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Milara J, Díaz-Platas L, Contreras S, Ribera P, Roger I, Ballester B, Montero P, Cogolludo Á, Morcillo E, Cortijo J. MUC1 deficiency mediates corticosteroid resistance in chronic obstructive pulmonary disease. Respir Res 2018; 19:226. [PMID: 30458870 PMCID: PMC6247701 DOI: 10.1186/s12931-018-0927-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 11/01/2018] [Indexed: 01/10/2023] Open
Abstract
Background Lung inflammation in COPD is poorly controlled by inhaled corticosteroids (ICS). Strategies to improve ICS efficacy or the search of biomarkers who may select those patients candidates to receive ICS in COPD are needed. Recent data indicate that MUC1 cytoplasmic tail (CT) membrane mucin can mediate corticosteroid efficacy in chronic rhinosinusitis. The objective of this work was to analyze the previously unexplored role of MUC1 on corticosteroid efficacy in COPD in vitro and in vivo models. Methods MUC1-CT expression was measured by real time PCR, western blot, immunohistochemistry and immunofluorescence. The inflammatory mediators IL-8, MMP9, GM-CSF and MIP3α were measured by ELISA. The effect of MUC1 on inflammation and corticosteroid anti-inflammatory effects was measured using cell siRNA in vitro and Muc1-KO in vivo animal models. Results MUC1-CT expression was downregulated in lung tissue, bronchial epithelial cells and lung neutrophils from smokers (n = 11) and COPD (n = 11) patients compared with healthy subjects (n = 10). MUC1 was correlated with FEV1% (ρ = 0.7479; p < 0.0001) in smokers and COPD patients. Cigarette smoke extract (CSE) decreased the expression of MUC1 and induced corticosteroid resistance in human primary bronchial epithelial cells and human neutrophils. MUC1 Gene silencing using siRNA-MUC1 impaired the anti-inflammatory effects of dexamethasone and reduced glucocorticoid response element activation. Dexamethasone promoted glucocorticoid receptor alpha (GRα) and MUC1-CT nuclear translocation and co-localization that was inhibited by CSE. Lung function decline and inflammation induced by lipopolysaccharide and cigarette smoke in Muc1 KO mice was resistant to dexamethasone. Conclusions These results confirm a role for MUC1-CT mediating corticosteroid efficacy in COPD. Electronic supplementary material The online version of this article (10.1186/s12931-018-0927-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Javier Milara
- Department of Pharmacology, Faculty of Medicine, Jaume I University, Castellón de la Plana, Spain. .,Pharmacy Unit, University General Hospital Consortium, Valencia, Spain. .,CIBERES, Health Institute Carlos III, Valencia, Spain. .,Unidad de Investigación Clínica, Consorcio Hospital General Universitario, Avenida tres cruces s/n, E-46014, Valencia, Spain.
| | - Lucía Díaz-Platas
- Unidade Radiofármacos PET, GALARIA, Santiago de Compostela, A Coruña, Spain
| | - Sonia Contreras
- Department of Pharmacology, Faculty of Medicine, University of Valencia, Valencia, Spain
| | - Pilar Ribera
- Department of Pharmacology, Faculty of Medicine, University of Valencia, Valencia, Spain
| | - Inés Roger
- CIBERES, Health Institute Carlos III, Valencia, Spain
| | - Beatriz Ballester
- Department of Pharmacology, Faculty of Medicine, University of Valencia, Valencia, Spain
| | - Paula Montero
- Department of Pharmacology, Faculty of Medicine, University of Valencia, Valencia, Spain
| | - Ángel Cogolludo
- CIBERES, Health Institute Carlos III, Valencia, Spain.,Department of Pharmacology, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Esteban Morcillo
- CIBERES, Health Institute Carlos III, Valencia, Spain.,Department of Pharmacology, Faculty of Medicine, University of Valencia, Valencia, Spain.,Health Research Institute INCLIVA, Valencia, Spain
| | - Julio Cortijo
- CIBERES, Health Institute Carlos III, Valencia, Spain.,Department of Pharmacology, Faculty of Medicine, University of Valencia, Valencia, Spain.,Research and teaching Unit, University General Hospital Consortium, Valencia, Spain
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Wu J, Li X, Qin Y, Cheng J, Hao G, Jin R, Zhu C. Jinwei Tang modulates HDAC2 expression in a rat model of COPD. Exp Ther Med 2018; 15:2604-2610. [PMID: 29456664 DOI: 10.3892/etm.2018.5707] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Accepted: 04/07/2017] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to investigate the effect of a Traditional Chinese Herbal Medicine (TCHM), named Jinwei Tang on histone deacetylase 2 (HDAC2) and its role in the regulation of corticosteroid resistance in a rat model of chronic obstructive pulmonary disease (COPD). Male Wistar rats were divided into five groups (each n=10): COPD group, established by the intratracheal instillation of lipopolysaccharide and passive smoke exposure, and control, budesonide, theophylline + budesonide and Jinwei Tang + budesonide groups. Lung function was measured, lung tissue histopathology was examined and HDAC2 expression in the lung was assessed by immunohistochemistry. In addition, protein levels of interleukin-8 (IL-8), tumor necrosis factor (TNF)-α and HDAC2 in lung homogenate were quantified by ELISA. The rat COPD model exhibited alterations of the ratio of forced expiratory volume in 0.2 sec (FEV0.2) to the forced vital capacity, FEV0.2, dynamic compliance and airway resistance. HDAC2 expression was markedly reduced in the lung tissue of the COPD group compared with the control group, and treatment with Jinwei Tang + budesonide or theophylline + budesonide resulted in significant attenuation of the reduction of HDAC2 expression in the lungs (P<0.05). However, treatment with budesonide alone did not significantly alter HDAC2 expression. In the Jinwei Tang + budesonide and theophylline + budesonide groups, IL-8 and TNF-α expression was significantly decreased (P<0.05) and the HDAC2 level increased (P<0.05) compared with that in the COPD group. In conclusion, Jinwei Tang modulates airway inflammation and may enhance the anti-inflammatory effect of glucocorticoid through the upregulation of HADC2 expression in a rat model of COPD.
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Affiliation(s)
- Jianjun Wu
- Department of Respiratory Disease, The Third Affiliated Hospital of Beijing University of Traditional Chinese Medicine, Beijing 100029, P.R. China
| | - Xin Li
- Department of Ocular Diseases, Eye Hospital, China Academy of Chinese Medical Sciences, Beijing 100040, P.R. China
| | - Yang Qin
- Department of Respiratory Disease, The Third Affiliated Hospital of Beijing University of Traditional Chinese Medicine, Beijing 100029, P.R. China
| | - Juan Cheng
- Department of Pathology, Dongzhimen Hospital Affiliated to Beijing University of Traditional Chinese Medicine, Beijing 100700, P.R. China
| | - Gaimei Hao
- Department of Pathology, Beijing University of Traditional Chinese Medicine, Beijing 100029, P.R. China
| | - Ruifeng Jin
- Department of Respiratory Disease, The Third Affiliated Hospital of Beijing University of Traditional Chinese Medicine, Beijing 100029, P.R. China
| | - Chenjun Zhu
- Department of Encephalopathy, The Third Affiliated Hospital of Beijing University of Traditional Chinese Medicine, Beijing 100029, P.R. China
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3
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Zhang Q, Wang M, Li X, Wang H, Wang J. Do symptom-based questions help screen COPD among Chinese populations? Sci Rep 2016; 6:30419. [PMID: 27456860 PMCID: PMC4960647 DOI: 10.1038/srep30419] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 07/05/2016] [Indexed: 01/05/2023] Open
Abstract
Spirometry is required to confirm a chronic obstructive pulmonary disease (COPD) diagnosis, but it is difficult to perform in resource-limited settings. This study aimed to evaluate symptom-based questions for screening of individuals with COPD among Chinese populations. We recruited 3969 adult subjects from the First Affiliated Hospital of Nanjing Medical University. Spirometric measurements of forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC) were collected to confirm the COPD diagnosis. A symptom-based questionnaire was administered to collect data related to COPD. The sensitivity and specificity together with the area under the curve (AUC) were calculated. The traditional IPAG eight-item questionnaire yielded an AUC of 0.80(95% CI: 0.78–0.82), with a sensitivity of 67.8% and specificity of 76.8%. After removing and adding questions, a revised eleven-item questionnaire exhibited a significantly increased diagnostic accuracy, with an AUC of 0.85(95% CI: 0.84–0.87). At the inflection point of the curve, it demonstrated a sensitivity of 82.5% and specificity of 72.9%. We showed that the revised symptom-based questionnaire could be used to screen individuals with a high likelihood of COPD among Chinese populations. Further validation is required before we claim it is a useful diagnostic for primary care populations.
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Affiliation(s)
- Qun Zhang
- Department of Respiratory, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.,Health Management Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Min Wang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Xiaona Li
- Health Management Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Hong Wang
- Department of Respiratory, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Jianming Wang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, 211166, China.,Department of Social Medicine and Health Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
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Peden DB, Bush RK. Advances in environmental and occupational disorders in 2014. J Allergy Clin Immunol 2016; 136:866-71. [PMID: 26449799 DOI: 10.1016/j.jaci.2015.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 08/14/2015] [Accepted: 08/19/2015] [Indexed: 01/26/2023]
Abstract
In 2014, the Journal published a number of studies that have advanced our understanding of the effects of various environmental factors and immune responses in patients with allergic diseases. In this review we emphasize reports that have appeared in the Journal over the past year that deal with environmental and occupational respiratory disorders and novel approaches to their treatment. The review will focus on the effects of environmental factors and immune responses in allergic airway diseases, identification of new allergens, and risk factors in stinging insect allergy, development of asthma in different age groups, effects of viral infections, and benefits of new therapies.
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Affiliation(s)
- David B Peden
- Department of Pediatrics, Division of Allergy, Immunology, and Rheumatology, University of North Carolina School of Medicine, Chapel Hill, NC.
| | - Robert K Bush
- Department of Medicine, Division of Allergy, Immunology, Pulmonary, Critical Care, and Sleep Medicine, University of Wisconsin, School of Medicine and Public Health, Madison, Wis
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