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Tang L, Chen B, Wang B, Xu J, Yan H, Shan Y, Zhao X. Mediation of FOXA2/IL-6/IL-6R/STAT3 signaling pathway mediates benzo[a]pyrene-induced airway epithelial mesenchymal transformation in asthma. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 357:124384. [PMID: 38901818 DOI: 10.1016/j.envpol.2024.124384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/30/2024] [Accepted: 06/16/2024] [Indexed: 06/22/2024]
Abstract
Benzo [a]pyrene (BaP), a toxic pollutant, increases the incidence and severity of asthma. However, the molecular mechanisms underlying the effects of BaP in asthma remain unclear. In terms of research methods, we used BaP to intervene in the animal model of asthma and the human bronchial epithelial (16HBE) cells, and the involved mechanisms were found from the injury, inflammation, and airway epithelial to mesenchymal transition (EMT) in asthma. We also constructed small interfering RNAs and overexpression plasmids to knockdown/overexpress IL-6R and FOXA2 in 16HBE cells and a serotype 9 adeno-associated viral vector for lung tissue overexpression of FOXA2 in mice to determine the mechanism of action of BaP-exacerbated asthma airway EMT. We observed that BaP aggravated inflammatory cell infiltration into the lungs, reduced the Penh value, increased collagen fibres in the lung tissue, and increased serum IgE levels in asthmatic mice. After BaP intervention, the expression of FOXA2 in the lung tissue of asthmatic mice decreased, the production and secretion of IL-6 were stimulated, and STAT3 phosphorylation and nuclear translocation increased, leading to changes in EMT markers. However, EMT decreased after increasing FOXA2 expression and decreasing that of IL-6R and was further enhanced after low FOXA2 expression. Our results revealed that BaP exacerbated airway epithelial cell injury and interfered with FOXA2, activating the IL-6/IL-6R/STAT3 signaling pathway to promote airway EMT in asthma. These findings provide toxicological evidence for the mechanism underlying the contribution of BaP to the increased incidence of asthma and its exacerbations.
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Affiliation(s)
- Lingling Tang
- School of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China
| | - Bailei Chen
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China
| | - Bohan Wang
- Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210004, China
| | - Jing Xu
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China
| | - Hua Yan
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China
| | - Yiwen Shan
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China
| | - Xia Zhao
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Medical Metabolomics Center, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China; Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210004, China.
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Liu TT, Qi JL, Yin J, Gao Q, Xu W, Qiao JJ, Yin P, Zhou MG, Shen KL. Asthma mortality among children and adolescents in China, 2008-2018. World J Pediatr 2022; 18:598-606. [PMID: 35536454 DOI: 10.1007/s12519-022-00548-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 03/16/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Asthma mortality among children and adolescents at the national level in China was unreported. The aim of this study was to analyze the mortality of asthma among children and adolescents in China using a nationally representative database. METHODS This was a descriptive study using data from the Disease Surveillance Points (DSPs) system. All asthma-related deaths among children and adolescents aged 0-19 years occurring in DSPs across China from 2008 to 2018 were included. Multilevel Poisson regression models were used to compute the total, age-, gender-, region- and residence-specific asthma mortality rates and to investigate the significance of trends and factors associated with asthma mortality. Data from the National Bureau of Statistics were used to estimate the national asthma deaths. RESULTS Total asthma mortality rate among Chinese children and adolescents fluctuated between 0.020 (0.009, 0.045) and 0.059 (0.025, 0.137) per 100,000 and showed an overall downward trend (RR, 0.909; 95% CI 0.854-0.968) during the study period (2008-2018). Asthma mortality rate was higher in the western China (RR 2.356, 95% CI 1.513, 3.669) and varied over a ninefold range among DSPs in China. The estimated number of deaths decreased by 51.38% from 2008 (n = 148; 95% CI 58,379) to 2018 (n = 71; 95% CI 34, 109). CONCLUSIONS Asthma mortality rate among children and adolescents in China was at a low level compared to rates worldwide and decreased significantly from 2008 to 2018. Compared with most countries in the world, the number of asthma deaths was higher in China.
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Affiliation(s)
- Ting-Ting Liu
- National Clinical Research Center of Respiratory Diseases, Respiratory Department, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nan-Li-Shi Road, Beijing, 100045, China
| | - Jin-Lei Qi
- National Center for Chronic and Non-Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 100050, China
| | - Ju Yin
- National Clinical Research Center of Respiratory Diseases, Respiratory Department, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nan-Li-Shi Road, Beijing, 100045, China
| | - Qi Gao
- National Clinical Research Center of Respiratory Diseases, Respiratory Department, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nan-Li-Shi Road, Beijing, 100045, China
| | - Wei Xu
- National Clinical Research Center of Respiratory Diseases, Allergy Department, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Jing-Jing Qiao
- National Clinical Research Center of Respiratory Diseases, Respiratory Department, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nan-Li-Shi Road, Beijing, 100045, China
| | - Peng Yin
- National Center for Chronic and Non-Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 100050, China
| | - Mai-Geng Zhou
- National Center for Chronic and Non-Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 100050, China
| | - Kun-Ling Shen
- National Clinical Research Center of Respiratory Diseases, Respiratory Department, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nan-Li-Shi Road, Beijing, 100045, China.
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Association between bronchopulmonary dysplasia and early respiratory morbidity in children with respiratory distress syndrome: a case-control study using nationwide data. Sci Rep 2022; 12:7578. [PMID: 35534599 PMCID: PMC9085740 DOI: 10.1038/s41598-022-11657-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 04/19/2022] [Indexed: 11/29/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) can cause respiratory morbidity beyond the neonatal period. We aimed to analyze the association of BPD on childhood lower respiratory illness (LRI) and asthma among patients diagnosed with respiratory distress syndrome (RDS). This case–control study analyzed data between 2002 and 2015 from a nationwide database. We included 55,066 children with RDS. Two-year LRI and asthma at ages 3 and 5 were assessed. Readmission for LRIs within 2 years of birth occurred in 53.9% and 37.9% of the BPD (n = 9470) and non-BPD (n = 45,596) cases, respectively. In the BPD group, the median number of hospitalizations, mechanical ventilation and oxygen use rates were significantly higher, while the hospitalization duration was significantly longer (P < 0.001 for all). The relative risk of BPD was 1.42 (1.39–1.45) on total readmission and 6.53 (5.96–7.15) on intensive care unit readmission. Asthma prevalence was significantly higher in BPD group (57.6% vs. 48.9% at age 3 and 44.3% vs. 38.2% at age 5, P < 0.001). In children with RDS, BPD could affect repetitive and worse LRI as an independent risk factor for respiratory morbidity during the first 2 years of life. BPD may also be a crucial risk factor for asthma in preschoolers.
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Xing Y, Wong GWK. Environmental Influences and Allergic Diseases in the Asia-Pacific Region: What Will Happen in Next 30 Years? ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2022; 14:21-39. [PMID: 34983105 PMCID: PMC8724831 DOI: 10.4168/aair.2022.14.1.21] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 11/14/2021] [Indexed: 12/22/2022]
Abstract
Asia-Pacific is a populous region with remarkable variations in socioeconomic development and environmental exposure among countries. The prevalence rates of asthma and allergic rhinitis appear to have recently reached a plateau in Western countries, whereas they are still increasing in many Asian countries. Given the large population in Asia, even a slight increase in the prevalence rate will translate into an overwhelming number of patients. To reduce the magnitude of the increase in allergic diseases in next few decades in Asia, we must understand the potential factors leading to the occurrence of these disorders and the development of potential preventive strategies. The etiology of allergic disorders is likely due to complex interactions among genetic, epigenetic, and environmental factors for the manifestations of inappropriate immune responses. As urbanization and industrialization inevitably progress in Asia, there is an urgent need to curtail the upcoming waves of the allergy epidemic. Potentially modifiable risk exposure, such as air pollution, should be minimized through timely implementation of effective legislations. Meanwhile, re-introduction of protective factors that were once part of the traditional farming lifestyle might give new insight into primary prevention of allergy.
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Affiliation(s)
- Yuhan Xing
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Gary Wing-Kin Wong
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
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Kiook B, Jong-Tae P, Kyeongmin K. Association of Urinary Bisphenols Concentration with Asthma in Korean Adolescents: Data from the Third Korean National Environmental Health Survey. TOXICS 2021; 9:toxics9110291. [PMID: 34822682 PMCID: PMC8621547 DOI: 10.3390/toxics9110291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 10/17/2021] [Accepted: 10/29/2021] [Indexed: 11/28/2022]
Abstract
The effects of bisphenol A (BPA) on asthma have been reported in various in vitro, animal, and human epidemiologic studies. However, epidemiological studies on the effects of bisphenol S (BPS) and bisphenol F (BPF), which are substitutes of BPA, on asthma are lacking. The purpose of this study was to identify the association between BPA, BPS, and BPF and asthma. An asthma-related questionnaire; urinary BPA, BPS, BPF; and the possible confounders were analyzed among 922 adolescents aged 12–17 years who participated in the Korean National Environmental Health Survey 2016. In males, urinary BPA, BPS, and BPF did not show a significant relationship with the lifetime prevalence of asthma. In females, urinary BPS was higher in the asthma group (p < 0.01). High urinary BPS showed a significant relationship with a high odds ratio (OR) of lifetime asthma prevalence in the model adjusted for possible confounders (p < 0.05). High urinary BPS was particularly associated with an increase in the OR of asthma diagnosed after the age of 60 months (p < 0.01). Urinary BPS was significantly associated with asthma diagnosis, especially after the age of 60 months, among Korean adolescent females.
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