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de Queiróz GA, Silva TMFE, Leal CAG. Duration of Protection and Humoral Immune Response in Nile Tilapia ( Oreochromis niloticus L.) Vaccinated against Streptococcus agalactiae. Animals (Basel) 2024; 14:1744. [PMID: 38929363 PMCID: PMC11200441 DOI: 10.3390/ani14121744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/03/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
Streptococcosis caused by Streptococcus agalactiae (S. agalactiae) is a major bacterial disease affecting the production of Nile tilapia (Oreochromis niloticus L.), causing significant economic losses due to mortality in the growing phase. Vaccination is the most effective method for preventing streptococcosis on Nile tilapia farms. In Brazil, the major tilapia-producing regions have long production cycles (6-10 months) and harvest tilapias weighing over 900 g for fillet production. Thus, data on the duration of the humoral immune response and protection in farmed tilapia have not been reported or are poorly described. Furthermore, the efficiency of serological testing for the long-term monitoring of immune responses induced by vaccination against S. agalactiae has never been addressed. This study evaluated the duration of protection and humoral immune response induced in Nile tilapia vaccinated against S. agalactiae until 300 days post-vaccination (dpv). The immunization trial was composed of two groups: vaccinated (Vac), vaccinated intraperitoneally with a commercial vaccine, and unvaccinated (NonVac) group, injected fish with sterile saline solution. At 15, 30, 150, 180, 210, and 300 dpv, blood sampling was conducted to detect anti-S. agalactiae IgM antibodies using indirect Enzyme-Linked Immunosorbent Assay (ELISA), and the fish were challenged with pathogenic S. agalactiae to determine the duration of vaccine protection through relative percentage survival (RPS). Spearman's rank correlation was performed between the ELISA optical density (OD) of vaccinated tilapia and the duration of vaccine protection (RPS). The mean cumulative mortality in NonVac and Vac groups ranged from 65 to 90% and less than 35%, respectively. The average RPS was 71, 93, 94, 70, 86, and 67% at 15, 30, 150, 180, 210, and 300 dpv, respectively. RPS revealed that the vaccine provided protection from 15 to 300 dpv. The specific anti-S. agalactiae IgM antibody levels were significantly higher in the Vac group than that non-Vac group up to 180 dpv. The vaccinated fish exhibited significant protection for up to 10 months after vaccination. There was a positive correlation between the antibody response and RPS. This study revealed that a single dose of commercial vaccine administered to Nile tilapia can confer long-term protection against S. agalactiae and that indirect ELISA can monitor the duration of the humoral immune response for up to six months following vaccination. Finally, vaccine protection over six months can be associated with other components of the fish immune system beyond the humoral immune response by IgM antibodies.
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Affiliation(s)
| | | | - Carlos Augusto Gomes Leal
- Department of Preventive Veterinary Medicine, Veterinary School, Federal University of Minas Gerais, Belo Horizonte 31270-901, MG, Brazil; (G.A.d.Q.); (T.M.F.e.S.)
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Kumwan B, Bunnoy A, Chatchaiphan S, Kayansamruaj P, Dong HT, Senapin S, Srisapoome P. First Investigation of the Optimal Timing of Vaccination of Nile Tilapia ( Oreochromis niloticus) Larvae against Streptococcus agalactiae. Vaccines (Basel) 2023; 11:1753. [PMID: 38140158 PMCID: PMC10747866 DOI: 10.3390/vaccines11121753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/20/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
To investigate early immune responses and explore the optimal vaccination periods, Nile tilapia at 1, 7, 14, 21, 28, 35, and 42 days after yolk sac collapse (DAYC) were immersed in formalin-killed Streptococcus agalactiae vaccine (FKV-SA). A specific IgM was first detected via ELISA in the 21 DAYC larvae (0.108 g) at 336 h after vaccination (hav), whereas in the 28-42 DAYC larvae (0.330-0.580 g), the specific IgM could be initially detected at 24 hav. qRT-PCR analysis of the TCRβ, CD4, MHCIIα, IgHM, IgHT, and IgHD genes in 21-42 DAYC larvae immunized with the FKV-SA immersion route for 24, 168, and 336 hav revealed that the levels of most immune-related genes were significantly higher in the vaccinated larvae at all DAYCs than in the control larvae (p < 0.05) at 336 hav. Immunohistochemistry demonstrated stronger IgM signals in the gills, head kidney, and intestine tissues at 21, 28, and 35 DAYC in all vaccinated larvae compared with the control. Interestingly, at all DAYCs, FKV-SA larvae exhibited significantly higher survival rates and an increased relative percent survival (RPS) than the control after challenge with viable S. agalactiae, particularly in larvae that were immunized with FKV-SA at 168 and 336 hav (p < 0.05).
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Affiliation(s)
- Benchawan Kumwan
- Laboratory of Aquatic Animal Health Management, Department of Aquaculture, Faculty of Fisheries, Kasetsart University, 50 Paholayothin Road, Ladyao, Chatuchak, Bangkok 10900, Thailand; (B.K.); (A.B.); (P.K.)
- Center of Excellence in Aquatic Animal Health Management, Department of Aquaculture, Faculty of Fisheries, Kasetsart University, 50 Paholayothin Road, Ladyao, Chatuchak, Bangkok 10900, Thailand
| | - Anurak Bunnoy
- Laboratory of Aquatic Animal Health Management, Department of Aquaculture, Faculty of Fisheries, Kasetsart University, 50 Paholayothin Road, Ladyao, Chatuchak, Bangkok 10900, Thailand; (B.K.); (A.B.); (P.K.)
- Center of Excellence in Aquatic Animal Health Management, Department of Aquaculture, Faculty of Fisheries, Kasetsart University, 50 Paholayothin Road, Ladyao, Chatuchak, Bangkok 10900, Thailand
| | - Satid Chatchaiphan
- Department of Aquaculture, Faculty of Fisheries, Kasetsart University, Bangkok 10900, Thailand;
| | - Pattanapon Kayansamruaj
- Laboratory of Aquatic Animal Health Management, Department of Aquaculture, Faculty of Fisheries, Kasetsart University, 50 Paholayothin Road, Ladyao, Chatuchak, Bangkok 10900, Thailand; (B.K.); (A.B.); (P.K.)
- Center of Excellence in Aquatic Animal Health Management, Department of Aquaculture, Faculty of Fisheries, Kasetsart University, 50 Paholayothin Road, Ladyao, Chatuchak, Bangkok 10900, Thailand
| | - Ha Thanh Dong
- Aquaculture and Aquatic Resources Management, Department of Food Agriculture and Bioresources, School of Environment, Resources and Development, Asian Institute of Technology, Pathum Thani 12120, Thailand;
| | - Saengchan Senapin
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
- Fish Health Platform, Center of Excellence for Shrimp Molecular Biology and Biotechnology (Centex Shrimp), Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Prapansak Srisapoome
- Laboratory of Aquatic Animal Health Management, Department of Aquaculture, Faculty of Fisheries, Kasetsart University, 50 Paholayothin Road, Ladyao, Chatuchak, Bangkok 10900, Thailand; (B.K.); (A.B.); (P.K.)
- Center of Excellence in Aquatic Animal Health Management, Department of Aquaculture, Faculty of Fisheries, Kasetsart University, 50 Paholayothin Road, Ladyao, Chatuchak, Bangkok 10900, Thailand
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Kayansamruaj P, Dinh-Hung N, Srisapoome P, Na-Nakorn U, Chatchaiphan S. Genomics-driven prophylactic measures to increase streptococcosis resistance in tilapia. JOURNAL OF FISH DISEASES 2023; 46:597-610. [PMID: 36708284 DOI: 10.1111/jfd.13763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 05/07/2023]
Abstract
Streptococcosis caused by Streptococcus agalactiae and S. iniae is a significant problem that affects the success of tilapia aquaculture industries worldwide. In this critical review, we summarize the applicable practical strategies which may effectively enhance the world tilapia aquaculture development. Recently, the effect of vaccination and selective breeding programmes has been recognized as valuable tools to control the target disease and other consequent negative impacts caused by chemical and drug application. Advances in sequencing and molecular technologies are vital helpful factors with which to develop robust vaccines and increase the selective breeding programme's precision against streptococcosis. The genomic selection for streptococcosis-resistant tilapia strains and crucial genomic application for genomics' contribution to the development of novel Streptococcus vaccine, comparative genomics approach identifying vaccine candidates by reverse vaccinology, and next-generation vaccine design were described. Information from our review is encouraging for practical implementation of the development of vaccination and genomic selection in tilapia for streptococcosis resistance, which may be vital factors to sustain the world tilapia aquaculture industry effectively.
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Affiliation(s)
- Pattanapon Kayansamruaj
- Department of Aquaculture, Faculty of Fisheries, Kasetsart University, Bangkok, Thailand
- Center of Excellence in Aquatic Animal Health Management, Faculty of Fisheries, Kasetsart University, Bangkok, Thailand
| | - Nguyen Dinh-Hung
- Center of Excellence in Fish Infectious Diseases (CE FID), Department of Veterinary Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Prapansak Srisapoome
- Department of Aquaculture, Faculty of Fisheries, Kasetsart University, Bangkok, Thailand
- Center of Excellence in Aquatic Animal Health Management, Faculty of Fisheries, Kasetsart University, Bangkok, Thailand
| | - Uthairat Na-Nakorn
- Department of Aquaculture, Faculty of Fisheries, Kasetsart University, Bangkok, Thailand
- Academy of Science, The Royal Society of Thailand, Bangkok, Thailand
| | - Satid Chatchaiphan
- Department of Aquaculture, Faculty of Fisheries, Kasetsart University, Bangkok, Thailand
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Wu S, Meng K, Wu Z, Sun R, Han G, Qin D, He Y, Qin C, Deng P, Cao J, Ji W, Zhang L, Xu Z. Expression analysis of Igs and mucosal immune responses upon SVCV infection in common carp (Cyprinus carpio L.). FISH AND SHELLFISH IMMUNOLOGY REPORTS 2022; 3:100048. [PMID: 36419606 PMCID: PMC9680059 DOI: 10.1016/j.fsirep.2021.100048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 12/22/2021] [Accepted: 12/22/2021] [Indexed: 12/03/2022] Open
Abstract
The immunoglobulin (Ig) is a crucial component of adaptive immune system in vertebrates including teleost fish. Here complete cDNA sequence of IgD heavy chain gene from common carp (Cyprinus carpio) was cloned and analyzed. The full-length cDNA of IgD heavy chain gene contained an open reading frame (ORF) of 2460 bp encoding 813 amino acids. According to amino acids sequence, multiple alignment and phylogenetic analysis showed that carp Igs are closely related to those of Cyprinidae fish. Transcriptional expression of IgD as well as IgM, IgZ1 and IgZ2 showed similar expression patterns in different organs, this is, high expression level in systemic immune tissues (ie, head kidney, heart and spleen) and low expression in mucosal tissues (ie, gill, skin and gut). Following viral infection with spring viraemia of carp virus (SVCV), obvious pathological changes in skin, gill and gut mucosa and up-regulated expression of antiviral related genes in skin, gill, gut and spleen were observed, indicating that SVCV successfully infected common carp and activated the systemic and mucosal immune system. Interestingly, IgM showed a significant up-regulation only in systemic tissue (spleen), but not in mucosal tissues (gut, gills and skin), while increased expression of IgZ1 and IgZ2 was found in gut. In contrast, the expression of IgD increased significantly in spleen, gills and skin. These strongly suggest that fish Ig isotypes play different roles in mucosal and systemic immunity during viral infection. Common carp (Cyprinus carpio); Igs; Spring viraemia of carp virus (SVCV)
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Linh NV, Dien LT, Sangpo P, Senapin S, Thapinta A, Panphut W, St-Hilaire S, Rodkhum C, Dong HT. Pre-treatment of Nile tilapia (Oreochromis niloticus) with ozone nanobubbles improve efficacy of heat-killed Streptococcus agalactiae immersion vaccine. FISH & SHELLFISH IMMUNOLOGY 2022; 123:229-237. [PMID: 35288305 DOI: 10.1016/j.fsi.2022.03.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 02/13/2022] [Accepted: 03/09/2022] [Indexed: 06/14/2023]
Abstract
Nanobubble technology has shown appealing technical benefits and potential applications in aquaculture. We recently found that treatment with ozone nanobubbles (NB-O3) activated expression of several immune-related genes leading to effective response to subsequent exposure to fish pathogens. In this study, we investigated whether pre-treatment of Nile tilapia (Oreochromis niloticus) with NB-O3 can enhance specific immune responses and improve efficacy of immersion vaccination against Streptococcus agalactiae. Spleen and head kidney of fish in the vaccinated groups showed a substantial upregulation in expression levels of pro-inflammatory cytokine genes (IL-1β, TNF-α, IL-6) and immunoglobulin classes (IgM, IgD, IgT) compared with the unvaccinated control groups. The mRNA transcript of pro-inflammatory cytokine genes was greatest (approx. 2.8-3.3 folds) on day 7 post-vaccination, whereas the relative expression of immunoglobulin genes was greatest (approx. 3.2-4.1 folds) on day 21 post-immunization. Both systemic and mucosal IgM antibodies were elicited in vaccinated groups. As the result, the cumulative survival rate of the vaccinated groups was found to be higher than that of the unvaccinated groups, with a relative percent survival (RPS) ranging from 52.9 to 70.5%. However, fish in the vaccinated groups that received pre-treatment with NB-O3, bacterial antigen uptakes, expression levels of IL-1β, TNF-α, IL-6,IgM, IgD, and IgT, as well as the specific-IgM antibody levels and percent survival, were all slightly or significantly higher than that of the vaccinated group without pre-treatment with NB-O3. Taken together, our findings suggest that utilizing pre-treatment with NB-O3 may improve the immune response and efficacy of immersion vaccination in Nile tilapia.
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Affiliation(s)
- Nguyen Vu Linh
- Center of Excellence in Fish Infectious Diseases (CE FID), Department of Veterinary Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Le Thanh Dien
- Faculty of Applied Technology, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, 71415, Viet Nam
| | - Pattiya Sangpo
- Fish Health Platform, Centex of Excellence for Shrimp Molecular Biology and Biotechnology (Centex Shrimp), Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Saengchan Senapin
- Fish Health Platform, Centex of Excellence for Shrimp Molecular Biology and Biotechnology (Centex Shrimp), Faculty of Science, Mahidol University, Bangkok, 10400, Thailand; National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand
| | - Anat Thapinta
- Faculty of Science and Technology, Suan Sunandha Rajabhat University, Bangkok, 10300, Thailand
| | - Wattana Panphut
- Faculty of Science and Technology, Suan Sunandha Rajabhat University, Bangkok, 10300, Thailand
| | - Sophie St-Hilaire
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong
| | - Channarong Rodkhum
- Center of Excellence in Fish Infectious Diseases (CE FID), Department of Veterinary Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Ha Thanh Dong
- Faculty of Science and Technology, Suan Sunandha Rajabhat University, Bangkok, 10300, Thailand; Department of Food, Agriculture and Bioresources, School of Environment, Resources and Development, Asian Institute of Technology, Pathum Thani, 12120, Thailand.
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6
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Mai TT, Kayansamruaj P, Taengphu S, Senapin S, Costa JZ, del‐Pozo J, Thompson KD, Rodkhum C, Dong HT. Efficacy of heat-killed and formalin-killed vaccines against Tilapia tilapinevirus in juvenile Nile tilapia (Oreochromis niloticus). JOURNAL OF FISH DISEASES 2021; 44:2097-2109. [PMID: 34477227 PMCID: PMC9291230 DOI: 10.1111/jfd.13523] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 08/03/2021] [Accepted: 08/03/2021] [Indexed: 06/02/2023]
Abstract
Tilapia tilapinevirus (also known as tilapia lake virus, TiLV) is considered to be a new threat to the global tilapia industry. The objective of this study was to develop simple cell culture-based heat-killed (HKV) and formalin-killed (FKV) vaccines for the prevention of disease caused by TiLV. The fish were immunized with 100 µl of either HKV or FKV by intraperitoneal injection with each vaccine containing 1.8 × 106 TCID50- inactivated virus. A booster vaccination was carried out at 21-day post-vaccination (dpv) using the same protocol. The fish were then challenged with a lethal dose of TiLV at 28 dpv. The expression of five immune genes (IgM, IgD, IgT, CD4 and CD8) in the head kidney and spleen of experimental fish was assessed at 14 and 21 dpv and again after the booster vaccination at 28 dpv. TiLV-specific IgM responses were measured by ELISA at the same time points. The results showed that both vaccines conferred significant protection, with relative percentage survival of 71.3% and 79.6% for HKV and FKV, respectively. Significant up-regulation of IgM and IgT was observed in the head kidney of fish vaccinated with HKV at 21 dpv, while IgM, IgD and CD4 expression increased in the head kidney of fish receiving FKV at the same time point. After booster vaccination, IgT and CD8 transcripts were significantly increased in the spleen of fish vaccinated with the HKV, but not with FKV. Both vaccines induced a specific IgM response in both serum and mucus. In summary, this study showed that both HKV and FKV are promising injectable vaccines for the prevention of disease caused by TiLV in Nile tilapia.
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Affiliation(s)
- Thao Thu Mai
- Center of Excellence in Fish Infectious Diseases (CE FID), Department of Veterinary MicrobiologyFaculty of Veterinary ScienceChulalongkorn UniversityBangkokThailand
- The International Graduate Program of Veterinary Science and Technology (VST)Faculty of Veterinary ScienceChulalongkorn UniversityBangkokThailand
- Division of Aquacultural BiotechnologyBiotechnology Center of Ho Chi Minh CityHo Chi MinhVietnam
| | - Pattanapon Kayansamruaj
- Center of Excellence in Aquatic Animal Health ManagementFaculty of FisheriesKasetsart UniversityBangkokThailand
| | - Suwimon Taengphu
- Fish Health PlatformCenter of Excellence for Shrimp Molecular Biology and Biotechnology (Centex Shrimp)Faculty of ScienceMahidol UniversityBangkokThailand
- National Center for Genetic Engineering and Biotechnology (BIOTEC)National Science and Technology Development Agency (NSTDA)Pathum ThaniThailand
| | - Saengchan Senapin
- Fish Health PlatformCenter of Excellence for Shrimp Molecular Biology and Biotechnology (Centex Shrimp)Faculty of ScienceMahidol UniversityBangkokThailand
- National Center for Genetic Engineering and Biotechnology (BIOTEC)National Science and Technology Development Agency (NSTDA)Pathum ThaniThailand
| | - Janina Z. Costa
- Aquaculture Research GroupMoredun Research InstituteEdinburghUK
| | - Jorge del‐Pozo
- Infection and Immunity DivisionRoslin InstituteEdinburghUK
| | - Kim D. Thompson
- Aquaculture Research GroupMoredun Research InstituteEdinburghUK
| | - Channarong Rodkhum
- Center of Excellence in Fish Infectious Diseases (CE FID), Department of Veterinary MicrobiologyFaculty of Veterinary ScienceChulalongkorn UniversityBangkokThailand
- The International Graduate Program of Veterinary Science and Technology (VST)Faculty of Veterinary ScienceChulalongkorn UniversityBangkokThailand
| | - Ha Thanh Dong
- Faculty of Science and TechnologySuan Sunandha Rajabhat UniversityBangkokThailand
- Department of Food, Agriculture and BioresourcesSchool of Environment, Resources and DevelopmentAsian Institute of TechnologyPathum ThaniThailand
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Salinas I, Fernández-Montero Á, Ding Y, Sunyer JO. Mucosal immunoglobulins of teleost fish: A decade of advances. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 121:104079. [PMID: 33785432 PMCID: PMC8177558 DOI: 10.1016/j.dci.2021.104079] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/22/2021] [Accepted: 03/22/2021] [Indexed: 05/03/2023]
Abstract
Immunoglobulins (Igs) are complex glycoproteins that play critical functions in innate and adaptive immunity of all jawed vertebrates. Given the unique characteristics of mucosal barriers, secretory Igs (sIgs) have specialized to maintain homeostasis and keep pathogens at bay at mucosal tissues from fish to mammals. In teleost fish, the three main IgH isotypes, IgM, IgD and IgT/Z can be found in different proportions at the mucosal secretions of the skin, gills, gut, nasal, buccal, and pharyngeal mucosae. Similar to the role of mammalian IgA, IgT plays a predominant role in fish mucosal immunity. Recent studies in IgT have illuminated the primordial role of sIgs in both microbiota homeostasis and pathogen control at mucosal sites. Ten years ago, IgT was discovered to be an immunoglobulin class specialized in mucosal immunity. Aiming at this 10-year anniversary, the goal of this review is to summarize the current status of the field of fish Igs since that discovery, while identifying knowledge gaps and future avenues that will move the field forward in both basic and applied science areas.
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Affiliation(s)
- Irene Salinas
- Center for Evolutionary and Theoretical Immunology (CETI), Department of Biology, University of New Mexico, Albuquerque, NM 87131, USA.
| | - Álvaro Fernández-Montero
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Yang Ding
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - J Oriol Sunyer
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.
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Velázquez J, Rodríguez A, Aragón H, Haidar A, González M, Valdés R, Garay HE, Abreu DD, Ramos Y, Cabrales A, Morales A, González O, Herrera F, Estrada MP, Carpio Y. Monoclonal antibody against Nile tilapia (Oreochromis niloticus) IgM heavy chain: A valuable tool for detection and quantification of IgM and IgM + cells. FISH & SHELLFISH IMMUNOLOGY 2021; 110:44-54. [PMID: 33348037 DOI: 10.1016/j.fsi.2020.12.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 11/26/2020] [Accepted: 12/15/2020] [Indexed: 06/12/2023]
Abstract
Nile tilapia (Oreochromis niloticus) is a freshwater fish, which is extensively cultivated worldwide and constitutes one of the model species for the study of fish immunology. Monoclonal antibodies are very advantageous molecular tools for studying teleost immune system. Specifically, monoclonal antibodies that react with immunoglobulins are used successfully in the study of the humoral immune response of several fish species. In the present study, we produced and characterized a monoclonal antibody against tilapia IgM heavy chain using a peptide-based strategy. The peptide sequence was selected from the surface-exposed region between CH3-CH4 domains. The specificity of the polyclonal serum and the hybridoma culture supernatant obtained by immunization with the peptide conjugated to keyhole limpet hemocyanin were evaluated by western blotting, both showing reactivity against tilapia serum IgM. The purified mAb was able to recognize secreted IgM by western blotting and ELISA and membrane IgM by flow cytometry. We also demonstrated that the antibody doesn't cross-react with a recombinant IgT fragment. This tool allowed us to study for the first time the stimulation of mucosal immunity after Pituitary Adenylate Cyclase Activating Polypeptide administration. Overall, the results demonstrated the utility of this mAb to characterize humoral immune response in O. niloticus.
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Affiliation(s)
- Janet Velázquez
- Animal Biotechnology Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - Alianet Rodríguez
- Animal Biotechnology Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - Hasel Aragón
- Monoclonal Antibodies Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - Arlette Haidar
- Animal Biotechnology Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - Marcos González
- Monoclonal Antibodies Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - Rodolfo Valdés
- Monoclonal Antibodies Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - Hilda Elsa Garay
- Peptides Synthesis Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - David Diago Abreu
- Peptides Synthesis Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - Yassel Ramos
- Proteomics Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - Ania Cabrales
- Analytic and Purification Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - Antonio Morales
- Animal Biotechnology Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - Osmany González
- Animal Biotechnology Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - Fidel Herrera
- Animal Biotechnology Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - Mario Pablo Estrada
- Animal Biotechnology Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba.
| | - Yamila Carpio
- Animal Biotechnology Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba.
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The Use of Extracellular Membrane Vesicles for Immunization against Francisellosis in Nile Tilapia ( Oreochromis niloticus) and Atlantic Cod ( Gadus morhua L.). Vaccines (Basel) 2021; 9:vaccines9010034. [PMID: 33435503 PMCID: PMC7827370 DOI: 10.3390/vaccines9010034] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/31/2020] [Accepted: 01/04/2021] [Indexed: 11/17/2022] Open
Abstract
Francisellosis in fish is caused by the facultative intracellular Gram-negative bacterial pathogens Francisella noatunensis ssp. noatunensis and Francisella orientalis. The disease is affecting both farmed and wild fish worldwide and no commercial vaccines are currently available. In this study, we tested isolated membrane vesicles (MVs) as possible vaccine candidates based on previous trials in zebrafish (Danio rerio) indicating promising vaccine efficacy. Here, the MV vaccine-candidates were tested in their natural hosts, Atlantic cod (Gadus morhua L.) and Nile tilapia (Oreochromis niloticus). Injection of MVs did not display any toxicity or other negative influence on the fish and gene expression analysis indicated an influence on the host immune response. However, unlike in other tested fish species, a protective immunity following vaccine application and immunization period could not be detected in the Atlantic cod or tilapia. Further in vivo studies are required to achieve a better understanding of the development of immunological memory in different fish species.
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Shen Y, Liang W, Lin Y, Yang H, Chen X, Feng P, Zhang B, Zhu J, Zhang Y, Luo H. Single molecule real-time sequencing and RNA-seq unravel the role of long non-coding and circular RNA in the regulatory network during Nile tilapia (Oreochromis niloticus) infection with Streptococcus agalactiae. FISH & SHELLFISH IMMUNOLOGY 2020; 104:640-653. [PMID: 32544555 DOI: 10.1016/j.fsi.2020.06.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 06/05/2020] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The tilapia aquaculture industry is facing heavy economic losses due to Streptococcus agalactiae (S. agalactiae) infections. While progress has been made in past years, the lack of a high-quality tilapia genome and transcript annotations makes systematic and comprehensive exploration for a non-coding RNA regulatory network associated with the infection process unfeasible, and it stunts further research focused on disease defense and treatment. Herein, single molecular real time sequencing (SMRT-Seq) and RNA-seq data were utilized to generate a high-quality transcript annotation. In addition, Changes in mRNA and non-coding RNA expression were also analyzed during a S. agalactiae infection in tilapia. FINDINGS In total, 16.79 Gb of clean data were obtained by sequencing on six SMRT cells, with 712,294 inserts (326,645 full-length non-chimeric reads and 354,188 non-full-length reads). A total of 197,952 consensus transcripts were obtained. Additionally, 55,857 transcript sequences were acquired, with 12,297 previously annotated and 43,560 newly identified transcripts. To further examine the immune response in Oreochromis niloticus following a S. agalactiae infection, a total of 470.62 Gb of clean data was generated by sequencing a library containing 18 S. agalactiae infected tilapia samples. Of the identified genes, 9911 were newly exploited, of which 7102 were functional annotated. Furthermore, 7874 mRNAs, 1281 long non-coding RNAs (out of 21,860 long non-coding RNAs), and 61 circular RNAs (out of 1026 circular RNAs) were found to be differentially expressed during infection, with the 1026 circRNAs not previously identified in tilapia. Moreover, k-means clustering and WGCNA analyses revealed that the immune response of tilapia to a S. agalactiae infection can be divided into three stages: cytokines driven rapid immune response, energy metabolism promotion, and the production of lysosomes and phagosomes. During this response, the head kidney and spleen have synergistic effects, while maintaining independent characteristics. Finally, lncRNA-mRNA (trans and cis), lncRNA-miRNA-mRNA, and circRNA-miRNA-mRNA regulatory networks were constructed and revealed that non-coding RNA is involved in the regulation of immune-related genes. CONCLUSIONS This study generated a greatly-improved transcript annotation for tilapia using long-read PacBio sequencing technology, and revealed the presence of a regulatory network comprised of non-coding RNAs in Nile tilapia infected with S. agalactiae.
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Affiliation(s)
- Yudong Shen
- College of Fisheries, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Wanwen Liang
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, Guangxi, 530021, PR China
| | - Yong Lin
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, Guangxi, 530021, PR China
| | - Huizan Yang
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, Guangxi, 530021, PR China
| | - Xiaohan Chen
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, Guangxi, 530021, PR China
| | - Pengfei Feng
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, Guangxi, 530021, PR China
| | - Bin Zhang
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, Guangxi, 530021, PR China
| | - Jiajie Zhu
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, Guangxi, 530021, PR China
| | - Yongde Zhang
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, Guangxi, 530021, PR China.
| | - Honglin Luo
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Academy of Fishery Sciences, Nanning, Guangxi, 530021, PR China.
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Bilal S, Lie KK, Dalum AS, Karlsen OA, Hordvik I. Analysis of immunoglobulin and T cell receptor gene expression in ballan wrasse (Labrus bergylta) revealed an extraordinarily high IgM expression in the gut. FISH & SHELLFISH IMMUNOLOGY 2019; 87:650-658. [PMID: 30753920 DOI: 10.1016/j.fsi.2019.02.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 01/21/2019] [Accepted: 02/06/2019] [Indexed: 06/09/2023]
Abstract
The serum IgM concentration of ballan wrasse is relatively high, estimated to approximately 13 mg/ml in adult wild fish of 800 g. The present study revealed an unusual high abundance of IgM mRNA in the gut of ballan wrasse. Initially, transcripts encoding IgM, IgT, IgD, TCRα, TCRδ and CD3ε were quantified by RT-qPCR in several tissues of wild caught fish (approx. 800 g), indicating an elevated immune activity in hindgut and an extraordinarily high expression of IgM. Subsequently, a new RT-qPCR analysis was performed on the entire intestine, cut into four different segments, of reared fish (32-100 g). The analysis indicated immune activity along the entire intestine, but not as strong as in the hindgut. Furthermore, similar to the larger fish, the relative abundance of IgM transcripts was higher in the hindgut than in kidney and spleen, although the absolute level of IgM was in general higher in the larger fish. The secreted form of IgM was completely dominant in comparison to the membrane bound form of IgM and the other analysed genes. IgM was purified from gut mucus and external mucosal surfaces by magnetic beads coated with protein A. Mucus IgM reacted with rabbit antisera raised against serum IgM and contained subunits of the same size. Regarding the elevated immune activity in the intestine it is tempting to speculate on a possible compensatory strategy in this lineage of stomach-less fish, and that natural antibodies have an important role in the first line defence.
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Affiliation(s)
- Sumaira Bilal
- Department of Biological Sciences, University of Bergen, Norway
| | | | | | | | - Ivar Hordvik
- Department of Biological Sciences, University of Bergen, Norway.
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Xu J, Yu Y, Huang Z, Dong S, Luo Y, Yu W, Yin Y, Li H, Liu Y, Zhou X, Xu Z. Immunoglobulin (Ig) heavy chain gene locus and immune responses upon parasitic, bacterial and fungal infection in loach, Misgurnus anguillicaudatus. FISH & SHELLFISH IMMUNOLOGY 2019; 86:1139-1150. [PMID: 30599252 DOI: 10.1016/j.fsi.2018.12.064] [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: 11/08/2018] [Revised: 12/25/2018] [Accepted: 12/27/2018] [Indexed: 06/09/2023]
Abstract
Teleost fish are the most primitive bony vertebrates that contain immunoglobulin (Ig). Although teleost Ig is known to be important during tetrapod evolution and comparative immunology, little is known about the genomic organization of the immunoglobulin heavy-chain (IgH) locus. Here, three Ig isotype classes, IgM, IgD and IgT, were firstly identified in dojo loach (Misgurnus anguillicaudatus), and the IgH locus covering τ, μ and δ genes was also illustrated. Variable (V) gene segments lie upstream of two tandem diversity (D), joining (J) and constant (C) clusters and the genomic organization of the IgH locus presented as Vn-Dn-Jn-Cτ-Dn-Jn-Cμ-Cδ, similar to some other teleost fish. However, unlike some other teleost fish, ten VH, ten D and nine J genes were observed in this locus, which suggest teleost Igs might be conserved and diverse. Thus, it would be interesting to determine how Igs divide among themselves in immune response to different antigens. To address this hypothesis, we have developed three models by bath infection with parasitic, bacterial and fungal pathogens, respectively. We found that IgM, IgD and IgT were highly upregulated in the head kidney and spleen after infection with Ichthyophthirius multifiliis (Ich), suggesting that the three Igs might participate in the systemic immune responses to Ich. Moreover, the high expression of IgT in mucosal tissue, such as skin or gills, appeared after being infected with three different pathogens infection, respectively, in which the expression of IgT increased more rapidly in response to Ich infection. Interestingly, the expression of IgD showed a higher increase in spleen and head kidney being challenged with fungi, suggesting that IgD might play an important role in antifungal infection.
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Affiliation(s)
- Jie Xu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Yongyao Yu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Zhenyu Huang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Shuai Dong
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Yanzhi Luo
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Wei Yu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Yaxing Yin
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Huili Li
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Yangzhou Liu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Xiaoyun Zhou
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Zhen Xu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China.
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Xu J, Zhang X, Luo Y, Wan X, Yao Y, Zhang L, Yu Y, Ai T, Wang Q, Xu Z. IgM and IgD heavy chains of yellow catfish (Pelteobagrus fulvidraco): Molecular cloning, characterization and expression analysis in response to bacterial infection. FISH & SHELLFISH IMMUNOLOGY 2019; 84:233-243. [PMID: 30300742 DOI: 10.1016/j.fsi.2018.10.012] [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: 07/09/2018] [Revised: 10/01/2018] [Accepted: 10/05/2018] [Indexed: 06/08/2023]
Abstract
Three different immunoglobulin (Ig) isotypes, namely IgM, IgD, and IgT/IgZ have been described in most teleost, among which IgM and IgT are considered crucial in systematic and mucosal immunity, respectively. However, some teleost have no IgT/IgZ and it is unclear how other Ig isotypes interact to perform immune-protective roles in both systematic and mucosal sites. In this study, the complete cDNA sequences of IgM and IgD heavy chains were cloned and analyzed from yellow catfish (Pelteobagrus fulvidraco). The full-length cDNA of Pf-IgM and Pf-IgD heavy chains contained an open reading frame (ORF) of 1710 and 2991 bp encoding a predicted protein of 570 and 997 amino acids, respectively. Tissue-specific expression analysis indicated that both IgM and IgD were highly expressed in kidney and spleen, and higher expression levels were found at zygote and 13th day post hatching during early development. Multiple sequence alignment and phylogenetic analysis showed IgM and IgD of yellow catfish are closely related to other fish of Siluriformes. Moreover, we also constructed the infection model of yellow catfish with bacteria (Flavobacterium columnare G4) for the first time to study the function of Pf-IgM and Pf-IgD heavy chain genes in immune response. Quantitative real-time PCR (qRT-PCR) showed that significantly up-regulated expression of Pf-IgM was not only detected in liver and spleen, but also in mucosal tissues including skin and intestine, while Pf-IgD was just significantly increased in liver and spleen, which might suggest the main immune-protecting roles of IgM in mucosal tissues of yellow catfish.
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Affiliation(s)
- Jie Xu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Xiaoting Zhang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Yanzhi Luo
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Xinyu Wan
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Yongtie Yao
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Liqiang Zhang
- Wuhan Academy of Agricultural Sciences, Wuhan, Hubei, 430207, China
| | - Yunzhen Yu
- Wuhan Academy of Agricultural Sciences, Wuhan, Hubei, 430207, China
| | - Taoshan Ai
- Wuhan Academy of Agricultural Sciences, Wuhan, Hubei, 430207, China
| | - Qingchao Wang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China
| | - Zhen Xu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, 430070, China; Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Changde, 415000, China.
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Yu YY, Kong W, Yin YX, Dong F, Huang ZY, Yin GM, Dong S, Salinas I, Zhang YA, Xu Z. Mucosal immunoglobulins protect the olfactory organ of teleost fish against parasitic infection. PLoS Pathog 2018; 14:e1007251. [PMID: 30395648 PMCID: PMC6237424 DOI: 10.1371/journal.ppat.1007251] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 11/15/2018] [Accepted: 10/08/2018] [Indexed: 01/12/2023] Open
Abstract
The olfactory organ of vertebrates receives chemical cues present in the air or water and, at the same time, they are exposed to invading pathogens. Nasal-associated lymphoid tissue (NALT), which serves as a mucosal inductive site for humoral immune responses against antigen stimulation in mammals, is present also in teleosts. IgT in teleosts is responsible for similar functions to those carried out by IgA in mammals. Moreover, teleost NALT is known to contain B-cells and teleost nasal mucus contains immunoglobulins (Igs). Yet, whether nasal B cells and Igs respond to infection remains unknown. We hypothesized that water-borne parasites can invade the nasal cavity of fish and elicit local specific immune responses. To address this hypothesis, we developed a model of bath infection with the Ichthyophthirius multifiliis (Ich) parasite in rainbow trout, Oncorhynchus mykiss, an ancient bony fish, and investigated the nasal adaptive immune response against this parasite. Critically, we found that Ich parasites in water could reach the nasal cavity and successfully invade the nasal mucosa. Moreover, strong parasite-specific IgT responses were detected in the nasal mucus, and the accumulation of IgT+ B-cells was noted in the nasal epidermis after Ich infection. Strikingly, local IgT+ B-cell proliferation and parasite-specific IgT generation were found in the trout olfactory organ, providing new evidence that nasal-specific immune responses were induced locally by a parasitic challenge. Overall, our findings suggest that nasal mucosal adaptive immune responses are similar to those reported in other fish mucosal sites and that an antibody system with a dedicated mucosal Ig performs evolutionary conserved functions across vertebrate mucosal surfaces. The olfactory organ is a vitally important chemosensory organ in vertebrates but it is also continuously stimulated by pathogenic microorganisms in the external environment. In mammals and birds, nasopharynx-associated lymphoid tissue (NALT) is considered one of the first lines of immune defense against inhaled antigens and in bony fish, protecting against water-borne infections. However, although B-cells and immunoglobulins (Igs) have been found in teleost NALT, the defensive mechanisms of parasite-specific immune responses after pathogen challenge in the olfactory organ of teleost fish remain poorly understood. Considering that the NALT of all vertebrates has been subjected to similar evolutionary forces, we hypothesize that mucosal Igs play a critical role in the defense of olfactory systems against parasites. To confirm this hypothesis, we show the local proliferation of IgT+ B-cells and production of pathogen-specific IgT within the nasal mucosa upon parasite infection, indicating that parasite-specific IgT is the main Ig isotype specialized for nasal-adaptive immune responses. From an evolutionary perspective, our findings contribute to expanding our view of nasal immune systems and determining the fate of the host–pathogen interaction.
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Affiliation(s)
- Yong-Yao Yu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Weiguang Kong
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Ya-Xing Yin
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Fen Dong
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Zhen-Yu Huang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Guang-Mei Yin
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Shuai Dong
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Irene Salinas
- Center for Evolutionary and Theoretical Immunology, Department of Biology, University of New Mexico, Albuquerque, New Mexico, United States of America
| | - Yong-An Zhang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Zhen Xu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
- * E-mail:
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Banerjee R, Patel B, Basu M, Lenka SS, Paicha M, Samanta M, Das S. Molecular cloning, characterization and expression of immunoglobulin D on pathogen challenge and pathogen associated molecular patterns stimulation in freshwater carp, Catla catla. Microbiol Immunol 2017; 61:452-458. [DOI: 10.1111/1348-0421.12534] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 08/31/2017] [Indexed: 11/27/2022]
Affiliation(s)
- Rajanya Banerjee
- Laboratory of Environmental Microbiology and Ecology; Department of Life; Science; National Institute of Technology; Rourkela 769008
| | - Bhakti Patel
- Laboratory of Environmental Microbiology and Ecology; Department of Life; Science; National Institute of Technology; Rourkela 769008
| | - Madhubanti Basu
- Fish Health Management Division; Central Institute of Freshwater Aquaculture; Kausalyaganga, Bhubaneswar 751002 Odisha India
| | - Saswati S. Lenka
- Fish Health Management Division; Central Institute of Freshwater Aquaculture; Kausalyaganga, Bhubaneswar 751002 Odisha India
| | - Mahismita Paicha
- Fish Health Management Division; Central Institute of Freshwater Aquaculture; Kausalyaganga, Bhubaneswar 751002 Odisha India
| | - Mrinal Samanta
- Fish Health Management Division; Central Institute of Freshwater Aquaculture; Kausalyaganga, Bhubaneswar 751002 Odisha India
| | - Surajit Das
- Laboratory of Environmental Microbiology and Ecology; Department of Life; Science; National Institute of Technology; Rourkela 769008
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Basu M, Lenka SS, Paichha M, Swain B, Patel B, Banerjee R, Jayasankar P, Das S, Samanta M. Immunoglobulin (Ig) D in Labeo rohita is widely expressed and differentially modulated in viral, bacterial and parasitic antigenic challenges. Vet Immunol Immunopathol 2016; 179:77-84. [DOI: 10.1016/j.vetimm.2016.08.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 07/20/2016] [Accepted: 08/08/2016] [Indexed: 11/29/2022]
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