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Wang X, Lu W, Xia X, Zhu Y, Ge C, Guo X, Zhang N, Chen H, Xu S. Selenomethionine mitigate PM2.5-induced cellular senescence in the lung via attenuating inflammatory response mediated by cGAS/STING/NF-κB pathway. Ecotoxicol Environ Saf 2022; 247:114266. [PMID: 36334339 DOI: 10.1016/j.ecoenv.2022.114266] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 10/29/2022] [Accepted: 10/31/2022] [Indexed: 06/16/2023]
Abstract
Particulate matter 2.5 (PM2.5) is a widely known atmospheric pollutant which can induce the aging-related pulmonary diseases such as acute respiratory distress syndrome (ARDS), chronic obstructive pulmonary disease (COPD) and interstitial pulmonary fibrosis (IPF). In recent years, with the increasing atmospheric pollution, airborne fine PM2.5, which is an integral part of air pollutants, has become a thorny problem. Hence, this study focused on the effect of PM2.5 on cellular senescence in the lung, identifying which inflammatory pathway mediated PM2.5-induced cellular senescence and how to play a protective role against this issue. Our data suggested that PM2.5 induced time- and concentration-dependent increasement in the senescence of A549 cells. Using an inhibitor of cGAS (PF-06928215) and an inhibitor of NF-κB (BAY 11-7082), it was revealed that PM2.5-induced senescence was regulated by inflammatory response, which was closely related to the cGAS/STING/NF-κB pathway activated by DNA damage. Moreover, our study also showed that the pretreatment with selenomethionine (Se-Met) could inhibit inflammatory response and prevent cellular senescence by hindering cGAS/STING/NF-κB pathway in A549 cells exposed to PM2.5. Furthermore, in vivo C57BL/6J mice model demonstrated that aging of mouse lung tissue caused by PM2.5 was attenuated by decreasing cGAS expression after Se-Met treatment. Our findings indicated that selenium made a defense capability for PM2.5-induced cellular senescence in the lung, which provided a novel insight for resisting the harm of PM2.5 to human health.
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Affiliation(s)
- Xiaofei Wang
- School of Biology, Food and Environment, Hefei University, Hefei 230601, PR China
| | - Wenzun Lu
- School of Biology, Food and Environment, Hefei University, Hefei 230601, PR China
| | - Xuanyi Xia
- School of Biology, Food and Environment, Hefei University, Hefei 230601, PR China
| | - Yuchen Zhu
- School of Biology, Food and Environment, Hefei University, Hefei 230601, PR China
| | - Chunmei Ge
- School of Biology, Food and Environment, Hefei University, Hefei 230601, PR China
| | - Xiaoying Guo
- Institute of Agricultural Engineering, Anhui Academy of Agricultural Science, Hefei 230031, PR China
| | - Ning Zhang
- School of Biology, Food and Environment, Hefei University, Hefei 230601, PR China
| | - Hua Chen
- School of Biology, Food and Environment, Hefei University, Hefei 230601, PR China.
| | - Shengmin Xu
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei 230601, PR China.
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Wang Y, Xin Y, Wang XX, Zhang YL, Zhang Y, Wang Y, Peng L, Wu YC. Ambient fine particulate pollution hysteresis triggers wake-up stroke and rapidly triggers non-wake-up stroke: a case-crossover study. Environ Sci Pollut Res Int 2022; 29:82243-82255. [PMID: 35748992 DOI: 10.1007/s11356-022-21458-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Atmospheric pollutants increase the risk of acute ischemic stroke (AIS) which has been widely reported. However, little is known about the relationships between air pollution and specific subsets of AIS, such as wake-up stroke (WUS) and non-wake-up stroke (non-WUS). This study aimed to explore the relationship between WUS and non-WUS and atmospheric pollutants. A total of 1432 patients (331 WUS patients and 1101 non-WUS patients) were admitted to a tertiary hospital from 2016 to 2019. A time-stratified case-crossover design and a conditional logistic regression model to study the associations of change in pollutant concentration with WUS and non-WUS events were constructed. Data analysis revealed that WUS-related risks increased 48 to 72 h after the increase in the PM2.5 concentration (each 10 μg/m3 increase, lag 0-72 h) [threshold OR (95% CI):18 μg/m3 1.03 (0.94-1.11), 35 μg/m3 1.01 (0.92-1.12), 50 μg/m3 1.04 (0.91-1.19)]; the non-WUS-related risk increased 1 to 6 h after the increase in the PM2.5 concentration (each 10 μg/m3 increase, lag 0-1 h) [threshold OR (95% CI):18 μg/m3 1.01 (0.98-1.03), 35 μg/m3 1.00 (0.97-1.04), 50 μg/m3 1.01 (0.96-1.05)] (lag 0-6 h) [threshold OR (95% CI): 18 μg/m3 1.00 (0.97-1.03), 35 μg/m3 1.00 (0.97-1.04), 50 μg/m3 1.01 (0.97-1.06)]; O3 exposure was related to WUS events, and its impact on WUS events was stronger and longer-lasting (1-96 h) than its impact on non-WUS events (1-6 h). Greater than or equal to 65 years of age, overweight (BMI ≥ 25), and diabetes had a significantly greater risk of WUS associated with increased PM2.5 concentration in the previous 12-96 h than patients without these conditions. Patients with hypertension and smoking had a significant risk of non-WUS associated with increased PM2.5 concentration in the previous 1-6 h. The increase in PM2.5 concentration in the cold season increased the risk of both WUS and non-WUS events. Ambient air pollution hysteresis triggers WUS and rapidly triggers non-WUS, even if the degree of pollutant is relatively low. Patients with elderly, overweight, and diabetes appeared particularly susceptible to WUS, and patients with hypertension and smoking history were susceptible to non-WUS. We need to expand the sample for further investigation into mechanisms by which environmental pollutants trigger WUS or non-WUS.
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Affiliation(s)
- Yan Wang
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 86 Wujin Road, Shanghai, 200080, People's Republic of China
| | - Yuan Xin
- Department of Bioinformatics and Biostatistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Xi-Xi Wang
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 86 Wujin Road, Shanghai, 200080, People's Republic of China
| | - Yu-Lei Zhang
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 86 Wujin Road, Shanghai, 200080, People's Republic of China
- The Second Affiliated Hospital of Soochow University, Suzhou, 215004, People's Republic of China
| | - Yue Zhang
- Department of Bioinformatics and Biostatistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Yu Wang
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 86 Wujin Road, Shanghai, 200080, People's Republic of China
| | - Li Peng
- Shanghai Key Laboratory of Meteorology and Health, Shanghai Meteorological Service, Shanghai, 200135, People's Republic of China
| | - Yun-Cheng Wu
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 86 Wujin Road, Shanghai, 200080, People's Republic of China.
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Figliuzzi M, Tironi M, Longaretti L, Mancini A, Teoldi F, Sangalli F, Remuzzi A. Copper-dependent biological effects of particulate matter produced by brake systems on lung alveolar cells. Arch Toxicol 2020; 94:2965-2979. [PMID: 32577786 DOI: 10.1007/s00204-020-02812-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 06/15/2020] [Indexed: 12/22/2022]
Abstract
Road traffic is one of the main sources of particulate emissions into the environment and has an increasing, negative impact on the release of potentially dangerous materials. Vehicle brakes release a significant amount of wear particles, and knowledge regarding their possible adverse effects is limited. One of the most dangerous elements contained in brake pads is copper (Cu), known to be toxic for human health. Therefore, our aim was to study the cell toxicity of particulate matter (PM) produced by different combinations of braking discs and pads containing different amounts of Cu. We investigated whether brake-derived microparticles have toxic effects on lung cells proportionally to their Cu content. Analyte content was measured in friction materials by XRFS and in PM2.5 captured during braking tests using SEM/EDX. The biological impact of brake-derived PM2.5 was investigated on a human epithelial alveolar cell line (A549). Cell viability, oxidative stress, mitochondrial membrane potential, apoptosis, and the pro-inflammatory response of the cells, as well as gene expression, were assessed following exposure to increasing PM2.5 concentrations (1, 10, 100, 200, and 500 µg/ml). The brake debris with the lowest Cu content did not induce significant changes in biological effects on A549 cells compared to normal controls, except for ROS production and IL6 gene expression. PM2.5 containing higher Cu quantities induced cell toxicity that correlated with Cu concentration. Our data suggest that the toxicity of PM2.5 from the brake system is mainly related to Cu content, thus confirming that eliminating Cu from brake pads will be beneficial for human health in urbanized environments.
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Affiliation(s)
- Marina Figliuzzi
- Department of Biomedical Engineering, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Stezzano 87, 24126, Bergamo, Italy.
| | - Matteo Tironi
- Department of Biomedical Engineering, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Stezzano 87, 24126, Bergamo, Italy
| | - Lorena Longaretti
- Department of Molecular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Stezzano 87, Bergamo, Italy
| | - Alessandro Mancini
- Laboratorio Materiali Advanced R&D Brembo S.P.A, Viale Europa, 2, Stezzano, BG, Italy
| | - Federico Teoldi
- Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Negri 2, Milan, Italy
| | - Fabio Sangalli
- Department of Biomedical Engineering, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Stezzano 87, 24126, Bergamo, Italy
| | - Andrea Remuzzi
- Department of Management, Information and Production Engineering, University of Bergamo, Viale Marconi 5, Dalmine, BG, Italy
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Kim SB, Naganawa R, Murata S, Nakayama T, Miller S, Senda T. A Bioluminescence Assay System for Imaging Metal Cationic Activities in Urban Aerosols. Methods Mol Biol 2016; 1461:279-87. [PMID: 27424913 DOI: 10.1007/978-1-4939-3813-1_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
A bioluminescence-based assay system was fabricated for an efficient determination of the activities of air pollutants. The following four components were integrated into this assay system: (1) an 8-channel assay platform uniquely designed for simultaneously sensing multiple optical samples, (2) single-chain probes illuminating toxic chemicals or heavy metal cations from air pollutants, (3) a microfluidic system for circulating medium mimicking the human body, and (4) the software manimulating the above system. In the protocol, we briefly introduce how to integrate the components into the system and the application to the illumination of the metal cationic activities in air pollutants.
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