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Zhang S, Li X, Zhang L, Zhang Z, Li X, Xing Y, Wenger JC, Long X, Bao Z, Qi X, Han Y, Prévôt ASH, Cao J, Chen Y. Disease types and pathogenic mechanisms induced by PM 2.5 in five human systems: An analysis using omics and human disease databases. ENVIRONMENT INTERNATIONAL 2024; 190:108863. [PMID: 38959566 DOI: 10.1016/j.envint.2024.108863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/21/2024] [Accepted: 06/28/2024] [Indexed: 07/05/2024]
Abstract
Atmospheric fine particulate matter (PM2.5) can harm various systems in the human body. Due to limitations in the current understanding of epidemiology and toxicology, the disease types and pathogenic mechanisms induced by PM2.5 in various human systems remain unclear. In this study, the disease types induced by PM2.5 in the respiratory, circulatory, endocrine, and female and male urogenital systems have been investigated and the pathogenic mechanisms identified at molecular level. The results reveal that PM2.5 is highly likely to induce pulmonary emphysema, reperfusion injury, malignant thyroid neoplasm, ovarian endometriosis, and nephritis in each of the above systems respectively. The most important co-existing gene, cellular component, biological process, molecular function, and pathway in the five systems targeted by PM2.5 are Fos proto-oncogene (FOS), extracellular matrix, urogenital system development, extracellular matrix structural constituent conferring tensile strength, and ferroptosis respectively. Differentially expressed genes that are significantly and uniquely targeted by PM2.5 in each system are BTG2 (respiratory), BIRC5 (circulatory), NFE2L2 (endocrine), TBK1 (female urogenital) and STAT1 (male urogenital). Important disease-related cellular components, biological processes, and molecular functions are specifically induced by PM2.5. For example, response to wounding, blood vessel morphogenesis, body morphogenesis, negative regulation of response to endoplasmic reticulum stress, and response to type I interferon are the top uniquely existing biological processes in each system respectively. PM2.5 mainly acts on key disease-related pathways such as the PD-L1 expression and PD-1 checkpoint pathway in cancer (respiratory), cell cycle (circulatory), apoptosis (endocrine), antigen processing and presentation (female urogenital), and neuroactive ligand-receptor interaction (male urogenital). This study provides a novel analysis strategy for elucidating PM2.5-related disease types and is an important supplement to epidemiological investigation. It clarifies the risks of PM2.5 exposure, elucidates the pathogenic mechanisms, and provides scientific support for promoting the precise prevention and treatment of PM2.5-related diseases.
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Affiliation(s)
- Shumin Zhang
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Xiaomeng Li
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Department of Laboratory Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Liru Zhang
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Zhengliang Zhang
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; School of Public Health, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Xuan Li
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; School of Public Health, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Yan Xing
- Department of Laboratory Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - John C Wenger
- School of Chemistry and Environmental Research Institute, University College Cork, Cork, Ireland
| | - Xin Long
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Zhier Bao
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Xin Qi
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Yan Han
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - André S H Prévôt
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institut, Villigen, PSI 5232, Switzerland
| | - Junji Cao
- Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
| | - Yang Chen
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
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Hu Y, Huang Y, Zong L, Lin J, Liu X, Ning S. Emerging roles of ferroptosis in pulmonary fibrosis: current perspectives, opportunities and challenges. Cell Death Discov 2024; 10:301. [PMID: 38914560 PMCID: PMC11196712 DOI: 10.1038/s41420-024-02078-0] [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: 03/15/2024] [Revised: 06/13/2024] [Accepted: 06/18/2024] [Indexed: 06/26/2024] Open
Abstract
Pulmonary fibrosis (PF) is a chronic interstitial lung disorder characterized by abnormal myofibroblast activation, accumulation of extracellular matrix (ECM), and thickening of fibrotic alveolar walls, resulting in deteriorated lung function. PF is initiated by dysregulated wound healing processes triggered by factors such as excessive inflammation, oxidative stress, and coronavirus disease (COVID-19). Despite advancements in understanding the disease's pathogenesis, effective preventive and therapeutic interventions are currently lacking. Ferroptosis, an iron-dependent regulated cell death (RCD) mechanism involving lipid peroxidation and glutathione (GSH) depletion, exhibits unique features distinct from other RCD forms (e.g., apoptosis, necrosis, and pyroptosis). Imbalance between reactive oxygen species (ROS) production and detoxification leads to ferroptosis, causing cellular dysfunction through lipid peroxidation, protein modifications, and DNA damage. Emerging evidence points to the crucial role of ferroptosis in PF progression, driving macrophage polarization, fibroblast proliferation, and ECM deposition, ultimately contributing to alveolar cell death and lung tissue scarring. This review provides a comprehensive overview of the latest findings on the involvement and signaling mechanisms of ferroptosis in PF pathogenesis, emphasizing potential novel anti-fibrotic therapeutic approaches targeting ferroptosis for PF management.
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Affiliation(s)
- Yixiang Hu
- Department of Clinical Pharmacy, The Affiliated Xiangtan Center Hospital of Hunan University, Xiangtan, 411100, China
| | - Ying Huang
- Zhongshan Hospital of Traditional Chinese Medicine Afflilated to Guangzhou University of Chinese Medicine, Zhongshan, 528400, China
| | - Lijuan Zong
- Department of Rehabilitation Medicine, Zhongda Hospital of Southeast University, Nanjing, 210096, China
| | - Jiaxin Lin
- Department of Breast Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, 530000, China
| | - Xiang Liu
- Department of Clinical Pharmacy, The Affiliated Xiangtan Center Hospital of Hunan University, Xiangtan, 411100, China.
| | - Shipeng Ning
- Department of Breast Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, 530000, China.
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Bhetraratana M, Orozco LD, Bennett BJ, Luna K, Yang X, Lusis AJ, Araujo JA. Diesel exhaust particle extract elicits an oxPAPC-like transcriptomic profile in macrophages across multiple mouse strains. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024:124415. [PMID: 38908672 DOI: 10.1016/j.envpol.2024.124415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 06/14/2024] [Accepted: 06/19/2024] [Indexed: 06/24/2024]
Abstract
Air pollution is a prominent cause of cardiopulmonary illness, but uncertainties remain regarding the mechanisms mediating those effects as well as individual susceptibility. Macrophages are highly responsive to particles, and we hypothesized that their responses would be dependent on their genetic backgrounds. We conducted a genome-wide analysis of peritoneal macrophages harvested from 24 inbred strains of mice from the Hybrid Mouse Diversity Panel (HMDP). Cells were treated with a DEP methanol extract (DEPe) to elucidate potential mechanisms that mediate acute responses to air pollution exposures. This analysis showed that 1,247 genes were upregulated and 1,383 genes were downregulated with DEPe treatment across strains. Pathway analysis identified oxidative stress responses among the most prominent upregulated pathways; indeed, many of the upregulated genes included antioxidants such as Hmox1, Txnrd1, Srxn1, and Gclm, with NRF2 (official gene symbol: Nfe2l2) being the most significant driver. DEPe induced a Mox-like transcriptomic profile, a macrophage subtype typically induced by oxidized phospholipids and likely dependent on NRF2 expression. Analysis of individual strains revealed consistency of overall responses to DEPe and yet differences in the degree of Mox-like polarization across the various strains, indicating DEPe x genetic interactions. These results suggest a role for macrophage polarization in the cardiopulmonary toxicity induced by air pollution.
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Affiliation(s)
- May Bhetraratana
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave., Los Angeles, California 90095, USA
| | - Luz D Orozco
- Department of Human Genetics, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave., Los Angeles, California 90095, USA
| | - Brian J Bennett
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave., Los Angeles, California 90095, USA
| | - Karla Luna
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave., Los Angeles, California 90095, USA; Department of Biology, College of Science and Math, California State University-Northridge, 18111 Nordhoff Street, Northridge, California 91330, USA
| | - Xia Yang
- Department of Integrative Biology and Physiology, UCLA, 612 Charles E. Young Drive East, Los Angeles, California 90095, USA; Institute for Quantitative and Computational Biosciences, UCLA, 610 Charles E. Young Drive East, Los Angeles, California 90095, USA; Molecular Biology Institute, UCLA, 611 Charles E. Young Drive East, Los Angeles, California 90095, USA
| | - Aldons J Lusis
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave., Los Angeles, California 90095, USA; Department of Human Genetics, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave., Los Angeles, California 90095, USA; Molecular Biology Institute, UCLA, 611 Charles E. Young Drive East, Los Angeles, California 90095, USA
| | - Jesus A Araujo
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave., Los Angeles, California 90095, USA; Molecular Biology Institute, UCLA, 611 Charles E. Young Drive East, Los Angeles, California 90095, USA; Department of Environmental Health Sciences, Fielding School of Public Health, UCLA, 650 Charles E. Young Dr. South, Los Angeles, California 90095, USA.
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Guo Y, Zhao J, Ma X, Cai M, Chi Y, Sun C, Liu S, Song X, Xu K. Phytochemical reduces toxicity of PM2.5: a review of research progress. Nutr Rev 2024; 82:654-663. [PMID: 37587082 DOI: 10.1093/nutrit/nuad077] [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] [Indexed: 08/18/2023] Open
Abstract
Studies have shown that exposure to fine particulate matter (PM2.5) affects various cells, systems, and organs in vivo and in vitro. PM2.5 adversely affects human health through mechanisms such as oxidative stress, inflammatory response, autophagy, ferroptosis, and endoplasmic reticulum stress. Phytochemicals are of interest for their broad range of physiological activities and few side effects, and, in recent years, they have been widely used to mitigate the adverse effects caused by PM2.5 exposure. In this review, the roles of various phytochemicals are summarized, including those of polyphenols, carotenoids, organic sulfur compounds, and saponin compounds, in mitigating PM2.5-induced adverse reactions through different molecular mechanisms, including anti-inflammatory and antioxidant mechanisms, inhibition of endoplasmic reticulum stress and ferroptosis, and regulation of autophagy. These are useful as a scientific basis for the prevention and treatment of disease caused by PM2.5.
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Affiliation(s)
- Yulan Guo
- School of Public Health, Jilin University, Changchun, China
| | - Jinbin Zhao
- School of Public Health, Jilin University, Changchun, China
| | - Xueer Ma
- School of Public Health, Jilin University, Changchun, China
| | - Ming Cai
- School of Public Health, Jilin University, Changchun, China
| | - Yuyang Chi
- School of Public Health, Jilin University, Changchun, China
| | - Chunmeng Sun
- School of Public Health, Jilin University, Changchun, China
| | - Shitong Liu
- School of Public Health, Jilin University, Changchun, China
| | - Xiuling Song
- School of Public Health, Jilin University, Changchun, China
| | - Kun Xu
- School of Medicine, Hunan Normal University, Changsha, China
- The Research Center of Reproduction and Translational Medicine of Hunan Province, Changsha, China
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Luo L, Jiang M, Xiong Y, Xiong A, Zhang L, Wu D, Liu Y, Ran Q, Liu J, Zhang Y, Li J, He X, Wang J, Li G. Fine particulate matter 2.5 induces susceptibility to Pseudomonas aeruginosa infection via expansion of PD-L1 high neutrophils in mice. Respir Res 2024; 25:90. [PMID: 38355515 PMCID: PMC10865610 DOI: 10.1186/s12931-023-02640-x] [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: 07/10/2023] [Accepted: 12/15/2023] [Indexed: 02/16/2024] Open
Abstract
BACKGROUND Exposure to PM2.5 has been implicated in a range of detrimental health effects, particularly affecting the respiratory system. However, the precise underlying mechanisms remain elusive. METHODS To address this objective, we collected ambient PM2.5 and administered intranasal challenges to mice, followed by single-cell RNA sequencing (scRNA-seq) to unravel the heterogeneity of neutrophils and unveil their gene expression profiles. Flow cytometry and immunofluorescence staining were subsequently conducted to validate the obtained results. Furthermore, we assessed the phagocytic potential of neutrophils upon PM2.5 exposure using gene analysis of phagocytosis signatures and bacterial uptake assays. Additionally, we utilized a mouse pneumonia model to evaluate the susceptibility of PM2.5-exposed mice to Pseudomonas aeruginosa infection. RESULTS Our study revealed a significant increase in neutrophil recruitment within the lungs of PM2.5-exposed mice, with subclustering of neutrophils uncovering subsets with distinct gene expression profiles. Notably, exposure to PM2.5 was associated with an expansion of PD-L1high neutrophils, which exhibited impaired phagocytic function dependent upon PD-L1 expression. Furthermore, PM2.5 exposure was found to increase the susceptibility of mice to Pseudomonas aeruginosa, due in part to increased PD-L1 expression on neutrophils. Importantly, monoclonal antibody targeting of PD-L1 significantly reduced bacterial burden, dissemination, and lung inflammation in PM2.5-exposed mice upon Pseudomonas aeruginosa infection. CONCLUSIONS Our study suggests that PM2.5 exposure promotes expansion of PD-L1high neutrophils with impaired phagocytic function in mouse lungs, contributing to increased vulnerability to bacterial infection, and therefore targeting PD-L1 may be a therapeutic strategy for reducing the harmful effects of PM2.5 exposure on the immune system.
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Affiliation(s)
- Li Luo
- Laboratory of Allergy and Precision Medicine, Department of Pulmonary and Critical Care Medicine, Chengdu Institute of Respiratory Health, The Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
| | - Manling Jiang
- Laboratory of Allergy and Precision Medicine, Department of Pulmonary and Critical Care Medicine, Chengdu Institute of Respiratory Health, The Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science & Technology, Macao Special Administrative Region, Taipa, China
| | - Ying Xiong
- Department of Pulmonary and Critical Care Medicine, Sichuan Friendship Hospital, Chengdu, China
| | - Anying Xiong
- Laboratory of Allergy and Precision Medicine, Department of Pulmonary and Critical Care Medicine, Chengdu Institute of Respiratory Health, The Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
| | - Lei Zhang
- Laboratory of Allergy and Precision Medicine, Department of Pulmonary and Critical Care Medicine, Chengdu Institute of Respiratory Health, The Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science & Technology, Macao Special Administrative Region, Taipa, China
| | - Dehong Wu
- Laboratory of Allergy and Precision Medicine, Department of Pulmonary and Critical Care Medicine, Chengdu Institute of Respiratory Health, The Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
| | - Yao Liu
- Laboratory of Allergy and Precision Medicine, Department of Pulmonary and Critical Care Medicine, Chengdu Institute of Respiratory Health, The Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science & Technology, Macao Special Administrative Region, Taipa, China
| | - Qin Ran
- Laboratory of Allergy and Precision Medicine, Department of Pulmonary and Critical Care Medicine, Chengdu Institute of Respiratory Health, The Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
| | - Jiliu Liu
- Laboratory of Allergy and Precision Medicine, Department of Pulmonary and Critical Care Medicine, Chengdu Institute of Respiratory Health, The Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
| | - Yi Zhang
- Laboratory of Allergy and Precision Medicine, Department of Pulmonary and Critical Care Medicine, Chengdu Institute of Respiratory Health, The Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
| | - Jiahuan Li
- Laboratory of Allergy and Precision Medicine, Department of Pulmonary and Critical Care Medicine, Chengdu Institute of Respiratory Health, The Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China
- North Sichuan Medical College, Nanchong, China
| | - Xiang He
- Laboratory of Allergy and Precision Medicine, Department of Pulmonary and Critical Care Medicine, Chengdu Institute of Respiratory Health, The Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China.
| | - Junyi Wang
- Laboratory of Allergy and Precision Medicine, Department of Pulmonary and Critical Care Medicine, Chengdu Institute of Respiratory Health, The Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China.
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science & Technology, Macao Special Administrative Region, Taipa, China.
| | - Guoping Li
- Laboratory of Allergy and Precision Medicine, Department of Pulmonary and Critical Care Medicine, Chengdu Institute of Respiratory Health, The Third People's Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, 610031, China.
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Zhu L, Zhang Q, Hua C, Ci X. Melatonin alleviates particulate matter-induced liver fibrosis by inhibiting ROS-mediated mitophagy and inflammation via Nrf2 activation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 268:115717. [PMID: 37992643 DOI: 10.1016/j.ecoenv.2023.115717] [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: 07/31/2023] [Revised: 11/14/2023] [Accepted: 11/18/2023] [Indexed: 11/24/2023]
Abstract
OBJECTIVE Fine particulate matter (PM2.5) is a source of pollution worldwide, that causes inflammation and liver fibrosis. Melatonin, as the predominant hormone secreted by the pineal gland, can inhibit PM2.5-induced lung injury by activating nuclear factor erythroid 2-related factor 2 (Nrf2) to inhibit ferroptosis. However, the possible role of melatonin in PM2.5-induced liver damage remains unclear. EXPERIMENTAL APPROACH In vitro, the effects of melatonin on PM2.5-induced oxidative stress and LX-2 cell activation were examined. In vivo, a PM2.5-induced inflammation and liver fibrosis mouse model was used to evaluate the hepatoprotective effect of melatonin. RESULTS In vitro, melatonin induced the expression of Nrf2 and its downstream genes and inhibited PM2.5-induced reactive oxygen species (ROS) production and mitochondrial damage. Melatonin also ameliorated the PM2.5-induced oxidative stress and fibrogenic marker upregulation. However, the antifibrotic effect of melatonin was abolished in siNrf2-treated LX-2 cells. In vivo, we observed mitochondrial abnormalities and mitochondrial fragmentation, which were accompanied by increased PTEN-induced kinase 1 (PINK1) and Parkin expression, in PM2.5-treated mouse hepatocytes. These changes were partially reversed by melatonin. In addition, melatonin activated the Nrf2 signaling pathway and protected against PM2.5-induced oxidative stress. Furthermore, melatonin alleviated inflammation and liver fibrosis. Moreover, Nrf2-KO mice exhibited more severe inflammation and liver fibrosis after PM2.5 exposure than wild-type mice, and the protective effect of melatonin on PM2.5- treated Nrf2-KO mice was greatly compromised. CONCLUSION These data suggest that melatonin effectively inhibits PM2.5-induced liver fibrosis by activating Nrf2 and inhibiting ROS-mediated mitophagy and inflammation.
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Affiliation(s)
- Laiyu Zhu
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130001, China
| | - Qi Zhang
- Department of Intensive Care Unit, The First Hospital of Jilin University, Changchun, Jilin 130001, China
| | - Cong Hua
- Department of Surgical Neuro-oncology, The First Hospital of Jilin University, Changchun, Jilin 130001, China
| | - Xinxin Ci
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, Jilin 130001, China.
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Li Y, Lin B, Hao D, Du Z, Wang Q, Song Z, Li X, Li K, Wang J, Zhang Q, Wu J, Xi Z, Chen H. Short-term PM 2.5 exposure induces transient lung injury and repair. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132227. [PMID: 37586238 DOI: 10.1016/j.jhazmat.2023.132227] [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: 02/27/2023] [Revised: 07/01/2023] [Accepted: 08/03/2023] [Indexed: 08/18/2023]
Abstract
Exposure to fine atmospheric particulate matter (PM) is known to induce lung inflammation and injury; however, the way in which sophisticated endogenous lung repair and regenerative programs respond to this exposure remains unknown. In this study, we established a whole-body mouse exposure model to mimic real scenarios. Exposure to fine PM (PM with an aerodynamic diameter ≤ 2.5 µm [PM2.5]; mean 1.05 mg/m3) for 1-month elicited inflammatory infiltration and epithelial alterations in the lung, which were resolved 6 months after cessation of exposure. Immune cells that responded to PM2.5 exposure mainly included macrophages and neutrophils. During PM2.5 exposure, alveolar epithelial type 2 cells initiated rapid repair of alveolar epithelial mucosa through proliferation. However, the reparative capacity of airway progenitor cells (club cells) was impaired, which may have been related to the oxidative production of neutrophils or macrophages, as suggested in organoid co-cultures. These data suggested that the pulmonary toxic effects of short-term exposure to fine atmospheric PM at a certain dosage could be overcome through tissue reparative mechanisms.
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Affiliation(s)
- Yu Li
- Department of Basic Medicine, Haihe Hospital, Tianjin University, Tianjin, China; Tianjin Key Laboratory of Lung Regenerative Medicine, Tianjin, China
| | - Bencheng Lin
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - De Hao
- Department of Basic Medicine, Haihe Hospital, Tianjin University, Tianjin, China
| | - Zhongchao Du
- Department of Basic Medicine, Haihe Clinical School, Tianjin Medical University, Tianjin, China
| | - Qi Wang
- Department of Basic Medicine, Haihe Hospital, Tianjin University, Tianjin, China
| | - Zhaoyu Song
- Department of Basic Medicine, Haihe Clinical School, Tianjin Medical University, Tianjin, China
| | - Xue Li
- Department of Basic Medicine, Haihe Hospital, Tianjin University, Tianjin, China; Tianjin Key Laboratory of Lung Regenerative Medicine, Tianjin, China
| | - Kuan Li
- Department of Basic Medicine, Haihe Hospital, Tianjin University, Tianjin, China; Tianjin Key Laboratory of Lung Regenerative Medicine, Tianjin, China
| | - Jianhai Wang
- Department of Basic Medicine, Haihe Hospital, Tianjin University, Tianjin, China; Tianjin Key Laboratory of Lung Regenerative Medicine, Tianjin, China
| | - Qiuyang Zhang
- Department of Basic Medicine, Haihe Hospital, Tianjin University, Tianjin, China; Tianjin Key Laboratory of Lung Regenerative Medicine, Tianjin, China
| | - Junping Wu
- Tianjin Institute of Respiratory Diseases, Tianjin, China; Department of Tuberculosis, Haihe Hospital, Tianjin University, Tianjin, China
| | - Zhuge Xi
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China.
| | - Huaiyong Chen
- Department of Basic Medicine, Haihe Hospital, Tianjin University, Tianjin, China; Tianjin Key Laboratory of Lung Regenerative Medicine, Tianjin, China; College of Pulmonary and Critical Care Medicine, 8th Medical Center, Chinese PLA General Hospital, Beijing, China.
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8
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Dong T, Fan X, Zheng N, Yan K, Hou T, Peng L, Ci X. Activation of Nrf2 signalling pathway by tectoridin protects against ferroptosis in particulate matter-induced lung injury. Br J Pharmacol 2023; 180:2532-2549. [PMID: 37005797 DOI: 10.1111/bph.16085] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 03/01/2023] [Accepted: 03/21/2023] [Indexed: 04/04/2023] Open
Abstract
BACKGROUND AND PURPOSE Our previous research showed that ferroptosis plays a crucial role in the pathophysiology of PM2.5-induced lung injury. The present study aimed to investigate the protective role of the Nrf2 signalling pathway and its bioactive molecule tectoridin in PM2.5-induced lung injury by regulating ferroptosis. EXPERIMENTAL APPROACH We examined the regulatory effect of Nrf2 on ferroptosis in PM2.5-induced lung injury and Beas-2b cells using Nrf2-knockout (KO) mice and Nrf2 siRNA transfection. The effects and underlying mechanisms of tectoridin on PM2.5-induced lung injury were evaluated in vitro and in vivo. KEY RESULTS Nrf2 deletion increased iron accumulation and ferroptosis-related protein expression in vivo and vitro, further exacerbating lung injury and cell death in response to PM2.5 exposure. Tectoridin activated Nrf2 target genes and ameliorated cell death caused by PM2.5. In addition, tectoridin prevented lipid peroxidation, iron accumulation and ferroptosis in vitro, but in siNrf2-treated cells, these effects almost disappeared. In addition, tectoridin effectively mitigated PM2.5-induced respiratory system damage, as evaluated by HE, PAS, and inflammatory factors. Tectoridin also augmented the antioxidative Nrf2 signalling pathway and prevented changes in ferroptosis-related morphological and biochemical indicators, including MDA levels, GSH depletion and GPX4 and xCT downregulation, in PM2.5-induced lung injury. However, the effects of tectoridin on ferroptosis and respiratory injury were almost abolished in Nrf2-KO mice. CONCLUSION AND IMPLICATIONS Our data proposed the protective effect of Nrf2 activation on PM2.5-induced lung injury by inhibiting ferroptosis-mediated lipid peroxidation and highlight the potential of tectoridin as a PM2.5-induced lung injury treatment.
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Affiliation(s)
- Tingting Dong
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, China
| | - Xiaoye Fan
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, China
| | - Nan Zheng
- Department of Pharmacy, the Second Hospital of Jilin University, Changchun, China
| | - Kun Yan
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, China
| | - Tianhua Hou
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, China
| | - Liping Peng
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, China
| | - Xinxin Ci
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, China
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
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Ma H, Zhang Q, Liang W, Han A, Xie N, Xiang H, Wang X. Short-Term Exposure to PM 2.5 and O 3 Impairs Liver Function in HIV/AIDS Patients: Evidence from a Repeated Measurements Study. TOXICS 2023; 11:729. [PMID: 37755740 PMCID: PMC10537338 DOI: 10.3390/toxics11090729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/11/2023] [Accepted: 08/23/2023] [Indexed: 09/28/2023]
Abstract
Studies investigating the relationship between ambient air pollutants and liver function are scarce. Our objective was to examine the associations of acute exposure to PM2.5 and O3 with levels of hepatic enzymes in people living with HIV/AIDS (PWHA). Our study involved 163 PWHA, who were evaluated for serum hepatic enzymes up to four times within a year. We extracted daily average concentrations of PM2.5, PM2.5 components, and O3 for each participant, based on their residential address, using the Tracking of Air Pollution in China database. Linear mixed-effect models were utilized to assess the associations of acute exposure to PM2.5 and O3 with hepatic enzymes. Weighted quantile sum regression models were employed to identify the major constituents of PM2.5 that affect hepatic enzymes. The percent change of aspartate aminotransferase (AST) concentration was positively correlated with a 10 µg/m3 increase in PM2.5, ranging from 1.92 (95% CI: 3.13 to 4.38) to 6.09 (95% CI: 9.25 to 12.38), with the largest effect observed at lag06. Additionally, acute O3 exposure was related to increased levels of alanine aminotransferase (ALT), AST, and alkaline phosphatase (ALP) concentrations. Co-exposure to high levels of PM2.5 and O3 had an antagonistic effect on the elevation of AST. Further analysis revealed that SO42- and BC were major contributors to elevated AST concentration due to PM2.5 constituents. A stronger association was found between O3 exposure and ALT concentration in female PWHA. Our study found that short-term exposure to PM2.5 and O3 was associated with increased levels of hepatic enzymes, indicating that PM2.5 and O3 exposure may contribute to hepatocellular injury in PWHA. Our study also found that PWHA may be more vulnerable to air pollution than the general population. These findings highlight the relationship between air pollutants and liver function in PWHA, providing a scientific basis for the implementation of measures to protect susceptible populations from the adverse effects of air pollution. A reduction in the burning of fossil fuels and reduced exposure to air pollutants may be effective hazard reduction approaches.
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Affiliation(s)
- Hongfei Ma
- Wuhan Center for Disease Control and Prevention, 288# Machang Road, Wuhan 430024, China
| | - Qian Zhang
- Qingshan District Center for Disease Control and Prevention, 4# Yangang Road, Wuhan 430070, China
| | - Wei Liang
- Department of Global Health, School of Public Health, Wuhan University, 115# Donghu Road, Wuhan 430071, China
| | - Aojing Han
- Department of Global Health, School of Public Health, Wuhan University, 115# Donghu Road, Wuhan 430071, China
| | - Nianhua Xie
- Wuhan Center for Disease Control and Prevention, 288# Machang Road, Wuhan 430024, China
| | - Hao Xiang
- Department of Global Health, School of Public Health, Wuhan University, 115# Donghu Road, Wuhan 430071, China
| | - Xia Wang
- Wuhan Center for Disease Control and Prevention, 288# Machang Road, Wuhan 430024, China
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10
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Li N, Xiong R, Li G, Wang B, Geng Q. PM2.5 contributed to pulmonary epithelial senescence and ferroptosis by regulating USP3-SIRT3-P53 axis. Free Radic Biol Med 2023; 205:291-304. [PMID: 37348684 DOI: 10.1016/j.freeradbiomed.2023.06.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/12/2023] [Accepted: 06/19/2023] [Indexed: 06/24/2023]
Abstract
Pulmonary epithelial cells act as the first line of defense against various air pollutant particles. Previous studies have reported that particulate matter 2.5 (PM2.5) could trigger pulmonary inflammation and fibrosis by inducing pulmonary epithelial senescence and ferroptosis. Sirtuin 3 (SIRT3) is one of critical the mitochondrial NAD+-dependent deacetylases, exerting antioxidant and anti-aging effects in multiple diseases. The present study aimed to explore the role of SIRT3 in PM2.5-induced lung injury as well as possible mechanisms. The role of SIRT3 in PM2.5-induced lung injury was investigated by SIRT3 genetic depletion, adenovirus-mediated overexpression in type II alveolar epithelial (AT2) cells, and pharmacological activation by melatonin. The protein level and activity of SIRT3 in lung tissues and AT2 cells were significantly downregulated after PM2.5 stimulation. SIRT3 deficiency in AT2 cells aggravated inflammatory response and collagen deposition in PM2.5-treated lung tissues. RNA-sequence and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that the differentially expressed genes (DEGs) between SIRT3 flox and SIRT3 CKO mice were mainly enriched in ferroptosis and cellular longevity. Western blot further showed that SIRT3 deficiency in AT2 cells significantly upregulated the proteins associated with ferroptosis and cell senescence in PM2.5-treated lung tissues. In vitro experiments also showed that SIRT3 overexpression could decrease the levels of ferroptosis and cell senescence in PM2.5-treated AT2 cells. In addition, we found that PM2.5 could increase the acetylation of P53 via triggering DNA damage in AT2 cells. And SIRT3 could deacetylate P53 at lysines 320 (K320), thus reducing its transcriptional activity. PM2.5 decreased the protein level of SIRT3 by inducing proteasome pathway through downregulating USP3. Finally, we found that SIRT3 agonist, melatonin treatment could alleviate PM2.5-induced senescence and ferroptosis in mice. In conclusion, targeting USP3-SIRT3-P53 axis may be a novel therapeutic strategy against PM2.5-induced pulmonary inflammation and fibrosis by decreasing pulmonary epithelial senescence and ferroptosis.
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Affiliation(s)
- Ning Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Rui Xiong
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Guorui Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Bo Wang
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Qing Geng
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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11
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Song HJ, Shin DU, Eom JE, Lim KM, Lim EY, Kim YI, Kim HJ, Song JH, Shim M, Choe H, Kim GD, Lee SY, Shin HS. Artemisia gmelinii Extract Attenuates Particulate Matter-Induced Neutrophilic Inflammation in a Mouse Model of Lung Injury. Antioxidants (Basel) 2023; 12:1591. [PMID: 37627586 PMCID: PMC10451698 DOI: 10.3390/antiox12081591] [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: 05/24/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Particulate matter (PM) induces and augments oxidative stress and inflammation, leading to respiratory diseases. Although Artemisia gmelinii Weber ex Stechm has antioxidant and anti-inflammatory effects, there are no reports on whether Artemisia gmelinii extract (AGE) regulates lung inflammation in a PM-induced model. Thus, we investigated the protective effects of AGE using a PM-induced mouse lung inflammation model. AGE significantly decreased the expression of inflammatory chemokines, neutrophil extracellular trap formation, and the total number of inflammatory cells in the bronchoalveolar lavage fluid (BALF). Furthermore, AGE attenuated lung inflammation through the suppression of the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB)/mitogen-activated protein kinase (MAPK) signaling pathway, while promoting the nuclear factor erythroid-2-related factor 2 (NRF2)/heme oxygenase-1 (HO-1) signaling pathway in lung tissues. Concordant with these observations, AGE suppressed inflammatory cytokines, chemokines, reactive oxygen species, NETosis, myeloperoxidase, and neutrophil elastase by decreasing the mRNA expression of High mobility group box 1, Runt-related transcription factor 1, and Kruppel-like factor 6 in differentiated HL-60 cells. In summary, our data demonstrated that AGE suppresses PM-induced neutrophil infiltration, lung damage, and pulmonary inflammation by suppressing NF-κB/MAPK signaling pathways and enhancing the NRF2/HO-1 signaling pathway. These findings suggest that AGE administration is an effective approach for preventing and treating PM-induced respiratory inflammation.
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Affiliation(s)
- Hyeon-Ji Song
- Division of Food Functionality Research, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea; (H.-J.S.); (D.-U.S.); (J.-E.E.); (K.M.L.); (E.Y.L.); (Y.I.K.); (H.-J.K.); (J.H.S.); (G.-D.K.)
- Department of Food Science and Technology, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Dong-Uk Shin
- Division of Food Functionality Research, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea; (H.-J.S.); (D.-U.S.); (J.-E.E.); (K.M.L.); (E.Y.L.); (Y.I.K.); (H.-J.K.); (J.H.S.); (G.-D.K.)
- Department of Food Biotechnology, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Ji-Eun Eom
- Division of Food Functionality Research, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea; (H.-J.S.); (D.-U.S.); (J.-E.E.); (K.M.L.); (E.Y.L.); (Y.I.K.); (H.-J.K.); (J.H.S.); (G.-D.K.)
| | - Kyung Min Lim
- Division of Food Functionality Research, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea; (H.-J.S.); (D.-U.S.); (J.-E.E.); (K.M.L.); (E.Y.L.); (Y.I.K.); (H.-J.K.); (J.H.S.); (G.-D.K.)
- Department of Food Biotechnology, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Eun Yeong Lim
- Division of Food Functionality Research, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea; (H.-J.S.); (D.-U.S.); (J.-E.E.); (K.M.L.); (E.Y.L.); (Y.I.K.); (H.-J.K.); (J.H.S.); (G.-D.K.)
| | - Young In Kim
- Division of Food Functionality Research, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea; (H.-J.S.); (D.-U.S.); (J.-E.E.); (K.M.L.); (E.Y.L.); (Y.I.K.); (H.-J.K.); (J.H.S.); (G.-D.K.)
| | - Ha-Jung Kim
- Division of Food Functionality Research, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea; (H.-J.S.); (D.-U.S.); (J.-E.E.); (K.M.L.); (E.Y.L.); (Y.I.K.); (H.-J.K.); (J.H.S.); (G.-D.K.)
- Department of Food Science and Technology, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Ju Hye Song
- Division of Food Functionality Research, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea; (H.-J.S.); (D.-U.S.); (J.-E.E.); (K.M.L.); (E.Y.L.); (Y.I.K.); (H.-J.K.); (J.H.S.); (G.-D.K.)
- Department of Food Biotechnology, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - MyeongKuk Shim
- BL Healthcare Corp., Yongin 16827, Republic of Korea; (M.S.); (H.C.)
| | - HyeonJeong Choe
- BL Healthcare Corp., Yongin 16827, Republic of Korea; (M.S.); (H.C.)
| | - Gun-Dong Kim
- Division of Food Functionality Research, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea; (H.-J.S.); (D.-U.S.); (J.-E.E.); (K.M.L.); (E.Y.L.); (Y.I.K.); (H.-J.K.); (J.H.S.); (G.-D.K.)
| | - So-Young Lee
- Division of Food Functionality Research, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea; (H.-J.S.); (D.-U.S.); (J.-E.E.); (K.M.L.); (E.Y.L.); (Y.I.K.); (H.-J.K.); (J.H.S.); (G.-D.K.)
- Department of Food Biotechnology, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Hee Soon Shin
- Division of Food Functionality Research, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea; (H.-J.S.); (D.-U.S.); (J.-E.E.); (K.M.L.); (E.Y.L.); (Y.I.K.); (H.-J.K.); (J.H.S.); (G.-D.K.)
- Department of Food Biotechnology, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea
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12
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Nan N, Yan Z, Zhang Y, Chen R, Qin G, Sang N. Overview of PM 2.5 and health outcomes: Focusing on components, sources, and pollutant mixture co-exposure. CHEMOSPHERE 2023; 323:138181. [PMID: 36806809 DOI: 10.1016/j.chemosphere.2023.138181] [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: 12/06/2022] [Revised: 02/10/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
PM2.5 varies in source and composition over time and space as a complicated mixture. Consequently, the health effects caused by PM2.5 varies significantly over time and generally exhibit significant regional variations. According to numerous studies, a notable relationship exists between PM2.5 and the occurrence of many diseases, such as respiratory, cardiovascular, and nervous system diseases, as well as cancer. Therefore, a comprehensive understanding of the effect of PM2.5 on human health is critical. The toxic effects of various PM2.5 components, as well as the overall toxicity of PM2.5 are discussed in this review to provide a foundation for precise PM2.5 emission control. Furthermore, this review summarizes the synergistic effect of PM2.5 and other pollutants, which can be used to draft effective policies.
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Affiliation(s)
- Nan Nan
- College of Environment and Resource, Shanxi University, Taiyuan, Shanxi, 030006, PR China
| | - Zhipeng Yan
- College of Environment and Resource, Shanxi University, Taiyuan, Shanxi, 030006, PR China
| | - Yaru Zhang
- College of Environment and Resource, Shanxi University, Taiyuan, Shanxi, 030006, PR China
| | - Rui Chen
- Beijing Key Laboratory of Occupational Safety and Health, Institute of Urban Safety and Environmental Science, Beijing Academy of Science and Technology, Beijing, 100054, PR China; Beijing City University, Beijing, 11418, PR China.
| | - Guohua Qin
- College of Environment and Resource, Shanxi University, Taiyuan, Shanxi, 030006, PR China.
| | - Nan Sang
- College of Environment and Resource, Shanxi University, Taiyuan, Shanxi, 030006, PR China
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13
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Li Y, Du Z, Li T, Ren X, Yu Y, Duan J, Sun Z. MitoQ ameliorates PM 2.5-induced pulmonary fibrosis through regulating the mitochondria DNA homeostasis. CHEMOSPHERE 2023; 330:138745. [PMID: 37088202 DOI: 10.1016/j.chemosphere.2023.138745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 04/11/2023] [Accepted: 04/19/2023] [Indexed: 05/03/2023]
Abstract
Pulmonary fibrosis is a severe pulmonary disease, and may related to PM2.5 exposure. Our study aims to explore the pathogenesis of PM2.5-induced pulmonary fibrosis, and MitoQ protective effect in this process. Our results find that inflammatory cells aggregation and pulmonary fibrosis in mice lung after PM2.5 exposure. Moreover, Collagen I/III overproduction, EMT and TGF-β1/Smad2 pathway activation in mice lung and BEAS-2B after PM2.5 exposure. Fortunately, these changes were partially ameliorated after MitoQ treatment. Meanwhile, severe oxidative stress, mitochondrial homeostasis imbalance, overproduction of 8-oxoG (7,8-dihydro-8-oxoguanine), as well as the inhibition of SIRT3/OGG1 pathway have founded in mice lung or BEAS-2B after PM2.5 exposure, which were alleviated by MitoQ treatment. Collectively, our study found that oxidative stress, especially mitochondrial oxidative stress participates in the PM2.5-induced pulmonary fibrosis, and MitoQ intervention had a protective effect on this progress. Moreover, mitochondrial DNA homeostasis might participate in the pulmonary fibrosis caused by PM2.5 exposure. Our study provides a novel pathogenesis of PM2.5-caused pulmonary fibrosis and a possible targeted therapy for the pulmonary diseases triggered by PM2.5.
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Affiliation(s)
- Yang Li
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Zhou Du
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Tianyu Li
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Xiaoke Ren
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Yang Yu
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Junchao Duan
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China.
| | - Zhiwei Sun
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China.
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14
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Yin L, Han K, Jiang B, Meng Q, Aschner M, Li X, Chen R. NAT10 accelerates pulmonary fibrosis through N4-acetylated TGFB1-initiated epithelial-to-mesenchymal transition upon ambient fine particulate matter exposure. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 322:121149. [PMID: 36731737 DOI: 10.1016/j.envpol.2023.121149] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/29/2022] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Exposure to ambient fine particulate matter (PM2.5) has been linked to a higher pulmonary fibrosis risk. Dysregulation of the epitranscriptome results in abnormal expression of mRNAs during fibrosis development. N4-acetylcytidine (ac4C) is one of the most frequent RNA epigenetic alterations, however, its function in PM2.5-triggered fibrosis is yet unknown. In this study, lung epithelial and murine models were established and exposed to PM2.5 to analyze the function of ac4C alteration in pulmonary fibrosis and underlying mechanisms. Meanwhile, the expression levels of only known ac4C "writer" protein, N-acetyltransferase 10 (NAT10), were significantly induced in pulmonary epithelia, relative to the control. Subsequently, NAT10 enhanced the stability of transforming growth factor beta 1 (TGFB1) mRNA as well as protein levels. As an up-stream driver, TGFB1 accelerated EMT and fibrosis process. Inhibition of NAT10 significantly protected against pulmonary EMT and fibrosis driven by PM2.5 exposure, whereas TGFB1 overexpression reversed the protective effects of NAT10 inhibition. Thus, NAT10 accelerated PM2.5-triggered pulmonary fibrosis via increasing TGFB1 mRNA stability in an ac4C-dependent manner. Our results reveal a pivotal role of NAT10-regulated mRNA ac4C acetylation in PM2.5-triggered pulmonary fibrosis and uncover the potential epitranscriptional mechanism.
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Affiliation(s)
- Lijia Yin
- School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Ke Han
- School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Bo Jiang
- School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Qingtao Meng
- School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Forchheimer 209, 1300 Morris Park Avenue, Bronx, NY, 10461, USA
| | - Xiaobo Li
- School of Public Health, Capital Medical University, Beijing, 100069, China
| | - Rui Chen
- School of Public Health, Capital Medical University, Beijing, 100069, China; Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China; Beijing laboratory of allergic diseases, Capital Medical University; Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, 511436, China.
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15
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Wang Q, Liu S. The Effects and Pathogenesis of PM2.5 and Its Components on Chronic Obstructive Pulmonary Disease. Int J Chron Obstruct Pulmon Dis 2023; 18:493-506. [PMID: 37056681 PMCID: PMC10086390 DOI: 10.2147/copd.s402122] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/27/2023] [Indexed: 04/15/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD), a heterogeneous disease, is the leading cause of death worldwide. In recent years, air pollution, especially particulate matter (PM), has been widely studied as a contributing factor to COPD. As an essential component of PM, PM2.5 is associated with COPD prevalence, morbidity, and acute exacerbations. However, the specific pathogenic mechanisms were still unclear and deserve further research. The diversity and complexity of PM2.5 components make it challenging to get its accurate effects and mechanisms for COPD. It has been determined that the most toxic PM2.5 components are metals, polycyclic aromatic hydrocarbons (PAHs), carbonaceous particles (CPs), and other organic compounds. PM2.5-induced cytokine release and oxidative stress are the main mechanisms reported leading to COPD. Nonnegligibly, the microorganism in PM 2.5 may directly cause mononuclear inflammation or break the microorganism balance contributing to the development and exacerbation of COPD. This review focuses on the pathophysiology and consequences of PM2.5 and its components on COPD.
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Affiliation(s)
- Qi Wang
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, People’s Republic of China
| | - Sha Liu
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, People’s Republic of China
- Correspondence: Sha Liu, Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, 35 Jiefang Avenue, Zhengxiang District, Hengyang, Hunan, 421001, People’s Republic of China, Email
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16
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Zhou J, Lei R, Xu J, Peng L, Ye X, Yang D, Yang S, Yin Y, Zhang R. The Effects of Short-Term PM 2.5 Exposure on Pulmonary Function among Children with Asthma-A Panel Study in Shanghai, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:11385. [PMID: 36141658 PMCID: PMC9517124 DOI: 10.3390/ijerph191811385] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/05/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
Fine particulate matter (PM2.5) has been reported to be an important risk factor for asthma. This study was designed to evaluate the relationship between PM2.5 and lung function among children with asthma in Shanghai, China. From 2016 to 2019, a total of 70 Chinese children aged 4 to 14 in Shanghai were recruited for this panel study. The questionnaire was used to collect baseline information, and the lung function covering forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1) and peak expiratory flow (PEF) were carried out for each child more than twice during follow-up. Meanwhile, the simultaneous daily air atmospheric pollutants and meteorological data were collected. The linear mixed effect (LME) model was used to assess the relationship between air pollutants and lung function. A significantly negative association was found between PM2.5 and lung function in children with asthma. In the single-pollutant model, the largest effects of PM2.5 on lung function were found for lag 0-2, with FVC and FEV1 decreasing by 0.91% [95% confidence interval (CI): -1.75, -0.07] and 1.05% (95% CI: -2.09, 0.00), respectively, for each 10 μg/m3 increase in PM2.5. In the multi-pollution model (adjusted PM2.5 + SO2 + O3), the maximum effects of PM2.5 on FVC and FEV1 also appeared for lag 0-2, with FVC and FEV1 decreasing by 1.57% (95% CI: -2.69, -0.44) and 1.67% (95% CI: -3.05, -0.26), respectively, for each 10 μg/m3 increase in PM2.5. In the subgroup analysis, boys, preschoolers (<6 years old) and hot seasons (May to September) were more sensitive to changes. Our findings may contribute to a better understanding of the short-term exposure effects of PM2.5 on lung function in children with asthma.
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Affiliation(s)
- Ji Zhou
- Department of Atmospheric and Oceanic Sciences & Institute of Atmospheric Sciences, Fudan University, Shanghai 200437, China
- Shanghai Typhoon Institute, China Meteorological Administration (CMA), Shanghai 200030, China
- Shanghai Key Laboratory of Meteorology and Health, Shanghai Meteorological Bureau, Shanghai 200030, China
| | - Ruoyi Lei
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Jianming Xu
- Shanghai Typhoon Institute, China Meteorological Administration (CMA), Shanghai 200030, China
- Shanghai Key Laboratory of Meteorology and Health, Shanghai Meteorological Bureau, Shanghai 200030, China
| | - Li Peng
- Shanghai Typhoon Institute, China Meteorological Administration (CMA), Shanghai 200030, China
- Shanghai Key Laboratory of Meteorology and Health, Shanghai Meteorological Bureau, Shanghai 200030, China
| | - Xiaofang Ye
- Shanghai Typhoon Institute, China Meteorological Administration (CMA), Shanghai 200030, China
- Shanghai Key Laboratory of Meteorology and Health, Shanghai Meteorological Bureau, Shanghai 200030, China
| | - Dandan Yang
- Shanghai Typhoon Institute, China Meteorological Administration (CMA), Shanghai 200030, China
- Shanghai Key Laboratory of Meteorology and Health, Shanghai Meteorological Bureau, Shanghai 200030, China
| | - Sixu Yang
- Shanghai Typhoon Institute, China Meteorological Administration (CMA), Shanghai 200030, China
- Shanghai Key Laboratory of Meteorology and Health, Shanghai Meteorological Bureau, Shanghai 200030, China
| | - Yong Yin
- Department of Respiratory, School of Medicine, Shanghai Children’s Medical Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Renhe Zhang
- Department of Atmospheric and Oceanic Sciences & Institute of Atmospheric Sciences, Fudan University, Shanghai 200437, China
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