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Berkel C, Cacan E. Pollutant-induced pyroptosis in humans and other animals. Life Sci 2023; 316:121386. [PMID: 36657639 DOI: 10.1016/j.lfs.2023.121386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 01/06/2023] [Accepted: 01/08/2023] [Indexed: 01/19/2023]
Abstract
Pyroptosis is a form of lytic cell death with pro-inflammatory characteristics, induced upon the activation of certain inflammatory caspases by inflammasome complexes such as NLRP3 inflammasome. Gasdermin proteins as the mediators of pyroptosis form cell membrane pores upon activation, which release certain cellular contents into the extracellular space including inflammatory cytokines such as IL-1β and IL-18, and also damage the integrity of the cell membrane. Gasdermins have been implicated in autoimmune and inflammatory diseases, infectious diseases, deafness and cancer. Mostly in the last 2 years, diverse pollutant types including particulate matter, cadmium and polystyrene microplastics were reported to induce pyroptotic cell death in diverse tissues from mammals to birds. In the present study, we review our current understanding of pollutant-induced pyroptosis as well as current knowledge of upstream events leading to pyroptotic cell death upon exposure to pollutants.
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Affiliation(s)
- Caglar Berkel
- Department of Molecular Biology and Genetics, Tokat Gaziosmanpasa University, Tokat 60250, Turkey.
| | - Ercan Cacan
- Department of Molecular Biology and Genetics, Tokat Gaziosmanpasa University, Tokat 60250, Turkey.
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2
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Park K, Kim K, Ryu TY, Lee J, Lee MS, Son MY, Lee SJ, Park YJ, Cho HS, Kim DS. Cellular response of lung fibroblasts and epithelial cells to particulate matter 10 treatment examined via comparative transcriptome analysis. Mol Med Rep 2022; 25:82. [PMID: 35029293 DOI: 10.3892/mmr.2022.12598] [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: 08/20/2021] [Accepted: 11/09/2021] [Indexed: 11/06/2022] Open
Abstract
Particulate matter (PM) can be categorized by particle size (PM10, PM2.5 and PM1.0), which is an important factor affecting the biological response. Exposure to PM in the air (dust, smoke, dirt and biological contaminants) is clearly associated with lung disease (lung cancer, pneumonia and asthma). Although PM primarily affects lung epithelial cells, the specific response of related cell types to PM remains to be elucidated. The present study performed Gene Ontology (GO) analysis programs (Clustering GO and Database for Annotation, Visualization and Integrated Discovery) on differentially expressed genes in lung epithelial cells (WI‑38 VA‑13) and fibroblasts (WI‑38) following treatment with PM10 and evaluated the cell‑specific biological responses related to cell proliferation, apoptosis, adhesion and extracellular matrix production. The results suggested that short‑ or long‑term exposure to PM may affect cell condition and may consequently be related to several human diseases, including lung cancer and cardiopulmonary disease.
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Affiliation(s)
- Kunhyang Park
- Environmental Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Kwangho Kim
- Environmental Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Tae Young Ryu
- Environmental Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Jinkwon Lee
- Environmental Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Moo-Seung Lee
- Environmental Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Mi-Young Son
- Environmental Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Seon-Jin Lee
- Environmental Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Young-Jun Park
- Environmental Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Hyun-Soo Cho
- Environmental Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Dae-Soo Kim
- Environmental Diseases Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
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3
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Paplinska-Goryca M, Misiukiewicz-Stepien P, Proboszcz M, Nejman-Gryz P, Gorska K, Zajusz-Zubek E, Krenke R. Interactions of nasal epithelium with macrophages and dendritic cells variously alter urban PM-induced inflammation in healthy, asthma and COPD. Sci Rep 2021; 11:13259. [PMID: 34168212 PMCID: PMC8225888 DOI: 10.1038/s41598-021-92626-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 06/08/2021] [Indexed: 02/05/2023] Open
Abstract
Urban particulate matter (UPM) is an important trigger of airway inflammation. The cross-talk between the external and internal matrix in the respiratory tract occurs due to the transepithelial network of macrophages/dendritic cells. This study characterized the immune processes induced by the epithelium after UPM exposure in special regard to interactions with monocyte-derived dendritic cells (moDCs) and monocyte-derived macrophages (moMφs) in obstructive lung diseases. A triple-cell co-culture model (8 controls, 10 asthma, and 8 patients with COPD) utilized nasal epithelial cells, along with moMφs, and moDCs was exposed to UPM for 24 h. The inflammatory response of nasal epithelial cells to UPM stimulation is affected differently by cell-cell interactions in healthy people, asthma or COPD patients of which the interactions with DCs had the strongest impact on the inflammatory reaction of epithelial cells after UPM exposure. The epithelial remodeling and DCs dysfunction might accelerate the inflammation after air pollution exposure in asthma and COPD.
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Affiliation(s)
- Magdalena Paplinska-Goryca
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Banacha 1a, 02-097, Warsaw, Poland.
| | - Paulina Misiukiewicz-Stepien
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Banacha 1a, 02-097, Warsaw, Poland
- Postgraduate School of Molecular Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Malgorzata Proboszcz
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Banacha 1a, 02-097, Warsaw, Poland
| | - Patrycja Nejman-Gryz
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Banacha 1a, 02-097, Warsaw, Poland
| | - Katarzyna Gorska
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Banacha 1a, 02-097, Warsaw, Poland
| | - Elwira Zajusz-Zubek
- Faculty of Energy and Environmental Engineering, Department of Air Protection, Silesian University of Technology, Gliwice, Poland
| | - Rafal Krenke
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Banacha 1a, 02-097, Warsaw, Poland
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4
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Grytting VS, Refsnes M, Øvrevik J, Halle MS, Schönenberger J, van der Lelij R, Snilsberg B, Skuland T, Blom R, Låg M. Respirable stone particles differ in their ability to induce cytotoxicity and pro-inflammatory responses in cell models of the human airways. Part Fibre Toxicol 2021; 18:18. [PMID: 33957952 PMCID: PMC8101231 DOI: 10.1186/s12989-021-00409-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 04/08/2021] [Indexed: 11/30/2022] Open
Abstract
Background Respirable stone- and mineral particles may be a major constituent in occupational and ambient air pollution and represent a possible health hazard. However, with exception of quartz and asbestos, little is known about the toxic properties of mineral particles. In the present study, the pro-inflammatory and cytotoxic responses to six stone particle samples of different composition and with diameter below 10 μm were assessed in human bronchial epithelial cells (HBEC3-KT), THP-1 macrophages and a HBEC3-KT/THP-1 co-culture. Moreover, particle-induced lysis of human erythrocytes was assessed to determine the ability of the particles to lyse biological membranes. Finally, the role of the NLRP3 inflammasome was assessed using a NLRP3-specific inhibitor and detection of ASC oligomers and cleaved caspase-1 and IL-1β. A reference sample of pure α-quartz was included for comparison. Results Several stone particle samples induced a concentration-dependent increase in cytotoxicity and secretion of the pro-inflammatory cytokines CXCL8, IL-1α, IL-1β and TNFα. In HBEC3-KT, quartzite and anorthosite were the most cytotoxic stone particle samples and induced the highest levels of cytokines. Quartzite and anorthosite were also the most cytotoxic samples in THP-1 macrophages, while anorthosite and hornfels induced the highest cytokine responses. In comparison, few significant differences between particle samples were detected in the co-culture. Adjusting responses for differences in surface area concentrations did not fully account for the differences between particle samples. Moreover, the stone particles had low hemolytic potential, indicating that the effects were not driven by membrane lysis. Pre-incubation with a NLRP3-specific inhibitor reduced stone particle-induced cytokine responses in THP-1 macrophages, but not in HBEC3-KT cells, suggesting that the effects are mediated through different mechanisms in epithelial cells and macrophages. Particle exposure also induced an increase in ASC oligomers and cleaved caspase-1 and IL-1β in THP-1 macrophages, confirming the involvement of the NLRP3 inflammasome. Conclusions The present study indicates that stone particles induce cytotoxicity and pro-inflammatory responses in human bronchial epithelial cells and macrophages, acting through NLRP3-independent and -dependent mechanisms, respectively. Moreover, some particle samples induced cytotoxicity and cytokine release to a similar or greater extent than α-quartz. Thus, these minerals warrant further attention in future research. Supplementary Information The online version contains supplementary material available at 10.1186/s12989-021-00409-y.
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Affiliation(s)
- Vegard Sæter Grytting
- Section of Air Pollution and Noise, Department of Environmental Health, Domain of Infectious Disease Control and Environmental Health, Norwegian Institute of Public Health, PO Box 4404, Nydalen, N-0403, Oslo, Norway.
| | - Magne Refsnes
- Section of Air Pollution and Noise, Department of Environmental Health, Domain of Infectious Disease Control and Environmental Health, Norwegian Institute of Public Health, PO Box 4404, Nydalen, N-0403, Oslo, Norway
| | - Johan Øvrevik
- Section of Air Pollution and Noise, Department of Environmental Health, Domain of Infectious Disease Control and Environmental Health, Norwegian Institute of Public Health, PO Box 4404, Nydalen, N-0403, Oslo, Norway
| | | | | | | | | | - Tonje Skuland
- Section of Air Pollution and Noise, Department of Environmental Health, Domain of Infectious Disease Control and Environmental Health, Norwegian Institute of Public Health, PO Box 4404, Nydalen, N-0403, Oslo, Norway
| | | | - Marit Låg
- Section of Air Pollution and Noise, Department of Environmental Health, Domain of Infectious Disease Control and Environmental Health, Norwegian Institute of Public Health, PO Box 4404, Nydalen, N-0403, Oslo, Norway.
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5
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Eupatilin Inhibits Reactive Oxygen Species Generation via Akt/NF-κB/MAPK Signaling Pathways in Particulate Matter-Exposed Human Bronchial Epithelial Cells. TOXICS 2021; 9:toxics9020038. [PMID: 33670750 PMCID: PMC7922545 DOI: 10.3390/toxics9020038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 12/13/2022]
Abstract
Background: Eupatilin is an active flavon extracted from the Artemisia species and has properties such as antioxidant, anti-inflammatory, and anti-cancer. We examined the effect of eupatilin using fine particulate matter (FPM) and human bronchial epithelial cell line (BEAS-2B) to confirm the potential of eupatilin as a therapeutic agent for respiratory diseases caused by FPM. Methods: Reactive oxygen species (ROS) levels were checked by flow cytometry to identify if FPM and eupatilin affect ROS production. Western blotting was performed to identify the mechanism of action of eupatilin in FPM-exposed BEAS-2B cells. Results: When cells were exposed to FPM above 12.5 μg/mL concentration for 24 h, ROS production increased significantly compared to the control. When eupatilin was added to cells exposed to FPM, the ROS level decreased proportionally with the eupatilin dose. The phosphorylation of Akt, NF-κB p65, and p38 MAPK induced by FPM was significantly reduced by eupatilin, respectively. Conclusion: FPM cause respiratory disease by producing ROS in bronchial epithelial cells. Eupatilin has been shown to inhibit ROS production through altering signaling pathways. The ROS inhibiting property of eupatilin can be exploited in FPM induced respiratory disorders.
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Cui Y, Chen G, Yang Z. Mitochondrial superoxide mediates PM 2.5-induced cytotoxicity in human pulmonary lymphatic endothelial cells. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114423. [PMID: 32222623 DOI: 10.1016/j.envpol.2020.114423] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 02/29/2020] [Accepted: 03/19/2020] [Indexed: 06/10/2023]
Abstract
Exposure to airborne fine particulate matter (PM2.5) is associated with a variety of respiratory health effects and contributes to premature mortality. Lymphatic vessels are instrumental in facilitating the transport of toxic materials away from the lung to maintain alveolar clearance and have been shown to play important roles in lung injury and repair. Despite intense research efforts in delineating the effects of PM2.5 on blood vascular endothelial cells, the impacts of PM2.5 on lymphatic endothelial cells (LECs), a specialized subset of endothelial cells that comprise lymphatic vessels, remain enigmatic. Here, we conducted MTT assay and show that treatment of human pulmonary LECs with PM2.5 suppresses cell viability in a time- and dose-dependent manner. We subsequently performed Annexin V/propidium iodide labeling and demonstrate that PM2.5 induces LECs apoptosis and necrosis. Furthermore, we found that manganese superoxide dismutase (SOD2) expression and mitochondrial SOD activity were profoundly reduced following PM2.5 exposure. Mechanistically, we provide compelling evidence that PM2.5 reduces SOD2 expression through activation of Akt pathway, which leads to a disruption of mitochondrial redox homeostasis characterized by increased accumulation of mitochondrial superoxide. Conversely, mitochondria-targeted SOD mimetic (MitoTEMPO) corrects the disturbed oxidative milieu in PM2.5-treated LECs. Additionally, MitoTEMPO ameliorates the deleterious impacts of PM2.5 on mitochondrial DNA integrity and preserves the viability of LECs. Taken together, these novel data support a critical role for mitochondrial superoxide in the pathogenesis of PM2.5-induced LECs injury and identity mitochondrial-targeted antioxidants as promising therapeutic options to treat environmental lung diseases. Our findings are limited to experimental studies with primary LECs, and future investigations in animal models are warranted to shed light on the precise pathophysiology of lymphatic system in response to PM exposure.
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Affiliation(s)
- Ye Cui
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, People's Republic of China.
| | - Guang Chen
- Interventional Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, People's Republic of China
| | - Zeran Yang
- Interventional Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, People's Republic of China
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7
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Jin L, Ni J, Tao Y, Weng X, Zhu Y, Yan J, Hu B. N-acetylcysteine attenuates PM 2.5-induced apoptosis by ROS-mediated Nrf2 pathway in human embryonic stem cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 666:713-720. [PMID: 30818202 DOI: 10.1016/j.scitotenv.2019.02.307] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 02/18/2019] [Accepted: 02/19/2019] [Indexed: 06/09/2023]
Abstract
While the effects of fine particulate matter (PM2.5) on embryonic toxicity are widely accepted, its exact mechanisms have not yet been fully elucidated, which partially attribute to lack of ideal research model. Embryonic stem cells (ESCs) have the capacity to differentiate into all cell types of three germ layers. Thus, they are ideal resources for the reproductive toxicity assessment in vitro. In the present study, we investigated the effects of PM2.5 exposure on the oxidative stress and apoptosis of human ESCs (hESCs) and its possible mechanism. Our results showed that strong cytotoxicity high reactive oxygen species (ROS) level and fragmentation of nuclei were observed in the PM2.5-treated hESCs. Meanwhile, up-regulation of apoptosis as well as down-regulation of Nrf2 signaling pathway were also observed after PM2.5 treatment. However, we did not detect significant expression change or phosphorylation of Akt and Erk in PM2.5-treated hESCs. Interestingly, scavenging of PM2.5-induced ROS by N-acetylcysteine (NAC) could block cell apoptosis and rescue the activity of Nrf2 signaling pathway. In conclusion, we demonstrate that PM2.5 is toxic to hESCs by inhibition of ROS-mediated Nrf2 pathway activity. Our findings suggest activation of Nrf2 pathway will help develop new strategies for the prevention and treatment of PM2.5-associated disease.
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Affiliation(s)
- Lifang Jin
- School of Life Science, Shaoxing University, Zhejiang 312000, PR China
| | - Jian Ni
- School of Life Science, Shaoxing University, Zhejiang 312000, PR China
| | - Yuan Tao
- School of Life Science, Shaoxing University, Zhejiang 312000, PR China
| | - Xinyi Weng
- School of Life Science, Shaoxing University, Zhejiang 312000, PR China
| | - Yuling Zhu
- School of Life Science, Shaoxing University, Zhejiang 312000, PR China
| | - Junyan Yan
- School of Life Science, Shaoxing University, Zhejiang 312000, PR China.
| | - Baowei Hu
- School of Life Science, Shaoxing University, Zhejiang 312000, PR China.
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8
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Wang J, Zhang WJ, Xiong W, Lu WH, Zheng HY, Zhou X, Yuan J. PM 2.5 stimulated the release of cytokines from BEAS-2B cells through activation of IKK/NF- κB pathway. Hum Exp Toxicol 2018; 38:311-320. [PMID: 30354488 DOI: 10.1177/0960327118802628] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Previous studies indicated that exposure to fine particulate matter (PM2.5) was related to pulmonary inflammatory diseases through activation of nuclear factor kappa B (NF-κB) signaling pathway to trigger cytokine secretions in human lung carcinoma cells. To investigate the potential mechanisms underlying expression of cytokines via activated NF-κB by PM2.5, human bronchial epithelial cells (BEAS-2B cells) were treated with PM2.5 extracts at different concentrations (6, 13, 25, 50, 100, 200, and 400 µg mL-1) for 6 and 24 h. We found that 100 µg mL-1 PM2.5 increased interleukin 6 (IL-6) and IL-8 expression at 24 h (p < 0.05 or p < 0.01). Moreover, 100 µg mL-1 PM2.5 upregulated phosphorylated IκB kinase (IKK), p65, and IκBα at 6 h, which could be reversed by the IKK inhibitor Bay11-7082 (p < 0.05 or p < 0.01). The p65 subunit of NF-κB was translocated into the nucleus of the cells treated with 100 µg mL-1 PM2.5 at 6 and 24 h. Bay11-7082 partly inhibited PM2.5-induced increases of IL-6 and IL-8 secretion. The results indicated that PM2.5 extract increased IL-6 and IL-8 levels in BEAS-2B cells through activation of IKK/NF-κB pathway. Our study will contribute to better understanding of the mechanism of PM2.5-induced pulmonary inflammatory diseases.
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Affiliation(s)
- J Wang
- 1 Department of Occupational and Environmental Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.,2 The MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - W J Zhang
- 1 Department of Occupational and Environmental Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.,2 The MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - W Xiong
- 1 Department of Occupational and Environmental Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.,2 The MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - W H Lu
- 1 Department of Occupational and Environmental Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.,2 The MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - H Y Zheng
- 1 Department of Occupational and Environmental Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.,2 The MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - X Zhou
- 1 Department of Occupational and Environmental Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.,2 The MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.,Both authors have contributed equally to this work
| | - J Yuan
- 1 Department of Occupational and Environmental Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.,2 The MOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.,Both authors have contributed equally to this work
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9
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De Grove KC, Provoost S, Brusselle GG, Joos GF, Maes T. Insights in particulate matter-induced allergic airway inflammation: Focus on the epithelium. Clin Exp Allergy 2018; 48:773-786. [PMID: 29772098 DOI: 10.1111/cea.13178] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 05/02/2018] [Accepted: 05/02/2018] [Indexed: 01/01/2023]
Abstract
Outdoor air pollution is a major environmental health problem throughout the world. In particular, exposure to particulate matter (PM) has been associated with the development and exacerbation of several respiratory diseases, including asthma. Although the adverse health effects of PM have been demonstrated for many years, the underlying mechanisms have not been fully identified. In this review, we focus on the role of the lung epithelium and specifically highlight multiple cytokines in PM-induced respiratory responses. We describe the available literature on the topic including in vitro studies, findings in humans (ie observations in human cohorts, human controlled exposure and ex vivo studies) and in vivo animal studies. In brief, it has been shown that exposure to PM modulates the airway epithelium and promotes the production of several cytokines, including IL-1, IL-6, IL-8, IL-25, IL-33, TNF-α, TSLP and GM-CSF. Further, we propose that PM-induced type 2-promoting cytokines are important mediators in the acute and aggravating effects of PM on airway inflammation. Targeting these cytokines could therefore be a new approach in the treatment of asthma.
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Affiliation(s)
- K C De Grove
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - S Provoost
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - G G Brusselle
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - G F Joos
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - T Maes
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
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10
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Popadić D, Heßelbach K, Richter-Brockmann S, Kim GJ, Flemming S, Schmidt-Heck W, Häupl T, Bonin M, Dornhof R, Achten C, Günther S, Humar M, Merfort I. Gene expression profiling of human bronchial epithelial cells exposed to fine particulate matter (PM 2.5) from biomass combustion. Toxicol Appl Pharmacol 2018; 347:10-22. [PMID: 29596927 DOI: 10.1016/j.taap.2018.03.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/08/2018] [Accepted: 03/21/2018] [Indexed: 02/08/2023]
Affiliation(s)
- Désirée Popadić
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Biology and Biotechnology, Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Katharina Heßelbach
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Biology and Biotechnology, Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Sigrid Richter-Brockmann
- Institute of Geology and Palaeontology - Applied Geology, University of Muenster, Muenster, Germany
| | - Gwang-Jin Kim
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Bioinformatics, Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Stephan Flemming
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Bioinformatics, Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Wolfgang Schmidt-Heck
- Leibniz Institute for Natural Product Research and Infection Biology - Hans-Knöll-Institute (HKI), Jena, Germany
| | - Thomas Häupl
- Department of Rheumatology and Clinical Immunology, Charité University Hospital Berlin, Berlin, Germany
| | - Marc Bonin
- Department of Rheumatology and Clinical Immunology, Charité University Hospital Berlin, Berlin, Germany
| | - Regina Dornhof
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Biology and Biotechnology, Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Christine Achten
- Institute of Geology and Palaeontology - Applied Geology, University of Muenster, Muenster, Germany
| | - Stefan Günther
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Bioinformatics, Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Matjaz Humar
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Biology and Biotechnology, Albert-Ludwigs-University Freiburg, Freiburg, Germany.
| | - Irmgard Merfort
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Biology and Biotechnology, Albert-Ludwigs-University Freiburg, Freiburg, Germany; Spemann Graduate School of Biology and Medicine (SGBM), Albert-Ludwigs University Freiburg, Freiburg, Germany.
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11
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Gour N, Sudini K, Khalil SM, Rule AM, Lees P, Gabrielson E, Groopman JD, Lajoie S, Singh A. Unique pulmonary immunotoxicological effects of urban PM are not recapitulated solely by carbon black, diesel exhaust or coal fly ash. ENVIRONMENTAL RESEARCH 2018; 161:304-313. [PMID: 29178979 PMCID: PMC5747992 DOI: 10.1016/j.envres.2017.10.041] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 10/12/2017] [Accepted: 10/24/2017] [Indexed: 05/21/2023]
Abstract
BACKGROUND Exposure to particulate matter (PM) is increasing worldwide as a result of increased human activity, the rapid industrialization of developing countries, and effects of climate change. Adverse effects of PM on human health are well documented, and because PM exposure occurs mostly through the airways, PM has especially deleterious impact on the lungs. OBJECTIVE We investigated whether surrogate PM particles like carbon black (CB), diesel exhaust particle (DEP), coal fly ash (CFA) can recapitulate the allergic airway inflammatory response induced by urban particulate matter. METHODS We compared the pro-inflammatory potential of urban PM collected from New York (NYC) and Baltimore (Balt) with CB, DEP and CFA surrogate PM particles. Eight to ten weeks old BALB/cJ mice were exposed through the airways to particulate material, and markers of airway inflammation were determined. Specifically, we assessed cellular influx, mucus production, lung function, cytokine levels as well as immune cell profiling of the lungs. RESULTS Herein, we demonstrate that exposure to equivalent mass of stand-alone surrogate PM particles like CB, DEP and CFA, fails to induce significant airway inflammatory response seen after similar exposure to urban PMs. Specifically, we observe that PM collected from New York (NYC) and Baltimore city (Balt) triggers a mixed Th2/Th17 response accompanied by eosinophilic and neutrophilic influx, mucus production and airway hyperresponsiveness (AHR). Although the immune profile of NYC and Baltimore PMs are similar, they demonstrate considerable differences in their potency. Baltimore PM induced more robust airway inflammation, AHR, and Th2 cytokine production, possibly due to the greater metal content in Baltimore PM. CONCLUSIONS Urban particulate matter with its unique physiochemical properties and heterogeneous composition elicits a mixed Th2/Th17 allergic airway response that is not seen after similar exposures to surrogate PM particles.
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Affiliation(s)
- Naina Gour
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States; Solomon H. Snyder Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD, United States
| | - Kuladeep Sudini
- Department of Health, Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Syed Muaz Khalil
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins School of Medicine, Baltimore, MD, United States
| | - Ana M Rule
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Peter Lees
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Edward Gabrielson
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, MD, United States
| | - John D Groopman
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Stephane Lajoie
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.
| | - Anju Singh
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.
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12
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Wagner DR, Clark NW. Effects of ambient particulate matter on aerobic exercise performance. J Exerc Sci Fit 2018; 16:12-15. [PMID: 30662486 PMCID: PMC6323157 DOI: 10.1016/j.jesf.2018.01.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 01/03/2018] [Accepted: 01/04/2018] [Indexed: 11/05/2022] Open
Abstract
Background/Objective Wintertime thermal inversions in narrow mountain valleys create a ceiling effect, increasing concentration of small particulate matter (PM2.5). Despite potential health risks, many people continue to exercise outdoors in thermal inversions. This study measured the effects of ambient PM2.5 exposure associated with a typical thermal inversion on exercise performance, pulmonary function, and biological markers of inflammation. Methods Healthy, active adults (5 males, 11 females) performed two cycle ergometer time trials outdoors in a counterbalanced design: 1) low ambient PM2.5 concentrations (<12 μg/m3), and 2) an air quality index (AQI) ranking of “yellow.” Variables of interest were exercise performance, exhaled nitric oxide (eNO), c-reactive protein (CRP), forced vital capacity (FVC), and forced expiratory volume in 1 s (FEV1). Results Despite a significant difference in mean PM2.5 concentration of 9.3 ± 3.0 μg/m3 between trials (p < .001), there was no significant difference (p = .424) in the distance covered during low PM2.5 conditions (9.9 ± 1.7 km) compared to high PM2.5 conditions (10.1 ± 1.5 km). There were no clinically significant differences across time or between trials for eNO, CRP, FVC, or FEV1. Additionally, there were no dose-response relationships (p > .05) for PM2.5 concentration and the measured variables. Conclusion An acute bout of vigorous exercise during an AQI of “yellow” did not diminish exercise performance in healthy adults, nor did it have a negative effect on pulmonary function or biological health markers. These variables might not be sensitive to small changes from acute, mild PM2.5 exposure.
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Affiliation(s)
- Dale R Wagner
- Kinesiology & Health Science Department, Utah State University, USA
| | - Nicolas W Clark
- Kinesiology & Health Science Department, Utah State University, USA
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13
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Jeong SC, Cho Y, Song MK, Lee E, Ryu JC. Epidermal growth factor receptor (EGFR)-MAPK-nuclear factor(NF)-κB-IL8: A possible mechanism of particulate matter(PM) 2.5-induced lung toxicity. ENVIRONMENTAL TOXICOLOGY 2017; 32:1628-1636. [PMID: 28101945 DOI: 10.1002/tox.22390] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 12/16/2017] [Accepted: 12/22/2016] [Indexed: 05/20/2023]
Abstract
Airway inflammation plays a central role in the pathophysiology of diverse pulmonary diseases. In this study, we investigated whether exposure to particulate matter (PM) 2.5, a PM with an aerodynamic diameter of less than 2.5 µm, enhances inflammation-related toxicity in the human respiratory system through activation of the epidermal growth factor receptor (EGFR) signaling pathway. Through cytokine antibody array analysis of two extracts of PM2.5 [water (W-PM2.5 ) and organic (O-PM2.5 ) soluble extracts] exposed to A549 (human alveolar epithelial cell), we identified eight cytokines changed their expression with W-PM2.5 and three cytokines with O-PM2.5 . Among them, epidermal growth factor (EGF) was commonly up-regulated by W-PM2.5 and O-PM2.5 . Then, in both groups, we can identify the increase in EGF receptor protein levels. Likewise, increases in the phosphorylation of ERK1/2 MAP kinase and acetylation of nuclear factor(NF)-κB were detected. We also detected an increase in IL-8 that was related to inflammatory response. And using the erlotinib as an inhibitor of EGFR, we identified the erlotinib impaired the phosphorylation of EGFR, ERK1/2, acetylation of NF-κB proteins and decreased IL-8. Furthermore, at in vivo model, we were able to identify similar patterns. These results suggest that PM2.5 may contribute to an abnormality in the human respiratory system through EGFR, MAP kinase, NF-κB, and IL-8 induced toxicity signaling. © 2016 Wiley Periodicals, Inc. Environ Toxicol 32: 1628-1636, 2017.
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Affiliation(s)
- Seung-Chan Jeong
- Cellular and Molecular Toxicology Laboratory, Korea Institute of Science & Technology, P.O. Box 131, Cheongryang, Seoul, 130-650, Korea
- Department of Preventive Medicine, Korea University, Korea Project for Reducing Light Pollution Effects to Human and Ecosystem, Korea
| | - Yoon Cho
- Cellular and Molecular Toxicology Laboratory, Korea Institute of Science & Technology, P.O. Box 131, Cheongryang, Seoul, 130-650, Korea
| | - Mi-Kyung Song
- National Center for Efficacy evaluation for Respiratory disease product, Jeonbuk Department of Inhalation Research, Korea Institute of Toxicology, 30 Baehak1-gil, Jeongeup, Jeollabuk-do, 53212, Republic of Korea
| | - Eunil Lee
- Department of Preventive Medicine, Korea University, Korea Project for Reducing Light Pollution Effects to Human and Ecosystem, Korea
| | - Jae-Chun Ryu
- Cellular and Molecular Toxicology Laboratory, Korea Institute of Science & Technology, P.O. Box 131, Cheongryang, Seoul, 130-650, Korea
- Department of Pharmacology and Toxicology, Human and Environmental Toxicology, Korea University of Science and Technology, Gajeong-Ro 217, Yuseong-gu, Daejeon, 305-350, Korea
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14
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Roper C, Chubb LG, Cambal L, Tunno B, Clougherty JE, Fattman C, Mischler SE. Association of IL-6 with PM 2.5 Components: Importance of Characterizing Filter-Based PM 2.5 Following Extraction. WATER, AIR, AND SOIL POLLUTION 2017; 228:43. [PMID: 28989204 PMCID: PMC5628506 DOI: 10.1007/s11270-016-3219-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Filter-based toxicology studies are conducted to establish the biological plausibility of the well-established health impacts associated with fine particulate matter (PM2.5) exposure. Ambient PM2.5 collected on filters is extracted into solution for toxicology applications, but frequently, characterization is nonexistent or only performed on filter-based PM2.5, without consideration of compositional differences that occur during the extraction processes. To date, the impact of making associations to measured components in ambient instead of extracted PM2.5 has not been investigated. Filter-based PM2.5 was collected at locations (n = 5) and detailed characterization of both ambient and extracted PM2.5 was performed. Alveolar macrophages (AMJ2-C11) were exposed (3, 24, and 48 h) to PM2.5 and the pro-inflammatory cytokine interleukin (IL)-6 was measured. IL-6 release differed significantly between PM2.5 collected from different locations; surprisingly, IL-6 release was highest following treatment with PM2.5 from the lowest ambient concentration location. IL-6 was negatively correlated with the sum of ambient metals analyzed, as well as with concentrations of specific constituents which have been previously associated with respiratory health effects. However, positive correlations of IL-6 with extracted concentrations indicated that the negative associations between IL-6 and ambient concentrations do not accurately represent the relationship between inflammation and PM2.5 exposure. Additionally, seven organic compounds had significant associations with IL-6 release when considering ambient concentrations, but they were not detected in the extracted solution. Basing inflammatory associations on ambient concentrations that are not necessarily representative of in vitro exposures creates misleading results; this study highlights the importance of characterizing extraction solutions to conduct accurate health impact research.
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Affiliation(s)
- Courtney Roper
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Lauren G Chubb
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA, Office of Mine Safety and Health Research, National Institute for Occupational Safety and Health, Pittsburgh, PA, USA
| | - Leah Cambal
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Brett Tunno
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Jane E Clougherty
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Cheryl Fattman
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Steven E Mischler
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA, Office of Mine Safety and Health Research, National Institute for Occupational Safety and Health, Pittsburgh, PA, USA
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15
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The complex cascade of cellular events governing inflammasome activation and IL-1β processing in response to inhaled particles. Part Fibre Toxicol 2016; 13:40. [PMID: 27519871 PMCID: PMC4983011 DOI: 10.1186/s12989-016-0150-8] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 07/12/2016] [Indexed: 01/05/2023] Open
Abstract
The innate immune system is the first line of defense against inhaled particles. Macrophages serve important roles in particle clearance and inflammatory reactions. Following recognition and internalization by phagocytes, particles are taken up in vesicular phagolysosomes. Intracellular phagosomal leakage, redox unbalance and ionic movements induced by toxic particles result in pro-IL-1β expression, inflammasome complex engagement, caspase-1 activation, pro-IL-1β cleavage, biologically-active IL-1β release and finally inflammatory cell death termed pyroptosis. In this review, we summarize the emerging signals and pathways involved in the expression, maturation and secretion of IL-1β during these responses to particles. We also highlight physicochemical characteristics of particles (size, surface and shape) which determine their capacity to induce inflammasome activation and IL-1β processing.
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16
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Gene expression profiling of human alveolar epithelial cells (A549 cells) exposed to atmospheric particulate matter 2.5 (PM2.5) collected from Seoul, Korea. Mol Cell Toxicol 2015. [DOI: 10.1007/s13273-014-0040-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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17
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Li N, Bhattacharya P, Karavalakis G, Williams K, Gysel N, Rivera-Rios N. Emissions from commercial-grade charbroiling meat operations induce oxidative stress and inflammatory responses in human bronchial epithelial cells. Toxicol Rep 2014; 1:802-811. [PMID: 28962293 PMCID: PMC5598377 DOI: 10.1016/j.toxrep.2014.09.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 09/19/2014] [Accepted: 09/24/2014] [Indexed: 01/06/2023] Open
Abstract
Commercial charbroiling emissions are a significant source of ambient particulate matter (PM) in urban settings. The objective of this study was to determine whether organic extract of PM emissions from commercial charbroiling meat operations could induce an inflammatory response in human bronchial epithelial cells and whether this effect was mediated by oxidative stress. PM samples were collected during cooking hamburgers on a commercial-grade under-fired charbroiler and sequentially extracted with water and methanol to obtain the aqueous PM suspension (AqPM) and organic extract (OE). The pro-oxidative and pro-inflammatory effects of OE were assessed using human bronchial epithelial cell line BEAS-2B. While AqPM did not have any effect, OE effectively induced the expression of heme oxygennase-1 and cyclooxygenase-2 in BEAS-2B cells. OE also up-regulated the levels of IL-6, IL-8, and prostaglandin E2. OE-induced cellular inflammatory response could be effectively suppressed by the antioxidant N-acetyl cysteine, nuclear factor (erythroid-derived 2)-like 2 activator sulforaphane and p38 MAPK inhibitor SB203580. In conclusion, organic chemicals emitted from commercial charbroiling meat operations could induce an inflammatory response in human bronchial epithelial cells, which was mediated by oxidative stress and p38 MAPK.
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Key Words
- AqPM, aqueous PM suspension
- COX, cyclooxygenase
- Commercial charbroiling meat emissions
- DEP, diesel exhaust particles
- Environmental and occupational health
- HO-1, heme oxygenase-1
- Human bronchial epithelial cells
- Inflammatory response
- MAPK, mitogen activated protein kinase
- NAC, N-acetyl cysteine
- OC, organic carbon
- OE, organic extract
- Oxidative stress
- PAH, polycyclic aromatic hydrocarbon
- PG, prostaglandin
- PM, particulate matter
- SFN, sulforaphane
- SOD2, superoxide dismutase 2
- TSLP, thymic stromal lymphopoietin
- UFP, ultrafine particles
- p38 MAPK
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Affiliation(s)
- Ning Li
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Poulomi Bhattacharya
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Georgios Karavalakis
- Center for Environmental Research and Technology, Bourns College of Engineering, University of California Riverside, Riverside, CA, USA
| | - Keisha Williams
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Nicholas Gysel
- Center for Environmental Research and Technology, Bourns College of Engineering, University of California Riverside, Riverside, CA, USA
| | - Nachamari Rivera-Rios
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
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18
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Verstraelen S, Remy S, Casals E, De Boever P, Witters H, Gatti A, Puntes V, Nelissen I. Gene expression profiles reveal distinct immunological responses of cobalt and cerium dioxide nanoparticles in two in vitro lung epithelial cell models. Toxicol Lett 2014; 228:157-69. [PMID: 24821434 DOI: 10.1016/j.toxlet.2014.05.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 04/30/2014] [Accepted: 05/02/2014] [Indexed: 12/27/2022]
Abstract
Fragmentary knowledge exists on cellular signaling responses underlying possible adverse health effects of CoO- and CeO2-nanoparticles (NP)s after inhalation. We aimed to perform a time kinetic study of gene expression profiles induced by these NPs in alveolar A549 and bronchial BEAS-2B epithelial cells, and investigated possible immune system modulation. The kinetics of the cell responses induced by the NPs were different between the lung epithelial models. Both CoO- and CeO2-NP exposure induced mainly downregulation of gene transcription. BEAS-2B cells were found to be more sensitive, as they showed a higher number of differentially expressed transcripts (DET) at a 10-fold lower NP-concentration than A549 cells. Hierarchical clustering of all DET indicated that the transcriptional responses were heterogeneous among the two cell types and two NPs. Between 1% and 14% DET encoding markers involved in immune processes were observed. The transcriptional impact of the metal oxide NPs appeared to be cell-dependent, both at the general and immune response level, whereas each lung epithelial cell model responded differently to the two NP types. Thus, the study provides gene expression markers and immune processes involved in CoO- and CeO2-NP-induced toxicity, and demonstrates the usefulness of comprehensive-omics studies to differentiate between NP responses.
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Affiliation(s)
- Sandra Verstraelen
- Flemish Institute for Technological Research (VITO NV), Environmental Risk and Health Unit, Mol, Belgium.
| | - Sylvie Remy
- Flemish Institute for Technological Research (VITO NV), Environmental Risk and Health Unit, Mol, Belgium.
| | - Eudald Casals
- Institut Català de Nanotecnologia (ICN), Barcelona, Spain.
| | - Patrick De Boever
- Flemish Institute for Technological Research (VITO NV), Environmental Risk and Health Unit, Mol, Belgium; Hasselt University, Centre for Environmental Sciences, Diepenbeek, Belgium.
| | - Hilda Witters
- Flemish Institute for Technological Research (VITO NV), Environmental Risk and Health Unit, Mol, Belgium.
| | - Antonietta Gatti
- Università di Modena e Reggio Emilia, Laboratorio Biomateriali, Modena, Italy.
| | - Victor Puntes
- Institut Català de Nanotecnologia (ICN), Barcelona, Spain.
| | - Inge Nelissen
- Flemish Institute for Technological Research (VITO NV), Environmental Risk and Health Unit, Mol, Belgium.
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19
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Zhang Z, Niu X, Lu C, Jiang M, Xiao GG, Lu A. The effect of curcumin on human bronchial epithelial cells exposed to fine particulate matter: a predictive analysis. Molecules 2012; 17:12406-26. [PMID: 23090021 PMCID: PMC6268531 DOI: 10.3390/molecules171012406] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Revised: 10/15/2012] [Accepted: 10/16/2012] [Indexed: 12/03/2022] Open
Abstract
Fine particulate matter (PM2.5) has been associated in humans with inflammation, oxidative stress and cancer. Studies had shown that curcumin could potentially inhibit these effects; however, there had been no in vivo or in vitro reports about the effects of curcumin on organisms exposed to PM2.5. This predictive study explored the possible biological functions and pathways involved in the mechanism of curcumin inhibition of the hazardous effects of PM2.5. For predictive analysis, microarray data were used to investigate the effect of PM2.5 on human bronchial epithelial cells (HBEC), and human target proteins of curcumin were retrieved from PubChem. Two protein-protein interaction (PPI) networks were established based upon differential genes and target proteins, respectively, and the common network of these two networks was found. Functional and pathway analysis of the common network was performed using the Ingenuity Pathways Analysis (IPA) software. The results suggested that the predictive effects of curcumin on HBEC exposed to PM2.5 were involved in bio-functions, including inflammatory response of airway, cancerogenesis, and apoptosis, and in pathways such as cancer, glucocorticoid receptor signaling, and NF-kappaB signaling. This study predicted for the first time that curcumin could be a potential therapeutic agent for protecting the human airway from the hazardous effects of PM2.5.
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Affiliation(s)
- Zhiguo Zhang
- Institute of Basic Theory, China Academy of Chinese Medical Sciences, No.16 Nanxiaojie, Dongzhimennei, Beijing 100700, China;
| | - Xuyan Niu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, No.16 Nanxiaojie, Dongzhimennei, Beijing 100700, China; (X.N.); (C.L.); (M.J.)
| | - Cheng Lu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, No.16 Nanxiaojie, Dongzhimennei, Beijing 100700, China; (X.N.); (C.L.); (M.J.)
| | - Miao Jiang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, No.16 Nanxiaojie, Dongzhimennei, Beijing 100700, China; (X.N.); (C.L.); (M.J.)
| | - Gary G. Xiao
- Functional Genomics & Proteomics Laboratory, Osteoporosis Research Center, Creighton University Medical Center, 601N 30th ST, Suite 6730, Omaha, NE 68131, USA
- Authors to whom correspondence should be addressed; (A.L.); (G.G.X.); Tel.: +86-10-6406-7611 (A.L.); Fax: +86-10-8403-2881 (A.L.); Tel.: +1-402-280-5911 (G.G.X.); Fax: +1-402-280-4284 (G.G.X.)
| | - Aiping Lu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, No.16 Nanxiaojie, Dongzhimennei, Beijing 100700, China; (X.N.); (C.L.); (M.J.)
- School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Hong Kong, China
- Authors to whom correspondence should be addressed; (A.L.); (G.G.X.); Tel.: +86-10-6406-7611 (A.L.); Fax: +86-10-8403-2881 (A.L.); Tel.: +1-402-280-5911 (G.G.X.); Fax: +1-402-280-4284 (G.G.X.)
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