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Kim JW, Jeong JS, Kim JH, Kim CY, Chung EH, Ko JW, Kim TW. Turmeric extract alleviates airway inflammation via oxidative stress-driven MAPKs/MMPs pathway. Int Immunopharmacol 2024; 141:113018. [PMID: 39216235 DOI: 10.1016/j.intimp.2024.113018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 08/18/2024] [Accepted: 08/22/2024] [Indexed: 09/04/2024]
Abstract
Turmeric (Curcuma longa L.) extract (CLE) has been shown to elicit several pharmacological properties and is widely used in Asian traditional medicine. Herein, we assessed the impact of CLE on airway inflammation in BALB/c mice and A549 cells to clarify the underlying mechanism. An asthmatic mouse model was established by administering ovalbumin (OVA). CLE (100 or 300 mg/kg/day) was orally administered daily from days 18 to 23, with dexamethasone (3 mg/kg/day) used as the positive control. Human airway epithelial cells, A549, were stimulated using recombinant tumor necrosis factor-α. The CLE100 and CLE400 groups exhibited a significant downregulation in eosinophil counts, cytokine levels, and immunoglobulin-E levels. Moreover, CLE administration dose-dependently suppressed oxidative stress and airway inflammation in the lung tissue. CLE administration inhibited the phosphorylation of mitogen-activated protein kinases (MAPKs) and the expression and activity of matrix metalloproteinase (MMP)-9. In vitro, CLE treatment reduced mRNA levels of proinflammatory cytokines, MAPK phosphorylation, and the expression and activity of MMP-2 and MMP-9. Additionally, 50 µg/mL CLE and 2.5 µg/mL curcumin showed similar anti-inflammatory effects. Collectively, our findings revealed that CLE could suppress airway inflammation in asthmatic mice and A549 cells via oxidative stress-driven MAPK/MMPs signaling, suggesting that CLE could be developed as a potential treatment option for patients with asthma.
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Affiliation(s)
- Jeong-Won Kim
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon 34131, Republic of Korea
| | - Ji-Soo Jeong
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon 34131, Republic of Korea
| | - Jin-Hwa Kim
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon 34131, Republic of Korea
| | - Chang-Yeop Kim
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon 34131, Republic of Korea
| | - Eun-Hye Chung
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon 34131, Republic of Korea
| | - Je-Won Ko
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon 34131, Republic of Korea.
| | - Tae-Won Kim
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, 99 Daehak-ro, Daejeon 34131, Republic of Korea.
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Gong Z, Song T, Hu M, Che Q, Guo J, Zhang H, Li H, Wang Y, Liu B, Shi N. Natural and socio-environmental factors in the transmission of COVID-19: a comprehensive analysis of epidemiology and mechanisms. BMC Public Health 2024; 24:2196. [PMID: 39138466 PMCID: PMC11321203 DOI: 10.1186/s12889-024-19749-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 08/09/2024] [Indexed: 08/15/2024] Open
Abstract
PURPOSE OF REVIEW There are significant differences in the transmission rate and mortality rate of COVID-19 under environmental conditions such as seasons and climates. However, the impact of environmental factors on the role of the COVID-19 pandemic and the transmission mechanism of the SARS-CoV-2 is unclear. Therefore, a comprehensive understanding of the impact of environmental factors on COVID-19 can provide innovative insights for global epidemic prevention and control policies and COVID-19 related research. This review summarizes the evidence of the impact of different natural and social environmental factors on the transmission of COVID-19 through a comprehensive analysis of epidemiology and mechanism research. This will provide innovative inspiration for global epidemic prevention and control policies and provide reference for similar infectious diseases that may emerge in the future. RECENT FINDINGS Evidence reveals mechanisms by which natural environmental factors influence the transmission of COVID-19, including (i) virus survival and transport, (ii) immune system damage, (iii) inflammation, oxidative stress, and cell death, and (iiii) increasing risk of complications. All of these measures appear to be effective in controlling the spread or mortality of COVID-19: (1) reducing air pollution levels, (2) rational use of ozone disinfection and medical ozone therapy, (3) rational exposure to sunlight, (4) scientific ventilation and maintenance of indoor temperature and humidity, (5) control of population density, and (6) control of population movement. Our review indicates that with the continuous mutation of SARS-CoV-2, high temperature, high humidity, low air pollution levels, and low population density more likely to slow down the spread of the virus.
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Affiliation(s)
- Zhaoyuan Gong
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Tian Song
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Mingzhi Hu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Qianzi Che
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jing Guo
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Haili Zhang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Huizhen Li
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yanping Wang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Bin Liu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Nannan Shi
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
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Kim JW, Kim JH, Jeong JS, Kim CY, Chung EH, Kim SH, Hong EJ, Kwon HJ, Ko JW, Kim TW. Green tea extract suppresses airway inflammation via oxidative stress-driven MAPKs/MMP-9 signaling in asthmatic mice and human airway epithelial cells. Front Immunol 2024; 15:1362404. [PMID: 38745671 PMCID: PMC11091254 DOI: 10.3389/fimmu.2024.1362404] [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: 12/28/2023] [Accepted: 04/18/2024] [Indexed: 05/16/2024] Open
Abstract
Introduction The anti-inflammatory effect of green tea extract (GTE) has been confirmed in asthmatic mice, however, the pharmacological mechanism is not fully elucidated. Methods To investigate the therapeutic efficacy of GTE in asthma and identify specific pathways, murine model of allergic asthma was established by ovalbumin (OVA) sensitization and the challenge for 4 weeks, with oral treatment using GTE and dexamethasone (DEX). Inflammatory cell counts, cytokines, OVA-specific IgE, airway hyperreactivity, and antioxidant markers in the lung were evaluated. Also, pulmonary histopathological analysis and western blotting were performed. In vitro, we established the model by stimulating the human airway epithelial cell line NCI-H292 using lipopolysaccharide, and treating with GTE and mitogen-activated protein kinases (MAPKs) inhibitors. Results The GTE100 and GTE400 groups showed a decrease in airway hyperresponsiveness and the number of inflammatory cells in the bronchoalveolar lavage fluid (BALF) compared to the OVA group. GTE treatment also reduced interleukin (IL)-13, IL-5, and IL-4 levels in the BALF, and OVA-specific immunoglobulin E levels in the serum compared to those in the OVA group. GTE treatment decreased OVA-induced mucus secretion and airway inflammation. In addition, GTE suppressed the oxidative stress, and phosphorylation of MAPKs, which generally occurs after exposure to OVA. GTE administration also reduced matrix metalloproteinase-9 activity and protein levels. Conclusion GTE effectively inhibited asthmatic respiratory inflammation and mucus hyperproduction induced by OVA inhalation. These results suggest that GTE has the potential to be used for the treatment of asthma.
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Affiliation(s)
- Jeong-Won Kim
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, Daejeon, Republic of Korea
| | - Jin-Hwa Kim
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, Daejeon, Republic of Korea
| | - Ji-Soo Jeong
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, Daejeon, Republic of Korea
| | - Chang-Yeop Kim
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, Daejeon, Republic of Korea
| | - Eun-Hye Chung
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, Daejeon, Republic of Korea
| | - Sung-Hwan Kim
- Jeonbuk Department of Inhalation Research, Korea Institute of Toxicology, Jeongeup, Republic of Korea
| | - Eui-Ju Hong
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, Daejeon, Republic of Korea
| | - Hyo-Jung Kwon
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, Daejeon, Republic of Korea
| | - Je-Won Ko
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, Daejeon, Republic of Korea
| | - Tae-Won Kim
- College of Veterinary Medicine (BK21 FOUR Program), Chungnam National University, Daejeon, Republic of Korea
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Wu C, Hu X, Jiang Y, Tang J, Ge H, Deng S, Li X, Feng J. Involvement of ERK and Oxidative Stress in Airway Exposure to Cadmium Chloride Aggravates Airway Inflammation in Ovalbumin-Induced Asthmatic Mice. TOXICS 2024; 12:235. [PMID: 38668459 PMCID: PMC11054730 DOI: 10.3390/toxics12040235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/17/2024] [Accepted: 03/21/2024] [Indexed: 04/29/2024]
Abstract
Inhalation represents a significant route of cadmium (Cd) exposure, which is associated with an elevated risk of lung diseases. This research study aims to evaluate the impact of repeated low-dose cadmium inhalation on exacerbating airway inflammation induced by ovalbumin (OVA) in asthma-afflicted mice. Mice were grouped into four categories: control (Ctrl), OVA, cadmium chloride (CdCl2), and OVA + cadmium chloride (OVA + CdCl2). Mice in the OVA group displayed increased airway mucus secretion and peribronchial and airway inflammation characterized by eosinophil cell infiltration, along with elevated levels of Th2 cytokines (IL-4, IL-5, IL-13) in bronchoalveolar lavage fluids (BALFs). These parameters were further exacerbated in the OVA + CdCl2 group. Additionally, the OVA + CdCl2 group exhibited higher levels of the oxidative stress marker malondialdehyde (MDA), greater activity of glutathione peroxidase (GSH-Px), and higher phosphorylation of extracellular regulated kinase (ERK) in lung tissue. Treatment with U0126 (an ERK inhibitor) and α-tocopherol (an antioxidant) in the OVA + CdCl2 group resulted in reduced peribronchial and airway inflammation as well as decreased airway mucus secretion. These findings indicate that CdCl2 exacerbates airway inflammation in OVA-induced allergic asthma mice following airway exposure. ERK and oxidative stress are integral to this process, and the inhibition of these pathways significantly alleviates the adverse effects of CdCl2 on asthma exacerbation.
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Affiliation(s)
- Chendong Wu
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Xinyue Hu
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Yuanyuan Jiang
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Jiale Tang
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Huan Ge
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Shuanglinzi Deng
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Xiaozhao Li
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Juntao Feng
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
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Bowman WS, Schmidt RJ, Sanghar GK, Thompson Iii GR, Ji H, Zeki AA, Haczku A. "Air That Once Was Breath" Part 1: Wildfire-Smoke-Induced Mechanisms of Airway Inflammation - "Climate Change, Allergy and Immunology" Special IAAI Article Collection: Collegium Internationale Allergologicum Update 2023. Int Arch Allergy Immunol 2024; 185:600-616. [PMID: 38452750 DOI: 10.1159/000536578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/23/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND Wildfires are a global concern due to their wide-ranging environmental, economic, and public health impacts. Climate change contributes to an increase in the frequency and intensity of wildfires making smoke exposure a more significant and recurring health concern for individuals with airway diseases. Some of the most prominent effects of wildfire smoke exposure are asthma exacerbations and allergic airway sensitization. Likely due to the delayed recognition of its health impacts in comparison with cigarette smoke and industrial or traffic-related air pollution, research on the composition, the mechanisms of toxicity, and the cellular/molecular pathways involved is poor or non-existent. SUMMARY This review discusses potential underlying pathological mechanisms of wildfire-smoke-related allergic airway disease and asthma. We focused on major gaps in understanding the role of wildfire smoke composition in the development of airway disease and the known and potential mechanisms involving cellular and molecular players of oxidative injury at the epithelial barrier in airway inflammation. We examine how PM2.5, VOCs, O3, endotoxin, microbes, and toxic gases may affect oxidative stress and inflammation in the respiratory mucosal barrier. We discuss the role of AhR in mediating smoke's effects in alarmin release and IL-17A production and how glucocorticoid responsiveness may be impaired by IL-17A-induced signaling and epigenetic changes leading to steroid-resistant severe airway inflammation. KEY MESSAGE Effective mitigation of wildfire-smoke-related respiratory health effects would require comprehensive research efforts aimed at a better understanding of the immune regulatory effects of wildfire smoke in respiratory health and disease.
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Affiliation(s)
- Willis S Bowman
- UC Davis Lung Center, University of California, Davis, California, USA
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, School of Medicine, Sacramento, California, USA
| | - Rebecca J Schmidt
- Department of Public Health Sciences, School of Medicine, Sacramento, California, USA
| | - Gursharan K Sanghar
- UC Davis Lung Center, University of California, Davis, California, USA
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, School of Medicine, Sacramento, California, USA
| | - George R Thompson Iii
- UC Davis Lung Center, University of California, Davis, California, USA
- Division of Infectious Diseases, Department of Medicine, School of Medicine, Sacramento, California, USA
| | - Hong Ji
- UC Davis Lung Center, University of California, Davis, California, USA
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, Davis, California, USA
| | - Amir A Zeki
- UC Davis Lung Center, University of California, Davis, California, USA
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, School of Medicine, Sacramento, California, USA
| | - Angela Haczku
- UC Davis Lung Center, University of California, Davis, California, USA
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, School of Medicine, Sacramento, California, USA
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Saleem S. Targeting MAPK signaling: A promising approach for treating inflammatory lung disease. Pathol Res Pract 2024; 254:155122. [PMID: 38246034 DOI: 10.1016/j.prp.2024.155122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 01/06/2024] [Accepted: 01/08/2024] [Indexed: 01/23/2024]
Abstract
The extracellular signals that initiate intracellular reactions are dispatched by the mitogen-activated protein kinases (MAPKs), which oversee a multitude of cellular activities. p38, Extracellular signal-regulated kinase (ERK), and c-Jun NH2-terminal kinase (JNK) are members of the vertebrate family of MAPKs, and each MAPK signaling pathway consists of a MAPK kinase (MAP3K), a MAPK kinase (MAP2K), and a MAPK. These signaling pathways orchestrate numerous cellular processes, including cell growth, survival, differentiation, and apoptosis. The emergence of various inflammatory respiratory diseases in humans has been linked to the dysregulation of MAPK signaling pathways. Conditions such as asthma, lung cancer, pulmonary fibrosis, and COPD are among the prevalent respiratory ailments where MAPK plays a pivotal role. Additionally, MAPK is implicated in infectious diseases, including COVID-19, pneumonia, and tuberculosis. COPD, asthma, emphysema, chronic bronchitis, and other inflammatory lung disorders highlight the significance of MAPK as a potential target for therapeutic development. Further studies are needed to delve into the molecular mechanisms by which the MAPK signaling pathway contributes to inflammatory lung disorders, representing an area that demands continued research.
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Affiliation(s)
- Shakir Saleem
- Department of Public Health, College of Health Sciences, Saudi Electronic University, P.O. Box 93499, Riyadh 11673, Saudi Arabia.
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Liu N, Wang J, Wang X, Zhang M. Analysis of urine differential proteins in patients with allergic rhinitis. Heliyon 2023; 9:e17323. [PMID: 37426793 PMCID: PMC10329111 DOI: 10.1016/j.heliyon.2023.e17323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/04/2023] [Accepted: 06/13/2023] [Indexed: 07/11/2023] Open
Abstract
Background Allergic rhinitis (AR) is one of the most common clinical allergic diseases. Early diagnosis and medical intervention will benefit patients with allergic rhinitis. In this study, we focused on changes in urine proteomics in AR patients to investigate their potential clinical utility in AR diagnosis and evaluation. Material and methods TMT-labeled mass spectrometry-based proteomics was carried out to identify differentially expressed proteins (DEPs) in urine between allergic rhinitis patients and normal control groups. The molecular biological role of DEPs was investigated by Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, and protein-protein interaction (PPI) network analysis. Results Enrichment analysis showed that the differentially expressed proteins were mainly related to cell-cell adhesion, complement and coagulation cascades, peptidase activity regulation, MAP kinase activity, etc. Compared with the NC group, HLA-DRB1, WFDC12, and DEFA4, among the top ten up-regulated proteins in the urine of the AR group, were related to the biological process of the humoral immune response. Among the top 10 down-regulated proteins, GUSB, SQSTM1, and KIT are related to protein domain-specific binding in terms of molecular function. Conclusions We found differential protein changes between AR patients and normal subjects may be related to the pathophysiological changes of AR, which provides the possibility for further exploration of urinary proteomics biomarkers in the future.
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Affiliation(s)
- Na Liu
- Clinical Laboratory Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Peking University Ninth School of Clinical Medicine, Beijing, China
- Beijing Key Laboratory of Urinary Cellular Molecular Diagnostics, Beijing, China
| | - Jitu Wang
- Clinical Laboratory Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Peking University Ninth School of Clinical Medicine, Beijing, China
- Beijing Key Laboratory of Urinary Cellular Molecular Diagnostics, Beijing, China
| | - Xueyan Wang
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Man Zhang
- Clinical Laboratory Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Peking University Ninth School of Clinical Medicine, Beijing, China
- Beijing Key Laboratory of Urinary Cellular Molecular Diagnostics, Beijing, China
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Sun N, Huang Y, Zhang X, Niu Y, Duan Y, Kan H, Zhang R. Involvements of Nrf2 and oxidative stress in the ozone-elicited exacerbation in an allergic rhinitis model. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 255:114822. [PMID: 36965277 DOI: 10.1016/j.ecoenv.2023.114822] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 03/19/2023] [Accepted: 03/20/2023] [Indexed: 06/18/2023]
Abstract
OBJECTIVE AND DESIGN An experimental rat allergic rhinitis(AR) model was made to explore the effect of different concentrations of ozone exposure and evaluate the roles of nuclear factor erythroid 2-related factor 2(Nrf2) and oxidative stress in ozone exposure. METHOD Sprague-Dawley rats were sensitized with ovalbumin (OVA). Three groups of AR rats were exposed respectively to different concentrations of ozone for 2 h on 6 weeks. Nasal symptoms and OVA- specific Ig E in the serum were evaluated. The pathological changes in the nasal mucosa were examined. Malondialdehyde (MDA) level and activity of superoxide dismutase(SOD) and glutathione peroxidase (GSH-Px,GPX) in the nasal mucosa tissue were measured through a spectrophotometry-based method. Nrf2、Kelch-1ike ECH- associated protein-l (Keap1) proteins was measured by western blotting. GPX1、GPX2 mRNA were detected by quantitative real time-PCR(qRT-PCR). RESULTS Our results showed that ozone exposure induced a significant increase of the number of sneezes, nasal rubs, amount of nasal secretion and OVA-sIgE in the serum of AR model. Ozone effected oxidative stress in different concentration. The content of MDA in AREH group was significantly higher than AR groups. The activities of SOD and GSH-Px in nasal mucosa showed different trends in different concentration groups. The activities of SOD and GSH-Px in AREL and AREM groups were higher than AR group, but decreased at AREH group. The nucleoprotein level of Nrf2 in AREL and AREM groups was higher than AR groups. However, in AREH group, it was significantly decreased, compared with AREL and AREM groups. GPX1 and GPX2 mRNA levels in nasal mucosa showed the same trend in different exposure groups. CONCLUSIONS Different concentrations of ozone inhalation causes changes of the expression of Nrf2 nuclear protein and its target genes in nasal mucosa of AR. High concentration ozone breaks the redox balance and aggravates oxidative damage in AR. This study suggests that inhibiting oxidative stress might be a solution for ozone-elicited detrimental effects on AR.
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Affiliation(s)
- Na Sun
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai, China
| | - Yu Huang
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai, China
| | - Xueyan Zhang
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai, China
| | - Yue Niu
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and Key Lab of Health Technology Assessment of the Ministry of Health, Fudan University, Shanghai, China
| | - Yusen Duan
- Shanghai Environmental Monitoring Center, Shanghai, China
| | - Haidong Kan
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and Key Lab of Health Technology Assessment of the Ministry of Health, Fudan University, Shanghai, China
| | - Ruxin Zhang
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai, China.
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Morsi AA, Faruk EM, Mogahed MM, Baioumy B, Hussein AYA, El-Shafey RS, Mersal EA, Abdelmoneim AM, Alanazi MM, Elshazly AME. Modeling the Effects of Cypermethrin Toxicity on Ovalbumin-Induced Allergic Pneumonitis Rats: Macrophage Phenotype Differentiation and p38/STAT6 Signaling Are Candidate Targets of Pirfenidone Treatment. Cells 2023; 12:cells12070994. [PMID: 37048067 PMCID: PMC10093303 DOI: 10.3390/cells12070994] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/10/2023] [Accepted: 03/20/2023] [Indexed: 04/14/2023] Open
Abstract
Although the classic form of asthma is characterized by chronic pneumonitis with eosinophil infiltration and steroid responsivity, asthma has multifactorial pathogenesis and various clinical phenotypes. Previous studies strongly suggested that chemical exposure could influence the severity and course of asthma and reduce its steroid responsiveness. Cypermethrin (CYP), a common pesticide used in agriculture, was investigated for the possible aggravation of the ovalbumin (OVA)-induced allergic pneumonitis and the possible induction of steroid resistance in rats. Additionally, it was investigated whether pirfenidone (PFD) could substitute dexamethasone, as an alternative treatment option, for the induced steroid resistance. Fifty-six male Wistar albino rats were randomly divided into seven groups: control, PFD alone, allergic pneumonitis, CYP alone, allergic pneumonitis/CYP-exposed, allergic pneumonitis/CYP/dexamethasone (Dex), and allergic pneumonitis/CYP/PFD-treated groups. Allergic pneumonitis was induced by three intraperitoneal OVA injections administered once a week, followed by an intranasal OVA instillation challenge. CYP (25 mg/kg/d), Dex (1 mg/kg/d), and PFD (100 mg/kg/d) were administered orally from day 15 to the end of the experiment. Bronchoalveolar lavage fluid (BALF) was analyzed for cytokine levels. Hematoxylin and eosin (H&E) and periodic acid Schiff (PAS)-stained lung sections were prepared. Immunohistochemical identification of p38 MAPK and lung macrophages was performed. The inflammatory/oxidative status of the lung and PCR-quantification of the STAT6, p38 MAPK, MUC5AC, and IL-13 genes were carried out. The allergic pneumonitis-only group showed eosinophil-mediated inflammation (p < 0.05). Further CYP exposure aggravated lung inflammation and showed steroid-resistant changes, p38 activation, neutrophil-mediated, M1 macrophage-related inflammation (p < 0.05). All changes were reversed (p < 0.05) by PFD, meanwhile not by dexamethasone treatment. Pirfenidone could replace dexamethasone treatment in the current rat model of CYP-induced severe steroid-resistant asthma via inhibiting the M1 macrophage differentiation through modulation of the STAT6/p38 MAPK pathway.
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Affiliation(s)
- Ahmed A Morsi
- Department of Histology and Cell Biology, Faculty of Medicine, Fayoum University, Fayoum 63511, Egypt
| | - Eman Mohamed Faruk
- Anatomy Department, College of Medicine, Umm Al-Qura University, Makkah 24382, Saudi Arabia
- Department of Histology and Cytology, Faculty of Medicine, Benha University, Benha 13511, Egypt
| | - Mysara Mohamed Mogahed
- Department of Internal Medicine, Faculty of Medicine, Benha University, Benha 13511, Egypt
| | - Bodour Baioumy
- Department of Anatomy and Embryology, Faculty of Medicine, Benha University, Benha 13511, Egypt
| | - Asmaa Y A Hussein
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Benha University, Benha 13511, Egypt
| | - Rabab Shaban El-Shafey
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Benha University, Benha 13511, Egypt
| | - Ezat A Mersal
- Biochemistry Department, Faculty of Science, Assiut University, Assiut 71515, Egypt
- Department of Basic Medical Sciences, Vision Colleges, Riyadh 11451, Saudi Arabia
| | - Ahmed M Abdelmoneim
- Physiology Department, Faculty of Medicine, Fayoum University, Fayoum 63511, Egypt
| | - Mohammed M Alanazi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
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Stevens NC, Brown VJ, Domanico MC, Edwards PC, Van Winkle LS, Fiehn O. Alteration of glycosphingolipid metabolism by ozone is associated with exacerbation of allergic asthma characteristics in mice. Toxicol Sci 2023; 191:79-89. [PMID: 36331340 PMCID: PMC9887677 DOI: 10.1093/toxsci/kfac117] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Asthma is a common chronic respiratory disease exacerbated by multiple environmental factors. Acute ozone exposure has previously been implicated in airway inflammation, airway hyperreactivity, and other characteristics of asthma, which may be attributable to altered sphingolipid metabolism. This study tested the hypothesis that acute ozone exposure alters sphingolipid metabolism within the lung, which contributes to exacerbations in characteristics of asthma in allergen-sensitized mice. Adult male and female BALB/c mice were sensitized intranasally to house dust mite (HDM) allergen on days 1, 3, and 5 and challenged on days 12-14. Mice were exposed to ozone following each HDM challenge for 6 h/day. Bronchoalveolar lavage, lung lobes, and microdissected lung airways were collected for metabolomics analysis (N = 8/sex/group). Another subset of mice underwent methacholine challenge using a forced oscillation technique to measure airway resistance (N = 6/sex/group). Combined HDM and ozone exposure in male mice synergistically increased airway hyperreactivity that was not observed in females and was accompanied by increased airway inflammation and eosinophilia relative to control mice. Importantly, glycosphingolipids were significantly increased following combined HDM and ozone exposure relative to controls in both male and female airways, which was also associated with both airway resistance and eosinophilia. However, 15 glycosphingolipid species were increased in females compared with only 6 in males, which was concomitant with significant associations between glycosphingolipids and airway resistance that ranged from R2 = 0.33-0.51 for females and R2 = 0.20-0.34 in male mice. These observed sex differences demonstrate that glycosphingolipids potentially serve to mitigate exacerbations in characteristics of allergic asthma.
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Affiliation(s)
| | - Veneese J Brown
- Center for Health and the Environment, School of Veterinary Medicine, University of California Davis, Davis, California 95616, USA
| | - Morgan C Domanico
- Center for Health and the Environment, School of Veterinary Medicine, University of California Davis, Davis, California 95616, USA
| | - Patricia C Edwards
- Center for Health and the Environment, School of Veterinary Medicine, University of California Davis, Davis, California 95616, USA
| | - Laura S Van Winkle
- Center for Health and the Environment, School of Veterinary Medicine, University of California Davis, Davis, California 95616, USA
- Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California Davis, Davis, California 95616, USA
| | - Oliver Fiehn
- Genome Center, University of California Davis, Davis, California 95616, USA
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11
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Zhou Y, Qiu Y, Bao W, Han L, Xue Y, Zhang Y, Tian X, Fu Q, Lv C, Yin D, Zhang M. Evaluating the effects of vitamin D Level on airway obstruction in two asthma endotypes in humans and in two mouse models with different intake of vitamin D during early-life. Front Immunol 2023; 14:1107031. [PMID: 36793727 PMCID: PMC9922677 DOI: 10.3389/fimmu.2023.1107031] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 01/06/2023] [Indexed: 02/03/2023] Open
Abstract
Introduction Asthma is primarily divided into two categories: type 2 (T2-high) and non-type 2 (T2-low). A relationship between asthma severity and vitamin D deficiency has been identified, but its impact on each asthma endotype remains unknown. Methods We clinically examined the influence of vitamin D on patients with T2-high (n = 60) or T2-low asthma (n = 36) compared with controls (n = 40). Serum 25(OH)D levels, inflammatory cytokines and spirometry were measured. Mouse models were then used to further analyze the effects of vitamin D on both asthmatic endotypes. BALB/c mice were fed with vitamin D-deficient (LVD), -sufficient (NVD), or -supplemented diets (HVD) throughout lactation and offspring followed the same diet after weaning. Offspring were sensitized/challenged with ovalbumin (OVA) to establish "T2-high" asthma or OVA combined with ozone exposure (OVA + ozone) to induce "T2-low" asthma. Spirometry and serum, bronchoalveolar lavage fluid (BALF), and lung tissues were analyzed. Results Serum 25(OH)D levels were decreased in asthmatic patients compared with controls. Patients with vitamin D deficiency (Lo) had varying degrees of elevation of the pro-inflammatory cytokines IL-5, IL-6, and IL-17A, decreased expression of the anti-inflammatory cytokine IL-10, and altered forced expiratory volume in the first second as a percentage of predicted value (FEV1%pred) in both asthmatic endotypes. Vitamin D status had a stronger correlation with FEV1%pred in T2-low asthma than T2-high asthma, and 25(OH)D level was only positively linked to maximal mid-expiratory flow as a percentage of predicted value (MMEF%pred) in the T2-low group. Inflammation, hyperresponsiveness, and airway resistance (RL) was increased in both asthma models compared with controls while vitamin D deficiency further increased airway inflammation and airway obstruction. These findings were particularly prominent in T2-low asthma. Discussion The potential function and mechanisms of vitamin D and both asthma endotypes should be studied individually, and further analysis of the potential signaling pathways involved with vitamin D on T2-low asthma is warranted.
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Affiliation(s)
- Yan Zhou
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yali Qiu
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital of Nanjing Medical University, Shanghai, China
| | - Wuping Bao
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lei Han
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yishu Xue
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yingying Zhang
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xue Tian
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qiang Fu
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chengjian Lv
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dongning Yin
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min Zhang
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital of Nanjing Medical University, Shanghai, China,*Correspondence: Min Zhang,
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12
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Ho K, Weimar D, Torres-Matias G, Lee H, Shamsi S, Shalosky E, Yaeger M, Hartzler-Lovins H, Dunigan-Russell K, Jelic D, Novak CM, Gowdy KM, Englert JA, Ballinger MN. Ozone impairs endogenous compensatory responses in allergic asthma. Toxicol Appl Pharmacol 2023; 459:116341. [PMID: 36502870 PMCID: PMC9840700 DOI: 10.1016/j.taap.2022.116341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 12/02/2022] [Accepted: 12/04/2022] [Indexed: 12/13/2022]
Abstract
Asthma is a chronic inflammatory airway disease characterized by acute exacerbations triggered by inhaled allergens, respiratory infections, or air pollution. Ozone (O3), a major component of air pollution, can damage the lung epithelium in healthy individuals. Despite this association, little is known about the effects of O3 and its impact on chronic lung disease. Epidemiological data have demonstrated that elevations in ambient O3 are associated with increased asthma exacerbations. To identify mechanisms by which O3 exposure leads to asthma exacerbations, we developed a two-hit mouse model where mice were sensitized and challenged with three common allergens (dust mite, ragweed and Aspergillus fumigates, DRA) to induce allergic inflammation prior to exposure to O3 (DRAO3). Changes in lung physiology, inflammatory cells, and inflammation were measured. Exposure to O3 following DRA significantly increased airway hyperreactivity (AHR), which was independent of TLR4. DRA exposure resulted in increased BAL eosinophilia while O3 exposure resulted in neutrophilia. Additionally, O3 exposure following DRA blunted anti-inflammatory and antioxidant responses. Finally, there were significantly less monocytes and innate lymphoid type 2 cells (ILC2s) in the dual challenged DRA-O3 group suggesting that the lack of these immune cells may influence O3-induced AHR in the setting of allergic inflammation. In summary, we developed a mouse model that mirrors some aspects of the clinical course of asthma exacerbations due to air pollution and identified that O3 exposure in the asthmatic lung leads to impaired endogenous anti-inflammatory and antioxidant responses and alterations inflammatory cell populations.
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Affiliation(s)
- Kevin Ho
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America
| | - David Weimar
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America
| | - Gina Torres-Matias
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America; Biomedical Sciences Graduate Program, The Ohio State University, Columbus, OH, United States of America
| | - Hyunwook Lee
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America
| | - Saaleha Shamsi
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America
| | - Emily Shalosky
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America
| | - Michael Yaeger
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America; Biomedical Sciences Graduate Program, The Ohio State University, Columbus, OH, United States of America
| | - Hannah Hartzler-Lovins
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America; Molecular, Cellular and Developmental Biology Graduate Program, The Ohio State University, Columbus, OH, United States of America
| | - Katelyn Dunigan-Russell
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America
| | - Daria Jelic
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America
| | - Caymen M Novak
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America
| | - Kymberly M Gowdy
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America
| | - Joshua A Englert
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America
| | - Megan N Ballinger
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States of America.
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13
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Fang X, Huang S, Zhu Y, Lei J, Xu Y, Niu Y, Chen R. Short-term exposure to ozone and asthma exacerbation in adults: A longitudinal study in China. Front Public Health 2023; 10:1070231. [PMID: 36684992 PMCID: PMC9854395 DOI: 10.3389/fpubh.2022.1070231] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 12/13/2022] [Indexed: 01/09/2023] Open
Abstract
Background The relationships between short-term ozone exposure and the acute exacerbations of asthma in adults have not been fully studied. Existing studies commonly ignored the effects of ozone on mild or early asthma exacerbations. Objective To investigate the associations between short-term ozone exposure and asthma exacerbations in Chinese adults. Methods We administered health management for adult asthma patients through the Respiratory Home Platform and required them to monitor their lung function every morning and evening by themselves. Finally, a total of 4,467 patients in 18 Chinese cities were included in the current analyses, with 79,217 pairs of lung function records. The maximum daily 8-h average ozone concentrations were collected from fixed-site air quality monitoring stations. We calculated diurnal peak expiratory flow (PEF) variation using morning and evening measurements of PEF and then defined different severity of asthma exacerbations with diurnal PEF variations >10, 15, and 20%, respectively. A binomial distributed generalized additive mixture model combined with distribution non-linear models was applied to examine the association of ozone with asthma exacerbations. We further conducted stratified analyses by sex, age, season of lung function tests, and region. Measurements and results We found that short-term ozone exposure was independently associated with an elevated risk of asthma exacerbations defined by lung function and the effects could last for about 2 days. At lag 0-2 days, each 10 μg/m3 increment in ozone concentration was associated with odds ratios of 1.010 [95% confidence interval (CI): 1.003, 1.017], 1.014 (95% CI: 1.005, 1.023), and 1.017 (95% CI: 1.006, 1.028) for asthma exacerbations that were defined by diurnal PEF variation over 10, 15, and 20%, respectively. The associations remained significant after adjusting for other pollutants, and became unstable when using 24-h average ozone concentration. We also found that the associations were relatively stronger in males, those aged 45 years and older, and in the warm season. Conclusions Our results suggest that short-term ozone exposure can increase the risk of asthma exacerbations, even in the early stage of exacerbation. Male and older asthma patients may be more vulnerable to ozone air pollution, especially in the warm season.
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Affiliation(s)
- Xinyi Fang
- Key Laboratory of Public Health Safety of the Ministry of Education, NHC Key Laboratory of Health Technology Assessment, School of Public Health, Fudan University, Shanghai, China
| | - Suijie Huang
- Guangzhou Homesun Medical Technology Co. Ltd., Guangzhou, Guangdong Province, China
| | - Yixiang Zhu
- Key Laboratory of Public Health Safety of the Ministry of Education, NHC Key Laboratory of Health Technology Assessment, School of Public Health, Fudan University, Shanghai, China
| | - Jian Lei
- Key Laboratory of Public Health Safety of the Ministry of Education, NHC Key Laboratory of Health Technology Assessment, School of Public Health, Fudan University, Shanghai, China
| | - Yanyi Xu
- Key Laboratory of Public Health Safety of the Ministry of Education, NHC Key Laboratory of Health Technology Assessment, School of Public Health, Fudan University, Shanghai, China
| | - Yue Niu
- Key Laboratory of Public Health Safety of the Ministry of Education, NHC Key Laboratory of Health Technology Assessment, School of Public Health, Fudan University, Shanghai, China
| | - Renjie Chen
- Key Laboratory of Public Health Safety of the Ministry of Education, NHC Key Laboratory of Health Technology Assessment, School of Public Health, Fudan University, Shanghai, China
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14
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Lu X, Gong C, Lv K, Zheng L, Li B, Zhao Y, Lu H, Wei T, Huang J, Li R. Impacts of combined exposure to formaldehyde and PM 2.5 at ambient concentrations on airway inflammation in mice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 315:120234. [PMID: 36195197 DOI: 10.1016/j.envpol.2022.120234] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 09/16/2022] [Accepted: 09/17/2022] [Indexed: 06/16/2023]
Abstract
Asthma is a respiratory disease that can be exacerbated by certain environmental factors. Both formaldehyde (FA) and PM2.5, the most common indoor and outdoor air pollutants in mainland China, are closely associated with the onset and development of asthma. To date, however, there is very little report available on whether there is an exacerbating effect of combined exposure to FA and PM2.5 at ambient concentrations. In this study, asthmatic mice were exposed to 1 mg/m3 FA, 1 mg/kg PM2.5, or a combination of 0.5 mg/m3 FA and 0.5 mg/kg PM2.5, respectively. Results demonstrated that both levels of oxidative stress and inflammation were significantly increased, accompanied by an obvious decline in lung function. Further, the initial activation of p38 MAPK and NF-κB that intensified the immune imbalance of asthmatic mice were found to be visibly mitigated following the administration of SB203580, a p38 MAPK inhibitor. Noteworthily, it was found that combined exposure to the two at ambient concentrations could significantly worsen asthma than exposure to each of the two alone at twice the ambient concentration. This suggests that combined exposure to formaldehyde and PM2.5 at ambient concentrations may have a synergistic effect, thus causing more severe damage in asthmatic mice. In general, this work has revealed that the combined exposure to FA and PM2.5 at ambient concentrations can synergistically aggravate asthma via the p38 MAPK pathway in mice.
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Affiliation(s)
- Xianxian Lu
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, 430079, China; Department of Materials and Architectural Engineering, Hebei Institute of Mechanical and Electrical Technology, Xingtai, 054002, China
| | - Cunyi Gong
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, 430079, China
| | - Ke Lv
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, 430079, China
| | - Lifang Zheng
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, 430079, China
| | - Beibei Li
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, 430079, China
| | - Yuanteng Zhao
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, 430079, China
| | - Haonan Lu
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, 430079, China
| | - Tingting Wei
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, 430079, China
| | - Jiawei Huang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, 430079, China
| | - Rui Li
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, 430079, China.
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15
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Ferrara F, Cordone V, Pecorelli A, Benedusi M, Pambianchi E, Guiotto A, Vallese A, Cervellati F, Valacchi G. Ubiquitination as a key regulatory mechanism for O 3-induced cutaneous redox inflammasome activation. Redox Biol 2022; 56:102440. [PMID: 36027676 PMCID: PMC9425076 DOI: 10.1016/j.redox.2022.102440] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 10/26/2022] Open
Abstract
NLRP1 is one of the major inflammasomes modulating the cutaneous inflammatory responses and therefore linked to a variety of cutaneous conditions. Although NLRP1 has been the first inflammasome to be discovered, only in the past years a significant progress was achieved in understanding the molecular mechanism and the stimuli behind its activation. In the past decades a crescent number of studies have highlighted the role of air pollutants as Particulate Matter (PM), Cigarette Smoke (CS) and Ozone (O3) as trigger stimuli for inflammasomes activation, especially via Reactive Oxygen Species (ROS) mediators. However, whether NLRP1 can be modulated by air pollutants via oxidative stress and the mechanism behind its activation is still poorly understood. Here we report for the first time that O3, one of the most toxic pollutants, activates the NLRP1 inflammasome in human keratinocytes via oxidative stress mediators as hydrogen peroxide (H2O2) and 4-hydroxy-nonenal (4HNE). Our data suggest that NLRP1 represents a target protein for 4HNE adduction that possibly leads to its proteasomal degradation and activation via the possible involvement of E3 ubiquitin ligase UBR2. Of note, Catalase (Cat) treatment prevented inflammasome assemble and inflammatory cytokines release as well as NLRP1 ubiquitination in human keratinocytes upon O3 exposure. The present work is a mechanistic study that follows our previous work where we have showed the ability of O3 to induce cutaneous inflammasome activation in humans exposed to this pollutant. In conclusion, our results suggest that O3 triggers the cutaneous NLRP1 inflammasome activation by ubiquitination and redox mechanism.
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Affiliation(s)
- Francesca Ferrara
- Dept. of Neuroscience and Rehabilitation, University of Ferrara, Ferrara, Italy
| | - Valeria Cordone
- Dept. of Environmental Sciences and Prevention, University of Ferrara, Ferrara, Italy
| | - Alessandra Pecorelli
- Plants for Human Health Institute, Animal Sciences Dept., NC Research Campus, NC State University, Kannapolis, NC, USA
| | - Mascia Benedusi
- Dept. of Neuroscience and Rehabilitation, University of Ferrara, Ferrara, Italy
| | - Erika Pambianchi
- Plants for Human Health Institute, Animal Sciences Dept., NC Research Campus, NC State University, Kannapolis, NC, USA.
| | - Anna Guiotto
- Dept. of Neuroscience and Rehabilitation, University of Ferrara, Ferrara, Italy; Plants for Human Health Institute, Animal Sciences Dept., NC Research Campus, NC State University, Kannapolis, NC, USA
| | - Andrea Vallese
- Dept. of Neuroscience and Rehabilitation, University of Ferrara, Ferrara, Italy
| | - Franco Cervellati
- Dept. of Neuroscience and Rehabilitation, University of Ferrara, Ferrara, Italy
| | - Giuseppe Valacchi
- Plants for Human Health Institute, Animal Sciences Dept., NC Research Campus, NC State University, Kannapolis, NC, USA; Dept. of Environmental Sciences and Prevention, University of Ferrara, Ferrara, Italy; Dept. of Food and Nutrition, Kyung Hee University, Seoul, Republic of Korea.
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16
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Lian Z, Qi H, Liu X, Zhang Y, Xu R, Yang X, Zeng Y, Li J. Ambient ozone, and urban PM 2.5 co-exposure, aggravate allergic asthma via transient receptor potential vanilloid 1-mediated neurogenic inflammation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 243:114000. [PMID: 35994908 DOI: 10.1016/j.ecoenv.2022.114000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 08/09/2022] [Accepted: 08/17/2022] [Indexed: 06/15/2023]
Abstract
Allergic asthma is the most common pulmonary inflammatory disease, and epidemiological studies have revealed that PM2.5 or ambient ozone (O3) exposure contribute to the higher prevalence of allergic asthma. Current experimental evidence focus principally on the pathogenic effect of exposure to a single air pollutant, ignoring the possible synergistic effect of combined exposure to a mix of these pollutants, which is a more realistic scenario. In this study, allergic mice and a nociceptor antagonist were used to explore the mechanisms of co-exposure to these two important air pollutants. Compared with exposure to either PM2.5 or O3, combined exposure to both greatly aggravated allergic asthma in a dose dependent manner, including increased airway hyperresponsiveness, goblet cell metaplasia, more severe airway inflammation and higher oxidative stress levels. In addition, co-exposure in the allergic mice resulted in elevation of the expression of transient receptor potential vanilloid 1 (TRPV1), and of the production of substance P (SP), which exacerbated lung inflammation by neurogenic inflammation. TRPV1 antagonist (capsazepine, CPZ) treatment for the co-exposed allergic mice, markedly attenuated TRPV1 expression and SP release, and reduced airway inflammation and oxidative damage, further alleviating airway hyperresponsiveness. We conclude that neuro-immune interactions might be involved in PM2.5 and O3 co-exposure aggravated allergic asthma.
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Affiliation(s)
- Zongpei Lian
- Brain Science and Advanced Technology Institute, School of Medicine, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Haomin Qi
- Brain Science and Advanced Technology Institute, School of Medicine, Wuhan University of Science and Technology, Wuhan 430081, China; Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Medicine, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Xudong Liu
- Department of Food Science and Engineering, Moutai Institute, Renhuai 564507, China
| | - Yuchao Zhang
- Department of Food Science and Engineering, Moutai Institute, Renhuai 564507, China
| | - Ruijia Xu
- Brain Science and Advanced Technology Institute, School of Medicine, Wuhan University of Science and Technology, Wuhan 430081, China; Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Medicine, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Xu Yang
- Section of Environmental Biomedicine, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Sciences, Central China Normal University, Wuhan 430079, China
| | - Yan Zeng
- Brain Science and Advanced Technology Institute, School of Medicine, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Jinquan Li
- Brain Science and Advanced Technology Institute, School of Medicine, Wuhan University of Science and Technology, Wuhan 430081, China; Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Medicine, Wuhan University of Science and Technology, Wuhan 430065, China.
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17
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Liu Z, Gong F, Tian L, Yan J, Li K, Tan Y, Han J, Zhao Y, Li D, Xi Z, Liu X. Acute exercise in ozone-polluted air induces apoptosis in rat quadriceps femoris muscle cells via mitochondrial pathway. SPORTS MEDICINE AND HEALTH SCIENCE 2022; 4:190-197. [PMID: 36090921 PMCID: PMC9453690 DOI: 10.1016/j.smhs.2022.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/09/2022] [Accepted: 06/19/2022] [Indexed: 11/30/2022] Open
Abstract
Ozone (O3) pollution can decrease sport performance and induce respiratory toxicity, but relatively few studies have investigated its effects on skeletal muscles. We randomly assigned rats to the following groups based on a 2 × 4 two-factor factorial design: Air+0, Air+10, Air+15, and Air+20, O3+0, O3+10, O3+15, and O3+20. The rats in the +0 groups rested, whereas those in the +10, +15, and +20 groups ran on a treadmill (in clean air for Air groups and in air polluted with 0.14 parts per million [ppm] O3 for O3 groups) at speeds of 10, 15, and 20 m/min, respectively, for 1 h. Thereafter, key enzyme activities involving the tricarboxylic acid cycle, oxidative phosphorylation, adenosine triphosphate (ATP) content, histopathological changes, oxidative stress, inflammation factors, and apoptosis were assessed in the rat quadriceps femoris samples. Ozone reduced key enzyme activities and ATP contents in the quadriceps femoris regardless of whether the rats exercised. Pathological changes, inflammatory factors, oxidative stress, and mitochondria-dependent apoptosis were only evident under conditions of exercise combined with ozone and increasingly worsened as exercise intensity increased. These findings suggested that acute exercise under ozone exposure could induce damage to the quadriceps femoris, which would negatively affect sport performance. Ozone-induced disrupted energy metabolism might be an early event that becomes more critical as exercise intensity increases. Therefore, care should be taken when exercising in polluted air, even when ozone pollution is mild. O3 itself inhibited key enzyme activities in TCA and oxidative phosphorylation. O3 decreased ATP production regardless of whether it was coupled with exercise. Acute exercise in O3 polluted air induced oxidative stress, inflammatory reaction. Acute exercise in O3 polluted air caused mitochondria-mediated apoptosis. O3 and exercise synergistically regulated levels of IL-2, IL-6 and 8-OHdG in muscles.
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Affiliation(s)
- Ziyi Liu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
- Tianjin Key Laboratory of Exercise Physiology and Sports Medicine, Tianjin University of Sport, Tianjin, 301617, China
| | - Fuxu Gong
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
- Tianjin Key Laboratory of Exercise Physiology and Sports Medicine, Tianjin University of Sport, Tianjin, 301617, China
| | - Lei Tian
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Jun Yan
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Kang Li
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Yizhe Tan
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Jie Han
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Yue Zhao
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Da Li
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
| | - Zhuge Xi
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
- Corresponding author.
| | - Xiaohua Liu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 300050, China
- Tianjin Key Laboratory of Exercise Physiology and Sports Medicine, Tianjin University of Sport, Tianjin, 301617, China
- Corresponding author. Tianjin Institute of Environmental and Operational Medicine, No.1 Dali Road, Heping District, Tianjin, China.
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18
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Cook-Mills JM, Averill SH, Lajiness JD. Asthma, allergy and vitamin E: Current and future perspectives. Free Radic Biol Med 2022; 179:388-402. [PMID: 34785320 PMCID: PMC9109636 DOI: 10.1016/j.freeradbiomed.2021.10.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 10/12/2021] [Accepted: 10/21/2021] [Indexed: 02/03/2023]
Abstract
Asthma and allergic disease result from interactions of environmental exposures and genetics. Vitamin E is one environmental factor that can modify development of allergy early in life and modify responses to allergen after allergen sensitization. Seemingly varied outcomes from vitamin E are consistent with the differential functions of the isoforms of vitamin E. Mechanistic studies demonstrate that the vitamin E isoforms α-tocopherol and γ-tocopherol have opposite functions in regulation of allergic inflammation and development of allergic disease, with α-tocopherol having anti-inflammatory functions and γ-tocopherol having pro-inflammatory functions in allergy and asthma. Moreover, global differences in prevalence of asthma by country may be a result, at least in part, of differences in consumption of these two isoforms of tocopherols. It is critical in clinical and animal studies that measurements of the isoforms of tocopherols be determined in vehicles for the treatments, and in the plasma and/or tissues before and after intervention. As allergic inflammation is modifiable by tocopherol isoforms, differential regulation by tocopherol isoforms provide a foundation for development of interventions to improve lung function in disease and raise the possibility of early life dietary interventions to limit the development of lung disease.
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Affiliation(s)
- Joan M Cook-Mills
- Herman B Wells Center for Pediatric Research, Departments of Pediatrics and Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
| | - Samantha H Averill
- Herman B Wells Center for Pediatric Research, Departments of Pediatrics and Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Jacquelyn D Lajiness
- Herman B Wells Center for Pediatric Research, Departments of Pediatrics and Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
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19
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Xia T, Ma J, Sun Y, Sun Y. Androgen receptor suppresses inflammatory response of airway epithelial cells in allergic asthma through MAPK1 and MAPK14. Hum Exp Toxicol 2022; 41:9603271221121320. [PMID: 35982617 DOI: 10.1177/09603271221121320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Dysfunction of airway epithelial cells in patients with asthma is closely with the occurrence and development of allergic asthma. Finding the differences of airway epithelium between asthmatic patients and normal patients is helpful to find out new treatment strategies. METHODS First, three original microarray datasets (GSE89809, GSE41861, GSE104468) from the Gene Expression Omnibus (GEO) dataset were used to assess differentially expressed genes in the epithelial tissues between patients with allergic asthma and healthy controls. Then, 10 ng/mL TGF-β1 treated BEAS-2B cells and rats with ovalbumin induced allergic asthma were performed to confirm our assumption from the gene expression analysis with microarrays. RESULTS Top ten hub significant difference genes were obtained by Cytohubba plug-in from GSE41861, and found that androgen receptor (AR) was closely associated with the mitogen-activated protein kinase (MAPK) pathway, especially MAPK1 and MAPK14. After treated with the TGF-β1 treated BEAS-2B cells and rats with allergic asthma, we found that 5α-dihydrotestosterone (5α-DHT), AR agonist, significantly decreased the Th2 inflammation (IL-25 and IL-33), MAPK1 and MAPK14 proteins expression in vitro and in vivo. The roles of 5α-DHT were similar with the results of chicanine (a p38 MAPK and ERK1/2 inhibitor), but the roles of 5α-DHT were masked by the C16-PAF (a MAPK and MEK/ERK activator) treatment. CONCLUSION Androgen receptor limits the secretion of Th2 inflammatory factors by downregulating MAPK1 and MAPK14 in the TGF-β1 treated BEAS-2B cells and rats with ovalbumin induced allergic asthma, which plays a critical role for the therapeutics of patients with asthma.
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Affiliation(s)
- T Xia
- Department of Pediatrics, Yantai Affiliated Hospital of Binzhou Medical College, Yantai, China
| | - J Ma
- Department of Child Healthcare, Yantai Affiliated Hospital of Binzhou Medical College, Yantai, China
| | - Y Sun
- Department of Pediatrics, Yantai Affiliated Hospital of Binzhou Medical College, Yantai, China
| | - Y Sun
- Department of Pediatrics, Yantai Affiliated Hospital of Binzhou Medical College, Yantai, China
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20
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Xue Y, Zhou Y, Bao W, Fu Q, Hao H, Han L, Zhang X, Tian X, Zhang M. STAT3 and IL-6 Contribute to Corticosteroid Resistance in an OVA and Ozone-induced Asthma Model with Neutrophil Infiltration. Front Mol Biosci 2021; 8:717962. [PMID: 34760922 PMCID: PMC8573338 DOI: 10.3389/fmolb.2021.717962] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/21/2021] [Indexed: 11/13/2022] Open
Abstract
Exposure to high levels of ozone contributes to insensitivity to glucocorticoids in asthma treatment, but the underlying mechanisms are not known. We built two asthma models: a "T2-high" asthma model was established by ovalbumin (OVA) sensitization/challenge and OVA sensitization/challenge combined with ozone exposure (OVA + ozone) was used to induce airway inflammation with increased numbers of neutrophils to simulate "T2-low" asthma. The expression of T-helper (Th)1/2/17-related cytokines was measured by cytokine antibody arrays. Bronchial provocation tests were carried out to evaluate the lung resistance of mice. Hematoxylin and eosin staining, periodic acid-Schiff staining, and immunohistochemical (IHC) analyses of alpha-smooth muscle actin were undertaken to observe morphology changes in lungs. The expression of glucocorticoid receptors (GRs) and phosphorylated-GR (p-GR) was measured by western blotting. Nr3c1 mRNA was quantified by RT-qPCR. Protein expression of proinflammatory cytokines, signal transducer and activator of transcription 3 (STAT3), suppressor of cytokine signaling 3 (SOCS3), and CXCL1 was measured through ELISAs, western blotting, or IHC analyses. Resected lung tissue from seven asthma patients and 10 healthy controls undergoing thoracotomy for pulmonary nodules was evaluated by IHC analyses and ELISAs. In both asthma models, mucus hypersecretion, as well as inflammation, hyperresponsiveness, and remodeling of the airways, was present compared with the control group, whereas the OVA + ozone group showed severe neutrophil infiltration. The expression of Th17-related cytokines (interleukin (IL)-6, IL-17A, IL-21), GR protein, and CXCL1 increased in the OVA + ozone group, whereas the expression of p-GR decreased. Dexamethasone (Dex) could not totally reverse the expression of p-GR and histone deacetylase-2 in the OVA + ozone group. STAT3 expression increased in the OVA + ozone group and could not be completely reversed by Dex, and nor could IL-6 expression. A positive correlation between IL-6 or IL-17A and STAT3 and negative correlation between SOCS3 and STAT3 were shown, suggesting that the IL-6/STAT3 pathway may be involved in OVA + ozone-induced corticosteroid-resistant airway inflammation. In clinical samples, IL-17A expression in lung tissue was positively correlated with percent STAT3-positive area and negatively correlated with SOCS3 expression. The IL-6/STAT3 pathway may contribute to corticosteroid insensitivity in OVA + ozone-induced neutrophilic airway inflammation through regulation of Th17 cells and could provide new targets for individual treatment of corticosteroid resistance in asthma.
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Affiliation(s)
- Yishu Xue
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Zhou
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wuping Bao
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qiang Fu
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huijuan Hao
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lei Han
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xue Zhang
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xue Tian
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min Zhang
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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21
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Zheng J, Wu Q, Zou Y, Wang M, He L, Guo S. Respiratory Microbiota Profiles Associated With the Progression From Airway Inflammation to Remodeling in Mice With OVA-Induced Asthma. Front Microbiol 2021; 12:723152. [PMID: 34526979 PMCID: PMC8435892 DOI: 10.3389/fmicb.2021.723152] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 07/27/2021] [Indexed: 12/31/2022] Open
Abstract
Background The dysbiosis of respiratory microbiota plays an important role in asthma development. However, there is limited information on the changes in the respiratory microbiota and how these affect the host during the progression from acute allergic inflammation to airway remodeling in asthma. Objective An ovalbumin (OVA)-induced mouse model of chronic asthma was established to explore the dynamic changes in the respiratory microbiota in the different stages of asthma and their association with chronic asthma progression. Methods Hematoxylin and eosin (H&E), periodic acid-schiff (PAS), and Masson staining were performed to observe the pathological changes in the lung tissues of asthmatic mice. The respiratory microbiota was analyzed using 16S rRNA gene sequencing followed by taxonomical analysis. The cytokine levels in bronchoalveolar lavage fluid (BALF) specimens were measured. The matrix metallopeptidase 9 (MMP-9) and vascular endothelial growth factor (VEGF-A) expression levels in lung tissues were measured to detect airway remodeling in OVA-challenged mice. Results Acute allergic inflammation was the major manifestation at weeks 1 and 2 after OVA atomization stimulation, whereas at week 6 after the stimulation, airway remodeling was the most prominent observation. In the acute inflammatory stage, Pseudomonas was more abundant, whereas Staphylococcus and Cupriavidus were more abundant at the airway remodeling stage. The microbial compositions of the upper and lower respiratory tracts were similar. However, the dominant respiratory microbiota in the acute inflammatory and airway remodeling phases were different. Metagenomic functional prediction showed that the pathways significantly upregulated in the acute inflammatory phase and airway remodeling phase were different. The cytokine levels in BALF and the expression patterns of proteins associated with airway remodeling in the lung tissue were consistent with the metagenomic function results. Conclusion The dynamic changes in respiratory microbiota are closely associated with the progression of chronic asthma. Metagenomic functional prediction indicated the changes associated with acute allergic inflammation and airway remodeling.
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Affiliation(s)
- Jun Zheng
- Department of Traditional Chinese Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Qian Wu
- Department of Traditional Chinese Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Ya Zou
- Department of Emergency Medicine, Putuo Hospital, Shanghai University of Traditional Medicine, Shanghai, China
| | - Meifen Wang
- Department of Pediatrics, Sanmen People's Hospital, Taizhou, China
| | - Li He
- Department of Traditional Chinese Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Sheng Guo
- Department of Endocrine, Genetics and Metabolism, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
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22
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Mo Y, Jie X, Wang L, Ji C, Gu Y, Lu Z, Liu X. Bupi Yishen formula attenuates kidney injury in 5/6 nephrectomized rats via the tryptophan-kynurenic acid-aryl hydrocarbon receptor pathway. BMC Complement Med Ther 2021; 21:207. [PMID: 34376166 PMCID: PMC8353787 DOI: 10.1186/s12906-021-03376-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 07/06/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Bupi Yishen Formula (BYF), a patent traditional Chinese medicine (TCM) formulation, has been used in the clinical treatment of chronic kidney disease (CKD). However, the mechanism of action of BYF has not been fully elucidated. METHOD To investigate the variation in the metabolic profile in response to BYF treatment in a rat model of 5/6 nephrectomy (Nx), rats in the treatment groups received low- or high-dose BYF. At the end of the study, serum and kidney samples were collected for biochemical, pathological, and western blotting analysis. Metabolic changes in serum were analyzed by liquid chromatography-tandem mass spectrometry. RESULTS The results showed that BYF treatment could reduce kidney injury, inhibit inflammation and improve renal function in a dose-dependent manner. In total, 405 and 195 metabolites were identified in negative and positive ion modes, respectively. Metabolic pathway enrichment analysis of differential metabolites based on the Kyoto Encyclopedia of Genes and Genomes database identified 35 metabolic pathways, 3 of which were related to tryptophan metabolism. High-dose BYF reduced the level of kynurenic acid (KA) by more than 50%, while increasing melatonin 25-fold and indole-3-acetic acid twofold. Expression levels of aryl hydrocarbon receptor (AhR), Cyp1A1, and CyP1B1 were significantly reduced in the kidney tissue of rats with high-dose BYF, compared to 5/6 Nx rats. CONCLUSION BYF has a reno-protective effect against 5/6 Nx-induced CKD, which may be mediated via inhibition of the tryptophan-KA-AhR pathway.
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Affiliation(s)
- Yenan Mo
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, 520120, China
| | - Xina Jie
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, 520120, China
| | - Lixin Wang
- Nephrology Department, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 520120, China
| | - Chunlan Ji
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, 520120, China
| | - Yueyu Gu
- Nephrology Department, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 520120, China
| | - Zhaoyu Lu
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, 520120, China. .,Nephrology Department, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 520120, China.
| | - Xusheng Liu
- Nephrology Department, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 520120, China.
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23
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Hernandez P, Kim D, Haczku A. The Flying Monkeys of Ozone: Oxysterols Inactivate NLRP2 in Airway Epithelial Cells. Am J Respir Cell Mol Biol 2021; 65:461-463. [PMID: 34375162 PMCID: PMC8641850 DOI: 10.1165/rcmb.2021-0275ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
| | - Duane Kim
- UC Davis, 8789, Davis, California, United States
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24
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Darlyuk-Saadon I, Heng CKM, Bai C, Gilad N, Yu WP, Meng Huang Mok M, Wong WSF, Engelberg D. Expression of a constitutively active p38α mutant in mice causes early death, anemia, and accumulation of immunosuppressive cells. FEBS J 2021; 288:3978-3999. [PMID: 33410203 DOI: 10.1111/febs.15697] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 11/30/2020] [Accepted: 12/21/2020] [Indexed: 02/06/2023]
Abstract
The MAP kinase p38α is associated with numerous processes in eukaryotes, and its elevated activity is a prominent feature of inflammatory diseases, allergies, and aging. Since p38α is a nodal component of a complex signaling network, it is difficult to reveal exactly how p38α contributes to disparate outcomes. Identification of p38α -specific effects requires activation of p38α per se in vivo. We generated a transgenic mouse model that meets this requirement by allowing inducible and reversible expression of an intrinsically active p38α molecule (p38αD176A+F327S ). p38α's activation across all murine tissues resulted in a significant loss of body weight and death of about 40% of the mice within 17 weeks of activation, although most tissues were unaffected. Flow cytometric analysis of the lungs and bronchoalveolar lavage fluid detected an accumulation of 'debris' within the airways, suggesting impaired clearance. It also revealed increased numbers of alternatively activated alveolar macrophages and myeloid-derived suppressor cells within the lung, pointing at suppression and resolution of inflammation. Blood count suggested that mice expressing p38αD176A+F327S suffer from hemolytic anemia. Flow cytometry of bone marrow revealed a reduced number of hematopoietic stem cells and abnormalities in the erythroid lineage. Unexpectedly, p38α's substrate MAPKAPK2, mitogen-activated protein kinase-activated protein kinase 2 was downregulated in mice expressing p38αD176A+F327S , suggesting that constitutive activity of p38α may impose pathological phenotypes by downregulating downstream components, perhaps via a feedback inhibition mechanism. In summary, this new mouse model shows that induced p38α activity per se is hazardous to mouse vitality and welfare, although pathological parameters are apparent only in blood count, bone marrow, and lungs.
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Affiliation(s)
- Ilona Darlyuk-Saadon
- CREATE-NUS-HUJ, Molecular Mechanisms of Inflammatory Diseases Program, National University of Singapore, Singapore
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Chew Kiat Matthew Heng
- CREATE-NUS-HUJ, Molecular Mechanisms of Inflammatory Diseases Program, National University of Singapore, Singapore
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, Singapore
| | - Chen Bai
- CREATE-NUS-HUJ, Molecular Mechanisms of Inflammatory Diseases Program, National University of Singapore, Singapore
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nechama Gilad
- CREATE-NUS-HUJ, Molecular Mechanisms of Inflammatory Diseases Program, National University of Singapore, Singapore
- Department of Biological Chemistry, The Institute of Life Science, The Hebrew University of Jerusalem, Israel
| | - Wei-Ping Yu
- Animal Gene Editing Laboratory (AGEL), Biological Resource Centre, Agency for Science, Technology and Research (A*STAR), Singapore
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | | | - W S Fred Wong
- CREATE-NUS-HUJ, Molecular Mechanisms of Inflammatory Diseases Program, National University of Singapore, Singapore
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, Singapore
- Immunology Programme, Life Science Institute, National University of Singapore, Singapore
| | - David Engelberg
- CREATE-NUS-HUJ, Molecular Mechanisms of Inflammatory Diseases Program, National University of Singapore, Singapore
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Biological Chemistry, The Institute of Life Science, The Hebrew University of Jerusalem, Israel
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25
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Sun N, Niu Y, Zhang R, Huang Y, Wang J, Qiu W, Zhang X, Han Z, Bao J, Zhu H, Duan Y, Kan H. Ozone inhalation induces exacerbation of eosinophilic airway inflammation and Th2-skew immune response in a rat model of AR. Biomed Pharmacother 2021; 137:111261. [PMID: 33482509 DOI: 10.1016/j.biopha.2021.111261] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/30/2020] [Accepted: 01/07/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Ozone (O3) exposure elicits allergic rhinitis (AR) exacerbations by mechanisms that remain poorly understood. We used a rat model to investigate the effects of O3 on eosinophilic airway inflammation and Th2-related response. METHODS Sprague-Dawley (SD) rats were sensitized and challenged with ovalbumin (OVA) to make AR models. Three groups of AR rats were exposed respectively to 0.5, 1.0, 2.0 ppm of O3 for 2 h daily over 6 weeks consecutively and studied 24 h later. Normal rats exposed to O3 alone were used as controls. Nasal symptoms and OVA-specific immunoglobulin E (OVA-sIg E) in the serum were evaluated. Inflammatory cells in nasal lavage fluid (NLF) were classified and counted. Cytokines protein levels in NLF were assessed by ELISA. The pathological changes in the nasal mucosa were examined by histology. RESULTS The combination of allergen and repeated O3 exposure in rats induced a significant increase of the number of sneezes, nasal rubs, amount of nasal secretion and OVA-sIgE in the serum, accompanied by enhancement of eosinophils in NLF and nasal mucosa. The increase of interleukin-5 (IL-5), IL-13, Eotaxin and decrease of INF-γ protein levels in NLF were detected in AR rats after O3 inhalation. Hematoxylin and eosin staining showed disordered arrangement of the nasal mucosa epithelium and eosinophilic infiltration in a concentration-dependent manner. CONCLUSIONS O3 inhalation deteriorated symptoms in AR rats, and the possible mechanism is that ozone co-exposure could enhance the expression of Th2 cytokines, eosinophilic airway inflammation dose-dependently. The observation is helpful for us to understand the synergistic effect of O3 in the air pollution and allergen on aggravating allergic rhinitis.
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Affiliation(s)
- Na Sun
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai, China
| | - Yue Niu
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and Key Lab of Health Technology Assessment of the Ministry of Health, Fudan University, Shanghai, China
| | - Ruxin Zhang
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai, China.
| | - Yu Huang
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai, China
| | - Jinchao Wang
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai, China
| | - Wenjia Qiu
- Department of Respiratory Medicine, Huadong Hospital, Fudan University, Shanghai, China
| | - Xueyan Zhang
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai, China
| | - Zhijin Han
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai, China
| | - Jing Bao
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai, China
| | - Huili Zhu
- Department of Respiratory Medicine, Huadong Hospital, Fudan University, Shanghai, China
| | - Yusen Duan
- Shanghai Environmental Monitoring Center, Shanghai, China
| | - Haidong Kan
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education and Key Lab of Health Technology Assessment of the Ministry of Health, Fudan University, Shanghai, China
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26
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Enweasor C, Flayer CH, Haczku A. Ozone-Induced Oxidative Stress, Neutrophilic Airway Inflammation, and Glucocorticoid Resistance in Asthma. Front Immunol 2021; 12:631092. [PMID: 33717165 PMCID: PMC7952990 DOI: 10.3389/fimmu.2021.631092] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 01/18/2021] [Indexed: 12/15/2022] Open
Abstract
Despite recent advances in using biologicals that target Th2 pathways, glucocorticoids form the mainstay of asthma treatment. Asthma morbidity and mortality remain high due to the wide variability of treatment responsiveness and complex clinical phenotypes driven by distinct underlying mechanisms. Emerging evidence suggests that inhalation of the toxic air pollutant, ozone, worsens asthma by impairing glucocorticoid responsiveness. This review discusses the role of oxidative stress in glucocorticoid resistance in asthma. The underlying mechanisms point to a central role of oxidative stress pathways. The primary data source for this review consisted of peer-reviewed publications on the impact of ozone on airway inflammation and glucocorticoid responsiveness indexed in PubMed. Our main search strategy focused on cross-referencing "asthma and glucocorticoid resistance" against "ozone, oxidative stress, alarmins, innate lymphoid, NK and γδ T cells, dendritic cells and alveolar type II epithelial cells, glucocorticoid receptor and transcription factors". Recent work was placed in the context from articles in the last 10 years and older seminal research papers and comprehensive reviews. We excluded papers that did not focus on respiratory injury in the setting of oxidative stress. The pathways discussed here have however wide clinical implications to pathologies associated with inflammation and oxidative stress and in which glucocorticoid treatment is essential.
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Affiliation(s)
- Chioma Enweasor
- UC Davis Lung Center, University of California, Davis, CA, United States
| | - Cameron H. Flayer
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Angela Haczku
- UC Davis Lung Center, University of California, Davis, CA, United States
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27
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Liu JR, Miao H, Deng DQ, Vaziri ND, Li P, Zhao YY. Gut microbiota-derived tryptophan metabolism mediates renal fibrosis by aryl hydrocarbon receptor signaling activation. Cell Mol Life Sci 2021; 78:909-922. [PMID: 32965514 PMCID: PMC11073292 DOI: 10.1007/s00018-020-03645-1] [Citation(s) in RCA: 94] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 08/31/2020] [Accepted: 09/12/2020] [Indexed: 02/06/2023]
Abstract
The gut microbiota has a crucial effect on regulating the intestinal mucosal immunity and maintaining intestinal homeostasis both in health and in disease state. Many effects are mediated by gut microbiota-derived metabolites and tryptophan, an essential aromatic amino acid, is considered important among many metabolites in the crosstalk between gut microbiota and the host. Kynurenine, serotonin, and indole derivatives are derived from the three major tryptophan metabolism pathways modulated by gut microbiota directly or indirectly. Aryl hydrocarbon receptor (AHR) is a cytoplasmic ligand-activated transcription factor involved in multiple cellular processes. Tryptophan metabolites as ligands can activate AHR signaling in various diseases such as inflammation, oxidative stress injury, cancer, aging-related diseases, cardiovascular diseases (CVD), and chronic kidney diseases (CKD). Accumulated uremic toxins in the body fluids of CKD patients activate AHR and affect disease progression. In this review, we will elucidate the relationship between gut microbiota-derived uremic toxins by tryptophan metabolism and AHR activation in CKD and its complications. This review will provide therapeutic avenues for targeting CKD and concurrently present challenges and opportunities for designing new therapeutic strategies against renal fibrosis.
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Affiliation(s)
- Jing-Ru Liu
- Faculty of Life Science, & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, 710069, Shaanxi, China
| | - Hua Miao
- Faculty of Life Science, & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, 710069, Shaanxi, China
| | - De-Qiang Deng
- Department of Nephrology, Urumqi Chinese Medicine Hospital, No. 590 Fridenly South Road, Urumqi, 830000, Xinjiang Uygur Autonomous Region, China
| | - Nosratola D Vaziri
- Division of Nephrology and Hypertension, School of Medicine, University of California Irvine, Irvine, CA, 92897, USA
| | - Ping Li
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Department of Nephrology, Institute of Clinical Medical Science, China-Japan Friendship Hospital, Beijing, 100029, China.
| | - Ying-Yong Zhao
- Faculty of Life Science, & Medicine, Northwest University, No. 229 Taibai North Road, Xi'an, 710069, Shaanxi, China.
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28
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Lee JW, Ryu HW, Kim DY, Kwon OK, Jang HJ, Kwon HJ, Kim SY, Lee SU, Kim SM, Oh ES, Ahn HI, Ahn KS, Oh SR. Biflavonoid-rich fraction from Daphne pseudomezereum var. koreana Hamaya exerts anti-inflammatory effect in an experimental animal model of allergic asthma. JOURNAL OF ETHNOPHARMACOLOGY 2021; 265:113386. [PMID: 32920132 DOI: 10.1016/j.jep.2020.113386] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 08/28/2020] [Accepted: 09/04/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Daphne pseudomezereum var. koreana Hamaya is distributed in the Gangwon-do of South Korea and is traditionally used to treat chronic inflammatory diseases, including rheumatoid arthritis. AIM OF THE STUDY We investigated the anti-inflammatory effect of biflavonoid-rich fraction (BF) obtained from an extract of D. pseudomezereum leaves on lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages and mouse model of ovalbumin (OVA)-induced allergic asthma. MATERIALS AND METHODS Neochamaejasmin B (NB) and chamaejasmin D (CD) were spectroscopically characterized as major components of BF obtained from the leaves of D. pseudomezereum. RAW264.7 cells pretreated with NB, CD and BF and activated by LPS (500 ng/ml) were used to assess the anti-inflammatory effects of these materials in vitro. To evaluate the protective effect of BF on allergic asthma, female BALB/c mice were sensitized to OVA by intraperitoneal (i.p.) injection and treated with BF by oral administration (15 or 30 mg/kg). RESULTS Pretreatment with BF inhibited LPS-stimulated nitric oxide (NO), TNF-α and IL-6, and led to upregulation of heme oxygenase-1 (HO-1) in RAW264.7 macrophages. Orally administered BF significantly inhibited the recruitment of eosinophils and the production of IL-5, IL-6, IL-13 and MCP-1 as judged by the analysis of BALF from OVA-induced asthma animal model. BF also decreased the levels of IgE in the serum of asthmatic mice. BF suppressed the influx of inflammatory cells into nearby airways and the hypersecretion of mucus by the airway epithelium of asthmatic mice. In addition, the increase in Penh in asthmatic mice was reduced by BF administration. Furthermore, BF led to Nrf2 activation and HO-1 induction in the lungs of mice. CONCLUSIONS These data have shown the anti-asthmatic effects of BF, and therefore we expect that BF may be a potential candidate as a natural drug/nutraceutical for the prevention and treatment of allergic asthma.
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Affiliation(s)
- Jae-Won Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do, 28116, Republic of Korea.
| | - Hyung Won Ryu
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do, 28116, Republic of Korea.
| | - Doo-Young Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do, 28116, Republic of Korea.
| | - Ok-Kyoung Kwon
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do, 28116, Republic of Korea.
| | - Hyun-Jae Jang
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do, 28116, Republic of Korea.
| | - Hyuk Joon Kwon
- National Institute of Biological Resources, Environmental Research Complex, Gyoungseo-dong, Seo-gu, Incheon, 22689, Republic of Korea.
| | - Soo-Young Kim
- National Institute of Biological Resources, Environmental Research Complex, Gyoungseo-dong, Seo-gu, Incheon, 22689, Republic of Korea.
| | - Su Ui Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do, 28116, Republic of Korea.
| | - Sung-Man Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do, 28116, Republic of Korea.
| | - Eun Sol Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do, 28116, Republic of Korea.
| | - Hye In Ahn
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do, 28116, Republic of Korea.
| | - Kyoung-Seop Ahn
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do, 28116, Republic of Korea.
| | - Sei-Ryang Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do, 28116, Republic of Korea.
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Ogino H, Okuno T, Murano K, Ueno H. Naturally Oxidized Olive Oil Promotes Active Cutaneous Anaphylaxis and Th2 Cytokine Production. Biol Pharm Bull 2021; 44:838-843. [PMID: 34078816 DOI: 10.1248/bpb.b21-00065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The excessive ingestion of oxidized dietary oils may exacerbate some allergic diseases. We previously reported that oxidized olive oil exacerbates active cutaneous anaphylaxis (ACA), one of the immediate allergic reactions. This study was conducted to clarify the effects of oxidized olive oil on the T cell response during ACA. BALB/c female mice were orally administered naturally oxidized olive oil once every 2 d for 2 weeks after ovalbumin (OVA)/aluminum hydroxide gel sensitization, after which ACA was elicited by intracutaneous administration of OVA into the ear auricles. Compared with fresh olive oil, oxidized olive oil administration increased the antigen-specific immunoglobulin E (IgE) antibody titer 2 weeks after OVA-sensitization and vascular hyperpermeability increased due to ACA. In the oxidized olive oil-administered mice, the mRNA expression levels of T-helper 2 (Th2) cytokines, interleukin (IL)-4, -5, -6, and -10, in the lymph nodes increased, as did the proportion of cluster designation (CD)3+CD4+ cells in the spleen and lymph nodes. In CD3+CD4+ cells, the mRNA expression levels of IL-4 and GATA-binding protein 3 (GATA3), the master regulator of Th2, were higher in the oxidized olive oil-group. Antigen-stimulated specific IL-4 production was promoted in CD3+CD4+ cells of oxidized olive oil-administered mice. This suggests that oxidized olive oil exacerbates ACA by promoting Th2 dominance in immediate allergic diseases.
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Affiliation(s)
- Hirofumi Ogino
- Department of Public Health & Preventive Pharmacology, Faculty of Pharmaceutical Sciences, Setsunan University
| | - Tomofumi Okuno
- Department of Public Health & Preventive Pharmacology, Faculty of Pharmaceutical Sciences, Setsunan University
| | - Koichi Murano
- Division of Hygienic Chemistry, Osaka Institute of Public Health
| | - Hitoshi Ueno
- Department of Public Health & Preventive Pharmacology, Faculty of Pharmaceutical Sciences, Setsunan University
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Hao Z, Song WJ. Network pharmacology study of yuebi plus banxia decoction in treating asthma. WORLD JOURNAL OF TRADITIONAL CHINESE MEDICINE 2021. [DOI: 10.4103/wjtcm.wjtcm_18_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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31
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Oxidation specific epitopes in asthma: New possibilities for treatment. Int J Biochem Cell Biol 2020; 129:105864. [PMID: 33069787 DOI: 10.1016/j.biocel.2020.105864] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/30/2020] [Accepted: 10/07/2020] [Indexed: 11/20/2022]
Abstract
Oxidative stress is an important feature of asthma pathophysiology that is not currently targeted by any of our frontline treatments. Reactive oxygen species, generated during times of heightened oxidative stress, can damage cellular lipids causing the production of oxidation specific epitopes (OSE). OSEs are elevated in chronic inflammatory diseases and promoting their clearance by the body, through pattern recognition receptors and IgM antibodies, prevents and resolves inflammation and tissue damage in animal models. Current research on OSEs in asthma is limited. Although they are present in the lungs of people with asthma during periods of exacerbation or allergen exposure, we do not know if they are linked with disease pathobiology. This article reviews our current understanding of OSEs in asthma and explores whether targeting OSE clearance mechanisms may be a novel therapeutic intervention for asthma.
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32
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Hong X, Jiang F, Li Y, Fang L, Qian Z, Chen H, Kong R. Treatment with 5-methoxytryptophan attenuates microglia-induced neuroinflammation in spinal cord trauma. Int Immunopharmacol 2020; 88:106988. [PMID: 33182019 DOI: 10.1016/j.intimp.2020.106988] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/21/2020] [Accepted: 09/07/2020] [Indexed: 12/17/2022]
Abstract
Neuroinflammation following spinal cord injury (SCI) leads to extensive secondary damage in neural tissue adjacent to the primary lesion foci. 5-Methoxytryptophan (5MTP) is a metabolite of tryptophan and proven to play a protective role in several inflammation-related diseases. However, the specific efficacy and molecular mechanism of 5MTP in SCI remains unknown. Here, we aimed to investigate the anti-inflammatory role of 5MTP in microglia-induced neuroinflammation and its therapeutic effect in SCI. To assess the effect of 5MTP in neuroinflammation, we used lipopolysaccharide (LPS) to stimulate microglia in vitro and detected the microglial phenotype using immunofluorescence staining, the inflammatory-related pathway using western blotting, and pro-inflammatory cytokines using ELISA and immunofluorescence. To explore the therapeutic effect of 5MTP in SCI, we performed contusion of the spinal cord in mice and measured the levels of neuroinflammation, glial accumulation, histological and functional recovery using ELISA, immunofluorescence staining, immunohistochemical staining, hematoxylin-eosin staining, Nissl staining and the Basso Mouse Scale, respectively. We found that treatment with 5MTP contributed to decreased activation of pro-inflammatory microglia and reduced the generation of inflammatory cytokines, including TNF-α, IL-1β, IL-6 and IL-18, by negative regulation of the p38-MAPK signaling pathway and NLRP3/caspase-1 expression. In vivo, administration of 5MTP showed mitigatory neuroinflammation levels associated with alleviated glial scar in SCI mice; hence, the neurological integrity and the neuronal survival, as well as locomotor function, were improved following 5MTP administration. 5MTP, as a novel anti-neuroinflammatory reagent, can attenuate activated microglia-induced secondary injury following SCI, and therefore, shows promise as a potential compound for application in a clinical trial for SCI therapy.
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Affiliation(s)
- Xin Hong
- Department of Orthopedics, Zhongda Hospital of Southeast University, Nanjing, China
| | - Fan Jiang
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - You Li
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Le Fang
- Department of Critical Care Medicine, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zhanyang Qian
- Department of Orthopedics, Zhongda Hospital of Southeast University, Nanjing, China.
| | - Hongtao Chen
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - Renyi Kong
- Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
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Naclerio R, Ansotegui IJ, Bousquet J, Canonica GW, D'Amato G, Rosario N, Pawankar R, Peden D, Bergmann KC, Bielory L, Caraballo L, Cecchi L, Cepeda SAM, Chong Neto HJ, Galán C, Gonzalez Diaz SN, Idriss S, Popov T, Ramon GD, Ridolo E, Rottem M, Songnuan W, Rouadi P. International expert consensus on the management of allergic rhinitis (AR) aggravated by air pollutants: Impact of air pollution on patients with AR: Current knowledge and future strategies. World Allergy Organ J 2020; 13:100106. [PMID: 32256939 PMCID: PMC7132263 DOI: 10.1016/j.waojou.2020.100106] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 01/17/2020] [Accepted: 01/23/2020] [Indexed: 02/07/2023] Open
Abstract
Allergic rhinitis affects the quality of life of millions of people worldwide. Air pollution not only causes morbidity, but nearly 3 million people per year die from unhealthy indoor air exposure. Furthermore, allergic rhinitis and air pollution interact. This report summarizes the discussion of an International Expert Consensus on the management of allergic rhinitis aggravated by air pollution. The report begins with a review of indoor and outdoor air pollutants followed by epidemiologic evidence showing the impact of air pollution and climate change on the upper airway and allergic rhinitis. Mechanisms, particularly oxidative stress, potentially explaining the interactions between air pollution and allergic rhinitis are discussed. Treatment for the management of allergic rhinitis aggravated by air pollution primarily involves treating allergic rhinitis by guidelines and reducing exposure to pollutants. Fexofenadine a non-sedating oral antihistamine improves AR symptoms aggravated by air pollution. However, more efficacy studies on other pharmacological therapy of coexisting AR and air pollution are currently lacking.
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Key Words
- AER, Allergic eosinophilic rhinitis
- AP, Activator protein
- AR, Allergic rhinitis
- ARE, Antioxidant response element
- Air pollutants
- Air pollution
- Allergic rhinitis
- Antioxidant enzymes
- CFS, Chronic fatigue syndrome
- CO, Carbon monoxide
- COPD, Chronic obstructive pulmonary disease
- Climate change
- DAMP, Damage-associated molecular patterns
- DEP, Diesel exhaust particles
- ECAT, Elemental carbon attributable to traffic
- ECP, Eosinophil cationic protein
- GSH-Px, Glutathione peroxidase
- HDM, House dust mites
- HEPA, High efficiency particulate air
- HO, Hemeoxygenase
- HVAC, Heating, ventilation and air conditioning
- IAP, Indoor air pollution
- IAQ, Indoor air quality
- INS, Intranasal steroids
- Indoor air quality
- LDH, Lactate dehydrogenase
- MCP, Monocyte chemotactic protein
- MSQPCR, Mold specific quantitative PCR
- NAR, Non allergic rhinitis
- NF-κβ, Nuclear factor kappa β
- NO2, Nitrogen dioxide
- NOx, Nitric oxides
- Nrf2, Nuclear factor erythroid-2 related factor
- O3, Ozone
- OAP, Outdoor air pollution
- Occupational rhinitis
- Oxidative stress
- PAMP, Pathogen-associated molecular patterns
- PM, Particulate matter
- PON, Paraoxonase
- RNS, Reactive nitrosative species
- ROS, Reactive oxygen species
- SO2, Sulphur dioxide
- SOD, Superoxide dismutase
- TLR, Toll like receptor
- TNF, Tumor necrosis factor
- TOS, Total oxidative status
- TRAP, Traffic related air pollutants
- UFP, Ultra-fine particles
- VOCs, Volatile organic compound
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Affiliation(s)
| | | | - Jean Bousquet
- INSERM U 1168, VIMA: Ageing and Chronic Diseases Epidemiological and Public Health Approaches, Villejuif, France
- University Versailles St-Quentin-en-Yvelines, France
- Allergy-Centre-Charité, Charité–Universita¨tsmedizin Berlin, Berlin, Germany
| | | | - Gennaro D'Amato
- Division of Respiratory and Allergic Diseases, High Specialty Hospital A. Cardarelli, Napoli, Italy; School of Specialization in Respiratory Diseases University Federico II Naples, Italy
| | - Nelson Rosario
- Pediatric Respiratory Medicine Division, Complexo Hospital de Clinicas, UFPR, Curitiba, Brazil
| | - Ruby Pawankar
- Dept. of Pediatrics, Nippon Medical School, Tokyo, Japan
| | - David Peden
- UNC Center for Environmental Medicine, Asthma, and Lung Biology; Division of Allergy, Immunology and Rheumatology, Dpt. of Pediatrics UNS School of Medicine, USA
| | | | - Leonard Bielory
- Medicine & Ophthalmology Hackensack Meridian School of Medicine at Seton Hall University Nutley, New Jersey, USA
| | - Luis Caraballo
- Institute for Immunological Research, University of Cartagena, Cartagena de Indias, Colombia
| | - Lorenzo Cecchi
- Centre de Bioclimatology, University de Florence, Florence, Italy
- SOS Allergy and Immunology, Prato - USL Toscana Centro, Italy
| | - S. Alfonso M. Cepeda
- Fundación Hospital Universitario Metropolitano de Barranquilla, Barranquilla, Colombia
| | | | - Carmen Galán
- Department of Botany, Ecology and Plant Physiology, University of Córdoba, Spain
| | | | - Samar Idriss
- Department of Otolaryngology- Head and Neck Surgery, Eye and Ear University Hospital, Beirut, Lebanon
| | - Todor Popov
- Alexander's University Hospital Clinic of Allergy & Asthma, Bulgaria
| | - German D. Ramon
- Alergia e Inmunología, Hospital Italiano Regional del Sur, Bahía Blanca-Buenos Aires, Argentina
| | - Erminia Ridolo
- Department of Clinical and Experimental Medicine, Università; di Parma, Parma, Italy
| | - Menachem Rottem
- Allergy Asthma and Immunology, Emek Medical Center, Afula, Israel
- Rappaport Faculty of Medicine Technion, Israel Institute of Technology, Haifa, Israel
| | - Wisuwat Songnuan
- Department of Plant Science, Faculty of Science, Mahidol University, Bangkok, Thailand
- Systems Biology of Diseases Research Unit, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Philip Rouadi
- Department of Otolaryngology- Head and Neck Surgery, Eye and Ear University Hospital, Beirut, Lebanon
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Duan J, Xie J, Deng T, Xie X, Liu H, Li B, Chen M. Exposure to both formaldehyde and high relative humidity exacerbates allergic asthma by activating the TRPV4-p38 MAPK pathway in Balb/c mice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 256:113375. [PMID: 31662264 DOI: 10.1016/j.envpol.2019.113375] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 09/20/2019] [Accepted: 10/09/2019] [Indexed: 06/10/2023]
Abstract
Some studies have indicated that formaldehyde, a ubiquitous environmental pollutant, can induce or aggravate allergic asthma. Epidemiological studies have also shown that the relative humidity indoors may be an independent and a key factor associated with the aggravation of allergic asthma. However, the synergy of humidity and formaldehyde on allergic asthma and the mechanism underlying this effect remain largely unknown. In this study, we aim to determine the effect of high relative humidity and/or formaldehyde exposure on allergic asthma and explore the underlying mechanisms. Male Balb/c mice were modeled with ovalbumin (OVA) and exposure to 0.5 mg/m3 formaldehyde and/or different relative humidity (60%/75%/90%). Histopathological changes, pulmonary function, Th1/Th2 balance, the status of mucus hypersecretion and the levels of inflammatory factors were detected to assess the exacerbation of allergic asthma. The levels of the transient receptor potential vanilloid 4 (TRPV4), calcium ion and the activation of p38 mitogen-activated protein kinases (p38 MAPK) were detected to explore the underlying mechanisms. The results showed that exposure to high relative humidity or to 0.5 mg/m3 formaldehyde alone had a slight, but not significant, affect on allergic asthma. However, the pathological response and airway hyperresponsiveness (AHR) were greatly aggravated by simultaneous exposure to 0.5 mg/m3 formaldehyde and 90% relative humidity. Blocking TRPV4or p38 MAPK using HC-067047 and SB203580 respectively, effectively alleviated the exacerbation of allergic asthma induced by this simultaneous exposure to formaldehyde and high relative humidity. The results show that when formaldehyde and high relative humidity are present this can enhance the activation of the TRPV4 ion channel in the lung leading to the aggravation of the p38 MAPK activation, resulting in the exacerbation of inflammation and hypersecretion of mucus in the airways.
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Affiliation(s)
- Jiufei Duan
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Jing Xie
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Ting Deng
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Xiaoman Xie
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China
| | - Hong Liu
- Joint International Research Laboratory of Green Buildings and Built Environments (Ministry of Education), Chongqing University, Chongqing 400045, China
| | - Baizhan Li
- Joint International Research Laboratory of Green Buildings and Built Environments (Ministry of Education), Chongqing University, Chongqing 400045, China
| | - Mingqing Chen
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, Hubei, China.
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Mumby S, Chung KF, Adcock IM. Transcriptional Effects of Ozone and Impact on Airway Inflammation. Front Immunol 2019; 10:1610. [PMID: 31354743 PMCID: PMC6635463 DOI: 10.3389/fimmu.2019.01610] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 06/27/2019] [Indexed: 12/24/2022] Open
Abstract
Epidemiological and challenge studies in healthy subjects and in individuals with asthma highlight the health impact of environmental ozone even at levels considered safe. Acute ozone exposure in man results in sputum neutrophilia in 30% of subjects particularly young children, females, and those with ongoing cardiopulmonary disease. This may be associated with systemic inflammation although not in all cases. Chronic exposure amplifies these effects and can result in the formation of asthma-like symptoms and immunopathology. Asthmatic patients who respond to ozone (responders) induce a greater number of genes in bronchoalveolar (BAL) macrophages than healthy responders with up-regulation of inflammatory and immune pathways under the control of cytokines and chemokines and the enhanced expression of remodeling and repair programmes including those associated with protease imbalances and cell-cell adhesion. These pathways are under the control of several key transcription regulatory factors including nuclear factor (NF)-κB, anti-oxidant factors such as nuclear factor (erythroid-derived 2)-like 2 NRF2, the p38 mitogen activated protein kinase (MAPK), and priming of the immune system by up-regulating toll-like receptor (TLR) expression. Murine and cellular models of acute and chronic ozone exposure recapitulate the inflammatory effects seen in humans and enable the elucidation of key transcriptional pathways. These studies emphasize the importance of distinct transcriptional networks in driving the detrimental effects of ozone. Studies indicate the critical role of mediators including IL-1, IL-17, and IL-33 in driving ozone effects on airway inflammation, remodeling and hyperresponsiveness. Transcription analysis and proof of mechanisms studies will enable the development of drugs to ameliorate the effects of ozone exposure in susceptible individuals.
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Affiliation(s)
- Sharon Mumby
- Respiratory Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Kian Fan Chung
- Respiratory Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Ian M Adcock
- Respiratory Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
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36
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Ogino H, Okuno T, Murano K, Arakawa T, Ueno H. Naturally oxidized olive oil exacerbates contact hypersensitivity by promoting differentiation into effector T cells and increasing antigen-specific IFN-γ production. FOOD AGR IMMUNOL 2019. [DOI: 10.1080/09540105.2018.1547687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- Hirofumi Ogino
- Department of Public Health & Preventive Pharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Japan
| | - Tomofumi Okuno
- Department of Public Health & Preventive Pharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Japan
| | - Koichi Murano
- Division of Hygienic Chemistry, Osaka Institute of Public Health, Tennoji-ku, Japan
| | - Tomohiro Arakawa
- Department of Public Health & Preventive Pharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Japan
| | - Hitoshi Ueno
- Department of Public Health & Preventive Pharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Japan
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