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Xing Z, Cai Z, Mi L, Zhang J, Wang J, Chen L, Xu M, Ma B, Tao R, Yang B, Lv X, Wang L, Zhao Y, Liu X, You L. Toxic effects of ZnO NPs on immune response and tissue pathology in Mytilus galloprovincialis. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 276:107102. [PMID: 39288657 DOI: 10.1016/j.aquatox.2024.107102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 09/01/2024] [Accepted: 09/12/2024] [Indexed: 09/19/2024]
Abstract
Nano-zinc oxide (ZnO NPs), as widely used nanomaterials, are inevitably released into aquatic environments, posing potential threats to aquatic organisms. Mytilus galloprovincialis is a bivalve species sensitive to changes in marine ecological environments, but there has been limited research on its toxicity response to ZnO NPs. Therefore, we selected M. galloprovincialis as the research subject and exposed them to 50 µg/L ZnO NPs for 96 h and 30 days to determine the dissolution of ZnO NPs in seawater and their distribution in M. galloprovincialis. The toxicity of ZnO NPs in M. galloprovincialis was then evaluated through gene expression, tissue pathology, and cellular immune response. The results showed that ZnO NPs could enrich Zn in various tissues of the mussel, in the order of gills > hepatopancreas > adductor muscle > mantle. Seven immune-related genes including four heat shock protein genes (HSPA12A, sHSP24.1, sHSP22, TCTP) and three apoptotic genes (Ras, p63 and Bcl-2) were altered to varying degrees. There was a downward trend in lysosomal membrane stability of M. galloprovincialis after exposure to ZnO NPs for 96 h and 30 days, while ROS and apoptosis rates increased significantly. Furthermore, the seven genes, apoptosis, LMS, and ROS were dependent on exposure time, treatment, and their interaction. Histopathological damage included disorganisation of hepatopancreas epithelial cells, gill filament swelling, and contraction of blood sinuses. These results indicated that ZnO NPs exerted toxicity in M. galloprovincialis, affecting the immune system, resulting in changes in the expression of immune-related genes and ultimately leading to histopathological changes. Our research findings could contribute to systematically understand the impact of ZnO NPs on bivalves in aquatic environments and provide a theoretical basis for marine pollution assessment.
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Affiliation(s)
- Zihan Xing
- School of Life Sciences, Ludong University, Yantai, 264025, PR China
| | - Zimin Cai
- School of Life Sciences, Ludong University, Yantai, 264025, PR China
| | - Liuya Mi
- School of Life Sciences, Ludong University, Yantai, 264025, PR China
| | - Juan Zhang
- Shandong Key Laboratory of Marine Ecological Restoration, Shandong Marine Resources and Environment Research Institute, Yantai, 264006, PR China
| | - Jiaying Wang
- Shandong Key Laboratory of Marine Ecological Restoration, Shandong Marine Resources and Environment Research Institute, Yantai, 264006, PR China
| | - Lizhu Chen
- Shandong Key Laboratory of Marine Ecological Restoration, Shandong Marine Resources and Environment Research Institute, Yantai, 264006, PR China
| | - Mingzhe Xu
- School of Life Sciences, Ludong University, Yantai, 264025, PR China
| | - Bangguo Ma
- School of Life Sciences, Ludong University, Yantai, 264025, PR China
| | - Ruijia Tao
- School of Life Sciences, Ludong University, Yantai, 264025, PR China
| | - Bowen Yang
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Xinmeng Lv
- School of Life Sciences, Ludong University, Yantai, 264025, PR China
| | - Lei Wang
- School of Life Sciences, Ludong University, Yantai, 264025, PR China
| | - Yancui Zhao
- School of Life Sciences, Ludong University, Yantai, 264025, PR China
| | - Xiaoli Liu
- School of Life Sciences, Ludong University, Yantai, 264025, PR China.
| | - Liping You
- Shandong Key Laboratory of Marine Ecological Restoration, Shandong Marine Resources and Environment Research Institute, Yantai, 264006, PR China.
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Latchere O, Roman C, Métais I, Perrein-Ettajani H, Mouloud M, Georges D, Feurtet-Mazel A, Gonzalez P, Daffe G, Gigault J, Catrouillet C, Baudrimont M, Châtel A. Toxicity of environmental and polystyrene plastic particles on the bivalve Corbicula fluminea: focus on the molecular responses. ECOTOXICOLOGY (LONDON, ENGLAND) 2024; 33:709-721. [PMID: 38990495 DOI: 10.1007/s10646-024-02769-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/07/2024] [Indexed: 07/12/2024]
Abstract
Among aquatic organisms, filter feeders are particularly exposed to the ingestion of microplastics (MPs) and nanoplastics (NPs). The present study investigates the effect of environmental microplastics (ENV MPs) and nanoplastics (ENV NPs) generated from macro-sized plastic debris collected in the Garonne River (France), and polystyrene NPs (PS NPs) on the freshwater bivalve Corbicula fluminea. Organisms were exposed to plastic particles at three concentrations: 0.008, 10, and 100 μg L-1 for 21 days. Gene expression measurements were conducted in gills and visceral mass at 7 and 21 days to assess the effects of plastic particles on different functions. Our results revealed: (i) an up-regulation of genes, mainly involved in endocytosis, oxidative stress, immunity, apoptosis, and neurotoxicity, at 7 days of exposure for almost all environmental plastic particles and at 21 days of exposure for PS NPs in the gills, (ii) PS NPs at the three concentrations tested and ENV MPs at 0.008 μg L-1 induced strong down-regulation of genes involved in detoxication, oxidative stress, immunity, apoptosis, and neurotoxicity at 7 days of exposure in the visceral mass whereas ENV MPs at 10 and 100 μg L-1 and all ENV NPs induced less pronounced effects, (iii) overall, PS NPs and ENV MPs 0.008 μg L-1 did not trigger the same effects as ENV MPs 10 and 100 μg L-1 and all ENV NPs, either in the gills or the visceral mass at 7 and 21 days of exposure. This study highlighted the need to use MPs and NPs sampled in the environment for future studies as their properties induce different effects at the molecular level to living organisms.
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Affiliation(s)
- Oïhana Latchere
- Université Catholique de l'Ouest, Laboratoire BIOSSE, Angers, France.
| | - Coraline Roman
- Université Catholique de l'Ouest, Laboratoire BIOSSE, Angers, France
| | - Isabelle Métais
- Université Catholique de l'Ouest, Laboratoire BIOSSE, Angers, France
| | | | - Mohammed Mouloud
- Université Catholique de l'Ouest, Laboratoire BIOSSE, Angers, France
| | - Didier Georges
- Université Catholique de l'Ouest, Laboratoire BIOSSE, Angers, France
| | - Agnès Feurtet-Mazel
- UMR EPOC 5805, Equipe Ecotoxicologie Aquatique, Station Marine d'Arcachon, Université de Bordeaux, Arcachon, France
| | - Patrice Gonzalez
- UMR EPOC 5805, Equipe Ecotoxicologie Aquatique, Station Marine d'Arcachon, Université de Bordeaux, Arcachon, France
| | - Guillemine Daffe
- Observatoire Aquitain des Sciences de l'Univers, UAR 2567 POREA Université de Bordeaux, Pessac, France
| | - Julien Gigault
- Département de Biologie, Pavillon Alexandre-Vachon, Université Laval, Québec, QC, Canada
- Univ. Rennes, CNRS, Géosciences Rennes-UMR 6118, Rennes, France
| | - Charlotte Catrouillet
- Univ. Rennes, CNRS, Géosciences Rennes-UMR 6118, Rennes, France
- Institut de Physique du Globe de Paris, CNRS, Université de Paris, Paris, France
| | - Magalie Baudrimont
- UMR EPOC 5805, Equipe Ecotoxicologie Aquatique, Station Marine d'Arcachon, Université de Bordeaux, Arcachon, France
| | - Amélie Châtel
- Université Catholique de l'Ouest, Laboratoire BIOSSE, Angers, France
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Yan M, Chen X, Jiang T, Xue J, Liber K, Liu H, Yang J. Copper induces cytotoxicity in freshwater bivalve Anodonta woodiana hemocytes. CHEMOSPHERE 2024; 362:142595. [PMID: 38866330 DOI: 10.1016/j.chemosphere.2024.142595] [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: 04/08/2024] [Revised: 06/06/2024] [Accepted: 06/10/2024] [Indexed: 06/14/2024]
Abstract
Hemocytes of freshwater bivalves are an important target model for evaluating copper (Cu) toxicity in vitro, with excess Cu causing adverse responses in these organisms. Despite this, the mechanisms underlying cytotoxicity remain poorly understood. The freshwater bivalve Anodonta woodiana, employed as a model organism in freshwater environments, was utilized in this study. Hemocytes of A. woodiana were exposed to various aqueous Cu treatments (0.001, 0.01, 0.1, 1, and 10 mg/L), and a control group (no Cu added) for 3 h to investigate the cytotoxic mechanisms of Cu. The results showed a significant increase in the production of reactive oxygen species in hemocytes of all Cu exposed groups compared to the control (p < 0.05). Remarkably, Cu treatments disrupted the cellular membrane (p < 0.05) but did not induce significant changes in the stability of the lysosomal membrane. Cu targeted the mitochondria, leading to a reduction in mitochondrial membrane potential. Additionally, all Cu treatments significantly increased the degree of DNA damage (p < 0.05). Cellular damage and a significant decline in cell viability were observed when the Cu exposure concentration reached 0.1, 1, and 10 mg/L (p < 0.05). Our study provides new insights into the cytotoxicity mechanisms triggered by Cu in hemocytes of the freshwater bivalve A. woodiana, even under environmentally relevant conditions of 0.01 mg/L exposure.
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Affiliation(s)
- Mingjun Yan
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, China
| | - Xiubao Chen
- Laboratory of Fishery Microchemistry, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Tao Jiang
- Laboratory of Fishery Microchemistry, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Junren Xue
- Laboratory of Fishery Microchemistry, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Karsten Liber
- Toxicology Centre, University of Saskatchewan, 44 Campus Drive, Saskatoon, SK, S7N 5B3, Canada; School of Environment and Sustainability, University of Saskatchewan, 117 Science Place, Saskatoon, SK, S7N 5B3, Canada
| | - Hongbo Liu
- Laboratory of Fishery Microchemistry, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Jian Yang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, China; Laboratory of Fishery Microchemistry, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China.
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Bianco KA, Martini CN, Tejedor MJ, Paredes MG, Kristoff G. Multi-biomarker approach to evaluate the toxicity of chlorpyrifos (active ingredient and a commercial formulation) on different stages of Biomphalaria straminea. Comp Biochem Physiol C Toxicol Pharmacol 2024; 281:109923. [PMID: 38615808 DOI: 10.1016/j.cbpc.2024.109923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 03/15/2024] [Accepted: 04/11/2024] [Indexed: 04/16/2024]
Abstract
Biomphalaria straminea is a freshwater gastropod native to South America and used in toxicological assessments. Our aim was to estimate 48 h-LC50 and sub-chronic effects after the exposure to low concentrations of chlorpyrifos as commercial formulation (CF) and active ingredient (AI) on B. straminea adult, embryos and juveniles. Concentrations between 1 and 5000 μg L-1 were chosen for acute exposures and 0.1 and 1 μg L-1 for the sub-chronic one. After 14 days biochemical parameters, viability and sub-populations of hemocytes, reproductive parameters, embryotoxicity and offspring' survival were studied. Egg masses laid between day 12 and 14 were separated to continue the exposure and the embryos were examined daily. Offspring' survival and morphological changes were registered for 14 days after hatching. 48 h-LC50, NOEC and LOEC were similar between CF and AI, however the CF caused more sub-lethal effects. CF but not the AI decreased carboxylesterases, catalase and the proportion of hyalinocytes with respect to the total hemocytes, and increased superoxide dismutase and the % of granulocytes with pseudopods. Also CF caused embryotoxicity probably due to the increase of embryos' membrane permeability. Acetylcholinesterase, superoxide dismutase, hemocytes sub-populations, the time and rate of hatching and juveniles' survival were the most sensitive biomarkers. We emphasize the importance of the assessment of a battery of biomarkers as a useful tool for toxicity studies including reproduction parameters and immunological responses. Also, we highlight the relevance of incorporating the evaluation of formulations in order to not underestimate the effects of pesticides on the environment.
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Affiliation(s)
- Karina Alesia Bianco
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Laboratorio de Evaluación Ecotoxicológica del Agua Invertebrados Nativos y otros Modelos (EEAINM), Buenos Aires, Argentina; CONICET - Universidad de Buenos Aires, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Buenos Aires, Argentina
| | - Claudia Noemí Martini
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Laboratorio de Evaluación Ecotoxicológica del Agua Invertebrados Nativos y otros Modelos (EEAINM), Buenos Aires, Argentina; CONICET - Universidad de Buenos Aires, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Buenos Aires, Argentina
| | - María José Tejedor
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Laboratorio de Evaluación Ecotoxicológica del Agua Invertebrados Nativos y otros Modelos (EEAINM), Buenos Aires, Argentina
| | - María Gimena Paredes
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Laboratorio de Evaluación Ecotoxicológica del Agua Invertebrados Nativos y otros Modelos (EEAINM), Buenos Aires, Argentina; CONICET - Universidad de Buenos Aires, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Buenos Aires, Argentina
| | - Gisela Kristoff
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Laboratorio de Evaluación Ecotoxicológica del Agua Invertebrados Nativos y otros Modelos (EEAINM), Buenos Aires, Argentina; CONICET - Universidad de Buenos Aires, Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Buenos Aires, Argentina.
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5
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Asnicar D, Fabrello J, Ciscato M, Masiero L, Marin MG, Corami F, Milan M, Bernardini I, Patarnello T, Cecchetto M, Giubilato E, Bettiol C, Semenzin E, Matozzo V. A multibiomarker approach in clams (Ruditapes philippinarum) for a toxicological evaluation of dredged sediments. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 342:123095. [PMID: 38070644 DOI: 10.1016/j.envpol.2023.123095] [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: 08/30/2023] [Revised: 11/02/2023] [Accepted: 12/02/2023] [Indexed: 12/17/2023]
Abstract
The Lagoon of Venice is often dredged for channel maintenance. To avoid harmful consequences to the ecosystem, a proper disposal of bottom sediments requires a preliminary evaluation of its potential toxicity before excavation. Here we evaluated the effects of polluted sediments on clams (Ruditapes philippinarum) using a multibiomarker approach. Bivalves were exposed for 3 and 14 days to five sediment samples collected along a navigation canal between Venice historical centre and the industrial area of Porto Marghera. Immunological, antioxidant, detoxification, and neurotoxicity biomarkers were analysed in haemolymph, gill, and digestive gland. As a control, sediment collected far from pollution sources was used. Two experiments were performed to assess potential seasonal/gametogenic influence in clam sensitivity. A different response of clam biomarkers was observed during the two experiments and among sampling sites. Clams' digestive gland resulted to be the most sensitive tissue analysed showing significant differences among sites in all biomarkers analysed. Greater differences were present due to seasonality rather than exposure. The concentrations of metals and organic pollutants increased from the city centre to the industrial area, highlighting the influence that industrial activities had on the lagoon ecosystem. However, bioaccumulation in clams did not follow the same clear pattern, suggesting low bioavailability of compounds due to relatively high organic matter content. Biomarkers modulation was mainly driven by metals, both present in sediments and bioaccumulated. In comparison, effects of organic pollutants on the biomarkers tested were negligible. Other sources of contamination not investigated (e.g. pesticides) were suggested by neurotoxicity biomarkers alteration.
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Affiliation(s)
- Davide Asnicar
- Department of Biology, University of Padova, Via U. Bassi 58/B, 35131, Padova, Italy; Aquatic Bioscience, Huntsman Marine Science Centre, 1 Lower Campus Road, E5B 2L7, St Andrews, New Brunswick, Canada
| | - Jacopo Fabrello
- Department of Biology, University of Padova, Via U. Bassi 58/B, 35131, Padova, Italy
| | - Maria Ciscato
- Department of Biology, University of Padova, Via U. Bassi 58/B, 35131, Padova, Italy
| | - Luciano Masiero
- Department of Biology, University of Padova, Via U. Bassi 58/B, 35131, Padova, Italy
| | - Maria Gabriella Marin
- Department of Biology, University of Padova, Via U. Bassi 58/B, 35131, Padova, Italy
| | - Fabiana Corami
- Department of Environmental Sciences, Informatics, and Statistics, Ca' Foscari University of Venice, Via Torino, 155, 30172, Venezia-Mestre, Italy; Institute of Polar Sciences, CNR-ISP, Campus Scientifico - Ca' Foscari University of Venice, Via Torino, 155, 30172, Venezia-Mestre, Italy
| | - Massimo Milan
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, Agripolis, 35020, Legnaro, PD, Italy
| | - Ilaria Bernardini
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, Agripolis, 35020, Legnaro, PD, Italy
| | - Tomaso Patarnello
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell'Università 16, Agripolis, 35020, Legnaro, PD, Italy
| | - Martina Cecchetto
- Department of Environmental Sciences, Informatics, and Statistics, Ca' Foscari University of Venice, Via Torino, 155, 30172, Venezia-Mestre, Italy
| | - Elisa Giubilato
- Department of Environmental Sciences, Informatics, and Statistics, Ca' Foscari University of Venice, Via Torino, 155, 30172, Venezia-Mestre, Italy
| | - Cinzia Bettiol
- Department of Environmental Sciences, Informatics, and Statistics, Ca' Foscari University of Venice, Via Torino, 155, 30172, Venezia-Mestre, Italy
| | - Elena Semenzin
- Department of Environmental Sciences, Informatics, and Statistics, Ca' Foscari University of Venice, Via Torino, 155, 30172, Venezia-Mestre, Italy
| | - Valerio Matozzo
- Department of Biology, University of Padova, Via U. Bassi 58/B, 35131, Padova, Italy.
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Zhou Y, Liu W, Jiang H, Chen F, Li Y, Gardea-Torresdey JL, Zhou XX, Yan B. Surface-Charge-Driven Ferroptosis and Mitochondrial Dysfunction Is Involved in Toxicity Diversity in the Marine Bivalve Exposed to Nanoplastics. ACS NANO 2024; 18:2370-2383. [PMID: 38189275 DOI: 10.1021/acsnano.3c10536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Nanoplastics (NPs) pervade daily life, posing serious threats to marine ecosystems. Despite the crucial role that surface charge plays in NP effects, there is a substantial gap in our understanding of how surface charge influences NP toxicity. Herein, by exposing Ruditapes philippinarum (R. philippinarum) to both positively charged NPs (p-NPs) and negatively charged NPs (n-NPs) at environmentally relevant particle number levels for a duration of 35 days, we unequivocally demonstrate that both types of NPs had discernible impacts on the clams depending on their surface charge. Through transcriptomic and proteomic analyses, we unveiled the primary mechanisms behind p-NP toxicity, which stem from induced mitochondrial dysfunction and ferroptosis. In contrast, n-NPs predominantly stimulated innate immune responses, influencing salivary secretion and modulating the complement and coagulation cascades. Furthermore, in vitro tests on clam immune cells confirmed that internalized p-NPs triggered alterations in mitochondrial morphology, a decrease in membrane potential, and the initiation of ferroptosis. Conversely, n-NPs, to a certain extent, moderated the expression of genes related to immune responses, thus mitigating their adverse effects. Taken together, these findings indicate that the differential surface-charge-driven ferroptosis and mitochondrial dysfunction in clams play a critical role in the toxicity profile of NPs, providing an insightful reference for assessing the ecological toxicity associated with NPs.
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Affiliation(s)
- Yanfei Zhou
- Institute of Environmental Research at the Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, People's Republic of China
| | - Wenzhi Liu
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, People's Republic of China
| | - Hao Jiang
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, People's Republic of China
| | - Fengyuan Chen
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Yanping Li
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Jorge L Gardea-Torresdey
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Xiao-Xia Zhou
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, People's Republic of China
| | - Bing Yan
- Institute of Environmental Research at the Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, People's Republic of China
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Luo Y, Wang WX. Lysosomal Cu(I)/Cu(II) Dependence of Antimicrobial Ability of Oyster Hemocytes and Regulation of Phagolysosomal System. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:20219-20227. [PMID: 37955256 DOI: 10.1021/acs.est.3c06627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Copper (Cu) is hyperaccumulated in oyster hemocytes and is an essential trace metal indispensable for diverse innate immune functions. However, the roles of Cu in oyster immune defense are still unclear. In this study, Cu exposure enhanced the phagocytosis of zymosan by increasing the number and length of filopodia, as well as mitochondrial ROS (mitoROS) production mainly in granulocytes, followed by semigranulocytes and agranulocytes. The intracellular calcium level increased to promote the phagosome-lysosome fusion after Cu exposure. The enhancement of phagosomal acidification and mitochondrion-phagosome juxtaposition were also found in granulocytes after Cu exposure. These results indicated that Cu could regulate the phagolysosomal system to enhance the antimicrobial ability of oyster hemocytes with the assistance of mitoROS. Furthermore, Cu(I) and Cu(II) were predominately located in lysosomes, and degranulation may provide a mechanism for exposing Cu to bacteria to prevent their survival and proliferation. Specifically, we showed that the newly formed Cu(I) arising from lysosomal Cu(II) moved to lysosomes and mitochondria in activated hemocytes to induce strong immune responses. The ability of the transformation of Cu(I) from Cu(II) followed granulocytes > semigranlocytes > agranulocytes, indicating that granulocytes played important roles in immune functions of oysters. Our results provided new insights into the understanding of antimicrobial effects of Cu in oyster hemocytes.
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Affiliation(s)
- Yali Luo
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
| | - Wen-Xiong Wang
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong 999077, China
- Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
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8
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Wang XN, Wang ZH, Jordan RW, Jiang SJ, Gu YG. Bioavailability and health risk assessment of Zn and Cd in edible tissues of two typical shellfish species using in vitro gastrointestinal digestion. Food Res Int 2023; 173:113474. [PMID: 37803797 DOI: 10.1016/j.foodres.2023.113474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/27/2023] [Accepted: 09/10/2023] [Indexed: 10/08/2023]
Abstract
Dynamic extraction of edible tissues of Jinjiang oyster (Crassostrea rivularis) and Flower clam (Paphia undulata) was conducted using a fully biomimetic digestion (in vitro) method. The impact of different cooking methods on the bioavailability of Zn and Cd in the edible shellfish tissues was analyzed, and the human health risk of Zn and Cd was evaluated. The results show that the gastric biomimetic extractions of Zn and Cd in unheated samples of C. rivularis and P. undulata were higher than those in the intestinal biomimetic extraction. The extraction patterns of cooked samples were consistent with those of raw samples. The bioavailability of Zn and Cd in cooked samples of C. rivularis was 94.9% and 82.5%, respectively, indicating increased Zn bioavailability but decreased Cd bioavailability compared to the raw samples. The bioavailability of Zn and Cd in cooked samples of P. undulata was 85.1% and 83.0%, respectively, both of which decreased compared to the raw samples. Consumption of C. rivularis can provide 21.0% to 34.2% of the daily required Zn intake, while consumption of P. undulata can provide 3.8% to 6.4%. The intake of Cd from both shellfish species is below the monthly tolerable intake recommended by FAO/WHO. Consuming cooked C. rivularis can increase the intake of Zn and decrease the intake of Cd.
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Affiliation(s)
- Xu-Nuo Wang
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, No. 213, Huadu Avenue East, Guangzhou 510800, China
| | - Zeng-Huan Wang
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, No. 213, Huadu Avenue East, Guangzhou 510800, China
| | - Richard W Jordan
- Faculty of Science, Yamagata University, Yamagata 990-8560, Japan
| | - Shi-Jun Jiang
- College of Oceanography, Hohai University, Nanjing 245700, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, China
| | - Yang-Guang Gu
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Faculty of Science, Yamagata University, Yamagata 990-8560, Japan; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, China; Key Laboratory of Fishery Ecology and Environment, Guangdong Province, Guangzhou 510300, China; Key Laboratory of Open-Sea Fishery Development, Ministry of Agriculture and Rural Affairs, Guangzhou 510300, China.
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Zhu L, Li Y, Qiu L, Chen X, Guo B, Li H, Qi P. Screening of genes encoding proteins that interact with Nrf2: Probing a cDNA library from Mytilus coruscus using a yeast two-hybrid system. FISH & SHELLFISH IMMUNOLOGY 2023; 142:109112. [PMID: 37751644 DOI: 10.1016/j.fsi.2023.109112] [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: 04/21/2023] [Revised: 07/08/2023] [Accepted: 09/22/2023] [Indexed: 09/28/2023]
Abstract
The Nuclear factor Erythroid 2-related factor 2 (Nrf2) is the most important endogenous antioxidant factor in organisms, and it has been demonstrated that it exerts extensive control over the immune response by interacting with crucial innate immunity components directly or indirectly. Although Nrf2 has been widely confirmed to be involved in stress resistance in mammals and some fish, its contribution to mollusks oxidative stress resistance has not frequently been documented. In this investigation, total RNA was taken from the digestive gland of M. coruscus, and a cDNA library was constructed and screened using the GATEWAY recombination technology. The Nrf2 cDNA sequence of M. coruscus was cloned into the pGBKT7 vector to prepare the bait plasmid. Using yeast two-hybrid system, after auxotrophic medium screening, sequencing, and bioinformatics analysis, 13 binding proteins that interacted with Nrf2 were finally identified. They were QM-like protein, 40S ribosomal protein S4 (RPS4), ribosomal protein S2 (RPS2), ribosomal protein L12 (RPL12), EF1-alpha mRNA for elongation factor 1 alpha (eEF1-alpha), ferritin, alpha-amylase, trypsin, vdg3, period clock protein, cyclophilin A isoform 1 (CYP A), serine protease CFSP2, histone variant H2A.Z (H2A.Z). For a better understanding the physiological function of Nrf2 in animals and as a potential target for future research on protein roles in Nrf2 interactions, it is crucial to clarify these protein interactions.
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Affiliation(s)
- Li Zhu
- National Engineering Research Center of Marine Facilities Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, Zhejiang, 316004, China
| | - Yaru Li
- National Engineering Research Center of Marine Facilities Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, Zhejiang, 316004, China
| | - Longmei Qiu
- National Engineering Research Center of Marine Facilities Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, Zhejiang, 316004, China
| | - Xinglu Chen
- National Engineering Research Center of Marine Facilities Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, Zhejiang, 316004, China
| | - Baoying Guo
- National Engineering Research Center of Marine Facilities Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, Zhejiang, 316004, China
| | - Hongfei Li
- National Engineering Research Center of Marine Facilities Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, Zhejiang, 316004, China; Donghai Laboratory, Zhoushan, Zhejiang, 316021, China.
| | - Pengzhi Qi
- National Engineering Research Center of Marine Facilities Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, Zhejiang, 316004, China; Donghai Laboratory, Zhoushan, Zhejiang, 316021, China.
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