51
|
Hayek H, Kosmider B, Bahmed K. The role of miRNAs in alveolar epithelial cells in emphysema. Biomed Pharmacother 2021; 143:112216. [PMID: 34649347 PMCID: PMC9275516 DOI: 10.1016/j.biopha.2021.112216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 09/13/2021] [Accepted: 09/15/2021] [Indexed: 02/07/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is an inflammatory lung disease becoming one of the leading causes of mortality and morbidity globally. The significant risk factors for COPD are exposure to harmful particles such as cigarette smoke, biomass smoke, and air pollution. Pulmonary emphysema belongs to COPD and is characterized by a unique alveolar destruction pattern resulting in marked airspace enlargement. Alveolar type II (ATII) cells have stem cell potential; they proliferate and differentiate to alveolar type I cells to restore the epithelium after damage. Oxidative stress causes premature cell senescence that can contribute to emphysema development. MiRNAs regulate gene expression, are essential for maintaining ATII cell homeostasis, and their dysregulation contributes to this disease development. They also serve as biomarkers of lung diseases and potential therapeutics. In this review, we summarize recent findings on miRNAs’ role in alveolar epithelial cells in emphysema.
Collapse
Affiliation(s)
- Hassan Hayek
- Department of Microbiology, Immunology, and Inflammation, Temple University, Philadelphia, PA 19140, USA; Center for Inflammation and Lung Research, Temple University, Philadelphia, PA 19140, USA
| | - Beata Kosmider
- Department of Microbiology, Immunology, and Inflammation, Temple University, Philadelphia, PA 19140, USA; Center for Inflammation and Lung Research, Temple University, Philadelphia, PA 19140, USA; Department of Biomedical Education and Data Science, Temple University, Philadelphia, PA 19140, USA
| | - Karim Bahmed
- Center for Inflammation and Lung Research, Temple University, Philadelphia, PA 19140, USA; Department of Thoracic Medicine and Surgery, Temple University, Philadelphia, PA 19140, USA.
| |
Collapse
|
52
|
Andreeva E, Pokhasnikova M, Lebedev A, Moiseeva I, Kozlov A, Kuznetsova O, Degryse JM. Inflammatory parameters and pulmonary biomarkers in smokers with and without chronic obstructive pulmonary disease (COPD). J Thorac Dis 2021; 13:4812-4829. [PMID: 34527321 PMCID: PMC8411144 DOI: 10.21037/jtd-20-1580] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 05/26/2021] [Indexed: 01/14/2023]
Abstract
Background We organized this study in order to investigate differences in serum inflammatory profiles and circulating serum pneumoproteins between smokers with and without chronic obstructive pulmonary disease (COPD). Methods Patients aged 35–70 years with COPD and a smoking history ≥10 pack-years (cases, n=38) and 38 participants with the same smoking history without COPD (controls) were included in a comparative study conducted as part of a population-based cross-sectional study with 2,388 individuals in northwestern Russia. Cases and controls were matched for age and smoking history. Airflow obstruction (AO) was defined using forced expiratory volume in 1 second (FEV1)/forced vital capacity (FVC) <0.70 and/or FEV1/FVC < lower limit of the normal cut-off values. Patients at risk for COPD were reassessed using a standardized diagnostic work-up protocol. Several parameters, among which four inflammatory biomarkers [the high-sensitivity C-reactive protein (hs-CRP), interleukin (IL)-6, IL-8, and tumor necrosis factor-α (TNF-α) levels] and two pneumoproteins [surfactant protein D (SP-D) and Clara cell secretory protein 16 (CC16)], were measured in the peripheral blood. Systemic inflammation was defined as at least 2 or more elevated biomarker levels. Results Out of all smokers, 57.9% with normal spirometry and 36.8% with COPD did not have systemic inflammation, whereas 44.7% of the patients with COPD and 5.3% of the patients without AO demonstrated at least two elevated biomarker levels. No difference in age, gender, and smoking history, environmental and occupational exposure was found between the non-inflamed and the inflamed smokers. Of all risk factors studied, only COPD was associated with systemic inflammation [odds ratio (OR) 11.42, 95% confidence interval (CI): 2.13–58.84]. Conclusions Our study describes the systemic inflammatory network pattern associated with COPD and how it differs from the pattern in smokers with normal lung function. Systemic inflammation is not present in all smokers with COPD; in contrast, some non-obstructed smokers are characterized by systemic inflammation. From this perspective, smoking itself could be seen as a disease and studied accordingly. Trial Registration NCT02307799.
Collapse
Affiliation(s)
- Elena Andreeva
- Institute of Health and Society, Université Catholique de Louvain, IRSS, Clos Chapelle-aux-Champs, Brussels, Belgium.,Department of Family Medicine, Northern State Medical University, Arkhangelsk, the Russian Federation
| | - Marina Pokhasnikova
- Department of Family Medicine, North-western State Medical University named after I.I. Mechnikov, Saint Petersburg, the Russian Federation
| | - Anatoly Lebedev
- Department of Family Medicine, North-western State Medical University named after I.I. Mechnikov, Saint Petersburg, the Russian Federation
| | - Irina Moiseeva
- Department of Family Medicine, North-western State Medical University named after I.I. Mechnikov, Saint Petersburg, the Russian Federation
| | - Anton Kozlov
- Biomedical Department, North-western State Medical University named after I.I. Mechnikov, Saint Petersburg, the Russian Federation
| | - Olga Kuznetsova
- Department of Family Medicine, North-western State Medical University named after I.I. Mechnikov, Saint Petersburg, the Russian Federation
| | - Jean-Marie Degryse
- Institute of Health and Society, Université Catholique de Louvain, IRSS, Clos Chapelle-aux-Champs, Brussels, Belgium.,Department of Public Health and Primary Care, KU Leuven, Kapucijnenvoer, Leuven, Belgium
| |
Collapse
|
53
|
Shnoda M, Gajjar K, Ivanova V. COPD and Cardiovascular Disease: A Review of Association, Interrelationship, and Basic Principles for Integrated Management. Crit Care Nurs Q 2021; 44:91-102. [PMID: 33234862 DOI: 10.1097/cnq.0000000000000342] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The presence of comorbid cardiovascular disease (CVD) in patients with chronic obstructive pulmonary disease (COPD) can result in unfavorable outcomes, ranging from deterioration in quality of life to increases in all-cause and cardiovascular mortality. Moreover, cardiovascular events are major cause of hospitalization in patients with COPD and contributing significantly to the economic burden of the disease. Despite the acknowledgment of the prognostic significance of CVD comorbidity in COPD patients, CVD remains underrecognized and undertreated in this patient population. In this article, we address the current knowledge about the estimated prevalence, pathophysiologic association, as well as important considerations in the diagnosis and management of CVD in COPD patients.
Collapse
Affiliation(s)
- Mina Shnoda
- Divisions of Internal Medicine (Dr Shnoda) and Cardiovascular Institute (Drs Gajjar and Ivanova), Allegheny General Hospital, Allegheny Health Network, Pittsburgh, Pennsylvania
| | | | | |
Collapse
|
54
|
Fang X, Zhang S, Wang Z, Zhou J, Qi C, Song J. Cigarette smoke extract combined with LPS down-regulates the expression of MRP2 in chronic pulmonary inflammation may be related to FXR. Mol Immunol 2021; 137:174-186. [PMID: 34273652 DOI: 10.1016/j.molimm.2021.06.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/13/2021] [Accepted: 06/25/2021] [Indexed: 01/19/2023]
Abstract
The transporter multidrug resistance protein 2 (MRP2) plays an important role in chronic pulmonary inflammation by transporting cigarette smoke and other related inflammatory mediators. However, it is not completely clear whether pulmonary inflammation caused by cigarette smoke extract (CSE) and lipopolysaccharide (LPS) is related to MRP2 and its signal factors. In this study, CSE combined with LPS was used to establish an inflammation model in vivo and in vitro. We found that compared with the control group, after CSE combined with LPS treatment, the expression of MRP2 in rat lung tissue in vivo and human alveolar cell line in vitro was down-regulated, while the expression of inflammatory factors was up-regulated. Through silencing and overexpression of FXR, it was found that silent FXR could down-regulate MRP2 and up-regulate the expression of inflammatory factors. On the contrary, overexpression of FXR could up-regulate MRP2 and down-regulate the expression of inflammatory factors. Our results show that CSE combined with LPS can down-regulate the expression of MRP2 under inflammatory conditions, and the down-regulation of MRP2 expression may be achieved partly through the FXR signal pathway.
Collapse
Affiliation(s)
- Xin Fang
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Shuyi Zhang
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Zihao Wang
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Jian Zhou
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Chuanzong Qi
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Jue Song
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China.
| |
Collapse
|
55
|
Zhou X, Gao Y, Hu Y, Ma X. Melatonin protects cochlear hair cells from nicotine-induced injury through inhibiting apoptosis, inflammation, oxidative stress and endoplasmic reticulum stress. Basic Clin Pharmacol Toxicol 2021; 129:308-318. [PMID: 34254721 DOI: 10.1111/bcpt.13638] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 07/07/2021] [Accepted: 07/09/2021] [Indexed: 12/23/2022]
Abstract
Hearing loss positively links with cigarette smoking. However, the involved mechanism and treatment strategies are largely unrevealed. This study aimed to investigate the damaging effect of nicotine on cochlear hair cells, reveal the underlying mechanism and evaluate the therapeutic effect of melatonin on nicotine-induced injury. The results showed that nicotine induced cytotoxicity of House Ear Institute-Organ of Corti 1 (HEI-OC1) cochlear hair cells in a dose-dependent manner (0, 2.5, 5, 10, 20, 40 and 80 μM). Functional investigations showed that nicotine (10 μM) stimulation dramatically promoted apoptosis, inflammatory response, oxidative stress and endoplasmic reticulum stress in HEI-OC1 cells. Moreover, melatonin treatment dose-dependently alleviated the nicotine-induced cytotoxicity in HEI-OC1 cells (0, 10 25, 50 and 100 μM). Further investigation showed that melatonin (100 μM) effectively attenuated the nicotine-induced apoptosis, inflammation, oxidative stress and endoplasmic reticulum stress in HEI-OC1 cells. Collectively, we demonstrated that nicotine induced apoptosis, inflammation, oxidative stress and endoplasmic reticulum stress of cochlear hair cells in an in vitro cell model. Melatonin showed protective effect on these aspects, suggesting that melatonin may be a potential agent for treating smoking-induced hearing loss.
Collapse
Affiliation(s)
- Xinjia Zhou
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yuan Gao
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yue Hu
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xiulan Ma
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| |
Collapse
|
56
|
Huang J, Li J, Yin P, Wang L, Pan X, Zhou M, Li G. Ambient nitrogen dioxide and years of life lost from chronic obstructive pulmonary disease in the elderly: A multicity study in China. CHEMOSPHERE 2021; 275:130041. [PMID: 33652282 DOI: 10.1016/j.chemosphere.2021.130041] [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: 11/16/2020] [Revised: 01/29/2021] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is a leading cause of morbidity and mortality worldwide, and nitrogen dioxide (NO2) is a potential environmental risk factor for COPD. However, association between ambient NO2 and COPD risk remains underrecognized, especially in the elderly. This study aimed to explore association between NO2 and years of life lost (YLL) from COPD in the elderly from 2013 to 2017 in 37 major cities in China. METHODS Ambient NO2 data and COPD morality information were obtained from the National Urban Air Quality Real-time Publishing Platform and the Chinese Centers for Disease Control and Prevention, respectively. City-specific relative changes in YLL were estimated by generalized additive models, and meta-analysis was used to combine city-specific results. Potential modifications were evaluated. Economic loss due to excess YLL from COPD associated with ambient NO2 was evaluated. RESULTS An increase of 10 μg/m3 in NO2 for 2-day moving average led to 0.94% (95% CI: 0.56%, 1.31%) relative increase in COPD YLL. The associations were significantly higher in South than North China. Higher estimated effects were found in the warm than the cool season in the southern region. The relevant economic loss accounted for 0.04% (95% CI: 0.02%, 0.05%) of the gross domestic product (GDP) in China during the same period. CONCLUSIONS The findings provide evidence on the impact of short-term NO2 exposure on COPD YLL in the elderly, which indicated more stringent control of NO2 pollution and highlighted the need to protect the elderly during the warm season in South China.
Collapse
Affiliation(s)
- Jing Huang
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, Beijing, China
| | - Jie Li
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing, China; National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Peng Yin
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Lijun Wang
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiaochuan Pan
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, Beijing, China
| | - Maigeng Zhou
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
| | - Guoxing Li
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, Beijing, China.
| |
Collapse
|
57
|
Fang X, Wang Z, Qi C, Zhou J, Zhang S, Song J. The changes of MRP2 expression in three kinds of pulmonary inflammation models: the downregulation occurred in cigarette smoke extract (CSE) stimulation group and CSE plus LPS stimulation group, unchanged in LPS stimulation group. Toxicol Mech Methods 2021; 31:413-424. [PMID: 33752573 DOI: 10.1080/15376516.2021.1903638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 03/10/2021] [Accepted: 03/10/2021] [Indexed: 01/07/2023]
Abstract
The transporter multidrug resistance protein 2 (MRP2) can transport some tobacco carcinogens and plays an important role in the transport of mediators related to pulmonary inflammatory diseases. However, it is not fully understood whether the pulmonary inflammation caused by cigarette smoke extract (CSE) and lipopolysaccharide (LPS) is related to the regulation of MRP2. In this study, CSE and LPS were used alone and in combination as stimuli to induce pulmonary inflammation. In addition, the establishment of a pulmonary inflammation model was verified by animal experiments in vivo. We found that compared with those in the control group, the expression of MRP2 protein was downregulated and the expression of inflammatory cytokines was upregulated in pulmonary inflammation in the CSE group and the CSE combined with LPS group. However, there was almost no change in the expression of MRP2 stimulated by LPS alone. Our results show that CSE and CSE combined with LPS downregulate the expression of MRP2 under inflammatory conditions, while LPS has almost no effect on the expression of MRP2 under inflammatory conditions. The in vivo experimental results of CSE combined with LPS were consistent with the cellular results of CSE combined with LPS, which provides a model and basis for other studies of the role of MRP2 in pulmonary inflammation.
Collapse
Affiliation(s)
- Xin Fang
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
- Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Zihao Wang
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
- Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Chuanzong Qi
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
- Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Jian Zhou
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
- Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Shuyi Zhang
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
- Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Jue Song
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
- Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| |
Collapse
|
58
|
Zhang Q, Li W, Ayidaerhan N, Han W, Chen Y, Song W, Yue Y. IP 3 R attenuates oxidative stress and inflammation damage in smoking-induced COPD by promoting autophagy. J Cell Mol Med 2021; 25:6174-6187. [PMID: 34060199 PMCID: PMC8256356 DOI: 10.1111/jcmm.16546] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 02/14/2021] [Accepted: 03/22/2021] [Indexed: 02/06/2023] Open
Abstract
Tobacco smoking is one of the most important risk factors for chronic obstructive pulmonary disease (COPD). However, the most critical genes and proteins remain poorly understood. Therefore, we aimed to investigate these hub genes and proteins in tobacco smoke-induced COPD, together with the potential mechanism(s). Differentially expressed genes (DEGs) were analysed between smokers and patients with COPD. mRNA expression and protein expression of IP3 R were confirmed in patients with COPD and extracted smoke solution (ESS)-treated human bronchial epithelial (HBE) cells. Moreover, expression of oxidative stress, inflammatory cytokines and/or autophagy-related protein was tested when IP3 R was silenced or overexpressed in ESS-treated and/or 3-MA-treated cells. A total of 30 DEGs were obtained between patients with COPD and smoker samples. IP3 R was identified as one of the key targets in tobacco smoke-induced COPD. In addition, IP3 R was significantly decreased in patients with COPD and ESS-treated cells. Loss of IP3 R statistically increased expression of oxidative stress and inflammatory cytokines in ESS-treated HBE cells, and overexpression of IP3 R reversed the above functions. Furthermore, the autophagy-related proteins (Atg5, LC3 and Beclin1) were statistically decreased, and p62 was increased by silencing of IP3 R cells, while overexpression of IP3 R showed contrary results. Additionally, we detected that administration of 3-MA significantly reversed the protective effects of IP3 R overexpression on ESS-induced oxidative stress and inflammatory injury. Our results suggest that IP3 R might exert a protective role against ESS-induced oxidative stress and inflammation damage in HBE cells. These protective effects might be associated with promoting autophagy.
Collapse
Affiliation(s)
- Qiang Zhang
- Department of Pulmonary and Critical Care MedicineShengjing Hospital of China Medical UniversityShenyangChina
| | - Wei Li
- Key Laboratory of Intelligent Computing in Medical ImageMinistry of EducationNortheastern UniversityShenyangChina
| | - Nahemuguli Ayidaerhan
- Department of Pulmonary and Critical Care MedicineTarbagatay Prefecture People’s HospitalTachengChina
| | - Wuxin Han
- Department of Clinical LaboratoryTarbagatay Prefecture People’s HospitalTachengChina
| | - Yingying Chen
- Department of Pulmonary and Critical Care MedicineShengjing Hospital of China Medical UniversityShenyangChina
| | - Wei Song
- Department of Pulmonary and Critical Care MedicineShengjing Hospital of China Medical UniversityShenyangChina
| | - Yuanyi Yue
- Department of Gastroenterology MedicineShengjing Hospital of China Medical UniversityShenyangChina
| |
Collapse
|
59
|
Huo X, Jin S, Wang Y, Ma L. DNA methylation in chronic obstructive pulmonary disease. Epigenomics 2021; 13:1145-1155. [PMID: 34142873 DOI: 10.2217/epi-2021-0111] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD), a complex disease with polygenetic tendency, is one of the most important health problems in the world. Recently, in the study of the pathogenesis of the COPD, epigenetic changes caused by environmental factors, such as DNA methylation, started to attract more attention than genetic factors. In this review, we discuss the main features of DNA methylation, such as DNA methyltransferases and the methylation sites that modulate the DNA methylation level, and their roles in COPD progression. Finally, to promote new ideas for the prevention and treatment of COPD, we focus on the potential of DNA methylation as a COPD therapeutic target.
Collapse
Affiliation(s)
- XinXin Huo
- School of Public Health, Lanzhou University, Lanzhou, China
| | - SiHui Jin
- School of Public Health, Lanzhou University, Lanzhou, China
| | - YiGe Wang
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Li Ma
- School of Public Health, Lanzhou University, Lanzhou, China
| |
Collapse
|
60
|
Li X, Zhou G, Tian X, Chen F, Li G, Ding Y. The polymorphisms of FGFR2 and MGAT5 affect the susceptibility to COPD in the Chinese people. BMC Pulm Med 2021; 21:129. [PMID: 33879098 PMCID: PMC8058990 DOI: 10.1186/s12890-021-01498-3] [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: 01/14/2021] [Accepted: 03/31/2021] [Indexed: 11/24/2022] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) is characterized by incomplete reversible airflow limitation and chronic inflammatory response lesions. This study mainly explored whether FGFR2 and MGAT5 polymorphisms affected the risk of COPD in the Chinese people. Methods Five variants in FGFR2 and MGAT5 were chosen and genotyped using Agena MassARRAY platform from 315 COPD patients and 314 healthy controls. The correlation of FGFR2 and MGAT5 with COPD susceptibility was evaluated with odds ratio (OR) and 95% confidence interval (CI) via logistic regression. Results We found rs2420915 enhanced the risk of COPD, while rs6430491, rs2593704 reduced the susceptibility of COPD (p < 0.05). Rs2420915 could promote the incidence of COPD in the elderly and nonsmokers. Rs1907240 and rs2257129 also increased the susceptibility to COPD in nonsmokers (p < 0.05). MGAT5-rs2593704 played a protective role in COPD development in different subgroups (age ≤ 70, male, smokers, and individuals with BMI ≤ 24 kg/m2). Meanwhile, rs6430491 was linked with a lower risk of COPD in nonsmoking and BMI ≤ 24 kg/m2 subgroups. Conclusions We concluded that FGFR2 and MGAT5 genetic polymorphisms are correlated with the risk of COPD in the Chinese people. These data underscored the important role of FGFR2 and MGAT5 gene in the occurrence of COPD and provided new biomarkers for COPD treatment. Trial registration: NA. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-021-01498-3.
Collapse
Affiliation(s)
- Xiaobo Li
- Department of General Practice, People's Hospital of Wanning, Wanning, 571500, Hainan, China
| | - Guangyu Zhou
- Department of Nursing, People's Hospital of Wanning, Wanning, 571500, Hainan, China
| | - Xiaobo Tian
- Department of Medical, People's Hospital of Wanning, Wanning, 571500, Hainan, China
| | - Fei Chen
- Nanyang Branch of Wencheng Health Center of Wenchang City, Wenchang, 571399, Hainan, China.,Department of Science and Education Department, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, 570311, Hainan, China
| | - Guoyao Li
- Department of General Practice, People's Hospital of Wanning, Wanning, 571500, Hainan, China
| | - Yipeng Ding
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, No. 19, Xinhua Road, Xiuying District, Haikou, 570311, Hainan, China.
| |
Collapse
|
61
|
Shih YM, Chang YJ, Cooke MS, Pan CH, Hu CH, Chao MR, Hu CW. Alkylating and oxidative stresses in smoking and non-smoking patients with COPD: Implications for lung carcinogenesis. Free Radic Biol Med 2021; 164:99-106. [PMID: 33418114 PMCID: PMC7897309 DOI: 10.1016/j.freeradbiomed.2020.12.442] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/24/2020] [Accepted: 12/25/2020] [Indexed: 02/07/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is a disease characterized by chronic inflammation and irreversible airway obstruction. Cigarette smoking is the predominant risk factor for developing COPD. It is well-known that the COPD is also strongly associated with an increased risk of developing lung cancer. Cigarette smoke contains elevated concentrations of oxidants and various carcinogens (e.g., tobacco-derived nitrosamines) that can cause oxidative and alkylating stresses, which can also arise from inflammation. However, it is surprising that, except for oxidative stress, little information is available on the burden of alkylating stress and the detoxification efficiency of tobacco-derived carcinogens in COPD patients. In this study, we used LC-MS/MS to measure the archetypical tobacco-specific carcinogenic 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), its major metabolite, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL), three biomarkers of oxidative stress (8-oxo-7,8-dihydroguanine, 8-oxoGua; 8-oxo-7,8-dihydro-2'-deoxyguanosine, 8-oxodGuo; 8-oxo-7,8-dihydroguanosine, 8-oxoGuo) and two biomarkers of alkylating stress (N7-methylguanine, N7-MeGua and N3-methyladenine, N3-MeAde), in the urine of smoking and non-smoking COPD patients and healthy controls. Our results showed that not only was oxidative stress significantly elevated in the COPD patients compared to the controls, but also alkylating stress. Significantly, levels of alkylating stress (i.e., N7-MeGua) were highly correlated with the COPD severity and not affected by age and smoking status. Furthermore, COPD smokers had significantly higher ratios of free NNAL to the total NNAL than control smokers, implying a lower detoxification efficiency of NNK in COPD smokers. This ratio was even higher in COPD smokers with stages 3-4 than in COPD smokers with stages 1-2. Taken together, our results demonstrated that the detoxification efficiency of tobacco-derived carcinogens (e.g., NNK) was associated with the pathogenesis and possibly the progression of COPD. In addition to oxidative stress, alkylating stress derived from chronic inflammation appears to be also dominant in COPD patients.
Collapse
Affiliation(s)
- Ying-Ming Shih
- Department of Public Health, Chung Shan Medical University, Taichung, 402, Taiwan; Division of Chest Medicine, Department of Internal Medicine, Changhua Christian Hospital, Changhua, 500, Taiwan
| | - Yuan-Jhe Chang
- Department of Occupational Safety and Health, Chung Shan Medical University, Taichung, 402, Taiwan
| | - Marcus S Cooke
- Oxidative Stress Group, Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL, 33620, USA
| | - Chih-Hong Pan
- Institute of Labor, Occupational Safety and Health, Ministry of Labor, New Taipei City, 221, Taiwan
| | - Ching-Hsuan Hu
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung Medical College and Chang Gung University, Taoyuan, 333, Taiwan
| | - Mu-Rong Chao
- Department of Occupational Safety and Health, Chung Shan Medical University, Taichung, 402, Taiwan.
| | - Chiung-Wen Hu
- Department of Public Health, Chung Shan Medical University, Taichung, 402, Taiwan; Department of Family and Community Medicine, Chung Shan Medical University Hospital, Taichung, 402, Taiwan.
| |
Collapse
|
62
|
Ghanizada M, Jakobsen KK, Jensen JS, Wessel I, Filtenborg Tvedskov J, Grønhøj C, von Buchwald C. The impact of comorbidities on survival in oral cancer patients: a population-based, case-control study. Acta Oncol 2021; 60:173-179. [PMID: 33103528 DOI: 10.1080/0284186x.2020.1836393] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Comorbidities have shown to highly influence the outcome and risk of death of head and neck cancer patients. The purpose of this study was to examine the comorbidities among oral cavity squamous cell carcinoma (OSCC) patients, and to investigate the impact of comorbidities on overall survival (OS) and recurrence free survival (RFS). METHODS Patients diagnosed with OSCC in Eastern Denmark in the period 2000-2014 and treated with curative intend were included. Patients data were linked to the Danish National Patients Register to identify comorbidities based on the Charlson Comorbidity Index (CCI) at the time of diagnosis and five years after diagnosis. Each patient was age-and sex-matched in a 1:10 ratio with an age and sex matched reference group. RESULTS A total of 1,183 patients and 11,830 controls were included. Overall this study found comorbidities to be more common among OSCC compared to the reference group both at the time of diagnosis and five years after. The 5-year OS among patients with a CCI score of zero, one, two, and three or above was 60%, 44%, 41%, and 40%, respectively. Similarly, the multivariate cox-regression analysis showed that patients with increasing CCI score also had an increasing risk of death compared to patients with no comorbidities. CONCLUSION OSCC patients had significantly higher comorbidity burden at diagnosis and risk of developing additional comorbidities after diagnosis compared to the reference population. Survival outcomes decreased significantly with higher CCI.
Collapse
Affiliation(s)
- Mustafa Ghanizada
- Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Kathrine Kronberg Jakobsen
- Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Jakob Schmidt Jensen
- Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Irene Wessel
- Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Jesper Filtenborg Tvedskov
- Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Christian Grønhøj
- Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Christian von Buchwald
- Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
63
|
Ahmad S, Arora S, Khan S, Mohsin M, Mohan A, Manda K, Syed MA. Vitamin D and its therapeutic relevance in pulmonary diseases. J Nutr Biochem 2020; 90:108571. [PMID: 33388351 DOI: 10.1016/j.jnutbio.2020.108571] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 09/20/2020] [Accepted: 12/24/2020] [Indexed: 01/15/2023]
Abstract
Vitamin D is customarily involved in maintaining bone and calcium homeostasis. However, contemporary studies have identified the implication of vitamin D in several cellular processes including cellular proliferation, differentiation, wound healing, repair and regulatory systems inclusive of host defence, immunity, and inflammation. Multiple studies have indicated corelations between low serum levels of vitamin D, perturbed pulmonary functions and enhanced incidences of inflammatory diseases. Almost all of the pulmonary diseases including acute lung injury, cystic fibrosis, asthma, COPD, Pneumonia and Tuberculosis, all are inflammatory in nature. Studies have displayed strong inter-relations with vitamin D deficiency and progression of lung disorders; however, the underlying mechanism is still unknown. Vitamin D has emerged to possess inhibiting effects on pulmonary inflammation while exaggerating innate immune defenses by strongly influencing functions of inflammatory cells including dendritic cells, monocyte/macrophages, T cells, and B cells along with structural epithelial cells. This review dissects the effects of vitamin D on the inflammatory cells and their therapeutic relevance in pulmonary diseases. Although, the data obtained is very limited and needs further corroboration but presents an exciting area of further research. This is because of its ease of supplementation and development of personalized medicine which could lead us to an effective adjunct and cost-effective method of therapeutic modality for highly fatal pulmonary diseases.
Collapse
Affiliation(s)
- Shaniya Ahmad
- Translational Research Lab, Department of Biotechnology, Jamia Millia Islamia, New Delhi, India; Institute of Nuclear Medicine and Allied Science, Defence Research and Development Organisation, New Delhi, India
| | - Shweta Arora
- Translational Research Lab, Department of Biotechnology, Jamia Millia Islamia, New Delhi, India
| | - Salman Khan
- Translational Research Lab, Department of Biotechnology, Jamia Millia Islamia, New Delhi, India
| | - Mohd Mohsin
- Translational Research Lab, Department of Biotechnology, Jamia Millia Islamia, New Delhi, India
| | - Anant Mohan
- Department of Pulmonary Medicine, AIIMS, New Delhi, India
| | - Kailash Manda
- Institute of Nuclear Medicine and Allied Science, Defence Research and Development Organisation, New Delhi, India
| | - Mansoor Ali Syed
- Translational Research Lab, Department of Biotechnology, Jamia Millia Islamia, New Delhi, India.
| |
Collapse
|
64
|
Velen K, Nhung NV, Anh NT, Cuong PD, Hoa NB, Cuong NK, Dung NH, Sy DN, Britton WJ, Marks GB, Fox GJ. Risk factors for TB among household contacts of patients with smear-positive TB in eight provinces of Vietnam: a nested case-control study. Clin Infect Dis 2020; 73:e3358-e3364. [PMID: 33215197 DOI: 10.1093/cid/ciaa1742] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/16/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Tuberculosis (TB) continues to account for significant morbidity and mortality annually. Household contacts (HHCs) of persons with TB are a key population for targeting prevention and control interventions. We aimed to identify risk factors associated with developing TB among HHCs. METHODS We conducted a nested case-control study among HHCs in eight provinces in Vietnam who were enrolled in a randomized control trial of active case finding for TB. Cases were any HHCs diagnosed and registered with TB within the Vietnam National TB programme during two years of follow-up. Controls were selected by simple random sampling from the remaining HHCs. Risk factor data were collected at enrolment and during follow-up. A logistic regression model was developed to determine predictors of TB among HHCs. RESULTS We selected 1,254 HHCs for the analysis; 214 cases and 1,040 controls. Underlying characteristics varied between both groups; cases were older, more likely to be male, higher proportion of reported previous TB and diabetes. Risk factors associated with a TB diagnosis included being male (aOR 1.4; 95% CI: 1.03-2.0), residing in an urban setting (aOR 1.8; 1.3-2.5), prior TB (aOR 4.6; 95% CI: 2.5-8.7), history of diabetes (aOR 3.1; 95% CI: 1.7-5.8), current smoking (aOR 3.1; 95% CI: 2.2-4.4) and prolonged history of coughing in the source case at enrolment (OR 1.6; 95% CI: 1.1-2.3). CONCLUSIONS Household contacts remain and important key population for TB prevention and control. TB programmes should ensure effective contact investigations are implemented for household contacts, particularly those with additional risk factors for developing tuberculosis.
Collapse
Affiliation(s)
- Kavindhran Velen
- Sydney Medical School, The University of Sydney, Sydney, Australia.,Woolcock Institute of Medical Research, Sydney, Australia
| | | | - Nguyen Thu Anh
- Woolcock Institute of Medical Research, Sydney, Australia
| | - Pham Duc Cuong
- Woolcock Institute of Medical Research, Sydney, Australia
| | - Nguyen Binh Hoa
- National Lung Hospital, Hanoi, Vietnam.,Centre for Operational Research, International Union Against Tuberculosis and Lung Disease, Paris, France
| | - Nguyen Kim Cuong
- National Lung Hospital, Hanoi, Vietnam.,Hanoi Medical University, Hanoi, Vietnam
| | | | | | - Warwick John Britton
- Centenary Institute of Cancer Medicine and Cell Biology, University of Sydney, Sydney, Australia.,Department of Clinical Immunology, Royal Prince Alfred Hospital, Sydney, Australia
| | - Guy Barrington Marks
- Woolcock Institute of Medical Research, Sydney, Australia.,South Western Sydney Clinical School, University of New South Wales, Sydney, Australia
| | - Greg James Fox
- Sydney Medical School, The University of Sydney, Sydney, Australia.,Woolcock Institute of Medical Research, Sydney, Australia
| |
Collapse
|
65
|
Fan J, Guo Y, Cao Z, Cong S, Wang N, Lin H, Wang C, Bao H, Lv X, Wang B, Gao Y, Chen Y, Yang T, Wang L, Wang C, Ruan Z, Fang L. Neighborhood greenness associated with chronic obstructive pulmonary disease: A nationwide cross-sectional study in China. ENVIRONMENT INTERNATIONAL 2020; 144:106042. [PMID: 32827808 DOI: 10.1016/j.envint.2020.106042] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 07/17/2020] [Accepted: 08/05/2020] [Indexed: 06/11/2023]
Abstract
Differential findings have been reported on the association between neighborhood greenness and chronic obstructive pulmonary disease (COPD). The underlying reasons might be the different types of vegetation and the diagnosis methods used in different studies. In this nationwide cross-sectional study in China, we examined the linkage between neighborhood greenness and COPD prevalence among 66,752 adults aged 40 years and above. Neighborhood greenness was estimated using the normalized difference vegetation index (NDVI) based on satellite imagery within buffers of 100, 300, 500, 1000, 2000, 3000 and 5000 m of residential community of the participants. COPD was defined according to the 2017 Global Initiative for Chronic Obstructive Lung Disease lung function criteria. A two-level logistic regression model was applied to estimate the associations. Finally, 9134 adults were classified as COPD. We observed significant positive associations between neighborhood greenness and COPD prevalence. The odds ratio for each interquartile range increase in NDVI within 100 m buffer was 1.08 (95% CI: 1.01, 1.15) after adjustment for potential confounders. Consistent associations were observed across all other NDVI buffer sizes. Stratified analyses revealed that younger adults (40-65 years) and urban residents might be the vulnerable subpopulations. Further regional analyses found that residents from the Northeastern and Northern China were more likely to have this association. Our results indicated that neighborhood greenness might be one risk factor of COPD prevalence. Our study have important public health implications for allocating the surrounding green spaces among living areas, especially for those with respiratory illness; however, the findings and the underlying mechanisms warrant further examinations in longitudinal settings.
Collapse
Affiliation(s)
- Jing Fan
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yawei Guo
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Zheng Cao
- School of Geographical Sciences, Guangzhou University, Guangzhou, China
| | - Shu Cong
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Ning Wang
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hualiang Lin
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Chongjian Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Heling Bao
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China; Department of Maternal and Child Health, School of Public Health, Peking University, Beijing, China
| | - Xueli Lv
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Baohua Wang
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yi Gao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yahong Chen
- Department of Respiratory and Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Ting Yang
- Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Linhong Wang
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Chen Wang
- Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China; Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zengliang Ruan
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China.
| | - Liwen Fang
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
| |
Collapse
|
66
|
Choi JY, Rhee CK. Diagnosis and Treatment of Early Chronic Obstructive Lung Disease (COPD). J Clin Med 2020; 9:jcm9113426. [PMID: 33114502 PMCID: PMC7692717 DOI: 10.3390/jcm9113426] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 10/23/2020] [Accepted: 10/23/2020] [Indexed: 12/16/2022] Open
Abstract
Chronic obstructive lung disease (COPD) is responsible for substantial rates of mortality and economic burden, and is one of the most important public-health concerns. As the disease characteristics include irreversible airway obstruction and progressive lung function decline, there has been a great deal of interest in detection at the early stages of COPD during the “at risk” or undiagnosed preclinical stage to prevent the disease from progressing to the overt stage. Previous studies have used various definitions of early COPD, and the term mild COPD has also often been used. There has been a great deal of recent effort to establish a definition of early COPD, but comprehensive evaluation is still required, including identification of risk factors, various physiological and radiological tests, and clinical manifestations for diagnosis of early COPD, considering the heterogeneity of the disease. The treatment of early COPD should be considered from the perspective of prevention of disease progression and management of clinical deterioration. There has been a lack of studies on this topic as the definition of early COPD has been proposed only recently, and therefore further clinical studies are needed.
Collapse
Affiliation(s)
- Joon Young Choi
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Chin Kook Rhee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Correspondence: ; Tel.: +82-2-2258-6067; Fax: +82-2-599-3589
| |
Collapse
|
67
|
Morales-Mantilla DE, Huang X, Erice P, Porter P, Zhang Y, Figueroa M, Chandra J, King KY, Kheradmand F, Rodríguez A. Cigarette Smoke Exposure in Mice using a Whole-Body Inhalation System. J Vis Exp 2020. [PMID: 33165327 DOI: 10.3791/61793] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Close to 14% of adults in the United States were reported to smoke cigarettes in 2018. The effects of cigarette smoke (CS) on lungs and cardiovascular diseases have been widely studied, however, the impact of CS in other tissues and organs such as blood and bone marrow remain incompletely defined. Finding the appropriate system to study the effects of CS in rodents can be prohibitively expensive and require the purchase of commercially available systems. Thus, we set out to build an affordable, reliable, and versatile system to study the pathologic effects of CS in mice. This whole-body inhalation exposure system (WBIS) set-up mimics the breathing and puffing of cigarettes by alternating exposure to CS and clean air. Here we show that this do-it-yourself (DIY) system induces airway inflammation and lung emphysema in mice after 4-months of cigarette smoke exposure. The effects of whole-body inhalation (WBI) of CS on hematopoietic stem and progenitor cells (HSPCs) in the bone marrow using this apparatus are also shown.
Collapse
Affiliation(s)
- Daniel E Morales-Mantilla
- Program in Immunology, Baylor College of Medicine; Department of Pediatrics, Section of Infectious Diseases, Baylor College of Medicine
| | - Xinyan Huang
- Department of Medicine - Immunology Allergy and Rheumatology, Baylor College of Medicine; Division of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University
| | - Philip Erice
- Program in Immunology, Baylor College of Medicine; Department of Medicine - Immunology Allergy and Rheumatology, Baylor College of Medicine
| | - Paul Porter
- Department of Medicine, Pulmonary, Critical Care, Sleep Medicine, Baylor College of Medicine
| | - Yun Zhang
- Program in Immunology, Baylor College of Medicine; Department of Pathology and Immunology, Baylor College of Medicine
| | - Mary Figueroa
- Department of Pediatrics, Research and Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center
| | - Joya Chandra
- Department of Pediatrics, Research and Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center
| | - Katherine Y King
- Department of Pediatrics, Section of Infectious Diseases, Baylor College of Medicine
| | - Farrah Kheradmand
- Department of Medicine, Pulmonary, Critical Care, Sleep Medicine, Baylor College of Medicine; Center for Translational Research on Inflammatory Diseases (CTRID), Michael E. DeBakey VA Medical Center
| | - Antony Rodríguez
- Department of Medicine - Immunology Allergy and Rheumatology, Baylor College of Medicine; Center for Translational Research on Inflammatory Diseases (CTRID), Michael E. DeBakey VA Medical Center;
| |
Collapse
|
68
|
Liu D, Meister M, Zhang S, Vong CI, Wang S, Fang R, Li L, Wang PG, Massion P, Ji X. Identification of lipid biomarker from serum in patients with chronic obstructive pulmonary disease. Respir Res 2020; 21:242. [PMID: 32957957 PMCID: PMC7507726 DOI: 10.1186/s12931-020-01507-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 09/11/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is the third leading cause of death in the United States with no effective treatment. The current diagnostic method, spirometry, does not accurately reflect the severity of COPD disease status. Therefore, there is a pressing unmet medical need to develop noninvasive methods and reliable biomarkers to detect early stages of COPD. Lipids are the fundamental components of cell membranes, and dysregulation of lipids was proven to be associated with COPD. Lipidomics is a comprehensive approach to all the pathways and networks of cellular lipids in biological systems. It is widely used for disease diagnosis, biomarker identification, and pathology disorders detection relating to lipid metabolism. METHODS In the current study, a total of 25 serum samples were collected from 5 normal control subjects and 20 patients with different stages of COPD according to the global initiative for chronic obstructive lung disease (GOLD) (GOLD stages I ~ IV, 5 patients per group). After metabolite extraction, lipidomic analysis was performed using electrospray ionization mass spectrometry (ESI-MS) to detect the serum lipid species. Later, the comparisons of individual lipids were performed between controls and patients with COPD. Orthogonal projections to latent structures discriminant analysis (OPLS-DA) and receiver operating characteristic (ROC) analysis were utilized to test the potential biomarkers. Finally, correlations between the validated lipidomic biomarkers and disease stages, age, FEV1% pack years and BMI were evaluated. RESULTS Our results indicate that a panel of 50 lipid metabolites including phospholipids, sphingolipids, glycerolipids, and cholesterol esters can be used to differentiate the presence of COPD. Among them, 10 individual lipid species showed significance (p < 0.05) with a two-fold change. In addition, lipid ratios between every two lipid species were also evaluated as potential biomarkers. Further multivariate data analysis and receiver operating characteristic (ROC: 0.83 ~ 0.99) analysis suggest that four lipid species (AUC:0.86 ~ 0.95) and ten lipid ratios could be potential biomarkers for COPD (AUC:0.94 ~ 1) with higher sensitivity and specificity. Further correlation analyses indicate these potential biomarkers were not affected age, BMI, stages and FEV1%, but were associated with smoking pack years. CONCLUSION Using lipidomics and statistical methods, we identified unique lipid signatures as potential biomarkers for diagnosis of COPD. Further validation studies of these potential biomarkers with large population may elucidate their roles in the development of COPD.
Collapse
Affiliation(s)
- Ding Liu
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
| | - Maureen Meister
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
- Department of Nutrition, Georgia State University, Atlanta, 30302, USA
| | - Shiying Zhang
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
| | - Chi-In Vong
- Department of Nutrition, Georgia State University, Atlanta, 30302, USA
| | - Shuaishuai Wang
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
| | - Ruixie Fang
- Department of Mathematics and Statistics, Georgia State University, Atlanta, GA, 30302, USA
| | - Lei Li
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
| | - Peng George Wang
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
| | - Pierre Massion
- Cancer Early Detection and Prevention Initiative, Vanderbilt Ingram Cancer Center; Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, TN, 37232, USA
| | - Xiangming Ji
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA.
- Department of Nutrition, Georgia State University, Atlanta, 30302, USA.
| |
Collapse
|
69
|
Kitjakrancharoensin P, Yasan K, Hongyantarachai K, Ratanachokthorani K, Thammasarn J, Kuwuttiwai D, Ekanaprach T, Jittakarm R, Nuntapravechpun R, Hotarapavanon S, Kulrattanarak S, Tongkaew S, Deemeechai S, Mungthin M, Rangsin R, Wongsrichanalai V, Sakboonyarat B. Prevalence and Risk Factors of Chronic Obstructive Pulmonary Disease Among Agriculturists in a Rural Community, Central Thailand. Int J Chron Obstruct Pulmon Dis 2020; 15:2189-2198. [PMID: 32982211 PMCID: PMC7501975 DOI: 10.2147/copd.s262050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 08/31/2020] [Indexed: 12/15/2022] Open
Abstract
Purpose The present study aimed to determine the prevalence and risk factors of chronic obstructive pulmonary disease (COPD) among agriculturists in a remote rural community in central Thailand. Methods A cross-sectional study was conducted in January 2020. Face-to-face interviews were conducted using standardized questionnaires to determine demographic characteristics and risk behaviors. COPD was defined by the spirometric criterion for airflow limitation constituting a postbronchodilator fixed ratio of FEV1/FVC <0.70 following the Global Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines 2019. Multivariable logistic regression analysis was used to determine the risk factors for COPD, and the magnitude of association was presented as adjusted odds ratio (AOR) with 95% confidence interval (95% CI). Results A total of 546 agriculturists were enrolled in the study. The overall prevalence of COPD was 5.5% (95% CI: 3.6–7.4). The prevalence of COPD among males was 8.0% (95% CI: 4.7–11.3), and 3.2% (95% CI: 1.1–5.2) among females. The risk factors of COPD included age ≥60 years old (AOR 2.7, 95% CI: 1.1–7.0), higher intensity of smoking (AOR 1.1, 95% CI: 1.0–1.1), swine farm worker (AOR 4.1, 95% CI: 1.7–10.3), cattle farm worker (AOR 3.3, 95% CI: 1.4–8.2) and home cooking (AOR 2.7, 95% CI: 0.8–9.7). Conclusion Our data emphasized that COPD was one of the significant health problems among agriculturists in a rural community. Agricultural jobs such as animal farmers and behavioral factors such as smoking were associated with COPD. Effective public health interventions, especially, modifying risk behaviors, should be promoted in remote rural areas to prevent the disease and reduce its morbidity and mortality.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Mathirut Mungthin
- Department of Pharmacology, Phramongkutklao College of Medicine, Bangkok, Thailand
| | - Ram Rangsin
- Department of Military and Community Medicine, Phramongkutklao College of Medicine, Bangkok, Thailand
| | | | - Boonsub Sakboonyarat
- Department of Military and Community Medicine, Phramongkutklao College of Medicine, Bangkok, Thailand
| |
Collapse
|
70
|
Zhuang H, Li N, Chen S, Shen Y, Zhan W, Xu X, Zhuo S. Correlation between level of autophagy and frequency of CD8 + T cells in patients with chronic obstructive pulmonary disease. J Int Med Res 2020; 48:300060520952638. [PMID: 32910701 PMCID: PMC7488904 DOI: 10.1177/0300060520952638] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Objective The pathogenesis of chronic obstructive pulmonary disease (COPD) remains elusive. Here, we assessed the correlation between CD8+ T cell frequencies and autophagy in COPD patients. Methods Subjects were divided into three groups (n = 30 patients/group): (1) COPD patients in the stable phase; (2) smokers with normal lung function; and (3) non-smokers with normal lung function. Flow cytometry was used to enumerate CD8+ T cell subsets (CD8+, CD8+ effector, and CD8+ memory T cells) and quantitate T-cell apoptosis. RT-PCR and western blotting were used to measure levels of LC3 and p62. Results Frequencies of CD8+ T cell subsets and expression of p62 and LC3 II/I were significantly higher in COPD patients compared with the other two groups, while the rate of apoptosis was lower. In COPD patients, LC3 II/I and p62 expression were positively correlated with CD8+ T cell subset frequencies. Moreover, a significant correlation was observed between LC3 II/I and p62 expression and T cell subset frequencies. Conclusion Autophagy level is positively correlated with the frequencies of CD8+ T cells, suggesting that autophagy might be involved in COPD pathogenesis.
Collapse
Affiliation(s)
- Hong Zhuang
- Respiratory Department, Longgang Central Hospital, Shenzhen, China
| | - Na Li
- Respiratory Department, Longgang Central Hospital, Shenzhen, China
| | - Sida Chen
- Respiratory Department, Longgang Central Hospital, Shenzhen, China
| | - Yan Shen
- Respiratory Department, Longgang Central Hospital, Shenzhen, China
| | - Wugen Zhan
- Respiratory Department, Longgang Central Hospital, Shenzhen, China
| | - Xiangqun Xu
- Respiratory Department, Longgang Central Hospital, Shenzhen, China
| | - Songming Zhuo
- Respiratory Department, Longgang Central Hospital, Shenzhen, China
| |
Collapse
|
71
|
Lu H, Xu D, Yang Y, Feng Q, Sun J, Li Q, Zhao J, Zhou X, Niu H, Liu J, He P, Ding Y. Genetic Polymorphisms of CYP2C9/ CYP2C19 in Chronic Obstructive Pulmonary Disease. COPD 2020; 17:595-600. [PMID: 32757668 DOI: 10.1080/15412555.2020.1780577] [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: 10/23/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a high incidence in the elderly and significantly affects the quality of life. CYP2C9 and CYP2C19 play an important role in tobacco-related diseases and inflammatory reactions. Thus, we aim to investigate the association between CYP2C9/CYP2C19 polymorphisms and the risk of COPD. In this study, a total of 821 subjects were recruited which include 313 COPD cases and 508 healthy controls. Seven SNPs of CYP2C9/CYP2C19 were selected for genotyping. The odds ratios (ORs) and 95% confidence interval (95% CI) were calculated using logistic regression analysis to evaluate the association between COPD risk and CYP2C9/CYP2C19 polymorphisms. Our study showed that A allele of rs9332220 in CYP2C9 was associated with reducing COPD risk (OR = 0.64, 95% CI = 0.43-0.94, p = 0.021). And rs111853758 G allele carrier could significantly decrease 0.35-fold COPD risk compared with T allele carrier (OR = 0.65, 95% CI = 0.45-0.96, p = 0.027). Furthermore, sex-based stratification analysis showed that rs9332220 and rs111853758 polymorphisms were associated with the risk of COPD in males. This is the first study to investigate the association between CYP2C9 and CYP2C19 genetic polymorphisms and COPD risk, which may give a new perspective on the prevention and diagnosis of COPD.
Collapse
Affiliation(s)
- Hui Lu
- Hainan Provincial Key Laboratory for human reproductive medicine and Genetic Research, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou, Hainan, China.,Department of Reproductive Medicine, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou, Hainan, China
| | - Dongchuan Xu
- Department of Emergency, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Yixiu Yang
- Department of General Practice, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Qiong Feng
- Hainan Affiliated Hospital of Hainan Medical University, University of South China, Haikou, Hainan, China
| | - Juan Sun
- Department of Emergency, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Quanni Li
- Department of Emergency, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Jie Zhao
- Hainan Affiliated Hospital of Hainan Medical University, University of South China, Haikou, Hainan, China
| | - Xiaoli Zhou
- Department of Emergency, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Huan Niu
- Department of Emergency, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Jianfang Liu
- Hainan Affiliated Hospital of Hainan Medical University, University of South China, Haikou, Hainan, China
| | - Ping He
- Department of Emergency, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Yipeng Ding
- Department of General Practice, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| |
Collapse
|
72
|
Pharmacological and non-pharmacological management of COPD; limitations and future prospects: a review of current literature. J Public Health (Oxf) 2020. [DOI: 10.1007/s10389-019-01021-3] [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
|
73
|
Mondejar-Parreño G, Perez-Vizcaino F, Cogolludo A. Kv7 Channels in Lung Diseases. Front Physiol 2020; 11:634. [PMID: 32676036 PMCID: PMC7333540 DOI: 10.3389/fphys.2020.00634] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 05/18/2020] [Indexed: 12/23/2022] Open
Abstract
Lung diseases constitute a global health concern causing disability. According to WHO in 2016, respiratory diseases accounted for 24% of world population mortality, the second cause of death after cardiovascular diseases. The Kv7 channels family is a group of voltage-dependent K+ channels (Kv) encoded by KCNQ genes that are involved in various physiological functions in numerous cell types, especially, cardiac myocytes, smooth muscle cells, neurons, and epithelial cells. Kv7 channel α-subunits are regulated by KCNE1–5 ancillary β-subunits, which modulate several characteristics of Kv7 channels such as biophysical properties, cell-location, channel trafficking, and pharmacological sensitivity. Kv7 channels are mainly expressed in two large groups of lung tissues: pulmonary arteries (PAs) and bronchial tubes. In PA, Kv7 channels are expressed in pulmonary artery smooth muscle cells (PASMCs); while in the airway (trachea, bronchus, and bronchioles), Kv7 channels are expressed in airway smooth muscle cells (ASMCs), airway epithelial cells (AEPs), and vagal airway C-fibers (VACFs). The functional role of Kv7 channels may vary depending on the cell type. Several studies have demonstrated that the impairment of Kv7 channel has a strong impact on pulmonary physiology contributing to the pathophysiology of different respiratory diseases such as cystic fibrosis, asthma, chronic obstructive pulmonary disease, chronic coughing, lung cancer, and pulmonary hypertension. Kv7 channels are now recognized as playing relevant physiological roles in many tissues, which have encouraged the search for Kv7 channel modulators with potential therapeutic use in many diseases including those affecting the lung. Modulation of Kv7 channels has been proposed to provide beneficial effects in a number of lung conditions. Therefore, Kv7 channel openers/enhancers or drugs acting partly through these channels have been proposed as bronchodilators, expectorants, antitussives, chemotherapeutics and pulmonary vasodilators.
Collapse
Affiliation(s)
- Gema Mondejar-Parreño
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain.,Ciber Enfermedades Respiratorias (Ciberes), Madrid, Spain.,Instituto de Investigación Sanitaria Gregorio Marañón (IISGM), Madrid, Spain
| | - Francisco Perez-Vizcaino
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain.,Ciber Enfermedades Respiratorias (Ciberes), Madrid, Spain.,Instituto de Investigación Sanitaria Gregorio Marañón (IISGM), Madrid, Spain
| | - Angel Cogolludo
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain.,Ciber Enfermedades Respiratorias (Ciberes), Madrid, Spain.,Instituto de Investigación Sanitaria Gregorio Marañón (IISGM), Madrid, Spain
| |
Collapse
|
74
|
Guo-Parke H, Linden D, Weldon S, Kidney JC, Taggart CC. Mechanisms of Virus-Induced Airway Immunity Dysfunction in the Pathogenesis of COPD Disease, Progression, and Exacerbation. Front Immunol 2020; 11:1205. [PMID: 32655557 PMCID: PMC7325903 DOI: 10.3389/fimmu.2020.01205] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 05/14/2020] [Indexed: 12/21/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is the integrated form of chronic obstructive bronchitis and pulmonary emphysema, characterized by persistent small airway inflammation and progressive irreversible airflow limitation. COPD is characterized by acute pulmonary exacerbations and associated accelerated lung function decline, hospitalization, readmission and an increased risk of mortality, leading to huge social-economic burdens. Recent evidence suggests ~50% of COPD acute exacerbations are connected with a range of respiratory viral infections. Nevertheless, respiratory viral infections have been linked to the severity and frequency of exacerbations and virus-induced secondary bacterial infections often result in a synergistic decline of lung function and longer hospitalization. Here, we review current advances in understanding the cellular and molecular mechanisms underlying the pathogenesis of COPD and the increased susceptibility to virus-induced exacerbations and associated immune dysfunction in patients with COPD. The multiple immune regulators and inflammatory signaling pathways known to be involved in host-virus responses are discussed. As respiratory viruses primarily target airway epithelial cells, virus-induced inflammatory responses in airway epithelium are of particular focus. Targeting virus-induced inflammatory pathways in airway epithelial cells such as Toll like receptors (TLRs), interferons, inflammasomes, or direct blockade of virus entry and replication may represent attractive future therapeutic targets with improved efficacy. Elucidation of the cellular and molecular mechanisms of virus infections in COPD pathogenesis will undoubtedly facilitate the development of these potential novel therapies that may attenuate the relentless progression of this heterogeneous and complex disease and reduce morbidity and mortality.
Collapse
Affiliation(s)
- Hong Guo-Parke
- Airway Innate Immunity Research Group, Wellcome Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Sciences, Queens University Belfast, Belfast, United Kingdom
| | - Dermot Linden
- Airway Innate Immunity Research Group, Wellcome Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Sciences, Queens University Belfast, Belfast, United Kingdom
| | - Sinéad Weldon
- Airway Innate Immunity Research Group, Wellcome Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Sciences, Queens University Belfast, Belfast, United Kingdom
| | - Joseph C Kidney
- Department of Respiratory Medicine Mater Hospital Belfast, Belfast, United Kingdom
| | - Clifford C Taggart
- Airway Innate Immunity Research Group, Wellcome Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry & Biomedical Sciences, Queens University Belfast, Belfast, United Kingdom
| |
Collapse
|
75
|
Burns RB, Anandaiah A, Rice MB, Smetana GW. Should You Recommend Inhaled Corticosteroids for This Patient With Chronic Obstructive Pulmonary Disease?: Grand Rounds Discussion From Beth Israel Deaconess Medical Center. Ann Intern Med 2020; 172:735-742. [PMID: 32479149 DOI: 10.7326/m20-1058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Approximately 12 million adults in the United States receive a diagnosis of chronic obstructive pulmonary disease (COPD) each year, and it is the fourth leading cause of death. Chronic obstructive pulmonary disease refers to a group of diseases that cause airflow obstruction and a constellation of symptoms, including cough, sputum production, and shortness of breath. The main risk factor for COPD is tobacco smoke, but other environmental exposures also may contribute. The GOLD (Global Initiative for Chronic Obstructive Lung Disease) 2020 Report aims to provide a nonbiased review of the current evidence for the assessment, diagnosis, and treatment of patients with COPD. To date, no conclusive evidence exists that any existing medications for COPD modify mortality. The mainstay of treatment for COPD is inhaled bronchodilators, whereas the role of inhaled corticosteroids is less clear. Inhaled corticosteroids have substantial risks, including an increased risk for pneumonia. Here, 2 experts, both pulmonologists, reflect on the care of a woman with severe COPD, a 50-pack-year smoking history, frequent COPD exacerbations, and recurrent pneumonia. They consider the indications for inhaled corticosteroids in COPD, when inhaled corticosteroids should be withdrawn, and what other treatments are available.
Collapse
Affiliation(s)
- Risa B Burns
- Beth Israel Deaconess Medical Center, Boston, Massachusetts (R.B.B., A.A., M.B.R., G.W.S.)
| | - Asha Anandaiah
- Beth Israel Deaconess Medical Center, Boston, Massachusetts (R.B.B., A.A., M.B.R., G.W.S.)
| | - Mary B Rice
- Beth Israel Deaconess Medical Center, Boston, Massachusetts (R.B.B., A.A., M.B.R., G.W.S.)
| | - Gerald W Smetana
- Beth Israel Deaconess Medical Center, Boston, Massachusetts (R.B.B., A.A., M.B.R., G.W.S.)
| |
Collapse
|
76
|
Martínez Luna M, Rojas Granados A, Lázaro Pacheco RI, Meza Alvarado JE, Ubaldo Reyes L, Ángeles Castellanos M. Enfermedad pulmonar obstructiva crónica (EPOC) Bases para el médico general. REVISTA DE LA FACULTAD DE MEDICINA 2020. [DOI: 10.22201/fm.24484865e.2020.63.3.06] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a chronic degenerative disease. It is a frequent, preventable and treatable disease characterized by persistent respiratory symptoms and airflow limitation. The National Institute of Respiratory Diseases
(INER), ranked COPD in 2016 in fourth place in the table of annual morbidity and mortality in Mexico. The prevalence of COPD is directly related to smoking; however, its development is multifactorial.
For its study it is important to know of any prior exposure to risk factors and of any manifestation of the main symptoms. To make a diagnosis, a detailed clinical history, where the largest amount of data is collected from every new possible COPD patient, and a spirometry are essential. Individual pharmacological treatment is necessary due to the great variability among COPD patients. The drugs used in the treatment of COPD reduce the symptoms, the frequency and severity of exacerbations; however, there is no medication that modifies the long-term deterioration of the lung function. Therefore, a basic knowledge of this condition by the medical doctor first contacted, is essential for the suspicion of COPD in its initial stage and thus, offer the patient immediate medical
intervention. The objective of the present work is to provide a basic overview of COPD to the general practitioner.
Key words:Chronic obstructive pulmonary disease; biomass; tobacco; chronic obstructive bronchitis; emphysema; respiratory system
Collapse
Affiliation(s)
- Monserrat Martínez Luna
- Universidad Veracruzana (UV). Centro de Investigaciones Biomédicas. Xalapa, Veracruz, México; Centro de Especialidades Médicas del Estado de Veracruz “Dr. Rafael Lucio”, Servicio de Neumología, Veracruz, Ver., México
| | - Adelina Rojas Granados
- Universidad Nacional Autónoma de México (UNAM). Facultad de Medicina. Departamento de Anatomía. Ciudad de México. México
| | - Ricardo Isidro Lázaro Pacheco
- Centro de Especialidades Médicas del Estado de Veracruz “Dr. Rafael Lucio"". Servicio de Neumología. Veracruz, Ver., México
| | - José Enrique Meza Alvarado
- Universidad Veracruzana (UV). Centro de Investigaciones Biomédicas. Xalapa, Veracruz, México; Centro de Especialidades Médicas del Estado de Veracruz “Dr. Rafael Lucio”, Servicio de Neumología, Veracruz, Ver., México
| | - Laura Ubaldo Reyes
- Universidad Nacional Autónoma de México (UNAM). Facultad de Medicina. Departamento de Anatomía. Ciudad de México. México
| | - Manuel Ángeles Castellanos
- Universidad Nacional Autónoma de México (UNAM). Facultad de Medicina. Departamento de Anatomía. Ciudad de México. México
| |
Collapse
|
77
|
Cai L, Wang XM, Fan LM, Shen JR, Liu YN, Golden AR. Socioeconomic variations in chronic obstructive pulmonary disease prevalence, diagnosis, and treatment in rural Southwest China. BMC Public Health 2020; 20:536. [PMID: 32306944 PMCID: PMC7169015 DOI: 10.1186/s12889-020-08687-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 04/13/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is a major and growing cause of morbidity and mortality throughout the world. However, there remains a limited understanding of the association between individual socioeconomic status (SES) and COPD diagnosis and treatment worldwide, including in China. This study investigates socioeconomic variations in prevalence, diagnosis, and treatment of COPD in rural China. METHODS The present study employed a cross-sectional survey design. The study population was composed of Han majority as well as Na Xi and Bai ethnic minority individuals 35 years of age and older living in Yunnan Province from 2017 to 2019. In total, 7534 individuals consented to participate in the study and complete a structured interview as well as a post-bronchodilator spirometry test. Multivariate logistic regression was used to analyze the association between individual socioeconomic status variables and the prevalence, diagnosis, and treatment of COPD. RESULTS The age-standardized prevalence of COPD in the present study was 14.3%. Prevalence differed by gender: prevalence for men was 17.1%, versus 11.4% for women (P = 0.0001). Overall, levels of diagnosis and treatment of COPD for participants with COPD were 24.2 and 23.1%, respectively. Multivariate logistic regression indicated that higher educational levels and good access to medical services was associated with an overall lower risk of COPD (P = 0.032 vs. P = 0.018) as well as a higher probability of COPD diagnosis among those with COPD (P = 0.0001 vs. P = 0.002). Participants with COPD with higher educational levels (P = 0.0001) and higher annual household incomes (P = 0.0001) as well as good access to medical services (P = 0.016) were more likely to receive COPD medications and treatment than their counterparts. While Na Xi and Bai participants had a higher probability of having COPD (P = 0.0001), they had a lower probability of having received a diagnosis or treatment for COPD than Han participants (P = 0.0001 vs. P = 0.0012). CONCLUSIONS Future interventions to further control COPD and improve diagnosis and treatment should focus on ethnic minority communities, and those with low education levels, low annual household incomes, and poor access to medical services.
Collapse
Affiliation(s)
- Le Cai
- School of Public Health, Kunming Medical University, 1168 Yu Hua Street Chun Rong Road, Cheng Gong New City, Kunming, 650500 China
| | - Xu-Ming Wang
- School of Public Health, Kunming Medical University, 1168 Yu Hua Street Chun Rong Road, Cheng Gong New City, Kunming, 650500 China
- The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Lu-Ming Fan
- School of Public Health, Kunming Medical University, 1168 Yu Hua Street Chun Rong Road, Cheng Gong New City, Kunming, 650500 China
| | - Jing-Rong Shen
- School of Public Health, Kunming Medical University, 1168 Yu Hua Street Chun Rong Road, Cheng Gong New City, Kunming, 650500 China
| | - Ying-Nan Liu
- School of Public Health, Kunming Medical University, 1168 Yu Hua Street Chun Rong Road, Cheng Gong New City, Kunming, 650500 China
| | - Allison Rabkin Golden
- School of Public Health, Kunming Medical University, 1168 Yu Hua Street Chun Rong Road, Cheng Gong New City, Kunming, 650500 China
| |
Collapse
|
78
|
Fruit and Vegetable Intake and the Risk of Chronic Obstructive Pulmonary Disease: A Dose-Response Meta-Analysis of Observational Studies. BIOMED RESEARCH INTERNATIONAL 2020; 2020:3783481. [PMID: 32219131 PMCID: PMC7057001 DOI: 10.1155/2020/3783481] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/13/2020] [Accepted: 02/05/2020] [Indexed: 01/30/2023]
Abstract
Object. Results on the associations of fruit and vegetable intake with risk of chronic obstructive pulmonary disease (COPD) are still in conflict. Hence, we conducted a meta-analysis to quantitatively evaluate the association between fruit and vegetable intake and the risk of COPD.
Collapse
|
79
|
Bi H, Wang G, Li Z, Zhou L, Zhang M, Ye J, Wang Z. Long Noncoding RNA (lncRNA) Maternally Expressed Gene 3 (MEG3) Participates in Chronic Obstructive Pulmonary Disease through Regulating Human Pulmonary Microvascular Endothelial Cell Apoptosis. Med Sci Monit 2020; 26:e920793. [PMID: 32201430 PMCID: PMC7111098 DOI: 10.12659/msm.920793] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/27/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD), a general airway disease, is featured by progressive and chronic immunoreaction in the lung. Increasing evidences have showed that cigarette smoking is the main reason in the COPD progression, and human pulmonary microvascular endothelial cell (HPMEC) apoptosis often be observed in COPD, while its pathogenesis is not yet fully described. Upregulation of long noncoding RNA (lncRNA) maternally expressed gene 3 (MEG3) was observed in COPD patients, but the specific mechanism of lncRNA MEG3 in COPD remains unknown. The objective of this research was to explore the role of lncRNA MEG3 in cigarette smoke extract (CSE)-induced HPMECs. MATERIAL AND METHODS HPMECs were induced by a series of concentrations of CSE (0%, 0.1%, 1%, and 10%). Then cell apoptosis was analyzed by flow cytometry. Cell apoptosis related proteins were tested using western blot assay. Finally, we applied knockdown and over-expression system to explore the lncRNA MEG3 functions in CSE-induced HPMECs. RESULTS Our results indicated that various concentrations of CSE (0%, 0.1%, 1%, and 10%) significantly promoted cell apoptosis, augmented caspase-3 activity, upregulated Bax expression, decreased Bcl-2 expression, and enhanced lncRNA MEG3 level in HPMECs. LncRNA MEG3-plasmid transfection resulted in the upregulation of lncRNA MEG3, more apoptotic HPMECs, and higher caspase-3 activity. While lncRNA MEG3 knockdown presented the opposite effects. Further investigation suggested that all the effects of CSE treatment on HPMECs were markedly reversed by lncRNA MEG3-shRNA (short hairpin RNA). CONCLUSIONS Our study illustrated a protective effect of lncRNA MEG3-shRNA on CSE-induced HPMECs, indicting lncRNA MEG3 can be a new therapeutic approach for COPD treatment.
Collapse
Affiliation(s)
- Hui Bi
- Department of Respiratory Medicine, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, P.R. China
| | - Gui Wang
- Department of Intensive Care Unit, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, P.R. China
| | - Zhiying Li
- Department of Respiratory Medicine, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, P.R. China
| | - Lin Zhou
- Department of Respiratory Medicine, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, P.R. China
| | - Ming Zhang
- Department of Respiratory Medicine, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, P.R. China
| | - Jiru Ye
- Department of Respiratory Medicine, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, P.R. China
| | - Zhigang Wang
- Department of Respiratory Medicine, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, P.R. China
| |
Collapse
|
80
|
Li X, Xu J, Li P. Rat bone mesenchymal stem cells exert antiproliferative effects on nicotine‑exposed T cells via iNOS production. Mol Med Rep 2020; 21:2267-2275. [PMID: 32186760 DOI: 10.3892/mmr.2020.11027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 02/14/2020] [Indexed: 11/05/2022] Open
Abstract
Adoptive transfer of bone marrow‑derived mesenchymal stem cells (BMSCs) significantly alleviates smoking‑induced chronic obstructive pulmonary disease (COPD) in rats. Considering the critical roles of T cells during COPD development, the present study aimed to further identify the molecular mechanisms underlying the antiproliferative effect of BMSCs on splenic T cells isolated from rats following chronic exposure to nicotine. Splenic T cells were co‑cultured with rat BMSCs at various ratios and subsequently, T‑cell proliferation was measured using the Cell Counting Kit‑8 assay. The effects of the inducible nitric oxide synthase (iNOS) inhibitor N‑nitro‑L‑arginine methylester (L‑NAME) and short hairpin (sh)RNA‑lentivirus‑mediated knockdown of iNOS in BMSCs on T‑cell proliferation were evaluated. The expression levels of iNOS and STAT5 phosphorylation in BMSCs and T cells, respectively, were assessed by reverse transcription‑quantitative PCR and western blotting. A higher ratio of BMSCs to T cells resulted in increased inhibition of T‑cell proliferation; therefore, the ratio of 1:20 was selected for further in vitro experiments. At a dose of 5 µM, L‑NAME displayed the strongest ability to reverse the antiproliferative effects of BMSCs in the co‑culture system. Both L‑NAME treatment and shRNA‑mediated knockdown of iNOS expression significantly decreased the suppressive effects of BMSCs, downregulated iNOS expression at the mRNA and protein levels in BMSCs, and enhanced STAT5 phosphorylation in T cells. BMSCs inhibited the proliferation of nicotine‑exposed T cells, which was associated with iNOS expression in BMSCs and decreased STAT5 phosphorylation in T cells. The present study indicated the potential mechanisms underlying the beneficial effects of BMSC infusion in patients with chronic smoking‑induced COPD and emphysema.
Collapse
Affiliation(s)
- Xiaoyan Li
- Department of Respiratory and Critical Care Medicine, Shanxi Academy of Medical Sciences, Shanxi Bethune Hospital, Taiyuan, Shanxi 030032, P.R. China
| | - Jianying Xu
- Department of Respiratory and Critical Care Medicine, Shanxi Academy of Medical Sciences, Shanxi Bethune Hospital, Taiyuan, Shanxi 030032, P.R. China
| | - Pingping Li
- Department of Respiratory and Critical Care Medicine, The Second Clinical Medical College, Shanxi Medical University, Taiyuan, Shanxi 030009, P.R. China
| |
Collapse
|
81
|
Huang WS, Lin CL, Tsai CH, Chang KH. Association of gout with CAD and effect of antigout therapy on CVD risk among gout patients. J Investig Med 2020; 68:972-979. [PMID: 32098832 PMCID: PMC7306869 DOI: 10.1136/jim-2019-001140] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/05/2020] [Indexed: 12/20/2022]
Abstract
Hyperuricemia has been identified as an independent risk factor for coronary artery disease (CAD), with a dose-response association. In this study, we explored the causal association between gout and antigout medication and the risk of incidental CAD. We sampled data from the National Health Insurance Research Database and recruited 37,091 patients as the gout cohort, and 37,091 controls. Our primary endpoint was the diagnosis of CAD during follow-up. The overall study population was followed up until CAD diagnosis, withdrawal from the National Health Insurance program, or the end of the study. Cox proportional hazards regression models were used to examine the effect of gout on the risk of CAD, represented by the HR with the 95% CI. Patients with gout were at greater risk of CAD, compared with those without gout: HR=1.49 after adjusting for potential confounders. Non-steroidal anti-inflammatory drugs and prednisolone use was associated with a reduced risk of CAD: HR=0.63 and 0.50, respectively. Patients with gout, treated with antigout medication, exhibited a reduced risk of CAD compared with non-gout patients. Among patients with gout, those on antigout therapy had 32% lower risk compared with those not on antigout therapy: adjusted HR=0.68, 95% CI 0.63 to 0.73. Gout increases the risk of CAD, and the use of antigout medication reduces CAD risk. These results indicate that gout or hyperuricemia is a modifiable risk factor for CAD.
Collapse
Affiliation(s)
- Wei-Shih Huang
- Department of Neurology, China Medical University Hospital and College of Medicine, China Medical University, Taichung, Taiwan
| | - Cheng-Li Lin
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
| | - Chon-Haw Tsai
- Department of Neurology, China Medical University Hospital and College of Medicine, China Medical University, Taichung, Taiwan
| | - Kuang-Hsi Chang
- Department of Medical Research, Tungs' Taichung Metroharbor Hospital, Taichung City, Taiwan .,Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan.,General Education Center, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| |
Collapse
|
82
|
Li M, Chen Y, Yao J, Lu S, Guan Y, Xu Y, Liu Q, Sun S, Mi Q, Mei J, Li X, Miao M, Zhao S, Zhu Z. Genome-Wide Association Study of Smoking Behavior Traits in a Chinese Han Population. Front Psychiatry 2020; 11:564239. [PMID: 33033484 PMCID: PMC7509597 DOI: 10.3389/fpsyt.2020.564239] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 08/17/2020] [Indexed: 01/12/2023] Open
Abstract
Tobacco use is one of the leading causes of preventable disease worldwide. Genetic studies have elucidated numerous smoking-associated risk loci in American and European populations. However, genetic determinants for cigarette smoking in Chinese populations are under investigated. In this study, a whole-genome sequencing (WGS)-based genome-wide association study (GWAS) was performed in a Chinese Han population comprising 620 smokers and 564 nonsmokers. Thirteen single-nucleotide polymorphisms (SNPs) of the raftlin lipid linker 1 (RFTN1) gene achieved genome-wide significance levels (P < 5 x 10-8) for smoking initiation. The rs139753473 from RFTN1 and six other suggestively significant loci from CUB and sushi multiple domains 1 (CSMD1) gene were also associated with cigarettes per day (CPD) in an independent Chinese sample consisting of 1,329 subjects (805 smokers and 524 nonsmokers). When treating males separately, associations between smoking initiation and PCAT5/ANKRD30A, two genes involved in cancer development, were identified and replicated. Within RFTN1, two haplotypes (i.e., C-A-C-G and A-G-T-C) formed by rs796812630-rs796584733-rs796349027-rs879511366 and three haplotypes (i.e., T-T-C-C-C, T-T-A-T-T, and C-A-A-T-T) formed by rs879401109-rs879453873-rs75180423-rs541378415-rs796757175 were strongly associated with smoking initiation. In addition, we also revealed two haplotypes (i.e., C-A-G-G and T-C-T-T derived from rs4875371-rs4875372-rs17070935-rs11991366) in the CSMD1 gene showing a significant association with smoking initiation. Further bioinformatics functional assessment suggested that RFTN1 may participate in smoking behavior through modulating immune responses or interactions with the glucocorticoid receptor alpha and the androgen receptor. Together, our results may help understand the mechanisms underlying smoking behavior in the Chinese Han population.
Collapse
Affiliation(s)
- Meng Li
- Joint Institute of Tobacco and Health, Yunnan Academy of Tobacco Science, Kunming, China
| | - Ying Chen
- Joint Institute of Tobacco and Health, Yunnan Academy of Tobacco Science, Kunming, China
| | - Jianhua Yao
- Joint Institute of Tobacco and Health, Yunnan Academy of Tobacco Science, Kunming, China
| | - Sheming Lu
- Joint Institute of Tobacco and Health, Yunnan Academy of Tobacco Science, Kunming, China
| | - Ying Guan
- Joint Institute of Tobacco and Health, Yunnan Academy of Tobacco Science, Kunming, China
| | - Yuqiong Xu
- Joint Institute of Tobacco and Health, Yunnan Academy of Tobacco Science, Kunming, China
| | - Qiang Liu
- Hangzhou Global Biotechnology and Bioinformatics Co. Ltd, Hangzhou, China
| | - Silong Sun
- Joint Institute of Tobacco and Health, Yunnan Academy of Tobacco Science, Kunming, China
| | - Qili Mi
- Joint Institute of Tobacco and Health, Yunnan Academy of Tobacco Science, Kunming, China
| | - Junpu Mei
- Joint Institute of Tobacco and Health, Yunnan Academy of Tobacco Science, Kunming, China
| | - Xuemei Li
- Joint Institute of Tobacco and Health, Yunnan Academy of Tobacco Science, Kunming, China
| | - Mingming Miao
- Joint Institute of Tobacco and Health, Yunnan Academy of Tobacco Science, Kunming, China
| | - Shancen Zhao
- Joint Institute of Tobacco and Health, Yunnan Academy of Tobacco Science, Kunming, China
| | - Zhouhai Zhu
- Joint Institute of Tobacco and Health, Yunnan Academy of Tobacco Science, Kunming, China
| |
Collapse
|
83
|
Gao H, Gao Y, Sun P, Shen J, Yao HJ, Fu SD, Meng C. Effect of physical therapy for chronic obstructive pulmonary disease: A protocol for an updated systematic review of randomized controlled trial. Medicine (Baltimore) 2019; 98:e17241. [PMID: 31567989 PMCID: PMC6756720 DOI: 10.1097/md.0000000000017241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Previous studies have reported that physical therapy (PT) can be used for the treatment of chronic obstructive pulmonary disease (COPD). However, its effectiveness is still inconclusive. This systematic review will aim to assess its effectiveness and safety for the treatment of patients with COPD. METHODS All randomized controlled trials (RCTs) literatures of PT for COPD will be searched from the databases of Cochrane Central Register of Controlled Trials (CENTRAL), EMBASE, MEDILINE, Web of Science, Cumulative Index to Nursing and Allied Health Literature, Allied and Complementary Medicine Database, Chinese Biomedical Literature Database, China National Knowledge Infrastructure, VIP Information, and Wanfang Data from inception to the present without any language restrictions. Two reviewers will independently perform the study selection, data extraction, and methodological quality assessment. A third reviewer will be invited to resolve any disagreements occurred between 2 reviewers. RESULTS The primary outcome is lung function. The secondary outcomes include symptoms, health-related quality of life, mortality, and adverse events. The outcome data will be pooled by using the models of random-effects or fixed-effects according to the detected heterogeneity. CONCLUSION The findings of this study will provide up-todated summary evidence for assessing the effectiveness and safety of PT for COPD.
Collapse
|
84
|
Cell Type- and Exposure-Specific Modulation of CD63/CD81-Positive and Tissue Factor-Positive Extracellular Vesicle Release in response to Respiratory Toxicants. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:5204218. [PMID: 31485294 PMCID: PMC6710792 DOI: 10.1155/2019/5204218] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 06/19/2019] [Accepted: 07/25/2019] [Indexed: 12/14/2022]
Abstract
Chronic exposure to respiratory stressors increases the risk for pulmonary and cardiovascular diseases. Previously, we have shown that cigarette smoke extract (CSE) triggers the release of CD63+CD81+ and tissue factor (TF)+ procoagulant extracellular vesicles (EVs) by bronchial epithelial cells via depletion of cell surface thiols. Here, we hypothesized that this represents a universal response for different pulmonary cell types and respiratory exposures. Using bead-based flow cytometry, we found that bronchial epithelial cells and pulmonary fibroblasts, but not pulmonary microvascular endothelial cells or macrophages, release CD63+CD81+ and TF+ EVs in response to CSE. Cell surface thiols decreased in all cell types upon CSE exposure, whereas depletion of cell surface thiols using bacitracin only triggered EV release by epithelial cells and fibroblasts. The thiol-antioxidant NAC prevented the EV induction by CSE in epithelial cells and fibroblasts. Exposure of epithelial cells to occupational silica nanoparticles and particulate matter (PM) from outdoor air pollution also enhanced EV release. Cell surface thiols were mildly decreased and NAC partly prevented the EV induction for PM10, but not for silica and PM2.5. Taken together, induction of procoagulant EVs is a cell type-specific response to CSE. Moreover, induction of CD63+CD81+ and TF+ EVs in bronchial epithelial cells appears to be a universal response to various respiratory stressors. TF+ EVs may serve as biomarkers of exposure and/or risk in response to respiratory exposures and may help to guide preventive treatment decisions.
Collapse
|
85
|
Huang X, Mu X, Deng L, Fu A, Pu E, Tang T, Kong X. The etiologic origins for chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis 2019; 14:1139-1158. [PMID: 31213794 PMCID: PMC6549659 DOI: 10.2147/copd.s203215] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 04/18/2019] [Indexed: 12/27/2022] Open
Abstract
COPD, characterized by long-term poorly irreversible airway limitation and persistent respiratory symptoms, has resulted in enormous challenges to human health worldwide, with increasing rates of prevalence, death, and disability. Although its origin was thought to be in the interactions of genetic with environmental factors, the effects of environmental factors on the disease during different life stages remain little known. Without clear mechanisms and radical cure for it, early screening and prevention of COPD seem to be important. In this review, we will discuss the etiologic origins for poor lung function and COPD caused by specific adverse effects during corresponding life stages, as well as try to find new insights and potential prevention strategies for this disease.
Collapse
Affiliation(s)
- Xinwei Huang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming City, Yunnan Province, People's Republic of China.,Medical School, Kunming University of Science and Technology, Kunming City, Yunnan Province, People's Republic of China
| | - Xi Mu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming City, Yunnan Province, People's Republic of China
| | - Li Deng
- The Pathology Department, First People's Hospital of Yunnan Province, Kunming City, Yunnan Province, People's Republic of China
| | - Aili Fu
- Department of Oncology, Yunfeng Hospital, Xuanwei City, Yunnan Province, People's Republic of China
| | - Endong Pu
- Department of Thoracic Surgery, Yunfeng Hospital, Xuanwei City, Yunnan Province, People's Republic of China
| | - Tao Tang
- Medical School, Kunming University of Science and Technology, Kunming City, Yunnan Province, People's Republic of China
| | - Xiangyang Kong
- Medical School, Kunming University of Science and Technology, Kunming City, Yunnan Province, People's Republic of China
| |
Collapse
|
86
|
Peng H, Guo T, Chen Z, Zhang H, Cai S, Yang M, Chen P, Guan C, Fang X. Hypermethylation of mitochondrial transcription factor A induced by cigarette smoke is associated with chronic obstructive pulmonary disease. Exp Lung Res 2019; 45:101-111. [PMID: 31198067 DOI: 10.1080/01902148.2018.1556748] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 11/21/2018] [Accepted: 12/04/2018] [Indexed: 02/08/2023]
Abstract
Purpose of the study: Cigarette smoking is a leading environmental contributor to chronic obstructive pulmonary disease (COPD), but its epigenetic regulation of mtTFA gene remains elusive. This study aims to explore the relationship of DNA methylation of mtTFA and cigarette smoking in COPD. Materials and Methods: We analyzed DNA methylation on mtTFA promoters in clinical samples from COPD patients and subjects with normal pulmonary function. Expression of mtTFA mRNA in the clinical samples and mtTFA mRNA and protein in human umbilical vein endothelial cells(HUVECs) treated with cigarette smoke extract (CSE) was evaluated. mtTFA mRNA and protein levels were measured to determine effects of demethylation agents on CSE-treated HUVECs. Results: The DNA methylation level of the mtTFA promoter was significantly increased in COPD group. Expression of mtTFA mRNA was downregulated in the lungs as a consequence of hypermethylation of mtTFA promoter. Expression of mtTFA mRNA and protein was downregulated in CSE-treated HUVECs as a consequence of hypermethylation of the mtTFA promoter. mtTFA expression in CSE-treated HUVECs was restored by the methylation inhibitor, 5-aza-2'-deoxycytidine(AZA). Conclusions: Cigarette smoke-induced hypermethylation of the mtTFA promoter is related to the initiation and progression of COPD. Our finding may provide a new strategy for the intervention of COPD by developing demethylation agents targeting mtTFA hypermethylation.
Collapse
Affiliation(s)
- Hong Peng
- a Department of Respiratory and Critical Care Medicine , The Second Xiangya Hospital of Central-South University , Changsha , PR China
- b b The Respiratory Disease Research Institute of Central South University , Changsha , PR China
- c c The Respiratory Disease Diagnosis and Treatment Center of Hunan Province , Changsha , PR China
| | - Ting Guo
- a Department of Respiratory and Critical Care Medicine , The Second Xiangya Hospital of Central-South University , Changsha , PR China
- b b The Respiratory Disease Research Institute of Central South University , Changsha , PR China
- c c The Respiratory Disease Diagnosis and Treatment Center of Hunan Province , Changsha , PR China
| | - Zhiyong Chen
- d d Department of Urology , Xiangya Hospital of Central-South University , Changsha , PR China
| | - Hongliang Zhang
- a Department of Respiratory and Critical Care Medicine , The Second Xiangya Hospital of Central-South University , Changsha , PR China
- b b The Respiratory Disease Research Institute of Central South University , Changsha , PR China
- c c The Respiratory Disease Diagnosis and Treatment Center of Hunan Province , Changsha , PR China
| | - Shan Cai
- a Department of Respiratory and Critical Care Medicine , The Second Xiangya Hospital of Central-South University , Changsha , PR China
- b b The Respiratory Disease Research Institute of Central South University , Changsha , PR China
- c c The Respiratory Disease Diagnosis and Treatment Center of Hunan Province , Changsha , PR China
| | - Min Yang
- a Department of Respiratory and Critical Care Medicine , The Second Xiangya Hospital of Central-South University , Changsha , PR China
- b b The Respiratory Disease Research Institute of Central South University , Changsha , PR China
- c c The Respiratory Disease Diagnosis and Treatment Center of Hunan Province , Changsha , PR China
| | - Ping Chen
- a Department of Respiratory and Critical Care Medicine , The Second Xiangya Hospital of Central-South University , Changsha , PR China
- b b The Respiratory Disease Research Institute of Central South University , Changsha , PR China
- c c The Respiratory Disease Diagnosis and Treatment Center of Hunan Province , Changsha , PR China
| | - Chaxiang Guan
- e Physiological Research Center , Xiangya Medical School of Central-South University , Changsha , PR China
| | - Xiang Fang
- f Department of Neurology , University of Texas Medical Branch , Galveston , Texas, USA
| |
Collapse
|
87
|
Haider SH, Oskuei A, Crowley G, Kwon S, Lam R, Riggs J, Mikhail M, Talusan A, Veerappan A, Kim JS, Caraher EJ, Nolan A. Receptor for advanced glycation end-products and environmental exposure related obstructive airways disease: a systematic review. Eur Respir Rev 2019; 28:28/151/180096. [PMID: 30918021 PMCID: PMC7006869 DOI: 10.1183/16000617.0096-2018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 02/09/2019] [Indexed: 12/11/2022] Open
Abstract
Background Our group has identified the receptor for advanced glycation end-products (RAGE) as a predictor of World Trade Center particulate matter associated lung injury. The aim of this systematic review is to assess the relationship between RAGE and obstructive airways disease secondary to environmental exposure. Methods A comprehensive search using PubMed and Embase was performed on January 5, 2018 utilising keywords focusing on environmental exposure, obstructive airways disease and RAGE and was registered with PROSPERO (CRD42018093834). We included original human research studies in English, focusing on pulmonary end-points associated with RAGE and environmental exposure. Results A total of 213 studies were identified by the initial search. After removing the duplicates and applying inclusion and exclusion criteria, we screened the titles and abstracts of 61 studies. Finally, 19 full-text articles were included. The exposures discussed in these articles include particulate matter (n=2) and cigarette smoke (n=17). Conclusion RAGE is a mediator of inflammation associated end-organ dysfunction such as obstructive airways disease. Soluble RAGE, a decoy receptor, may have a protective effect in some pulmonary processes. Overall, RAGE is biologically relevant in environmental exposure associated lung disease. Future investigations should focus on further understanding the role and therapeutic potential of RAGE in particulate matter exposure associated lung disease. RAGE is biologically relevant in environmental exposure associated lung disease. Future investigations should focus on further understanding the role and therapeutic potential of RAGE in particulate matter exposure associated lung diseasehttp://ow.ly/gfZz30o7otU
Collapse
Affiliation(s)
- Syed H Haider
- Dept of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, New York University School of Medicine, New York, NY, USA.,Bureau of Health Services and Office of Medical Affairs, Fire Department of New York, New York, NY, USA
| | - Assad Oskuei
- Dept of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, New York University School of Medicine, New York, NY, USA
| | - George Crowley
- Dept of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, New York University School of Medicine, New York, NY, USA
| | - Sophia Kwon
- Dept of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, New York University School of Medicine, New York, NY, USA
| | - Rachel Lam
- Dept of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, New York University School of Medicine, New York, NY, USA
| | - Jessica Riggs
- Dept of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, New York University School of Medicine, New York, NY, USA
| | - Mena Mikhail
- Dept of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, New York University School of Medicine, New York, NY, USA
| | - Angela Talusan
- Dept of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, New York University School of Medicine, New York, NY, USA
| | - Arul Veerappan
- Dept of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, New York University School of Medicine, New York, NY, USA
| | - James S Kim
- Dept of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, New York University School of Medicine, New York, NY, USA
| | - Erin J Caraher
- Dept of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, New York University School of Medicine, New York, NY, USA
| | - Anna Nolan
- Dept of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, New York University School of Medicine, New York, NY, USA .,Bureau of Health Services and Office of Medical Affairs, Fire Department of New York, New York, NY, USA.,Dept of Environmental Medicine, New York University School of Medicine, New York, NY, USA
| |
Collapse
|
88
|
Urwyler P, Abu Hussein N, Bridevaux PO, Chhajed PN, Geiser T, Grendelmeier P, Joos Zellweger L, Kohler M, Maier S, Miedinger D, Tamm M, Thurnheer R, Dieterle T, Leuppi JD. Predictive factors for exacerbation and re-exacerbation in chronic obstructive pulmonary disease: an extension of the Cox model to analyze data from the Swiss COPD cohort. Multidiscip Respir Med 2019; 14:7. [PMID: 30774953 PMCID: PMC6364405 DOI: 10.1186/s40248-019-0168-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 11/27/2018] [Indexed: 11/24/2022] Open
Abstract
Background The Swiss COPD cohort was established in 2006 to collect data in a primary care setting. The objective of this study was to evaluate possible predictive factors for exacerbation and re-exacerbation. Methods In order to predict exacerbation until the next visit based on the knowledge of exacerbation since the last visit, a multistate model described by Therneau and Grambsch was performed. Results Data of 1,247 patients (60.4% males, 46.6% current smokers) were analyzed, 268 (21.5%) did not fulfill spirometric diagnostic criteria for COPD. Data of 748 patients (63% males, 44.1% current smokers) were available for model analysis. In order to predict exacerbation an extended Cox Model was performed. Mean FEV1/FVC-ratio was 53.1% (±11.5), with a majority of patients in COPD GOLD classes 2 or 3. Hospitalization for any reason (HR1.7; P = 0.04) and pronounced dyspnea (HR for mMRC grade four 3.0; P < 0.001) at most recent visit as well as prescription of short-acting bronchodilators (HR1.7; P < 0.001), inhaled (HR1.2; P = 0.005) or systemic corticosteroids (HR1.8; P = 0.015) were significantly associated with exacerbation when having had no exacerbation at most recent visit. Higher FEV1/FVC (HR0.9; P = 0.008) and higher FEV1 values (HR0.9; P = 0.001) were protective. When already having had an exacerbation at the most recent visit, pronounced dyspnea (HR for mMRC grade 4 1.9; P = 0.026) and cerebrovascular insult (HR2.1; P = 0.003) were significantly associated with re-exacerbation. Physical activity (HR0.6; P = 0.031) and treatment with long-acting anticholinergics (HR0.7; P = 0.044) seemed to play a significant protective role. In a best subset model for exacerbation, higher FEV1 significantly reduced and occurrence of sputum increased the probability of exacerbation. In the same model for re-exacerbation, coronary heart disease increased and hospitalization at most recent visit seemed to reduce the risk for re-exacerbation. Conclusion Our data confirmed well-established risk factors for exacerbations whilst analyzing their predictive association with exacerbation and re-exacerbation. This study confirmed the importance of spirometry in primary care, not only for diagnosis but also as a risk evaluation for possible future exacerbations. Trial registration Our study got approval by local ethical committee in 2006 (EK Nr. 170/06) and was registered retrospectively on ClinicalTrials.gov (NCT02065921, 19th of February 2014).
Collapse
Affiliation(s)
- Pascal Urwyler
- 1University Clinic of Medicine, Cantonal Hospital Baselland, University of Basel, Rheinstrasse 26, 4410 Liestal, Switzerland
| | - Nebal Abu Hussein
- 2University Hospital Basel, University of Basel, Spitalstrasse 21, 4031 Basel, Switzerland
| | - Pierre O Bridevaux
- 3Hospital of Valais, University of Geneva, Avenue du Grand-Champsec 80, 1950 Sion, Switzerland
| | - Prashant N Chhajed
- 1University Clinic of Medicine, Cantonal Hospital Baselland, University of Basel, Rheinstrasse 26, 4410 Liestal, Switzerland
| | - Thomas Geiser
- 4University Hospital Bern (Inselspital), University of Bern, Freiburgstrasse 18, 3010 Bern, Switzerland
| | - Peter Grendelmeier
- 1University Clinic of Medicine, Cantonal Hospital Baselland, University of Basel, Rheinstrasse 26, 4410 Liestal, Switzerland
| | - Ladina Joos Zellweger
- 5St. Clara Hospital, University of Basel, Kleinriehenstrasse 30, 4002 Basel, Switzerland
| | - Malcolm Kohler
- 6University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091 Zürich, Switzerland
| | - Sabrina Maier
- 1University Clinic of Medicine, Cantonal Hospital Baselland, University of Basel, Rheinstrasse 26, 4410 Liestal, Switzerland
| | - David Miedinger
- 1University Clinic of Medicine, Cantonal Hospital Baselland, University of Basel, Rheinstrasse 26, 4410 Liestal, Switzerland
| | - Michael Tamm
- 2University Hospital Basel, University of Basel, Spitalstrasse 21, 4031 Basel, Switzerland
| | - Robert Thurnheer
- Cantonal Hospital of Muensterlingen, Spitalcampus 1, 8596 Münsterlingen, Switzerland
| | - Thomas Dieterle
- 1University Clinic of Medicine, Cantonal Hospital Baselland, University of Basel, Rheinstrasse 26, 4410 Liestal, Switzerland
| | - Joerg D Leuppi
- 1University Clinic of Medicine, Cantonal Hospital Baselland, University of Basel, Rheinstrasse 26, 4410 Liestal, Switzerland
| |
Collapse
|
89
|
Multi-target natural products as alternatives against oxidative stress in Chronic Obstructive Pulmonary Disease (COPD). Eur J Med Chem 2019; 163:911-931. [DOI: 10.1016/j.ejmech.2018.12.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 12/08/2018] [Accepted: 12/10/2018] [Indexed: 02/07/2023]
|
90
|
Tan WSD, Liao W, Peh HY, Vila M, Dong J, Shen HM, Wong WSF. Andrographolide simultaneously augments Nrf2 antioxidant defense and facilitates autophagic flux blockade in cigarette smoke-exposed human bronchial epithelial cells. Toxicol Appl Pharmacol 2018; 360:120-130. [PMID: 30291937 DOI: 10.1016/j.taap.2018.10.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/30/2018] [Accepted: 10/02/2018] [Indexed: 12/24/2022]
Abstract
Cigarette smoking is the leading cause of chronic obstructive pulmonary disease (COPD). Cigarette smoke heightens oxidative stress and impairs autophagy, advancing COPD progression. Andrographolide is a bioactive diterpenoid lactone isolated from the plant Andrographis paniculata which has been a traditional medicinal herb for respiratory diseases. As airway epithelial cells form the first interface to be exposed to cigarette smoke, this study aimed to explore the modulatory effects of andrographolide on oxidative stress and autophagy in human bronchial epithelial BEAS-2B cells exposed to cigarette smoke extract (CSE). CSE (2%) exposure increased autophagic markers p62 and LC3B-II levels in BEAS-2B cells. Andrographolide alone increased p62 and p-p62 (S349) but not LC3B-II in BEAS-2B cells. However, in the presence of CSE, andrographolide was able to simultaneously increase LC3B-II level and enhance antioxidant defense by decreasing oxidative stress and increasing total antioxidant capacity, through upregulation of nuclear Nrf2 via the p62-Nrf2 positive feedback loop. Using RFP-GFP-LC3B transfected BEAS-2B cells exposed to CSE, andrographolide was found to impair autophagosome fusion with lysosome, which may account for the moderate increase in activated caspase 3/7 and annexin V levels. Our findings revealed for the first time that andrographolide simultaneously upregulated antioxidant defense through the p62-Nrf2 loop and moderately induced apoptosis through impairment of autophagic flux in CSE-exposed bronchial epithelium. Andrographolide facilitated cigarette smoke-induced apoptosis may be a potential toxicological outcome or may protect against chronic inflammation and aberrant DNA repair. Validation of these in-vitro findings in an experimental COPD model by andrographolide is warranted.
Collapse
Affiliation(s)
- W S Daniel Tan
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, 16 Medical Drive, 117600, Singapore
| | - Wupeng Liao
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, 16 Medical Drive, 117600, Singapore
| | - Hong Yong Peh
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, 16 Medical Drive, 117600, Singapore
| | - Merima Vila
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, 16 Medical Drive, 117600, Singapore; Department of Biology, University of Toronto Mississauga, 3359 Mississauga Road, Mississauga L5L 1C6, Canada
| | - Jinrui Dong
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, 16 Medical Drive, 117600, Singapore
| | - Han-Ming Shen
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 2 Medical Drive, 117597, Singapore; NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, 28 Medical Drive, 117456, Singapore
| | - W S Fred Wong
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, 16 Medical Drive, 117600, Singapore; Immunology Program, Life Science Institute, National University of Singapore, 28 Medical Drive, 117456, Singapore; Singapore-HUJ Alliance for Research and Enterprise (SHARE), National University of Singapore, 1 CREATE Way, Innovation Wing, 138602, Singapore.
| |
Collapse
|
91
|
Dreher ML. Whole Fruits and Fruit Fiber Emerging Health Effects. Nutrients 2018; 10:E1833. [PMID: 30487459 PMCID: PMC6315720 DOI: 10.3390/nu10121833] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/21/2018] [Accepted: 11/22/2018] [Indexed: 02/07/2023] Open
Abstract
Less than 10% of most Western populations consume adequate levels of whole fruits and dietary fiber with typical intake being about half of the recommended levels. Evidence of the beneficial health effects of consuming adequate levels of whole fruits has been steadily growing, especially regarding their bioactive fiber prebiotic effects and role in improved weight control, wellness and healthy aging. The primary aim of this narrative review article is to examine the increasing number of health benefits which are associated with the adequate intake of whole fruits, especially fruit fiber, throughout the human lifecycle. These potential health benefits include: protecting colonic gastrointestinal health (e.g., constipation, irritable bowel syndrome, inflammatory bowel diseases, and diverticular disease); promoting long-term weight management; reducing risk of cardiovascular disease, type 2 diabetes and metabolic syndrome; defending against colorectal and lung cancers; improving odds of successful aging; reducing the severity of asthma and chronic obstructive pulmonary disease; enhancing psychological well-being and lowering the risk of depression; contributing to higher bone mineral density in children and adults; reducing risk of seborrheic dermatitis; and helping to attenuate autism spectrum disorder severity. Low whole fruit intake represents a potentially more serious global population health threat than previously recognized, especially in light of the emerging research on whole fruit and fruit fiber health benefits.
Collapse
Affiliation(s)
- Mark L Dreher
- Nutrition Science Solutions, LLC, Wimberley, 78676 TX, USA.
| |
Collapse
|
92
|
Conde Diez S, Viejo Casas A, Garcia Rivero JL, Lopez Caro JC, Ortiz Portal F, Diaz Saez G. Impact of a homeopathic medication on upper respiratory tract infections in COPD patients: Results of an observational, prospective study (EPOXILO). Respir Med 2018; 146:96-105. [PMID: 30665525 DOI: 10.1016/j.rmed.2018.11.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 11/14/2018] [Accepted: 11/15/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is a progressive lung disorder in which airflow is obstructed. Viral or bacterial upper respiratory tract infections (URTIs) may lead to exacerbations. Homeopathic medication administration to COPD patients during the influenza-exposure period may help to reduce the frequency of common URTIs. METHODS This prospective, observational, multicenter study was carried out in Cantabria, Spain. Patients with COPD were divided into two groups: group 1 received conventional treatment + homeopathic medication (diluted and dynamized extract of duck liver and heart; Boiron) (OG); group 2 received conventional treatment only (CG). The primary endpoint was the number of URTIs between the 4-5 months follow up (mean 4.72 ± 0.96) from basal to last visit. Secondary endpoints included the duration of URTIs, number and duration of COPD exacerbations, use of COPD drugs, changes in quality of life (QoL), compliance, and adverse events (AEs). RESULTS 219 patients were analyzed (OG = 109, CG = 110). There was a significant reduction in mean number of URTIs during the follow-up period in OG compared to CG (0.514 ± 0.722 vs. 1.037 ± 1.519, respectively; p = 0.014). Logistic regression analysis showed a 3.3-times higher probability of suffering ≥2 URTI episodes in CG (p = 0.003, n = 72). OG patients having ≥1 URTI also had a significant reduction in mean URTI duration per episode (3.57 ± 2.44 days OG vs. 5.22 ± 4.17 days CG; p = 0.012). There was no significant difference in mean number of exacerbations, mean duration of exacerbations, or QoL between OG and CG. There was a greater decrease in proportion of patients using corticosteroids for exacerbations between baseline and visit 2 in OG compared to CG (22.1% vs. 7.5% fewer respectively, p = 0.005). Exacerbator phenotype patients had a significant decrease in number of URTIs (0.54 ± 0.72 vs. 1.31 ± 1.81; p = 0.011), and fewer COPD exacerbations (0.9 ± 1.3 vs. 1.5 ± 1.7; p = 0.037) in OG vs. CG, respectively. CONCLUSIONS Homeopathic medication use during the influenza-exposure period may have a beneficial impact at reducing URTIs' number and duration in COPD patients and at reducing the number of COPD exacerbations in patients with the exacerbator phenotype. Further studies are needed to confirm the effects observed in this study.
Collapse
Affiliation(s)
- Susana Conde Diez
- Centro de Salud José Barros (Camargo), Avda. Bilbao S/n. Muriedas, 39600, Cantabria, Spain.
| | - Ana Viejo Casas
- Centro de Salud Pisueña-Cayón, C/El Ferial S/n. 39620 Sarón, Cantabria, Spain.
| | | | | | | | - Gualberto Diaz Saez
- Former Medical Director, BOIRON SIH, Madrid, Spain; CEDH (Centro Enseñanza y Desarrollo Homeopatía), Alcobendas, Spain.
| |
Collapse
|
93
|
Lai SW, Lin CL. Association between ankylosing spondylitis and chronic obstructive pulmonary disease in Taiwan. Eur J Intern Med 2018; 57:e28-e29. [PMID: 30098855 DOI: 10.1016/j.ejim.2018.08.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 08/04/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Shih-Wei Lai
- College of Medicine, China Medical University, Taichung, Taiwan; Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan.
| | - Cheng-Li Lin
- College of Medicine, China Medical University, Taichung, Taiwan; Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
| |
Collapse
|
94
|
Ibrahim BA, Al-Humaish S, Al-Obaide MAI. Tobacco Smoking, Lung Cancer, and Therapy in Iraq: Current Perspective. Front Public Health 2018; 6:311. [PMID: 30416993 PMCID: PMC6212484 DOI: 10.3389/fpubh.2018.00311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 10/09/2018] [Indexed: 01/16/2023] Open
Abstract
Tobacco smoking is a research topic of high interest to the public health in Iraq. Although Iraq is a country with a high percentage of smokers, we noticed the dearth of adequate studies and programs to deal with this problem. The percentage of smokers exceed 30% of the population and smoking problem becomes a permanent habit in adults and young people. The problems associated with tobacco smoking behavior related to individuals' post-traumatic stress disorder following post-war conflicts, and the social and cultural environment. The health consequences of tobacco smoking can harm almost every organ in the body, and there are reports confirmed the tobacco smoking is a high-risk factor for lung cancer and other diseases. The relative risk of lung cancer increases with increasing duration and intensity of smoking. Also, smoking associated with bladder, prostate, and head and neck cancers, in addition to respiratory diseases. Intervention efforts should focus on reducing the prevalence of cigarette smoking, introduce effective treatments for cancer and quit smoking. In this perspective article, we present our viewpoint and three scenarios to deal with the problem of tobacco smoking in Iraq. We recommend introducing educational, health and legislative policies for quitting smoking and using effective treatments for cancer.
Collapse
|
95
|
Fu X, Zhang F. Role of the HIF-1 signaling pathway in chronic obstructive pulmonary disease. Exp Ther Med 2018; 16:4553-4561. [PMID: 30542404 PMCID: PMC6257248 DOI: 10.3892/etm.2018.6785] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 05/25/2018] [Indexed: 12/18/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is the most common cause of chronic morbidity and mortality. However, the molecular mechanisms underlying COPD remain largely unknown. The purpose of the present study was to investigate the expression patterns of hypoxia-inducible factor 1α (HIF-1α), vascular endothelial growth factor (VEGF), and VEGF receptor 2 (R2) in regard to the HIF-1 signaling pathway in COPD. The expressions of HIF-1α, VEGF and VEGFR2 were examined and quantified in the human lung tissues of 102 subjects with a defined smoking status, with or without COPD. The expressions of HIF-1α, VEGF and VEGFR2 were observed to be increased in the lung tissues collected from smoking COPD subjects when compared with those tissues from smoking subjects without COPD and non-smoking subjects without COPD. The expression of HIF-1α was shown to be positively associated with the expression of VEGF and VEGFR2. In addition, increased expression of HIF-1α, VEGF and VEGFR2 reflected the disease severity of COPD. The key findings obtained from the present study indicated that high expression of HIF-1α, VEGF and VEGFR2 may be associated with decreased lung function and reduced quality of life, contributing to disease progression in COPD.
Collapse
Affiliation(s)
- Xiang Fu
- Department of Respiratory Medicine, The No. 5 Hospital of Xiamen, Xiamen, Fujian 361100, P.R. China
| | - Fengling Zhang
- Department of Respiratory Medicine, The No. 5 Hospital of Xiamen, Xiamen, Fujian 361100, P.R. China
| |
Collapse
|
96
|
Jing H, Liu L, Zhou J, Yao H. Inhibition of C-X-C Motif Chemokine 10 (CXCL10) Protects Mice from Cigarette Smoke-Induced Chronic Obstructive Pulmonary Disease. Med Sci Monit 2018; 24:5748-5753. [PMID: 30118441 PMCID: PMC6109363 DOI: 10.12659/msm.909864] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) is a type of obstructive lung disease characterized by long-term breathing problems and poor airflow. COPD can progress to persistent decline of pulmonary function. This study explored the effect of CXCL10 on COPD induced by cigarette smoke (CS) and its underlying mechanism. Material/Methods Wild-type (WT) mice were randomly assigned into 3 groups: the control group, the CS group, and the intervention group. Mice in the CS group were exposed to CS and mice in the CXCL10 group were exposed to CS and CXCL10 neutralizing antibody. At 24 h after the last CS exposure, body weight and lung functions of each mouse were recorded. Mice were then anesthetized for collecting bronchoalveolar lavage fluid (BALF) and lung tissues. Levels of interleukin-6 (IL-6), keratinocyte chemotactic factor (KC), and monocyte chemoattractant protein-1 (MCP-1) in supernatant and lung homogenate were detected by ELISA and real-time PCR (RT-PCR), respectively. For in vitro experiments, human bronchial epithelial cells 16HBE were stimulated with different concentrations of cigarette smoke extract (CSE) and CXCL10. Cell viability and levels of inflammatory cytokines in the cell supernatant were detected by Cell Counting Kit-8 (CCK-8) and ELISA assay, respectively. Results Our data showed significant weight loss and reduction of lung functions in mice in the CS group compared with those in the control group and intervention group. Increased levels of IL-6, KC, and MCP-1 in BALF and lung homogenate were observed in mice in the model group compared to those in the control group and intervention group. In vitro experiments also confirmed that CXCL10-neutralizing antibody can inhibit CSE-induced cell necrosis and activation of inflammatory cytokines. Conclusions Inhibited CXCL10 protects against COPD progression by decreasing secretion of inflammatory factors, which provides a new direction for the clinical prevention and treatment of COPD.
Collapse
Affiliation(s)
- Hongyu Jing
- Department of Respiratory Medicine, First Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Lingyun Liu
- Department of Andrology, First Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Junfeng Zhou
- Department of Dermatology and Venereology, First Hospital of Jilin University, Changchun, Jilin, China (mainland)
| | - Hanxin Yao
- Department of Clinical Laboratory, First Hospital of Jilin University, Changchun, Jilin, China (mainland)
| |
Collapse
|
97
|
Lin H, Qian ZM, Guo Y, Zheng Y, Ai S, Hang J, Wang X, Zhang L, Liu T, Guan W, Li X, Xiao J, Zeng W, Xian H, Howard SW, Ma W, Wu F. The attributable risk of chronic obstructive pulmonary disease due to ambient fine particulate pollution among older adults. ENVIRONMENT INTERNATIONAL 2018; 113:143-148. [PMID: 29425898 DOI: 10.1016/j.envint.2018.01.029] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 01/24/2018] [Accepted: 01/26/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND The linkage between ambient fine particle pollution (PM2.5) and chronic obstructive pulmonary disease (COPD) and the attributable risk remained largely unknown. This study determined the cross-sectional association between ambient PM2.5 and prevalence of COPD among adults ≥50 years of age. METHODS We surveyed 29,290 participants aged 50 years and above in this study. The annual average concentrations of PM2.5 derived from satellite data were used as the exposure indicator. A mixed effect model was applied to determine the associations and the burden of COPD attributable to PM2.5. RESULTS: Among the participants, 1872 (6.39%) were classified as COPD cases. Our analysis observed a threshold concentration of 30 μg/m3 in the PM2.5-COPD association, above which we found a linear positive exposure-response association between ambient PM2.5 and COPD. The odds ratio (OR) for each 10 μg/m3 increase in ambient PM2.5 was 1.21(95% CI: 1.13, 1.30). Stratified analyses suggested that males, older subjects (65 years and older) and those with lower education attainment might be the vulnerable subpopulations. We further estimated that about 13.79% (95% CI: 7.82%, 21.62%) of the COPD cases could be attributable to PM2.5 levels higher than 30 μg/m3 in the study population. CONCLUSION Our analysis indicates that ambient PM2.5 exposure could increase the risk of COPD and accounts for a substantial fraction of COPD among the study population.
Collapse
Affiliation(s)
- Hualiang Lin
- Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Zhengmin Min Qian
- College for Public Health & Social Justice, Saint Louis University, St. Louis, MO, USA
| | - Yanfei Guo
- Shanghai Municipal Centre for Disease Control and Prevention, Shanghai, China
| | - Yang Zheng
- Shanghai Municipal Centre for Disease Control and Prevention, Shanghai, China
| | - Siqi Ai
- Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Jian Hang
- School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xiaojie Wang
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - Lingli Zhang
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - Tao Liu
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - Weijie Guan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Xing Li
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - Jianpeng Xiao
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - Weilin Zeng
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - Hong Xian
- College for Public Health & Social Justice, Saint Louis University, St. Louis, MO, USA
| | - Steven W Howard
- College for Public Health & Social Justice, Saint Louis University, St. Louis, MO, USA
| | - Wenjun Ma
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China.
| | - Fan Wu
- Shanghai Municipal Centre for Disease Control and Prevention, Shanghai, China.
| |
Collapse
|
98
|
Lee PN, Forey BA, Coombs KJ, Hamling JS, Thornton AJ. Epidemiological evidence relating environmental smoke to COPD in lifelong non-smokers: a systematic review. F1000Res 2018. [PMID: 32089819 DOI: 10.12688/f1000research.13887.1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Background: Some evidence suggests environmental tobacco smoke (ETS) might cause chronic obstructive pulmonary disease (COPD). We reviewed available epidemiological data in never smokers. Methods: We identified epidemiological studies providing estimates of relative risk (RR) with 95% confidence interval (CI) for various ETS exposure indices. Confounder-adjusted RRs for COPD were extracted, or derived using standard methods. Meta-analyses were conducted for each exposure index, with tests for heterogeneity and publication bias. For the main index (spouse ever smoked or nearest equivalent), analyses investigated variation in RR by location, publication period, study type, sex, diagnosis, study size, confounder adjustment, never smoker definition, and exposure index definition. Results: Twenty-eight relevant studies were identified; nine European or Middle Eastern, nine Asian, eight American and two from multiple countries. Five were prospective, seven case-control and 16 cross-sectional. The COPD definition involved death or hospitalisation in seven studies, GOLD stage 1+ criteria in twelve, and other definitions in nine. For the main index, random-effects meta-analysis of 33 heterogeneous (p<0.001) estimates gave a RR of 1.20 (95%CI 1.08-1.34). Higher estimates for females (1.59,1.16-2.19, n=11) than males (1.29,0.94-1.76, n=7) or sexes combined (1.10,0.99-1.22, n=15 where sex-specific not available), and lower estimates for studies of 150+ cases (1.08,0.97-1.20, n=13) partly explained the heterogeneity. Estimates were higher for Asian studies (1.34,1.08-1.67, n=10), case-control studies (1.55,1.04-2.32, n=8), and COPD mortality or hospitalisation (1.40,1.12-1.74, n=11). Some increase was seen for severer COPD (1.29,1.10-1.52, n=7). Dose-response evidence was heterogeneous. Evidence for childhood (0.88,0.72-1.07, n=2) and workplace (1.12,0.77-1.64, n=4) exposure was limited, but an increase was seen for overall adulthood exposure (1.20,1.03-1.39, n=17). We discuss study weaknesses that may bias estimation of the association of COPD with ETS. Conclusions: Although the evidence suggests ETS increases COPD, study weaknesses and absence of well-designed large studies precludes reliable inference of causality. More definitive evidence is required.
Collapse
Affiliation(s)
- Peter N Lee
- P.N. Lee Statistics and Computing Ltd, Sutton, Surrey, SM2 5DA, UK
| | - Barbara A Forey
- P.N. Lee Statistics and Computing Ltd, Sutton, Surrey, SM2 5DA, UK
| | | | - Jan S Hamling
- P.N. Lee Statistics and Computing Ltd, Sutton, Surrey, SM2 5DA, UK
| | - Alison J Thornton
- Independent Consultant in Statistics, Okehampton, Devon, EX20 1SG, UK
| |
Collapse
|
99
|
Lee PN, Forey BA, Coombs KJ, Hamling JS, Thornton AJ. Epidemiological evidence relating environmental smoke to COPD in lifelong non-smokers: a systematic review. F1000Res 2018; 7:146. [PMID: 32089819 PMCID: PMC6953425 DOI: 10.12688/f1000research.13887.3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/31/2018] [Indexed: 01/01/2023] Open
Abstract
Background: Some evidence suggests environmental tobacco smoke (ETS) might cause chronic obstructive pulmonary disease (COPD). We reviewed available epidemiological data in never smokers. Methods: We identified epidemiological studies providing estimates of relative risk (RR) with 95% confidence interval (CI) for various ETS exposure indices. Confounder-adjusted RRs for COPD were extracted, or derived using standard methods. Meta-analyses were conducted for each exposure index, with tests for heterogeneity and publication bias. For the main index (spouse ever smoked or nearest equivalent), analyses investigated variation in RR by location, publication period, study type, sex, diagnosis, study size, confounder adjustment, never smoker definition, and exposure index definition. Results: Twenty-eight relevant studies were identified; nine European or Middle Eastern, nine Asian, eight American and two from multiple countries. Five were prospective, seven case-control and 16 cross-sectional. The COPD definition involved death or hospitalisation in seven studies, GOLD stage 1+ criteria in twelve, and other definitions in nine. For the main index, random-effects meta-analysis of 33 heterogeneous (p<0.001) estimates gave a RR of 1.20 (95%CI 1.08-1.34). Higher estimates for females (1.59,1.16-2.19, n=11) than males (1.29,0.94-1.76, n=7) or sexes combined (1.10,0.99-1.22, n=15 where sex-specific not available), and lower estimates for studies of 150+ cases (1.08,0.97-1.20, n=13) partly explained the heterogeneity. Estimates were higher for Asian studies (1.34,1.08-1.67, n=10), case-control studies (1.55,1.04-2.32, n=8), and COPD mortality or hospitalisation (1.40,1.12-1.74, n=11). Some increase was seen for severer COPD (1.29,1.10-1.52, n=7). Dose-response evidence was heterogeneous. Evidence for childhood (0.88,0.72-1.07, n=2) and workplace (1.12,0.77-1.64, n=4) exposure was limited, but an increase was seen for overall adulthood exposure (1.20,1.03-1.39, n=17). We discuss study weaknesses that may bias estimation of the association of COPD with ETS. Conclusions: Although the evidence suggests ETS increases COPD, study weaknesses and absence of well-designed large studies precludes reliable inference of causality. More definitive evidence is required.
Collapse
Affiliation(s)
- Peter N. Lee
- P.N. Lee Statistics and Computing Ltd, Sutton, Surrey, SM2 5DA, UK
| | - Barbara A. Forey
- P.N. Lee Statistics and Computing Ltd, Sutton, Surrey, SM2 5DA, UK
| | | | - Jan S. Hamling
- P.N. Lee Statistics and Computing Ltd, Sutton, Surrey, SM2 5DA, UK
| | | |
Collapse
|
100
|
Li D, Wang J, Sun D, Gong X, Jiang H, Shu J, Wang Z, Long Z, Chen Y, Zhang Z, Yuan L, Guan R, Liang X, Li Z, Yao H, Zhong N, Lu W. Tanshinone IIA sulfonate protects against cigarette smoke-induced COPD and down-regulation of CFTR in mice. Sci Rep 2018; 8:376. [PMID: 29321495 PMCID: PMC5762644 DOI: 10.1038/s41598-017-18745-5] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 12/16/2017] [Indexed: 12/31/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a chronic lung disease characterized by abnormal inflammation, persistent and progressive lung function decline. The anti-inflammatory actions of tanshinone IIA, which is the most important active component from Chinese herbal medicine Danshen, have been well studied. However, it remains unknown whether sodium tanshinone IIA sulfonate (STS) protects against the development of COPD. Here we found that STS inhalation (5 mg/kg, 30 min per session, twice a day) significantly attenuated lung function decline, airspace enlargement, mucus production, bronchial collagen deposition, inflammatory responses and oxidative stress caused by cigarette smoke (CS) and lipopolysaccharide (LPS) exposures in mice. Moreover, treatment with STS (10 μg/ml) reduced CS extract (CSE)-induced IL-6 and IL-8 secretion in human bronchial epithelial (16HBE) cells. The anti-inflammatory actions of STS were associated with inhibition of ERK1/2 and NF-κB activations. Interestingly, STS inhibited CS-induced reduction of cystic fibrosis transmembrane conductance regulator (CFTR) in mouse lungs and in 16HBE cells. Treatment with a specific CFTR inhibitor CFTR-Inh172 augmented CSE-induced ERK1/2 and NF-κB-dependent inflammatory responses, but abolished the inhibitory action of STS on IL-6 and IL-8 secretion in 16HBE cells. These results demonstrate that CS-induced COPD and down-regulation of CFTR are prevented by STS.
Collapse
Affiliation(s)
- Defu Li
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jian Wang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Dejun Sun
- Department of Respiratory Medicine, The People's Hospital of Inner Mogolia, Hohhot, 010020, China
| | - Xuefang Gong
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Hua Jiang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jiaze Shu
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ziyi Wang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Zhen Long
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yiguan Chen
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester City, Britain, UK
| | - Zili Zhang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Liang Yuan
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ruijuan Guan
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xue Liang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ziying Li
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Hongwei Yao
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Nanshan Zhong
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wenju Lu
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China. .,Department of Laboratory Medicine, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China. .,Sino-French Hoffmann Immunology Institute, Guangzhou Medical University, Guangzhou, Guangdong, China.
| |
Collapse
|