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Tarafdar A, Xie J, Gowen A, O'Higgins AC, Xu JL. Advanced optical photothermal infrared spectroscopy for comprehensive characterization of microplastics from intravenous fluid delivery systems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172648. [PMID: 38649036 DOI: 10.1016/j.scitotenv.2024.172648] [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: 02/09/2024] [Revised: 03/28/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Abstract
Growing attention is being directed towards exploring the potential harmful effects of microplastic (MP) particles on human health. Previous reports on human exposure to MPs have primarily focused on inhalation, ingestion, transdermal routes, and, potentially, transplacental transfer. The intravenous transfer of MP particles in routine healthcare settings has received limited exploration in existing literature. Standard hospital IV system set up with 0.9 % NaCl in a laminar flow hood with MP contamination precautions. Various volumes of 0.9 % NaCl passed through the system, some with a volumetric pump. Fluid filtered with Anodisc filters washed with isopropyl alcohol. The IV cannula was immersed in Mili-Q water for 72 h to simulate vein conditions. Subsequently, the water was filtered and washed. Optical photothermal infrared (O-PTIR) microspectroscopy is used to examine filters for MP particles. All filters examined from the IV infusion system contained MP particles, including MPs from the polymer materials used in the manufacture of the IV delivery systems (polydimethylsiloxane, polypropylene, polystyrene, and polyvinyl chloride) and MP particles arising from plastic resin additives (epoxy resin, polyamide resin, and polysiloxane-containing MPs). The geometric mean from the extrapolated result data indicated that approximately 0.90 MP particles per mL of 0.9 % NaCl solution can be administered through a conventional IV infusion system in the absence of a volumetric pump. However, with the implementation of a pump, this value may increase to 1.57 particles per mL. Notably, over 72 h, a single cannula was found to release approximately 558 MP particles including polydimethylsiloxane, polysiloxane-containing MPs, polyamide resin, and epoxy resin. Routine IV infusion systems release microplastics. MP particles are also released around IV cannulas, suggesting transfer into the circulatory system during standard IV procedures.
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Affiliation(s)
- Abhrajyoti Tarafdar
- School of Biosystems and Food Engineering, University College Dublin, Belfield, Dublin 4, Ireland
| | - Junhao Xie
- School of Biosystems and Food Engineering, University College Dublin, Belfield, Dublin 4, Ireland
| | - Aoife Gowen
- School of Biosystems and Food Engineering, University College Dublin, Belfield, Dublin 4, Ireland
| | - Amy C O'Higgins
- UCD Centre for Human Reproduction, The Coombe Hospital, Cork Street, Dublin 8, Ireland.
| | - Jun-Li Xu
- School of Biosystems and Food Engineering, University College Dublin, Belfield, Dublin 4, Ireland.
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Jang Y, Nyamjav I, Kim HR, Suh DE, Park N, Lee YE, Lee S. Identification of plastic-degrading bacteria in the human gut. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172775. [PMID: 38670383 DOI: 10.1016/j.scitotenv.2024.172775] [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: 03/04/2024] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024]
Abstract
Environmental pollution caused by the excessive use of plastics has resulted in the inflow of microplastics into the human body. However, the effects of microplastics on the human gut microbiota still need to be better understood. To determine whether plastic-degrading bacteria exist in the human gut, we collected the feces of six human individuals, did enrichment cultures and screened for bacterial species with a low-density polyethylene (LDPE) or polypropylene (PP)-degrading activity using a micro-spray method. We successfully isolated four bacterial species with an LDPE-degrading activity and three with a PP-degrading activity. Notably, all bacterial species identified with an LDPE or PP-degrading activity were opportunistic pathogens. We analyzed the microbial degradation of the LDPE or PP surface using scanning electron microscopy and confirmed that each bacterial species caused the physical changes. Chemical structural changes were further investigated using X-ray photoelectron spectroscopy and Fourier-transform-infrared spectroscopy, confirming the oxidation of the LDPE or PP surface with the formation of carbonyl groups (C=O), ester groups (CO), and hydroxyl groups (-OH) by each bacterial species. Finally, high temperature gel permeation chromatography (HT-GPC) analysis showed that these bacterial species performed to a limited extent depolymerization. These results indicate that, as a single species, these opportunistic pathogens in the human gut have a complete set of enzymes and other components required to initiate the oxidation of the carbon chains of LDPE or PP and to degrade them. Furthermore, these findings suggest that these bacterial species can potentially biodegrade and metabolize microplastics in the human gut.
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Affiliation(s)
- Yejin Jang
- School of Undergraduate Studies, College of Transdisciplinary Studies, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Indra Nyamjav
- Department of Brain Sciences, Graduate School, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Hong Rae Kim
- Department of Research and Development, Repla Inc., Suwon 16679, Republic of Korea
| | - Dong-Eun Suh
- Department of Research and Development, Repla Inc., Suwon 16679, Republic of Korea
| | - Nohyoon Park
- School of Undergraduate Studies, College of Transdisciplinary Studies, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Ye Eun Lee
- Department of Brain Sciences, Graduate School, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Sukkyoo Lee
- Department of Brain Sciences, Graduate School, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea.
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Xu L, Liu C, Ren Y, Huang Y, Liu Y, Feng S, Zhong X, Fu D, Zhou X, Wang J, Liu Y, Yang M. Nanoplastic toxicity induces metabolic shifts in Populus × euramericana cv. '74/76' revealed by multi-omics analysis. JOURNAL OF HAZARDOUS MATERIALS 2024; 470:134148. [PMID: 38565012 DOI: 10.1016/j.jhazmat.2024.134148] [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: 02/03/2024] [Revised: 03/11/2024] [Accepted: 03/26/2024] [Indexed: 04/04/2024]
Abstract
There is increasing global concern regarding the pervasive issue of plastic pollution. We investigated the response of Populus × euramericana cv. '74/76' to nanoplastic toxicity via phenotypic, microanatomical, physiological, transcriptomic, and metabolomic approaches. Polystyrene nanoplastics (PS-NPs) were distributed throughout the test plants after the application of PS-NPs. Nanoplastics principally accumulated in the roots; minimal fractions were translocated to the leaves. In leaves, however, PS-NPs easily penetrated membranes and became concentrated in chloroplasts, causing thylakoid disintegration and chlorophyll degradation. Finally, oxidant damage from the influx of PS-NPs led to diminished photosynthesis, stunted growth, and etiolation and/or wilting. By integrating dual-omics data, we found that plants could counteract mild PS-NP-induced oxidative stress through the antioxidant enzyme system without initiating secondary metabolic defense mechanisms. In contrast, severe PS-NP treatments promoted a shift in metabolic pattern from primary metabolism to secondary metabolic defense mechanisms, an effect that was particularly pronounced during the upregulation of flavonoid biosynthesis. Our findings provide a useful framework from which to further clarify the roles of key biochemical pathways in plant responses to nanoplastic toxicity. Our work also supports the development of effective strategies to mitigate the environmental risks of nanoplastics by biologically immobilizing them in contaminated lands.
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Affiliation(s)
- Liren Xu
- Hebei Agricultural University, Baoding, Hebei 071000, China; Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding, Hebei 071000, China; National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China.
| | - Chong Liu
- Hebei Agricultural University, Baoding, Hebei 071000, China.
| | - Yachao Ren
- Hebei Agricultural University, Baoding, Hebei 071000, China; Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding, Hebei 071000, China.
| | - Yinran Huang
- Hebei Agricultural University, Baoding, Hebei 071000, China.
| | - Yichao Liu
- Hebei Academy of Forestry and Grassland Science, Shijiazhuang, Hebei 050061, China.
| | - Shuxiang Feng
- Hebei Academy of Forestry and Grassland Science, Shijiazhuang, Hebei 050061, China.
| | - Xinyu Zhong
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China.
| | - Donglin Fu
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China.
| | - Xiaohong Zhou
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China.
| | - Jinmao Wang
- Hebei Agricultural University, Baoding, Hebei 071000, China; Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding, Hebei 071000, China.
| | - Yujun Liu
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China.
| | - Minsheng Yang
- Hebei Agricultural University, Baoding, Hebei 071000, China; Hebei Key Laboratory for Tree Genetic Resources and Forest Protection, Baoding, Hebei 071000, China.
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4
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Huang J, Zhang J, Sun J, Gong M, Yuan Z. Exposure to polystyrene microplastics and perfluorooctane sulfonate disrupt the homeostasis of intact planarians and the growth of regenerating planarians. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 924:171653. [PMID: 38485023 DOI: 10.1016/j.scitotenv.2024.171653] [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: 12/25/2023] [Revised: 03/09/2024] [Accepted: 03/09/2024] [Indexed: 03/17/2024]
Abstract
Microplastics (MPs) and perfluorinated compounds (PFAS) are widespread in the global ecosystem. MPs have the ability to adsorb organic contaminants such as perfluorooctane sulfonate (PFOS), leading to combined effects. The current work aims to explore the individual and combined toxicological effects of polystyrene (PS) and PFOS on the growth and nerves of the freshwater planarian (Dugesia japonica). The results showed that PS particles could adsorb PFOS. PS and PFOS impeded the regeneration of decapitated planarians eyespots, whereas the combined treatment increased the locomotor speed of intact planarians. PS and PFOS caused significant DNA damage, while co-treatment with different PS concentrations aggravated and attenuated DNA damage, respectively. Further studies at the molecular level have shown that PS and PFOS affect the proliferation and differentiation of neoblasts in both intact and regenerating planarians, alter the expression levels of neuronal genes, and impede the development of the nervous system. PS and PFOS not only disrupted the homeostasis of intact planarians, but also inhibited the regeneration of decapitated planarians. This study is the first to assess the multiple toxicity of PS and PFOS to planarians after combined exposure. It provides a basis for the environmental and human health risks of MPs and PFAS.
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Affiliation(s)
- Jinying Huang
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Jianyong Zhang
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Jingyi Sun
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Mengxin Gong
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Zuoqing Yuan
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo 255000, Shandong, China.
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5
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Paing YMM, Eom Y, Song GB, Kim B, Choi MG, Hong S, Lee SH. Neurotoxic effects of polystyrene nanoplastics on memory and microglial activation: Insights from in vivo and in vitro studies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 924:171681. [PMID: 38490422 DOI: 10.1016/j.scitotenv.2024.171681] [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: 10/30/2023] [Revised: 03/05/2024] [Accepted: 03/10/2024] [Indexed: 03/17/2024]
Abstract
Nanoplastics, arising from the fragmentation of plastics into environmental pollutants and specialized commercial applications, such as cosmetics, have elicited concerns due to their potential toxicity. Evidence suggests that the oral ingestion of nanoplastics smaller than 100 nm may penetrate the brain and induce neurotoxicity. However, comprehensive research in this area has been hampered by technical challenges associated with the detection and synthesis of nanoplastics. This study aimed to bridge this research gap by successfully synthesizing fluorescent polystyrene nanoplastics (PSNPs, 30-50 nm) through the incorporation of IR-813 and validating them using various analytical techniques. We administered PSNPs orally (10 and 20 mg/kg/day) to mice and observed that they reached brain tissues and induced cognitive dysfunction, as measured by spatial and fear memory tests, while locomotor and social behaviors remained unaffected. In vitro studies (200 μg/mL) demonstrated a predominant uptake of PSNPs by microglia over astrocytes or neurons, leading to microglial activation, as evidenced by immunostaining of cellular markers and morphological analysis. Transcriptomic analysis indicated that PSNPs altered gene expression in microglia, highlighting neuroinflammatory responses that may contribute to cognitive deficits. To further explore the neurotoxic effects of PSNPs mediated by microglial activation, we measured endogenous neuronal activity using a multi-electrode array in cultured hippocampal neurons. The application of conditioned media from microglia exposed to PSNPs suppressed neuronal activity, which was reversed by inhibitors of microglial activation. Our findings offer detailed insights into the mechanisms by which nanoplastics damage the brain, particularly emphasizing the potential environmental risk factors that contribute to cognitive impairment in neurodegenerative diseases.
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Affiliation(s)
- Yunn Me Me Paing
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Yunkyung Eom
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Gyeong Bae Song
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Bokyung Kim
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Myung Gil Choi
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Sungguan Hong
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
| | - Sung Hoon Lee
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea.
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Yang Z, DeLoid GM, Baw J, Zarbl H, Demokritou P. Assessment of Ingested Micro- and Nanoplastic (MNP)-Mediated Genotoxicity in an In Vitro Model of the Small Intestinal Epithelium (SIE). NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:807. [PMID: 38727401 PMCID: PMC11085749 DOI: 10.3390/nano14090807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 04/25/2024] [Accepted: 05/02/2024] [Indexed: 05/12/2024]
Abstract
Micro- and nanoplastics (MNPs) have become ubiquitous contaminants of water and foods, resulting in high levels of human ingestion exposure. MNPs have been found in human blood and multiple tissues, suggesting that they are readily absorbed by the gastrointestinal tract (GIT) and widely distributed. Growing toxicological evidence suggests that ingested MNPs may pose a serious health threat. The potential genotoxicity of MNPs, however, remains largely unknown. In this study, genotoxicity of primary and environmentally relevant secondary MNPs was assessed in a triculture small intestinal epithelium (SIE) model using the CometChip assay. Aqueous suspensions of 25 and 1000 nm carboxylated polystyrene spheres (PS25C and PS1KC), and incinerated polyethylene (PEI PM0.1) were subjected to simulated GIT digestion to create physiologically relevant exposures (digestas), which were applied to the SIE model at final MNP concentrations of 1, 5, and 20 μg/mL for 24 or 48 h. PS25C and PS1KC induced DNA damage in a time- and concentration-dependent manner. To our knowledge, this is one of the first assessment of MNP genotoxicity in an integrated in vitro ingestion platform including simulated GIT digestion and a triculture SIE model. These findings suggest that ingestion of high concentrations of carboxylated PS MNPs could have serious genotoxic consequences in the SIE.
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Affiliation(s)
- Zhenning Yang
- Nanoscience and Advanced Materials Center, Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA; (Z.Y.); (G.M.D.)
- Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA;
| | - Glen M. DeLoid
- Nanoscience and Advanced Materials Center, Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA; (Z.Y.); (G.M.D.)
- Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA;
| | - Joshua Baw
- Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA;
| | - Helmut Zarbl
- Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA;
- School of Public Health, Rutgers University, Piscataway, NJ 08854, USA
| | - Philip Demokritou
- Nanoscience and Advanced Materials Center, Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA; (Z.Y.); (G.M.D.)
- Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA;
- School of Public Health, Rutgers University, Piscataway, NJ 08854, USA
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7
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Vojnits K, de León A, Rathore H, Liao S, Zhao M, Gibon J, Pakpour S. ROS-dependent degeneration of human neurons induced by environmentally relevant levels of micro- and nanoplastics of diverse shapes and forms. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:134017. [PMID: 38518696 DOI: 10.1016/j.jhazmat.2024.134017] [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: 01/13/2024] [Revised: 03/08/2024] [Accepted: 03/11/2024] [Indexed: 03/24/2024]
Abstract
Our study explores the pressing issue of micro- and nanoplastics (MNPs) inhalation and their subsequent penetration into the brain, highlighting a significant environmental health concern. We demonstrate that MNPs can indeed penetrate murine brain, warranting further investigation into their neurotoxic effects in humans. We then proceed to test the impact of MNPs at environmentally relevant concentrations, with focusing on variations in size and shape. Our findings reveal that these MNPs induce oxidative stress, cytotoxicity, and neurodegeneration in human neurons, with cortical neurons being more susceptible than nociceptors. Furthermore, we examine the role of biofilms on MNPs, demonstrating that MNPs can serve as a vehicle for pathogenic biofilms that significantly exacerbate these neurotoxic effects. This sequence of investigations reveals that minimal MNPs accumulation can cause oxidative stress and neurodegeneration in human neurons, significantly risking brain health and highlights the need to understand the neurological consequences of inhaling MNPs. Overall, our developed in vitro testing battery has significance in elucidating the effects of environmental factors and their associated pathological mechanisms in human neurons.
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Affiliation(s)
- Kinga Vojnits
- School of Engineering, University of British Columbia, Kelowna, BC, Canada
| | - Andrés de León
- School of Engineering, University of British Columbia, Kelowna, BC, Canada; Department of Biology, University of British Columbia, Kelowna, BC, Canada
| | - Harneet Rathore
- School of Engineering, University of British Columbia, Kelowna, BC, Canada
| | - Sophia Liao
- School of Engineering, University of British Columbia, Kelowna, BC, Canada
| | - Michael Zhao
- School of Engineering, University of British Columbia, Kelowna, BC, Canada
| | - Julien Gibon
- Department of Biology, University of British Columbia, Kelowna, BC, Canada; Office of Vice-Principal, Research and Innovation, McGill University, Montreal, Quebec, Canada
| | - Sepideh Pakpour
- School of Engineering, University of British Columbia, Kelowna, BC, Canada.
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Liu S, He Y, Yin J, Zhu Q, Liao C, Jiang G. Neurotoxicities induced by micro/nanoplastics: A review focusing on the risks of neurological diseases. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:134054. [PMID: 38503214 DOI: 10.1016/j.jhazmat.2024.134054] [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: 01/16/2024] [Revised: 03/06/2024] [Accepted: 03/14/2024] [Indexed: 03/21/2024]
Abstract
Pollution of micro/nano-plastics (MPs/NPs) is ubiquitously prevalent in the environment, leading to an unavoidable exposure of the human body. Despite the protection of the blood-brain barrier, MPs/NPs can be transferred and accumulated in the brain, which subsequently exert negative effects on the brain. Nevertheless, the potential neurodevelopmental and/or neurodegenerative risks of MPs/NPs remain largely unexplored. In this review, we provide a systematic overview of recent studies related to the neurotoxicity of MPs/NPs. It covers the environmental hazards and human exposure pathways, translocation and distribution into the brain, the neurotoxic effects, and the possible mechanisms of environmental MPs/NPs. MPs/NPs are widely found in different environment matrices, including air, water, soil, and human food. Ambient MPs/NPs can enter the human body by ingestion, inhalation and dermal contact, then be transferred into the brain via the blood circulation and nerve pathways. When MPs/NPs are present in the brain, they can initiate a series of molecular or cellular reactions that may harm the blood-brain barrier, cause oxidative stress, trigger inflammatory responses, affect acetylcholinesterase activity, lead to mitochondrial dysfunction, and impair autophagy. This can result in abnormal protein folding, loss of neurons, disruptions in neurotransmitters, and unusual behaviours, ultimately contributing to the initiation and progression of neurodegenerative changes and neurodevelopmental abnormalities. Key challenges and further research directions are also proposed in this review as more studies are needed to focus on the potential neurotoxicity of MPs/NPs under realistic conditions.
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Affiliation(s)
- Shuang Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yinling He
- 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
| | - Jia Yin
- 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
| | - Qingqing Zhu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunyang Liao
- 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; Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, Institute of Environment and Health, Jianghan University, Wuhan 430056, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Guibin Jiang
- 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; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
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9
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Zheng Y, Xu S, Liu J, Liu Z. The effects of micro- and nanoplastics on the central nervous system: A new threat to humanity? Toxicology 2024; 504:153799. [PMID: 38608860 DOI: 10.1016/j.tox.2024.153799] [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: 03/10/2024] [Revised: 04/03/2024] [Accepted: 04/07/2024] [Indexed: 04/14/2024]
Abstract
Given the widespread production and use of plastics, poor biodegradability, and inadequate recycling, micro/nanoplastics (MNPs) have caused widespread environmental pollution. As a result, humans inevitably ingest MNPs through various pathways. However, there is still no consensus on whether exposure to MNPs has adverse effects on humans. This article aims to provide a comprehensive overview of the knowledge of MNPs and the potential mechanisms of their impact on the central nervous system. Numerous in vivo and in vitro studies have shown that exposure to MNPs may pass through the blood-brain barrier (BBB) and lead to neurotoxicity through impairments in oxidative and inflammatory balance, neurotransmitter alternation, nerve conduction-related key enzymes, and impact through the gut-brain axis. It is worth noting that MNPs may act as carriers and have more severe effects on the body when co-exposed with other substances. MNPs of smaller sizes cause more severe harm. Despite the scarcity of reports directly relevant to humans, this review brings together a growing body of evidence showing that exposure to MNPs disturbs neurons and has even been found to alter the memory and behavior of organisms. This effect may lead to further potential negative influence on the central nervous system and contribute to the development of other diseases such as central nervous system inflammation and Parkinson 's-like neurodegenerative disorders. There is a need further to investigate the threat of MNPs to human health.
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Affiliation(s)
- Yanxu Zheng
- Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, PR China
| | - Shengchao Xu
- Department of Neurosurgery, Xiangya Hospital, 87th Xiangya Road, Changsha, Hunan 410008, PR China
| | - Jingyu Liu
- Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, PR China
| | - Zhixiong Liu
- Department of Neurosurgery, Xiangya Hospital, 87th Xiangya Road, Changsha, Hunan 410008, PR China; National Clinical Research Center for Geriatric Disorders, Changsha, Hunan 410013, PR China.
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10
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Sofield CE, Anderton RS, Gorecki AM. Mind over Microplastics: Exploring Microplastic-Induced Gut Disruption and Gut-Brain-Axis Consequences. Curr Issues Mol Biol 2024; 46:4186-4202. [PMID: 38785524 PMCID: PMC11120006 DOI: 10.3390/cimb46050256] [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: 03/28/2024] [Revised: 04/22/2024] [Accepted: 04/29/2024] [Indexed: 05/25/2024] Open
Abstract
As environmental plastic waste degrades, it creates an abundance of diverse microplastic particles. Consequently, microplastics contaminate drinking water and many staple food products, meaning the oral ingestion of microplastics is an important exposure route for the human population. Microplastics have long been considered inert, however their ability to promote microbial dysbiosis as well as gut inflammation and dysfunction suggests they are more noxious than first thought. More alarmingly, there is evidence for microplastics permeating from the gut throughout the body, with adverse effects on the immune and nervous systems. Coupled with the now-accepted role of the gut-brain axis in neurodegeneration, these findings support the hypothesis that this ubiquitous environmental pollutant is contributing to the rising incidence of neurodegenerative diseases, like Alzheimer's disease and Parkinson's disease. This comprehensive narrative review explores the consequences of oral microplastic exposure on the gut-brain-axis by considering current evidence for gastrointestinal uptake and disruption, immune activation, translocation throughout the body, and neurological effects. As microplastics are now a permanent feature of the global environment, understanding their effects on the gut, brain, and whole body will facilitate critical further research and inform policy changes aimed at reducing any adverse consequences.
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Affiliation(s)
- Charlotte E. Sofield
- School of Health Sciences, University of Notre Dame Australia, Fremantle, WA 6160, Australia; (C.E.S.); (R.S.A.)
| | - Ryan S. Anderton
- School of Health Sciences, University of Notre Dame Australia, Fremantle, WA 6160, Australia; (C.E.S.); (R.S.A.)
- Institute for Health Research, University of Notre Dame Australia, Fremantle, WA 6160, Australia
| | - Anastazja M. Gorecki
- School of Health Sciences, University of Notre Dame Australia, Fremantle, WA 6160, Australia; (C.E.S.); (R.S.A.)
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11
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Liu B, Zhao S, Qiu T, Cui Q, Yang Y, Li L, Chen J, Huang M, Zhan A, Fang L. Interaction of microplastics with heavy metals in soil: Mechanisms, influencing factors and biological effects. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170281. [PMID: 38272091 DOI: 10.1016/j.scitotenv.2024.170281] [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: 10/31/2023] [Revised: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024]
Abstract
Microplastics (MPs) and heavy metals (HMs) in soil contamination are considered an emerging global problem that poses environmental and health risks. However, their interaction and potential biological effects remain unclear. Here, we reviewed the interaction of MPs with HMs in soil, including its mechanisms, influencing factors and biological effects. Specifically, the interactions between HMs and MPs mainly involve sorption and desorption. The type, aging, concentration, size of MPs, and the physicochemical properties of HMs and soil have significant impacts on the interaction. In particular, MP aging affects specific surface areas and functional groups. Due to the small size and resistance to decomposition characteristics of MPs, they are easily transported through the food chain and exhibit combined biological effects with HMs on soil organisms, thus accumulating in the human body. To comprehensively understand the effect of MPs and HMs in soil, we propose combining traditional experiments with emerging technologies and encouraging more coordinated efforts.
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Affiliation(s)
- Baiyan Liu
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, CAS and MWR, Yangling 712100, China; The Research Center of Soil and Water Conservation and Ecological Environment, CAS and MOE, Yangling 712100, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuling Zhao
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, CAS and MWR, Yangling 712100, China; The Research Center of Soil and Water Conservation and Ecological Environment, CAS and MOE, Yangling 712100, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tianyi Qiu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, China; Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan, China
| | - Qingliang Cui
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, CAS and MWR, Yangling 712100, China; The Research Center of Soil and Water Conservation and Ecological Environment, CAS and MOE, Yangling 712100, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuyi Yang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Lili Li
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jing Chen
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Min Huang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, China
| | - Ai Zhan
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, CAS and MWR, Yangling 712100, China; The Research Center of Soil and Water Conservation and Ecological Environment, CAS and MOE, Yangling 712100, China; College of Soil and Water Conservation Science and Engineering (Institute of Soil and Water Conservation), Northwest A&F University, Yangling, China.
| | - Linchuan Fang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, CAS and MWR, Yangling 712100, China; The Research Center of Soil and Water Conservation and Ecological Environment, CAS and MOE, Yangling 712100, China; Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan, China.
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12
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Wen J, Sun H, Yang B, Song E, Song Y. Long-term polystyrene nanoplastic exposure disrupt hepatic lipid metabolism and cause atherosclerosis in ApoE -/- mice. JOURNAL OF HAZARDOUS MATERIALS 2024; 466:133583. [PMID: 38306833 DOI: 10.1016/j.jhazmat.2024.133583] [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: 10/02/2023] [Revised: 01/09/2024] [Accepted: 01/18/2024] [Indexed: 02/04/2024]
Abstract
Nanoplastics (NPs) exposure is usually linked with abnormal inflammation and oxidative stress, which are high-risk triggers of atherosclerosis; however, whether this exposure causes the development of atherosclerosis is vague. Here, we found that PS NPs co-exposure with ox-LDL induces significant accumulation of lipid, as well as oxidative stress and inflammation in RAW264.7 macrophages. Using an ultrasound biomicroscope (UBM), we observed the emergence of atherosclerotic plaques at the aortic arch of apolipoprotein knockout (ApoE-/-) mice after being exposed to PS NPs for three months. Oil-red O and hematoxylin-eosin (H&E) staining at the mice's aortic root also observed the deposition of lipids with plaque formation. Moreover, the development of atherosclerotic disease is associated with disturbances in lipid metabolism and oxidative stress damage in the mice liver. In conclusion, this study provides additional evidence to further understand the possible cardiovascular damage caused by NPs exposure.
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Affiliation(s)
- Jing Wen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Hang Sun
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Bingwei Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Erqun Song
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Yang Song
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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13
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Wang J, Yang Y, Shi Y, Wei L, Gao L, Liu M. Oxidized/unmodified-polyethylene microplastics neurotoxicity in mice: Perspective from microbiota-gut-brain axis. ENVIRONMENT INTERNATIONAL 2024; 185:108523. [PMID: 38484610 DOI: 10.1016/j.envint.2024.108523] [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: 11/02/2023] [Revised: 01/10/2024] [Accepted: 02/19/2024] [Indexed: 03/26/2024]
Abstract
Microplastics (MPs) are inevitably oxidized in the environment, and their potential toxicity to organisms has attracted wide attention. However, the neurotoxicity and mechanism of oxidized polyethylene (Ox-PE) MPs to organisms remain unclear. Herein, we prepared oxidized low-density polyethylene (Ox-LDPE) and established a model of MPs exposure by continuously orally gavage of C57BL/6 J mice with LDPE-MPs/Ox-LDPE-MPs for 28 days with or without oral administration of Lactobacillus plantarum DP189 and galactooligosaccharides (DP189&GOS). The experimental results indicated that LDPE-MPs or Ox-LDPE-MPs caused several adverse effects in mice, mainly manifested by behavioral changes, disruption of the intestinal and blood-brain barrier (BBB), and simultaneous oxidative stress, inflammatory reactions, and pathological damage in the brain and intestines. Brain transcriptomic analysis revealed that the cholinergic synaptic signaling pathways, which affect cognitive function, were significantly disrupted after exposure to LDPE-MPs or Ox-LDPE-MPs. Real-time quantitative polymerase chain reaction and Western Blotting results further demonstrated that the critical genes (Slc5a7, Chat and Slc18a3) and proteins (Chat and Slc18a3) in the cholinergic synaptic signaling pathway were significantly down-regulated after exposure to LDPE-MPs or Ox-LDPE-MPs. These alterations lead to reduced acetylcholine concentration, which causes cognitive dysfunction in mice. Importantly, the DP189&GOS interventions effectively mitigated the MPs-induced cognitive dysfunction and intestinal microbiota alteration, improved intestinal and BBB integrity, attenuated the oxidative stress and inflammatory response, and also saw a rebound in the release of acetylcholine. These results indicated that LDPE-MPs and Ox-LDPE-MPs exert neurotoxic effects on mice by inducing oxidative stress, inflammatory responses, and dysregulation of cholinergic signaling pathways in the mouse brain. That probiotic supplementation is effective in attenuating MPs-induced neurotoxicity in mice. Overall, this study reveals the potential mechanisms of neurotoxicity of LDPE-MPs and Ox-LDPE-MPs on mice and their improvement measures, necessary to assess the potential risks of plastic contaminants to human health.
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Affiliation(s)
- Ji Wang
- School of Life Sciences, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
| | - Ying Yang
- School of Life Sciences, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
| | - Yongpeng Shi
- School of Life Sciences, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China
| | - Li Wei
- School of Life Sciences, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China; NHC Key Laboratory of Diagnosis and Therapy of Gastrointestinal Tumor, Gansu Provincial Hospital, Lanzhou 730000, Gansu Province, China
| | - Lan Gao
- School of Life Sciences, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China.
| | - Mingxin Liu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, No. 222 South Tianshui Road, Lanzhou 730000, Gansu Province, China.
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14
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Marcellus KA, Bugiel S, Nunnikhoven A, Curran I, Gill SS. Polystyrene Nano- and Microplastic Particles Induce an Inflammatory Gene Expression Profile in Rat Neural Stem Cell-Derived Astrocytes In Vitro. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:429. [PMID: 38470760 DOI: 10.3390/nano14050429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024]
Abstract
Microplastics are considered an emerging environmental pollutant due to their ubiquitous presence in the environment. However, the potential impact of microplastics on human health warrants further research. Recent studies have reported neurobehavioral and neurotoxic effects in marine and rodent models; however, their impact on the underlying cellular physiology in mammals remains unclear. Herein, we exposed neural stem cells and neural stem cell-derived astrocytes, oligodendrocytes, and neurons to various sizes and concentrations of polystyrene nano- and microplastics. We investigated their cellular uptake, impact on cytotoxicity, and alteration of gene expression through transcriptome profiling. The cell type most affected by decreased viability were astrocytes after 7 days of repeated exposure. Transcriptional analysis showed that 1274 genes were differentially expressed in astrocytes exposed to 500 nm microplastics, but only 531 genes were altered in astrocytes exposed to 50 nm nanoplastics. Both canonical pathway and Kyoto Encyclopedia of Genes and Genomes analysis showed that upregulated pathways were involved in neuroinflammation, innate and adaptive immunity, cell migration, proliferation, extracellular matrix remodeling, and cytoskeleton structures. The downregulated pathways were involved in lipid metabolism, specifically fatty acid oxidation and cholesterol metabolism. Our results show that neural stem cell-derived astrocytes repeatedly exposed to nano- and microplastics for 7 days undergo changes that are hallmarks of astrogliosis.
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Affiliation(s)
- Kristen A Marcellus
- Regulatory Toxicology Research Division, Bureau of Chemical Safety, Health Products and Food Branch, Health Canada, Ottawa, ON K1A 0K9, Canada
| | - Steven Bugiel
- Regulatory Toxicology Research Division, Bureau of Chemical Safety, Health Products and Food Branch, Health Canada, Ottawa, ON K1A 0K9, Canada
| | - Andrée Nunnikhoven
- Regulatory Toxicology Research Division, Bureau of Chemical Safety, Health Products and Food Branch, Health Canada, Ottawa, ON K1A 0K9, Canada
| | - Ivan Curran
- Regulatory Toxicology Research Division, Bureau of Chemical Safety, Health Products and Food Branch, Health Canada, Ottawa, ON K1A 0K9, Canada
| | - Santokh S Gill
- Regulatory Toxicology Research Division, Bureau of Chemical Safety, Health Products and Food Branch, Health Canada, Ottawa, ON K1A 0K9, Canada
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15
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Cao H, Ding P, Li X, Huang C, Li X, Chen X, Zhang L, Qi J. Environmentally persistent free radicals on photoaged microplastics from disposable plastic cups induce the oxidative stress-associated toxicity. JOURNAL OF HAZARDOUS MATERIALS 2024; 464:132990. [PMID: 37976855 DOI: 10.1016/j.jhazmat.2023.132990] [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: 07/21/2023] [Revised: 10/26/2023] [Accepted: 11/09/2023] [Indexed: 11/19/2023]
Abstract
Microplastics (MPs) are ubiquitous environmental contaminants that exerting multiple toxicological effects. Most studies have focused primarily on the models of unaged MPs and lack environmental relevance. The generation and toxicity of environmentally persistent free radicals (EPFRs) on photoaging MPs from disposable plastic cups (DPC-MPs) have not been well studied. Here, the formation of EPFRs on photoaged DPC-MPs and their toxic effects in nematodes were investigated. UV irradiation generated EPFRs, which influenced the characterization of DPC-MPs. Exposure to photoaged DPC-MPs at environmentally relevant concentrations (100-1000 μg/L) reduced the locomotion behavior, body length, and brood size. The Reactive oxygen species (ROS) production, lipofuscin accumulation, malondialdehyde (MDA), and 8-hydroxy-2'-deoxyguanosine (8-OHdG) levels were increased along with the downregulation of the expression levels of associated genes, such as clk-1, clt-1, and gst-4,in nematodes. Moreover, the toxicity and oxidative stress response of nematodes were significantly inhibited due to N-acetyl-l-cysteine (NAC). Pearson's correlation analysis revealed that the oxidative stress was significantly associated with adverse physiological effects. Therefore, EPFRs on photoaged DPC-MPs cause toxicity in nematodes, and oxidative stress is important for regulating toxicity. This study offers novel insights into the potential risks of DPC-MPs under UV irradiation, highlighting the need to consider the role of EPFRs in toxicity assessments of DPC-MPs.
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Affiliation(s)
- Hanling Cao
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Ping Ding
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
| | - Xintong Li
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
| | - Chushan Huang
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
| | - Xin Li
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
| | - Xiaoxia Chen
- Institute for Environmental pollution and health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Lijuan Zhang
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China.
| | - Jianying Qi
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China.
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16
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Li K, Xiu X, Hao W. Microplastics in soils: Production, behavior process, impact on soil organisms, and related toxicity mechanisms. CHEMOSPHERE 2024; 350:141060. [PMID: 38159733 DOI: 10.1016/j.chemosphere.2023.141060] [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: 09/16/2023] [Revised: 12/20/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
In recent years, microplastics (MPs) pollution has become a hot ecological issue of global concern and MP pollution in soil is becoming increasingly serious. Studies have shown that MPs have adverse effects on soil biology and ecological functions. Although MPs are evident in soils, identifying their source, abundance, and types is difficult because of the complexity and variability of soil components. In addition, the effects of MPs on soil physicochemical properties (PCP), including direct effects such as direct interaction with soil particles and indirect effects such as the impact on soil organisms, have not been reported in a differentiated manner. Furthermore, at present, the soil ecological effects of MPs are mostly based on biological toxicity reports of their exudate or size effects, whereas the impact of their surface-specific properties (such as environmentally persistent free radicals, surface functional groups, charge, and curvature) on soil ecological functions is not fully understood. Considering this, this paper reviews the latest research findings on the production and behavioral processes of MPs in soil, the effects on soil PCP, the impacts on different soil organisms, and the related toxic mechanisms. The above discussion will enhance further understanding of the behavioral characteristics and risks of MPs in soil ecosystems and provide some theoretical basis for further clarification of the molecular mechanisms of the effects of MPs on soil organisms.
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Affiliation(s)
- Kun Li
- School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, China.
| | - Xiaojia Xiu
- Changwang School of Honors, Nanjing University of Information Science and Technology, Nanjing, 210044, China
| | - Wanqi Hao
- School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, China
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17
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Sly P, Nabhani KA, Sripada K, Kayama F. Microplastics in the Asia-Pacific Region in the Plasticene Era: Exposures and Health Risks. Ann Glob Health 2024; 90:8. [PMID: 38312716 PMCID: PMC10836168 DOI: 10.5334/aogh.4326] [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: 09/21/2023] [Accepted: 12/21/2023] [Indexed: 02/06/2024] Open
Abstract
Within the broader Anthropocene Epoch resides the Plasticene Era, where humans are subjected pervasively to nano- and microplastics (NMPs). Human's widespread exposure with NMPs occurs through the air we breathe, water we drink, and food we eat. NMP sources are wide and varied; atmospheric NMPs are largely attributed to fibres from car tyres and synthetic clothing, while particles from food packaging, personal care products, and plastic manufacturing contribute significantly to food and water contamination. NMPs have become inherent within the human body and have been found in every organ. As such, the evidence base around adverse health effects is fragmented but growing. This article presents a mini-review and report of sessions presented about NMPs at the 19th International Conference of the Pacific Basin Consortium for Environment and Health, held on Jeju Island, in 2022. Abundant evidence of substantial exposure to NMPs in the Asia-Pacific region has been exhibited. Addressing this issue necessitates the collaboration of policymakers, manufacturers, and researchers to develop safer alternatives and implement mitigation and remediation strategies. The ongoing development of a new United Nations-led global plastic treaty presents a crucial opportunity that must be acted on and not be compromised.
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Affiliation(s)
- Peter Sly
- Children’s Health and Environment Program, Child Health Research Centre, The University of Queensland, AU
| | | | - Kam Sripada
- Centre for Digital Life Norway, Institute of Biotechnology & Food Science, Norwegian University of Science & Technology, NO
| | - Fujio Kayama
- Division of Environmental Medicine, Center for Community Medicine, Jichi Medical University, JP
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18
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Wieland S, Ramsperger AFRM, Gross W, Lehmann M, Witzmann T, Caspari A, Obst M, Gekle S, Auernhammer GK, Fery A, Laforsch C, Kress H. Nominally identical microplastic models differ greatly in their particle-cell interactions. Nat Commun 2024; 15:922. [PMID: 38297000 PMCID: PMC10830523 DOI: 10.1038/s41467-024-45281-4] [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: 07/01/2022] [Accepted: 01/19/2024] [Indexed: 02/02/2024] Open
Abstract
Due to the abundance of microplastics in the environment, research about its possible adverse effects is increasing exponentially. Most studies investigating the effect of microplastics on cells still rely on commercially available polystyrene microspheres. However, the choice of these model microplastic particles can affect the outcome of the studies, as even nominally identical model microplastics may interact differently with cells due to different surface properties such as the surface charge. Here, we show that nominally identical polystyrene microspheres from eight different manufacturers significantly differ in their ζ-potential, which is the electrical potential of a particle in a medium at its slipping plane. The ζ-potential of the polystyrene particles is additionally altered after environmental exposure. We developed a microfluidic microscopy platform to demonstrate that the ζ-potential determines particle-cell adhesion strength. Furthermore, we find that due to this effect, the ζ-potential also strongly determines the internalization of the microplastic particles into cells. Therefore, the ζ-potential can act as a proxy of microplastic-cell interactions and may govern adverse effects reported in various organisms exposed to microplastics.
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Affiliation(s)
- Simon Wieland
- Biological Physics, University of Bayreuth, Bayreuth, Germany
- Animal Ecology I and BayCEER, University of Bayreuth, Bayreuth, Germany
| | - Anja F R M Ramsperger
- Biological Physics, University of Bayreuth, Bayreuth, Germany
- Animal Ecology I and BayCEER, University of Bayreuth, Bayreuth, Germany
| | - Wolfgang Gross
- Biological Physics, University of Bayreuth, Bayreuth, Germany
| | - Moritz Lehmann
- Biofluid Simulation and Modeling - Theoretical Physics VI, University of Bayreuth, Bayreuth, Germany
| | - Thomas Witzmann
- Leibniz Institut für Polymerforschung Dresden e. V., Institute of Physical Chemistry and Polymer Physics, Dresden, Germany
| | - Anja Caspari
- Leibniz Institut für Polymerforschung Dresden e. V., Institute of Physical Chemistry and Polymer Physics, Dresden, Germany
| | - Martin Obst
- Experimental Biogeochemistry, BayCEER, University of Bayreuth, Bayreuth, Germany
| | - Stephan Gekle
- Biofluid Simulation and Modeling - Theoretical Physics VI, University of Bayreuth, Bayreuth, Germany
| | - Günter K Auernhammer
- Leibniz Institut für Polymerforschung Dresden e. V., Institute of Physical Chemistry and Polymer Physics, Dresden, Germany
| | - Andreas Fery
- Leibniz Institut für Polymerforschung Dresden e. V., Institute of Physical Chemistry and Polymer Physics, Dresden, Germany
- Physical Chemistry of Polymeric Materials, Technische Universität Dresden, Dresden, Germany
| | - Christian Laforsch
- Animal Ecology I and BayCEER, University of Bayreuth, Bayreuth, Germany.
| | - Holger Kress
- Biological Physics, University of Bayreuth, Bayreuth, Germany.
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19
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Jiang S, Ma Y, Shi Y, Zou Y, Yang Z, Zhi W, Zhao Z, Shen W, Chen L, Wu Y, Wang L, Hu X, Wu H. Acute exposure of microwave impairs attention process by activating microglial inflammation. Cell Biosci 2024; 14:2. [PMID: 38178181 PMCID: PMC10768366 DOI: 10.1186/s13578-023-01162-9] [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: 07/12/2023] [Accepted: 11/02/2023] [Indexed: 01/06/2024] Open
Abstract
BACKGROUND Attention provides the foundation for cognitions, which was shown to be affected by microwave (MW) radiation. With the ubiquitous of microwaves, public concerns regarding the impact of MW radiation on attention has hence been increased. Our study aims to investigate the potential effect and mechanism of acute microwave exposure on attention. RESULTS We identified obvious impairment of attention in mice by the five-choice serial reaction time (5-CSRT) task. Proteomic analysis of the cerebrospinal fluid (CSF) revealed neuroinflammation and microglial activation potentially due to acute MW exposure. Moreover, biochemical analysis further confirmed microglial activation in the prefrontal cortex (PFC) of mice subjected to acute MW exposure. Finally, minocycline, a commercially available anti-inflammatory compound, attenuated neuroinflammation, inhibited the upregulation of N-methyl-D-aspartic acid receptor (NMDAR) including NR2A and NR2B, and also accelerated the attentional recovery after MW exposure. CONCLUSIONS We believe that microglial activation and NMDAR upregulation likely contribute to inattention induced by acute MW exposure, and we found that minocycline may be effective in preventing such process.
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Affiliation(s)
- Shaofei Jiang
- Department of Neurobiology, Beijing Institute of Basic Medical Sciences, Beijing, China
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Yingping Ma
- Department of Neurobiology, Beijing Institute of Basic Medical Sciences, Beijing, China
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui Province, China
| | - Yuan Shi
- Department of Neurobiology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Yong Zou
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Zhenqi Yang
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Weijia Zhi
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Zhe Zhao
- Department of Neurobiology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Wei Shen
- Department of Neurobiology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Liping Chen
- Department of Neurobiology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Yan Wu
- Department of Neurobiology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Lifeng Wang
- Beijing Institute of Radiation Medicine, Beijing, China.
| | - Xiangjun Hu
- Beijing Institute of Radiation Medicine, Beijing, China.
| | - Haitao Wu
- Department of Neurobiology, Beijing Institute of Basic Medical Sciences, Beijing, China.
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui Province, China.
- Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China.
- Chinese Institute for Brain Research, Beijing, China.
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20
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Xu W, Ye S, Liu W, Guo H, Zhang L, Wei S, Anwaier A, Chang K, Malafaia G, Zhang H, Ye D, Wei G. Single-cell RNA-seq analysis decodes the kidney microenvironment induced by polystyrene microplastics in mice receiving a high-fat diet. J Nanobiotechnology 2024; 22:13. [PMID: 38167034 PMCID: PMC10762848 DOI: 10.1186/s12951-023-02266-7] [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: 08/31/2023] [Accepted: 12/12/2023] [Indexed: 01/05/2024] Open
Abstract
In recent years, the environmental health issue of microplastics has aroused an increasingly significant concern. Some studies suggested that exposure to polystyrene microplastics (PS-MPs) may lead to renal inflammation and oxidative stress in animals. However, little is known about the essential effects of PS-MPs with high-fat diet (HFD) on renal development and microenvironment. In this study, we provided the single-cell transcriptomic landscape of the kidney microenvironment induced by PS-MPs and HFD in mouse models by unbiased single-cell RNA sequencing (scRNA-seq). The kidney injury cell atlases in mice were evaluated after continued PS-MPs exposure, or HFD treated for 35 days. Results showed that PS-MPs plus HFD treatment aggravated the kidney injury and profibrotic microenvironment, reshaping mouse kidney cellular components. First, we found that PS-MPs plus HFD treatment acted on extracellular matrix organization of renal epithelial cells, specifically the proximal and distal convoluted tubule cells, to inhibit renal development and induce ROS-driven carcinogenesis. Second, PS-MPs plus HFD treatment induced activated PI3K-Akt, MAPK, and IL-17 signaling pathways in endothelial cells. Besides, PS-MPs plus HFD treatment markedly increased the proportions of CD8+ effector T cells and proliferating T cells. Notably, mononuclear phagocytes exhibited substantial remodeling and enriched in oxidative phosphorylation and chemical carcinogenesis pathways after PS-MPs plus HFD treatment, typified by alterations tissue-resident M2-like PF4+ macrophages. Multispectral immunofluorescence and immunohistochemistry identified PF4+ macrophages in clear cell renal cell carcinoma (ccRCC) and adjacent normal tissues, indicating that activate PF4+ macrophages might regulate the profibrotic and pro-tumorigenic microenvironment after renal injury. In conclusion, this study first systematically revealed molecular variation of renal cells and immune cells in mice kidney microenvironment induced by PS-MPs and HFD with the scRNA-seq approach, which provided a molecular basis for decoding the effects of PS-MPs on genitourinary injury and understanding their potential profibrotic and carcinogenesis in mammals.
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Affiliation(s)
- Wenhao Xu
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, 200032, People's Republic of China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China
- Shanghai Genitourinary Cancer Institute, Shanghai, 200032, People's Republic of China
| | - Shiqi Ye
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, 200032, People's Republic of China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China
- Shanghai Genitourinary Cancer Institute, Shanghai, 200032, People's Republic of China
| | - Wangrui Liu
- Department of Interventional Oncology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, People's Republic of China
| | - Huaqi Guo
- Department of Pulmonary and Critical Care Medicine, The Ninth People's Hospital of Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Linhui Zhang
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, 200032, People's Republic of China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China
- Shanghai Genitourinary Cancer Institute, Shanghai, 200032, People's Republic of China
| | - Shiyin Wei
- Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, China
| | - Aihetaimujiang Anwaier
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, 200032, People's Republic of China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China
- Shanghai Genitourinary Cancer Institute, Shanghai, 200032, People's Republic of China
| | - Kun Chang
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, 200032, People's Republic of China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China
- Shanghai Genitourinary Cancer Institute, Shanghai, 200032, People's Republic of China
| | - Guilherme Malafaia
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute - Urutaí Campus, Rodovia Geraldo Silva Nascimento, 2,5 Km, Zona Rural, Urutaí, GO, Brazil.
| | - Hailiang Zhang
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, 200032, People's Republic of China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China.
- Shanghai Genitourinary Cancer Institute, Shanghai, 200032, People's Republic of China.
| | - Dingwei Ye
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, 200032, People's Republic of China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China.
- Shanghai Genitourinary Cancer Institute, Shanghai, 200032, People's Republic of China.
| | - Gang Wei
- Beijing Key Laboratory of Diabetes Research and Care, Department of Endocrinology, Beijing Tongren Hospital, Beijing Diabetes Institute, Capital Medical University, Beijing, 100730, China.
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21
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Guo S, Shi H, Qi Y, Tian G, Wang T, He F, Li X, Liu R. Environmental relevant concentrations of polystyrene nanoplastics and lead co-exposure triggered cellular cytotoxicity responses and underlying mechanisms in Eisenia fetida. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167264. [PMID: 37741403 DOI: 10.1016/j.scitotenv.2023.167264] [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: 07/26/2023] [Revised: 09/02/2023] [Accepted: 09/20/2023] [Indexed: 09/25/2023]
Abstract
Heavy metal pollution of soils and the widespread use of plastics have caused environmental problems worldwide. Nanoplastics (NPs) contaminants in water and soil environments can adsorb heavy metals, thereby affecting the bioavailability and toxicity of heavy metals. In this paper, the effect of co-exposure of polystyrene microspheres with 100 nm particle size and lead acetate (Pb) on the Eisenia fetida coelomocytes was investigated. The environmental concentration of NPs used was 0.01 mg/L and the concentration of Pb ranged from 0.01 to 1 mg/L, and the exposed cells were incubated at 298 k for 24 h. Our study demonstrated that exposure of cells to environmental relevant concentrations of NPs did not significantly affect the cytotoxicity of Pb exposure. It was shown that co-exposure induced cellular production of reactive oxygen species (ROS, increased to 134.4 %) disrupted the antioxidant system of earthworm body cavity cells, activated superoxide dismutase and catalase (CAT), produced reduced glutathione, and inhibited glutathione-dependent enzyme (GST) activity (Reduced to 64 %). Total antioxidant capacity (T-AOC) is first enhanced against ROS due to the stress of NPs and Pb. When the antioxidant reserves of cells are exhausted, the antioxidant capacity will decrease. The level of malondialdehyde, a biomarker of eventual lipid peroxidation, increased to 231.7 %. At the molecular level, due to co-exposure to NPs and Pb, CAT was loosely structured and the secondary structure is misfolded, which was responsible for exacerbating oxidative damage in E. fetida coelomocytes. The findings of this study have significant implications for the toxicological interaction and future risk assessment of co-contamination of NPs and Pb in the environment.
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Affiliation(s)
- Shuqi Guo
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR 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, PR China
| | - Yuntao Qi
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Guang Tian
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Tingting Wang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - 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, PR 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, PR 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, PR China.
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22
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Delaney S, Rodriguez C, Sarrett SM, Dayts EJ, Zeglis BM, Keinänen O. Unraveling the in vivo fate of inhaled micro- and nanoplastics with PET imaging. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166320. [PMID: 37586535 PMCID: PMC10841220 DOI: 10.1016/j.scitotenv.2023.166320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/22/2023] [Accepted: 08/13/2023] [Indexed: 08/18/2023]
Abstract
Microplastics and nanoplastics have become ubiquitous environmental pollutants. The threat these plastics pose to human health has fueled research focused on their pathophysiology and toxicology, yet many of their fundamental properties - for example, their in vivo pharmacokinetics - remain poorly understood. In this investigation, we have harnessed positron emission tomography (PET) to track the in vivo fate of micro- and nanoplastics administered to mice intratracheally and intravenously. To this end, 1 μm and 20 nm diameter amine-functionalized polystyrene particles were modified with an isothiocyanate-bearing variant of desferrioxamine (DFO) and radiolabeled with the positron-emitting radiometal [89Zr]Zr4+. Both radioplastics - [89Zr]Zr-DFO-PS1000 and [89Zr]Zr-DFO-PS20 - were produced in ∼95% radiochemical yield and found to be >85% stable to demetallation over one week at 37 °C in human serum and simulated lung fluid. The incubation of [89Zr]Zr-DFO-PS1000 and [89Zr]Zr-DFO-PS20 with MH-S cells revealed that the majority of the former were phagocytosed by alveolar macrophages within 4 h, while the latter largely evaded consumption. Finally, the in vivo behavior of the radioplastics was interrogated in mice upon intravenous and intratracheal administration. PET imaging and biodistribution experiments revealed that the intravenously injected plastics accumulated primarily in the liver and spleen, yielding hepatic radioactivity concentrations of 101 ± 48 %ID/g and 92 ± 22 %ID/g at 168 h post-injection for [89Zr]Zr-DFO-PS1000 and [89Zr]Zr-DFO-PS20, respectively. In contrast, the mice that received the radioplastics via intratracheal installation displayed the highest uptake in the lungs at the end of one week: 4 ± 2 %ID/g for [89Zr]Zr-DFO-PS1000 and 32 ± 6 %ID/g for [89Zr]Zr-DFO-PS20. Ultimately, this work illustrates the critical role that the route of exposure plays in the bioaccumulation of plastic particles, reveals that size dramatically influences the pulmonary retention of inhaled particles, and underscores the value of PET imaging as a tool for studying the pharmacokinetics of environmental pollutants.
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Affiliation(s)
- Samantha Delaney
- Department of Chemistry, Hunter College of the City University of New York, New York, NY 10065, USA; Ph.D. Program in Biochemistry, The Graduate Center of the City University of New York, New York, NY 10016, USA; Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10021, USA
| | - Cindy Rodriguez
- Department of Chemistry, Hunter College of the City University of New York, New York, NY 10065, USA; Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10021, USA; Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY 10016, USA
| | - Samantha M Sarrett
- Department of Chemistry, Hunter College of the City University of New York, New York, NY 10065, USA; Ph.D. Program in Biochemistry, The Graduate Center of the City University of New York, New York, NY 10016, USA; Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10021, USA
| | - Eric J Dayts
- Department of Chemistry, Hunter College of the City University of New York, New York, NY 10065, USA
| | - Brian M Zeglis
- Department of Chemistry, Hunter College of the City University of New York, New York, NY 10065, USA; Ph.D. Program in Biochemistry, The Graduate Center of the City University of New York, New York, NY 10016, USA; Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10021, USA; Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY 10016, USA; Department of Radiology, Weill Cornell Medical College, New York, NY 10021, USA
| | - Outi Keinänen
- Department of Chemistry, Hunter College of the City University of New York, New York, NY 10065, USA; Ph.D. Program in Biochemistry, The Graduate Center of the City University of New York, New York, NY 10016, USA; Department of Chemistry, University of Helsinki, Helsinki 00014, Finland.
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23
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Méndez Rodríguez KB, Jiménez Avalos JA, Fernández Macias JC, González Palomo AK. Microplastics: challenges of assessment in biological samples and their implication for in vitro and in vivo effects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:119733-119749. [PMID: 37971585 DOI: 10.1007/s11356-023-30853-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 10/30/2023] [Indexed: 11/19/2023]
Abstract
Microplastics (MPs) have attracted global interest because they have been recognized as emerging pollutants that require urgent attention. MPs are plastic particles with a size between 1 micron and 5 mm (1 µm-5mm); those measuring less than 1 µm are known as nanoplastics (NPs). MP is distributed in the environment in various physical forms that depend on the degradation process, the erosion factors to which it was subjected, or the original form in which it was intentionally manufactured. Humans may be exposed to these pollutants mainly by ingestion or inhalation, which could adversely affect human health with effects that are still unknown due to limitations that are often dependent on their analytical determination and lack of studies over time, as it is a relatively new topic. Therefore, this review focuses on the challenges currently faced by laboratories for determining MPs in different matrices. We highlight the application of methods and techniques to assess the precise levels of exposure to MPs in biological samples. In addition, exposure pathways, sources, and evidence of adverse effects reported in vitro and in vivo studies are described to generate knowledge about their potential threat to human health.
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Affiliation(s)
- Karen Beatriz Méndez Rodríguez
- Coordinación para la Innovación y Aplicación de la Ciencia y Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí (UASLP), San Luis Potosí, San Luis Potosí, México
| | | | - Juan Carlos Fernández Macias
- Coordinación para la Innovación y Aplicación de la Ciencia y Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí (UASLP), San Luis Potosí, San Luis Potosí, México
| | - Ana Karen González Palomo
- Coordinación para la Innovación y Aplicación de la Ciencia y Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí (UASLP), San Luis Potosí, San Luis Potosí, México.
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24
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Yang S, Lee S, Lee Y, Cho JH, Kim SH, Ha ES, Jung YS, Chung HY, Kim MS, Kim HS, Chang SC, Min KJ, Lee J. Cationic nanoplastic causes mitochondrial dysfunction in neural progenitor cells and impairs hippocampal neurogenesis. Free Radic Biol Med 2023; 208:194-210. [PMID: 37553025 DOI: 10.1016/j.freeradbiomed.2023.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 07/20/2023] [Accepted: 08/03/2023] [Indexed: 08/10/2023]
Abstract
Nanoplastics (NPs) exposure to humans can occur through various routes, including the food chain, drinking water, skin contact, and respiration. NPs are plastics with a diameter of less than 100 nm and have the potential to accumulate in tissues, leading to toxic effects. This study aimed to investigate the neurotoxicity of polystyrene NPs on neural progenitor cells (NPCs) and hippocampal neurogenesis in a rodent model. Toxicity screening of polystyrene NPs based on their charge revealed that cationic amine-modified polystyrene (PS-NH3+) exhibited cytotoxicity, while anionic carboxylate-modified polystyrene (PS-COO-) and neutral NPs (PS) did not. NPCs treated with PS-NH3+ showed a significant reduction in growth rate due to G1 cell cycle arrest. PS-NH3+ increased the expression of cell cycle arrest markers p21 and p27, while decreasing cyclin D expression in NPCs. Interestingly, PS-NH3+ accumulated in mitochondria, leading to mitochondrial dysfunction and energy depletion, which caused G1 cell cycle arrest. Prolonged exposure to PS-NH3+ in C17.2 NPCs increased the expression of p16 and senescence-associated secretory phenotype factors, indicating cellular senescence. In vivo studies using C57BL/6 mice demonstrated impaired hippocampal neurogenesis and memory retention after 10 days of PS-NH3+ administration. This study suggests that NPs could deplete neural stem cell pools in the brain by mitochondrial dysfunction, thereby adversely affecting hippocampal neurogenesis and neurocognitive functions.
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Affiliation(s)
- Seonguk Yang
- College of Pharmacy, Research Institute for Drug Development, Pusan National University, Busan, 46241, Republic of Korea
| | - Seulah Lee
- College of Pharmacy, Research Institute for Drug Development, Pusan National University, Busan, 46241, Republic of Korea
| | - Yujeong Lee
- College of Pharmacy, Research Institute for Drug Development, Pusan National University, Busan, 46241, Republic of Korea; Cognitive Science Research Group, Korea Brain Research Institute, Daegu, 41068, Republic of Korea
| | - Jung-Hyun Cho
- College of Pharmacy, Research Institute for Drug Development, Pusan National University, Busan, 46241, Republic of Korea
| | - Sou Hyun Kim
- College of Pharmacy, Research Institute for Drug Development, Pusan National University, Busan, 46241, Republic of Korea
| | - Eun-Sol Ha
- College of Pharmacy, Research Institute for Drug Development, Pusan National University, Busan, 46241, Republic of Korea
| | - Young-Suk Jung
- College of Pharmacy, Research Institute for Drug Development, Pusan National University, Busan, 46241, Republic of Korea
| | - Hae Young Chung
- College of Pharmacy, Research Institute for Drug Development, Pusan National University, Busan, 46241, Republic of Korea
| | - Min-Soo Kim
- College of Pharmacy, Research Institute for Drug Development, Pusan National University, Busan, 46241, Republic of Korea
| | - Hyung Sik Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, 2066, Republic of Korea
| | - Seung-Cheol Chang
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
| | - Kyung-Jin Min
- Department of Biological Sciences, Inha University, Incheon, South Korea
| | - Jaewon Lee
- College of Pharmacy, Research Institute for Drug Development, Pusan National University, Busan, 46241, Republic of Korea.
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25
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Silva MG, Oliveira MM, Peixoto F. Assessing micro and nanoplastics toxicity using rodent models: Investigating potential mitochondrial implications. Toxicology 2023; 499:153656. [PMID: 37879514 DOI: 10.1016/j.tox.2023.153656] [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: 07/22/2023] [Revised: 10/05/2023] [Accepted: 10/20/2023] [Indexed: 10/27/2023]
Abstract
Mitochondria's role as a central hub in cellular metabolism and signaling cascades is well established in the scientific community, being a classic marker of organisms' response to toxicant exposure. Nonetheless, little is known concerning the effects of emerging contaminants, such as microplastics, on mitochondrial metabolism. Micro- and nanoplastics present one of the major problems faced by modern societies. What was once an environmental problem is now recognized as an one-health issue, but little is known concerning microplastic impact on human health. Indeed, only recently, human exposure to microplastics was acknowledged by the World Health Organization, resulting in a growing interest in this research topic. Nonetheless, the mechanisms behind micro- and nanoplastics toxicity are yet to be understood. Animal models, nowadays, are the most appropriate approach to uncovering this knowledge gap. In the present review article, we explore investigations from the last two years using rodent models and reach to find the molecular mechanism behind micro- and nanoplastics toxicity and if mitochondria can act as a target. Although no research article has addressed the effects of mitochondria yet, reports have highlighted molecular and biochemical alterations that could be linked to mitochondrial function. Furthermore, certain studies described the effects of disruptions in mitochondrial metabolism, such as oxidative stress. Micro- and nanoplastics may, directly and indirectly, affect this vital organelle. Investigations concerning this topic should be encouraged once they can bring us closer to understanding the mechanisms underlying these particles' harmful effects on human health.
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Affiliation(s)
- Mónica G Silva
- Chemistry Research Centre (CQ-VR), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal.
| | - Maria Manuel Oliveira
- Chemistry Research Centre (CQ-VR), Chemistry Department, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
| | - Francisco Peixoto
- Chemistry Research Centre (CQ-VR), Biology and Environment Department University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
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26
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Li J, Liu T, Wang J, Wang G, Chen X, Zhang X, Xia Q, Li N. Polystyrene may alter the cooperation mechanism of gut microbiota and immune system through co-exposure with DCBQ. CHEMOSPHERE 2023; 340:139814. [PMID: 37586486 DOI: 10.1016/j.chemosphere.2023.139814] [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: 02/13/2023] [Revised: 05/08/2023] [Accepted: 08/12/2023] [Indexed: 08/18/2023]
Abstract
The toxicity of Polystyrene (PS) may be higher through co-exposure with other pollutants. Human can simultaneously face the challenges from the various pollutants. Nevertheless, little research has been done on the combined effects of PS and 2,6-dichloro-p-benzoquinone (DCBQ) disinfection byproduct. Considering the potential risk of PS and DCBQ, we aimed to illustrate the effects of PS in combination with DCBQ on the immune responses of mice. We found that cotreatment of DCBQ and PS may inhibit the activity of spleen CD4+ T cells and interfere with the normal function of the immune system. Further research found that DCBQ + PS resulted in increasing amount of the inflammatory cells in intestine via histopathological evaluation. The reason might be that DCBQ + PS has changed the composition of intestinal flora, abnormally activated intestinal macrophage, and inhibited the expression of immune-related genes, thus leading to intestinal immune disorders and triggering intestinal inflammation. In summary, PS may alter the cooperation mechanism of gut microbiota and immune system through co-exposure with DCBQ. Current results suggested that more attention should be paid to the combined toxic effects of environmental contaminants.
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Affiliation(s)
- Jinhua Li
- Department of Health Toxicology, School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Ting Liu
- Department of Health Toxicology, School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Jun Wang
- Department of Health Toxicology, School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Gaihua Wang
- Department of Health Toxicology, School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Xin Chen
- Department of Health Toxicology, School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Xu Zhang
- Department of Health Toxicology, School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Qianfeng Xia
- Department of Tropical Diseases, The Second Affiliated Hospital of Hainan Medical University, Key Laboratory of Tropical Translational Medicine of Ministry of Education, NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine, Hainan Medical University, Haikou, Hainan, 571199, China.
| | - Na Li
- Department of Tropical Diseases, The Second Affiliated Hospital of Hainan Medical University, Key Laboratory of Tropical Translational Medicine of Ministry of Education, NHC Key Laboratory of Tropical Disease Control, School of Tropical Medicine, Hainan Medical University, Haikou, Hainan, 571199, China.
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27
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de Jersey AM, Lavers JL, Zosky GR, Rivers-Auty J. The understudied global experiment of pollution's impacts on wildlife and human health: The ethical imperative for interdisciplinary research. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 336:122459. [PMID: 37633432 DOI: 10.1016/j.envpol.2023.122459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 08/02/2023] [Accepted: 08/23/2023] [Indexed: 08/28/2023]
Abstract
The global impact of pollution on human and wildlife health is a growing concern. The health impacts of pollution are significant and far-reaching yet poorly understood as no one field of research has the practices and methodologies required to encapsulate the diversity of these consequences. This paper advocates that interdisciplinary research is essential to comprehend the full extent of the impact of pollution. Medical and ecological research play a key role in investigating the health consequences of the pollution crisis, yet the wildlife experience is often neglected. This paper outlines how applying advanced techniques and expertise adapted in medical research to wildlife exposed to pollutants offers a unique perspective to understanding the full diversity of impacts to health. The challenges that impede the progress of this research include the lack of support for interdisciplinary research among funding streams, limitations in field-specific techniques, and a lack of communication between researchers from different disciplines. Of awarded funding from major national research councils across Australia, Europe, and the United States of America, only 0.5% is dedicated to pollution focused research. This is inclusive of laboratory equipment, mitigation strategies, quantification of environmental samples and health consequences research. Of that, 0.03% of funding is awarded to explaining the wildlife experience and documenting the health consequences observed despite being model organisms to environmentally and biologically relevant models for pollution exposure. This calls for a coordinated effort to overcome these hurdles and to promote interdisciplinary research in order to fully comprehend the consequences of pollution exposure and protect the health of humans, wildlife, and the environment. An interdisciplinary approach to this problem is timely given the magnitude of negative health consequences associated with exposure, the number of pollutants already present within the environment and the continual development of new compounds.
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Affiliation(s)
- Alix M de Jersey
- Tasmanian School of Medicine, College of Health and Medicine, University of Tasmania, Hobart, Tasmania, 7000, Australia
| | - Jennifer L Lavers
- Bird Group, The Natural History Museum, Akeman Street, Tring, Hertfordshire, HP23 6AP, United Kingdom; Esperance Tjaltjraak Native Title Aboriginal Corporation, 11A Shelden Road, Esperance, Western Australia, 6450, Australia.
| | - Graeme R Zosky
- Menzies Institute for Medical Research, College of Health and Medicine, University of Tasmania, Hobart, Tasmania, 7000, Australia
| | - Jack Rivers-Auty
- Tasmanian School of Medicine, College of Health and Medicine, University of Tasmania, Hobart, Tasmania, 7000, Australia
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28
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K C PB, Maharjan A, Acharya M, Lee D, Kusma S, Gautam R, Kwon JT, Kim C, Kim K, Kim H, Heo Y. Polytetrafluorethylene microplastic particles mediated oxidative stress, inflammation, and intracellular signaling pathway alteration in human derived cell lines. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 897:165295. [PMID: 37419366 DOI: 10.1016/j.scitotenv.2023.165295] [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: 03/29/2023] [Revised: 06/30/2023] [Accepted: 07/01/2023] [Indexed: 07/09/2023]
Abstract
Microplastics (MPs) are now widely distributed across the aerial, terrestrial, and aquatic environments. Thus, exposure to MPs via the oral, inhalation, or dermal routes is inevitable. Polytetrafluoroethylene (PTFE)-MPs is mainly used for manufacturing nonstick cookware, semiconductors, and medical devices; however, their toxicity has been rarely studied. In the present study, six different human cell lines, which are representative of tissues and cells that directly or indirectly come into contact with MPs, were exposed to two different sizes of irregular shape PTFE-MPs (with an average diameter of 6.0 or 31.7 μm). PTFE-MPs-mediated cytotoxicity, oxidative stress, and changes in proinflammatory cytokine production were then evaluated. We found that the PTFE-MPs did not induce cytotoxicity under any of the experimental conditions. However, PTFE-MPs (especially average diameter of 6.0 μm) induced nitric oxide and reactive oxygen species production in all the cell lines tested. Moreover, both sizes of PTFE-MPs increased the secretion of tumor necrosis factor alpha and interleukin-6 from the U937 macrophage cell line and the A549 lung epithelial cell line, respectively. In addition, PTFE-MPs activated the MAPK signaling pathways, especially the ERK pathway, in A549 and U937 cells, and in the THP-1 dendritic cell line. We also found that the expression of the NLRP3 inflammasome was reduced in the U937 and THP-1 cell lines following treatment with the PTFE-MPs sized 31.7 μm average diameter. Furthermore, expression of the apoptosis regulator, BCL2, was markedly increased in the A549 and U937 cell lines. Thus, although PTFE-MPs exert different effects on different cell types, our findings suggest that PTFE-MPs-associated toxicity may be specifically linked to the activation of the ERK pathway, which ultimately induces oxidative stress and inflammation.
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Affiliation(s)
- Pramod Bahadur K C
- Graduate School Department of Toxicology, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Anju Maharjan
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 38430 Gyeongsan, Republic of Korea
| | - Manju Acharya
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 38430 Gyeongsan, Republic of Korea
| | - DaEun Lee
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 38430 Gyeongsan, Republic of Korea
| | - Sarina Kusma
- Graduate School Department of Toxicology, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Ravi Gautam
- Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 38430 Gyeongsan, Republic of Korea
| | - Jung-Taek Kwon
- Environmental Health Research Department, National Institute of Environmental Research, 22689 Incheon, Republic of Korea.
| | - ChangYul Kim
- Graduate School Department of Toxicology, Daegu Catholic University, Gyeongsan 38430, Republic of Korea.
| | - KilSoo Kim
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Center, 41061 Daegu, Republic of Korea; College of Veterinary Medicine, Kyungpook National University, 41566 Daegu, Republic of Korea.
| | - HyoungAh Kim
- College of Medicine, Department of Preventive Medicine, The Catholic University of Korea, 06591 Seoul, Republic of Korea.
| | - Yong Heo
- Graduate School Department of Toxicology, Daegu Catholic University, Gyeongsan 38430, Republic of Korea; Department of Occupational Health, College of Bio and Medical Sciences, Daegu Catholic University, 38430 Gyeongsan, Republic of Korea.
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Das A. The emerging role of microplastics in systemic toxicity: Involvement of reactive oxygen species (ROS). THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 895:165076. [PMID: 37391150 DOI: 10.1016/j.scitotenv.2023.165076] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 07/02/2023]
Abstract
Plastic pollution is one of the most pressing environmental threats the world is facing currently. The degradation of macroplastics into smaller forms viz. microplastics (MPs) or Nanoplastics (NPs) is a potential threat to both terrestrial and marine ecosystems and also to human health by directly affecting the organs and activating a plethora of intracellular signaling, that may lead to cell death. There is accumulating evidence that supports the serious toxicity caused by MP/NPs at all levels of biological complexities (biomolecules, organelles, cells, tissues, organs, and organ systems) and the involvement of the reactive oxygen species (ROS) in this process. Studies indicate that MPs or NPs can accumulate in mitochondria and further disrupt the mitochondrial electron transport chain, cause mitochondrial membrane damage, and perturb the mitochondrial membrane potential or depolarization of the mitochondria. These events eventually lead to the generation of different types of reactive free radicals, which can induce DNA damage, protein oxidation, lipid peroxidation, and compromization of the antioxidant defense pool. Furthermore, MP-induced ROS was found to trigger a plethora of signaling cascades, such as the p53 signaling pathway, Mitogen-activated protein kinases (MAPKs) signaling pathway including the c-Jun N-terminal kinases (JNK), p38 kinase, and extracellular signal related kinases (ERK1/2) signaling cascades, Nuclear factor erythroid 2-related factor 2 (Nrf2)-pathway, Phosphatidylinositol-3-kinases (PI3Ks)/Akt signaling pathway, and Transforming growth factor-beta (TGF-β) pathways, to name a few. As a consequence of oxidative stress caused by the MPs/NPs, different types of organ damage are observed in living species, including humans, such as pulmonary toxicity, cardiotoxicity, neurotoxicity, nephrotoxicity, immunotoxicity, reproductive toxicity, hepatotoxicity, etc. Although presently, a good amount of research is going on to access the detrimental effects of MPs/NPs on human health, there is a lack of proper model systems, multi-omics approaches, interdisciplinary research, and mitigation strategies.
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Affiliation(s)
- Amlan Das
- Department of Biochemistry, School of Biosciences, The Assam Royal Global University, NH-37, opp. Tirupati Balaji Temple, Betkuchi, Guwahati, Assam 781035, India.
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Yang Z, DeLoid GM, Zarbl H, Baw J, Demokritou P. Micro- and nanoplastics (MNPs) and their potential toxicological outcomes: State of science, knowledge gaps and research needs. NANOIMPACT 2023; 32:100481. [PMID: 37717636 PMCID: PMC10841092 DOI: 10.1016/j.impact.2023.100481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 08/11/2023] [Accepted: 09/12/2023] [Indexed: 09/19/2023]
Abstract
Plastic waste has been produced at a rapidly growing rate over the past several decades. The environmental impacts of plastic waste on marine and terrestrial ecosystems have been recognized for years. Recently, researchers found that micro- and nanoplastics (MNPs), micron (100 nm - 5 mm) and nanometer (1 - 100 nm) scale particles and fibers produced by degradation and fragmentation of plastic waste in the environment, have become an important emerging environmental and food chain contaminant with uncertain consequences for human health. This review provides a comprehensive summary of recent findings from studies of potential toxicity and adverse health impacts of MNPs in terrestrial mammals, including studies in both in vitro cellular and in vivo mammalian models. Also reviewed here are recently released biomonitoring studies that have characterized the bioaccumulation, biodistribution, and excretion of MNPs in humans. The majority MNPs in the environment to which humans are most likely to be exposed, are of irregular shapes, varied sizes, and mixed compositions, and are defined as secondary MNPs. However, the MNPs used in most toxicity studies to date were commercially available primary MNPs of polystyrene (PS), polyethylene (PE), polyvinyl chloride (PVC), polyethylene terephthalate (PET), and other polymers. The emerging in vitro and in vivo evidence reviewed here suggests that MNP toxicity and bioactivity are largely determined by MNP particle physico-chemical characteristics, including size, shape, polymer type, and surface properties. For human exposure, MNPs have been identified in human blood, urine, feces, and placenta, which pose potential health risks. The evidence to date suggests that the mechanisms underlying MNP toxicity at the cellular level are primarily driven by oxidative stress. Nonetheless, large knowledge gaps in our understanding of MNP toxicity and the potential health impacts of MNP exposures still exist and much further study is needed to bridge those gaps. This includes human population exposure studies to determine the environmentally relevant MNP polymers and exposure concentrations and durations for toxicity studies, as well as toxicity studies employing environmentally relevant MNPs, with surface chemistries and other physico-chemical properties consistent with MNP particles in the environment. It is especially important to obtain comprehensive toxicological data for these MNPs to understand the range and extent of potential adverse impacts of microplastic pollutants on humans and other organisms.
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Affiliation(s)
- Zhenning Yang
- Nanoscience and Advanced Materials Center, Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA; Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA
| | - Glen M DeLoid
- Nanoscience and Advanced Materials Center, Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA; Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA
| | - Helmut Zarbl
- Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA; School of Public Health, Rutgers University, Piscataway, NJ 08854, USA
| | - Joshua Baw
- Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA
| | - Philip Demokritou
- Nanoscience and Advanced Materials Center, Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA; Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA; School of Public Health, Rutgers University, Piscataway, NJ 08854, USA.
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Shahzadi C, Di Serafino A, Aruffo E, Mascitelli A, Di Carlo P. A549 as an In Vitro Model to Evaluate the Impact of Microplastics in the Air. BIOLOGY 2023; 12:1243. [PMID: 37759642 PMCID: PMC10525880 DOI: 10.3390/biology12091243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023]
Abstract
Airborne microplastics raise significant concerns due to their potential health impacts. Having a small size, larger surface area, and penetrative ability into the biological system, makes them hazardous to health. This review article compiles various studies investigating the mechanism of action of polystyrene micro- and nanoplastics affecting lung epithelial cells A549. These inhalable microplastics damage the respiratory system, by triggering a proinflammatory environment, genotoxicity, oxidative stress, morphological changes, and cytotoxic accumulation in A549 cells. PS-NP lung toxicity depends on various factors such as size, surface modifications, concentration, charge, and zeta potential. However, cellular uptake and cytotoxicity mechanisms depend on the cell type. For A549 cells, PS-NPs are responsible for energy imbalance by mitochondrial dysfunction, oxidative stress-mediated cytotoxicity, immunomodulation, and apoptosis. Additionally, PS-NPs have the ability to traverse the placental barrier, posing a risk to offspring. Despite the advancements, the precise mechanisms underlying how prolonged exposure to PS-NPs leads to the development and progression of lung diseases have unclear points, necessitating further investigations to unravel the root cause. This review also sheds light on data gaps, inconsistencies in PS-Nos research, and provides recommendations for further research in this field.
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Affiliation(s)
- Chman Shahzadi
- Center of Advanced Studies and Technology (CAST), University of “G. d’ Annunzio” Chieti Pescara, 66100 Chieti, Italy; (C.S.); (A.D.S.); (E.A.); (P.D.C.)
- University School for Advanced Studies IUSS Pavia, 27100 Pavia, Italy
| | - Alessandra Di Serafino
- Center of Advanced Studies and Technology (CAST), University of “G. d’ Annunzio” Chieti Pescara, 66100 Chieti, Italy; (C.S.); (A.D.S.); (E.A.); (P.D.C.)
| | - Eleonora Aruffo
- Center of Advanced Studies and Technology (CAST), University of “G. d’ Annunzio” Chieti Pescara, 66100 Chieti, Italy; (C.S.); (A.D.S.); (E.A.); (P.D.C.)
- Department of Advanced Technologies in Medicine and Dentistry, University of “G. d’ Annunzio” Chieti Pescara, 66100 Chieti, Italy
| | - Alessandra Mascitelli
- Center of Advanced Studies and Technology (CAST), University of “G. d’ Annunzio” Chieti Pescara, 66100 Chieti, Italy; (C.S.); (A.D.S.); (E.A.); (P.D.C.)
- Department of Advanced Technologies in Medicine and Dentistry, University of “G. d’ Annunzio” Chieti Pescara, 66100 Chieti, Italy
| | - Piero Di Carlo
- Center of Advanced Studies and Technology (CAST), University of “G. d’ Annunzio” Chieti Pescara, 66100 Chieti, Italy; (C.S.); (A.D.S.); (E.A.); (P.D.C.)
- Department of Advanced Technologies in Medicine and Dentistry, University of “G. d’ Annunzio” Chieti Pescara, 66100 Chieti, Italy
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Kim HY, Ashim J, Park S, Kim W, Ji S, Lee SW, Jung YR, Jeong SW, Lee SG, Kim HC, Lee YJ, Kwon MK, Hwang JS, Shin JM, Lee SJ, Yu W, Park JK, Choi SK. A preliminary study about the potential risks of the UV-weathered microplastic: The proteome-level changes in the brain in response to polystyrene derived weathered microplastics. ENVIRONMENTAL RESEARCH 2023; 233:116411. [PMID: 37354929 DOI: 10.1016/j.envres.2023.116411] [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: 04/21/2023] [Revised: 06/08/2023] [Accepted: 06/11/2023] [Indexed: 06/26/2023]
Abstract
The growing use of plastic materials has resulted in a constant increase in the risk associated with microplastics (MPs). Ultra-violet (UV) light and wind break down modify MPs in the environment into smaller particles known as weathered MPs (WMPs) and these processes increase the risk of MP toxicity. The neurotoxicity of weathered polystyrene-MPs remains unclear. Therefore, it is important to understand the risks posed by WMPs. We evaluated the chemical changes of WMPs generated under laboratory-synchronized environmentally mimetic conditions and compared them with virgin MPs (VMPs). We found that WMP had a rough surface, slight yellow color, reduced molecular weight, and structural alteration compared with those of VMP. Next, 2 μg of ∼100 μm in size of WMP and VMP were orally administered once a day for one week to C57BL/6 male mice. Proteomic analysis revealed that the WMP group had significantly increased activation of immune and neurodegeneration-related pathways compared with that of the VMP group. Consistently, in in vitro experiments, the human brain-derived microglial cell line (HMC-3) also exhibited a more severe inflammatory response to WMP than to VMP. These results show that WMP is a more profound inflammatory factor than VMP. In summary, our findings demonstrate the toxicity of WMPs and provide theoretical insights into their potential risks to biological systems and even humans in the ecosystem.
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Affiliation(s)
- Hee-Yeon Kim
- Core Protein Resources Center, DGIST, Daegu, Republic of Korea; College of Veterinary Medicine, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Janbolat Ashim
- Department of Brain Sciences, DGIST, Daegu, Republic of Korea
| | - Song Park
- Core Protein Resources Center, DGIST, Daegu, Republic of Korea; Department of Brain Sciences, DGIST, Daegu, Republic of Korea
| | - Wansoo Kim
- School of Life Science, BK21 FOUR KNU Creative Bioresearch Group, Kyungpook National University, Daegu, Republic of Korea; Division of Biotechnology, DGIST, Daegu, Republic of Korea
| | - Sangho Ji
- Department of Brain Sciences, DGIST, Daegu, Republic of Korea
| | - Seoung-Woo Lee
- Core Protein Resources Center, DGIST, Daegu, Republic of Korea; Division of Biotechnology, DGIST, Daegu, Republic of Korea
| | - Yi-Rang Jung
- Department of Companion Animal Health Management, Daegu Health College, Daegu, Republic of Korea
| | - Sang Won Jeong
- Division of Biotechnology, DGIST, Daegu, Republic of Korea
| | - Se-Guen Lee
- Division of Biotechnology, DGIST, Daegu, Republic of Korea
| | - Hyun-Chul Kim
- Division of Biotechnology, DGIST, Daegu, Republic of Korea
| | - Young-Jae Lee
- Division of Biotechnology, DGIST, Daegu, Republic of Korea
| | - Mi Kyung Kwon
- Division of Biotechnology, DGIST, Daegu, Republic of Korea
| | | | - Jung Min Shin
- Division of Biotechnology, DGIST, Daegu, Republic of Korea
| | - Sung-Jun Lee
- Division of Biotechnology, DGIST, Daegu, Republic of Korea.
| | - Wookyung Yu
- Core Protein Resources Center, DGIST, Daegu, Republic of Korea; Department of Brain Sciences, DGIST, Daegu, Republic of Korea.
| | - Jin-Kyu Park
- College of Veterinary Medicine, Kyungpook National University, Daegu, 41566, Republic of Korea.
| | - Seong-Kyoon Choi
- Core Protein Resources Center, DGIST, Daegu, Republic of Korea; Division of Biotechnology, DGIST, Daegu, Republic of Korea.
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Lukić Bilela L, Matijošytė I, Krutkevičius J, Alexandrino DAM, Safarik I, Burlakovs J, Gaudêncio SP, Carvalho MF. Impact of per- and polyfluorinated alkyl substances (PFAS) on the marine environment: Raising awareness, challenges, legislation, and mitigation approaches under the One Health concept. MARINE POLLUTION BULLETIN 2023; 194:115309. [PMID: 37591052 DOI: 10.1016/j.marpolbul.2023.115309] [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: 03/17/2023] [Revised: 07/09/2023] [Accepted: 07/16/2023] [Indexed: 08/19/2023]
Abstract
Per- and polyfluorinated alkyl substances (PFAS) have long been known for their detrimental effects on the ecosystems and living organisms; however the long-term impact on the marine environment is still insufficiently recognized. Based on PFAS persistence and bioaccumulation in the complex marine food network, adverse effects will be exacerbated by global processes such as climate change and synergies with other pollutants, like microplastics. The range of fluorochemicals currently included in the PFAS umbrella has significantly expanded due to the updated OECD definition, raising new concerns about their poorly understood dynamics and negative effects on the ocean wildlife and human health. Mitigation challenges and approaches, including biodegradation and currently studied materials for PFAS environmental removal are proposed here, highlighting the importance of ongoing monitoring and bridging research gaps. The PFAS EU regulations, good practices and legal frameworks are discussed, with emphasis on recommendations for improving marine ecosystem management.
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Affiliation(s)
- Lada Lukić Bilela
- Department of Biology, Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina.
| | - Inga Matijošytė
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Sauletekio ave. 7, Vilnius, Lithuania.
| | - Jokūbas Krutkevičius
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Sauletekio ave. 7, Vilnius, Lithuania.
| | - Diogo A M Alexandrino
- CIIMAR Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal; Department of Environmental Health, School of Health, P. Porto, Porto, Portugal.
| | - Ivo Safarik
- Department of Nanobiotechnology, Biology Centre, ISBB, CAS, Na Sadkach 7, 370 05 Ceske Budejovice, Czech Republic; Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacky University, Slechtitelu 27, 783 71 Olomouc, Czech Republic
| | - Juris Burlakovs
- Mineral and Energy Economy Research Institute of Polish Academy of Sciences, Józefa Wybickiego 7 A, 31-261 Kraków, Poland.
| | - Susana P Gaudêncio
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University Lisbon, 2819-516 Caparica, Portugal; UCIBIO - Applied Molecular Biosciences Unit, Chemistry Department, NOVA Faculty for Sciences and Technology, NOVA University of Lisbon, 2819-516 Caparica, Portugal.
| | - Maria F Carvalho
- CIIMAR Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal; School of Medicine and Biomedical Sciences (ICBAS), University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal.
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34
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Rede D, Delerue-Matos C, Fernandes VC. The Microplastics Iceberg: Filling Gaps in Our Understanding. Polymers (Basel) 2023; 15:3356. [PMID: 37631413 PMCID: PMC10459591 DOI: 10.3390/polym15163356] [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: 06/20/2023] [Revised: 08/03/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
Plastic is an indispensable material in modern society; however, high production rates combined with inadequate waste management and disposal have resulted in enormous stress on ecosystems. In addition, plastics can become smaller particles known as microplastics (MPs) due to physical, chemical, and biological drivers. MP pollution has become a significant environmental problem affecting terrestrial and aquatic ecosystems worldwide. Although the topic is not entirely new, it is of great importance to the field of polymers, drawing attention to specific gaps in the existing literature, identifying future areas of research, and improving the understanding of MP pollution and its environmental impacts. Despite progress in this field, problems remain. The lack of standardized methods for MP sampling, separation, extraction, and detection makes it difficult to collect information and establish links between studies. In addition, the distribution and pathways of MPs in ecosystems remain unknown because of their heterogeneous nature and the complex matrices in which they occur. Second, toxicological tests showed that MPs can be ingested by a wide range of organisms, such as Danio rerio and Eisenia fetida, resulting in gut obstruction, physical damage, histological changes, and oxidative stress. The uptake of MP and their toxicological effects depend on their shape, size, concentration, and polymer composition. Furthermore, MPs can enter the food chain, raising concerns regarding potential contaminations for human and environmental health. This review paper sheds light on the pressing issue of MP pollution and highlights the need for interdisciplinary collaboration between scientists, policymakers, and industry leaders.
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Affiliation(s)
- Diana Rede
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal; (D.R.); (C.D.-M.)
- Departamento de Química, Faculdade de Ciências, Universidade do Porto, rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Cristina Delerue-Matos
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal; (D.R.); (C.D.-M.)
| | - Virgínia Cruz Fernandes
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4249-015 Porto, Portugal; (D.R.); (C.D.-M.)
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Baek SM, Kim TU, Lee YJ, Lee SW, Yim JH, Kim WJ, Kim HY, Kang KK, Kim SD, Park SJ, Choi SK, Park JK. Disrupted intestinal mucosal barrier mediated by alcohol consumption aggravates systemic microplastic accumulation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115342. [PMID: 37567104 DOI: 10.1016/j.ecoenv.2023.115342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023]
Abstract
Waste plastics are degraded into microplastics (MPs), which are easily accumulated in the human body through digestive tracts, via the food chain. Alcohol is a widely consumed chemical throughout the world with the ability to alter the intestinal barrier. For this reason, this study was aimed to investigate exact relevance between alcohol consumption and organ distributions of MPs in an ethanol feeding animal model characterized by disrupted intestinal mucosal barriers. In this study, C57BL/6 mice were separated into control, control + MP, ethanol (EtOH), and EtOH + MP groups. Mice in the EtOH group ingested a Lieber-DeCarli diet containing EtOH. Mice in the MP groups ingested 0.1 mg/kg fluorophore polymerized polystyrene microplastics via oral gavage polystyrene MPs via oral gavage. The EtOH + MP group showed higher MP accumulation in the liver than the control + MP group. The same pattern was observed in the intestines, spleen, and brain. This pattern was more prominent in the intestines, with the EtOH + MP group showing the most severe damage due to EtOH ingestion. This result suggests that the intestinal mucosa disruption caused by EtOH ingestion exacerbates MP accumulation in the organs. Moreover, hepatic steatosis was more severe in the EtOH + MP group than in the EtOH group, suggesting the secondary manifestation mediated by MP accumulation. This study reports a novel MP accumulation pattern in the body by providing novel insights into alcohol-induced gut permeability and microplastics toxicity from the perspective of gut-liver axis.
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Affiliation(s)
- Su-Min Baek
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; Cardiovascular Research Institute, Kyungpook National University, Daegu 41944, Republic of Korea
| | - Tae-Un Kim
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Young-Jin Lee
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Seoung-Woo Lee
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; Core Protein Resources Center, Daegu-Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Jae-Hyuk Yim
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Woo Jun Kim
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Hee-Yeon Kim
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; Core Protein Resources Center, Daegu-Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Kyung-Ku Kang
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41016, Republic of Korea
| | - Sung Dae Kim
- College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sang-Joon Park
- College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Seong-Kyoon Choi
- Core Protein Resources Center, Daegu-Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea.
| | - Jin-Kyu Park
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea.
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Han Q, Gao X, Wang S, Wei Z, Wang Y, Xu K, Chen M. Co-exposure to polystyrene microplastics and di-(2-ethylhexyl) phthalate aggravates allergic asthma through the TRPA1-p38 MAPK pathway. Toxicol Lett 2023; 384:73-85. [PMID: 37500026 DOI: 10.1016/j.toxlet.2023.07.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 07/03/2023] [Accepted: 07/20/2023] [Indexed: 07/29/2023]
Abstract
Increasing attention has been paid to the potential impact of microplastics (MPs) pollution on human health. MPs and phthalates coexist in the environment, however, the effects of exposure to MPs alone or to a combination of di-(2-ethylhexyl) phthalate (DEHP) and MPs on allergic asthma are unclear. This study investigates the effects of exposure to polystyrene microplastics (PS-MPs) or co-exposure with DEHP, on allergic asthma, and the underlying molecular mechanisms. We established an allergic asthma model using ovalbumin, and mice were exposed to PS-MPs (5 mg/kg bw/day) alone, or combined with DEHP (0.5, 5 mg/kg bw/day), for 28 days. The results showed that in the presence of ovalbumin (OVA) sensitization, exposure to PS-MPs alone slightly affected airway inflammation, and airway hyperresponsiveness, while co-exposure to PS-MPs and DEHP caused more significant damage. Co-exposure also induced more oxidative stress and Th2 immune responses, and activation of the TRPA1 and p38 MAPK pathways. The aggravation of asthmatic symptoms induced by co-exposure to PS-MPs and DEHP were inhibited by blocking TRPA1 ion channel or p38 MAPK pathway. The results demonstrated that co-exposure to PS-MPs and DEHP exacerbates allergic asthma, by exacerbating oxidative stress and inflammatory responses, and activating the TRPA1-p38 MAPK pathway.
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Affiliation(s)
- Qi Han
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Xiao Gao
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Shuwei Wang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Zhaolan Wei
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Yunyi Wang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Ke Xu
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Mingqing Chen
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China.
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37
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Chang DY, Jeong S, Shin J, Park J, Park CR, Choi S, Chun CH, Chae MY, Lim BC. First quantification and chemical characterization of atmospheric microplastics observed in Seoul, South Korea. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 327:121481. [PMID: 37003584 DOI: 10.1016/j.envpol.2023.121481] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/20/2023] [Accepted: 03/20/2023] [Indexed: 06/19/2023]
Abstract
This study is the first report on atmospheric microplastics (MPs) observed in five outdoor environments, including an urban forest, a business center, commercial areas, and a public transportation hub in Seoul, South Korea. Air samples were collected using an active air pump sampler for 24 h in each area only on days without rainfall. All observed microplastics are secondary microplastics, in the form of irregularly-shaped fragments or fibers produced through various degradation processes, rather than being primarily produced like microbeads. The abundance of atmospheric MPs varied depending on the environment (i.e., region, height, and time) from 0.33 to 1.21 MP m-3, with the average number of MPs being 0.72 MP m-3 (standard deviation ± 0.39). MPs in the urban forest was observed to be 27% lower in abundance than that in the urban center which is ∼3 km away. The central business district was observed to have a 25% higher abundance during weekdays than on weekends. Our results show the ubiquity of MPs in various areas from high-rise buildings to forests tens of kilometers away from their direct sources, and a positive correlation between the abundance of MP and human activity. Morphologically, the fragment type (87.4%) predominated over the fiber type (12.6%), and chemically, polypropylene (PP) and polyethylene terephthalate (PET) components accounted for 65% of the total MP. PP polymers were found in all observation sites and contributed to 59% of the total MP fragments. The observed fibrous MPs were mainly composed of PET (72.7%) and PP (18.2%) polymers. Compared to other large cities (Shanghai, Beijing, Paris), Seoul is exposed to low levels of atmospheric MPs and high proportions of PP polymers. This study is limited to atmospheric MPs observed in summer and further investigation of MPs is needed to comprehensively understand the distribution and cycle of MPs based on long-term monitoring of atmospheric MPs.
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Affiliation(s)
- Dong Yeong Chang
- Department of Environmental Planning, Graduate School of Environmental Studies, Seoul National University, Seoul, Republic of Korea
| | - Sujong Jeong
- Department of Environmental Planning, Graduate School of Environmental Studies, Seoul National University, Seoul, Republic of Korea.
| | - Jaewon Shin
- Department of Environmental Planning, Graduate School of Environmental Studies, Seoul National University, Seoul, Republic of Korea
| | - Jungmin Park
- Department of Environmental Planning, Graduate School of Environmental Studies, Seoul National University, Seoul, Republic of Korea
| | - Chan Ryul Park
- Urban Forests Division, National Institute of Forest Science, Seoul, Republic of Korea
| | - Sumin Choi
- Urban Forests Division, National Institute of Forest Science, Seoul, Republic of Korea
| | - Chi-Hwan Chun
- Institute of Technology, CESCO Co., Seoul, Republic of Korea
| | - Min-Young Chae
- Institute of Technology, CESCO Co., Seoul, Republic of Korea
| | - Byung Chul Lim
- Institute of Technology, CESCO Co., Seoul, Republic of Korea
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Jin YJ, Kim JE, Roh YJ, Song HJ, Seol A, Park J, Lim Y, Seo S, Hwang DY. Characterisation of changes in global genes expression in the lung of ICR mice in response to the inflammation and fibrosis induced by polystyrene nanoplastics inhalation. Toxicol Res 2023:1-25. [PMID: 37360972 PMCID: PMC10201517 DOI: 10.1007/s43188-023-00188-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 04/15/2023] [Accepted: 04/26/2023] [Indexed: 06/28/2023] Open
Abstract
This study characterised the changes in global gene expression in the lung of ICR mice in response to the inflammation and fibrosis induced by the inhalation of 0.5 μm polystyrene (PS)-nanoplastics (NPs) at various concentrations (4, 8, and 16 μg/mL) for 2 weeks. The total RNA extracted from the lung tissue of NPs-inhaled mice was hybridised into oligonucleotide microarrays. Significant upregulation was detected in several inflammatory responses, including the number of immune cells in bronchoalveolar lavage fluid (BALF), the expression level of inflammatory cytokines, mucin secretion, and histopathological changes, while they accumulated average of 13.38 ± 1.0 μg/g in the lungs of the inhaled ICR mice. Similar responses were observed regarding the levels of fibrosis-related factors in the NPs-inhaled lung of ICR mice, such as pulmonary parenchymal area, expression of pro-fibrotic marker genes, and TGF-β1 downstream signalling without any significant hepatotoxicity and nephrotoxicity. In microarray analyses, 60 genes were upregulated, and 55 genes were downregulated in the lung of ICR mice during inflammation and fibrosis induced by NPs inhalation compared to the Vehicle-inhaled mice. Among these genes, many were categorised into several ontology categories, including the anatomical structure, binding, membrane, and metabolic process. Furthermore, the major genes in the upregulated categories included Igkv14-126000, Egr1, Scel, Lamb3, and Upk3b. In contrast, the major genes in the down-regulated categories were Olfr417, Olfr519, Rps16, Rap2b, and Vmn1r193. These results suggest several gene functional groups and individual genes as specific biomarkers respond to inflammation and fibrosis induced by PS-NPs inhalation in ICR mice. Supplementary Information The online version contains supplementary material available at 10.1007/s43188-023-00188-y.
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Affiliation(s)
- You Jeong Jin
- Department of Biomaterials Science (BK21 FOUR Program)/Life and Industry Convergence Research Institute/Laboratory Animals Resources Center, College of Natural Resources and Life Science, Pusan National University, Miryang, 50463 Republic of Korea
| | - Ji Eun Kim
- Department of Biomaterials Science (BK21 FOUR Program)/Life and Industry Convergence Research Institute/Laboratory Animals Resources Center, College of Natural Resources and Life Science, Pusan National University, Miryang, 50463 Republic of Korea
| | - Yu Jeong Roh
- Department of Biomaterials Science (BK21 FOUR Program)/Life and Industry Convergence Research Institute/Laboratory Animals Resources Center, College of Natural Resources and Life Science, Pusan National University, Miryang, 50463 Republic of Korea
| | - Hee Jin Song
- Department of Biomaterials Science (BK21 FOUR Program)/Life and Industry Convergence Research Institute/Laboratory Animals Resources Center, College of Natural Resources and Life Science, Pusan National University, Miryang, 50463 Republic of Korea
| | - Ayun Seol
- Department of Biomaterials Science (BK21 FOUR Program)/Life and Industry Convergence Research Institute/Laboratory Animals Resources Center, College of Natural Resources and Life Science, Pusan National University, Miryang, 50463 Republic of Korea
| | - Jumin Park
- Department of Food Science and Nutrition, College of Human Ecology, Pusan National University, Busan, 46241 Republic of Korea
| | - Yong Lim
- Department of Clinical Laboratory Science, College of Nursing and Healthcare Science, Dong-Eui University, Busan, 47340 Republic of Korea
| | - Sungbaek Seo
- Department of Biomaterials Science (BK21 FOUR Program)/Life and Industry Convergence Research Institute/Laboratory Animals Resources Center, College of Natural Resources and Life Science, Pusan National University, Miryang, 50463 Republic of Korea
| | - Dae Youn Hwang
- Department of Biomaterials Science (BK21 FOUR Program)/Life and Industry Convergence Research Institute/Laboratory Animals Resources Center, College of Natural Resources and Life Science, Pusan National University, Miryang, 50463 Republic of Korea
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Chen X, Xu L, Chen Q, Su S, Zhuang J, Qiao D. Polystyrene micro- and nanoparticles exposure induced anxiety-like behaviors, gut microbiota dysbiosis and metabolism disorder in adult mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 259:115000. [PMID: 37210994 DOI: 10.1016/j.ecoenv.2023.115000] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 05/04/2023] [Accepted: 05/08/2023] [Indexed: 05/23/2023]
Abstract
Plastics have been proven to be a potential threat to the ecosystem, and their toxicity mechanism is still uncertain. In the ecological environment, plastics can be degraded into microplastics (MPs) and nanoplastics (NPs), which can be contaminated and ingested through the food chain. MPs and NPs are associated with severe intestinal injury, intestinal microbiota disorder, and neurotoxicity, but it is still unclear whether MPs- and NPs-induced intestinal microbiota dysbiosis will affect the brain through the gut-brain axis. In the current study, we determined the effects of exposure to polystyrene (PS)-MPs and PS-NPs on anxiety-like behaviors and explored the underlying mechanisms. This study explored the behavioral effects of 30-day and 60-day exposure to PS-NPs and PS-MPs using the open field test (OFT) and elevated plus maze (EPM) test. Behavioral tests showed PS-NPs and PS-MPs treatment remarkedly induced anxiety-like behaviors compared with the control group. Using 16 S rRNA gene sequencing and untargeted metabolomics analyses, we observed that PS-MPs and PS-NPs exposure reduced the beneficial gut microbiota expression level, such as Lachnoclostridium and Lactobacillus, and increased the conditionally pathogenic bacteria expressions level, such as Proteobacteria, Actinobacteria, and Desulfovibrio. In addition, PS-NPs and PS-MPs reduce intestinal mucus secretion and increase intestinal permeability. The results of serum metabonomics suggested that the metabolic pathways, such as ABC transporter pathways, aminoacyl-tRNA biosynthesis, biosynthesis of amino acids, and bile secretion were enriched after PS-NPs and PS-MPs treatment. Besides, neurotransmitter metabolites were also altered by PS-NPs and PS-MPs. It is noteworthy that the correlation analysis showed that the disorder of intestinal microbiota was related to anxiety-like behaviors and neurotransmitter metabolites disorder. The regulation of intestinal microbiota may be a promising treatment strategy for PS-MPs- and PS-NPs-induced anxiety disorder.
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Affiliation(s)
- Xuebing Chen
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identiffcation, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Luyao Xu
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identiffcation, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Qianling Chen
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identiffcation, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Shuying Su
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identiffcation, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Jingshen Zhuang
- Division of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Dongfang Qiao
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identiffcation, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China.
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Lee S, Kim D, Kang KK, Sung SE, Choi JH, Sung M, Shin CH, Jeon E, Kim D, Kim D, Lee S, Kim HK, Kim K. Toxicity and Biodistribution of Fragmented Polypropylene Microplastics in ICR Mice. Int J Mol Sci 2023; 24:ijms24108463. [PMID: 37239816 DOI: 10.3390/ijms24108463] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/28/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023] Open
Abstract
Currently, polypropylene (PP) is used in various products, thus leading to high daily exposure in humans. Thus, it is necessary to evaluate the toxicological effects, biodistribution, and accumulation of PP microplastics in the human body. In this study, administration of two particle sizes of PP microplastics (approximately 5 and 10-50 µm) did not lead to any significant changes in several toxicological evaluation parameters, including body weight and pathological examination, compared with the control group in ICR mice. Therefore, the approximate lethal dose and no-observed-adverse-effect level of PP microplastics in ICR mice were established as ≥2000 mg/kg. Furthermore, we manufactured cyanine 5.5 carboxylic acid (Cy5.5-COOH)-labeled fragmented PP microplastics to monitor real-time in vivo biodistribution. After oral administration of the Cy5.5-COOH-labeled microplastics to the mice, most of the PP microplastics were detected in the gastrointestinal tract and observed to be out of the body after 24 h in IVIS Spectrum CT. Therefore, this study provides a new insight into the short-term toxicity, distribution, and accumulation of PP microplastics in mammals.
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Affiliation(s)
- Sijoon Lee
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea
| | - Dongseon Kim
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea
- Department of Medical & Biological Engineering, Kyungpook National University, 80 Dahakro, Buk-gu, Daegu 41566, Republic of Korea
| | - Kyung-Ku Kang
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea
| | - Soo-Eun Sung
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea
| | - Joo-Hee Choi
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea
| | - Minkyoung Sung
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea
| | - Chang-Hoon Shin
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea
- Department of Pharmacology, School of Dentistry, Kyungpook National University, 80 Dahakro, Buk-gu, Daegu 41566, Republic of Korea
| | - Eunyoung Jeon
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea
| | - Dongkyu Kim
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea
| | - Dongmin Kim
- Korea Institute of Industrial Technology, Chenan 31056, Republic of Korea
| | - Sunjong Lee
- Korea Institute of Industrial Technology, Chenan 31056, Republic of Korea
| | - Hee-Kyung Kim
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea
| | - Kilsoo Kim
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41061, Republic of Korea
- College of Veterinary Medicine, Kyungpook National University, 80 Dahakro, Buk-gu, Daegu 41566, Republic of Korea
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Grote K, Brüstle F, Vlacil AK. Cellular and Systemic Effects of Micro- and Nanoplastics in Mammals-What We Know So Far. MATERIALS (BASEL, SWITZERLAND) 2023; 16:3123. [PMID: 37109957 PMCID: PMC10145381 DOI: 10.3390/ma16083123] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/05/2023] [Accepted: 04/13/2023] [Indexed: 06/19/2023]
Abstract
Microplastics (MP) and nanoplastics (NP) are accumulating more and more in our environment and have been frequently detected in water and soil, but also in a variety of mainly marine organisms. Polymers such as polyethylene, polypropylene, and polystyrene are those most commonly found. Once in the environment, MP/NP are carriers for many other substances, which often convey toxic effects. Even though intuitively it is thought that ingesting MP/NP cannot be healthy, little is known about their effects on mammalian cells and organisms so far. To better understand the potential hazards of MP/NP on humans and to offer an overview of the already associated pathological effects, we conducted a comprehensive literature review on cellular effects, as well as experimental animal studies on MP/NP in mammals.
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Affiliation(s)
- Karsten Grote
- Cardiology and Angiology, Philipps-University Marburg, 35037 Marburg, Germany
| | - Fabian Brüstle
- Cardiology and Angiology, Philipps-University Marburg, 35037 Marburg, Germany
| | - Ann-Kathrin Vlacil
- Stem Cell Unit, Department of Cardiovascular Research, Humanitas Research Hospital, 20089 Milan, Italy
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Landrigan PJ, Raps H, Cropper M, Bald C, Brunner M, Canonizado EM, Charles D, Chiles TC, Donohue MJ, Enck J, Fenichel P, Fleming LE, Ferrier-Pages C, Fordham R, Gozt A, Griffin C, Hahn ME, Haryanto B, Hixson R, Ianelli H, James BD, Kumar P, Laborde A, Law KL, Martin K, Mu J, Mulders Y, Mustapha A, Niu J, Pahl S, Park Y, Pedrotti ML, Pitt JA, Ruchirawat M, Seewoo BJ, Spring M, Stegeman JJ, Suk W, Symeonides C, Takada H, Thompson RC, Vicini A, Wang Z, Whitman E, Wirth D, Wolff M, Yousuf AK, Dunlop S. The Minderoo-Monaco Commission on Plastics and Human Health. Ann Glob Health 2023; 89:23. [PMID: 36969097 PMCID: PMC10038118 DOI: 10.5334/aogh.4056] [Citation(s) in RCA: 48] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 02/14/2023] [Indexed: 03/29/2023] Open
Abstract
Background Plastics have conveyed great benefits to humanity and made possible some of the most significant advances of modern civilization in fields as diverse as medicine, electronics, aerospace, construction, food packaging, and sports. It is now clear, however, that plastics are also responsible for significant harms to human health, the economy, and the earth's environment. These harms occur at every stage of the plastic life cycle, from extraction of the coal, oil, and gas that are its main feedstocks through to ultimate disposal into the environment. The extent of these harms not been systematically assessed, their magnitude not fully quantified, and their economic costs not comprehensively counted. Goals The goals of this Minderoo-Monaco Commission on Plastics and Human Health are to comprehensively examine plastics' impacts across their life cycle on: (1) human health and well-being; (2) the global environment, especially the ocean; (3) the economy; and (4) vulnerable populations-the poor, minorities, and the world's children. On the basis of this examination, the Commission offers science-based recommendations designed to support development of a Global Plastics Treaty, protect human health, and save lives. Report Structure This Commission report contains seven Sections. Following an Introduction, Section 2 presents a narrative review of the processes involved in plastic production, use, and disposal and notes the hazards to human health and the environment associated with each of these stages. Section 3 describes plastics' impacts on the ocean and notes the potential for plastic in the ocean to enter the marine food web and result in human exposure. Section 4 details plastics' impacts on human health. Section 5 presents a first-order estimate of plastics' health-related economic costs. Section 6 examines the intersection between plastic, social inequity, and environmental injustice. Section 7 presents the Commission's findings and recommendations. Plastics Plastics are complex, highly heterogeneous, synthetic chemical materials. Over 98% of plastics are produced from fossil carbon- coal, oil and gas. Plastics are comprised of a carbon-based polymer backbone and thousands of additional chemicals that are incorporated into polymers to convey specific properties such as color, flexibility, stability, water repellence, flame retardation, and ultraviolet resistance. Many of these added chemicals are highly toxic. They include carcinogens, neurotoxicants and endocrine disruptors such as phthalates, bisphenols, per- and poly-fluoroalkyl substances (PFAS), brominated flame retardants, and organophosphate flame retardants. They are integral components of plastic and are responsible for many of plastics' harms to human health and the environment.Global plastic production has increased almost exponentially since World War II, and in this time more than 8,300 megatons (Mt) of plastic have been manufactured. Annual production volume has grown from under 2 Mt in 1950 to 460 Mt in 2019, a 230-fold increase, and is on track to triple by 2060. More than half of all plastic ever made has been produced since 2002. Single-use plastics account for 35-40% of current plastic production and represent the most rapidly growing segment of plastic manufacture.Explosive recent growth in plastics production reflects a deliberate pivot by the integrated multinational fossil-carbon corporations that produce coal, oil and gas and that also manufacture plastics. These corporations are reducing their production of fossil fuels and increasing plastics manufacture. The two principal factors responsible for this pivot are decreasing global demand for carbon-based fuels due to increases in 'green' energy, and massive expansion of oil and gas production due to fracking.Plastic manufacture is energy-intensive and contributes significantly to climate change. At present, plastic production is responsible for an estimated 3.7% of global greenhouse gas emissions, more than the contribution of Brazil. This fraction is projected to increase to 4.5% by 2060 if current trends continue unchecked. Plastic Life Cycle The plastic life cycle has three phases: production, use, and disposal. In production, carbon feedstocks-coal, gas, and oil-are transformed through energy-intensive, catalytic processes into a vast array of products. Plastic use occurs in every aspect of modern life and results in widespread human exposure to the chemicals contained in plastic. Single-use plastics constitute the largest portion of current use, followed by synthetic fibers and construction.Plastic disposal is highly inefficient, with recovery and recycling rates below 10% globally. The result is that an estimated 22 Mt of plastic waste enters the environment each year, much of it single-use plastic and are added to the more than 6 gigatons of plastic waste that have accumulated since 1950. Strategies for disposal of plastic waste include controlled and uncontrolled landfilling, open burning, thermal conversion, and export. Vast quantities of plastic waste are exported each year from high-income to low-income countries, where it accumulates in landfills, pollutes air and water, degrades vital ecosystems, befouls beaches and estuaries, and harms human health-environmental injustice on a global scale. Plastic-laden e-waste is particularly problematic. Environmental Findings Plastics and plastic-associated chemicals are responsible for widespread pollution. They contaminate aquatic (marine and freshwater), terrestrial, and atmospheric environments globally. The ocean is the ultimate destination for much plastic, and plastics are found throughout the ocean, including coastal regions, the sea surface, the deep sea, and polar sea ice. Many plastics appear to resist breakdown in the ocean and could persist in the global environment for decades. Macro- and micro-plastic particles have been identified in hundreds of marine species in all major taxa, including species consumed by humans. Trophic transfer of microplastic particles and the chemicals within them has been demonstrated. Although microplastic particles themselves (>10 µm) appear not to undergo biomagnification, hydrophobic plastic-associated chemicals bioaccumulate in marine animals and biomagnify in marine food webs. The amounts and fates of smaller microplastic and nanoplastic particles (MNPs <10 µm) in aquatic environments are poorly understood, but the potential for harm is worrying given their mobility in biological systems. Adverse environmental impacts of plastic pollution occur at multiple levels from molecular and biochemical to population and ecosystem. MNP contamination of seafood results in direct, though not well quantified, human exposure to plastics and plastic-associated chemicals. Marine plastic pollution endangers the ocean ecosystems upon which all humanity depends for food, oxygen, livelihood, and well-being. Human Health Findings Coal miners, oil workers and gas field workers who extract fossil carbon feedstocks for plastic production suffer increased mortality from traumatic injury, coal workers' pneumoconiosis, silicosis, cardiovascular disease, chronic obstructive pulmonary disease, and lung cancer. Plastic production workers are at increased risk of leukemia, lymphoma, hepatic angiosarcoma, brain cancer, breast cancer, mesothelioma, neurotoxic injury, and decreased fertility. Workers producing plastic textiles die of bladder cancer, lung cancer, mesothelioma, and interstitial lung disease at increased rates. Plastic recycling workers have increased rates of cardiovascular disease, toxic metal poisoning, neuropathy, and lung cancer. Residents of "fenceline" communities adjacent to plastic production and waste disposal sites experience increased risks of premature birth, low birth weight, asthma, childhood leukemia, cardiovascular disease, chronic obstructive pulmonary disease, and lung cancer.During use and also in disposal, plastics release toxic chemicals including additives and residual monomers into the environment and into people. National biomonitoring surveys in the USA document population-wide exposures to these chemicals. Plastic additives disrupt endocrine function and increase risk for premature births, neurodevelopmental disorders, male reproductive birth defects, infertility, obesity, cardiovascular disease, renal disease, and cancers. Chemical-laden MNPs formed through the environmental degradation of plastic waste can enter living organisms, including humans. Emerging, albeit still incomplete evidence indicates that MNPs may cause toxicity due to their physical and toxicological effects as well as by acting as vectors that transport toxic chemicals and bacterial pathogens into tissues and cells.Infants in the womb and young children are two populations at particularly high risk of plastic-related health effects. Because of the exquisite sensitivity of early development to hazardous chemicals and children's unique patterns of exposure, plastic-associated exposures are linked to increased risks of prematurity, stillbirth, low birth weight, birth defects of the reproductive organs, neurodevelopmental impairment, impaired lung growth, and childhood cancer. Early-life exposures to plastic-associated chemicals also increase the risk of multiple non-communicable diseases later in life. Economic Findings Plastic's harms to human health result in significant economic costs. We estimate that in 2015 the health-related costs of plastic production exceeded $250 billion (2015 Int$) globally, and that in the USA alone the health costs of disease and disability caused by the plastic-associated chemicals PBDE, BPA and DEHP exceeded $920 billion (2015 Int$). Plastic production results in greenhouse gas (GHG) emissions equivalent to 1.96 gigatons of carbon dioxide (CO2e) annually. Using the US Environmental Protection Agency's (EPA) social cost of carbon metric, we estimate the annual costs of these GHG emissions to be $341 billion (2015 Int$).These costs, large as they are, almost certainly underestimate the full economic losses resulting from plastics' negative impacts on human health and the global environment. All of plastics' economic costs-and also its social costs-are externalized by the petrochemical and plastic manufacturing industry and are borne by citizens, taxpayers, and governments in countries around the world without compensation. Social Justice Findings The adverse effects of plastics and plastic pollution on human health, the economy and the environment are not evenly distributed. They disproportionately affect poor, disempowered, and marginalized populations such as workers, racial and ethnic minorities, "fenceline" communities, Indigenous groups, women, and children, all of whom had little to do with creating the current plastics crisis and lack the political influence or the resources to address it. Plastics' harmful impacts across its life cycle are most keenly felt in the Global South, in small island states, and in disenfranchised areas in the Global North. Social and environmental justice (SEJ) principles require reversal of these inequitable burdens to ensure that no group bears a disproportionate share of plastics' negative impacts and that those who benefit economically from plastic bear their fair share of its currently externalized costs. Conclusions It is now clear that current patterns of plastic production, use, and disposal are not sustainable and are responsible for significant harms to human health, the environment, and the economy as well as for deep societal injustices.The main driver of these worsening harms is an almost exponential and still accelerating increase in global plastic production. Plastics' harms are further magnified by low rates of recovery and recycling and by the long persistence of plastic waste in the environment.The thousands of chemicals in plastics-monomers, additives, processing agents, and non-intentionally added substances-include amongst their number known human carcinogens, endocrine disruptors, neurotoxicants, and persistent organic pollutants. These chemicals are responsible for many of plastics' known harms to human and planetary health. The chemicals leach out of plastics, enter the environment, cause pollution, and result in human exposure and disease. All efforts to reduce plastics' hazards must address the hazards of plastic-associated chemicals. Recommendations To protect human and planetary health, especially the health of vulnerable and at-risk populations, and put the world on track to end plastic pollution by 2040, this Commission supports urgent adoption by the world's nations of a strong and comprehensive Global Plastics Treaty in accord with the mandate set forth in the March 2022 resolution of the United Nations Environment Assembly (UNEA).International measures such as a Global Plastics Treaty are needed to curb plastic production and pollution, because the harms to human health and the environment caused by plastics, plastic-associated chemicals and plastic waste transcend national boundaries, are planetary in their scale, and have disproportionate impacts on the health and well-being of people in the world's poorest nations. Effective implementation of the Global Plastics Treaty will require that international action be coordinated and complemented by interventions at the national, regional, and local levels.This Commission urges that a cap on global plastic production with targets, timetables, and national contributions be a central provision of the Global Plastics Treaty. We recommend inclusion of the following additional provisions:The Treaty needs to extend beyond microplastics and marine litter to include all of the many thousands of chemicals incorporated into plastics.The Treaty needs to include a provision banning or severely restricting manufacture and use of unnecessary, avoidable, and problematic plastic items, especially single-use items such as manufactured plastic microbeads.The Treaty needs to include requirements on extended producer responsibility (EPR) that make fossil carbon producers, plastic producers, and the manufacturers of plastic products legally and financially responsible for the safety and end-of-life management of all the materials they produce and sell.The Treaty needs to mandate reductions in the chemical complexity of plastic products; health-protective standards for plastics and plastic additives; a requirement for use of sustainable non-toxic materials; full disclosure of all components; and traceability of components. International cooperation will be essential to implementing and enforcing these standards.The Treaty needs to include SEJ remedies at each stage of the plastic life cycle designed to fill gaps in community knowledge and advance both distributional and procedural equity.This Commission encourages inclusion in the Global Plastic Treaty of a provision calling for exploration of listing at least some plastic polymers as persistent organic pollutants (POPs) under the Stockholm Convention.This Commission encourages a strong interface between the Global Plastics Treaty and the Basel and London Conventions to enhance management of hazardous plastic waste and slow current massive exports of plastic waste into the world's least-developed countries.This Commission recommends the creation of a Permanent Science Policy Advisory Body to guide the Treaty's implementation. The main priorities of this Body would be to guide Member States and other stakeholders in evaluating which solutions are most effective in reducing plastic consumption, enhancing plastic waste recovery and recycling, and curbing the generation of plastic waste. This Body could also assess trade-offs among these solutions and evaluate safer alternatives to current plastics. It could monitor the transnational export of plastic waste. It could coordinate robust oceanic-, land-, and air-based MNP monitoring programs.This Commission recommends urgent investment by national governments in research into solutions to the global plastic crisis. This research will need to determine which solutions are most effective and cost-effective in the context of particular countries and assess the risks and benefits of proposed solutions. Oceanographic and environmental research is needed to better measure concentrations and impacts of plastics <10 µm and understand their distribution and fate in the global environment. Biomedical research is needed to elucidate the human health impacts of plastics, especially MNPs. Summary This Commission finds that plastics are both a boon to humanity and a stealth threat to human and planetary health. Plastics convey enormous benefits, but current linear patterns of plastic production, use, and disposal that pay little attention to sustainable design or safe materials and a near absence of recovery, reuse, and recycling are responsible for grave harms to health, widespread environmental damage, great economic costs, and deep societal injustices. These harms are rapidly worsening.While there remain gaps in knowledge about plastics' harms and uncertainties about their full magnitude, the evidence available today demonstrates unequivocally that these impacts are great and that they will increase in severity in the absence of urgent and effective intervention at global scale. Manufacture and use of essential plastics may continue. However, reckless increases in plastic production, and especially increases in the manufacture of an ever-increasing array of unnecessary single-use plastic products, need to be curbed.Global intervention against the plastic crisis is needed now because the costs of failure to act will be immense.
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Affiliation(s)
- Philip J. Landrigan
- Global Observatory on Planetary Health, Boston College, Chestnut Hill, MA, US
- Centre Scientifique de Monaco, Medical Biology Department, MC
| | - Hervé Raps
- Centre Scientifique de Monaco, Medical Biology Department, MC
| | - Maureen Cropper
- Economics Department, University of Maryland, College Park, US
| | - Caroline Bald
- Global Observatory on Planetary Health, Boston College, Chestnut Hill, MA, US
| | | | | | | | | | | | | | - Patrick Fenichel
- Université Côte d’Azur
- Centre Hospitalier, Universitaire de Nice, FR
| | - Lora E. Fleming
- European Centre for Environment and Human Health, University of Exeter Medical School, UK
| | | | | | | | - Carly Griffin
- Global Observatory on Planetary Health, Boston College, Chestnut Hill, MA, US
| | - Mark E. Hahn
- Biology Department, Woods Hole Oceanographic Institution, US
- Woods Hole Center for Oceans and Human Health, US
| | - Budi Haryanto
- Department of Environmental Health, Universitas Indonesia, ID
- Research Center for Climate Change, Universitas Indonesia, ID
| | - Richard Hixson
- College of Medicine and Health, University of Exeter, UK
| | - Hannah Ianelli
- Global Observatory on Planetary Health, Boston College, Chestnut Hill, MA, US
| | - Bryan D. James
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution
- Department of Biology, Woods Hole Oceanographic Institution, US
| | | | - Amalia Laborde
- Department of Toxicology, School of Medicine, University of the Republic, UY
| | | | - Keith Martin
- Consortium of Universities for Global Health, US
| | - Jenna Mu
- Global Observatory on Planetary Health, Boston College, Chestnut Hill, MA, US
| | | | - Adetoun Mustapha
- Nigerian Institute of Medical Research, Lagos, Nigeria
- Lead City University, NG
| | - Jia Niu
- Department of Chemistry, Boston College, US
| | - Sabine Pahl
- University of Vienna, Austria
- University of Plymouth, UK
| | | | - Maria-Luiza Pedrotti
- Laboratoire d’Océanographie de Villefranche sur mer (LOV), Sorbonne Université, FR
| | | | | | - Bhedita Jaya Seewoo
- Minderoo Foundation, AU
- School of Biological Sciences, The University of Western Australia, AU
| | | | - John J. Stegeman
- Biology Department and Woods Hole Center for Oceans and Human Health, Woods Hole Oceanographic Institution, US
| | - William Suk
- Superfund Research Program, National Institutes of Health, National Institute of Environmental Health Sciences, US
| | | | - Hideshige Takada
- Laboratory of Organic Geochemistry (LOG), Tokyo University of Agriculture and Technology, JP
| | | | | | - Zhanyun Wang
- Technology and Society Laboratory, WEmpa-Swiss Federal Laboratories for Materials and Technology, CH
| | - Ella Whitman
- Global Observatory on Planetary Health, Boston College, Chestnut Hill, MA, US
| | | | | | - Aroub K. Yousuf
- Global Observatory on Planetary Health, Boston College, Chestnut Hill, MA, US
| | - Sarah Dunlop
- Minderoo Foundation, AU
- School of Biological Sciences, The University of Western Australia, AU
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Xuan L, Xiao L, Huang R. The geno-toxicological impacts of microplastic (MP) exposure on health: mechanistic pathways and research trends from a Chinese perspective. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2023; 25:26-36. [PMID: 36337004 DOI: 10.1039/d2em00301e] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Due to their large-scale manufacture and widespread application, global concern regarding microplastics (MPs) has been increasing rapidly over the past decade, in particular their potential genotoxicity. The genome is constantly exposed to genotoxic insults that can lead to accumulation of reactive oxygen species (ROS), DNA damage, cell death, inflammation or genetic regulation which in turn can have consequences for health, such as the induction of carcinogenesis. In this review, we presented a comprehensive landscape of the effects of MPs on genotoxicity including the molecular mechanisms. Followed by the MP research trend analysis from a global viewpoint including the comparative research between China and USA and point out that scientists should continue to substantially contribute to the field of MPs through more extensive academic investigation, global cooperation, and the development of novel control methods. Challenges are also discussed. Overall, this review provides insights into the genotoxic effects of MPs on human health and related research trends in this field.
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Affiliation(s)
- Lihui Xuan
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China.
| | - Liang Xiao
- Faculty of Naval Medicine, Naval Medical University (Second Military Medical University), Shanghai, 200433, China.
| | - Ruixue Huang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China.
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Barboza LGA, Otero XL, Fernández EV, Vieira LR, Fernandes JO, Cunha SC, Guilhermino L. Are microplastics contributing to pollution-induced neurotoxicity? A pilot study with wild fish in a real scenario. Heliyon 2023; 9:e13070. [PMID: 36711285 PMCID: PMC9880392 DOI: 10.1016/j.heliyon.2023.e13070] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 01/22/2023] Open
Abstract
Pollution-induced neurotoxicity is of high concern. This pilot study investigated the potential relationship between the presence of microplastics (MPs) in the brain of 180 wild fish (Dicentrarchus labrax, Platichthys flesus, Mugil cephalus) from a contaminated estuary and the activity of the acetylcholinesterase (AChE) enzyme. MPs were found in 9 samples (5% of the total), all of them from D. labrax collected in the summer, which represents 45% of the samples of this species collected in that season (20). Seventeen MPs were recovered from brain samples, with sizes ranging from 8 to 96 μm. Polyacrylamide, polyacrylic acid and one biopolymer (zein) were identified by Micro-Raman spectroscopy. Fish with MPs showed lower (p ≤ 0.05) AChE activity than those where MPs were not found. These findings point to the contribution of MPs to the neurotoxicity induced by long-term exposure to pollution, stressing the need of further studies on the topic to increase 'One Health' protection.
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Affiliation(s)
- Luís Gabriel A. Barboza
- CIIMAR – Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Research Team of Ecotoxicology, Stress Ecology and Environmental Health (ECOTOX), Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal,ICBAS – School of Medicine and Biomedical Sciences, University of Porto, Department of Populations Study, Laboratory of Ecotoxicology and Ecology (ECOTOX), Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal,Corresponding author. CIIMAR – Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Research Team of Ecotoxicology, Stress Ecology and Environmental Health (ECOTOX), Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal.
| | - Xosé L. Otero
- CRETUS Institute, Department of Edaphology and Agricultural Chemistry - Faculty of Biology, Universidade de Santiago de Compostela, Campus Vida, Santiago de Compostela, 15782, Spain,REBUSC, Network of Biological stations of the University of Santiago de Compostela, Marine Biology Station A Graña, Ferrol, Spain
| | - Ezequiel V. Fernández
- RIAIDT, The Network of Infrastructures to Support Research and Technological Development of the University of Santiago de Compostela, Edificio Cactus, Campus Vida, Santiago de Compostela, 15782, Spain
| | - Luís R. Vieira
- CIIMAR – Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Research Team of Ecotoxicology, Stress Ecology and Environmental Health (ECOTOX), Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal,ICBAS – School of Medicine and Biomedical Sciences, University of Porto, Department of Populations Study, Laboratory of Ecotoxicology and Ecology (ECOTOX), Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - José O. Fernandes
- LAQV-REQUIMTE, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Sara C. Cunha
- LAQV-REQUIMTE, Laboratory of Bromatology and Hydrology, Faculty of Pharmacy, University of Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Lúcia Guilhermino
- CIIMAR – Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Research Team of Ecotoxicology, Stress Ecology and Environmental Health (ECOTOX), Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal,ICBAS – School of Medicine and Biomedical Sciences, University of Porto, Department of Populations Study, Laboratory of Ecotoxicology and Ecology (ECOTOX), Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
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Kadac-Czapska K, Knez E, Gierszewska M, Olewnik-Kruszkowska E, Grembecka M. Microplastics Derived from Food Packaging Waste-Their Origin and Health Risks. MATERIALS (BASEL, SWITZERLAND) 2023; 16:674. [PMID: 36676406 PMCID: PMC9866676 DOI: 10.3390/ma16020674] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/04/2023] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
Plastics are commonly used for packaging in the food industry. The most popular thermoplastic materials that have found such applications are polyethylene (PE), polypropylene (PP), poly(ethylene terephthalate) (PET), and polystyrene (PS). Unfortunately, most plastic packaging is disposable. As a consequence, significant amounts of waste are generated, entering the environment, and undergoing degradation processes. They can occur under the influence of mechanical forces, temperature, light, chemical, and biological factors. These factors can present synergistic or antagonistic effects. As a result of their action, microplastics are formed, which can undergo further fragmentation and decomposition into small-molecule compounds. During the degradation process, various additives used at the plastics' processing stage can also be released. Both microplastics and additives can negatively affect human and animal health. Determination of the negative consequences of microplastics on the environment and health is not possible without knowing the course of degradation processes of packaging waste and their products. In this article, we present the sources of microplastics, the causes and places of their formation, the transport of such particles, the degradation of plastics most often used in the production of packaging for food storage, the factors affecting the said process, and its effects.
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Affiliation(s)
- Kornelia Kadac-Czapska
- Department of Bromatology, Faculty of Pharmacy, Medical University of Gdańsk, 80-416 Gdańsk, Poland
| | - Eliza Knez
- Department of Bromatology, Faculty of Pharmacy, Medical University of Gdańsk, 80-416 Gdańsk, Poland
| | - Magdalena Gierszewska
- Department of Physical Chemistry and Physicochemistry of Polymers, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland
| | - Ewa Olewnik-Kruszkowska
- Department of Physical Chemistry and Physicochemistry of Polymers, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland
| | - Małgorzata Grembecka
- Department of Bromatology, Faculty of Pharmacy, Medical University of Gdańsk, 80-416 Gdańsk, Poland
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Cheng Y, Yang S, Yin L, Pu Y, Liang G. Recent consequences of micro-nanaoplastics (MNPLs) in subcellular/molecular environmental pollution toxicity on human and animals. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 249:114385. [PMID: 36508803 DOI: 10.1016/j.ecoenv.2022.114385] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 11/25/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
Microplastics and Nanoplastics (MNPLs) pollution has been recognized as the important environmental pollution caused by human activities in addition to global warming, ozone layer depletion and ocean acidification. Most of the current studies have focused on the toxic effects caused by plastics and have not actively investigated the mechanisms causing cell death, especially at the subcellular level. The main content of this paper focuses on two aspects, one is a review of the current status of MNPLs contamination and recent advances in toxicological studies, which highlights the possible concentration levels of MNPLs in the environment and the internal exposure of humans. It is also proposed to pay attention to the compound toxicity of MNPLs as carriers of other environmental pollutants and pathogenic factors. Secondly, subcellular toxicity is discussed and the modes of entry and intracellular distribution of smaller-size MNPLs are analyzed, with particular emphasis on the importance of organelle damage to elucidate the mechanism of toxicity. Importantly, MNPLs are a new type of environmental pollutant and researchers need to focus not only on their toxicity, but also work with governments to develop measures to reduce plastic emissions, optimize degradation and control plastic aggression against organisms, especially humans, from multiple perspectives.
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Affiliation(s)
- Yanping Cheng
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, PR China.
| | - Sheng Yang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, PR China.
| | - Lihong Yin
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, PR China.
| | - Yuepu Pu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, PR China.
| | - Geyu Liang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, PR China.
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Li M, Hou Z, Meng R, Hao S, Wang B. Unraveling the potential human health risks from used disposable face mask-derived micro/nanoplastics during the COVID-19 pandemic scenario: A critical review. ENVIRONMENT INTERNATIONAL 2022; 170:107644. [PMID: 36413926 PMCID: PMC9671534 DOI: 10.1016/j.envint.2022.107644] [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: 10/04/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 06/09/2023]
Abstract
With the global spread of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), disposable face masks (DFMs) have caused negative environmental impacts. DFMs will release microplastics (MPs) and nanoplastics (NPs) during environmental degradation. However, few studies reveal the release process of MPs/NPs from masks in the natural environment. This review presents the current knowledge on the abiotic and biotic degradation of DFMs. Though MPs and NPs have raised serious concerns about their potentially detrimental effects on human health, little attention was paid to their impacts on human health from DFM-derived MPs and NPs. The potential toxicity of mask-derived MPs/NPs, such as gastrointestinal toxicity, pneumotoxicity, neurotoxicity, hepatotoxicity, reproductive and transgenerational toxicity, and the underlying mechanism will be discussed in the present study. MPs/NPs serve as carriers of toxic chemicals and pathogens, leading to their bioaccumulation and adverse effects of biomagnification by food chains. Given human experiments are facing ethical issues and animal studies cannot completely reveal human characteristics, advanced human organoids will provide promising models for MP/NP risk assessment. Moreover, in-depth investigations are required to identify the release of MPs/NPs from discarded face masks and characterize their transportation through the food chains. More importantly, innovative approaches and eco-friendly strategies are urgently demanded to reduce DFM-derived MP/NP pollution.
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Affiliation(s)
- Minghui Li
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400030, China; Southwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Zongkun Hou
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400030, China
| | - Run Meng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400030, China
| | - Shilei Hao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400030, China.
| | - Bochu Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400030, China.
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Jiménez‐Arroyo C, Tamargo A, Molinero N, Moreno‐Arribas MV. The gut microbiota, a key to understanding the health implications of micro(nano)plastics and their biodegradation. Microb Biotechnol 2022; 16:34-53. [PMID: 36415969 PMCID: PMC9803334 DOI: 10.1111/1751-7915.14182] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 11/08/2022] [Indexed: 11/24/2022] Open
Abstract
The effects of plastic debris on the environment and plant, animal, and human health are a global challenge, with micro(nano)plastics (MNPs) being the main focus. MNPs are found so often in the food chain that they are provoking an increase in human intake. They have been detected in most categories of consumed foods, drinking water, and even human feces. Therefore, oral ingestion becomes the main source of exposure to MNPs, and the gastrointestinal tract, primarily the gut, constantly interacts with these small particles. The consequences of human exposure to MNPs remain unclear. However, current in vivo studies and in vitro gastrointestinal tract models have shown that MNPs of several types and sizes impact gut intestinal bacteria, affecting gut homeostasis. The typical microbiome signature of MNP ingestion is often associated with dysbiosis and loss of resilience, leads to frequent pathogen outbreaks, and local and systemic metabolic disorders. Moreover, the small micro- and nano-plastic particles found in animal tissues with accumulated evidence of microbial degradation of plastics/MNPs by bacteria and insect gut microbiota raise the issue of whether human gut bacteria make key contributions to the bio-transformation of ingested MNPs. Here, we discuss these issues and unveil the complex interplay between MNPs and the human gut microbiome. Therefore, the elucidation of the biological consequences of this interaction on both host and microbiota is undoubtedly challenging. It is expected that microbial biotechnology and microbiome research could help decipher the extent to which gut microorganisms diversify and MNP-determinant species, mechanisms, and enzymatic systems, as well as become important to understand our response to MNP exposure and provide background information to inspire future holistic studies.
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Affiliation(s)
| | - Alba Tamargo
- Instituto de Investigación en Ciencias de la Alimentación (CIAL)CSIC‐UAMMadridSpain
| | - Natalia Molinero
- Instituto de Investigación en Ciencias de la Alimentación (CIAL)CSIC‐UAMMadridSpain
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Ramachandraiah K, Ameer K, Jiang G, Hong GP. Micro- and nanoplastic contamination in livestock production: Entry pathways, potential effects and analytical challenges. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 844:157234. [PMID: 35810901 DOI: 10.1016/j.scitotenv.2022.157234] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
The abundant and widespread presence of particulate plastics in the environment is considered an area of increasing environmental, animal and human health concern. Despite the abundance and the potential to cause deleterious biological effects, studies related to the impact of micro and nanoplastics (MNPs) on livestock animals are limited. This review evaluates the sources and entry pathways of particulate plastics in all the types of livestock production systems. The potential health effects of MNPs on mouse models, ruminant animals and a few other livestock animals are discussed. Since evaluation of MNPs in almost all types of matrices in hindered by analytical challenges, this review also evaluates the commonly used methods, emerging techniques, and quality control/quality assurance (QC/QA) procedures. Plastic mulching, fragmentation of plastic wastes and stream water runoff have been identified as major routes of MNPs entry in grazing-based and mixed livestock production systems. Notwithstanding the controlled indoor environment and relatively efficient waste management, MNPs have been detected in industrial livestock systems. The bioaccumulation and biomagnification of chemical toxicants can exacerbate the adverse effects of MNPs on higher trophic level species. Although there are several methods for the analysis of MNPs, dearth of standardized methods, certified reference materials, MPs standards, and global database libraries are major impediments. The adverse effects of MNPs on the internal organs of different livestock animals have to be studied using large sample sizes and without raising ethical concerns. Importantly, investigations on the accurate quantification of MNPs and its adverse effects in various livestock animals using rapid, cost-effective and robust analytical methods are required.
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Affiliation(s)
- Karna Ramachandraiah
- Department of Food Science and Biotechnology, Sejong University, Seoul 05006, Republic of Korea.
| | - Kashif Ameer
- Institute of Food Science and Nutrition, University of Sargodha, Sargodha 40100, Pakistan
| | - Guihun Jiang
- School of Public Health, Jilin Medical University, Jilin 132013, China
| | - Geun-Pyo Hong
- Department of Food Science and Biotechnology, Sejong University, Seoul 05006, Republic of Korea
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Abstract
Plastic waste pollution is one of the biggest problems in the world today. The amount of plastic in the environment continues to increase, and human exposure to microplastic (MP) has become a reality. This subject has attracted the attention of the whole world. The MP problem has also been noticed by the scientific community. The term microplastic is mostly used to define synthetic material with a high polymer content that can have a size range from 0.1 to 5000 µm. This paper aims to characterize the routes of exposure to MP, define its pollution sources, and identify food types contaminated with plastics. This review addresses the current state of knowledge on this type of particles, with particular emphasis on their influence on human health. Adverse effects of MP depend on routes and sources of exposure. The most common route of exposure is believed to be the gastrointestinal tract. Sources of MP include fish, shellfish, water as well as tea, beer, wine, energy drinks, soft drinks, milk, salt, sugar, honey, poultry meat, fruits, and vegetables. Studies have shown that particles of PET, PE, PP, PS, PVC, PA, and PC are the most frequently found in food.
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Affiliation(s)
- Kornelia Kadac-Czapska
- Department of Bromatology, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - Eliza Knez
- Department of Bromatology, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - Małgorzata Grembecka
- Department of Bromatology, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
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