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Cunha M, Nardi A, Henriques B, Soares AMVM, Pereira E, Regoli F, Freitas R. The role of the macroalgae Ulva lactuca on the cellular effects of neodymium and mercury in the mussel Mytilus galloprovincialis. CHEMOSPHERE 2024; 358:141908. [PMID: 38615948 DOI: 10.1016/j.chemosphere.2024.141908] [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: 08/25/2023] [Revised: 03/02/2024] [Accepted: 04/03/2024] [Indexed: 04/16/2024]
Abstract
Rare earth elements (REEs) are increasingly being studied mainly due to their economic importance and wide range of applications, but also for their rising environmental concentrations and potential environmental and ecotoxicological impacts. Among REEs, neodymium (Nd) is widely used in lasers, glass additives, and magnets. Currently, NdFeB-based permanent magnets are the most significant components of electronic devices and Nd is used because of its magnetic properties. In addition to REEs, part of the environmental pollution related to electrical and electronic equipment, fluorescent lamps and batteries also comes from mercury (Hg). Since both elements persist in ecosystems and are continuously accumulated by marine organisms, a promising approach for water decontamination has emerged. Through a process known as sorption, live marine macroalgae can be used, especially Ulva lactuca, to accumulate potential toxic elements from the water. Therefore, the present study aimed to evaluate the cellular toxicity of Nd and Hg in Mytilus galloprovincialis, comparing the biochemical effects induced by these elements in the presence or absence of the macroalgae U. lactuca. The results confirmed that Hg was more toxic to mussels than Nd, but also showed the good capability of U. lactuca in preventing the onset of cellular disturbance and homeostasis disruption in M. galloprovincialis by reducing bioavailable Hg levels. Overall, the biochemical parameters evaluated related to metabolism, antioxidant and biotransformation defences, redox balance, and cellular damage, showed that algae could prevent biological effects in mussels exposed to Hg compared to those exposed to Nd. This study contributes to the advancement of knowledge in this field, namely the understanding of the impacts of different elements on bivalves and the crucial role of algae in the protection of other aquatic organisms.
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Affiliation(s)
- Marta Cunha
- Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Alessandro Nardi
- Dipartimento di Scienze Della Vita e Dell'Ambiente, Università Politecnica Delle Marche, Ancona, Italy; NBFC, National Biodiversity Future Center, Palermo 90131, Italy
| | - Bruno Henriques
- Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal; LAQV-REQUIMTE - Associated Laboratory for Green Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Amadeu M V M Soares
- Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal; Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193, Aveiro, Portugal
| | - Eduarda Pereira
- Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal; LAQV-REQUIMTE - Associated Laboratory for Green Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Francesco Regoli
- Dipartimento di Scienze Della Vita e Dell'Ambiente, Università Politecnica Delle Marche, Ancona, Italy; NBFC, National Biodiversity Future Center, Palermo 90131, Italy
| | - Rosa Freitas
- Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal; Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193, Aveiro, Portugal.
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2
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Dettleff P, Toloza C, Fuentes M, Aedo J, Zuloaga R, Estrada JM, Molina A, Valdés JA. Gills de novo assembly reveals oxidative stress, unfolded protein, and immune response on red cusk-eel (Genypterus chilensis) under thermal stress. MARINE ENVIRONMENTAL RESEARCH 2024; 196:106440. [PMID: 38479297 DOI: 10.1016/j.marenvres.2024.106440] [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: 11/17/2023] [Revised: 02/18/2024] [Accepted: 03/07/2024] [Indexed: 03/23/2024]
Abstract
The heat waves on the South Pacific coast could lead to thermal stress in native fish. The red cusk-eel (Genypterus chilensis) is relevant for Chilean artisanal fisheries and aquaculture diversification. This study examined the effect of high-temperature stress in the gills of G. chilensis in control (14 °C) and high-temperature stress (19 °C) conditions. High-temperature stress induces a significant increase in gills cortisol levels. Additionally, oxidative damage was observed in gills (protein carbonylation and lipoperoxidation). RNA-seq data was used to build the first transcriptome assembly of gills in this species (23,656 annotated transcripts). A total of 1138 down-regulated and 1531 up-regulated transcripts were observed in response to high-temperature stress in gills. The enrichment analysis showed immune response and replication enriched processes (on down-regulated transcripts), and processes related to the folding of proteins, endoplasmic reticulum, and transporter activity (on up-regulated transcripts). The present study showed how gills could be affected by high-temperature stress.
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Affiliation(s)
- Phillip Dettleff
- Escuela de Medicina Veterinaria, Facultad de Agronomía y Sistemas Naturales, Facultad de Ciencias Biológicas y Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, 7820436, Chile.
| | - Carla Toloza
- Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, 8370186, Chile
| | - Marcia Fuentes
- Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, 8370186, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), Concepción, 4030000, Chile
| | - Jorge Aedo
- Departamento de Biología y Química, Facultad de Ciencias Básicas, Universidad Católica del Maule, Talca, 3466706, Chile
| | - Rodrigo Zuloaga
- Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, 8370186, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), Concepción, 4030000, Chile
| | - Juan Manuel Estrada
- Centro de Investigación Marina Quintay (CIMARQ), Universidad Andrés Bello, Quintay, 2340000, Chile
| | - Alfredo Molina
- Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, 8370186, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), Concepción, 4030000, Chile
| | - Juan Antonio Valdés
- Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, 8370186, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), Concepción, 4030000, Chile.
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Liu L, Fu J, Tang Q, Wang H, Lin C, Wei L. Combined transcriptomics and metabolomics analysis reveals lipid metabolic disruption in swamp eel (Monopterus albus) under chronic waterborne copper exposure. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 259:106520. [PMID: 37061419 DOI: 10.1016/j.aquatox.2023.106520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 03/21/2023] [Accepted: 04/02/2023] [Indexed: 05/15/2023]
Abstract
Excessive copper can induce many adverse effects although it's an essential trace element in organisms. The effects of copper on the lipid metabolism have aroused increasing attention. This study investigated the liver lipid metabolism in swamp eel (Monopterus albus, M. albus) chronically exposed to 0, 10, 50, and 100 μg/L Cu2+ for 56 days. The results showed that copper increased the contents of triglyceride (TG), total cholesterol (T-CHO), non-esterified fatty acids (NEFA), and lipid droplets. Transcriptomic analysis found 1901 differentially expressed genes (DEGs) and 140 differential alternative splicing (DAS) genes in the 50 μg/L Cu2+ group, and 1787 DEGs and 184 DAS genes in the 100 μg/L Cu2+ group, respectively, which were enriched in peroxisome proliferator-activated receptor (PPAR), adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK), and other signaling pathways. The expression levels of key genes related to PPAR and AMPK signaling pathways were significantly down-regulated after chronic exposure to Cu2+. Meanwhile, metabolomics analysis showed that 52 and 110 differentially expressed metabolites (DEMs) were identified, which were mainly enriched in glycerophospholipids metabolism and steroid synthesis. Moreover, combined analysis of transcriptome and metabolome showed that glycerophospholipid metabolism co-enriched 19 down-regulated DEGs and 4 down-regulated DEMs. Taken together, our results suggested that chronic waterborne copper exposure promoted lipid synthesis, disrupted the metabolic homeostasis of glycerophospholipid, and led to excessive hepatic lipid deposition in M. albus. The combined omics approach enhanced our understanding of copper pollution to lipid metabolism.
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Affiliation(s)
- Lin Liu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi Province 330045, China
| | - Jianping Fu
- College of life sciences, Jiangxi Normal University, Nanchang, Jiangxi Province 330045, China
| | - Qiongying Tang
- Zhejiang Province Key Laboratory of Aquatic Resources Conservation and Development, College of Life Sciences, Huzhou University, Huzhou, Zhejiang Province 313000, China
| | - Hui Wang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi Province 330045, China
| | - Changgao Lin
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi Province 330045, China
| | - Lili Wei
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi Province 330045, China.
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Andreyeva AY, Lobko VV, Gostyukhina OL, Tkachuk AA, Murashova AI, Malakhova LV, Kladchenko ES. Accumulation, functional and antioxidant responses to acute exposure to Di(2-ethylhexyl)phthalate (DEHP) in Mytilus galloprovincialis. MARINE POLLUTION BULLETIN 2023; 191:114923. [PMID: 37058832 DOI: 10.1016/j.marpolbul.2023.114923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 03/14/2023] [Accepted: 04/06/2023] [Indexed: 05/13/2023]
Abstract
Mussels were exposed to di-(2-ethylhexyl) phthalate (DEHP) (0.4 mg L-1 and 4.0 mg L-1) for 24 h and 48 h and its effect on hemocyte cellular composition and spontaneous reactive oxygen production (ROS) levels in hemocytes were evaluated. Exposure to DEHP induced a loss in spontaneous ROS production levels in hemocytes and decreased agranulocyte number in hemolymph. DEHP was found to accumulate in hepatopancreas of mussels and this process was associated with an increase of catalase (CAT) activity after 24 h incubation. At the end of the experimental period (48 h) CAT activity recovered up to control levels. Superoxide dismutase (SOD) activity in hepatopancreas increased following 48 h exposure to DEHP. The results indicated that DEHP could affect hemocyte immune properties, and also cause non-specific general stress-response of the antioxidant complex, which, in turn, was not associated with pronounced oxidative stress.
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Affiliation(s)
- A Yu Andreyeva
- Laboratory of ecological immunology of aquatic organisms, A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Leninsky ave, 38, Moscow 119991, Russia
| | - V V Lobko
- Laboratory of ecological immunology of aquatic organisms, A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Leninsky ave, 38, Moscow 119991, Russia; Department of Radiation and Chemical Biology, A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Leninsky ave, 38, Moscow 119991, Russia
| | - O L Gostyukhina
- Laboratory of ecological immunology of aquatic organisms, A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Leninsky ave, 38, Moscow 119991, Russia
| | - A A Tkachuk
- Laboratory of ecological immunology of aquatic organisms, A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Leninsky ave, 38, Moscow 119991, Russia
| | - A I Murashova
- Laboratory of ecological immunology of aquatic organisms, A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Leninsky ave, 38, Moscow 119991, Russia; Department of Radiation and Chemical Biology, A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Leninsky ave, 38, Moscow 119991, Russia
| | - L V Malakhova
- Department of Radiation and Chemical Biology, A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Leninsky ave, 38, Moscow 119991, Russia
| | - E S Kladchenko
- Laboratory of ecological immunology of aquatic organisms, A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Leninsky ave, 38, Moscow 119991, Russia.
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Arnberg M, Refseth GH, Allan IJ, Benedetti M, Regoli F, Tassara L, Sagerup K, Drivdal M, Nøst OA, Evenset A, Carlsson P. Acute and Sublethal Effects of Deltamethrin Discharges from the Aquaculture Industry on Northern Shrimp ( Pandalus borealis Krøyer, 1838): Dispersal Modeling and Field Investigations. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:3602-3611. [PMID: 36826516 PMCID: PMC9996817 DOI: 10.1021/acs.est.2c07459] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 02/09/2023] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
Pharmaceutical deltamethrin (Alpha Max), used as delousing treatments in aquaculture, has raised concerns due to possible negative impacts on the marine environment. A novel approach combining different scientific disciplines has addressed this topic. Acute (mortality) and sublethal effects (i.e., fitness, neurological, immunological, and oxidative responses) of exposure of northern shrimp (Pandalus borealis) were studied in laboratory experiments. Passive water sampling combined with sediment analyses revealed environmental concentrations. Finally, dispersal modeling was performed to predict environmental concentrations. Ecotoxicological analyses showed mortality in shrimp after 1 h of exposure to 2 ng L-1 (1000-fold dilution of treatment dose), revealing a high sensitivity to deltamethrin. Sublethal effects included induction of acetylcholinesterase and acyl CoA oxidase activities and oxidative impairment, which may be linked to neurotoxic responses. Field concentrations of 10-200 ng L-1 in water (100 m from the pens) and <LOD-0.19 ng g-1 dw in sediment (0-400 m from pens) were measured. Ecotoxicological values were compared with measured and modeled concentrations. They showed that concentrations higher than those causing mortality could be expected up to 4-5 km from point of release, in an area of 6.4 km2, with lethal concentrations remaining up to 35 h in some areas. Hence, the study demonstrates that there is a considerable risk for negative effects on the ecologically and commercially important shrimp.
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Affiliation(s)
- Maj Arnberg
- Akvaplan-niva, Pirsenteret, Havnegata 9, 7010 Trondheim, Norway
| | | | - Ian John Allan
- Norwegian
Institute for Water Research (NIVA), Økernveien 94, 0579 Oslo, Norway
| | - Maura Benedetti
- Department
of Life and Environmental Sciences, Polytechnic
University of Marche, 60 131 Ancona, Italy
- National
Future Biodiversity Center (NFBC), Palermo, Italy
| | - Francesco Regoli
- Department
of Life and Environmental Sciences, Polytechnic
University of Marche, 60 131 Ancona, Italy
- National
Future Biodiversity Center (NFBC), Palermo, Italy
| | - Luca Tassara
- Akvaplan-niva,
Fram Centre, Hjalmar
Johansens Gate 14, 9007 Tromsø, Norway
| | - Kjetil Sagerup
- Akvaplan-niva,
Fram Centre, Hjalmar
Johansens Gate 14, 9007 Tromsø, Norway
| | - Magnus Drivdal
- Akvaplan-niva,
Fram Centre, Hjalmar
Johansens Gate 14, 9007 Tromsø, Norway
| | - Ole Anders Nøst
- Akvaplan-niva, Pirsenteret, Havnegata 9, 7010 Trondheim, Norway
| | - Anita Evenset
- Akvaplan-niva,
Fram Centre, Hjalmar
Johansens Gate 14, 9007 Tromsø, Norway
| | - Pernilla Carlsson
- Norwegian
Institute for Water Research (NIVA), Fram Centre, Hjalmar Johansens Gate 14, 9007 Tromsø, Norway
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6
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Liu J, Cerutti J, Lussier AA, Zhu Y, Smith BJ, Smith ADAC, Dunn EC. Socioeconomic changes predict genome-wide DNA methylation in childhood. Hum Mol Genet 2023; 32:709-719. [PMID: 35899434 PMCID: PMC10365844 DOI: 10.1093/hmg/ddac171] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 07/01/2022] [Accepted: 07/22/2022] [Indexed: 01/25/2023] Open
Abstract
Childhood socioeconomic position (SEP) is a major determinant of health and well-being across the entire life course. To effectively prevent and reduce health risks related to SEP, it is critical to better understand when and under what circumstances socioeconomic adversity shapes biological processes. DNA methylation (DNAm) is one such mechanism for how early life adversity 'gets under the skin'. In this study, we evaluated the dynamic relationship between SEP and DNAm across childhood using data from 946 mother-child pairs in the Avon Longitudinal Study of Parents and Children. We assessed six SEP indicators spanning financial, occupational and residential domains during very early childhood (ages 0-2), early childhood (ages 3-5) and middle childhood (ages 6-7). Epigenome-wide DNAm was measured at 412 956 cytosine-guanines (CpGs) from peripheral blood at age 7. Using an innovative two-stage structured life-course modeling approach, we tested three life-course hypotheses for how SEP shapes DNAm profiles-accumulation, sensitive period and mobility. We showed that changes in the socioeconomic environment were associated with the greatest differences in DNAm, and that middle childhood may be a potential sensitive period when socioeconomic instability is especially important in shaping DNAm. Top SEP-related DNAm CpGs were overrepresented in genes involved in pathways important for neural development, immune function and metabolic processes. Our findings highlight the importance of socioeconomic stability during childhood and if replicated, may emphasize the need for public programs to help children and families experiencing socioeconomic instability and other forms of socioeconomic adversity.
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Affiliation(s)
- Jiaxuan Liu
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 02114, USA.,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Janine Cerutti
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Alexandre A Lussier
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 02114, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA 02115, USA.,Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Yiwen Zhu
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 02114, USA.,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Brooke J Smith
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Andrew D A C Smith
- Mathematics and Statistics Research Group, University of the West of England, Bristol BS8 1QU, UK
| | - Erin C Dunn
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA 02114, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA 02115, USA.,Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.,Harvard Center on the Developing Child, Harvard University, Cambridge, MA 02138, USA
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7
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Corpas FJ, González-Gordo S, Palma JM. Nitric Oxide (NO) Scaffolds the Peroxisomal Protein-Protein Interaction Network in Higher Plants. Int J Mol Sci 2021; 22:2444. [PMID: 33671021 PMCID: PMC7957770 DOI: 10.3390/ijms22052444] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 12/26/2022] Open
Abstract
The peroxisome is a single-membrane subcellular compartment present in almost all eukaryotic cells from simple protists and fungi to complex organisms such as higher plants and animals. Historically, the name of the peroxisome came from a subcellular structure that contained high levels of hydrogen peroxide (H2O2) and the antioxidant enzyme catalase, which indicated that this organelle had basically an oxidative metabolism. During the last 20 years, it has been shown that plant peroxisomes also contain nitric oxide (NO), a radical molecule than leads to a family of derived molecules designated as reactive nitrogen species (RNS). These reactive species can mediate post-translational modifications (PTMs) of proteins, such as S-nitrosation and tyrosine nitration, thus affecting their function. This review aims to provide a comprehensive overview of how NO could affect peroxisomal metabolism and its internal protein-protein interactions (PPIs). Remarkably, many of the identified NO-target proteins in plant peroxisomes are involved in the metabolism of reactive oxygen species (ROS), either in its generation or its scavenging. Therefore, it is proposed that NO is a molecule with signaling properties with the capacity to modulate the peroxisomal protein-protein network and consequently the peroxisomal functions, especially under adverse environmental conditions.
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Affiliation(s)
- Francisco J. Corpas
- Antioxidant, Free Radical and Nitric Oxide in Biotechnology, Food and Agriculture Group, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council (CSIC), C/ Profesor Albareda, 1, E-18008 Granada, Spain; (S.G.-G.); (J.M.P.)
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Olivares-Rubio HF, Salazar-Coria L, Romero-López JP, Domínguez-López ML, García-Latorre EA, Vega-López A. Fatty acid metabolism and brain mitochondrial performance of juvenile Nile tilapia (Oreochromis niloticus) exposed to the water-accommodated fraction of Maya crude oil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 197:110624. [PMID: 32302862 DOI: 10.1016/j.ecoenv.2020.110624] [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: 11/06/2019] [Revised: 03/18/2020] [Accepted: 04/09/2020] [Indexed: 06/11/2023]
Abstract
Crude oil and its derivatives are still the primary source of energy for humankind. However, during its transportation and treatment, spills of this resource can occur in aquatic environments. Nile tilapia is one of the most globally widespread fish species. This species is even found in brackish water due to its tolerance to salinity and pollution. In this study, the performance of brain cells (mitochondrial membrane potential [ΔΨm], calcium [Ca2+] and O2 and H2O2 levels) exposed to crude oil was assessed. In addition, fatty acid metabolism (cholesterol concentration and fatty acid synthase [FAS], acyl CoA-oxidase [AOX] and catalase [CAT] activities) in the brain, heart, liver and intestine of Nile tilapia exposed to the water-accommodated fraction (WAF) of 0.01, 0.1 or 1 g/L Maya crude oil (MCO) for 96 h were evaluated. After exposure, in brain cells, there were only increases in ROS and slight reductions in ΔΨm. Exposure to WAF of MCO induced and increased the levels of cholesterol and altered FAS and AOX activities in all examined tissues. The brain is the most susceptible organ to alterations in the activity of fatty acid metabolic enzymes and cholesterol levels relative to the heart, liver and intestine. The correlation between inhibition of the activity of CAT and AOX suggests a possible reduction in the proliferation and size of peroxisomes. Most biomarkers were significantly altered in the brains of Nile tilapia exposed to the WAF containing 1 g/L MCO in comparison to the control.
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Affiliation(s)
- Hugo F Olivares-Rubio
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Laboratorio de Toxicología Ambiental, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, CP 07738, Ciudad de México, México, Mexico; Instituto de Investigaciones Biomédicas, Departamento de Medicina Genómica y Toxicología Ambiental, Universidad Nacional Autónoma de México, Ap. Postal 70-228, Ciudad de México, Mexico
| | - Lucía Salazar-Coria
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Laboratorio de Toxicología Ambiental, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, CP 07738, Ciudad de México, México, Mexico; Dirección de Investigación en Transformación de Hidrocarburos, Instituto Mexicano Del Petróleo, Eje Central Lázaro Cárdenas Norte 152, San Bartolo Atepehuacan, CP 07730, Ciudad de México, Mexico
| | - J Pablo Romero-López
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Laboratorio de Inmunoquímica I, Prol Carpio y Plan de Ayala s/n, Col. Casco de Santo Tomás, CP 11340, Ciudad de México, México, Mexico
| | - María Lilia Domínguez-López
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Laboratorio de Inmunoquímica I, Prol Carpio y Plan de Ayala s/n, Col. Casco de Santo Tomás, CP 11340, Ciudad de México, México, Mexico
| | - Ethel A García-Latorre
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Laboratorio de Inmunoquímica I, Prol Carpio y Plan de Ayala s/n, Col. Casco de Santo Tomás, CP 11340, Ciudad de México, México, Mexico
| | - Armando Vega-López
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Laboratorio de Toxicología Ambiental, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, CP 07738, Ciudad de México, México, Mexico.
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Meador JP, Nahrgang J. Characterizing Crude Oil Toxicity to Early-Life Stage Fish Based On a Complex Mixture: Are We Making Unsupported Assumptions? ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:11080-11092. [PMID: 31503459 DOI: 10.1021/acs.est.9b02889] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Numerous studies of the water-soluble fraction (WSF) from crude oil have concluded that polycyclic aromatic hydrocarbons (PAHs) are the primary causative agents for early life stage (ELS) fish toxicity. Noteworthy is the lack of studies demonstrating that the sum of PAHs are capable of causing toxic effects in ELS fish at the low levels claimed (0.1-5 μg/L) without being part of a complex crude oil mixture. Crude oil and the WSF are composed of thousands of other compounds that co-occur and likely contribute to crude oil toxicity. Based on the available data, it appears that the syndrome of effects (lower heart rate, edemas, and morphological abnormalities) for ELS fish exposed to the aqueous fraction of a crude oil mixture is commonly observed in studies exposing fish embryos to high concentrations of a variety of compounds and may be a nonspecific response. We conclude that the available data support the hypothesis that this syndrome of effects is likely the result of baseline toxicity (not receptor based) due to membrane disruption and resulting alteration in ion (e.g., calcium and potassium) homeostasis. We acknowledge the possibility of some compounds in the WSF capable of causing a specific receptor based toxicity response to ELS fish; however, such compounds have not been identified nor their receptor characterized. Concluding that PAHs are the main toxic compounds for crude oil exposure is misleading and does not result in guideline values that can be useful for environmental protection. Water quality guidelines for any single chemical or suite of chemicals must be based on a complete understanding of exposure concentrations, mechanism of action, potency, and resulting response. This review focuses on the toxic effects reported for fish embryos and the purported toxic concentrations observed in the aqueous phase of an oil/water mixture, the known levels of toxicity for individual PAHs, a toxic unit approach for characterizing mixtures, and the potential molecular initiating event for ELS toxicity in fish. This review also has implications for a large number of studies exposing ELS fish to a variety of compounds at high concentrations that result in a common baseline toxic response.
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Affiliation(s)
- James P Meador
- Environmental and Fisheries Sciences Division, Northwest Fisheries Science Center, National Marine Fisheries Service , National Oceanic and Atmospheric Administration , 2725 Montlake Boulevard East , Seattle , Washington 98112 , United States
| | - Jasmine Nahrgang
- Faculty of Biosciences, Fisheries and Economics, Department of Arctic and Marine Biology , UiT The Arctic University of Norway , N-9037 Tromsø , Norway
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Szczybelski AS, van den Heuvel-Greve MJ, Koelmans AA, van den Brink NW. Biomarker responses and biotransformation capacity in Arctic and temperate benthic species exposed to polycyclic aromatic hydrocarbons. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 662:631-638. [PMID: 30703720 DOI: 10.1016/j.scitotenv.2019.01.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 01/04/2019] [Accepted: 01/04/2019] [Indexed: 06/09/2023]
Abstract
Monitoring parameters for the assessment of oil and gas related contaminants and their biological effects need validation before application in the Arctic. For such monitoring purposes, we evaluated the potential use of three biomarkers (acetylcholinesterase, acyl-CoA oxidase and glutathione S-transferase) for application to an Arctic bivalve (Astarte borealis) and determined the body residue of pyrene and two pyrene metabolites (1-hydroxypyrene and pyrene-1-glucuronide) in Arctic benthic species (bivalve: Macoma calcarea; polychaete: Nephtys ciliata) and temperate benthic species (bivalve: Limecola balthica; polychaete: Alitta virens) in order to establish the potential of polycyclic aromatic hydrocarbons (PAHs) metabolite profiles as biomarkers of exposure in such species. Experimental PAH exposure levels were probably too low (0.2-1.7 mg/kg dry weight in sediment) to induce or inhibit biomarker responses in A. borealis. Concentrations of pyrene and pyrene metabolites varied between species, although no consistent patterns could be established among taxonomic groups and locations. Metabolites made up to 79% of the total pyrene concentrations, indicating that basal metabolic activity is affecting pyrene kinetics even at low concentrations in all species. This indicates that Arctic and temperate species could show similar metabolism patterns of PAHs, although more insight into the effects of confounding factors is needed.
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Affiliation(s)
- Ariadna S Szczybelski
- Aquatic Ecology and Water Quality Management Group, Department of Environmental Sciences, Wageningen University, P.O. Box 47, 6700 AA Wageningen, the Netherlands; Department of Animal Ecology, Wageningen Environmental Research, P.O. Box 47, 6700 AA Wageningen, the Netherlands.
| | | | - Albert A Koelmans
- Aquatic Ecology and Water Quality Management Group, Department of Environmental Sciences, Wageningen University, P.O. Box 47, 6700 AA Wageningen, the Netherlands; Wageningen Marine Research, P.O. Box 77, 4400 AB Yerseke, the Netherlands
| | - Nico W van den Brink
- Sub-department of Toxicology, Department of Agrotechnology and Food Sciences, Wageningen University, P.O. Box 8000, 6700 EA Wageningen, the Netherlands
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Ju J, Zheng Z, Xu YJ, Cao P, Li J, Li Q, Liu Y. Influence of total polar compounds on lipid metabolism, oxidative stress and cytotoxicity in HepG2 cells. Lipids Health Dis 2019; 18:37. [PMID: 30709407 PMCID: PMC6359786 DOI: 10.1186/s12944-019-0980-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 01/21/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Recently, the harmful effects of frying oil on health have been gradually realized. However, as main components of frying oils, biochemical effects of total polar compounds (TPC) on a cellular level were underestimated. METHODS The effects of total polar compounds (TPC) in the frying oil on the lipid metabolism, oxidative stress and cytotoxicity of HepG2 cells were investigated through a series of biochemical methods, such as oil red staining, real-time polymerase chain reaction (RT-PCR), cell apoptosis and cell arrest. RESULTS Herein, we found that the survival rate of HepG2 cells treated with TPC decreased in a time and dose dependent manner, and thereby presented significant lipid deposition over the concentration of 0.5 mg/mL. TPC were also found to suppress the expression levels of PPARα, CPT1 and ACOX, elevate the expression level of MTP and cause the disorder of lipid metabolism. TPC ranged from 0 to 2 mg/mL could significantly elevate the amounts of reactive oxygen species (ROS) in HepG2 cells, and simultaneously increase the malondialdehyde (MDA) content from 21.21 ± 2.62 to 65.71 ± 4.20 μmol/mg of protein (p < 0.05) at 24 h. On the contrary, antioxidant enzymes superoxide dismutase (SOD), glutathione (GSH), and catalase (CAT) respectively decreased by 0.52-, 0.56- and 0.28-fold, when HepG2 cells were exposed to 2 mg/mL TPC for 24 h. In addition, TPC could at least partially induce the apoptosis of HepG2 cells, and the transition from G0/G1 to G2 phase in HepG2 cells was impeded. CONCLUSIONS TPC could progressively cause lipid deposition, oxidative stress and cytotoxicity, providing the theoretical support for the detrimental health effects of TPC.
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Affiliation(s)
- Jingjie Ju
- School of Food Science and Technology, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, People's Republic of China
| | - Zhaojun Zheng
- School of Food Science and Technology, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, People's Republic of China
| | - Yong-Jiang Xu
- School of Food Science and Technology, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, People's Republic of China
| | - Peirang Cao
- School of Food Science and Technology, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, People's Republic of China
| | - Jingwei Li
- School of Food Science and Technology, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, People's Republic of China
| | - Qiu Li
- Shandong LuHua group co., LTD, Laiyang, 265200, People's Republic of China
| | - Yuanfa Liu
- School of Food Science and Technology, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, Jiangsu, People's Republic of China.
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12
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Li Y, Zhao Y, Deng H, Chen A, Chai L. Endocrine disruption, oxidative stress and lipometabolic disturbance of Bufo gargarizans embryos exposed to hexavalent chromium. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 166:242-250. [PMID: 30273847 DOI: 10.1016/j.ecoenv.2018.09.100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 09/20/2018] [Accepted: 09/24/2018] [Indexed: 06/08/2023]
Abstract
The aim of the current study was to determine the potential developmental and metabolic abnormalities caused by Cr (VI) exposure on Bufo gargarizans (B. gargarizans) embryos. B. gargarizans embryos were treated with different concentrations of Cr (VI) (13, 52, 104, 208, and 416 μg Cr6+ L-1) for 6 days. Morphological abnormalities, total length, weight and developmental stage were monitored. Malformations of embryos were also examined using scanning electron microscopy (SEM). In addition, the transcript levels of several genes associated with lipid metabolism, oxidative stress, and thyroid hormones signaling pathways were also determined. Our results showed a time-dependent inhibitory effect of Cr (VI) on the growth and development of B. gargarizans embryos. On day 4, total length, weight, and developmental stage were significantly lower at 416 μg Cr6+ L-1 relative to control embryos. On day 6, significant reductions in total length, weight, and developmental stage were observed at 104, 208, and 416 μg Cr6+ L-1. Malformed embryos were found in all Cr (VI) treatments, which were characterized by axial flexures, yolk sac edema and rupture, surface tissue hyperplasia, stunted growth, wavy fin and fin flexure. RT-qPCR results showed that exposure to Cr (VI) down-regulated TRβ and Dio2 mRNA expression and up-regulated Dio3 mRNA level at 416 μg Cr6+ L-1. The transcript levels of SOD and GPx were upregulated at 52, 208, and 416 μg Cr6+ L-1, while the transcript level of HSP90 was downregulated at 52, 208, and 416 μg Cr6+ L-1. Also, mRNA expression of lipid synthesis-related genes (FAE and ACC) were significantly downregulated in embryos treated with 208 and 416 μg Cr6+ L-1, but mRNA expression of fatty acid β-oxidation-related genes (ACOX, CPT, and SCP) was significantly upregulated at 416 μg Cr6+ L-1. Therefore, our results suggested that Cr (VI) could disrupt thyroid endocrine pathways and lipid synthesis, leading to the inhibition of growth and development in B. gargarizans embryos. Furthermore, the decreased ability of scavenging ROS induced by Cr (VI) might be responsible for the teratogenic effects of Cr (VI).
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Affiliation(s)
- Yanbin Li
- School of Environmental Science and Engineering, Chang'an University, Xi'an 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Chang'an University Xi'an 710062, China; Shaanxi Key Laboratory of Land Consolidation, Xi'an 710062, China
| | - Yonghua Zhao
- Shaanxi Key Laboratory of Land Consolidation, Xi'an 710062, China
| | - Hongzhang Deng
- School of Environmental Science and Engineering, Chang'an University, Xi'an 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Chang'an University Xi'an 710062, China
| | - Aixia Chen
- School of Environmental Science and Engineering, Chang'an University, Xi'an 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Chang'an University Xi'an 710062, China
| | - Lihong Chai
- School of Environmental Science and Engineering, Chang'an University, Xi'an 710054, China; Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Chang'an University Xi'an 710062, China; Shaanxi Key Laboratory of Land Consolidation, Xi'an 710062, China.
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13
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Effects of polymethylmethacrylate nanoplastics on Dicentrarchus labrax. Genomics 2018; 110:435-441. [DOI: 10.1016/j.ygeno.2018.10.006] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 09/20/2018] [Accepted: 10/08/2018] [Indexed: 01/05/2023]
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Rosati L, Agnese M, Verderame M, Aniello F, Venditti M, Mita DG, Andreuccetti P, Prisco M. Morphological and molecular responses in ovaries of Mytilus galloprovincialis
collected in two different sites of the Naples Bay. JOURNAL OF EXPERIMENTAL ZOOLOGY PART 2018; 331:52-60. [DOI: 10.1002/jez.2231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 08/20/2018] [Accepted: 08/21/2018] [Indexed: 12/20/2022]
Affiliation(s)
- L. Rosati
- Department of Biology; University of Naples Federico II; Naples Italy
| | - M. Agnese
- Department of Biology; University of Naples Federico II; Naples Italy
| | - M. Verderame
- Department of Biology; University of Naples Federico II; Naples Italy
| | - F. Aniello
- Department of Biology; University of Naples Federico II; Naples Italy
| | - M. Venditti
- Dipartimento di Medicina Sperimentale, Sez, Fisiologia Umana e Funzioni Biologiche Integrate; Università degli studi della Campania “Luigi Vanvitelli”; Napoli Italy
| | - D. G. Mita
- Section of Molecular Oncology, Institute of Genetics and Biophysics of CNR; Naples Italy
- Section of Molecular Oncology, National Laboratory on Endocrine Disruptors - Interuniversity Consortium INBB; Naples Italy
| | - P. Andreuccetti
- Department of Biology; University of Naples Federico II; Naples Italy
| | - M. Prisco
- Department of Biology; University of Naples Federico II; Naples Italy
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15
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De Los Ríos A, Echavarri-Erasun B, Dévier MH, Le Menach K, Budzinski H, Ortiz-Zarragoitia M, Orbea A, Juanes JA, Cajaraville MP. Assessment of the effects of discontinuous sources of contamination through biomarker analyses on caged mussels. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 634:116-126. [PMID: 29627534 DOI: 10.1016/j.scitotenv.2018.03.297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 03/23/2018] [Accepted: 03/24/2018] [Indexed: 06/08/2023]
Abstract
The present study analysed potential adverse effects of discontinuous sources of contamination, namely the discharge of a combined sewer overflow (CSO) and of runoff in an urban area, the Bay of Santander (North Iberian Peninsula). Water samples and caged mussels were used to analyse concentrations of contaminants and biological responses. Mussels (Mytilus galloprovincialis) were transplanted to a marina receiving runoff from a petrol station and to a CSO discharge site. Samples were collected in synchrony with heavy rains along 62days. Lysosomal membrane stability (LMS) and acyl-CoA oxidase (AOX) activity were measured as core biomarkers and were analysed at all sampling times. Histopathology of digestive gland and gonads, transcription levels of vitellogenin gene, volume density of black silver deposits and micronuclei formation were measured at initial and final stages of the transplant. Chemical analyses of metals, polycyclic aromatic hydrocarbons (PAHs) and endocrine disruptors were performed in water samples and mussel flesh. Mussels accumulated low concentrations of contaminants, which is in accordance with results obtained from exposure biomarkers. AOX activity decreased in all transplanted mussels after the first heavy rain, but this change seems to be related to the seasonal pattern of the enzyme activity. Mussels located close to the CSO discharge site showed a reduction in LMS after the first rain event, when compared to mussels before the transplant and to mussels from the reference location. However, this was attributable to natural environmental changes rather than to pollution. Values of the rest of analysed biomarkers were below threshold values reported for the study area.
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Affiliation(s)
- A De Los Ríos
- Environmental Hydraulics Institute "IH Cantabria", University of Cantabria, c/ Isabel Torres no 15, 39011 Santander, Spain
| | - B Echavarri-Erasun
- Environmental Hydraulics Institute "IH Cantabria", University of Cantabria, c/ Isabel Torres no 15, 39011 Santander, Spain
| | - M-H Dévier
- Univ. Bordeaux, EPOC, UMR 5805, LPTC unit, 351 crs de la Libération, F-33400 Talence, France; CNRS, EPOC, UMR 5805, LPTC unit, F-33400 Talence, France
| | - K Le Menach
- Univ. Bordeaux, EPOC, UMR 5805, LPTC unit, 351 crs de la Libération, F-33400 Talence, France; CNRS, EPOC, UMR 5805, LPTC unit, F-33400 Talence, France
| | - H Budzinski
- Univ. Bordeaux, EPOC, UMR 5805, LPTC unit, 351 crs de la Libération, F-33400 Talence, France; CNRS, EPOC, UMR 5805, LPTC unit, F-33400 Talence, France
| | - M Ortiz-Zarragoitia
- Laboratory of Cell Biology and Histology, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena z/g, E-48940 Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology PIE, University of the Basque Country (UPV/EHU), Areatza z/g, E-48620 Plentzia, Basque Country, Spain
| | - A Orbea
- Laboratory of Cell Biology and Histology, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena z/g, E-48940 Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology PIE, University of the Basque Country (UPV/EHU), Areatza z/g, E-48620 Plentzia, Basque Country, Spain
| | - J A Juanes
- Environmental Hydraulics Institute "IH Cantabria", University of Cantabria, c/ Isabel Torres no 15, 39011 Santander, Spain
| | - M P Cajaraville
- Laboratory of Cell Biology and Histology, Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena z/g, E-48940 Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology PIE, University of the Basque Country (UPV/EHU), Areatza z/g, E-48620 Plentzia, Basque Country, Spain.
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16
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Vieweg I, Bilbao E, Meador JP, Cancio I, Bender ML, Cajaraville MP, Nahrgang J. Effects of dietary crude oil exposure on molecular and physiological parameters related to lipid homeostasis in polar cod (Boreogadus saida). Comp Biochem Physiol C Toxicol Pharmacol 2018; 206-207:54-64. [PMID: 29555404 DOI: 10.1016/j.cbpc.2018.03.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 03/11/2018] [Accepted: 03/14/2018] [Indexed: 12/15/2022]
Abstract
Polar cod is an abundant Arctic key species, inhabiting an ecosystem that is subjected to rapid climate change and increased petroleum related activities. Few studies have investigated biological effects of crude oil on lipid metabolism in this species, despite lipids being a crucial compound for Arctic species to adapt to the high seasonality in food abundance in their habitat. This study examines the effects of dietary crude oil exposure on transcription levels of genes related to lipid metabolism (peroxisome proliferator-activated receptors [ppar-α, ppar-γ], retinoic X receptor [rxr-β], palmitoyl-CoA oxidase [aox1], cytochrome P4507A1 [cyp7α1]), reproduction (vitellogenin [vtg-β], gonad aromatase [cyp19a1]) and biotransformation (cytochrome P4501A1 [cyp1a1], aryl hydrocarbon receptor [ahr2]). Exposure effects were also examined through plasma chemistry parameters. Additional fish were exposed to a PPAR-α agonist (WY-14,643) to investigate the role of PPAR-α in their lipid metabolism. The dose-dependent up-regulation of cyp1a1 reflected the activation of genes related to PAH biotransformation upon crude oil exposure. The crude oil exposure did not significantly alter the mRNA expression of genes involved in lipid homeostasis except for cyp7α1 transcription levels. Plasma levels of cholesterol and alanine transaminase showed significant alterations in fish exposed to crude oil at the end of the experiment. WY exposure induced a down-regulation of ppar-α, an effect contrary to studies performed on other fish species. In conclusion, this study showed clear effects of dietary crude oil exposure at environmentally relevant concentrations on xenobiotic biotransformation but revealed only weak alterations in the lipid metabolism of polar cod.
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Affiliation(s)
- Ireen Vieweg
- UiT-The Arctic University of Norway, Faculty of Biosciences, Fisheries and Economics, Department of Arctic and Marine Biology, Tromsø, Norway.
| | - Eider Bilbao
- University of the Basque Country UPV/EHU, Department of Zoology and Cell Biology, Faculty of Science and Technology and Research, Centre for Experimental Marine Biology and Biotechnology of Plentzia, Bilbao, Basque Country, Spain
| | - James P Meador
- Ecotoxicology and Environmental Fish Health Program, Northwest Fisheries Science Center, NOAA Fisheries, Seattle, WA, USA
| | - Ibon Cancio
- University of the Basque Country UPV/EHU, Department of Zoology and Cell Biology, Faculty of Science and Technology and Research, Centre for Experimental Marine Biology and Biotechnology of Plentzia, Bilbao, Basque Country, Spain
| | - Morgan Lizabeth Bender
- UiT-The Arctic University of Norway, Faculty of Biosciences, Fisheries and Economics, Department of Arctic and Marine Biology, Tromsø, Norway
| | - Miren P Cajaraville
- University of the Basque Country UPV/EHU, Department of Zoology and Cell Biology, Faculty of Science and Technology and Research, Centre for Experimental Marine Biology and Biotechnology of Plentzia, Bilbao, Basque Country, Spain
| | - Jasmine Nahrgang
- UiT-The Arctic University of Norway, Faculty of Biosciences, Fisheries and Economics, Department of Arctic and Marine Biology, Tromsø, Norway
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17
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Olivares-Rubio HF, Salazar-Coria L, Nájera-Martínez M, Godínez-Ortega JL, Vega-López A. Lipid metabolism and pro-oxidant/antioxidant balance of Halamphora oceanica from the Gulf of Mexico exposed to water accommodated fraction of Maya crude oil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 147:840-851. [PMID: 28968937 DOI: 10.1016/j.ecoenv.2017.09.057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 09/18/2017] [Accepted: 09/20/2017] [Indexed: 06/07/2023]
Abstract
Diatoms play key roles in primary production and carbon fixation at a global scale and in some cases these species live on marine ecosystems impacted by crude oil (CO) spills. Halamphora oceanica, a new diatom species from the Southwest of the Gulf of Mexico was isolated and cultured in the laboratory and was exposed to water accommodated fraction (WAF) of different Maya CO loads at 0.01, 0.1, 1 and 10g/L by 96h. A battery of biomarkers involved in oxidative stress (O2•, H2O2, TBARS, ROOH, RC=O, SOD, CAT, GPx), biotransformation and conjugation (total CYP450 activity and GST) moreover fatty acid (FA) metabolism (FA levels, fatty-acid synthase and acyl-CoA oxidase) were measured. Obtained results suggest that increases of PAHs in the medium (below to EC50) acts as external forces able to turn-on regulatory mechanisms on H. oceanica involved in both, on the PAHs uptake and changing its aerobic metabolism to anaerobic metabolism. However, the growth of this microalgae species evaluated as chlorophyll "a" and pheophytin levels increased as the WAF concentration indicating that PAHs and other hydrosoluble hydrocarbons were used as carbon and energy sources by unidentified enzymes not evaluated in the current study. Our hypothesis was also corroborated by IBRv2. In the current study, we suppose the change from aerobic to anaerobic metabolism as a strategy for Halamphora oceanica survival exposed to petroleum hydrocarbons.
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Affiliation(s)
- Hugo F Olivares-Rubio
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Laboratorio de Toxicología Ambiental. Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, México D.F. CP 07738, Mexico
| | - Lucía Salazar-Coria
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Laboratorio de Toxicología Ambiental. Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, México D.F. CP 07738, Mexico
| | - Minerva Nájera-Martínez
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Laboratorio de Toxicología Ambiental. Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, México D.F. CP 07738, Mexico
| | - José Luis Godínez-Ortega
- Universidad Nacional Autónoma de México, Instituto de Biología, Apdo. postal 70-233, 04510 México D.F., Mexico
| | - Armando Vega-López
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Laboratorio de Toxicología Ambiental. Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, México D.F. CP 07738, Mexico.
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18
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Reinling J, Houde M, Verreault J. Environmental exposure to a major urban wastewater effluent: Effects on the energy metabolism of northern pike. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 191:131-140. [PMID: 28837883 DOI: 10.1016/j.aquatox.2017.08.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 08/01/2017] [Accepted: 08/02/2017] [Indexed: 06/07/2023]
Abstract
Municipal wastewater effluents (MWWEs) consist of dynamic and complex mixtures of chemical and biological compounds that can alter the health of exposed aquatic organisms. Disturbance of energy metabolism has been reported in fish exposed to MWWEs. However, there is a scarcity of knowledge on the physiological events leading to perturbation of energy balance and thyroid regulation, and associated lipid metabolism. The objective of the present study was to use a set of biomarkers, from gene transcription to body condition, to investigate the effects of a chronic environmental exposure to a major primary MWWE on fatty acid metabolism and thyroid hormone levels in northern pike (Esox lucius) collected from the St. Lawrence River near Montreal (QC, Canada). The exposure of pike to MWWE was examined through determination of a suite of persistent and bioaccumulative halogenated flame retardants in liver as this effluent is a known regional source for these chemicals. Greater hepatic concentrations of polybrominated diphenyl ethers (PBDEs, range: 29.6-465ng/g w.w. and 88.8-823ng/g w.w. in females and males, respectively) and other halogenated flame retardants (e.g., dechlorane-related compounds) were determined in fish collected downstream of the MWWE's point of discharge relative to the upstream site. This exposure in male pike was associated with decreased acyl-coA oxidase (acox1) and fatty acid synthase (fasn) mRNA levels as well as a decreased acyl-coA oxidase (ACOX) activity in liver. In female pike, MWWE exposure was associated with lower circulating free and total triiodothyronine (T3) levels and a tendency for greater total lipid percentages in liver. Present findings provide evidence that chronic exposure of a top predator fish to MWWE can be related to gender-specific effects on fatty acid metabolism and thyroid hormone homeostasis, and highlight the need for further investigation.
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Affiliation(s)
- Julie Reinling
- Centre de recherche en toxicologie de l'environnement (TOXEN), Département des sciences biologiques, Université du Québec à Montréal, C.P. 8888, Succursale Centre-ville, Montreal, QC H3C 3P8, Canada
| | - Magali Houde
- Environment and Climate Change Canada, 105 McGill Street, Montreal, QC H2Y 2E7, Canada.
| | - Jonathan Verreault
- Centre de recherche en toxicologie de l'environnement (TOXEN), Département des sciences biologiques, Université du Québec à Montréal, C.P. 8888, Succursale Centre-ville, Montreal, QC H3C 3P8, Canada
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19
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Baldwin WS, Boswell WT, Ginjupalli G, Litoff EJ. Annotation of the Nuclear Receptors in an Estuarine Fish species, Fundulus heteroclitus. NUCLEAR RECEPTOR RESEARCH 2017; 4. [PMID: 28804711 DOI: 10.11131/2017/101285] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The nuclear receptors (NRs) are ligand-dependent transcription factors that respond to various internal as well as external cues such as nutrients, pheromones, and steroid hormones that play crucial roles in regulation and maintenance of homeostasis and orchestrating the physiological and stress responses of an organism. We annotated the Fundulus heteroclitus (mummichog; Atlantic killifish) nuclear receptors. Mummichog are a non-migratory, estuarine fish with a limited home range often used in environmental research as a field model for studying ecological and evolutionary responses to variable environmental conditions such as salinity, oxygen, temperature, pH, and toxic compounds because of their hardiness. F. heteroclitus have at least 74 NRs spanning all seven gene subfamilies. F. heteroclitus is unique in that no RXRα member was found within the genome. Interestingly, some of the NRs are highly conserved between species, while others show a higher degree of divergence such as PXR, SF1, and ARα. Fundulus like other fish species show expansion of the RAR (NR1B), Rev-erb (NR1D), ROR (NR1F), COUPTF (NR2F), ERR (NR3B), RXR (NR2B), and to a lesser extent the NGF (NR4A), and NR3C steroid receptors (GR/AR). Of particular interest is the co-expansion of opposing NRs, Reverb-ROR, and RAR/RXR-COUPTF.
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Affiliation(s)
- William S Baldwin
- Biological Sciences, Clemson University, Clemson, SC 29634.,Environmental Toxicology Program, Clemson University, Clemson, SC 29634
| | | | - Gautam Ginjupalli
- Environmental Toxicology Program, Clemson University, Clemson, SC 29634
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Cunha V, Santos MM, Moradas-Ferreira P, Castro LFC, Ferreira M. Simvastatin modulates gene expression of key receptors in zebrafish embryos. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2017; 80:465-476. [PMID: 28682217 DOI: 10.1080/15287394.2017.1335258] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 05/23/2017] [Indexed: 06/07/2023]
Abstract
Nuclear receptors (NR) are involved in the regulation of several metabolic processes and it is well known that these constituents may be modulated by different chemicals classes, including pharmaceuticals that may activate or antagonize NR. In mammals, some pharmaceuticals modulate the transcription of pregnane X receptor, Pxr, peroxisome proliferator activated receptor, Ppars, and aryl hydrocarbon receptor, Ahr, affecting mRNA expression of genes belonging to various regulatory pathways, including lipid metabolism and detoxification mechanisms. The aim of this study was to determine the effects of simvastatin (SIM), an anticholesterolemic drug, on selected NR and AhR mRNA transcription levels during zebrafish early development. Embryos were collected at different development stages (0, 2, 6, 14, 24, 48, and 72 hr post fertilization (hpf)) and mRNA of all target NR was detected at all time points. Embryos (1 and 24 hpf) were exposed to different concentrations of SIM (5 or 50 μg/L) in two differing assays with varying exposure times (2 or 80 hr). The transcription levels of ahr2, raraa, rarab, rarga, pparαa, pparβ1, pparγ, pxr, rxraa, rxrab, rxrbb, rxrga, rxrgb, as well as levels of cholesterol (Chol) were measured after exposure. SIM exerted no marked effect on Chol levels, and depending upon exposure duration mRNA levels of NR and AhR either increased or decreased. After 2 hr SIM treatment in 24 hpf embryos, transcription of ppars, pxr, and ahr was up-regulated, while after 80 hr mRNA levels of pxr and ahr were decreased with no marked changes in ppars. Data demonstrate that SIM produced alterations in gene expression of NR which are involved in varying physiological functions and that may disturb regulation of different physiological processes which might impair fish survival and ecosystems regeneration.
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Affiliation(s)
- V Cunha
- a CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n , Matosinhos , Portugal
- b ICBAS/UP-Institute of Biomedical Sciences Abel Salazar, University of Porto , Porto , Portugal
| | - M M Santos
- a CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n , Matosinhos , Portugal
- c FCUP-Department of Biology , Faculty of Sciences, University of Porto, Rua do Campo Alegre , Porto , Portugal
| | - P Moradas-Ferreira
- b ICBAS/UP-Institute of Biomedical Sciences Abel Salazar, University of Porto , Porto , Portugal
- d I3S-Institute for Research and Innovation in Health, University of Porto , Porto , Portugal
| | - L F C Castro
- a CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n , Matosinhos , Portugal
- c FCUP-Department of Biology , Faculty of Sciences, University of Porto, Rua do Campo Alegre , Porto , Portugal
| | - M Ferreira
- a CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n , Matosinhos , Portugal
- e School of Marine Studies, Faculty of Science , Technology and Environment, The University of the South Pacific, Private mail box, Laucala Bay Road , Suva , Fiji Islands
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Deb R, Nagotu S. Versatility of peroxisomes: An evolving concept. Tissue Cell 2017; 49:209-226. [DOI: 10.1016/j.tice.2017.03.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Revised: 03/05/2017] [Accepted: 03/06/2017] [Indexed: 02/04/2023]
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Diaz de Cerio O, Bilbao E, Ruiz P, Pardo BG, Martínez P, Cajaraville MP, Cancio I. Hepatic gene transcription profiles in turbot (Scophthalmus maximus) experimentally exposed to heavy fuel oil nº 6 and to styrene. MARINE ENVIRONMENTAL RESEARCH 2017; 123:14-24. [PMID: 27846414 DOI: 10.1016/j.marenvres.2016.11.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 11/04/2016] [Accepted: 11/08/2016] [Indexed: 06/06/2023]
Abstract
Oil and chemical spills in the marine environment, although sporadic, are highly dangerous to biota inhabiting coastal and estuarine areas. Effects of spilled compounds in exposed organisms occur at different biological organization levels: from molecular, cellular or tissue levels to the physiological one. The present study aims to determine the specific hepatic gene transcription profiles observed in turbot juveniles under exposure to fuel oil n °6 and styrene vs controls using an immune enriched turbot (Scophthalmus maximus) oligo-microarray containing 2716 specific gene probes. After 3 days of exposure, fuel oil specifically induced aryl hydrocarbon receptor mediated transcriptional response through up-regulation of genes, such as ahrr and cyp1a1. More gene transcripts were regulated after 14 days of exposure involved in ribosomal biosynthesis, immune modulation, and oxidative response among the most significantly regulated functional pathways. On the contrary, gene transcription alterations caused by styrene did not highlight any significantly regulated molecular or metabolic pathway. This was also previously reported at cell and tissue level where no apparent responses were distinguishable. For the fuel oil experiment, obtained specific gene profiles could be related to changes in cell-tissue organization in the same individuals, such as increased hepatocyte vacuolization, decrease in melano-macrophage centers and the regulation of leukocyte numbers. In conclusion, the mode of action reflected by gene transcription profiles analyzed hereby in turbot livers could be linked with the responses previously reported at higher biological organization levels. Molecular alterations described hereby could be preceding observed alterations at cell and tissue levels.
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Affiliation(s)
- Oihane Diaz de Cerio
- CBET Research Group, Dept. of Zoology and Animal Cell Biology, Fac. Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), E-48080 Bilbao, PO Box 644, Basque Country, Spain
| | - Eider Bilbao
- CBET Research Group, Dept. of Zoology and Animal Cell Biology, Fac. Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), E-48080 Bilbao, PO Box 644, Basque Country, Spain
| | - Pamela Ruiz
- CBET Research Group, Dept. of Zoology and Animal Cell Biology, Fac. Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), E-48080 Bilbao, PO Box 644, Basque Country, Spain
| | - Belén G Pardo
- Departamento de Xenética, Facultade de Veterinaria, Universidade de Santiago de Compostela, Lugo, 27002, Spain
| | - Paulino Martínez
- Departamento de Xenética, Facultade de Veterinaria, Universidade de Santiago de Compostela, Lugo, 27002, Spain
| | - Miren P Cajaraville
- CBET Research Group, Dept. of Zoology and Animal Cell Biology, Fac. Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), E-48080 Bilbao, PO Box 644, Basque Country, Spain
| | - Ibon Cancio
- CBET Research Group, Dept. of Zoology and Animal Cell Biology, Fac. Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology (PiE-UPV/EHU), University of the Basque Country (UPV/EHU), E-48080 Bilbao, PO Box 644, Basque Country, Spain.
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Balbi T, Ciacci C, Grasselli E, Smerilli A, Voci A, Canesi L. Utilization of Mytilus digestive gland cells for the in vitro screening of potential metabolic disruptors in aquatic invertebrates. Comp Biochem Physiol C Toxicol Pharmacol 2017; 191:26-35. [PMID: 27626137 DOI: 10.1016/j.cbpc.2016.08.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 08/30/2016] [Accepted: 08/30/2016] [Indexed: 12/31/2022]
Abstract
In vertebrate systems, many endocrine disruptors (EDs) can also interfere with energy and lipid metabolism, thus acting as metabolic disruptors. At the cellular level, these effects are mainly mediated by interactions with nuclear receptors/transcription factors, leading to the modulation of genes involved in lipid homeostasis, as well as by rapid, receptor-independent pathways. Several potential metabolic disruptors are found in aquatic environments. In fish, different EDs have been shown to affect hepatic lipid homeostasis both in vivo and in vitro. However, little information is available in aquatic invertebrates due to our poor knowledge of the regulatory pathways of lipid metabolism. In this work, primary cell cultures from the digestive gland of the bivalve Mytilus galloprovincialis were utilized to investigate the effects of model EDs (bisphenol A (BPA) and perfluorooctane sulphonate (PFOS)) on lipid homeostasis. Both compounds (at 24 and 3h of exposure) increased intracellular lipid and tryglyceride-TAG content, with strongest effects of PFOS at 10-7M. Acyl-CoA oxidase activity was unaffected, whereas some changes in the activity of glycolytic, antioxidant/biotransformation enzymes were observed; however, no clear relationship was found with lipid accumulation. Evaluation of mitochondrial membrane potential Δψm and determination of extracellular TAG content indicate that PFOS interferes with mitochondrial function and lipid secretion, whereas BPA mainly affects lipid secretion. Experiments with specific inhibitors showed that activation of PI-3 kinase and extracellularly regulated mitogen-activated protein kinase (ERK MAPK) plays a key role in mediating lipid accumulation. Mussel digestive gland cells represent a simple in vitro model for screening the metabolic effects of EDs in marine invertebrates.
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Affiliation(s)
- Teresa Balbi
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genova, Italy
| | - Caterina Ciacci
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genova, Italy
| | - Elena Grasselli
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genova, Italy
| | - Arianna Smerilli
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genova, Italy
| | - Adriana Voci
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genova, Italy
| | - Laura Canesi
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genoa, Corso Europa 26, 16132 Genova, Italy.
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Olivares-Rubio HF, Vega-López A. Fatty acid metabolism in fish species as a biomarker for environmental monitoring. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 218:297-312. [PMID: 27453357 DOI: 10.1016/j.envpol.2016.07.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 07/02/2016] [Accepted: 07/03/2016] [Indexed: 06/06/2023]
Abstract
Pollution by Organic Contaminants (OC) in aquatic environments is a relevant issue at the global scale. Lipids comprised of Fatty Acids (FA) play many important roles in the physiology and life history of fishes. Toxic effects of OC are partly dependent on its bioaccumulation in the lipids of aquatic organisms due its physicochemical properties. Therefore, there is an increasing interest to investigate the gene expression as well as the presence and activity of proteins involved in FA metabolism. The attention on Peroxisome Proliferation Activate Receptors (PPARs) also prevails in fish species exposed to OC and in the transport, biosynthesis and β-oxidation of FA. Several studies have been conducted under controlled conditions to evaluate these biological aspects of fish species exposed to OC, as fibrates, endocrine disrupting compounds, perfluoroalkyl acids, flame retardants, metals and mixtures of organic compounds associated with a polluted area. However, only fibrates, which are agonists of PPARs, induce biological responses suitable to be considered as biomarkers of exposure to these pollutants. According to the documented findings on this topic, it is unlikely that these physiological aspects are suitable to be employed as biomarkers with some noticeable exceptions, which depend on experimental design. This emphasises the need to investigate the responses in fish treated with mixtures of OC and in wild fish species from polluted areas to validate or refute the suitability of these biomarkers for environmental or fish health monitoring.
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Affiliation(s)
- Hugo F Olivares-Rubio
- Laboratorio de Toxicología Ambiental, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, Ciudad de México, C. P. 07738, Mexico.
| | - Armando Vega-López
- Laboratorio de Toxicología Ambiental, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, Ciudad de México, C. P. 07738, Mexico.
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25
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Bruneau A, Landry C, Giraudo M, Douville M, Brodeur P, Boily M, Gagnon P, Houde M. Integrated spatial health assessment of yellow perch (Perca flavescens) populations from the St. Lawrence River (QC, Canada), part B: cellular and transcriptomic effects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:18211-18221. [PMID: 27272701 DOI: 10.1007/s11356-016-7001-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Accepted: 05/27/2016] [Indexed: 06/06/2023]
Abstract
Multi-biological level assessments have become great tools to evaluate the health of aquatic ecosystems. Using this approach, a complementary study was designed to evaluate the health of yellow perch (Perca flavescens) populations in the St. Lawrence River (Quebec, Canada). In the present study, stress responses were compared at the transcriptomic, cellular, and tissue levels in yellow perch collected at six sites along the river: Lake St. François, Lake St. Louis (north and south), Beauregard Island and Lake St. Pierre (north and south). These results complement the physiological and chemical parameters as well as pathogen infection investigated in a companion paper published in the present issue. Thiobarbituric acid reactive substance (TBARS) analyses indicated the presence of oxidative stress in fish collected in the southern part of Lake St. Louis and at the downstream sites of Lake St. Pierre. High lipid peroxidation levels were found in the muscle of yellow perch caught at Beauregard Island, located downstream of the Montreal's wastewater treatment plant, suggesting an impact of the municipal effluent on redox homeostasis. Transcriptomic results indicated the down-regulation of genes related to lipid, glucose, and retinoid in southern Lake St. Pierre as well as a decrease in retinoid storage. Overall, biochemical and molecular markers indicated that the health status of yellow perch followed a decreasing gradient from upstream to downstream of the St. Lawrence River. This gradient is representative of the cumulative negative impacts of human activities on water and habitat quality along the river.
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Affiliation(s)
- Audrey Bruneau
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, Water Science and Technology Directorate, 105 McGill street, Montreal, QC, H2Y 2E7, Canada
| | - Catherine Landry
- Centre de recherche en toxicologie de l'environnement (TOXEN), Département des sciences biologiques, Université du Québec à Montréal, C.P. 8888, Succursale Centre-ville, Montreal, QC, H3C 3P8, Canada
| | - Maeva Giraudo
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, Water Science and Technology Directorate, 105 McGill street, Montreal, QC, H2Y 2E7, Canada.
| | - Mélanie Douville
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, Water Science and Technology Directorate, 105 McGill street, Montreal, QC, H2Y 2E7, Canada
| | - Philippe Brodeur
- Ministère des Forêts, de la Faune et des Parcs, Direction de la gestion de la faune de la Mauricie et du Centre-du-Québec, 100, rue Laviolette, bureau 207, Trois-Rivières, QC, G9A 5S9, Canada
| | - Monique Boily
- Centre de recherche en toxicologie de l'environnement (TOXEN), Département des sciences biologiques, Université du Québec à Montréal, C.P. 8888, Succursale Centre-ville, Montreal, QC, H3C 3P8, Canada
| | - Pierre Gagnon
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, Water Science and Technology Directorate, 105 McGill street, Montreal, QC, H2Y 2E7, Canada
| | - Magali Houde
- Environment and Climate Change Canada, Aquatic Contaminants Research Division, Water Science and Technology Directorate, 105 McGill street, Montreal, QC, H2Y 2E7, Canada
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26
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Synergic stress in striped catfish (Pangasianodon hypophthalmus, S.) exposed to chronic salinity and bacterial infection: Effects on kidney protein expression profile. J Proteomics 2016; 142:91-101. [DOI: 10.1016/j.jprot.2016.04.046] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 04/28/2016] [Accepted: 04/28/2016] [Indexed: 12/14/2022]
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27
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Frantzen M, Regoli F, Ambrose WG, Nahrgang J, Geraudie P, Benedetti M, Locke WL, Camus L. Biological effects of mechanically and chemically dispersed oil on the Icelandic scallop (Chlamys islandica). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 127:95-107. [PMID: 26809079 DOI: 10.1016/j.ecoenv.2016.01.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 01/11/2016] [Accepted: 01/12/2016] [Indexed: 06/05/2023]
Abstract
This study aimed to simulate conditions in which dispersant (Dasic NS) might be used to combat an oil spill in coastal sub-Arctic water of limited depth and water exchange in order to produce input data for Net Environmental Benefit Analysis (NEBA) of Arctic and sub-Arctic coastal areas. Concentration dependent differences in acute responses and long-term effects of a 48h acute exposure to dispersed oil, with and without the application of a chemical dispersant, were assessed on the Arctic filter feeding bivalve Chlamys islandica. Icelandic scallops were exposed for 48h to a range of spiked concentrations of mechanically and chemically dispersed oil. Short-term effects were assessed in terms of lysosomal membrane stability, superoxide dismutase, catalase, gluthatione S-transferases, glutathione peroxidases, glutathione reductase, glutathione, total oxyradical scavenging capacity, lipid peroxidation and peroxisomal proliferation. Post-exposure survival, growth and reproductive investment were followed for 2 months to evaluate any long-term consequence. Generally, similar effects were observed in scallops exposed to mechanically and chemically dispersed oil. Limited short-term effects were observed after 48h, suggesting that a different timing would be required for measuring the possible onset of such effects. There was a concentration dependent increase in cumulative post-exposure mortality, but long-term effects on gonadosomatic index, somatic growth/condition factor did not differ among treatments.
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Affiliation(s)
- Marianne Frantzen
- Akvaplan-niva, Fram Centre, Post Box 6606 Langnes, N-9296 Tromsø, Norway.
| | - Francesco Regoli
- Dipartimento de Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, I-60131 Ancona, Italy.
| | - William G Ambrose
- Akvaplan-niva, Fram Centre, Post Box 6606 Langnes, N-9296 Tromsø, Norway; Bates College, Department of Biology, Lewiston, ME 04240, USA.
| | - Jasmine Nahrgang
- Akvaplan-niva, Fram Centre, Post Box 6606 Langnes, N-9296 Tromsø, Norway.
| | - Perrine Geraudie
- Akvaplan-niva, Fram Centre, Post Box 6606 Langnes, N-9296 Tromsø, Norway.
| | - Maura Benedetti
- Dipartimento de Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, I-60131 Ancona, Italy.
| | - William L Locke
- Bates College, Department of Biology, Lewiston, ME 04240, USA.
| | - Lionel Camus
- Akvaplan-niva, Fram Centre, Post Box 6606 Langnes, N-9296 Tromsø, Norway.
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Meta-Analysis of Microarray Data of Rainbow Trout Fry Gonad Differentiation Modulated by Ethynylestradiol. PLoS One 2015; 10:e0135799. [PMID: 26379055 PMCID: PMC4574709 DOI: 10.1371/journal.pone.0135799] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2015] [Accepted: 07/27/2015] [Indexed: 01/25/2023] Open
Abstract
Sex differentiation in fish is a highly labile process easily reversed by the use of exogenous hormonal treatment and has led to environmental concerns since low doses of estrogenic molecules can adversely impact fish reproduction. The goal of this study was to identify pathways altered by treatment with ethynylestradiol (EE2) in developing fish and to find new target genes to be tested further for their possible role in male-to-female sex transdifferentiation. To this end, we have successfully adapted a previously developed bioinformatics workflow to a meta-analysis of two datasets studying sex reversal following exposure to EE2 in juvenile rainbow trout. The meta-analysis consisted of retrieving the intersection of the top gene lists generated for both datasets, performed at different levels of stringency. The intersecting gene lists, enriched in true positive differentially expressed genes (DEGs), were subjected to over-representation analysis (ORA) which allowed identifying several statistically significant enriched pathways altered by EE2 treatment and several new candidate pathways, such as progesterone-mediated oocyte maturation and PPAR signalling. Moreover, several relevant key genes potentially implicated in the early transdifferentiation process were selected. Altogether, the results show that EE2 has a great effect on gene expression in juvenile rainbow trout. The feminization process seems to result from the altered transcription of genes implicated in normal female gonad differentiation, resulting in expression similar to that observed in normal females (i.e. the repression of key testicular markers cyp17a1, cyp11b, tbx1), as well as from other genes (including transcription factors) that respond specifically to the EE2 treatment. The results also showed that the bioinformatics workflow can be applied to different types of microarray platforms and could be generalized to (eco)toxicogenomics studies for environmental risk assessment purposes.
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Burkina V, Zlabek V, Zamaratskaia G. Effects of pharmaceuticals present in aquatic environment on Phase I metabolism in fish. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2015; 40:430-44. [PMID: 26278678 DOI: 10.1016/j.etap.2015.07.016] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 07/18/2015] [Accepted: 07/23/2015] [Indexed: 05/18/2023]
Abstract
The fate of pharmaceuticals in aquatic environments is an issue of concern. Current evidence indicates that the risks to fish greatly depend on the nature and concentrations of the pharmaceuticals and might be species-specific. Assessment of risks associated with the presence of pharmaceuticals in water is hindered by an incomplete understanding of the metabolism of these pharmaceuticals in aquatic species. In mammals and fish, pharmaceuticals are primarily metabolized by cytochrome P450 enzymes (CYP450). Thus, CYP450 activity is a crucial factor determining the detoxification abilities of organisms. Massive numbers of toxicological studies have investigated the interactions of human pharmaceuticals with detoxification systems in various fish species. In this paper, we review the effects of pharmaceuticals found in aquatic environments on fish hepatic CYP450. Moreover, we discuss the roles of nuclear receptors in cellular regulation and the effects of various groups of chemicals on fish, presented in the recent literature.
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Affiliation(s)
- Viktoriia Burkina
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Vladimir Zlabek
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic.
| | - Galia Zamaratskaia
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 25 Vodnany, Czech Republic; Swedish University of Agricultural Sciences, Uppsala BioCenter, Department of Food Science, P.O. Box 7051, SE-750 07 Uppsala, Sweden.
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Corcoran J, Winter MJ, Lange A, Cumming R, Owen SF, Tyler CR. Effects of the lipid regulating drug clofibric acid on PPARα-regulated gene transcript levels in common carp (Cyprinus carpio) at pharmacological and environmental exposure levels. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 161:127-37. [PMID: 25749508 PMCID: PMC4372818 DOI: 10.1016/j.aquatox.2015.01.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 01/29/2015] [Accepted: 01/31/2015] [Indexed: 05/20/2023]
Abstract
In mammals, the peroxisome proliferator-activated receptor α (PPARα) plays a key role in regulating various genes involved in lipid metabolism, bile acid synthesis and cholesterol homeostasis, and is activated by a diverse group of compounds collectively termed peroxisome proliferators (PPs). Specific PPs have been detected in the aquatic environment; however little is known on their pharmacological activity in fish. We investigated the bioavailability and persistence of the human PPARα ligand clofibric acid (CFA) in carp, together with various relevant endpoints, at a concentration similar to therapeutic levels in humans (20mg/L) and for an environmentally relevant concentration (4μg/L). Exposure to pharmacologically-relevant concentrations of CFA resulted in increased transcript levels of a number of known PPARα target genes together with increased acyl-coA oxidase (Acox1) activity, supporting stimulation of lipid metabolism pathways in carp which are known to be similarly activated in mammals. Although Cu,Zn-superoxide dismutase (Sod1) activity was not affected, mRNA levels of several biotransformation genes were also increased, paralleling previous reports in mammals and indicating a potential role in hepatic detoxification for PPARα in carp. Importantly, transcription of some of these genes (and Acox1 activity) were affected at exposure concentrations comparable with those reported in effluent discharges. Collectively, these data suggest that CFA is pharmacologically active in carp and has the potential to invoke PPARα-related responses in fish exposed in the environment, particularly considering that CFA may represent just one of a number of PPAR-active compounds present to which wild fish may be exposed.
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Affiliation(s)
- Jenna Corcoran
- University of Exeter, Biosciences, College of Life & Environmental Sciences, Exeter EX4 4QD, UK.
| | - Matthew J Winter
- AstraZeneca Global Environment, Brixham Laboratory, Freshwater Quarry, Brixham TQ5 8BA, UK.
| | - Anke Lange
- University of Exeter, Biosciences, College of Life & Environmental Sciences, Exeter EX4 4QD, UK.
| | - Rob Cumming
- AstraZeneca Global Environment, Brixham Laboratory, Freshwater Quarry, Brixham TQ5 8BA, UK.
| | - Stewart F Owen
- AstraZeneca Global Environment, Brixham Laboratory, Freshwater Quarry, Brixham TQ5 8BA, UK.
| | - Charles R Tyler
- University of Exeter, Biosciences, College of Life & Environmental Sciences, Exeter EX4 4QD, UK.
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Benedetti M, Giuliani ME, Regoli F. Oxidative metabolism of chemical pollutants in marine organisms: molecular and biochemical biomarkers in environmental toxicology. Ann N Y Acad Sci 2015; 1340:8-19. [DOI: 10.1111/nyas.12698] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Maura Benedetti
- Dipartimento di Scienze della Vita e dell'Ambiente; Università Politecnica delle Marche; Ancona Italy
| | - Maria Elisa Giuliani
- Dipartimento di Scienze della Vita e dell'Ambiente; Università Politecnica delle Marche; Ancona Italy
| | - Francesco Regoli
- Dipartimento di Scienze della Vita e dell'Ambiente; Università Politecnica delle Marche; Ancona Italy
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Madureira TV, Lopes C, Malhão F, Rocha E. Estimation of volume densities of hepatocytic peroxisomes in a model fish: catalase conventional immunofluorescence versus cytochemistry for electron microscopy. Microsc Res Tech 2014; 78:134-9. [PMID: 25431324 DOI: 10.1002/jemt.22455] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2014] [Accepted: 11/03/2014] [Indexed: 11/12/2022]
Abstract
Accurately accessing changes in the intracellular volumes (or numbers) of peroxisomes within a cell can be a lengthy task, because unbiased estimations can be made only by studies conducted under transmission electron microscopy. Yet, such information is often required, namely for correlations with functional data. The optimization and applicability of a fast and new technical proceeding based on catalase immunofluorescence was implemented herein by using primary hepatocytes from brown trout (Salmo trutta f. fario), exposed during 96 h to two distinct treatments (0.1% ethanol and 50 µM of 17α-ethynylestradiol). The time and cost efficiency, together with the results obtained by stereological analyses, specifically directed to the volume densities of peroxisomes, and additionally of the nucleus in relation to the hepatocyte, were compared with the well-established 3,3'-diaminobenzidine cytochemistry for electron microscopy. With the immuno technique it was possible to correctly distinguish punctate peroxisomal profiles, allowing the selection of the marked organelles for quantification. By both methodologies, a significant reduction in the volume density of the peroxisome within the hepatocyte was obtained after an estrogenic input. The most interesting point here was that the volume density ratios were quite correlated between both techniques. Overall, the immunofluorescence protocol for catalase was evidently faster, cheaper and provided reliable quantitative data that discriminated in the same way the compared groups. After this validation study, we recommend the use of catalase immunofluorescence as the first option for rapid screening of changes of the amount of hepatocytic peroxisomes, using their volume density as an indicator.
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Affiliation(s)
- Tânia Vieira Madureira
- ICBAS-Institute of Biomedical Sciences Abel Salazar, U. Porto-University of Porto, Laboratory of Histology and Embryology, Department of Microscopy, Rua Jorge Viterbo Ferreira 228, P 4050-313, Porto, Portugal; CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, U. Porto-University of Porto, Laboratory of Cellular, Molecular and Analytical Studies, Rua dos Bragas 289, P 4050-123, Porto, Portugal
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Houde M, Giraudo M, Douville M, Bougas B, Couture P, De Silva AO, Spencer C, Lair S, Verreault J, Bernatchez L, Gagnon C. A multi-level biological approach to evaluate impacts of a major municipal effluent in wild St. Lawrence River yellow perch (Perca flavescens). THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 497-498:307-318. [PMID: 25137380 DOI: 10.1016/j.scitotenv.2014.07.059] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 07/07/2014] [Accepted: 07/15/2014] [Indexed: 05/23/2023]
Abstract
The development of integrated ecotoxicological approaches is of great interest in the investigation of global concerns such as impacts of municipal wastewater effluents on aquatic ecosystems. The objective of this study was to investigate the effects of a major wastewater municipal effluent on fish using a multi-level biological approach, from gene transcription and enzyme activities to histological changes. Yellow perch (Perca flavescens) were selected based on their wide distribution, their commercial and recreational importance, and the availability of a customized microarray. Yellow perch were sampled upstream of a major municipal wastewater treatment plant (WWTP) and 4 km and 10 km downstream from its point of discharge in the St. Lawrence River (Quebec, Canada). Concentrations of perfluoroalkyl substances (PFASs), polybrominated diphenyl ethers (PBDEs) and metals/trace elements in whole body homogenates were comparable to those from other industrialized regions of the world. Genomic results indicated that the transcription level of 177 genes was significantly different (p<0.024) between exposed and non-exposed fish. Among these genes, 38 were found to be differentially transcribed at both downstream sites. Impacted genes were associated with biological processes and molecular functions such as immunity, detoxification, lipid metabolism/energy homeostasis (e.g., peroxisome proliferation), and retinol metabolism suggesting impact of WWTP on these systems. Moreover, antioxidant enzyme activities were more elevated in perch collected at the 4 km site. Biomarkers of lipid metabolism, biosynthetic activity, and aerobic capacities were significantly lower (p<0.05) in fish residing near the outfall of the effluent. Histological examination of the liver indicated no differences between sites. Correlations between PFAS, PBDE, and metal/trace element tissue concentrations and markers of peroxisomal proliferation, oxidative stress, and retinoid metabolism were found at the gene and cellular levels. Present results suggest that relating transcriptomic analyses to phenotypic responses is important to better understand impacts of environmental contamination on wild fish populations.
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Affiliation(s)
- Magali Houde
- Centre Saint-Laurent, Environment Canada, 105 McGill Street, Montreal, QC H2Y 2E7, Canada.
| | - Maeva Giraudo
- Centre Saint-Laurent, Environment Canada, 105 McGill Street, Montreal, QC H2Y 2E7, Canada.
| | - Mélanie Douville
- Centre Saint-Laurent, Environment Canada, 105 McGill Street, Montreal, QC H2Y 2E7, Canada.
| | - Bérénice Bougas
- Institut de biologie intégrative et des systèmes, Université Laval, 1030, avenue de la Médecine, Québec, QC G1V 0A6, Canada; Institut National de la Recherche Scientifique, Centre Eau Terre Environnement, 490 de la Couronne, Québec, QC G1K 9A9, Canada.
| | - Patrice Couture
- Institut National de la Recherche Scientifique, Centre Eau Terre Environnement, 490 de la Couronne, Québec, QC G1K 9A9, Canada.
| | - Amila O De Silva
- Canada Centre for Inland Waters, Environment Canada, 867 Lakeshore Road, P.O. Box 5050, Burlington, ON L7R 4A6, Canada.
| | - Christine Spencer
- Canada Centre for Inland Waters, Environment Canada, 867 Lakeshore Road, P.O. Box 5050, Burlington, ON L7R 4A6, Canada.
| | - Stéphane Lair
- Centre québécois sur la santé des animaux sauvages, Université de Montréal, C.P. 5000, St-Hyacinthe, QC J2S 7C6, Canada.
| | - Jonathan Verreault
- Centre de recherche en toxicologie de l'environnement (TOXEN), Département des sciences biologiques, Université du Québec à Montréal, C.P. 8888, Succursale Centre-ville, Montreal, QC H3C 3P8, Canada.
| | - Louis Bernatchez
- Institut de biologie intégrative et des systèmes, Université Laval, 1030, avenue de la Médecine, Québec, QC G1V 0A6, Canada.
| | - Christian Gagnon
- Centre Saint-Laurent, Environment Canada, 105 McGill Street, Montreal, QC H2Y 2E7, Canada.
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Effects of clofibric acid alone and in combination with 17β-estradiol on mRNA abundance in primary hepatocytes isolated from rainbow trout. Toxicol In Vitro 2014; 28:1106-16. [DOI: 10.1016/j.tiv.2014.05.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 05/11/2014] [Accepted: 05/14/2014] [Indexed: 12/08/2022]
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Ruiz P, Ortiz-Zarragoitia M, Orbea A, Vingen S, Hjelle A, Baussant T, Cajaraville MP. Short- and long-term responses and recovery of mussels Mytilus edulis exposed to heavy fuel oil no. 6 and styrene. ECOTOXICOLOGY (LONDON, ENGLAND) 2014; 23:861-879. [PMID: 24676935 DOI: 10.1007/s10646-014-1226-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/06/2014] [Indexed: 06/03/2023]
Abstract
Biomarkers have the potential to be used to assess the impact of anthropogenic discharges in marine waters. We have used a suite of biomarkers spanning from enzymatic to histopathological alterations and general stress responses to assess the short- and long-term impact on mussels Mytilus edulis of heavy fuel oil no. 6 and styrene. Mussels were exposed for 5 months, with a refilling of the exposure system, to a water soluble fraction of heavy fuel and, then, kept for a month in clean water for recovery. In a second experiment, mussels were exposed to styrene for 19 days and maintained in clean water for up to 4 months. Chemical body tissue levels reflected the weathering processes of these compounds. Acyl-CoA oxidase activity was induced in oil-exposed mussels after refilling, whereas styrene inhibited it after 19 days of exposure and after 2 weeks in clean water. Gamete development and alkali-labile phosphate levels suggest that neither oil nor styrene behaved as endocrine disruptors. Neutral red retention time was lower in treated groups than in controls. Lysosomal membrane stability was significantly reduced in exposed groups and recovered after withdrawal of oil but not after removal of styrene. Neither oil nor styrene exposure affected the condition index except for the reduction seen in mussels exposed to oil for 1 month. Biomarker response index discriminated exposed mussels, which showed higher values, and returned to control levels after recovery. Results obtained from these pilot experiments can help to identify relevant monitoring tools to assess the impact of oil and chemicals in marine spill scenarios.
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Affiliation(s)
- Pamela Ruiz
- CBET Research Group, Department Zoology and Animal Cell Biology, Science and Technology Faculty, Research Centre for Experimental Marine Biology and Biotechnology PIE, University of the Basque Country UPV/EHU, Sarriena z/g, 48940, Leioa, Basque Country, Spain
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Regoli F, Pellegrini D, Cicero AM, Nigro M, Benedetti M, Gorbi S, Fattorini D, D'Errico G, Di Carlo M, Nardi A, Gaion A, Scuderi A, Giuliani S, Romanelli G, Berto D, Trabucco B, Guidi P, Bernardeschi M, Scarcelli V, Frenzilli G. A multidisciplinary weight of evidence approach for environmental risk assessment at the Costa Concordia wreck: Integrative indices from Mussel Watch. MARINE ENVIRONMENTAL RESEARCH 2014; 96:92-104. [PMID: 24144855 DOI: 10.1016/j.marenvres.2013.09.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 09/18/2013] [Accepted: 09/21/2013] [Indexed: 06/02/2023]
Abstract
A complex framework of chemical, biological and oceanographic activities was immediately activated after the Costa Concordia shipwreck, to assess possible contamination events and the environmental impact during both emergency and wreck removal operations. In the present paper, we describe the results obtained with caged mussels, Mytilus galloprovincialis, chosen as bioindicator organisms to detect variations of bioavailability and the early onset of molecular and cellular effects (biomarkers). Seven translocation experiments were carried out during the first year from the incident, with organisms deployed at 2 depths in 3 different sites. After 4-6 weeks, tissue concentrations were measured for the main classes of potentially released chemicals (trace metals, polycyclic aromatic hydrocarbons, volatile and aliphatic hydrocarbons, polychlorinated biphenyls, halogenated pesticides, organotin compounds, brominated flame retardants, anionic surfactants); a wide battery of biomarkers covered responses indicative of exposure, detoxification, oxidative stress, cell damage and genotoxic effects. Results excluded serious contamination events or a consistent increase of environmental pollution although some episodic spills with reversible effects were detected. Data were elaborated within a quantitative weight of evidence (WOE) model which provided synthetic hazard indices for each typology of data, before their overall integration in an environmental risk index, which generally ranged from slight to moderate. The proposed WOE model was confirmed a useful tool to summarize large datasets of complex data in integrative indices, and to simplify the interpretation for stakeholders and decision makers, thus supporting a more comprehensive process of "site-oriented" management decisions.
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Affiliation(s)
- Francesco Regoli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy.
| | - David Pellegrini
- ISPRA, Istituto Superiore per la Protezione e la Ricerca Ambientale, Livorno, Italy
| | - Anna Maria Cicero
- ISPRA, Istituto Superiore per la Protezione e la Ricerca Ambientale, Roma, Italy
| | - Marco Nigro
- Dipartimento di Medicina Clinica e Sperimentale, Università di Pisa, Italy
| | - Maura Benedetti
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Stefania Gorbi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Daniele Fattorini
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Giuseppe D'Errico
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Marta Di Carlo
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Alessandro Nardi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
| | - Andrea Gaion
- ISPRA, Istituto Superiore per la Protezione e la Ricerca Ambientale, Livorno, Italy
| | - Alice Scuderi
- ISPRA, Istituto Superiore per la Protezione e la Ricerca Ambientale, Livorno, Italy
| | - Silvia Giuliani
- ISPRA, Istituto Superiore per la Protezione e la Ricerca Ambientale, Livorno, Italy
| | - Giulia Romanelli
- ISPRA, Istituto Superiore per la Protezione e la Ricerca Ambientale, Roma, Italy
| | - Daniela Berto
- ISPRA, Istituto Superiore per la Protezione e la Ricerca Ambientale, Chioggia, Italy
| | - Benedetta Trabucco
- ISPRA, Istituto Superiore per la Protezione e la Ricerca Ambientale, Roma, Italy
| | - Patrizia Guidi
- Dipartimento di Medicina Clinica e Sperimentale, Università di Pisa, Italy
| | | | - Vittoria Scarcelli
- Dipartimento di Medicina Clinica e Sperimentale, Università di Pisa, Italy
| | - Giada Frenzilli
- Dipartimento di Medicina Clinica e Sperimentale, Università di Pisa, Italy
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Gorbi S, Giuliani ME, Pittura L, d'Errico G, Terlizzi A, Felline S, Grauso L, Mollo E, Cutignano A, Regoli F. Could molecular effects of Caulerpa racemosa metabolites modulate the impact on fish populations of Diplodus sargus? MARINE ENVIRONMENTAL RESEARCH 2014; 96:2-11. [PMID: 24582326 DOI: 10.1016/j.marenvres.2014.01.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 01/27/2014] [Accepted: 01/31/2014] [Indexed: 06/03/2023]
Abstract
The green alga Caulerpa racemosa is a non-native, invasive species in the Mediterranean, and an important stressor for several native organisms. The algal capacity to produce secondary metabolites has been suggested to modulate success of the C. racemosa invasion, although many of potentially involved biological pathways still remain unexplored. In this respect, the aim of the present study was to investigate some molecular and cellular effects in the white seabream Diplodus sargus, an ecologically key species, which included the alien C. racemosa in its diet. Organisms were sampled in 2 seasonal periods from 3 locations of Southern Italy, each characterized by different levels of algal abundance. The level of caulerpin, one of the main secondary algal metabolites, in fish tissues has been used as an indicator of the trophic exposure to the seaweed and related with molecular and cellular responses. Chemical analyses indicated that fish from invaded sites can accumulate caulerpin, with liver concentrations ranging from a few up to hundreds of μg/g. Biomarkers analyses revealed only limited alterations of the main antioxidant defences, such as glutathione reductase and levels of glutathione; on the other hand, increased enzymatic activities of cytochrome P450, glutathione S-transferases and acyl CoA oxidase, as well as enhanced gene transcription for peroxisome proliferator-activated receptor alpha, cytochrome P4501A and vitellogenin 1 were observed in fish more exposed to C. racemosa as indicated by liver concentrations of caulerpin higher than 50 μg/g. Despite a direct molecular relationship with this algal metabolite could not be established, our results suggest that a C. racemosa enriched diet can modulate biotransformation and fatty acids metabolism of D. sargus. Assessing whether similar effects represent short- or long-term effects will be of crucial importance to understand consequences on the general health status and reproductive performance of exposed key fish species in the Mediterranean region.
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Affiliation(s)
- S Gorbi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - M E Giuliani
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - L Pittura
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - G d'Errico
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - A Terlizzi
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Lecce, Italy
| | - S Felline
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Lecce, Italy
| | - L Grauso
- Istituto di Chimica Biomolecolare, CNR, Naples, Italy
| | - E Mollo
- Istituto di Chimica Biomolecolare, CNR, Naples, Italy
| | - A Cutignano
- Istituto di Chimica Biomolecolare, CNR, Naples, Italy
| | - F Regoli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
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Regoli F, Giuliani ME. Oxidative pathways of chemical toxicity and oxidative stress biomarkers in marine organisms. MARINE ENVIRONMENTAL RESEARCH 2014; 93:106-17. [PMID: 23942183 DOI: 10.1016/j.marenvres.2013.07.006] [Citation(s) in RCA: 546] [Impact Index Per Article: 54.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 07/16/2013] [Accepted: 07/17/2013] [Indexed: 05/04/2023]
Abstract
The antioxidant system of marine organisms consists of low molecular weight scavengers and antioxidant enzymes which interact in a sophisticated network. Environmental pollutants can unbalance this system through closely related mechanisms, indirect relationships and cascade effects acting from pre-transcriptional to catalytic levels. Chemically-mediated pathways have the potential to greatly enhance intracellular formation of reactive oxygen species (ROS); at the same time, excessive levels of oxyradicals down-regulate xenobiotics metabolism, with important environmental implications for organisms exposed to chemical mixtures. Interactions between different classes of chemicals, generation of ROS and onset of oxidative stress conditions are partly modulated by changes in levels and functions of redox-sensitive signaling proteins and transcription factors. The Nrf2-Keap1 pathway still remains largely unexplored in marine organisms, despite the elevated degree of identity and similarity with homolog transcripts and proteins from different species. Recent evidences on transcriptional up-regulation of this system are consistent with the capability to provide a prolonged expression of ARE-regulated cytoprotective genes, and to efficiently switch off this mechanism when oxidative pressure decreases. Although gene expression and catalytic activities of antioxidants are often measured as alternative biomarkers in monitoring biological effects of contaminants, conflicting results between molecular and biochemical responses are quite frequent. The links between effects occurring at various intracellular levels can be masked by non-genomic processes affecting mRNA stability and protein turnover, different timing for transcriptional and translational mechanisms, metabolic capability of tissues, post-transcriptional modifications of proteins, bi-phasic responses of antioxidant enzymes and interactions occurring in chemical mixtures. In this respect, caution should be taken in monitoring studies where mRNA levels of antioxidants could represent a snapshot of cell activity at a given time, not an effective endpoint of environmental pollutants.
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Affiliation(s)
- Francesco Regoli
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Ranieri Monte d'Ago, Ancona 60100, Italy.
| | - Maria Elisa Giuliani
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Ranieri Monte d'Ago, Ancona 60100, Italy
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Holovska K, Almasiova V, Cigankova V. Ultrastructural changes in the rabbit liver induced by carbamate insecticide bendiocarb. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2014; 49:616-623. [PMID: 24901965 DOI: 10.1080/03601234.2014.911593] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Carbamates (CB) are used as insecticides and some of them have been registered as human drugs. The mechanism of CB poisoning involves reversible inhibition of acetylcholine esterase. In the present study, we investigated changes in liver ultrastructure in rabbits (Oryctolagus cuniculus) which were administered bendiocarb for 3, 10, 20, and 30 days. Rabbits in all experimental groups received capsules of bendiocarb (96% Bendiocarb, Bayer, Germany) per os daily at a dose of 5 mg/kg of body weight, and after day 11 received the same dose every 48 h. The observed changes were only moderate, focal, and the effect on the liver was not uniform. On the third day of the experiment, injured hepatocytes had dilated bile capillaries with reduced microvilli. There were no visible alterations in the intercellular contacts. Nuclei of these cells were irregular in shape. Many hepatocytes showed considerable increase in the number of peroxisomes. On day 10 of the experiment, the number of peroxisomes was reduced. Other changes, such as dilated rough endoplasmic reticulum and proliferation of smooth endoplasmic reticulum were observed on day 20. The number of lipid droplets in hepatocytes gradually increased. Usually they were present in low numbers, but on day 30 of the experiment their number increased significantly. They coalesced and formed a single lipid droplet which changed the shape of the nuclei. The results presented in this study indicate that both short and long-term administration of bendiocarb affects the liver ultrastructure. At the same time we also observed rapid onset of regeneration of the damaged tissue through activation of hepatocytes and oval cells.
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Affiliation(s)
- Katarina Holovska
- a Department of Anatomy, Histology and Physiology , University of Veterinary Medicine and Pharmacy , Kosice , Slovak Republic
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Cocci P, Mosconi G, Palermo FA. Effects of 4-nonylphenol on hepatic gene expression of peroxisome proliferator-activated receptors and cytochrome P450 isoforms (CYP1A1 and CYP3A4) in juvenile sole (Solea solea). CHEMOSPHERE 2013; 93:1176-81. [PMID: 23866175 DOI: 10.1016/j.chemosphere.2013.06.058] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 06/10/2013] [Accepted: 06/18/2013] [Indexed: 05/20/2023]
Abstract
The objective of the present study was to investigate the modulatory effects of the xenoestrogen 4-nonylphenol (4-NP) on hepatic peroxisome proliferator-activated receptor (PPAR) α and β gene expression patterns in relation to the detoxification pathways mediated by cytochrome P450 isoforms (CYP1A1 and CYP3A4). Waterborne 4-NP-induced effects were compared with those of 10(-8)M 17β-estradiol (E2) by using in vivo dose-response experiments carried out with juvenile sole (Solea solea). Compared to the controls, significantly higher levels of PPARα mRNAs were found in fish treated with E2 or 4-NP (10(-6)M) 3 d after exposure; the highest dose of 4-NP also caused up-regulation of retinoid X receptor α (RXRα) transcript levels. On the contrary, PPARβ gene expression was not modulated by E2 or 4-NP. Our data show that 4-NP-induced PPARα mRNA levels coincide with suppression of CYP1A1 and CYP3A4 expression similarly to E2. The results from these in vivo studies suggest the presence of cross-talk between nuclear receptor-mediated signaling pathways and PPARα that may result in modulation of CYP450 isoforms expression following 4-NP treatment in sole liver.
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Affiliation(s)
- Paolo Cocci
- School of Biosciences and Biotechnologies, University of Camerino, Via Gentile III Da Varano, I-62032 Camerino, MC, Italy
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Marigómez I, Zorita I, Izagirre U, Ortiz-Zarragoitia M, Navarro P, Etxebarria N, Orbea A, Soto M, Cajaraville MP. Combined use of native and caged mussels to assess biological effects of pollution through the integrative biomarker approach. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2013; 136-137:32-48. [PMID: 23643723 DOI: 10.1016/j.aquatox.2013.03.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 01/21/2013] [Accepted: 03/10/2013] [Indexed: 06/02/2023]
Abstract
Native and caged mussels were used in combination for the monitoring of pollution biological effects through an integrative biomarker approach. Mussels (Mytilus galloprovincialis) were deployed in cages in two well-known model localities with different pollution levels in the Basque coast. After 3 weeks caged and native mussels were collected from each site and a suite of effect and exposure biomarkers (from molecular/cellular to organism level) was applied and chemical contaminants (metals, PAHs, PCBs, phthalates and nonylphenol ethoxylates) were analytically determined. Integrative biomarker indices and pollutant indices of tissues were calculated. Several biomarkers used herein responded similarly in native and caged mussels, whereas others exhibited significant differences. Overall, biomarkers in-a-suite depicted site-specific profiles useful for the diagnostic of mussel health status and therefore for ecosystem health assessment in marine pollution biomonitoring. On the other hand, biomarkers and bioaccumulation exhibited different response times, which was especially evident when comparing biomarker and pollutant indices of tissues. The suite of biomarkers was more sensitive after caging (short-term response), whereas tissue pollutant concentrations were more sensitive in native mussels (long-term response). Thus, the combination of native and caged mussels is highly recommended to monitor biological effects of pollution in mussels through the integrative biomarker approach, especially in chronically polluted sites.
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Affiliation(s)
- Ionan Marigómez
- CBET Res Grp, Res Ctr Experimental Marine Biology & Biotechnology (PIE) & Zoology & Cell Biology Dept. (Science and Technology Fac.), Univ Basque Country (UPV/EHU), PO Box 644, E-48080 Bilbao, Basque Country, Spain.
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Raingeard D, Bilbao E, Cancio I, Cajaraville MP. Retinoid X receptor (RXR), estrogen receptor (ER) and other nuclear receptors in tissues of the mussel Mytilus galloprovincialis: Cloning and transcription pattern. Comp Biochem Physiol A Mol Integr Physiol 2013; 165:178-90. [DOI: 10.1016/j.cbpa.2013.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Revised: 02/25/2013] [Accepted: 03/02/2013] [Indexed: 01/11/2023]
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Castro LFC, Lobo-da-Cunha A, Rocha MJ, Urbatzka R, Rocha E. Pex11α in brown trout (Salmo trutta f. fario): Expression dynamics during the reproductive cycle reveals sex-specific seasonal patterns. Comp Biochem Physiol A Mol Integr Physiol 2013; 164:207-14. [DOI: 10.1016/j.cbpa.2012.09.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2010] [Revised: 09/08/2012] [Accepted: 09/10/2012] [Indexed: 11/28/2022]
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44
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Pak IV, Moiseenko TI, Sergienko LL, Chitaeva EA. Cytogenetic biomarkers for the assessment of the influence of pollution on natural fish populations. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2012; 85:82-87. [PMID: 22995782 DOI: 10.1016/j.ecoenv.2012.07.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 07/18/2012] [Accepted: 07/26/2012] [Indexed: 06/01/2023]
Abstract
Cytogenetic analysis methods were used to study the developing embryos of the following four Coregonidae species: Coregonus peled (Gmelin), Coregonus lavaretus (Gmelin), Coregonus nasus (Pallas) and Coregonus muksun (Pallas). Spawners of these species were selected from rivers and lakes of the Tyumen region (Russia) with different levels of pollution. The variability of the chromosomal aberration rate was analyzed during a monitoring period of more than 20 years. The level of chromosomal mutability in the embryonic cells of these fishes was found to have steadily increased during the observation period (1989-2011). The higher frequency of chromosomal mutations at different stages of embryogenesis in broad whitefish, C. nasus (Pallas), was noted in comparison with other species. The possible use of chromosomal mutation frequency as an indicator (biomarker) to characterize the state of a population is discussed.
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Affiliation(s)
- I V Pak
- Tyumen State University of Russia, Semakova Street 10, 625003 Tyumen, Russian Federation.
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Chen P, Li J, Liu P, Gao B, Wang Q, Li J. cDNA cloning, characterization and expression analysis of catalase in swimming crab Portunus trituberculatus. Mol Biol Rep 2012; 39:9979-87. [DOI: 10.1007/s11033-012-1826-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Accepted: 06/10/2012] [Indexed: 01/27/2023]
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Ruiz P, Ortiz-Zarragoitia M, Orbea A, Theron M, Le Floch S, Cajaraville MP. Responses of conventional and molecular biomarkers in turbot Scophthalmus maximus exposed to heavy fuel oil no. 6 and styrene. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2012; 116-117:116-128. [PMID: 22483509 DOI: 10.1016/j.aquatox.2012.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Revised: 01/17/2012] [Accepted: 02/05/2012] [Indexed: 05/31/2023]
Abstract
Several accidental spills in European coastal areas have resulted in the release of different toxic compounds into the marine environment, such as heavy fuel oil type no. 6 in the "Erika" and "Prestige" oil spills and the highly toxic styrene after the loss of the "Ievoli Sun". There is a clear need to develop tools that might allow assessing the biological impact of these accidental spills on aquatic organisms. The aim of the present study was to determine the short-term effects and recovery after exposure of juvenile fish (Scophthalmus maximus) to heavy fuel oil no. 6 and styrene by using a battery of molecular, cell and tissue level biomarkers. Turbots were exposed to styrene for 7 days and to the diluted soluble fraction of the oil (10%) for 14 days, and then allowed to recover in clean seawater for the same time periods. cyp1a1 transcript was overexpressed in turbots after 3 and 14 days of exposure to heavy fuel oil, whereas ahr transcription was not modulated after heavy fuel oil and styrene exposure. pparα transcription level was significantly up-regulated after 3 days of treatment with styrene. Liver activity of peroxisomal acyl-CoA oxidase (AOX) was significantly induced after 14 days of oil exposure, but it was not affected by styrene. Hepatocyte lysosomal membrane stability (LMS) was significantly reduced after exposure to both treatments, indicating that the tested compounds significantly impaired fish health. Both AOX and LMS values returned to control levels after the recovery period. No differences in gamete development were observed between fuel- or styrene- exposed fish and control fish, and vitellogenin plasma levels were low, suggesting no xenoestrogenic effects of fuel oil or styrene. While styrene did not cause any increase in the prevalence of liver histopathological alterations, prevalence of extensive cell vacuolization increased after exposure to heavy fuel oil for 14 days. In conclusion, the suite of selected biomarkers proved to be useful to determine the early impact of and recovery from exposure to tested compounds in turbot.
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Affiliation(s)
- Pamela Ruiz
- Laboratory of Cell Biology and Histology, Faculty of Science and Technology, University of the Basque Country, Sarriena z/g, E- 48940 Leioa, Basque Country, Spain
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Catalano B, Moltedo G, Martuccio G, Gastaldi L, Virno-Lamberti C, Lauria A, Ausili A. Can Hediste diversicolor (Nereidae, Polychaete) be considered a good candidate in evaluating PAH contamination? A multimarker approach. CHEMOSPHERE 2012; 86:875-882. [PMID: 22119417 DOI: 10.1016/j.chemosphere.2011.10.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Revised: 10/18/2011] [Accepted: 10/24/2011] [Indexed: 05/31/2023]
Abstract
The aim of this study was to develop a preliminary characterization of the biological responses of Hediste diversicolor to polycyclic aromatic hydrocarbons (PAHs) under controlled laboratory conditions. In order to test the effects of PAH exposure, a battery of biomarkers was applied to the polychaetes by exposing them to sublethal concentrations of benzo[a]pyrene (0.1 and 0.5 mg L(-1)) for 10d under laboratory conditions. The battery of biomarkers tested included oxidative stress biomarkers (glutathione content, enzymatic activities of catalase, glutathione S-transferases, glutathione reductase, glutathione peroxidases), total oxyradical scavenging capacity (TOSC) toward peroxyl and hydroxyl radicals and activity of acyl CoA oxidase (AOX) as a marker of peroxisome proliferation measured in the entire body; lipofuscin and neutral lipid accumulations and levels of Ca(2+)-ATPase activity analyzed in the intestinal epithelium; lysosomal membrane stability and genotoxic effects measured as DNA strand breaks and frequency of micronuclei in coelomocytes. Chemical analyses were also carried out to verify the polychaete's benzo[a]pyrene (B[a]P) bioaccumulation levels after the exposure period. The results obtained indicate that B[a]P caused significant changes in most of the parameters measured in H. diversicolor. Biological responses to the organic compound were particularly significant for the biomarkers measured in the intestinal epithelium and in coelomocytes, emphasizing that these tissues were more affected during our experimental conditions. Considering the key trophic role of this benthic species in estuarine and coastal ecosystems, this study confirmed that H. diversicolor is an appropriate bioindicator of organic contamination.
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Affiliation(s)
- B Catalano
- ISPRA, Italian National Institute for Environmental Protection and Research, Via di Casalotti 300, 00166 Rome, Italy.
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Benedetti M, Ciaprini F, Piva F, Onorati F, Fattorini D, Notti A, Ausili A, Regoli F. A multidisciplinary weight of evidence approach for classifying polluted sediments: Integrating sediment chemistry, bioavailability, biomarkers responses and bioassays. ENVIRONMENT INTERNATIONAL 2012; 38:17-28. [PMID: 21982029 DOI: 10.1016/j.envint.2011.08.003] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Revised: 07/13/2011] [Accepted: 08/08/2011] [Indexed: 05/27/2023]
Abstract
Evaluation of chemical bioavailability and onset of biological alterations is fundamental to assess the hazard of environmental pollutants, particularly when associated to sediments which need to be removed. In the present work, five sediment samples were collected from the Venice Lagoon and data from sediment chemistry were integrated with those of bioaccumulation of chemicals in European eel (Anguilla anguilla) exposed under laboratory conditions, responses of a wide battery of biomarkers, and standardized ecotoxicological bioassays. The overall results were elaborated within a recently developed, software-assisted weight of evidence (WOE) model which provides synthetic indices for each of considered line of evidence (LOE), before a general evaluation of sediment hazard. Levels of chemicals in sediments were not particularly elevated when compared to sediment quality guidelines of Venice Protocol. On the other hand, bioavailability was evident in some samples for Cd, Cu, Zn and, especially, polycyclic aromatic hydrocarbons. The ecotoxicological approach provided further evidence on the biological and potentially harmful effects due to released contaminants, and oxidative-mediated responses appeared of primary importance in modulating sublethal responses and the onset of cellular alterations. Biomarkers variations were sensitive, and more evident variations included significant changes of cytochrome P450 biotransformation pathway, antioxidant responses, onset of oxidative damages, lysosomal membrane stability and genotoxic effects. The results obtained from the battery of bioassays indicated that responses measured at organism level were in general accordance but less marked compared to the onset of sublethal changes measured through biomarkers. Overall this study revealed differences when comparing evaluations obtained from different LOEs, confirming the importance of considering synergistic effects between chemicals in complex mixtures. Compared to a qualitative pass-fail approach toward normative values, the proposed WOE model allowed a quantitative characterization of sediment hazard and a better discrimination of on the basis of various types of chemical and biological data.
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Affiliation(s)
- Maura Benedetti
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Ancona, Italy
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Pazmiño DM, Rodríguez-Serrano M, Romero-Puertas MC, Archilla-Ruiz A, Del Río LA, Sandalio LM. Differential response of young and adult leaves to herbicide 2,4-dichlorophenoxyacetic acid in pea plants: role of reactive oxygen species. PLANT, CELL & ENVIRONMENT 2011; 34:1874-89. [PMID: 21707656 DOI: 10.1111/j.1365-3040.2011.02383.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In this work the differential response of adult and young leaves from pea (Pisum sativum L.) plants to the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) (23 mm) applied by foliar spraying was investigated. The concentration of 2,4-D (23 mm) and the time of treatment (72 h) were previously optimized in order to visualize its toxic effects on pea plants. Under these conditions, the herbicide induced severe disturbances in mesophyll cells structure and proliferation of vascular tissue in young leaves and increased acyl-CoA oxidase (ACX), xanthine oxidase (XOD) and lipoxygenase (LOX) activities in young leaves, and only ACX and LOX in adult leaves. This situation produced reactive oxygen species (ROS) over-accumulation favoured by the absence of significant changes in the enzymatic antioxidants, giving rise to oxidative damages to proteins and membrane lipids. An increase of ethylene took place in both young and adult leaves and the induction of genes encoding the stress proteins, PRP4A and HSP 71,2, was observed mainly in young leaves. These results suggest that ROS overproduction is a key factor in the effect of high concentrations of 2,4-D, and ROS can trigger a differential response in young and adult leaves, either epinasty development in young leaves or senescence processes in adult tissues.
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Affiliation(s)
- Diana M Pazmiño
- Departamento de Bioquímica, Biología Celular y Molecular de Plantas, Estación Experimental del Zaidín, CSIC, Apartado 419, 18080 Granada, Spain
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Holth TF, Beckius J, Zorita I, Cajaraville MP, Hylland K. Assessment of lysosomal membrane stability and peroxisome proliferation in the head kidney of Atlantic cod (Gadus morhua) following long-term exposure to produced water components. MARINE ENVIRONMENTAL RESEARCH 2011; 72:127-134. [PMID: 21821279 DOI: 10.1016/j.marenvres.2011.07.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Revised: 07/05/2011] [Accepted: 07/11/2011] [Indexed: 05/31/2023]
Abstract
There is a need for sensitive biological effect methods by which to detect impacts of chronic exposure to low concentrations of contaminants. Two methods shown to be potentially useful for monitoring purposes in fish include lysosomal membrane stability and peroxisome proliferation. These biological endpoints were assessed in Atlantic cod (Gadus morhua) head kidney following exposure to a mixture of produced water components including polycyclic aromatic hydrocarbons, phenol, and alkylphenols. Lysosomal damage of head kidney cells occurred within the first two weeks and did not recover during the entire exposure period (32 weeks). Lysosomal membrane stability was not affected by gender and was responsive at low concentrations of contamination, indicating that lysosomal membrane stability measured in the head kidney could be a useful biomarker for effects of offshore pollution. Peroxisome proliferation, measured as acyl-CoA oxidase activity in the head kidney, appeared to be a potential biomarker in male cod exposed less than 16 weeks.
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Affiliation(s)
- T F Holth
- University of Oslo, Department of Biology, Norway.
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