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Song J, Farhadi A, Tan K, Lim L, Tan K. Impact of anthropogenic global hypoxia on the physiological response of bivalves. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:172056. [PMID: 38552980 DOI: 10.1016/j.scitotenv.2024.172056] [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: 01/27/2024] [Revised: 03/17/2024] [Accepted: 03/26/2024] [Indexed: 04/06/2024]
Abstract
Dissolved oxygen (DO) is an important parameter that affects the biology, physiology, and immunology of aquatic animals. In recent decades, DO levels in the global oceans have sharply decreased, partly due to an increase in atmospheric carbon dioxide, temperature, and anthropogenic nutrient loads. Although there have been many reports on the effects of hypoxia on the survival, growth, behavior, and immunity of bivalves, this information has not been well organized. Therefore, this article provides a comprehensive review of the effects of hypoxia on bivalves. In general, hypoxia negatively impacts the food consumption rate and assimilation efficiency, as well as increasing respiration rates in many bivalves. As a result, it reduces the energy allocation for bivalve growth, shell formation, and reproduction. In severe cases, prolonged exposure to hypoxia can result in mass mortality in bivalves. Moreover, hypoxia also has adverse effects on the immunity and response of bivalves to predators, including decreased burial depths, sensitivity to predators, impairment of byssus production, and negatively impacts on the integrity, strength, and composition of bivalve shells. The tolerance of bivalves to hypoxia largely depends on size and species, with larger bivalves being more susceptible to hypoxia and intertidal species being relatively more tolerant to hypoxia. The information in this article is very useful for elucidating the current research status of hypoxia on bivalves and determining future research directions.
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Affiliation(s)
- Jingjing Song
- College of Marine Science, Guangxi Key Laboratory of Beibu Gulf Biodiversity Conservation, Beibu Gulf Ocean Development Research Centre, Beibu Gulf University, Qinzhou, Guangxi, China
| | - Ardavan Farhadi
- Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Hainan Aquaculture Breeding Engineering Research Center, College of Marine Biology and Aquaculture, Hainan University, Haikou, Hainan 570228, China
| | - Kianann Tan
- College of Marine Science, Guangxi Key Laboratory of Beibu Gulf Biodiversity Conservation, Beibu Gulf Ocean Development Research Centre, Beibu Gulf University, Qinzhou, Guangxi, China
| | - Leongseng Lim
- Borneo Marine Research Institute, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
| | - Karsoon Tan
- College of Marine Science, Guangxi Key Laboratory of Beibu Gulf Biodiversity Conservation, Beibu Gulf Ocean Development Research Centre, Beibu Gulf University, Qinzhou, Guangxi, China.
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Freire JMS, Farias ND, Hégaret H, da Silva PM. Morphological and functional characterization of the oyster Crassostrea gasar circulating hemocytes: Cell types and phagocytosis activity. FISH AND SHELLFISH IMMUNOLOGY REPORTS 2023; 4:100089. [PMID: 36941832 PMCID: PMC10023951 DOI: 10.1016/j.fsirep.2023.100089] [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: 09/12/2022] [Revised: 02/15/2023] [Accepted: 02/26/2023] [Indexed: 03/02/2023] Open
Abstract
Hemocytes are the circulating cells of the hemolymph of oysters and are responsible for numerous physiological functions, including immune defense. The oyster Crassostrea gasar is a native species inhabiting mangrove habitat and is of great commercial interest, cultured throughout the Brazilian coast, mainly in the north and northeast. Despite its commercial importance, little is known about its immunological aspects and defense cells, the hemocytes. This work aimed to morphologically characterize hemocytes of the oyster C. gasar and to study one of the main cellular defense response, phagocytosis, using light microscopy and flow cytometry. The results showed the presence of six hemocyte populations in C. gasar hemolymph. These comprise of large and small granulocytes, large and small hyalinocytes, blast-like cells and a rare type classified as vesicular or serous hemocytes. Hyalinocytes were highly abundant and the most heterogeneous cell population, while small granulocytes, along with vesicular hemocytes were the less abundant population. Hemocytes of C. gasar oysters demonstrated capabilities to phagocytose three different types of particles tested: zymosan A, latex particles and Escherichia coli, indicating a broad defense capacity. The zymosan A were the most engulfed particles, followed by beads, mainly phagocytized by granulocytes, the most phagocytic cells, and finally E. coli, which were the least phagocytized. This study is the first characterization of C. gasar oyster hemocytes and will support future studies that aim to understand the participation of different hemocyte types in defense responses against pathogens and/or environmental changes.
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Affiliation(s)
- Jesarela Merabe Silva Freire
- Departamento de Biologia Molecular, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba – Campus I, 58051-900, João Pessoa, PB, Brazil
| | - Natanael Dantas Farias
- Departamento de Biologia Molecular, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba – Campus I, 58051-900, João Pessoa, PB, Brazil
| | - Hélène Hégaret
- Laboratoire des Sciences de l'Environnement Marin LEMAR-UMR6539, Institut Universitaire Européen de la Mer, Université de Bretagne Occidentale, Place Copernic, Technopôle Brest-Iroise, 29280, Plouzané, France
| | - Patricia Mirella da Silva
- Departamento de Biologia Molecular, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba – Campus I, 58051-900, João Pessoa, PB, Brazil
- Corresponding author.
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Liu D, Huang R, Yuan K, Zhao J, Wang Z, Yi Q, Wang J. Molecular characterization of a cation-dependent mannose-6-phosphate receptor gene in Crassostrea hongkongensis and its responsiveness in Vibrio alginolyticus infection. FISH & SHELLFISH IMMUNOLOGY 2023; 139:108843. [PMID: 37211330 DOI: 10.1016/j.fsi.2023.108843] [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: 03/12/2023] [Revised: 05/16/2023] [Accepted: 05/18/2023] [Indexed: 05/23/2023]
Abstract
The cation-dependent mannose-6-phosphate receptor (CD-M6PR) is a P-type lectin that plays a crucial role in lysosomal enzyme transport, bacterial resistance, and viral entry. In this study, we cloned and analyzed the ORF of the CD-M6PR gene from Crassostrea hongkongensis and named it ChCD-M6PR. We analyzed the nucleotide and amino acid sequence of ChCD-M6PR, its tissue expression pattern and immune response to Vibrio alginolyticus. Our results showed that the ORF of ChCD-M6PR was 801 bp long and encoded a protein of 266 amino acids with a signal peptide at the N-terminus, as well as Man-6-P_recep, ATG27 and transmembrane structural domains. Phylogenetic analysis indicated that Crassostrea hongkongensis shared the highest similarity with Crassostrea gigas in the terms of CD-M6PR. The ChCD-M6PR gene was found to be expressed in various tissues, with the highest expression observed in the hepatopancreas and the lowest in the hemocytes by the fluorescence quantitative PCR. Furthermore, the expression of ChCD-M6PR gene was significantly up-regulated for a short time in response to Vibrio alginolyticus infection in the gill and hemocytes, while it was down-regulated in the gonads. The expression patterns of ChCD-M6PR also varied in the other tissues. The 96 h cumulative mortality rate of Crassostrea hongkongensis infected with Vibrio alginolyticus after knockdown the ChCD-M6PR gene was significantly higher. Overall, our findings suggests that ChCD-M6PR plays a crucial role in the immune response of Crassostrea hongkongensis to Vibrio alginolyticus infection, and its tissue-specific expression patterns may be indicatitive of varied immune responses across tissues.
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Affiliation(s)
- Dan Liu
- College of Fisheries and Life, Dalian Ocean University, Dalian, 116000, China; School of Life Science, Huizhou University, Huizhou, 516000, China
| | - RunQing Huang
- School of Life Science, Huizhou University, Huizhou, 516000, China
| | - Kai Yuan
- School of Life Science, Huizhou University, Huizhou, 516000, China
| | - JiaHao Zhao
- School of Life Science, Huizhou University, Huizhou, 516000, China; College of Fisherie, Tianjin Agricultural University, Tianjin, 300384, China
| | - ZhaoRui Wang
- School of Life Science, Huizhou University, Huizhou, 516000, China
| | - QiLin Yi
- College of Fisheries and Life, Dalian Ocean University, Dalian, 116000, China
| | - JiangYong Wang
- School of Life Science, Huizhou University, Huizhou, 516000, China.
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Li Y, Xue Y, Peng Z, Zhang L. Immune diversity in lophotrochozoans, with a focus on recognition and effector systems. Comput Struct Biotechnol J 2023; 21:2262-2275. [PMID: 37035545 PMCID: PMC10073891 DOI: 10.1016/j.csbj.2023.03.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 03/11/2023] [Accepted: 03/19/2023] [Indexed: 03/30/2023] Open
Abstract
Lophotrochozoa is one of the most species-rich but immunologically poorly explored phyla. Although lack of acquired response in a narrow sense, lophotrochozoans possess various genetic mechanisms that enhance the diversity and specificity of innate immune system. Here, we review the recent advances of comparative immunology studies in lophotrochozoans with focus on immune recognition and effector systems. Haemocytes and coelomocytes are general important yet understudied player. Comparative genomics studies suggest expansion and functional divergence of lophotrochozoan immune reorganization systems is not as "homogeneous and simple" as we thought including the large-scale expansion and molecular divergence of pattern recognition receptors (PRRs) (TLRs, RLRs, lectins, etc.) and signaling adapters (MyD88s etc.), significant domain recombination of immune receptors (RLR, NLRs, lectins, etc.), extensive somatic recombination of fibrinogenrelated proteins (FREPs) in snails. Furthermore, there are repeatedly identified molecular mechanisms that generate immune effector diversity, including high polymorphism of antimicrobial peptides and proteins (AMPs), reactive oxygen and nitrogen species (RONS) and cytokines. Finally, we argue that the next generation omics tools and the recently emerged genome editing technicism will revolutionize our understanding of innate immune system in a comparative immunology perspective.
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Affiliation(s)
- Yongnan Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology & Center of Deep Sea Research, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Yu Xue
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology & Center of Deep Sea Research, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Qingdao Agricultural University, Qingdao, China
| | - Zhangjie Peng
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology & Center of Deep Sea Research, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- College of Marine Science, University of Chinese Academy of Sciences, Beijing, China
| | - Linlin Zhang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology & Center of Deep Sea Research, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
- College of Marine Science, University of Chinese Academy of Sciences, Beijing, China
- Corresponding author at: CAS and Shandong Province Key Laboratory of Experimental Marine Biology & Center of Deep Sea Research, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.
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de la Ballina NR, Maresca F, Cao A, Villalba A. Bivalve Haemocyte Subpopulations: A Review. Front Immunol 2022; 13:826255. [PMID: 35464425 PMCID: PMC9024128 DOI: 10.3389/fimmu.2022.826255] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/23/2022] [Indexed: 12/26/2022] Open
Abstract
Bivalve molluscs stand out for their ecological success and their key role in the functioning of aquatic ecosystems, while also constituting a very valuable commercial resource. Both ecological success and production of bivalves depend on their effective immune defence function, in which haemocytes play a central role acting as both the undertaker of the cellular immunity and supplier of the humoral immunity. Bivalves have different types of haemocytes, which perform different functions. Hence, identification of cell subpopulations and their functional characterisation in immune responses is essential to fully understand the immune system in bivalves. Nowadays, there is not a unified nomenclature that applies to all bivalves. Characterisation of bivalve haemocyte subpopulations is often combined with 1) other multiple parameter assays to determine differences between cell types in immune-related physiological activities, such as phagocytosis, oxidative stress and apoptosis; and 2) immune response to different stressors such as pathogens, temperature, acidification and pollution. This review summarises the major and most recent findings in classification and functional characterisation of the main haemocyte types of bivalve molluscs.
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Affiliation(s)
- Nuria R. de la Ballina
- Centro de Investigacións Mariñas (CIMA), Consellería do Mar, Xunta de Galicia, Vilanova de Arousa, Spain
| | - Francesco Maresca
- MARE - Marine and Environmental Sciences Centre, Laboratório de Ciências do Mar, Universidade de Évora, Sines, Portugal
| | - Asunción Cao
- Centro de Investigacións Mariñas (CIMA), Consellería do Mar, Xunta de Galicia, Vilanova de Arousa, Spain
| | - Antonio Villalba
- Centro de Investigacións Mariñas (CIMA), Consellería do Mar, Xunta de Galicia, Vilanova de Arousa, Spain
- Departamento de Ciencias de la Vida, Universidad de Alcalá, Alcalá de Henares, Spain
- Research Centre for Experimental Marine Biology and Biotechnology, Plentziako Itsas Estazioa (PIE), University of the Basque Country (UPV/EHU), Plentzia, Spain
- *Correspondence: Antonio Villalba,
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de la Ballina NR, Villalba A, Cao A. Shotgun analysis to identify differences in protein expression between granulocytes and hyalinocytes of the European flat oyster Ostrea edulis. FISH & SHELLFISH IMMUNOLOGY 2021; 119:678-691. [PMID: 34748932 DOI: 10.1016/j.fsi.2021.10.045] [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: 03/12/2021] [Revised: 10/19/2021] [Accepted: 10/31/2021] [Indexed: 06/13/2023]
Abstract
Recovery of wild populations of the European flat oyster Ostrea edulis is important for ecosystem health and conservation of this species, because native oyster populations have dramatically declined or disappeared in most European waters. Diseases have contributed to oyster decline and are important constrains for oyster recovery. Understanding oyster immune system should contribute to design effective strategies to fight oyster diseases. Haemocytes play a pivotal role in mollusc immune responses protecting from infection. Two main types of haemocytes, granulocytes and hyalinocytes, are distinguished in O. edulis. A study aiming to explore differential functions between both haemocyte types and, thus, to enrich the knowledge of Ostrea edulis immune system, was performed by comparing the proteome of the two haemolymph cell types, using a shotgun approach through liquid chromatography (LC) coupled to mass spectrometry (MS). Cells from oyster haemolymph were differentially separated by Percoll density gradient centrifugation. Shotgun LC-MS/MS performance allowed the identification of 145 proteins in hyalinocytes and 138 in the proteome of granulocytes. After a comparative analysis, 55 proteins with main roles in defence were identified, from which 28 were representative of granulocytes and 27 of hyalinocytes, plus 11 proteins shared by both cell types. Different proteins involved in signal transduction, apoptosis, oxidative response, processes related with the cytoskeleton and structure, recognition and wound healing were identified as representatives of each haemocyte type. Important signalling pathways in the immune response such as MAPK, Ras and NF-κβ seemed to be more relevant for granulocytes, while the Wnt signalling pathway, particularly relevant for wound healing, more relevant in hyalinocytes. The differences in proteins involved in recognition and in cytoskeleton and structure suggest differential specialisation in processes of phagocytosis and internalisation of pathogens between haemocyte types. Apoptosis seemed more active in granulocytes. The differences in proteins involved in oxidative response also suggest different redox processes in each cell type.
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Affiliation(s)
- Nuria R de la Ballina
- Centro de Investigacións Mariñas (CIMA), Consellería do Mar, Xunta de Galicia, 36620, Vilanova de Arousa, Spain
| | - Antonio Villalba
- Centro de Investigacións Mariñas (CIMA), Consellería do Mar, Xunta de Galicia, 36620, Vilanova de Arousa, Spain; Departamento de Ciencias de la Vida, Universidad de Alcalá, 28871, Alcalá de Henares, Spain; Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), 48620, Plentzia, Spain.
| | - Asunción Cao
- Centro de Investigacións Mariñas (CIMA), Consellería do Mar, Xunta de Galicia, 36620, Vilanova de Arousa, Spain
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Zhang Y, Xu S, Jiang N, Tang H, Dong H, Zhao QP. Morphology and activities of cell populations of haemocytes in Oncomelania hupensis following Schistosoma japonicum infection. J Invertebr Pathol 2021; 181:107590. [PMID: 33872572 DOI: 10.1016/j.jip.2021.107590] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 12/30/2022]
Abstract
Oncomelania hupensis is the only obligatory intermediate host of Schistosoma japonicum, the pathogen of zoonosis schistosomiasis. Haemocytes play a critical role in the cellular immune defence of O. hupensis against S. japonicum challenge. Here, the morphology and classification of haemocytes of O. hupensis were investigated by Giemsa staining and light microscopy, combining with the scanning and transmission electron microscopy and flow cytometry. Granulocytes and hyalinocytes were confirmed as two main types of haemocytes, account for ~ 10% and ~ 90% of all haemocytes, with size varying in 4.3-10.9 μm and 0.4-30.8 μm, respectively. Subpopulations can be identified further by granule feature, shape, size, and surface and inner structure of cells. The heterogeneity in morphology implied varied developmental process and function of haemocyte subpopulations. After the S. japonicum challenge, haemocytes of O. hupensis respond to S. japonicum invasion immediately. The dynamic change of haemocyte subpopulations indicates that the small hyalinocyte could differentiate into a larger one or granulocyte after S. japonicum challenge, and the granulocytes and larger hyalinocytes play leading roles in early defence reaction, but in different ways. Phagocytosis and apoptosis of haemocytes in O. hupensis were proved to be related to immune defence against S. japonicum, with the combined effect of granulocytes and larger hyalinocytes. However, the main pathway of each subpopulation to take effect in different periods need further investigation.
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Affiliation(s)
- Yan Zhang
- Department of Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, Hubei Province, China
| | - Sha Xu
- Department of Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, Hubei Province, China
| | - Ni Jiang
- Department of Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, Hubei Province, China
| | - Hongbin Tang
- Center for Animal Experiment of Wuhan University, Wuhan 430071, Hubei Province, China
| | - Huifen Dong
- Department of Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, Hubei Province, China
| | - Qin-Ping Zhao
- Department of Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, Hubei Province, China.
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Lu J, Shi Y, Yao T, Bai C, Jiang J, Ye L. Gender Differences in Hemocyte Immune Parameters of Hong Kong Oyster Crassostrea hongkongensis During Immune Stress. Front Immunol 2021; 12:659469. [PMID: 33868307 PMCID: PMC8044396 DOI: 10.3389/fimmu.2021.659469] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 03/15/2021] [Indexed: 11/21/2022] Open
Abstract
Gender differences in individual immune responses to external stimuli have been elucidated in many invertebrates. However, it is unclear if gender differences do exist in the Hong Kong oyster Crassostrea hongkongensis, one of the most valuable marine species cultivated along the coast of South China. To clarify this, we stimulated post-spawning adult C. hongkongensis with Vibrio harveyi and lipopolysaccharide (LPS). Gender-based differences in some essential functional parameters of hemocytes were studied via flow cytometry. Obvious gender-, subpopulation-, and immune-specific alterations were found in the hemocyte immune parameters of C. hongkongensis. Three hemocyte subpopulations were identified: granulocytes, semi-granulocytes, and agranulocytes. Granulocytes, the chief phagocytes and major producers of esterase, reactive oxygen species, and nitric oxide, were the main immunocompetent hemocytes. Immune parameter alterations were notable in the accumulation of granulocyte esterase activities, lysosomal masses, nitric oxide levels, and granulocyte numbers in male oysters. These results suggest that post-spawning-phase male oysters possess a more powerful immune response than females. Gender and subpopulation differences in bivalve immune parameters should be considered in the future analysis of immune parameters when studying the impact of pathogenic or environmental factors.
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Affiliation(s)
- Jie Lu
- Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Yanyan Shi
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
| | - Tuo Yao
- Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Changming Bai
- Key Laboratory of Maricultural Organism Disease Control, Ministry of Agriculture and Rural Affairs, Qingdao Key Laboratory of Mariculture Epidemiology and Biosecurity, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Jingzhe Jiang
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Lingtong Ye
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
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Augustine R, Zahid AA, Mraiche F, Alam K, Al Moustafa AE, Hasan A. Gelatin-methacryloyl hydrogel based in vitro blood-brain barrier model for studying breast cancer-associated brain metastasis. Pharm Dev Technol 2021; 26:490-500. [PMID: 33416013 DOI: 10.1080/10837450.2021.1872624] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Breast cancer is one of the leading causes of brain metastasis. Metastasis to the brain occurs if cancer cells manage to traverse the 'blood-brain barrier' (BBB), which is a barrier with a very tight junction (TJ) of endothelial cells between blood circulation and brain tissue. It is highly important to develop novel in vitro BBB models to investigate breast cancer metastasis to the brain to facilitate the screening of chemotherapeutic agents against it. We herein report the development of gelatin methacryloyl (GelMA) modified transwell insert based BBB model composed of endothelial and astrocyte cell layers for testing the efficacy of anti-metastatic agents against breast cancer metastasis to the brain. We characterized the developed model for the morphology and in vitro breast cancer cell migration. Furthermore, we investigated the effect of cisplatin, a widely used chemotherapeutic agent, on the migration of metastatic breast cancer cells using the model. Our results showed that breast cancer cells migrate across the developed BBB model. Cisplatin treatment inhibited the migration of cancer cells across the model. Findings of this study suggest that our BBB model can be used as a suitable tool to investigate breast cancer-associated brain metastasis and to identify suitable therapeutic agents against this.
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Affiliation(s)
- Robin Augustine
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha, Qatar.,Biomedical Research Center (BRC), Qatar University, Doha, Qatar
| | - Alap Ali Zahid
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha, Qatar.,Biomedical Research Center (BRC), Qatar University, Doha, Qatar
| | - Fatima Mraiche
- College of Pharmacy, QU Health, Qatar University, Doha, Qatar
| | - Khurshid Alam
- Department of Mechanical and Industrial Engineering, College of Engineering, Sultan Qaboos University, Sultanate of Oman
| | - Ala-Eddin Al Moustafa
- Biomedical Research Center (BRC), Qatar University, Doha, Qatar.,College of Medicine, QU Health, Qatar University, Doha, Qatar
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha, Qatar.,Biomedical Research Center (BRC), Qatar University, Doha, Qatar
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10
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Shao Z, Guagliardo P, Jiang H, Wang WX. Intra- and Intercellular Silver Nanoparticle Translocation and Transformation in Oyster Gill Filaments: Coupling Nanoscale Secondary Ion Mass Spectrometry and Dual Stable Isotope Tracing Study. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:433-446. [PMID: 33325689 DOI: 10.1021/acs.est.0c04621] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The extensive application of silver nanoparticles (AgNPs) requires a full examination of their biological impacts, especially in aquatic systems where AgNPs are likely to end up. Despite numerous toxicity studies from molecular to individual levels, it is still a daunting challenge to achieve in situ subcellular imaging of Ag and to determine the sites of AgNP interaction with organelles or macromolecules simultaneously. Here, by coupling high-resolution nanoscale secondary ion mass spectrometry elemental mapping with scanning electron microscopy ultrastructural characterization, we successfully visualized the subcellular localization and the potential toxicity effects of AgNPs in the oyster gill filaments. The stable isotope tracing method was also adopted to investigate the respective uptake and transport mechanisms of differently labeled 109AgNPs and 107Ag+ ions. 109Ag hotspots were colocalized with endosomes or lysosomes, proving an endocytosis-based entry of AgNPs which passed through the barrier of oyster gill epithelium. These 109Ag hotspots showed a strong colocalization with 32S-. For the first time, we provided visualized evidence of AgNP-induced autophagy in the oyster gill cells. We further identified two categories of hemocytes (blood cells) and illustrated their roles in AgNP transport and sequestration. The integration of morphological and functional aspects of Ag subcellular distribution in different target cells suggested that oysters were equipped with a specialized endolysosomal (epithelial cells) or phagolysosomal system (hemocytes) in regulating the cellular process of AgNPs, during which the lysosome was the most involved organelle and sulfur was the most relevant macronutrient element. This study highlighted not only the intracellular but also the intercellular AgNP translocation and transformation, providing important subcellular imaging of silver and reliable methodology regarding bio-nano interactions in natural environments.
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Affiliation(s)
- Zishuang Shao
- Department of Ocean Science and Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Paul Guagliardo
- Centre for Microscopy, Characterisation and Analysis, University of Western Australia, Perth, Western Australia 6009, Australia
| | - Haibo Jiang
- School of Molecular Sciences, University of Western Australia, Perth, Western Australia 6009, Australia
| | - Wen-Xiong Wang
- Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
- School of Energy and Environment, State Key Laboratory of Marine Pollution, and Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), City University of Hong Kong, Kowloon, Hong Kong, China
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11
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Mao F, Wong NK, Lin Y, Zhang X, Liu K, Huang M, Xu D, Xiang Z, Li J, Zhang Y, Yu Z. Transcriptomic Evidence Reveals the Molecular Basis for Functional Differentiation of Hemocytes in a Marine Invertebrate, Crassostrea gigas. Front Immunol 2020; 11:911. [PMID: 32536915 PMCID: PMC7269103 DOI: 10.3389/fimmu.2020.00911] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 04/20/2020] [Indexed: 12/24/2022] Open
Abstract
Hemocytes play unequivocally central roles in host immune defense of bivalve mollusks, though the exact mechanisms underlying their functional differentiation are only partially understood. To this end, granulocytes and hyalinocytes were sorted via flow cytometry from hemocytes of the Pacific oyster Crassostrea gigas, and consequently quantitative transcriptomic analysis revealed a striking array of differentially expressed genes (DEGs), which were globally upregulated in granulocytes, dedicating to functional differentiation among oyster hemocytes. Our network of DEGs illustrated actively engaged signaling pathways, with Cdc42/Cdc42l being a core regulator of pathway network, which was validated by a dramatically reduced capacity for hemocyte phagocytosis in the presence of Cdc42 inhibitors. Additionally, a number of transcription factors were identified among DEGs, including ELK, HELT, and Fos, which were predominantly expressed in granulocytes. The AP-1 transcription factor Fos was confirmed to facilitate functional differentiation of hemocytes in an assay on binding to target genes by the AP-1 binding site, consistent with downstream phagocytosis and ROS production. Importantly, Cdc42/Cdc42l were also regulated by the expression of Fos, providing a possible regulatory mechanism-guided hemocyte functional differentiation. Findings in this study have bridged a knowledge gap on the mechanistic underpinnings of functional differentiation of hemocytes in a marine invertebrate C. gigas, which promise to facilitate research on the evolution of immune defense and functional differentiation of phagocyte in higher-order and more recent phyla.
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Affiliation(s)
- Fan Mao
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
| | - Nai-Kei Wong
- Department of Infectious Diseases, Shenzhen Third People's Hospital, The Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen, China
| | - Yue Lin
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
| | - Xiangyu Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
| | - Kunna Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
| | - Minwei Huang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
| | - Duo Xu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
| | - Zhiming Xiang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
| | - Jun Li
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
| | - Yang Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
| | - Ziniu Yu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
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12
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Hernández-Méndez LS, Castro-Longoria E, Araujo-Palomares CL, García-Esquivel Z, Castellanos-Martínez S. Hemocyte cell types of the Cortes Geoduck, Panopea globosa (Dall 1898), from the Gulf of California, Mexico. FISH & SHELLFISH IMMUNOLOGY 2020; 100:230-237. [PMID: 32169664 DOI: 10.1016/j.fsi.2020.03.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 03/03/2020] [Accepted: 03/05/2020] [Indexed: 06/10/2023]
Abstract
The geoduck Panopea globosa is an endemic and economic valuable species from the Mexican Northwest coast whose biology has been little studied. No information exists about their hemocytes to date, which is highly important to assess the welfare of wild and cultured organisms. In this study, hemocytes of adult P. globosa were characterized at the morphological, ultrastructural and functional level. The mean number of hemocytes in the hemolymph of P. globosa was 6 × 105 ± 2 × 105 cells mL-1. The cells were identified as granulocytes (Gr) and hyalinocytes (H). The former accounted for 28% of adhered cells in the hemolymph, measured 6-18 μm, showed numerous basophilic granules in the cytoplasm, with round and eccentric nuclei, and a nucleus:cytoplasm ratio of 0.44 ± 0.01. Hyalinocytes were the most abundant cells in the hemolymph of P. globosa (72% adhered cells) and were subdivided, according to their size, in small (Hs) 4-12 μm and large (HL) 6-18 μm. Hyalinocytes were eosinophilic round or ovoid cells with a central or eccentric nucleus, few or no granules in the cytoplasm and similar nucleus:cytoplasm ratio (Hs: 0.63 and HL: 061). Lysosomes and lipids were observed in Gr, while carbohydrates were the most abundant energy substrate in H. Both hemocytic cell types, mainly Gr, were capable to ingest particles and yield superoxide (P > 0.05). The present study shows for the first time the cell types, abundance and immune activities of hemocytes present in the hemolymph of P. globosa. This information provides a useful baseline to carry out further research on the cellular immune response of the clam to potential pathogens or changes in environmental factors.
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Affiliation(s)
- L S Hernández-Méndez
- Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas, Carretera Ensenada-Tijuana No. 3917, Fraccionamiento Playitas, 22860, Ensenada, Baja California, Mexico
| | - E Castro-Longoria
- Departamento de Microbiología, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Ensenada, Baja California, Mexico
| | - C L Araujo-Palomares
- Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas, Carretera Ensenada-Tijuana No. 3917, Fraccionamiento Playitas, 22860, Ensenada, Baja California, Mexico
| | - Z García-Esquivel
- Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas, Carretera Ensenada-Tijuana No. 3917, Fraccionamiento Playitas, 22860, Ensenada, Baja California, Mexico
| | - S Castellanos-Martínez
- Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas, Carretera Ensenada-Tijuana No. 3917, Fraccionamiento Playitas, 22860, Ensenada, Baja California, Mexico.
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13
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Lin Y, Mao F, Wong NK, Zhang X, Liu K, Huang M, Ma H, Xiang Z, Li J, Xiao S, Zhang Y, Yu Z. Phagocyte Transcriptomic Analysis Reveals Focal Adhesion Kinase (FAK) and Heparan Sulfate Proteoglycans (HSPGs) as Major Regulators in Anti-bacterial Defense of Crassostrea hongkongensis. Front Immunol 2020; 11:416. [PMID: 32265912 PMCID: PMC7103635 DOI: 10.3389/fimmu.2020.00416] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 02/24/2020] [Indexed: 11/13/2022] Open
Abstract
Invertebrates generally lack adaptive immunity and compensate for this with highly efficient innate immune machineries such as phagocytosis by hemocytes to eradicate invading pathogens. However, how extrinsically cued hemocytes marshal internal signals to accomplish phagocytosis is not yet fully understood. To this end, we established a facile magnetic cell sorting method to enrich professional phagocytes from hemocytes of the Hong Kong oyster (Crassostrea hongkongensis), an ecologically and commercially valuable marine invertebrate. Transcriptomic analysis on presorted cells shows that phagocytes maintain a remarkable array of differentially expressed genes that distinguish them from non-phagocytes, including 352 significantly upregulated genes and 479 downregulated genes. Pathway annotations reveal that focal adhesion and extracellular matrix–receptor interactions were the most conspicuously enriched pathways in phagocytes. Phagocytosis rate dramatically declined in the presence of an FAK inhibitor, confirming importance of the focal adhesion pathway in regulating phagocytosis. In addition, we also found that heparan sulfate proteoglycan (HSPG) families were lineage-specifically expanded in C. hongkongensis and abundantly expressed in phagocytes. Efficiency of phagocytosis and hemocytes aggregation was markedly reduced upon blockage of endogenous synthesis of HSPGs, thus implicating these proteins as key surface receptors in pathogen recognition and initiation of phagocytosis.
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Affiliation(s)
- Yue Lin
- 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 Science, Guangzhou, China.,University of Chinese Academy of Sciences, Beijing, 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 Science, Guangzhou, China.,Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, China
| | - Nai-Kei Wong
- National Clinical Research Center for Infectious Diseases, Shenzhen Third People's Hospital, The Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen, China
| | - Xiangyu 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 Science, Guangzhou, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Kunna Liu
- 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 Science, Guangzhou, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Minwei Huang
- 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 Science, Guangzhou, China.,Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, 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 Science, Guangzhou, China.,Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, 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 Science, Guangzhou, China.,Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, 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 Science, Guangzhou, China.,Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, 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 Science, Guangzhou, China.,Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, 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 Science, Guangzhou, China.,Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, 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 Science, Guangzhou, China.,Innovation Academy of South China Sea Ecology and Environmental Engineering (ISEE), Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, China
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14
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Cao Y, Yang S, Feng C, Zhan W, Zheng Z, Wang Q, Deng Y, Jiao Y, Du X. Evolution and function analysis of interleukin-17 gene from Pinctada fucata martensii. FISH & SHELLFISH IMMUNOLOGY 2019; 88:102-110. [PMID: 30802631 DOI: 10.1016/j.fsi.2019.02.044] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 02/20/2019] [Accepted: 02/21/2019] [Indexed: 06/09/2023]
Abstract
Interleukin-17 (IL-17) is a proinflammatory cytokine that plays an important role in immune responses. In this study, we identified 57 IL-17 genes from the genomes of six marine invertebrates, including Pinctada fucata martensii, Crassostrea gigas, Lottia gigantea, Capitella teleta, Mizuhopecten yessoensis, and Mytilus galloprovincialis. Phylogenetic analysis showed that all invertebrate IL-17 genes were clustered into one group, implying that invertebrate IL-17 evolved from one common ancestral gene. From the extron-intron analysis, we found many intronless IL-17 genes in mollusks, which may be caused by retroposition. Tissue and development transcriptomic analysis showed that the expression of PmIL-17 was tissue and developmental stage-specific. Moreover, we cloned the full length of the IL-17-2 gene from P. f. martensii (PmIL-17-2) and explored its function in the immune response. The full-length cDNA of PmIL-17-2 is 719 bp, containing an open reading frame of 564 bp, a 5' -untranslated region (UTR) of 31 bp, and a 3' -UTR of 124 bp with a 30 bp poly (A) tail. PmIL-17-2 had a strong response to lipopolysaccharide (LPS), indicating that the PmIL-17-2 participates in innate immune responses. In situ hybridization of hemocytes showed that PmIL-17-2 was mainly produced by granulosa cells, and the number of the stained granulosa increased after LPS stimulation. These results lay the foundation for the research of IL-17 family in marine invertebrates.
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Affiliation(s)
- Yanfei Cao
- Fishery College, Guangdong Ocean University, Zhanjiang, 524025, China
| | - Shuai Yang
- Fishery College, Guangdong Ocean University, Zhanjiang, 524025, China
| | - Chuzhang Feng
- Fishery College, Guangdong Ocean University, Zhanjiang, 524025, China
| | - Waner Zhan
- Fishery College, Guangdong Ocean University, Zhanjiang, 524025, China
| | - Zhe Zheng
- Fishery College, Guangdong Ocean University, Zhanjiang, 524025, China
| | - Qingheng Wang
- Fishery College, Guangdong Ocean University, Zhanjiang, 524025, China
| | - Yuewen Deng
- Fishery College, Guangdong Ocean University, Zhanjiang, 524025, China
| | - Yu Jiao
- Fishery College, Guangdong Ocean University, Zhanjiang, 524025, China.
| | - Xiaodong Du
- Fishery College, Guangdong Ocean University, Zhanjiang, 524025, China.
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