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Vicentini M, Calado SLM, Pessati JBK, Perussolo MC, Lirola JR, Marcondes FR, Nascimento ND, Beghetto CL, Vilar MCP, Mela M, Coral LAA, Magalhães VF, Prodocimo V, Cestari MM, Silva de Assis HC. Temperature rise and its influence on the toxic effects caused by cyanotoxins in a neotropical catfish. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 353:124166. [PMID: 38754694 DOI: 10.1016/j.envpol.2024.124166] [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: 02/07/2024] [Revised: 05/12/2024] [Accepted: 05/13/2024] [Indexed: 05/18/2024]
Abstract
Potentially toxic cyanobacterial blooms (cyanoHABs) have become a problem in public water supply reservoirs. Temperature rise caused by climate change can increase the frequency and intensity of blooms, which may influence the cyanotoxins concentration in the environment. This study aimed to evaluate the effect of the temperature on the responses of a Neotropical catfish exposed to a neurotoxin-rich cyanobacterial crude extract (Raphidiopsis raciborskii T3). Juveniles of Rhamdia quelen were exposed to four treatments, based on study data: control at 25 °C (C25), control at 30 °C (C30), crude extract equivalent to 105 cells.mL-l of R. raciborskii at 25 °C (CE25) and 30 °C (CE30). After 96 h of exposure, the fish were anesthetized and blood was taken. After euthanasia, the gill, posterior kidney, brain, muscle, liver and gonad were sampled for hematological, biochemical, genotoxic and histopathological biomarker analysis. Liver was sampled for proteomic analysis for identification of proteins related to energy production. Water samples were collected at the beginning and the end of the experiment for neurotoxins quantification. Different parameters in both males and females were altered at CE25, evidencing the effects of neurotoxins in freshwater fish. At CE30, a water warming scenario, more effects were observed in females than at 25 °C, such as activation of saxitoxin metabolism pathway and genotoxicity. More damage to macromolecules was observed in females at the higher temperature, demonstrating that the increase in temperature can aggravate the toxicity of neurotoxins produced by R. raciborskii T3.
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Affiliation(s)
- Maiara Vicentini
- Post Graduation Program in Ecology and Conservation, Federal University of Paraná, Brazil
| | - Sabrina L M Calado
- Post Graduation Program in Ecology and Conservation, Federal University of Paraná, Brazil
| | | | - Maiara C Perussolo
- Pharmacology Department, Federal University of Paraná, Brazil; Pelé Pequeno Príncipe Research Institute, Brazil
| | | | | | | | - Camila L Beghetto
- Chemistry and Biology Department, Federal University of Technology - Paraná, Brazil
| | - Mauro C P Vilar
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Brazil
| | - Maritana Mela
- Cell Biology Department, Federal University of Paraná, Brazil
| | - Lucila A A Coral
- Chemistry and Biology Department, Federal University of Technology - Paraná, Brazil
| | - Valéria F Magalhães
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Brazil
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Souza RP, Pimentel VD, de Sousa RWR, Sena EP, da Silva ACA, Dittz D, Ferreira PMP, de Oliveira AP. Non-clinical investigations about cytotoxic and anti-platelet activities of gamma-terpinene. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03173-w. [PMID: 38801455 DOI: 10.1007/s00210-024-03173-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Accepted: 05/18/2024] [Indexed: 05/29/2024]
Abstract
Gamma-terpinene (γ-TPN) is a cyclohexane monoterpene isolated from plant essential oils, such as tea tree (Melaleuca alternifolia), oregano (Origanum vulgare), rosemary (Rosmarinus officinalis L.), thyme (Thymus vulgaris Marchand), and eucalyptus (Eucalyptus sp.). Terpenes are widely studied molecules pharmacologically active on the cardiovascular system, hemostasis, and antioxidant actions. Herein, it was investigated the cytotoxic and antiplatelet activity of γ-TPN using different non-clinical laboratory models. For in silico evaluation, the PreADMET, SwissADME, and SwissTargetPrediction softwares were used. Molecular docking was performed using the AutoDockVina and BIOVIA Discovery Studio databases. The cytotoxicity of γ-TPN was analyzed by the MTT assay upon normal murine endothelial SVEC4-10 and fibroblast L-929 cells. Platelet aggregation was evaluated with platelet-rich (PRP) and platelet-poor (PPP) plasma from spontaneously hypertensive rats (SHR), in addition to SVEC4-10 cells pre-incubated with γ-TPN (50, 100, and 200 µM) for 24 h. SHR animals were pre-treated by gavage with γ-TPN for 7 days and divided into four groups (negative control, 25, 50, and 100 mg/kg). Blood samples were collected to measure nitrite using the Griess reagent. Gamma-TPN proved to be quite lipid-soluble (Log P = +4.50), with a qualified profile of similarity to the drug, good bioavailability, and adequate pharmacokinetics. It exhibited affinity mainly for the P2Y12 receptor (6.450 ± 0.232 Kcal/mol), moderate cytotoxicity for L-929 (CC50 = 333.3 µM) and SVEC 4-10 (CC50 = 366.7 µM) cells. The presence of γ-TPN in SVEC 4-10 cells was also able to reduce platelet aggregation by 51.57 and 44.20% at lower concentrations (50 and 100 µM, respectively). Then, γ-TPN has good affinity with purinergic receptors and an effect on the reversal of platelet aggregation and oxidative stress, being promising and safe for therapeutic targets and subsequent studies on the control of thromboembolic diseases.
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Affiliation(s)
- Railson Pereira Souza
- Postgraduate Program in Pharmacology, Center for Research on Medicinal Plants (NPPM), Federal University of Piauí, Teresina, 64049-550, Brazil
- Laboratory of Cardiovascular Pharmacology (Lafac), Federal University of Piauí, Teresina, 64049-550, Brazil
| | - Vinícius Duarte Pimentel
- Postgraduate Program in Pharmacology, Center for Research on Medicinal Plants (NPPM), Federal University of Piauí, Teresina, 64049-550, Brazil
| | - Rayran Walter Ramos de Sousa
- Department of Biophysics and Physiology, Federal University of Piauí, Teresina, 64049-550, Brazil
- Laboratory of Experimental Cancerology (LabCancer), Federal University of Piauí, Teresina, 64049-550, Brazil
| | - Emerson Portela Sena
- Postgraduate Program in Pharmacology, Center for Research on Medicinal Plants (NPPM), Federal University of Piauí, Teresina, 64049-550, Brazil
- Laboratory of Cardiovascular Pharmacology (Lafac), Federal University of Piauí, Teresina, 64049-550, Brazil
| | - Alda Cássia Alves da Silva
- Postgraduate Program in Pharmacology, Center for Research on Medicinal Plants (NPPM), Federal University of Piauí, Teresina, 64049-550, Brazil
| | - Dalton Dittz
- Postgraduate Program in Pharmacology, Center for Research on Medicinal Plants (NPPM), Federal University of Piauí, Teresina, 64049-550, Brazil
- Laboratory of Antineoplastic Pharmacology (Lafan), Department of Biochemistry and Pharmacology, Federal University of Piauí, Teresina, 64049-550, Brazil
| | - Paulo Michel Pinheiro Ferreira
- Department of Biophysics and Physiology, Federal University of Piauí, Teresina, 64049-550, Brazil
- Laboratory of Experimental Cancerology (LabCancer), Federal University of Piauí, Teresina, 64049-550, Brazil
| | - Aldeídia Pereira de Oliveira
- Postgraduate Program in Pharmacology, Center for Research on Medicinal Plants (NPPM), Federal University of Piauí, Teresina, 64049-550, Brazil.
- Laboratory of Cardiovascular Pharmacology (Lafac), Federal University of Piauí, Teresina, 64049-550, Brazil.
- Department of Biophysics and Physiology, Federal University of Piauí, Teresina, 64049-550, Brazil.
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Carnicero B, Fuentes R, Sanhueza N, Mattos H, Aguirre-Campos C, Contreras D, Troncoso E, Henríquez JP, Boltaña S. Sublethal neurotoxicity of saxitoxin in early zebrafish development: Impact on sensorimotor function and neurotransmission systems. Heliyon 2024; 10:e27874. [PMID: 38545180 PMCID: PMC10966597 DOI: 10.1016/j.heliyon.2024.e27874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 02/27/2024] [Accepted: 03/07/2024] [Indexed: 05/03/2024] Open
Abstract
Saxitoxin (STX) represents a marine toxin of significant concern due to its deleterious implications for aquatic ecosystems and public food safety. As a potent paralytic agent, the role of STX in obstructing voltage-gated sodium channels (VGSCs) is well-characterized. Yet, the mechanistic details underlying its low-dose toxicity remain largely enigmatic. In the current study, zebrafish embryos and larvae were subjected to subchronic exposure of graded STX concentrations (0, 1, 10, and 100 μg/L) until the 7th day post-fertilization. A tactile stimulus-based assay was employed to evaluate potential behavioral perturbations resulting from STX exposure. Both behavioral and transcription level analyses unveiled a compromised tactile response, which was found to be associated with a notable upregulation in the mRNA of two distinct VGSC isoforms, specifically the scn8aa/ab and scn1Laa/ab transcripts, even at the minimal STX dose. Notably, exposure to this lowest STX concentration also resulted in alterations in the transcriptional patterns of pivotal genes for cholinergic and GABAergic pathways, including ache and gabra1. Furthermore, STX induced a marked decrease in the levels of the neurotransmitter GABA. Our findings underscore that prolonged low-dose STX exposure during early development can significantly compromise the tactile response behavior in zebrafish. This study reveals that chronic low-dose STX exposure of developing zebrafish alters neurotransmission pathways that converge on altered tactile behavior.
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Affiliation(s)
- Beatriz Carnicero
- Facultad de Ciencias Naturales y Oceanográficas, Departamento de Oceanografía, Centro de Biotecnología, ThermoFish Lab, Universidad de Concepción, 4030000, Concepción, Chile
| | - Ricardo Fuentes
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile
| | - Nataly Sanhueza
- Facultad de Ciencias Naturales y Oceanográficas, Departamento de Oceanografía, Centro de Biotecnología, ThermoFish Lab, Universidad de Concepción, 4030000, Concepción, Chile
| | - Humberto Mattos
- Facultad de Ciencias Naturales y Oceanográficas, Departamento de Oceanografía, Centro de Biotecnología, ThermoFish Lab, Universidad de Concepción, 4030000, Concepción, Chile
| | - Constanza Aguirre-Campos
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile
| | - David Contreras
- Biotechnology Center, Renewable Resources Laboratory, Universidad de Concepción, Concepción, 4030000, Chile
| | - Eduardo Troncoso
- Biotechnology Center, Renewable Resources Laboratory, Universidad de Concepción, Concepción, 4030000, Chile
| | - Juan Pablo Henríquez
- Neuromuscular Studies Lab (NeSt Lab), Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
| | - Sebastián Boltaña
- Facultad de Ciencias Naturales y Oceanográficas, Departamento de Oceanografía, Centro de Biotecnología, ThermoFish Lab, Universidad de Concepción, 4030000, Concepción, Chile
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Yu Y, Liu J, Zhu J, Lei M, Huang C, Xu H, Liu Z, Wang P. The interfacial interaction between typical microplastics and Pb 2+ and their combined toxicity to Chlorella pyrenoidosa. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170591. [PMID: 38309345 DOI: 10.1016/j.scitotenv.2024.170591] [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: 11/13/2023] [Revised: 01/12/2024] [Accepted: 01/29/2024] [Indexed: 02/05/2024]
Abstract
Microplastics (MPs), a new type of pollutant, have attracted much attention worldwide. MPs are often complexed with other pollutants such as heavy metals, resulting in combined toxicity to organisms in the environment. Studies on the combined toxicity of MPs and heavy metals have usually focused on the marine, while on the freshwater are lacking. In order to understand the combined toxic effects of MPs and heavy metals in the freshwater, five typical MPs (PVC, PE, PP, PS, PET) were selected to investigate the adsorption characteristics of MPs to Pb2+ before and after the MPs aging by ultraviolet (UV) irradiation through static adsorption tests. The results showed that UV aging enhanced adsorption of Pb2+ by MPs. It is noteworthy that MPs-PET had the highest adsorption capacity for Pb2+, and the interaction between MPs-PET and Pb2+ was the strongest. We specifically selected MPs-PET to study its combined toxicity with Pb2+ to Chlorella pyrenoidosa. In the combined toxicity test, MPs-PET and Pb2+ had significant toxic effects on Chlorella pyrenoidosa in the individual exposure, and the toxicity of individual Pb2+ exposure was greater than that of individual MPs-PET exposure. In the combined exposure, when MPs-PET and Pb2+ without adsorption (MPs-PET/Pb2+), MPs-PET and Pb2+ had a synergistic effect, which would produce strong physical and chemical stress on Chlorella pyrenoidosa simultaneously, and the toxic effect was the most significant. After the adsorption of MPs-PET and Pb2+ (MPs-PET@Pb2+), the concentration and activity of Pb2+ decreased due to the adsorption and fixation of MPs-PET, and the chemical stress on Chlorella pyrenoidosa was reduced, but the physical stress of MPs-PET still existed and posed a serious threat to the survival of Chlorella pyrenoidosa. This study has provided a theoretical basis for further assessment of the potential environmental risks of MPs in combination with other pollutants such as heavy metals.
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Affiliation(s)
- Yi Yu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Jiahao Liu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Jian Zhu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.
| | - Mingjing Lei
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Chao Huang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Haiyin Xu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Zhiming Liu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; Department of Biology, Eastern New Mexico University, NM 88130, USA
| | - Ping Wang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
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Wang Y, Song H, Wang S, Cai Q, Chen J. Design, Synthesis, Nematicidal Activity, and Mechanism of Novel Amide Derivatives Containing an 1,2,4-Oxadiazole Moiety. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:128-139. [PMID: 38154095 DOI: 10.1021/acs.jafc.3c04945] [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: 12/30/2023]
Abstract
To discover new nematicides, a series of novel amide derivatives containing 1,2,4-oxadiazole were designed and synthesized. Several compounds showed excellent nematicidal activity. The LC50 values of compounds A7, A18, and A20-A22 against pine wood nematode (Bursaphelenchus xylophilus), rice stem nematode (Aphelenchoides besseyi), and sweet potato stem nematode (Ditylenchus destructor) were 1.39-3.09 mg/L, which were significantly better than the control nematicide tioxazafen (106, 49.0, and 75.0 mg/L, respectively). Compound A7 had an outstanding inhibitory effect on nematode feeding, reproductive ability, and egg hatching. Compound A7 effectively promoted the oxidative stress of nematodes and caused intestinal damage to nematodes. Compound A7 significantly inhibited the activity of succinate dehydrogenase (SDH) in nematodes, leading to blockage of electron transfer in the respiratory chain and thereby hindering the synthesis of adenosine triphosphate (ATP), which consequently affects the entire oxidative phosphorylation process to finally cause nematode death. Therefore, compound A7 can be used as a potential SDH inhibitor in nematicide applications.
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Affiliation(s)
- Yu Wang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Hongyi Song
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Sheng Wang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Qingfeng Cai
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Jixiang Chen
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China
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Guinle C, Núñez-Vázquez EJ, Fernández-Herrera LJ, Corona-Rojas DA, Tovar-Ramírez D. Toxicogenomic Effects of Dissolved Saxitoxin on the Early Life Stages of the Longfin Yellowtail ( Seriola rivoliana). Mar Drugs 2023; 21:597. [PMID: 37999421 PMCID: PMC10671919 DOI: 10.3390/md21110597] [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: 08/30/2023] [Revised: 11/09/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023] Open
Abstract
Harmful algal blooms (HABs) can produce a variety of noxious effects and, in some cases, the massive mortality of wild and farmed marine organisms. Some HAB species produce toxins that are released into seawater or transferred via food webs (particulate toxin fraction). The objective of the present study was to identify the toxicological effects of subacute exposure to saxitoxin (STX) during embryonic and early larval stages in Seriola rivoliana. Eggs were exposed to dissolved 19 STX (100 μg L-1). The toxic effects of STX were evaluated via the hatching percentage, the activity of three enzymes (protein and alkaline phosphatases and peroxidase), and the expression of four genes (HSF2, Nav1.4b, PPRC1, and DUSP8). A low hatching percentage (less than 5%) was observed in 44 hpf (hours post fertilization) embryos exposed to STX compared to 71% in the unexposed control. At this STX concentration, no oxidative stress in the embryos was evident. However, STX induced the expression of the NaV1.4 channel α-subunit (NaV1.4b), which is the primary target of this toxin. Our results revealed the overexpression of all four candidate genes in STX-intoxicated lecithotrophic larvae, reflecting the activation of diverse cellular processes involved in stress responses (HSF2), lipid metabolism (PPRC1), and MAP kinase signaling pathways associated with cell proliferation and differentiation (DUSP8). The effects of STX were more pronounced in young larvae than in embryos, indicating a stage-specific sensitivity to the toxin.
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Affiliation(s)
- Colleen Guinle
- Centro de Investigaciones Biológicas del Noroeste, Laboratorio de Fisiología Comparada y Genómica Funcional, Av. Instituto Politécnico Nacional 195 Playa Palo de Santa Rita, La Paz 23096, Mexico; (C.G.); (D.A.C.-R.)
| | - Erick Julián Núñez-Vázquez
- Centro de Investigaciones Biológicas del Noroeste, Laboratorio de Toxinas Marinas y Aminoácidos, Av. Instituto Politécnico Nacional 195 Playa Palo de Santa Rita, La Paz 23096, Mexico;
| | - Leyberth José Fernández-Herrera
- Centro de Investigaciones Biológicas del Noroeste, Laboratorio de Toxinas Marinas y Aminoácidos, Av. Instituto Politécnico Nacional 195 Playa Palo de Santa Rita, La Paz 23096, Mexico;
| | - Daniela Alejandra Corona-Rojas
- Centro de Investigaciones Biológicas del Noroeste, Laboratorio de Fisiología Comparada y Genómica Funcional, Av. Instituto Politécnico Nacional 195 Playa Palo de Santa Rita, La Paz 23096, Mexico; (C.G.); (D.A.C.-R.)
| | - Dariel Tovar-Ramírez
- Centro de Investigaciones Biológicas del Noroeste, Laboratorio de Fisiología Comparada y Genómica Funcional, Av. Instituto Politécnico Nacional 195 Playa Palo de Santa Rita, La Paz 23096, Mexico; (C.G.); (D.A.C.-R.)
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Pinto A, Botelho MJ, Churro C, Asselman J, Pereira P, Pereira JL. A review on aquatic toxins - Do we really know it all regarding the environmental risk posed by phytoplankton neurotoxins? JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 345:118769. [PMID: 37597370 DOI: 10.1016/j.jenvman.2023.118769] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/24/2023] [Accepted: 08/09/2023] [Indexed: 08/21/2023]
Abstract
Aquatic toxins are potent natural toxins produced by certain cyanobacteria and marine algae species during harmful cyanobacterial and algal blooms (CyanoHABs and HABs, respectively). These harmful bloom events and the toxins produced during these events are a human and environmental health concern worldwide, with occurrence, frequency and severity of CyanoHABs and HABs being predicted to keep increasing due to ongoing climate change scenarios. These contexts, as well as human health consequences of some toxins produced during bloom events have been thoroughly reviewed before. Conversely, the wider picture that includes the non-human biota in the assessment of noxious effects of toxins is much less covered in the literature and barely covered by review works. Despite direct human exposure to aquatic toxins and related deleterious effects being responsible for the majority of the public attention to the blooms' problematic, it constitutes a very limited fraction of the real environmental risk posed by these toxins. The disruption of ecological and trophic interactions caused by these toxins in the aquatic biota building on deleterious effects they may induce in different species is paramount as a modulator of the overall magnitude of the environmental risk potentially involved, thus necessarily constraining the quality and efficiency of the management strategies that should be placed. In this way, this review aims at updating and consolidating current knowledge regarding the adverse effects of aquatic toxins, attempting to going beyond their main toxicity pathways in human and related models' health, i.e., also focusing on ecologically relevant model organisms. For conciseness and considering the severity in terms of documented human health risks as a reference, we restricted the detailed revision work to neurotoxic cyanotoxins and marine toxins. This comprehensive revision of the systemic effects of aquatic neurotoxins provides a broad overview of the exposure and the hazard that these compounds pose to human and environmental health. Regulatory approaches they are given worldwide, as well as (eco)toxicity data available were hence thoroughly reviewed. Critical research gaps were identified particularly regarding (i) the toxic effects other than those typical of the recognized disease/disorder each toxin causes following acute exposure in humans and also in other biota; and (ii) alternative detection tools capable of being early-warning signals for aquatic toxins occurrence and therefore provide better human and environmental safety insurance. Future directions on aquatic toxins research are discussed in face of the existent knowledge, with particular emphasis on the much-needed development and implementation of effective alternative (eco)toxicological biomarkers for these toxins. The wide-spanning approach followed herein will hopefully stimulate future research more broadly addressing the environmental hazardous potential of aquatic toxins.
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Affiliation(s)
- Albano Pinto
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Portugal.
| | - Maria João Botelho
- IPMA, Portuguese Institute for the Sea and Atmosphere, Av. Alfredo Magalhães Ramalho 6, 1495-165, Algés, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - Catarina Churro
- IPMA, Portuguese Institute for the Sea and Atmosphere, Av. Alfredo Magalhães Ramalho 6, 1495-165, Algés, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - Jana Asselman
- Blue Growth Research Lab, Ghent University, Bluebridge Building, Ostend Science Park 1, 8400, Ostend, Belgium
| | - Patrícia Pereira
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Portugal
| | - Joana Luísa Pereira
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Portugal
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Cao Y, Qiu J, Li A, Zhang L, Yan G, Ji Y, Zhang J, Zhao P, Wu X. Occurrence and spatial distribution of paralytic shellfish toxins in seawater and marine organisms in the coastal waters of Qinhuangdao, China. CHEMOSPHERE 2023; 315:137746. [PMID: 36608885 DOI: 10.1016/j.chemosphere.2023.137746] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/31/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
In recent years, paralytic shellfish toxins (PSTs) have been prevalent in the coastal waters of Qinhuangdao, the west coast of the Bohai Sea, China. The content of PSTs in shellfish often exceeded the regulatory limit of 800 μg STX equivalent (eq.) kg-1, which poses a serious threat to human health. In this study, two surveys were conducted in May 2021 and May 2022 to investigate the distribution of PSTs in the coastal waters of Qinhuangdao. Seawater, surface sediment, phytoplankton, zooplankton, and other marine organism samples were collected, and the composition and concentration of PSTs were analyzed by liquid chromatography with tandem mass spectrometry (LC-MS/MS). Results showed that multiple PST components were detected in all seawater samples collected at different depths, mainly including GTX1/4, GTX2/3, dcGTX2, STX and C1/2, and the highest concentration of PSTs reached 244 ng STX eq. L-1. The sediment samples also contained low levels of C1/2 and GTX2/3. Trace amounts of C1/2 and GTX1-4 were detected in phytoplankton and zooplankton. Moreover, all bivalve shellfish samples were found to contain PSTs, and the scallop Azumapecten farreri and the ark clam Anadara kagoshimensis showed relatively high concentrations of 607 and 497 μg STX eq. kg-1, respectively. In addition, low levels of PSTs were also found in some non-traditional PST vectors, including whelk Rapana venosa, octopus Amphioctopus ovulum, goby Ctenotrypauchen chinensis, and greenling Hexagrammos agrammus. Results of this study improve the understanding of the distribution of PSTs in seawater and marine organisms and the potential risk of persistent PSTs in seawater to marine ecosystems and human health.
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Affiliation(s)
- Yadong Cao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Jiangbing Qiu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, Qingdao, 266100, China
| | - Aifeng Li
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, Qingdao, 266100, China.
| | - Lei Zhang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Guowang Yan
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Ying Ji
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Jingrui Zhang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Peng Zhao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Xizhen Wu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
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Lin X, Li Y, Xu G, Tian C, Yu Y. Biodegradable microplastics impact the uptake of Cd in rice: The roles of niche breadth and assembly process. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158222. [PMID: 36028027 DOI: 10.1016/j.scitotenv.2022.158222] [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: 07/11/2022] [Revised: 08/18/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
Biodegradable microplastics (MPs) can impact the accumulation of cadmium (Cd) by plants, however, its mechanisms have not been fully understood. In this study, two biodegradable MPs, polypropylene carbonate (PPC) and polylactic acid (PLA), were used to examine their influences on the uptake of Cd in rice plants. Results showed that PPC significantly reduced the accumulation of Cd in rice root and aerial part, whereas PLA increased the Cd concentrations in rice root. The random forest analysis revealed that the bacterial biomarkers enriched by two MPs were different at genus level. Niche breadths were significantly reduced under Cd stress, and PPC alleviated this environmental pressure for entire bacterial community, whereas PLA reduced the niche breadth for whole community and abundant taxa, which was further verified by co-occurrence network and normalized stochasticity ratio model. The abundant taxa of group PPC were primarily governed by deterministic process while rare taxa were more driven by stochastic process. Structural equation model and Mantel analysis identified that the niche breadth imposed a strong selection on Cd accumulation after co-exposure. This study reveals the underlying mechanism of assembly process and niche breadth of rice rhizosphere microbiome on Cd accumulation by rice plants.
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Affiliation(s)
- Xiaolong Lin
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanjun Li
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guanghui Xu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Chunjie Tian
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Yong Yu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China.
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10
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Kang HM, Lee J, Lee YJ, Park Y, Lee E, Shin AY, Han J, Lee HS, Lee JS, Lee KW. Transcriptional and toxic responses to saxitoxin exposure in the marine copepod Tigriopus japonicus. CHEMOSPHERE 2022; 309:136464. [PMID: 36122751 DOI: 10.1016/j.chemosphere.2022.136464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/28/2022] [Accepted: 09/12/2022] [Indexed: 06/15/2023]
Abstract
Saxitoxin (STX) is a highly toxic marine neurotoxin produced by phytoplankton and a growing threat to ecosystems worldwide due to the spread of toxic algae. Although STX is an established sodium channel blocker, the overall profile of transcriptional levels in STX-exposed organisms has yet to be described. Here, we describe a toxicity assay and transcriptome analysis of the copepod Tigriopus japonicus exposed to STX. The half-maximal lethal concentration of STX was 12.35 μM, and a rapid mortality slope was evident at concentrations between 12 and 13 μM. STX induced changes in swimming behavior among the copepods after 10 min of exposure. In transcriptome analysis, gene ontology revealed that the genes involved in nervous system and gene expression were highly enriched. In addition, the congenital neurological disorder and nuclear factor erythroid 2-related factor 2-mediated oxidative stress pathways were identified to be the most significant in network analysis and toxicity pathway analysis, respectively. This study provides valuable information about the effects of STX and related transcriptional responses in T. japonicus.
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Affiliation(s)
- Hye-Min Kang
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, Busan, 49111, South Korea
| | - Jihoon Lee
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, Busan, 49111, South Korea
| | - Yeon-Ju Lee
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, Busan, 49111, South Korea
| | - Yeun Park
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, Busan, 49111, South Korea
| | - Euihyeon Lee
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, Busan, 49111, South Korea
| | - A-Young Shin
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, Busan, 49111, South Korea
| | - Jeonghoon Han
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, Busan, 49111, South Korea
| | - Hyi-Seung Lee
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, Busan, 49111, South Korea
| | - Jong Seok Lee
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, Busan, 49111, South Korea
| | - Kyun-Woo Lee
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, Busan, 49111, South Korea.
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11
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Chen G, Wang M, Zhu P, Wang G, Hu T. Adverse effects of SYP-3343 on zebrafish development via ROS-mediated mitochondrial dysfunction. JOURNAL OF HAZARDOUS MATERIALS 2022; 437:129382. [PMID: 35749898 DOI: 10.1016/j.jhazmat.2022.129382] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 06/01/2022] [Accepted: 06/11/2022] [Indexed: 06/15/2023]
Abstract
As a newly-invented and highly-efficiency strobilurin fungicide, pyraoxystrobin (SYP-3343) has been recognized as a highly poisonous toxin for a variety of aquatic organisms. Nevertheless, the developmental toxicity and potential mechanism of SYP-3343 have not been well-documented. The results showed that SYP-3343 was relatively stable and maintained within the range of 20 % in 24 h, and the LC50 value to embryos at 72 hpf was 17.13 μg/L. The zebrafish embryotoxicity induced by 1, 2, 4, and 8 μg/L SYP-3343 is demonstrated by repressive embryo incubation, enhancive mortality rate, abnormal heart rate, malformed morphological characteristic, and impaired spontaneous coiling, indicating SYP-3343 mostly exerted its toxicity in a dose- and time-dependent manner. Besides SYP-3343 was critically involved in regulating cell cycle, mitochondrial membrane potential, and reactive oxygen species production as well as zebrafish primary cells apoptosis, which can be mitigated using antioxidant N-acetyl-L-cysteine. A significant change occurred in total protein content, the biochemical indices, and antioxidant capacities owing to SYP-3343 exposure. Additionally, SYP-3343 altered the mRNA levels of heart development-, mitochondrial function-, and apoptosis-related genes in zebrafish embryos. These results indicated that SYP-3343 induced apoptosis accompanying reactive oxygen species-initiated mitochondrial dysfunction in zebrafish embryos.
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Affiliation(s)
- Guoliang Chen
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Mingxing Wang
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Panpan Zhu
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Guixue Wang
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Tingzhang Hu
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China.
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12
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Svirčev Z, Chen L, Sántha K, Drobac Backović D, Šušak S, Vulin A, Palanački Malešević T, Codd GA, Meriluoto J. A review and assessment of cyanobacterial toxins as cardiovascular health hazards. Arch Toxicol 2022; 96:2829-2863. [PMID: 35997789 PMCID: PMC9395816 DOI: 10.1007/s00204-022-03354-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 08/02/2022] [Indexed: 12/14/2022]
Abstract
Eutrophicated waters frequently support bloom-forming cyanobacteria, many of which produce potent cyanobacterial toxins (cyanotoxins). Cyanotoxins can cause adverse health effects in a wide range of organisms where the toxins may target the liver, other internal organs, mucous surfaces and the skin and nervous system. This review surveyed more than 100 studies concerning the cardiovascular toxicity of cyanotoxins and related topics. Over 60 studies have described various negative effects on the cardiovascular system by seven major types of cyanotoxins, i.e. the microcystin (MC), nodularin (NOD), cylindrospermopsin (CYN), anatoxin (ATX), guanitoxin (GNTX), saxitoxin (STX) and lyngbyatoxin (LTX) groups. Much of the research was done on rodents and fish using high, acutely toxin concentrations and unnatural exposure routes (such as intraperitoneal injection), and it is thus concluded that the emphasis in future studies should be on oral, chronic exposure of mammalian species at environmentally relevant concentrations. It is also suggested that future in vivo studies are conducted in parallel with studies on cells and tissues. In the light of the presented evidence, it is likely that cyanotoxins do not constitute a major risk to cardiovascular health under ordinary conditions met in everyday life. The risk of illnesses in other organs, in particular the liver, is higher under the same exposure conditions. However, adverse cardiovascular effects can be expected due to indirect effects arising from damage in other organs. In addition to risks related to extraordinary concentrations of the cyanotoxins and atypical exposure routes, chronic exposure together with co-existing diseases could make some of the cyanotoxins more dangerous to cardiovascular health.
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Affiliation(s)
- Zorica Svirčev
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, UNS, Trg Dositeja Obradovića 2, 21000, Novi Sad, Serbia.
- Biochemistry, Faculty of Science and Engineering, Åbo Akademi University, Tykistökatu 6A, 20520, Turku, Finland.
| | - Liang Chen
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, 650500, China
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology (IHB), Chinese Academy of Sciences (CAS), Wuhan, 430072, China
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Faculty of Water Resources and Hydroelectric Engineering, Xi'an University of Technology, Xi'an, 710048, China
| | - Kinga Sántha
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, UNS, Trg Dositeja Obradovića 2, 21000, Novi Sad, Serbia
| | - Damjana Drobac Backović
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, UNS, Trg Dositeja Obradovića 2, 21000, Novi Sad, Serbia
| | - Stamenko Šušak
- University of Novi Sad, Faculty of Medicine, UNS, Hajduk Veljkova 3, 21000, Novi Sad, Serbia
- Institute of Cardiovascular Diseases of Vojvodina, Sremska Kamenica, Serbia
| | - Aleksandra Vulin
- University of Novi Sad, Faculty of Medicine, UNS, Hajduk Veljkova 3, 21000, Novi Sad, Serbia
- Institute of Cardiovascular Diseases of Vojvodina, Sremska Kamenica, Serbia
| | - Tamara Palanački Malešević
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, UNS, Trg Dositeja Obradovića 2, 21000, Novi Sad, Serbia
| | - Geoffrey A Codd
- School of Natural Sciences, University of Stirling, Stirling, FK9 4LA, UK
- School of Life Sciences, University of Dundee, Dundee, DD1 5EH, UK
| | - Jussi Meriluoto
- University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, UNS, Trg Dositeja Obradovića 2, 21000, Novi Sad, Serbia
- Biochemistry, Faculty of Science and Engineering, Åbo Akademi University, Tykistökatu 6A, 20520, Turku, Finland
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13
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Zhu P, Chen G, Liu Y, Wang Q, Wang M, Hu T. Microcystin-leucine arginine exhibits adverse effects on human aortic vascular smooth muscle cells in vitro. Toxicol In Vitro 2022; 84:105450. [PMID: 35905885 DOI: 10.1016/j.tiv.2022.105450] [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: 06/08/2022] [Revised: 07/14/2022] [Accepted: 07/22/2022] [Indexed: 11/18/2022]
Abstract
Microcystin-leucine arginine (MC-LR) is a kind of toxin produced by cyanobacteria, which can do harm to human and livestock health. MC-LR can easily enter tissues and organs through the blood circulation and accumulate in certain target organs. Vessels are prone to contact with MC-LR during growth and development. Previous study had demonstrated that MC-LR had potential vascular toxicity. However, it is not clear whether MC-LR has adverse effects on vascular smooth muscle cells. In this study, we evaluated the cytotoxicity of MC-LR exposure (0.01, 0.05, 0.1, 0.5, and 1 μM) on human aortic vascular smooth muscle cells (HAVSMCs) in vitro. The data showed that MC-LR exposure inhibited the HAVSMC proliferation and migration, induced HAVSMC apoptosis, cytoskeleton destruction, S-phase arrest, mitochondrial transmembrane potential (MMP) loss, and reactive oxygen species (ROS) production. In addition, MC-LR exposure resulted in the imbalance between oxidants and antioxidants, increased the caspase-3 and caspase-9 activities, and down-regulated the gene expressions (integrin β1, Rho, ROCK, MLC). Taken together, MC-LR could induce the generation of ROS in HAVSMCs, leading to apoptosis by the mitochondrial signaling pathway. MC-LR could also induce cytoskeletal disruption by integrin-mediated FAK/ROCK signaling pathway, leading to cell cycle arrest and the inhibition of HAVSMCs proliferation and migration. The current findings facilitate an understanding of the mechanism of MC-LR toxicity involved in angiocardiopathy.
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Affiliation(s)
- Panpan Zhu
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Guoliang Chen
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Yuanli Liu
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Qilong Wang
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Mingxing Wang
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Tingzhang Hu
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China.
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14
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Oxidative Stress and AKT-Associated Angiogenesis in a Zebrafish Model and Its Potential Application for Withanolides. Cells 2022; 11:cells11060961. [PMID: 35326412 PMCID: PMC8946239 DOI: 10.3390/cells11060961] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/06/2022] [Accepted: 03/10/2022] [Indexed: 12/12/2022] Open
Abstract
Oxidative stress and the AKT serine/threonine kinase (AKT) signaling pathway are essential regulators in cellular migration, metastasis, and angiogenesis. More than 300 withanolides were discovered from the plant family Solanaceae, exhibiting diverse functions. Notably, the relationship between oxidative stress, AKT signaling, and angiogenesis in withanolide treatments lacks comprehensive understanding. Here, we summarize connecting evidence related to oxidative stress, AKT signaling, and angiogenesis in the zebrafish model. A convenient vertebrate model monitored the in vivo effects of developmental and tumor xenograft angiogenesis using zebrafish embryos. The oxidative stress and AKT-signaling-modulating abilities of withanolides were highlighted in cancer treatments, which indicated that further assessments of their angiogenesis-modulating potential are necessary in the future. Moreover, targeting AKT for inhibiting AKT and its AKT signaling shows the potential for anti-migration and anti-angiogenesis purposes for future application to withanolides. This particularly holds for investigating the anti-angiogenetic effects mediated by the oxidative stress and AKT signaling pathways in withanolide-based cancer therapy in the future.
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15
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Haque MN, Nam SE, Han YS, Park HS, Rhee JS. Chronic exposure to sublethal concentrations of saxitoxin reduces antioxidant activity and immunity in zebrafish but does not affect reproductive parameters. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 243:106070. [PMID: 34974311 DOI: 10.1016/j.aquatox.2021.106070] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 10/24/2021] [Accepted: 12/24/2021] [Indexed: 06/14/2023]
Abstract
Saxitoxin produced by dinoflagellates and cyanobacteria can be transferred to humans through intoxicated organisms such as fish, but limited research has addressed the adverse effects of this toxin on aquatic organisms. In this study, we measured the potential effects of a 90-day exposure to saxitoxin (0.1 or 1 µg·L - 1) on body weight and length, antioxidant defense system, immunity, sex hormones, and genes involved in associated key metabolic pathways in zebrafish (Danio rerio). Significant impairments in body weight and length were observed in response to 1 µg·L - 1 saxitoxin in both male and female zebrafish. A significant increase in the levels of malondialdehyde, together with decreased enzymatic activities of catalase and superoxide dismutase, was observed in fish of both sexes exposed to 1 µg·L - 1 saxitoxin, indicating the occurrence of lipid peroxidation and oxidative stress. Immune parameters such as alternative complement activity, lysozyme activity, and immunoglobulin content were also significantly reduced. However, exposure of male and female zebrafish to saxitoxin for 90 days did not significantly affect reproductive parameters such as the gonadosomatic index and plasma concentrations of vitellogenin, estradiol, and 11-keto testosterone. Transcriptional responses showed similar trends to those of the biochemical parameters, as genes involved in the antioxidant defense system and immunity were downregulated, whereas the transcription of genes related to reproductive metabolism showed no significant change upon treatment with 1 µg·L - 1 saxitoxin. Our findings indicate that long-term exposure to a sublethal concentration of saxitoxin can inhibit growth through induction of oxidative stress and immunosuppression, while the reproductive parameters of zebrafish are not a main target of this toxin at sublethal concentrations.
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Affiliation(s)
- Md Niamul Haque
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, Republic of Korea; Research Institute of Basic Sciences, Incheon National University, Incheon 22012, Republic of Korea
| | - Sang-Eun Nam
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, Republic of Korea
| | - Young-Seok Han
- Neo Environmental Business Co., Bucheon 14523, Republic of Korea
| | - Hyoung Sook Park
- Department of Song-Do Bio-Environmental Engineering, Incheon Jaeneung University, Incheon 22573, Republic of Korea.
| | - Jae-Sung Rhee
- Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 22012, Republic of Korea; Research Institute of Basic Sciences, Incheon National University, Incheon 22012, Republic of Korea; Yellow Sea Research Institute, Incheon 22012, Republic of Korea.
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16
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Yin M, Wang W, Wei J, Chen X, Chen Q, Chen X, Oyama M. Novel dual-emissive fluorescent immunoassay for synchronous monitoring of okadaic acid and saxitoxin in shellfish. Food Chem 2022; 368:130856. [PMID: 34425333 DOI: 10.1016/j.foodchem.2021.130856] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 08/01/2021] [Accepted: 08/11/2021] [Indexed: 12/22/2022]
Abstract
In this work, we present a novel dual-emissive fluoroimmunoassay for synchronous monitoring of okadaic acid (OA) and saxitoxin (STX) using multicolor fluorescent labels composed of sulfur, phosphorous co-doped graphene quantum dots (S, P-GQDs), and ovalbumin (OVA)-coated gold nanoparticles (OVA-AuNPs). The novel OVA-AuNPs were prepared by the reduction of chloroauric acid under alkaline conditions using OVA as a reducing agent. Both S, P-GQDs and OVA-AuNPs exhibit bright fluorescence, more importantly, a large emission wavelength difference (Δλ = 156 nm) under an excitation of 400 nm and relatively independent fluorescence behavior, which are essential to realizing the dual-signal marks in a directly mixing system. Using a competitive fluorescence-linked immunosorbent assay (cFLISA) format, the dual-emissive cFLISA was successfully utilized to measure OA and STX contents in Alectryonella plicatula (commonly named as fingerprint oyster) and the detection results were in good agreement with the commercial enzyme-linked immunosorbent assay (ELISA) kits.
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Affiliation(s)
- Mingming Yin
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China
| | - Weijie Wang
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China
| | - Jie Wei
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China.
| | - Xiaomei Chen
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China.
| | - Quansheng Chen
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Xi Chen
- State Key Laboratory of Marine Environmental Science, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Munetaka Oyama
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8520, Japan
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Banerjee S, Maity S, Guchhait R, Chatterjee A, Biswas C, Adhikari M, Pramanick K. Toxic effects of cyanotoxins in teleost fish: A comprehensive review. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 240:105971. [PMID: 34560410 DOI: 10.1016/j.aquatox.2021.105971] [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: 12/18/2020] [Revised: 09/03/2021] [Accepted: 09/13/2021] [Indexed: 06/13/2023]
Abstract
The phenomenon of eutrophication leads to the global occurrence of algal blooms. Cyanotoxins as produced by many cyanobacterial species can lead to detrimental effects to the biome due to their stability and potential biomagnification along food webs. Therefore, understanding of the potential risks these toxins pose to the most susceptible organisms is an important prerequisite for ecological risks assessment of cyanobacteria blooms. Fishes are an important component of aquatic ecosystems that are prone to direct exposure to cyanotoxins. However, relatively few investigations have focused on measuring the toxic potentials of cyanotoxins in teleost fishes. This review comprehensively describes the major toxicological impacts (such as hepatotoxicity, neurotoxicity, immune toxicity, reproductive toxicity and cytogenotoxicity) of commonly occurring cyanotoxins in teleost fishes. The present work encompasses recent research progresses with special emphasis on the basic molecular mechanisms by which different cyanotoxins impose their toxicities in teleost fishes. The major research areas, which need to be focused on in future scientific investigations, have also been highlighted. Protein kinase inhibition, transcriptional dysregulation, disruption of redox homeostasis and the induction of apoptotic pathways appear to be the key drivers of the toxicological effects of cyanotoxins in fish. Analyses also showed that the impacts of cyanotoxins on specific reproductive processes are relatively less described in teleosts in comparison to mammalian systems. In fact, as compared to other toxicological effects of cyanotoxins, their reproductive toxicity (such as impacts on oocyte development, maturation and their hormonal regulation) is poorly understood in fish, and thus requires further studies. Furthermore, additonal studies characterizing the molecular mechanisms responsible for the cellular uptake of cyanotoxins need to be investigated.
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Affiliation(s)
- Sambuddha Banerjee
- Integrative Biology Research Unit, Department of Life Sciences, Presidency University, 86/1, College Street, Kolkata 700073, India
| | - Sukhendu Maity
- Integrative Biology Research Unit, Department of Life Sciences, Presidency University, 86/1, College Street, Kolkata 700073, India
| | - Rajkumar Guchhait
- P.G. Department of Zoology, Mahishadal Raj College, Garkamalpur, Purba Medinipur, India
| | - Ankit Chatterjee
- Integrative Biology Research Unit, Department of Life Sciences, Presidency University, 86/1, College Street, Kolkata 700073, India
| | - Chayan Biswas
- Integrative Biology Research Unit, Department of Life Sciences, Presidency University, 86/1, College Street, Kolkata 700073, India
| | - Madhuchhanda Adhikari
- Integrative Biology Research Unit, Department of Life Sciences, Presidency University, 86/1, College Street, Kolkata 700073, India
| | - Kousik Pramanick
- Integrative Biology Research Unit, Department of Life Sciences, Presidency University, 86/1, College Street, Kolkata 700073, India.
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18
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Cyanobacteria, Cyanotoxins, and Neurodegenerative Diseases: Dangerous Liaisons. Int J Mol Sci 2021; 22:ijms22168726. [PMID: 34445429 PMCID: PMC8395864 DOI: 10.3390/ijms22168726] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/03/2021] [Accepted: 08/05/2021] [Indexed: 02/06/2023] Open
Abstract
The prevalence of neurodegenerative disease (ND) is increasing, partly owing to extensions in lifespan, with a larger percentage of members living to an older age, but the ND aetiology and pathogenesis are not fully understood, and effective treatments are still lacking. Neurodegenerative diseases such as Alzheimer’s disease, Parkinson’s disease, and amyotrophic lateral sclerosis are generally thought to progress as a consequence of genetic susceptibility and environmental influences. Up to now, several environmental triggers have been associated with NDs, and recent studies suggest that some cyanotoxins, produced by cyanobacteria and acting through a variety of molecular mechanisms, are highly neurotoxic, although their roles in neuropathy and particularly in NDs are still controversial. In this review, we summarize the most relevant and recent evidence that points at cyanotoxins as environmental triggers in NDs development.
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Xia S, Zhu X, Yan Y, Zhang T, Chen G, Lei D, Wang G. Developmental neurotoxicity of antimony (Sb) in the early life stages of zebrafish. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 218:112308. [PMID: 33975224 DOI: 10.1016/j.ecoenv.2021.112308] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/28/2021] [Accepted: 05/01/2021] [Indexed: 06/12/2023]
Abstract
Accumulating studies have revealed the toxicity of antimony (Sb) to soil-dwelling and aquatic organisms at the individual level. However, little is known about the neurotoxic effects of antimony and its underlying mechanisms. To assess this issue, we investigated the neurotoxicity of antimony (0, 200, 400, 600 and 800 mg/L) in zebrafish embryos. After exposure, zebrafish embryos showed abnormal phenotypes such as a shortened body length, morphological malformations, and weakened heart function. Behavioral experiments indicated that antimony caused neurotoxicity in zebrafish embryos, manifested in a decreased spontaneous movement frequency, delayed response to touch, and reduced movement distance. We also showed that antimony caused a decrease in acetylcholinesterase (AChE) levels in zebrafish embryos, along with decreased expression of neurofunctional markers such as gfap, nestin, mbp, and shha. Additionally, antimony significantly increased reactive oxygen species levels and significantly reduced glutathione (GSH) and superoxide dismutase (SOD) activity. In summary, our findings indicated that antimony can induce developmental toxicity and neurotoxicity in zebrafish embryos by affecting neurotransmitter systems and oxidative stress, thus altering behavior. These outcomes will advance our understanding of antimony-induced neurotoxicity, environmental problems, and health hazards.
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Affiliation(s)
- Siyu Xia
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Xinhong Zhu
- Department of Neurobiology, Southern Medical University, Guangzhou 510515, China
| | - Yuepei Yan
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Tao Zhang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Guoliang Chen
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China
| | - Daoxi Lei
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China.
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, China.
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20
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Gu J, Yan M, Leung PTY, Tian L, Lam VTT, Cheng SH, Lam PKS. Toxicity effects of hydrophilic algal lysates from Coolia tropicalis on marine medaka larvae (Oryzias melastigma). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 234:105787. [PMID: 33677168 DOI: 10.1016/j.aquatox.2021.105787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 02/10/2021] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
Coolia tropicalis is a species of benthic and epiphytic toxic algae, which can produce phycotoxins that intoxicate marine fauna. In this study, the potential toxic effects of C. tropicalis on fish were investigated using larval marine medaka (Oryzias melastigma) as a model to evaluate fish behavior, physiological performance, and stress-induced molecular responses to exposure to two sublethal concentrations (LC10 and LC20) of hydrophilic algal lysates. Exposure to C. tropicalis lysates inhibited swimming activity, activated spontaneous undirected locomotion, altered nerve length ration, and induced early development abnormalities, such as shorter eye diameter, body as well as axon length. Consistent with these abnormalities, changes in the expression of genes associated with apoptosis (CASPASE-3 and BCL-2), the inflammatory response (IL-1β and COX-2), oxidative stress (SOD), and energy metabolism (ACHE and VHA), were also observed. This study advances our understanding of the mechanisms of C. tropicalis toxicity in marine fish in the early life stages and contributes to future ecological risk assessments of toxic benthic dinoflagellates.
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Affiliation(s)
- Jiarui Gu
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China; Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Meng Yan
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China.
| | - Priscilla T Y Leung
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China.
| | - Li Tian
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China; Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
| | - Veronica T T Lam
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China
| | - Shuk Han Cheng
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China; Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, China
| | - Paul K S Lam
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China; Department of Chemistry, City University of Hong Kong, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
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21
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Sandner G, König A, Wallner M, Weghuber J. Alternative model organisms for toxicological fingerprinting of relevant parameters in food and nutrition. Crit Rev Food Sci Nutr 2021; 62:5965-5982. [PMID: 33683153 DOI: 10.1080/10408398.2021.1895060] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
In the field of (food) toxicology, there is a strong trend of replacing animal trials with alternative methods for the assessment of adverse health effects in humans. The replacement of animal trials is not only driven by ethical concerns but also by the number of potential testing substances (food additives, packaging material, contaminants, and toxicants), which is steadily increasing. In vitro 2D cell culture applications in combination with in silico modeling might provide an applicable first response. However, those systems lack accurate predictions of metabolic actions. Thus, alternative in vivo models could fill the gap between cell culture and animal trials. In this review, we highlight relevant studies in the field and spotlight the applicability of alternative models, including C. elegans, D. rerio, Drosophila, HET-CAM and Lab-on-a-chip.
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Affiliation(s)
- Georg Sandner
- Center of Excellence Food Technology and Nutrition, University of Applied Sciences Upper Austria, Wels, Austria
| | - Alice König
- Center of Excellence Food Technology and Nutrition, University of Applied Sciences Upper Austria, Wels, Austria.,FFoQSI GmbH-Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Tulln, Austria
| | - Melanie Wallner
- Center of Excellence Food Technology and Nutrition, University of Applied Sciences Upper Austria, Wels, Austria.,FFoQSI GmbH-Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Tulln, Austria
| | - Julian Weghuber
- Center of Excellence Food Technology and Nutrition, University of Applied Sciences Upper Austria, Wels, Austria.,FFoQSI GmbH-Austrian Competence Centre for Feed and Food Quality, Safety and Innovation, Tulln, Austria
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Jia R, Du J, Cao L, Feng W, He Q, Xu P, Yin G. Immune, inflammatory, autophagic and DNA damage responses to long-term H 2O 2 exposure in different tissues of common carp (Cyprinus carpio). THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 757:143831. [PMID: 33248772 DOI: 10.1016/j.scitotenv.2020.143831] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/26/2020] [Accepted: 11/03/2020] [Indexed: 06/12/2023]
Abstract
Hydrogen peroxide (H2O2) is a stable reactive oxygen species (ROS) in aquatic environment, and high concentration of ambient H2O2 may directly or indirectly affect aquatic animal health. However, the response mechanism of fish to ambient H2O2 has not been well studied yet. Therefore, the aim of the study was to investigate the immune, inflammatory, autophagic and DNA damage responses to long-term H2O2 exposure in different tissues of common carp. The results showed that H2O2 exposure induced a significant immune response, with alterations in the levels of immune parameters including AKP, ACP, LZM, C3, HSP90 and HSP70 in different tissues. The inflammatory response evoked by H2O2 exposure was associated with the activations of TLRs and NF-κB (P65) in the majority of tested tissues. The autophagy process was significantly affected by H2O2 exposure, evidenced by the upregulations of the autophagy-related genes in liver, gills, muscle, intestines, heart and spleen and the downregulations in kidney. Meanwhile, the mRNA level of atm, a primary transducer of DNA damage response, was upregulated in liver, gills, intestines and spleen, and the DNA damage was evidenced by increased 8-OHdG level in intestines after H2O2 exposure. Moreover, cell cycle regulation-related genes, including cyclin A1, B and/or E1, highly expressed in all tested tissues except heart after H2O2 exposure. Interestingly, IBR analysis exhibited that immune, inflammatory, autophagic and DNA damage responses to H2O2 exposure were in a dose-dependent and tissue-specific manner. These data may contribute to understanding H2O2 toxicity for fish and assessing potential risk of H2O2 in aquatic environment.
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Affiliation(s)
- Rui Jia
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; International Joint Research Laboratory for Fish Immunopharmacology, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Jinliang Du
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; International Joint Research Laboratory for Fish Immunopharmacology, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Liping Cao
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; International Joint Research Laboratory for Fish Immunopharmacology, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Wenrong Feng
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; International Joint Research Laboratory for Fish Immunopharmacology, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Qin He
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Pao Xu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; International Joint Research Laboratory for Fish Immunopharmacology, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China.
| | - Guojun Yin
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; International Joint Research Laboratory for Fish Immunopharmacology, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China.
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