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Casas-Rodríguez A, Medrano-Padial C, Jos A, Cameán AM, Campos A, Fonseca E. Characterization of NR1J1 Paralog Responses of Marine Mussels: Insights from Toxins and Natural Activators. Int J Mol Sci 2024; 25:6287. [PMID: 38928005 PMCID: PMC11204112 DOI: 10.3390/ijms25126287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 05/30/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024] Open
Abstract
The pregnane X receptor (PXR) is a nuclear hormone receptor that plays a pivotal role in regulating gene expression in response to various ligands, particularly xenobiotics. In this context, the aim of this study was to shed light on the ligand affinity and functions of four NR1J1 paralogs identified in the marine mussel Mytilus galloprovincialis, employing a dual-luciferase reporter assay. To achieve this, the activation patterns of these paralogs in response to various toxins, including freshwater cyanotoxins (Anatoxin-a, Cylindrospermopsin, and Microcystin-LR, -RR, and -YR) and marine algal toxins (Nodularin, Saxitoxin, and Tetrodotoxin), alongside natural compounds (Saint John's Wort, Ursolic Acid, and 8-Methoxypsoralene) and microalgal extracts (Tetraselmis, Isochrysis, LEGE 95046, and LEGE 91351 extracts), were studied. The investigation revealed nuanced differences in paralog response patterns, highlighting the remarkable sensitivity of MgaNR1J1γ and MgaNR1J1δ paralogs to several toxins. In conclusion, this study sheds light on the intricate mechanisms of xenobiotic metabolism and detoxification, particularly focusing on the role of marine mussel NR1J1 in responding to a diverse array of compounds. Furthermore, comparative analysis with human PXR revealed potential species-specific adaptations in detoxification mechanisms, suggesting evolutionary implications. These findings deepen our understanding of PXR-mediated metabolism mechanisms, offering insights into environmental monitoring and evolutionary biology research.
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Affiliation(s)
- Antonio Casas-Rodríguez
- Area of Toxicology, Faculty of Pharmacy, Universidad de Sevilla, Profesor García González n◦2, 41012 Seville, Spain; (A.C.-R.); (A.J.); (A.M.C.)
| | - Concepción Medrano-Padial
- Area of Toxicology, Faculty of Pharmacy, Universidad de Sevilla, Profesor García González n◦2, 41012 Seville, Spain; (A.C.-R.); (A.J.); (A.M.C.)
- Laboratorio de Fitoquímica y Alimentos Saludables (LabFAS), Centro de Edafología y Biología Aplicada del Segura, Consejo Superior de Investigaciones Científicas (CEBAS-CSIC), Campus Universitario 25, Espinardo, 30100 Murcia, Spain
| | - Angeles Jos
- Area of Toxicology, Faculty of Pharmacy, Universidad de Sevilla, Profesor García González n◦2, 41012 Seville, Spain; (A.C.-R.); (A.J.); (A.M.C.)
| | - Ana M. Cameán
- Area of Toxicology, Faculty of Pharmacy, Universidad de Sevilla, Profesor García González n◦2, 41012 Seville, Spain; (A.C.-R.); (A.J.); (A.M.C.)
| | - Alexandre Campos
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal;
| | - Elza Fonseca
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal;
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Beyer J, Song Y, Lillicrap A, Rodríguez-Satizábal S, Chatzigeorgiou M. Ciona spp. and ascidians as bioindicator organisms for evaluating effects of endocrine disrupting chemicals: A discussion paper. MARINE ENVIRONMENTAL RESEARCH 2023; 191:106170. [PMID: 37708617 DOI: 10.1016/j.marenvres.2023.106170] [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: 05/30/2023] [Revised: 08/25/2023] [Accepted: 09/04/2023] [Indexed: 09/16/2023]
Abstract
In context of testing, screening and monitoring of endocrine-disrupting (ED) type of environmental pollutants, tunicates could possibly represent a particularly interesting group of bioindicator organisms. These primitive chordates are already important model organisms within developmental and genomics research due to their central position in evolution and close relationship to vertebrates. The solitary ascidians, such as the genus Ciona spp. (vase tunicates), could possibly be extra feasible as ED bioindicators. They have a free-swimming, tadpole-like larval stage that develops extremely quickly (<20 h under favorable conditions), has a short life cycle (typically 2-3 months), are relatively easy to maintain in laboratory culture, have fully sequenced genomes, and transgenic embryos with 3D course data of the embryo ontogeny are available. In this article, we discuss possible roles of Ciona spp. (and other solitary ascidians) as ecotoxicological bioindicator organisms in general but perhaps especially for effect studies of contaminants with presumed endocrine disrupting modes of action.
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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
| | - Adam Lillicrap
- Norwegian Institute for Water Research (NIVA), Økernveien 94, NO-0579, Oslo, Norway
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Simmonds SE, Fritts‐Penniman AL, Cheng SH, Mahardika GN, Barber PH. Genomic signatures of host-associated divergence and adaptation in a coral-eating snail, Coralliophila violacea (Kiener, 1836). Ecol Evol 2020; 10:1817-1837. [PMID: 32128119 PMCID: PMC7042750 DOI: 10.1002/ece3.5977] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 11/25/2019] [Accepted: 12/06/2019] [Indexed: 12/31/2022] Open
Abstract
The fluid nature of the ocean, combined with planktonic dispersal of marine larvae, lowers physical barriers to gene flow. However, divergence can still occur despite gene flow if strong selection acts on populations occupying different ecological niches. Here, we examined the population genomics of an ectoparasitic snail, Coralliophila violacea (Kiener 1836), that specializes on Porites corals in the Indo-Pacific. Previous genetic analyses revealed two sympatric lineages associated with different coral hosts. In this study, we examined the mechanisms promoting and maintaining the snails' adaptation to their coral hosts. Genome-wide single nucleotide polymorphism (SNP) data from type II restriction site-associated DNA (2b-RAD) sequencing revealed two differentiated clusters of C. violacea that were largely concordant with coral host, consistent with previous genetic results. However, the presence of some admixed genotypes indicates gene flow from one lineage to the other. Combined, these results suggest that differentiation between host-associated lineages of C. violacea is occurring in the face of ongoing gene flow, requiring strong selection. Indeed, 2.7% of all SNP loci were outlier loci (73/2,718), indicative of divergence with gene flow, driven by adaptation of each C. violacea lineage to their specific coral hosts.
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Affiliation(s)
- Sara E. Simmonds
- Department of Ecology and Evolutionary BiologyUniversity of California Los AngelesLos AngelesCAUSA
| | | | - Samantha H. Cheng
- Department of Ecology and Evolutionary BiologyUniversity of California Los AngelesLos AngelesCAUSA
- Center for Biodiversity and ConservationAmerican Museum of Natural HistoryNew YorkNYUSA
| | - Gusti Ngurah Mahardika
- Animal Biomedical and Molecular Biology LaboratoryFaculty of Veterinary MedicineUdayana University BaliDenpasarIndonesia
| | - Paul H. Barber
- Department of Ecology and Evolutionary BiologyUniversity of California Los AngelesLos AngelesCAUSA
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Ekstrand B, Young JF, Rasmussen MK. Taste receptors in the gut - A new target for health promoting properties in diet. Food Res Int 2017; 100:1-8. [PMID: 28888429 DOI: 10.1016/j.foodres.2017.08.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 08/07/2017] [Accepted: 08/12/2017] [Indexed: 12/17/2022]
Abstract
In this review we describe a new target for food functionality, the taste receptors in the gastrointestinal tract. These receptors are involved in an intricate signalling network for monitoring of taste and nutrient intake, homeostasis and energy metabolism, and they are also an early warning system for toxic substances in our diet. Especially the receptors for bitter taste provide a new possibility to activate a number of health related signalling pathways, already at low concentrations of the active substance, without requiring uptake into the body and transport via the circulation. When ligands bind to these receptors, signalling is induced either via peptide hormones into the circulation to other organs in the body, or via nerve fibers directly to the brain.
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Affiliation(s)
- Bo Ekstrand
- Chalmers University of Technology, Department of Biology and Biological Engineering, Food and Nutrition Science, SE-412 96 Gothenburg, Sweden
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Rodrigo AP, Costa PM. The Role of the Cephalopod Digestive Gland in the Storage and Detoxification of Marine Pollutants. Front Physiol 2017; 8:232. [PMID: 28473775 PMCID: PMC5397501 DOI: 10.3389/fphys.2017.00232] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 04/03/2017] [Indexed: 12/21/2022] Open
Abstract
The relevance of cephalopods for fisheries and even aquaculture, is raising concerns on the relationship between these molluscs and environmental stressors, from climate change to pollution. However, how these organisms cope with environmental toxicants is far less understood than for other molluscs, especially bivalves, which are frontline models in aquatic toxicology. Although, sharing the same basic body plan, cephalopods hold distinct adaptations, often unique, as they are active predators with high growth and metabolic rates. Most studies on the digestive gland, the analog to the vertebrate liver, focused on metal bioaccumulation and its relation to environmental concentrations, with indication for the involvement of special cellular structures (like spherulae) and proteins. Although the functioning of phase I and II enzymes of detoxification in molluscs is controversial, there is evidence for CYP-mediated bioactivation, albeit with lower activity than vertebrates, but this issue needs yet much research. Through novel molecular tools, toxicology-relevant genes and proteins are being unraveled, from metallothioneins to heat-shock proteins and phase II conjugation enzymes, which highlights the importance of increasing genomic annotation as paramount to understand toxicant-specific pathways. However, little is known on how organic toxicants are stored, metabolized and eliminated, albeit some evidence from biomarker approaches, particularly those related to oxidative stress, suggesting that these molluscs' digestive gland is indeed responsive to chemical aggression. Additionally, cause-effect relationships between pollutants and toxicopathic effects are little understood, thus compromising, if not the deployment of these organisms for biomonitoring, at least understanding how they are affected by anthropogenically-induced global change.
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Affiliation(s)
- Ana P Rodrigo
- Environmental Toxicology Lab, MARE - Marine and Environmental Sciences Centre, Departamento de Ciências e Engenharia do Ambiente, Faculdade de Ciências e Tecnologia da Universidade Nova de LisboaCaparica, Portugal
| | - Pedro M Costa
- Environmental Toxicology Lab, MARE - Marine and Environmental Sciences Centre, Departamento de Ciências e Engenharia do Ambiente, Faculdade de Ciências e Tecnologia da Universidade Nova de LisboaCaparica, Portugal
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Vogeler S, Bean TP, Lyons BP, Galloway TS. Dynamics of nuclear receptor gene expression during Pacific oyster development. BMC DEVELOPMENTAL BIOLOGY 2016; 16:33. [PMID: 27680968 PMCID: PMC5041327 DOI: 10.1186/s12861-016-0129-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 08/11/2016] [Indexed: 12/30/2022]
Abstract
BACKGROUND Nuclear receptors are a highly conserved set of ligand binding transcription factors, with essential roles regulating aspects of vertebrate and invertebrate biology alike. Current understanding of nuclear receptor regulated gene expression in invertebrates remains sparse, limiting our ability to elucidate gene function and the conservation of developmental processes across phyla. Here, we studied nuclear receptor expression in the early life stages of the Pacific oyster, Crassostrea gigas, to identify at which specific key stages nuclear receptors are expressed RESULTS: We used quantitative RT-PCR to determine the expression profiles of 34 nuclear receptors, revealing three developmental key stages, during which nuclear receptor expression is dynamically regulated: embryogenesis, mid development from gastrulation to trochophore larva, and late larval development prior to metamorphosis. Clustering of nuclear receptor expression patterns demonstrated that transcriptional regulation was not directly related to gene phylogeny, suggesting closely related genes may have distinct functions. Expression of gene homologs of vertebrate retinoid receptors suggests participation in organogenesis and shell-formation, as they are highly expressed at the gastrulation and trochophore larval initial shell formation stages. The ecdysone receptor homolog showed high expression just before larval settlement, suggesting a potential role in metamorphosis. CONCLUSION Throughout early oyster development nuclear receptors exhibited highly dynamic expression profiles, which were not confined by gene phylogeny. These results provide fundamental information on the presence of nuclear receptors during key developmental stages, which aids elucidation of their function in the developmental process. This understanding is essential as ligand sensing nuclear receptors can be disrupted by xenobiotics, a mode of action through which anthropogenic environmental pollutants have been found to mediate effects.
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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
| | - Tim P. Bean
- Centre for Environment, Fisheries and Aquaculture Science, Cefas Weymouth Laboratory, Barrack Road, Weymouth, DT4 8UB UK
| | - Brett P. Lyons
- 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
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Cruzeiro C, Lopes-Marques M, Ruivo R, Rodrigues-Oliveira N, Santos MM, Rocha MJ, Rocha E, Castro LFC. A mollusk VDR/PXR/CAR-like (NR1J) nuclear receptor provides insight into ancient detoxification mechanisms. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 174:61-69. [PMID: 26921727 DOI: 10.1016/j.aquatox.2016.02.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 01/18/2016] [Accepted: 02/14/2016] [Indexed: 06/05/2023]
Abstract
The origin and diversification of the metazoan endocrine systems represents a fundamental research issue in biology. Nuclear receptors are critical components of these systems. A particular group named VDR/PXR/CAR (NR1I/J) is central in the mediation of detoxification responses. While orthologues have been thoroughly characterized in vertebrates, a sparse representation is currently available for invertebrates. Here, we provide the first isolation and characterization of a lophotrochozoan protostome VDR/PXR/CAR nuclear receptor (NR1J), in the estuarine bivalve the peppery furrow shell (Scrobicularia plana). Using a reporter gene assay, we evaluated the xenobiotic receptor plasticity comparing the human PXR with the S. plana NR1Jβ. Our results show that the molluscan receptor responds to a natural toxin (okadaic acid) in a similar fashion to that reported for other invertebrates. In contrast, the pesticide esfenvalerate displayed a unique response, since it down regulated transactivation at higher concentrations, while for triclosan no response was observed. Additionally, we uncovered lineage specific gene duplications and gene loss in the gene group encoding NRs in protostomes with likely impacts on the complexity of detoxification mechanisms across different phyla. Our findings pave the way for the development of multi-specific sensor tools to screen xenobiotic compounds acting via the NR1I/J group.
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Affiliation(s)
- Catarina Cruzeiro
- ICBAS - Institute of Biomedical Sciences Abel Salazar, U. Porto - University of Porto, Portugal; CIIMAR/CIMAR - Interdisciplinary Center of Marine and Environmental Research, U. Porto, Portugal.
| | - Mónica Lopes-Marques
- ICBAS - Institute of Biomedical Sciences Abel Salazar, U. Porto - University of Porto, Portugal; CIIMAR/CIMAR - Interdisciplinary Center of Marine and Environmental Research, U. Porto, Portugal.
| | - Raquel Ruivo
- CIIMAR/CIMAR - Interdisciplinary Center of Marine and Environmental Research, U. Porto, Portugal.
| | - Nádia Rodrigues-Oliveira
- CIIMAR/CIMAR - Interdisciplinary Center of Marine and Environmental Research, U. Porto, Portugal.
| | - Miguel M Santos
- CIIMAR/CIMAR - Interdisciplinary Center of Marine and Environmental Research, U. Porto, Portugal; FCUP - Faculty of Sciences, Department of Biology, U. Porto, Portugal.
| | - Maria João Rocha
- ICBAS - Institute of Biomedical Sciences Abel Salazar, U. Porto - University of Porto, Portugal; CIIMAR/CIMAR - Interdisciplinary Center of Marine and Environmental Research, U. Porto, Portugal.
| | - Eduardo Rocha
- ICBAS - Institute of Biomedical Sciences Abel Salazar, U. Porto - University of Porto, Portugal; CIIMAR/CIMAR - Interdisciplinary Center of Marine and Environmental Research, U. Porto, Portugal.
| | - L Filipe C Castro
- CIIMAR/CIMAR - Interdisciplinary Center of Marine and Environmental Research, U. Porto, Portugal; FCUP - Faculty of Sciences, Department of Biology, U. Porto, Portugal.
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Richter I, Fidler AE. Tunicate pregnane X receptor (PXR) orthologs: Transcript characterization and natural variation. Mar Genomics 2015; 23:99-108. [DOI: 10.1016/j.margen.2015.05.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 05/06/2015] [Accepted: 05/06/2015] [Indexed: 12/12/2022]
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