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Salari Joo H, Johari SA, Behzadi Tayemeh M, Handy RD, Abaei H, Clark N, Seyedi J, Jones MA. Reproductive and whole-body toxicity of Ag-doped and -undoped ZIF-8 nanoparticles and the building blocks: An Artemia-based comparative bioassay. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 342:123141. [PMID: 38097159 DOI: 10.1016/j.envpol.2023.123141] [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: 07/19/2023] [Revised: 11/07/2023] [Accepted: 12/09/2023] [Indexed: 12/17/2023]
Abstract
The present research assessed, for the first time, toxicity of ZIF-8 (1 mg/L) and the building blocks (0.1 mg/L Zn2+ and 0.4 mg/L 2-methylimidazole (2-MIm)), besides that of AgNPs@ZIF-8 (0.25, 0.5, and 1 mg/L) and AgNO3 (0.1 mg/L) to aquatic organisms. Two consecutive generations (F0 & F1) of Artemia salina were exposed to these chemicals. All of the chemical treatments considerably caused mortality in F0, especially AgNPs@ZIF-8 and AgNO3, whereas F1 displayed notable tolerance and survived comparable to the control group, except in the case of AgNO3 treatment. Similarly, growth indices (weight, mainly in ZIF-8, Zn2+, and 2-MIm; length, in Ag-doped ZIF-8 and AgNO3) were significantly retarded in F0 and especially F1 of all treatments, and 2-MIm caused the greatest length retardation in F0. AgNPs@ZIF-8 (0.5 and 1 mg/L), 2-MIm, and AgNO3 postponed the ovary emergence in about 40%-60% of the exposed F0, and ZIF-8 delayed this phenomenon in some individuals of F0 and F1 up to 6 days. This temporal disturbance was also observed in time to first brood of almost all experimental F0 and F1 groups, with being over 80% of F1 exposed to ZIF-8, 2-MIm, and Zn2+, as well as about 50% of F0 treated with 2-MIm, and Zn2+. The highest neonate number was recorded for F0 and F1 exposed to AgNO3 and Zn2+, while ZIF-8 and, importantly, 2-MIm decreased the reproductivity to the lowest levels in both generations. Generally, the reproductive frequency was significantly decreased in all F0 and F1 treatments, especially 2-MIm, ZIF-8, AgNPs@ZIF-8 (0.25 & 1 mg/L). This study highlighted the neglected importance of 2-MIm in assessing overall toxicity of ZIF-8, and even other organic ligands of MOFs, and also filled a gap in the literature by investigating the potential effect of additives such as AgNPs on the toxicity of ZIF-8 and other MOFs.
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Affiliation(s)
- Hamid Salari Joo
- Department of Fisheries, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Kurdistan, Iran.
| | - Seyed Ali Johari
- Department of Fisheries, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Kurdistan, Iran.
| | | | - Richard D Handy
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, UK.
| | - Hesamoddin Abaei
- Department of Fisheries, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Kurdistan, Iran.
| | - Nathaniel Clark
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, UK.
| | - Javad Seyedi
- Research and Development (R&D), Ramooz Fish Farming Co., Bushehr, Iran.
| | - Megan Anne Jones
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, UK.
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Kim DH, Alayande AB, Lee JM, Jang JH, Jo SM, Jae MR, Yang E, Chae KJ. Emerging marine environmental pollution and ecosystem disturbance in ship hull cleaning for biofouling removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167459. [PMID: 37788783 DOI: 10.1016/j.scitotenv.2023.167459] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/19/2023] [Accepted: 09/27/2023] [Indexed: 10/05/2023]
Abstract
Numerous marine sessile organisms adhere to ship hulls and increase the sailing resistance. Antibiofouling paints are employed to maintain the ship performance. However, the chemicals employed for antifouling purposes are becoming increasingly diverse, lacking clear toxicological information. Particularly, the imperfect antibiofouling efficacies of these chemicals necessitate periodic hull cleaning to dislodge attached marine organisms. This hull cleaning process inadvertently releases a plethora of hazardous substances, including antibiofouling chemicals, heavy metals, and cleaning agents, alongside exotic microorganisms. This results in profound marine pollution and ecosystem disruption. Specifically, these exotic microorganisms pose a novel ecological threat in coastal waters. However, despite the gravity of ship hull cleaning-related issues, comprehensive investigations have been lacking, and international regulatory measures are gaining attention recently. Aiming to provide solutions to the emerging challenges associated with hull cleaning, this review endeavors to comprehensively address the biofouling organisms and their mechanisms, potential antifouling paint hazards, and effective hull cleaning methodologies.
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Affiliation(s)
- Dong-Ho Kim
- Department of Environmental Engineering, College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea
| | - Abayomi Babatunde Alayande
- Department of Marine Environmental Engineering, Gyeongsang National University, Gyeongsangnam-do 53064, Republic of Korea; Department of Environmental Engineering and Earth Sciences, Clemson University, Clemson, SC 29625, United States
| | - Jung-Min Lee
- Department of Environmental Engineering, College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea; Interdisciplinary Major of Ocean Renewable Energy Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea
| | - Jin-Hyeok Jang
- Department of Environmental Engineering, College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea
| | - Su-Min Jo
- Department of Environmental Engineering, College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea; Interdisciplinary Major of Ocean Renewable Energy Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea
| | - Mi-Ri Jae
- Department of Environmental Engineering, College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea; Interdisciplinary Major of Ocean Renewable Energy Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea
| | - Euntae Yang
- Department of Marine Environmental Engineering, Gyeongsang National University, Gyeongsangnam-do 53064, Republic of Korea.
| | - Kyu-Jung Chae
- Department of Environmental Engineering, College of Ocean Science and Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea; Interdisciplinary Major of Ocean Renewable Energy Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea.
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3
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Beg MA, Beg MA, Zargar UR, Sheikh IA, Bajouh OS, Abuzenadah AM, Rehan M. Organotin Antifouling Compounds and Sex-Steroid Nuclear Receptor Perturbation: Some Structural Insights. TOXICS 2022; 11:toxics11010025. [PMID: 36668751 PMCID: PMC9864748 DOI: 10.3390/toxics11010025] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 12/21/2022] [Indexed: 06/12/2023]
Abstract
Organotin compounds (OTCs) are a commercially important group of organometallic compounds of tin used globally as polyvinyl chloride stabilizers and marine antifouling biocides. Worldwide use of OTCs has resulted in their ubiquitous presence in ecosystems across all the continents. OTCs have metabolic and endocrine disrupting effects in marine and terrestrial organisms. Thus, harmful OTCs (tributyltin) have been banned by the International Convention on the Control of Harmful Antifouling Systems since 2008. However, continued manufacturing by non-member countries poses a substantial risk for animal and human health. In this study, structural binding of common commercial OTCs, tributyltin (TBT), dibutyltin (DBT), monobutyltin (MBT), triphenyltin (TPT), diphenyltin (DPT), monophenyltin (MPT), and azocyclotin (ACT) against sex-steroid nuclear receptors, androgen receptor (AR), and estrogen receptors (ERα, ERβ) was performed using molecular docking and MD simulation. TBT, DBT, DPT, and MPT bound deep within the binding sites of AR, ERα, and Erβ, showing good dock score, binding energy and dissociation constants that were comparable to bound native ligands, testosterone and estradiol. The stability of docking complex was shown by MD simulation of organotin/receptor complex with RMSD, RMSF, Rg, and SASA plots showing stable interaction, low deviation, and compactness of the complex. A high commonality (50-100%) of interacting residues of ERα and ERβ for the docked ligands and bound native ligand (estradiol) indicated that the organotin compounds bound in the same binding site of the receptor as the native ligand. The results suggested that organotins may interfere with the natural steroid/receptor binding and perturb steroid signaling.
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Affiliation(s)
- Mohd A. Beg
- Reproductive Biology Laboratory, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Md A. Beg
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia University, New Delhi 110025, India
| | - Ummer R. Zargar
- Department of Zoology, Government Degree College, Anantnag 192101, India
| | - Ishfaq A. Sheikh
- Reproductive Biology Laboratory, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Osama S. Bajouh
- Department of Obstetrics and Gynecology, Faculty of Medicine, King Abdulaziz University, Jeddah 21859, Saudi Arabia
| | - Adel M. Abuzenadah
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohd Rehan
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Beyer J, Song Y, Tollefsen KE, Berge JA, Tveiten L, Helland A, Øxnevad S, Schøyen M. The ecotoxicology of marine tributyltin (TBT) hotspots: A review. MARINE ENVIRONMENTAL RESEARCH 2022; 179:105689. [PMID: 35777303 DOI: 10.1016/j.marenvres.2022.105689] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 06/17/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
Tributyltin (TBT) was widely used as a highly efficient biocide in antifouling paints for ship and boat hulls. Eventually, TBT containing paints became globally banned when TBT was found to cause widespread contamination and non-target adverse effects in sensitive species, with induced pseudohermaphroditism in female neogastropods (imposex) being the best-known example. In this review, we address the history and the status of knowledge regarding TBT pollution and marine TBT hotspots, with a special emphasis on the Norwegian coastline. The review also presents a brief update on knowledge of TBT toxicity in various marine species and humans, highlighting the current understanding of toxicity mechanisms relevant for causing endocrine disruption in marine species. Despite observations of reduced TBT sediment concentrations in many marine sediments over the recent decades, contaminant hotspots are still prevalent worldwide. Consequently, efforts to monitor TBT levels and assessment of potential effects in sentinel species being potentially susceptible to TBT in these locations are still highly warranted.
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Affiliation(s)
- Jonny Beyer
- Norwegian Institute for Water Research (NIVA), Økernveien 94, NO-0579, Oslo, Norway.
| | - You Song
- Norwegian Institute for Water Research (NIVA), Økernveien 94, NO-0579, Oslo, Norway
| | - Knut Erik Tollefsen
- Norwegian Institute for Water Research (NIVA), Økernveien 94, NO-0579, Oslo, Norway
| | - John Arthur Berge
- Norwegian Institute for Water Research (NIVA), Økernveien 94, NO-0579, Oslo, Norway
| | - Lise Tveiten
- Norwegian Institute for Water Research (NIVA), Økernveien 94, NO-0579, Oslo, Norway
| | | | - Sigurd Øxnevad
- Norwegian Institute for Water Research (NIVA), Økernveien 94, NO-0579, Oslo, Norway
| | - Merete Schøyen
- Norwegian Institute for Water Research (NIVA), Økernveien 94, NO-0579, Oslo, Norway
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5
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Mendes ABA, Motta NAV, Lima GF, Autran LJ, Brazão SC, Magliano DC, Sepúlveda-Fragoso V, Scaramello CBV, Graceli JB, Miranda-Alves L, Brito FCF. Evaluation of the effects produced by subacute tributyltin administration on vascular reactivity of male wistar rats. Toxicology 2022; 465:153067. [PMID: 34902535 DOI: 10.1016/j.tox.2021.153067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/25/2021] [Accepted: 12/09/2021] [Indexed: 12/14/2022]
Abstract
Tributyltin chloride (TBT) is an organotin compound widely used in several high biocides for agroindustrial applications, such as fungicides, and marine antifouling paints leading to endocrine disrupting actions, such as imposex development in mollusks. In female rats, TBT has been shown to promote ovarian dysfunction, reduction of estrogen protective effect in the vascular morphophysiology, at least in part by oxidative stress consequences. Estrogen causes coronary endothelium-dependent and independent vasodilation. However, the TBT effects on cardiovascular system of male rats are not fully understood. The aim of this study was to evaluate the effects of subacute TBT exposure in aorta vascular reactivity from male wistar rats. Rats were randomly divided into three groups: control (C), TBT 500 ng/kg/day and TBT 1000 ng/kg/day. TBT was administered daily for 30 days by oral gavage. We found that TBT exposure enhanced testosterone serum levels and it was also observed obesogenic properties. TBT exposure evoked an increase in endothelium-dependent and independent phenylephrine-induced contraction, associated to an inhibition in eNOS activity. On the other hand, it was observed an enhancement of iNOS and NF-kB protein expression. We also observed an increase in oxidative stress parameters, such as superoxide dismutase (SOD) and catalase expression, and also an increase in malondialdehyde production. Finally, TBT exposure produced aortic intima-media thickness. Taken together, these data suggest a potential cardiovascular toxicological effect after subacute TBT exposure in male rats.
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MESH Headings
- Animals
- Aorta, Thoracic/drug effects
- Aorta, Thoracic/metabolism
- Aorta, Thoracic/pathology
- Aorta, Thoracic/physiopathology
- Lipid Peroxidation/drug effects
- Male
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Muscle, Smooth, Vascular/physiopathology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- NF-kappa B/metabolism
- Nitric Oxide Synthase Type II/metabolism
- Nitric Oxide Synthase Type III/metabolism
- Oxidative Stress/drug effects
- Phosphorylation
- Rats, Wistar
- Testosterone/blood
- Trialkyltin Compounds/toxicity
- Vasoconstriction/drug effects
- Rats
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Affiliation(s)
- Ana Beatriz Araújo Mendes
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Niteroi, RJ, Brazil; Postgraduate Program in Endocrinology, Faculty of Medicine, Postgraduate Program in Pharmacology and Medicinal Chemistry and Postgraduate Program in Morphological Sciences, Institute of Biomedical Sciences, Federal University of Rio De Janeiro (UFRJ), Brazil
| | - Nadia Alice Vieira Motta
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Niteroi, RJ, Brazil
| | - Gabriel Ferreira Lima
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Niteroi, RJ, Brazil
| | - Lis Jappour Autran
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Niteroi, RJ, Brazil
| | - Stephani Correia Brazão
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Niteroi, RJ, Brazil
| | - D'Angelo Carlo Magliano
- Laboratory of Morphological and Metabolic Analyses, Department of Morphology Biomedical Institute, Fluminense Federal University (UFF), Brazil
| | - Vinícius Sepúlveda-Fragoso
- Laboratory of Morphological and Metabolic Analyses, Department of Morphology Biomedical Institute, Fluminense Federal University (UFF), Brazil
| | - Christianne Brêtas Vieira Scaramello
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Niteroi, RJ, Brazil
| | - Jones Bernardes Graceli
- Laboratory of Endocrinology and Cell Toxicology, Department of Morphology/ CCS, Federal University of Espírito Santo (UFES), Brazil
| | - Leandro Miranda-Alves
- Postgraduate Program in Endocrinology, Faculty of Medicine, Postgraduate Program in Pharmacology and Medicinal Chemistry and Postgraduate Program in Morphological Sciences, Institute of Biomedical Sciences, Federal University of Rio De Janeiro (UFRJ), Brazil
| | - Fernanda Carla Ferreira Brito
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Niteroi, RJ, Brazil.
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Capitão AMF, Lopes-Marques M, Páscoa I, Sainath SB, Hiromori Y, Matsumaru D, Nakanishi T, Ruivo R, Santos MM, Castro LFC. An ancestral nuclear receptor couple, PPAR-RXR, is exploited by organotins. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 797:149044. [PMID: 34303232 DOI: 10.1016/j.scitotenv.2021.149044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 07/06/2021] [Accepted: 07/10/2021] [Indexed: 06/13/2023]
Abstract
Environmental chemicals have been reported to greatly disturb the endocrine and metabolic systems of multiple animal species. A recent example involves the exploitation of the nuclear receptor (NR) heterodimeric pair composed by PPAR/RXR (peroxisome proliferator-activated receptor/retinoid X receptor), which shows lipid perturbation in mammalian species. While gene orthologues of both of these receptors have been described outside vertebrates, no functional characterization of PPAR has been carried in protostome lineages. We provide the first functional analysis of PPAR in Patella sp. (Mollusca), using model obesogens such as tributyltin (TBT), triphenyltin (TPT), and proposed natural ligands (fatty acid molecules). To gain further insights, we used site-directed mutagenesis to PPAR and replaced the tyrosine 277 by a cysteine (the human homologous amino acid and TBT anchor residue) and an alanine. Additionally, we explored the alterations in the fatty acid profiles after an exposure to the model obesogen TBT, in vivo. Our results show that TBT and TPT behave as an antagonist of Patella sp. PPAR/RXR and that the tyrosine 277 is important, but not essential in the response to TBT. Overall, these results suggest a relation between the response of the mollusc PPAR-RXR to TBT and the lipid profile alterations reported at environmentally relevant concentrations. Our findings highlight the importance of comparative analysis between protostome and deuterostome lineages to decipher the differential impact of environmental chemicals.
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Affiliation(s)
- Ana M F Capitão
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto (U.Porto), Matosinhos, Portugal; Faculty of Sciences (FCUP), University of Porto (U.Porto), Department of Biology, Porto, Portugal
| | - Mónica Lopes-Marques
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto (U.Porto), Matosinhos, Portugal
| | - Inês Páscoa
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto (U.Porto), Matosinhos, Portugal
| | - S B Sainath
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto (U.Porto), Matosinhos, Portugal; Department of Biotechnology, Vikrama Simhapuri University, Nellore 524 003, AP, India
| | - Youhei Hiromori
- Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka, Japan; Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, Gifu, Japan
| | - Daisuke Matsumaru
- Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, Gifu, Japan
| | - Tsuyoshi Nakanishi
- Laboratory of Hygienic Chemistry and Molecular Toxicology, Gifu Pharmaceutical University, Gifu, Japan
| | - Raquel Ruivo
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto (U.Porto), Matosinhos, Portugal
| | - Miguel M Santos
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto (U.Porto), Matosinhos, Portugal; Faculty of Sciences (FCUP), University of Porto (U.Porto), Department of Biology, Porto, Portugal.
| | - L Filipe C Castro
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto (U.Porto), Matosinhos, Portugal; Faculty of Sciences (FCUP), University of Porto (U.Porto), Department of Biology, Porto, Portugal.
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7
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Abstract
Endocrine-disrupting chemicals (EDCs) are defined as chemicals that interfere with the function of the endocrine system. EDCs exert their hormonal effects through several mechanisms; modulating hormone receptors or changing metabolism of different hormones. EDCs also influence multiple signalling pathways while effecting the hormonal systems and possess complex dose-response curves. EDCs can exert deleterious effects on bone tissue through changing bone modelling and remodelling via altering bone paracrine hormone synthesis, the release of systemic hormones, cytokines, chemokines and growth factors, and effecting stem cell fate, as well as bone marrow mesenchymal stem cell differentiation. Evidence is accumulating of the bone disrupting effect of different groups of EDCs, such as; the perfluoroalkyl substances, the phthalate esters, the bisphenol A, the organotin compounds, the alkylphenols and the dioxin and dioxin-like compounds. This review highlights the recent discoveries of the effects of commonly found environmental chemicals on bone from basic molecular findings to clinical implications.
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Affiliation(s)
- Serap Turan
- Department of Pediatric Endocrinology and Diabetes, Marmara University School of Medicine, Istanbul, Turkey.
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8
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de Paulo DV, Mariz CF, de Melo Alves MK, Alves RN, Batista RM, Fillmann G, Carvalho PSM. Histological and Behavioral Toxicity of Tributyltin in the Tropical Guppy Poecilia vivipara. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2020; 39:1953-1963. [PMID: 32593223 DOI: 10.1002/etc.4808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/09/2020] [Accepted: 06/19/2020] [Indexed: 06/11/2023]
Abstract
The tropical estuarine guppy Poecilia vivipara was used to address fish early life stage toxicity caused by the antifouling contaminant tributyltin. Six-day-old P. vivipara were exposed for 7 d to control water and waterborne tributyltin at 15.8, 83.8, 716, and 818 ng tin (Sn) L-1 . After exposure, swimming, feeding, growth, and eye histological endpoints were evaluated. Histopathological analysis of the retinal pigment epithelium (RPE) indicated alterations in pigment positioning at all tributyltin concentrations. A dose-dependent increase in photoreceptor layer disorganization and iris melanin hyperpigmentation was verified, and high frequencies of RPE invaginations and iris epithelial cell atrophy were observed even at the lowest exposure concentration of 15.8 ng Sn L-1 . At the highest exposure level (818 ng Sn L-1 ) fish also presented reductions in swimming speed, swimming resistance, daily capture of Artemia nauplii, and growth in weight of 85, 60, 33, and 56% relative to controls, respectively. This association between retinal histopathology and reduced swimming and foraging behavior can reduce recruitment to the adult population. Environ Toxicol Chem 2020;39:1953-1963. © 2020 SETAC.
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Affiliation(s)
- Driele Ventura de Paulo
- Laboratório de Ecotoxicologia Aquática, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Célio Freire Mariz
- Laboratório de Ecotoxicologia Aquática, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Maria Karolaine de Melo Alves
- Laboratório de Ecotoxicologia Aquática, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Romulo Nepomuceno Alves
- Laboratório de Ecotoxicologia Aquática, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Rodrigo Moço Batista
- Laboratório de Microcontaminantes Orgânicos e Ecotoxicologia Aquática, Instituto de Oceanografia, Universidade Federal do Rio Grande, Rio Grande, Rio Grande do Sul, Brazil
| | - Gilberto Fillmann
- Laboratório de Microcontaminantes Orgânicos e Ecotoxicologia Aquática, Instituto de Oceanografia, Universidade Federal do Rio Grande, Rio Grande, Rio Grande do Sul, Brazil
| | - Paulo S M Carvalho
- Laboratório de Ecotoxicologia Aquática, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
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9
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Huang W, Wu Q, Xu F, Li L, Li J, Que H, Zhang G. Functional characterization of retinoid X receptor with an emphasis on the mediation of organotin poisoning in the Pacific oyster (Crassostrea gigas). Gene 2020; 753:144780. [DOI: 10.1016/j.gene.2020.144780] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 05/04/2020] [Accepted: 05/14/2020] [Indexed: 11/27/2022]
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10
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RXR Expression in Marine Gastropods with Different Sensitivity to Imposex Development. Sci Rep 2020; 10:9507. [PMID: 32528077 PMCID: PMC7289818 DOI: 10.1038/s41598-020-66402-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 05/07/2020] [Indexed: 01/05/2023] Open
Abstract
The superposition of male sexual characteristics in female marine gastropods (imposex) represents one of the clearest ecological examples of organotin-mediated endocrine disruption. Recent evidences suggest that signaling pathways mediated by members of the nuclear receptor superfamily, RXR and PPARγ, are involved in the development of this pseudohermaphroditic condition. Here, we identified significant differences in RXR expression in two caenogastropod species from Nuevo Gulf, Argentina, Buccinanops globulosus and Trophon geversianus, which present clear contrast in imposex incidence. In addition, B. globulosus males from a polluted and an unpolluted area showed differences in RXR expression. Conversely, PPARγ levels were similar between both analyzed species. These findings indicate specie-specific RXR and PPARγ expression, suggesting a major role of RXR in the induction of imposex.
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11
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Fonseca E, Ruivo R, Borges D, Franco JN, Santos MM, C. Castro LF. Of Retinoids and Organotins: The Evolution of the Retinoid X Receptor in Metazoa. Biomolecules 2020; 10:biom10040594. [PMID: 32290525 PMCID: PMC7225927 DOI: 10.3390/biom10040594] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/02/2020] [Accepted: 04/08/2020] [Indexed: 12/31/2022] Open
Abstract
Nuclear receptors (NRs) are transcription factors accomplishing a multiplicity of functions, essential for organismal homeostasis. Among their numerous members, the retinoid X receptor (RXR) is a central player of the endocrine system, with a singular ability to operate as a homodimer or a heterodimer with other NRs. Additionally, RXR has been found to be a critical actor in various processes of endocrine disruption resulting from the exposure to a known class of xenobiotics termed organotins (e.g., tributyltin (TBT)), including imposex in gastropod molluscs and lipid perturbation across different metazoan lineages. Thus, given its prominent physiological and endocrine role, RXR is present in the genomes of most extant metazoan species examined to date. Here, we expand on the phylogenetic distribution of RXR across the metazoan tree of life by exploring multiple next-generation sequencing projects of protostome lineages. By addressing amino acid residue conservation in combination with cell-based functional assays, we show that RXR induction by 9-cis retinoic acid (9cisRA) and TBT is conserved in more phyla than previously described. Yet, our results highlight distinct activation efficacies and alternative modes of RXR exploitation by the organotin TBT, emphasizing the need for broader species sampling to clarify the mechanistic activation of RXR.
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Affiliation(s)
- Elza Fonseca
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal; (E.F.); (R.R.); (D.B.); (J.N.F.)
- MARE—Marine and Environmental Sciences Centre, ESTM, 2520-637 Peniche, Portugal
| | - Raquel Ruivo
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal; (E.F.); (R.R.); (D.B.); (J.N.F.)
| | - Débora Borges
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal; (E.F.); (R.R.); (D.B.); (J.N.F.)
| | - João N. Franco
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal; (E.F.); (R.R.); (D.B.); (J.N.F.)
- MARE—Marine and Environmental Sciences Centre, ESTM, 2520-637 Peniche, Portugal
| | - Miguel M. Santos
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal; (E.F.); (R.R.); (D.B.); (J.N.F.)
- Department of Biology, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
- Correspondence: (M.M.S.); (L.F.C.C.); Tel.: +351-223-401-800 (M.M.S. or L.F.C.C.)
| | - L. Filipe C. Castro
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal; (E.F.); (R.R.); (D.B.); (J.N.F.)
- Department of Biology, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
- Correspondence: (M.M.S.); (L.F.C.C.); Tel.: +351-223-401-800 (M.M.S. or L.F.C.C.)
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12
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Yao W, Wei X, Guo H, Cheng D, Li H, Sun L, Wang S, Guo D, Yang Y, Si J. Tributyltin reduces bone mineral density by reprograming bone marrow mesenchymal stem cells in rat. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 73:103271. [PMID: 31627035 DOI: 10.1016/j.etap.2019.103271] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 10/03/2019] [Accepted: 10/04/2019] [Indexed: 06/10/2023]
Abstract
Tributyltin (TBT), a proven endocrine disrupter, was widely used in industry and agriculture. Previous research showed that TBT could alter the balance between osteogenesis and adipogenesis, which may have significant consequences for bone health. Herein, we exposed male rats to TBT chloride (TBTCl) to evaluate the deleterious effects of TBT on bone. Exposure to 50 μg kg-1 TBT resulted in a significant decrease in bone mineral density (BMD) at the femur diaphysis region in the rat. A dose-dependent increase in lipid accumulation and adipocyte number was observed in the bone marrow (BM) of the femur. Meanwhile, TBTCl treatment significantly enhanced the expression of PPARγ and attenuated the expression of Runx2 and β-catenin in BM. In addition, serum ALP activity of TBT-exposed rats also showed a dose-dependent decrease. These results suggest that TBT could reduce BMD via inhibition of the Wnt/β-catenin pathway and skew the adipo-osteogenic balance in the BM of rats.
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Affiliation(s)
- Wenhuan Yao
- Institute of Preventive Medicine, Shandong University, Jinan, China; Department of Toxicology, Shandong Center for Disease Control and Prevention, Jinan, China
| | - Xinglong Wei
- Institute of Preventive Medicine, Shandong University, Jinan, China; Department of Environmental Health, School of Public Health, Shandong University, Jinan, China
| | - Hao Guo
- Institute of Preventive Medicine, Shandong University, Jinan, China; Department of Environmental Health, School of Public Health, Shandong University, Jinan, China
| | - Dong Cheng
- Institute of Preventive Medicine, Shandong University, Jinan, China; Department of Toxicology, Shandong Center for Disease Control and Prevention, Jinan, China
| | - Hui Li
- Institute of Preventive Medicine, Shandong University, Jinan, China; Department of Toxicology, Shandong Center for Disease Control and Prevention, Jinan, China
| | - Limin Sun
- Orthopedics Department, Shandong Provincial Third Hospital, Jinan, China
| | - Shu'e Wang
- Institute of Preventive Medicine, Shandong University, Jinan, China; Department of Environmental Health, School of Public Health, Shandong University, Jinan, China
| | - Dongmei Guo
- Institute of Preventive Medicine, Shandong University, Jinan, China; Department of Environmental Health, School of Public Health, Shandong University, Jinan, China
| | - Yanli Yang
- Department of Environmental Health, School of Public Health, Shandong University, Jinan, China
| | - Jiliang Si
- Institute of Preventive Medicine, Shandong University, Jinan, China; Department of Environmental Health, School of Public Health, Shandong University, Jinan, China.
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13
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A liquid chromatography detector based on continuous-flow chemical vapor generation coupled glow discharge atomic emission spectrometry: Determination of organotin compounds in food samples. J Chromatogr A 2019; 1608:460406. [DOI: 10.1016/j.chroma.2019.460406] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 07/25/2019] [Accepted: 07/26/2019] [Indexed: 11/17/2022]
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14
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Ling L, Wen J, Tao L, Zhao M, Ge W, Wang L, Zhang J, Weng D. RIP1 and RIP3 contribute to Tributyltin-induced toxicity in vitro and in vivo. CHEMOSPHERE 2019; 218:589-598. [PMID: 30502697 DOI: 10.1016/j.chemosphere.2018.11.140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 11/21/2018] [Accepted: 11/22/2018] [Indexed: 06/09/2023]
Abstract
Tributyltin (TBT), a widely distributed environmental pollutant, is toxic to animals and human beings. Although its toxicity, especially the immunosuppressive effect, has been reported a lot, the underlying molecular mechanisms are still unclear. In this study, we investigated the mechanisms of TBT-induced cytotoxicity both in vitro and in vivo. TBT induced cell death in both J774A.1 macrophages and mouse bone marrow-derived macrophages (BMDMs) as measured by the LDH and Annexin V-FITC/PI dual staining assays. Pretreatment with RIP1 inhibitor Necrostatin-1 (Nec-1) or transfection with Rip1 siRNA significantly suppressed TBT-induced cytotoxicity in J774A.1 macrophages or human embryonic kidney cell line (HEK293 cells). TBT-induced cell death was also markedly inhibited in RIP3-/- BMDMs. In agreement with in vitro results, TBT-induced in vivo immunotoxic effects including leukocyte depletion and thymus atrophy were significantly attenuated in RIP3-/- mice or WT mice treated with Nec-1. Notably, the mortality rate induced by TBT was remarkably reduced in RIP3-/- mice (100% vs. 12.5% lethality) or Nec-1-treated mice (100% vs. 59.2% lethality) respectively. These results reveal a critical role of RIP1 and RIP3 in TBT-induced toxicity both in vitro and in vivo.
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Affiliation(s)
- Ling Ling
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China
| | - Jingjing Wen
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China
| | - Liang Tao
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China
| | - Mengshu Zhao
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China
| | - Wenhao Ge
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China
| | - Lei Wang
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China
| | - Jianfa Zhang
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China
| | - Dan Weng
- School of Environmental and Biological Engineering, Nanjing University of Science & Technology, 200 Xiaolingwei Street, Nanjing, 210094, China.
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15
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Mau A, Bingham JP, Soller F, Jha R. Maturation, spawning, and larval development in captive yellowfoot limpets ( Cellana sandwicensis). INVERTEBR REPROD DEV 2018. [DOI: 10.1080/07924259.2018.1505670] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Anthony Mau
- College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Jon-Paul Bingham
- College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Fabio Soller
- Aquatic Feeds and Nutrition Department, Oceanic Institute of Hawaii Pacific University, Waimanalo, HI, USA
| | - Rajesh Jha
- College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa, Honolulu, HI, USA
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16
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Rossato M, Costa MB, de Castro ÍB, Pinho GLL. Size, season and origin of gastropods matter in imposex assessments. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 159:324-331. [PMID: 29775828 DOI: 10.1016/j.ecoenv.2018.05.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 05/03/2018] [Accepted: 05/05/2018] [Indexed: 06/08/2023]
Abstract
Through controlled exposure to tributyltin (TBT), the effects of season, size, and population origin were evaluated on imposex incidence in Stramonita brasiliensis. Four experiments were carried out with organisms collected from three different sites on the Brazilian coast (Torres - Rio Grande do Sul, Farol de Santa Marta - Santa Catarina, and Aracruz - Espírito Santo). S. brasiliensis were anesthetized, sexed, measured, classified by size in small (< 30 mm), medium (≥ 30 to ≤ 40 mm), or big (> 40 mm) and injected in the foot muscle with 0.5 μg g-1 of TBT. Organisms were maintained during one month in aquariums with clear marine water under controlled laboratory conditions. One month after injection, the imposex assessments showed that the population from the southeast (tropical) region was more sensitive to TBT than the population from the south of Brazil (the temperate region). A greater sensitivity in the small and medium categories was observed. Females were also more susceptible to TBT when exposed during their reproductive period. Thus, the present study highlighted the need to ensure that intrinsic biological factors related to organisms are considered in such biomonitoring studies to avoid misinterpretation of results.
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Affiliation(s)
- Martina Rossato
- Instituto de Oceanografia, Laboratório de Microcontaminantes Orgânicos e Ecotoxicologia Aquática, Universidade Federal do Rio Grande, Campus Carreiros C.P. 474, Rio Grande, RS 96203-900, Brazil.
| | - Mércia Barcelos Costa
- Departamento de Ciências Biológicas. Laboratório de Malacologia, Universidade Federal do Espírito Santo, Vitoria, ES 29040-090, Brazil.
| | - Ítalo Braga de Castro
- Departamento de Ciências do Mar, Universidade Federal de São Paulo, Santos, SP 11030-400, Brazil.
| | - Grasiela Lopes Leães Pinho
- Instituto de Oceanografia, Laboratório de Microcontaminantes Orgânicos e Ecotoxicologia Aquática, Universidade Federal do Rio Grande, Campus Carreiros C.P. 474, Rio Grande, RS 96203-900, Brazil.
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17
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Farinetti A, Marraudino M, Ponti G, Panzica G, Gotti S. Chronic treatment with tributyltin induces sexually dimorphic alterations in the hypothalamic POMC system of adult mice. Cell Tissue Res 2018; 374:587-594. [PMID: 30078105 DOI: 10.1007/s00441-018-2896-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 07/20/2018] [Indexed: 12/11/2022]
Abstract
Tributyltin (TBT), an antifouling agent found in boat paints, is a common contaminant of marine and freshwater ecosystems. It is rapidly absorbed by organic materials and accumulated in many aquatic animals. Human exposure may depend on ingestion of contaminated food or by indirect exposure from household items containing organotin compounds. TBT is defined as an endocrine disruptor compound (EDC) because it binds to androgen receptors. Moreover, it is also included on the list of metabolic disruptors. The brain is a known target of TBT and this compound interferes with the orexigenic system, inducing a strong decrease in NPY expression in the hypothalamus. In the present experiment, we investigated the effect of a chronic treatment with TBT on the mouse anorexigenic system in both sexes, to look at the pro-opiomelanocortin (POMC) expression in the paraventricular (PVN), dorsomedial (DMN), ventromedial (VMN), and arcuate (ARC) hypothalamic nuclei. The results show a sexually dimorphic effect of TBT on both systems. TBT induced a significant decrease of POMC-positive structures only in female mice in DMN, ARC, and in PVN for both sexes. Apparently, these results show that TBT may interfere with the anorexigenic system in hypothalamic areas involved in the control of food intake, by inhibiting POMC in a sexually dimorphic way. In conclusion, in addition to having a direct effect on fat tissue, the effects of TBT as metabolic disruptor, may be due to gender-specific actions on both orexigenic and anorexigenic hypothalamic systems.
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Affiliation(s)
- Alice Farinetti
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy.,Laboratorio di Neuroendocrinologia, NICO-Neuroscience Institute Cavalieri Ottolenghi, Regione Gonzole, 10, Orbassano, Turin, 10043, Italy
| | - Marilena Marraudino
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy.,Laboratorio di Neuroendocrinologia, NICO-Neuroscience Institute Cavalieri Ottolenghi, Regione Gonzole, 10, Orbassano, Turin, 10043, Italy
| | - Giovanna Ponti
- Laboratorio di Neuroendocrinologia, NICO-Neuroscience Institute Cavalieri Ottolenghi, Regione Gonzole, 10, Orbassano, Turin, 10043, Italy.,Department of Veterinary Sciences, University of Turin, Grugliasco, Turin, Italy
| | - GianCarlo Panzica
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy.,Laboratorio di Neuroendocrinologia, NICO-Neuroscience Institute Cavalieri Ottolenghi, Regione Gonzole, 10, Orbassano, Turin, 10043, Italy
| | - Stefano Gotti
- Department of Neuroscience "Rita Levi Montalcini", University of Turin, Via Cherasco 15, 10126, Turin, Italy. .,Laboratorio di Neuroendocrinologia, NICO-Neuroscience Institute Cavalieri Ottolenghi, Regione Gonzole, 10, Orbassano, Turin, 10043, Italy.
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18
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Jones MRL, Ross PM. Recovery of the New Zealand muricid dogwhelk Haustrum scobina from TBT-induced imposex. MARINE POLLUTION BULLETIN 2018; 126:396-401. [PMID: 29421117 DOI: 10.1016/j.marpolbul.2017.11.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 11/11/2017] [Accepted: 11/16/2017] [Indexed: 06/08/2023]
Abstract
Levels of imposex in the muricid dogwhelk Haustrum scobina (Quoy & Gaimard, 1833) were assessed in two major New Zealand ports between 2015 and 2017, 12+years after the banning of TBT-based antifouling paints. In the 1990s imposex was common adjacent to port facilities and marinas in Waitemata and Tauranga Harbours, and several populations were found to be largely sterile and in decline. By 2015-17 imposex was largely absent from Tauranga Harbour and considerably reduced in Waitemata Harbour. In Waitemata Harbour imposex remained in areas adjacent to hull cleaning facilities and marinas, but at low levels and frequencies. These data highlight the success of the 2003 banning of TBT-based antifouling paints in reducing levels of imposex in New Zealand ports. However, these reductions in antifouling chemicals and subsequent population recoveries may have had unforseen effects within these harbours including changes in community structure and the arrival of non-indigenous species.
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Affiliation(s)
- M R L Jones
- Auckland University of Technology, Auckland, New Zealand.
| | - P M Ross
- Environmental Research Institute, University of Waikato, Tauranga, New Zealand.
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19
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André A, Ruivo R, Capitão A, Froufe E, Páscoa I, Costa Castro LF, Santos MM. Cloning and functional characterization of a retinoid X receptor orthologue in Platynereis dumerilii: An evolutionary and toxicological perspective. CHEMOSPHERE 2017; 182:753-761. [PMID: 28535483 DOI: 10.1016/j.chemosphere.2017.05.064] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 05/06/2017] [Accepted: 05/11/2017] [Indexed: 06/07/2023]
Abstract
In the present work we provide the first isolation and functional characterization of a RXR orthologue in an annelid species, the Platynereis dumerilii. Using an in vitro luciferase reporter assay we evaluated the annelid receptor ability to respond to ligand 9-cis-retinoic acid, TBT and TPT. Our results show that the annelid RXR responds to 9-cis-retinoic acid and to the organotins by activating reporter gene transcription. The findings suggest a conserved mode of action of the receptor in response to a common signaling molecule and modulation by organotin compounds between vertebrates and Lophotrochozoans.
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Affiliation(s)
- Ana André
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313, Porto, Portugal.
| | - Raquel Ruivo
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
| | - Ana Capitão
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; FCUP-Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
| | - Elsa Froufe
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
| | - Inês Páscoa
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - Luís Filipe Costa Castro
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; FCUP-Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal.
| | - Miguel Machado Santos
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Avenida General Norton de Matos s/n, 4450-208, Matosinhos, Portugal; FCUP-Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal.
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20
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Grilo TF, Rosa R. Intersexuality in aquatic invertebrates: Prevalence and causes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 592:714-728. [PMID: 28325592 DOI: 10.1016/j.scitotenv.2017.02.099] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 02/10/2017] [Accepted: 02/11/2017] [Indexed: 06/06/2023]
Abstract
This review is the first assembling information on intersexuality in aquatic invertebrates, from freshwater to estuarine and marine environments. Intersex is a condition whereby an individual of a gonochorist (separate sexes) species has oocytes or distinct stages of spermatogonia, at varying degrees of development, within the normal gonad of the opposite gender (i.e. spermatocytes in the ovary or oocytes in the testis), often involving alterations in the gonadal structure, reproductive tract or external genitalia. By the end of 2016 we found approximately 340 records of aquatic invertebrate species evidencing signs of intersexuality (or imposex), all comprised within the Phyla Mollusca and Arthropoda. Gastropod molluscs are by far the group with more examples documented (256 species), followed by crustaceans, i.e., decapods, copepods and amphipods. To our knowledge no further cases of intersexuality were known concerning other invertebrate taxa. Despite some reports suggesting that a baseline level of intersexuality may occur naturally in some populations, the causes are multifaceted and mostly linked with environmental contamination by estrogenic and organotin endocrine disrupting chemicals (EDCs), parasitism, and genetic/environmental sex determination abnormalities. A more comprehensive discussion about the origin of intersexuality, prevalence and causes, knowledge gaps and future research directions in the light of new omics scientific advances (genomics, proteomics and transcriptomics) is also provided. The lack of studies linking molecular responses of invertebrate intersex individuals to multiple stressors represents a true challenge to be further investigated in the future.
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Affiliation(s)
- Tiago F Grilo
- MARE - Marine and Environmental Sciences Centre, Laboratório Marítimo da Guia, Faculdade de Ciências da Universidade de Lisboa, Av. Nossa Senhora do Cabo 939, 2750-374 Cascais, Portugal.
| | - Rui Rosa
- MARE - Marine and Environmental Sciences Centre, Laboratório Marítimo da Guia, Faculdade de Ciências da Universidade de Lisboa, Av. Nossa Senhora do Cabo 939, 2750-374 Cascais, Portugal
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21
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Smolarz K, Hallmann A, Zabrzańska S, Pietrasik A. Elevated gonadal atresia as biomarker of endocrine disruptors: Field and experimental studies using Mytilus trossulus (L.) and 17-alpha ethinylestradiol (EE2). MARINE POLLUTION BULLETIN 2017; 120:58-67. [PMID: 28477987 DOI: 10.1016/j.marpolbul.2017.04.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 04/03/2017] [Accepted: 04/05/2017] [Indexed: 06/07/2023]
Abstract
In the present work we compared the type and frequency of gonadal abnormalities among Mytilus trossulus populations from the Gulf of Gdańsk, Baltic Sea. Observed histopathologies were grouped as regressive changes (RC, gonadal atresia (GA) and regression (GR)), progressive changes (PC, gonadal tumors) and intersex. Sex-based and spatial differences in frequency of RC were found, with the highest frequency of RC and PC found in mussels from polluted station B followed by mussels from station A located near a purification plant outlet. Bivalves from the reference area had the lowest frequency of RC. In order to confirm biomarker applicability of RC, an exposure experiment with model xenoestrogen 17α-ethinylestradiol (EE2) was performed. The exposure of M. trossulus to 50 and 500ngdL-1 of EE2 resulted in an increased frequency of gonadal regression and atresia, including melanized hemocytes infiltration in seminiferous tubules. We thus suggest that these changes can serve as biomarkers of endocrine disrupting compounds in biomonitoring studies.
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Affiliation(s)
- Katarzyna Smolarz
- Department of Marine Ecosystem Functioning, University of Gdańsk, Al. Piłsudskiego 46, 81-378 Gdynia, Poland.
| | - Anna Hallmann
- Department of Pharmaceutical Biochemistry, Medical University of Gdańsk, ul. Dębinki 1, 80-211 Gdańsk, Poland
| | - Sandra Zabrzańska
- Department of Marine Ecosystem Functioning, University of Gdańsk, Al. Piłsudskiego 46, 81-378 Gdynia, Poland
| | - Anna Pietrasik
- Department of Marine Biotechnology, University of Gdańsk, Al. Piłsudskiego 46, 81-378 Gdynia, Poland
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22
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Martínez ML, Piol MN, Sbarbati Nudelman N, Verrengia Guerrero NR. Tributyltin bioaccumulation and toxic effects in freshwater gastropods Pomacea canaliculata after a chronic exposure: field and laboratory studies. ECOTOXICOLOGY (LONDON, ENGLAND) 2017; 26:691-701. [PMID: 28409416 DOI: 10.1007/s10646-017-1801-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/01/2017] [Indexed: 05/29/2023]
Abstract
Freshwater samples and gastropod mollusks (Pomacea canaliculata) were collected at 5 sampling stations located along the lower Río de la Plata basin, Argentina, to assess the extent of tributyltin (TBT) contamination. Determined data revealed the presence of TBT and some of its breakdown products (dibutyltin: DBT, and monobutyltin: MBT) in all freshwater samples and also in soft tissues of P. canaliculata gastropods. Chronic bioassays (6 months) were performed using female gastropods that had been reared under laboratory conditions and exposed to a similar TBT concentration than the value determined in freshwater samples (1 µg L-1). The aims of this study were to evaluate the extent of TBT accumulation, the tissue distribution, and the effects on selected biomarkers (activity of superoxide dismutasa: SOD, activity of catalase: CAT, levels of total glutathione: t-GSH, lipid peroxidation, and activity of acetylcholinesterase: AChE). Gonads presented the highest accumulation, followed by the cephalopedal region, albumin gland, and finally hepatopancreas. Both metabolites, DBT and MBT, were also found. All exposed female animals presented development of a penis reflecting the potential of TBT as an endocrine disrupting chemical for this gastropod species. Results on the selected biomarkers confirmed additional adverse effects induced by TBT. An increase in CAT activity and changes in t-GSH levels are indicative of alterations on the cellular redox status. The inhibition of AChE could reflect signs of neurotoxicity. Altogether, these results reveal a negative impact on the health of this gastropod population.
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Affiliation(s)
- María L Martínez
- Facultad de Ciencias Exactas y Naturales, Dpto. de Química Orgánica, Universidad de Buenos Aires, 3° piso, Pabellón II, Buenos Aires, Argentina
- Facultad de Ciencias Exactas y Naturales, Dpto. de Química Biológica, Toxicología y Química Legal, Universidad de Buenos Aires, 4° piso, Pabellón II, Buenos Aires, Argentina
| | - María N Piol
- Facultad de Ciencias Exactas y Naturales, Dpto. de Química Biológica, Toxicología y Química Legal, Universidad de Buenos Aires, 4° piso, Pabellón II, Buenos Aires, Argentina
| | - Norma Sbarbati Nudelman
- Facultad de Ciencias Exactas y Naturales, Dpto. de Química Orgánica, Universidad de Buenos Aires, 3° piso, Pabellón II, Buenos Aires, Argentina
| | - Noemí R Verrengia Guerrero
- Facultad de Ciencias Exactas y Naturales, Dpto. de Química Biológica, Toxicología y Química Legal, Universidad de Buenos Aires, 4° piso, Pabellón II, Buenos Aires, Argentina.
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Lei K, Qiao F, Liu Q, Wei Z, An L, Qi H, Cui S, LeBlanc GA. Preliminary evidence for snail deformation from a Eutrophic lake. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 53:219-226. [PMID: 28667896 DOI: 10.1016/j.etap.2017.06.019] [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: 05/12/2017] [Revised: 06/09/2017] [Accepted: 06/20/2017] [Indexed: 06/07/2023]
Abstract
The incidence of deformities in snails Bellamya aeruginosa was investigated in a typical eutrophicated lake - Taihu Lake. A total of 15 105 specimens were collected, and 0.18-0.93% of the snails exhibited abnormal tentacle bifurcations. Abnormally developed snails were all female and were found in regions with relatively high Chlorophyll a levels (12.40±7.23μg/L). As tentacles are sexually dimorphic in B. aeruginosa, we postulated that factors associated with eutrophication might be responsible for the partial masculinization of tentacles in females. Differential gene expression analyses revealed that a number of unigenes were significantly up-regulated or down-regulated in snails sampled from three locations having high Chlorophyll a levels compared with snails sampled from the region with lower Chlorophyll a level (2.95μg/L). Thus, transcriptomic profiling revealed potential molecular signal of eutrophication that can lead to developmental abnormalities in this species.
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Affiliation(s)
- Kun Lei
- State Environmental Protection Key Laboratory of Estuarine and Coastal Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Fei Qiao
- State Environmental Protection Key Laboratory of Estuarine and Coastal Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Qing Liu
- State Environmental Protection Key Laboratory of Estuarine and Coastal Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Zhanliang Wei
- State Environmental Protection Key Laboratory of Estuarine and Coastal Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Lihui An
- State Environmental Protection Key Laboratory of Estuarine and Coastal Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Hongli Qi
- Tianjin key Laboratory of Aqua-Ecology and Aquaculture, College of Fisheries, Tianjin Agricultural University, Tianjin 300384, China
| | - Song Cui
- School of Water Conservancy and Civil Engineering, Northeast Agricultural University, HarBin 150030, China
| | - Gerald A LeBlanc
- Department of Biological Sciences, North Carolina State University, Raleigh, NC 27606, USA
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Tributyltin exposure at noncytotoxic doses dysregulates pancreatic β-cell function in vitro and in vivo. Arch Toxicol 2017; 91:3135-3144. [PMID: 28180948 DOI: 10.1007/s00204-017-1940-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 01/19/2017] [Indexed: 12/14/2022]
Abstract
Tributyltin (TBT) is an endocrine disruptor. TBT can be found in food and in human tissues and blood. Several animal studies revealed that organotins induced diabetes with decreased insulin secretion. The detailed effect and mechanism of TBT on pancreatic β-cell function still remain unclear. We investigated the effect and mechanism of TBT exposure at noncytotoxic doses relevant to human exposure on β-cell function in vitro and in vivo. The β-cell-derived RIN-m5F cells and pancreatic islets from mouse and human were treated with TBT (0.05-0.2 μM) for 0.5-4 h. Adult male mice were orally exposed to TBT (25 μg/kg/day) with or without antioxidant N-acetylcysteine (NAC) for 1-3 weeks. Assays for insulin secretion and glucose metabolism were carried out. Unlike previous studies, TBT at noncytotoxic concentrations significantly increased glucose-stimulated insulin secretion and intracellular Ca2+ ([Ca2+]i) in β-cells. The reactive oxygen species (ROS) production and phosphorylation of protein kinase C (PKC-pan) and extracellular signal-regulated kinase (ERK)1/2 were also increased. These TBT-triggered effects could be reversed by antiestrogen ICI182780 and inhibitors of ROS, [Ca2+]i, and PKC, but not ERK. Similarly, islets treated with TBT significantly increased glucose-stimulated insulin secretion, which could be reversed by ICI182780, NAC, and PKC inhibitor. Mice exposed to TBT for 3 weeks significantly increased blood glucose and plasma insulin and induced glucose intolerance and insulin resistance, which could be reversed by NAC. These findings suggest that low/noncytotoxic doses of TBT induce insulin dysregulation and disturb glucose homeostasis, which may be mediated through the estrogen receptor-regulated and/or oxidative stress-related signaling pathways.
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25
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Endocrine Disruption and In Vitro Ecotoxicology: Recent Advances and Approaches. IN VITRO ENVIRONMENTAL TOXICOLOGY - CONCEPTS, APPLICATION AND ASSESSMENT 2017; 157:1-58. [DOI: 10.1007/10_2016_2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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26
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Anastasiou TI, Chatzinikolaou E, Mandalakis M, Arvanitidis C. Imposex and organotin compounds in ports of the Mediterranean and the Atlantic: Is the story over? THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 569-570:1315-1329. [PMID: 27425438 DOI: 10.1016/j.scitotenv.2016.06.209] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/10/2016] [Accepted: 06/26/2016] [Indexed: 06/06/2023]
Abstract
Organotin compounds are toxic substances released into the marine environment from antifouling paints. Sixty-two years following their first application and 9years after the complete ban on their use as biocides in 2003 (EC No. 782/2003), their negative impact on mollusks was still evident, as illustrated by imposex (i.e. the masculinization of female gastropods). This phenomenon is widely used to investigate tributyltin (TBT) pollution, with Hexaplex trunculus and Nassarius nitidus being considered as sensitive bioindicators. H. trunculus specimens and sediment samples collected from the ports of Cagliari (Sardinia), El Kantaoui (Tunisia) and Olhão (Portugal), along with N. nitidus individuals from the port of Faro (Portugal), were used for the assessment of imposex intensity and organotin pollution in these areas. High imposex frequency and organotin concentrations (TBT, triphenyltin (TPhT) and their degradation products) were observed, especially in Sardinia, implying that these chemicals remain a significant pollution issue in the specific Mediterranean ports. Moreover, the highly significant relationship established between penis length of imposex-affected females H. trunculus and TBT/TPhT concentrations offers a rapid and nonsacrificial proxy model for assessing the impact of organotins in coastal environments. Finally, the complementary use of more than one TBT bioindicator is advised in order to obtain more accurate results in detailed monitoring studies of TBT pollution.
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Affiliation(s)
- Thekla I Anastasiou
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Center for Marine Research, Heraklion, 71003, Crete, Greece.
| | - Eva Chatzinikolaou
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Center for Marine Research, Heraklion, 71003, Crete, Greece.
| | - Manolis Mandalakis
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Center for Marine Research, Heraklion, 71003, Crete, Greece.
| | - Christos Arvanitidis
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Center for Marine Research, Heraklion, 71003, Crete, Greece.
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Ip JCH, Leung PTY, Ho KKY, Qiu JW, Leung KMY. De novo transcriptome assembly of the marine gastropod Reishia clavigera for supporting toxic mechanism studies. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 178:39-48. [PMID: 27450239 DOI: 10.1016/j.aquatox.2016.07.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 07/06/2016] [Accepted: 07/14/2016] [Indexed: 06/06/2023]
Abstract
The intertidal whelk Reishia clavigera is commonly used as a biomonitor of chemical contamination in the marine environment along Western Pacific region, and as a model for mechanistic studies of organotin-mediated imposex development. However, limited genomic resources of R. clavigera have restricted its role for the investigation of molecular mechanisms of such endocrine disruptions. This study, therefore, aimed to establish tissue-specific transcriptomes of the digestive gland, gonad, head ganglia, penis and the remaining body part of the male and female R. clavigera. By combining the results, a global transcriptome was obtained. A total of 578,134,720 high-quality filtered reads were obtained using Illumina sequencing. The R. clavigera transcriptome comprised of 38,466 transcripts and 32,798 unigenes with predicted open reading frames. The average length of transcripts was 1,709bp with N50 of 2,236bp. Based on sequence similarity searches against public databases, 28,657 transcripts and 24,403 unigenes had at least one BLAST hit. There were 17,530 transcripts and 14,897 unigenes annotated with at least one Gene Ontology (GO) term. Moreover, 5,776 transcripts and 5,137 unigenes were associated with 333 Kyoto Encyclopaedia of Genes and Genomes (KEGG) pathways. The numbers of unigenes were similar among the five target tissues and between sexes, but tissue-specific expression profiles were revealed by multivariate analyses. Based on the functional annotation, putative steroid hormone-associated unigenes were identified. In particular, we highlighted the presence of steroid hormone receptor homologues that could be the targets for mechanistic studies of the organotin-mediated imposex development in marine gastropods. This newly generated transcriptome assembly of R. clavigera provides a valuable molecular resource for ecotoxicological and environmental genomic studies.
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Affiliation(s)
- Jack C H Ip
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Priscilla T Y Leung
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Kevin K Y Ho
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - J W Qiu
- State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; Department of Biology, Hong Kong Baptist University, Waterloo Road, Kowloon, Hong Kong, China
| | - Kenneth M Y Leung
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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28
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Laranjeiro F, Sánchez-Marín P, Barros A, Galante-Oliveira S, Moscoso-Pérez C, Fernández-González V, Barroso C. Triphenyltin induces imposex in Nucella lapillus through an aphallic route. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 175:127-131. [PMID: 27016628 DOI: 10.1016/j.aquatox.2016.03.005] [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: 09/17/2015] [Revised: 02/14/2016] [Accepted: 03/04/2016] [Indexed: 06/05/2023]
Abstract
Triphenyltin (TPT) was used until recently as a biocide in antifouling systems and nowadays is still applied as an agriculture pesticide in some countries. This compound is known to cause imposex (the imposition of male characters in females of gastropod molluscs) in a very limited number of species, when compared with tributyltin (TBT), the universally recognized imposex-causing agent. In this study, we tested if TPT could induce imposex in females of the dog-whelk Nucella lapillus. Experimental groups of 40 females were injected with a volume of 2μL/g of soft tissue wet weight (ww) of one of the following treatments, using DMSO as a solvent carrier: DMSO (solvent control); 1μg/g ww of TBT (positive control); 0.2, 1 and 5μg/g ww of TPT and a non-injected group (negative control). Concentrations were confirmed in the organism tissues by means of chemical analyses of a pool of 10 specimens at T0 and then after the imposex analysis at T56days. After 8-week trial, results pointed out statistically significant differences between treatments, with both TPT and TBT positively inducing imposex. However, imposex development in TPT-injected females differed from that of TBT, since females that developed imposex presented an aphallic condition (no penis development) while the TBT-treated females developed standard imposex (with penis formation). These results suggest that TPT and TBT act differently in the sequential process of female masculinization, casting new insights about the hypothetical pathways underlying imposex development.
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Affiliation(s)
- Filipe Laranjeiro
- Biology Department and CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
| | - Paula Sánchez-Marín
- Biology Department and CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; Department of Animal Biology and Ecology, University of Vigo, E-36310 Vigo, Spain
| | - Ana Barros
- Biology Department, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Susana Galante-Oliveira
- Biology Department and CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Carmen Moscoso-Pérez
- Grupo Química Analítica Aplicada (QANAP), Instituto Universitario de Medio Ambiente (IUMA), Centro de Investigacións Científicas Avanzadas (CICA), Departamento de Química Analítica, Universidade da Coruña, Campus de A Coruña, 15071 A Coruña, Spain
| | - Verónica Fernández-González
- Grupo Química Analítica Aplicada (QANAP), Instituto Universitario de Medio Ambiente (IUMA), Centro de Investigacións Científicas Avanzadas (CICA), Departamento de Química Analítica, Universidade da Coruña, Campus de A Coruña, 15071 A Coruña, Spain
| | - Carlos Barroso
- Biology Department and CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
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29
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Rossato M, Castro IB, Paganini CL, Colares EP, Fillmann G, Pinho GLL. Sex steroid imbalances in the muricid Stramonita haemastoma from TBT contaminated sites. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:7861-7868. [PMID: 26758306 DOI: 10.1007/s11356-015-5942-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 12/07/2015] [Indexed: 06/05/2023]
Abstract
Imposex incidence, organotin tissue levels, and sex steroid (free and esterified testosterone and estradiol) levels were assessed in Stramonita haemastoma from Babitonga Bay (Santa Catarina State, Southern Brazil). The imposex levels showed a reduction when compared to a previous evaluation performed in the same area. In spite of that, the detected imposex incidence indicated the occurrence of tributyltin (TBT) inputs that were still able to produce endocrine disruption in local gastropods. In addition, a high level of organotins was observed in tissues of imposexed females. These females also showed a hormonal imbalance, especially in the total testosterone/total estradiol ratio. These findings obtained under realistic field conditions suggest that the steroid pathway could be responsible by the imposex induction after exposure to TBT. In this case, measurements of sex steroid levels can be an additional evidence for monitoring sites and impose affected gastropod populations.
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Affiliation(s)
- M Rossato
- Instituto de Oceanografia. Laboratório de Microcontaminantes Orgânicos e Ecotoxicologia Aquática, Universidade Federal do Rio Grande, C.P. 474, Rio Grande, RS, 96203-900, Brazil.
| | - I B Castro
- Instituto de Oceanografia. Laboratório de Microcontaminantes Orgânicos e Ecotoxicologia Aquática, Universidade Federal do Rio Grande, C.P. 474, Rio Grande, RS, 96203-900, Brazil.
- Departamento de Ciências do Mar, Universidade Federal de São Paulo, Santos, SP, 11030-400, Brazil.
| | - C L Paganini
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, C.P. 474, Rio Grande, RS, 96203-900, Brazil
| | - E P Colares
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, C.P. 474, Rio Grande, RS, 96203-900, Brazil
| | - G Fillmann
- Instituto de Oceanografia. Laboratório de Microcontaminantes Orgânicos e Ecotoxicologia Aquática, Universidade Federal do Rio Grande, C.P. 474, Rio Grande, RS, 96203-900, Brazil
| | - G L L Pinho
- Instituto de Oceanografia. Laboratório de Microcontaminantes Orgânicos e Ecotoxicologia Aquática, Universidade Federal do Rio Grande, C.P. 474, Rio Grande, RS, 96203-900, Brazil
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30
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Dimastrogiovanni G, Fernandes D, Bonastre M, Porte C. Progesterone is actively metabolized to 5α-pregnane-3,20-dione and 3β-hydroxy-5α-pregnan-20-one by the marine mussel Mytilus galloprovincialis. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 165:93-100. [PMID: 26026673 DOI: 10.1016/j.aquatox.2015.05.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 05/15/2015] [Accepted: 05/19/2015] [Indexed: 06/04/2023]
Abstract
Progesterone (P4) and synthetic progestins enter the aquatic environment through wastewater treatment plant effluents and agricultural run-off, posing potential risks to aquatic organisms due to their biological activity. P4 is a precursor of a number of steroids in vertebrates, including estrogens and androgens. Mussels Mytilus galloprovincialis were exposed to P4 at the ng to low μg/L range (0.02-10μg/L) for 7 days with the aim of (a) assessing potential alterations on endogenous steroids as a consequence of exposure, and (b) describing the enzymatic pathways involved in P4 metabolism in mussels. No significant alteration of the levels of testosterone (T) and estradiol (E2) was observed in mantle/gonad tissue of exposed mussels, in spite of a 5.6-fold increase in immunoreactive T in those exposed to 10μg P4/L, which was attributed to cross-reactivity. P4 was actively metabolized to 5α-pregnane-3,20-dione (5α-DHP) and 3β-hydroxy-5α-pregnan-20-one (3β,20-one) in digestive gland, with no evidence for the synthesis of 17α-hydroxyprogesterone or androstenedione. The metabolism of P4 to 5α-DHP was not altered by exposure. Histological examination of the gonads suggested that exposure to 10μg/L P4 induced gamete maturation and release in mussels. Nonetheless, environmental concentrations of P4 are unlikely to have an endocrine action in mussels.
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Affiliation(s)
| | - Denise Fernandes
- Environmental Chemistry Department, IDAEA-CSIC, C/Jordi Girona 18-26, 08034 Barcelona, Spain; FCT, CIMA, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal.
| | - Marta Bonastre
- Environmental Chemistry Department, IDAEA-CSIC, C/Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Cinta Porte
- Environmental Chemistry Department, IDAEA-CSIC, C/Jordi Girona 18-26, 08034 Barcelona, Spain.
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Kaur S, Jobling S, Jones CS, Noble LR, Routledge EJ, Lockyer AE. The nuclear receptors of Biomphalaria glabrata and Lottia gigantea: implications for developing new model organisms. PLoS One 2015; 10:e0121259. [PMID: 25849443 PMCID: PMC4388693 DOI: 10.1371/journal.pone.0121259] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 01/29/2015] [Indexed: 02/01/2023] Open
Abstract
Nuclear receptors (NRs) are transcription regulators involved in an array of diverse physiological functions including key roles in endocrine and metabolic function. The aim of this study was to identify nuclear receptors in the fully sequenced genome of the gastropod snail, Biomphalaria glabrata, intermediate host for Schistosoma mansoni and compare these to known vertebrate NRs, with a view to assessing the snail's potential as a invertebrate model organism for endocrine function, both as a prospective new test organism and to elucidate the fundamental genetic and mechanistic causes of disease. For comparative purposes, the genome of a second gastropod, the owl limpet, Lottia gigantea was also investigated for nuclear receptors. Thirty-nine and thirty-three putative NRs were identified from the B. glabrata and L. gigantea genomes respectively, based on the presence of a conserved DNA-binding domain and/or ligand-binding domain. Nuclear receptor transcript expression was confirmed and sequences were subjected to a comparative phylogenetic analysis, which demonstrated that these molluscs have representatives of all the major NR subfamilies (1-6). Many of the identified NRs are conserved between vertebrates and invertebrates, however differences exist, most notably, the absence of receptors of Group 3C, which includes some of the vertebrate endocrine hormone targets. The mollusc genomes also contain NR homologues that are present in insects and nematodes but not in vertebrates, such as Group 1J (HR48/DAF12/HR96). The identification of many shared receptors between humans and molluscs indicates the potential for molluscs as model organisms; however the absence of several steroid hormone receptors indicates snail endocrine systems are fundamentally different.
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Affiliation(s)
- Satwant Kaur
- Institute of Environment, Health and Societies, Brunel University London, Uxbridge, United Kingdom
| | - Susan Jobling
- Institute of Environment, Health and Societies, Brunel University London, Uxbridge, United Kingdom
| | - Catherine S. Jones
- School of Biological Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Leslie R. Noble
- School of Biological Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Edwin J. Routledge
- Institute of Environment, Health and Societies, Brunel University London, Uxbridge, United Kingdom
| | - Anne E. Lockyer
- Institute of Environment, Health and Societies, Brunel University London, Uxbridge, United Kingdom
- * E-mail:
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32
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André A, Ruivo R, Gesto M, Castro LFC, Santos MM. Retinoid metabolism in invertebrates: when evolution meets endocrine disruption. Gen Comp Endocrinol 2014; 208:134-45. [PMID: 25132059 DOI: 10.1016/j.ygcen.2014.08.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 07/20/2014] [Accepted: 08/07/2014] [Indexed: 02/07/2023]
Abstract
Recent genomic and biochemical evidence in invertebrate species pushes back the origin of the retinoid metabolic and signaling modules to the last common ancestor of all bilaterians. However, the evolution of retinoid pathways are far from fully understood. In the majority of non-chordate invertebrate lineages, the ongoing functional characterization of retinoid-related genes (metabolism and signaling pathways), as well as the characterization of the endogenous retinoid content (precursors and active retinoids), is still incomplete. Despite limited, the available data supports the presence of biologically active retinoid pathways in invertebrates. Yet, the mechanisms controlling the spatial and temporal distribution of retinoids as well as their physiological significance share similarities and differences with vertebrates. For instance, retinol storage in the form of retinyl esters, a key feature for the maintenance of retinoid homeostatic balance in vertebrates, was only recently demonstrated in some mollusk species, suggesting that such ability is older than previously anticipated. In contrast, the enzymatic repertoire involved in this process is probably unlike that of vertebrates. The suggested ancestry of active retinoid pathways implies that many more metazoan species might be potential targets for endocrine disrupting chemicals. Here, we review the current knowledge about the occurrence and functionality of retinoid metabolic and signaling pathways in invertebrate lineages, paying special attention to the evolutionary origin of retinoid storage mechanisms. Additionally, we summarize existing information on the endocrine disruption of invertebrate retinoid modules by environmental chemicals. Research priorities in the field are highlighted.
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Affiliation(s)
- A André
- CIMAR/CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; ICBAS - Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - R Ruivo
- CIMAR/CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal.
| | - M Gesto
- Laboratorio de Fisioloxía Animal, Facultade de Bioloxía, Universidade de Vigo, 36310 Vigo, Spain.
| | - L Filipe C Castro
- CIMAR/CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; FCUP - Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
| | - M M Santos
- CIMAR/CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; FCUP - Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
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Leonard JA, Cope WG, Barnhart MC, Bringolf RB. Metabolomic, behavioral, and reproductive effects of the aromatase inhibitor fadrozole hydrochloride on the unionid mussel Lampsilis fasciola. Gen Comp Endocrinol 2014; 206:213-26. [PMID: 25072892 DOI: 10.1016/j.ygcen.2014.07.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 07/12/2014] [Accepted: 07/21/2014] [Indexed: 01/15/2023]
Abstract
Androgen-induced masculinization of female aquatic biota poses concerns for natural population stability. This research evaluated the effects of a twelve day exposure of fadrozole hydrochloride on the metabolism and reproductive status of the unionid mussel Lampsilis fasciola. Although this compound is not considered to be widespread in the aquatic environment, it was selected as a model aromatase (enzyme that converts testosterone to estradiol) inhibitor. Adult mussels were exposed to a control and 3 concentrations of fadrozole (2μg/L, 20μg/L, and 50μg/L), and samples of gill tissue were taken on days 4 and 12 for metabolomics analysis. Gills were used because of the variety of critical processes they mediate, such as feeding, ion exchange, and siphoning. Daily observed mussel behavior included female mantle display, foot protrusion, siphoning, and larval (glochidia) releases. Glochidia mortality was significantly higher in the 20μg/L treatment. Fewer conglutinate (packets of glochidia) releases were observed in the 50μg/L treatment, and mortality was highly correlated to release numbers. Foot protrusion was significantly higher in females in nearly all treatments, including the control, during the first 4days of observations. However, this sex difference was observed only in the 50μg/L treatment during the last 8days. Generally, metabolites were significantly altered in female gill tissue in the 2μg/L treatment whereas males were mostly affected only at the highest (50μg/L) treatment. Both sexes also revealed significant reductions in fadrozole-induced metabolic effects in gill tissue sampled after 12days compared to tissue sampled after 4days, indicating time-dependent mechanisms of disruptions in metabolic pathways and homeostatic processes to compensate for such disruptions.
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Affiliation(s)
- Jeremy A Leonard
- Department of Applied Ecology, Box 7617, North Carolina State University, Raleigh, NC 27695, United States.
| | - W Gregory Cope
- Department of Applied Ecology, Box 7617, North Carolina State University, Raleigh, NC 27695, United States
| | - M Christopher Barnhart
- Department of Biology, 901 South Avenue, Missouri State University, Springfield, MO 65897, United States
| | - Robert B Bringolf
- Warnell School of Forestry and Natural Resources, University of Georgia, 180 East Green Street, Athens, GA 30602, United States
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Cruz A, Henriques I, Sousa ACA, Baptista I, Almeida A, Takahashi S, Tanabe S, Correia A, Suzuki S, Anselmo AM, Mendo S. A microcosm approach to evaluate the degradation of tributyltin (TBT) by Aeromonas molluscorum Av27 in estuarine sediments. ENVIRONMENTAL RESEARCH 2014; 132:430-437. [PMID: 24858283 DOI: 10.1016/j.envres.2014.04.031] [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] [Received: 01/28/2014] [Revised: 04/23/2014] [Accepted: 04/25/2014] [Indexed: 06/03/2023]
Abstract
Tributyltin (TBT) is a biocide extremely toxic to a wide range of organisms, which has been used for decades in antifouling paints. Despite its global ban in 2008, TBT is still a problem of great concern due to the high levels trapped in sediments. Aeromonas molluscorum Av27 is a TBT degrading bacterium that was isolated from an estuarine system. We investigated the ability and the role of this bacterium on TBT degradation in this estuarine system, using a microcosm approach in order to mimic environmental conditions. The experiment was established and followed for 150 days. Simultaneously, changes in the indigenous bacterial community structure were also investigated. The results revealed a maximum TBT degradation rate of 28% accompanied by the detection of the degradation products over time. Additionally, it was observed that TBT degradation was significantly enhanced by the presence of Av27. In addition a significantly higher TBT degradation occurred when the concentration of Av27 was higher. TBT degradation affected the bacterial community composition as revealed by the changes in the prevalence of Proteobacteria subdivisions, namely the increase of Deltaproteobacteria and the onset of Epsilonproteobacteria. However, the addition of Av27 strain did not affect the dominant phylotypes. Total bacterial number, bacterial biomass productivity, 16S rRNA gene and denaturing gradient gel electrophoresis (DGGE) analyses also indicated alterations on the bacterial community structure over time, with bacteria non-tolerant to pollutants increasing their representativeness, as, for instance, the increase of the number of Alphaproteobacteria clones from 6% in the beginning to 12% at the end of the experiment. The work herein presented confirms the potential of Av27 strain to be used in the decontamination of TBT-polluted environments.
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Affiliation(s)
- Andreia Cruz
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Isabel Henriques
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Ana C A Sousa
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Inês Baptista
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Adelaide Almeida
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Shin Takahashi
- Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama 790-8577, Japan
| | - Shinsuke Tanabe
- Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama 790-8577, Japan
| | - António Correia
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Satoru Suzuki
- Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama 790-8577, Japan
| | - Ana Maria Anselmo
- Laboratório Nacional de Energia e Geologia, Unidade de Bioenergia, Estrada da Portela, Bairro do Zambujal, Apartado 7586-Alfragide, 2610-999 Amadora, Portugal
| | - Sónia Mendo
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
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Vogeler S, Galloway TS, Lyons BP, Bean TP. The nuclear receptor gene family in the Pacific oyster, Crassostrea gigas, contains a novel subfamily group. BMC Genomics 2014; 15:369. [PMID: 24885009 PMCID: PMC4070562 DOI: 10.1186/1471-2164-15-369] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Accepted: 04/30/2014] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Nuclear receptors are a superfamily of transcription factors important in key biological, developmental and reproductive processes. Several of these receptors are ligand- activated and through their ability to bind endogenous and exogenous ligands, are potentially vulnerable to xenobiotics. Molluscs are key ecological species in defining aquatic and terrestrial habitats and are sensitive to xenobiotic compounds in the environment. However, the understanding of nuclear receptor presence, function and xenobiotic disruption in the phylum Mollusca is limited. RESULTS Here, forty-three nuclear receptor sequences were mined from the genome of the Pacific oyster, Crassostrea gigas. They include members of NR0-NR5 subfamilies, notably lacking any NR6 members. Phylogenetic analyses of the oyster nuclear receptors have been conducted showing the presence of a large novel subfamily group not previously reported, which is named NR1P. Homologues to all previous identified nuclear receptors in other mollusc species have also been determined including the putative heterodimer partner retinoid X receptor, estrogen receptor and estrogen related receptor. CONCLUSION C. gigas contains a highly diverse set of nuclear receptors including a novel NR1 group, which provides important information on presence and evolution of this transcription factor superfamily in invertebrates. The Pacific oyster possesses two members of NR3, the sex steroid hormone receptor analogues, of which there are 9 in humans. This provides increasing evidence that steroid ligand specific expansion of this family is deuterostome specific. This new knowledge on divergence and emergence of nuclear receptors in C. gigas provides essential information for studying regulation of molluscan gene expression and the potential effects of xenobiotics.
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Affiliation(s)
- Susanne Vogeler
- />School of Biosciences, College of Life and Environmental Sciences, University of Exeter, Stocker Road, Exeter, EX4 4QD UK
- />Centre for Environment, Fisheries and Aquaculture Science, Cefas Weymouth Laboratory, Barrack Road, Weymouth, DT4 8UB UK
| | - Tamara S Galloway
- />School of Biosciences, College of Life and Environmental Sciences, University of Exeter, Stocker Road, Exeter, EX4 4QD UK
| | - Brett P Lyons
- />Centre for Environment, Fisheries and Aquaculture Science, Cefas Weymouth Laboratory, Barrack Road, Weymouth, DT4 8UB UK
| | - Tim P Bean
- />Centre for Environment, Fisheries and Aquaculture Science, Cefas Weymouth Laboratory, Barrack Road, Weymouth, DT4 8UB UK
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Averbuj A, Rocha MN, Zabala S. Embryonic development and reproductive seasonality ofBuccinanops globulosus(Nassariidae) (Kiener, 1834) in Patagonia, Argentina. INVERTEBR REPROD DEV 2014. [DOI: 10.1080/07924259.2013.875949] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Giusti A, Leprince P, Mazzucchelli G, Thomé JP, Lagadic L, Ducrot V, Joaquim-Justo C. Proteomic Analysis of the Reproductive Organs of the Hermaphroditic Gastropod Lymnaea stagnalis Exposed to Different Endocrine Disrupting Chemicals. PLoS One 2013; 8:e81086. [PMID: 24363793 PMCID: PMC3867191 DOI: 10.1371/journal.pone.0081086] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Accepted: 10/08/2013] [Indexed: 01/27/2023] Open
Abstract
Many studies have reported perturbations of mollusc reproduction following exposure to low concentrations (ng/L range) of endocrine disrupting chemicals (EDCs). However, the mechanisms of action of these molecules on molluscs are still poorly understood. Investigation of the modifications of protein expression in organisms exposed to chemicals using proteomic methods can provide a broader and more comprehensive understanding of adverse impacts of pollution on organisms than conventional biochemical biomarkers (e.g., heat-shock proteins, metallothioneins, GST, EROD). In this study we have investigated the impacts of four chemicals, which exhibit different endocrine disrupting properties in vertebrates, on the proteome of the hermaphroditic freshwater pulmonate gastropod Lymnaea stagnalis after 21 days of exposure. Testosterone, tributyltin, chlordecone and cyproterone acetate were chosen as tested compounds as they can induce adverse effects on the reproduction of this snail. The 2D-DIGE method was used to identify proteins whose expression was affected by these compounds. In addition to modifying the expression of proteins involved in the structure and function of the cytoskeleton, chemicals had impacts on the expression of proteins involved in the reproduction of L. stagnalis. Exposure to 19.2 µg/L of chlordecone increased the abundance of ovipostatin, a peptide transmitted during mating through seminal fluid, which reduces oviposition in this species. The expression of yolk ferritin, the vitellogenin equivalent in L. stagnalis, was reduced after exposure to 94.2 ng Sn/L of tributyltin. The identification of yolk ferritin and the modification of its expression in snails exposed to chemicals were refined using western blot analysis. Our results showed that the tested compounds influenced the abundance of yolk ferritin in the reproductive organs. Alteration in proteins involved in reproductive pathways (e.g., ovipostatin and yolk ferritin) could constitute relevant evidence of interaction of EDCs with reproductive pathways that are under the control of the endocrine system of L. stagnalis.
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Affiliation(s)
- Arnaud Giusti
- Laboratory of Animal Ecology and Ecotoxicology, Centre of Analytical Research and Technology (CART), Liege University, Liège, Belgium
- INRA (Institut National de la Recherche Agronomique), UMR0985 Ecologie et Santé des Ecosystèmes, Equipe Ecotoxicologie et Qualité des Milieux Aquatiques, Rennes, France
- * E-mail:
| | | | | | - Jean-Pierre Thomé
- Laboratory of Animal Ecology and Ecotoxicology, Centre of Analytical Research and Technology (CART), Liege University, Liège, Belgium
| | - Laurent Lagadic
- INRA (Institut National de la Recherche Agronomique), UMR0985 Ecologie et Santé des Ecosystèmes, Equipe Ecotoxicologie et Qualité des Milieux Aquatiques, Rennes, France
| | - Virginie Ducrot
- INRA (Institut National de la Recherche Agronomique), UMR0985 Ecologie et Santé des Ecosystèmes, Equipe Ecotoxicologie et Qualité des Milieux Aquatiques, Rennes, France
| | - Célia Joaquim-Justo
- Laboratory of Animal Ecology and Ecotoxicology, Centre of Analytical Research and Technology (CART), Liege University, Liège, Belgium
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Giusti A, Joaquim-Justo C. Esterification of vertebrate like steroids in molluscs: a target of endocrine disruptors? Comp Biochem Physiol C Toxicol Pharmacol 2013; 158:187-98. [PMID: 24004916 DOI: 10.1016/j.cbpc.2013.08.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 08/27/2013] [Accepted: 08/27/2013] [Indexed: 12/24/2022]
Abstract
Alterations of the reproductive organs of gastropod molluscs exposed to pollutants have been reported in natural populations for more than 40 years. In some cases, these impacts have been linked to exposure to endocrine-disrupting chemicals (EDCs), which are known to induce adverse impacts on vertebrates, mainly by direct binding to steroid receptors or by altering hormone synthesis. Investigations on the mechanisms of action of endocrine disruptors in molluscs show that EDCs induce modifications of endogenous titres of androgens (e.g., testosterone, androstenedione) and oestrogens (e.g., 17ß-oestradiol). Alterations of the activity of enzymes related to steroid metabolism (i.e., cytochrome P-450 aromatase, acyltransferases) are also often observed. In bivalves and gastropods, fatty acid esterification of steroids might constitute the major regulation of androgen and oestrogen homeostasis. The present review indicates that metabolism of steroid hormones to fatty acid esters might be a target of synthetic EDCs. Alterations of this process would impact the concentrations of free, potentially bioactive, form of steroids.
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Affiliation(s)
- Arnaud Giusti
- Laboratory of Animal Ecology and Ecotoxicology, Centre of Analytical Research and Technology (CART), Liège University, 15 Allée du 6 août, 4000 Liège, Belgium.
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Gesto M, Castro LFC, Santos MM. Differences in retinoid levels and metabolism among gastropod lineages: imposex-susceptible gastropods lack the ability to store retinoids in the form of retinyl esters. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2013; 142-143:96-103. [PMID: 23981467 DOI: 10.1016/j.aquatox.2013.08.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 07/29/2013] [Accepted: 08/01/2013] [Indexed: 06/02/2023]
Abstract
The presence of a complex retinoid system was long believed to be a chordate/vertebrate novelty. However, recent findings indicate otherwise since the gastropod mollusk Osilinus lineatus was found to have the capacity to store retinoids in the form of retinyl esters (REs), a key feature to maintain a homeostatic control of retinoid levels. Here, we investigated whether such a complex retinoid system is widely distributed among gastropod lineages. Additionally, since one of the most spectacular examples of endocrine disruption in the wild, the masculinization of female gastropods (imposex) by the retinoid X receptor (RXR) agonist, tributyltin (TBT), has been linked with perturbed retinoid signaling, we also investigated if retinoid storage mechanisms in the form of retinyl esters were present in imposex-susceptible gastropods. Initially, we determined the presence of both polar (active retinoic acid isomers) and nonpolar retinoids (retinol, REs) in selected gastropod species: the limpet Patella depressa and the imposex-susceptible whelks Nucella lapillus and Nassarius reticulatus. Although all species presented active retinoid forms, N. lapillus and N. reticulatus were shown to lack nonpolar retinoids. The absence of REs, which are the common retinoid storage form found in vertebrates and in O. lineatus suggest that those species are unable to use them to maintain a homeostatic control of their retinoid levels. In order to further clarify the retinoid metabolic pathways in imposex-susceptible gastropods, a retinoid exposure study was carried out with N. lapillus. The results demonstrate that although N. lapillus is able to metabolize several retinoid precursors, it lacks the capacity to store retinoids as REs. Whether the lack of retinoid storage mechanisms in the form of REs in imposex-susceptible gastropods plays an important role in the susceptibility to RXR agonists warrants additional studies.
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Affiliation(s)
- Manuel Gesto
- CIMAR/CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal.
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An easy, rapid and inexpensive method to monitor tributyltin (TBT) toxicity in the laboratory. Folia Microbiol (Praha) 2013; 59:203-7. [DOI: 10.1007/s12223-013-0284-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Accepted: 09/25/2013] [Indexed: 11/25/2022]
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Abidli S, Castro LFC, Lahbib Y, Reis-Henriques MA, Trigui El Menif N, Santos MM. Imposex development in Hexaplex trunculus (Gastropoda: Caenogastropoda) involves changes in the transcription levels of the retinoid X receptor (RXR). CHEMOSPHERE 2013; 93:1161-1167. [PMID: 23856468 DOI: 10.1016/j.chemosphere.2013.06.054] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Revised: 06/05/2013] [Accepted: 06/18/2013] [Indexed: 06/02/2023]
Abstract
In order to further demonstrate that TBT-induced imposex through RXR signaling is not species-specific, Hexaplex trunculus was selected as an experimental model species. We first isolated RXR in H. trunculus, and determined gene transcription through quantitative real-time PCR in key tissues (e.g., penis/penis-forming area and central nervous system:- CNS), upon exposure to tributyltin (TBT) (5 and 50 ng TBTL(-1)). Two months of exposure to TBT induced imposex and led to a significant increase in the severity of the phenomenon in females and an increase in male penis lengths. Exposure to TBT altered RXR gene transcription in a tissue and sex-specific manner. In the CNS, there were no significant changes in RXR gene transcription between control and TBT-exposed females. A similar trend was observed in male CNS. On the contrary, in the penis-forming area/penis of females exposed to TBT, a significant increase in RXR gene transcription was observed in the 50 ng TBTL(-1) group. Furthermore, a positive correlation was observed between overall female penis lengths and RXR gene transcription. In males, although a trend towards an increase in RXR gene transcription in penis was observed, differences did not reach significance. Overall, the results of the present study give further support to a local role of RXR in the penis-forming area during the development of imposex by TBT, thus suggesting a conserved function of RXR in penis formation at least within prosobranch gastropods.
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Affiliation(s)
- Sami Abidli
- Laboratory of Environment Biomonitoring, University of Carthage, Faculty of Sciences of Bizerta (FSB), 7021 Zarzouna, Bizerta, Tunisia.
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Coulaud R, Mouthon J, Quéau H, Charles S, Chaumot A. Life-history phenology strongly influences population vulnerability to toxicants: a case study with the mudsnail Potamopyrgus antipodarum. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2013; 32:1727-1736. [PMID: 23564546 DOI: 10.1002/etc.2235] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 01/28/2013] [Accepted: 03/19/2013] [Indexed: 06/02/2023]
Abstract
One of the main objectives of ecological risk assessment is to evaluate the effects of toxicants on ecologically relevant biological systems such as populations or communities. However, the effects of toxicants are commonly measured on selected subindividual or individual endpoints due to their specificity against chemical stressors. Introducing these effects into population models is a promising way to predict impacts on populations. The models currently employed are very simplistic, and their environmental relevance needs to be improved to establish the ecological relevance of hazard assessment. The present study with the gastropod Potamopyrgus antipodarum combines a field experimental approach with a modeling framework. It clarifies the role played by seasonal variability of life-history traits in the population's vulnerability to the alteration of individual performance, potentially due to toxic stress. The present study comprised 3 steps: 1) characterization of the seasonal variability in life-history traits of a local population over 1 yr by using in situ experiments on caged snails, coupled with a demographic follow-up; 2) development of a periodic matrix population model that visualizes the monthly variability of population dynamics; and 3) simulation of the demographic consequences of an alteration in life-history traits (i.e., fertility, juvenile, and adult survival). The results revealed that demographic impacts strongly depend on the season when alterations of individual performance occur. Model analysis showed that this seasonal variability in population vulnerability is strongly related to the phenology of the population. The authors emphasize that improving the realism of population models is a major objective for ecological risk assessment, and that taking into account species phenology in modeling approaches should be a priority.
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Morales M, Martínez-Paz P, Ozáez I, Martínez-Guitarte JL, Morcillo G. DNA damage and transcriptional changes induced by tributyltin (TBT) after short in vivo exposures of Chironomus riparius (Diptera) larvae. Comp Biochem Physiol C Toxicol Pharmacol 2013; 158:57-63. [PMID: 23684738 DOI: 10.1016/j.cbpc.2013.05.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 05/07/2013] [Accepted: 05/08/2013] [Indexed: 11/20/2022]
Abstract
Tributyltin (TBT) is a widespread environmental contaminant in aquatic systems whose adverse effects in development and reproduction are related to its well-known endocrine-disrupting activity. In this work, the early molecular effects of TBT in Chironomus riparius (Diptera) were evaluated by analyzing its DNA damaging potential and the transcriptional response of different endocrine-related genes. Twenty-four-hour in vivo exposures of the aquatic larvae, at environmentally relevant doses of TBT, revealed genotoxic activity as shown by significant increases in DNA strand breaks quantified with the comet assay. TBT was also able to induce significant increases in transcripts from the ecdysone receptor gene (EcR), the ultraspiracle gene (usp) (insect ortholog of the retinoid X receptor), the estrogen-related receptor (ERR) gene and the E74 early ecdysone-inducible gene, as measured by real-time RT-PCR. In contrast, the expression of the vitellogenin (vg) gene remained unaltered, while the hsp70 gene appeared to be down-regulated. The ability of TBT to up-regulate hormonal target genes provides the first evidence, at genomic level, of its endocrine disruptive effects and also suggests a mechanism of action that mimics ecdysteroid hormones in insects. These data reveal for the first time the early genomic effects of TBT on an insect genome.
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Affiliation(s)
- Mónica Morales
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED, Senda del Rey 9, 28040 Madrid, Spain
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Giusti A, Ducrot V, Joaquim-Justo C, Lagadic L. Testosterone levels and fecundity in the hermaphroditic aquatic snail Lymnaea stagnalis exposed to testosterone and endocrine disruptors. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2013; 32:1740-1745. [PMID: 23564527 DOI: 10.1002/etc.2234] [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: 02/09/2013] [Revised: 03/11/2013] [Accepted: 03/21/2013] [Indexed: 06/02/2023]
Abstract
Endocrine disruptors are known to alter endogenous free and esterified levels of androgenic and estrogenic steroid hormones in aquatic mollusks. The origin of steroids in these animals, however, remains controversial. In the present study, free and esterified testosterone concentrations were measured in the hermaphroditic aquatic gastropod Lymnaea stagnalis exposed to molecules known for their androgenic (testosterone and tributyltin), anti-androgenic (cyproterone-acetate), and estrogenic (chlordecone) properties, by reference to their mode of action in vertebrates. In parallel, snail oviposition and fecundity were followed over a 21-d exposure period. Testosterone exposure resulted in increased esterified testosterone levels, whereas free testosterone concentrations remained stable. In contrast, cyproterone-acetate significantly increased the free form of testosterone with no changes in the esterified form, whereas chlordecone showed a tendency to reduce (though not significantly) esterified testosterone concentrations without changing free testosterone levels. Finally, tributyltin did not alter testosterone homeostasis. The production of egg clutches and eggs was significantly reduced only in the snails exposed to the highest concentrations of chlordecone (19.6 µg/L) and tributyltin (94.2 ng Sn/L). Overall, the present study demonstrates that uptake of testosterone from the exposure medium occurs in L. stagnalis. Moreover, it shows that cyproterone-acetate and, to a lesser extent, chlordecone can alter endogenous testosterone levels in this freshwater snail. However, the relationship between hormonal changes and snail reproduction has not been established. Environ Toxicol Chem 2013;32:1740-1745. © 2013 SETAC.
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Affiliation(s)
- Arnaud Giusti
- Laboratory of Animal Ecology and Ecotoxicology, Centre of Analytical Research and Technology (CART), Liege University, Liège, Belgium
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Giusti A, Barsi A, Dugué M, Collinet M, Thomé JP, Joaquim-Justo C, Roig B, Lagadic L, Ducrot V. Reproductive impacts of tributyltin (TBT) and triphenyltin (TPT) in the hermaphroditic freshwater gastropod Lymnaea stagnalis. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2013; 32:1552-1560. [PMID: 23450754 DOI: 10.1002/etc.2200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 12/18/2012] [Accepted: 02/11/2013] [Indexed: 06/01/2023]
Abstract
Tributyltin (TBT) and triphenyltin (TPT) are emblematic endocrine disruptors, which have been mostly studied in gonochoric prosobranchs. Although both compounds can simultaneously occur in the environment, they have mainly been tested separately for their effects on snail reproduction. Because large discrepancies in experimental conditions occurred in these tests, the present study aimed to compare the relative toxicity of TBT and TPT under similar laboratory conditions in the range of 0 ng Sn/L to 600 ng Sn/L. Tests were performed on the simultaneous hermaphrodite Lymnaea stagnalis, a freshwater snail in which effects of TPT were unknown. Survival, shell length, and reproduction were monitored in a 21-d semistatic test. Frequency of abnormal eggs was assessed as an additional endpoint. Triphenyltin hampered survival while TBT did not. Major effects on shell solidity and reproduction were observed for both compounds, reproductive outputs being more severely hampered by TBT than by TPT. Considering the frequency of abnormal eggs allowed increasing test sensitivity, because snail responses to TBT could be detected at concentrations as low as 19 ng Sn/L. However, the putative mode of action of the 2 compounds could not be deduced from the structure of the molecules or from the response of apical endpoints. Sensitivity of L. stagnalis to TBT and TPT was compared with the sensitivity of prosobranch mollusks with different habitats and different reproductive strategies.
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Affiliation(s)
- Arnaud Giusti
- Laboratory of Animal Ecology and Ecotoxicology, Center of Analytical Research and Technology, Liège University, Liège, Belgium
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Pagliarani A, Nesci S, Ventrella V. Toxicity of organotin compounds: Shared and unshared biochemical targets and mechanisms in animal cells. Toxicol In Vitro 2013; 27:978-90. [DOI: 10.1016/j.tiv.2012.12.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Revised: 11/08/2012] [Accepted: 12/03/2012] [Indexed: 01/10/2023]
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Organotin Compounds from Snails to Humans. ENVIRONMENTAL CHEMISTRY FOR A SUSTAINABLE WORLD 2013. [DOI: 10.1007/978-3-319-02387-8_4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Pascoal S, Carvalho G, Vasieva O, Hughes R, Cossins A, Fang Y, Ashelford K, Olohan L, Barroso C, Mendo S, Creer S. Transcriptomics and in vivo tests reveal novel mechanisms underlying endocrine disruption in an ecological sentinel, Nucella lapillus. Mol Ecol 2012. [PMID: 23205577 DOI: 10.1111/mec.12137] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Anthropogenic endocrine disruptors now contaminate all environments globally, with concomitant deleterious effects across diverse taxa. While most studies on endocrine disruption (ED) have focused on vertebrates, the superimposition of male sexual characteristics in the female dogwhelk, Nucella lapillus (imposex), caused by organotins, provides one of the most clearcut ecological examples of anthropogenically induced ED in aquatic ecosystems. To identify the underpinning mechanisms of imposex for this 'nonmodel' species, we combined Roche 454 pyrosequencing with custom oligoarray fabrication inexpensively to both generate gene models and identify those responding to chronic tributyltin (TBT) treatment. The results supported the involvement of steroid, neuroendocrine peptide hormone dysfunction and retinoid mechanisms, but suggested additionally the involvement of putative peroxisome proliferator-activated receptor (PPAR) pathways. Application of rosiglitazone, a well-known vertebrate PPARγ ligand, to dogwhelks induced imposex in the absence of TBT. Thus, while TBT-induced imposex is linked to the induction of many genes and has a complex phenotype, it is likely also to be driven by PPAR-responsive pathways, hitherto not described in invertebrates. Our findings provide further evidence for a common signalling pathway between invertebrate and vertebrate species that has previously been overlooked in the study of endocrine disruption.
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Affiliation(s)
- Sonia Pascoal
- Molecular Ecology and Fisheries Genetics Laboratory, Environment Centre Wales, School of Biological Sciences, Bangor University, Gwynedd, LL57 2UW, UK
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de Azevedo D, de Almeida Rocha-Barreira C, Matthews-Cascon H, Castro ÍB. Pugilina morio L., a new imposex exhibitor from South American estuarine environments: approach for a non-lethal method to evaluate imposex. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2012; 89:786-792. [PMID: 22878864 DOI: 10.1007/s00128-012-0779-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Accepted: 08/03/2012] [Indexed: 06/01/2023]
Abstract
This is the first report on imposex occurrence in Pugilina morio. Imposex levels in P. morio from Ceará River Estuary were assessed by a non-lethal method. The obtained imposex parameters were: percentage = 37.1 %, female penis length index (FPLI) = 0.93 mm, relative penis length index (RPLI) = 6.5 %, and vas deferens sequence index (VDSI) = 1.0. Because imposex is induced by tributyltin, and P. morio is widely distributed on the East coast of South America, the species can be used as a tributyltin contamination sentinel in these estuaries. Additionally, a non-lethal method of evaluating imposex minimized the impact on the population of P. morio from sample collection, as all organisms were returned to the environment.
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Affiliation(s)
- Deyse de Azevedo
- Laboratório de Zoobentos do Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. da Abolição, 3207, Bairro Meireles, 60165-081 Fortaleza, CE, Brasil
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50
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Relative growth and reproductive cycle in two populations of Bolinus brandaris (Gastropoda: Muricidae) from northern Tunisia (Bizerta Lagoon and small Gulf of Tunis). Biologia (Bratisl) 2012. [DOI: 10.2478/s11756-012-0060-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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