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Wang L, Cui Y, Liu H, Wu J, Li J, Liu X. PM2.5 aggravates airway inflammation in asthmatic mice: activating NF-κB via MyD88 signaling pathway. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2023; 33:563-574. [PMID: 35227140 DOI: 10.1080/09603123.2022.2041561] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The role of PM2.5 in the bronchial asthma remains unclear. In this study, the deficient mice of TLR4-/-, TLR2-/- and MyD88 -/- were used to establish asthma model. The effects of PM2.5 on the inflammatory response in lung tissue of these mice were observed. PM2.5 increased alveolar macrophages and neutrophils, up-regulated the IL-12 and KC expression in WT mice, but down-regulated their levels in TLR2 -/-, TLR4 -/- and MyD88 -/- mice. OVA+PM2.5 stimulated neutrophil count in WT mice, but it decreased in TLR2 -/- and TLR4 -/- mice. OVA+PM2.5 also increased the Eotaxin, IL-5, IL-13 and MCP-3 expression levels, and OVA specific IgE and IgG1 in serum also increased in WT group. PM2.5 may activate NF-κB through the TLR2/TLR4/MyD88 signaling pathway and aggravate allergic inflammation of lung in asthmatic mice. The microelements in PM2.5 granules, such as lipopolysaccharide, may be an important factor in the high incidence of asthma.
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Affiliation(s)
- Lei Wang
- Department of Respiratory Medicine, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Taiyuan, Shanxi, China
| | - Yanzhi Cui
- Department of Respiratory Medicine, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Taiyuan, Shanxi, China
| | - Hu Liu
- Department of Respiratory Medicine, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Taiyuan, Shanxi, China
| | - Jing Wu
- Department of Respiratory Medicine, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Taiyuan, Shanxi, China
| | - Jie Li
- Department of Respiratory Medicine, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Taiyuan, Shanxi, China
| | - Xiansheng Liu
- Department of Respiratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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2
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Nagahawatta DP, Liyanage NM, Jayawardhana HHACK, Jayawardena TU, Lee HG, Heo MS, Jeon YJ. Eckmaxol Isolated from Ecklonia maxima Attenuates Particulate-Matter-Induced Inflammation in MH-S Lung Macrophage. Mar Drugs 2022; 20:766. [PMID: 36547913 PMCID: PMC9785775 DOI: 10.3390/md20120766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/02/2022] [Accepted: 12/04/2022] [Indexed: 12/12/2022] Open
Abstract
Airborne particulate matter (PM) originating from industrial processes is a major threat to the environment and health in East Asia. PM can cause asthma, collateral lung tissue damage, oxidative stress, allergic reactions, and inflammation. The present study was conducted to evaluate the protective effect of eckmaxol, a phlorotannin isolated from Ecklonia maxima, against PM-induced inflammation in MH-S macrophage cells. It was found that PM induced inflammation in MH-S lung macrophages, which was inhibited by eckmaxol treatment in a dose-dependent manner (21.0−84.12 µM). Eckmaxol attenuated the expression of cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) in PM-induced lung macrophages. Subsequently, nitric oxide (NO), prostaglandin E-2 (PGE-2), and pro-inflammatory cytokines (IL-1β, IL-6, and TNF-α) were downregulated. PM stimulated inflammation in MH-S lung macrophages by activating Toll-like receptors (TLRs), nuclear factor-kappa B (NF-κB), and mitogen-activated protein kinase (MAPK) pathways. Eckmaxol exhibited anti-inflammatory properties by suppressing the activation of TLRs, downstream signaling of NF-κB (p50 and p65), and MAPK pathways, including c-Jun N-terminal kinase (JNK) and p38. These findings suggest that eckmaxol may offer substantial therapeutic potential in the treatment of inflammatory diseases.
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Affiliation(s)
- D. P. Nagahawatta
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Jeju Self-Governing Province, Republic of Korea
| | - N. M. Liyanage
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Jeju Self-Governing Province, Republic of Korea
| | - H. H. A. C. K. Jayawardhana
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Jeju Self-Governing Province, Republic of Korea
| | - Thilina U. Jayawardena
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Jeju Self-Governing Province, Republic of Korea
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC G8Z 4M3, Canada
| | - Hyo-Geun Lee
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Jeju Self-Governing Province, Republic of Korea
| | - Moon-Soo Heo
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Jeju Self-Governing Province, Republic of Korea
| | - You-Jin Jeon
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Jeju Self-Governing Province, Republic of Korea
- Marine Science Institute, Jeju National University, Jeju 63333, Jeju Self-Governing Province, Republic of Korea
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Li CH, Tsai ML, Chiou HY(C, Lin YC, Liao WT, Hung CH. Role of Macrophages in Air Pollution Exposure Related Asthma. Int J Mol Sci 2022; 23:ijms232012337. [PMID: 36293195 PMCID: PMC9603963 DOI: 10.3390/ijms232012337] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/30/2022] [Accepted: 10/13/2022] [Indexed: 11/05/2022] Open
Abstract
Asthma is a chronic inflammatory airway disease characterized by variable airflow obstruction, bronchial hyper-responsiveness, and airway inflammation. The chronic inflammation of the airway is mediated by many cell types, cytokines, chemokines, and inflammatory mediators. Research suggests that exposure to air pollution has a negative impact on asthma outcomes in adult and pediatric populations. Air pollution is one of the greatest environmental risks to health, and it impacts the lungs' innate and adaptive defense systems. A major pollutant in the air is particulate matter (PM), a complex component composed of elemental carbon and heavy metals. According to the WHO, 99% of people live in air pollution where air quality levels are lower than the WHO air quality guidelines. This suggests that the effect of air pollution exposure on asthma is a crucial health issue worldwide. Macrophages are essential in recognizing and processing any inhaled foreign material, such as PM. Alveolar macrophages are one of the predominant cell types that process and remove inhaled PM by secreting proinflammatory mediators from the lung. This review focuses on macrophages and their role in orchestrating the inflammatory responses induced by exposure to air pollutants in asthma.
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Affiliation(s)
- Chung-Hsiang Li
- Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Pediatrics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung 801, Taiwan
| | - Mei-Lan Tsai
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Pediatrics, Faculty of Pediatrics, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Hsin-Ying (Clair) Chiou
- Teaching and Research Center of Kaohsiung Municipal Siaogang Hospital, Kaohsiung 812, Taiwan
| | - Yi-Ching Lin
- Department of Laboratory Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Laboratory Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Doctoral Degree Program in Toxicology, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Wei-Ting Liao
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Biotechnology, College of Life Science, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Correspondence: (W.-T.L.); or (C.-H.H.); Tel.: +886-7-312-1101 (ext. 2791) (W.-T.L.); +886-7-311-5140 (C.-H.H.); Fax: +886-7-312-5339 (W.-T.L.); +886-7-321-3931 (C.-H.H.)
| | - Chih-Hsing Hung
- Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Pediatrics, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung 801, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Pediatrics, Kaohsiung Municipal Siaogang Hospital, Kaohsiung 812, Taiwan
- Correspondence: (W.-T.L.); or (C.-H.H.); Tel.: +886-7-312-1101 (ext. 2791) (W.-T.L.); +886-7-311-5140 (C.-H.H.); Fax: +886-7-312-5339 (W.-T.L.); +886-7-321-3931 (C.-H.H.)
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Luo J, Liu H, Hua S, Song L. The Correlation of PM2.5 Exposure with Acute Attack and Steroid Sensitivity in Asthma. BIOMED RESEARCH INTERNATIONAL 2022; 2022:2756147. [PMID: 36033576 PMCID: PMC9410784 DOI: 10.1155/2022/2756147] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/05/2022] [Accepted: 08/08/2022] [Indexed: 11/17/2022]
Abstract
Bronchial asthma is a common chronic inflammatory disease of the respiratory system. Asthma primarily manifests in reversible airflow limitation and airway inflammation, airway remodeling, and persistent airway hyperresponsiveness. PM2.5, also known as fine particulate matter, is the main component of air pollution and refers to particulate matter with an aerodynamic diameter of ≤2.5 μm. PM2.5 can be suspended in the air for an extensive time and, in addition, can contain or adsorb heavy metals, toxic gases, polycyclic aromatic hydrocarbons, bacterial viruses, and other harmful substances. Epidemiological studies have demonstrated that, in addition to increasing the incidence of asthma, PM2.5 exposure results in a significant increase in the incidence of hospital visits and deaths due to acute asthma attacks. Furthermore, PM2.5 was reported to induce glucocorticoid resistance in asthmatic individuals. Although various countries have implemented strict control measures, due to the wide range of PM2.5 sources, complex components, and unknown pathogenic mechanisms involving the atmosphere, environment, chemistry, and toxicology, PM2.5 damage to human health still cannot be effectively controlled. In this present review, we summarized the current knowledge base regarding the relationship between PM2.5 toxicity and the onset, acute attack prevalence, and steroid sensitivity in asthma.
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Affiliation(s)
- Jingjing Luo
- Department of Respiratory Medicine, Center for Pathogen Biology and Infectious Diseases, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun 130021, China
| | - Han Liu
- Department of Respiratory Medicine, Center for Pathogen Biology and Infectious Diseases, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun 130021, China
| | - Shucheng Hua
- Department of Respiratory Medicine, Center for Pathogen Biology and Infectious Diseases, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun 130021, China
| | - Lei Song
- Department of Respiratory Medicine, Center for Pathogen Biology and Infectious Diseases, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun 130021, China
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Tuazon JA, Kilburg-Basnyat B, Oldfield LM, Wiscovitch-Russo R, Dunigan-Russell K, Fedulov AV, Oestreich KJ, Gowdy KM. Emerging Insights into the Impact of Air Pollution on Immune-Mediated Asthma Pathogenesis. Curr Allergy Asthma Rep 2022; 22:77-92. [PMID: 35394608 PMCID: PMC9246904 DOI: 10.1007/s11882-022-01034-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2022] [Indexed: 12/13/2022]
Abstract
PURPOSE OF REVIEW Increases in ambient levels of air pollutants have been linked to lung inflammation and remodeling, processes that lead to the development and exacerbation of allergic asthma. Conventional research has focused on the role of CD4+ T helper 2 (TH2) cells in the pathogenesis of air pollution-induced asthma. However, much work in the past decade has uncovered an array of air pollution-induced non-TH2 immune mechanisms that contribute to allergic airway inflammation and disease. RECENT FINDINGS In this article, we review current research demonstrating the connection between common air pollutants and their downstream effects on non-TH2 immune responses emerging as key players in asthma, including PRRs, ILCs, and non-TH2 T cell subsets. We also discuss the proposed mechanisms by which air pollution increases immune-mediated asthma risk, including pre-existing genetic risk, epigenetic alterations in immune cells, and perturbation of the composition and function of the lung and gut microbiomes. Together, these studies reveal the multifaceted impacts of various air pollutants on innate and adaptive immune functions via genetic, epigenetic, and microbiome-based mechanisms that facilitate the induction and worsening of asthma.
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Affiliation(s)
- J A Tuazon
- Department of Microbial Infection and Immunity, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
- Medical Scientist Training Program, The Ohio State University, Columbus, OH, 43210, USA
| | - B Kilburg-Basnyat
- Department of Pharmacology and Toxicology, East Carolina University, Greenville, NC, 27858, USA
| | - L M Oldfield
- Department of Synthetic Biology and Bioenergy, J. Craig Venter Institute, Rockville, MD, 20850, USA
- Department of Synthetic Genomics, Replay Holdings LLC, San Diego, 92121, USA
| | - R Wiscovitch-Russo
- Department of Synthetic Biology and Bioenergy, J. Craig Venter Institute, Rockville, MD, 20850, USA
| | - K Dunigan-Russell
- Division of Pulmonary, Critical Care, and Sleep Medicine, The Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, 43210, USA
| | - A V Fedulov
- Division of Surgical Research, Department of Surgery, Alpert Medical School, Brown University, Rhode Island Hospital, Providence, RI, 02903, USA
| | - K J Oestreich
- Department of Microbial Infection and Immunity, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
- Pelotonia Institute for Immuno-Oncology, The Ohio State University, The James Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - K M Gowdy
- Division of Pulmonary, Critical Care, and Sleep Medicine, The Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, 43210, USA.
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6
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Anderson A, Rezamand P, Skibiel AL. Effects of wildfire smoke exposure on innate immunity, metabolism, and milk production in lactating dairy cows. J Dairy Sci 2022; 105:7047-7060. [PMID: 35717334 DOI: 10.3168/jds.2022-22135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 04/22/2022] [Indexed: 11/19/2022]
Abstract
Wildfires are particularly prevalent in the Western United States, home to more than 2 million dairy cows that produce more than 25% of the nation's milk. Wildfires emit fine particulate matter (PM2.5) in smoke, which is a known air toxin and is thought to contribute to morbidity in humans by inducing inflammation. The physiological responses of dairy cows to wildfire PM2.5 are unknown. Herein we assessed the immune, metabolic, and production responses of lactating Holstein cows to wildfire PM2.5 inhalation. Cows (primiparous, n = 7; multiparous, n = 6) were monitored across the wildfire season from July to September 2020. Cows were housed in freestall pens and thus were exposed to ambient air quality. Air temperature, relative humidity, and PM2.5 were obtained from a monitoring station 5.7 km from the farm. Animals were considered to be exposed to wildfire PM2.5 if daily average PM2.5 exceeded 35 µg/m3 and wildfire and wind trajectory mapping showed that the PM2.5 derived from active wildfires. Based on these conditions, cows were exposed to wildfire PM2.5 for 7 consecutive days in mid-September. Milk yield was recorded daily and milk components analysis conducted before, during, and after exposure. Blood was taken from the jugular vein before, during, and after exposure and assayed for hematology, blood chemistry, and blood metabolites. Statistical analysis was conducted using mixed models including PM2.5, temperature-humidity index (THI), parity (primiparous or multiparous), and their interactions as fixed effects and cow as a random effect. Separate models included lags up to 7 d to identify delayed and persistent effects from wildfire PM2.5 exposure. Exposure to elevated PM2.5 from wildfire smoke resulted in lower milk yield during exposure and for 7 d after last exposure and higher blood CO2 concentration, which persisted for 1 d following exposure. We observed a positive PM2.5 by THI interaction for eosinophil and basophil count and a negative PM2.5 by THI interaction for red blood cell count and hemoglobin concentration after a 3-d lag. Neutrophil count was also lower with a combination of higher THI and PM2.5. We found no discernable effect of PM2.5 on haptoglobin concentration. Effects of PM2.5 and THI on metabolism were contingent on day of exposure. On lag d 0, blood urea nitrogen (BUN) was reduced with higher combined THI and PM2.5, but on subsequent lag days, THI and PM2.5 had a positive interaction on BUN. Conversely, THI and PM2.5 had a positive interacting effect on nonesterified fatty acids (NEFA) on lag d 0 but subsequently caused a reduction in circulating NEFA concentration. Our results suggest that exposure to high wildfire-derived PM2.5, alone or in concert with elevated THI, alters systemic metabolism, milk production, and the innate immune system.
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Affiliation(s)
- Ashly Anderson
- Department of Animal, Veterinary and Food Sciences, University of Idaho, Moscow 83844
| | - Pedram Rezamand
- Department of Animal, Veterinary and Food Sciences, University of Idaho, Moscow 83844
| | - Amy L Skibiel
- Department of Animal, Veterinary and Food Sciences, University of Idaho, Moscow 83844.
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7
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Guo C, Lv S, Liu Y, Li Y. Biomarkers for the adverse effects on respiratory system health associated with atmospheric particulate matter exposure. JOURNAL OF HAZARDOUS MATERIALS 2022; 421:126760. [PMID: 34396970 DOI: 10.1016/j.jhazmat.2021.126760] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/17/2021] [Accepted: 07/25/2021] [Indexed: 06/13/2023]
Abstract
Large amounts of epidemiological evidence have confirmed the atmospheric particulate matter (PM2.5) exposure was positively correlated with the morbidity and mortality of respiratory diseases. Nevertheless, its pathogenesis remains incompletely understood, probably resulting from the activation of oxidative stress, inflammation, altered genetic and epigenetic modifications in the lung upon PM2.5 exposure. Currently, biomarker investigations have been widely used in epidemiological and toxicological studies, which may help in understanding the biologic mechanisms underlying PM2.5-elicited adverse health outcomes. Here, the emerging biomarkers to indicate PM2.5-respiratory system interactions were summarized, primarily related to oxidative stress (ROS, MDA, GSH, etc.), inflammation (Interleukins, FENO, CC16, etc.), DNA damage (8-OHdG, γH2AX, OGG1) and also epigenetic modulation (DNA methylation, histone modification, microRNAs). The identified biomarkers shed light on PM2.5-elicited inflammation, fibrogenesis and carcinogenesis, thus may favor more precise interventions in public health. It is worth noting that some inconsistent findings may possibly relate to the inter-study differentials in the airborne PM2.5 sample, exposure mode and targeted subjects, as well as methodological issues. Further research, particularly by -omics technique to identify novel, specific biomarkers, is warranted to illuminate the causal relationship between PM2.5 pollution and deleterious lung outcomes.
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Affiliation(s)
- Caixia Guo
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Songqing Lv
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Yufan Liu
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Yanbo Li
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China.
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8
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Tan PX, Thiyagarasaiyar K, Tan CY, Jeon YJ, Nadzir MSM, Wu YJ, Low LE, Atanasov AG, Ming LC, Liew KB, Goh BH, Yow YY. Algae-Derived Anti-Inflammatory Compounds against Particulate Matters-Induced Respiratory Diseases: A Systematic Review. Mar Drugs 2021; 19:317. [PMID: 34070821 PMCID: PMC8227865 DOI: 10.3390/md19060317] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 02/06/2023] Open
Abstract
Air pollution has recently become a subject of increasing concern in many parts of the world. The World Health Organization (WHO) estimated that nearly 4.2 million early deaths are due to exposure to fine particles in polluted air, which causes multiple respiratory diseases. Algae, as a natural product, can be an alternative treatment due to potential biofunctional properties and advantages. This systematic review aims to summarize and evaluate the evidence of metabolites derived from algae as potential anti-inflammatory agents against respiratory disorders induced by atmospheric particulate matter (PM). Databases such as Scopus, Web of Science, and PubMed were systematically searched for relevant published full articles from 2016 to 2020. The main key search terms were limited to "algae", "anti-inflammation", and "air pollutant". The search activity resulted in the retrieval of a total of 36 publications. Nine publications are eligible for inclusion in this systematic review. A total of four brown algae (Ecklonia cava, Ishige okamurae, Sargassum binderi and Sargassum horneri) with phytosterol, polysaccharides and polyphenols were reported in the nine studies. The review sheds light on the pathways of particulate matter travelling into respiratory systems and causing inflammation, and on the mechanisms of actions of algae in inhibiting inflammation. Limitations and future directions are also discussed. More research is needed to investigate the potential of algae as anti-inflammatory agents against PM in in vivo and in vitro experimental models, as well as clinically.
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Affiliation(s)
- Pek Xyen Tan
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya 47500, Malaysia; (P.X.T.); (K.T.); (C.-Y.T.)
| | - Krishnapriya Thiyagarasaiyar
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya 47500, Malaysia; (P.X.T.); (K.T.); (C.-Y.T.)
| | - Cheng-Yau Tan
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya 47500, Malaysia; (P.X.T.); (K.T.); (C.-Y.T.)
| | - You-Jin Jeon
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea;
| | - Mohd Shahrul Mohd Nadzir
- Department of Earth Sciences and Environmental, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia;
| | - Yong-Jiang Wu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; (Y.-J.W.); (L.-E.L.)
| | - Liang-Ee Low
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; (Y.-J.W.); (L.-E.L.)
- Biofunctional Molecule Exploratory (BMEX) Research Group, School of Pharmacy, Monash University Malaysia, Subang Jaya 47500, Malaysia
| | - Atanas G. Atanasov
- Ludwig Boltzmann Institute of Digital Health and Patient Safety, Medical University of Vienna, 1090 Vienna, Austria;
- Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, 05-552 Magdalenka, Poland
- Department of Pharmacognosy, University of Vienna, 1090 Vienna, Austria
| | - Long Chiau Ming
- PAP Rashidah Sa’adatul Bolkiah Institute of Health Sciences, Universiti Brunei Darussalam, Gadong BE1410, Brunei;
| | - Kai Bin Liew
- Faculty of Pharmacy, University of Cyberjaya, Cyberjaya 63000, Malaysia;
| | - Bey-Hing Goh
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China; (Y.-J.W.); (L.-E.L.)
- Biofunctional Molecule Exploratory (BMEX) Research Group, School of Pharmacy, Monash University Malaysia, Subang Jaya 47500, Malaysia
| | - Yoon-Yen Yow
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya 47500, Malaysia; (P.X.T.); (K.T.); (C.-Y.T.)
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9
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Jia H, Liu Y, Guo D, He W, Zhao L, Xia S. PM2.5-induced pulmonary inflammation via activating of the NLRP3/caspase-1 signaling pathway. ENVIRONMENTAL TOXICOLOGY 2021; 36:298-307. [PMID: 32996690 PMCID: PMC7891361 DOI: 10.1002/tox.23035] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 09/15/2020] [Accepted: 09/15/2020] [Indexed: 05/07/2023]
Abstract
Particulate matter 2.5 (PM2.5)-induced pulmonary inflammation has become a public concern in recent years. In which, the activation of the NLRP3/caspase-1 pathway was closely related to the inflammatory response of various diseases. However, the promotion effect of the NLRP3/caspase-1 pathway on PM2.5-induced pulmonary inflammation remains largely unclear. Here, our data showed that PM2.5 exposure caused lung injury in the mice by which inflammatory cell infiltration occurred in lung and alveolar structure disorder. Meanwhile, the exposure of human bronchial epithelial cells (16HBE) to PM2.5 resulted in suppressed cell viability, as well as elevated cell apoptosis. Moreover, a higher level of inflammatory cytokine and activation of the NLRP3/caspase-1 pathway in PM2.5-induced inflammation mice models and 16HBE cells. Mechanistically, pretreatment with MCC950, a NLRP3/caspase-1 pathway inhibitor, prevented PM2.5-induced lung injury, inflammatory response, and the number of inflammatory cells in BALFs, as well as promoted cell viability and decreased inflammatory cytokine secretion. Collectively, our findings indicated that the NLRP3/caspase-1 pathway serves a vital role in the pathological changes of pulmonary inflammation caused by PM2.5 exposure. MCC950 was expected to be the therapeutic target of PM2.5 inhalation mediated inflammatory diseases.
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Affiliation(s)
- Hui Jia
- Department of Respiratory and Critical Care MedicineCentral Hospital Affiliated to Shenyang Medical CollegeShenyangChina
| | - Yang Liu
- Department of Respiratory and Critical Care MedicineCentral Hospital Affiliated to Shenyang Medical CollegeShenyangChina
| | - Dan Guo
- Department of Respiratory and Critical Care MedicineCentral Hospital Affiliated to Shenyang Medical CollegeShenyangChina
| | - Wei He
- Department of Respiratory and Critical Care MedicineCentral Hospital Affiliated to Shenyang Medical CollegeShenyangChina
| | - Long Zhao
- Department of Respiratory and Critical Care MedicineCentral Hospital Affiliated to Shenyang Medical CollegeShenyangChina
| | - Shuyue Xia
- Department of Respiratory and Critical Care MedicineCentral Hospital Affiliated to Shenyang Medical CollegeShenyangChina
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10
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Sharma J, Parsai K, Raghuwanshi P, Ali SA, Tiwari V, Bhargava A, Mishra PK. Emerging role of mitochondria in airborne particulate matter-induced immunotoxicity. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 270:116242. [PMID: 33321436 DOI: 10.1016/j.envpol.2020.116242] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/23/2020] [Accepted: 12/06/2020] [Indexed: 05/05/2023]
Abstract
The immune system is one of the primary targets of airborne particulate matter. Recent evidence suggests that mitochondria lie at the center of particulate matter-induced immunotoxicity. Particulate matter can directly interact with mitochondrial components (proteins, lipids, and nucleic acids) and impairs the vital mitochondrial processes including redox mechanisms, fusion-fission, autophagy, and metabolic pathways. These disturbances impede different mitochondrial functions including ATP production, which acts as an important platform to regulate immunity and inflammatory responses. Moreover, the mitochondrial DNA released into the cytosol or in the extracellular milieu acts as a danger-associated molecular pattern and triggers the signaling pathways, involving cGAS-STING, TLR9, and NLRP3. In the present review, we discuss the emerging role of mitochondria in airborne particulate matter-induced immunotoxicity and its myriad biological consequences in health and disease.
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Affiliation(s)
- Jahnavi Sharma
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Kamakshi Parsai
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Pragati Raghuwanshi
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Sophiya Anjum Ali
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Vineeta Tiwari
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Arpit Bhargava
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Pradyumna Kumar Mishra
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India.
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11
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Zheng XY, Tong L, Shen D, Yu JE, Hu ZQ, Li YJ, Zhang LJ, Xue EF, Tang HF. Airborne Bacteria Enriched PM2.5 Enhances the Inflammation in an Allergic Adolescent Mouse Model Induced by Ovalbumin. Inflammation 2020; 43:32-43. [PMID: 31894450 DOI: 10.1007/s10753-019-01071-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Air pollution events frequently occur in China during the winter. Most investigations of pollution studies have focused on the physical and chemical properties of PM2.5. Many of these studies have indicated that PM2.5 exacerbates asthma or eosinophil inflammation. However, few studies have evaluated the relationship between bacterial loads in PM2.5, and especially pathogenic bacteria and childhood asthma. Airborne PM2.5 samples from heavily polluted air were collected in Hangzhou, China between December 2014 and January 2015. PM2.5 and ovalbumin (OVA) were intratracheally administered twice in 4-week intervals to induce the allergic pulmonary inflammation in adolescent C57/BL6 mice. PM2.5 exposure caused neutrophilic alveolitis and bronchitis. In the presence of OVA, the levels of the Th2 cytokines IL-4, IL-12, and IL-17 were significantly increased in bronchoalveolar lavage fluids (BALF) after PM2.5 exposure, while eosinophil infiltration and mucin secretion were also induced. In addition to adjuvant effects on OVA-induced allergic inflammation, PM2.5 exposure also led to the maturation of dendritic cells. These results suggest that PM2.5 exposure may aggravate lung eosinophilia and that PM2.5-bound microbial can exacerbate allergic and inflammatory lung diseases.
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Affiliation(s)
- Xu-Yang Zheng
- Department of Pediatric, Affiliated Hangzhou First People's Hospital, Zhejiang University school of Medicine, 261 Huansha Road, Hangzhou, 310001, China.
| | - Lin Tong
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China
| | - Dan Shen
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China
| | - Jia-En Yu
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China
| | - Zheng-Qiang Hu
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China
| | - Ya-Jun Li
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China
| | - Le-Jun Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China
| | - En-Fu Xue
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China
| | - Hui-Fang Tang
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China.
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12
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Sanjeewa KKA, Jayawardena TU, Kim SY, Lee HG, Je JG, Jee Y, Jeon YJ. Sargassum horneri (Turner) inhibit urban particulate matter-induced inflammation in MH-S lung macrophages via blocking TLRs mediated NF-κB and MAPK activation. JOURNAL OF ETHNOPHARMACOLOGY 2020; 249:112363. [PMID: 31678416 DOI: 10.1016/j.jep.2019.112363] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 10/15/2019] [Accepted: 10/26/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sargassum horneri is a nutrient rich edible brown seaweed with numerous biological properties found in shallow coastal areas of Korean peninsula. S. horneri traditionally used as a medicinal ingredient to treat several disease conditions such as hyperlipidemia, hypertension, heart disease, and inflammatory diseases (furuncle). However, to utilize S. horneri as an active ingredient for functional foods and human health applications requires to conform the bioactive properties and underlying mechanisms of those activities. AIM OF THE STUDY Here, we investigated anti-inflammatory mechanisms of commercial grade 70% ethanol extract separated from S. horneri (SHE) on inflammatory response in particulate matter (PM)-induced MH-S lung macrophages; where PM in breathable air one of the major health concern in Korea. MATERIALS AND METHODS We compared the anti-inflammatory effects of SHE on the activity of toll-like receptors (TLR) activation, NF-κB, MAPKs, and pro-inflammatory cytokine secretion in MH-S lung macrophages exposed to PM as a lung inflammation model. RESULTS According to the results, PM-stimulation, induced the levels of NO, PGE2, TNF-α, IL-1β, IL-6, iNOS, and COX2 (P < 0.05) in MH-S macrophages. In addition, phosphorylation levels of NF-κB and MAPKs were also increased with the PM stimulation through the upregulated expression of TLR. However, SHE treatment significantly repressed the secretions of inflammatory cytokines and reduced protein expression such as PGE2, TNF-α, IL-6, IL-1β, NF-κB, and MAPKs from PM-activated macrophages. Specifically, SHE inhibited the upregulated mRNA expression levels of TLR2, TLR3, TLR4, and TLR7 in PM-induced MH-S cells; known biomarkers of downstream activation of NF-κB and MAPKs. CONCLUSION These results suggested that SHE is a potential inhibitor of PM-induced inflammatory responses in lung macrophages. Thus, SHE could inhibit PM-induced chronic inflammation in lungs via blocking TLR/NF-κB/MAPKs signal transduction. Therefore, it was concluded that SHE may be a useful substance to develop as functional product to reduce inflammation against PM-induced inflammation.
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Affiliation(s)
- K K Asanka Sanjeewa
- Department of Marine Life Science, School of Marine Biomedical Sciences, Jeju National University, Jeju, 63243, South Korea.
| | - Thilina U Jayawardena
- Department of Marine Life Science, School of Marine Biomedical Sciences, Jeju National University, Jeju, 63243, South Korea.
| | - Seo-Young Kim
- Department of Marine Life Science, School of Marine Biomedical Sciences, Jeju National University, Jeju, 63243, South Korea; Korea Basic Science Institute, Gib-Hyun-Kwan, 1 Kangwondaehak-gil, Chuncheon-si, Gangwon-do, 24341, South Korea.
| | - Hyo Geun Lee
- Department of Marine Life Science, School of Marine Biomedical Sciences, Jeju National University, Jeju, 63243, South Korea.
| | - Jun-Geon Je
- Department of Marine Life Science, School of Marine Biomedical Sciences, Jeju National University, Jeju, 63243, South Korea.
| | - Youngheun Jee
- Department of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju, 63243, South Korea.
| | - You-Jin Jeon
- Department of Marine Life Science, School of Marine Biomedical Sciences, Jeju National University, Jeju, 63243, South Korea; Marine Science Institute, Jeju National University, Jeju Self-Governing Province, 63333, South Korea.
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13
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Dai MY, Chen FF, Wang Y, Wang MZ, Lv YX, Liu RY. Particulate matters induce acute exacerbation of allergic airway inflammation via the TLR2/NF-κB/NLRP3 signaling pathway. Toxicol Lett 2019; 321:146-154. [PMID: 31836503 DOI: 10.1016/j.toxlet.2019.12.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 12/07/2019] [Accepted: 12/10/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND Exposure to particulate matters (PMs) can lead to an acute exacerbation of allergic airway diseases, increasing the severity of symptoms and mortality. However, little is known about the underlying molecular mechanism. This study aimed to investigate the effects of PMs on acute exacerbation of allergic airway inflammation and seek potential therapeutic targets. METHODS Non-allergic control and ovalbumin (OVA)-allergic wide-type (WT) and Toll-like receptor 2 knockout (Tlr2-/-) mice were exposed to 100 μg of PM (diameter 5.85 μm) or saline by the oropharyngeal instillation. The responses were examined three days after exposure. In the RAW264.7 macrophage cell line, Tlr2 was knocked down by small-interfering RNA or the NF-κB inhibitor JSH-23 was used, and then the cells were stimulated with PMs for 12 h before comparison of the inflammatory responses. RESULTS PM exposure led to increased inflammatory cell recruitment and airway intensity of PAS + staining in OVA-allergic WT mice, accompanied with an accumulation of inflammatory cells and elevated inflammatory cytokines, such as IL-6 and IL-18, in the bronchoalveolar lavage fluid (BALF). Furthermore, the protein levels of TLR2 and the NLRP3 inflammasome were elevated concomitantly with the airway inflammation post-OVA/PMs challenge. Tlr2 deficiency effectively inhibited the airway inflammation, including pulmonary inflammatory cell recruitment, mucus secretion, serum OVA-specific immunoglobulin E (IgE), and BALF inflammatory cytokine production. Additionally, the P-induced NLRP3 activation in the RAW 264.7 cell line was diminished by the knockdown of Tlr2 or JSH-23 treatment in vitro. CONCLUSION Our results indicated that PMs exacerbate the allergic airway inflammation mediated by the TLR2/ NF-κB/NLRP3 signaling pathway. Inhibition of NF-κB seems to be a possible treatment.
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Affiliation(s)
- Meng-Yuan Dai
- Department of Respiratory and Critical Care, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China; Department of Geriatric Respiratory and Critical Care, Provincial Key Laboratory of Molecular Medicine for Geriatric Disease, Anhui Geriatric Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Fang-Fang Chen
- Department of Geriatric Respiratory and Critical Care, Provincial Key Laboratory of Molecular Medicine for Geriatric Disease, Anhui Geriatric Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Yong Wang
- Department of Respiratory and Critical Care, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Mu-Zi Wang
- Department of Geriatric Respiratory and Critical Care, Provincial Key Laboratory of Molecular Medicine for Geriatric Disease, Anhui Geriatric Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Yun-Xiang Lv
- Department of Geriatric Respiratory and Critical Care, Provincial Key Laboratory of Molecular Medicine for Geriatric Disease, Anhui Geriatric Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Rong-Yu Liu
- Department of Respiratory and Critical Care, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China; Department of Geriatric Respiratory and Critical Care, Provincial Key Laboratory of Molecular Medicine for Geriatric Disease, Anhui Geriatric Institute, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
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14
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Zhang S, Zhang W, Zeng X, Zhao W, Wang Z, Dong X, Jia Y, Shen J, Chen R, Lin X. Inhibition of Rac1 activity alleviates PM2.5-induced pulmonary inflammation via the AKT signaling pathway. Toxicol Lett 2019; 310:61-69. [DOI: 10.1016/j.toxlet.2019.04.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/05/2019] [Accepted: 04/11/2019] [Indexed: 01/09/2023]
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15
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Wang P, Liu H, Fan X, Zhu Z, Zhu Y. Effect of San'ao decoction on aggravated asthma mice model induced by PM2.5 and TRPA1/TRPV1 expressions. JOURNAL OF ETHNOPHARMACOLOGY 2019; 236:82-90. [PMID: 30836174 DOI: 10.1016/j.jep.2019.02.043] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 02/02/2019] [Accepted: 02/25/2019] [Indexed: 06/09/2023]
Abstract
OBJECTIVE San'ao decoction (SAD), a traditional Chinese prescription, is well-known in asthma treatment. In the current study, the protective role of SAD and its mechanism in aggravated asthma mice model via regulation of TRP channel were evaluated and explored. METHODS UPLC-QTOF-MS was used for analyzing the chemicals in SAD. The major chemical components in SAD were separated and detected under an optimized chromatographic and MS condition. 75 BALB/c mice were randomly divided into five groups: normal group, model group, dexamethasone group (0.75 mg kg-1), SAD-high dose group (1.8 g kg-1) and SAD-low dose group (0.9 g kg-1). A 42 days aggravated asthmatic model was established in mice induced by ovalbumin (OVA) plus PM2.5 (1.6 mg kg-1). After treated with corresponding medicine, peripheral blood and bronchoalveolar lavage fluid (BALF) from each group were assessed, airway responsiveness was determined, histopathological changes in lungs were detected, relevant cytokines and neurokines levels were measured, TRPA1 and TRPV1 mRNA and protein expressions in lung tissues were examined as well. RESULTS 21 signal peaks of the chemicals in SAD were identified with the method of UPLC-QTOF-MS. SAD, especially SAD-high dose exerted significant effects on OVA plus PM2.5 mice model in relieving lung injury score (P < 0.05), reducing eosinophil (EOS) count in blood (P < 0.05) and inflammatory cells ratio in BALF (P < 0.05, P < 0.01), decreasing RI value (P < 0.05) while increasing Cdyn value (P < 0.05), reducing IL-13, PGD2 and NGF levels in BALF (P < 0.01), as well as down-regulating TRPA1 and TRPV1 mRNA and protein expressions in lung tissues (P < 0.05, P < 0.01). CONCLUSION SAD could improve pulmonary functions, relieve lung injury, as well as reduce IL-13, PGD2 and NGF levels of OVA plus PM2.5 aggravated asthma model in mice. The effect and mechanism of SAD might be related to the inhibition of TRPA1 and TRPV1 channels.
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Affiliation(s)
- Pengli Wang
- College of Basic Medicine, Nanjing University of Chinese Medicine, Nanjing, 210046, China
| | - Hong Liu
- College of Basic Medicine, Nanjing University of Chinese Medicine, Nanjing, 210046, China
| | - Xinsheng Fan
- College of Basic Medicine, Nanjing University of Chinese Medicine, Nanjing, 210046, China.
| | - Zhenhua Zhu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, 210046, China
| | - Yue Zhu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, 210046, China
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16
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Ya P, Xu H, Ma Y, Fang M, Yan X, Zhou J, Li F. Liver injury induced in Balb/c mice by PM2.5 exposure and its alleviation by compound essential oils. Biomed Pharmacother 2018; 105:590-598. [DOI: 10.1016/j.biopha.2018.06.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 06/01/2018] [Accepted: 06/02/2018] [Indexed: 12/16/2022] Open
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17
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Chen M, Zhou H, Xu Y, Qiu L, Hu Z, Qin X, Chen S, Zhang Y, Cao Q, Abu-Amer Y, Ying Z. From the Cover: Lung-Specific Overexpression of Constitutively Active IKK2 Induces Pulmonary and Systemic Inflammations but Not Hypothalamic Inflammation and Glucose Intolerance. Toxicol Sci 2018; 160:4-14. [PMID: 29036520 DOI: 10.1093/toxsci/kfx154] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The lung is constantly exposed to ambient pollutants such as ambient fine particulate matter (PM2.5), making it one of the most frequent locations of inflammation in the body. Given the establishment of crucial role of inflammation in the pathogenesis of cardiometabolic diseases, pulmonary inflammation is thus widely believed to be an important risk factor for cardiometabolic diseases. However, the causality between them has not yet been well established. To determine if pulmonary inflammation is sufficient to cause adverse cardiometabolic effects, SFTPC-rtTA+/-tetO-cre+/-pROSA-inhibitor κB kinase 2(IKK2)ca+/- (LungIKK2ca) and littermate SFTPC-rtTA+/-tetO-cre-/-pROSA-IKK2ca+/- wildtype (WT) mice were fed with doxycycline diet to induce constitutively active Ikk2 (Ikk2ca) overexpression in the lung and their pulmonary, systemic, adipose, and hypothalamic inflammations, vascular function, and glucose homeostasis were assessed. Feeding with doxycycline diet resulted in IKK2ca overexpression in the lungs of LungIKK2ca but not WT mice. This induction of IKK2ca was accompanied by marked pulmonary inflammation as evidenced by significant increases in bronchoalveolar lavage fluid leukocytes, pulmonary macrophage infiltration, and pulmonary mRNA expression of tumor necrosis factor α (Tnfα) and interleukin-6 (Il-6). This pulmonary inflammation due to lung-specific overexpression of IKK2ca was sufficient to increase circulating TNFα and IL-6 levels, adipose expression of Tnfα and Il-6 mRNA, aortic endothelial dysfunction, and systemic insulin resistance. Unexpectedly, no significant alteration in hypothalamic expression of Tnfα and Il-6 mRNA and glucose intolerance were observed in these mice. Pulmonary inflammation is sufficient to induce systemic inflammation, endothelial dysfunction, and insulin resistance, but not hypothalamic inflammation and glucose intolerance.
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Affiliation(s)
- Minjie Chen
- Cardiology Division, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland 21201.,Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Huifen Zhou
- Cardiology Division, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland 21201.,Department of Pathology, Hubei University of Science and Technology, Xianning, Hubei 437100, China
| | - Yanyi Xu
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Lianglin Qiu
- Cardiology Division, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland 21201.,Department of Occupational and Environmental Health, School of Public Health, Nantong University, Nantong 226019, China
| | - Ziying Hu
- Cardiology Division, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland 21201.,Department of Endocrinology, The People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), Zhengzhou, Henan 450003, China
| | - Xiaobo Qin
- Cardiology Division, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland 21201
| | - Sufang Chen
- Cardiology Division, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland 21201
| | - Yuhao Zhang
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Qi Cao
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland 21201
| | - Yousef Abu-Amer
- Orthopedics and Cell Biology & Physiology, Washington University School of Medicine, St Louis, Missouri63110
| | - Zhekang Ying
- Cardiology Division, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland 21201.,Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
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18
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Wei T, Tang M. Biological effects of airborne fine particulate matter (PM 2.5) exposure on pulmonary immune system. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2018; 60:195-201. [PMID: 29734103 DOI: 10.1016/j.etap.2018.04.004] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 04/02/2018] [Accepted: 04/03/2018] [Indexed: 05/21/2023]
Abstract
Airborne fine particulate matter (PM2.5) attracts more and more attention due to its environmental effects. The immune system appears to be a most sensitive target organ for the environmental pollutants. Inhaled PM2.5 can deposit in different compartments in the respiratory tract and interact with epithelial cells and resident immune cells. Exposed to PM2.5 can induce local or systematic inflammatory responses. This review focus on the effects of respiratory tract exposed to PM2.5. Firstly, we introduced the major emission sources, basic characteristics of PM2.5 and discussed its immunoadjuvant potential. Secondly, we elaborated the immune cells in the respiratory tract and the deposition of PM2.5 regarding the structural characteristics of the respiratory tract. Furthermore, we summarized the in vivo/vitro studies that revealed the immunotoxic effects of PM2.5 exposure to pulmonary cellular effectors and explored the contribution of PM2.5 exposure to the Th1/Th2 balance.
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Affiliation(s)
- Tingting Wei
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, PR China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, PR China
| | - Meng Tang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, PR China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, PR China.
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19
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Ouyang Y, Xu Z, Fan E, Li Y, Miyake K, Xu X, Zhang L. Changes in gene expression in chronic allergy mouse model exposed to natural environmental PM2.5-rich ambient air pollution. Sci Rep 2018; 8:6326. [PMID: 29679058 PMCID: PMC5910422 DOI: 10.1038/s41598-018-24831-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 04/11/2018] [Indexed: 02/07/2023] Open
Abstract
Particulate matter (PM) air pollution has been associated with an increase in the incidence of chronic allergic diseases; however, the mechanisms underlying the effect of exposure to natural ambient air pollution in chronic allergic diseases have not been fully elucidated. In the present study, we aimed to investigate the cellular responses induced by exposure to natural ambient air pollution, employing a mouse model of chronic allergy. The results indicated that exposure to ambient air pollution significantly increased the number of eosinophils in the nasal mucosa. The modulation of gene expression profile identified a set of regulated genes, and the Triggering Receptor Expressed on Myeloid cells1(TREM1) signaling canonical pathway was increased after exposure to ambient air pollution. In vitro, PM2.5 increased Nucleotide-binding oligomerization domain-containing protein 1 (Nod1) and nuclear factor (NF)-κB signaling pathway activation in A549 and HEK293 cell cultures. These results suggest a novel mechanism by which, PM2.5 in ambient air pollution may stimulate the innate immune system through the PM2.5-Nod1-NF-κB axis in chronic allergic disease.
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Affiliation(s)
- Yuhui Ouyang
- Department of Otolaryngology Head and Neck Surgery and department of Allergy, Beijing TongRen Hospital, Affiliated to the Capital University of Medical Science, Beijing, 100730, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, 100005, China
| | - Zhaojun Xu
- Department of Environmental Medicine, Quanzhou Medical College, Quanzhou, Fujian, 362011, China.,Department of Biochemistry, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, 409-3898, Japan
| | - Erzhong Fan
- Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, 100005, China
| | - Ying Li
- Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, 100005, China
| | - Kunio Miyake
- Department of Health Sciences, Graduate School of Interdisciplinary Research, University of Yamanashi, Yamanashi, 409-3898, Japan
| | - Xianyan Xu
- Department of Environmental Medicine, Quanzhou Medical College, Quanzhou, Fujian, 362011, China
| | - Luo Zhang
- Department of Otolaryngology Head and Neck Surgery and department of Allergy, Beijing TongRen Hospital, Affiliated to the Capital University of Medical Science, Beijing, 100730, China. .,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, 100005, China.
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20
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Zhao R, Guo Z, Zhang R, Deng C, Xu J, Dong W, Hong Z, Yu H, Situ H, Liu C, Zhuang G. Nasal epithelial barrier disruption by particulate matter ≤2.5 μm via tight junction protein degradation. J Appl Toxicol 2017; 38:678-687. [PMID: 29235125 DOI: 10.1002/jat.3573] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 11/10/2017] [Accepted: 11/11/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Renwu Zhao
- Department of Otolaryngology; Huadong Hospital, Fudan University; Shanghai 200040 China
| | - Zhiqiang Guo
- Department of Otolaryngology; Huadong Hospital, Fudan University; Shanghai 200040 China
| | - Ruxin Zhang
- Department of Otolaryngology; Huadong Hospital, Fudan University; Shanghai 200040 China
| | - Congrui Deng
- Center for Atmospheric Chemistry Study, Department of Environmental Science and Engineering; Fudan University; Shanghai 200433 China
| | - Jian Xu
- Center for Atmospheric Chemistry Study, Department of Environmental Science and Engineering; Fudan University; Shanghai 200433 China
| | - Weiyang Dong
- Center for Atmospheric Chemistry Study, Department of Environmental Science and Engineering; Fudan University; Shanghai 200433 China
| | - Zhicong Hong
- Department of Otolaryngology; Huadong Hospital, Fudan University; Shanghai 200040 China
| | - Hongzhi Yu
- Department of Otolaryngology; Huadong Hospital, Fudan University; Shanghai 200040 China
| | - Huiru Situ
- Department of Otolaryngology; Huadong Hospital, Fudan University; Shanghai 200040 China
| | - Chunhui Liu
- Department of Otolaryngology; Huadong Hospital, Fudan University; Shanghai 200040 China
| | - Guoshun Zhuang
- Center for Atmospheric Chemistry Study, Department of Environmental Science and Engineering; Fudan University; Shanghai 200433 China
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He C, Song Y, Ichinose T, He M, Morita K, Wang D, Kanazawa T, Yoshida Y. Lipopolysaccharide levels adherent to PM2.5 play an important role in particulate matter induced-immunosuppressive effects in mouse splenocytes. J Appl Toxicol 2017; 38:471-479. [DOI: 10.1002/jat.3554] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 09/14/2017] [Accepted: 09/27/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Cuiying He
- Department of Immunology and Parasitology, School of Medicine; University of Occupational and Environmental Health; Japan, 1-1 Iseigaoka Yahatanishi-ku Kitakyushu 807-8555 Japan
| | - Yuan Song
- Department of Immunology and Parasitology, School of Medicine; University of Occupational and Environmental Health; Japan, 1-1 Iseigaoka Yahatanishi-ku Kitakyushu 807-8555 Japan
- Department of Clinical Laboratory; the Fourth Hospital of Hebei Medical University; No. 169 Tian Shan Street Shijiazhuang 050035 China
| | - Takamichi Ichinose
- Department of Health Sciences; Oita University of Nursing and Health Sciences; 2944-9 Notsuharu Oita 870-1201 Japan
| | - Miao He
- Department of Health Sciences; Oita University of Nursing and Health Sciences; 2944-9 Notsuharu Oita 870-1201 Japan
- Department of Environmental Health, School of Public Health; China Medical University; Shenyang 110122 China
| | - Kentaro Morita
- Department of Immunology and Parasitology, School of Medicine; University of Occupational and Environmental Health; Japan, 1-1 Iseigaoka Yahatanishi-ku Kitakyushu 807-8555 Japan
| | - Duo Wang
- Department of Immunology and Parasitology, School of Medicine; University of Occupational and Environmental Health; Japan, 1-1 Iseigaoka Yahatanishi-ku Kitakyushu 807-8555 Japan
| | - Tamotsu Kanazawa
- Department of Immunology and Parasitology, School of Medicine; University of Occupational and Environmental Health; Japan, 1-1 Iseigaoka Yahatanishi-ku Kitakyushu 807-8555 Japan
| | - Yasuhiro Yoshida
- Department of Immunology and Parasitology, School of Medicine; University of Occupational and Environmental Health; Japan, 1-1 Iseigaoka Yahatanishi-ku Kitakyushu 807-8555 Japan
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22
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He M, Ichinose T, Yoshida Y, Arashidani K, Yoshida S, Takano H, Sun G, Shibamoto T. Urban PM2.5 exacerbates allergic inflammation in the murine lung via a TLR2/TLR4/MyD88-signaling pathway. Sci Rep 2017; 7:11027. [PMID: 28887522 PMCID: PMC5591243 DOI: 10.1038/s41598-017-11471-y] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 08/25/2017] [Indexed: 12/22/2022] Open
Abstract
Nevertheless its mechanism has not been well explained yet, PM2.5 is recognized to exacerbate asthma. In the present study, the roles of toll-like receptor (TLR) 2, TLR4 and MyD88, in exacerbation of allergen-induced lung eosinophilia caused by urban PM2.5 was investigated. TLR2-, TLR4-, MyD88-deficient and WT BALB/c mice were intratracheally challenged with PM2.5 +/− ovalbumin (OVA) four times at 2-week intervals. PM2.5 increased neutrophil numbers and KC in bronchoalveolar lavage fluid and caused slight peribronchiolar inflammation in WT mice. However, these changes were attenuated, but not completely suppressed in gene-deficient mice, especially in MyD88−/− mice. In WT mice, PM2.5 + OVA exacerbated OVA-related lung eosinophilia. This exacerbation includes increase of IL-5, IL-13, eotaxin and MCP-3; infiltration of eosinophils into the airway submucosa; proliferation of goblet cells in the airway epithelium; and the production of antigen-specific IgE and IgG1 in serum. All these effects were stronger in TLR2−/− mice than in TLR4−/− mice. In MyD88−/− mice, this pro-inflammatory mediator-inducing ability was considerably weak and lung pathology was negligible. These results suggest that urban PM2.5 may exacerbate allergic inflammation in the murine lung via a TLR2/TLR4/MyD88-signaling pathway. PM2.5-bound trace microbial elements, such as lipopolysaccharide may be a strong candidate for exacerbation of murine lung eosinophilia.
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Affiliation(s)
- Miao He
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang, 110122, China.
| | - Takamichi Ichinose
- Department of Health Sciences, Oita University of Nursing and Health Sciences, Oita, 870-1201, Japan.
| | - Yasuhiro Yoshida
- Department of Immunology and Parasitology, School of Medicine, University of Occupational and Environmental Health, Fukuoka, 807-8555, Japan
| | - Keiichi Arashidani
- Department of Immunology and Parasitology, School of Medicine, University of Occupational and Environmental Health, Fukuoka, 807-8555, Japan
| | - Seiichi Yoshida
- Department of Health Sciences, Oita University of Nursing and Health Sciences, Oita, 870-1201, Japan
| | - Hirohisa Takano
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, 615-8530, Japan
| | - Guifan Sun
- Department of Environmental Health, School of Public Health, China Medical University, Shenyang, 110122, China
| | - Takayuki Shibamoto
- Department of Environmental Toxicology, University of California, Davis, California, 95616, USA
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23
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Concentration-dependent effects of PM 2.5 mass on expressions of adhesion molecules and inflammatory cytokines in nasal mucosa of rats with allergic rhinitis. Eur Arch Otorhinolaryngol 2017; 274:3221-3229. [PMID: 28577221 DOI: 10.1007/s00405-017-4606-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 05/09/2017] [Indexed: 11/27/2022]
Abstract
Allergic rhinitis (AR) represents a clinical health issue affecting approximately 500 million people worldwide. This study aimed to explore the effects of airborne fine particulate matter (PM2.5) on the nasal mucosa of rats with AR. Seventy-five healthy male SD rats were included and randomly divided into the normal, model, low-concentration, middle-concentration, and high-concentration groups (15 rats each group). AR rat models were established using sensitized mixture and were stimulated using different concentrations of PM2.5. Sneeze and nose-scratching events were observed. Automatic hematology analyzer was utilized to count white blood cells (WBCs). The serum IgE, ICAM-1, and VCAM-1 expressions, eosinophil (EOS) infiltration, and IFN-γ, IL-4, IL-5, IL-33, and TSLP expressions were detected by ELISA, HE staining, and qRT-PCR. Greater numbers of WBCs, increased IgE level, elevated levels of ICAM-1, VCAM-1, EOS, IFN-γ, IL-4, IL-5, IL-33, and TSLP in the model, low-concentration, middle-concentration, and high-concentration groups than the normal group. The same trend also exhibited in rats of the middle-concentration and high-concentration groups than that of the model and low-concentration groups. Comparisons between normal rats and AR rats indicated that AR rats exhibit remarkably higher cytokine expression levels of IFN-γ, IL-4, IL-5, TSLP, and IL-33. The study revealed that as stimulation is triggered by PM2.5, AR rats result in increased levels of adhesion molecules and inflammatory cytokine expressions in a concentration-dependent manner. Analyses of PM2.5 as well as, its effects on AR are crucial in the continued drive for both prevention and management of the disease.
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He M, Ichinose T, Yoshida S, Ito T, He C, Yoshida Y, Arashidani K, Takano H, Sun G, Shibamoto T. PM2.5-induced lung inflammation in mice: Differences of inflammatory response in macrophages and type II alveolar cells. J Appl Toxicol 2017; 37:1203-1218. [DOI: 10.1002/jat.3482] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 03/13/2017] [Accepted: 03/30/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Miao He
- Department of Environmental Health, School of Public Health; China Medical University; Shenyang 110122 China
- Department of Health Sciences; Oita University of Nursing and Health Sciences; Oita 870-1201 Japan
| | - Takamichi Ichinose
- Department of Health Sciences; Oita University of Nursing and Health Sciences; Oita 870-1201 Japan
| | - Seiichi Yoshida
- Department of Health Sciences; Oita University of Nursing and Health Sciences; Oita 870-1201 Japan
| | - Tomohiro Ito
- Center for Health and Environmental Risk Research; National Institute for Environmental Studies; 16-2 Onogawa, Tsukuba Ibaraki 305-8506 Japan
| | - Cuiying He
- Department of Immunology and Parasitology, School of Medicine; University of Occupational and Environmental Health; Fukuoka 807-8555 Japan
| | - Yasuhiro Yoshida
- Department of Immunology and Parasitology, School of Medicine; University of Occupational and Environmental Health; Fukuoka 807-8555 Japan
| | - Keiichi Arashidani
- Department of Immunology and Parasitology, School of Medicine; University of Occupational and Environmental Health; Fukuoka 807-8555 Japan
| | - Hirohisa Takano
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering; Kyoto University; Kyoto 615-8530 Japan
| | - Guifan Sun
- Department of Environmental Health, School of Public Health; China Medical University; Shenyang 110122 China
| | - Takayuki Shibamoto
- Department of Environmental Toxicology; University of California; Davis CA 95616 USA
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Wang H, Song L, Ju W, Wang X, Dong L, Zhang Y, Ya P, Yang C, Li F. The acute airway inflammation induced by PM 2.5 exposure and the treatment of essential oils in Balb/c mice. Sci Rep 2017; 7:44256. [PMID: 28276511 PMCID: PMC5343586 DOI: 10.1038/srep44256] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 02/03/2017] [Indexed: 01/17/2023] Open
Abstract
PM2.5 is the main particulate air pollutant whose aerodynamic diameter is less than 2.5 micron. The inflammation of various respiratory diseases are associated with PM2.5 inhalation. Pro-inflammatory cytokine IL-1β generated from effected cells usually plays a crucial role in many kinds of lung inflammatory reactions. The exacerbation of Th immune responses are identified in some PM2.5 related diseases. To elucidate the underlying mechanism of PM2.5-induced acute lung inflammation, we exposed Balb/c mice to PM2.5 intratracheally and established a mice model. Acute lung inflammation and increased IL-1β expression was observed after PM2.5 instillation. Regulatory factors of IL-1β (TLR4/MyD88 signaling pathway and NLRP3 inflammasome) participated in this lung inflammatory response as well. Treatment with compound essential oils (CEOs) substantially attenuated PM2.5-induced acute lung inflammation. The decreased IL-1β and Th immune responses after CEOs treatment were significant. PM2.5 may increase the secretion of IL-1β through TLR4/MyD88 and NLRP3 pathway resulting in murine airway inflammation. CEOs could attenuate the lung inflammation by reducing IL-1β and Th immune responses in this model. This study describes a potentially important mechanism of PM2.5-induced acute lung inflammation and that may bring about novel therapies for the inflammatory diseases associated with PM2.5 inhalation.
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Affiliation(s)
- Hetong Wang
- Dept of Chemistry, Dalian Medical University, Dalian 116044, Liaoning Province, People’s Republic of China
| | - Laiyu Song
- Dept of Immunological and Microbiological Laboratory, Dalian Medical University, Dalian 116044, Liaoning Province, People’s Republic of China
| | - Wenhui Ju
- Atmospheric Environment Research Institute, China Research Academy of Environmental Sciences, Beijing 100012, People’s Republic of China
| | - Xuguang Wang
- Environmental Monitoring Station of Langfan, Langfang Environmental Protection Bureau, Langfang 065000, Hebei Province, People’s Republic of China
| | - Lu Dong
- Dept of Chemistry, Dalian Medical University, Dalian 116044, Liaoning Province, People’s Republic of China
| | - Yining Zhang
- Dept of Chemistry, Dalian Medical University, Dalian 116044, Liaoning Province, People’s Republic of China
| | - Ping Ya
- Dept of Chemistry, Dalian Medical University, Dalian 116044, Liaoning Province, People’s Republic of China
| | - Chun Yang
- Dept of Nuclear Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, LiaoNing Province, People’s Republic of China
| | - Fasheng Li
- Dept of Chemistry, Dalian Medical University, Dalian 116044, Liaoning Province, People’s Republic of China
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26
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Liu H, Fan X, Wang N, Zhang Y, Yu J. Exacerbating effects of PM2.5 in OVA-sensitized and challenged mice and the expression of TRPA1 and TRPV1 proteins in lungs. J Asthma 2017; 54:807-817. [PMID: 28102732 DOI: 10.1080/02770903.2016.1266495] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
OBJECTIVE To investigate the effects of particulate matter ≤ 2.5 microns (PM2.5) on asthma-related phenotypes and on lung expression of TRPA1 and TRPV1 proteins in a mouse model of asthma. METHODS Female BALB/c mice were utilized to establish 28- and 42-day asthma models. Mice were sensitized with ovalbumin (OVA) and challenged with OVA, OVA plus normal saline (NS), or OVA plus PM2.5 at two doses, 1.6 or 8.0 mg kg-1. PM2.5 was instilled intratracheally without anesthesia. After the final OVA challenge was performed, 24 hours later, the changes in airway resistance (RI) and lung dynamic compliance (Cdyn) in response to acetylcholine chloride (ACH) were evaluated, and blood, bronchoalveolar lavage fluid (BALF) and lung tissue were taken at that time. The number of eosinophils in blood and various leukocytes in BALF were determined. Lung protein was extracted and probed for TRPA1 and TRPV1 expression. Interleukin (IL)-13, substance P (SP), prostaglandin D2 (PGD2) and nerve growth factor (NGF) in BALF were measured by enzyme-linked immunosorbent assay. RESULTS PM2.5 treated mice showed significantly greater changes in the number of inflammatory cells in blood and BALF, in RI and Cdyn in response to ACH, and in lung histopathology, indicated by inflammatory cell infiltration, thickened bronchial smooth muscles and bronchial mucosa damage, compared to controls. In addition, higher expression of TRPA1 and TRPV1 in lung and IL-13, SP, PGD2 and NGF in BALF were seen in mice exposed to PM2.5. All effects were most pronounced in mice in the 42-day model. CONCLUSIONS PM2.5 exacerbates effects of asthma in this model, possibly by regulating TRPA1 and TRPV1 and the relevant neurokines.
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Affiliation(s)
- Hong Liu
- a School of Basic Medicine , Nanjing University of Chinese Medicine , Nanjing , Jiangsu Province , People's Republic of China.,b Library of Nanjing University of Chinese Medicine , Nanjing , Jiangsu Province , People's Republic of China
| | - Xinsheng Fan
- a School of Basic Medicine , Nanjing University of Chinese Medicine , Nanjing , Jiangsu Province , People's Republic of China
| | - Naiqian Wang
- a School of Basic Medicine , Nanjing University of Chinese Medicine , Nanjing , Jiangsu Province , People's Republic of China
| | - Yuyan Zhang
- c Nanjing Environmental Monitoring Center , Nanjing , Jiangsu Province , People's Republic of China
| | - Jinghua Yu
- d First school of clinical medicine , Nanjing University of Chinese Medicine , Nanjing , Jiangsu Province , People's Republic of China
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27
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He M, Ichinose T, Yoshida S, Shiba F, Arashidani K, Takano H, Sun G, Shibamoto T. Differences in allergic inflammatory responses in murine lungs: comparison of PM2.5 and coarse PM collected during the hazy events in a Chinese city. Inhal Toxicol 2016; 28:706-718. [PMID: 27919164 DOI: 10.1080/08958378.2016.1260185] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Urban particulate matter (PM) is associated with an increase in asthma. PM2.5 (<PM2.5 μm) and coarse PM (CPM: PM2.5-PM10 μm) were collected from the air in a Chinese city during haze events. The amounts of polycyclic aromatic hydrocarbons (PAHs) were higher in PM2.5 than in CPM. Conversely, microbial elements LPS and β-glucan were much higher in CPM than in PM2.5. Concentrations of Si, Al, Fe, and Ti in CPM were greater than in PM2.5, while Pb, Cu and As concentrations were lower than in PM2.5. When RAW264.7 cells were treated with PM2.5 and CPM, the pro-inflammatory response in the cells was associated with the microbial element levels and attenuated partly by both polymyxin B (PMB) and N-acetylcystein (NAC). The expression of the oxidative stress response gene heme oxygenase1 was associated with PAHs levels. The exacerbating effects of the two-types of PM on murine lung eosinophilia were compared to clarify the role of toxic materials. When BALB/c mice were intratracheally instilled with PM2.5 or CPM (total 0.4 mg) + ovalbumin (OVA), both exacerbated lung eosinophilia along with allergy-relevant biological indicators, such as OVA-specific IgE in serum; enhancement of lung pathology when compared with counterpart samples without OVA. The exacerbating effects were greater in microbial element-rich CPM than in organic chemical-rich PM2.5. These results indicate that microbial elements have more potently exacerbating effects on the development of lung eosinophilia than do organic chemicals. In addition, oxidative stress and transition metals might be associated with the exacerbation of this negative effect.
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Affiliation(s)
- Miao He
- a School of Public Health, China Medical University , Shenyang , China.,b Department of Health Sciences , Oita University of Nursing and Health Sciences , Oita , Japan
| | - Takamichi Ichinose
- b Department of Health Sciences , Oita University of Nursing and Health Sciences , Oita , Japan
| | - Seiichi Yoshida
- b Department of Health Sciences , Oita University of Nursing and Health Sciences , Oita , Japan
| | - Fumiko Shiba
- b Department of Health Sciences , Oita University of Nursing and Health Sciences , Oita , Japan
| | - Keiichi Arashidani
- c Department of Immunology and Parasitology , School of Medicine, University of Occupational and Environmental Health , Fukuoka , Japan
| | - Hirohisa Takano
- d Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University , Kyoto , Japan , and
| | - Guifan Sun
- a School of Public Health, China Medical University , Shenyang , China
| | - Takayuki Shibamoto
- e Department of Environmental Toxicology , University of California , Davis , CA , USA
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28
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Song Y, Ichinose T, He M, He C, Morita K, Yoshida Y. Lipopolysaccharide attached to urban particulate matter 10 suppresses immune responses in splenocytes while particulate matter itself activates NF-κB. Toxicol Res (Camb) 2016; 5:1445-1452. [PMID: 30090448 DOI: 10.1039/c6tx00216a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 07/13/2016] [Indexed: 11/21/2022] Open
Abstract
We previously reported that Asian sand dust (ASD), which contains particulate matter (PM) less than 10 μm in diameter (PM10), induced subacute inflammation in splenocytes. However, it was unclear whether the PM itself or compounds attached to its surface induced the inflammation. Here we characterized the role of organic substances adsorbed onto the PM10 surface in triggering inflammation by comparing the effect on splenocyte activation of PM10 from urban areas (urPM10), which is rich in lipopolysaccharide (LPS) as compared to ASD, with that of heated PM10 (H-PM). BALB/c mice were intratracheally administered urPM10 or H-PM with or without LPS (1 ng and 10 ng) four times at 2-week intervals, and splenocytes were prepared at 24 h after the final administration to assay the immune responses. urPM10 suppressed splenocyte activation, while H-PM activated splenocytes and LPS neutralization by polymyxin B rescued urPM10-induced immunosuppression. Co-administration of LPS with H-PM clearly suppressed mitogen-induced immune responses in the spleen. Consistent with these results, H-PM induced the phosphorylation of nuclear factor κB (NF-κB) p65 and I kappa B kinase (IKK), which was inhibited by co-administration of LPS. In mice deficient in the LPS signal transducer MyD88, splenocyte activation after LPS or H-PM treatment in vivo was comparable to that in the control. Altogether, our results indicate that PM10 itself could activate NF-κB through the MyD88 pathway, which was modulated by the amount of LPS attached.
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Affiliation(s)
- Yuan Song
- Department of Immunology and Parasitology , School of Medicine , University of Occupational and Environmental Health , Japan , 1-1 Iseigaoka , Yahatanishi-ku , Kitakyushu 807-8555 , Japan . ; ; Tel: +81-93-691-7431.,Department of Clinical Laboratory , the Fourth Hospital of Hebei Medical University , No. 169 Tian Shan Street , Shijiazhuang , 050035 , China
| | - Takamichi Ichinose
- Department of Health Sciences , Oita University of Nursing and Health Sciences , 2944-9 Notsuharu , Oita 870-1201 , Japan
| | - Miao He
- Department of Health Sciences , Oita University of Nursing and Health Sciences , 2944-9 Notsuharu , Oita 870-1201 , Japan
| | - Cuiying He
- Department of Immunology and Parasitology , School of Medicine , University of Occupational and Environmental Health , Japan , 1-1 Iseigaoka , Yahatanishi-ku , Kitakyushu 807-8555 , Japan . ; ; Tel: +81-93-691-7431
| | - Kentaro Morita
- Department of Immunology and Parasitology , School of Medicine , University of Occupational and Environmental Health , Japan , 1-1 Iseigaoka , Yahatanishi-ku , Kitakyushu 807-8555 , Japan . ; ; Tel: +81-93-691-7431
| | - Yasuhiro Yoshida
- Department of Immunology and Parasitology , School of Medicine , University of Occupational and Environmental Health , Japan , 1-1 Iseigaoka , Yahatanishi-ku , Kitakyushu 807-8555 , Japan . ; ; Tel: +81-93-691-7431
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29
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Bekki K, Ito T, Yoshida Y, He C, Arashidani K, He M, Sun G, Zeng Y, Sone H, Kunugita N, Ichinose T. PM2.5 collected in China causes inflammatory and oxidative stress responses in macrophages through the multiple pathways. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 45:362-9. [PMID: 27393915 DOI: 10.1016/j.etap.2016.06.022] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 06/20/2016] [Accepted: 06/21/2016] [Indexed: 05/20/2023]
Abstract
Air pollution continues to increase in East Asia, particularly in China, and is considered to cause serious health problems. In this study, we investigated the toxicological properties of particulate matter ≤2.5mm (PM2.5) collected in an urban area in China (Shenyang), focusing on inflammation and oxidative stress tightly linked to respiratory diseases. Exposure to PM2.5 significantly increased the expression levels of inflammatory (interleukin-1β and cyclooxygenase-2) and oxidative stress (heme oxygenase1) genes in the mouse macrophages. PM2.5-caused inflammatory response was strongly suppressed by endotoxin neutralizer (polymyxin B) and knock-out of toll-like receptor 4, while oxidative stress was not. On the other hand, an antioxidant (N-acetylcystein) suppressed oxidative stress, but not inflammatory response. These results suggest that PM2.5 in the atmospheric environment of China causes inflammation and oxidative stress in macrophages via separate pathways.
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Affiliation(s)
- Kanae Bekki
- Department of Environmental Health, National Institute of Public Health, 2-3-6 Minami, Wako-shi, Saitama, 351-0197, Japan
| | - Tomohiro Ito
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan.
| | - Yasuhiro Yoshida
- Department of Immunology, School of Medicine, University of Occupational and Environmental Health, 1-1, Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka, 807-8555, Japan
| | - Cuiying He
- Department of Immunology, School of Medicine, University of Occupational and Environmental Health, 1-1, Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka, 807-8555, Japan
| | - Keiichi Arashidani
- Department of Immunology, School of Medicine, University of Occupational and Environmental Health, 1-1, Iseigaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka, 807-8555, Japan
| | - Miao He
- Environment and Non-Communicable Disease Research Center, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province, PR China
| | - Guifan Sun
- Environment and Non-Communicable Disease Research Center, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province, PR China
| | - Yang Zeng
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
| | - Hideko Sone
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan
| | - Naoki Kunugita
- Department of Environmental Health, National Institute of Public Health, 2-3-6 Minami, Wako-shi, Saitama, 351-0197, Japan
| | - Takamichi Ichinose
- Department of Health Sciences, Oita University of Nursing and Health Sciences, 2944-9 Megusuno, Oita City, Oita Prefecture, 870-1201, Japan
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30
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Li X, Ding Z, Zhang C, Zhang X, Meng Q, Wu S, Wang S, Yin L, Pu Y, Chen R. MicroRNA-1228(*) inhibit apoptosis in A549 cells exposed to fine particulate matter. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:10103-10113. [PMID: 26867688 DOI: 10.1007/s11356-016-6253-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 02/04/2016] [Indexed: 06/05/2023]
Abstract
Studies have reported associations between fine particulate matter (PM2.5) and respiratory disorders; however, the underlying mechanism is not completely clear owing to the complex components of PM2.5. microRNAs (miRNAs) demonstrate tremendous regulation to target genes, which are sensitive to exogenous stimulation, and facilitate the integrative understood of biological responses. Here, significantly modulated miRNA were profiled by miRNA microarray, coupled with bioinformatic analysis; the potential biological function of modulated miRNA were predicted and subsequently validated by cell-based assays. Downregulation of miR-1228-5p (miR-1228(*)) expression in human A549 cells were associated with PM2.5-induced cellular apoptosis through a mitochondria-dependent pathway. Further, overexpression of miR-1228(*) rescued the cellular damages induced by PM2.5. Thus, our results demonstrate that PM2.5-induced A549 apoptosis is initiated by mitochondrial dysfunction and miR-1228(*) could protect A549 cells against apoptosis. The involved pathways and target genes might be used for future mechanistic studies.
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Affiliation(s)
- Xiaobo Li
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China
| | - Zhen Ding
- Department of Environmental Health and Endemic Disease Control, Jiangsu Provincial Center for Disease Prevention and Control, Nanjing, 210009, China
| | - Chengcheng Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China
| | - Xin Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China
| | - Qingtao Meng
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China
| | - Shenshen Wu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China
| | - Shizhi Wang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China
| | - Lihong Yin
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China
| | - Yuepu Pu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China
| | - Rui Chen
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Dingjiaqiao 87, Nanjing, 210009, China.
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31
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He M, Ichinose T, Kobayashi M, Arashidani K, Yoshida S, Nishikawa M, Takano H, Sun G, Shibamoto T. Differences in allergic inflammatory responses between urban PM2.5 and fine particle derived from desert-dust in murine lungs. Toxicol Appl Pharmacol 2016; 297:41-55. [PMID: 26917405 DOI: 10.1016/j.taap.2016.02.017] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 02/17/2016] [Accepted: 02/19/2016] [Indexed: 01/28/2023]
Abstract
The biological and chemical natures of materials adsorbed onto fine particulate matter (PM2.5) vary by origin and passage routes. The exacerbating effects of the two samples-urban PM2.5 (U-PM2.5) collected during the hazy weather in a Chinese city and fine particles (ASD-PM2.5) collected during Asian sand dust (ASD) storm event days in Japan-on murine lung eosinophilia were compared to clarify the role of toxic materials in PM2.5. The amounts of β-glucan and mineral components were higher in ASD-PM2.5 than in U-PM2.5. On the other hand, organic chemicals, including polycyclic aromatic hydrocarbons (PAHs), were higher in U-PM2.5 than in ASD-PM2.5. When BALB/c mice were intratracheally instilled with U-PM2.5 and ASD-PM2.5 (total 0.4 mg/mouse) with or without ovalbumin (OVA), various biological effects were observed, including enhancement of eosinophil recruitment induced by OVA in the submucosa of the airway, goblet cell proliferation in the bronchial epithelium, synergic increase of OVA-induced eosinophil-relevant cytokines and a chemokine in bronchoalveolar lavage fluid, and increase of serum OVA-specific IgG1 and IgE. Data demonstrate that U-PM2.5 and ASD-PM2.5 induced allergic inflammatory changes and caused lung pathology. U-PM2.5 and ASD-PM2.5 increased F4/80(+) CD11b(+) cells, indicating that an influx of inflammatory and exudative macrophages in lung tissue had occurred. The ratio of CD206 positive F4/80(+) CD11b(+) cells (M2 macrophages) in lung tissue was higher in the OVA+ASD-PM2.5 treated mice than in the OVA+U-PM2.5 treated mice. These results suggest that the lung eosinophilia exacerbated by both PM2.5 is due to activation of a Th2-associated immune response along with induced M2 macrophages and the exacerbating effect is greater in microbial element (β-glucan)-rich ASD-PM2.5 than in organic chemical-rich U-PM2.5.
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Affiliation(s)
- Miao He
- Environment and Non-communicable Disease Research Center, School of Public Health, China Medical University, Shenyang 110122, China; Department of Health Sciences, Oita University of Nursing and Health Sciences, Oita 870-1201, Japan.
| | - Takamichi Ichinose
- Department of Health Sciences, Oita University of Nursing and Health Sciences, Oita 870-1201, Japan.
| | - Makoto Kobayashi
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa 920-0293, Japan
| | - Keiichi Arashidani
- Department of Immunology and Parasitology, School of Medicine, University of Occupational and Environmental Health, Fukuoka 807-8555, Japan
| | - Seiichi Yoshida
- Department of Health Sciences, Oita University of Nursing and Health Sciences, Oita 870-1201, Japan
| | - Masataka Nishikawa
- Environmental Chemistry Division, National Institute for Environmental Studies, Ibaraki 305-8506, Japan
| | - Hirohisa Takano
- Environmental Health Division, Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8530, Japan
| | - Guifan Sun
- Environment and Non-communicable Disease Research Center, School of Public Health, China Medical University, Shenyang 110122, China
| | - Takayuki Shibamoto
- Department of Environmental Toxicology, University of California, Davis, CA 95616, USA
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