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Tu Z, Zhong J, Li H, Sun L, Huang Y, Yang S, Lu Y, Cai S. Characterization and function analysis of cathepsin C in Marsupenaeusjaponicus. FISH & SHELLFISH IMMUNOLOGY 2024; 146:109379. [PMID: 38242264 DOI: 10.1016/j.fsi.2024.109379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/31/2023] [Accepted: 01/14/2024] [Indexed: 01/21/2024]
Abstract
Cathepsin C is a cysteine protease widely found in invertebrates and vertebrates, and has the important physiological role participating in proteolysis in vivo and activating various functional proteases in immune/inflammatory cells in the animals. In order to study the role of cathepsin C in the disease resistance of shrimp, we cloned cathepsin C gene (MjcathC) from Marsupenaeus japonicus, analyzed its expression patterns in various tissues, performed MjcathC-knockdown, and finally challenged experimental shrimps with Vibrio alginolyticus and WSSV. The results have shown the full length of MjcathC is 1782 bp, containing an open reading frame of 1350 bp encoding 449 amino acids. Homology analysis revealed that the predicted amino acid sequence of MjcathC shared respectively 88.42 %, 87.36 % and 87.58 % similarity with Penaeus monodon, Fenneropenaeus penicillatus and Litopenaeus vannamei. The expression levels of MjcathC in various tissues of healthy M. japonicus are the highest in the liver, followed by the gills and heart, and the lowest in the stomach. The expression levels of MjcathC were significantly up-regulated in all examined tissues of shrimp challenged with WSSV or V. alginolyticus. After knockdown-MjcathC using RNAi technology in M. japonicus, the expression levels of lectin and heat shock protein 70 in MjcathC-knockdown shrimp were significantly down-regulated, and the mortality of MjcathC-knockdown shrimp challenged by WSSV and V. alginolyticus significantly increased. Knockdown of the MjcathC reduced the resistance of M. japonicus to WSSV and V. alginolyticus. The above results have indicated that cathepsin C may play an important role in the antibacterial and antiviral innate immunity of M. japonicus.
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Affiliation(s)
- Zuhao Tu
- Fisheries College of Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China
| | | | | | | | - Yucong Huang
- Fisheries College of Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen Institute of Guangdong Ocean University, Shenzhen, China
| | - Shiping Yang
- Fisheries College of Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen Institute of Guangdong Ocean University, Shenzhen, China
| | - Yishan Lu
- Fisheries College of Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen Institute of Guangdong Ocean University, Shenzhen, China
| | - Shuanghu Cai
- Fisheries College of Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen Institute of Guangdong Ocean University, Shenzhen, China.
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Gul I, Abbas MN, Kausar S, Luo J, Gao X, Mu Y, Fan W, Cui H. Insight into crustacean cathepsins: Structure-evolutionary relationships and functional roles in physiological processes. FISH & SHELLFISH IMMUNOLOGY 2023:108852. [PMID: 37295735 DOI: 10.1016/j.fsi.2023.108852] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/21/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023]
Abstract
Cathepsins belong to a group of proteins that are present in both prokaryotic and eukaryotic organisms and have an extremely high degree of evolutionary conservation. These proteins are functionally active in extracellular environments as soluble enzymatic proteins or attached to plasma membrane receptors. In addition, they occur in cellular secretory vesicles, mitochondria, the cytosol, and within the nuclei of eukaryotic cells. Cathepsins are classified into various groups based on their sequence variations, leading to their structural and functional diversification. The molecular understanding of the physiology of crustaceans has shown that proteases, including cathepsins, are expressed ubiquitously. They also contain one of the central regulatory systems for crustacean reproduction, growth, and immune responses. This review focuses on various aspects of the crustaceans cathepsins and emphasizes their biological roles in different physiological processes such as reproduction, growth, development, and immune responses. We also describe the bioactivity of crustaceans cathepsins. Because of the vital biological roles that cathepsins play as cellular proteases in physiological processes, they have been proposed as potential novel targets for the development of management strategies for the aquaculture industries.
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Affiliation(s)
- Isma Gul
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; State Key Laboratory of Resource Insects, Southwest University, Chongqing, 400716, China
| | - Muhammad Nadeem Abbas
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; State Key Laboratory of Resource Insects, Southwest University, Chongqing, 400716, China
| | - Saima Kausar
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; State Key Laboratory of Resource Insects, Southwest University, Chongqing, 400716, China
| | - Jili Luo
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; State Key Laboratory of Resource Insects, Southwest University, Chongqing, 400716, China
| | - Xinyue Gao
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; State Key Laboratory of Resource Insects, Southwest University, Chongqing, 400716, China
| | - Yuhang Mu
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; State Key Laboratory of Resource Insects, Southwest University, Chongqing, 400716, China
| | - Wenhui Fan
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; Department of Neurology, Chongqing Ninth People's Hospital, Chongqing, 400700, China.
| | - Honghuan Cui
- Cancer Center, Medical Research Institute, Southwest University, Chongqing, 400716, China; State Key Laboratory of Resource Insects, Southwest University, Chongqing, 400716, China.
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Mengal K, Kor G, Kozák P, Niksirat H. Effects of environmental factors on the cellular and molecular parameters of the immune system in decapods. Comp Biochem Physiol A Mol Integr Physiol 2023; 276:111332. [PMID: 36241042 DOI: 10.1016/j.cbpa.2022.111332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 10/04/2022] [Accepted: 10/04/2022] [Indexed: 12/28/2022]
Abstract
Crustaceans and in particular decapods (i.e. shrimp, crabs and lobsters) are a diverse, commercially and ecologically important group of organisms. They are exposed to a range of environmental factors whose abiotic and biotic components are prone to fluctuate beyond their optimum ranges and, in doing so, affect crustaceans' immune system and health. Changes in key environmental factors such as temperature, pH, salinity, dissolved oxygen, ammonia concentrations and pathogens can provoke stress and immune responses due to alterations in immune parameters. The mechanisms through which stressors mediate effects on immune parameters are not fully understood in decapods. Improved knowledge of the environmental factors - above all, their abiotic components - that influence the immune parameters of decapods could help mitigate or constrain their harmful effects that adversely affect the production of decapod crustaceans. The first part of this overview examines current knowledge and information gaps regarding the basic components and functions of the innate immune system of decapods. In the second part, we discuss various mechanisms provoked by environmental factors and categorize cellular and molecular immune responses to each environmental factor with special reference to decapods.
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Affiliation(s)
- Kifayatullah Mengal
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Vodňany, Czech Republic
| | - Golara Kor
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Vodňany, Czech Republic
| | - Pavel Kozák
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Vodňany, Czech Republic
| | - Hamid Niksirat
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Vodňany, Czech Republic.
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Diao Q, Du H, Zhao N, Wu Y, Du X, Sun Y, Zhou Y, Cao Z. Cathepsin C (CTSC) contributes to the antibacterial immunity in golden pompano (Trachinotus ovatus). FISH & SHELLFISH IMMUNOLOGY 2022; 128:316-326. [PMID: 35952999 DOI: 10.1016/j.fsi.2022.07.078] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/12/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
Cathepsins, as a class of protein hydrolases, are widely found in the lysosomes of many tissues and play an essential role in various physiological activities. Cathepsin C (CTSC), a lysosomal cysteine protease, is an essential component of the lysosomal hydrolase family. In this study, we identified a CTSC from Trachinotus ovatus (TroCTSC) and analyzed its function. TroCTSC contained an ORF of 1368 bp and encoded 455 amino acids, which included three conserved catalytically active sites (Cys251, His397, and Asn419). It shares high homology (69.47%-90.77%) with the other known CTSC sequences of teleosts, which was most closely related to Seriola dumerili. TroCTSC was most abundant in the muscle, liver, and head kidney. After Vibrio harveyi infection, the expression levels of TroCTSC in liver, spleen, and head kidney were significantly up-regulated. TroCTSC was found in the cytoplasm with some of which were co-located with the lysosome. After V. harveyi stimulation, TroCTSC was translocated to nucleus in golden pompano snout (GPS) cells. In vitro, results revealed that the optimal hydrolase activity of the recombinant protein, rTroCTSC, was at 40 °C and pH 5.5. The activity of rTroCTSC was promoted by Zn2+ and Ca2+ but inhibited by Fe2+ and Cu2+. However, three mutant proteins, rTroCTSC-C251A, rTroCTSC-H397A, rTroCTSC-N419A, were dramatically reduced the proteolytic activity. Furthermore, in vivo results showed that overexpression of TroCTSC could significantly enhance body's ability to resist V. harveyi and promote the expression of proinflammatory cytokines, including interleukin 1-beta (IL-1β), IL-6, IL-8, interferon-gamma (IFN-γ), and tumor necrosis factor-alpha (TNF-α). In contrast, the interference of TroCTSC expression induced a significant increase in the number of bacteria after V. harveyi infection. Our results suggested that TroCTSC was an essential effector of the innate immune system and played a pivotal role in antibacterial immunity.
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Affiliation(s)
- Qianying Diao
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, PR China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, PR China
| | - Hehe Du
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, PR China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, PR China
| | - Na Zhao
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, PR China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, PR China
| | - Ying Wu
- Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, PR China
| | - Xiangyu Du
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, PR China
| | - Yun Sun
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, PR China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, PR China.
| | - Yongcan Zhou
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, PR China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, PR China.
| | - Zhenjie Cao
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, PR China; Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, College of Marine Science, Hainan University, PR China
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Liu QN, Kausar S, Gul I, Zhou HL, Abbas MN, Dai LS. The red swamp crayfish, Procambarus clarkii cathepsin C, participates in the innate immune response to the viral and bacterial pathogens. FISH & SHELLFISH IMMUNOLOGY 2020; 100:436-444. [PMID: 32200070 DOI: 10.1016/j.fsi.2020.03.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/11/2020] [Accepted: 03/17/2020] [Indexed: 06/10/2023]
Abstract
The cathepsin C, a lysosomal cysteine protease, involves the modulation of immune and inflammatory responses in living organisms. However, the knowledge on cathepsin C in red swamp crayfish (Procambarus clarkii), a freshwater crustacean with economic values, remained unclear. In the present study, we provide identification and molecular characterization of cathepsin C from P. clarkii. (Hereafter Pc-cathepsin C). The Pc-cathepsin C cDNA contained a 1356 bp open reading frame that encoded a protein of 451 amino acid residues. The deduced amino acid sequence comprised of cathepsin C exclusion domain and pept_C1 domain, and also catalytic residues (Cys248, His395 and Asn417). Analysis of the transcriptional patterns of the Pc-cathepsin C gene revealed that it was broadly distributed in various tissues of P. clarkii, and it was more abundant in the hepatopancreas and gut. Following a challenge with viral and bacterial pathogen-associated molecular patterns, the expression of Pc-cathepsin C was strongly enhanced at different time points. The knockdown of Pc-cathepsin C, altered the expression of immune-responsive genes, suggesting its immunoregulatory role in P. clarkii. This study has identified and provided the immunoregulatory function of Pc-cathepsin C, which will contribute to further investigation of the molecular mechanism of cathepsin C in crustaceans.
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Affiliation(s)
- Qiu-Ning Liu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, PR China; Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, School of Ocean and Biological Engineering, Yancheng Teachers University, Yancheng, 224007, PR China
| | - Saima Kausar
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400715, China; Department of Zoology and Fisheries, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Isma Gul
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400715, China; Department of Zoology and Fisheries, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Hai-Ling Zhou
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, PR China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, College of Biotechnology, Southwest University, Chongqing, 400715, China; Department of Zoology and Fisheries, University of Agriculture, Faisalabad, 38000, Pakistan.
| | - Li-Shang Dai
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, PR China.
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Li M, Wang J, Huang Q, Li C. Proteomic analysis highlights the immune responses of the hepatopancreas against Hematodinium infection in Portunus trituberculatus. J Proteomics 2019; 197:92-105. [DOI: 10.1016/j.jprot.2018.11.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 10/15/2018] [Accepted: 11/16/2018] [Indexed: 12/20/2022]
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Wei S, Wang S, Yang M, Huang Y, Wei J, Huang X, Qin Q. Characterization of cathepsin C from orange-spotted grouper, Epinephelus coioides involved in SGIV infection. FISH & SHELLFISH IMMUNOLOGY 2019; 84:423-433. [PMID: 30308297 DOI: 10.1016/j.fsi.2018.10.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 08/26/2018] [Accepted: 10/07/2018] [Indexed: 06/08/2023]
Abstract
The lysosomal cysteine protease cathepsin C plays a pivotal role in regulation of inflammatory and immune responses. However, the function of fish cathepsin C in virus replication remains largely unknown. In this study, cathepsin C gene (Ec-CC) was cloned and characterized from orange-spotted grouper, Epinephelus coioides. The full-length Ec-CC cDNA was composed of 2077 bp. It contained an open reading frame (ORF) of 1374 bp and encoded a 458-amino acid protein which shared 89% identity to cathepsin C from bicolor damselfish (Stegastes partitus). Amino acid alignment analysis showed that Ec-CC contained an N-terminal signal peptide, the propeptide region and the mature peptide. RT-PCR analysis showed that Ec-CC transcript was expressed in all the examined tissues which abundant in spleen and head kidney. After challenged with Singapore grouper iridovirus (SGIV) stimulation, the relative expression of EC-CC was significantly increased at 24 h post-infection. Subcellular localization analysis revealed that Ec-CC was distributed mainly in the cytoplasm. Further studies showed that overexpression of Ec-CC in vitro significantly delayed the cytopathic effect (CPE) progression evoked by SGIV and inhibited the viral genes transcription. Moreover, overexpression of Ec-CC significantly increased the expression of proinflammatory cytokines during SGIV infection. Taken together, our results demonstrated that Ec-CC might play a functional role in SGIV infection by regulating the inflammation response.
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Affiliation(s)
- Shina Wei
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Shaowen Wang
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Min Yang
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Youhua Huang
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Jingguang Wei
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Xiaohong Huang
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Qiwei Qin
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.
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Jia Z, Wang L, Jiang S, Sun M, Wang M, Yi Q, Song L. Functional characterization of hemocytes from Chinese mitten crab Eriocheir sinensis by flow cytometry. FISH & SHELLFISH IMMUNOLOGY 2017; 69:15-25. [PMID: 28826623 DOI: 10.1016/j.fsi.2017.08.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Revised: 07/31/2017] [Accepted: 08/03/2017] [Indexed: 06/07/2023]
Abstract
Hemocytes comprise a diversity of cell types with functional and structural heterogeneity, and they play key roles in the host defense of invertebrates. In the present study, the hemocytes from Chinese mitten crab Eriocheir sinensis were directly separated into two groups by flow cytometry. The hemocytes in P1 group were full of round and abundant granules with deeply staining cytoplasm, while P2 hemocytes were more diverse with a wide range of sizes and less granularity. Both P1 and P2 hemocytes exhibited phagocytic ability, but the phagocytic rate of P1 hemocytes increased which was significantly higher than that of P2 hemocytes after LPS stimulations. The levels of ROS production and intracellular Calcium as well as lysosome content were higher in P1 hemocytes than that in P2 hemocytes under both normal and immune-activated situations. The genes involved in phagocytosis, antimicrobial and antioxidant activities were mainly expressed in P1 hemocytes, while the genes involved in proPO activation system were highly expressed in P2 hemocytes. These results collectively suggested that P1 hemocytes were the main immunocompetent hemocytes in Chinese mitten crab and P2 hemocytes mainly participated in proPO activation system.
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Affiliation(s)
- Zhihao Jia
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lingling Wang
- Functional Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Shuai Jiang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Mingzhe Sun
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mengqiang Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Qilin Yi
- Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian 116023, China
| | - Linsheng Song
- Functional Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian 116023, China.
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Khaket TP, Dhanda S, Jodha D, Singh J. Biochemical studies on dipeptidyl peptidase I (cathepsin C) from germinated Vigna radiata seeds. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.04.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Jeong CB, Kim BM, Choi HJ, Baek I, Souissi S, Park HG, Lee JS, Rhee JS. Genome-wide identification and transcript profile of the whole cathepsin superfamily in the intertidal copepod Tigriopus japonicus. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2015; 53:1-12. [PMID: 26116442 DOI: 10.1016/j.dci.2015.06.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 06/15/2015] [Accepted: 06/16/2015] [Indexed: 06/04/2023]
Abstract
Modulation of expression of cathepsins in innate immune response has previously been reported in mollusks and large crustaceans including crabs, lobsters, and shrimps in response to immune challenges. However, similar responses in copepods and the related cathepsin members remain under-investigated. To understand molecular and innate immune responses in the intertidal copepod Tigriopus japonicus, we identified the full spectra of cathepsin members (2 aspartyl proteases, 18 cysteine proteases, and 4 serine proteases) and also analyzed transcriptional expression of cathepsin (Tj-cathepsin) genes in developmental stages, lipopolysaccharide (LPS)- and two Vibrio species-exposed T. japonicus. The transcriptional levels of most Tj-cathepsin genes were highly increased during the molting transition from the nauplius to the copepodid stages. LPS treatment induced innate immune response via significant transcriptional increase of serine cathepsin (e.g., cathepsin As) members with induction of several cysteine cathepsin genes. However, Tj-aspartyl cathepsin E-like and a novel cysteine cathepsin were slightly reduced in response to LPS exposure. Interestingly, Vibrio species showed very low transcriptional sensitivity in the expression of entire cathepsins, while LPS induced several cathepsin gene-involved primitive immune responses in T. japonicus. In this paper, we discuss how whole cathepsin expression profiling can be linked to host defense mechanism to better understand and uncover the underlying mechanism of copepods' innate immunity.
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Affiliation(s)
- Chang-Bum Jeong
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon, 440-746, South Korea; Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul, 133-791, South Korea
| | - Bo-Mi Kim
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon, 440-746, South Korea
| | - Hyeon-Jeong Choi
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon, 406-772, South Korea
| | - Inseon Baek
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon, 406-772, South Korea
| | - Sami Souissi
- Université Lille Nord de France, F-59000, Lille, France
| | - Heum Gi Park
- Department of Marine Resource Development, College of Life Sciences, Gangneung-Wonju National University, Gangneung, 210-702, South Korea
| | - Jae-Seong Lee
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon, 440-746, South Korea.
| | - Jae-Sung Rhee
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon, 406-772, South Korea.
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Zhang K, Su J, Chen S, Yu S, Tan J, Xu M, Liang H, Zhao Y, Chao H, Yang L, Cui H. Molecular cloning, characterization and expression analysis of cathepsin O in silkworm Bombyx mori related to bacterial response. Mol Immunol 2015; 66:409-17. [PMID: 25996894 DOI: 10.1016/j.molimm.2015.04.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 04/13/2015] [Accepted: 04/13/2015] [Indexed: 10/23/2022]
Abstract
Cathepsins are the main members of the cysteine family and play important roles in immune response in vertebrates. The Cathepsin O of Bombyx mori (BmCathepsin O) was cloned from the hemocytes by the rapid amplification of cDNA ends (RACE). The genomic DNA was 6131bp long with a total of six exons and five introns. Its pre-mRNA was spliced to generate two spliceosomes. By comparisons with other reported cathepsins O, it was concluded that the identity between them ranged from 29 to 39%. Expression analysis indicated that BmCathepsin O was specific-expressed in hemocytes, and highly expressed at the 4th molting and metamorphosis stages. Immunofluorescence assay and qRT-PCR showed that BmCathepsin O was expressed in granulocytes and plasmatocytes. Interestingly, BmCathepsin O was significantly up-regulated after stimulated by 20-hydroxyecdysone (20-E) in vivo, which suggested that BmCathepsin O may be regulated by 20E. Moreover, activation of BmCathepsin O was also observed in hemocytes challenged by Escherichia coli, indicating its potential involvement in the innate immune system of silkworm, B. mori. In summary, our studies provide a new insight into the functional features of Cathepsin O.
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Affiliation(s)
- Kui Zhang
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Jingjing Su
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Siyuan Chen
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Shuang Yu
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Juan Tan
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Man Xu
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Hanghua Liang
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Yuzu Zhao
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Huijuan Chao
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Liqun Yang
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China.
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Lu S, Soares TS, Vaz Junior IS, Lovato DV, Tanaka AS. Rmcystatin3, a cysteine protease inhibitor from Rhipicephalus microplus hemocytes involved in immune response. Biochimie 2014; 106:17-23. [DOI: 10.1016/j.biochi.2014.07.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Accepted: 07/15/2014] [Indexed: 10/25/2022]
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Niu D, Xie S, Bai Z, Wang L, Jin K, Li J. Identification, expression, and responses to bacterial challenge of the cathepsin C gene from the razor clam Sinonovacula constricta. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2014; 46:241-245. [PMID: 24792213 DOI: 10.1016/j.dci.2014.04.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 04/18/2014] [Accepted: 04/18/2014] [Indexed: 06/03/2023]
Abstract
Cathepsin C (dipeptidyl-peptidaseI, DPPI) is a lysosomal cysteine proteinase that belongs to the papain superfamily, and it is involved in protein degradation and proenzyme activation. However, very little is known about the function of cathepsin C in bivalves. In the present study, we identified the cathepsin C gene in the razor clam Sinonovacula constricta (Sc-CTSC). The full-length Sc-CTSC cDNA contained a complete open reading frame (ORF) of 1371 nt encoding 456 amino acids, a 98 bp 5' UTR, and a 1043 bp 3' UTR. The ORF of Sc-CTSC consisted of a putative signal peptide of 22 aa, a propeptide of 229 aa, and a mature peptide of 205 aa containing the active site triad of Cys, His, and Asn. The Sc-CTSC transcript was expressed in a wide range of tissues but exhibited the greatest level of expression in the digestive gland. During the early developmental stages, the transcript was detected widely. Upon injection with Vibrio anguillarum, the Sc-CTSC transcript was significantly up-regulated in digestive gland, mantle, and gill tissues. The results provided important information for further exploring the roles of cathepsin C in the innate immune responses.
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Affiliation(s)
- Donghong Niu
- Shanghai Engineering Research Center of Aquaculture and College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources Certificated by Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
| | - Shumei Xie
- Shanghai Engineering Research Center of Aquaculture and College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China
| | - Zhiyi Bai
- Shanghai Engineering Research Center of Aquaculture and College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources Certificated by Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
| | - Lie Wang
- Shanghai Engineering Research Center of Aquaculture and College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China
| | - Kai Jin
- Shanghai Engineering Research Center of Aquaculture and College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China
| | - Jiale Li
- Shanghai Engineering Research Center of Aquaculture and College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources Certificated by Ministry of Agriculture, Shanghai Ocean University, Shanghai, China.
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Clark KF, Greenwood SJ, Acorn AR, Byrne PJ. Molecular immune response of the American lobster (Homarus americanus) to the White Spot Syndrome Virus. J Invertebr Pathol 2013; 114:298-308. [PMID: 24045127 DOI: 10.1016/j.jip.2013.09.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 09/03/2013] [Accepted: 09/04/2013] [Indexed: 01/09/2023]
Abstract
The adult American lobster (Homarus americanus) is susceptible to few naturally occurring pathogens, and no viral pathogen is known to exist. Despite this, relatively little is known about the H. americanus immune system and nothing is known about its potential viral immune response. Hundreds of rural communities in Atlantic Canada rely on the lobster fishery for their economic sustainability and could be devastated by large-scale pathogen-mediated mortality events. The White Spot Syndrome Virus is the most economically devastating viral pathogen to global shrimp aquaculture production and has been proposed to be capable of infecting all decapod crustaceans including the European Lobster. An in vivo WSSV injection challenge was conducted in H. americanus and WSSV was found to be capable of infecting and replicating within lobsters held at 20°C. The in vivo WSSV challenge also generated the first viral disease model of H. americanus and allowed for the high-throughput examination of transcriptomic changes that occur during viral infection. Microarray analysis found 136 differentially expressed genes and the expression of a subset of these genes was verified using RT-qPCR. Anti-lipopolysaccharide isoforms and acute phase serum amyloid protein A expression did not change during WSSV infection, contrary to previous findings during bacterial and parasitic infection of H. americanus. This, along with the differential gene expression of thioredoxin and trypsin isoforms, provides compelling evidence that H. americanus is capable of mounting an immune response specific to infection by different pathogen classes.
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Affiliation(s)
- K Fraser Clark
- AVC Lobster Science Centre, Atlantic Veterinary College, University of Prince Edward Island, 550 University Avenue, Charlottetown, Prince Edward Island C1A 4P3, Canada; Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, 550 University Avenue, Charlottetown, Prince Edward Island C1A 4P3, Canada.
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Macrobrachium rosenbergii cathepsin L: molecular characterization and gene expression in response to viral and bacterial infections. Microbiol Res 2013; 168:569-79. [PMID: 23669240 DOI: 10.1016/j.micres.2013.04.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 04/15/2013] [Accepted: 04/15/2013] [Indexed: 11/20/2022]
Abstract
Cathepsin L (MrCathL) was identified from a constructed cDNA library of freshwater prawn Macrobrachium rosenbergii. MrCathL full-length cDNA is 1161 base pairs (bp) with an ORF of 1026bp which encodes a polypeptide of 342 amino acid (aa) long. The eukaryotic cysteine proteases, histidine and asparagine active site residues were identified in the aa sequence of MrCathL at 143-154, 286-296 and 304-323, respectively. The pair wise clustalW analysis of MrCathL showed the highest similarity (97%) with the homologous cathepsin L from Macrobrachium nipponense and the lowest similarity (70%) from human. Phylogenetic analysis revealed two distinct clusters of the invertebrates and vertebrates cathepsin L in the phylogenetic tree. MrCathL and cathepsin L from M. nipponense were clustered together, formed a sister group to cathepsin L of Penaeus monodon, and finally clustered to Lepeophtheirus salmonis. High level of (P<0.05) MrCathL gene expression was noticed in haemocyte and lowest in eyestalk. Furthermore, the MrCathL gene expression in M. rosenbergii was up-regulated in haemocyte by virus [M. rosenbergii nodovirus (MrNV) and white spot syndrome baculovirus (WSBV)] and bacteria (Vibrio harveyi and Aeromonas hydrophila). The recombinant MrCathL exhibited a wide range of activity in various pH between 3 and 10 and highest at pH 7.5. Cysteine proteinase (stefin A, stefin B and antipain) showed significant influence (100%) on recombinant MrCathL enzyme activity. The relative activity and residual activity of recombinant MrCathL against various metal ions or salts and detergent tested at different concentrations. These results indicated that the metal ions, salts and detergent had an influence on the proteinase activity of recombinant MrCathL. Conclusively, the results of this study imply that MrCathL has high pH stability and is fascinating object for further research on the function of cathepsin L in prawn innate immune system.
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