHC II, iNOS and IGF-1. The presence of IgM-, CD8α- and MHC II-positive cells in host organs was visualized by immunohistochemistry. Both wild and cultured trout strains proved to be VHSV-susceptible following experimental challenge, but the mortality curves and associated regulation of immune-related genes differed between the 2 trout types. Implications of the results for future management of Caspian trout populations are discussed.
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Affiliation(s)
- Asma Mohammad Karami
- Department of Biology, Faculty of Science, University of Guilan, Rasht 4199613776, Iran
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38
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Loughery JR, Kidd KA, Mercer A, Martyniuk CJ. Part B: Morphometric and transcriptomic responses to sub-chronic exposure to the polycyclic aromatic hydrocarbon phenanthrene in the fathead minnow (Pimephales promelas). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 199:77-89. [PMID: 29621673 DOI: 10.1016/j.aquatox.2018.03.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 03/21/2018] [Accepted: 03/21/2018] [Indexed: 06/08/2023]
Abstract
Phenanthrene is a tricyclic polycyclic aromatic hydrocarbon and environmental contaminant found in high concentrations around urban catchments and in the vicinity of oil extraction activities. Fish exposed to phenanthrene can exhibit altered reproductive hormone profiles and/or differences within gonadosomatic index and altered gamete proportions, but the mechanisms underlying these changes are not fully understood. In this study, we conducted a sub-chronic bioassay and measured transcriptional responses in the liver, the major tissue involved in generating lipids for oocyte growth. Adult male and female fathead minnow (Pimephales promelas) were exposed to an average measured concentration of 202 μg phenanthrene/L for a 7 week period. Condition factor was reduced in both males and females, while female fish also showed decreased gonadosomatic index relative to control females. In females exposed to phenanthrene, perinucleolar proportions were increased ∼1.9-fold relative to the control group whereas the proportions of vitellogenic oocytes decreased ∼8.8 fold. In males exposed to phenanthrene, spermatogonia proportions were increased ∼2.3 fold in testicular tissues compared to control fish. Thus, gametes were at an earlier stage of maturation in phenanthrene-treated fish compared to controls. However, no differences were detected in the production of 17β-estradiol or testosterone from the gonad in either sex. Catalase activity was also assessed in the liver as a measure of oxidative stress and this biomarker did not change in activity in either sex. In addition to endpoints in the ovary, the female hepatic transcriptome was measured, as this tissue produces lipids for oocyte maturation. Transcriptomic responses to phenanthrene exposure suggested a reduction in vitellogenin mRNA, and lipid metabolism and immune system pathways. Comparisons of hepatic transcriptome responses with Part A (72 h phenanthrene exposure) showed that energy homeostasis pathways were consistently altered following phenanthrene exposure over multiple durations and concentrations. We suggest that altered energy homeostasis may be adversely affecting reproductive efforts, as impaired reproduction has been observed in other studies investigating polycyclic aromatic hydrocarbons.
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Affiliation(s)
- Jennifer R Loughery
- University of New Brunswick, Department of Biological Sciences and Canadian Rivers Institute, 100 Tucker Park Rd., Saint John, NB, E2L 4L5, Canada
| | - Karen A Kidd
- University of New Brunswick, Department of Biological Sciences and Canadian Rivers Institute, 100 Tucker Park Rd., Saint John, NB, E2L 4L5, Canada
| | - Angella Mercer
- University of New Brunswick, Department of Biological Sciences and Canadian Rivers Institute, 100 Tucker Park Rd., Saint John, NB, E2L 4L5, Canada
| | - Chris J Martyniuk
- University of New Brunswick, Department of Biological Sciences and Canadian Rivers Institute, 100 Tucker Park Rd., Saint John, NB, E2L 4L5, Canada.
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Abos B, Estensoro I, Perdiguero P, Faber M, Hu Y, Díaz Rosales P, Granja AG, Secombes CJ, Holland JW, Tafalla C. Dysregulation of B Cell Activity During Proliferative Kidney Disease in Rainbow Trout. Front Immunol 2018; 9:1203. [PMID: 29904385 PMCID: PMC5990594 DOI: 10.3389/fimmu.2018.01203] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 05/14/2018] [Indexed: 11/15/2022] Open
Abstract
Proliferative kidney disease (PKD) is a widespread disease caused by the endoparasite Tetracapsuloides bryosalmonae (Myxozoa: Malacosporea). Clinical disease, provoked by the proliferation of extrasporogonic parasite stages, is characterized by a chronic kidney pathology with underlying transcriptional changes indicative of altered B cell responses and dysregulated T-helper cell-like activities. Despite the relevance of PKD to European and North American salmonid aquaculture, no studies, to date, have focused on further characterizing the B cell response during the course of this disease. Thus, in this work, we have studied the behavior of diverse B cell populations in rainbow trout (Oncorhynchus mykiss) naturally infected with T. bryosalmonae at different stages of preclinical and clinical disease. Our results show a clear upregulation of all trout immunoglobulins (Igs) (IgM, IgD, and IgT) demonstrated by immunohistochemistry and Western blot analysis, suggesting the alteration of diverse B cell populations that coexist in the infected kidney. Substantial changes in IgM, IgD, and IgT repertoires were also identified throughout the course of the disease further pointing to the involvement of the three Igs in PKD through what appear to be independently regulated mechanisms. Thus, our results provide strong evidence of the involvement of IgD in the humoral response to a specific pathogen for the first time in teleosts. Nevertheless, it was IgT, a fish-specific Ig isotype thought to be specialized in mucosal immunity, which seemed to play a prevailing role in the kidney response to T. bryosalmonae. We found that IgT was the main Ig coating extrasporogonic parasite stages, IgT+ B cells were the main B cell subset that proliferated in the kidney with increasing kidney pathology, and IgT was the Ig for which more significant changes in repertoire were detected. Hence, although our results demonstrate a profound dysregulation of different B cell subsets during PKD, they point to a major involvement of IgT in the immune response to the parasite. These results provide further insights into the pathology of PKD that may facilitate the future development of control strategies.
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Affiliation(s)
- Beatriz Abos
- Centro de Investigación en Sanidad Animal (CISA-INIA), Madrid, Spain
| | - Itziar Estensoro
- Centro de Investigación en Sanidad Animal (CISA-INIA), Madrid, Spain.,Fish Pathology Group, Institute of Aquaculture Torre de la Sal (IATS-CSIC) Castellón, Madrid, Spain
| | - Pedro Perdiguero
- Centro de Investigación en Sanidad Animal (CISA-INIA), Madrid, Spain
| | - Marc Faber
- Scottish Fish Immunology Research Centre, Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Yehfang Hu
- Scottish Fish Immunology Research Centre, Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | | | - Aitor G Granja
- Centro de Investigación en Sanidad Animal (CISA-INIA), Madrid, Spain
| | - Christopher J Secombes
- Scottish Fish Immunology Research Centre, Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Jason W Holland
- Scottish Fish Immunology Research Centre, Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Carolina Tafalla
- Centro de Investigación en Sanidad Animal (CISA-INIA), Madrid, Spain
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40
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Zeng C, Tang X, Du Y, Sheng X, Xing J, Zhan W. Dynamic distribution of formalin-inactivated Edwardsiella tarda in olive flounder (Paralichthys olivaceus) post intramuscular injection. Vet Immunol Immunopathol 2018; 199:53-60. [DOI: 10.1016/j.vetimm.2018.03.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 03/02/2018] [Accepted: 03/21/2018] [Indexed: 11/25/2022]
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Yang Y, Han T, Xiao J, Li X, Wang J. Transcriptome analysis reveals carbohydrate-mediated liver immune responses in Epinephelus akaara. Sci Rep 2018; 8:639. [PMID: 29330509 PMCID: PMC5766613 DOI: 10.1038/s41598-017-18990-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 12/20/2017] [Indexed: 11/09/2022] Open
Abstract
As the cheapest energy source, carbohydrates are used in fish feeds to improve physical quality and reduce catabolism of proteins and lipids. The liver is the primary organ for metabolism and is also an important site of immune regulation. Here, we investigated the effect of different dietary carbohydrate levels on growth and health by evaluating the liver transcriptome of Epinephelus akaara. In this study, E. akaara juveniles were fed diets containing few (0% corn starch), moderate (18% corn starch), and high (30% corn starch) levels of dietary carbohydrate. After an 8-week feeding trial, E. akaara fed 30% dietary carbohydrates exhibited poor growth performance compared with those fed 0% and 18% dietary carbohydrates (P > 0.05). Genes related to the immune system, including IL8, TLR9, CXCR4, CCL4, and NFκB inhibitor alpha, were over-expressed in E. akaara fed the highest level of carbohydrate (30%). This general over-expression could indicate activation of inflammatory processes in the liver. The liver transcriptome data of E. akaara reported here indicate that high carbohydrate level of diet can lead to poor growth and inflammatory immune response in E. akaara.
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Affiliation(s)
- Yunxia Yang
- Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
| | - Tao Han
- Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
| | - Jia Xiao
- Department of Immunobiology, Jinan University, Guangzhou, China
| | - Xinyu Li
- Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China
| | - Jiteng Wang
- Department of Aquaculture, Zhejiang Ocean University, Zhoushan, China.
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Li T, Li H, Peng S, Zhang F, An L, Yang G. Molecular characterization and expression pattern of X box-binding protein-1 (XBP1) in common carp (Cyprinus carpio L.): Indications for a role of XBP1 in antibacterial and antiviral immunity. FISH & SHELLFISH IMMUNOLOGY 2017; 67:667-674. [PMID: 28663129 DOI: 10.1016/j.fsi.2017.06.055] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 06/23/2017] [Accepted: 06/24/2017] [Indexed: 05/05/2023]
Abstract
X box-binding protein-1 (XBP1) is a transcription factor that is essential for the unfolded protein response (UPR) and the differentiation of plasma cells, and some findings have also uncovered its function in innate immunity. XBP1 typically has two different transcripts, un-spliced (XBP1u) and spliced forms (XBP1s), but XBP1s is an active transcription factor in the regulation of target genes. To date, there is no evidence about the identification and function of XBP1 in common carp. Moreover, no data are currently available regarding the role of fish XBP1 in innate immunity. Thus, to determine whether XBP1 is involved in innate immune response in common carp, we cloned CcXBP1s and examined the expression of XBP1s and a XBP1s stimulated gene (IL-6) after Aeromonas hydrophila (A. hydrophila) and polyinosinic-polycytidylic acid (polyI:C) challenges. The results imply that CcXBP1s, as an active transcription factor, might play regulation roles in the antibacterial and antiviral innate immune responses of common carp. This allows us to gain new insights into the immunological function of XBP1 in fish innate immunity and the evolution of this important class of genes across vertebrates.
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Affiliation(s)
- Ting Li
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan 250014, PR China
| | - Hua Li
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan 250014, PR China
| | - Shaoqing Peng
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan 250014, PR China
| | - Fumiao Zhang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan 250014, PR China
| | - Liguo An
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan 250014, PR China.
| | - Guiwen Yang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan 250014, PR China.
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43
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Kumar R, Sahoo PK, Barat A. Transcriptome profiling and expression analysis of immune responsive genes in the liver of Golden mahseer (Tor putitora) challenged with Aeromonas hydrophila. FISH & SHELLFISH IMMUNOLOGY 2017; 67:655-666. [PMID: 28655594 DOI: 10.1016/j.fsi.2017.06.053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Revised: 06/22/2017] [Accepted: 06/23/2017] [Indexed: 06/07/2023]
Abstract
Transcriptome profiling has been used to decipher the novel mechanisms behind immune responses of the fishes. However, the molecular mechanism underlining immune response in mahseer is not studied so far. Fishes are greatly affected by bacterial pathogens such as Aeromonas hydrophila. In this study, transcriptome response of golden mahseer (Tor putitora) infected with A. hydrophila was examined using paired end Illumina sequencing of liver tissue to understand the immune response of the fish. The de novo assembly generated 61,042 unigenes ranging from 200 to 9322 bp in length and an average length of 463 bp. The gene ontology annotations resulted a total of 131,826 term assignments to the annotated transcriptome including 60,846 (46.16%) allocations from the biological process; 21,603 (16.39%) from molecular function and 49,377 (37.46%) from cellular components. Differential gene expression analysis of the transcriptome data from challenged and control group revealed 1104 upregulated and 1304 down-regulated unigenes. The differentially expressed genes were mainly involved in the pathways including cell surface receptor signaling, TH1 and TH2 cell differentiation, pathogen recognition, and immune system process/defense response especially complement cascade. Twelve unigenes including ankyrin, serum amyloid, hsp4b, STAT3, complement factor c3 and c7 were validated using qPCR and found differentially expressed in accordance with in silico expression analysis. The results obtained in this study will provide the first and crucial information on the molecular mechanism of mahseer fishes against bacterial infection.
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Affiliation(s)
- Rohit Kumar
- ICAR-Directorate of Coldwater Fisheries Research, Bhimtal, 263136 Nainital, Uttarakhand, India
| | - Prabhati K Sahoo
- ICAR-Directorate of Coldwater Fisheries Research, Bhimtal, 263136 Nainital, Uttarakhand, India
| | - Ashoktaru Barat
- ICAR-Directorate of Coldwater Fisheries Research, Bhimtal, 263136 Nainital, Uttarakhand, India.
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44
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Gao FX, Wang Y, Zhang QY, Mou CY, Li Z, Deng YS, Zhou L, Gui JF. Distinct herpesvirus resistances and immune responses of three gynogenetic clones of gibel carp revealed by comprehensive transcriptomes. BMC Genomics 2017; 18:561. [PMID: 28738780 PMCID: PMC5525251 DOI: 10.1186/s12864-017-3945-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 07/13/2017] [Indexed: 01/25/2023] Open
Abstract
Background Gibel carp is an important aquaculture species in China, and a herpesvirus, called as Carassius auratus herpesvirus (CaHV), has hampered the aquaculture development. Diverse gynogenetic clones of gibel carp have been identified or created, and some of them have been used as aquaculture varieties, but their resistances to herpesvirus and the underlying mechanism remain unknown. Results To reveal their susceptibility differences, we firstly performed herpesvirus challenge experiments in three gynogenetic clones of gibel carp, including the leading variety clone A+, candidate variety clone F and wild clone H. Three clones showed distinct resistances to CaHV. Moreover, 8772, 8679 and 10,982 differentially expressed unigenes (DEUs) were identified from comparative transcriptomes between diseased individuals and control individuals of clone A+, F and H, respectively. Comprehensive analysis of the shared DEUs in all three clones displayed common defense pathways to the herpesvirus infection, activating IFN system and suppressing complements. KEGG pathway analysis of specifically changed DEUs in respective clones revealed distinct immune responses to the herpesvirus infection. The DEU numbers identified from clone H in KEGG immune-related pathways, such as “chemokine signaling pathway”, “Toll-like receptor signaling pathway” and others, were remarkably much more than those from clone A+ and F. Several IFN-related genes, including Mx1, viperin, PKR and others, showed higher increases in the resistant clone H than that in the others. IFNphi3, IFI44-like and Gig2 displayed the highest expression in clone F and IRF1 uniquely increased in susceptible clone A+. In contrast to strong immune defense in resistant clone H, susceptible clone A+ showed remarkable up-regulation of genes related to apoptosis or death, indicating that clone A+ failed to resist virus offensive and evidently induced apoptosis or death. Conclusions Our study is the first attempt to screen distinct resistances and immune responses of three gynogenetic gibel carp clones to herpesvirus infection by comprehensive transcriptomes. These differential DEUs, immune-related pathways and IFN system genes identified from susceptible and resistant clones will be beneficial to marker-assisted selection (MAS) breeding or molecular module-based resistance breeding in gibel carp. Electronic supplementary material The online version of this article (doi:10.1186/s12864-017-3945-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Fan-Xiang Gao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yang Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Qi-Ya Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Cheng-Yan Mou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhi Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Yuan-Sheng Deng
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Li Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
| | - Jian-Fang Gui
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
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Buonocore F, Stocchi V, Nunez-Ortiz N, Randelli E, Gerdol M, Pallavicini A, Facchiano A, Bernini C, Guerra L, Scapigliati G, Picchietti S. Immunoglobulin T from sea bass (Dicentrarchus labrax L.): molecular characterization, tissue localization and expression after nodavirus infection. BMC Mol Biol 2017; 18:8. [PMID: 28298204 PMCID: PMC5353873 DOI: 10.1186/s12867-017-0085-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 03/11/2017] [Indexed: 11/10/2022] Open
Abstract
Background Immunoglobulins (Igs) are fundamental components of the adaptive immune system of vertebrates, with the IgT/IgZ isotype specific of Teleosts. In this paper we describe the identification of an IgT heavy chain from the European sea bass (Dicentrarchus labrax L.), its molecular characterization and tissue mRNA localization by in situ hybridization. Results Sea bass IgT consists of 552 aa (Accession Number KM410929) and it contains a putative 19 amino acids long signal peptide and one potential N-glycosylation site. The C-region consists of four CH domains; each contains the cysteine and tryptophan residues required for their correct folding. Based on the recent sequencing of sea bass genome, we have identified five different genomic contigs bearing exons unequivocally pertaining to IgT (CH2, CH3 and CH4), but none corresponded to a complete IgH locus as IgT sequences were found in the highly fragmented assembled genomic regions which could not be assigned to any major scaffold. The 3D structure of sea bass IgT has been modelled using the crystal structure of a mouse Ig gamma as a template, thus showing that the amino acid sequence is suitable for the expected topology referred to an immunoglobulin-like architecture. The basal expression of sea bass IgT and IgM in different organs has been analysed: gut and gills, important mucosal organs, showed high IgT transcripts levels and this was the first indication of the possible involvement of sea bass IgT in mucosal immune responses. Moreover, sea bass IgT expression increased in gills and spleen after infection with nodavirus, highlighting the importance of IgT in sea bass immune responses. In situ hybridization confirmed the presence of IgT transcripts in the gut and it revealed a differential expression along the intestinal tract, with a major expression in the posterior intestine, suggesting the hindgut as a site for the recruitment of IgT+ cells in this species. IgT transcripts were also found in gill filaments and parallel lamellae and, for the first time, we identified scattered IgT positive cells in the liver, with a strong signal in the hepatic parenchyma. Conclusions In conclusion, we performed a full molecular characterization of IgT in sea bass that points out its possible involvement in mucosal immune responses of this species.
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Affiliation(s)
- Francesco Buonocore
- Department for Innovation in Biological, Agro-food and Forest Systems, University of Tuscia, Largo dell'Università snc, 05100, Viterbo, VT, Italy.
| | - Valentina Stocchi
- Department for Innovation in Biological, Agro-food and Forest Systems, University of Tuscia, Largo dell'Università snc, 05100, Viterbo, VT, Italy
| | - Noelia Nunez-Ortiz
- Department for Innovation in Biological, Agro-food and Forest Systems, University of Tuscia, Largo dell'Università snc, 05100, Viterbo, VT, Italy
| | - Elisa Randelli
- Department for Innovation in Biological, Agro-food and Forest Systems, University of Tuscia, Largo dell'Università snc, 05100, Viterbo, VT, Italy
| | - Marco Gerdol
- Department of Life Sciences, University of Trieste, Via Giorgieri 5, 34127, Trieste, TS, Italy
| | - Alberto Pallavicini
- Department of Life Sciences, University of Trieste, Via Giorgieri 5, 34127, Trieste, TS, Italy
| | - Angelo Facchiano
- Institute of Food Science, CNR, Via Roma, 64, 83100, Avellino, AV, Italy
| | - Chiara Bernini
- Department for Innovation in Biological, Agro-food and Forest Systems, University of Tuscia, Largo dell'Università snc, 05100, Viterbo, VT, Italy
| | - Laura Guerra
- Department for Innovation in Biological, Agro-food and Forest Systems, University of Tuscia, Largo dell'Università snc, 05100, Viterbo, VT, Italy
| | - Giuseppe Scapigliati
- Department for Innovation in Biological, Agro-food and Forest Systems, University of Tuscia, Largo dell'Università snc, 05100, Viterbo, VT, Italy
| | - Simona Picchietti
- Department for Innovation in Biological, Agro-food and Forest Systems, University of Tuscia, Largo dell'Università snc, 05100, Viterbo, VT, Italy
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Hwang JY, Kwon MG, Jung SH, Park MA, Kim DW, Cho WS, Park JW, Son MH. RNA-Seq transcriptome analysis of the olive flounder (Paralichthys olivaceus) kidney response to vaccination with heat-inactivated viral hemorrhagic septicemia virus. FISH & SHELLFISH IMMUNOLOGY 2017; 62:221-226. [PMID: 28108340 DOI: 10.1016/j.fsi.2017.01.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 01/06/2017] [Accepted: 01/13/2017] [Indexed: 06/06/2023]
Abstract
Viral hemorrhagic septicemia (VHS) is a highly contagious disease of cultured flounder caused by VHS virus (VHSV). To develop effective VHSV vaccines, it is essential to understand the molecular mechanisms underlying the host's protective response against VHSV. The purpose of this study is to clarify which genes are involved in the protective response of olive flounder after VHSV vaccination. We first injected olive flounder intraperitoneally with 107 TCID50 heat-inactivated VHSV vaccine and evaluated the vaccine efficacy at 20 °C. Fish vaccinated with heat-inactivated VHSV were significantly protected compared to non-vaccinated fish, with a relative percentage survival of 83%. To analyze the vaccination-induced changes in the expression profiles of genes, kidneys were collected from control and vaccinated fish at days 1, 3, and 7 after vaccination and global gene expression profiling was carried out by RNA sequencing. The analysis revealed that 15,001 genes were differentially expressed by at least 2-fold between vaccinated fish and non-vaccinated controls. Of these, 58 genes clustered into the acute phase response, Toll-like receptor, interferon-inducible/regulatory proteins, and apoptosis pathways. These data provided insights into the molecular mechanisms underlying the protective immune response of olive flounder against heat-inactivated VHSV vaccine and might aid future studies to develop a highly immunogenic vaccine against VHSV in flounder.
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Affiliation(s)
- Jee Youn Hwang
- Aquatic Disease Control Division, National Institute of Fisheries Science, 216 GijangHaean-Ro, Gijang-up, Gijang-Gun, Busan 46083, Republic of Korea.
| | - Mun Gyeoung Kwon
- Aquatic Disease Control Division, National Institute of Fisheries Science, 216 GijangHaean-Ro, Gijang-up, Gijang-Gun, Busan 46083, Republic of Korea.
| | - Sung-Hee Jung
- Pathology Division, National Institute of Fisheries Science, 216 GijangHaean-Ro, Gijang-up, Gijang-Gun, Busan 46083, Republic of Korea.
| | - Myoung Ae Park
- Southeast Sea Fisheries Research Institute, National Institute of Fisheries Science (NIFS), Tongyeong 650-943, Republic of Korea.
| | - Dong-Wook Kim
- AllBT Co., Ltd., O1-315 Ho, Internet Business Incubation Center, Mokweon University, 88 Doanbuk-ro, Seo-gu, Daejeon 302-729, Republic of Korea.
| | - Wang Sik Cho
- AllBT Co., Ltd., O1-315 Ho, Internet Business Incubation Center, Mokweon University, 88 Doanbuk-ro, Seo-gu, Daejeon 302-729, Republic of Korea.
| | - Jeong Woo Park
- Department of Biological Sciences, University of Ulsan, Ulsan 680-749, Republic of Korea.
| | - Maeng-Hyun Son
- Aquatic Disease Control Division, National Institute of Fisheries Science, 216 GijangHaean-Ro, Gijang-up, Gijang-Gun, Busan 46083, Republic of Korea.
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Lee YM, Yang IJ, Noh JK, Kim HC, Park CJ, Park JW, Noh GE, Kim WJ, Kim KK. Expression Analysis of Lily Type Lectin Isotypes in the Rock Bream, Oplegnathus fasciatus: in the Tissue, Developmental Stage and Viral Infection. Dev Reprod 2017; 20:297-304. [PMID: 28144635 PMCID: PMC5282973 DOI: 10.12717/dr.2016.20.4.297] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 11/17/2016] [Accepted: 12/10/2016] [Indexed: 01/16/2023]
Abstract
Lectins belong to the pattern-recognition receptors (PRRs) class and play
important roles in the recognition and elimination of pathogens via the innate
immune system. Recently, it was reported that lily-type lectin-1 is involved
when a pathogen attacks in the early immune response of fish. However, this
study is limited to information that the lectin is involved in the innate immune
response against viral infection. In the present study, the lily-type lectin-2
and -3 of Oplegnathus fasciatus (OfLTL-2 and 3) have been
presented to be included B-lectin domain and two D-mannose binding sites in the
amino acid sequence that an important feature for the fundamental structure. To
investigate the functional properties of OfLTLs, the tissue distribution in the
healthy rock bream and temporal expression during early developmental stage
analysis are performed using quantitative real-time PCR. OfLTL-2 and 3 are
predominantly expressed in the liver and skin, but rarely expressed in other
organ. Also, the transcripts of OfLTLs are not expressed during the early
developmental stage but its transcripts are increased after immune-related
organs which are fully formed. In the challenge experiment with RBIV (rock bream
iridovirus), the expression of OfLTLs was increased much more strongly in the
late response than the early, unlike previously known. These results suggest
that OfLTLs are specifically expressed in the immune-related tissues when those
organs are fully formed and it can be inferred that the more intensively
involved in the second half to the virus infection.
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Affiliation(s)
- Young Mee Lee
- Genetics and Breeding Research Center, National Institute of Fisheries Science (NIFS), Geoje 53334, Republic of Korea
| | - In Jung Yang
- Genetics and Breeding Research Center, National Institute of Fisheries Science (NIFS), Geoje 53334, Republic of Korea
| | - Jae Koo Noh
- Genetics and Breeding Research Center, National Institute of Fisheries Science (NIFS), Geoje 53334, Republic of Korea
| | - Hyun Chul Kim
- Genetics and Breeding Research Center, National Institute of Fisheries Science (NIFS), Geoje 53334, Republic of Korea
| | - Choul-Ji Park
- Genetics and Breeding Research Center, National Institute of Fisheries Science (NIFS), Geoje 53334, Republic of Korea
| | - Jong-Won Park
- Genetics and Breeding Research Center, National Institute of Fisheries Science (NIFS), Geoje 53334, Republic of Korea
| | - Gyeong Eon Noh
- Genetics and Breeding Research Center, National Institute of Fisheries Science (NIFS), Geoje 53334, Republic of Korea
| | - Woo-Jin Kim
- Genetics and Breeding Research Center, National Institute of Fisheries Science (NIFS), Geoje 53334, Republic of Korea
| | - Kyung-Kil Kim
- Genetics and Breeding Research Center, National Institute of Fisheries Science (NIFS), Geoje 53334, Republic of Korea
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48
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Szwejser E, Verburg-van Kemenade BML, Maciuszek M, Chadzinska M. Estrogen-dependent seasonal adaptations in the immune response of fish. Horm Behav 2017; 88:15-24. [PMID: 27760301 DOI: 10.1016/j.yhbeh.2016.10.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 10/13/2016] [Accepted: 10/14/2016] [Indexed: 12/21/2022]
Abstract
Clinical and experimental evidence shows that estrogens affect immunity in mammals. Less is known about this interaction in the evolutionary older, non-mammalian, vertebrates. Fish form an excellent model to identify evolutionary conserved neuroendocrine-immune interactions: i) they are the earliest vertebrates with fully developed innate and adaptive immunity, ii) immune and endocrine parameters vary with season, and iii) physiology is constantly disrupted by increasing contamination of the aquatic environment. Neuro-immuno-endocrine interactions enable adaption to changing internal and external environment and are based on shared signaling molecules and receptors. The presence of specific estrogen receptors on/in fish leukocytes, implies direct estrogen-mediated immunoregulation. Fish leukocytes most probably are also capable to produce estrogens as they express the cyp19a and cyp19b - genes, encoding aromatase cytochrome P450, the enzyme critical for conversion of C19 steroids to estrogens. Immunoregulatory actions of estrogens, vary among animal species, and also with dose, target cell type, or physiological condition (e.g., infected/non-infected, reproductive status). They moreover are multifaceted. Interestingly, season-dependent changes in immune status correlate with changes in the levels of circulating sex hormones. Whereas E2 circulating in the bloodstream is perhaps the most likely candidate to be the physiological mediator of systemic immune-reproductive trade-offs, leukocyte-derived hormones are hypothesized to be mainly involved in local tuning of the immune response. Contamination of the aquatic environment with estrogenic EDCs may violate the delicate and precise allostatic interactions between the endogenous estrogen system and the immune system. This has negative effects on fish health, but will also affect the physiology of its consumers.
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Affiliation(s)
- Ewa Szwejser
- Department of Evolutionary Immunology, Institute of Zoology, Jagiellonian University, Gronostajowa 9, PL30-387 Krakow, Poland
| | - B M Lidy Verburg-van Kemenade
- Cell Biology and Immunology Group, Dept of Animal Sciences, Wageningen University, P.O. Box 338, 6700 AH Wageningen, The Netherlands
| | - Magdalena Maciuszek
- Department of Evolutionary Immunology, Institute of Zoology, Jagiellonian University, Gronostajowa 9, PL30-387 Krakow, Poland
| | - Magdalena Chadzinska
- Department of Evolutionary Immunology, Institute of Zoology, Jagiellonian University, Gronostajowa 9, PL30-387 Krakow, Poland.
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49
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Piazzon MC, Galindo-Villegas J, Pereiro P, Estensoro I, Calduch-Giner JA, Gómez-Casado E, Novoa B, Mulero V, Sitjà-Bobadilla A, Pérez-Sánchez J. Differential Modulation of IgT and IgM upon Parasitic, Bacterial, Viral, and Dietary Challenges in a Perciform Fish. Front Immunol 2016; 7:637. [PMID: 28082977 PMCID: PMC5186763 DOI: 10.3389/fimmu.2016.00637] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 12/12/2016] [Indexed: 02/01/2023] Open
Abstract
Three different immunoglobulin (Ig) isotypes can be found in teleost fish, IgM, IgD, and the teleost-specific IgT. IgM is considered to have a systemic activity, and IgT is attributed a mucosal role, similar to mammalian IgA. In this study, the complete sequence of gilthead sea bream IgM and IgT in their membrane (m) and soluble (s) forms are described for the first time in a perciform fish. Their constitutive gene expression is analyzed in different tissues, and their regulation upon viral, bacterial, parasitic, mucosal vaccination and dietary challenges are studied. GCB IgM and IgT have the prototypical structure when compared to other fish Igs. The constitutive expression of sIgM was the highest overall in all tissues, whereas mIgT expression was highest in mucosal tissues, such as gills and intestine. IgM and IgT were differentially regulated upon infection. IgT was highly upregulated locally upon infection with the intestinal parasite Enteromyxum leei or systemically after Nodavirus infection. Long-term intestinal parasitic infections increased the serum titer of both isotypes. Mucosal vaccination against Photobacterium damselae subsp. piscicida finely regulated the Ig response inducing a systemic increase of IgM titers in serum and a local IgT response in skin mucus when animals were exposed to the pathogen by bath challenge. Interestingly, plant-based diets inhibit IgT upregulation upon intestinal parasitic challenge, which was related to a worse disease outcome. All these results corroborate the mucosal role of IgT and emphasize the importance of a finely tuned regulation of Ig isotypes upon infection, which could be of special interest in vaccination studies.
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Affiliation(s)
- Maria C Piazzon
- Instituto de Acuicultura Torre de la Sal, Consejo Superior de Investigaciones Científicas (IATS-CSIC) , Castellón , Spain
| | - Jorge Galindo-Villegas
- Department of Cell Biology and Histology, Faculty of Biology, Biomedical Research Institute of Murcia (IMIB-Arrixaca-UMU), University of Murcia , Murcia , Spain
| | - Patricia Pereiro
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (IIM-CSIC) , Vigo , Spain
| | - Itziar Estensoro
- Instituto de Acuicultura Torre de la Sal, Consejo Superior de Investigaciones Científicas (IATS-CSIC) , Castellón , Spain
| | - Josep A Calduch-Giner
- Instituto de Acuicultura Torre de la Sal, Consejo Superior de Investigaciones Científicas (IATS-CSIC) , Castellón , Spain
| | - Eduardo Gómez-Casado
- Department of Biotechnology, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) , Madrid , Spain
| | - Beatriz Novoa
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (IIM-CSIC) , Vigo , Spain
| | - Victoriano Mulero
- Department of Cell Biology and Histology, Faculty of Biology, Biomedical Research Institute of Murcia (IMIB-Arrixaca-UMU), University of Murcia , Murcia , Spain
| | - Ariadna Sitjà-Bobadilla
- Instituto de Acuicultura Torre de la Sal, Consejo Superior de Investigaciones Científicas (IATS-CSIC) , Castellón , Spain
| | - Jaume Pérez-Sánchez
- Instituto de Acuicultura Torre de la Sal, Consejo Superior de Investigaciones Científicas (IATS-CSIC) , Castellón , Spain
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50
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Brown M, Hablützel P, Friberg IM, Thomason AG, Stewart A, Pachebat JA, Jackson JA. Seasonal immunoregulation in a naturally-occurring vertebrate. BMC Genomics 2016; 17:369. [PMID: 27189372 PMCID: PMC4870750 DOI: 10.1186/s12864-016-2701-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Accepted: 05/06/2016] [Indexed: 11/10/2022] Open
Abstract
Background Fishes show seasonal patterns of immunity, but such phenomena are imperfectly understood in vertebrates generally, even in humans and mice. As these seasonal patterns may link to infectious disease risk and individual condition, the nature of their control has real practical implications. Here we characterize seasonal dynamics in the expression of conserved vertebrate immunity genes in a naturally-occurring piscine model, the three-spined stickleback. Results We made genome-wide measurements (RNAseq) of whole-fish mRNA pools (n = 36) at the end of summer and winter in contrasting habitats (riverine and lacustrine) and focussed on common trends to filter habitat-specific from overarching temporal responses. We corroborated this analysis with targeted year-round whole-fish gene expression (Q-PCR) studies in a different year (n = 478). We also considered seasonal tissue-specific expression (6 tissues) (n = 15) at a third contrasting (euryhaline) locality by Q-PCR, further validating the generality of the patterns seen in whole fish analyses. Extremes of season were the dominant predictor of immune expression (compared to sex, ontogeny or habitat). Signatures of adaptive immunity were elevated in late summer. In contrast, late winter was accompanied by signatures of innate immunity (including IL-1 signalling and non-classical complement activity) and modulated toll-like receptor signalling. Negative regulators of T-cell activity were prominent amongst winter-biased genes, suggesting that adaptive immunity is actively down-regulated during winter rather than passively tracking ambient temperature. Network analyses identified a small set of immune genes that might lie close to a regulatory axis. These genes acted as hubs linking summer-biased adaptive pathways, winter-biased innate pathways and other organismal processes, including growth, metabolic dynamics and responses to stress and temperature. Seasonal change was most pronounced in the gill, which contains a considerable concentration of T-cell activity in the stickleback. Conclusions Our results suggest major and predictable seasonal re-adjustments of immunity. Further consideration should be given to the effects of such responses in seasonally-occurring disease. Electronic supplementary material The online version of this article (doi:10.1186/s12864-016-2701-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Martha Brown
- IBERS, Aberystwyth University, Aberystwyth, SY23 3DA, UK
| | | | - Ida M Friberg
- School of Environment and Life sciences, University of Salford, Salford, M5 4WT, UK
| | - Anna G Thomason
- School of Environment and Life sciences, University of Salford, Salford, M5 4WT, UK
| | - Alexander Stewart
- Cardiff School of Biosciences, University of Cardiff, Cardiff, CF10 3AX, UK
| | | | - Joseph A Jackson
- School of Environment and Life sciences, University of Salford, Salford, M5 4WT, UK.
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