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Huang L, Sun G, Xu W, Li S, Qin X, An Q, Wang Z, Li J. Uranium uptake is mediated markedly by clathrin-mediated endocytosis and induce dose-dependent toxicity in HK-2 cells. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023:104171. [PMID: 37295740 DOI: 10.1016/j.etap.2023.104171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 05/17/2023] [Accepted: 06/05/2023] [Indexed: 06/12/2023]
Abstract
The objective of this study was to explore the endocytosis mechanisms of uranium uptake in HK-2 cells and its toxic effects. Our results demonstrated that uranium exposure impairs redox homeostasis and increases the permeability of the cell membrane and mitochondrial membrane, which may induce cell apoptosis by cytochrome-c leakage. Alkaline phosphatase activity increased after uranium exposure, which may be involved in the process of intracellular mineralisation of uranium, leading to severe cell necrosis. Furthermore, our findings demonstrated that the clathrin-mediated endocytosis process contributed substantially to uranium uptake in HK-2 cells and the total uranium uptake was highly correlated with cell viability, reaching a high correlation coefficient (r= -0.853) according to Pearson correlation analysis. In conclusion, the uptake of uranium into mammalian cells was mainly facilitated by the clathrin-mediated endocytosis pathway and induced dose-dependent cellular toxicity, including redox homeostasis imbalance, membrane injury, cell apoptosis and necrosis.
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Affiliation(s)
- Liqun Huang
- China Institute for Radiation Protection, Taiyuan 030006, China
| | - Ge Sun
- China Institute for Radiation Protection, Taiyuan 030006, China
| | - Wenli Xu
- China Institute for Radiation Protection, Taiyuan 030006, China
| | - Shufang Li
- China Institute for Radiation Protection, Taiyuan 030006, China
| | - Xiujun Qin
- China Institute for Radiation Protection, Taiyuan 030006, China
| | - Quan An
- China Institute for Radiation Protection, Taiyuan 030006, China
| | - Zhongwen Wang
- Department of Radiation Safety, China Institute of Atomic Energy, Beijing 102413, China
| | - Jianguo Li
- China Institute for Radiation Protection, Taiyuan 030006, China
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2
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Li Y, Huang T, Liu X, Chen Z, Yang H, Wang X. Sorption-catalytic reduction/extraction of hexavalent Cr(VI) and U(VI) by porous frameworks materials. Sep Purif Technol 2023; 314:123615. [DOI: doi.org/10.1016/j.seppur.2023.123615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2023]
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3
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Li Y, Huang T, Liu X, Chen Z, Yang H, Wang X. Sorption-catalytic reduction/extraction of hexavalent Cr(VI) and U(VI) by porous frameworks materials. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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4
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Huang L, Li S, Zhou W, Gao J, Yin J, Wang Z, Li J. Cellular transport of uranium and its cytotoxicity effects on CHO-k1 cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 246:114166. [PMID: 36228352 DOI: 10.1016/j.ecoenv.2022.114166] [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: 06/30/2022] [Revised: 09/21/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Uranium is a radioactive heavy metal and a significant public health concern; however, its associated underlying toxicological mechanisms remain largely unknown. In this work, the uptake and efflux processes of uranium in CHO-k1 cells were studied and the cytotoxicity effects were explored. It was found that both the uptake and efflux processes took place rapidly and half of the internalized uranium was expelled within 8 h. The uranium exposure caused a decrease of cell viability and adhesion ability in a dose-dependent manner and blocked the cell cycle at the G1 stage. In addition, gene expression analysis revealed relative changes in the transcription of metabolism related genes. Further studies revealed that the cytotoxicity of uranium could be alleviated by exposing cells to a lower temperature or by the addition of amantadine-HCl, an endocytosis inhibitor. Interestingly, after uranium exposure, needle-like precipitates were observed in both intracellular and extracellular regions. These findings collectively suggest that the cellular transport of uranium is a rapid process that disturbs cell metabolism and induces cytotoxicity, and this impact could be reduced by slowing down endocytic processes.
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Affiliation(s)
- Liqun Huang
- China Institute for Radiation Protection, Taiyuan 030006, China; Department of Radiation Safety, China Institute of Atomic Energy, Beijing 102413, China
| | - Shufang Li
- China Institute for Radiation Protection, Taiyuan 030006, China
| | - Wenhua Zhou
- China Institute for Radiation Protection, Taiyuan 030006, China
| | - Jie Gao
- China Institute for Radiation Protection, Taiyuan 030006, China
| | - Jingjing Yin
- China Institute for Radiation Protection, Taiyuan 030006, China
| | - Zhongwen Wang
- Department of Radiation Safety, China Institute of Atomic Energy, Beijing 102413, China
| | - Jianguo Li
- China Institute for Radiation Protection, Taiyuan 030006, China.
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5
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Schilz JR, Dashner-Titus EJ, Simmons KA, Erdei E, Bolt AM, MacKenzie DA, Hudson LG. The immunotoxicity of natural and depleted uranium: From cells to people. Toxicol Appl Pharmacol 2022; 454:116252. [PMID: 36152676 PMCID: PMC10044422 DOI: 10.1016/j.taap.2022.116252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/30/2022] [Accepted: 09/16/2022] [Indexed: 10/31/2022]
Abstract
Uranium is a naturally occurring element found in the environment as a mixture of isotopes with differing radioactive properties. Enrichment of mined material results in depleted uranium waste with substantially reduced radioactivity but retains the capacity for chemical toxicity. Uranium mine and milling waste are dispersed by wind and rain leading to environmental exposures through soil, air, and water contamination. Uranium exposure is associated with numerous adverse health outcomes in humans, yet there is limited understanding of the effects of depleted uranium on the immune system. The purpose of this review is to summarize findings on uranium immunotoxicity obtained from cell, rodent and human population studies. We also highlight how each model contributes to an understanding of mechanisms that lead to immunotoxicity and limitations inherent within each system. Information from population, animal, and laboratory studies will be needed to significantly expand our knowledge of the contributions of depleted uranium to immune dysregulation, which may then inform prevention or intervention measures for exposed communities.
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Affiliation(s)
- Jodi R Schilz
- Division of Physical Therapy, School of Medicine, University of New Mexico, Albuquerque, NM, United States of America.
| | - Erica J Dashner-Titus
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, United States of America
| | - Karen A Simmons
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, United States of America
| | - Esther Erdei
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, United States of America
| | - Alicia M Bolt
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, United States of America
| | - Debra A MacKenzie
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, United States of America
| | - Laurie G Hudson
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, United States of America
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Schilling K, Harris AL, Halliday AN, Schofield CJ, Sheldon H, Haider S, Larner F. Investigations on Zinc Isotope Fractionation in Breast Cancer Tissue Using in vitro Cell Culture Uptake-Efflux Experiments. Front Med (Lausanne) 2022; 8:746532. [PMID: 35127740 PMCID: PMC8811157 DOI: 10.3389/fmed.2021.746532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 12/14/2021] [Indexed: 12/24/2022] Open
Abstract
Zinc (Zn) accumulates in breast cancer tumors compared to adjacent healthy tissue. Clinical samples of breast cancer tissue show light Zn isotopic compositions (δ66Zn) relative to healthy tissue. The underlying mechanisms causing such effects are unknown. To investigate if the isotopic discrimination observed for in vivo breast cancer tissue samples can be reproduced in vitro, we report isotopic data for Zn uptake-efflux experiments using a human breast cancer cell line. MDA-MB-231 cell line was used as a model for triple receptor negative breast cancer. We determined Zn isotope fractionation for Zn cell uptake (Δ66Znuptake) and cell efflux (Δ66Znefflux) using a drip-flow reactor to enable comparison with the in vivo environment. The MDA-MB-231 cell line analyses show Zn isotopic fractionations in an opposite direction to those observed for in vivo breast cancer tissue. Uptake of isotopically heavy Zn (Δ66Znuptake = +0.23 ± 0.05‰) is consistent with transport via Zn transporters (ZIPs), which have histidine-rich binding sites. Zinc excreted during efflux is isotopically lighter than Zn taken up by the cells (Δ66Znefflux = -0.35 ± 0.06‰). The difference in Zn isotope fractionation observed between in vitro MDA-MB-231 cell line experiments and in vivo breast tissues might be due to differences in Zn transporter levels or intercellular Zn storage (endoplasmic reticulum and/or Zn specific vesicles); stromal cells, such as fibroblasts and immune cells. Although, additional experiments using other human breast cancer cell lines (e.g., MCF-7, BT-20) with varying Zn protein characteristics are required, the results highlight differences between in vitro and in vivo Zn isotope fractionation.
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Affiliation(s)
- Kathrin Schilling
- Lamont Doherty Earth Observatory, Columbia University, Palisades, NY, United States
- Department of Medical Oncology, Molecular Oncology Laboratories, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- Department of Earth Sciences, University of Oxford, Oxford, United Kingdom
| | - Adrian L. Harris
- Department of Medical Oncology, Molecular Oncology Laboratories, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Alex N. Halliday
- Lamont Doherty Earth Observatory, Columbia University, Palisades, NY, United States
- Department of Earth Sciences, University of Oxford, Oxford, United Kingdom
| | | | - Helen Sheldon
- Department of Medical Oncology, Molecular Oncology Laboratories, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Syed Haider
- The Breast Cancer Now Toby Robins Breast Cancer Research Centre, The Institute of Cancer Research, London, United Kingdom
| | - Fiona Larner
- Department of Medical Oncology, Molecular Oncology Laboratories, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- Department of Earth Sciences, University of Oxford, Oxford, United Kingdom
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Zhang S, Wang J, Zhang Y, Ma J, Huang L, Yu S, Chen L, Song G, Qiu M, Wang X. Applications of water-stable metal-organic frameworks in the removal of water pollutants: A review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 291:118076. [PMID: 34534824 DOI: 10.1016/j.envpol.2021.118076] [Citation(s) in RCA: 158] [Impact Index Per Article: 52.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 08/23/2021] [Accepted: 08/29/2021] [Indexed: 05/18/2023]
Abstract
Because the pollutants produced by human activities have destroyed the ecological balance of natural water environment, and caused severe impact on human life safety and environmental security. Hence the task of water environment restoration is imminent. Metal-organic frameworks (MOFs), structured from organic ligands and inorganic metal ions, are notable for their outstanding crystallinity, diverse structures, large surface areas, adsorption performance, and excellent component tunability. The water stability of MOFs is a key requisite for their possible actual applications in separation, catalysis, adsorption, and other water environment remediation areas because it is necessary to safeguard the integrity of the material structure during utilization. In this article, we comprehensively review state-of-the-art research progress on the promising potential of MOFs as excellent nanomaterials to remove contaminants from the water environment. Firstly, the fundamental characteristics and preparation methods of several typical water-stable MOFs include UiO, MIL, and ZIF are introduced. Then, the removal property and mechanism of heavy metal ions, radionuclide contaminants, drugs, and organic dyes by different MOFs were compared. Finally, the application prospect of MOFs in pollutant remediation prospected. In this review, the synthesis methods and application in water pollutant removal are explored, which provide ways toward the effective use of water-stable MOFs in materials design and environmental remediation.
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Affiliation(s)
- Shu Zhang
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, PR China
| | - Jiaqi Wang
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, PR China
| | - Yue Zhang
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, PR China
| | - Junzhou Ma
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, PR China
| | - Lintianyang Huang
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, PR China
| | - Shujun Yu
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, PR China
| | - Lan Chen
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, PR China
| | - Gang Song
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Muqing Qiu
- School of Life Science, Shaoxing University, Shaoxing, 312000, PR China
| | - Xiangxue Wang
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding, 071003, PR China; Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang, 621010, China.
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8
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Ma M, Wang R, Xu L, Xu M, Liu S. Emerging health risks and underlying toxicological mechanisms of uranium contamination: Lessons from the past two decades. ENVIRONMENT INTERNATIONAL 2020; 145:106107. [PMID: 32932066 DOI: 10.1016/j.envint.2020.106107] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 08/28/2020] [Accepted: 08/30/2020] [Indexed: 06/11/2023]
Abstract
Uranium contamination is a global health concern. Regarding natural or anthropogenic uranium contamination, the major sources of concern are groundwater, mining, phosphate fertilizers, nuclear facilities, and military activities. Many epidemiological and laboratory studies have demonstrated that environmental and occupational uranium exposure can induce multifarious health problems. Uranium exposure may cause health risks because of its chemotoxicity and radiotoxicity in natural or anthropogenic scenarios: the former is generally thought to play a more significant role with regard to the natural uranium exposure, and the latter is more relevant to enriched uranium exposure. The understanding of the health risks and underlying toxicological mechanisms of uranium remains at a preliminary stage, and many controversial findings require further research. In order to present state-of-the-art status in this field, this review will primarily focus on the chemotoxicity of uranium, rather than its radiotoxicity, as well as the involved toxicological mechanisms. First, the natural or anthropogenic uranium contamination scenarios will be briefly summarized. Second, the health risks upon natural uranium exposure, for example, nephrotoxicity, bone toxicity, reproductive toxicity, hepatotoxicity, neurotoxicity, and pulmonary toxicity, will be discussed based on the reported epidemiological cases and laboratory studies. Third, the recent advances regarding the toxicological mechanisms of uranium-induced chemotoxicity will be highlighted, including oxidative stress, genetic damage, protein impairment, inflammation, and metabolic disorder. Finally, the gaps and challenges in the knowledge of uranium-induced chemotoxicity and underlying mechanisms will be discussed.
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Affiliation(s)
- Minghao Ma
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ruixia Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lining Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ming Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
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9
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Carmona A, Porcaro F, Somogyi A, Roudeau S, Domart F, Medjoubi K, Aubert M, Isnard H, Nonell A, Rincel A, Paredes E, Vidaud C, Malard V, Bresson C, Ortega R. Cytoplasmic aggregation of uranium in human dopaminergic cells after continuous exposure to soluble uranyl at non-cytotoxic concentrations. Neurotoxicology 2020; 82:35-44. [PMID: 33166614 DOI: 10.1016/j.neuro.2020.10.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/30/2020] [Accepted: 10/30/2020] [Indexed: 11/24/2022]
Abstract
Uranium exposure can lead to neurobehavioral alterations in particular of the monoaminergic system, even at non-cytotoxic concentrations. However, the mechanisms of uranium neurotoxicity after non-cytotoxic exposure are still poorly understood. In particular, imaging uranium in neurons at low intracellular concentration is still very challenging. We investigated uranium intracellular localization by means of synchrotron X-ray fluorescence imaging with high spatial resolution (< 300 nm) and high analytical sensitivity (< 1 μg.g-1 per 300 nm pixel). Neuron-like SH-SY5Y human cells differentiated into a dopaminergic phenotype were continuously exposed, for seven days, to a non-cytotoxic concentration (10 μM) of soluble natural uranyl. Cytoplasmic submicron uranium aggregates were observed accounting on average for 62 % of the intracellular uranium content. In some aggregates, uranium and iron were co-localized suggesting common metabolic pathways between uranium and iron storage. Uranium aggregates contained no calcium or phosphorous indicating that detoxification mechanisms in neuron-like cells are different from those described in bone or kidney cells. Uranium intracellular distribution was compared to fluorescently labeled organelles (lysosomes, early and late endosomes) and to fetuin-A, a high affinity uranium-binding protein. A strict correlation could not be evidenced between uranium and the labeled organelles, or with vesicles containing fetuin-A. Our results indicate a new mechanism of uranium cytoplasmic aggregation after non-cytotoxic uranyl exposure that could be involved in neuronal defense through uranium sequestration into less reactive species. The remaining soluble fraction of uranium would be responsible for protein binding and for the resulting neurotoxic effects.
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Affiliation(s)
- Asuncion Carmona
- Univ. Bordeaux, CNRS, CENBG, UMR 5797, F-33170 Gradignan, France.
| | | | - Andrea Somogyi
- Nanoscopium, Synchrotron SOLEIL Saint-Aubin, Gif-sur-Yvette Cedex, France
| | - Stéphane Roudeau
- Univ. Bordeaux, CNRS, CENBG, UMR 5797, F-33170 Gradignan, France
| | - Florelle Domart
- Univ. Bordeaux, CNRS, CENBG, UMR 5797, F-33170 Gradignan, France
| | - Kadda Medjoubi
- Nanoscopium, Synchrotron SOLEIL Saint-Aubin, Gif-sur-Yvette Cedex, France
| | - Michel Aubert
- Université Paris-Saclay, CEA, Service d'Etudes Analytiques Et De Réactivité Des Surfaces, 91191 Gif-sur-Yvette, France
| | - Hélène Isnard
- Université Paris-Saclay, CEA, Service d'Etudes Analytiques Et De Réactivité Des Surfaces, 91191 Gif-sur-Yvette, France
| | - Anthony Nonell
- Université Paris-Saclay, CEA, Service d'Etudes Analytiques Et De Réactivité Des Surfaces, 91191 Gif-sur-Yvette, France
| | - Anaïs Rincel
- Université Paris-Saclay, CEA, Service d'Etudes Analytiques Et De Réactivité Des Surfaces, 91191 Gif-sur-Yvette, France
| | - Eduardo Paredes
- Université Paris-Saclay, CEA, Service d'Etudes Analytiques Et De Réactivité Des Surfaces, 91191 Gif-sur-Yvette, France
| | - Claude Vidaud
- CEA, BIAM, Institut de Biosciences et Biotechnologies d'Aix-Marseille, CEA-Marcoule, 30207 Bagnols Sur Cèze, France
| | - Véronique Malard
- Aix Marseille Univ., CEA, CNRS, BIAM, IPM, Saint Paul-Lez-Durance F-13108, France
| | - Carole Bresson
- Université Paris-Saclay, CEA, Service d'Etudes Analytiques Et De Réactivité Des Surfaces, 91191 Gif-sur-Yvette, France
| | - Richard Ortega
- Univ. Bordeaux, CNRS, CENBG, UMR 5797, F-33170 Gradignan, France.
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10
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Van der Meeren A, Drouet G, Devilliers K, Laurent D, Moureau A, Feray A, Lamart S. Evidence for a differential translocation of actinides across human lung epithelial cell monolayer in vitro according to their physicochemical properties and the presence of a chelating agent. Toxicol In Vitro 2020; 70:105035. [PMID: 33132172 DOI: 10.1016/j.tiv.2020.105035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/16/2020] [Accepted: 10/20/2020] [Indexed: 10/23/2022]
Abstract
The epithelial cell plays a key role in the transfer of radionuclides from lungs to blood following pulmonary exposure. The present study was designed to evaluate the transfer across human lung epithelial cells of various actinides (plutonium, americium and uranium), the influence of the physicochemical properties of plutonium compounds and of the chelating agent diethylene triamine pentaacetic acid (DTPA). To address this question, Calu-3 cells grown in a bicameral culture system were used. The integrity of the epithelial barrier was evaluated by measuring transepithelial electrical resistance (TEER) and the passage of a fluorescent marker, lucifer yellow. Activity measurement in basal compartment following periodic collection of culture medium was made from 2 h to seven days. To facilitate data handling and analysis, the statistical tool STATBIODIS was used. The results indicate differences in transfer for the different elements, and according to Pu physicochemical properties. Though to various extents, the chelating agent DTPA always increased the transfer of Pu and Am across the epithelial cells, without altering the integrity of the epithelial barrier. This in vitro cell culture model, by mimicking translocation of actinides from lungs to blood, can represent a valuable tool to further understand the underlying mechanisms and properties controlling this process.
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Affiliation(s)
- A Van der Meeren
- Laboratory of Radio Toxicology, CEA, Paris-Saclay University, 91297 Arpajon, France.
| | - G Drouet
- Laboratory of Radio Toxicology, CEA, Paris-Saclay University, 91297 Arpajon, France
| | - K Devilliers
- Laboratory of Radio Toxicology, CEA, Paris-Saclay University, 91297 Arpajon, France
| | - D Laurent
- Laboratory of Radio Toxicology, CEA, Paris-Saclay University, 91297 Arpajon, France
| | - A Moureau
- Laboratory of Radio Toxicology, CEA, Paris-Saclay University, 91297 Arpajon, France
| | - A Feray
- Paris-Saclay University, Inserm, Inflammation, Microbiome and Immunosurveillance, 92290 Châtenay-Malabry, France
| | - S Lamart
- Laboratory of Radio Toxicology, CEA, Paris-Saclay University, 91297 Arpajon, France
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11
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Reiller PE, Descostes M. Development and application of the thermodynamic database PRODATA dedicated to the monitoring of mining activities from exploration to remediation. CHEMOSPHERE 2020; 251:126301. [PMID: 32145577 DOI: 10.1016/j.chemosphere.2020.126301] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 11/19/2019] [Accepted: 02/20/2020] [Indexed: 06/10/2023]
Abstract
A growing demand exists on the monitoring of both uranium mining activities and their environmental impacts. In order to help understanding and modelling both these aspects, a thermodynamic database dedicated to uranium mining activities is developed: the PRODATA database. Relevant species and phases for uranium and radium are chosen from existing compilations of data, complemented with important missing data for the application to mining activities and environmental monitoring. Important major anions and cations chemistry are included, as well as secondary pollutants such as arsenic, lead, or nickel. Applications of the PRODATA extracted database file for PhreeqC to theoretical speciation calculations of uranium and radium for actual water compositions - either linked to uranium mining activities, or under monitoring for environmental survey - are presented. Wider applications to other available water compositions from different geochemical concepts are also tested. For the tested cases, the major radium and uranium species obtained using PRODATA are compared with other available thermodynamic database (Thermochimie, LLNL, Wateq4f, Minteq, PSI/NAGRA). The choice of the database file - and of the ionic strength correction - can strongly impact the final speciation results. Sulphate complexes of radium and uranium are of particular importance in mining exploitation context, and carbonate uranium complexes - particularly [Formula: see text] complexes - are crucial for environmental monitoring. The latter complexes are key species for the aqueous speciation of uranium, even in reducing environment where U(IV) low solubility usually governs uranium mobility.
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Affiliation(s)
- Pascal E Reiller
- Den - Service D'Études Analytiques et de Réactivité des Surfaces (SEARS), CEA, Université Paris-Saclay, F-91191, Gif-sur-Yvette, France.
| | - Michaël Descostes
- ORANO Group Mining R&D Dpt, 125 Avenue de Paris, F-92320, Châtillon, France
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12
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Costas-Rodríguez M, Colina-Vegas L, Solovyev N, De Wever O, Vanhaecke F. Cellular and sub-cellular Cu isotope fractionation in the human neuroblastoma SH-SY5Y cell line: proliferating versus neuron-like cells. Anal Bioanal Chem 2019; 411:4963-4971. [DOI: 10.1007/s00216-019-01871-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/26/2019] [Accepted: 04/16/2019] [Indexed: 12/29/2022]
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13
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Paredes E, Malard V, Vidaud C, Avazeri E, Ortega R, Nonell A, Isnard H, Chartier F, Bresson C. Isotopic variations of copper at the protein fraction level in neuronal human cells exposed in vitro to uranium. Analyst 2019; 144:5928-5933. [DOI: 10.1039/c9an01081e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Accurate isotope ratio determination was downscaled to the level of metal-containing protein fractions obtained from cell line lysates.
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Affiliation(s)
- Eduardo Paredes
- Den – Service d'Etudes Analytiques et de Réactivité des Surfaces (SEARS)
- CEA
- Université Paris-Saclay
- Gif sur Yvette
- France
| | - Véronique Malard
- CEA
- DRF
- Biosciences and biotechnologies institute (BIAM)
- Bagnols-sur-Cèze
- France
| | - Claude Vidaud
- CEA
- DRF
- Biosciences and biotechnologies institute (BIAM)
- Bagnols-sur-Cèze
- France
| | - Emilie Avazeri
- CEA
- DRF
- Biosciences and biotechnologies institute (BIAM)
- Bagnols-sur-Cèze
- France
| | - Richard Ortega
- University of Bordeaux
- CENBG
- UMR 5797
- F-33170 Gradignan
- France
| | - Anthony Nonell
- Den – Service d'Etudes Analytiques et de Réactivité des Surfaces (SEARS)
- CEA
- Université Paris-Saclay
- Gif sur Yvette
- France
| | - Hélène Isnard
- Den – Service d'Etudes Analytiques et de Réactivité des Surfaces (SEARS)
- CEA
- Université Paris-Saclay
- Gif sur Yvette
- France
| | - Frédéric Chartier
- Den – Département de Physico-Chimie (DPC)
- CEA
- Université Paris-Saclay
- Gif sur Yvette
- France
| | - Carole Bresson
- Den – Service d'Etudes Analytiques et de Réactivité des Surfaces (SEARS)
- CEA
- Université Paris-Saclay
- Gif sur Yvette
- France
| |
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