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Chen Y, Zeng Q, Luo Y, Song M, He X, Sheng H, Gao X, Zhu Z, Sun J, Cao C. Polystyrene microplastics aggravate radiation-induced intestinal injury in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 283:116834. [PMID: 39106569 DOI: 10.1016/j.ecoenv.2024.116834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 07/17/2024] [Accepted: 08/01/2024] [Indexed: 08/09/2024]
Abstract
Radiotherapy is a common treatment for abdominal and pelvic tumors, while the radiation-induced intestinal injury (RIII) is one of the major side-effects of radiotherapy, which reduces the life quality and impedes the treatment completion of cancer patients. Previous studies have demonstrated that environmental pollutant microplastics led to various kinds of injury in the gut, but its effects on RIII are still uncovered. In this study, we fed the C57BL/6J mice with distilled water or 50 μg/d polystyrene microplastics (PSMPs) for 17 days and exposed the mice to total abdominal irradiation (TAI) at day 14. Then the severity of RIII was examined by performing histopathological analysis and microbial community analysis. The results demonstrated that PSMPs significantly aggravated RIII in small intestine rather than colon of mice upon TAI. PSMPs increased levels of the histopathological damage and the microbial community disturbance in mice small intestine, shown by the overabundance of Akkermansiaceae and the decrease of microflora including Lactobacillaceae, Muribaculaceae and Bifidobacteriaceae. In conclusion, our results suggested that more microplastics exposure might led to more severe RIII, which should be considered in patients' daily diet adjustment and clinical radiotherapy plan evaluation. Furthermore, this study also called for the further researches to uncover the underlying mechanism and develop novel strategies to attenuate RIII in mice intestine.
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Affiliation(s)
- Yiyao Chen
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Qin Zeng
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yongyi Luo
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Miao Song
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xinrong He
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Hailong Sheng
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xinna Gao
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhenru Zhu
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Jingyuan Sun
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Chuanhui Cao
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
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Du L, Liu H, Song X, Feng X, Xu H, Tang W, Yang J. Developments in the field of intestinal toxicity and signaling pathways associated with rodent exposure to micro(nano)plastics. Toxicology 2024; 507:153883. [PMID: 38996996 DOI: 10.1016/j.tox.2024.153883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 07/01/2024] [Accepted: 07/07/2024] [Indexed: 07/14/2024]
Abstract
The broad spread of micro(nano)plastics (MNPs) has garnered significant attention in recent years. MNPs have been detected in numerous human organs, indicating that they may also be hazardous to humans. The toxic effects of MNPs have been demonstrated in marine species and experimental animals. The primary pathway and target organ for MNPs entering the human body is the intestinal system, and increasing research has been done on the harmful effects and subsequent mechanisms of exposure to MNPs. Studies on how MNPs affect gut health in humans are scarce, nevertheless. Since rodents are frequently employed as animal models for human ailments, research on rodents exposed to MNPs can provide a more accurate representation of human circumstances. This study examined the effects of MNPs on intestinal microecology, inflammation, barrier function, and ion transport channels in rodents. It also reviewed the signal pathways involved, such as oxidative stress, nuclear factor (NF)-κB, Toll-like receptor (TLR) 4, inflammatory corpuscles, muscarinic acetylcholine receptors (mAChRs), mitogen-activated protein kinase (MAPK), and cell death. This review will offer a conceptual framework for the management and avoidance of associated illnesses.
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Affiliation(s)
- Lixia Du
- Department of Gastroenterology, Chengdu BOE Hospital, Chengdu 610219, China
| | - Hong Liu
- Department of Gastroenterology, The First People's Hospital of Shuangliu District (West China (Airport) Hospital of Sichuan University), Chengdu 610200, China.
| | - Xuan Song
- Center of Reproductive Medicine, Chengdu BOE Hospital, Chengdu 610219, China
| | - Xiaoqian Feng
- Department of Comprehensive Pediatric Internal Medicine, Chongqing University Three Gorges Hospital, Chongqing 404010, China
| | - Hui Xu
- Department of Gastroenterology, Chengdu BOE Hospital, Chengdu 610219, China
| | - Wei Tang
- Center of Endoscopy, Chengdu BOE Hospital, Chengdu 610219, China
| | - Jie Yang
- Center of Endoscopy, Chengdu BOE Hospital, Chengdu 610219, China
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Cao Y, Bi L, Chen Q, Liu Y, Zhao H, Jin L, Peng R. Understanding the links between micro/nanoplastics-induced gut microbes dysbiosis and potential diseases in fish: A review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 352:124103. [PMID: 38734053 DOI: 10.1016/j.envpol.2024.124103] [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: 03/16/2024] [Revised: 04/29/2024] [Accepted: 05/02/2024] [Indexed: 05/13/2024]
Abstract
At present, the quantity of micro/nano plastics in the environment is steadily rising, and their pollution has emerged as a global environmental issue. The tendency of their bioaccumulation in aquatic organisms (especially fish) has intensified people's attention to their persistent ecotoxicology. This review critically studies the accumulation of fish in the intestines of fish through active or passive intake of micro/nano plastics, resulting in their accumulation in intestinal organs and subsequent disturbance of intestinal microflora. The key lies in the complex toxic effect on the host after the disturbance of fish intestinal microflora. In addition, this review pointed out the characteristics of micro/nano plastics and the effects of their combined toxicity with adsorbed pollutants on fish intestinal microorganisms, in order to fully understand the characteristics of micro/nano plastics and emphasize the complex interaction between MNPs and other pollutants. We have an in-depth understanding of MNPs-induced intestinal flora disorders and intestinal dysfunction, affecting the host's systemic system, including immune system, nervous system, and reproductive system. The review also underscores the imperative for future research to investigate the toxic effects of prolonged exposure to MNPs, which are crucial for evaluating the ecological risks posed by MNPs and devising strategies to safeguard aquatic organisms.
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Affiliation(s)
- Yu Cao
- Institute of Life Sciences & Biomedicine Collaborative Innovation Center of Zhejiang province, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China
| | - Liuliu Bi
- Institute of Life Sciences & Biomedicine Collaborative Innovation Center of Zhejiang province, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China
| | - Qianqian Chen
- Institute of Life Sciences & Biomedicine Collaborative Innovation Center of Zhejiang province, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China
| | - Yinai Liu
- Institute of Life Sciences & Biomedicine Collaborative Innovation Center of Zhejiang province, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China
| | - Haiyang Zhao
- Institute of Life Sciences & Biomedicine Collaborative Innovation Center of Zhejiang province, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China
| | - Libo Jin
- Institute of Life Sciences & Biomedicine Collaborative Innovation Center of Zhejiang province, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China
| | - Renyi Peng
- Institute of Life Sciences & Biomedicine Collaborative Innovation Center of Zhejiang province, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China.
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Zhang X, Wang J, Liu Y, Wang H, Li B, Li Q, Wang Y, Zong Y, Wang J, Meng Q, Wu S, Hao R, Li X, Chen R, Chen H. In situ profiling reveals spatially metabolic injury in the initiation of polystyrene nanoplastic-derived intestinal epithelial injury in mice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172037. [PMID: 38575003 DOI: 10.1016/j.scitotenv.2024.172037] [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: 02/01/2024] [Revised: 03/22/2024] [Accepted: 03/26/2024] [Indexed: 04/06/2024]
Abstract
Despite increasing concerns regarding the harmful effects of plastic-induced gut injury, mechanisms underlying the initiation of plastic-derived intestinal toxicity remain unelucidated. Here, mice were subjected to long-term exposure to polystyrene nanoplastics (PS-NPs) of varying sizes (80, 200, and 1000 nm) at doses relevant to human dietary exposure. PS-NPs exposure did not induce a significant inflammatory response, histopathological damage, or intestinal epithelial dysfunction in mice at a dosage of 0.5 mg/kg/day for 28 days. However, PS-NPs were detected in the mouse intestine, coupled with observed microstructural changes in enterocytes, including mild villous lodging, mitochondrial membrane rupture, and endoplasmic reticulum (ER) dysfunction, suggesting that intestinal-accumulating PS-NPs resulted in the onset of intestinal epithelial injury in mice. Mechanistically, intragastric PS-NPs induced gut microbiota dysbiosis and specific bacteria alterations, accompanied by abnormal metabolic fingerprinting in the plasma. Furthermore, integrated data from mass spectrometry imaging-based spatial metabolomics and metallomics revealed that PS-NPs exposure led to gut dysbiosis-associated host metabolic reprogramming and initiated intestinal injury. These findings provide novel insights into the critical gut microbial-host metabolic remodeling events vital to nanoplastic-derived-initiated intestinal injury.
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Affiliation(s)
- Xianan Zhang
- School of Public Health, Capital Medical University, Beijing 100069, China; Yanjing Medical College, Capital Medical University, Beijing 101300, China
| | - Jing Wang
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Yuansheng Liu
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Hemin Wang
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Bin Li
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Qing Li
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Yi Wang
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Yuru Zong
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Jiajia Wang
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Qingtao Meng
- School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Laboratory of Allergic Diseases, Beijing Municipal Education Commission, Beijing 100069, China
| | - Shenshen Wu
- School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Laboratory of Allergic Diseases, Beijing Municipal Education Commission, Beijing 100069, China
| | - Rongzhang Hao
- School of Public Health, Capital Medical University, Beijing 100069, China
| | - Xiaobo Li
- School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Laboratory of Allergic Diseases, Beijing Municipal Education Commission, Beijing 100069, China.
| | - Rui Chen
- School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Laboratory of Allergic Diseases, Beijing Municipal Education Commission, Beijing 100069, China; Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China; Department of Occupational and Environmental Health, Fourth Military Medical University, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Xi'an 710032, China.
| | - Hanqing Chen
- School of Public Health, Capital Medical University, Beijing 100069, China; Department of Nutrition & Food Hygiene, Capital Medical University, Beijing 100069, China.
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Xuan L, Wang Y, Qu C, Yi W, Yang J, Pan H, Zhang J, Chen C, Bai C, Zhou PK, Huang R. Exposure to polystyrene nanoplastics induces abnormal activation of innate immunity via the cGAS-STING pathway. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 275:116255. [PMID: 38552388 DOI: 10.1016/j.ecoenv.2024.116255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 03/13/2024] [Accepted: 03/21/2024] [Indexed: 04/12/2024]
Abstract
Endogenous immune defenses provide an intrinsic barrier against external entity invasion. Microplastics in the environment, especially those at the nanoscale (nanoplastics or NPs), may pose latent health risks through direct exposure. While links between nanoplastics and inflammatory processes have been established, detailed insights into how they may perturb the innate immune mechanisms remain uncharted. Employing murine and macrophage (RAW264.7) cellular models subjected to polystyrene nanoplastics (PS-NPs), our investigative approach encompassed an array of techniques: Cell Counting Kit-8 assays, flow cytometric analysis, acridine orange/ethidium bromide (AO/EB) fluorescence staining, cell transfection, cell cycle scrutiny, genetic manipulation, messenger RNA expression profiling via quantitative real-time PCR, and protein expression evaluation through western blotting. The results showed that PS-NPs caused RAW264.7 cell apoptosis, leading to cell cycle arrest, and activated the cGAS-STING pathway. This resulted in NF-κB signaling activation and increased pro-inflammatory mediator expression. Importantly, PS-NPs-induced activation of NF-κB and its downstream inflammatory cascade were markedly diminished after the silencing of the STING gene. Our findings highlight the critical role of the cGAS-STING pathway in the immunotoxic effects induced by PS-NPs. We outline a new mechanism whereby nanoplastics may trigger dysregulated innate immune and inflammatory responses via the cGAS/STING pathway.
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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.
| | - Yin Wang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China.
| | - Can Qu
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China
| | - Wensen Yi
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China
| | - Jingjing Yang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China
| | - Huiji Pan
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China.
| | - Jing Zhang
- Clinical Medical Oncology, Xiangya Medical College, Central South University, China.
| | - Cuimei Chen
- School of Public Health, Xiang Nan University, Chenzhou, Hunan 423000, China.
| | - Chenjun Bai
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Ping-Kun Zhou
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, 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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6
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Xuan L, Luo J, Qu C, Guo P, Yi W, Yang J, Yan Y, Guan H, Zhou P, Huang R. Predictive metabolomic signatures for safety assessment of three plastic nanoparticles using intestinal organoids. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 913:169606. [PMID: 38159744 DOI: 10.1016/j.scitotenv.2023.169606] [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: 10/18/2023] [Revised: 12/06/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
Nanoplastic particles are pervasive environmental contaminants with potential health risks, while mouse intestinal organoids provide accurate in vitro models for studying these interactions. Metabolomics, especially through LC-MS, enables detailed cellular response studies, and there's a novel interest in comparing metabolic changes across nanoparticle species using gut organoids. This study used a mouse intestinal organoid combined with cell model to explore the differences in metabolites and toxicity mechanisms induced by exposure to three nanoplastics (PS, PTFE, and PMMA). The results showed that PS, PTFE, and PMMA exposure reduced mitochondrial membrane potential, intracellular ROS accumulation and oxidative stress, and inhibited the AKT/mTOR signaling pathway. Non-targeted metabolomics results confirmed that three types of nanoplastic particles regulate cellular status by regulating fatty acid metabolism, nucleotide metabolism, necroptosis and autophagy pathways. More importantly, these representative metabolites were further validated in model groups after mouse intestinal organoids and HCT116 cells were exposed to the respective NPs, indicating that organoid metabolomics results can be used to effectively predict toxicity. Untargeted metabolomics is sensitive enough to detect subtle metabolomic changes when functional cellular analysis shows no significant differences. Overall, our study reveals the underlying metabolic mechanism of NPs-induced intestinal organoid toxicity and provides new insights into the possible adverse consequences of NPs.
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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.
| | - Jinhua Luo
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China.
| | - Can Qu
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China.
| | - Peiyu Guo
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China.
| | - Wensen Yi
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China
| | - Jingjing Yang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China
| | - Yuhui Yan
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province 410078, China
| | - Hua Guan
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, China.
| | - Pingkun Zhou
- Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, 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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