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Peng B, Lin J, Wan H, Zou P, Zhang Z, Wang Y. Identification of toll-like receptor family and the immune function of new Sptlr-6 gene of Scylla paramamosain. FISH & SHELLFISH IMMUNOLOGY 2024; 149:109609. [PMID: 38705549 DOI: 10.1016/j.fsi.2024.109609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 02/25/2024] [Accepted: 05/02/2024] [Indexed: 05/07/2024]
Abstract
As a crucial member of pattern-recognition receptors (PRRs), the Tolls/Toll-like receptors (TLRs) gene family has been proven to be involved in innate immunity in crustaceans. In this study, nine members of TLR gene family were identified from the mud crab (Scylla paramamosain) transcriptome, and the structure and phylogeny of different SpTLRs were analyzed. It was found that different SpTLRs possessed three conserved structures in the TIR domain. Meanwhile, the expression patterns of different Sptlr genes in examined tissues detected by qRT-PCR had wide differences. Compared with other Sptlr genes, Sptlr-6 gene was significantly highly expressed in the hepatopancreas and less expressed in other tissues. Therefore, the function of Sptlr-6 was further investigated. The expression of the Sptlr-6 gene was up-regulated by Poly I: C, PGN stimulation and Vibrio parahaemolyticus infection. In addition, the silencing of Sptlr-6 in hepatopancreas mediated by RNAi technology resulted in the significant decrease of several conserved genes involved in innate immunity in mud crab after V. parahaemolyticus infection, including relish, myd88, dorsal, anti-lipopolysaccharide factor (ALF), anti-lipopolysaccharide factor 2 (ALF-2) and glycine-rich antimicrobial peptide (glyamp). This study provided new knowledge for the role of the Sptlr-6 gene in defense against V. parahaemolyticus infection in S. paramamosain.
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Affiliation(s)
- Bohao Peng
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, 361021, China; Fujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Xiamen, 361021, China
| | - Jiaming Lin
- Xiamen Ocean Vocational College, Xiamen, 361100, China
| | - Haifu Wan
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, 361021, China; Fujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Xiamen, 361021, China
| | - Pengfei Zou
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, 361021, China; Fujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Xiamen, 361021, China
| | - Ziping Zhang
- College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Yilei Wang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Fisheries College, Jimei University, Xiamen, 361021, China; Fujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Xiamen, 361021, China.
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Madushani KP, Shanaka KASN, Jung S, Kim MJ, Lee J. Ablation of myd88 alters the immune gene expression and immune cell recruitment during VHSV infection in zebrafish. FISH & SHELLFISH IMMUNOLOGY 2023; 141:109006. [PMID: 37598733 DOI: 10.1016/j.fsi.2023.109006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 08/14/2023] [Accepted: 08/17/2023] [Indexed: 08/22/2023]
Abstract
Myeloid differentiation primary response protein-88 (MYD88) is an essential adaptor molecule in pathogen-related pattern recognition signaling pathways. Toll-like and interleukin receptors recognize numerous signals and are funneled through MyD88 to express genes responsible for the innate and adaptive immune systems. In the present study, the relevance of MyD88 in viral hemorrhagic septicemia virus (VHSV) was investigated by generating myd88-/- zebrafish. The model was challenged with VHSV, and viral propagation was quantified by evaluating clinical symptoms, mortality, and VHSV copy number. The infected fish showed abnormal morphologies, such as subcutaneous hemorrhages, abdominal swelling, and bulging eyes, which were comparatively more intense in myd88-/- fish than in the wild-type. An injury infection experiment conducted in zebrafish larvae indicated a substantial spread of VHSV in the wound site. The number of neutrophils and macrophages recruited to the wounded area were markedly reduced in myd88-/- fish. According to gene expression analysis, VHSV NP gene expression was considerably upregulated in myd88-/- fish. Substantial gene expression and immune cell marker modulation were observed in the mutant model compared to that in the wild-type. These results suggest that the lack of a significant adaptor protein for immune signal transduction results in enhanced VHSV replication.
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Affiliation(s)
- K P Madushani
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju Self-Governing Province, 63333, Republic of Korea
| | - K A S N Shanaka
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju Self-Governing Province, 63333, Republic of Korea
| | - Sumi Jung
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju Self-Governing Province, 63333, Republic of Korea
| | - Myoung-Jin Kim
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju Self-Governing Province, 63333, Republic of Korea; Nakdonggang National Institute of Biological Resources, Sangju-si, Gyeongsangbuk-do, 37242, Republic of Korea.
| | - Jehee Lee
- Department of Marine Life Sciences & Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province, 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju Self-Governing Province, 63333, Republic of Korea.
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Tang S, Xu X, Yu D, Long M, Xia H, Lu Y, Gan Z. Evolutionary and functional conservation of myeloid differentiation factor 88 (MyD88) in amphibian Xenopus tropicalis. Gene 2023; 865:147332. [PMID: 36871675 DOI: 10.1016/j.gene.2023.147332] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/29/2023] [Accepted: 02/28/2023] [Indexed: 03/07/2023]
Abstract
As a universal adaptor used by most TLR members, the myeloid differentiation factor 88 (MyD88) plays essential roles in TLR-mediated inflammatory response of invertebrate and vertebrate animals, and functional features of MyD88 remain largely unknown in amphibians. In this study, a MyD88 gene named Xt-MyD88 was characterized in the Western clawed frog (Xenopus tropicalis). Xt-MyD88 and MyD88 in other species of vertebrates share similar structural characteristics, genomic structures, and flanking genes, suggesting that MyD88 is structurally conserved in different phyla of vertebrates ranging from fish to mammals. Moreover, Xt-MyD88 was widely expressed in different organs/tissues, and was induced by poly(I:C) in spleen, kidney, and liver. Importantly, overexpression of Xt-MyD88 triggered a marked activation of both NF-κB promoter and interferon-stimulated response elements (ISREs), implying that it may be play important roles in inflammatory responses of amphibians. The research represents the first characterization on the immune functions of amphibian MyD88, and reveals considerable functional conservation of MyD88 in early tetrapods.
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Affiliation(s)
- Shaoshuai Tang
- Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, and Shenzhen Public Service Platform for Evaluation of Marine Economic Animal Seedings, Shenzhen Institute of Guangdong Ocean University, Shenzhen 518120, China
| | - Xinlan Xu
- Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, and Shenzhen Public Service Platform for Evaluation of Marine Economic Animal Seedings, Shenzhen Institute of Guangdong Ocean University, Shenzhen 518120, China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, and Key Laboratory of Control for Disease of Aquatic Animals of Guangdong Higher Education Institute, College of Fishery, Guangdong Ocean University, Zhanjiang 524088, China
| | - Dapeng Yu
- Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, and Shenzhen Public Service Platform for Evaluation of Marine Economic Animal Seedings, Shenzhen Institute of Guangdong Ocean University, Shenzhen 518120, China
| | - Meng Long
- Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, and Shenzhen Public Service Platform for Evaluation of Marine Economic Animal Seedings, Shenzhen Institute of Guangdong Ocean University, Shenzhen 518120, China
| | - Hongli Xia
- Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, and Shenzhen Public Service Platform for Evaluation of Marine Economic Animal Seedings, Shenzhen Institute of Guangdong Ocean University, Shenzhen 518120, China
| | - Yishan Lu
- Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, and Shenzhen Public Service Platform for Evaluation of Marine Economic Animal Seedings, Shenzhen Institute of Guangdong Ocean University, Shenzhen 518120, China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, and Key Laboratory of Control for Disease of Aquatic Animals of Guangdong Higher Education Institute, College of Fishery, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zhen Gan
- Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, and Shenzhen Public Service Platform for Evaluation of Marine Economic Animal Seedings, Shenzhen Institute of Guangdong Ocean University, Shenzhen 518120, China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, and Key Laboratory of Control for Disease of Aquatic Animals of Guangdong Higher Education Institute, College of Fishery, Guangdong Ocean University, Zhanjiang 524088, China.
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Alradi MF, Lu S, Wang L, Han Z, Elradi SA, Khogali MK, Liu X, Wei X, Chen K, Li S, Feng C. Characterization and functional analysis of a myeloid differentiation factor 88 in Ostrinia furnacalis Guenée larvae infected by Bacillus thuringiensis. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 135:104489. [PMID: 35781013 DOI: 10.1016/j.dci.2022.104489] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/23/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023]
Abstract
Myeloid differentiation factor 88 (MyD88) is a pivotal adapter protein involved in activating nuclear factor NF-κB of the Toll pathway in insect innate immunity. MyD88 has been extensively studied in vertebrates and Drosophila. However, the information ascribed to MyD88 in Lepidoptera is scarce. In the present study, an Ostrinia furnacalis MyD88 (OfMyD88) cDNA was cloned and functionally characterized (GenBank accession no. MN906311). The complete cDNA sequence of OfMyD88 is 804 bp, and contains a 630 bp open reading frame encoding 209 amino acid residues. OfMyD88 has the death domain (DD), an intermediate domain, and the Toll/interleukin 1 receptor (TIR) domain. OfMyD88 was widely expressed in immune-related tissues such as hemocytes, fat body, midgut, and integument, with the highest expression level in hemocytes, and the lowest expression level in integument. To clarify the immune function of MyD88, O. furnacalis larvae were challenged with Bacillus thuringiensis (Bt) through feeding. Bt oral infection had significantly up-regulated the expression of OfMyD88 and immune genes, including PPO2 (prophenoloxidase 2), Attacin, Gloverin, Cecropin, Moricin, GRP3 (β-1, 3-Glucan recognition protein 3), and Lysozyme, and increased the activities of PO and lysozyme in hemolymph of O. furnacalis larvae. Knockdown of OfMyD88 by RNA interference suppressed the expression levels of immune related genes, but not PPO2 in the larvae orally infected with Bt, suggesting that OfMyD88 is involved in defending against Bt invasion through the Toll signaling pathway, but does not affect the PPO expression in O. furnacalis larvae.
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Affiliation(s)
- Mohamed F Alradi
- Department of Plant Protection, College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Department of Medical Entomology, College of Public and Environmental Health, University of Khartoum, Khartoum, Khartoum State, 13314, Sudan
| | - Shiqi Lu
- Department of Plant Protection, College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Libao Wang
- Department of Plant Protection, College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Zhaoyang Han
- Department of Plant Protection, College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Sana A Elradi
- Department of Physiology, College of Medicine, University of Khartoum, Khartoum, Khartoum State, 13314, Sudan
| | - Mawahib K Khogali
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China; Department of Poultry Production, Faculty of Animal Production, University of Khartoum, Khartoum, Khartoum State, 13314, Sudan
| | - Xu Liu
- Department of Plant Protection, College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Xiangyi Wei
- Department of Plant Protection, College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Kangkang Chen
- Department of Plant Protection, College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Shuzhong Li
- Department of Plant Protection, College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Congjing Feng
- Department of Plant Protection, College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, China.
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Qu F, She Q, Li J, Zeng X, Li Y, Liu X, Ren L, Liu Z, Gao C, Lu X, Long M, Li X. Molecular Characterization of MyD88 in Anodonta woodiana and Its Involvement in the Innate Immune Response to Bacterial Infection. Front Immunol 2022; 13:925168. [PMID: 35757761 PMCID: PMC9226314 DOI: 10.3389/fimmu.2022.925168] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 05/16/2022] [Indexed: 12/18/2022] Open
Abstract
Myeloid differentiation factor 88 (MyD88) is a key adapter molecule in Toll-like receptor signal transduction that triggers downstream immune cascades involved in the host defense response to exogenous pathogens. However, the function of MyD88s in mollusks, especially in freshwater shellfish, remains poorly understood. In this study, a novel freshwater shellfish MyD88 (denoted AwMyD88) was characterized from Anodonta woodiana. The present AwMyD88 protein consists of 474 amino acids and contains a conserved a typical death domain (DD) and a conservative Toll/IL-1R (TIR) domain with three typical boxes. Quantitative real-time PCR (qRT-PCR) analysis showed that AwMyD88 was broadly expressed in all the examined tissues, and the highest expression level was observed in hemocytes of A. woodiana. When challenged with Aeromonas hydrophila and lipopolysaccharide (LPS), the mRNA expression levels of AwMyD88 were significantly induced in hemocytes of A. woodiana in vivo and in vitro. In addition, in vivo injection experiments revealed that MyD88 signaling pathway genes showed strong responsiveness to A. hydrophila challenge, and their expression levels were significantly upregulated in hemocytes. Knockdown of AwMyD88 reduced the transcript levels of immune related transcription factors (AwNF-κB and AwAP-1) and effectors (AwTNF, AwLYZ, AwDefense and AwAIF) during A. hydrophila infection. Moreover, subcellular localization analysis indicated that AwMyD88 was mainly localized to the cytoplasm in HEK293T cells. Finally, luciferase reporter assays revealed that AwMyD88 associates with AwTLR to activate the NF-κB and AP-1 signaling pathways in HEK293T cells. These results suggested that AwMyD88 might be involved in the host defense response to bacterial challenge, providing new insight into the immune function of the MyD88 signaling pathway in freshwater shellfish.
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Affiliation(s)
- Fufa Qu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Qing She
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Jialing Li
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Xuan Zeng
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Yumiao Li
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Xinyu Liu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Lingxin Ren
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Zhenzhen Liu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Chaoran Gao
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Xinyu Lu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Mengyao Long
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
| | - Xinya Li
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha, China
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Treatment Effect of Mometasone Furoate Cream on Lichen Sclerosus et Atrophicus of External Genitalia in Boys and Its Correlation with Toll-Like Receptor 4 and Myeloid Differentiation Factor 88. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:3495099. [PMID: 35399843 PMCID: PMC8989574 DOI: 10.1155/2022/3495099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/07/2022] [Accepted: 03/16/2022] [Indexed: 02/07/2023]
Abstract
Objective The objective is to explore the treatment effect of mometasone furoate cream on lichen sclerosus et atrophicus (LSeA) of external genitalia in boys and its correlation with Toll-like receptor 4 (TLR4) and myeloid differentiation factor 88 (MyD88). Methods A total of 100 boys treated in our hospital from January 2021 to January 2023 due to clinical manifestations in the external genitalia were selected as the study objects. All boys received redundant circumcision treatment, their protein expression of TLR4 and MyD88 in foreskin tissues was measured by BCA protein assay and western blot, and mometasone furoate cream was applied to those who were pathologically diagnosed with LSeA, so as to compare the levels of serum inflammatory factors and urodynamic indicators in the child patients before and after treatment. Results The total clinical efficacy rate of LSeA child patients was up to 90.79%; after treatment, the maximum and mean urinary flow rates of child patients were significantly higher than before treatment (P < 0.001); compared with the non-LSeA group, the protein expression of TLR4, MyD88, and NF-κB was increased in the LSeA group (P < 0.001), and the mRNA expression of TLR4, MyD88, and NF-κB was significantly increased in the LSeA group (P < 0.001); the results of ROC curves showed that TLR4 had the highest AUC value, and during treatment, the incidence rate of adverse reactions in child patients was 6.58%. Conclusion LSeA will increase the inflammatory reactions in child patients, and its pathogenesis may be related to the upregulation of TLR4, MyD88, NF-κB expression and thus activation of TLR4/MyD88/NF-κB signaling pathways. Applying mometasone furoate cream to LSeA patients after redundant circumcision can effectively reduce the inflammatory reactions in the body and improve their urodynamic indicators, with exact efficacy. Further research will be conducive to establishing a better treatment scheme for such child patients.
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Zhang W, Zhao XY, Wu J, Jin L, Lv J, Gao B, Liu P. Screening and Verification of Molecular Markers and Genes Related to Salt-Alkali Tolerance in Portunus trituberculatus. Front Genet 2022; 13:755004. [PMID: 35211153 PMCID: PMC8861530 DOI: 10.3389/fgene.2022.755004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 01/12/2022] [Indexed: 11/13/2022] Open
Abstract
Salt-alkali tolerance is one of the important breeding traits of Portunus trituberculatus. Identification of molecular markers linked to salt-alkali tolerance is prerequisite to develop such molecular marker-assisted breeding. In this study, Bulked Segregant Analysis (BSA) was used to screen molecular markers associated with salt-alkali tolerance trait in P. trituberculatus. Two DNA mixing pools with significant difference in salt-alkali tolerance were prepared and 94.83G of high-quality sequencing data was obtained. 855 SNPs and 1051 Indels were firstly selected as candidate markers by BSA analysis, out of which, 20 markers were further selected via △index value (close to 0 or 1) and eight of those were successfully verified. In addition, based on the located information of the markers in genome, eight candidate genes related to salt-alkali tolerance were anchored including ubiquitin-conjugating enzyme, aspartate-tRNA ligase, vesicle-trafficking protein, and so on. qPCR results showed that the expression patterns of all these genes changed significantly after salt-alkali stress, suggesting that they play certain roles in salt-alkali adaptation. Our results will provide applicable markers for molecular marker-assisted breeding and help to clarify the mechanisms of salt-alkali adaptation of P. trituberculatus.
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Affiliation(s)
- Wen Zhang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, P.R.China, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,College of marine technology and environment, Dalian Ocean University, Dalian, China
| | - Xiao Yan Zhao
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, P.R.China, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Jie Wu
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, P.R.China, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Ling Jin
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, P.R.China, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Jianjian Lv
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, P.R.China, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,Function Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Baoquan Gao
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, P.R.China, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,Function Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Ping Liu
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, P.R.China, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,Function Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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Zhou SM, Zhao JJ, Wang Y, Jin S, Zhou QC, Yin F. Identification and function analysis of an immune deficiency homolog in swimming crab, Portunus trituberculatus. FISH & SHELLFISH IMMUNOLOGY 2022; 121:245-253. [PMID: 35031475 DOI: 10.1016/j.fsi.2022.01.014] [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: 12/15/2021] [Revised: 01/05/2022] [Accepted: 01/08/2022] [Indexed: 06/14/2023]
Abstract
The immune deficiency (IMD) pathway is involved in both antiviral and antibacterial immune responses in Drosophila. IMD protein is the key adaptor to link the extracellular signal and the intracellular reaction to initiate the signal transduction in IMD pathway. In present study, the cDNA of the IMD (Pt-IMD) was identified from a marine crab, Portunus trituberculatus. The Pt-IMD is predicted to encode 170 amino acids with a death domain. Real-Time quantitative PCR analysis showed that Pt-IMD was constitutively expressed in hemocytes, intestine, gill, heart, muscle and hepatopancreas in normal crab. Moreover, the transcript of Pt-IMD in large-granule hemocytes is approximately 6-fold higher than semi-granular cells and agranular cells. Intracellular localization showed Pt-IMD was distributed mainly in the cytoplasm when it was over-expressed in Drosophila Schneider 2 (S2) cell. Functionally, over-expression of Pt-IMD could activate the promoters of Drosophila antimicrobial peptide genes (AMPs) in S2 cell. Furthermore, Pt-IMD expression was also knock-down by RNAi to determine the function of Pt-IMD on regulation of the expression of different antimicrobial peptides (AMPs) in crab. In the primary cultured hemocytes challenged with or without Vibrio alginolyticus, after Pt-IMD was knocked-down by specific long double strand RNA, the expression of anti-lipopolysaccharide factor1 (ALF1), ALF3, crustin1, crustin3, arasin2, hyastatin1and hyastatin3 have been significantly inhibited in normal cell or bacterial infected cell, while the expression of lysozyme was normal in non-infected cells and was significantly induced in bacterial infected cells, which compared to the non-specific dsRNA treated cells.
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Affiliation(s)
- Su-Ming Zhou
- Key Laboratory of the Ministry of Education for Applied Marine Biotechnology, School of Marine Science, Ningbo University, Ningbo, 315211, China
| | - Jiao-Jiao Zhao
- Key Laboratory of the Ministry of Education for Applied Marine Biotechnology, School of Marine Science, Ningbo University, Ningbo, 315211, China
| | - Yan Wang
- Key Laboratory of the Ministry of Education for Applied Marine Biotechnology, School of Marine Science, Ningbo University, Ningbo, 315211, China
| | - Shan Jin
- Key Laboratory of the Ministry of Education for Applied Marine Biotechnology, School of Marine Science, Ningbo University, Ningbo, 315211, China
| | - Qi-Cun Zhou
- Key Laboratory of the Ministry of Education for Applied Marine Biotechnology, School of Marine Science, Ningbo University, Ningbo, 315211, China
| | - Fei Yin
- Key Laboratory of the Ministry of Education for Applied Marine Biotechnology, School of Marine Science, Ningbo University, Ningbo, 315211, China.
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Perveen S, Yang L, Zhou S, Feng B, Xie X, Zhou Q, Qian D, Wang C, Yin F. β-1,3-Glucan from Euglena gracilis as an immunostimulant mediates the antiparasitic effect against Mesanophrys sp. on hemocytes in marine swimming crab (Portunus trituberculatus). FISH & SHELLFISH IMMUNOLOGY 2021; 114:28-35. [PMID: 33848639 DOI: 10.1016/j.fsi.2021.04.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/01/2021] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
β-1,3-glucans, natural polysaccharide groups, exert immunomodulatory effects to improve the innate response and disease resistance in aquatic species and mammals. However, this β-glucan stimulant is yet to be assayed in swimming crab (Portunus trituberculatus) hemocytes. In this study, we explored the immunomodulatory effect of β-1,3-glucans (derived from Euglena gracilis) via in vitro 24 h stimulation assays in swimming crab hemocytes. We found that this algal β-1,3-glucans in crab hemocytes significantly elevated cellular enzymes related parameters, including phenoloxidase (PO), lysozyme, acid phosphatase (ACP) activities, and superoxide anion generation (O2-) rate both at intracellular (P < 0.05) and extracellular (P < 0.05) levels. Besides, alkaline phosphatase (AKP) in hemocytes exhibited no significant differences across the groups (P > 0.05). β-glucan significantly influenced (P < 0.05) the activities of the antioxidant enzyme, superoxide dismutase (SOD) in hemocytes. Moreover, the relative mRNA expression of numerous immune-related genes, including proPO, TLR-2, Alf-1, NOX, Lysozyme, Crustin-1, and Cuznsod, was significantly higher stimulated hemocytes than in control (P < 0.05). We also reported the dose-dependent antiparasitic activity against Mesanophyrs sp., in stimulated hemocytes than in the control (P < 0.05). The present study collectively demonstrated that β-glucan potentially stimulates innate immunity by elevating cellular enzyme responses and up-regulating the mRNA expression of genes associated with crab innate immunity. Thus, β-glucan is a promising immunostimulant for swimming crab farming in crustaceans aquaculture.
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Affiliation(s)
- Summia Perveen
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education; Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture; School of Marine Sciences, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China
| | - Lujia Yang
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education; Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture; School of Marine Sciences, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China
| | - Suming Zhou
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education; Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture; School of Marine Sciences, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China
| | - Bo Feng
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education; Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture; School of Marine Sciences, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China
| | - Xiao Xie
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education; Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture; School of Marine Sciences, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China
| | - Qicun Zhou
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education; Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture; School of Marine Sciences, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China
| | - Dong Qian
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education; Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture; School of Marine Sciences, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China
| | - Chunlin Wang
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education; Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture; School of Marine Sciences, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China.
| | - Fei Yin
- Key Laboratory of Applied Marine Biotechnology, Ministry of Education; Collaborative Innovation Center for Zhejiang Marine High-efficiency and Healthy Aquaculture; School of Marine Sciences, Ningbo University, 818 Fenghua Road, Ningbo, 315211, PR China.
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10
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Gao Q, Tang Q, Xia Z, Yi S, Cai M, Du H, Yang J, Li J, Xing Q, Luo J, Yang G. Molecular identification and functional analysis of MyD88 in giant freshwater prawn (Macrobrachium rosenbergii) and expression changes in response to bacterial challenge. Int J Biol Macromol 2021; 178:492-503. [PMID: 33647335 DOI: 10.1016/j.ijbiomac.2021.02.177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/25/2020] [Accepted: 02/23/2021] [Indexed: 02/08/2023]
Abstract
Myeloid differentiation factor 88 (MyD88) is a crucial adaptor protein for Toll-like receptor (TLR)-mediated signaling pathways and plays an important role in immune response. In this study, the full-length cDNA of MyD88 from Macrobrachium rosenbergii (MRMyD88) was cloned. The MRMyD88 cDNA is 1758 bp long and contains a 1398-bp open reading frame. Multiple sequence alignment and phylogenetic analysis revealed that the amino acid sequence of MRMyD88 shared high identity with the known MyD88 proteins. The MRMyD88 mRNA was widely expressed in all examined tissues, with highest level in intestine, followed by gonad and pleopod. Furthermore, the MRMyD88 promoter region, spanning 1622 bp, contains several transcription factor-binding sites, including nine GATA-1 box motifs. Electrophoretic mobility shift assay showed that Gfi-1, SRF, and Oct-1 bind to the upstream region of MRMyD88. Additionally, the results showed that the expression levels of TLR1, TLR2 and TLR3 were different in response to Vibrio anguillarum, Lactobacillus plantarum and Aeromonas hydrophila infections. However, these bacteria significantly increased the expression levels of MyD88 and prophenoloxidase. These data suggest that the TLR-mediated signaling pathway is MyD88-dependent in response to pathogenic and probiotic bacteria in M. rosenbergii.
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Affiliation(s)
- Quanxin Gao
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development; Key Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Chinese Academy of Fishery Sciences; Huzhou Cent Hosp, Huzhou University; College of Life Science, Huzhou University, Huzhou 313000, PR China
| | - Qiongying Tang
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development; Key Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Chinese Academy of Fishery Sciences; Huzhou Cent Hosp, Huzhou University; College of Life Science, Huzhou University, Huzhou 313000, PR China
| | - Zhenglong Xia
- Jiangsu Shufeng Prawn Breeding Co., LTD., Gaoyou 225654, PR China
| | - Shaokui Yi
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development; Key Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Chinese Academy of Fishery Sciences; Huzhou Cent Hosp, Huzhou University; College of Life Science, Huzhou University, Huzhou 313000, PR China
| | - Miuying Cai
- Jiangsu Shufeng Prawn Breeding Co., LTD., Gaoyou 225654, PR China
| | - Houkuan Du
- Jiangsu Shufeng Prawn Breeding Co., LTD., Gaoyou 225654, PR China
| | - Jie Yang
- Jiangsu Shufeng Prawn Breeding Co., LTD., Gaoyou 225654, PR China
| | - Jingfen Li
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development; Key Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Chinese Academy of Fishery Sciences; Huzhou Cent Hosp, Huzhou University; College of Life Science, Huzhou University, Huzhou 313000, PR China
| | - Qianqian Xing
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development; Key Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Chinese Academy of Fishery Sciences; Huzhou Cent Hosp, Huzhou University; College of Life Science, Huzhou University, Huzhou 313000, PR China
| | - Jinping Luo
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development; Key Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Chinese Academy of Fishery Sciences; Huzhou Cent Hosp, Huzhou University; College of Life Science, Huzhou University, Huzhou 313000, PR China
| | - Guoliang Yang
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development; Key Laboratory of Aquatic Animal Genetic Breeding and Nutrition, Chinese Academy of Fishery Sciences; Huzhou Cent Hosp, Huzhou University; College of Life Science, Huzhou University, Huzhou 313000, PR China; Jiangsu Shufeng Prawn Breeding Co., LTD., Gaoyou 225654, PR China.
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11
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Xie Y, Wan H, Zeng X, Zhang Z, Wang Y. Characterization and antimicrobial evaluation of a new Spgly-AMP, glycine-rich antimicrobial peptide from the mud crab Scylla paramamosain. FISH & SHELLFISH IMMUNOLOGY 2020; 106:384-392. [PMID: 32771609 DOI: 10.1016/j.fsi.2020.08.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/30/2020] [Accepted: 08/05/2020] [Indexed: 06/11/2023]
Abstract
Antimicrobial peptide (AMP) is a crucial component of the innate immune system in crustaceans. In mud crab, Scylla paramamosain, a commercially important species, a glycine-rich antimicrobial peptide (Spgly-AMP) gene was newly identified and putatively encoded a 26aa signal peptide and 37aa mature peptide. To understand the function of Spgly-AMP, the expression profile of Spgly-amp gene was characterized, which showed Spgly-amp was expressed widely in most tissues of adult crabs with the highest expression level in hemocytes. After Vibrio parahaemolyticus, PGN, or Poly I:C stimulations, the expression level of Spgly-amp was significantly up-regulated in the hemocytes. In antimicrobial assays, chemically synthesized Spgly-AMP peptides exhibited strong antibacterial activities against both Gram-positive and Gram-negative bacteria and high thermal stability after high-temperature heating. These findings in the present study verified the importance of the Spgly-AMP in defense of pathogenic bacteria infection in the mud crab and provided a promising candidate of antimicrobial agents in the crab aquaculture.
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Affiliation(s)
- Yichao Xie
- Fujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Fisheries College, Jimei University, Xiamen, 361021, China; Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, China
| | - Haifu Wan
- Fujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Fisheries College, Jimei University, Xiamen, 361021, China; Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, China
| | - Xianyuan Zeng
- Fujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Fisheries College, Jimei University, Xiamen, 361021, China; Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, China
| | - Ziping Zhang
- College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, China.
| | - Yilei Wang
- Fujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Fisheries College, Jimei University, Xiamen, 361021, China; Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, China.
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12
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Molecular characterization of TLR3 and TRIL in silvery pomfret (Pampus argenteus) and their expression profiles in response to bacterial components. Int J Biol Macromol 2020; 155:805-813. [DOI: 10.1016/j.ijbiomac.2020.03.246] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/15/2020] [Accepted: 03/29/2020] [Indexed: 01/14/2023]
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