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Wang F, Xu J, Hu C, Lai J, Shen P, Lu Y, Jiang F. β-glucan improves intestinal health of pearl gentian grouper via activation of the p38 mitogen-activated protein kinase signaling pathway. FISH & SHELLFISH IMMUNOLOGY 2024; 153:109868. [PMID: 39216713 DOI: 10.1016/j.fsi.2024.109868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2024] [Revised: 08/04/2024] [Accepted: 08/28/2024] [Indexed: 09/04/2024]
Abstract
Our previous study has demonstrated that supplementation of yeast β-glucan improves intestinal health in pearl gentian grouper (Epinephelus lanceolatus♂ × Epinephelus fuscoguttatus♀), accompanied by the activation of the mitogen-activated protein kinase (MAPK) signaling pathway. In this study, we investigated the effects of perturbing p38 MAPK activity using an inhibitor on the intestinal health of β-glucan-injected pearl gentian grouper to elucidate the potential molecular mechanism underlying the protective effects of β-glucan on the fish gut. The pearl gentian grouper was categorized into four groups: PBS injected (CD group), β-glucan injected at a dose of 80 mg/kg (βG group), p38 MAPK inhibitor SB203580 injected at a dose of 1 mg/kg (SB203580 group), and a combination of β-glucan (80 mg/kg) and SB203580 (1 mg/kg) injected together (βG + SB203580 group). The results revealed that the introduction of SB203580 significantly suppressed the β-glucan-induced increase in p38α and p38β mRNA expression, as well as the phosphorylation of p38 MAPK. Both the βG group and SB203580 group exhibited reduced plica height and muscularis thickness. The βG + SB203580 group displayed a significant reduction in mucin cell level; interleukin 1β (il1β) mRNA expression; induced nitric oxide synthase, tumor necrosis factor α, and IL1β concentration; catalase and total antioxidant capacity activities. Additionally, there was a significant increase in the levels of intestinal malondialdehyde in the βG + SB203580 group compared to the βG group. The inhibition of the p38 MAPK signaling halted the trend of apoptosis-related caspase molecular expression induced by β-glucan. In conclusion, β-glucan injection resulted in elevated levels of mucous cells, nonspecific immunity, antioxidant capacity, and anti-apoptosis in grouper by modulating the p38 MAPK pathway. This study offers insights into the potential molecular mechanism underlying the protective effects of β-glucan on intestinal health in pearl gentian grouper.
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Affiliation(s)
- Fan Wang
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Marine Sciences, Guangxi Academy of Sciences, Nanning, China; College of Life Science and Technology of Guangxi University, Nanning 530005, Guangxi, China
| | - Jia Xu
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Marine Sciences, Guangxi Academy of Sciences, Nanning, China
| | - Chaoqun Hu
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Marine Sciences, Guangxi Academy of Sciences, Nanning, China
| | - Junxiang Lai
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Marine Sciences, Guangxi Academy of Sciences, Nanning, China
| | - Peihong Shen
- College of Life Science and Technology of Guangxi University, Nanning 530005, Guangxi, China
| | - Yishan Lu
- College of Fishery, Guangdong Ocean University, Zhanjiang 524088, China.
| | - Fajun Jiang
- Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Marine Sciences, Guangxi Academy of Sciences, Nanning, China.
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Braden LM, Michaud D, Groman D, Byrne P, Hori TS, Fast MD. Rejection of Lepeophtheirus salmonis driven in part by chitin sensing is not impacted by seawater acclimitization in Coho salmon (Oncorhynchus kisutch). Sci Rep 2023; 13:9685. [PMID: 37322246 PMCID: PMC10272145 DOI: 10.1038/s41598-023-36632-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 06/07/2023] [Indexed: 06/17/2023] Open
Abstract
There is tremendous variation in life-history strategies among anadromous salmonids. Species that enter the ocean environment at small sizes (< 20 g) are likely under more physiological pressure from pathogens; however, little data is available on responses at these early stages. With this in mind, we performed salmon louse challenges with Coho salmon either immediately after seawater entry (SW; ca. 10 g) or after 30 days in SW (ca. 20 g). Irrespective of size or time in SW, parasites were rapidly rejected by the host, with > 90% of all parasites lost by 16 days post-infection (dpi). Rejection was concomitant with host epithelial granulomatous infiltrations that initially targeted the embedded frontal filament (4 dpi) and the entire parasite by 10 dpi. Illumina sequencing, followed by functional enrichment analysis, revealed a concerted defense response in the fin within 1 dpi that included multiple innate and adaptive immunity components. Strikingly, early indications of an allergic-type inflammatory response were associated with chitin sensing pathways orchestrated by early overexpression of the IgE-receptor, fcer1g. Additionally, there was profound overexpression of several classes of c-type lectin receptors, including dectin-2, mincle, and dc-sign at 1 dpi onward. These profiles and upregulation of cellular effector markers were corroborated by histopathological evaluation, revealing the simultaneous presence of mast cell/eosinophilic granular cells, sacciform cells, macrophages/histiocytes, and granulocytes in fin. At 10 dpi and concurrent with parasite expulsion, there was evidence of immunoregulation in addition to tissue remodelling pathways. At 16 dpi, the response was effectively abrogated. Simultaneous profiling of the parasite transcriptome revealed early induction of chitin metabolism and immunomodulation, toxin production and ECM degradation; however, after 7 dpi, these were replaced with overexpression of stress and immune defense genes. These data present the first evidence for Coho salmon demonstrating chitin- and sugar moiety-sensing as key drivers of salmon louse rejection.
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Affiliation(s)
- Laura M Braden
- Department of Pathology and Microbiology, Atlantic Veterinary College, Charlottetown, PE, Canada
- Department of Fish Health and Molecular Biology, AquaBounty Canada, Souris, PE, Canada
| | - Dylan Michaud
- Department of Pathology and Microbiology, Atlantic Veterinary College, Charlottetown, PE, Canada
| | - David Groman
- Aquatic Diagnostic Services, Atlantic Veterinary College, Charlottetown, PE, Canada
| | - Phil Byrne
- Department of Fisheries and Oceans Canada, Charlottetown, PE, Canada
| | | | - Mark D Fast
- Department of Pathology and Microbiology, Atlantic Veterinary College, Charlottetown, PE, Canada.
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Lu L, Dai S, Liu L, Liu J, Zhang X, Huang X, Ouyang P, Geng Y, Li Z, Chen D. Identification and characterization of high mobility group box 1 and high mobility group box 2 in Siberian sturgeon (Acipenser baerii). Gene 2022; 850:146932. [PMID: 36191827 DOI: 10.1016/j.gene.2022.146932] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/30/2022] [Accepted: 09/26/2022] [Indexed: 11/28/2022]
Abstract
High mobility group box 1 (HMGB1) and high mobility group box 2 (HMGB2) were highly conserved nonhistone chromosomal proteins involved in DNA damage repair, innate immune and inflammatory response. In this study, Acipenser baerii HMGB1 (AbHMGB1) and HMGB 2 (HMGB2) were identified. The open reading frame (ORF) of AbHMGB1 was 621 bp which encoded 206 amino acids, and the ORF of AbHMGB2 was 630 bp encoded 209 amino acids. AbHMGB1 and AbHMGB2 were conserved compared with bony fish by phylogenetic analyzing. qRT-PCR showed that AbHMGB1 and AbHMGB2 were expressed in all examined tissues, AbHMGB1 was expressed abundantly in muscle, followed by head kidney and brain, and AbHMGB2 was highest expressed in gill, followed by brain and muscle. After Streptococcus iniae infection and PAMPs treatment, AbHMGB1 and AbHMGB2 were induced significantly. This study indicated that AbHMGB1 and AbHMGB2 are involved in the process of pathogenic infection and provided a basis for exploring the mechanism of Acipenser baerii enteritis induced by Streptococcus iniae.
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Affiliation(s)
- Lu Lu
- Aquaculture Department, College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Shaotong Dai
- Aquaculture Department, College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Lulu Liu
- Aquaculture Department, College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Jiaxi Liu
- Aquaculture Department, College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Xin Zhang
- Aquaculture Department, College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiaoli Huang
- Aquaculture Department, College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Ping Ouyang
- Research Center of Aquatic Animal Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Yi Geng
- Research Center of Aquatic Animal Diseases, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhiqiong Li
- Aquaculture Department, College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Defang Chen
- Aquaculture Department, College of Animal Science & Technology, Sichuan Agricultural University, Chengdu 611130, China.
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Molecular evolution of kalliklectin in teleost and identification of the novel type with eight apple domains in channel catfish, Ictalurus punctatus. Mol Biol Rep 2021; 48:4305-4318. [PMID: 34125330 DOI: 10.1007/s11033-021-06446-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 05/27/2021] [Indexed: 10/21/2022]
Abstract
Kalliklectin is a unique fish-specific lectin that demonstrates sequence similarity to mammalian plasma kallikrein and coagulation factor XI, which are not lectins but proteases. Reported fish kalliklectins and these mammalian proteases comprise four characteristic "apple domains" (APDs). Bioinformatics analysis revealed that Siluriformes species possess anomalous kalliklectins comprising 6 to 16 APDs. Complementary DNA cloning showed that the full-length nucleotide sequence of Ictalurus punctatus consists of 2240 bp that encode 720 amino acid residues to produce a mature protein with a putative 18 amino acid N-terminus peptide sequence. This protein has a predicted molecular mass of 83,417.23 Da. Reverse transcription-polymerase chain reaction (RT-PCR) showed that this lectin gene expresses in the liver but not in any other tissues, including the mucosal tissues. This differential expression pattern makes this lectin unique compared to other lectins described in previous studies. We successfully detected an 85-kDa protein in the serum using western blotting analysis, suggesting that this lectin protein is produced by the liver and secreted into the bloodstream. We characterized a novel cDNA sequence encoding a new type of kalliklectin with eight APDs isolated from channel catfish, I. punctatus. Based on phylogenetic analysis, we speculated that there was a duplication of the third and fourth APD set in a common Siluriformes ancestor at some point after its separation from the common teleost ancestor and that these duplications then underwent independent repeats in different lineages resulting in the generation of the [APD1]-[APD2]-{[APD3]-[APD-4]} × n structure in modern catfishes.
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Men L, Li Y, Wang X, Li R, Zhang T, Meng X, Liu S, Gong X, Gou M. Protein biomarkers associated with frozen Japanese puffer fish (Takifugu rubripes) quality traits. Food Chem 2020; 327:127002. [PMID: 32438262 DOI: 10.1016/j.foodchem.2020.127002] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 01/15/2023]
Abstract
This study was designed to investigate proteome changes in Japanese puffer fish (Takifugu rubripes) during short- and long-term frozen storage. In total, 1484 proteins were quantified, and 164 proteins were identified as differential abundance proteins (DAPs) in Japanese puffer fish from two frozen storage treatment groups (14 days and 60 days) compared with the fresh control group. Correlation analysis between the DAPs and quality traits of the puffer fish muscle showed that 106 proteins were correlated closely with colour and texture (hardness, elasticity, and chewiness). Bioinformatics analysis revealed and Western blot analysis verified that Putative prothymosin alpha species, Bridging integrator 3, NADH: the ubiquinone oxidoreductase subunit and Mx species are candidate biomarkers for puffer fish properties. This study offers valuable evidence to improve the quality control and monitoring of Japanese puffer fish during transportation and storage.
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Affiliation(s)
- Lei Men
- Department of Biological Engineering, College of Life Science, Dalian Minzu University, Dalian 116600, China
| | - Yunzhi Li
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230031, China
| | - Xiuli Wang
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Ruijun Li
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Tao Zhang
- Dalian Tianzheng Industrial Corporation Limited, Dalian 116011, China
| | - Xuesong Meng
- Dalian Tianzheng Industrial Corporation Limited, Dalian 116011, China
| | - Shengcong Liu
- Dalian Tianzheng Industrial Corporation Limited, Dalian 116011, China
| | - Xiaojie Gong
- Department of Biological Engineering, College of Life Science, Dalian Minzu University, Dalian 116600, China.
| | - Meng Gou
- Lamprey Research Center, Liaoning Normal University, Dalian 116081, China.
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Chieng CCY, Daud HM, Yusoff FM, Thompson KD, Abdullah M. Mucosal responses of brown-marbled grouper Epinephelus fuscoguttatus (Forsskål, 1775) following intraperitoneal infection with Vibrio harveyi. JOURNAL OF FISH DISEASES 2020; 43:1249-1258. [PMID: 32830331 DOI: 10.1111/jfd.13222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/29/2020] [Accepted: 06/30/2020] [Indexed: 06/11/2023]
Abstract
Groupers are popular aquaculture species in South-East Asia, but their cultivation is affected by infectious disease outbreaks. Mucosa-associated lymphoid tissues provide a first-line defence against pathogens; however, few studies are available relating to cellular or proteomic responses of mucosal immunity in grouper. Skin, gill and intestine were sampled from brown-marbled grouper Epinephelus fuscoguttatus (Forsskål, 1775) at 4 and 96 hr post-infection (hpi) and 7 days post-infection (dpi) following intraperitoneal infection with Vibrio harveyi, and stained with haematoxylin/eosin and Alcian Blue/periodic acid-Schiff. Skin mucus was analysed by 2D-gel electrophoresis, and proteins modulated by the bacterial infection identified. In the infected fish, significant increases in sacciform cells in skin and increased levels of nucleoside diphosphate kinase in mucus were detected at 4 hpi. At 96 hpi, goblet cells containing acidic mucins significantly increased in the intestine, while those containing mixed mucins increased in skin and gills of infected fish. Proteasome subunit alpha type-I and extracellular Cu/Zn superoxide dismutase levels also increased in mucus. Rodlet and mast cells did not appear to respond to the infection. Mucosal tissues of grouper appeared actively involved in response to Vibrio infection. This information may help future research on improving grouper health, production and vaccine development.
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Affiliation(s)
- Catherine Cheng Yun Chieng
- Laboratory of Marine Biotechnology, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
| | - Hassan Mohd Daud
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Malaysia
| | - Fatimah Md Yusoff
- Laboratory of Marine Biotechnology, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
| | | | - Maha Abdullah
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
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Matsui S, Yoshikawa S, Suzuki S, Somamoto T, Yamamoto A, Nakamura O, Tsutsui S. Expression profile of kalliklectin, a soluble-type mannose receptor, during embryogenesis and early larval development in fugu (Takifugu rubripes). Mol Immunol 2020; 126:129-135. [PMID: 32823237 DOI: 10.1016/j.molimm.2020.07.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/28/2020] [Accepted: 07/29/2020] [Indexed: 01/19/2023]
Abstract
Kalliklectin is a unique fish-specific lectin, whose sequence is similar to the heavy chain of mammalian plasma kallikrein and coagulation factor XI. In this study, we aimed to evaluate dynamic expression profiles of the lectin gene, during early developmental stages, in fugu, Takifugu rubripes. Reverse transcription-polymerase chain reaction (RT-PCR) showed that the kalliklectin gene was not expressed until 14 h post-fertilization (hpf), while the mRNA was detected after 30 hpf. In real-time quantitative PCR (qPCR), the gene was first expressed at 10.5 hpf; then, the expression level increased with a peak at 30 hpf and then gradually decreased. On the other hand, western blotting with specific antibody detected the lectin protein at all tested stages, including the unfertilized egg, which suggests that the lectin detected in the early stages was a maternal factor. Immunohistochemistry demonstrated that kalliklectin was localized at the basement membranes of the newly hatched larvae, while the lectin was widely detected in epidermal cells in larva at 5 dph. A 40-kDa lectin was partially purified from unfertilized eggs using mannose-affinity chromatography, and the lectin was determined as kalliklectin by liquid chromatography with quadrupole time-of-flight tandem mass spectrometry (LC/Q-TOF-MS) analysis, which indicated that the lectin is functional in the eggs. The egg lectin can bind to Gram-positive bacterial pathogens of fish, such as Lactococcus garvieae and Streptococcus iniae. We conclude that fugu kalliklectin might be an important immunocomponent, transferred from mother to offspring.
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Affiliation(s)
- Shintaro Matsui
- School of Marine Biosciences, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan
| | - Sota Yoshikawa
- Nagasaki Prefectural Institute of Fisheries, 1551-4, Tairamachi, Nagasaki, Nagasaki 851-2213, Japan
| | - Shigenori Suzuki
- National Research Institute of Aquaculture, Fisheries Research Agency, 183-2, Irozaki, Minamiizu, Kamo-gun, Shizuoka 415-0156, Japan
| | - Tomonori Somamoto
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Motooka 744, Fukuoka, Fukuoka 819-0395, Japan
| | - Atsushi Yamamoto
- Faculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, Kagoshima 890-0056, Japan
| | - Osamu Nakamura
- School of Marine Biosciences, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan
| | - Shigeyuki Tsutsui
- School of Marine Biosciences, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan.
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