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Rossnerova A, Chvojkova I, Elzeinova F, Pelclova D, Klusackova P, Zdimal V, Ondrackova L, Bradna P, Roubickova A, Simova Z, Rossner P. Genetic alteration profiling in middle-aged women acutely exposed during the mechanical processing of dental nanocomposites. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 108:104462. [PMID: 38710242 DOI: 10.1016/j.etap.2024.104462] [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: 09/06/2023] [Revised: 04/23/2024] [Accepted: 05/02/2024] [Indexed: 05/08/2024]
Abstract
Nanoparticles (NPs) have become an important part of everyday life, including their application in dentistry. Aside from their undoubted benefits, questions regarding their risk to human health, and/or genome have arisen. However, studies concerning cytogenetic effects are completely absent. A group of women acutely exposed to an aerosol released during dental nanocomposite grinding was sampled before and after the work. Exposure monitoring including nano (PM0.1) and respirable (PM4) fractions was performed. Whole-chromosome painting for autosomes #1, #4, and gonosome X was applied to estimate the pattern of cytogenetic damage including structural and numerical alterations. The results show stable genomic frequency of translocations (FG/100), in contrast to a significant 37.8% (p<0.05) increase of numerical aberrations caused by monosomies (p<0.05), but not trisomies. Monosomies were mostly observed for chromosome X. In conclusion, exposure to nanocomposites in stomatology may lead to an increase in numerical aberrations which can be dangerous for dividing cells.
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Affiliation(s)
- Andrea Rossnerova
- Department of Toxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, Czech Republic.
| | - Irena Chvojkova
- Department of Toxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, Czech Republic
| | - Fatima Elzeinova
- Department of Toxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, Czech Republic
| | - Daniela Pelclova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Czech Republic
| | - Pavlina Klusackova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Czech Republic
| | - Vladimir Zdimal
- Department of Aerosol Chemistry and Physics, Institute of Chemical Process Fundamentals CAS, Czech Republic
| | - Lucie Ondrackova
- Department of Aerosol Chemistry and Physics, Institute of Chemical Process Fundamentals CAS, Czech Republic
| | - Pavel Bradna
- Institute of Dental Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Czech Republic
| | - Adela Roubickova
- Institute of Dental Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Czech Republic
| | - Zuzana Simova
- Department of Toxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, Czech Republic
| | - Pavel Rossner
- Department of Toxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, Czech Republic
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Machová Urdzíková L, Mareková D, Vasylyshyn T, Matouš P, Patsula V, Oleksa V, Shapoval O, Vosmanská M, Liebl D, Benda A, Herynek V, Horák D, Jendelová P. Toxicity of Large and Small Surface-Engineered Upconverting Nanoparticles for In Vitro and In Vivo Bioapplications. Int J Mol Sci 2024; 25:5294. [PMID: 38791332 PMCID: PMC11121289 DOI: 10.3390/ijms25105294] [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: 03/15/2024] [Revised: 04/29/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024] Open
Abstract
In this study, spherical or hexagonal NaYF4:Yb,Er nanoparticles (UCNPs) with sizes of 25 nm (S-UCNPs) and 120 nm (L-UCNPs) were synthesized by high-temperature coprecipitation and subsequently modified with three kinds of polymers. These included poly(ethylene glycol) (PEG) and poly(N,N-dimethylacrylamide-co-2-aminoethylacrylamide) [P(DMA-AEA)] terminated with an alendronate anchoring group, and poly(methyl vinyl ether-co-maleic acid) (PMVEMA). The internalization of nanoparticles by rat mesenchymal stem cells (rMSCs) and C6 cancer cells (rat glial tumor cell line) was visualized by electron microscopy and the cytotoxicity of the UCNPs and their leaches was measured by the real-time proliferation assay. The comet assay was used to determine the oxidative damage of the UCNPs. An in vivo study on mice determined the elimination route and potential accumulation of UCNPs in the body. The results showed that the L- and S-UCNPs were internalized into cells in the lumen of endosomes. The proliferation assay revealed that the L-UCNPs were less toxic than S-UCNPs. The viability of rMSCs incubated with particles decreased in the order S-UCNP@Ale-(PDMA-AEA) > S-UCNP@Ale-PEG > S-UCNPs > S-UCNP@PMVEMA. Similar results were obtained in C6 cells. The oxidative damage measured by the comet assay showed that neat L-UCNPs caused more oxidative damage to rMSCs than all coated UCNPs while no difference was observed in C6 cells. An in vivo study indicated that L-UCNPs were eliminated from the body via the hepatobiliary route; L-UCNP@Ale-PEG particles were almost eliminated from the liver 96 h after intravenous application. Pilot fluorescence imaging confirmed the limited in vivo detection capabilities of the nanoparticles.
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Affiliation(s)
- Lucia Machová Urdzíková
- Institute of Experimental Medicine, Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic; (L.M.U.); (D.M.)
| | - Dana Mareková
- Institute of Experimental Medicine, Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic; (L.M.U.); (D.M.)
| | - Taras Vasylyshyn
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 16200 Prague, Czech Republic; (T.V.); (V.P.); (V.O.); (O.S.); (D.H.)
| | - Petr Matouš
- Center for Advanced Preclinical Imaging, First Faculty of Medicine, Charles University, Salmovská 3, 12000 Prague, Czech Republic; (P.M.); (V.H.)
| | - Vitalii Patsula
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 16200 Prague, Czech Republic; (T.V.); (V.P.); (V.O.); (O.S.); (D.H.)
| | - Viktoriia Oleksa
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 16200 Prague, Czech Republic; (T.V.); (V.P.); (V.O.); (O.S.); (D.H.)
| | - Oleksandr Shapoval
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 16200 Prague, Czech Republic; (T.V.); (V.P.); (V.O.); (O.S.); (D.H.)
| | - Magda Vosmanská
- Department of Analytical Chemistry, University of Chemistry and Technology, Technická 5, 16000 Prague, Czech Republic;
| | - David Liebl
- Imaging Methods Core Facility, BIOCEV, Faculty of Science, Charles University, Průmyslová 595, 25250 Vestec-Jesenice u Prahy, Czech Republic; (D.L.); (A.B.)
| | - Aleš Benda
- Imaging Methods Core Facility, BIOCEV, Faculty of Science, Charles University, Průmyslová 595, 25250 Vestec-Jesenice u Prahy, Czech Republic; (D.L.); (A.B.)
| | - Vít Herynek
- Center for Advanced Preclinical Imaging, First Faculty of Medicine, Charles University, Salmovská 3, 12000 Prague, Czech Republic; (P.M.); (V.H.)
| | - Daniel Horák
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 16200 Prague, Czech Republic; (T.V.); (V.P.); (V.O.); (O.S.); (D.H.)
| | - Pavla Jendelová
- Institute of Experimental Medicine, Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic; (L.M.U.); (D.M.)
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Thakkar Y, Joshi K, Hickey C, Wahler J, Wall B, Etter S, Smith B, Griem P, Tate M, Jones F, Oudraogo G, Pfuhler S, Choi C, Williams G, Greim H, Eisenbrand G, Dekant W, Api AM. OUP accepted manuscript. Mutagenesis 2022; 37:13-23. [PMID: 35302169 PMCID: PMC8976226 DOI: 10.1093/mutage/geac004] [Citation(s) in RCA: 182] [Impact Index Per Article: 91.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 02/04/2022] [Indexed: 12/04/2022] Open
Abstract
BlueScreen HC is a mammalian cell-based assay for measuring the genotoxicity and cytotoxicity of chemical compounds and mixtures. The BlueScreen HC assay has been utilized at the Research Institute for Fragrance Materials in a safety assessment program as a screening tool to prioritize fragrance materials for higher-tier testing, as supporting evidence when using a read-across approach, and as evidence to adjust the threshold of toxicological concern. Predictive values for the BlueScreen HC assay were evaluated based on the ability of the assay to predict the outcome of in vitro and in vivo mutagenicity and chromosomal damage genotoxicity assays. A set of 371 fragrance materials was assessed in the BlueScreen HC assay along with existing or newly generated in vitro and in vivo genotoxicity data. Based on a weight-of-evidence approach, the majority of materials in the data set were deemed negative and concluded not to have the potential to be genotoxic, while only a small proportion of materials were determined to show genotoxic effects in these assays. Analysis of the data set showed a combination of high positive agreement but low negative agreement between BlueScreen HC results, in vitro regulatory genotoxicity assays, and higher-tier test results. The BlueScreen HC assay did not generate any false negatives, thereby providing robustness when utilizing it as a high-throughput screening tool to evaluate the large inventory of fragrance materials. From the perspective of protecting public health, it is desirable to have no or minimal false negatives, as a false-negative result may incorrectly indicate the lack of a genotoxicity hazard. However, the assay did have a high percentage of false-positive results, resulting in poor positive predictivity of the in vitro genotoxicity test battery outcome. Overall, the assay generated 100% negative predictivity and 3.9% positive predictivity. In addition to the data set of 371 fragrance materials, 30 natural complex substances were evaluated for BlueScreen HC, Ames, and in vitro micronucleus assay, and a good correlation in all three assays was observed. Overall, while a positive result may have to be further investigated, these findings suggest that the BlueScreen HC assay can be a valuable screening tool to detect the genotoxic potential of fragrance materials and mixtures.
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Affiliation(s)
- Yax Thakkar
- Research Institute for Fragrance Materials, Inc., 50 Tice Blvd, Woodcliff Lake, NJ 07677, United States
- Corresponding author. Research Institute for Fragrance Materials, Inc., 50 Tice Boulevard, Woodcliff Lake, NJ 07677-7654, United States. E-mail:
| | - Kaushal Joshi
- Research Institute for Fragrance Materials, Inc., 50 Tice Blvd, Woodcliff Lake, NJ 07677, United States
| | - Christina Hickey
- Firmenich, Inc., 250 Plainsboro Rd, Plainsboro Township, NJ 08536, United States
| | - Joseph Wahler
- Research Institute for Fragrance Materials, Inc., 50 Tice Blvd, Woodcliff Lake, NJ 07677, United States
- Present address: 15211 North Kierland Blvd Scottsdale, AZ 85254, United States
| | - Brian Wall
- Global Product Safety, Colgate-Palmolive Company, 909 River Rd, Piscataway, NJ 08854, United States
| | - Sylvain Etter
- Firmenich, Inc., Rue de la Bergère 7, 1242 Satigny, Switzerland
| | - Benjamin Smith
- Innovations in Food & Chemical Safety Programme, Agency for Science, Technology and Research (A*STAR), 1, #20-10 Fusionopolis Way, Connexis, North Tower, 138632, Singapore
- Singapore Institute of Food & Biotechnology Innovation, A*STAR, 1, #20-10 Fusionopolis Way, Connexis, North Tower, 138632, Singapore
| | - Peter Griem
- Symrise AG, Mühlenfeldstr 1, 37603, Holzminden, Niedersachsen, Germany
| | - Matthew Tate
- Gentronix, Alderley Edge, Macclesfield SK10 4TG, United Kingdom
| | - Frank Jones
- SC Johnson, 1525 Howe St, Racine, WI 53403, United States
| | - Gladys Oudraogo
- L'Oreal Life Sciences Research, 1, Av Eugene Schueller 93600 Aulnay sous Bois, France
| | - Stefan Pfuhler
- The Procter & Gamble Company, Mason Business Centre, Mason, OH, United States
| | | | - Gary Williams
- New York Medical College, 40 Sunshine Cottage Rd, Valhalla, NY 10595, United States
| | - Helmut Greim
- Technical University of Munich, Arcisstraße 21, 80333 München, Germany
| | - Gerhard Eisenbrand
- University of Kaiserslautern, Erwin-Schrödinger-Straße 52, 67663 Kaiserslautern, Germany (Retired)
| | - Wolfgang Dekant
- Department of Pharmacology and Toxicology of the University of Würzburg, Sanderring 2, 97070 Würzburg, Germany
| | - Anne Marie Api
- Research Institute for Fragrance Materials, Inc., 50 Tice Blvd, Woodcliff Lake, NJ 07677, United States
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Testing Strategies of the In Vitro Micronucleus Assay for the Genotoxicity Assessment of Nanomaterials in BEAS-2B Cells. NANOMATERIALS 2021; 11:nano11081929. [PMID: 34443765 PMCID: PMC8399994 DOI: 10.3390/nano11081929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/23/2021] [Accepted: 07/25/2021] [Indexed: 12/16/2022]
Abstract
The evaluation of the frequency of micronuclei (MN) is a broadly utilised approach in in vitro toxicity testing. Nevertheless, the specific properties of nanomaterials (NMs) give rise to concerns regarding the optimal methodological variants of the MN assay. In bronchial epithelial cells (BEAS-2B), we tested the genotoxicity of five types of NMs (TiO2: NM101, NM103; SiO2: NM200; Ag: NM300K, NM302) using four variants of MN protocols, differing in the time of exposure and the application of cytochalasin-B combined with the simultaneous and delayed co-treatment with NMs. Using transmission electron microscopy, we evaluated the impact of cytochalasin-B on the transport of NMs into the cells. To assess the behaviour of NMs in a culture media for individual testing conditions, we used dynamic light scattering measurement. The presence of NMs in the cells, their intracellular aggregation and dispersion properties were comparable when tests with or without cytochalasin-B were performed. The genotoxic potential of various TiO2 and Ag particles differed (NM101 < NM103 and NM302 < NM300K, respectively). The application of cytochalasin-B tended to increase the percentage of aberrant cells. In conclusion, the comparison of the testing strategies revealed that the level of DNA damage induced by NMs is affected by the selected methodological approach. This fact should be considered in the interpretation of the results of genotoxicity tests.
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Pelclova D, Zdimal V, Komarc M, Schwarz J, Ondracek J, Ondrackova L, Kostejn M, Vlckova S, Fenclova Z, Dvorackova S, Lischkova L, Klusackova P, Kolesnikova V, Rossnerova A, Navratil T. Three-Year Study of Markers of Oxidative Stress in Exhaled Breath Condensate in Workers Producing Nanocomposites, Extended by Plasma and Urine Analysis in Last Two Years. NANOMATERIALS 2020; 10:nano10122440. [PMID: 33291323 PMCID: PMC7762143 DOI: 10.3390/nano10122440] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 12/02/2020] [Accepted: 12/03/2020] [Indexed: 12/16/2022]
Abstract
Human data concerning exposure to nanoparticles are very limited, and biomarkers for monitoring exposure are urgently needed. In a follow-up of a 2016 study in a nanocomposites plant, in which only exhaled breath condensate (EBC) was examined, eight markers of oxidative stress were analyzed in three bodily fluids, i.e., EBC, plasma and urine, in both pre-shift and post-shift samples in 2017 and 2018. Aerosol exposures were monitored. Mass concentration in 2017 was 0.351 mg/m3 during machining, and 0.179 and 0.217 mg/m3 during machining and welding, respectively, in 2018. In number concentrations, nanoparticles formed 96%, 90% and 59%, respectively. In both years, pre-shift elevations of 50.0% in EBC, 37.5% in plasma and 6.25% in urine biomarkers were observed. Post-shift elevation reached 62.5% in EBC, 68.8% in plasma and 18.8% in urine samples. The same trend was observed in all biological fluids. Individual factors were responsible for the elevation of control subjects' afternoon vs. morning markers in 2018; all were significantly lower compared to those of workers. Malondialdehyde levels were always acutely shifted, and 8-hydroxy-2-deoxyguanosine levels best showed chronic exposure effect. EBC and plasma analysis appear to be the ideal fluids for bio-monitoring of oxidative stress arising from engineered nanomaterials. Potential late effects need to be targeted and prevented, as there is a similarity of EBC findings in patients with silicosis and asbestosis.
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Affiliation(s)
- Daniela Pelclova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti, 128 00 Prague, Czech Republic; (S.V.); (Z.F.); (L.L.); (P.K.); (V.K.)
- Correspondence: ; Tel.: +420-224-964-532
| | - Vladimir Zdimal
- Institute of Chemical Process Fundamentals CAS, Rozvojova 1/135, 165 02 Prague, Czech Republic; (V.Z.); (J.S.); (J.O.); (L.O.); (M.K.)
| | - Martin Komarc
- Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Salmovska, 120 00 Prague, Czech Republic; or
- Faculty of Physical Education and Sport, Charles University and General University Hospital in Prague, José Martího 31, 162 52 Prague, Czech Republic
| | - Jaroslav Schwarz
- Institute of Chemical Process Fundamentals CAS, Rozvojova 1/135, 165 02 Prague, Czech Republic; (V.Z.); (J.S.); (J.O.); (L.O.); (M.K.)
| | - Jakub Ondracek
- Institute of Chemical Process Fundamentals CAS, Rozvojova 1/135, 165 02 Prague, Czech Republic; (V.Z.); (J.S.); (J.O.); (L.O.); (M.K.)
| | - Lucie Ondrackova
- Institute of Chemical Process Fundamentals CAS, Rozvojova 1/135, 165 02 Prague, Czech Republic; (V.Z.); (J.S.); (J.O.); (L.O.); (M.K.)
| | - Martin Kostejn
- Institute of Chemical Process Fundamentals CAS, Rozvojova 1/135, 165 02 Prague, Czech Republic; (V.Z.); (J.S.); (J.O.); (L.O.); (M.K.)
| | - Stepanka Vlckova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti, 128 00 Prague, Czech Republic; (S.V.); (Z.F.); (L.L.); (P.K.); (V.K.)
| | - Zdenka Fenclova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti, 128 00 Prague, Czech Republic; (S.V.); (Z.F.); (L.L.); (P.K.); (V.K.)
| | - Stepanka Dvorackova
- Department of Machining and Assembly, Department of Engineering Technology, Department of Material Science, Faculty of Mechanical Engineering, Technical University in Liberec, Studentska 1402/2, 461 17 Liberec, Czech Republic;
| | - Lucie Lischkova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti, 128 00 Prague, Czech Republic; (S.V.); (Z.F.); (L.L.); (P.K.); (V.K.)
| | - Pavlina Klusackova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti, 128 00 Prague, Czech Republic; (S.V.); (Z.F.); (L.L.); (P.K.); (V.K.)
| | - Viktoriia Kolesnikova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti, 128 00 Prague, Czech Republic; (S.V.); (Z.F.); (L.L.); (P.K.); (V.K.)
| | - Andrea Rossnerova
- Department of Genetic Toxicology and Epigenetics, Institute of Experimental Medicine CAS, Videnska 1083, 142 20 Prague, Czech Republic;
| | - Tomas Navratil
- J. Heyrovský Institute of Physical Chemistry CAS, Dolejškova, 182 23 Prague, Czech Republic;
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Pelclová D, Navrátil T, Fenclová Z, Vlčková Š. Markers of oxidative stress after three days of nanoTiO 2 sunscreen use in humans: a pilot study. Cent Eur J Public Health 2020; 28 Suppl:S17-S21. [PMID: 33069176 DOI: 10.21101/cejph.a6158] [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: 02/26/2020] [Accepted: 05/12/2020] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Recent experimental studies point to a high reactivity of nanoparticles and the potential of sunscreens to penetrate the skin. We measured 20 markers of oxidative stress and inflammation to find out whether skin exposure to nanoTiO2 sunscreen may elevate the level of the markers in exhaled breath condensate (EBC) and urine of exposed subjects, as was suggested by our earlier study. METHODS Six volunteers (3 males and 3 females), with a mean age of 48.0 ± 6.7 years, used commercial sunscreen for three days continuously. The first samples were collected before the test. The second samples were collected on day 4, before the sunscreen was washed off, and the third samples on day 11. The following biomarkers were measured: malondialdehyde, 4-hydroxy-trans-hexenal, 4-hydroxy-trans-nonenal, aldehydes C6-C12, 8-isoProstaglandin F2α, o-tyrosine, 3-chlorotyrosine, 3-nitrotyrosine, 8-hydroxy-2-deoxyguanosine, 8-hydroxyguanosine, 5-hydroxymethyl uracil, and leukotrienes B4, C4, D4, and E4, using liquid chromatography-electrospray ionisation-tandem mass spectrometry. RESULTS In the urine, 4-hydroxy-trans-hexenal was significantly higher in post-exposure sample 2, and the same trend was seen in all urinary markers. In EBC, no difference was seen between the mean values of 20 post-test markers as compared with pre-test samples. CONCLUSION This study suggests potential side effects of the sunscreen - borderline elevation of markers of oxidative stress/inflammation - which may relate to the absorption of the nanoTiO2, and the non-significant difference may be explained by the small number of subjects. The effect was not seen in EBC, where nanoTiO2 was not found. A larger study is needed, as according to our previous study, the beneficial effect of the sunscreen to suppress oxidative stress caused by UV radiation may be questioned.
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Affiliation(s)
- Daniela Pelclová
- Department of Occupational Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Tomáš Navrátil
- J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Zdenka Fenclová
- Department of Occupational Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Štěpánka Vlčková
- Department of Occupational Medicine, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
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7
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Rossnerova A, Honkova K, Pelclova D, Zdimal V, Hubacek JA, Chvojkova I, Vrbova K, Rossner P, Topinka J, Vlckova S, Fenclova Z, Lischkova L, Klusackova P, Schwarz J, Ondracek J, Ondrackova L, Kostejn M, Klema J, Dvorackova S. DNA Methylation Profiles in a Group of Workers Occupationally Exposed to Nanoparticles. Int J Mol Sci 2020; 21:E2420. [PMID: 32244494 PMCID: PMC7177382 DOI: 10.3390/ijms21072420] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 03/27/2020] [Accepted: 03/30/2020] [Indexed: 02/07/2023] Open
Abstract
The risk of exposure to nanoparticles (NPs) has rapidly increased during the last decade due to the vast use of nanomaterials (NMs) in many areas of human life. Despite this fact, human biomonitoring studies focused on the effect of NP exposure on DNA alterations are still rare. Furthermore, there are virtually no epigenetic data available. In this study, we investigated global and gene-specific DNA methylation profiles in a group of 20 long-term (mean 14.5 years) exposed, nanocomposite, research workers and in 20 controls. Both groups were sampled twice/day (pre-shift and post-shift) in September 2018. We applied Infinium Methylation Assay, using the Infinium MethylationEPIC BeadChips with more than 850,000 CpG loci, for identification of the DNA methylation pattern in the studied groups. Aerosol exposure monitoring, including two nanosized fractions, was also performed as proof of acute NP exposure. The obtained array data showed significant differences in methylation between the exposed and control groups related to long-term exposure, specifically 341 CpG loci were hypomethylated and 364 hypermethylated. The most significant CpG differences were mainly detected in genes involved in lipid metabolism, the immune system, lung functions, signaling pathways, cancer development and xenobiotic detoxification. In contrast, short-term acute NP exposure was not accompanied by DNA methylation changes. In summary, long-term (years) exposure to NP is associated with DNA epigenetic alterations.
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Affiliation(s)
- Andrea Rossnerova
- Department of Genetic Toxicology and Epigenetics, Institute of Experimental Medicine CAS, Videnska 1083, 142 20 Prague 4, Czech Republic; (K.H.); (I.C.); (J.T.)
| | - Katerina Honkova
- Department of Genetic Toxicology and Epigenetics, Institute of Experimental Medicine CAS, Videnska 1083, 142 20 Prague 4, Czech Republic; (K.H.); (I.C.); (J.T.)
| | - Daniela Pelclova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti 1, 120 00 Prague 2, Czech Republic; (D.P.); (S.V.); (Z.F.); (L.L.); (P.K.)
| | - Vladimir Zdimal
- Laboratory of Aerosol Chemistry and Physics, Institute of Chemical Process Fundamentals CAS, Rozvojova 1, 165 02 Prague 6, Czech Republic; (V.Z.); (J.S.); (J.O.); (L.O.); (M.K.)
| | - Jaroslav A. Hubacek
- Center for Experimental Medicine, Institute for Clinical and Experimental Medicine, Videnska 1958/9, 140 21 Prague 4, Czech Republic;
| | - Irena Chvojkova
- Department of Genetic Toxicology and Epigenetics, Institute of Experimental Medicine CAS, Videnska 1083, 142 20 Prague 4, Czech Republic; (K.H.); (I.C.); (J.T.)
| | - Kristyna Vrbova
- Department of Nanotoxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, Videnska 1083, 142 20 Prague 4, Czech Republic; (K.V.); (P.R.)
| | - Pavel Rossner
- Department of Nanotoxicology and Molecular Epidemiology, Institute of Experimental Medicine CAS, Videnska 1083, 142 20 Prague 4, Czech Republic; (K.V.); (P.R.)
| | - Jan Topinka
- Department of Genetic Toxicology and Epigenetics, Institute of Experimental Medicine CAS, Videnska 1083, 142 20 Prague 4, Czech Republic; (K.H.); (I.C.); (J.T.)
| | - Stepanka Vlckova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti 1, 120 00 Prague 2, Czech Republic; (D.P.); (S.V.); (Z.F.); (L.L.); (P.K.)
| | - Zdenka Fenclova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti 1, 120 00 Prague 2, Czech Republic; (D.P.); (S.V.); (Z.F.); (L.L.); (P.K.)
| | - Lucie Lischkova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti 1, 120 00 Prague 2, Czech Republic; (D.P.); (S.V.); (Z.F.); (L.L.); (P.K.)
| | - Pavlina Klusackova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti 1, 120 00 Prague 2, Czech Republic; (D.P.); (S.V.); (Z.F.); (L.L.); (P.K.)
| | - Jaroslav Schwarz
- Laboratory of Aerosol Chemistry and Physics, Institute of Chemical Process Fundamentals CAS, Rozvojova 1, 165 02 Prague 6, Czech Republic; (V.Z.); (J.S.); (J.O.); (L.O.); (M.K.)
| | - Jakub Ondracek
- Laboratory of Aerosol Chemistry and Physics, Institute of Chemical Process Fundamentals CAS, Rozvojova 1, 165 02 Prague 6, Czech Republic; (V.Z.); (J.S.); (J.O.); (L.O.); (M.K.)
| | - Lucie Ondrackova
- Laboratory of Aerosol Chemistry and Physics, Institute of Chemical Process Fundamentals CAS, Rozvojova 1, 165 02 Prague 6, Czech Republic; (V.Z.); (J.S.); (J.O.); (L.O.); (M.K.)
| | - Martin Kostejn
- Laboratory of Aerosol Chemistry and Physics, Institute of Chemical Process Fundamentals CAS, Rozvojova 1, 165 02 Prague 6, Czech Republic; (V.Z.); (J.S.); (J.O.); (L.O.); (M.K.)
| | - Jiri Klema
- Department of Computer Science, Czech Technical University in Prague, Karlovo namesti 13, 121 35 Prague 2, Czech Republic;
| | - Stepanka Dvorackova
- Department of Machining and Assembly, Department of Engineering Technology, Department of Material Science, Faculty of Mechanical Engineering, Technical University in Liberec, Studentska 1402/2 Liberec, Czech Republic;
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