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Cunha SC, Trabalón L, Jacobs S, Castro M, Fernandez-Tejedor M, Granby K, Verbeke W, Kwadijk C, Ferrari F, Robbens J, Sioen I, Pocurull E, Marques A, Fernandes JO, Domingo JL. UV-filters and musk fragrances in seafood commercialized in Europe Union: Occurrence, risk and exposure assessment. Environ Res 2018; 161:399-408. [PMID: 29197758 DOI: 10.1016/j.envres.2017.11.015] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 11/05/2017] [Accepted: 11/09/2017] [Indexed: 05/24/2023]
Abstract
In the framework of the FP7 ECsafeSeafood project, 62 seafood samples commercialized in Europe Union from several representative species - mackerel, tuna, salmon, seabream, cod, monkfish, crab, shrimp, octopus, perch and plaice - were analysed for residues of 21 personal care products (PCPs), including 11 UV-filters (UV-Fs) and 10 musk fragrances (musks). PCPs analysis were performed by Quick, Easy, Cheap, Effective Rugged, Safe (QuEChERS), combined with liquid-liquid extraction (LLE) or dispersive solid-phase extraction (dSPE), followed by gas chromatography-tandem mass spectrometry (GC-MS/MS). The results showed the presence in a wide range of samples of nine out of eleven UV-Fs compounds analysed, namely 2-ethylhexyl salicylate (EHS), 2-ethylhexyl,4-methoxycinnamate (EHMC), 4-methylbenzylidenecamphor (4-MBC), benzophenone-1 (BP1), benzophenone-3 (BP3), isoamyl-4-methoxycinnamate (IMC), 2,2'-dihydroxy-4,4'-dimethoxybenzophenone (DHMB), homosalate (HS), and octocrylene (OC), whereas galaxolide (HHCB), galaxolide lactone (HHCB-lactone), and tonalide (AHTN) were the most found musks. The potential risks to human health associated with the exposure to eight of the more prevalent PCPs - EHS, EHMC, 4-MBC, BP1, BP3, IMC, HHCB, and AHTN - through seafood consumption were assessed for consumers from five European countries (Belgium, Ireland, Italy, Portugal and Spain). Results showed that the human exposure to UV-Fs and musks estimated from the concentration values found in seafood and the daily consumption of concerned seafood species, were far below toxicological reference values.
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Affiliation(s)
- S C Cunha
- LAQV-Requimte, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal.
| | - L Trabalón
- Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain
| | - S Jacobs
- Department of Public Health, Ghent University, Belgium; Department of Agricultural Economics, Ghent University, Belgium
| | - M Castro
- LAQV-Requimte, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - M Fernandez-Tejedor
- Institute of Agrifood Research and Technology (IRTA), Ctra. de Poble Nou, E-43540 Sant Carles de la Ràpita, Tarragona, Spain
| | - K Granby
- Technical University of Denmark, National Food Institute, Denmark
| | - W Verbeke
- Department of Agricultural Economics, Ghent University, Belgium
| | - C Kwadijk
- Institute for Marine Resources and Ecosystem Studies (IMARES), Netherlands
| | - F Ferrari
- Aeiforia Srl, aggiola 12-16, 29027 Gariga di Podenzano, Piacenza, Italy
| | - J Robbens
- Institute for Agricultural and Fisheries Research (ILVO), Animal Sciences Unit - Fisheries, Belgium
| | - I Sioen
- Department of Public Health, Ghent University, Belgium; Department of Food Safety and Food Quality, Ghent University, Belgium
| | - E Pocurull
- Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain
| | - A Marques
- Portuguese Institute for the Sea and Atmosphere, I.P. (IPMA), Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Portugal
| | - J O Fernandes
- LAQV-Requimte, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - J L Domingo
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Spain
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Mazurais D, Ernande B, Quazuguel P, Severe A, Huelvan C, Madec L, Mouchel O, Soudant P, Robbens J, Huvet A, Zambonino-Infante J. Evaluation of the impact of polyethylene microbeads ingestion in European sea bass (Dicentrarchus labrax) larvae. Mar Environ Res 2015; 112:78-85. [PMID: 26412109 DOI: 10.1016/j.marenvres.2015.09.009] [Citation(s) in RCA: 200] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 09/07/2015] [Accepted: 09/16/2015] [Indexed: 05/05/2023]
Abstract
Microplastics are present in marine habitats worldwide and may be ingested by low trophic organisms such as fish larvae, with uncertain physiological consequences. The present study aims at assessing the impact of polyethylene (PE 10-45 μM) microbeads ingestion in European sea bass (Dicentrarchus labrax) larvae. Fish were fed an inert diet including 0, 10(4) and 10(5) fluorescent microbeads per gram from 7 until 43 days post-hatching (dph). Microbeads were detected in the gastrointestinal tract in all fish fed diet incorporating PE. Our data revealed an efficient elimination of PE beads from the gut since no fluorescent was observed in the larvae after 48 h depuration. While the mortality rate increased significantly with the amount of microbeads scored per larvae at 14 and 20 dph, only ingestion of the highest concentration slightly impacted mortality rates. Larval growth and inflammatory response through Interleukine-1-beta (IL-1β) gene expression were not found to be affected while cytochrome-P450-1A1 (cyp1a1) expression level was significantly positively correlated with the number of microbeads scored per larva at 20 dph. Overall, these results suggest that ingestion of PE microbeads had limited impact on sea bass larvae possibly due to their high potential of egestion.
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Affiliation(s)
- D Mazurais
- Ifremer, Centre de Bretagne, LEMAR UMR 6539, Plouzané, France.
| | - B Ernande
- Ifremer, Channel and North Sea Fisheries Unit, Fisheries Laboratory, BP 699, Boulogne-sur-mer, 62321, France
| | - P Quazuguel
- Ifremer, Centre de Bretagne, LEMAR UMR 6539, Plouzané, France
| | - A Severe
- Ifremer, Centre de Bretagne, LEMAR UMR 6539, Plouzané, France
| | - C Huelvan
- Ifremer, Centre de Bretagne, LEMAR UMR 6539, Plouzané, France
| | - L Madec
- Ifremer, Centre de Bretagne, LEMAR UMR 6539, Plouzané, France
| | - O Mouchel
- Ifremer, Centre de Bretagne, LEMAR UMR 6539, Plouzané, France
| | - P Soudant
- CNRS, IUEM, LEMAR UMR 6539, Plouzané, France
| | - J Robbens
- ILVO, Oostende, Belgium(3) ILVO, Oostende, Belgium
| | - A Huvet
- Ifremer, Centre de Bretagne, LEMAR UMR 6539, Plouzané, France
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3
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De Witte B, Devriese L, Bekaert K, Hoffman S, Vandermeersch G, Cooreman K, Robbens J. Quality assessment of the blue mussel (Mytilus edulis): comparison between commercial and wild types. Mar Pollut Bull 2014; 85:146-55. [PMID: 24969855 DOI: 10.1016/j.marpolbul.2014.06.006] [Citation(s) in RCA: 380] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 05/29/2014] [Accepted: 06/03/2014] [Indexed: 05/18/2023]
Abstract
This study compared species identity, microplastics, chemical and microbial contamination between consumption mussels and wild type mussels, collected at Belgian department stores and Belgian groynes and quaysides, respectively. Species identification based on genetic analysis showed a high number of Mytilus (M.) edulis compared to M. galloprovincialis and M. edulis/galloprovincialis hybrid mussels. The number of total microplastics varied from 2.6 to 5.1 fibres/10 g of mussel. A higher prevalence of orange fibres at quaysides is related to fisheries activities. Chemical contamination of polycyclic aromatic hydrocarbons and polychlorobiphenyls could be related to industrial activities and water turbidity, with maximum concentrations at the quayside of port Zeebrugge. The inverse was noted for Escherichia coli contamination, which was relatively low at Zeebrugge quayside with a total count of 3.9 × 10(2)CFU/100 g tissue, due to limited agricultural effluents. Results of this complementary analysis stress the importance of integrated monitoring and quality assessment.
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Affiliation(s)
- B De Witte
- Institute of Agricultural and Fisheries Research, Animal Sciences Unit - Aquatic Environment and Quality, Ankerstraat 1, 8400 Ostend, Belgium.
| | - L Devriese
- Institute of Agricultural and Fisheries Research, Animal Sciences Unit - Aquatic Environment and Quality, Ankerstraat 1, 8400 Ostend, Belgium.
| | - K Bekaert
- Institute of Agricultural and Fisheries Research, Animal Sciences Unit - Aquatic Environment and Quality, Ankerstraat 1, 8400 Ostend, Belgium.
| | - S Hoffman
- Institute of Agricultural and Fisheries Research, Animal Sciences Unit - Aquatic Environment and Quality, Ankerstraat 1, 8400 Ostend, Belgium.
| | - G Vandermeersch
- Institute of Agricultural and Fisheries Research, Animal Sciences Unit - Aquatic Environment and Quality, Ankerstraat 1, 8400 Ostend, Belgium.
| | - K Cooreman
- Institute of Agricultural and Fisheries Research, Animal Sciences Unit - Aquatic Environment and Quality, Ankerstraat 1, 8400 Ostend, Belgium.
| | - J Robbens
- Institute of Agricultural and Fisheries Research, Animal Sciences Unit - Aquatic Environment and Quality, Ankerstraat 1, 8400 Ostend, Belgium.
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Vandamme SG, Maes GE, Raeymaekers JAM, Cottenie K, Imsland AK, Hellemans B, Lacroix G, Mac Aoidh E, Martinsohn JT, Martínez P, Robbens J, Vilas R, Volckaert FAM. Regional environmental pressure influences population differentiation in turbot (Scophthalmus maximus). Mol Ecol 2014; 23:618-36. [PMID: 24354713 DOI: 10.1111/mec.12628] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 12/02/2013] [Accepted: 12/08/2013] [Indexed: 01/18/2023]
Abstract
Unravelling the factors shaping the genetic structure of mobile marine species is challenging due to the high potential for gene flow. However, genetic inference can be greatly enhanced by increasing the genomic, geographical or environmental resolution of population genetic studies. Here, we investigated the population structure of turbot (Scophthalmus maximus) by screening 17 random and gene-linked markers in 999 individuals at 290 geographical locations throughout the northeast Atlantic Ocean. A seascape genetics approach with the inclusion of high-resolution oceanographical data was used to quantify the association of genetic variation with spatial, temporal and environmental parameters. Neutral loci identified three subgroups: an Atlantic group, a Baltic Sea group and one on the Irish Shelf. The inclusion of loci putatively under selection suggested an additional break in the North Sea, subdividing southern from northern Atlantic individuals. Environmental and spatial seascape variables correlated marginally with neutral genetic variation, but explained significant proportions (respectively, 8.7% and 10.3%) of adaptive genetic variation. Environmental variables associated with outlier allele frequencies included salinity, temperature, bottom shear stress, dissolved oxygen concentration and depth of the pycnocline. Furthermore, levels of explained adaptive genetic variation differed markedly between basins (3% vs. 12% in the North and Baltic Sea, respectively). We suggest that stable environmental selection pressure contributes to relatively strong local adaptation in the Baltic Sea. Our seascape genetic approach using a large number of sampling locations and associated oceanographical data proved useful for the identification of population units as the basis of management decisions.
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Affiliation(s)
- S G Vandamme
- Institute for Agricultural and Fisheries Research (ILVO), Animal Sciences Unit - Fisheries, Ankerstraat 1, B-8400, Ostend, Belgium; Laboratory of Biodiversity and Evolutionary Genomics, University of Leuven, Charles Deberiotstraat 32, B-3000, Leuven, Belgium
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5
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Weltens R, Vanermen G, Tirez K, Robbens J, Deprez K, Michiels L. Screening tests for hazard classification of complex waste materials--selection of methods. Waste Manag 2012; 32:2208-2217. [PMID: 22917872 DOI: 10.1016/j.wasman.2012.05.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Revised: 04/13/2012] [Accepted: 05/09/2012] [Indexed: 06/01/2023]
Abstract
In this study we describe the development of an alternative methodology for hazard characterization of waste materials. Such an alternative methodology for hazard assessment of complex waste materials is urgently needed, because the lack of a validated instrument leads to arbitrary hazard classification of such complex waste materials. False classification can lead to human and environmental health risks and also has important financial consequences for the waste owner. The Hazardous Waste Directive (HWD) describes the methodology for hazard classification of waste materials. For mirror entries the HWD classification is based upon the hazardous properties (H1-15) of the waste which can be assessed from the hazardous properties of individual identified waste compounds or--if not all compounds are identified--from test results of hazard assessment tests performed on the waste material itself. For the latter the HWD recommends toxicity tests that were initially designed for risk assessment of chemicals in consumer products (pharmaceuticals, cosmetics, biocides, food, etc.). These tests (often using mammals) are not designed nor suitable for the hazard characterization of waste materials. With the present study we want to contribute to the development of an alternative and transparent test strategy for hazard assessment of complex wastes that is in line with the HWD principles for waste classification. It is necessary to cope with this important shortcoming in hazardous waste classification and to demonstrate that alternative methods are available that can be used for hazard assessment of waste materials. Next, by describing the pros and cons of the available methods, and by identifying the needs for additional or further development of test methods, we hope to stimulate research efforts and development in this direction. In this paper we describe promising techniques and argument on the test selection for the pilot study that we have performed on different types of waste materials. Test results are presented in a second paper. As the application of many of the proposed test methods is new in the field of waste management, the principles of the tests are described. The selected tests tackle important hazardous properties but refinement of the test battery is needed to fulfil the a priori conditions.
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Affiliation(s)
- R Weltens
- VITO Flemish Institute for Technological Research, Boeretang 200, B 2400 Mol, Belgium.
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6
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Deprez K, Robbens J, Nobels I, Vanparys C, Vanermen G, Tirez K, Michiels L, Weltens R. DISCRISET: a battery of tests for fast waste classification--application of tests on waste extracts. Waste Manag 2012; 32:2218-2228. [PMID: 22770807 DOI: 10.1016/j.wasman.2012.05.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 04/11/2012] [Accepted: 05/14/2012] [Indexed: 06/01/2023]
Abstract
The Hazardous Waste Directive (HWD, Council Directive 91/689/EC, 1991) provides a framework for classification of hazardous waste, based on 15 Hazard (H)-criteria. For complex wastes the HWD foresees the application of toxicity tests on the waste material itself to assess its toxic properties. However, these proposed test methods often involve mammalian testing, which is not acceptable from an ethical point of view, nor is it feasible economically. The DISCRISET project was initiated to investigate the use of alternative chemical and biological fast screening tests for waste hazard classification. In the first part of the project, different methods were reviewed and a testing strategy was proposed to minimize time and cost of analysis by a tiered approach. This includes as a first tier chemical analysis followed by a general acute toxicity screen as a second tier and as a third tier mechanistic toxicity tests to assess chronic toxicity (genotoxicity, hormone disturbance, teratogenic effects, immunologic activity). In this phase of the project, selected methods were applied to 16 different waste samples from various sources and industries. The first tier chemical tests are recommended for the full characterization of the leachate fraction (inorganics) but not for the organic fraction of samples. Here the chemical characterization is only useful if toxic content is known or suspected. As second tier the fast bacterial test Microtox is validated as a general toxicity screen for the organic fraction (worst case organic extract). Samples that are not classified in tier 1 or 2 are then further investigated in the third tier by the mechanistic toxicity tests and tested for their potential chronic toxicity: immune activity (TNF-α upregulation) is indicative for corrosive, irritating or sensitising effects (H4/H8/H15), reproductive effects (H10) are indicated by hormone disturbance and early life stage abnormalities in fish larvae when exposed to the extracts and mutagenicity and carcinogenicity (H7, H11) are indicated by SOS response induction and increased mutation frequency in the Ames test when exposed to the extracts. Results indicate that the combination of chemical tests and bioassays allows important hazardous properties to be addressed and the tiered approach ensures that the tests are performed quickly and economically. The suggested strategy provides a solid and ethical alternative to the methods described in the HWD and is a vast improvement on the current, arbitrary classification.
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Affiliation(s)
- K Deprez
- University of Hasselt - Biomedical Research Institute, University Hasselt, Campus Diepenbeek, Agoralaan C, B3590 Diepenbeek, Belgium
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Mehta J, Rouah-Martin E, Bekaert K, Devriese L, Blust R, Robbens J. Biosensors and new recognition elements in environmental and food analysis. Comp Biochem Physiol A Mol Integr Physiol 2012. [DOI: 10.1016/j.cbpa.2012.05.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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A'Hara SW, Amouroux P, Argo EE, Avand-Faghih A, Barat A, Barbieri L, Bert TM, Blatrix R, Blin A, Bouktila D, Broome A, Burban C, Capdevielle-Dulac C, Casse N, Chandra S, Cho KJ, Cottrell JE, Crawford CR, Davis MC, Delatte H, Desneux N, Djieto-Lordon C, Dubois MP, El-Mergawy RAAM, Gallardo-Escárate C, Garcia M, Gardiner MM, Guillemaud T, Haye PA, Hellemans B, Hinrichsen P, Jeon JH, Kerdelhué C, Kharrat I, Kim KH, Kim YY, Kwan YS, Labbe EM, LaHood E, Lee KM, Lee WO, Lee YH, Legoff I, Li H, Lin CP, Liu SS, Liu YG, Long D, Maes GE, Magnoux E, Mahanta PC, Makni H, Makni M, Malausa T, Matura R, McKey D, McMillen-Jackson AL, Méndez MA, Mezghani-Khemakhem M, Michel AP, Paul M, Muriel-Cunha J, Nibouche S, Normand F, Palkovacs EP, Pande V, Parmentier K, Peccoud J, Piatscheck F, Puchulutegui C, Ramos R, Ravest G, Richner H, Robbens J, Rochat D, Rousselet J, Saladin V, Sauve M, Schlei O, Schultz TF, Scobie AR, Segovia NI, Seyoum S, Silvain JF, Tabone E, Van Houdt JKJ, Vandamme SG, Volckaert FAM, Wenburg J, Willis TV, Won YJ, Ye NH, Zhang W, Zhang YX. Permanent genetic resources added to Molecular Ecology Resources Database 1 August 2011-30 September 2011. Mol Ecol Resour 2011; 12:185-9. [PMID: 22136175 DOI: 10.1111/j.1755-0998.2011.03088.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
This article documents the addition of 299 microsatellite marker loci and nine pairs of single-nucleotide polymorphism (SNP) EPIC primers to the Molecular Ecology Resources (MER) Database. Loci were developed for the following species: Alosa pseudoharengus, Alosa aestivalis, Aphis spiraecola, Argopecten purpuratus, Coreoleuciscus splendidus, Garra gotyla, Hippodamia convergens, Linnaea borealis, Menippe mercenaria, Menippe adina, Parus major, Pinus densiflora, Portunus trituberculatus, Procontarinia mangiferae, Rhynchophorus ferrugineus, Schizothorax richardsonii, Scophthalmus rhombus, Tetraponera aethiops, Thaumetopoea pityocampa, Tuta absoluta and Ugni molinae. These loci were cross-tested on the following species: Barilius bendelisis, Chiromantes haematocheir, Eriocheir sinensis, Eucalyptus camaldulensis, Eucalyptus cladocalix, Eucalyptus globulus, Garra litaninsis vishwanath, Garra para lissorhynchus, Guindilla trinervis, Hemigrapsus sanguineus, Luma chequen. Guayaba, Myrceugenia colchagüensis, Myrceugenia correifolia, Myrceugenia exsucca, Parasesarma plicatum, Parus major, Portunus pelagicus, Psidium guayaba, Schizothorax richardsonii, Scophthalmus maximus, Tetraponera latifrons, Thaumetopoea bonjeani, Thaumetopoea ispartensis, Thaumetopoea libanotica, Thaumetopoea pinivora, Thaumetopoea pityocampa ena clade, Thaumetopoea solitaria, Thaumetopoea wilkinsoni and Tor putitora. This article also documents the addition of nine EPIC primer pairs for Euphaea decorata, Euphaea formosa, Euphaea ornata and Euphaea yayeyamana.
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Affiliation(s)
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- Forest Research, Northern Research Station, Roslin, Midlothian, Scotland EH25 9SY, UK
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Njumbe Ediage E, Diana Di Mavungu J, Scippo M, Schneider Y, Larondelle Y, Callebaut A, Robbens J, Van Peteghem C, De Saeger S. Screening, identification and quantification of glucosinolates in black radish (Raphanus sativus L. niger) based dietary supplements using liquid chromatography coupled with a photodiode array and liquid chromatography - mass spectrometry. J Chromatogr A 2011; 1218:4395-405. [DOI: 10.1016/j.chroma.2011.05.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Revised: 03/03/2011] [Accepted: 05/09/2011] [Indexed: 10/18/2022]
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Van Dorst B, Mehta J, Rouah-Martin E, De Coen W, Blust R, Robbens J. Screening for cellular targets of chemicals with cDNA phage display. Comp Biochem Physiol A Mol Integr Physiol 2010. [DOI: 10.1016/j.cbpa.2010.06.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Mehta J, Van Dorst B, Rouah-Martin E, De Coen W, Blust R, Robbens J. Selection of high-affinity aptamers for chloramphenicol. Comp Biochem Physiol A Mol Integr Physiol 2010. [DOI: 10.1016/j.cbpa.2010.06.131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Verhaegen Y, Parmentier K, Robbens J, Smagghe G, De Coen W, Cooreman K. Expression profiling of endocrine-disrupting compounds using a shrimp (Crangon crangon) cDNA microarray developed through suppression subtractive hybridization PCR. Comp Biochem Physiol A Mol Integr Physiol 2010. [DOI: 10.1016/j.cbpa.2010.06.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Vanparys C, Maras M, Lenjou M, Robbens J, Van Bockstaele D, Blust R, De Coen W. Flow cytometric cell cycle analysis allows for rapid screening of estrogenicity in MCF-7 breast cancer cells. Toxicol In Vitro 2006; 20:1238-48. [PMID: 16797915 DOI: 10.1016/j.tiv.2006.05.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2006] [Revised: 04/26/2006] [Accepted: 05/04/2006] [Indexed: 11/17/2022]
Abstract
The quantitative measurement of individual cells and their characteristics by means of flow cytometry is already for many years of great value for clinical studies. However, its potential as a tool in (eco)toxicology has only recently been discovered. Analysis of cell cycle kinetics with DNA-staining dyes can offer a valuable alternative to detect effects of chemicals on cell proliferation, an important endpoint in screening estrogen-like properties of chemicals. In the present study, flow cytometric cell cycle analysis in growth arrested MCF-7 cells exposed to five xenoestrogens correspond well with cell proliferation results of the conventionally used E-screen assay. Moreover, re-induction of proliferation in MCF-7 cells, indicated by the percentage of cells in S(ynthesis)-phase, is most pronounced after 24 h exposure, thus allowing a faster screening of xenoestrogens. This flow cytometric proliferation assay confirms that the estrogenic activity of structurally analogous parabens is mediated by the estrogen receptor pathway and is proportional to the alkyl chain length. Moreover, the ER-mediated mode of action of two fluorotelomer alcohols (6:2 FTOH and 8:2 FTOH), recently reported as xenoestrogenic, could be elucidated. These results support the potential of flow cytometric cell cycle kinetics as a screening assay for estrogen-like properties of chemicals.
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Affiliation(s)
- C Vanparys
- Laboratory of Ecophysiology, Biochemistry and Toxicology, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium.
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Lambrechts A, Braun A, Jonckheere V, Aszodi A, Lanier LM, Robbens J, Van Colen I, Vandekerckhove J, Fässler R, Ampe C. Profilin II is alternatively spliced, resulting in profilin isoforms that are differentially expressed and have distinct biochemical properties. Mol Cell Biol 2000; 20:8209-19. [PMID: 11027290 PMCID: PMC86430 DOI: 10.1128/mcb.20.21.8209-8219.2000] [Citation(s) in RCA: 70] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We deduced the structure of the mouse profilin II gene. It contains five exons that can generate four different transcripts by alternative splicing. Two transcripts encode different profilin II isoforms (designated IIa and IIb) that have similar affinities for actin but different affinities for polyphosphoinositides and proline-rich sequences. Profilins IIa and IIb are also present in humans, suggesting that all mammals have three profilin isoforms. Profilin I is the major form in all tissues, except in the brain, where profilin IIa is most abundant. Profilin IIb appears to be a minor form, and its expression is restricted to a limited number of tissues, indicating that the alternative splicing is tightly regulated. Western blotting and whole-mount in situ hybridization show that, in contrast to the expression of profilin I, the expression level of profilin IIa is developmentally regulated. In situ hybridization of adult brain sections reveals overlapping expression patterns of profilins I and IIa.
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Affiliation(s)
- A Lambrechts
- Department of Biochemistry, Ghent University and Flanders Interuniversity Institute for Biotechnology, 9000 Ghent, Belgium
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Robbens J, Louahed J, De Pestel K, Van Colen I, Ampe C, Vandekerckhove J, Renauld JC. Murine adseverin (D5), a novel member of the gelsolin family, and murine adseverin are induced by interleukin-9 in T-helper lymphocytes. Mol Cell Biol 1998; 18:4589-96. [PMID: 9671468 PMCID: PMC109044 DOI: 10.1128/mcb.18.8.4589] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
We identified a number of upregulated genes by differential screening of interleukin-9-stimulated T-helper lymphocytes. Interestingly, two of these messengers encode proteins that are similar to proteins of the gelsolin family. The first displays a typical structure of six homologous domains and shows a high level of identity (90%) with bovine adseverin (or scinderin) and may therefore be considered the murine adseverin homolog. The second encodes a protein with only five segments. Sequence comparison shows that most of the fifth segment and a short amino-terminal part of the sixth segment (amino acids 528 to 628 of adseverin) are missing, and thus, this form may represent an alternatively spliced product derived from the same gene. The corresponding protein is called mouse adseverin (D5). We expressed both proteins in Escherichia coli and show that mouse adseverin displays the typical characteristics of all members of the gelsolin family with respect to actin binding (capping, severing, and nucleation) and its regulation by Ca2+. In contrast, mouse adseverin (D5) fails to nucleate actin polymerization, although like mouse adseverin and gelsolin, it severs and caps actin filaments in a Ca2+-dependent manner. Adseverin is present in all of the tissues and most of the cell lines tested, although at low concentrations. Mouse adseverin (D5) was found only in blood cells and in cell lines derived from T-helper lymphocytes and mast cells, where it is weakly expressed. In a gel filtration experiment, we demonstrated that mouse adseverin forms a 1:2 complex with G actin which is stable only in the presence of Ca2+, while no stable complex was observed for mouse adseverin (D5).
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Affiliation(s)
- J Robbens
- V.I.B., Flanders Interuniversity Institute for Biotechnology and Department of Biochemistry, Faculty of Medicine, Universiteit Gent, B-9000 Gent, Belgium.
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Robbens J, Raeymaekers A, Steidler L, Fiers W, Remaut E. Production of soluble and active recombinant murine interleukin-2 in Escherichia coli: high level expression, Kil-induced release, and purification. Protein Expr Purif 1995; 6:481-6. [PMID: 8527934 DOI: 10.1006/prep.1995.1064] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We describe the production of soluble murine interleukin-2 (mIL2) and its purification following regulated release in the growth medium of Escherichia coli. The system is based on the ability of the Kil protein of pMB9 to release periplasmic proteins into the growth medium. As the kil gene is under control of the strong, but well regulatable pL promoter, the kil bearing plasmid is stably maintained in the cell. mIL2, fused to the outer membrane protein A (OmpA) signal peptide, was secreted into the periplasm and subsequently released into the growth medium after induction of the kil gene. This strategy allows a quick and easy purification of the heterologous protein without using strong denaturants or detergents, yielding a native protein with a specific biological activity equal to the natural mIL2. The system permits the production of mIL2 at levels up to 16 mg/liter. From a 12-liter fermentation, a final yield of about 30 mg of pure mIL2 was obtained.
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Affiliation(s)
- J Robbens
- Laboratory of Molecular Biology, Universiteit Gent, Belgium
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Guisez Y, Demolder J, Mertens N, Raeymaekers A, Plaetinck G, Robbens J, Vandekerckhove J, Remaut E, Fiers W. High-level expression, purification, and renaturation of recombinant murine interleukin-2 from Escherichia coli. Protein Expr Purif 1993; 4:240-6. [PMID: 8390881 DOI: 10.1006/prep.1993.1031] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A murine interleukin-2 (mIL-2)-encoding cDNA, isolated from a stimulated EL4 mRNA library, was used to construct several expression plasmids directing synthesis of the mature protein in Escherichia coli. The expression was under control of either the PTrp or the PL promoter. Using these systems, a high-level expression of between 10 and 35% of the total cellular protein was obtained. The mIL-2 protein, present as insoluble inclusion bodies, could be solubilized in a chaotropic mixture and was partially purified by preparative gel filtration under denaturing conditions. After renaturation, the protein was further purified to homogeneity by anion-exchange chromatography. Depending on the fermentation, induction, and renaturation conditions, the yield ranged between 0.35 and 1 mg of purified mIL-2/g wet cells. The specific biological activity was about 10(7) units/mg and the endotoxin content < 4 ng/mg pure recombinant protein.
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Affiliation(s)
- Y Guisez
- Laboratory of Molecular Biology, University, Gent, Belgium
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Guisez Y, Robbens J, Remaut E, Fiers W. Folding of the MS2 coat protein in Escherichia coli is modulated by translational pauses resulting from mRNA secondary structure and codon usage: a hypothesis. J Theor Biol 1993; 162:243-52. [PMID: 8412226 DOI: 10.1006/jtbi.1993.1085] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Possible translational pauses within the coat protein of the RNA bacteriophage MS2 were located on the basis of a distribution plot of rare codons and RNA secondary structure. It appeared that the position of certain codon pauses corresponds with the size of some nascent polypeptide intermediates, which have been isolated from MS2-infected cells. Other accumulated polypeptide intermediates seemed to be related to RNA regions, where double-stranded secondary structures occur, which probably impede the movement of ribosomes during chain elongation. We assume that a discontinuous translation rate is designed to allow optimal folding of this (and other) polypeptide(s).
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Affiliation(s)
- Y Guisez
- Laboratory of Molecular Biology, Gent University, Belgium
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