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Matković K, Gerić M, Kazensky L, Milić M, Kašuba V, Cvitković A, Sanković M, Šumanovac A, Møller P, Gajski G. Comparison of DNA damage in fresh and frozen blood samples: implications for the comet assay in human biomonitoring studies. Arch Toxicol 2024:10.1007/s00204-024-03823-1. [PMID: 39004639 DOI: 10.1007/s00204-024-03823-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Accepted: 07/04/2024] [Indexed: 07/16/2024]
Abstract
The use of the comet assay in large biomonitoring studies may present logistical and technical challenges because of the processing of numerous samples. Proper sample preservation becomes imperative to prevent spurious DNA breakage. Previous research has shown the feasibility of conducting the comet assay on frozen blood samples, highlighting the potential of freezing at - 80 °C in preserving DNA integrity. Nonetheless, this approach presents challenges, including potential DNA damage during freezing and thawing, variability in processing, and the need for standardized protocols. Our objective was to evaluate whether there are comparable results in DNA migration assessed by the comet assay between fresh and frozen blood samples on a larger scale (N = 373). In our findings, elevated DNA migration was evident in frozen samples relative to fresh ones. Additionally, smoking, alcohol consumption, and season were linked to increased DNA damage levels in whole blood cells. Based on our results and available literature, conducting the comet assay on frozen blood samples emerges as a practical and efficient approach for biomonitoring and epidemiological research. This method enables the assessment of DNA damage in large populations over time, with samples, if properly cryopreserved, that may be used for years, possibly even decades. These observations hold significant implications for large-scale human biomonitoring and long-term epidemiological studies, particularly when samples are collected during fieldwork or obtained from biobanks. Continued method optimization and validation efforts are essential to enhance the utility of this approach in environmental and occupational health studies, emphasizing caution when comparing data obtained between fresh and frozen blood samples.
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Affiliation(s)
- Katarina Matković
- Division of Toxicology, Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Marko Gerić
- Division of Toxicology, Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Luka Kazensky
- Division of Toxicology, Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Mirta Milić
- Division of Toxicology, Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Vilena Kašuba
- Division of Toxicology, Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - Ante Cvitković
- Teaching Institute of Public Health Brod-Posavina County, Slavonski Brod, Croatia
- Faculty of Dental Medicine and Health, J. J. Strossmayer University of Osijek, Osijek, Croatia
- Faculty of Medicine, J. J. Strossmayer University of Osijek, Osijek, Croatia
| | - Mandica Sanković
- City of Vinkovci, Department of Physical Planning, Construction and Environmental Protection, Vinkovci, Croatia
| | - Antun Šumanovac
- Faculty of Medicine, J. J. Strossmayer University of Osijek, Osijek, Croatia
- County General Hospital Vinkovci, Vinkovci, Croatia
| | - Peter Møller
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Copenhagen, Denmark
| | - Goran Gajski
- Division of Toxicology, Institute for Medical Research and Occupational Health, Zagreb, Croatia.
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2
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Kazensky L, Matković K, Gerić M, Žegura B, Pehnec G, Gajski G. Impact of indoor air pollution on DNA damage and chromosome stability: a systematic review. Arch Toxicol 2024:10.1007/s00204-024-03785-4. [PMID: 38805047 DOI: 10.1007/s00204-024-03785-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 05/08/2024] [Indexed: 05/29/2024]
Abstract
Indoor air pollution is becoming a rising public health problem and is largely resulting from the burning of solid fuels and heating in households. Burning these fuels produces harmful compounds, such as particulate matter regarded as a major health risk, particularly affecting the onset and exacerbation of respiratory diseases. As exposure to polluted indoor air can cause DNA damage including DNA sd breaks as well as chromosomal damage, in this paper, we aim to provide an overview of the impact of indoor air pollution on DNA damage and genome stability by reviewing the scientific papers that have used the comet, micronucleus, and γ-H2AX assays. These methods are valuable tools in human biomonitoring and for studying the mechanisms of action of various pollutants, and are readily used for the assessment of primary DNA damage and genome instability induced by air pollutants by measuring different aspects of DNA and chromosomal damage. Based on our search, in selected studies (in vitro, animal models, and human biomonitoring), we found generally higher levels of DNA strand breaks and chromosomal damage due to indoor air pollutants compared to matched control or unexposed groups. In summary, our systematic review reveals the importance of the comet, micronucleus, and γ-H2AX assays as sensitive tools for the evaluation of DNA and genome damaging potential of different indoor air pollutants. Additionally, research in this particular direction is warranted since little is still known about the level of indoor air pollution in households or public buildings and its impact on genetic material. Future studies should focus on research investigating the possible impact of indoor air pollutants in complex mixtures on the genome and relate pollutants to possible health outcomes.
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Affiliation(s)
- Luka Kazensky
- Division of Toxicology, Institute for Medical Research and Occupational Health, 10000, Zagreb, Croatia
| | - Katarina Matković
- Division of Toxicology, Institute for Medical Research and Occupational Health, 10000, Zagreb, Croatia
| | - Marko Gerić
- Division of Toxicology, Institute for Medical Research and Occupational Health, 10000, Zagreb, Croatia
| | - Bojana Žegura
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, 1000, Ljubljana, Slovenia
| | - Gordana Pehnec
- Division of Environmental Hygiene, Institute for Medical Research and Occupational Health, 10000, Zagreb, Croatia
| | - Goran Gajski
- Division of Toxicology, Institute for Medical Research and Occupational Health, 10000, Zagreb, Croatia.
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3
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Brooks SJ, Gomes T, Almeida AC, Christou M, Zheng C, Shaposhnikov S, Popa DG, Georgescu F, Oancea F. An ecotoxicological assessment of a strigolactone mimic used as the active ingredient in a plant biostimulant formulation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 275:116244. [PMID: 38537480 DOI: 10.1016/j.ecoenv.2024.116244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/26/2024] [Accepted: 03/18/2024] [Indexed: 04/12/2024]
Abstract
A risk assessment on the aquatic toxicity of the plant biostimulant strigolactone mimic (2-(4-methyl-5-oxo-2,5-dihydro-furan-2-yloxy)-benzo[de]isoquinoline-1,3-dione (SL-6) was performed using a suite of standardised bioassays representing different trophic groups and acute and chronic endpoints. In freshwater, three trophic groups of algae, crustacea and fish were used. Whilst in seawater, algae (unicellular and macroalgae), Crustacea and Mollusca were employed. In addition, the genotoxicity of SL-6 was determined with the comet assessment performed on unicellular marine algae, oysters, and fish embryos. This was the first time ecotoxicity tests have been performed on SL-6. In freshwater, the lowest LOEC was measured in the unicellular algae at 0.31 mg/L SL-6. Although, similar LOEC values were found for embryo malformations and impacts on hatching rate in zebrafish (LOEC 0.31-0.33 mg/L). Consistent malformations of pericardial and yolk sac oedemas were identified in the zebrafish embryos at 0.31 mg/L. In marine species, the lowest LOEC was found for both Tisbe battagliai mortality and microalgae growth at an SL-6 concentration of 1.0 mg/L. Significant genotoxicity was observed above control levels at 0.0031 mg/L SL-6 in the unicellular algae and 0.001 mg/L SL-6 in the oyster and zebrafish larvae. When applying the simple risk assessment, based on the lowest NOECs and appropriate assessment factors, the calculated predicted no effect concentration (PNEC), for the ecotoxicity and the genotoxicity tests were 1.0 µg/L and 0.01 µg/L respectively.
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Affiliation(s)
- Steven J Brooks
- Norwegian Institute for Water Research (NIVA), Økernveien 94, Oslo 0579, Norway.
| | - Tânia Gomes
- Norwegian Institute for Water Research (NIVA), Økernveien 94, Oslo 0579, Norway
| | | | - Maria Christou
- Norwegian Institute for Water Research (NIVA), Økernveien 94, Oslo 0579, Norway
| | | | | | - Daria G Popa
- ICECHIM, National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, Splaiul Independentei No. 202, Sector 6, Bucharest 060021, Romania
| | | | - Florin Oancea
- ICECHIM, National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, Splaiul Independentei No. 202, Sector 6, Bucharest 060021, Romania
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Ladeira C, Møller P, Giovannelli L, Gajski G, Haveric A, Bankoglu EE, Azqueta A, Gerić M, Stopper H, Cabêda J, Tonin FS, Collins A. The Comet Assay as a Tool in Human Biomonitoring Studies of Environmental and Occupational Exposure to Chemicals-A Systematic Scoping Review. TOXICS 2024; 12:270. [PMID: 38668493 PMCID: PMC11054096 DOI: 10.3390/toxics12040270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/31/2024] [Accepted: 04/02/2024] [Indexed: 04/29/2024]
Abstract
Biomonitoring of human populations exposed to chemical substances that can act as potential mutagens or carcinogens, may enable the detection of damage and early disease prevention. In recent years, the comet assay has become an important tool for assessing DNA damage, both in environmental and occupational exposure contexts. To evidence the role of the comet assay in human biomonitoring, we have analysed original research studies of environmental or occupational exposure that used the comet assay in their assessments, following the PRISMA-ScR method (preferred reporting items for systematic reviews and meta-analyses extension for scoping reviews). Groups of chemicals were designated according to a broad classification, and the results obtained from over 300 original studies (n = 123 on air pollutants, n = 14 on anaesthetics, n = 18 on antineoplastic drugs, n = 57 on heavy metals, n = 59 on pesticides, and n = 49 on solvents) showed overall higher values of DNA strand breaks in the exposed subjects in comparison with the unexposed. In summary, our systematic scoping review strengthens the relevance of the use of the comet assay in assessing DNA damage in human biomonitoring studies.
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Affiliation(s)
- Carina Ladeira
- H&TRC-Health & Technology Research Center, ESTeSL-Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal
- NOVA National School of Public Health, Public Health Research Centre, Universidade NOVA de Lisboa, 1600-560 Lisbon, Portugal
| | - Peter Møller
- Department of Public Health, Section of Environmental Health, University of Copenhagen, 1172 Copenhagen, Denmark;
| | - Lisa Giovannelli
- Department NEUROFARBA, Section Pharmacology and Toxicology, University of Florence, 50121 Florence, Italy;
| | - Goran Gajski
- Division of Toxicology, Institute for Medical Research and Occupational Health, 10000 Zagreb, Croatia; (G.G.); (M.G.)
| | - Anja Haveric
- Institute for Genetic Engineering and Biotechnology, University of Sarajevo, 71000 Sarajevo, Bosnia and Herzegovina;
| | - Ezgi Eyluel Bankoglu
- Institute of Pharmacology and Toxicology, University of Würzburg, 97078 Würzburg, Germany; (E.E.B.); (H.S.)
| | - Amaya Azqueta
- Department of Pharmaceutical Sciences, School of Pharmacy and Nutrition, University of Navarra, 31009 Pamplona, Spain;
| | - Marko Gerić
- Division of Toxicology, Institute for Medical Research and Occupational Health, 10000 Zagreb, Croatia; (G.G.); (M.G.)
| | - Helga Stopper
- Institute of Pharmacology and Toxicology, University of Würzburg, 97078 Würzburg, Germany; (E.E.B.); (H.S.)
| | - José Cabêda
- Guarda Nacional Republicana, Destacamento Territorial de Vila Franca de Xira, Núcleo de Proteção Ambiental, 1500-124 Lisbon, Portugal;
| | - Fernanda S. Tonin
- Pharmaceutical Care Research Group, Universidad de Granada, 18012 Granada, Spain;
| | - Andrew Collins
- Department of Nutrition, University of Oslo, 0316 Oslo, Norway;
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Cao L, Miao Y, Liu Y, Huang S, Tian L, Yu M, Huo J, Zhang L, Li X, Chen J. Genotoxic mode of action and threshold exploration of 2-methyl furan under 120-day sub-chronic exposure in male Sprague-Dawley rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 273:116125. [PMID: 38394755 DOI: 10.1016/j.ecoenv.2024.116125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/15/2024] [Accepted: 02/18/2024] [Indexed: 02/25/2024]
Abstract
2-Methylfuran (2-MF) is an important member of the furan family generated during food thermal processing. An in-vivo multiple endpoint genotoxicity assessment system was applied to explore the genotoxic mode of action and threshold of 2-MF. Male Sprague-Dawley rats received 2-MF by oral gavage at doses of 0.16, 0.625, 2.5, and 10 mg/kg.bw/day for 120 days. An additional 15 days were granted for recovery. The Pig-a gene mutation frequency of RET and RBC showed significant increases among the 2-MF groups on day 120. After a 15-day recovery period, the Pig-a gene mutation frequency returned to levels similar to those in the vehicle control. The tail intensity (TI) values of peripheral blood cells at a dose of 10 mg/kg.bw/day significantly increased from day 4 and remained at a high level after the recovery period. No statistical difference was found in the micronucleus frequency of peripheral blood between any 2-MF dose group and the corn oil group at any timepoint. 2-MF may not induce the production of micronuclei, but it could cause DNA breakage. It could not be ruled out that 2-MF may accumulate in vivo and cause gene mutations. Hence, DNA, other than the spindle, may be directly targeted. The mode of action of 2-MF may be that it was metabolized by EPHX1 to more DNA-active metabolites, thus leading to oxidative and direct DNA damage. The point of departure (PoD) of 2-MF-induced genotoxicity was derived as 0.506 mg/kg bw/day.
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Affiliation(s)
- Li Cao
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan Provincial Key Laboratory of Food Safety Monitoring and Risk Assessment, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yeqiu Miao
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan Provincial Key Laboratory of Food Safety Monitoring and Risk Assessment, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yufei Liu
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan Provincial Key Laboratory of Food Safety Monitoring and Risk Assessment, Sichuan University, Chengdu, Sichuan 610041, China
| | - Shuzhen Huang
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan Provincial Key Laboratory of Food Safety Monitoring and Risk Assessment, Sichuan University, Chengdu, Sichuan 610041, China
| | - Luojia Tian
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan Provincial Key Laboratory of Food Safety Monitoring and Risk Assessment, Sichuan University, Chengdu, Sichuan 610041, China
| | - Mengqi Yu
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan Provincial Key Laboratory of Food Safety Monitoring and Risk Assessment, Sichuan University, Chengdu, Sichuan 610041, China
| | - Jiao Huo
- Department of Nutrition and Food Safety, Chongqing Center for Disease Control and Prevention, Chongqing 400042, China
| | - Lishi Zhang
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan Provincial Key Laboratory of Food Safety Monitoring and Risk Assessment, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xiaomeng Li
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan Provincial Key Laboratory of Food Safety Monitoring and Risk Assessment, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Jinyao Chen
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan Provincial Key Laboratory of Food Safety Monitoring and Risk Assessment, Sichuan University, Chengdu, Sichuan 610041, China.
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6
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Rosner A, Ballarin L, Barnay-Verdier S, Borisenko I, Drago L, Drobne D, Concetta Eliso M, Harbuzov Z, Grimaldi A, Guy-Haim T, Karahan A, Lynch I, Giulia Lionetto M, Martinez P, Mehennaoui K, Oruc Ozcan E, Pinsino A, Paz G, Rinkevich B, Spagnuolo A, Sugni M, Cambier S. A broad-taxa approach as an important concept in ecotoxicological studies and pollution monitoring. Biol Rev Camb Philos Soc 2024; 99:131-176. [PMID: 37698089 DOI: 10.1111/brv.13015] [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: 08/31/2022] [Revised: 08/23/2023] [Accepted: 08/28/2023] [Indexed: 09/13/2023]
Abstract
Aquatic invertebrates play a pivotal role in (eco)toxicological assessments because they offer ethical, cost-effective and repeatable testing options. Additionally, their significance in the food chain and their ability to represent diverse aquatic ecosystems make them valuable subjects for (eco)toxicological studies. To ensure consistency and comparability across studies, international (eco)toxicology guidelines have been used to establish standardised methods and protocols for data collection, analysis and interpretation. However, the current standardised protocols primarily focus on a limited number of aquatic invertebrate species, mainly from Arthropoda, Mollusca and Annelida. These protocols are suitable for basic toxicity screening, effectively assessing the immediate and severe effects of toxic substances on organisms. For more comprehensive and ecologically relevant assessments, particularly those addressing long-term effects and ecosystem-wide impacts, we recommended the use of a broader diversity of species, since the present choice of taxa exacerbates the limited scope of basic ecotoxicological studies. This review provides a comprehensive overview of (eco)toxicological studies, focusing on major aquatic invertebrate taxa and how they are used to assess the impact of chemicals in diverse aquatic environments. The present work supports the use of a broad-taxa approach in basic environmental assessments, as it better represents the natural populations inhabiting various ecosystems. Advances in omics and other biochemical and computational techniques make the broad-taxa approach more feasible, enabling mechanistic studies on non-model organisms. By combining these approaches with in vitro techniques together with the broad-taxa approach, researchers can gain insights into less-explored impacts of pollution, such as changes in population diversity, the development of tolerance and transgenerational inheritance of pollution responses, the impact on organism phenotypic plasticity, biological invasion outcomes, social behaviour changes, metabolome changes, regeneration phenomena, disease susceptibility and tissue pathologies. This review also emphasises the need for harmonised data-reporting standards and minimum annotation checklists to ensure that research results are findable, accessible, interoperable and reusable (FAIR), maximising the use and reusability of data. The ultimate goal is to encourage integrated and holistic problem-focused collaboration between diverse scientific disciplines, international standardisation organisations and decision-making bodies, with a focus on transdisciplinary knowledge co-production for the One-Health approach.
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Affiliation(s)
- Amalia Rosner
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, PO 2336 Sha'ar Palmer 1, Haifa, 3102201, Israel
| | - Loriano Ballarin
- Department of Biology, University of Padova, via Ugo Bassi 58/B, Padova, I-35121, Italy
| | - Stéphanie Barnay-Verdier
- Sorbonne Université; CNRS, INSERM, Université Côte d'Azur, Institute for Research on Cancer and Aging Nice, 28 avenue Valombrose, Nice, F-06107, France
| | - Ilya Borisenko
- Faculty of Biology, Department of Embryology, Saint Petersburg State University, Universitetskaya embankment 7/9, Saint Petersburg, 199034, Russia
| | - Laura Drago
- Department of Biology, University of Padova, via Ugo Bassi 58/B, Padova, I-35121, Italy
| | - Damjana Drobne
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Večna pot 111, Ljubljana, 1111, Slovenia
| | - Maria Concetta Eliso
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Naples, 80121, Italy
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Zoya Harbuzov
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, PO 2336 Sha'ar Palmer 1, Haifa, 3102201, Israel
- Leon H. Charney School of Marine Sciences, Department of Marine Biology, University of Haifa, 199 Aba Koushy Ave., Haifa, 3498838, Israel
| | - Annalisa Grimaldi
- Department of Biotechnology and Life Sciences, University of Insubria, Via J. H. Dunant, Varese, 3-21100, Italy
| | - Tamar Guy-Haim
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, PO 2336 Sha'ar Palmer 1, Haifa, 3102201, Israel
| | - Arzu Karahan
- Middle East Technical University, Institute of Marine Sciences, Erdemli-Mersin, PO 28, 33731, Turkey
| | - Iseult Lynch
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, B15 2TT, UK
| | - Maria Giulia Lionetto
- Department of Biological and Environmental Sciences and Technologies, University of Salento, via prov. le Lecce -Monteroni, Lecce, I-73100, Italy
- NBFC, National Biodiversity Future Center, Piazza Marina, 61, Palermo, I-90133, Italy
| | - Pedro Martinez
- Department de Genètica, Microbiologia i Estadística, Universitat de Barcelona, Av. Diagonal 643, Barcelona, 08028, Spain
- Institut Català de Recerca i Estudis Avançats (ICREA), Passeig de Lluís Companys, Barcelona, 08010, Spain
| | - Kahina Mehennaoui
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), 41, rue du Brill, Belvaux, L-4422, Luxembourg
| | - Elif Oruc Ozcan
- Faculty of Arts and Science, Department of Biology, Cukurova University, Balcali, Saricam, Adana, 01330, Turkey
| | - Annalisa Pinsino
- National Research Council, Institute of Translational Pharmacology (IFT), National Research Council (CNR), Via Ugo La Malfa 153, Palermo, 90146, Italy
| | - Guy Paz
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, PO 2336 Sha'ar Palmer 1, Haifa, 3102201, Israel
| | - Baruch Rinkevich
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, PO 2336 Sha'ar Palmer 1, Haifa, 3102201, Israel
| | - Antonietta Spagnuolo
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Naples, 80121, Italy
| | - Michela Sugni
- Department of Environmental Science and Policy, University of Milan, Via Celoria 26, Milan, 20133, Italy
| | - Sébastien Cambier
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), 41, rue du Brill, Belvaux, L-4422, Luxembourg
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7
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Collia M, Møller P, Langie SAS, Vettorazzi A, Azqueta A. Further development of CometChip technology to measure DNA damage in vitro and in vivo: Comparison with the 2 gels/slide format of the standard and enzyme-modified comet assay. Toxicology 2024; 501:153690. [PMID: 38040084 DOI: 10.1016/j.tox.2023.153690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/17/2023] [Accepted: 11/27/2023] [Indexed: 12/03/2023]
Abstract
DNA damage plays a pivotal role in carcinogenesis and other diseases. The comet assay has been used for more than three decades to measure DNA damages. The 1-2 gels/slide format is the most used version of the assay. In 2010, a high throughput 96 macrowell format with a spatially encoded array of microwells patterned in agarose was developed, called the CometChip. The commercial version (CometChip®) has been used for the in vitro standard version of the comet assay (following the manufacturer's protocol), although it has not been compared directly with the 2 gels/slide format. The aim of this work is to developed new protocols to allow use of DNA repair enzymes as well as the analysis of in vivo frozen tissue samples in the CometChip®, to increase the throughput, and to compare its performance with the classic 2 gels/slide format. We adapted the manufacturer's protocol to allow the use of snap frozen tissue samples, using male Wistar rats orally dosed with methyl methanesulfonate (MMS, 200 mg/kg b.w.), and to detect altered nucleobases using DNA repair enzymes, with TK6 cells treated with potassium bromate (KBrO3, 0-4 mM, 3 h) and formamidopyrimidine DNA glycosylase (Fpg) as the enzyme. Regarding the standard version of the comet, we performed thee comparison of the 2 gel/slide and CometChip® format (using the the manufacturer's protocol), using TK6 cells with MMS (100-800 µM, 1 h) and hydrogen peroxide (H2O2, 7.7-122.5 µM, 5 min) as testing compounds. In all cases the CometChip® was performed along with the 2 gels/slide format. Results obtained were comparable and the CometChip® is a good alternative to the 2 gels/slide format when a higher throughput is required.
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Affiliation(s)
- Miguel Collia
- Department of Pharmaceutical Sciences, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
| | - Peter Møller
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Copenhagen, Denmark
| | - Sabine A S Langie
- Department of Pharmacology & Toxicology, School for Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, the Netherlands
| | - Ariane Vettorazzi
- Department of Pharmaceutical Sciences, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
| | - Amaya Azqueta
- Department of Pharmaceutical Sciences, School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.
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8
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Møller P, Azqueta A, Rodriguez-Garraus A, Bakuradze T, Richling E, Bankoglu EE, Stopper H, Claudino Bastos V, Langie SAS, Jensen A, Ristori S, Scavone F, Giovannelli L, Wojewódzka M, Kruszewski M, Valdiglesias V, Laffon B, Costa C, Costa S, Paulo Teixeira J, Marino M, Del Bo' C, Riso P, Zheng C, Shaposhnikov S, Collins A. Long-term cryopreservation of potassium bromate positive assay controls for measurement of oxidatively damaged DNA by the Fpg-modified comet assay: results from the hCOMET ring trial. Mutagenesis 2023; 38:264-272. [PMID: 37357815 DOI: 10.1093/mutage/gead020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 06/23/2023] [Indexed: 06/27/2023] Open
Abstract
The formamidopyrimidine DNA glycosylase (Fpg)-modified comet assay is widely used for the measurement of oxidatively generated damage to DNA. However, there has not been a recommended long-term positive control for this version of the comet assay. We have investigated potassium bromate as a positive control for the Fpg-modified comet assay because it generates many Fpg-sensitive sites with a little concurrent generation of DNA strand breaks. Eight laboratories used the same procedure for the treatment of monocytic THP-1 cells with potassium bromate (0, 0.5, 1.5, and 4.5 mM) and subsequent cryopreservation in a freezing medium consisting of 50% foetal bovine serum, 40% RPMI-1640 medium, and 10% dimethyl sulphoxide. The samples were analysed by the Fpg-modified comet assay three times over a 3-year period. All laboratories obtained a positive concentration-response relationship in cryopreserved samples (linear regression coefficients ranging from 0.79 to 0.99). However, there was a wide difference in the levels of Fpg-sensitive sites between the laboratory with the lowest (4.2% Tail DNA) and highest (74% Tail DNA) values in THP-1 cells after exposure to 4.5 mM KBrO3. In an attempt to assess sources of inter-laboratory variation in Fpg-sensitive sites, comet images from one experiment in each laboratory were forwarded to a central laboratory for visual scoring. There was high consistency between measurements of %Tail DNA values in each laboratory and the visual score of the same comets done in the central laboratory (r = 0.98, P < 0.001, linear regression). In conclusion, the results show that potassium bromate is a suitable positive comet assay control.
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Affiliation(s)
- Peter Møller
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade 5A, DK-1014 Copenhagen K, Denmark
| | - Amaya Azqueta
- Department of Pharmacology and Toxicology, School of Pharmacy and Nutrition, University of Navarra, C/Irunlarrea 1, 31009 Pamplona, Spain
| | - Adriana Rodriguez-Garraus
- Department of Pharmacology and Toxicology, School of Pharmacy and Nutrition, University of Navarra, C/Irunlarrea 1, 31009 Pamplona, Spain
| | - Tamara Bakuradze
- Food Chemistry and Toxicology, Department of Chemistry, Rhineland-Palatinate Technical University Kaiserslautern-Landau, Erwin-Schroedinger-Str. 52, D-67663 Kaiserslautern, Germany
| | - Elke Richling
- Food Chemistry and Toxicology, Department of Chemistry, Rhineland-Palatinate Technical University Kaiserslautern-Landau, Erwin-Schroedinger-Str. 52, D-67663 Kaiserslautern, Germany
| | - Ezgi Eyluel Bankoglu
- Institute of Pharmacology and Toxicology, University of Wuerzburg, Versbacher Str. 9, 97078 Wuerzburg, Germany
| | - Helga Stopper
- Institute of Pharmacology and Toxicology, University of Wuerzburg, Versbacher Str. 9, 97078 Wuerzburg, Germany
| | - Victoria Claudino Bastos
- Department of Pharmacology and Toxicology, School for Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, The Netherlands
| | - Sabine A S Langie
- Department of Pharmacology and Toxicology, School for Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, The Netherlands
| | - Annie Jensen
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade 5A, DK-1014 Copenhagen K, Denmark
| | - Sara Ristori
- Department of Neuroscience, Psychology, Pharmacology and Child Health (NEUROFARBA), Section Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Francesca Scavone
- Department of Neuroscience, Psychology, Pharmacology and Child Health (NEUROFARBA), Section Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Lisa Giovannelli
- Department of Neuroscience, Psychology, Pharmacology and Child Health (NEUROFARBA), Section Pharmacology and Toxicology, University of Florence, Florence, Italy
| | - Maria Wojewódzka
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 01-310 Warsaw, Poland
| | - Marcin Kruszewski
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 01-310 Warsaw, Poland
- Department of Molecular Biology and Translational Research, Institute of Rural Health, Jaczewskiego 2, 20-090 Lublin, Poland
| | - Vanessa Valdiglesias
- Universidade da Coruña, Grupo NanoToxGen, Centro Interdisciplinar de Química e Bioloxía - CICA, Departamento de Biología, A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), A Coruña, Spain
| | - Blanca Laffon
- Instituto de Investigación Biomédica de A Coruña (INIBIC), A Coruña, Spain
- Universidade da Coruña, Grupo DICOMOSA, Centro Interdisciplinar de Química e Bioloxía - CICA, Departamento de Psicología, A Coruña, Spain
| | - Carla Costa
- Environmental Health Department, National Institute of Health, Porto, Portugal
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
| | - Solange Costa
- Environmental Health Department, National Institute of Health, Porto, Portugal
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
| | - João Paulo Teixeira
- Environmental Health Department, National Institute of Health, Porto, Portugal
- EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
| | - Mirko Marino
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, 20133 Milan, Italy
| | - Cristian Del Bo'
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, 20133 Milan, Italy
| | - Patrizia Riso
- Department of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, 20133 Milan, Italy
| | - Congying Zheng
- Department of Pharmacology and Toxicology, School for Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, The Netherlands
- Department of Nutrition, University of Oslo, Norway
| | | | - Andrew Collins
- Department of Nutrition, University of Oslo, Norway
- NorGenotech AS, Oslo, Norway
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9
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Zhao Z, Wu Y, Liang X, Liu J, Luo Y, Zhang Y, Li T, Liu C, Luo X, Chen J, Wang Y, Wang S, Wu T, Zhang S, Yang D, Li W, Yan J, Ke Z, Luo F. Sonodynamic Therapy of NRP2 Monoclonal Antibody-Guided MOFs@COF Targeted Disruption of Mitochondrial and Endoplasmic Reticulum Homeostasis to Induce Autophagy-Dependent Ferroptosis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303872. [PMID: 37661565 PMCID: PMC10602529 DOI: 10.1002/advs.202303872] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 08/24/2023] [Indexed: 09/05/2023]
Abstract
The lethality and chemotherapy resistance of pancreatic cancer necessitates the urgent development of innovative strategies to improve patient outcomes. To address this issue, we designed a novel drug delivery system named GDMCN2,which uses iron-based metal organic framework (Fe-MOF) nanocages encased in a covalent organic framework (COF) and modified with the pancreatic cancer-specific antibody, NRP2. After being targeted into tumor cells, GDMCN2 gradually release the sonosensitizer sinoporphyrin sodium (DVDMS) and chemotherapeutic gemcitabine (GEM) and simultaneously generated reactive oxygen species (ROS) under ultrasound (US) irradiation. This system can overcome gemcitabine resistance in pancreatic cancer and reduce its toxicity to non-targeted cells and tissues. In a mechanistic cascade, the release of ROS activates the mitochondrial transition pore (MPTP), leading to the release of Ca2+ and induction of endoplasmic reticulum (ER) stress. Therefore, microtubule-associated protein 1A/1B-light chain 3 (LC3) is activated, promoting lysosomal autophagy. This process also induces autophagy-dependent ferroptosis, aided by the upregulation of Nuclear Receptor Coactivator 4 (NCOA4). This mechanism increases the sensitivity of pancreatic cancer cells to chemotherapeutic drugs and increases mitochondrial and DNA damage. The findings demonstrate the potential of GDMCN2 nanocages as a new avenue for the development of cancer therapeutics.
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Affiliation(s)
- Zhiyu Zhao
- Cancer Research CenterSchool of MedicineXiamen UniversityXiamen361000P.R. China
| | - Yanjie Wu
- School of Science and EngineeringShenzhen Key Laboratory of Innovative Drug SynthesisThe Chinese University of Hong KongShenzhen518172P.R. China
| | - Xiaochen Liang
- Environmental ToxicologyUniversity of CaliforniaRiversideCalifornia92507USA
| | - Jiajing Liu
- Cancer Research CenterSchool of MedicineXiamen UniversityXiamen361000P.R. China
| | - Yi Luo
- School of Basic MedicineSchool of Clinical MedicineFujian Medical UniversityFuzhou350122P.R. China
| | - Yijia Zhang
- Cancer Research CenterSchool of MedicineXiamen UniversityXiamen361000P.R. China
| | - Tingting Li
- Cancer Research CenterSchool of MedicineXiamen UniversityXiamen361000P.R. China
| | - Cong Liu
- Cancer Research CenterSchool of MedicineXiamen UniversityXiamen361000P.R. China
| | - Xian Luo
- Cancer Research CenterSchool of MedicineXiamen UniversityXiamen361000P.R. China
| | - Jialin Chen
- School of Basic MedicineSchool of Clinical MedicineFujian Medical UniversityFuzhou350122P.R. China
| | - Yunjie Wang
- Cancer Research CenterSchool of MedicineXiamen UniversityXiamen361000P.R. China
| | - Shengyu Wang
- Cancer Research CenterSchool of MedicineXiamen UniversityXiamen361000P.R. China
| | - Ting Wu
- Cancer Research CenterSchool of MedicineXiamen UniversityXiamen361000P.R. China
| | - Shaoliang Zhang
- Shanghai Guangsheng Biopharmaceutical Co., LtdShanghai200120P.R. China
| | - Dong Yang
- Cancer Research CenterSchool of MedicineXiamen UniversityXiamen361000P.R. China
| | - Wengang Li
- Cancer Research CenterSchool of MedicineXiamen UniversityXiamen361000P.R. China
| | - Jianghua Yan
- Cancer Research CenterSchool of MedicineXiamen UniversityXiamen361000P.R. China
| | - Zhihai Ke
- School of Science and EngineeringShenzhen Key Laboratory of Innovative Drug SynthesisThe Chinese University of Hong KongShenzhen518172P.R. China
| | - Fanghong Luo
- Cancer Research CenterSchool of MedicineXiamen UniversityXiamen361000P.R. China
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10
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Gendron AD, Lacaze É, Taranu ZE, Gouge R, Larbi-Youcef Y, Houde M, André C, Gagné F, Triffault-Bouchet G, Giroux I. The Comet Assay, a Sensitive Biomarker of Water Quality Improvement Following Adoption of Beneficial Agricultural Practices? ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2023; 42:2201-2214. [PMID: 37417785 DOI: 10.1002/etc.5711] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/15/2023] [Accepted: 07/06/2023] [Indexed: 07/08/2023]
Abstract
Numerous actions have been undertaken by farmers to attenuate the impact of agricultural activities on aquatic ecosystems. The identification of biomarkers that respond quickly to water quality improvement could facilitate the assessment of adopted alternative practices and help maintain mobilization among stakeholders. We evaluated the potential of the comet assay, a biomarker of genotoxic effects, using a freshwater mussel, Elliptio complanata, as a model animal. The frequency of DNA damage was assessed in hemocytes of mussels collected from a pristine habitat and caged for 8 weeks in the Pot au Beurre River, a tributary of the fluvial Lake St.-Pierre (Quebec, Canada) impacted by agricultural activities. We found that the level of DNA damage naturally induced in mussel hemocytes was low and showed very limited variations over time. Compared with these baseline levels and to laboratory controls, we observed a doubling in DNA alterations in mussels exposed to agricultural runoff in the third branch of the Pot au Beurre River. The genotoxic response was significantly lower in mussels caged in the first branch of the Pot au Beurre River, where longer stretches of shoreline have been restored as buffer strips. Glyphosate, mesotrione, imazethapyr, and metolachlor were the main discriminant pesticides between these two branches. Metolachlor was found in sufficient concentrations to induce DNA damage, but it is more likely that the observed genotoxicity was the result of a "cocktail effect," that is, the cumulative contribution of coexisting genotoxicants including the above-mentioned herbicides and ingredients in their formulation. Our findings suggest that the comet assay is a sensitive tool for the early detection of changes in water toxicity following the adoption of agricultural beneficial practices. Environ Toxicol Chem 2023;42:2201-2214. © 2023 Crown copyright and The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC. This article is published with the permission of the Controller of HMSO and the King's Printer for Scotland.
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Affiliation(s)
- Andrée D Gendron
- Aquatic Contaminants Research Division, Department of Environment and Climate Change, Montreal, Quebec, Canada
| | - Émilie Lacaze
- Aquatic Contaminants Research Division, Department of Environment and Climate Change, Montreal, Quebec, Canada
| | - Zofia E Taranu
- Aquatic Contaminants Research Division, Department of Environment and Climate Change, Montreal, Quebec, Canada
| | - Rebecca Gouge
- Compliance Promotion and Marine Programs, Environmental Protection Operations, Department of Environment and Climate Change, Montreal, Quebec, Canada
| | - Yasmina Larbi-Youcef
- Direction Aménagement du Territoire et Développement Régional, Fédération de l'Union des producteurs agricoles de la Montérégie, Saint-Hyacinthe, Quebec, Canada
| | - Magali Houde
- Aquatic Contaminants Research Division, Department of Environment and Climate Change, Montreal, Quebec, Canada
| | - Chantale André
- Aquatic Contaminants Research Division, Department of Environment and Climate Change, Montreal, Quebec, Canada
| | - François Gagné
- Aquatic Contaminants Research Division, Department of Environment and Climate Change, Montreal, Quebec, Canada
| | - Gaëlle Triffault-Bouchet
- Division Écotoxicologie et Évaluation du risque, Centre d'expertise en analyse environnementale du Québec, Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs, Québec, Quebec, Canada
| | - Isabelle Giroux
- Direction générale du suivi de l'état de l'environnement, Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs, Québec, Quebec, Canada
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11
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Rodríguez R, Gaivão I, Aguado L, Espina M, García J, Martínez-Camblor P, Sierra LM. The Comet Assay in Drosophila: A Tool to Study Interactions between DNA Repair Systems in DNA Damage Responses In Vivo and Ex Vivo. Cells 2023; 12:1979. [PMID: 37566058 PMCID: PMC10417035 DOI: 10.3390/cells12151979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/26/2023] [Accepted: 07/30/2023] [Indexed: 08/12/2023] Open
Abstract
The comet assay in Drosophila has been used in the last few years to study DNA damage responses (DDR) in different repair-mutant strains and to compare them to analyze DNA repair. We have used this approach to study interactions between DNA repair pathways in vivo. Additionally, we have implemented an ex vivo comet assay, in which nucleoids from treated and untreated cells were incubated ex vivo with cell-free protein extracts from individuals with distinct repair capacities. Four strains were used: wild-type OregonK (OK), nucleotide excision repair mutant mus201, dmPolQ protein mutant mus308, and the double mutant mus201;mus308. Methyl methanesulfonate (MMS) was used as a genotoxic agent. Both approaches were performed with neuroblasts from third-instar larvae; they detected the effects of the NER and dmPolQ pathways on the DDR to MMS and that they act additively in this response. Additionally, the ex vivo approach quantified that mus201, mus308, and the double mutant mus201;mus308 strains presented, respectively, 21.5%, 52.9%, and 14.8% of OK strain activity over MMS-induced damage. Considering the homology between mammals and Drosophila in repair pathways, the detected additive effect might be extrapolated even to humans, demonstrating that Drosophila might be an excellent model to study interactions between repair pathways.
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Affiliation(s)
- Rubén Rodríguez
- Department of Functional Biology (Genetic Area), University of Oviedo, 33006 Oviedo, Spain; (R.R.)
- Oncology University Institute from Asturias (IUOPA), University of Oviedo, 33006 Oviedo, Spain
| | - Isabel Gaivão
- Department of Genetics and Biotechnology and CECAV, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal;
| | - Leticia Aguado
- Department of Functional Biology (Genetic Area), University of Oviedo, 33006 Oviedo, Spain; (R.R.)
- Oncology University Institute from Asturias (IUOPA), University of Oviedo, 33006 Oviedo, Spain
| | - Marta Espina
- Department of Functional Biology (Genetic Area), University of Oviedo, 33006 Oviedo, Spain; (R.R.)
- Oncology University Institute from Asturias (IUOPA), University of Oviedo, 33006 Oviedo, Spain
| | - Jorge García
- Department of Functional Biology (Genetic Area), University of Oviedo, 33006 Oviedo, Spain; (R.R.)
| | - Pablo Martínez-Camblor
- Department of Biomedical Data Science, Geisel Medical School at Dartmouth, Hanover, NH 03755, USA;
- Faculty of Health Sciences, Universidad Autónoma de Chile, Provedencia 7500912, Chile
| | - L. María Sierra
- Department of Functional Biology (Genetic Area), University of Oviedo, 33006 Oviedo, Spain; (R.R.)
- Oncology University Institute from Asturias (IUOPA), University of Oviedo, 33006 Oviedo, Spain
- Institute of Sanitary Research of the Principality of Asturias, Av. del Hospital Universitario, s/n, 33011 Oviedo, Spain
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12
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Louzon M, de Vaufleury A, Capelli N. Ecogenotoxicity assessment with land snails: A mini-review. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2023; 792:108472. [PMID: 37690511 DOI: 10.1016/j.mrrev.2023.108472] [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: 04/05/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/12/2023]
Abstract
In the context of the increasing environmental and sanitary crisis, it is accepted that soil pollution can cause health alterations and disturb natural population dynamics. Consequently, the assessment of the genotoxic potential of compounds found in contaminated soils is important. Indeed, the alteration of genomic integrity may increase the risk of cancer development and may impair reproduction and long-term population dynamics. Among the methodologies to assess terrestrial genotoxic potential, there has been growing interest during the last decade in monitoring alterations of the genome in bioindicators of soil quality. As some land snail species are recognized bioindicators of soil quality, especially to assess the environmental and toxicological bioavailability of compounds, this review focuses on current knowledge regarding the genotoxicology of land snails. Classical biomarkers to assess genotoxic effects have been used (e.g., DNA breakage, micronuclei, random amplification polymorphic DNA) at various stages of the life cycle, including embryos. The studies were performed in vitro, in vivo, in situ and ex situ and covered a diverse set of contaminants (nanoparticles, metal(loid)s, pesticides, polycyclic aromatic hydrocarbons) and snail species (Cantareus aspersus, Eobania vermiculata, Theba pisana, Helix lucorum). Based on recent studies reviewed here, the use of land snails to map soil genotoxic potential is promising due to their ability to reveal pollution and subsequent environmental risks. Moreover, the position of snails in the trophic chain and the existing bridges between contaminant bioavailability to snails and bioaccessibility to humans reinforce the value of land snail-based ecotoxicological assessment.
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Affiliation(s)
- Maxime Louzon
- Ecosystem department, ENVISOL, 2 rue Hector Berlioz, 38110 La Tour du Pin, France
| | - Annette de Vaufleury
- UMR CNRS 6249 Chrono-Environnement, University of Franche-Comté, 16 route de Gray, 25030 Besançon Cedex, France
| | - Nicolas Capelli
- UMR CNRS 6249 Chrono-Environnement, University of Franche-Comté, 16 route de Gray, 25030 Besançon Cedex, France.
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13
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Møller P, Roursgaard M. Exposure to nanoplastic particles and DNA damage in mammalian cells. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2023; 792:108468. [PMID: 37666295 DOI: 10.1016/j.mrrev.2023.108468] [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: 05/12/2023] [Revised: 08/30/2023] [Accepted: 08/30/2023] [Indexed: 09/06/2023]
Abstract
There is concern about human exposure to nanoplastics from intentional use or degradation of plastics in the environment. This review assesses genotoxic effects of nanoplastics, defined as particles with a primary size of less than 1000 nm. The majority of results on genotoxicity come from studies on polystyrene (PS) particles in mammalian cell cultures. Most studies have measured DNA strand breaks (standard comet assay), oxidatively damaged DNA (Fpg-modified comet assay) and micronuclei. Twenty-nine out of 60 results have shown statistically significant genotoxic effects by PS exposure in cell cultures. A statistical analysis indicates that especially modified PS particles are genotoxic (odds ratio = 8.6, 95 % CI: 1.6, 46) and immune cells seems to be more sensitive to genotoxicity than other cell types such as epithelial cells (odds ratio = 8.0, 95 % CI: 1.6, 39). On the contrary, there is not a clear association between statistically significant effects in genotoxicity tests and the primary size of PS particles, (i.e. smaller versus larger than 100 nm) or between the type of genotoxic endpoint (i.e. repairable versus permanent DNA lesions). Three studies of PS particle exposure in animals have shown increased level of DNA strand breaks in leukocytes and prefrontal cortex cells. Nanoplastics from polyethylene, propylene, polyvinyl chloride and polyethylene terephthalate have been investigated in very few studies and it is currently not possible to draw conclusion about their genotoxic hazard. In summary, there is some evidence suggesting that PS particles may be genotoxic in mammalian cells.
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Affiliation(s)
- Peter Møller
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade 5A, DK-1014 Copenhagen K, Denmark.
| | - Martin Roursgaard
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade 5A, DK-1014 Copenhagen K, Denmark
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14
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Domínguez-Oliva A, Hernández-Ávalos I, Martínez-Burnes J, Olmos-Hernández A, Verduzco-Mendoza A, Mota-Rojas D. The Importance of Animal Models in Biomedical Research: Current Insights and Applications. Animals (Basel) 2023; 13:ani13071223. [PMID: 37048478 PMCID: PMC10093480 DOI: 10.3390/ani13071223] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/19/2023] [Accepted: 03/30/2023] [Indexed: 04/03/2023] Open
Abstract
Animal research is considered a key element in advance of biomedical science. Although its use is controversial and raises ethical challenges, the contribution of animal models in medicine is essential for understanding the physiopathology and novel treatment alternatives for several animal and human diseases. Current pandemics’ pathology, such as the 2019 Coronavirus disease, has been studied in primate, rodent, and porcine models to recognize infection routes and develop therapeutic protocols. Worldwide issues such as diabetes, obesity, neurological disorders, pain, rehabilitation medicine, and surgical techniques require studying the process in different animal species before testing them on humans. Due to their relevance, this article aims to discuss the importance of animal models in diverse lines of biomedical research by analyzing the contributions of the various species utilized in science over the past five years about key topics concerning human and animal health.
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Affiliation(s)
- Adriana Domínguez-Oliva
- Master’s Program in Agricultural and Livestock Sciences [Maestría en Ciencias Agropecuarias], Xochimilco Campus, Universidad Autónoma Metropolitana (UAM), Mexico City 04960, Mexico
| | - Ismael Hernández-Ávalos
- Clinical Pharmacology and Veterinary Anesthesia, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México (UNAM), Cuautitlán 54714, Mexico
| | - Julio Martínez-Burnes
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Tamaulipas, Victoria City 87000, Mexico
| | - Adriana Olmos-Hernández
- Division of Biotechnology—Bioterio and Experimental Surgery, Instituto Nacional de Rehabilitación-Luis, Guillermo Ibarra Ibarra (INR-LGII), Mexico City 14389, Mexico
| | - Antonio Verduzco-Mendoza
- Division of Biotechnology—Bioterio and Experimental Surgery, Instituto Nacional de Rehabilitación-Luis, Guillermo Ibarra Ibarra (INR-LGII), Mexico City 14389, Mexico
| | - Daniel Mota-Rojas
- Neurophysiology, Behavior and Animal Welfare Assessment, DPAA, Universidad Autónoma Metropolitana (UAM), Mexico City 04960, Mexico
- Correspondence:
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15
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Goldoni A, Pacheco MR, da Silva LB. Comet assay in Aegla platensis (Decapoda: Anomura) using a non-lethal hemolymph field sampling for in situ monitoring of freshwater genotoxicity. ECOTOXICOLOGY (LONDON, ENGLAND) 2023; 32:160-165. [PMID: 36680665 DOI: 10.1007/s10646-023-02627-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
This study aimed to apply the comet assay on Aegla platensis crabs as a suitable non-destructive approach for in situ monitoring of freshwater genotoxicity. Animals were captured during four sampling periods in a stream under minor anthropogenic impacts in Southern Brazil. Crabs were captured with a hand net, then the hemolymph samples were collected, and the animals were released into the stream after a 20-min recovery time. Hemolymph samples were transported to the laboratory and used to perform the alkaline comet assay. Results showed an intermediate level in the DNA damage index (range 107.3-165.0 arbitrary unit). No significant differences were observed among the different sampling periods. Hemolymph was successfully used as a non-lethal source of biological samples, and the comet assay using A. platensis proved to be a feasible approach for genotoxicity studies.
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Affiliation(s)
- Angélica Goldoni
- Feevale University, ERS-239, 2755, Novo Hamburgo, Rio Grande do Sul, Brazil
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16
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Macrì M, Gea M, Piccini I, Dessì L, Santovito A, Bonelli S, Schilirò T, Bonetta S. Cabbage butterfly as bioindicator species to investigate the genotoxic effects of PM 10. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:45285-45294. [PMID: 36705823 DOI: 10.1007/s11356-023-25510-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
Atmospheric pollution poses a serious threat to environment and human health, and particulate matter (PM) is one of the major contributors. Biological effects induced by PM are investigated through in vitro assays using cells and by in vivo tests with laboratory model animals. However, also the estimation of adverse effects of pollutants, including airborne ones, on wild animals, such as insects, is an essential component of environmental risk assessment. Among insects, butterflies are sensitive to environmental changes and are important wild pollinators, so they might be suitable as environmental bioindicator species. The aim of this study was to evaluate the suitability of a wild cabbage butterfly species (Pieris brassicae) as a bioindicator organism to assess the genotoxic effects of PM10 collected in different sites. PM10 was collected from April to September in urban, suburban, and rural sites. P. brassicae larvae were reared in laboratory under controlled conditions on cabbage plants and exposed to PM10 organic extracts or dimethyl sulfoxide (controls) through vaporization. After exposure, larvae were dissected, and cells were used for comet assay. All PM extracts induced significant DNA damage in exposed larvae compared to controls and the extract collected in the most polluted site caused the highest genotoxic effect. In conclusion, the study suggested that butterflies, such as P. brassicae, could be applied as sensitive and promising bioindicators to investigate air quality and PM genotoxicity. Indeed, the use of these organisms allows the detection of genotoxic effects induced by PM sampled also in low-polluted areas.
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Affiliation(s)
- Manuela Macrì
- Department of Life Sciences and Systems Biology, University of Torino, Via Accademia Albertina 13, 10123, Torino, Italy
| | - Marta Gea
- Department of Public Health and Pediatrics, University of Torino, Via Santena 5 Bis, 10126, Torino, Italy
| | - Irene Piccini
- Department of Life Sciences and Systems Biology, University of Torino, Via Accademia Albertina 13, 10123, Torino, Italy
| | - Luca Dessì
- Department of Life Sciences and Systems Biology, University of Torino, Via Accademia Albertina 13, 10123, Torino, Italy
| | - Alfredo Santovito
- Department of Life Sciences and Systems Biology, University of Torino, Via Accademia Albertina 13, 10123, Torino, Italy
| | - Simona Bonelli
- Department of Life Sciences and Systems Biology, University of Torino, Via Accademia Albertina 13, 10123, Torino, Italy
| | - Tiziana Schilirò
- Department of Public Health and Pediatrics, University of Torino, Via Santena 5 Bis, 10126, Torino, Italy
| | - Sara Bonetta
- Department of Public Health and Pediatrics, University of Torino, Via Santena 5 Bis, 10126, Torino, Italy.
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17
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Measuring DNA modifications with the comet assay: a compendium of protocols. Nat Protoc 2023; 18:929-989. [PMID: 36707722 DOI: 10.1038/s41596-022-00754-y] [Citation(s) in RCA: 90] [Impact Index Per Article: 90.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 07/05/2022] [Indexed: 01/28/2023]
Abstract
The comet assay is a versatile method to detect nuclear DNA damage in individual eukaryotic cells, from yeast to human. The types of damage detected encompass DNA strand breaks and alkali-labile sites (e.g., apurinic/apyrimidinic sites), alkylated and oxidized nucleobases, DNA-DNA crosslinks, UV-induced cyclobutane pyrimidine dimers and some chemically induced DNA adducts. Depending on the specimen type, there are important modifications to the comet assay protocol to avoid the formation of additional DNA damage during the processing of samples and to ensure sufficient sensitivity to detect differences in damage levels between sample groups. Various applications of the comet assay have been validated by research groups in academia, industry and regulatory agencies, and its strengths are highlighted by the adoption of the comet assay as an in vivo test for genotoxicity in animal organs by the Organisation for Economic Co-operation and Development. The present document includes a series of consensus protocols that describe the application of the comet assay to a wide variety of cell types, species and types of DNA damage, thereby demonstrating its versatility.
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18
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Guidi P, Bernardeschi M, Palumbo M, Buttino I, Vitiello V, Scarcelli V, Chiaretti G, Fiorati A, Pellegrini D, Pontorno L, Bonciani L, Punta C, Corsi I, Frenzilli G. Eco-Friendly Engineered Nanomaterials Coupled with Filtering Fine-Mesh Net as a Promising Tool to Remediate Contaminated Freshwater Sludges: An Ecotoxicity Investigation. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:396. [PMID: 36770355 PMCID: PMC9920148 DOI: 10.3390/nano13030396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
The use of eco-friendly engineered nanomaterials represents a recent solution for an effective and safe treatment of contaminated dredging sludge. In this study, an eco-designed engineered material based on cross-linked nanocellulose (CNS) was applied for the first time to decontaminate a real matrix from heavy metals (namely Zn, Ni, Cu, and Fe) and other undesired elements (mainly Ba and As) in a lab-scale study, with the aim to design a safe solution for the remediation of contaminated matrices. Contaminated freshwater sludge was treated with CNS coupled with a filtering fine-mesh net, and the obtained waters were tested for acute and sublethal toxicity. In order to check the safety of the proposed treatment system, toxicity tests were conducted by exposing the bacterium Aliivibrio fischeri and the crustacean Heterocypris incongruens, while subtoxicity biomarkers such as lysosomal membrane stability, genetic, and chromosomal damage assessment were performed on the freshwater bivalve Dreissena polymorpha. Dredging sludge was found to be genotoxic, and such genotoxicity was mitigated by the combined use of CNS and a filtering fine-mesh net. Chemical analyses confirmed the results by highlighting the abetment of target contaminants, indicating the present model as a promising tool in freshwater sludge nanoremediation.
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Affiliation(s)
- Patrizia Guidi
- Department of Clinical and Experimental Medicine, Section of Applied Biology and Genetics, and INSTM Local Unit, University of Pisa, 56126 Pisa, Italy
| | - Margherita Bernardeschi
- Department of Clinical and Experimental Medicine, Section of Applied Biology and Genetics, and INSTM Local Unit, University of Pisa, 56126 Pisa, Italy
| | - Mara Palumbo
- Department of Clinical and Experimental Medicine, Section of Applied Biology and Genetics, and INSTM Local Unit, University of Pisa, 56126 Pisa, Italy
| | - Isabella Buttino
- Italian Institute for Environmental Protection and Research (ISPRA), Via del Cedro, 38, 57123 Livorno, Italy
| | - Valentina Vitiello
- Italian Institute for Environmental Protection and Research (ISPRA), Via del Cedro, 38, 57123 Livorno, Italy
| | - Vittoria Scarcelli
- Department of Clinical and Experimental Medicine, Section of Applied Biology and Genetics, and INSTM Local Unit, University of Pisa, 56126 Pisa, Italy
| | - Gianluca Chiaretti
- Italian Institute for Environmental Protection and Research (ISPRA), Via del Cedro, 38, 57123 Livorno, Italy
| | - Andrea Fiorati
- Department of Chemistry, Materials, and Chemical Engineering “G. Natta”, and INSTM Local Unit, Politecnico di Milano, 20131 Milano, Italy
| | - David Pellegrini
- Italian Institute for Environmental Protection and Research (ISPRA), Via del Cedro, 38, 57123 Livorno, Italy
| | - Lorenzo Pontorno
- Biochemie Lab. S.r.l, Via di Limite 27G, 50013 Campi Bisenzio, Italy
| | - Lisa Bonciani
- Biochemie Lab. S.r.l, Via di Limite 27G, 50013 Campi Bisenzio, Italy
| | - Carlo Punta
- Department of Chemistry, Materials, and Chemical Engineering “G. Natta”, and INSTM Local Unit, Politecnico di Milano, 20131 Milano, Italy
| | - Ilaria Corsi
- Department of Physical, Earth and Environmental Sciences, and INSTM Local Unit, University of Siena, 53100 Siena, Italy
| | - Giada Frenzilli
- Department of Clinical and Experimental Medicine, Section of Applied Biology and Genetics, and INSTM Local Unit, University of Pisa, 56126 Pisa, Italy
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Abstract
The comet assay is an effective method for identifying DNA breaks and alkali-labile sites induced by genotoxins. Performed as a single-cell electrophoresis, this assay is especially simplistic, and the results are easily reproducible. DNA breakage can be quantitatively assessed by the induced comet tail regions, which can be measured using a variety of comet software. This protocol will finish within approximately two hours with adequate preparation, and digitized images can be taken using a confocal or standard fluorescence microscopes after staining the cell nucleus with a DNA dye.
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Affiliation(s)
- Kade D Walsh
- Department of Environmental & Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA
| | - Takamitsu A Kato
- Department of Environmental & Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA.
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20
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Dos Santos A, Botelho MT, Vannuci-Silva M, Artal MC, Vacchi FI, Magalhães GR, Gomes V, Henry TB, Umbuzeiro GDA. The amphipod Parhyale hawaiensis as a promising model in ecotoxicology. CHEMOSPHERE 2022; 307:135959. [PMID: 35944683 DOI: 10.1016/j.chemosphere.2022.135959] [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: 04/12/2022] [Revised: 07/14/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
Near-shore marine/estuarine environments play an important role in the functioning of the marine ecosystem and are extremely vulnerable to the presence of chemical pollution. The ability to investigate the effects of pollution is limited by a lack of model organisms for which sufficient ecotoxicological information is available, and this is particularly true for tropical regions. The circumtropical marine amphipod Parhyale hawaiensis has become an important model organism in various disciplines, and here we summarize the scientific literature regarding the emergence of this model within ecotoxicology. P. hawaiensis is easily cultured in the laboratory and standardized ecotoxicity protocols have been developed and refined (e.g., miniaturized), and effects of toxicants on acute toxicity (Cd, Cu, Zn, Ag, ammonia, dyes, pesticides, environmental samples), genotoxicity as comet assay/micronuclei, and gene expression (Ag ion and Ag nanoparticles) and regeneration (pesticides) have been published. Methods for determination of internal concentrations of metals (Cu and Ag) and organic substances (synthetic dye) in hemolymph were successfully developed providing sources for the establishment of toxicokinetics models in aquatic amphipods. Protocols to evaluate reproduction and growth, for testing immune responses and DNA damage in germ cells are under way. The sensitivity of P. hawaiensis, measured as 50% lethal concentration (LC50), is in the same range as other amphipods. The combination of feasibility to culture P. hawaiensis in laboratory, the recent protocols for ecotoxicity evaluation and the rapidly expanding knowledge on its biology make it especially attractive as a model organism and promising tool for risk assessment evaluations in tropical environments.
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Affiliation(s)
- Amanda Dos Santos
- School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil; School of Technology, University of Campinas, Limeira, SP, Brazil
| | | | | | | | - Francine I Vacchi
- School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil; School of Technology, University of Campinas, Limeira, SP, Brazil; Institute of Biology, University of Campinas, Campinas, SP, Brazil
| | | | - Vicente Gomes
- Oceanographic Institute, University of São Paulo, São Paulo, SP, Brazil
| | - Theodore Burdick Henry
- Institute of Life and Earth Sciences, School of Energy, Geoscience, Infrastructure, and Society, Heriot-Watt University, Edinburgh, Scotland, UK; Department of Forestry Wildlife and Fisheries, and Center for Environmental Biotechnology, The University of Tennessee, Knoxville, TN, USA
| | - Gisela de Aragão Umbuzeiro
- School of Technology, University of Campinas, Limeira, SP, Brazil; Institute of Biology, University of Campinas, Campinas, SP, Brazil.
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21
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Smodlaka Tanković M, Baričević A, Gerić M, Domijan AM, Pfannkuchen DM, Kužat N, Ujević I, Kuralić M, Rožman M, Matković K, Novak M, Žegura B, Pfannkuchen M, Gajski G. Characterisation and toxicological activity of three different Pseudo-nitzschia species from the northern Adriatic Sea (Croatia). ENVIRONMENTAL RESEARCH 2022; 214:114108. [PMID: 35985485 DOI: 10.1016/j.envres.2022.114108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/28/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
Diatoms of the genus Pseudo-nitzschia are cosmopolitans spread in seas and oceans worldwide, with more than 50 described species, dozens of which have been confirmed to produce domoic acid (DA). Here, we characterized and investigated the toxicological activity of secondary metabolites excreted into the growth media of different Pseudo-nitzschia species sampled at various locations in the northern Adriatic Sea (Croatia) using human blood cells under in vitro conditions. The results revealed that three investigated species of the genus Pseudo-nitzschia were capable of producing DA indicating their toxic potential. Moreover, toxicological data suggested all three Pseudo-nitzschia species can excrete toxic secondary metabolites into the surrounding media in addition to the intracellular pools of DA, raising concerns regarding their toxicity and environmental impact. In addition, all three Pseudo-nitzchia species triggered oxidative stress, one of the mechanisms of action likely responsible for the DNA damage observed in human blood cells. In line with the above stated, our results are of great interest to environmental toxicologists, the public and policy makers, especially in light of today's climate change, which favours harmful algal blooms and the growth of DA producers with a presumed negative impact on the public health of coastal residents.
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Affiliation(s)
| | - Ana Baričević
- Center for Marine Research, Ruđer Bošković Institute, 52210 Rovinj, Croatia
| | - Marko Gerić
- Mutagenesis Unit, Institute for Medical Research and Occupational Health, 10000 Zagreb, Croatia
| | - Ana-Marija Domijan
- Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia
| | | | - Nataša Kužat
- Center for Marine Research, Ruđer Bošković Institute, 52210 Rovinj, Croatia
| | - Ivana Ujević
- Laboratory of Plankton and Shellfish Toxicity, Institute of Oceanography and Fisheries, 21000 Split, Croatia
| | - Melissa Kuralić
- Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia
| | - Marko Rožman
- Laboratory for Mass Spectrometry and Functional Proteomics, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Katarina Matković
- Mutagenesis Unit, Institute for Medical Research and Occupational Health, 10000 Zagreb, Croatia
| | - Matjaž Novak
- Department for Genetic Toxicology and Cancer Biology, National Institute of Biology, 1000 Ljubljana, Slovenia
| | - Bojana Žegura
- Department for Genetic Toxicology and Cancer Biology, National Institute of Biology, 1000 Ljubljana, Slovenia
| | - Martin Pfannkuchen
- Center for Marine Research, Ruđer Bošković Institute, 52210 Rovinj, Croatia
| | - Goran Gajski
- Mutagenesis Unit, Institute for Medical Research and Occupational Health, 10000 Zagreb, Croatia.
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22
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El Yamani N, Rundén-Pran E, Collins AR, Longhin EM, Elje E, Hoet P, Vinković Vrček I, Doak SH, Fessard V, Dusinska M. The miniaturized enzyme-modified comet assay for genotoxicity testing of nanomaterials. FRONTIERS IN TOXICOLOGY 2022; 4:986318. [PMID: 36310692 PMCID: PMC9597874 DOI: 10.3389/ftox.2022.986318] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 09/20/2022] [Indexed: 11/10/2022] Open
Abstract
The in vitro comet assay is a widely applied method for investigating genotoxicity of chemicals including engineered nanomaterials (NMs). A big challenge in hazard assessment of NMs is possible interference between the NMs and reagents or read-out of the test assay, leading to a risk of biased results. Here, we describe both the standard alkaline version of the in vitro comet assay with 12 mini-gels per slide for detection of DNA strand breaks and the enzyme-modified version that allows detection of oxidized DNA bases by applying lesion-specific endonucleases (e.g., formamidopyrimidine DNA glycosylase or endonuclease III). We highlight critical points that need to be taken into consideration when assessing the genotoxicity of NMs, as well as basic methodological considerations, such as the importance of carrying out physicochemical characterization of the NMs and investigating uptake and cytotoxicity. Also, experimental design-including treatment conditions, cell number, cell culture, format and volume of medium on the plate-is crucial and can have an impact on the results, especially when testing NMs. Toxicity of NMs depends upon physicochemical properties that change depending on the environment. To facilitate testing of numerous NMs with distinct modifications, the higher throughput miniaturized version of the comet assay is essential.
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Affiliation(s)
- N. El Yamani
- Health Effects Laboratory, Department for Environmental Chemistry, NILU—Norwegian Institute for Air Research, Kjeller, Norway,*Correspondence: N. El Yamani,
| | - E. Rundén-Pran
- Health Effects Laboratory, Department for Environmental Chemistry, NILU—Norwegian Institute for Air Research, Kjeller, Norway
| | - A. R. Collins
- Comet Biotech AS, Department of Nutrition, University of Oslo, Oslo, Norway
| | - E. M. Longhin
- Health Effects Laboratory, Department for Environmental Chemistry, NILU—Norwegian Institute for Air Research, Kjeller, Norway
| | - E. Elje
- Health Effects Laboratory, Department for Environmental Chemistry, NILU—Norwegian Institute for Air Research, Kjeller, Norway
| | - P. Hoet
- Laboratory of Toxicology, Unit of Environment and Health, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
| | - I. Vinković Vrček
- Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | - S. H. Doak
- In Vitro Toxicology Group, Institute of Life Science, Swansea University Medical School, Swansea, United Kingdom
| | - V. Fessard
- Toxicology of Contaminants Unit, Fougères Laboratory, French Agency for Food, Environmental and Occupational Health and Safety, Fougères, France
| | - M. Dusinska
- Health Effects Laboratory, Department for Environmental Chemistry, NILU—Norwegian Institute for Air Research, Kjeller, Norway
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23
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Genotoxic effects of silver nanoparticles on a tropical marine amphipod via feeding exposure. MUTATION RESEARCH/GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2022; 881:503527. [DOI: 10.1016/j.mrgentox.2022.503527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 06/28/2022] [Accepted: 07/07/2022] [Indexed: 11/23/2022]
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24
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Roursgaard M, Hezareh Rothmann M, Schulte J, Karadimou I, Marinelli E, Møller P. Genotoxicity of Particles From Grinded Plastic Items in Caco-2 and HepG2 Cells. Front Public Health 2022; 10:906430. [PMID: 35875006 PMCID: PMC9298925 DOI: 10.3389/fpubh.2022.906430] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 06/10/2022] [Indexed: 12/02/2022] Open
Abstract
Large plastic litters degrade in the environment to micro- and nanoplastics, which may then enter the food chain and lead to human exposure by ingestion. The present study explored ways to obtain nanoplastic particles from real-life food containers. The first set of experiments gave rise to polypropylene nanoplastic suspensions with a hydrodynamic particle size range between 100 and 600 nm, whereas the same grinding process of polyethylene terephthalate (PET) produced suspensions of particles with a primary size between 100 and 300 nm. The exposure did not cause cytotoxicity measured by the lactate dehydrogenase (LDH) and water soluble tetrazolium 1 (WST-1) assays in Caco-2 and HepG2 cells. Nanoplastics of transparent PET food containers produced a modest concentration-dependent increase in DNA strand breaks, measured by the alkaline comet assay [net induction of 0.28 lesions/106 bp at the highest concentration (95% CI: 0.04; 0.51 lesions/106 base pair)]. The exposure to nanoplastics from transparent polypropylene food containers was also positively associated with DNA strand breaks [i.e., net induction of 0.10 lesions/106 base pair (95% CI: −0.04; 0.23 lesions/106 base pair)] at the highest concentration. Nanoplastics from grinding of black colored PET food containers demonstrated no effect on HepG2 and Caco-2 cells in terms of cytotoxicity, reactive oxygen species production or changes in cell cycle distribution. The net induction of DNA strand breaks was 0.43 lesions/106 bp (95% CI: 0.09; 0.78 lesions/106 bp) at the highest concentration of nanoplastics from black PET food containers. Collectively, the results indicate that exposure to nanoplastics from real-life consumer products can cause genotoxicity in cell cultures.
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Affiliation(s)
- Martin Roursgaard
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Monika Hezareh Rothmann
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Juliane Schulte
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Ioanna Karadimou
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Elena Marinelli
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Peter Møller
- Section of Environmental Health, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
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25
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He F, Yu H, Shi H, Li X, Chu S, Huo C, Liu R. Behavioral, histopathological, genetic, and organism-wide responses to phenanthrene-induced oxidative stress in Eisenia fetida earthworms in natural soil microcosms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:40012-40028. [PMID: 35113383 DOI: 10.1007/s11356-022-18990-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
Phenanthrene (PHE) contamination not only changes the quality of soil environment but also threatens to the soil organisms. There is lack of focus on the eco-toxicity potential of this contaminant in real soil in the current investigation. Here, we assessed the toxic effects of PHE on earthworms (Eisenia fetida) in natural soil matrix. PHE exhibited a relatively high toxicity to E. fetida in natural soil, with the LC50 determined to be 56.68 mg kg-1 after a 14-day exposure. Excessive ROS induced by PHE, leading to oxidative damage to biomacromolecules in E. fetida, including lipid peroxidation, protein carbonylation, and DNA damage. The antioxidant defense system (total antioxidant capacity, glutathione S-transferase, peroxidase, catalase, carboxylesterase, and superoxide dismutase) in E. fetida responded quickly to scavenge excess ROS and free radicals. Exposure to PHE resulted in earthworm avoidance responses (2.5 mg kg-1) and habitat function loss (10 mg kg-1). Histological observations indicated that the intestine, body wall, and seminal vesicle in E. fetida were severely damaged after exposure to high-dose PHE. Moreover, earthworm growth (weight change) and reproduction (cocoon production and the number of juvenile) were also inhibited after exposure to this pollutant. Furthermore, the integrated toxicity of PHE toward E. fetida at different doses and exposure times was assessed by the integrated biomarker response (IBR), which confirmed that PHE is more toxic to earthworms in the high-dose and long-term exposure groups. Our results showed that PHE exposure induced oxidative stress, disturbed antioxidant defense system, and caused oxidative damage in E. fetida. These effects can trigger behavior changes and damage histological structure, finally cause growth inhibition, genotoxicity, and reproductive toxicity in earthworms. The strength of this study is the comprehensive toxicity evaluation of PHE to earthworms and highlights the need to investigate the eco-toxicity potential of exogenous environmental pollutants in a real soil environment.
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Affiliation(s)
- Falin He
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, People's Republic of China
| | - Hanmei Yu
- Yanzhou District Branch of Jining Ecological Environment Bureau, No. 159, Wenhua East Road , Yanzhou District, Jining City, Shandong Province, 272100, People's Republic of China
| | - Huijian Shi
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, People's Republic of China
| | - Xiangxiang Li
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, People's Republic of China
| | - Shanshan Chu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, People's Republic of China
| | - Chengqian Huo
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, People's Republic of China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong, 266237, People's Republic of China.
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26
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Sargsyan A, Hovhannisyan G, Simonyan A, Arakelyan M, Arzumanyan M, Aroutiounian R. Application of land snail Helix lucorum for evaluation of genotoxicity of soil pollution. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2022; 878:503500. [PMID: 35649673 DOI: 10.1016/j.mrgentox.2022.503500] [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: 07/03/2021] [Revised: 04/15/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
Application of native species as sentinels allows environmental scientists to determine real genotoxic impact of environmental pollutants. The present study aims at investigating the DNA damage in the land snail Helix lucorum as a biomarker of soil pollution. For this reason, the genotoxic impact of contaminated soil on H. lucorum, collected from different polluted areas, was investigated using the comet assay in haemocytes and digestive gland cells. An increase in DNA damage was found in the snails sampled from polluted sites compared with the reference one. Strong correlations between DNA damage in haemocytes and digestive gland cells with the level of contamination indicate pollution-induced genotoxic effects in both tissues. At the same time, the digestive gland was more sensitive towards pollutants compared with haemolymph. A direct relationship between concentrations of Cu, As and Mo in soil and the number of damaged cells for hаemolymph and digestive gland tissue was found. However, the data obtained reflect the total genotoxicity of all pollutants in the studied areas. Significant correlations between the DNA damage measured by the comet assay and metal contents in soil indicate that it is a suitable biomarker in ecotoxicological studies. Our results indicate the effectiveness of H. lucorum in biomonitoring of environmental pollution.
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Affiliation(s)
- Anzhela Sargsyan
- Department of Genetics and Cytology, Yerevan State University, 8 Charents Str., P.O. Box 0025, Yerevan, Armenia.
| | - Galina Hovhannisyan
- Department of Genetics and Cytology, Yerevan State University, 8 Charents Str., P.O. Box 0025, Yerevan, Armenia; Laboratory of General and Molecular Genetics, RI "Biology", Faculty of Biology Yerevan State University, 8 Charents Str., P.O. Box 0025, Yerevan, Armenia.
| | - Anna Simonyan
- A.V. Dumansky Institute of Colloid Chemistry and Water Chemistry of the National Academy of Sciences of Ukraine, 42 Vernadsky Avenue, P.O. Box 03142, Kyiv, Ukraine.
| | - Marine Arakelyan
- Department of Zoology, Yerevan State University, 8 Charents Str., P.O. Box 0025, Yerevan, Armenia.
| | - Meri Arzumanyan
- Department of Zoology, Yerevan State University, 8 Charents Str., P.O. Box 0025, Yerevan, Armenia.
| | - Rouben Aroutiounian
- Department of Genetics and Cytology, Yerevan State University, 8 Charents Str., P.O. Box 0025, Yerevan, Armenia; Laboratory of General and Molecular Genetics, RI "Biology", Faculty of Biology Yerevan State University, 8 Charents Str., P.O. Box 0025, Yerevan, Armenia.
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27
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Alvarez-Moya C, Sámano-León AG, Reynoso-Silva M, Ramírez-Velasco R, Ruiz-López MA, Villalobos-Arámbula AR. Antigenotoxic Effect of Ascorbic Acid and Resveratrol in Erythrocytes of Ambystoma mexicanum, Oreochromis niloticus and Human Lymphocytes Exposed to Glyphosate. Curr Issues Mol Biol 2022; 44:2230-2242. [PMID: 35678680 PMCID: PMC9164025 DOI: 10.3390/cimb44050151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 05/01/2022] [Accepted: 05/06/2022] [Indexed: 11/16/2022] Open
Abstract
Glyphosate is a controversial herbicide. Its genotoxicity and presence in various ecosystems have been reported. The use of ascorbic acid and resveratrol could protect different organisms from glyphosate-induced genetic damage. In the present study, specific genetic damage induced by glyphosate was evaluated in erythrocytes of Oreochromis niloticus, Ambystoma mexicanum and human lymphocytes. Simultaneously, the antigenotoxic capacity of various concentrations of ascorbic acid and resveratrol was evaluated by means of pretreatment and simultaneous treatment protocols. The 0.03, 0.05 and 0.07 mM concentrations of glyphosate induced significant genotoxic activity (p < 0.05) in human lymphocytes and in erythrocytes of the species studied, and could cause genomic instability in these populations. The reduction in genetic damage observed in human lymphocytes exposed to high concentrations of glyphosate is only apparent: excessive genetic damage was associated with undetectable excessive tail migration length. A significant (p < 0.05) antigenotoxic effect of ascorbic acid and resveratrol was observed in all concentrations, organisms and protocols used. Both ascorbic acid and resveratrol play an important role in maintaining the integrity of DNA. Ascorbic acid in Oreochromis niloticus, Ambystoma mexicanum reduced glyphosate-induced genetic damage to a basal level. Therefore, our data indicate that these antioxidants could help preserve the integrity of the DNA of organisms exposed to glyphosate. The consumption of antioxidants is a useful tool against the genotoxicity of glyphosate.
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Affiliation(s)
- Carlos Alvarez-Moya
- Environmental Mutagenesis Laboratory, Cellular and Molecular Department, University of Guadalajara, Guadalajara 45200, Jalisco, Mexico; (A.G.S.-L.); (R.R.-V.)
- Correspondence: (C.A.-M.); (M.R.-S.); Tel.: +52-377-77-1121 (C.A.-M.); +52-333-777-1121 (M.R.-S.)
| | - Alexis Gerardo Sámano-León
- Environmental Mutagenesis Laboratory, Cellular and Molecular Department, University of Guadalajara, Guadalajara 45200, Jalisco, Mexico; (A.G.S.-L.); (R.R.-V.)
| | - Mónica Reynoso-Silva
- Environmental Mutagenesis Laboratory, Cellular and Molecular Department, University of Guadalajara, Guadalajara 45200, Jalisco, Mexico; (A.G.S.-L.); (R.R.-V.)
- Correspondence: (C.A.-M.); (M.R.-S.); Tel.: +52-377-77-1121 (C.A.-M.); +52-333-777-1121 (M.R.-S.)
| | - Rafael Ramírez-Velasco
- Environmental Mutagenesis Laboratory, Cellular and Molecular Department, University of Guadalajara, Guadalajara 45200, Jalisco, Mexico; (A.G.S.-L.); (R.R.-V.)
| | - Mario Alberto Ruiz-López
- Biotechnology Laboratory, Department of Botany and Zoology, University of Guadalajara, Guadalajara 45200, Jalisco, Mexico;
| | - Alma Rosa Villalobos-Arámbula
- Molecular and Functional Genetics and Ecosystems Laboratory of Biomarkers and Molecular Genetics, Cellular and Molecular Departament, University of Guadalajara, Guadalajara 45200, Jalisco, Mexico;
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Breljak D, Micek V, Gerić M, Gajski G, Oguić SK, Rašić D, Karaica D, Madunić IV, Ljubojević M, Orct T, Jurasović J, Jovanović IN, Peraica M, Nanić L, Rubelj I, Sabolić I. Long-term effects of melatonin and resveratrol on aging rats: A multi-biomarker approach. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2022; 876-877:503443. [PMID: 35483776 DOI: 10.1016/j.mrgentox.2022.503443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 09/28/2021] [Accepted: 01/10/2022] [Indexed: 12/21/2022]
Abstract
Aging-related impaired body structure and functions may be, at least partially, caused by elevated oxidative stress. Melatonin (MEL) and resveratrol (RSV) may act as antioxidant and anti-aging compounds, but these actions in experimental animals and humans are controversial. Herein, a rat model of aging was used to study the long-term sex-related effects of MEL and RSV treatment on body mass and blood/plasma parameters of DNA damage, oxidative status (glutathione and malondialdehyde levels), and concentrations of sex hormones. Starting from the age of 3mo, for the next 9mo or 21mo male and female Wistar rats (n = 4-7 per group) were given water to drink (controls) or 0.1 % ethanol in water (vehicle), or MEL or RSV (each 10 mg/L vehicle). DNA damage in whole blood cells was tested by comet assay, whereas in plasma, glutathione, malondialdehyde, and sex hormones were determined by established methods. Using statistical analysis of data by ANOVA/Scheffe post hoc, we observed a similar sex- and aging-dependent rise of body mass in both sexes and drop of plasma testosterone in control and vehicle-treated male rats, whose pattern remained unaffected by MEL and RSV treatment. Compared with controls, all other parameters remained largely unchanged in aging and differently treated male and female rats. We concluded that the sex- and aging-related pattern of growth and various blood parameters in rats were not affected by the long-term treatment with MEL and RSV at the estimated daily doses (300-400 μg/kg b.m.) that exceed usual moderate consumption in humans.
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Affiliation(s)
- Davorka Breljak
- Molecular Toxicology Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000, Zagreb, Croatia.
| | - Vedran Micek
- Laboratory Animals Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000, Zagreb, Croatia
| | - Marko Gerić
- Mutagenesis Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000, Zagreb, Croatia
| | - Goran Gajski
- Mutagenesis Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000, Zagreb, Croatia
| | - Saša Kralik Oguić
- Clinical Institute of Laboratory Diagnostics, Clinical Hospital Center, Kišpatićeva 12, 10000, Zagreb, Croatia
| | - Dubravka Rašić
- Toxicology Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000, Zagreb, Croatia
| | - Dean Karaica
- Molecular Toxicology Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000, Zagreb, Croatia
| | - Ivana Vrhovac Madunić
- Molecular Toxicology Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000, Zagreb, Croatia
| | - Marija Ljubojević
- Molecular Toxicology Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000, Zagreb, Croatia
| | - Tatjana Orct
- Analytical Toxicology and Mineral Metabolism Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000, Zagreb, Croatia
| | - Jasna Jurasović
- Analytical Toxicology and Mineral Metabolism Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000, Zagreb, Croatia
| | - Ivana Novak Jovanović
- Toxicology Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000, Zagreb, Croatia
| | - Maja Peraica
- Toxicology Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000, Zagreb, Croatia
| | - Lucia Nanić
- Laboratory for Molecular and Cellular Biology, Division of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, 10000, Zagreb, Croatia
| | - Ivica Rubelj
- Laboratory for Molecular and Cellular Biology, Division of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, 10000, Zagreb, Croatia
| | - Ivan Sabolić
- Molecular Toxicology Unit, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000, Zagreb, Croatia
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El-Samad LM, El-Ashram S, Hussein HK, Abdul-Aziz KK, Radwan EH, Bakr NR, El Wakil A, Augustyniak M. Time-delayed effects of a single application of AgNPs on structure of testes and functions in Blaps polychresta Forskal, 1775 (Coleoptera: Tenebrionidae). THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150644. [PMID: 34597572 DOI: 10.1016/j.scitotenv.2021.150644] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/15/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Silver nanoparticles (AgNPs) are currently the most frequently used engineered nanoparticles. The penetration of AgNPs into ecosystems is undeniable, and their adverse effects on organism reproduction are of fundamental importance for ecosystem stability. In this study, the survival time of the Egyptian beetle Blaps polychresta Forskal, 1775 (Coleoptera: Tenebrionidae), after a single application of 7 different doses, was calculated for 30 days. Then, for the group for which the effect on mortality was calculated as LOAEL - the Lowest Observed Adverse Effect Level, namely, 0.03 mg AgNPs/g body weight (b.w.t.), the following were assessed: structure and ultrastructure of gonads by TEM and SEM, cell viability by cytometry, DNA damage by the comet assay, and a variety of stress markers by spectrophotometric methods. A dose-dependent reduction in the survival time of the insects was revealed. Detailed analysis of the testes of beetles treated with 0.03 mg AgNPs/g b.w.t. revealed numerous adverse effects of nanoparticles in structure and ultrastructure, accompanied by increased apoptosis (but not necrosis), increased DNA damage, increased lipid peroxidation, and decreased levels of antioxidant enzymes. Most likely, the observed results are connected with the gradual release of Ag+ from the surface of the nanoparticles, which, once applied, are internalized in cells and become a long-lasting, stable source of Ag+ ions. Thus, a single exposure to AgNPs may have the effects of chronic exposure and lead to structural damage and dysfunction of the gonads of B. polychresta.
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Affiliation(s)
- Lamia M El-Samad
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Saeed El-Ashram
- College of Life Science and Engineering, Foshan University, 18 Jiangwan Street, Foshan 528231, Guangdong Province, China; Faculty of Science, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt; Department of Poultry Science, University of Arkansas, Fayetteville, AR, USA
| | - Hussein K Hussein
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | | | - Eman H Radwan
- Department of Zoology, Faculty of Science, Damanhour University, Egypt
| | - Nahed R Bakr
- Department of Zoology, Faculty of Science, Damanhour University, Egypt
| | - Abeer El Wakil
- Biological and Geological Sciences Department, Faculty of Education, Alexandria University, Egypt
| | - Maria Augustyniak
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland.
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Measurement of oxidatively damaged DNA in mammalian cells using the comet assay: Reflections on validity, reliability and variability. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2022; 873:503423. [PMID: 35094807 DOI: 10.1016/j.mrgentox.2021.503423] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 10/27/2021] [Accepted: 11/03/2021] [Indexed: 11/24/2022]
Abstract
The comet assay is a simple technique for measurements of low levels of DNA damage and repair in single cells. However, there is variation in background levels of DNA damage in peripheral blood mononuclear cells (PBMCs). This variation has been documented by inter-laboratory ring-trials where identical samples have been analysed in different laboratories using the formamidopyrimidine DNA glycosylase (Fpg)-modified comet assay. The coefficient of variation of background levels of Fpg-sensitive sites was 128 % in the first inter-laboratory validation trial called European Standards Committee on Oxidative DNA Damage. The variation was reduced to 44 % by the end of the project. Subsequent ring-trials by the European Comet Assay Validation Group showed similar inter-laboratory variation in Fpg-sensitive sites in PBMCs (45 %). The lowest inter-laboratory variation in Fpg-sensitive sites in PBMCs was 12 % when using calibration to standardize comet assay descriptors. Introduction of standard comet assay procedures was surprisingly unsuccessful as certain laboratories experienced technical problems using unaccustomed assay conditions. This problem was alleviated by using flexible assay standard conditions rather than a standard protocol in a ring-trial by the hCOMET group. The approach reduced technical problems, but the inter-laboratory variation in Fpg-sensitive sites was not reduced. The ring-trials have not pinpointed specific assay steps as major determinants of the variation in DNA damage levels. It is likely that small differences in several steps cause inter-laboratory variation. Although this variation in reported DNA damage levels causes concern, ring-trials have also shown that the comet assay is a reliable tool in biomonitoring studies.
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Carere M, Antoccia A, Buschini A, Frenzilli G, Marcon F, Andreoli C, Gorbi G, Suppa A, Montalbano S, Prota V, De Battistis F, Guidi P, Bernardeschi M, Palumbo M, Scarcelli V, Colasanti M, D'Ezio V, Persichini T, Scalici M, Sgura A, Spani F, Udroiu I, Valenzuela M, Lacchetti I, di Domenico K, Cristiano W, Marra V, Ingelido AM, Iacovella N, De Felip E, Massei R, Mancini L. An integrated approach for chemical water quality assessment of an urban river stretch through Effect-Based Methods and emerging pollutants analysis with a focus on genotoxicity. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 300:113549. [PMID: 34543968 DOI: 10.1016/j.jenvman.2021.113549] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 07/04/2021] [Accepted: 08/12/2021] [Indexed: 06/13/2023]
Abstract
The impact of emerging chemical pollutants, on both status and functionality of aquatic ecosystems is worldwide recognized as a relevant issue of concern that should be assessed and managed by researchers, policymakers, and all relevant stakeholders. In Europe, the Reach Regulation has registered more than 100.000 chemical substances daily released in the environment. Furthermore, the effects related to the mixture of substances present in aquatic ecosystems may not be predictable on the basis of chemical analyses alone. This evidence, coupled with the dramatic effects of climate changes on water resources through water scarcity and flooding, makes urgent the application of innovative, fast and reliable monitoring methods. In this context, Effect-Based Methods (EBMs) have been applied in the urban stretch of the Tiber River (Central Italy) with the aim of understanding if detrimental pressures affect aquatic environmental health. In particular, different eco-genotoxicological assays have been used in order to detect genotoxic activity of chemicals present in the river, concurrently characterized by chemical analysis. Teratogenicity and embryo-toxicity have been studied in order to cover additional endpoints. The EBMs have highlighted the presence of diffuse chemical pollution and ecotoxicological effects in the three sampling stations, genotoxicological effects have been also detected through the use of different tests and organisms. The chemical analyses confirmed that in the aquatic ecosystems there is a diffuse presence, even at low concentrations, of emerging contaminants such as pharmaceuticals, not routinely monitored pesticides, personal care products, PFAS. The results of this study can help to identify an appropriate battery of EBMs for future studies and the application of more appropriate measures in order to monitor, mitigate or eliminate chemical contamination and remediate its adverse/detrimental effects on the ecosystem health.
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Affiliation(s)
- Mario Carere
- Italian Institute of Health, Department: Environment and Health, Viale Regina Elena 299, Rome, Italy.
| | - Antonio Antoccia
- Department of Science, University "Roma Tre", Viale Guglielmo Marconi 446, I-00146, Roma, Italy
| | - Annamaria Buschini
- University of Parma, Department of Chemistry, Life Sciences and Environmental Sustainability, Parco Area Delle Scienze, 11/a, 43124, Parma, Italy
| | - Giada Frenzilli
- University of Pisa, Department of Clinical and Experimental Medicine, Unit of Applied Biology and Genetics, Via A. Volta 4, Pisa, Italy
| | - Francesca Marcon
- Italian Institute of Health, Department: Environment and Health, Viale Regina Elena 299, Rome, Italy
| | - Cristina Andreoli
- Italian Institute of Health, Department: Environment and Health, Viale Regina Elena 299, Rome, Italy
| | - Gessica Gorbi
- University of Parma, Department of Chemistry, Life Sciences and Environmental Sustainability, Parco Area Delle Scienze, 11/a, 43124, Parma, Italy
| | - Antonio Suppa
- University of Parma, Department of Chemistry, Life Sciences and Environmental Sustainability, Parco Area Delle Scienze, 11/a, 43124, Parma, Italy
| | - Serena Montalbano
- University of Parma, Department of Chemistry, Life Sciences and Environmental Sustainability, Parco Area Delle Scienze, 11/a, 43124, Parma, Italy
| | - Valentina Prota
- Italian Institute of Health, Department: Environment and Health, Viale Regina Elena 299, Rome, Italy
| | - Francesca De Battistis
- Italian Institute of Health, Department: Environment and Health, Viale Regina Elena 299, Rome, Italy
| | - Patrizia Guidi
- University of Pisa, Department of Clinical and Experimental Medicine, Unit of Applied Biology and Genetics, Via A. Volta 4, Pisa, Italy
| | - Margherita Bernardeschi
- University of Pisa, Department of Clinical and Experimental Medicine, Unit of Applied Biology and Genetics, Via A. Volta 4, Pisa, Italy
| | - Mara Palumbo
- University of Pisa, Department of Clinical and Experimental Medicine, Unit of Applied Biology and Genetics, Via A. Volta 4, Pisa, Italy
| | - Vittoria Scarcelli
- University of Pisa, Department of Clinical and Experimental Medicine, Unit of Applied Biology and Genetics, Via A. Volta 4, Pisa, Italy
| | - Marco Colasanti
- Department of Science, University "Roma Tre", Viale Guglielmo Marconi 446, I-00146, Roma, Italy
| | - Veronica D'Ezio
- Department of Science, University "Roma Tre", Viale Guglielmo Marconi 446, I-00146, Roma, Italy
| | - Tiziana Persichini
- Department of Science, University "Roma Tre", Viale Guglielmo Marconi 446, I-00146, Roma, Italy
| | - Massimiliano Scalici
- Department of Science, University "Roma Tre", Viale Guglielmo Marconi 446, I-00146, Roma, Italy
| | - Antonella Sgura
- Department of Science, University "Roma Tre", Viale Guglielmo Marconi 446, I-00146, Roma, Italy
| | - Federica Spani
- Department of Science, University "Roma Tre", Viale Guglielmo Marconi 446, I-00146, Roma, Italy
| | - Ion Udroiu
- Department of Science, University "Roma Tre", Viale Guglielmo Marconi 446, I-00146, Roma, Italy
| | - Martina Valenzuela
- Department of Science, University "Roma Tre", Viale Guglielmo Marconi 446, I-00146, Roma, Italy
| | - Ines Lacchetti
- Italian Institute of Health, Department: Environment and Health, Viale Regina Elena 299, Rome, Italy
| | - Kevin di Domenico
- Italian Institute of Health, Department: Environment and Health, Viale Regina Elena 299, Rome, Italy
| | - Walter Cristiano
- Italian Institute of Health, Department: Environment and Health, Viale Regina Elena 299, Rome, Italy
| | - Valentina Marra
- Italian Institute of Health, Department: Environment and Health, Viale Regina Elena 299, Rome, Italy
| | - Anna Maria Ingelido
- Italian Institute of Health, Department: Environment and Health, Viale Regina Elena 299, Rome, Italy
| | - Nicola Iacovella
- Italian Institute of Health, Department: Environment and Health, Viale Regina Elena 299, Rome, Italy
| | - Elena De Felip
- Italian Institute of Health, Department: Environment and Health, Viale Regina Elena 299, Rome, Italy
| | - Riccardo Massei
- UFZ - Helmholtz Centre for Environmental Research, Department Bioanalytical Ecotoxicology, Permoserstr. 15, 04318, Leipzig, Germany
| | - Laura Mancini
- Italian Institute of Health, Department: Environment and Health, Viale Regina Elena 299, Rome, Italy
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Masiá P, Ardura A, García-Vázquez E. Virgin Polystyrene Microparticles Exposure Leads to Changes in Gills DNA and Physical Condition in the Mediterranean Mussel Mytilus Galloprovincialis. Animals (Basel) 2021; 11:ani11082317. [PMID: 34438773 PMCID: PMC8388471 DOI: 10.3390/ani11082317] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 07/29/2021] [Accepted: 08/03/2021] [Indexed: 11/29/2022] Open
Abstract
Simple Summary Microplastic pollution is damaging ecosystems and marine organisms worldwide, and, as this problem is becoming greater, the fate of these marine organisms should be studied. In this study, the physical condition and the DNA integrity of gills of Mediterranean mussels (Mytilus galloprovincialis) have been studied under four microplastic concentrations for 21 days. A worse physical status was shown at the end of the experiment when exposed to highest concentrations; however, DNA damage was higher when exposed to lower concentrations. These results prove that mussels can be affected by direct exposure even at a low microplastic concentration due to their filter-feeding behavior, making them more vulnerable to this type of pollution. Abstract The ever-growing concentration of microplastics in the marine environment is leading to a plethora of questions regarding marine organisms’ present and future health status. In this article, the Mediterranean mussel (Mytilus galloprovincialis), a commercial species distributed worldwide, has been exposed to 21 daily doses of polystyrene microparticles (10 µm) at four different concentrations that are environmentally realistic (control: no microplastics, C1: 0.02 mg/L, C2: 0.2 mg/L, and C3: 2 mg/L). The physical status through the condition index, and damages in DNA integrity in gills, through DNA fragmentation, were determined. Results showed a minor effect on DNA integrity but a worse physical status at higher doses. Results could be interpreted as a decrease in mussel feeding activity/filtration rates when exposed to high microplastic concentrations, thus reducing the direct exposure to microplastics in gills. These effects could be happening currently and/or may happen in the near future, threatening populations inhabiting microplastics-polluted environments.
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Jayawardena UA, Wickramasinghe DD, Udagama PV. Cytogenotoxicity evaluation of a heavy metal mixture, detected in a polluted urban wetland: Micronucleus and comet induction in the Indian green frog (Euphlyctis hexadactylus) erythrocytes and the Allium cepa bioassay. CHEMOSPHERE 2021; 277:130278. [PMID: 33774248 DOI: 10.1016/j.chemosphere.2021.130278] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 06/12/2023]
Abstract
Heavy metal contamination in wetland ecosystems is a serious environmental and health concern. This study evaluated the cytogenotoxicity of a previously evidenced heavy metal contamination (Cd, Cr, Cu, Pb and Zn ∼5 ppm each) in a polluted urban wetland, the Bellanwila-Attidiya sanctuary (BAS) in Sri Lanka, using a battery of cytogenotoxic assays. Micronucleus and comet assays evaluated the genotoxicity in erythrocytes of a common amphibian, the Indian green frog (Euphlyctis hexadactylus), under natural metal exposure in the wetland, and in vitro exposure, respectively.The Allium cepa bioassay assessed the cytogenotoxicity of the heavy metal mixture and of the individual metals, under laboratory exposure. Although in vivo natural exposure showed no significant induction of micronuclei in frog erythrocytes (P > 0.1), a significant and dose dependent elevation of comets was evident with in vitro exposure to the metal mixture (P < 0.001). Field controls did not show significant impacts in the A. cepa bioassay, whereas individual exposure to heavy metals reported lower effects than their combined exposure under laboratory conditions; Pb2+was the most toxic metal, with the highest mitotic inhibition (Pb2+>Cd2+>Zn2+>Cr6 >Cu2+), mutagenic potential as evaluated in the percentage incidence of chromosomal aberrations (Pb2+> Zn2+> Cu2+> Cr6+> Cd2+) and cytotoxicity evaluated by the incidence of cell apoptosis and necrosis (Pb2+>Cr6+>Cu2+>Cd2+>Zn2+). Thus, the test battery of micronucleus, comet and A. cepa assays that reveal differential aspects of cytogenotoxicity may serve as a valuable tool in environmental monitoring, primarily to screen for complex environmental mixtures of heavy metals that may impact ecological health.
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Affiliation(s)
- Uthpala A Jayawardena
- Department of Zoology and Environment Sciences, Faculty of Science, University of Colombo, Colombo 3, Sri Lanka
| | - Deepthi D Wickramasinghe
- Department of Zoology and Environment Sciences, Faculty of Science, University of Colombo, Colombo 3, Sri Lanka
| | - Preethi V Udagama
- Department of Zoology and Environment Sciences, Faculty of Science, University of Colombo, Colombo 3, Sri Lanka.
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Louzon M, Gimbert F, Belly T, Amiot C, Pauget B, de Vaufleury A, Capelli N. From environmental bioavailability of metal(loid)s to their ecogenotoxicological effects in land snails. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:43629-43642. [PMID: 33840022 DOI: 10.1007/s11356-021-13618-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
To date, no study has linked the environmental and the ecogenotoxicological bioavailability of contaminants to land snails. Yet, understanding the specific ecotoxicological mechanisms from bioaccumulation to genotoxicity is necessary e.g., to build an adverse outcome pathway relevant to risk assessment. Consequently, the aim of our study is to look for relationships between accumulated concentrations of As, Cd and Hg in sub-adult snails and ecotoxicological effects at the individual (survival and growth) and molecular (genomic stability) levels. This study combines random amplified polymorphic DNA (RAPD) coupled with high-resolution capillary electrophoresis system (HRS) and micronucleus (MN) assay on haemocytes to consider various types of cytogenomic damage, such as chromosomal aberrations, breakages, adducts and mutations. The results showed alteration of the individual endpoints at higher accumulation quotients (AQs) that reflect the excess of transfers to snails, especially with decreased survival for As. In addition, genotoxic effects were observed with an increased occurrence of MN in haemocytes for the three meta(loid)s considered (R2 from 0.57 to 0.61 as a function of the meta(loid)s). No concentration-dependent decrease in genome stability was highlighted by RAPD-HRS in snails exposed to As and Cd but not Hg. Our results demonstrate the complementarity of the RAPD-HRS and the MN assay for understanding the different genotoxic mechanisms of the three metal(loid)s studied in land snails. They show a way to better assess environmental risks of contaminated soils by associating ecotoxicity, genotoxicity and bioaccumulation assays (ISO 24032), i.e., ecogenotoxicological bioavailability. Convergences highlighted here between the bioaccumulation of metal(loid)s in viscera and genotoxic effects in haemocytes constitute a way to better assess the bioavailability of contaminants in soils to the land snail and the subsequent environmental risk.
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Affiliation(s)
- Maxime Louzon
- UMR CNRS 6249 Chrono-Environment, University of Franche-Comté, 16 route de Gray, 25030, Besançon Cedex, France
| | - Frédéric Gimbert
- UMR CNRS 6249 Chrono-Environment, University of Franche-Comté, 16 route de Gray, 25030, Besançon Cedex, France
| | - Thibault Belly
- UMR CNRS 6249 Chrono-Environment, University of Franche-Comté, 16 route de Gray, 25030, Besançon Cedex, France
| | - Caroline Amiot
- UMR CNRS 6249 Chrono-Environment, University of Franche-Comté, 16 route de Gray, 25030, Besançon Cedex, France
| | - Benjamin Pauget
- TESORA, Le Visium, 22 Avenue Aristide Briand, 94110, Arcueil, France
| | - Annette de Vaufleury
- UMR CNRS 6249 Chrono-Environment, University of Franche-Comté, 16 route de Gray, 25030, Besançon Cedex, France
| | - Nicolas Capelli
- UMR CNRS 6249 Chrono-Environment, University of Franche-Comté, 16 route de Gray, 25030, Besançon Cedex, France.
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Gajski G, Ravlić S, Godschalk R, Collins A, Dusinska M, Brunborg G. Application of the comet assay for the evaluation of DNA damage in mature sperm. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2021; 788:108398. [PMID: 34893163 DOI: 10.1016/j.mrrev.2021.108398] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 10/26/2021] [Accepted: 11/05/2021] [Indexed: 06/14/2023]
Abstract
DNA integrity is considered an important parameter of semen quality and is of significant value as a predictor of male fertility. Currently, there are several methods that can assess sperm DNA integrity. One such assay is the comet assay, or single-cell gel electrophoresis, which is a simple, sensitive, reliable, quick and low-cost technique that is used for measuring DNA strand breaks and repair at the level of individual cells. Although the comet assay is usually performed with somatic cells from different organs, the assay has the ability to detect genotoxicity in germ cells at different stages of spermatogenesis. Since the ability of sperm to remove DNA damage differs between the stages, interpretation of the results is dependent on the cells used. In this paper we give an overview on the use and applications of the comet assay on mature sperm and its ability to detect sperm DNA damage in both animals and humans. Overall, it can be concluded that the presence in sperm of significantly damaged DNA, assessed by the comet assay, is related to male infertility and seems to reduce live births. Although there is some evidence that sperm DNA damage also has a long-term impact on offspring's health, this aspect of DNA damage in sperm is understudied and deserves further attention. In summary, the comet assay can be applied as a useful tool to study effects of genotoxic exposures on sperm DNA integrity in animals and humans.
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Affiliation(s)
- Goran Gajski
- Institute for Medical Research and Occupational Health, Mutagenesis Unit, Zagreb, Croatia.
| | - Sanda Ravlić
- University of Zagreb, Centre for Research and Knowledge Transfer in Biotechnology, Zagreb, Croatia
| | - Roger Godschalk
- Maastricht University, School for Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology & Toxicology, Maastricht, the Netherlands
| | - Andrew Collins
- University of Oslo, Institute of Basic Medical Sciences, Department of Nutrition, Oslo, Norway
| | - Maria Dusinska
- Norwegian Institute for Air Research (NILU), Department of Environmental Chemistry, Health Effects Laboratory, Kjeller, Norway
| | - Gunnar Brunborg
- Norwegian Institute of Public Health (NIPH), Section of Molecular Toxicology, Department of Environmental Health, Oslo, Norway
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Rosner A, Armengaud J, Ballarin L, Barnay-Verdier S, Cima F, Coelho AV, Domart-Coulon I, Drobne D, Genevière AM, Jemec Kokalj A, Kotlarska E, Lyons DM, Mass T, Paz G, Pazdro K, Perić L, Ramšak A, Rakers S, Rinkevich B, Spagnuolo A, Sugni M, Cambier S. Stem cells of aquatic invertebrates as an advanced tool for assessing ecotoxicological impacts. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 771:144565. [PMID: 33736145 DOI: 10.1016/j.scitotenv.2020.144565] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/10/2020] [Accepted: 12/13/2020] [Indexed: 06/12/2023]
Abstract
Environmental stressors are assessed through methods that quantify their impacts on a wide range of metrics including species density, growth rates, reproduction, behaviour and physiology, as on host-pathogen interactions and immunocompetence. Environmental stress may induce additional sublethal effects, like mutations and epigenetic signatures affecting offspring via germline mediated transgenerational inheritance, shaping phenotypic plasticity, increasing disease susceptibility, tissue pathologies, changes in social behaviour and biological invasions. The growing diversity of pollutants released into aquatic environments requires the development of a reliable, standardised and 3R (replacement, reduction and refinement of animals in research) compliant in vitro toolbox. The tools have to be in line with REACH regulation 1907/2006/EC, aiming to improve strategies for potential ecotoxicological risks assessment and monitoring of chemicals threatening human health and aquatic environments. Aquatic invertebrates' adult stem cells (ASCs) are numerous and can be pluripotent, as illustrated by high regeneration ability documented in many of these taxa. This is of further importance as in many aquatic invertebrate taxa, ASCs are able to differentiate into germ cells. Here we propose that ASCs from key aquatic invertebrates may be harnessed for applicable and standardised new tests in ecotoxicology. As part of this approach, a battery of modern techniques and endpoints are proposed to be tested for their ability to correctly identify environmental stresses posed by emerging contaminants in aquatic environments. Consequently, we briefly describe the current status of the available toxicity testing and biota-based monitoring strategies in aquatic environmental ecotoxicology and highlight some of the associated open issues such as replicability, consistency and reliability in the outcomes, for understanding and assessing the impacts of various chemicals on organisms and on the entire aquatic environment. Following this, we describe the benefits of aquatic invertebrate ASC-based tools for better addressing ecotoxicological questions, along with the current obstacles and possible overhaul approaches.
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Affiliation(s)
- Amalia Rosner
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, P.O. Box 8030, Tel Shikmona, Haifa 3108001, Israel.
| | - Jean Armengaud
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, F-30200 Bagnols-sur-Cèze, France.
| | - Loriano Ballarin
- Department of Biology, University of Padova, via Ugo Bassi 58/B, 35121 Padova, Italy.
| | - Stéphanie Barnay-Verdier
- Sorbonne Université; CNRS, INSERM, Université Côte d'Azur, Institute for Research on Cancer and Aging Nice, F-06107 Nice, France.
| | - Francesca Cima
- Department of Biology, University of Padova, via Ugo Bassi 58/B, 35121 Padova, Italy.
| | - Ana Varela Coelho
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal.
| | - Isabelle Domart-Coulon
- Muséum National d'Histoire Naturelle, CNRS, Microorganism Communication and Adaptation Molecules MCAM, Paris F-75005, France.
| | - Damjana Drobne
- University of Ljubljana, Biotechnical Faculty, Department of Biology, Večna pot 111,D, 1000 Ljubljana, Slovenia.
| | - Anne-Marie Genevière
- Sorbonne Université, CNRS, Integrative Biology of Marine Organisms, BIOM, F-6650 Banyuls-sur-mer, France.
| | - Anita Jemec Kokalj
- University of Ljubljana, Biotechnical Faculty, Department of Biology, Večna pot 111,D, 1000 Ljubljana, Slovenia.
| | - Ewa Kotlarska
- Institute of Oceanology of the Polish Academy of Sciences, Powstańców Warszawy 55, 81-712 Sopot, Poland.
| | - Daniel Mark Lyons
- Center for Marine Research, Ruđer Bošković Institute, G. Paliaga 5, HR-52210 Rovinj, Croatia.
| | - Tali Mass
- Marine Biology Department, Leon H. Charney School of Marine Sciences, 199 Aba Khoushy Ave, University of Haifa, 3498838, Israel.
| | - Guy Paz
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, P.O. Box 8030, Tel Shikmona, Haifa 3108001, Israel.
| | - Ksenia Pazdro
- Institute of Oceanology of the Polish Academy of Sciences, Powstańców Warszawy 55, 81-712 Sopot, Poland
| | - Lorena Perić
- Rudjer Boskovic Institute, Laboratory for Aquaculture and Pathology of Aquaculture Organisms, Bijenička cesta 54, HR-10000 Zagreb, Croatia.
| | - Andreja Ramšak
- National Institute of Biology, Marine Biology Station, Fornače 41, 6330 Piran, Slovenia.
| | | | - Baruch Rinkevich
- Israel Oceanographic and Limnological Research, National Institute of Oceanography, P.O. Box 8030, Tel Shikmona, Haifa 3108001, Israel.
| | - Antonietta Spagnuolo
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy.
| | - Michela Sugni
- Department of Environmental Science and Policy, University of Milan, Via Celoria 2, 20133 Milano, Italy.
| | - Sébastien Cambier
- Luxembourg Institute of Science and Technology, 5, avenue des Hauts-Fourneaux, L-4362 Esch-sur-Alzette, Luxembourg.
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Yan X, Wang J, Zhu L, Wang J, Li S, Kim YM. Oxidative stress, growth inhibition, and DNA damage in earthworms induced by the combined pollution of typical neonicotinoid insecticides and heavy metals. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 754:141873. [PMID: 32911142 DOI: 10.1016/j.scitotenv.2020.141873] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/17/2020] [Accepted: 08/19/2020] [Indexed: 06/11/2023]
Abstract
Heavy metals pollution of soil and widespread application of neonicotinoid insecticides have caused environmental problems worldwide. To evaluate ecological toxicity resulting from the combined pollution of neonicotinoids and heavy metals, typical representatives of neonicotinoid insecticides (imidacloprid, thiamethoxam, dinotefuran) and heavy metals (cadmium, copper, zinc) were selected as soil pollutants; earthworms were used as test organisms. Analysis of the main and interaction effects of a combined pollution process were performed using a uniform design method. Results showed that the reactive oxygen species (ROS) content of earthworms in most treatment groups was higher during exposure than that of the control group. The malondialdehyde (MDA) and ROS content of earthworms demonstrated relatively low values on the 21st day and increased by the 28th day. The interaction between dinotefuran and Cd had significant antagonistic effects on ROS and MDA. The combined pollution adversely affected both the growth and genes of earthworms and also caused damage to the epidermis, midgut, and DNA. The interaction between imidacloprid and Cd was synergistic to ROS, weight inhibition rate, and Olive tail moment (OTM), but was antagonistic to MDA. Of all the single and combined exposures, Zn as a single chemical affected ROS and DNA damage the most, and MDA was significantly enhanced by imidacloprid. Composite pollutants may create different primary effects and interactions causing potential harm to soil organisms.
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Affiliation(s)
- Xiaojing Yan
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Key Laboratory of Agricultural Environment in Universities of Shandong, College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, China.
| | - Jinhua Wang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Key Laboratory of Agricultural Environment in Universities of Shandong, College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, China.
| | - Lusheng Zhu
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Key Laboratory of Agricultural Environment in Universities of Shandong, College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, China.
| | - Jun Wang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Key Laboratory of Agricultural Environment in Universities of Shandong, College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, China.
| | - Shuyan Li
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Key Laboratory of Agricultural Environment in Universities of Shandong, College of Resources and Environment, Shandong Agricultural University, Tai'an, 271018, China.
| | - Young Mo Kim
- Department of Civil and Environmental Engineering, Hanyang University, Seongdong-gu, Seoul 04763, Republic of Korea.
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Influence of Kv11.1 (hERG1) K + channel expression on DNA damage induced by the genotoxic agent methyl methanesulfonate. Pflugers Arch 2021; 473:197-217. [PMID: 33452554 DOI: 10.1007/s00424-021-02517-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 12/22/2020] [Accepted: 01/05/2021] [Indexed: 10/22/2022]
Abstract
Besides their crucial role in cell electrogenesis and maintenance of basal membrane potential, the voltage-dependent K+ channel Kv11.1/hERG1 shows an essential impact in cell proliferation and other processes linked to the maintenance of tumour phenotype. To check the possible influence of channel expression on DNA damage responses, HEK293 cells, treated with the genotoxic agent methyl methanesulfonate (MMS), were compared with those of a HEK-derived cell line (H36), permanently transfected with the Kv11.1-encoding gene, and with a third cell line (T2) obtained under identical conditions as H36, by permanent transfection of another unrelated plasma membrane protein encoding gene. In addition, to gain some insights about the canonical/conduction-dependent channel mechanisms that might be involved, the specific erg channel inhibitor E4031 was used as a tool. Our results indicate that the expression of Kv11.1 does not influence MMS-induced changes in cell cycle progression, because no differences were found between H36 and T2 cells. However, the canonical ion conduction function of the channel appeared to be associated with decreased cell viability at low/medium MMS concentrations. Moreover, direct DNA damage measurements, using the comet assay, demonstrated for the first time that Kv11.1 conduction activity was able to modify MMS-induced DNA damage, decreasing it particularly at high MMS concentration, in a way related to PARP1 gene expression. Finally, our data suggest that the canonical Kv11.1 effects may be relevant for tumour cell responses to anti-tumour therapies.
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Cordelli E, Bignami M, Pacchierotti F. Comet assay: a versatile but complex tool in genotoxicity testing. Toxicol Res (Camb) 2021; 10:68-78. [PMID: 33613974 DOI: 10.1093/toxres/tfaa093] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/26/2020] [Accepted: 11/12/2020] [Indexed: 12/11/2022] Open
Abstract
The comet assay is a versatile method for measuring DNA strand breaks in individual cells. It can also be applied to cells isolated from treated animals. In this review, we highlight advantages and limitations of this in vivo comet assay in a regulatory context. Modified versions of the standard protocol detect oxidized DNA bases and may be used to reveal sites of DNA base loss, DNA interstrand crosslinks, and the extent of DNA damage induced indirectly by reactive oxygen species elicited by chemical-induced oxidative stress. The assay is, however, at best semi-quantitative, and we discuss possible approaches to improving DNA damage quantitation and highlight the necessity of optimizing protocol standardization to enhance the comparability of results between laboratories. As a genotoxicity test in vivo, the in vivo comet assay has the advantage over the better established micronucleus erythrocyte test that it can be applied to any organ, including those that are specific targets of chemical carcinogens or those that are the first sites of contact of ingested or inhaled mutagens. We illustrate this by examples of its use in risk assessment for the food contaminants ochratoxin and furan. We suggest that improved quantitation is required to reveal the full potential of the comet assay and enhance its role in the battery of in vivo approaches to characterize the mechanisms of toxicity and carcinogenicity of chemicals and to aid the determination of safe human exposure limits.
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Affiliation(s)
- Eugenia Cordelli
- Territorial and Production Systems Sustainability Department, Health Protection Technology Division, ENEA, CR Casaccia, Via Anguillarese 301, Rome 00123, Italy
| | - Margherita Bignami
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, Rome 00161, Italy
| | - Francesca Pacchierotti
- Territorial and Production Systems Sustainability Department, Health Protection Technology Division, ENEA, CR Casaccia, Via Anguillarese 301, Rome 00123, Italy
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Ficociello G, Gerardi V, Uccelletti D, Setini A. Molecular and cellular responses to short exposure to bisphenols A, F, and S and eluates of microplastics in C. elegans. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:805-818. [PMID: 32820443 DOI: 10.1007/s11356-020-10498-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 08/12/2020] [Indexed: 06/11/2023]
Abstract
Bisphenol F (BPF) and bisphenol S (BPS) have been developed as an alternative to bisphenol A (BPA), a well-known endocrine disruptor, leading to their detection in the aquatic environment. In this work, we used the animal model Caenorhabditis elegans to improve our understanding of their potential effects on the biota and the environment. Our findings demonstrated that, after 24 h exposure, all the bisphenols examined increased the number of apoptotic corpses and the expression of the detoxifying enzymes SOD-3 and GST-4, without affecting the ROS levels, while BPA and BPS significantly enhanced DNA fragmentation. Furthermore, similarly to BPA, BPF and BPS did not alter the lifespan through the activation of SEK-1 and SKN-1 pathways. Thus, this study raises the attention of the risks associated with exposure to BPA alternatives. We also examined the effects of microplastic (MP) eluates on C. elegans. Aqueous extracts of weathered microplastic samples, both at high and low degradation state and pellets, have been evaluated for their effects on lifespan, DNA fragmentation, germline apoptosis, and oxidative stress response. Overall, our findings showed that eluates of low degraded plastics exert a greater toxic effect on the nematode C. elegans compared with the aqueous sample of high degraded plastic fragments and pellets.
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Affiliation(s)
- Graziella Ficociello
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University of Rome, Piazzale Aldo Moro 1, 00185, Rome, Italy
| | - Valentina Gerardi
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University of Rome, Piazzale Aldo Moro 1, 00185, Rome, Italy
| | - Daniela Uccelletti
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University of Rome, Piazzale Aldo Moro 1, 00185, Rome, Italy.
| | - Andrea Setini
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University of Rome, Piazzale Aldo Moro 1, 00185, Rome, Italy
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Silva Pinto BG, Marques Soares TK, Azevedo Linhares M, Castilhos Ghisi N. Occupational exposure to pesticides: Genetic danger to farmworkers and manufacturing workers - A meta-analytical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 748:141382. [PMID: 32818891 DOI: 10.1016/j.scitotenv.2020.141382] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 06/11/2023]
Abstract
In the last decades, the use of pesticides has grown worldwide. However, there is great worry about the impact of pesticides on human health, due to their wide distribution and possible long-term effects. Complex mixtures with different formulations are often used, including a variety of genotoxic compounds. Thus, genotoxicity tests form an important part of cancer research and risk assessment of potential carcinogens. This study aimed to conduct a meta-analytical review of possible genetic damage resulting from occupational exposure in farmworkers and workers employed in pesticide production, both ever in comparison to non-exposed people, using comet assay (CA), micronucleus test (MN) and telomere length (TL) data available in the scientific literature. A total of 145 datasets were evaluated. The results showed that the occupationally exposed workers had more DNA damage in CA and MN than non-exposed workers. The TL result did not show difference between groups. When the data were categorized by gender (male, female or both), crop (general, tobacco, fruits, soybeans, cotton) and occupation (manufacturing or farmworkers), the study found that the exposed group always presented higher damage than the non-exposed individuals, in CA and MN. More studies with TL are needed to obtain a more precise response, and to segregate the effect of tobacco farming from pesticide exposure. When TL was segregated by gender, women and men presented difference between exposed and non-exposed groups. In general, the publication bias impact was modest. If all relevant studies were included, the key finding (i.e. the effect of pesticide exposure increases the genotoxicity and mutation rate) would probably remain unchanged. Lastly, it is important to highlight the importance of the use of personal protective equipment (PPE), and offer safer options to farmworkers (e.g. organic farming or less toxic alternatives).
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Affiliation(s)
- Bruna Gabriele Silva Pinto
- Universidade Tecnológica Federal do Paraná (UTFPR), Estrada para Boa Esperança, s/n, km 04, P.O. Box 157, CEP: 85660-000 Dois Vizinhos, PR, Brazil.
| | - Tábatta Kim Marques Soares
- Universidade Tecnológica Federal do Paraná (UTFPR), Estrada para Boa Esperança, s/n, km 04, P.O. Box 157, CEP: 85660-000 Dois Vizinhos, PR, Brazil.
| | - Maristela Azevedo Linhares
- Centro de Tecnologia em Saúde e Meio Ambiente, Instituto de Tecnologia do Paraná (Tecpar), Rua Professor Algacyr Munhoz Mader, 3775, CEP: 81350-10 Curitiba, PR, Brazil.
| | - Nédia Castilhos Ghisi
- Programa de Pós-Graduação em Biotecnologia, Universidade Tecnológica Federal do Paraná (UTFPR), Estrada para Boa Esperança, s/n, km 04, P.O. Box 157, CEP: 85660-000 Dois Vizinhos, PR, Brazil.
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B-Comet Assay (Comet Assay on Buccal Cells) for the Evaluation of Primary DNA Damage in Human Biomonitoring Studies. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17249234. [PMID: 33321868 PMCID: PMC7763633 DOI: 10.3390/ijerph17249234] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 11/29/2020] [Accepted: 12/07/2020] [Indexed: 12/16/2022]
Abstract
Many subjects perceive venous blood collection as too invasive, and thus moving to better-accepted procedures for leukocytes collection might be crucial in human biomonitoring studies (e.g., biomonitoring of occupational or residential exposure to genotoxins) management. In this context, primary DNA damage was assessed in buccal lymphocytes (BLs), fresh whole venous, and capillary blood leukocytes, and compared with that in peripheral blood lymphocytes (PBLs)—the most frequently used cells—in 15 young subjects. Mouthwashes were collected after the volunteers rinsed their mouths with normal saline, and BLs were isolated by density gradient centrifugation. Blood samples were collected by venipuncture or by lancet. Anthropometric and lifestyle information was obtained by the administration of a structured questionnaire. As shown in the Bland-Altman plots, the level of agreement between BLs and PBLs lied within the accepted range, we thus enrolled a wider population (n = 54) to assess baseline DNA damage in BLs. In these cells, mean values of tail length (µm), tail intensity (%), and tail moment were 25.7 ± 0.9, 6.7 ± 0.4 and 1.0 ± 0.1, respectively. No significant association was observed between sex and smoking habit with any of the DNA damage parameters. Conversely, underweight subjects displayed significantly higher genomic instability compared with normal weight group (p < 0.05). In conclusion, we successfully managed to set up and update a non-invasive and well-accepted procedure for the isolation of BLs from saliva that could be useful in upcoming biomonitoring studies.
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Ceschi-Bertoli L, Vidal FAP, Balsamo PJ, Abdalla FC. Comet assay protocol for Bombus atratus fat body and pericardial cells (Hymenoptera, bombini) at a safe concentration of mercury. CHEMOSPHERE 2020; 261:127752. [PMID: 32731026 DOI: 10.1016/j.chemosphere.2020.127752] [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: 04/22/2020] [Revised: 07/14/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
The decline of the Bombus population is closely related to the presence of environmental pollutants. Among these pollutants, trace metals represent a major concern, which includes mercury, a known genotoxic substance. The induction of genotoxicity may be demonstrated by the comet assay (a.k.a. single-cell gel electrophoresis), a simple and sensitive method for DNA damage estimating. The current work provided, for the first time, a protocol of comet assay for Bombus atratus using mercury as a standard chemical at safe concentrations according to the Environment National Council of Brazil, and the World Health Organization. Bees were collected and divided into three groups (n = 11 each), in which the exposed groups received a 0.2 ppb or a 1 ppb of mercury solution, and the control group received water. The bioassay was performed for 48 h at controlled temperature and humidity conditions, according to the OECD guideline toxicological test method for B. terrestris. The samples were stained with different dyes to observe the efficacy of each one. Variations of parameters in methodology, such as concentration and time of exposure to lysis solution as well as the electrophoretic process, allowed the observation of comets at different levels. DAPI and acridine orange presented an unstable fluorescence, and silver nitrate dye was more effective. Therefore, the comet assay was shown to be an effective method to evaluate genotoxic effects in bees. The obtained results may be helpful for the establishment of a suitable protocol for future genotoxicity assessment in neotropical bees using different doses of xenobiotics.
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Affiliation(s)
- Letícia Ceschi-Bertoli
- Postgraduate Program in Biotechnology and Environmental Monitoring, Federal University of São Carlos, UFSCar, Sorocaba, Brazil; Department of Biology, Laboratory of Structural and Functional Biology (LABEF), Federal University of São Carlos, UFSCar, Sorocaba, SP, Brazil
| | - Felipe Augusto Pinto Vidal
- Postgraduate Program in Biotechnology and Environmental Monitoring, Federal University of São Carlos, UFSCar, Sorocaba, Brazil; Department of Biology, Laboratory of Structural and Functional Biology (LABEF), Federal University of São Carlos, UFSCar, Sorocaba, SP, Brazil
| | - Paulo José Balsamo
- Postgraduate Program in Biotechnology and Environmental Monitoring, Federal University of São Carlos, UFSCar, Sorocaba, Brazil; Department of Biology, Laboratory of Structural and Functional Biology (LABEF), Federal University of São Carlos, UFSCar, Sorocaba, SP, Brazil
| | - Fábio Camargo Abdalla
- Postgraduate Program in Biotechnology and Environmental Monitoring, Federal University of São Carlos, UFSCar, Sorocaba, Brazil; Department of Biology, Laboratory of Structural and Functional Biology (LABEF), Federal University of São Carlos, UFSCar, Sorocaba, SP, Brazil.
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Augustyniak M, Tarnawska M, Dziewięcka M, Kafel A, Rost-Roszkowska M, Babczyńska A. DNA damage in Spodoptera exigua after multigenerational cadmium exposure - A trade-off between genome stability and adaptation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 745:141048. [PMID: 32758757 DOI: 10.1016/j.scitotenv.2020.141048] [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: 04/01/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
Human activity is a serious cause of extensive changes in the environment and a constant reason for the emergence of new stress factors. Thus, to survive and reproduce, organisms must constantly implement a program of adaptation to continuously changing conditions. The research presented here is focused on tracking slow changes occurring in Spodoptera exigua (Lepidoptera: Noctuidae) caused by multigenerational exposure to sub-lethal cadmium doses. The insects received food containing cadmium at concentrations of 5, 11, 22 and 44 μg per g of dry mass of food. The level of DNA stability was monitored by a comet assay in subsequent generations up to the 36th generation. In the first three generations, the level of DNA damage was high, especially in the groups receiving higher doses of cadmium in the diet. In the fourth generation, a significant reduction in the level of DNA damage was observed, which could indicate that the desired stability of the genome was achieved. Surprisingly, however, in subsequent generations, an alternating increase and decrease was found in DNA stability. The observed cycles of changing DNA stability were longer lasting in insects consuming food with a lower Cd content. Thus, a transient reduction in genome stability can be perceived as an opportunity to increase the number of genotypes that undergo selection. This phenomenon occurs faster if the severity of the stress factor is high but is low enough to allow the population to survive.
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Affiliation(s)
- Maria Augustyniak
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland.
| | - Monika Tarnawska
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland
| | - Marta Dziewięcka
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland
| | - Alina Kafel
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland
| | - Magdalena Rost-Roszkowska
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland
| | - Agnieszka Babczyńska
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland
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Muruzabal D, Collins A, Azqueta A. The enzyme-modified comet assay: Past, present and future. Food Chem Toxicol 2020; 147:111865. [PMID: 33217526 DOI: 10.1016/j.fct.2020.111865] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 11/08/2020] [Accepted: 11/13/2020] [Indexed: 12/17/2022]
Abstract
The enzyme-modified comet assay was developed in order to detect DNA lesions other than those detected by the standard version (single and double strand breaks and alkali-labile sites). Various lesion-specific enzymes, from the DNA repair machinery of bacteria and humans, have been combined with the comet assay, allowing detection of different oxidized and alkylated bases as well as cyclobutane pyrimidine dimers, mis-incorporated uracil and apurinic/apyrimidinic sites. The enzyme-modified comet assay has been applied in different fields - human biomonitoring, environmental toxicology, and genotoxicity testing (both in vitro and in vivo) - as well as in basic research. Up to now, twelve enzymes have been employed; here we describe the enzymes and give examples of studies in which they have been applied. The bacterial formamidopyrimidine DNA glycosylase (Fpg) and endonuclease III (EndoIII) have been extensively used while others have been used only rarely. Adding further enzymes to the comet assay toolbox could potentially increase the variety of DNA lesions that can be detected. The enzyme-modified comet assay can play a crucial role in the elucidation of the mechanism of action of both direct and indirect genotoxins, thus increasing the value of the assay in the regulatory context.
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Affiliation(s)
- Damián Muruzabal
- Universidad de Navarra, Department of Pharmacology and Toxicology, Faculty of Pharmacy and Nutrition, Irunlarrea 1, 310008, Pamplona, Spain
| | - Andrew Collins
- Department of Nutrition, Institute for Basic Medical Sciences, University of Oslo, Sognsvannsveien 9, 0372, Oslo, Norway
| | - Amaya Azqueta
- Universidad de Navarra, Department of Pharmacology and Toxicology, Faculty of Pharmacy and Nutrition, Irunlarrea 1, 310008, Pamplona, Spain; IdiSNA, Navarra Institute for Health Research, Pamplona, Spain.
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Minimum Information for Reporting on the Comet Assay (MIRCA): recommendations for describing comet assay procedures and results. Nat Protoc 2020; 15:3817-3826. [PMID: 33106678 PMCID: PMC7688437 DOI: 10.1038/s41596-020-0398-1] [Citation(s) in RCA: 180] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 08/18/2020] [Indexed: 12/15/2022]
Abstract
The comet assay is a widely used test for the detection of DNA damage and repair activity. However, there are interlaboratory differences in reported levels of baseline and induced damage in the same experimental systems. These differences may be attributed to protocol differences, although it is difficult to identify the relevant conditions because detailed comet assay procedures are not always published. Here, we present a Consensus Statement for the Minimum Information for Reporting Comet Assay (MIRCA) providing recommendations for describing comet assay conditions and results. These recommendations differentiate between 'desirable' and 'essential' information: 'essential' information refers to the precise details that are necessary to assess the quality of the experimental work, whereas 'desirable' information relates to technical issues that might be encountered when repeating the experiments. Adherence to MIRCA recommendations should ensure that comet assay results can be easily interpreted and independently verified by other researchers.
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Jovanović Marić JM, Kračun-Kolarević MJ, Kolarević SM, Đorđević JZ, Paunović MM, Kostić-Vuković JM, Sunjog KZ, Smiljanić PB, Gačić ZM, Vuković-Gačić BS. Sensitivity of Bleak (Alburnus alburnus) in Detection of the Wastewater Related Pressure in Large Lowland Rivers. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 105:224-229. [PMID: 32710385 DOI: 10.1007/s00128-020-02944-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
This study deals with bleak (Alburnus alburnus) sensitivity in detecting of the wastewater related pressure in large lowland rivers. The major objective was to investigate if the response measured in bleak should be linked to a certain stretch of the river and characterised as "stretch specific", or it should be linked to the sampling site and characterised as "site specific". The response was evaluated via condition index, metal pollution index, DNA damage and cell viability using integrated biomarker response approach. The study was conducted at 3 sub-sites characterized by different pollution levels in a relatively short stretch (2 km) of the Sava River (Serbia). Results indicated that the response of the biomarkers in bleak can be interpreted as "site specific". Among the studied biomarkers, DNA damage assessed by comet assay and micronucleus test has shown high sensitivity in differentiation of the sites.
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Affiliation(s)
- Jovana M Jovanović Marić
- Department for Hydroecology and Water protection, University of Belgrade, Institute for Biological Research ¨Siniša Stanković¨, National Institute of Republic of Serbia, Bulevar despota Stefana 142, Belgrade, 11000, Serbia
- Faculty of Biology, Chair of Microbiology, Center for Genotoxicology and Ecogenotoxicology, University of Belgrade, Studentski trg 16, Belgrade, 11000, Serbia
| | - Margareta J Kračun-Kolarević
- Department for Hydroecology and Water protection, University of Belgrade, Institute for Biological Research ¨Siniša Stanković¨, National Institute of Republic of Serbia, Bulevar despota Stefana 142, Belgrade, 11000, Serbia.
| | - Stoimir M Kolarević
- Department for Hydroecology and Water protection, University of Belgrade, Institute for Biological Research ¨Siniša Stanković¨, National Institute of Republic of Serbia, Bulevar despota Stefana 142, Belgrade, 11000, Serbia
- Faculty of Biology, Chair of Microbiology, Center for Genotoxicology and Ecogenotoxicology, University of Belgrade, Studentski trg 16, Belgrade, 11000, Serbia
| | - Jelena Z Đorđević
- Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, Belgrade, 11000, Serbia
| | - Momir M Paunović
- Department for Hydroecology and Water protection, University of Belgrade, Institute for Biological Research ¨Siniša Stanković¨, National Institute of Republic of Serbia, Bulevar despota Stefana 142, Belgrade, 11000, Serbia
| | - Jovana M Kostić-Vuković
- Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, Belgrade, 11000, Serbia
| | - Karolina Z Sunjog
- Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, Belgrade, 11000, Serbia
| | - Petar B Smiljanić
- Department for Hydroecology and Water protection, University of Belgrade, Institute for Biological Research ¨Siniša Stanković¨, National Institute of Republic of Serbia, Bulevar despota Stefana 142, Belgrade, 11000, Serbia
| | - Zoran M Gačić
- Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, Belgrade, 11000, Serbia
| | - Branka S Vuković-Gačić
- Faculty of Biology, Chair of Microbiology, Center for Genotoxicology and Ecogenotoxicology, University of Belgrade, Studentski trg 16, Belgrade, 11000, Serbia
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Gajski G, Langie S, Zhanataev A. Recent applications of the Comet Assay: A report from the International Comet Assay Workshop 2019. Toxicol Lett 2020; 333:1-3. [PMID: 32721575 DOI: 10.1016/j.toxlet.2020.07.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 07/23/2020] [Indexed: 12/14/2022]
Abstract
The International Comet Assay Workshops (ICAW) are a series of scientific conferences dealing with different aspects of the comet assay. The assay itself is a simple method for the detection of DNA strand breaks at the cellular level and can be applied to any cell type derived from different organs and tissues of eukaryotic organisms. Additionally, the comet assay is widely applied in human biomonitoring, ecotoxicology, genotoxicity testing of chemicals, but also in basic research studying the mechanisms of DNA damage and repair. The 2019 ICAW edition gathered about 80 participants with over 30 lecturers, 27 poster presentations and 2 open discussion sessions presenting the latest advances in technical developments as well as applications of the comet assay in genetic toxicology, and environmental and human biomonitoring. This report summarises the important issues that were raised and discussed during the sessions as well as a short synopsis of the papers selected for inclusion in this special issue. Based on the topics presented at the workshop, the assay with its new modifications and applications has a bright future and will for sure stay one of the most popular methods in genetic toxicology and beyond in the years to come.
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Affiliation(s)
- Goran Gajski
- Institute for Medical Research and Occupational Health, Mutagenesis Unit, Zagreb, Croatia.
| | - Sabine Langie
- Hasselt University, Centre for Environmental Sciences, Hasselt, Belgium; Maastricht University, School for Nutrition and Translational Research in Metabolism, Department of Pharmacology and Toxicology, Maastricht, the Netherlands.
| | - Aliy Zhanataev
- Zakusov Research Institute of Pharmacology, Laboratory of Pharmacology and Mutagenesis, Moscow, Russia.
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Habas K, Brinkworth MH, Anderson D. A male germ cell assay and supporting somatic cells: its application for the detection of phase specificity of genotoxins in vitro. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2020; 23:91-106. [PMID: 32046612 DOI: 10.1080/10937404.2020.1724577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Male germ stem cells are responsible for transmission of genetic information to the next generation. Some chemicals exert a negative impact on male germ cells, either directly, or indirectly affecting them through their action on somatic cells. Ultimately, these effects might inhibit fertility, and may exhibit negative consequences on future offspring. Genotoxic anticancer agents may interact with DNA in germ cells potentially leading to a heritable germline mutation. Experimental information in support of this theory has not always been reproducible and suitable in vivo studies remain limited. Thus, alternative male germ cell tests, which are now able to detect phase specificity of such agents, might be used by regulatory agencies to help evaluate the potential risk of mutation. However, there is an urgent need for such approaches for identification of male reproductive genotoxins since this area has until recently been dependent on in vivo studies. Many factors drive alternative approaches, including the (1) commitment to the principles of the 3R's (Replacement, Reduction, and Refinement), (2) time-consuming nature and high cost of animal experiments, and (3) new opportunities presented by new molecular analytical assays. There is as yet currently no apparent appropriate model of full mammalian spermatogenesis in vitro, under the REACH initiative, where new tests introduced to assess genotoxicity and mutagenicity need to avoid unnecessary testing on animals. Accordingly, a battery of tests used in conjunction with the high throughput STAPUT gravity sedimentation was recently developed for purification of male germ cells to investigate genotoxicity for phase specificity in germ cells. This system might be valuable for the examination of phases previously only available in mammals with large-scale studies of germ cell genotoxicity in vivo. The aim of this review was to focus on this alternative approach and its applications as well as on chemicals of known in vivo phase specificities used during this test system development.
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Affiliation(s)
- Khaled Habas
- Faculty of Life Sciences, University of Bradford, Bradford, UK
| | | | - Diana Anderson
- Faculty of Life Sciences, University of Bradford, Bradford, UK
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Jiang X, Chang Y, Zhang T, Qiao Y, Klobučar G, Li M. Toxicological effects of polystyrene microplastics on earthworm (Eisenia fetida). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 259:113896. [PMID: 31918148 DOI: 10.1016/j.envpol.2019.113896] [Citation(s) in RCA: 161] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 12/13/2019] [Accepted: 12/28/2019] [Indexed: 05/23/2023]
Abstract
Microplastics are plastic fragments of particle sizes less than 5 mm, which are widely distributed in marine and terrestrial environments. In this study, earthworms Eisenia fetida were exposed to 100 and 1000 μg of 100 nm and 1300 nm fluorescent polystyrene microplastics (PS-MPs) per kg of artificial soil for 14 days. Uptake or accumulation of PS-MPs in earthworm intestines, histopathological changes, oxidative stress, and DNA damage were assessed to determine the toxicological effects of PS-MPs on E. fetida. The results showed that the average accumulated concentrations in the earthworm intestines were higher for 1300 nm PS-MPs (0.084 ± 0.005 and 0.094 ± 0.003 μg/mg for 100 and 1000 μg/kg, respectively) than for 100 nm PS-MPs (0.015 ± 0.001 and 0.033 ± 0.002 μg/mg for 100 and 1000 μg/kg, respectively). In addition, histopathological analysis indicated that the intestinal cells were damaged after exposure to PS-MPs. Furthermore, PS-MPs significantly changed glutathione (GSH) level and superoxide dismutase (SOD) activity. The GSH levels were 86.991 ± 7.723, 165.436 ± 4.256-167.767 ± 18.642, and 93.590 ± 4.279-173.980 ± 15.523 μmol/L in the control, 100 nm, and 1300 nm PS-MPs treatment groups. In addition, the SOD activities were 10.566 ± 0.621, 9.039 ± 0.787-9.408 ± 0.493, and 7.959 ± 0.422-9.195 ± 0.327 U/mg protein for the control, 100 nm, and 1300 nm PS-MPs treatment groups, respectively, indicating that oxidative stress was induced after PS-MPs exposure. Furthermore, the comet assay suggested that exposure to PS-MPs induced DNA damage in earthworms. Overall, 1300 nm PS-MPs showed more toxic effect than 100 nm PS-MPs on earthworms. These findings provide new insights regarding the toxicological effects of low concentrations of microplastics on earthworms, and on the ecological risks of microplastics to soil animals.
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Affiliation(s)
- Xiaofeng Jiang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Yeqian Chang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Tong Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Yu Qiao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Göran Klobučar
- Department of Biology, Faculty of Science, University of Zagreb, 10000, Zagreb, Croatia
| | - Mei Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.
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