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Hou Y, Liao T, Zhang F, Zhang T, Wang L, Lv W, Li Z. MicroRNA transcriptome analysis reveals the immune regulatory mechanism of Crassostrea hongkongesis against Vibrio harveyi infection. FISH & SHELLFISH IMMUNOLOGY 2024; 145:109354. [PMID: 38171431 DOI: 10.1016/j.fsi.2023.109354] [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: 10/22/2023] [Revised: 12/21/2023] [Accepted: 12/29/2023] [Indexed: 01/05/2024]
Abstract
MicroRNAs (miRNAs) are small non-coding RNA molecules that modulate target-genes expression and play crucial roles in post-transcriptional regulation and immune system regulation. The Hong Kong oyster (Crassostrea hongkongesis), as the main marine aquaculture shellfish in the South China Sea, not only has high economic and ecological value, but also is an ideal model for conducting research on pathogen host interaction. Vibrio harveyi, a Gram negative luminescent marine bacterium, is widely distributed in coastal water environments and can cause large-scale death of C. hongkongesis. However, little in formation is available on the immune regulatory mechanisms of C. hongkongesis infected with V. harveyi. Therefore, we performed microRNA transcriptome analysis for elucidating the immunoregulation mechanism of C. hongkongesis infected with V. harveyi. The results show that a total of 308468208 clean reads and 288371159 clean tags were obtained. 222 differentially expressed miRNAs were identified. A total of 388 target genes that were differentially expressed and negatively correlated with miRNA expression were predicted by 222 DEmiRs. GO enrichment analysis of 388 DETGs showed that they were mainly enriched in the immune-related term of membrane-bounded vesicle, endocytic vesicle lumen, antigen processing and presentation of exogenous peptide antigen via MHC class I, antigen processing and presentation of peptide antigen via MHC class I, and other immune-related term. KEGG enrichment analysis showed that DETGs were mainly enriched in the Complement and coagulation cascades, Herpes simplex virus 1 infection, Bacterial invasion of epithelial cells, Antigen processing and presentation and NOD-like receptor signaling pathway. The 16 key DEmiRs and their target genes form a regulatory network for seven immune-related pathways. These results suggest that V. harveyi infection induces a complex miRNA response with wide-ranging effects on immune gene expression in the C. hongkongesis. This study explored the immune response of C. hongkongesis to V. harveyi infection at the level of miRNAs, which provides new ideas for the healthy culture and selective breeding of C. hongkongesis.
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Affiliation(s)
- Yongkang Hou
- College of Fishery, Guangdong Ocean University, Zhanjiang, Guangdong, 524088, China
| | - Taoliang Liao
- College of Fishery, Guangdong Ocean University, Zhanjiang, Guangdong, 524088, China
| | - Fangqi Zhang
- College of Fishery, Guangdong Ocean University, Zhanjiang, Guangdong, 524088, China
| | - Teng Zhang
- College of Fishery, Guangdong Ocean University, Zhanjiang, Guangdong, 524088, China
| | - Lijun Wang
- College of Fishery, Guangdong Ocean University, Zhanjiang, Guangdong, 524088, China
| | - Wengang Lv
- College of Fishery, Guangdong Ocean University, Zhanjiang, Guangdong, 524088, China
| | - Zhimin Li
- College of Fishery, Guangdong Ocean University, Zhanjiang, Guangdong, 524088, China.
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Fu X, Guo M, Liu J, Li C. circRNA432 enhances the coelomocyte phagocytosis via regulating the miR-2008-ELMO1 axis in Vibrio splendidus-challenged Apostichopus japonicus. Commun Biol 2023; 6:115. [PMID: 36709365 PMCID: PMC9884281 DOI: 10.1038/s42003-023-04516-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 01/20/2023] [Indexed: 01/30/2023] Open
Abstract
Circular RNAs (circRNAs) are a kind of extensive and diverse covalently closed circular endogenous RNA, which exert crucial functions in immune regulation in mammals. However, the functions and mechanisms of circRNAs in invertebrates are largely unclarified. In our previous work, 261 differentially expressed circRNAs including circRNA432 (circ432) were identified from skin ulcer syndrome (SUS) diseased sea cucumber Apostichopus japonicus by RNA-seq. To better address the functional role of sea cucumber circRNAs, circ432 was first found to be significantly induced by Vibrio splendidus challenge and LPS exposure in this study. Knock-down circ432 could depress the V. splendidus-induced coelomocytes phagocytosis. Moreover, circ432 is validated to serve as the sponge of miR-2008, a differential expressed miRNA in SUS-diseased sea cucumbers, by Argonaute 2-RNA immunoprecipitation (AGO2-RIP) assay, luciferase reporter assay and RNA fluorescence in situ hybridization (FISH) in vitro. Engulfment and cell motility protein 1 (AjELMO1) is further demonstrated to be the target of miR-2008, and silencing AjELMO1 inhibits the V. splendidus-induced coelomocytes phagocytosis, and this phenomenon could be further suppressed by supplementing with miR-2008 mimics, suggesting that circ432 might regulate coelomocytes phagocytosis via miR-2008-AjELMO1 axis. We further confirm that the depressed coelomocytes' phagocytosis by circ432 silencing is consistent with the decreased abundance of AjELMO1, and could be recovered by miR-2008 inhibitors transfection. All our results provide the evidence that circ432 is involved in regulating pathogen-induced coelomocyte phagocytosis via sponge miR-2008 and promotes the abundance of AjELMO1. These findings will enrich the regulatory mechanism of phagocytosis in echinoderm and provide theoretical data for SUS disease prevention and control in sea cucumbers.
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Affiliation(s)
- Xianmu Fu
- grid.203507.30000 0000 8950 5267State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, 315211 Ningbo, P. R. China
| | - Ming Guo
- grid.203507.30000 0000 8950 5267State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, 315211 Ningbo, P. R. China
| | - Jiqing Liu
- grid.203507.30000 0000 8950 5267State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, 315211 Ningbo, P. R. China
| | - Chenghua Li
- grid.203507.30000 0000 8950 5267State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, 315211 Ningbo, P. R. China ,grid.484590.40000 0004 5998 3072Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, 266071 Qingdao, P. R. China
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Zhao T, Ren L, Li C, Liu L, Zou Y, Yan H, Zhan Y, Chang Y. MiR-7 Regulates Pathogen-Induced Immune Response via PAK1 in the Sea Cucumber Apostichopus japonicus. Front Immunol 2022; 13:927796. [PMID: 35911684 PMCID: PMC9329918 DOI: 10.3389/fimmu.2022.927796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 06/21/2022] [Indexed: 11/13/2022] Open
Abstract
MicroRNA-7 (miR-7) is a highly conserved short non-coding RNA involved in various bioprocesses via the regulation of multiple target genes. To enrich our knowledge of the functions of miR-7 in innate immune regulation in echinoderms, we first investigated the targeting relationship between miR-7 and PAK1 in the sea cucumber Apostichopus japonicus and then explored the functions of miR-7, the PAK1 gene, and the miR-7/PAK1 axis in the pathogen-induced immune response of A. japonicus. Our results showed that miR-7 can bind to the 3ʹUTR of PAK1 and negatively regulate the expression of PAK1 in A. japonicus. Overexpression and inhibition of miR-7 and inhibition of the expression of PAK1 can alter phagocytosis, cellular agglutination, and lysozyme contents in A. japonicus. Both miR-7 and the PAK1 gene are involved in immune defense against Vibrio splendidus infection; the miR-7/AjPAK1 axis showed immune regulatory function at 48 to 72 h post-infection (hpi) after V. splendidus infection in A. japonicus. In summary, the results of this study established that miR-7 regulates the pathogen-induced immune response by targeting PAK1 in A. japonicus.
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Affiliation(s)
- Tanjun Zhao
- College of Life Science, Liaoning Normal University, Dalian, China
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Liyuan Ren
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Chengda Li
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Li Liu
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Yang Zou
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Hanyu Yan
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
| | - Yaoyao Zhan
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
- *Correspondence: Yaoyao Zhan, ; Yaqing Chang,
| | - Yaqing Chang
- College of Life Science, Liaoning Normal University, Dalian, China
- Key Laboratory of Mariculture & Stock Enhancement in North China’s Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, China
- *Correspondence: Yaoyao Zhan, ; Yaqing Chang,
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Huang JH, Jiao YH, Li L, Li DW, Li HY, Yang WD. Small RNA analysis of Perna viridis after exposure to Prorocentrum lima, a DSP toxins-producing dinoflagellate. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 239:105950. [PMID: 34474269 DOI: 10.1016/j.aquatox.2021.105950] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 08/16/2021] [Accepted: 08/18/2021] [Indexed: 06/13/2023]
Abstract
Diarrheic shellfish poisoning toxins (DSP toxins) are a set of the most important phycotoxins produced by some dinoflagellates. Studies have shown that DSP toxins have various toxicities such as genotoxicity, cytotoxicity, and immunotoxicity to bivalve mollusks. However, these toxicities appear decreasing with exposure time and concentration of DSP toxins. The underlying mechanism involved remains unclear. In this study, small RNA sequencing was performed in the digestive gland of the mussel Perna viridis after exposure to DSP toxins-producing dinoflagellate Prorocentrum lima for different time periods. The potential roles of miRNAs in response and detoxification to DSP toxins in the mussel were analyzed. Small RNA sequencing of 12 samples from 72 individuals was conducted by BGISEQ-500. A total of 123 mature miRNAs were identified, including 90 conserved miRNAs and 33 potential novel miRNAs. After exposure to P. lima, multiple important miRNAs displayed some alterations. Further miRNA target prediction revealed some important genes involved in cytoskeleton, apoptosis, complement system and immune stress. qPCR demonstrated that miR-71_5, miR-750_1 and novel_mir4 were significantly up-regulated at 6 h after exposure to P. lima, while miR-100_2 was significantly down-regulated after 96 h of exposure. Accordingly, putative target genes of these differentially expressed miRNAs experienced some changes. After 6 h of DSP toxins exposure, NHLRC2 and C1q-like were significantly down-regulated. After 96 h of DSP toxins exposure, NHLRC2 was significantly up-regulated. It is reasonable to speculate that the mussel P. viridis might respond to DSP toxins through miR-750_1, novel_mir4 and miR-71_5 regulating the expression of relevant target genes involved in apoptosis, cytoskeleton, and immune response, etc. This study might provide new clues to uncover the toxic response of bivalve to DSP toxins and lay a foundation for revealing the roles of miRNAs in the environmental adaptation in shellfish.
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Affiliation(s)
- Jia-Hui Huang
- College of Life Science and Technology, Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Jinan University, Guangzhou 510632, China
| | - Yu-Hu Jiao
- College of Life Science and Technology, Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Jinan University, Guangzhou 510632, China
| | - Li Li
- College of Life Science and Technology, Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Jinan University, Guangzhou 510632, China
| | - Da-Wei Li
- College of Life Science and Technology, Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Jinan University, Guangzhou 510632, China
| | - Hong-Ye Li
- College of Life Science and Technology, Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Jinan University, Guangzhou 510632, China
| | - Wei-Dong Yang
- College of Life Science and Technology, Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Jinan University, Guangzhou 510632, China.
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Shang Y, Tian Y, Wang Y, Guo R. Novel lncRNA lncRNA001074 participates in the low salinity-induced response in the sea cucumber Apostichopus japonicus by targeting the let-7/NKAα axis. Cell Stress Chaperones 2021; 26:785-798. [PMID: 34291427 PMCID: PMC8492809 DOI: 10.1007/s12192-021-01207-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 03/22/2021] [Accepted: 04/13/2021] [Indexed: 01/18/2023] Open
Abstract
Salinity fluctuations have severe impacts on sea cucumbers and therefore important consequences in sea cucumber farming. The responses of sea cucumbers to salinity changes are reflected in the expression profiles of multiple genes and non-coding RNAs (ncRNAs). The microRNA (let-7) which is a developmental regulator, the ion transporter gene sodium potassium ATPase gene (NKAα), and the long ncRNA lncRNA001074 were previously shown to be involved in responses to salinity changes in various marine species. To better understand the relationship between ncRNAs and target genes, the let-7/NKAα/lncRNA001074 predicted interaction was investigated in this study using luciferase reporter assays and gene knockdowns in the sea cucumber Apostichopus japonicus. The results showed that NKAα was the target gene of let-7 and NKAα expression levels were inversely correlated with let-7 expression based on the luciferase reporter assays and western blots. The let-7 abundance was negatively regulated by lncRNA001074 and NKAα both in vitro and in vivo. Knockdown of lncRNA001074 led to let-7 overexpression. These results demonstrated that lncRNA001074 binds to the 3'-UTR binding site of let-7 in a regulatory manner. Furthermore, the expression profiles of let-7, NKAα, and lncRNA001074 were analyzed in sea cucumbers after the knockdown of each of these genes. The results found that lncRNA001074 competitively bound let-7 to suppress NKAα expression under low salinity conditions. The downregulation of let-7, in conjunction with the upregulation of lncRNA001074 and NKAα, may be essential for the response to low salinity change in sea cucumbers. Therefore, the dynamic balance of the lncRNA001074, NKAα, and let-7 network might be a potential response mechanism to salinity change in sea cucumbers.
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Affiliation(s)
- Yanpeng Shang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Heishijiao Street, No. 52, Dalian, 116023, China
| | - Yi Tian
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Heishijiao Street, No. 52, Dalian, 116023, China.
| | - Yan Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Heishijiao Street, No. 52, Dalian, 116023, China
| | - Ran Guo
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Heishijiao Street, No. 52, Dalian, 116023, China
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Zhou X, Zhang J, Li Y, Cui L, Wu K, Luo H. Astaxanthin inhibits microglia M1 activation against inflammatory injury triggered by lipopolysaccharide through down-regulating miR-31-5p. Life Sci 2021; 267:118943. [PMID: 33359248 DOI: 10.1016/j.lfs.2020.118943] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 12/06/2020] [Accepted: 12/15/2020] [Indexed: 01/31/2023]
Abstract
AIMS Astaxanthin is a natural carotenoid, can readily cross the blood-brain barrier and exerts a powerful neuroprotective effect. In this study, experiments were performed to explore the underlying molecular mechanisms of which Astaxanthin inhibiting the microglia M1 activation. MAIN METHODS BV2 cells and mice were pre-treated with Astaxanthin and treated by Lipopolysaccharide (LPS). The expressions of M1-related factors (pro-inflammatory cytokines and M1 markers) were measured by RT-qPCR and western blot. The target association between miR-31-5p and Numb was explored via luciferase activity assay. MiR-31-5p mimic was transfected into BV2 cells, then the cells were treated with Astaxanthin in combination with LPS. The expression of M1-related factors and Notch pathway-related molecules were measured via RT-qPCR, western blot and immunofluorescence assay. KEY FINDINGS Precondition of BV2 cells with Astaxanthin inhibited the expression of M1-related factors triggered by LPS. In addition, Astaxanthin decreased the number of Iba1-positive microglia and downregulated the levels of M1-related factors in hippocampus in LPS-treated mice. Further investigation revealed that Astaxanthin-mediated suppression of M1-related factors levels was reversed by miR-31-5p mimic in BV2 cells stimulated by LPS. Subsequently, we verified that miR-31-5p repressed Numb expression by binding to the 3'-UTR of Numb mRNA. Also, Astaxanthin suppressed the expression of Notch1, Hes1 and Hes5 and improved the expression of Numb in BV2 cells challenged by LPS, but this alteration can be reversed by miR-31-5p mimic. SIGNIFICANCE Our study demonstrated that down-regulating miR-31-5p by Astaxanthin could be a potential therapeutic approach to suppress neuroinflammation via regulating microglia M1 activation.
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Affiliation(s)
- Xin Zhou
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang 524023, China; The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang 524023, China
| | - Junyu Zhang
- Department of Pharmacology, Guangdong Medical University, Zhanjiang 524023, China
| | - Yuxin Li
- Department of Pharmacology, Guangdong Medical University, Zhanjiang 524023, China
| | - Liao Cui
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China; Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang 524023, China
| | - Kefeng Wu
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China; Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang 524023, China.
| | - Hui Luo
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang 524023, China.
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He JY, Li PH, Huang X, Sun YH, He XP, Huang W, Yu ZH, Sun HY. Molecular cloning, expression and functional analysis of NF-kB1 p105 from sea cucumber Holothuria leucospilota. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 114:103801. [PMID: 32739504 DOI: 10.1016/j.dci.2020.103801] [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: 05/28/2020] [Revised: 07/12/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
The nuclear factor-κB (NF-κB) family is evolutionary conserved and plays key roles in the regulation of numerous basic cellular processes. In this study, a sea cucumber Holothuria leucospilota NF-κB1 p105 named HLp105 was first obtained. The full-length cDNA of HLp105 is 6564 bp long, with a 219 bp 5' untranslated region (UTR), a 2979 bp 3' UTR, and a 3366 bp open reading frame (ORF) encoding for 1121 amino acids with a deduced molecular weight of 123.92 kDa and an estimated pI of 5.31. HLp105 protein contains the conserved domain RHD, IPT, ANK and DEATH. HLp105 mRNA can be detected in all tissues examined, with the highest level in the intestine, followed by the transverse vessel, rete mirabile, coelomocytes, respiratory tree, bolishiti, cuvierian tubules, body wall, oesophagus and muscle. Challenged by LPS or poly (I:C), the transcription level of HLp105 was apparently up-regulated in the tissues examined. Besides, Over-expression of HLp105 in HEK293T cells, the apoptosis was inhibited, and the cytokines IL-1β and TNF-α were activated. The results are important for better understanding the function of NF-κB1 p105 in sea cucumber and reveal its involvement in immunoreaction.
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Affiliation(s)
- Jia-Yang He
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, Guangdong Province, PR China
| | - Pin-Hong Li
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, Guangdong Province, PR China
| | - Xi Huang
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, Guangdong Province, PR China
| | - Yue-Hong Sun
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, Guangdong Province, PR China
| | - Xiao-Peng He
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, Guangdong Province, PR China
| | - Wei Huang
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, Guangdong Province, PR China
| | - Zong-He Yu
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, Guangdong Province, PR China.
| | - Hong-Yan Sun
- Joint Laboratory of Guangdong Province and Hong Kong Regions on Marine Bioresource Conservation and Exploitation, Guangdong Laboratory for Lingnan Modern Agriculture, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, Guangdong Province, PR China.
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Zhai Y, He P, Shi D, Jia R. iTRAQ-based proteomic analysis of the hepatopancreas from Litopenaeus vannamei after trans-vp28 gene Synechocystis sp. PCC6803 immunization. FISH & SHELLFISH IMMUNOLOGY 2020; 104:686-692. [PMID: 32562866 DOI: 10.1016/j.fsi.2020.05.078] [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: 02/24/2020] [Revised: 05/25/2020] [Accepted: 05/29/2020] [Indexed: 06/11/2023]
Abstract
Litopenaeus vannamei (Pacific white shrimp) is one of the most commercially important varieties of shrimp cultivated in the world. Shrimp farming is a high-risk, capital-intensive industry that is susceptible to periodic outbreaks of diseases caused by viral and bacterial pathogens. Thus, there is a need to develop economically viable methods of disease control. The hepatopancreas of crustaceans are known to have an important role in their innate immune response. In this study, we have explored the immune response of the hepatopancreas from L. vannamei fed with trans-vp28 gene Synechocystis sp. PCC6803 using iTRAQ-based proteomics. A total of 214 differentially expressed proteins (DEPs) were identified, of which 143 were up-regulated and 71 were down-regulated. These proteins have diverse roles in the cell cytoskeleton and cell phagocytosis, antioxidant defense process and the response of immune related proteins. Among these proteins, the immunity associated with the functional annotation of L. vannamei was further analysed. In addition, 4 DEPs (act1, N/A, H and C7M84_013542) were analysed using parallel reaction monitoring (PRM). This is the first report of proteomics in the hepatopancreas of L. vannamei immunized with trans-vp28 gene Synechocystis sp. PCC6803.
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Affiliation(s)
- Yufeng Zhai
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Peimin He
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Dingji Shi
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Rui Jia
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China.
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Sun L, Zhou F, Shao Y, Lv Z, Li C. The iron-sulfur protein subunit of succinate dehydrogenase is critical in driving mitochondrial reactive oxygen species generation in Apostichopus japonicus. FISH & SHELLFISH IMMUNOLOGY 2020; 102:350-360. [PMID: 32371258 DOI: 10.1016/j.fsi.2020.04.060] [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: 02/21/2020] [Revised: 04/24/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
Succinate dehydrogenase (SDH) is a mitochondrial enzyme with the unique ability to participate in both the tricarboxylic acid cycle and the electron transport chain to produce reactive oxygen species (ROS). The B subunit of SDH is required for succinate oxidation, which is critical for pro-inflammatory response. In this study, we cloned the iron-sulfur protein subunit of SDH from Apostichopus japonicus (denoted as AjSDHB) via RACE technology and explored its role in the immune system as a response to pathogen infection. The full-length cDNA of AjSDHB was 1442 bp with a complete open reading frame of 858 bp encoding 286 amino acids. Simple modular architecture research tool analysis revealed that AjSDHB contained two conserved domains, including a 2Fe-2S iron-sulfur cluster binding domain and a 4Fe-4S dicluster domain, without a signal peptide. Multiple sequence alignment demonstrated that AjSDHB shared a high degree of structural conservation and sequence identities with other counterparts from invertebrates and vertebrates. Phylogenetic analysis supported the finding that AjSDHB is a new member of the SDHB protein subfamily. Tissue distribution analysis revealed that AjSDHB was expressed in all examined tissues and particularly highly expressed in the muscles. AjSDHB transcripts were markedly induced in coelomocytes both by Vibrio splendidus challenge in vivo and lipopolysaccharide exposure in vitro. Function analysis showed that siRNA-mediated AjSDHB knockdown could substantially reduce the mitochondrial membrane potential (ΔΨm) and further decrease mitochondrial ROS production in A. japonicus coelomocytes. By contrast, AjSDHB overexpression considerably increased ΔΨm and mitochondrial ROS production of A. japonicus coelomocytes. These results supported the idea that AjSDHB is involved in the innate immunity of A. japonicus through its participation in mitochondrial ROS generation.
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Affiliation(s)
- Lianlian Sun
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, PR China
| | - Fangyuan Zhou
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, PR China
| | - Yina Shao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, PR China
| | - Zhimeng Lv
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, PR China
| | - Chenghua Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, PR China.
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Yu D, Wu H, Peng X, Ji C, Zhang X, Song J, Qu J. Profiling of microRNAs and mRNAs in marine mussel Mytilus galloprovincialis. Comp Biochem Physiol C Toxicol Pharmacol 2020; 230:108697. [PMID: 31891766 DOI: 10.1016/j.cbpc.2019.108697] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/17/2019] [Accepted: 12/21/2019] [Indexed: 12/20/2022]
Abstract
MicroRNAs (miRNAs) are a class of noncoding RNA molecules containing 18-24 nucleotides, and those with conserved structures are able to regulate the expression of eukaryotic genes by inhibition or enhancement of mRNA translation. However, miRNAs of the blue mussel, Mytilus galloprovincialis have not been reported. M. galloprovincialis is a primary species distributed along coastal zones worldwide. To reveal the repertoire of miRNAs in M. galloprovincialis, we constructed small RNA libraries prepared from three different mussels, which were then sequenced by Solexa deep sequencing technology. A total of 32,836,817, 33,359,113 and 33,093,562 clean reads from the tissues of the three M. galloprovincialis were obtained. Based on sequence similarities and hairpin structure predictions, 137 M. galloprovincialis miRNAs (mg-miRNA) were identified. Among the mg-miRNAs, 104 were conserved across species, whereas 33 might be novel and specific for M. galloprovincialis. Some of the mg-miRNAs, such as let-7 and the miR-100 family are playing key roles in many metabolic pathways and are worthy of further study. By performing a whole genome-scale characterization of mg-miRNAs and proposing their potential functions, these results provide a foundation for understanding the biological processes of the blue mussel, M. galloprovincialis.
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Affiliation(s)
- Deliang Yu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Huifeng Wu
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, YICCAS, Yantai 264003, PR China
| | - Xiao Peng
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China.
| | - Chenglong Ji
- Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, YICCAS, Yantai 264003, PR China
| | - Xiaoying Zhang
- AstraZeneca-Shenzhen University Joint Institute of Nephrology, Department of Physiology, Shenzhen University Health Science Center, Shenzhen University, 518060, PR China
| | - Jun Song
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China
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Tian Y, Shang Y, Guo R, Ding J, Li X, Chang Y. miR-10 involved in salinity-induced stress responses and targets TBC1D5 in the sea cucumber, Apostichopus japonicas. Comp Biochem Physiol B Biochem Mol Biol 2020; 242:110406. [PMID: 31904427 DOI: 10.1016/j.cbpb.2019.110406] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 12/16/2019] [Accepted: 12/30/2019] [Indexed: 12/31/2022]
Abstract
The sea cucumber is an economically important aquaculture species in China, where it encounter hypo-saline conditions caused by freshwater outflow from rivers and rainfall. MicroRNAs (miRNA) are small noncoding RNAs of about 22 nucleotides, which are crucial regulators of gene expression at the post-transcriptional level and are involved in a variety of physiological and pathophysiological processes. miR-10 is differentially expressed in salinity acclimation, and has a seed-region match with TBC1D5. The expression profiles of miR-10 and TBC1D5 indicate that miR-10 negatively regulates the expression of TBC1D5 in coelomocytes and sea cucumbers with a miR-10 agomir or antagomir. During salinity acclimation, up-regulation of miR-10 was induced after transfection in coelomocytes with a miR-10 inhibitor, while down-regulation of TBC1D5 was induced. The miR-10 expression maximum in coelomocytes appeared at 48 h post-transfection with a miR-10 inhibitor, was later than that of in sea cucumbers, which appeared 24 h after miR-10 antagomir injection. There was no longer a negative relationship between miR-10 and TBC1D5 expression in coelomocytes and sea cucumbers with miR-10 mimics or agomir during salinity acclimation. The miR-10 antagomir or agomir only affected sodium and NKA enzyme activities, and has little effect on other chloride and potassium ions. Our results demonstrate miR-10 directly regulates TBC1D5 by targeting its 3'-UTR, and that miR-10 suppression substantially increases TBC1D5 mRNA levels in vivo and in vitro. Furthermore, miR-10 and TBC1D5 fluctuating expression patterns after treatment with a miR-10 inhibitor or mimics during salinity acclimation may indicate that they are required for adaptation to salinity stress caused by environmental change. Especially, the miR-10 up-regulation in coelomocytes with miR-10 inhibitor during salinity acclimation indicated that they are required for adaptation to salinity stress caused by environmental change. We propose that miR-10 participates in a regulatory circuit that allows for rapid gene program transitions in response to osmotic stress.
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Affiliation(s)
- Yi Tian
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China.
| | - Yanpeng Shang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China
| | - Ran Guo
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China
| | - Jun Ding
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China
| | - Xiaoyu Li
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China
| | - Yaqing Chang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China.
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12
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Zhan Y, Liu L, Zhao T, Sun J, Cui D, Li Y, Chang Y. MicroRNAs involved in innate immunity regulation in the sea cucumber: A review. FISH & SHELLFISH IMMUNOLOGY 2019; 95:297-304. [PMID: 31669896 DOI: 10.1016/j.fsi.2019.10.049] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 08/23/2019] [Accepted: 10/23/2019] [Indexed: 06/10/2023]
Abstract
The sea cucumber is one of the most economically significant echinoderms. The immunity against exogenous stimulation of sea cucumber is of great academic and economic importance. MicroRNAs (miRNAs) are a class of short endogenous non-coding RNAs (ncRNAs) that are considered as vital regulators of both innate and adaptive immune responses in most eukaryotes. In sea cucumbers, some miRNAs (such as miR-133, miR-137, and miR-2008, among others) that participate in the regulation of innate immunity have been recently identified and characterized. This review focuses on those known miRNAs and their corresponding target genes that participate in the regulation of the complement system, Toll-like receptor (TLR) pathway, reactive oxygen species (ROS) production and apoptosis pathways in sea cucumbers. Moreover, we cover immune-related miRNA investigations in sea cucumbers that provide insights into developing more miRNA-based biomarkers and therapeutic strategies for sea cucumber diseases.
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Affiliation(s)
- Yaoyao Zhan
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, PR China
| | - Li Liu
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, PR China
| | - Tanjun Zhao
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, PR China
| | - Jingxian Sun
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, PR China
| | - Dongyao Cui
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, PR China
| | - Yingying Li
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, PR China
| | - Yaqing Chang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, Dalian, Liaoning, 116023, PR China.
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Zhao X, Duan X, Fu J, Shao Y, Zhang W, Guo M, Li C. Genome-Wide Identification of Circular RNAs Revealed the Dominant Intergenic Region Circularization Model in Apostichopus japonicus. Front Genet 2019; 10:603. [PMID: 31312211 PMCID: PMC6614181 DOI: 10.3389/fgene.2019.00603] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 06/06/2019] [Indexed: 12/11/2022] Open
Abstract
Circular RNAs (circRNAs) were recently recognized to act as competing endogenous RNAs and play roles in gene expression regulation. Previous studies in humans and silkworms have shown that circRNAs take part in immune regulation. Here, we conducted coelomocyte circRNA sequencing to explore its immune functions in healthy and skin ulceration syndrome (SUS)-diseased sea cucumbers. A total of 3,592 circRNAs were identified in libraries with diversified circularization patterns compared with animal models. The common intron-pairing-driven circularization models are not popular in sea cucumber genome, which was replaced with intergenic region circularization. The accuracy of these identified circRNAs was further validated by Sanger sequencing and RNase R-treated assays. Expression profile analysis indicated that 117 circRNAs were upregulated and 144 circRNAs were downregulated in SUS-diseased condition, of which 71.6% were intergenic-type circRNAs. The interaction network of differentially expressed circRNAs and microRNAs (miRNAs) was constructed and showed that miR-2008 and miR-31, detected with significantly differential expression in SUS-affected samples in a previous study, were predicted to be regulated by 10 and 11 differentially expressed circRNAs with more than 10 binding sites, respectively. Moreover, seven circRNAs were further validated by quantitative real-time PCR, whose variation trends were consistent with circRNA sequencing. All our results supported that intergenic-type circRNAs might have a dominant function in Apostichopus japonicas immune response by acting as miRNA regulators.
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Affiliation(s)
- Xuelin Zhao
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, China
| | - Xuemei Duan
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, China
| | - Jianping Fu
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, China
| | - Yina Shao
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, China
| | - Weiwei Zhang
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, China
| | - Ming Guo
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, China
| | - Chenghua Li
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, China
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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14
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Chen M, Wang S, Li X, Storey KB, Zhang X. The potential contribution of miRNA-200-3p to the fatty acid metabolism by regulating AjEHHADH during aestivation in sea cucumber. PeerJ 2018; 6:e5703. [PMID: 30310746 PMCID: PMC6173160 DOI: 10.7717/peerj.5703] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 09/07/2018] [Indexed: 12/14/2022] Open
Abstract
The sea cucumber (Apostichopus japonicus) has become a good model organism for studying environmentally-induced aestivation by a marine invertebrate more recently. In the present study, we hypothesized that miRNA-200-3p may contribute to establish rapid biological control to regulate fatty acid metabolism during a estivation. The peroxisomal bi-functional enzyme (EHHADH) is a crucial participant of the classical peroxisomal fatty acid β-oxidation pathway, the relative mRNA transcripts and protein expressions of EHHADH were analyzed in intestine from sea cucumbers experienced long-term aestivation. Both mRNA transcripts and protein expressions of EHHADH in intestine decreased significantly during deep-aestivation as compared with non-aestivation controls. Analysis of the 3′ UTR of AjEHHADH showed the presence of a conserved binding site for miR-200-3p. Level of miR-200-3p showed an inverse correlation with EHHADH mRNA transcripts and protein levels in intestine, implicating miR-200-3p may directly targeted AjEHHADH by inducing the degradation of AjEHHADH mRNA in the aestivating sea cucumber, further dual-luciferase reporter assay validated the predicted role of miRNA-200-3p in regulating AjEHHADH. In order to further understand their regulatory mechanism, we conducted the functional experiment in vivo. The overexpression of miR-200-3p in sea cucumber significantly decreased mRNA and protein expression levels of AjEHHADH. Taken together, these findings suggested the potential contribution of miRNA-200-3p to the fatty acid metabolism by regulating AjEHHADH during aestivation in sea cucumber.
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Affiliation(s)
- Muyan Chen
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao, China
| | - Shanshan Wang
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao, China
| | - Xingke Li
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao, China
| | | | - Xiumei Zhang
- Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Ocean University of China, Qingdao, China
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15
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Sun H, Zhou Z, Dong Y, Yang A, Pan Y, Jiang J, Chen Z, Guan X, Wang B, Gao S, Jiang B. In-depth profiling of miRNA regulation in the body wall of sea cucumber Apostichopus japonicus during skin ulceration syndrome progression. FISH & SHELLFISH IMMUNOLOGY 2018; 79:202-208. [PMID: 29763733 DOI: 10.1016/j.fsi.2018.05.020] [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] [Received: 11/19/2017] [Revised: 05/09/2018] [Accepted: 05/11/2018] [Indexed: 06/08/2023]
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that mediate mRNA degradation or translation repression. Previous study showed that the expression of miRNAs was significantly changed in the body wall of sea cucumber Apostichopus japonicus after skin ulceration syndrome (SUS) infection, which is a dynamic process. However, the critical miRNAs from body wall that involved in different infection stages of SUS remain unknown. In this study, four cDNA libraries were constructed with the body wall from healthy and three SUS-infected stages of A. japonicus. A total of 248 conserved miRNAs and five novel miRNAs were identified through Illumina HiSeq 2000 platform. Compared to the control, 238 miRNAs showed significant differential expression at three stages of SUS progression. Totally, 3149 miRNA-mRNA pairs were identified by target prediction and 314 miRNA-mRNA pairs showed negative correlation. It is noteworthy that 15 miRNAs and four mRNAs were located at the crucial positions of the network built with the anti-correlated miRNA-mRNA pairs. GO and KEGG enrichment analysis indicated that the predicted targets were involved in many immune-related processes. Deep analysis of miR-31c-5p, miR-29b-3p, NF-kB, mucin 2 and titin showed that they may play important roles in the pathogens attachment and recognition, signaling transduction and lesions repair of A. japonicus after SUS infection. These results would be useful for further investigating the potential roles of critical miRNAs and mRNAs in A. japonicus immune regulation.
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Affiliation(s)
- Hongjuan Sun
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Zunchun Zhou
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China.
| | - Ying Dong
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Aifu Yang
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Yongjia Pan
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Jingwei Jiang
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Zhong Chen
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Xiaoyan Guan
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Bai Wang
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Shan Gao
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Bei Jiang
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
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16
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Mi R, Sun Y, Li J, Ma S, Wen Z, Li X, Meng N, Li Y, Du X, Li S. Immune-related proteins detected through iTRAQ-based proteomics analysis of intestines from Apostichopus japonicus in response to tussah immunoreactive substances. FISH & SHELLFISH IMMUNOLOGY 2018; 74:436-443. [PMID: 29317309 DOI: 10.1016/j.fsi.2018.01.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 11/10/2017] [Accepted: 01/05/2018] [Indexed: 06/07/2023]
Abstract
Apostichopus japonicus is a species of sea cucumber that is extensively bred as a marine delicacy because of its high nutritive and medicinal value. Immunostimulants are usually used to enhance the immunity of sea cucumber against diseases, but the physiological function of immunostimulants is poorly understood. In this study, we fed A. japonicus individuals with a diet supplemented with different concentrations of tussah immunoreactive substances (TIS), and then subjected their intestines to iTRAQ-based proteomic analysis. A total of 51 differentially expressed proteins were detected in response to TIS, 13 proteins were upregulated, while 38 proteins were reduced. These proteins are involved in phagocytosis, tissue protection, cell apoptosis and energy metabolism. Among these 51 proteins, 7 proteins (GLO2, ACOX, CTTN, MARK, FADD, CSTA and CASP6) related to immunity with functional annotation in sea cucumber were further analyzed. In addition, the upregulated expression of 4 immune-related proteins (GLO2, ACOX, CTTN and MARK) was validated by qRT-PCR. The findings of this study gave further insight into the mechanism by which TIS might enhance the immunity of A. japonicus.
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Affiliation(s)
- Rui Mi
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
| | - Yongxin Sun
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China.
| | - Jianguang Li
- Shandong Sci-Health Biotechnology Co., Ltd, Yantai 265500, PR China
| | - Shuhui Ma
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
| | - Zhixin Wen
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
| | - Xuejun Li
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
| | - Nan Meng
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
| | - Yajie Li
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
| | - Xingfan Du
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
| | - Shuying Li
- Dalian Biotechnology Research Institute, Liaoning Academy of Agricultural Sciences, Dalian 116024, PR China
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Zhou X, Chang Y, Zhan Y, Wang X, Lin K. Integrative mRNA-miRNA interaction analysis associate with immune response of sea cucumber Apostichopus japonicus based on transcriptome database. FISH & SHELLFISH IMMUNOLOGY 2018; 72:69-76. [PMID: 29054825 DOI: 10.1016/j.fsi.2017.10.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 10/13/2017] [Accepted: 10/16/2017] [Indexed: 06/07/2023]
Abstract
MicroRNAs (miRNAs) constitute a family of endogenous non-coding small RNAs that have been demonstrated to be the key effectors in mediating host-pathogen interactions. Additionally, high-throughput sequencing provides unexampled opportunities to identify the pathogenic mechanism underlying miRNAs. In the present study, the target genes of immune-related miRNAs (miR-31, miR-2008, miR-92a, miR-210 and miR-7) and specific miRNAs (miR-2004) in Echinodermata were predicted in silico and validated. Gene ontology (GO) analysis of the target genes of these six miRNAs were conducted to further understand the regulatory function in the host immunity of Apostichopus japonicus (A. japonicus). Among the putative target genes of the six miRNAs, various immune-related targets were annotated, such as Nephl, SEC14Ll, p105, GL2, LYS, FNIAL, mTOR, LITAF, SLC44, TLR3, Apaf-1, and CNTN4. This work will provide valuable genetic resources to understand the interaction of multiple mRNA-miRNAs and the regulation mechanism in the anti-bacterial process in the sea cucumber.
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Affiliation(s)
- Xiaoxu Zhou
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian, 116023, China
| | - Yaqing Chang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian, 116023, China.
| | - Yaoyao Zhan
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian, 116023, China
| | - Xiuli Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian, 116023, China
| | - Kai Lin
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian, 116023, China
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Chen J, Yu Y, Li S, Liu Y, Zhou S, Cao S, Yin J, Li G. MicroRNA-30a ameliorates hepatic fibrosis by inhibiting Beclin1-mediated autophagy. J Cell Mol Med 2017; 21:3679-3692. [PMID: 28766848 PMCID: PMC5706581 DOI: 10.1111/jcmm.13278] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 05/18/2017] [Indexed: 12/21/2022] Open
Abstract
We explored the role of microRNA-30a (miR-30a) and the mechanism involved in hepatic fibrosis. MiR-30a overexpression was achieved by miR-30a mimics transfection in hepatic stellate cells (HSCs) (HSC-T6, LX-2), and miR-30a agomir (ago-miR-30a) treatment in mice. MiR-30a levels were measured using TaqMan miRNA assay system, and the localization of miR-30a was detected by fluorescence in situ hybridization (FISH). The interaction of miR-30a and Beclin1 was confirmed by dual-luciferase reporter assay. Autophagic flux was analysed using tandem mRFP-GFP-LC3 fluorescence microscopy, electron microscopy and Western blot of LC3-II/I ratio. MiR-30a was notably down-regulated in activated HSCs and LX-2-exosomes induced by TGF-β1; overexpression of miR-30a down-regulated extracellular matrix (ECM), such as α-SMA, TIMP-1, and Collagen I expression, and suppressed cell viability in HSCs. MiR-30a was significantly down-regulated in hepatic fibrosis mice and overexpression of miR-30a prevented BDL-induced fibrogenesis, concomitant with the down-regulation of ECM. MiR-30a inhibited HSCs autophagy and increased lipid accumulation in HSCs and in mice fibrotic hepatic tissues. MiR-30a inhibited its downstream effector of Beclin1 by direct targeting its 3'-UTR region. Moreover, Knock-down of Beclin1 by small interfering RNA (siRNA) inhibited HSC autophagy and activation in LX-2 cells. In conclusion, miR-30a is down-regulated in hepatic fibrosis models and its overexpression prevents liver fibrogenesis by directly suppressing Beclin1-mediated autophagy; therefore, miR-30a may be a new potential therapeutic target for controlling hepatic fibrosis.
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Affiliation(s)
- Jianliang Chen
- Department of Liver SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsu ProvinceChina
- Key Laboratory of Living Donor Liver Transplantation of Ministry of Public HealthNanjingJiangsu ProvinceChina
- Department of General SurgeryPeople's HospitalJingjiangJiangsu ProvinceChina
| | - Yue Yu
- Department of Liver SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsu ProvinceChina
- Key Laboratory of Living Donor Liver Transplantation of Ministry of Public HealthNanjingJiangsu ProvinceChina
| | - Shu Li
- Department of Liver SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsu ProvinceChina
- Key Laboratory of Living Donor Liver Transplantation of Ministry of Public HealthNanjingJiangsu ProvinceChina
| | - Yuting Liu
- Department of Pediatric SurgeryHuai'an First Hospital Affiliated to Nanjing Medical UniversityHuai'anJiangsu ProvinceChina
| | - Shu Zhou
- Department of Liver SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsu ProvinceChina
- Key Laboratory of Living Donor Liver Transplantation of Ministry of Public HealthNanjingJiangsu ProvinceChina
| | - Shouji Cao
- Department of Liver SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsu ProvinceChina
- Key Laboratory of Living Donor Liver Transplantation of Ministry of Public HealthNanjingJiangsu ProvinceChina
| | - Jie Yin
- Department of Respiratory MedicineJinling HospitalNanjingJiangsu ProvinceChina
| | - Guoqiang Li
- Department of Liver SurgeryThe First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsu ProvinceChina
- Key Laboratory of Living Donor Liver Transplantation of Ministry of Public HealthNanjingJiangsu ProvinceChina
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19
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Lv M, Chen H, Shao Y, Li C, Zhang W, Zhao X, Jin C, Xiong J. miR-92a regulates coelomocytes apoptosis in sea cucumber Apostichopus japonicus via targeting Aj14-3-3ζ in vivo. FISH & SHELLFISH IMMUNOLOGY 2017; 69:211-217. [PMID: 28860073 DOI: 10.1016/j.fsi.2017.08.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/21/2017] [Accepted: 08/27/2017] [Indexed: 06/07/2023]
Abstract
miR-92a, a well-documented oncogene, was previously found to be differentially expressed in diseased sea cucumber Apostichopus japonicus by high-throughput sequencing. In this study, we identified Aj14-3-3ζ as a novel target of miR-92a in this species and investigated their regulatory roles in vivo. The negative expression profiles between miR-92a and Aj14-3-3ζ protein were detected in both LPS-exposed primary coelomocytes and Vibrio splendidus-challenged sea cucumbers. Over-expression of miR-92a by injection of miR-92a agomir significantly depressed the mRNA and protein expression of Aj14-3-3ζ and promoted coelomocytes apoptosis with 5.04-fold increase in vivo, which was consistent with those from siRNA-mediated Aj14-3-3ζ knockdown assay. In contrast, miR-92a antagomir significantly elevated the mRNA and protein expression of Aj14-3-3ζ and decreased coelomocytes apoptosis. Taken together, our result confirmed that miR-92a is involved in apoptotic signaling pathway regulation perhaps via targeting Aj14-3-3ζ in sea cucumbers, which will enhance our understanding of miR-92a regulatory roles in sea cucumber pathogenesis.
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Affiliation(s)
- Miao Lv
- School of Marine Sciences, Ningbo University, PR China
| | - Huahui Chen
- School of Marine Sciences, Ningbo University, PR China
| | - Yina Shao
- School of Marine Sciences, Ningbo University, PR China
| | - Chenghua Li
- School of Marine Sciences, Ningbo University, PR China.
| | - Weiwei Zhang
- School of Marine Sciences, Ningbo University, PR China
| | - Xuelin Zhao
- School of Marine Sciences, Ningbo University, PR China
| | - Chunhua Jin
- School of Marine Sciences, Ningbo University, PR China
| | - Jinbo Xiong
- School of Marine Sciences, Ningbo University, PR China
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Zhang S, Zhang W, Liu N, Song T, Liu H, Zhao X, Xu W, Li C. Indole reduces the expression of virulence related genes in Vibrio splendidus pathogenic to sea cucumber Apostichopus japonicus. Microb Pathog 2017; 111:168-173. [PMID: 28867630 DOI: 10.1016/j.micpath.2017.08.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/06/2017] [Accepted: 08/30/2017] [Indexed: 12/24/2022]
Abstract
Indole is a metabolite of tryptophan that can be synthesized by various bacteria. In the present study, production of indole by Vibrio splendidus Vs was determined using Kovac's reagent, and m/z was further determined by HPLC-MS. Extracellular indole reached a maximum concentration of 160 μM, when OD600 of V. splendidus Vs was approximately 0.9. In addition, glucose could reduce indole level, and 1% (m/v) glucose could reduce the mRNA level of tnaA, the gene encoding tryptophanase, down to 0.2%. To investigate the effects of indole on the mRNA levels of virulence related genes of V. splendidus Vs, mRNA levels of vsm, vsh and ABC respectively related to protease activity, haemolytic activity and ABC transporter ATP-binding protein were determined. Exogenous indole supplemented at a concentration of 125 μΜ could respectively down regulate the mRNA level of vsm, vsh and ABC to 16%, 13% and 11%. Meanwhile, indole could alter the expressions of immune related gene in Apostichopus japonicus. When coelomocytes were co-cultured with exogenous indole at a concentration of 125 μΜ, the mRNA level of Ajp105 and AjLBP/BPI1, were up regulated by 1.6-fold and 2.1-fold, respectively. Combined all the results in our study suggested that indole could alter the expressions of the virulence related genes in pathogenic V. splendidus Vs as well as the immune related genes in A. japonicus.
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Affiliation(s)
- Shanshan Zhang
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Weiwei Zhang
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Ningning Liu
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Tongxiang Song
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Huijie Liu
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Xuelin Zhao
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China
| | - Wei Xu
- Louisiana State University, Agricultural Center, USA
| | - Chenghua Li
- School of Marine Sciences, Ningbo University, Ningbo 315211, PR China; Louisiana State University, Agricultural Center, USA.
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Shao Y, Li C, Xu W, Zhang P, Zhang W, Zhao X. miR-31 Links Lipid Metabolism and Cell Apoptosis in Bacteria-Challenged Apostichopus japonicus via Targeting CTRP9. Front Immunol 2017; 8:263. [PMID: 28348559 PMCID: PMC5346533 DOI: 10.3389/fimmu.2017.00263] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 02/23/2017] [Indexed: 12/23/2022] Open
Abstract
The biological functions of microRNAs (miRNAs) have been studied in a number of eukaryotic species. Recent studies on vertebrate animals have demonstrated critical roles of miRNA in immune and metabolic activities. However, studies on the functions of miRNA in invertebrates are very limited. Here, we demonstrated that miR-31 from Apostichopus japonicus disrupts the balance of lipid metabolism, thus resulting in cell apoptosis by targeting complement C1q tumor necrosis factor-related protein 9 (AjCTRP9), a novel adipokine with pleiotropic functions in immunity and metabolism. Lipidomic analysis suggested that the intercellular lipid metabolites were markedly altered, and three ceramide (Cer) species synchronously increased in the AjCTRP9-silenced coelomocytes. Moreover, exogenous Cer exposure significantly induced apoptosis in the coelomocytes in vivo, in agreement with findings from miR-31 mimic- or AjCTRP9 small-interfering RNA-transfected coelomocytes. Furthermore, we found that the imbalance in sphingolipid metabolism triggered by the overproduction of Cers ultimately resulted in the activation of the apoptosis initiator caspase-8 and executioner caspase-3. Our findings provide the first direct evidence that miR-31 negatively modulates the expression of AjCTRP9 and disturbance of Cer channels, thus leading to caspase-3- and caspase-8-dependent apoptosis, during the interactions between pathogens and host.
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Affiliation(s)
- Yina Shao
- School of Marine Sciences, Ningbo University , Ningbo , China
| | - Chenghua Li
- School of Marine Sciences, Ningbo University , Ningbo , China
| | - Wei Xu
- Agricultural Center, Louisiana State University , Baton Rouge, LA , USA
| | - Pengjuan Zhang
- School of Marine Sciences, Ningbo University , Ningbo , China
| | - Weiwei Zhang
- School of Marine Sciences, Ningbo University , Ningbo , China
| | - Xuelin Zhao
- School of Marine Sciences, Ningbo University , Ningbo , China
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Transcriptome analysis of tube foot and large scale marker discovery in sea cucumber, Apostichopus japonicus. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2016; 20:41-49. [DOI: 10.1016/j.cbd.2016.07.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 07/14/2016] [Accepted: 07/22/2016] [Indexed: 12/13/2022]
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Li C, Zhao M, Zhang C, Zhang W, Zhao X, Duan X, Xu W. miR210 modulates respiratory burst in Apostichopus japonicus coelomocytes via targeting Toll-like receptor. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2016; 65:377-381. [PMID: 27545641 DOI: 10.1016/j.dci.2016.08.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 08/16/2016] [Accepted: 08/17/2016] [Indexed: 06/06/2023]
Abstract
Immune responses of species in Echinodermata remains mysterious due to the lack of efforts made in the study of host defense mechanism in these species. More researches start focusing on this ancient immune system with the recognition the economic values of several species in this phylum, especially sea cucumbers. Here, we reported a study in the innate immunity of a sea cucumber species (Apostichopus japonicus) in response to infection of Vibrio splendidus. A novel differential expressed miRNA (miR-210) from the diseased sea cucumber coelomocytes was identified in our study. This miRNA molecule modulates Toll-like receptor gene (AjToll) expression via binding 3'UTR region from 906 nt to 930 nt. Upon the challenge of V. splendidus, coelomocytes in A. japonicas demonstrated a upregulation of AjToll but a downregulation of miR-210. Transfection of miR-210 agomirs in coelomocytes significantly depressed the expression of AjToll in cells. As a result of AjToll expression inhibition by miR-210, the AjToll downstream molecules involved in reactive oxygen species (ROS) were also altered in vivo. This ROS pathway alternation was consistent with that caused by knockdown of AjToll through small inference RNA (siRNA). Taken together, the results of this study demonstrated a novel immune regulatory pathway via miRN-210 in A. japonica, which provides basic knowledge in exploring innate immunity of Echinodermata, and also can be reference in disease control in sea cucumber culture industry.
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Affiliation(s)
- Chenghua Li
- School of Marine Sciences, Ningbo University, PR China; Louisiana State University, Agricultural Center, United States.
| | - Mengru Zhao
- School of Marine Sciences, Ningbo University, PR China
| | - Chi Zhang
- School of Marine Sciences, Ningbo University, PR China
| | - Weiwei Zhang
- School of Marine Sciences, Ningbo University, PR China
| | - Xuelin Zhao
- School of Marine Sciences, Ningbo University, PR China
| | - Xuemei Duan
- School of Marine Sciences, Ningbo University, PR China
| | - Wei Xu
- Louisiana State University, Agricultural Center, United States.
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Cheng S, Li C, Wang Y, Yang L, Chang Y. Characterization and expression analysis of a thioredoxin-like protein gene in the sea cucumber Apostichopus japonicus. FISH & SHELLFISH IMMUNOLOGY 2016; 58:165-173. [PMID: 27640155 DOI: 10.1016/j.fsi.2016.08.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 08/27/2016] [Accepted: 08/29/2016] [Indexed: 06/06/2023]
Abstract
As the most important disulfide bond reducates of intracellular oxidordeuctase, thioredoxin (TRX) plays a crucial role in maintaining reducing state of intracellular proteins to normally perform their function. In this study, a cDNA of TRX-like protein gene from Apostichopus japonicus (denoted as AjTRX) was cloned and characterized. The full-length cDNA of AjTRXwas of 1870 bp, consisting of a 5'-UTR of 101 bp, a long 3'-UTR of 887 bp and a 882 bp open reading frame (ORF) encoding a 293 amino acids. The predicted molecular mass and the theoretical PI of the deduced amino acids of AjTRX were 32.3 kDa and 5.52, respectively. Phylogenetic trees showed that AjTRX had a closer evolution relationship with TRX from Strongylocentrotus purpuratus. AjTRX was found to be ubiquitously expressed in all examined tissues including longitudinal muscle, coelomocytes, tube feet, intestine, respiratory tree and body wall indicating a general role in physiological processes. Temporal expression pattern of AjTRX in coelomocytes showed that AjTRX reached two peak expression levels at 8 h and 48 h after Vibrio splendidus challenge with a 8.6 and 9.3-fold increase compared to their control groups, respectively. The recombinant AjTRX protein (rAjTRX) displayed obvious antioxidant activity in a dose-dependent manner, and the higher reducing activity was detected in 20 μM experimental group. All these results strongly suggested that AjTRX could play an important role as an antioxidant in a physiological context, and might be involved in the process of bacterial challenge.
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Affiliation(s)
- Shixiong Cheng
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, PR China
| | - Chenghua Li
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, PR China; School of Marine Sciences, Ningbo University, Ningbo, Zhejiang Province 315211, PR China
| | - Yi Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, PR China
| | - Limeng Yang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, PR China
| | - Yaqing Chang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, PR China.
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Cui J, Chu Q, Xu T. miR-122 involved in the regulation of toll-like receptor signaling pathway after Vibrio anguillarum infection by targeting TLR14 in miiuy croaker. FISH & SHELLFISH IMMUNOLOGY 2016; 58:67-72. [PMID: 27637732 DOI: 10.1016/j.fsi.2016.09.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 09/05/2016] [Accepted: 09/12/2016] [Indexed: 06/06/2023]
Abstract
Innate and acquired immune responses provide critical line in defense against pathogens. MicroRNAs (miRNAs) play crucial roles in regulate gene expression in inflammation and innate immunity. However, the main role of miRNAs are in a large part unclear in aquatic organisms. In this study, we found that miR-122 displayed dramatically declined expression profiles in Vibrio anguillarum challenged miiuy croaker. Meanwhile, we have explored TLR14 as a novel target gene of miR-122 involved in miiuy croakers inflammatory and immune response, which were further estimated through negative expression profiles in both Vibrio anguillarum challenged miiuy croaker and LPS exposure macrophages. Finally, in the dual-luciferase reporter assay presented mmi-miR-122 negatively regulated the 3'-UTR of wild-type in luciferase activity rather than the mutant one in HEK-293T cells. This result demonstrated that mmi-miR-122 modulated TLR14 expression by directly targeting TLR14-3'UTR. All of the present data suggested miR-122 was involved in TLR cascade could modulate Vibrio anguillarum infection in miiuy croakers.
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Affiliation(s)
- Junxia Cui
- Laboratory of Fish Biogenetics & Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Qing Chu
- Laboratory of Fish Biogenetics & Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Tianjun Xu
- Laboratory of Fish Biogenetics & Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, 316022, China.
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Sweet MJ, Bateman KS. Reprint of 'Diseases in marine invertebrates associated with mariculture and commercial fisheries'. JOURNAL OF SEA RESEARCH 2016; 113:28-44. [PMID: 32336937 PMCID: PMC7172773 DOI: 10.1016/j.seares.2016.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 06/22/2015] [Accepted: 06/24/2015] [Indexed: 05/26/2023]
Abstract
Diseases in marine invertebrates are increasing in both frequency and intensity around the globe. Diseases in individuals which offer some commercial value are often well documented and subsequently well studied in comparison to those wild groups offering little commercial gain. This is particularly the case with those associated with mariculture or the commercial fisheries. Specifically, these include many Holothuroidea, and numerous crustacea and mollusca species. Pathogens/parasites consisting of both prokaryotes and eukaryotes from all groups have been associated with diseases from such organisms, including bacteria, viruses, fungi and protozoa. Viral pathogens in particular, appear to be an increasingly important group and research into this group will likely highlight a larger number of diseases and pathogens being described in the near future. Interestingly, although there are countless examples of the spread of disease usually associated with transportation of specific infected hosts for development of aquaculture practices, this process appears to be continuing with no real sign of effective management and mitigation strategies being implicated. Notably, even in well developed countries such as the UK and the US, even though live animal trade may be well managed, the transport of frozen food appears to be less well so and as evidence suggests, even these to have the potential to transmit pathogens when used as a food source for example.
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Affiliation(s)
- Michael J. Sweet
- Molecular Health and Disease Laboratory, University of Derby, DE22 1GB, UK
| | - Kelly S. Bateman
- European Union Reference Laboratory for Crustacean Diseases, CEFAS, Barrack Road, The Nothe, Weymouth, Dorset DT4 8UB, UK
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Chu Q, Xu T. miR-192 targeting IL-1RI regulates the immune response in miiuy croaker after pathogen infection in vitro and in vivo. FISH & SHELLFISH IMMUNOLOGY 2016; 54:537-543. [PMID: 27164215 DOI: 10.1016/j.fsi.2016.05.007] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 04/04/2016] [Accepted: 05/05/2016] [Indexed: 06/05/2023]
Abstract
Activation of innate and acquired immune responses is regulated by detailed mechanisms to control their onset and termination. MicroRNAs have been implicated as negative regulators controlling the diverse of biophysical and biochemical processes at the post-transcriptional level. However, the physiological roles of miRNAs in aquatic organisms are largely unclear. In this study, we explored the potential roles of mmi-miR-192 in regulating interleukin 1 receptor type I (IL-1RI) involved in immune and inflammatory response in miiuy croakers. This was further evaluated by negative expression profiles in both LPS exposure macrophages and Vibrio anguillarum challenged miiuy croaker. By means of promoter analysis, mmi-miR-192 was found to be an AP-1 dependent gene. Importantly, the dual luciferase reporter assay presented the regulation between mmi-miR-192 and IL-1RI. The result of miiuy croaker miR-192 reduced the wild-type IL-1RI but not the mutant one luciferase levels suggested that mmi-miR-192 modulated IL-1RI expression by directly targeting the 3'UTR of IL-1RI mRNA. Overall, our study revealed the mechanism that the miR-192-IL1RI pathway regulated bacteria infection in miiuy croakers.
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Affiliation(s)
- Qing Chu
- Laboratory of Fish Biogenetics & Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Tianjun Xu
- Laboratory of Fish Biogenetics & Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, 316022, China.
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Yang L, Chang Y, Wang Y, Wei J, Ge C, Song J. Identification and functional characterization of TNF receptor associated factor 3 in the sea cucumber Apostichopus japonicus. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2016; 59:128-135. [PMID: 26828393 DOI: 10.1016/j.dci.2016.01.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 01/22/2016] [Accepted: 01/27/2016] [Indexed: 06/05/2023]
Abstract
TNF receptor associated factors (TRAFs) are a family of proteins primarily involved in both adaptive and innate immunity. In this study, we identified a novel TRAF3 gene in Apostichopus japonicus by transcriptome sequencing and RACE approaches (designated as AjTRAF3). The full-length of AjTRAF3 was of 2796 bp including a 5' untranslated region (UTR) of 83 bp, a 3' UTR of 1066 bp and a putative open reading frame of 1647 bp encoding a polypeptide of 548 amino acid residues. The representative domains such as a RING finger domain (residues 54-96), two TRAF domains with zinc finger structure (residues 141-228), a coiled coil and a meprin and TRAF homology (MATH) domain (residues 396-522) were all detected in the deduced amino acids of AjTRAF3. AjTRAF3 was ubiquitously expressed in all examined tissues with predominant expression in the body wall and slightly weaker in intestine, respiratory tree, tube feet, coelomocytes and longitudinal muscle. Time-course expression analysis in coelomocytes revealed that AjTRAF3 was significantly depressed towards Vibrio splendidus infection with a 0.20-fold decrease at 12 h, compared to control levels. AjTRAF3 silencing could elevate intracellular ROS levels by 2.08-fold and 2.09-fold compared to each control group in vitro and in vivo, respectively. Taken together, all these results suggested that AjTRAF3 may play a crucial role in the processes of anti-bacteria response in sea cucumber through regulating ROS production.
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Affiliation(s)
- Limeng Yang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, PR China
| | - Yaqing Chang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, PR China.
| | - Yi Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, PR China
| | - Jing Wei
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, PR China
| | - Chen Ge
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, PR China
| | - Jian Song
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, PR China
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29
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Xueping S, Zhimeng L, Chenghua L, Meng L, Pengjuan Z, Weiwei Z. Identification and characterization of miR-31 potential targets by RNA-seq. FISH & SHELLFISH IMMUNOLOGY 2016; 51:26-32. [PMID: 26892793 DOI: 10.1016/j.fsi.2016.02.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Revised: 02/06/2016] [Accepted: 02/08/2016] [Indexed: 06/05/2023]
Abstract
In our previous work, miR-31 displayed differential significant expression in Apostichopus japonicus sea cucumber with skin ulcer syndrome and modulated coelomocytes ROS production by targeting p105. To identify other promising targets ofmiR-31, 4 transcriptome libraries of coelomocytes, as well as 2 control libraries, were constructed frommiR-31 mimics (31 M) or AMO-miR-31 (31I) and injected into a sea cucumber at 12 and 24 h. A total of207,977 unigenes with an average length of 363 bp were assembled, in which17,204 distinct sequences (8.27% of the unigenes) were successfully matched with annotated protein sequences. Fragments per kilobase of transcript per million fragments mapped analysis indicated that 1325 unigenes displayed up-regulated expression profiles in the 31I-12 group and were depressed in the 31M - 12 group compared with the control group. A total of 1470 unigenes showed down-regulated expressions in 31I-12 and were induced in 31 M-12. Similarly, 2079 and 2098 unigenes were detected at 24 h post-injection. Among these unigenes, 36 unigenes (depressed expression in the 31 M group and induced in the 31I group) showed consistent expression patterns at 2 examined time points and were considered promising targets of miR-31. qPCR analysis confirmed that all 4 unigenes showed opposite expression profiles to miR-31 in cultured coelomocytes. Our present work provided a fast and feasible method of identifying miR-31 targets by transcriptome analysis. The results of this study would enhance our present understanding ofmiR-31 function insea cucumber immune regulation.
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Affiliation(s)
- Sun Xueping
- School of Marine Sciences, Ningbo University, PR China
| | - Lv Zhimeng
- School of Marine Sciences, Ningbo University, PR China
| | - Li Chenghua
- School of Marine Sciences, Ningbo University, PR China.
| | - Lu Meng
- School of Marine Sciences, Ningbo University, PR China
| | | | - Zhang Weiwei
- School of Marine Sciences, Ningbo University, PR China.
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30
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Sun H, Zhou Z, Dong Y, Yang A, Jiang J, Chen Z, Guan X, Wang B, Gao S, Jiang B. Expression analysis of microRNAs related to the skin ulceration syndrome of sea cucumber Apostichopus japonicus. FISH & SHELLFISH IMMUNOLOGY 2016; 49:205-212. [PMID: 26723265 DOI: 10.1016/j.fsi.2015.12.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 12/20/2015] [Accepted: 12/21/2015] [Indexed: 06/05/2023]
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that are involved in many biological processes. To investigate the miRNAs related to skin ulceration syndrome (SUS) of Apostichopus japonicus, small RNA libraries of body wall, intestine, respiratory tree and coelomocytes from healthy and diseased A. japonicus were sequenced on Illumina Hiseq 2000 platform. A total of 247 conserved and 10 novel miRNAs were identified across all libraries. After pair-wise comparisons, 215 miRNAs in body wall, 36 in intestine, 2 in respiratory tree and 38 in coelomocytes showed significant expression differences. Further analyses were conducted on some tissue-specific differentially expressed miRNAs: miR-8 and miR-486-5p in body wall, miR-200-3p, let-7-5p and miR-125 in intestine, miR-278a-3p and bantam in respiratory, miR-10a and miR-184 in coelomocytes. Notably, these miRNAs in some species were reported to function in various physiological or pathological processes associated with immune regulations. Using stem-loop quantitative real time PCR, six representative miRNAs in four tissues were selected to validate the sequencing results. The Pearson's correlation coefficient (R) of the six miRNAs ranged from 0.777 to 0.948, which confirmed the consistency and accuracy between these two approaches. This study provides comprehensive expression and regulation patterns of functional miRNAs in different tissues and gives insights into the tissue-specific immune response mechanisms in SUS-infected A. japonicus.
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Affiliation(s)
- Hongjuan Sun
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Zunchun Zhou
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China.
| | - Ying Dong
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Aifu Yang
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Jingwei Jiang
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Zhong Chen
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Xiaoyan Guan
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Bai Wang
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Shan Gao
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
| | - Bei Jiang
- Liaoning Key Lab of Marine Fishery Molecular Biology, Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning 116023, PR China
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Sweet MJ, Bateman KS. Diseases in marine invertebrates associated with mariculture and commercial fisheries. JOURNAL OF SEA RESEARCH 2015; 104:16-32. [PMID: 32336936 PMCID: PMC7172736 DOI: 10.1016/j.seares.2015.06.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 06/22/2015] [Accepted: 06/24/2015] [Indexed: 05/15/2023]
Abstract
Diseases in marine invertebrates are increasing in both frequency and intensity around the globe. Diseases in individuals which offer some commercial value are often well documented and subsequently well studied in comparison to those wild groups offering little commercial gain. This is particularly the case with those associated with mariculture or the commercial fisheries. Specifically, these include many Holothuroidea, and numerous crustacea and mollusca species. Pathogens/parasites consisting of both prokaryotes and eukaryotes from all groups have been associated with diseases from such organisms, including bacteria, viruses, fungi and protozoa. Viral pathogens in particular, appear to be an increasingly important group and research into this group will likely highlight a larger number of diseases and pathogens being described in the near future. Interestingly, although there are countless examples of the spread of disease usually associated with transportation of specific infected hosts for development of aquaculture practices, this process appears to be continuing with no real sign of effective management and mitigation strategies being implicated. Notably, even in well developed countries such as the UK and the US, even though live animal trade may be well managed, the transport of frozen food appears to be less well so and as evidence suggests, even these to have the potential to transmit pathogens when used as a food source for example.
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Affiliation(s)
- Michael J. Sweet
- Molecular Health and Disease Laboratory, University of Derby, DE22 1GB, UK
- Corresponding author.
| | - Kelly S. Bateman
- European Union Reference Laboratory for Crustacean Diseases, CEFAS, Barrack Road, The Nothe, Weymouth, Dorset DT4 8UB, UK
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