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Ayres BS, Varela Junior AS, Corcini CD, Lopes EM, Nery LEM, Maciel FE. Effects of high temperature and LPS injections on the hemocytes of the crab Neohelice granulata. J Invertebr Pathol 2024; 205:108144. [PMID: 38810835 DOI: 10.1016/j.jip.2024.108144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 05/13/2024] [Accepted: 05/26/2024] [Indexed: 05/31/2024]
Abstract
Temperature fluctuations, particularly elevated temperatures, can significantly affect immune responses. These fluctuations can influence the immune system and alter its response to infection signals, such as lipopolysaccharide (LPS). Therefore, this study was designed to investigate how high temperatures and LPS injections collectively influence the immune system of the crab Neohelice granulata. Two groups were exposed to 20 °C (control) or 33 °C for four days. Subsequently, half were injected with 10 μL of physiological crustacean (PS), while the rest received 10 μL of LPS [0.1 mg.kg-1]. After 30 min, the hemolymph samples were collected. Hemocytes were then isolated and assessed for various parameters using flow cytometry, including cell integrity, DNA fragmentation, total hemocyte count (THC), differential hemocyte count (DHC), reactive oxygen species (ROS) level, lipid peroxidation (LPO), and phagocytosis. Results showed lower cell viability at 20 °C, with more DNA damage in the same LPS-injected animals. There was no significant difference in THC, but DHC indicated a decrease in hyaline cells (HC) at 20 °C following LPS administration. In granular cells (GC), an increase was observed after both PS and LPS were injected at the same temperature. In semi-granular cells (SGC), there was a decrease at 20 °C with the injection of LPS, while at a temperature of 33 °C, the SGC there was a decrease only in SGC injected with LPS. Crabs injected with PS and LPS at 20 °C exhibited higher levels of ROS in GC and SGC, while at 33 °C, the increase was observed only in GC and SGC cells injected with LPS. A significant increase in LPO was observed only in SGC cells injected with PS and LPS at 20 °C and 33 °C. Phagocytosis decreased in animals at 20 °C with both injections and exposed to 33 °C only in those injected with LPS. These results suggest that elevated temperatures induce changes in immune system parameters and attenuate the immune responses triggered by LPS.
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Affiliation(s)
- Bruna Soares Ayres
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Av. Itália, Km 8, Rio Grande, RS 96201-900, Brazil
| | - Antonio Sergio Varela Junior
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Av. Itália, Km 8, Rio Grande, RS 96201-900, Brazil
| | - Carine Dahl Corcini
- Faculdade de Medicina Veterinária, Universidade Federal de Pelotas- UFPEL, Campus Universitário, S / N, Capão do Leão, Pelotas, RS 96160-000, Brazil
| | - Eduarda Marques Lopes
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Av. Itália, Km 8, Rio Grande, RS 96201-900, Brazil
| | - Luiz Eduardo Maia Nery
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Av. Itália, Km 8, Rio Grande, RS 96201-900, Brazil
| | - Fábio Everton Maciel
- Programa de Pós-Graduação em Ciências Fisiológicas, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Av. Itália, Km 8, Rio Grande, RS 96201-900, Brazil.
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Kumar V, Roy S, Behera BK, Das BK. Heat Shock Proteins (Hsps) in Cellular Homeostasis: A Promising Tool for Health Management in Crustacean Aquaculture. Life (Basel) 2022; 12:1777. [PMID: 36362932 PMCID: PMC9699388 DOI: 10.3390/life12111777] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 09/28/2023] Open
Abstract
Heat shock proteins (Hsps) are a family of ubiquitously expressed stress proteins and extrinsic chaperones that are required for viability and cell growth in all living organisms. These proteins are highly conserved and produced in all cellular organisms when exposed to stress. Hsps play a significant role in protein synthesis and homeostasis, as well as in the maintenance of overall health in crustaceans against various internal and external environmental stresses. Recent reports have suggested that enhancing in vivo Hsp levels via non-lethal heat shock, exogenous Hsps, or plant-based compounds, could be a promising strategy used to develop protective immunity in crustaceans against both abiotic and biotic stresses. Hence, Hsps as the agent of being an immune booster and increasing disease resistance will present a significant advancement in reducing stressful conditions in the aquaculture system.
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Affiliation(s)
| | | | - Bijay Kumar Behera
- Aquatic Environmental Biotechnology and Nanotechnology (AEBN) Division, ICAR-Central Inland Fisheries Research Institute (CIFRI), Barrackpore 700120, India
| | - Basanta Kumar Das
- Aquatic Environmental Biotechnology and Nanotechnology (AEBN) Division, ICAR-Central Inland Fisheries Research Institute (CIFRI), Barrackpore 700120, India
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Liu M, Ni H, Zhang X, Sun Q, Wu X, He J. Comparative transcriptomics reveals the immune dynamics during the molting cycle of swimming crab Portunus trituberculatus. Front Immunol 2022; 13:1037739. [PMID: 36389847 PMCID: PMC9659622 DOI: 10.3389/fimmu.2022.1037739] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 10/10/2022] [Indexed: 03/22/2024] Open
Abstract
Molting is one of the most important biological processes of crustacean species, and a number of molecular mechanisms facilitate this complex procedure. However, the understanding of the immune mechanisms underlying crustacean molting cycle remains very limited. This study performed transcriptome sequencing in hemolymph and hepatopancreas of the swimming crab (Portunus trituberculatus) during the four molting stages: post-molt (AB), inter-molt (C), pre-molt (D), and ecdysis (E). The results showed that there were 78,572 unigenes that were obtained in the hemolymph and hepatopancreas of P. trituberculatus. Further analysis showed that 98 DEGs were involved in immunity response of hemolymph and hepatopancreas, and most of the DEGs participated in the process of signal transduction, pattern recognition proteins/receptors, and antioxidative enzymes system. Specifically, the key genes and pathway involved in signal transduction including the GPCR126, beta-integrin, integrin, three genes in mitogen-activated protein kinase (MAPK) signaling cascade (MAPKKK10, MAPKK4, and p38 MAPK), and four genes in Toll pathway (Toll-like receptor, cactus, pelle-like kinase, and NFIL3). For the pattern recognition proteins/receptors, the lowest expression level of 11 genes was found in the E stage, including C-type lectin receptor, C-type lectin domain family 6 member A and SRB3/C in the hemolymph, and hepatopancreatic lectin 4, C-type lectin, SRB, Down syndrome cell adhesion molecule homolog, Down syndrome cell adhesion molecule isoform, and A2M. Moreover, the expression level of copper/zinc superoxide dismutase isoform 4, glutathione peroxidase, glutathione S-transferase, peroxiredoxin, peroxiredoxin 6, and dual oxidase 2 in stage C or stage D significantly higher than that of stage E or stage AB. These results fill in the gap of the continuous transcriptional changes that are evident during the molting cycle of crab and further provided valuable information for elucidating the molecular mechanisms of immune regulation during the molting cycle of crab.
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Affiliation(s)
- Meimei Liu
- Zhejiang Marine Fisheries Research Institute, Key Laboratory of Mariculture & Enhancement of Zhejiang Province, Zhoushan, China
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, China
| | - Hongwei Ni
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, China
| | - Xiaokang Zhang
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, China
| | - Qiufeng Sun
- Centre for Research on Environmental Ecology and Fish Nutrition of Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China
| | - Xugan Wu
- Centre for Research on Environmental Ecology and Fish Nutrition of Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China
| | - Jie He
- Zhejiang Marine Fisheries Research Institute, Key Laboratory of Mariculture & Enhancement of Zhejiang Province, Zhoushan, China
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Wang S, Li H, Chen R, Jiang X, He J, Li C. TAK1 confers antibacterial protection through mediating the activation of MAPK and NF-κB pathways in shrimp. FISH & SHELLFISH IMMUNOLOGY 2022; 123:248-256. [PMID: 35301113 DOI: 10.1016/j.fsi.2022.03.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/06/2022] [Accepted: 03/11/2022] [Indexed: 06/14/2023]
Abstract
MAPK and NF-κB pathways are important components of innate immune system in multicellular animals. In some model organisms, the MAP3-kinase TGF-beta-activated kinase 1 (TAK1) have been shown to regulate both MAPK and NF-κB pathways activation to tailor immune responses to pathogens or infections. However, this process is not fully understood in shrimp. In this study, we investigated the effect of TAK1 on MAPK and NF-κB activation in shrimp Litopenaeus vannamei following Vibrio parahaemolyticus infection. We found that shrimp TAK1 could activate c-Jun and Relish, the transcription factors of MAPK pathway and NF-κB pathway, respectively. Specifically, over-expression of shrimp TAK1 was able to strongly induce the activities of both AP-1 and NF-κB reporters. TAK1 was shown to bind several MAP2-kinases, including MKK4, MKK6 and MKK7, and induced their phosphorylations, the hallmarks for MAPK pathways activation. TAK1 knockdown in vivo also inhibited the nuclear translocation of c-Jun and Relish during V. parahaemolyticus infection. Accordingly, ectopic expression of shrimp TAK1 in Drosophila S2 cells increased the cleavage of co-expressed shrimp Relish, and induced the promoter activity of Relish targeted gene Diptericin (Dpt). Furthermore, knockdown of c-Jun and Relish enhanced the sensitivity of shrimp to V. parahaemolyticus infection. These findings indicated that shrimp TAK1 conferred antibacterial protection through regulating the activation of both MAPK pathway and NF-κB pathway, and suggested that the TAK1-MAPK/NF-κB axis could be a potential therapeutic target for enhancing antibacterial responses in crustaceans.
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Affiliation(s)
- Sheng Wang
- State Key Laboratory of Biocontrol/ Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering/ Guangdong Provincial Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, PR China
| | - Haoyang Li
- State Key Laboratory of Biocontrol/ Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering/ Guangdong Provincial Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, PR China
| | - Rongjian Chen
- Guangdong Hisenor Group Co., Ltd, Guangzhou, PR China
| | - Xiewu Jiang
- Guangdong Hisenor Group Co., Ltd, Guangzhou, PR China
| | - Jianguo He
- State Key Laboratory of Biocontrol/ Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering/ Guangdong Provincial Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, PR China
| | - Chaozheng Li
- State Key Laboratory of Biocontrol/ Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering/ Guangdong Provincial Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, PR China.
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Aweya JJ, Zhuang K, Liu Y, Fan J, Yao D, Wang F, Chen X, Li S, Ma H, Zhang Y. The ARM repeat domain of hemocyanin interacts with MKK4 to modulate antimicrobial peptides expression. iScience 2022; 25:103958. [PMID: 35265821 PMCID: PMC8898971 DOI: 10.1016/j.isci.2022.103958] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 02/03/2022] [Accepted: 02/17/2022] [Indexed: 11/02/2022] Open
Abstract
The mitogen-activated protein kinase (MAPK) intracellular signaling pathway mediates numerous biological processes, including antimicrobial immune response by inducing antimicrobial peptides (AMPs) production. Although MAPK signaling cascade proteins have been identified in penaeid shrimp, their modulation via the MKK4-p38-c-Jun cascade and effect on AMPs production is unknown. Here, we show that hemocyanin (PvHMC), antimicrobial peptides (anti-lipopolysaccharide factor, crustin, and penaeidins), and MKK4-p38-c-Jun cascade proteins are simultaneously induced by pathogens (Vibrio parahaemolyticus, Staphylococcus aureus, and white spot syndrome virus) in Penaeus vannamei. Intriguingly, knockdown of PvHMC with or without pathogen challenge attenuated the expression of MKK4-p38-c-Jun cascade proteins and their phosphorylation level, which consequently decreased AMPs expression. Further analysis revealed that PvHMC interacts via its armadillo (ARM) repeat domain with PvMKK4 to modulate the p38 MAPK signaling pathway. Thus, the ARM repeat domain enables penaeid shrimp hemocyanin to modulate AMPs expression during antimicrobial response by activating the p38 MAPK signaling pathway. Pathogens induce hemocyanin, MKK4-p38-c-Jun proteins, and antimicrobial peptide genes Hemocyanin modulates MKK4-p38-c-Jun cascade proteins to regulate AMPs gene expression Hemocyanin interacts with MKK4 to modulate p38 MAPK signaling in penaeid shrimp Deletion of the ARM repeat domain attenuates the interaction of hemocyanin with MKK4
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Wang Y, Han Y, Wang Y, Lv M, Li Y, Niu D. Expression of p38MAPK and its regulation of apoptosis under high temperature stress in the razor clam Sinonovacula constricta. FISH & SHELLFISH IMMUNOLOGY 2022; 122:288-297. [PMID: 35172214 DOI: 10.1016/j.fsi.2022.02.020] [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: 11/22/2021] [Revised: 02/08/2022] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
p38MAPK is a key branch of the MAPK (mitogen-activated protein kinase) pathway that plays an important role in physiological processes such as apoptosis, cell proliferation and growth. In this experiment, we screened and identified one p38MAPK gene in the razor clam Sinonovacula constricta, which encoded 359 amino acids and was widely expressed in various adult tissues. After 24 h of high temperature stress at 34 °C, the transcript expression of p38MAPK showed significant changes in all tested tissues. In particular in the gill and hepatopancreas tissues, where the expression increased 1.81 and 7.83 times compared with the control group, respectively (P < 0.01). Furthermore, we examined the expression of the apoptosis suppressor gene Bcl-2 and pro-apoptosis gene Bax by knock-down of p38MAPK with dsRNA interference in the gill and hepatopancreas tissues. The obvious up-regulation expression of Bcl-2 and significant suppression of Bax were observed, respectively (P < 0.01). Moreover, the TUNEL staining technique was used to detect apoptosis before and after interference. The degree of apoptosis in the gill and hepatopancreas tissues was reduced after interference with p38MAPK, and the ROS content was significantly reduced (P < 0.01). The results suggested that p38MAPK had a regulatory role in the heat tolerance of razor clams.
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Affiliation(s)
- Yizhen Wang
- Shanghai Collaborative Innovation Center for Cultivating Elite Breeds and Green-culture of Aquaculture Animals, Shanghai Ocean University, Shanghai, 201306, China
| | - Yuting Han
- Shanghai Collaborative Innovation Center for Cultivating Elite Breeds and Green-culture of Aquaculture Animals, Shanghai Ocean University, Shanghai, 201306, China
| | - Yanhui Wang
- Shanghai Collaborative Innovation Center for Cultivating Elite Breeds and Green-culture of Aquaculture Animals, Shanghai Ocean University, Shanghai, 201306, China
| | - Min Lv
- Shanghai Collaborative Innovation Center for Cultivating Elite Breeds and Green-culture of Aquaculture Animals, Shanghai Ocean University, Shanghai, 201306, China
| | - Yifeng Li
- Shanghai Collaborative Innovation Center for Cultivating Elite Breeds and Green-culture of Aquaculture Animals, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Donghong Niu
- Shanghai Collaborative Innovation Center for Cultivating Elite Breeds and Green-culture of Aquaculture Animals, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China.
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Zhu T, Xu L, Peng J, Chen M, Xu H. Molecular characteristics and immune function of ubiquitin C-terminal hydrolase-L3 in Macrobrachium nipponense. FISH & SHELLFISH IMMUNOLOGY 2022; 121:295-304. [PMID: 35032678 DOI: 10.1016/j.fsi.2022.01.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 01/04/2022] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
Ubiquitin C-terminal hydrolase-L3 (UCHL3) is a deubiquitinating enzyme involved in the repair mechanism of homologous recombinations of DNA double strand breaks (DBS). However, the role of UCHL3 in crustacean immune regulation has not been studied. In this experiment, we cloned and analyzed the expression profile of the UCHL3 gene from Macrobrachium nipponense (MnUCHL3). The obtained full-length cDNA of the MnUCHL3 transcript was 1192 bp, and it had a 687 bp open reading frame encoding a 228 amino acid protein, and the structure of UCHL3 is highly similar to that of other invertebrates. Real-time PCR results indicated that MnUCHL3 was expressed in all detected tissues, with the highest expression levels in the hepatopancreas, and the expression of MnUCHL3 in the gill and hepatopancreas was downregulated to different degrees within 48 h after the infection of viruses and bacteria. Furthermore, knockdown of MnUCHL3 expression by double-stranded RNA (dsRNA) injection in Aeromonas hydrophila-infected prawns increased prawn mortality and bacterial growth. In addition, overexpression of MnUCHL3 in HEK293T cells in vitro suggested that MnUCHL3 could activate the NF-κB signal path and the expression levels of NF-κB signaling cascade members and AMPs, exhibiting remarkable downregulation in the MnUCHL3-silenced group. The above experimental conclusions revealed that UCHL3 gene might be involved in the innate immune response to bacterial infection by regulating the synthesis of a series of AMPs, and these results might provide new insights into UCHL3 in invertebrates.
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Affiliation(s)
- Tingyao Zhu
- College of Animal Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, China
| | - Liaoyi Xu
- College of Animal Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, China
| | - Jiacheng Peng
- College of Animal Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, China
| | - Ming Chen
- College of Animal Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, China
| | - Haisheng Xu
- College of Animal Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang Province, China; South Taihu Lake Modern Agricultural Science and Technology Extension Center of Huzhou, Zhejiang University, 768, Luwang Road, Huzhou, 313000, Zhejiang Province, China.
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Qu F, Li J, Zeng X, She Q, Li Y, Xie W, Cao S, Zhou Y, He Z, Tang J, Mao Z, Wang Y, Fang J, Xu W, Liu Z. Grass carp MAP3K4 participates in the intestinal immune response to bacterial challenge. FISH & SHELLFISH IMMUNOLOGY 2022; 120:82-91. [PMID: 34780976 DOI: 10.1016/j.fsi.2021.11.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/20/2021] [Accepted: 11/11/2021] [Indexed: 06/13/2023]
Abstract
Mitogen-activated protein kinase kinase kinase 4 (MAP3K4) is a multifunctional mediator of the conserved MAPK signaling pathway that plays essential roles in the regulation of immune responses in mammals. However, the function of teleost MAP3K4s in innate immunity, especially in the intestinal immune system, is still poorly understood. In the current study, we identified a fish MAP3K4 homolog (CiMAP3K4) in Ctenopharyngodon idella as well as its immune function in intestine following bacterial infection in vivo and in vitro. The open reading frame (ORF) of CiMAP3K4 encodes putative peptide of 1544 amino acids containing a predicted serine/threonine protein kinase (S_TKc) domain with high identity with other fish MAP3K4s. Phylogenetic analysis revealed the CiMAP3K4 belonged to the fish cluster and showed the closest relationship to Pimephales promelas. Quantitative real-time PCR (qRT-PCR) analysis revealed that CiMAP3K4 transcripts were widely distributed in all tested tissues, especially with high expression in the muscle and intestine of healthy grass carp. In vitro, CiMAP3K4 gene expression was upregulated by bacterial PAMPs (lipolysaccharide (LPS), peptidoglycan (PGN), L-Ala-γ-D-Glu-meso-diaminopimelic acid (Tri-DAP) and muramyl dipeptide (MDP)) and pathogens (Aeromonas hydrophila and Aeromonas veronii) in primary intestinal cells. In vivo, the mRNA expression levels of CiMAP3K4 in the intestine were significantly induced by bacterial MDP challenge in a time-dependent manner; however, this effect could be inhibited by the bioactive dipeptides β-alanyl-l-histidine (carnosine) and alanyl-glutamine (Ala-Gln). Moreover, CiMAP3K4 was located primarily in the cytoplasm, and its overexpression increased the transcriptional activity of AP-1 in HEK293T cells. Collectively, these results suggested that CiMAP3K4 might play an important role in the intestinal immune response to bacterial infections, which paves the way for a better understanding of the intestinal immune system of grass carp.
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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 410022, China
| | - Jialing Li
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Xuan Zeng
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Qing She
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Yurong Li
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Wenjie Xie
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Shenping Cao
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Yonghua Zhou
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Zhimin He
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Jianzhou Tang
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Zhuangwen Mao
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Yuping Wang
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Jiamei Fang
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Wenqian Xu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Zhen Liu
- Hunan Provincial Key Laboratory of Nutrition and Quality Control of Aquatic Animals, Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China.
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Yang L, Wang ZA, Zuo H, Geng R, Guo Z, Niu S, Weng S, He J, Xu X. The LARK protein is involved in antiviral and antibacterial responses in shrimp by regulating humoral immunity. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 114:103826. [PMID: 32784011 DOI: 10.1016/j.dci.2020.103826] [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: 06/19/2020] [Revised: 08/04/2020] [Accepted: 08/06/2020] [Indexed: 06/11/2023]
Abstract
The LARK proteins containing a C2HC-type zinc finger motif and two RNA recognition motifs are conserved across vertebrates and invertebrates. Previous studies have suggested that invertebrate LARKs and their mammalian counterparts, the RBM4 proteins, regulate gene expression by affecting RNA stability and post-transcriptional processing, participating in multiple life processes. In the current study, the LARK gene from Pacific white shrimp Litopenaeus vannamei was identified and functionally explored in the context of immunity. The LARK protein was mainly present in the nucleus of its expression vector-transfected S2 cells, and the LARK mRNA was detectable in all the tested shrimp tissues. Expression of LARK in gill was up-regulated by immune stimulation with various pathogens. In vivo experiments demonstrated that LARK played positive roles in both antiviral and antibacterial responses and silencing of LARK could make shrimp more susceptible to infection with Vibrio parahaemolyticus and white spot syndrome virus (WSSV). Although silencing of LARK did not affect the phagocytic activity of hemocytes, it regulated expression of many components of the NF-κB and JAK-STAT pathways and a series of immune function proteins. These suggested that LARK could be mainly involved in regulation of humoral immunity. The current study could help reveal the roles of LARK/RBM4 in immunity and further explore the regulatory mechanisms of shrimp immunity.
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Affiliation(s)
- Linwei Yang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, PR China
| | - Zi-Ang Wang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, PR China
| | - Hongliang Zuo
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, PR China
| | - Ran Geng
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, PR China
| | - Zhixun Guo
- South China Sea Fisheries Research Institute (CAFS), Guangzhou, PR China
| | - Shengwen Niu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, PR China
| | - Shaoping Weng
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, PR China
| | - Jianguo He
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, PR China; Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, PR China
| | - Xiaopeng Xu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, PR China; Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, PR China.
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10
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Identification of two genes potentially related to myogenesis and muscle growth in Fenneropenaeus chinensis: Activin receptor II and Follistatin-like protein. Gene 2020; 770:145346. [PMID: 33333225 DOI: 10.1016/j.gene.2020.145346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 11/09/2020] [Accepted: 12/01/2020] [Indexed: 02/06/2023]
Abstract
Activin receptor (ActR) and follistatin-like (FSTL) genes, which are involved in the Myostatin (Mstn) related TGF-β/Smad signaling pathway, play important roles in regulating the muscle generation, development and growth of muscle in vertebrate. Our previous studies have confirmed that Mstn negatively regulates muscle development and growth in Fenneropenaeus chinensis as that in vertebrate. However, the roles of ActR and FSTL in muscle development and growth in invertebrate remains unclear. In the present study, type II ActR(FcActRII) and FSTL (FcFSTL) genes from F. chinensis were cloned and characterized, and their functions on muscle development and growth were investigated. The full-length cDNAs of FcActRII and FcFSTL were 2366 bp that encoded 572 amino acids and 2474 bp that encoded 717 amino acids, respectively. Sequence analysis revealed that the overall protein sequences of the two genes shared 97% and 96% identities with Penaeus vannamei and 50%-59% and 35%-36% identities with vertebrates, respectively. In the early development stages, muscles firstly appeared in nauplius stage and developed gradually until post larval, and the mRNA expressions of FcActRII increased from gastrula to zoea stage and then decreased from zoea stage to post larval stage while that of FcFSTL was lowest in gastrula stage and increased rapidly in nauplius stage and then expressed stably from nauplius stage to post-larval stage. In the adult shrimp, the two genes were widely distributed in the examined tissues. The FcActRII expression in muscle of L group was significantly lower than that of S group, but the FcFSTL expression showed an opposite result. After down-regulating the expression of FcMstn by RNAi, FcActRII expression was significantly down-regulated while that of FcFSTL was up-regulated. The present study suggested that FcActRII and FcFSTL, regulated by FcMstn, might be involved in myogenesis and muscle growth.
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11
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Expression Levels of the Immune-Related p38 Mitogen-Activated Protein Kinase Transcript in Response to Environmental Pollutants on Macrophthalmus japonicus Crab. Genes (Basel) 2020; 11:genes11090958. [PMID: 32825142 PMCID: PMC7565651 DOI: 10.3390/genes11090958] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/13/2020] [Accepted: 08/17/2020] [Indexed: 12/18/2022] Open
Abstract
Environmental pollution in the aquatic environment poses a threat to the immune system of benthic organisms. The Macrophthalmus japonicus crab, which inhabits tidal flat sediments, is a marine invertebrate that provides nutrient and organic matter cycling as a means of purification. Here, we characterized the M. japonicus p38 mitogen-activated protein kinase (MAPK) gene, which plays key roles in the regulation of cellular immune and apoptosis responses. M. japonicusp38 MAPK displayed the characteristics of the conserved MAPK family with Thr-Gly-Tyr (TGY) motif and substrate-binding site Ala-Thr-Arg-Trp (ATRW). The amino acid sequence of the M. japonicus p38 MAPK showed a close phylogenetic relationship to Eriocheir sinensis MAPK14 and Scylla paramamosainp38 MAPK. The phylogenetic tree displayed two origins of p38 MAPK: crustacean and insect. The tissue distribution patterns showed the highest expression in the gills and hepatopancreas of M. japonicus crab. In addition, p38 MAPK expression in M. japonicus gills and hepatopancreas was evaluated after exposure to environmental pollutants such as perfluorooctane sulfonate (PFOS), irgarol, di(2-ethylhexyl) phthalate (DEHP), and bisphenol A (BPA). In the gills, p38 MAPK expression significantly increased after exposure to all concentrations of the chemicals on day 7. However, on day 1, there were increased p38 MAPK responses observed after PFOS and irgarol exposure, whereas decreased p38 MAPK responses were observed after DEHP and BPA exposure. The upregulation of p38 MAPK gene also significantly led to M. japonicus hepatopancreas being undertested in all environmental pollutants. The findings in this study supported that anti-stress responses against exposure to environmental pollutants were reflected in changes in expression levels in M. japonicusp38 MAPK signaling regulation as a cellular defense mechanism.
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12
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Zhang L, Shi R, Ouyang H, Li Y. Cloning and characterization of chst11 from Procambarus clarkii involved in the host immune response of white spot syndrome virus and Aeromonas hydrophila. FISH & SHELLFISH IMMUNOLOGY 2020; 102:82-91. [PMID: 32302771 DOI: 10.1016/j.fsi.2020.04.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 04/03/2020] [Accepted: 04/08/2020] [Indexed: 06/11/2023]
Abstract
Carbohydrate sulfotransferases 11 (chst11) is one of the enzymes that synthesize chondroitin sulfate (CS), which has extensive immune functions in vitro and plays a critical role in mediating the infection of host by pathogenic microorganisms. However, whether it has immune functions in crayfish is still poorly understood. In our previous study of transcriptome, chst11 was differentially expressed in susceptible individuals and resistant individuals of Procambarus clarkii after white spot syndrome virus (WSSV) injection. Thus, in this study, the sequence of chst11 was obtained from P. clarkii for the first time and analyzed, and the expression pattern of chst11 was investigated. Besides, the purified recombinant protein of chst11 effect in protection in WSSV infection was explored. The full length of chst11 was 1536 bp with an 831-bp open reading frame (ORF), which encoding 276 amino acids residues with a calculated molecular mass of 33.1 kDa. The chst11 contains a Sulfotransfer_2 domain, one N-glycosylation site and three O-glycosylation sites. Phylogenetic analysis results showed that chst11 had the highest similarity to Penaeus vannamei (79.93%). The expression pattern of chst11 in different tissues indicated that chst11 was expressed highest in gut, gill and hypodermis, lowest in testicular duct, periesophageal nerve and hemocytes. The chst11 had different expression patterns in different tissues when the crayfish was challenged by WSSV, Aeromonas hydrophila and CpG ODN. Recombinant chst11 protein significantly reduced the amount of WSSV copy number in hepatopancreas at 6 h and 12 h post injection compared to the control group injected with bovine serum albumin (BSA). It was found that chst11 protein enhanced the expression of peroxinectin, proPO in hepatopancreas and midgut and the C-type lectin (ctl) in hemocytes and hepatopancreas. Intramuscularly injection of juvenile crayfish with chst11 protein decreased 60% mortality compared to the control group with BSA. This study is the first report on the antiviral function of chst11 in the immune system of crustacean.
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Affiliation(s)
- Long Zhang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Ruixue Shi
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Haofeng Ouyang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Yanhe Li
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, PR China.
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13
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Shui Y, Xie J, Zhou Y, Li J, Gan J. Molecular characterization of p38 MAPK and tissue-specific expression under cadmium stress in red swamp crayfish (Procambarus clarkii). THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 720:137325. [PMID: 32143056 DOI: 10.1016/j.scitotenv.2020.137325] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 02/13/2020] [Accepted: 02/13/2020] [Indexed: 05/06/2023]
Abstract
Keeping harmful pollutants out of some crucial tissues as much as possible is a key trait for the organism to survive in adverse conditions, such as in heavy-metal contaminated aquatic environments. In the current study, it was hypothesized that the p38 Mitogen-activated Protein Kinase (MAPK) controls the distribution of cadmium (Cd) in red swamp crayfish (Procambarus clarkii) by regulating the accumulation of Cd in different tissues under Cd-stressed conditions. To test this hypothesis, this study analyzed the p38 MAPK gene and compared the differential expression levels in the heart, antennal gland, gill, hepatopancreas, and muscles. Differences in expression levels of p38 MAPK gene between different tissues were conducted under controlled Cd exposure. This study found that the expression of p38 MAPK is tissue-specific in all tested samples under non-stressed condition. Under Cd-stressed condition and with the prolongation of Cd exposure time, the content of Cd in all examined tissues of P. clarkii has substantially increased compared to the control, although the Cd contents in the heart, antennal gland, and muscle remained relatively lower than those observed in the hepatopancreas. Consequently, the levels of p38 MAPK in the heart, antennal gland, and muscle were higher than the level in the hepatopancreas. These results indicate that p38 MAPK regulates the distribution and accumulation of Cd in different tissues of P. clarkii under Cd-stressed condition. Furthermore, the results suggested that the higher expression of p38 MAPK played a crucial role in keeping Cd out of the tissues in the Cd-rich aquatic environment to maintain the normal physiological function of the red swamp crayfish, a process necessary for survival and growth.
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Affiliation(s)
- Yahui Shui
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, Hubei 430223, China; School of Environmental Engineering, Wuhan Textile University, Wuhan, Hubei 430073, PR China
| | - Junpu Xie
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, Hubei 430223, China; School of Environmental Engineering, Wuhan Textile University, Wuhan, Hubei 430073, PR China
| | - Yong Zhou
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, Hubei 430223, China
| | - Jinping Li
- School of Environmental Engineering, Wuhan Textile University, Wuhan, Hubei 430073, PR China.
| | - Jinhua Gan
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, Hubei 430223, China.
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14
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Feng Q, Huang Y, Yao D, Zhu C, Li S, Ma H, Aweya JJ, Zhang Y. Litopenaeus vannamei CK2 is involved in shrimp innate immunity by modulating hemocytes apoptosis. FISH & SHELLFISH IMMUNOLOGY 2019; 94:643-653. [PMID: 31563555 DOI: 10.1016/j.fsi.2019.09.060] [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: 06/07/2019] [Revised: 09/23/2019] [Accepted: 09/25/2019] [Indexed: 06/10/2023]
Abstract
Protein kinase CK2 (CK2) is a ubiquitous serine/threonine kinase with multiple cellular functions in vertebrates including apoptosis, differentiation, proliferation, survival, tumorigenesis, signal transduction, immune regulation and inflammation. In the current study, the catalytic and regulatory subunit homologs of Litopenaeus vannamei protein kinase CK2 (LvCK2α and LvCK2β) were cloned and characterized. LvCK2α has a full-length cDNA sequence of 1764 bp with a 1053 bp open reading frame (ORF) encoding a putative protein of 351 amino acids, which contains a typical serine/threonine kinase domain. On the other hand, LvCK2β has a 1394 bp full-length cDNA with an ORF of 663 bp encoding a protein with 221 amino acids, which contains a Casein kinase II regulatory subunit domain. Sequence and phylogenetic analysis revealed that LvCK2 was evolutionary related with the CK2 of invertebrates. Quantitative reverse transcription PCR (RT-qPCR) analysis showed that LvCK2α and LvCK2β transcripts were widely expressed in all shrimp tissues tested, and were both induced in hemocytes and hepatopancreas upon challenge with Vibrio parahaemolyticus, Streptoccocus iniae, lipopolysaccharide (LPS), and white spot syndrome virus (WSSV), suggesting their involvement in shrimp immune response. Moreover, RNA interference (RNAi) of LvCK2α resulted in increased hemocytes apoptosis, shown by high caspase 3/7 activity, increased number of apoptotic cells, coupled with an elevation in transcript levels of pro-apoptotic LvCaspase3 and LvCytochrome C, and a reduction in mRNA levels of pro-survival LvBcl2, LvIAP1, and LvIAP2. In addition, LvCK2α knockdown followed by V. parahaemolyticus challenge resulted in higher cumulative mortality of shrimp. Taken together, our current findings suggest that LvCK2 modulates shrimp hemocytes apoptosis as part of the innate immune response to pathogens.
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Affiliation(s)
- Qian Feng
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Yueqian Huang
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China
| | - Defu Yao
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Chunhua Zhu
- College of Fisheries, Guangdong Ocean University, Zhanjiang, 524025, China
| | - Shengkang Li
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Hongyu Ma
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Jude Juventus Aweya
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China.
| | - Yueling Zhang
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China; STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China.
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15
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Muhammad A, Toufeeq S, Yu HZ, Wang J, Zhang SZ, Li B, Li Z, Yang LA, Hu P, Ma Y, Xu JP. Molecular Characterization of Two Mitogen-Activated Protein Kinases: p38 MAP Kinase and Ribosomal S6 Kinase From Bombyx mori (Lepidoptera: Bombycidae), and Insight Into Their Roles in Response to BmNPV Infection. JOURNAL OF INSECT SCIENCE (ONLINE) 2019; 19:5306023. [PMID: 30715437 PMCID: PMC6359879 DOI: 10.1093/jisesa/iey134] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 12/17/2018] [Indexed: 05/02/2023]
Abstract
Proteins p38 map kinase and ribosomal S6 kinase (S6K) as members of mitogen-activated protein kinases (MAPKs) play important roles against pathogens. In this study, Bmp38 and BmS6K were identified as differentially expressed proteins from iTRAQ database. Bmp38 and BmS6K were expressed, and recombinant proteins were purified. The bioinformatics analysis showed that both proteins have serine/threonine-protein kinases, catalytic domain (S_TKc) with 360 and 753 amino acids, respectively. The real-time quantitative polymerase chain reaction (RT-qPCR) results suggest that Bmp38 and BmS6K had high expression in the midgut and hemolymph. The comparative expression level of Bmp38 and BmS6K in BC9 was upregulated than in P50 in the midgut after Bombyx mori nucleopolyhedrovirus (BmNPV) infection. Western bolt results showed a positive correlation between RT-qPCR and iTRAQ data for Bmp38, but BmS6K data showed partial correlation with iTRAQ. Injection of anti-Bmp38 and anti-BmS6K serum suggested that Bmp38 may be involved against BmNPV infection, whereas BmS6K may require phosphorylation modification to inhibit BmNPV infection. Taken together, our results suggest that Bmp38 and BmS6k might play an important role in innate immunity of silkworm against BmNPV.
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Affiliation(s)
- Azharuddin Muhammad
- School of Life Sciences, Anhui Agricultural University, Hefei, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei, China
| | - Shahzad Toufeeq
- School of Life Sciences, Anhui Agricultural University, Hefei, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei, China
| | - Hai-Zhong Yu
- National Navel Orange Engineering and Technology Research Center, Gannan Normal University, Ganzhou, China
| | - Jie Wang
- School of Life Sciences, Anhui Agricultural University, Hefei, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei, China
| | - Shang-Zhi Zhang
- School of Life Sciences, Anhui Agricultural University, Hefei, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei, China
| | - Bing Li
- School of Life Sciences, Anhui Agricultural University, Hefei, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei, China
| | - Zhen Li
- School of Life Sciences, Anhui Agricultural University, Hefei, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei, China
| | - Li-Ang Yang
- School of Life Sciences, Anhui Agricultural University, Hefei, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei, China
| | - Pei Hu
- School of Life Sciences, Anhui Agricultural University, Hefei, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei, China
| | - Yan Ma
- School of Life Sciences, Anhui Agricultural University, Hefei, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei, China
| | - Jia-Ping Xu
- School of Life Sciences, Anhui Agricultural University, Hefei, China
- Anhui International Joint Research and Developmental Center of Sericulture Resources Utilization, Hefei, China
- Corresponding author, e-mail:
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16
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Chen YH, He JG. Effects of environmental stress on shrimp innate immunity and white spot syndrome virus infection. FISH & SHELLFISH IMMUNOLOGY 2019; 84:744-755. [PMID: 30393174 DOI: 10.1016/j.fsi.2018.10.069] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 10/12/2018] [Accepted: 10/26/2018] [Indexed: 06/08/2023]
Abstract
The shrimp aquaculture industry is plagued by disease. Due to the lack of deep understanding of the relationship between innate immune mechanism and environmental adaptation mechanism, it is difficult to prevent and control the diseases of shrimp. The shrimp innate immune system has received much recent attention, and the functions of the humoral immune response and the cellular immune response have been preliminarily characterized. The role of environmental stress in shrimp disease has also been investigated recently, attempting to clarify the interactions among the innate immune response, the environmental stress response, and disease. Both the innate immune response and the environmental stress response have a complex relationship with shrimp diseases. Although these systems are important safeguards, allowing shrimp to adapt to adverse environments and resist infection, some pathogens, such as white spot syndrome virus, hijack these host systems. As shrimp lack an adaptive immune system, immunization therapy cannot be used to prevent and control shrimp disease. However, shrimp diseases can be controlled using ecological techniques. These techniques, which are based on the innate immune response and the environmental stress response, significantly reduce the impact of shrimp diseases. The object of this review is to summarize the recent research on shrimp environmental adaptation mechanisms, innate immune response mechanisms, and the relationship between these systems. We also suggest some directions for future research.
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Affiliation(s)
- Yi-Hong Chen
- Key Laboratory of Marine Resources and Coastal Engineering in Guangdong Province/School of Marine Sciences, Sun Yat-sen University, 135 Xingang Road West, Guangzhou, 510275, PR China; Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou 510631, PR China
| | - Jian-Guo He
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, 135 Xingang Road West, Guangzhou, 510275, PR China; Key Laboratory of Marine Resources and Coastal Engineering in Guangdong Province/School of Marine Sciences, Sun Yat-sen University, 135 Xingang Road West, Guangzhou, 510275, PR China.
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17
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Zhan Y, Wang Y, Li K, Song J, Chang Y. A novel p38 MAPK gene in the sea cucumber Apostichopus japonicus (Ajp38) is associated with the immune response to pathogenic challenge. FISH & SHELLFISH IMMUNOLOGY 2018; 81:250-259. [PMID: 30026174 DOI: 10.1016/j.fsi.2018.07.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 05/11/2018] [Accepted: 07/02/2018] [Indexed: 06/08/2023]
Abstract
The p38 mitogen-activated protein kinase (MAPK), an important component of the MAPK signal cascade, is activated by extracellular stimuli, such as environmental stress and pathogenic infection. To clarify the function of p38 MAPKs in echinoderms, we used transcriptome database mining and rapid amplification of cDNA ends (RACE) to identify a novel p38 MAPK gene in the sea cucumber Apostichopus japonicus (here designated Ajp38). The full-length cDNA of Ajp38 was 2231 bp, including an open reading frame encoding 356 amino acid residues. Our sequence analysis indicated that the predicted Ajp38 protein contained the dual phosphorylation site Thr-Gly-Tyr (TGY) and was similar to the p38 homolog in sea urchins. Quantitative real-time PCR analysis showed that Ajp38 was ubiquitously expressed in all examined tissues of healthy adult A. japonicus, with the highest level of expression identified in the coelomocytes. Ajp38 mRNA expression was significantly upregulated in the coelomocytes 4, 12, and 72 h post in vivo infection with Vibrio splendidus. Our results provide more information about the characteristics and immune functions of the p38 homolog in sea cucumbers.
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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
| | - Yi Wang
- 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
| | - Kaiquan 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
| | - Jian Song
- 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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18
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Expression profiles of the p38 MAPK signaling pathway from Chinese shrimp Fenneropenaeus chinensis in response to viral and bacterial infections. Gene 2018; 642:381-388. [DOI: 10.1016/j.gene.2017.11.050] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 10/22/2017] [Accepted: 11/15/2017] [Indexed: 11/23/2022]
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19
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Wang S, Yin B, Li H, Xiao B, Lǚ K, Feng C, He J, Li C. MKK4 from Litopenaeus vannamei is a regulator of p38 MAPK kinase and involved in anti-bacterial response. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2018; 78:61-70. [PMID: 28939483 DOI: 10.1016/j.dci.2017.09.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 09/15/2017] [Accepted: 09/17/2017] [Indexed: 06/07/2023]
Abstract
LvMKK4, a homologue of the mammalian mitogen-activated protein kinase kinase 4 (MKK4), was isolated and identified from Litopenaeus vannamei in the present study. The full-length cDNA of LvMKK4 is 1947 bp long, with an open reading frame (ORF) of 1185 bp encoding a putative protein of 388 amino acids. LvMKK4 contains several characteristic domains such as D domain, SIAKT motif and kinase domain, all of which are conserved in MAP kinase kinase family. Like mammalian MKK4 but not Drosophila MKK4, LvMKK4 could bind to, phosphorylate and activate p38 MAPK, which provided some insights into the signal transduction mechanism of MKK4-p38 cascade in invertebrates. Our real-time PCR data indicated that LvMKK4 was ubiquitously expressed in all tested tissues and extraordinarily abundant in muscle. Dual luciferase reporter assays in Drosophila S2 cells revealed that LvMKK4 activated the transcription of antimicrobial peptide genes (AMPs), including Drosophila Attacin A, Drosomycin, and shrimp Penaeidins. Additionally, LvMKK4 was up-regulated in both intestine and hepatopancreas by a variety of inflammatory stimuli including LPS, Vibrio parahaemolyticus, Staphhylococcu saureus, Poly (I: C) and white spot syndrome virus. Furthermore, RNAi-mediated knockdown of LvMKK4 enhanced the sensitivity of L. vannamei to V. parahaemolyticus infection. These findings suggested that LvMKK4 played an important role in anti-bacterial response and could be a potential target for inflammation treatment.
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Affiliation(s)
- Sheng Wang
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Guangdong Province Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, Sun Yat-sen University, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, PR China
| | - Bin Yin
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Guangdong Province Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, Sun Yat-sen University, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, PR China
| | - Haoyang Li
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Guangdong Province Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, Sun Yat-sen University, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, PR China
| | - Bang Xiao
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Guangdong Province Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, Sun Yat-sen University, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, PR China
| | - Kai Lǚ
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Guangdong Province Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, Sun Yat-sen University, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, PR China
| | - Chiguang Feng
- School of Medicine, University of Maryland, Maryland, USA
| | - Jianguo He
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Guangdong Province Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, Sun Yat-sen University, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, PR China; School of Marine Sciences, Sun Yat-sen University, Guangzhou, PR China; South China Sea Resource Exploitation and Protection Collaborative Innovation Center (SCS-REPIC), PR China.
| | - Chaozheng Li
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Guangdong Province Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals, Sun Yat-sen University, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, PR China; School of Marine Sciences, Sun Yat-sen University, Guangzhou, PR China; South China Sea Resource Exploitation and Protection Collaborative Innovation Center (SCS-REPIC), PR China.
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20
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Sun HY, Huang MZ, Li YW, Huang JH, Mo ZQ, Chen RA, Dan XM. Two novel p38 MAPKs identified from Epinephelus coioides and their expression pattern in response to Cryptocaryon irritans infection. FISH & SHELLFISH IMMUNOLOGY 2017; 67:459-466. [PMID: 28602680 DOI: 10.1016/j.fsi.2017.06.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 05/22/2017] [Accepted: 06/03/2017] [Indexed: 06/07/2023]
Abstract
P38 mitogen-activated protein kinases (MAPKs) are one of the most important central regulatory proteins response to extra environmental stresses. In this study, two novel p38 MAPKs, Ec-P38γ and Ec-P38δ, were identified from Epinephelus coioides, an economically important cultured fish in China and Southeast Asian counties. Both of Ec-p38γ and Ec-p38δ sequences contain a serine/threonine protein kinase (S_TKc) domain and a highly conserved Thr-Gly-Tyr (TGY) motif. Analysis of phylogenetic relationships illustrated that p38 amino acid sequences were conserved between different species indicating that the functions may be similar. The four subtypes of p38 (α, β, γ, and δ) mRNA can be detected in all thirteen tissues examined, but the expression level is different in these tissues. The expression patterns of the four Ec-p38 subtypes in E. coioides were also detected response to Cryptocaryon irritans infection, one of the most important protozoan pathogens of marine fish. The expression of four p38 subtypes was up-regulated in the tissues examined, with the highest expressions of Ec-p38α (5.2 times) and Ec-p38δ (4.2 times) occurring in the skin, while Ec-p38β (24.8 times) and γ (16.6 times) occurred in the spleen. There was no significantly correlation between the expression of Ec-p38γ/Ec-p38δ and the expression of nuclear factor kappaB (NF-kB). The results indicated the sequences and the characters of Ec-p38γ and Ec-p38δ were conserved, the p38 subtypes showed tissue-specific expression patterns in healthy grouper, and their expressions were significantly up-regulated post C. irritans infection, suggesting these p38 MAPKs may play important roles in these tissues during pathogen-caused inflammation.
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Affiliation(s)
- Hong-Yan Sun
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, Guangdong Province, PR China; Guangdong Provincial Key Laboratory of Marine Biotechnology, 515063, Guangdong Province, PR China
| | - Mian-Zhi Huang
- Marine and Fisheries of Jieyang, 522000, Guangdong Province, PR China
| | - Yan-Wei Li
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, Guangdong Province, PR China
| | - Jia-Hao Huang
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, Guangdong Province, PR China
| | - Ze-Quan Mo
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, Guangdong Province, PR China
| | - Rui-Ai Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong Province, PR China.
| | - Xue-Ming Dan
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, Guangdong Province, PR China.
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21
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Yu Z, Geng Y, Huang A, Wang K, Huang X, Chen D, Ou Y, Wang J. Molecular characterization of a p38 mitogen-activated protein kinase gene from Scylla paramamosain and its expression profiles during pathogenic challenge. J Invertebr Pathol 2017; 144:32-36. [PMID: 28065702 DOI: 10.1016/j.jip.2017.01.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 12/25/2016] [Accepted: 01/03/2017] [Indexed: 10/20/2022]
Abstract
A novel p38 MAPK gene from S. paramamosain was cloned and characterized by rapid amplification of cDNA ends (RACE) technology. S. paramamosain p38 (Sp-p38) MAPK gene consists of an open reading frame of 1095bp encoding a 365-amino-acid protein, which showed close phylogenetic relationship to Litopenaeus vannamei p38 MAPK. The tissue distribution patterns showed that Sp-p38 MAPK was widely expressed in all examined tissues, with the highest expression in hemocytes and intestines. The expression levels of Sp-p38 MAPK in hemocytes was up-regulated post-stimulation, which reached the peak at 6h and 12h after bacteria (S. aureus and V. harveyi) and WSSV infection, respectively. In conclusion, our data contributed to define the biological characteristics of Sp-p38 MAPK and further demonstrated the critical role of Sp-p38 MAPK in vivo during the viral and bacterial infection.
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Affiliation(s)
- Zehui Yu
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Sichuan 625014, PR China
| | - Yi Geng
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Sichuan 625014, PR China.
| | - Anming Huang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Sichuan 625014, PR China
| | - Kaiyu Wang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Sichuan 625014, PR China
| | - Xiaoli Huang
- Department of Aquaculture, Sichuan Agricultural University, Wenjiang, Sichuan 625014, PR China
| | - Defang Chen
- Department of Aquaculture, Sichuan Agricultural University, Wenjiang, Sichuan 625014, PR China
| | - Yangping Ou
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Sichuan 625014, PR China
| | - Jun Wang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Sichuan 625014, PR China
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22
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Liu Y, Sun Y, Wang Q, Hou F, Liu X. Identification and functional characterizations of serpin8, a potential prophenoloxidase-activating protease inhibitor in Pacific white shrimp, Litopenaeus vannamei. FISH & SHELLFISH IMMUNOLOGY 2017; 60:492-501. [PMID: 27836723 DOI: 10.1016/j.fsi.2016.11.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 11/03/2016] [Accepted: 11/07/2016] [Indexed: 06/06/2023]
Abstract
Serpins have been characterized from varieties of organisms by their inhibitory roles on serine or cysteine proteases. However, research for the functional study of serpins in crustacean is relatively small. To fully clarify the immune characterizations of serpin, a novel serpin (named Lvserpin8) encoding 414 amino acids with a 19-amino acid signal peptide and a serpin domain was identified from the Pacific white shrimp Litopenaeus vannamei. Sequence analysis indicated that the genomic Lvserpin8 gene contains 5 exons and 4 introns. The P1 residues of the predicted scissile bond in the reactive center loop (RCL) region represented for Lysine (Lys), which is in accordance with Pmserpin8, Dmserpin27A, Ofserpin3, Bmserpin3 and Msserpin3. Quantitative results showed that high mRNA expression of Lvserpin8 was detected in hepatopancreas and testis. Notably, a significant increase of Lvserpin8 was appeared post injection of Vibrio anguillarum, and Micrococcus lysodeikticus. Moreover, Lvserpin8 was knocked down in vivo by double-stranded RNA (dsRNA) mediated RNA interference (RNAi). Suppression of Lvserpin8 led to a significant increase in the transcripts of LvPPAE2 (Prophenoloxidase-activating Enzyme 2) and cumulative mortality. What's more, recombinant Lvserpin8 protein (rLvserpin8) displayed inhibition roles on trypsin activity, and prophenoloxidase activation. Taken together, the results implied that Lvserpin8 may be involved in shrimp innate immunity via the inhibition of prophenoloxidase-activating proteases.
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Affiliation(s)
- Yongjie Liu
- College of Animal Science and Technology, Northwest A&F University, Shaanxi, Yangling 712100, China
| | - Yuhang Sun
- College of Animal Science and Technology, Northwest A&F University, Shaanxi, Yangling 712100, China
| | - Qiai Wang
- College of Animal Science and Technology, Northwest A&F University, Shaanxi, Yangling 712100, China
| | - Fujun Hou
- College of Animal Science and Technology, Northwest A&F University, Shaanxi, Yangling 712100, China
| | - Xiaolin Liu
- College of Animal Science and Technology, Northwest A&F University, Shaanxi, Yangling 712100, China.
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23
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Qu F, Xiang Z, Zhang Y, Li J, Xiao S, Zhang Y, Mao F, Ma H, Yu Z. A novel p38 MAPK indentified from Crassostrea hongkongensis and its involvement in host response to immune challenges. Mol Immunol 2016; 79:113-124. [PMID: 27768933 DOI: 10.1016/j.molimm.2016.10.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 10/08/2016] [Accepted: 10/11/2016] [Indexed: 01/06/2023]
Abstract
p38 mitogen-activated protein kinases (MAPKs) are conserved serine/threonine-specific kinases that are activated by various extracellular stimuli and play crucial regulatory roles in immunity, development and homeostasis. However, the function of p38s in mollusks, the second most diverse group of animals, is still poorly understood. In this study, a novel molluscan p38 (designated Chp38) was cloned and characterized from the Hong Kong oyster Crassostrea hongkongensis. Its full-length cDNA encoded a putative protein of 353 amino acids with a calculated molecular weight of approximately 40.3kDa. Similar to other reported p38 family proteins, the deduced Chp38 sequence contained a conserved dual phosphorylation TGY motif and a substrate binding site of ATRW. Phylogenetic analysis revealed that Chp38 was closest to its homolog from the Pacific oyster and belonged to the mollusk cluster. Quantitative real-time PCR analysis showed that Chp38 was constitutively expressed in all examined oyster tissues and developmental stages and that its expression in hemocytes was significantly up-regulated after pathogen (Vibrio alginolyticus and Staphylococcus haemolyticus) and PAMP (lipopolysaccharide and peptidoglycan) infections. Moreover, overexpression analysis revealed that Chp38 was localized in both the cytoplasm and nucleus of HEK293T cells and that it could significantly enhance AP-1 reporter gene activation in a dose-dependent manner. Altogether, these results provide the first experimental evidence of a functional p38 in oysters and suggest its involvement in the innate immunity of C. hongkongensis.
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Affiliation(s)
- Fufa Qu
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301,China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China; Department of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Zhiming Xiang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301,China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China.
| | - Yang Zhang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301,China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China
| | - Jun Li
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301,China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China
| | - Shu Xiao
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301,China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China
| | - Yuehuan Zhang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301,China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China
| | - Fan Mao
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301,China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China
| | - Haitao Ma
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301,China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China
| | - Ziniu Yu
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301,China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510275, China.
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24
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Sun Y, Zhang L, Zhang M, Li R, Li Y, Hu X, Wang S, Bao Z. Characterization of three mitogen-activated protein kinases (MAPK) genes reveals involvement of ERK and JNK, not p38 in defense against bacterial infection in Yesso scallop Patinopecten yessoensis. FISH & SHELLFISH IMMUNOLOGY 2016; 54:507-515. [PMID: 27155450 DOI: 10.1016/j.fsi.2016.04.139] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 04/28/2016] [Accepted: 04/30/2016] [Indexed: 06/05/2023]
Abstract
Mitogen-activated protein kinases (MAPKs) are protein Ser/Thr kinases that play a vital role in innate immune responses by converting extracellular stimuli into a wide range of cellular responses. Although MAPKs have been extensively studied in various vertebrates and invertebrates, our current understanding of MAPK signaling cascade in scallop is in its infancy. In this study, three MAPK genes (PyERK, PyJNK, and Pyp38) were identified from Yesso scallop Patinopecten yessoensis. The open reading frame of PyERK, PyJNK, and Pyp38 was 1104, 1227, and 1104 bp, encoding 367, 408, and 367 amino acids, respectively. Conservation in some splicing sites was revealed across the three PyMAPKs, suggesting the common descent of MAPKs genes. The expression profiles of PyMAPKs over the course of ten different developmental stages showed that they had different expression patterns. In adult scallops, PyMAPKs were primarily expressed in muscles, hemocytes, gill, and mantle. To gain insights into their role in innate immunity, we investigated their expression profiles after infection with Gram-positive bacteria (Micrococcus luteus) and Gram-negative bacteria (Vibrio anguillarum). Significant difference in gene expression was only found in PyERK and PyJNK, but not Pyp38, suggesting Pyp38 may not participate in immune response to bacterial infection. Besides, PyERK and PyJNK exhibited more drastic change against the invasion of V. anguillarum than M. luteus, suggesting they could be more sensitive to Gram-negative bacteria than Gram-positive bacteria. This study provides valuable resource for elucidating the role of MAPK signal pathway in bivalve innate immune response.
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Affiliation(s)
- Yan Sun
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Lingling Zhang
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.
| | - Meiwei Zhang
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Ruojiao Li
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Yangping Li
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xiaoli Hu
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Shi Wang
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Zhenmin Bao
- Ministry of Education Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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25
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Wang S, Li H, Lǚ K, Qian Z, Weng S, He J, Li C. Identification and characterization of transforming growth factor β-activated kinase 1 from Litopenaeus vannamei involved in anti-bacterial host defense. FISH & SHELLFISH IMMUNOLOGY 2016; 52:278-288. [PMID: 27033469 DOI: 10.1016/j.fsi.2016.03.149] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 03/22/2016] [Indexed: 06/05/2023]
Abstract
LvTAK1, a member of transforming growth factor β-activated kinase 1 (TAK1) families, has been identified from Litopenaeus vannamei in this study. The full length of LvTAK1 is 2670 bp, including a 2277 bp open reading frame (ORF) that encoded a putative protein of 758 amino acids with a calculated molecular weight of ∼83.4 kDa LvTAK1 expression was most abundant in muscles and was up-regulated in gills after LPS, Vibrio parahaemolyticus, Staphylococcus aureus, Poly (I:C) and WSSV challenge. Both in vivo and in vitro experiments indicated that LvTAK1 could activate the expression of several antimicrobial peptide genes (AMPs). In addition, the dsRNA-mediated knockdown of LvTAK1 enhanced the susceptibility of shrimps to Vibrio parahaemolyticus, a kind of Gram-negative bacteria. These results suggested LvTAK1 played important roles in anti-bacterial infection. CoIP and subcellular localization assay demonstrated that LvTAK1 could interact with its binding protein LvTAB2, a key component of IMD pathway. Moreover, over-expression of LvTAK1 in Drosophila S2 cell could strongly induce the promoter activity of Diptericin (Dpt), a typical AMP which is used to read out of the activation of IMD pathway. These findings suggested that LvTAK1 could function as a component of IMD pathway. Interestingly, with the over-expression of LvTAK1 in S2 cell, the promoter activity of Metchnikowin (Mtk), a main target gene of Toll/Dif pathway, was up-regulated over 30 times, suggesting that LvTAK1 may also take part in signal transduction of the Toll pathway. In conclusion, we provided some evidences that the involvement of LvTAK1 in the regulation of both Toll and IMD pathways, as well as innate immune against bacterial infection in shrimp.
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Affiliation(s)
- Sheng Wang
- MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, PR China
| | - Haoyang Li
- MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, PR China
| | - Kai Lǚ
- MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, PR China
| | - Zhe Qian
- MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Shaoping Weng
- MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, PR China
| | - Jianguo He
- MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, PR China; School of Marine Sciences, Sun Yat-sen University, Guangzhou, PR China; South China Sea Resource Exploitation and Protection Collaborative Innovation Center (SCS-REPIC), PR China.
| | - Chaozheng Li
- MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, PR China; School of Marine Sciences, Sun Yat-sen University, Guangzhou, PR China; South China Sea Resource Exploitation and Protection Collaborative Innovation Center (SCS-REPIC), PR China.
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26
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Li X, Ma J, Li Y. Molecular Cloning and Expression Determination ofp38 MAPKfrom the Liver and Kidney of Silver Carp. J Biochem Mol Toxicol 2016; 30:224-31. [DOI: 10.1002/jbt.21781] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Revised: 10/30/2015] [Accepted: 12/11/2015] [Indexed: 12/28/2022]
Affiliation(s)
- Xiaoyu Li
- College of Life Science; Henan Normal University; Xinxiang Henan 453007 People's Republic of China
| | - Junguo Ma
- College of Life Science; Henan Normal University; Xinxiang Henan 453007 People's Republic of China
| | - Yuanyuan Li
- College of Life Science; Henan Normal University; Xinxiang Henan 453007 People's Republic of China
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27
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Wang S, Qian Z, Li H, Lu K, Xu X, Weng S, He J, Li C. Identification and characterization of MKK7 as an upstream activator of JNK in Litopenaeus vannamei. FISH & SHELLFISH IMMUNOLOGY 2016; 48:285-294. [PMID: 26707780 DOI: 10.1016/j.fsi.2015.12.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 12/10/2015] [Accepted: 12/12/2015] [Indexed: 06/05/2023]
Abstract
Mitogen-activated protein kinase kinase 7 (MKK7) is a key signal transduction regulator in c-Jun N-terminal kinase (JNK) signaling pathway, which is involved in a wide range of physiological and pathological processes. In this study, we described the molecular cloning of a new member of MKK7 group from Litopenaeus vannamei named as LvMKK7. The full-length cDNA of LvMKK7 was 3093 bp in length, with an open reading frame (ORF) of 1440bp encoding a putative protein of 479 amino acids. LvMKK7 contained a conserved kinase domain of 261 amino acids in which there was a characteristic S-K-A-K-T motif as a potential target site of phosphorylation by MKKK. Moreover, subcellular localization showed LvMKK7 was located in both the cytoplasm and the nucleus of Drosophila S2 cells. Real-time PCR indicated that LvMKK7 was universally expressed in all tested tissues and its expression in hepatopancreas was responsive to the challenge of LPS, Poly (I:C), Vibrio parahaemolyticus, Staphhylococcus aureus and white spot syndrome virus (WSSV). In addition, co-immunoprecipitation assay demonstrated that LvJNK was phosphorylated and activated by LvMKK7, which suggested LvMKK7 was the upper regulator of LvJNK. Furthermore, RNAi-mediated knockdown of LvMKK7 enhanced the sensitivity of shrimps to V. parahaemolyticus infection. Overall, our results suggested that LvMKK7 may play important roles in the shrimp innate immunity.
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Affiliation(s)
- Sheng Wang
- MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory for Bio Control, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Sun Yat-sen University, Guangzhou, PR China
| | - Zhe Qian
- MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory for Bio Control, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Haoyang Li
- MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory for Bio Control, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Sun Yat-sen University, Guangzhou, PR China
| | - Kai Lu
- MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory for Bio Control, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Sun Yat-sen University, Guangzhou, PR China
| | - Xiaopeng Xu
- MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory for Bio Control, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Sun Yat-sen University, Guangzhou, PR China
| | - Shaoping Weng
- MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory for Bio Control, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Sun Yat-sen University, Guangzhou, PR China
| | - Jianguo He
- MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory for Bio Control, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Sun Yat-sen University, Guangzhou, PR China; School of Marine Sciences, Sun Yat-sen University, Guangzhou, PR China.
| | - Chaozheng Li
- MOE Key Laboratory of Aquatic Product Safety/State Key Laboratory for Bio Control, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China; Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Sun Yat-sen University, Guangzhou, PR China; School of Marine Sciences, Sun Yat-sen University, Guangzhou, PR China.
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28
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Umasuthan N, Bathige SDNK, Noh JK, Lee J. Gene structure, molecular characterization and transcriptional expression of two p38 isoforms (MAPK11 and MAPK14) from rock bream (Oplegnathus fasciatus). FISH & SHELLFISH IMMUNOLOGY 2015; 47:331-343. [PMID: 26363230 DOI: 10.1016/j.fsi.2015.09.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 09/07/2015] [Accepted: 09/07/2015] [Indexed: 06/05/2023]
Abstract
The p38 kinases are one of the four subgroups of mitogen-activated protein kinase (MAPK) superfamily which are involved in the innate immunity. The p38 subfamily that includes four members namely p38α (MAPK14), p38β (MAPK11), p38γ (MAPK12) and p38δ (MAPK13), regulates the activation of several transcription factors. In this study, a p38β (OfMAPK11) homolog and a p38α (OfMAPK14) homolog of Oplegnathus fasciatus were identified at genomic level. Results clearly showed that both MAPK11 and MAPK14 are well-conserved at both genomic structural- and amino acid (aa)-levels. Genomic sequences of OfMAPK11 (∼ 15.6 kb) and OfMAPK14 (∼ 13.4 kb) had 12 exons. A comparison of exon-intron structural arrangement of these genes from different vertebrate lineages indicated that all the exon lengths are highly conserved, except their terminal exons. Full-length cDNAs of OfMAPK11 (3957 bp) and OfMAPK14 (2504 bp) encoded corresponding proteins of 361 aa and 360 aa, respectively. Both OfMAPK proteins harbored a Ser/Thr protein kinases catalytic domain (S_TKc domain) which includes an activation loop with a dual phosphorylation site (TGY motif) and several specific-binding sites for ATP and substrates. Molecular modeling of the activation loop and substrate binding sites of rock bream MAPKs revealed the conservation of crucial residues and their orientation in 3D space. Transcripts of OfMAPKs were ubiquitously detected in eleven tissues examined, however at different levels. The modulation of OfMAPKs' transcription upon pathogen-associated molecular patterns (PAMPs: flagellin, lipopolysaccharide and poly I:C) and pathogens (Edwardsiella tarda, Streptococcus iniae and rock bream iridovirus) was investigated. Among the seven examined tissues, the flagellin-challenge upregulated the mRNA level of both OfMAPKs in the head kidney. Meanwhile, modulation of OfMAPK mRNA expression in the liver upon other immune-challenges varied in a time-dependent manner. Collectively, these results suggest that OfMAPKs are true members of p38 subfamily, which might be induced by different immune stimuli.
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Affiliation(s)
- Navaneethaiyer Umasuthan
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju Self-Governing Province 690-756, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 690-756, Republic of Korea
| | - S D N K Bathige
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju Self-Governing Province 690-756, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 690-756, Republic of Korea
| | - Jae Koo Noh
- Genetics & Breeding Research Center, National Fisheries Research & Development Institute, Geoje 656-842, Republic of Korea
| | - Jehee Lee
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju Self-Governing Province 690-756, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 690-756, Republic of Korea.
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29
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Zhu M, Sun WJ, Wang YL, Li Q, Yang HD, Duan ZL, He L, Wang Q. P38 participates in spermatogenesis and acrosome reaction prior to fertilization in Chinese mitten crab Eriocheir sinensis. Gene 2015; 559:103-11. [DOI: 10.1016/j.gene.2014.11.050] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 10/29/2014] [Accepted: 11/23/2014] [Indexed: 10/24/2022]
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30
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Shi H, Ruan L, Yan X, Yao D, Xu X. The role of Litopenaeus vannamei p38 in white spot syndrome virus infection. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2014; 44:180-185. [PMID: 24361691 DOI: 10.1016/j.dci.2013.12.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 11/29/2013] [Accepted: 12/02/2013] [Indexed: 06/03/2023]
Abstract
p38 as a member of MAPK family, has been conversed from yeast to mammals. It has been implicated in numerous biological processes, including the responses to stress and inflammation. In this study, three closely related p38 MAPK homologs, lvp38a, lvp38b and lvp38c, which differ only in an internal 25-amino acid sequence, have been cloned from Litopenaeus vannamei. Three isoforms shared p38 conserved TGY motif and catalytic center, as well as had maximum identities to human p38α and Drosophila p38b. Tissue distribution revealed that lvp38a and lvp38b were ubiquitously expressed in most tissues, while lvp38c showed at relatively low levels and in a tissue-specific manner. Western blotting analysis showed that lvp38 was activated by phosphorylation during WSSV infection. Furthermore, silencing lvp38 mediated by specific dsRNA in shrimps promoted white spot syndrome virus (WSSV) replication and viral gene transcription at the early stage. These results demonstrated that lvp38 was involved in WSSV infection and might participate in host defense at the early stage.
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Affiliation(s)
- Hong Shi
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration (SOA), No. 178 Daxue Road, Xiamen 361005, PR China.
| | - Lingwei Ruan
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration (SOA), No. 178 Daxue Road, Xiamen 361005, PR China
| | - Xinfu Yan
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration (SOA), No. 178 Daxue Road, Xiamen 361005, PR China
| | - Defu Yao
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration (SOA), No. 178 Daxue Road, Xiamen 361005, PR China; School of Life Science, Xiamen University, Xiamen 361005, PR China
| | - Xun Xu
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, State Oceanic Administration (SOA), No. 178 Daxue Road, Xiamen 361005, PR China
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31
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Liu Y, Qian Z, Qu R, Wang X, He S, Hou F, Liu Q, Mi X, Liu X. Molecular characterization, immune responsive expression and functional analysis of QM, a putative tumor suppressor gene from the Pacific white shrimp, Litopenaeus vannamei. FISH & SHELLFISH IMMUNOLOGY 2014; 37:1-10. [PMID: 24444825 DOI: 10.1016/j.fsi.2014.01.005] [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: 09/20/2013] [Revised: 12/09/2013] [Accepted: 01/03/2014] [Indexed: 06/03/2023]
Abstract
The QM, firstly identified as a putative tumor suppressor gene from human, has been confirmed to possess varieties of functions in a range of organisms. In the present study, the cDNA that encodes a 220-amino-acid QM protein with calculated molecular mass of 25.5 kDa and isoelectric point of 10.07 was characterized from the Pacific white shrimp Litopenaeus vannamei. Analysis of the deduced amino acid sequence of LvQM revealed that it contained a series of conserved functional motifs. Quantitative real-time PCR (qRT-PCR) results showed that the transcript of LvQM was extensively distributed in the tissues under investigation and most highly expressed in gill. After challenged with Vibrio anguillarum, the LvQM transcripts were significantly increased (P < 0.05) both in hepatopancreas and hemocytes in the early experimental phase. When LvQM was knocked down by RNA interference (RNAi), the transcript of prophenoloxidase (proPO) and the phenoloxidase activity (PO) in shrimp hemolymph were dramatically decreased, while the mortality was significantly increased. Furthermore, the recombinant LvQM protein (rLvQM) was successfully expressed in Escherichia coli BL21 (DE3)-pLysS. Injecting the purified rLvQM mixed with V. anguillarum markedly increased the clearance rate of bacteria and PO activity in the shrimp hemolymph. Hence, we conclude that LvQM was involved in the host defense of L. vannamei, probably as a positive regulator to phenoloxidase activity.
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Affiliation(s)
- Yongjie Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Zhaoying Qian
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Rongfeng Qu
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Xianzong Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Shulin He
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Fujun Hou
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Qiao Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Xiao Mi
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Xiaolin Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China.
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