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Menson KE, Coleman SRM. Smoking and pulmonary health in women: A narrative review and behavioral health perspective. Prev Med 2024; 185:108029. [PMID: 38851402 DOI: 10.1016/j.ypmed.2024.108029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 05/24/2024] [Accepted: 06/04/2024] [Indexed: 06/10/2024]
Abstract
OBJECTIVE Cigarette smoking prevalence has declined slower among women than men, and smoking-related pulmonary disease (PD) has risen among women. Given these trends, there is a critical need to understand and mitigate PD risk among women who smoke. The purpose of this narrative review and commentary is to highlight important evidence from the literature on smoking and PD among women. METHODS This review focuses broadly on examining cigarette smoking and PD among women within six topic areas: (1) demographic characteristics and prevalence of smoking, (2) smoking behavior, (3) lung cancer, (4) obstructive PD, (5) diagnostic and treatment disparities, and (6) gaps in the literature and potential directions for future research and treatment. RESULTS Growing evidence indicates that compared to men, women are at increased risk for developing smoking-related PD and poorer PD outcomes. Gender disparities in smoking-related PD may be largely accounted for by genetic differences and sex hormones contributing to PD pathogenesis and presentation, smoking behavior, nicotine dependence, and pathogen/carcinogen clearance. Moreover, gender disparities in smoking-related PD may be exacerbated by important social determinants (e.g., women with less formal education and those from minoritized groups may be at especially high risk for poor PD outcomes due to higher rates of smoking). CONCLUSION Rising rates of smoking-related PD among women risk widening diagnostic and treatment disparities. Ongoing research is needed to explore potentially complex relationships between sex, gender, and smoking-related PD processes and outcomes, and to improve smoking-cessation and PD treatment for women.
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Affiliation(s)
- Katherine E Menson
- Division of Pulmonary and Critical Care Medicine, University of Vermont, Burlington, VT, USA; Larner College of Medicine, University of Vermont, Burlington, VT, USA.
| | - Sulamunn R M Coleman
- Department of Psychiatry, University of Vermont, Burlington, VT, USA; Vermont Center on Behavior and Health, University of Vermont, Burlington, VT, USA
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2
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Gilworth G, Harris K, Morgan TL, Ayis S, Fox-Rushby J, Godfrey E, Hopkinson NS, Lewin S, Lim KK, Spinou A, Taylor SJC, White P. The IMPROVE trial: study protocol for a pragmatic cluster randomised controlled trial to assess the effectiveness of using lay health workers to improve uptake and completion of pulmonary rehabilitation in patients with chronic obstructive pulmonary disease. Trials 2024; 25:194. [PMID: 38500191 PMCID: PMC10949634 DOI: 10.1186/s13063-024-07998-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 02/21/2024] [Indexed: 03/20/2024] Open
Abstract
BACKGROUND Pulmonary rehabilitation (PR) is a programme of exercise and education and the most effective treatment for the symptoms and disability associated with chronic obstructive pulmonary disease. However, the benefits of PR are limited by poor uptake and completion. This trial will determine whether using trained volunteer lay health workers, called "PR buddies," improves uptake and completion of PR and is cost-effective. This trial protocol outlines the methods for evaluating effectiveness, cost-effectiveness, and acceptability. METHODS The IMPROVE trial is a pragmatic, open, cluster randomised controlled trial planned in 38 PR services across England and Wales. PR services will be randomised to either intervention arm-offering support from PR buddies to patients with chronic obstructive pulmonary disease-or to usual care as the control arm. PR staff in trial sites randomised to the intervention arm will receive training in recruiting and training PR buddies. They will deliver training to volunteers, recruited from among people who have recently completed PR in their service. The 3-day PR-buddy training programme covers communication skills, confidentiality, boundaries of the PR-buddy role and behaviour change techniques to help patients overcome obstacles to attending PR. An internal pilot will test the implementation of the trial in eight sites (four intervention sites and four in control arm). The primary outcome of the trial is the uptake and completion of PR. A process evaluation will investigate the acceptability of the intervention to patients, PR staff and the volunteer PR buddies, and intervention fidelity. We will also conduct a cost-effectiveness analysis. DISCUSSION Improving outcomes for chronic obstructive pulmonary disease and access to PR are priorities for the UK National Health Service (NHS) in its long-term plan. The trial hypothesis is that volunteer PR buddies, who are recruited and trained by local PR teams, are an effective and cost-effective way to improve the uptake and completion rates of PR. The trial is pragmatic, since it will test whether the intervention can be incorporated into NHS PR services. Information obtained in this trial may be used to influence policy on the use of PR buddies in PR and other similar services in the NHS. TRIAL REGISTRATION ISRCTN12658458. Registered on 23/01/2023.
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Affiliation(s)
- Gill Gilworth
- Academic Department of Rehabilitation Medicine, Faculty of Medicine and Health, University of Leeds, Sheffield, UK
| | - Katherine Harris
- School of Life Course & Population Sciences, Faculty of Life Sciences & Medicine, King's College London, Addison House, London, SE1 IUL, UK
| | - Toby L Morgan
- School of Life Course & Population Sciences, Faculty of Life Sciences & Medicine, King's College London, Addison House, London, SE1 IUL, UK
| | - Salma Ayis
- School of Life Course & Population Sciences, Faculty of Life Sciences & Medicine, King's College London, Addison House, London, SE1 IUL, UK
| | - Julia Fox-Rushby
- School of Life Course & Population Sciences, Faculty of Life Sciences & Medicine, King's College London, Addison House, London, SE1 IUL, UK
| | - Emma Godfrey
- School of Mental Health and Psychological Sciences, Institute of Psychiatry, Psychology & Neuroscience, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | | | - Simon Lewin
- Department of Health Sciences Ålesund, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
- Health Systems Research Unit, South African Medical Research Council, Cape Town, South Africa
- Centre for Epidemic Interventions Research, Norwegian Institute of Public Health, Oslo, Norway
| | - Ka Keat Lim
- School of Life Course & Population Sciences, Faculty of Life Sciences & Medicine, King's College London, Addison House, London, SE1 IUL, UK
| | - Arietta Spinou
- School of Life Course & Population Sciences, Faculty of Life Sciences & Medicine, King's Centre for Lung Health, King's College London, London, UK
| | - Stephanie J C Taylor
- Wolfson Institute of Population Health, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Patrick White
- School of Life Course & Population Sciences, Faculty of Life Sciences & Medicine, King's College London, Addison House, London, SE1 IUL, UK.
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Nghiem VT, Jin J, Mennemeyer ST, Wong FL. Health-related risk behaviors among U.S. childhood cancer survivors: a nationwide estimate. BMC Cancer 2024; 24:180. [PMID: 38321375 PMCID: PMC10845633 DOI: 10.1186/s12885-024-11894-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 01/17/2024] [Indexed: 02/08/2024] Open
Abstract
BACKGROUND Childhood cancer survivors (CCS) are subject to a substantial burden of treatment-related morbidity. Engaging in health protective behaviors and eliminating risk behaviors are critical to preventing chronic diseases and premature deaths. This study is aimed to provide updated information on currently smoking, physical inactivity, binge drinking patterns and associated factors among CCS using a nationwide dataset. METHODS We constructed a sample of CCS (cancer diagnosis at ages < 21y) and healthy controls (matched on age, sex, residency, race/ethnicity) using 2020 Behavioral Risk Factor Surveillance System. We used Chi-square tests and Wilcoxon rank-sum test to examine differences in sociodemographics and clinical characteristics between two groups. Logistic, ordinal regression and multivariable models (conditional models for matching) were used to determine factors associated with risk behaviors. RESULTS The final sample (18-80y) included 372 CCS and 1107 controls. Compared to controls, CCS had a similar proportion of binge drinking (~ 18%) but higher prevalence of currently smoking (26.6% vs. 14.4%, p < 0.001), physical inactivity (23.7% vs. 17.7%, p = 0.012), and of having 2-or-3 risk behaviors (17.2% vs. 8.1%, p < 0.001). Younger age, lower educational attainment, and having multiple chronic health conditions were associated with engaging in more risk behaviors among CCS. Females, compared to male counterparts, had lower odds of binge drinking (adjusted odds ratio (aOR) = 0.30, 95% confidence interval (CI): 0.16-0.57) among CCS but not in all sample. Having multiple chronic health conditions increased odds of both currently smoking (aOR = 3.52 95%CI: 1.76-7.02) and binge drinking (aOR = 2.13 95%CI: 1.11-4.08) among CCS while it only increased odds of currently smoking in all sample. DISCUSSION Our study provided risk behavior information for wide age-range CCS, which is currently lacking. Every one in four CCS was currently smoking. Interventions targeting risk behavior reduction should focus on CCS with multiple chronic health conditions.
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Affiliation(s)
- Van T Nghiem
- Department of Health Policy and Organization, University of Alabama at Birmingham School of Public Health, Birmingham, AL, USA.
| | - Jing Jin
- Department of Health Policy and Organization, University of Alabama at Birmingham School of Public Health, Birmingham, AL, USA
| | - Stephen T Mennemeyer
- Department of Health Policy and Organization, University of Alabama at Birmingham School of Public Health, Birmingham, AL, USA
| | - F Lennie Wong
- Department of Population Sciences, City of Hope, Duarte, CA, USA
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Vartiainen VA, jousilahti P, Laatikainen T, Vartiainen E. Contribution of smoking change to 45-year trend in prevalence of chronic bronchitis in Finland. Scand J Public Health 2023; 51:1189-1195. [PMID: 35722986 PMCID: PMC10642213 DOI: 10.1177/14034948221104351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 04/19/2022] [Accepted: 05/11/2022] [Indexed: 11/17/2022]
Abstract
AIMS Tobacco smoking has been identified as the most important risk factor of chronic bronchitis. The aim of this study was to assess the contribution of smoking to the trends in prevalence of chronic bronchitis among men and women in Finland. METHODS For this purpose, we analysed questionnaires included in national FINRISK and FinHealth studies conducted between 1972 and 2017 in 5-year intervals. A total of 26,475 men and 28,684 women aged 30-59 years were included in the analysis. In addition to smoking, age and socioeconomic status were used as risk factors in the logistic regression model. RESULTS Smoking in Finland has declined from 51% to 23% in men between 1972 and 2017. In women, it increased from 11% in 1972 to 23% in 2002, with a following decrease to 16% in 2017. The prevalence of chronic bronchitis has generally followed the trend of smoking. The population attributable risk was 60% in men and 49% in women. A decrease in chronic bronchitis was observed in male never-smokers. CONCLUSIONS Smoking is currently declining in Finland in both men and women. As result, the prevalence of chronic bronchitis is declining and it is approaching baseline independent of smoking. The decrease in never-smokers has yet to be explained.
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Affiliation(s)
- Ville A Vartiainen
- Department of Public Health and Welfare, Finnish institute for Health and Welfare, Helsinki, Finland
- Individualized Drug Therapy Research Program, University of Helsinki, Helsinki, Finland
- Department of Pulmonary Medicine, Helsinki University Hospital, Helsinki, Finland
| | - Pekka jousilahti
- Department of Public Health and Welfare, Finnish institute for Health and Welfare, Helsinki, Finland
| | - Tiina Laatikainen
- Department of Public Health and Welfare, Finnish institute for Health and Welfare, Helsinki, Finland
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Helsinki, Finland
- Joint Municipal Authority for North Karelia Social and Health Care (Siun Sote), Helsinki, Finland
| | - Erkki Vartiainen
- Department of Public Health and Welfare, Finnish institute for Health and Welfare, Helsinki, Finland
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Karabegović I, Maas SCE, Shuai Y, Ikram MA, Stricker B, Aerts J, Brusselle G, Lahousse L, Voortman T, Ghanbari M. Smoking-related dysregulation of plasma circulating microRNAs: the Rotterdam study. Hum Genomics 2023; 17:61. [PMID: 37430296 DOI: 10.1186/s40246-023-00504-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 06/26/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) are post-transcriptional regulators of gene expression. Differential miRNA expression, which is widely shown to be associated with the pathogenesis of various diseases, can be influenced by lifestyle factors, including smoking. This study aimed to investigate the plasma miRNA signature of smoking habits, the potential effect of smoking cessation on miRNA levels, and relate the findings with lung cancer incidence. RESULTS A targeted RNA-sequencing approach measured plasma miRNA levels in 2686 participants from the population-based Rotterdam study cohort. The association between cigarette smoking (current versus never) and 591 well-expressed miRNAs was assessed via adjusted linear regression models, identifying 41 smoking-associated miRNAs that passed the Bonferroni-corrected threshold (P < 0.05/591 = 8.46 × 10-5). Moreover, we found 42 miRNAs with a significant association (P < 8.46 × 10-5) between current (reference group) and former smokers. Then, we used adjusted linear regression models to explore the effect of smoking cessation time on miRNA expression levels. The expression levels of two miRNAs were significantly different within 5 years of cessation (P < 0.05/41 = 1.22 × 10-3) from current smokers, while for cessation time between 5 and 15 years we found 19 miRNAs to be significantly different from current smokers, and finally, 38 miRNAs were significantly different after more than 15 years of cessation time (P < 1.22 × 10-3). These results imply the reversibility of the smoking effect on plasma levels of at least 38 out of the 41 smoking-miRNAs following smoking cessation. Next, we found 8 out of the 41 smoking-related miRNAs to be nominally associated (P < 0.05) with the incidence of lung cancer. CONCLUSIONS This study demonstrates smoking-related dysregulation of plasma miRNAs, which might have a potential for reversibility when comparing different smoking cessation groups. The identified miRNAs are involved in several cancer-related pathways and include 8 miRNAs associated with lung cancer incidence. Our results may lay the groundwork for further investigation of miRNAs as potential mechanism linking smoking, gene expression and cancer.
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Affiliation(s)
- Irma Karabegović
- Department of Epidemiology, Erasmus MC University Medical Center, Dr Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Silvana C E Maas
- Department of Epidemiology, Erasmus MC University Medical Center, Dr Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
- Vall d'Hebron Institute of Oncology (VHIO), 08035, Barcelona, Spain
| | - Yu Shuai
- Department of Epidemiology, Erasmus MC University Medical Center, Dr Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - M Arfan Ikram
- Department of Epidemiology, Erasmus MC University Medical Center, Dr Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Bruno Stricker
- Department of Epidemiology, Erasmus MC University Medical Center, Dr Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Joachim Aerts
- Department of Pulmonary Medicine, Erasmus MC University Medical Center, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Guy Brusselle
- Department of Respiratory Medicine, Ghent University Hospital, 9000, Ghent, Belgium
| | - Lies Lahousse
- Department of Bioanalysis, Faculty of Pharmaceutical Sciences, Ghent University, 9000, Ghent, Belgium
| | - Trudy Voortman
- Department of Epidemiology, Erasmus MC University Medical Center, Dr Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
- Division of Human Nutrition and Health, Wageningen University and Research, 6708 PB, Wageningen, The Netherlands
| | - Mohsen Ghanbari
- Department of Epidemiology, Erasmus MC University Medical Center, Dr Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands.
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O'Brien BCV, Weber L, Hueffer K, Weltzin MM. SARS-CoV-2 spike ectodomain targets α7 nicotinic acetylcholine receptors. J Biol Chem 2023; 299:104707. [PMID: 37061001 PMCID: PMC10101490 DOI: 10.1016/j.jbc.2023.104707] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 03/13/2023] [Accepted: 04/10/2023] [Indexed: 04/17/2023] Open
Abstract
Virus entry into animal cells is initiated by attachment to target macromolecules located on host cells. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) trimeric spike glycoprotein targets host angiotensin converting enzyme 2 to gain cellular access. The SARS-CoV-2 glycoprotein contains a neurotoxin-like region that has sequence similarities to the rabies virus and the HIV glycoproteins, as well as to snake neurotoxins, which interact with nicotinic acetylcholine receptor (nAChR) subtypes via this region. Using a peptide of the neurotoxin-like region of SARS-CoV-2 (SARS-CoV-2 glycoprotein peptide [SCoV2P]), we identified that this area moderately inhibits α3β2, α3β4, and α4β2 subtypes, while potentiating and inhibiting α7 nAChRs. These nAChR subtypes are found in target tissues including the nose, lung, central nervous system, and immune cells. Importantly, SCoV2P potentiates and inhibits ACh-induced α7 nAChR responses by an allosteric mechanism, with nicotine enhancing these effects. Live-cell confocal microscopy was used to confirm that SCoV2P interacts with α7 nAChRs in transfected neuronal-like N2a and human embryonic kidney 293 cells. The SARS-CoV-2 ectodomain functionally potentiates and inhibits the α7 subtype with nanomolar potency. Our functional findings identify that the α7 nAChR is a target for the SARS-CoV-2 glycoprotein, providing a new aspect to our understanding of SARS-CoV-2 and host cell interactions, in addition to disease pathogenesis.
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Affiliation(s)
- Brittany C V O'Brien
- Department of Chemistry and Biochemistry, University of Alaska Fairbanks, Fairbanks, Alaska, USA
| | - Lahra Weber
- Department of Chemistry and Biochemistry, University of Alaska Fairbanks, Fairbanks, Alaska, USA
| | - Karsten Hueffer
- Department of Veterinary Medicine, University of Alaska Fairbanks, Fairbanks, Alaska, USA
| | - Maegan M Weltzin
- Department of Chemistry and Biochemistry, University of Alaska Fairbanks, Fairbanks, Alaska, USA.
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Ross JM, Ellingson JM, Frieser MJ, Corley RC, Hopfer CJ, Stallings MC, Wadsworth SJ, Reynolds CA, Hewitt JK. The effects of cannabis use on physical health: A co-twin control study. Drug Alcohol Depend 2022; 230:109200. [PMID: 34871975 PMCID: PMC8714702 DOI: 10.1016/j.drugalcdep.2021.109200] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND Research on the influence of cannabis use on anthropometrics, cardiovascular and pulmonary function, and other indicators of physical health has reported mixed results. We examined whether cannabis frequency is associated with physical health outcomes phenotypically and after controlling for shared genetic and environmental factors via a longitudinal co-twin control design. METHODS We tested the phenotypic associations of adolescent, young adult, and adult cannabis frequency with adult physical health. Next, we ran multilevel models to test if significant phenotypic associations remained at the between-family and within-twin pair levels. Participants include 677 individual twins (308 twin pairs) aged 25-35. RESULTS At the phenotypic level, adolescent cannabis use was associated with less adult exercise engagement (b = - 0.846 min, p = .000). Adult cannabis use was associated with a lower resting heart rate (HR; b = - 0.170 bpm, p = .001) and more frequent appetite loss (b = 0.018, p = .000). Only between-family effects were significant for adolescent cannabis use and exercise engagement (b = - 1.147 min, p = .000) and adult cannabis use and appetite loss frequency (b = 0.041, p = .002). The total within-twin (b = - 0.184, p = .014), MZ only (b = - 0.304, p = .003), and between-family effects (b = - 0.164, p = .025) were significant between adult cannabis use and a lower resting HR, which persisted after controlling for familial confounds and other substance use. CONCLUSIONS The associations between cannabis use with exercise engagement and frequency of appetite loss are explained by familial confounding while the association between cannabis use and resting HR was not. These results do not support a causal association between cannabis use once a week and poorer physical health effects among adults aged 25-35.
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Affiliation(s)
- J. Megan Ross
- Department of Psychiatry, University of Colorado Anschutz Medical Campus
| | | | | | - Robin C. Corley
- Institute for Behavioral Genetics, University of Colorado Boulder
| | | | - Michael C. Stallings
- Institute for Behavioral Genetics, University of Colorado Boulder,Department of Psychology and Neuroscience, University of Colorado Boulder
| | | | | | - John K. Hewitt
- Institute for Behavioral Genetics, University of Colorado Boulder,Department of Psychology and Neuroscience, University of Colorado Boulder
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Jovičić Burić D, Erceg M, Antoljak N. Gender differences in specific trends of COPD mortality in Croatia. Public Health 2021; 202:26-31. [PMID: 34879319 DOI: 10.1016/j.puhe.2021.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 10/17/2021] [Accepted: 10/29/2021] [Indexed: 11/18/2022]
Abstract
OBJECTIVES Chronic obstructive pulmonary disease (COPD) is one of the most common lower respiratory chronic diseases. The aim of this study was to analyze the COPD mortality trends in Croatia for the period 2010-2019 and to identify possible changes and differences by age group and gender. STUDY DESIGN AND METHODS In data analysis were included COPD death cases for the period 2010-2019 defined as ICD-10 code J44.0 - J44.9. Mortality data were obtained from the Croatian Institute of Public Health based on death certificates. To model temporal changes in mortality rates joinpoint regression analysis was carried out. RESULTS The number of COPD deaths increased in men from 878 in 2010 to 1083 in 2019 and in women from 520 in 2010 to 737 in 2019. Over the 10-year period, there was a stable age-standardized COPD mortality rate among men and statistically significant increasing age-standardized COPD mortality rate among women at the national level. CONCLUSIONS The findings show a narrowing of the gender gap of COPD mortality. Observed higher COPD mortality rates with age in both men and women confirm previous data and imply that the number of COPD deaths will continue to increase in the future. The healthcare system should focus on the improvement of the quality of care and investment in health promotion and prevention programs aimed at reducing risk factors for COPD, especially tobacco smoking, as well as raising awareness and knowledge about COPD as a chronic disease.
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Affiliation(s)
| | - M Erceg
- Croatian Institute of Public Health, Zagreb, Croatia
| | - N Antoljak
- Croatian Institute of Public Health, Zagreb, Croatia; The University of Zagreb, School of Medicine, The 'Andrija Štampar' School of Public Health, Zagreb, Croatia
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Xiong M, Guo M, Huang D, Li J, Zhou Y. TRPV1 genetic polymorphisms and risk of COPD or COPD combined with PH in the Han Chinese population. Cell Cycle 2020; 19:3066-3073. [PMID: 33103544 PMCID: PMC7714492 DOI: 10.1080/15384101.2020.1831246] [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] [Indexed: 01/17/2023] Open
Abstract
COPD is a common chronic disease with genetic predisposition. TRPV1 is mainly expressed in peripheral neuron which widely exists in entire respiratory tract. In present study, we aimed to study the relationship between single nucleotide polymorphisms (SNPs) of transient receptor potential vanilloid-1 (TRPV1) and the risk of chronic obstructive pulmonary disease (COPD) or COPD combined with pulmonary hypertension (PH) in Chinese Han population. A total of 1019 individuals, including 506 healthy volunteers and 513 COPD patients (150 patients combined with PH among them) were recruited in this study. Genomic DNA were extracted and sequenced. Genotype and allele frequencies of the TRPV1 SNPs among COPD, COPD combined with PH and control groups were compared. Then, the association of TRPV1 SNPs and smoking status were analyzed. Genotype frequencies of SNP rs3744683 had a significant difference in COPD patients with PH patients compared with control (p = 0.006) or COPD patients without PH patients (p = 0.016). Likewise, SNP rs3744683 was remarkedly associated with the risk of COPD (p = 0.004) in current-smoker groups which phenomenon was not observed in nonsmoker or former-smoker groups. Compared with the control group, there was a significant difference for the distribution of SNP rs4790521 alleles in the COPD group (p = 0.041). For further, logical regression analysis showed that SNP rs3744683 genotype of “TC” was a protective factor for PH in COPD patients compared with the genotype of “TT” (OR = 0.364, 95%CI = 0.159–0.829, p = 0.016). Our findings firstly revealed the relevance between TRPV1 SNPs and the risk for COPD/COPD combined with PH.
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Affiliation(s)
- Mingmei Xiong
- Department of Critical Care Medicine, The Third Affiliated Hospital of Guangzhou Medical University , Guangzhou, China
| | - Meihua Guo
- Department of Respiration, Guangzhou Chest Hospital , Guangzhou, China
| | - Dongjian Huang
- Department of Critical Care Medicine, The Third Affiliated Hospital of Guangzhou Medical University , Guangzhou, China
| | - Jing Li
- Department of Critical Care Medicine, The Third Affiliated Hospital of Guangzhou Medical University , Guangzhou, China
| | - Yan Zhou
- Department of Critical Care Medicine, The Third Affiliated Hospital of Guangzhou Medical University , Guangzhou, China
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10
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YİĞENOĞLU TN, BAŞCI S, ŞAHİN D, BAKIRTAŞ M, KILINC A, UNCU ULU B, BATGİ H, İSKENDER D, OZCAN N, KIZIL ÇAKIR M, DAL S, HACIBEKİROĞLU T, ALTUNTAŞ F. The effect of smoking on stem cell mobilization in allogeneic donors. JOURNAL OF HEALTH SCIENCES AND MEDICINE 2020. [DOI: 10.32322/jhsm.729505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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11
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Oakes JM, Xu J, Morris TM, Fried ND, Pearson CS, Lobell TD, Gilpin NW, Lazartigues E, Gardner JD, Yue X. Effects of Chronic Nicotine Inhalation on Systemic and Pulmonary Blood Pressure and Right Ventricular Remodeling in Mice. Hypertension 2020; 75:1305-1314. [PMID: 32172623 DOI: 10.1161/hypertensionaha.119.14608] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Cigarette smoking is the single most important risk factor for the development of cardiovascular and pulmonary diseases; however, the role of nicotine in the pathogenesis of these diseases is incompletely understood. The purpose of this study was to examine the effects of chronic nicotine inhalation on the development of cardiovascular and pulmonary disease with a focus on blood pressure and cardiac remodeling. Male C57BL6/J mice were exposed to air (control) or nicotine vapor (daily, 12 hour on/12 hour off) for 8 weeks. Systemic blood pressure was recorded weekly by radio-telemetry, and cardiac remodeling was monitored by echocardiography. At the end of the 8 weeks, mice were subjected to right heart catheterization to measure right ventricular systolic pressure. Nicotine-exposed mice exhibited elevated systemic blood pressure from weeks 1 to 3, which then returned to baseline from weeks 4 to 8, indicating development of tolerance to nicotine. At 8 weeks, significantly increased right ventricular systolic pressure was detected in nicotine-exposed mice compared with the air controls. Echocardiography showed that 8-week nicotine inhalation resulted in right ventricular (RV) hypertrophy with increased RV free wall thickness and a trend of increase in RV internal diameter. In contrast, there were no significant structural or functional changes in the left ventricle following nicotine exposure. Mechanistically, we observed increased expression of angiotensin-converting enzyme and enhanced activation of mitogen-activated protein kinase pathways in the RV but not in the left ventricle. We conclude that chronic nicotine inhalation alters both systemic and pulmonary blood pressure with the latter accompanied by RV remodeling, possibly leading to progressive and persistent pulmonary hypertension.
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Affiliation(s)
- Joshua M Oakes
- From the Department of Physiology (J.M.O., N.D.F., C.S.P., T.D.L., N.W.G., J.D.G., X.Y.), Louisiana State University Health Sciences Center, New Orleans
| | - Jiaxi Xu
- Department of Pharmacology and Experimental Therapeutics (J.X., T.M.M., E.L.), Louisiana State University Health Sciences Center, New Orleans.,Southeast Louisiana Veterans Health Care Systems, New Orleans (J.X., T.M.M., T.D.L., N.W.G., E.L.)
| | - Tamara M Morris
- Department of Pharmacology and Experimental Therapeutics (J.X., T.M.M., E.L.), Louisiana State University Health Sciences Center, New Orleans.,Southeast Louisiana Veterans Health Care Systems, New Orleans (J.X., T.M.M., T.D.L., N.W.G., E.L.)
| | - Nicholas D Fried
- From the Department of Physiology (J.M.O., N.D.F., C.S.P., T.D.L., N.W.G., J.D.G., X.Y.), Louisiana State University Health Sciences Center, New Orleans
| | - Charlotte S Pearson
- From the Department of Physiology (J.M.O., N.D.F., C.S.P., T.D.L., N.W.G., J.D.G., X.Y.), Louisiana State University Health Sciences Center, New Orleans
| | - Thomas D Lobell
- From the Department of Physiology (J.M.O., N.D.F., C.S.P., T.D.L., N.W.G., J.D.G., X.Y.), Louisiana State University Health Sciences Center, New Orleans.,Southeast Louisiana Veterans Health Care Systems, New Orleans (J.X., T.M.M., T.D.L., N.W.G., E.L.)
| | - Nicholas W Gilpin
- From the Department of Physiology (J.M.O., N.D.F., C.S.P., T.D.L., N.W.G., J.D.G., X.Y.), Louisiana State University Health Sciences Center, New Orleans.,Southeast Louisiana Veterans Health Care Systems, New Orleans (J.X., T.M.M., T.D.L., N.W.G., E.L.)
| | - Eric Lazartigues
- Department of Pharmacology and Experimental Therapeutics (J.X., T.M.M., E.L.), Louisiana State University Health Sciences Center, New Orleans.,Cardiovascular Center of Excellence (E.L., J.D.G.), Louisiana State University Health Sciences Center, New Orleans.,Southeast Louisiana Veterans Health Care Systems, New Orleans (J.X., T.M.M., T.D.L., N.W.G., E.L.)
| | - Jason D Gardner
- From the Department of Physiology (J.M.O., N.D.F., C.S.P., T.D.L., N.W.G., J.D.G., X.Y.), Louisiana State University Health Sciences Center, New Orleans.,Cardiovascular Center of Excellence (E.L., J.D.G.), Louisiana State University Health Sciences Center, New Orleans
| | - Xinping Yue
- From the Department of Physiology (J.M.O., N.D.F., C.S.P., T.D.L., N.W.G., J.D.G., X.Y.), Louisiana State University Health Sciences Center, New Orleans
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12
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Lahousse L, Bahmer T, Cuevas-Ocaña S, Flajolet P, Mathioudakis AG, McDonnell M, Uller L, Schleich F, Dortas Junior S, Idzko M, Singh D, Ricciardolo FL, Adcock IM, Usmani O, Spanevello A, Bonvini SJ. ERS International Congress, Madrid, 2019: highlights from the Airway Diseases, Asthma and COPD Assembly. ERJ Open Res 2020; 6:00341-2019. [PMID: 32083111 PMCID: PMC7024762 DOI: 10.1183/23120541.00341-2019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 01/14/2020] [Indexed: 11/05/2022] Open
Abstract
The European Respiratory Society (ERS) International Congress 2019 in Madrid, Spain, was a platform for scientific discussion of the highest quality scientific research, cutting-edge techniques and innovative new therapies within the respiratory field. This article discusses some of the high-quality research studies presented at that Congress, with a focus on airway diseases, including asthma, COPD, small airways, bronchiectasis and cough, presented through the Airway Diseases, Asthma and COPD Assembly (Assembly 5) of the ERS. The authors establish the key take-home messages of these studies, compare their findings and place them into context of current understanding.
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Affiliation(s)
- Lies Lahousse
- Dept of Bioanalysis, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Thomas Bahmer
- University Hospital Schleswig-Holstein Campus Kiel, Dept for Internal Medicine I, Kiel, Germany; Member of the German Center for Lung Research (DZL)
| | - Sara Cuevas-Ocaña
- Wolfson Centre for Stem cells, Tissue Engineering and Modelling (STEM), Dept of Stem Cell Biology, Division of Cancer and Stem Cells, School of Medicine, University of Nottingham Biodiscovery Institute, Nottingham, UK
| | - Pauline Flajolet
- Respiratory Pharmacology, National Heart and Lung Institute, Imperial College London, London, UK
| | - Alexander G. Mathioudakis
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, University of Manchester, Manchester, UK
- North West Lung Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - Melissa McDonnell
- Dept of Respiratory Medicine, Galway University Hospitals, Galway, Ireland
| | - Lena Uller
- Respiratory Immunopharmacology, Dept of Experimental Medical Science, Lund University, Lund, Sweden
| | - Florence Schleich
- Dept of Respiratory Medicine, CHU Sart-Tilman Liege, GIGA I3, Liege, Belgium
| | - Sergio Dortas Junior
- Serviço de Imunologia, Hospital Universitário Clementino Fraga Filho (HUCFF-UFRJ), Rio de Janeiro, Brazil
- Universidade Iguaçu (UNIG), Nova Iguaçu, Brazil
| | - Marco Idzko
- Dept of Pneumology, Medical University of Vienna, Vienna, Austria
| | - Dave Singh
- Medicines Evaluation Unit, University of Manchester, Manchester University NHS Foundation Trust, Manchester, UK
| | - Fabio L.M. Ricciardolo
- Dept of Clinical and Biological Sciences, Azienda Ospedaliera Universitaria (AOU) San Luigi Hospital, University of Torino, Turin, Italy
| | - Ian M. Adcock
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Omar Usmani
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Antonio Spanevello
- University of Insubria, Istituti Clinici Scientifici Maugeri, IRCCS, Varese, Italy
| | - Sara J. Bonvini
- Respiratory Pharmacology, National Heart and Lung Institute, Imperial College London, London, UK
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13
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The relation of environmental tobacco smoke (ETS) to chronic bronchitis and mortality over two decades. Respir Med 2019; 154:34-39. [DOI: 10.1016/j.rmed.2019.06.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 06/07/2019] [Accepted: 06/08/2019] [Indexed: 01/15/2023]
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14
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Modulators of Transient Receptor Potential (TRP) Channels as Therapeutic Options in Lung Disease. Pharmaceuticals (Basel) 2019; 12:ph12010023. [PMID: 30717260 PMCID: PMC6469169 DOI: 10.3390/ph12010023] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 12/25/2022] Open
Abstract
The lungs are essential for gas exchange and serve as the gateways of our body to the external environment. They are easily accessible for drugs from both sides, the airways and the vasculature. Recent literature provides evidence for a role of Transient Receptor Potential (TRP) channels as chemosensors and essential members of signal transduction cascades in stress-induced cellular responses. This review will focus on TRP channels (TRPA1, TRPC6, TRPV1, and TRPV4), predominantly expressed in non-neuronal lung tissues and their involvement in pathways associated with diseases like asthma, cystic fibrosis, chronic obstructive pulmonary disease (COPD), lung fibrosis, and edema formation. Recently identified specific modulators of these channels and their potential as new therapeutic options as well as strategies for a causal treatment based on the mechanistic understanding of molecular events will also be evaluated.
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15
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Wang T, Luo D, Chen Z, Qu Y, Ma X, Ye J, Chu Q, Huang D. Sensitive determination of aldehyde metabolites in exhaled breath condensate using capillary electrophoresis with laser-induced fluorescence detection. Anal Bioanal Chem 2018; 410:7203-7210. [PMID: 30215126 DOI: 10.1007/s00216-018-1327-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 07/07/2018] [Accepted: 08/15/2018] [Indexed: 11/30/2022]
Abstract
A novel capillary electrophoresis with laser-induced fluorescence detection method has been developed for the analysis of aldehyde metabolism biomarkers for oxidative stress in exhaled breath condensate (EBC), and fluorescein 5-thiosemicarbazide was used as a derivatization reagent. In a simple capillary zone electrophoresis mode, ten low molecular weight aldehydes (LMWAs) could be well separated within 30 min. The reaction efficiency was doubled by increasing sample solution pH and magnetic stirring, and the LODs of this method reached 0.16-3.4 nM (S/N = 3). Acceptable recoveries (82.1-115%) were obtained for EBC samples, and the RSD data were within 7.9%. This developed method has been applied for the analyses of EBC samples and evaluation of the correlation between smoking and the contents of aldehyde metabolites in EBC. Due to no need of buffer additives and sample preconcentration, this proposed method may provide an appealing alternative for the trace analyses of LMWAs in noninvasive biofluids. Graphical abstract ᅟ.
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Affiliation(s)
- Tingting Wang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
| | - Dan Luo
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
| | - Zheyan Chen
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
| | - Yining Qu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
| | - Xiuhua Ma
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
| | - Jiannong Ye
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
| | - Qingcui Chu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China.
| | - Dongping Huang
- Shanghai Putuo District People's Hospital, Shanghai, 200060, China.
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16
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Luenam A, Laohasiriwong W, Puttanapong N, Saengsuwan J, Phajan T. Socioeconomic disparities and chronic respiratory diseases in Thailand: The National Socioeconomics Survey. Inform Health Soc Care 2018; 43:348-361. [DOI: 10.1080/17538157.2017.1363760] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Amornrat Luenam
- Faculty of Public Health and The Research and Training Center for Enhancing Quality of Life of Working-age People, Khon Kaen University, Khon Kaen, Thailand
| | - Wongsa Laohasiriwong
- Faculty of Public Health and Research and Training Center for Enhancing Quality of Life for Working Age People, Khon Kaen University, Khon Kaen, Thailand
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17
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Wang Y, Zhou Q, Dong L, Xiong M, Jiang H, Guo M, Zhao L, Yuan L, Li Z, Liu H, Wang J, Zhong N, Lu W. The effects of CXCL10 polymorphisms on COPD susceptibility. Mol Genet Genomics 2017; 293:649-655. [PMID: 29285564 DOI: 10.1007/s00438-017-1408-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 12/07/2017] [Indexed: 11/29/2022]
Abstract
The polymorphisms of cytokine genes has been reported to modulate the individual's susceptibility to environmental stimuli in COPD development. C-X-C motif chemokine 10 (CXCL10) mediates recruitment inflammatory cells such as monocytes. Therefore, it may play a key role in COPD. Here, a case-control study was conducted to evaluate the association between CXCL10 tag-SNPs and COPD risk. Four tag-SNPs including rs4256246, rs4508917, rs56061981, and rs56316945 were identified based on the linkage disequilibrium (LD) analysis in 30 healthy controls. The associations between these four tag-SNPs and COPD risk were further evaluated in 480 COPD cases and 488 controls. We found that the "T" allele of rs56061981 was significantly associated with reducing risk of COPD, while "G" allele of rs56316945 was significantly associated with increasing risk of COPD. SNP rs56316945 was significantly associated with increasing risk of COPD under different models except recessive model after adjusting the sex, age, pack year, and biomass. SNP rs56061981 was significantly associated with decreasing COPD risk under different models except recessive model after adjusting the sex, age, pack year, and biomass. Stratified analysis of smoking status and biomass with SNPs supported rs56061981 may interact with biomass and smoking thus modulate COPD susceptibility and rs56216945 was apparently associated with the severity of pulmonary function of COPD patients. This study suggests that rs56061981 and rs56216945 in CXCL10 gene promoter contribute COPD susceptibility.
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Affiliation(s)
- Yan Wang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Qipeng Zhou
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Lian Dong
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Mingmei Xiong
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Hua Jiang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Meihua Guo
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Li Zhao
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Liang Yuan
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Ziying Li
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Hanwei Liu
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Jian Wang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Nanshan Zhong
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Wenju Lu
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510120, Guangdong, China.
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18
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Wang G, Zhou H, Strulovici-Barel Y, Al-Hijji M, Ou X, Salit J, Walters MS, Staudt MR, Kaner RJ, Crystal RG. Role of OSGIN1 in mediating smoking-induced autophagy in the human airway epithelium. Autophagy 2017; 13:1205-1220. [PMID: 28548877 DOI: 10.1080/15548627.2017.1301327] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Enhanced macroautophagy/autophagy is recognized as a component of the pathogenesis of smoking-induced airway disease. Based on the knowledge that enhanced autophagy is linked to oxidative stress and the DNA damage response, both of which are linked to smoking, we used microarray analysis of the airway epithelium to identify smoking upregulated genes known to respond to oxidative stress and the DNA damage response. This analysis identified OSGIN1 (oxidative stress induced growth inhibitor 1) as significantly upregulated by smoking, in both the large and small airway epithelium, an observation confirmed by an independent small airway microarray cohort, TaqMan PCR of large and small airway samples and RNA-Seq of small airway samples. High and low OSGIN1 expressors have different autophagy gene expression patterns in vivo. Genome-wide correlation of RNAseq analysis of airway basal/progenitor cells showed a direct correlation of OSGIN1 mRNA levels to multiple classic autophagy genes. In vitro cigarette smoke extract exposure of primary airway basal/progenitor cells was accompanied by a dose-dependent upregulation of OSGIN1 and autophagy induction. Lentivirus-mediated expression of OSGIN1 in human primary basal/progenitor cells induced puncta-like staining of MAP1LC3B and upregulation of MAP1LC3B mRNA and protein and SQSTM1 mRNA expression level in a dose and time-dependent manner. OSGIN1-induction of autophagosome, amphisome and autolysosome formation was confirmed by colocalization of MAP1LC3B with SQSTM1 or CD63 (endosome marker) and LAMP1 (lysosome marker). Both OSGIN1 overexpression and knockdown enhanced the smoking-evoked autophagic response. Together, these observations support the concept that smoking-induced upregulation of OSGIN1 is one link between smoking-induced stress and enhanced-autophagy in the human airway epithelium.
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Affiliation(s)
- Guoqing Wang
- a Department of Genetic Medicine , Weill Cornell Medical College , New York , NY , USA
| | - Haixia Zhou
- a Department of Genetic Medicine , Weill Cornell Medical College , New York , NY , USA.,b Department of Respiratory Medicine , West China Hospital Sichuan University , Sichuan , China
| | - Yael Strulovici-Barel
- a Department of Genetic Medicine , Weill Cornell Medical College , New York , NY , USA
| | - Mohammed Al-Hijji
- a Department of Genetic Medicine , Weill Cornell Medical College , New York , NY , USA.,c Weill Cornell Medical College-Qatar , Doha , Qatar
| | - Xuemei Ou
- a Department of Genetic Medicine , Weill Cornell Medical College , New York , NY , USA.,b Department of Respiratory Medicine , West China Hospital Sichuan University , Sichuan , China
| | - Jacqueline Salit
- a Department of Genetic Medicine , Weill Cornell Medical College , New York , NY , USA
| | - Matthew S Walters
- a Department of Genetic Medicine , Weill Cornell Medical College , New York , NY , USA
| | - Michelle R Staudt
- a Department of Genetic Medicine , Weill Cornell Medical College , New York , NY , USA
| | - Robert J Kaner
- a Department of Genetic Medicine , Weill Cornell Medical College , New York , NY , USA.,d Department of Medicine , Weill Cornell Medical College , New York , NY , USA
| | - Ronald G Crystal
- a Department of Genetic Medicine , Weill Cornell Medical College , New York , NY , USA
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Dietrich A, Steinritz D, Gudermann T. Transient receptor potential (TRP) channels as molecular targets in lung toxicology and associated diseases. Cell Calcium 2017; 67:123-137. [PMID: 28499580 DOI: 10.1016/j.ceca.2017.04.005] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 04/21/2017] [Accepted: 04/21/2017] [Indexed: 12/24/2022]
Abstract
The lungs as the gateways of our body to the external environment are essential for gas exchange. They are also exposed to toxicants from two sides, the airways and the vasculature. Apart from naturally produced toxic agents, millions of human made chemicals were produced since the beginning of the industrial revolution whose toxicity still needs to be determined. While the knowledge about toxic substances is increasing only slowly, a paradigm shift regarding the proposed mechanisms of toxicity at the plasma membrane emerged. According to their broad-range chemical reactivity, the mechanism of lung injury evoked by these agents has long been described as rather unspecific. Consequently, therapeutic options are still restricted to symptomatic treatment. The identification of molecular down-stream effectors in cells was a major step forward in the mechanistic understanding of the action of toxic chemicals and will pave the way for more causal and specific toxicity testing as well as therapeutic options. In this context, the involvement of Transient Receptor Potential (TRP) channels as chemosensors involved in the detection and effectors of toxicant action is an attractive concept intensively discussed in the scientific community. In this review we will summarize recent evidence for an involvement of TRP channels (TRPA1, TRPC4, TRPC6, TRPV1, TRPV4, TRPM2 and TRPM8) expressed in the lung in pathways of toxin sensing and as mediators of lung inflammation and associated diseases like asthma, COPD, lung fibrosis and edema formation. Specific modulators of these channels may offer new therapeutic options in the future and will endorse strategies for a causal, specifically tailored treatment based on the mechanistic understanding of molecular events induced by lung-toxic agents.
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Affiliation(s)
- Alexander Dietrich
- Walther-Straub-Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), LMU Munich, Germany.
| | - Dirk Steinritz
- Walther-Straub-Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), LMU Munich, Germany; Bundeswehr-Institute of Pharmacology and Toxicology, Munich, Germany
| | - Thomas Gudermann
- Walther-Straub-Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), LMU Munich, Germany
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20
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Correlation between CAT score, inflammatory markers and pulmonary function tests in patient with acute exacerbation of COPD. EGYPTIAN JOURNAL OF CHEST DISEASES AND TUBERCULOSIS 2017. [DOI: 10.1016/j.ejcdt.2015.08.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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21
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Tura-Ceide O, Lobo B, Paul T, Puig-Pey R, Coll-Bonfill N, García-Lucio J, Smolders V, Blanco I, Barberà JA, Peinado VI. Cigarette smoke challenges bone marrow mesenchymal stem cell capacities in guinea pig. Respir Res 2017; 18:50. [PMID: 28330488 PMCID: PMC5363047 DOI: 10.1186/s12931-017-0530-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 03/03/2017] [Indexed: 01/03/2023] Open
Abstract
Background Cigarette smoke (CS) is associated with lower numbers of circulating stem cells and might severely affect their mobilization, trafficking and homing. Our study was designed to demonstrate in an animal model of CS exposure whether CS affects the homing and functional capabilities of bone marrow-derived mesenchymal stem cells (BM-MSCs). Methods Guinea pigs (GP), exposed or sham-exposed to CS, were administered via tracheal instillation or by vascular administration with 2.5 × 106 BM-MSCs obtained from CS-exposed or sham-exposed animal donors. Twenty-four hours after cell administration, animals were sacrificed and cells were visualised into lung structures by optical microscopy. BM-MSCs from 8 healthy GP and from 8 GP exposed to CS for 1 month were isolated from the femur, cultured in vitro and assessed for their proliferation, migration, senescence, differentiation potential and chemokine gene expression profile. Results CS-exposed animals showed greater BM-MSCs lung infiltration than sham-exposed animals regardless of route of administration. The majority of BM-MSCs localized in the alveolar septa. BM-MSCs obtained from CS-exposed animals showed lower ability to engraft and lower proliferation and migration. In vitro, BM-MSCs exposed to CS extract showed a significant reduction of proliferative, cellular differentiation and migratory potential and an increase in cellular senescence in a dose dependent manner. Conclusion Short-term CS exposure induces BM-MSCs dysfunction. Such dysfunction was observed in vivo, affecting the cell homing and proliferation capabilities of BM-MSCs in lungs exposed to CS and in vitro altering the rate of proliferation, senescence, differentiation and migration capacity. Additionally, CS induced a reduction in CXCL9 gene expression in the BM from CS-exposed animals underpinning a potential mechanistic action of bone marrow dysfunction. Electronic supplementary material The online version of this article (doi:10.1186/s12931-017-0530-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Olga Tura-Ceide
- Department of Pulmonary Medicine, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)-University of Barcelona, Villarroel, 170, Barcelona, 08036, Spain.,Biomedical Research Networking Center in Respiratory Diseases (CIBERES), Madrid, Spain
| | - Borja Lobo
- Department of Pulmonary Medicine, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)-University of Barcelona, Villarroel, 170, Barcelona, 08036, Spain
| | - Tanja Paul
- Department of Pulmonary Medicine, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)-University of Barcelona, Villarroel, 170, Barcelona, 08036, Spain
| | - Raquel Puig-Pey
- Department of Pulmonary Medicine, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)-University of Barcelona, Villarroel, 170, Barcelona, 08036, Spain
| | - Núria Coll-Bonfill
- Department of Pulmonary Medicine, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)-University of Barcelona, Villarroel, 170, Barcelona, 08036, Spain
| | - Jéssica García-Lucio
- Department of Pulmonary Medicine, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)-University of Barcelona, Villarroel, 170, Barcelona, 08036, Spain
| | - Valérie Smolders
- Department of Pulmonary Medicine, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)-University of Barcelona, Villarroel, 170, Barcelona, 08036, Spain
| | - Isabel Blanco
- Department of Pulmonary Medicine, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)-University of Barcelona, Villarroel, 170, Barcelona, 08036, Spain.,Biomedical Research Networking Center in Respiratory Diseases (CIBERES), Madrid, Spain
| | - Joan A Barberà
- Department of Pulmonary Medicine, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)-University of Barcelona, Villarroel, 170, Barcelona, 08036, Spain.,Biomedical Research Networking Center in Respiratory Diseases (CIBERES), Madrid, Spain
| | - Víctor I Peinado
- Department of Pulmonary Medicine, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)-University of Barcelona, Villarroel, 170, Barcelona, 08036, Spain. .,Biomedical Research Networking Center in Respiratory Diseases (CIBERES), Madrid, Spain.
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22
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Akparova A, Abdrakhmanova B, Banerjee N, Bersimbaev R. EPHX1 Y113H polymorphism is associated with increased risk of chronic obstructive pulmonary disease in Kazakhstan population. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2017; 816-817:1-6. [PMID: 28464990 DOI: 10.1016/j.mrgentox.2017.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 01/30/2017] [Accepted: 02/21/2017] [Indexed: 12/15/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a type of obstructive lung disease characterized by long term poor airflow which worsens over time. It is considered to be one of the top five chronic diseases of the world in terms of morbidity and mortality. Genetic variability has been found to contribute to the development of COPD. Although association between gene polymorphisms in EPHX1 and TNF-a genes and chronic obstructive pulmonary disease (COPD) have been found but till date no genetic association studies have been done in the COPD affected Kazakhstan population. The aim of the present work was to investigate the association between the Y113H polymorphism (rs1051740) in EPHX1 gene and -308G/A polymorphism (rs1800629) in TNF-a gene and COPD in Kazakhstan population. A case-control study was conducted in Astana and Akmola regions of Kazakhstan, involving 55 cases with COPD and 52 healthy individuals who served as the controls. The polymorphisms were determined using conventional PCR and Sanger sequencing method. Results show that for the EPHX1 gene Y113H polymorphism, the presence of an "C" allele (TC/CC genotype) was significantly overrepresented in the COPD patients compared to the controls. For the TNF-a gene -308G/A polymorphism, no significant difference was found between the two groups. Thus we found that, Y113H polymorphism in EPHX1 gene contributed to increased susceptibility to COPD in the Kazakhstan population.
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Affiliation(s)
- Almira Akparova
- Department of General Biology and Genomics, L.N. Gumilyov Eurasian National University, 2, Satpayev str., Astana, 010008, Kazakhstan.
| | - Balkiya Abdrakhmanova
- Department of General Biology and Genomics, L.N. Gumilyov Eurasian National University, 2, Satpayev str., Astana, 010008, Kazakhstan
| | - Nilanjana Banerjee
- Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Kolkata,700032, India.
| | - Rakhmetkazhy Bersimbaev
- Department of General Biology and Genomics, L.N. Gumilyov Eurasian National University, 2, Satpayev str., Astana, 010008, Kazakhstan
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Ouellette DR, Lavoie KL. Recognition, diagnosis, and treatment of cognitive and psychiatric disorders in patients with COPD. Int J Chron Obstruct Pulmon Dis 2017; 12:639-650. [PMID: 28243081 PMCID: PMC5317263 DOI: 10.2147/copd.s123994] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
COPD is highly prevalent and associated with substantial morbidity and mortality. Clinicians have long been aware that patients with COPD have problems with cognition and are susceptible to mood (depression) and anxiety disorders. With the increasing awareness of COPD as a multisystem disorder, many studies have evaluated the prevalence of neuropsychiatric conditions in patients with COPD. This review presents evidence regarding the prevalence of neuropsychiatric conditions (cognitive disorders/impairment, depression/anxiety) in COPD, their risk factors, and their impact on relevant outcomes. It also discusses both assessment and treatment of neuropsychiatric conditions and makes recommendations for improved screening and treatment. The findings suggest that clinicians caring for patients with COPD must become familiar with diagnosing these comorbid conditions and that future treatment has the potential to impact these patients and thereby improve COPD outcomes.
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Affiliation(s)
- Daniel R Ouellette
- Department of Pulmonary and Critical Care Medicine, Henry Ford Hospital, Detroit, MI, USA
| | - Kim L Lavoie
- Montreal Behavioral Medicine Center (MBMC), Research Center, Integrated University Health and Social Services Center - Sacred Heart Hospital of Montreal, Montreal, QC, Canada
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24
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Grace MS, Bonvini SJ, Belvisi MG, McIntyre P. Modulation of the TRPV4 ion channel as a therapeutic target for disease. Pharmacol Ther 2017; 177:9-22. [PMID: 28202366 DOI: 10.1016/j.pharmthera.2017.02.019] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Transient Receptor Potential Vanilloid 4 (TRPV4) is a broadly expressed, polymodally gated ion channel that plays an important role in many physiological and pathophysiological processes. TRPV4 knockout mice and several synthetic pharmacological compounds that selectively target TRPV4 are now available, which has allowed detailed investigation in to the therapeutic potential of this ion channel. Results from animal studies suggest that TRPV4 antagonism has therapeutic potential in oedema, pain, gastrointestinal disorders, and lung diseases such as cough, bronchoconstriction, pulmonary hypertension, and acute lung injury. A lack of observed side-effects in vivo has prompted a first-in-human trial for a TRPV4 antagonist in healthy participants and stable heart failure patients. If successful, this would open up an exciting new area of research for a multitude of TRPV4-related pathologies. This review will discuss the known roles of TRPV4 in disease, and highlight the possible implications of targeting this important cation channel for therapy.
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Affiliation(s)
- Megan S Grace
- Baker Heart and Diabetes Institute, Melbourne, Australia; School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Australia; Department of Physiology, School of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia.
| | - Sara J Bonvini
- Respiratory Pharmacology, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, UK
| | - Maria G Belvisi
- Respiratory Pharmacology, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, UK
| | - Peter McIntyre
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Australia
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25
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Pelkonen MK, Notkola ILK, Laatikainen TK, Jousilahti P. Chronic bronchitis in relation to hospitalization and mortality over three decades. Respir Med 2016; 123:87-93. [PMID: 28137502 DOI: 10.1016/j.rmed.2016.12.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 12/09/2016] [Accepted: 12/26/2016] [Indexed: 11/17/2022]
Abstract
BACKGROUND The study examines the predictive value of chronic bronchitis for all cause and cause-specific hospitalizations and for mortality during the last three decades. METHODS The study population consists of altogether 47 896 men and women aged 25-74 years who participated in the National FINRISK Study between 1982 and 2007. The study protocol included a standardized questionnaire on the symptoms of chronic bronchitis, smoking habits and other risk factors and clinical measurements at the study site. Data on hospitalizations were obtained from the National Hospital Discharge Registry, and data on the underlying causes of deaths from the National Causes of Death register. The study cohorts were followed up until the end of 2011. RESULTS In study subjects with symptoms of chronic bronchitis the mean annual days of hospitalization were almost two-fold higher than in study subjects without chronic bronchitis. The increase was seen in all age -groups and both in 5-year periods for each cohort and during the whole 30-year follow-up. More specifically, hospitalizations were increased for respiratory diseases and cancer. Chronic bronchitis increased hospitalizations more in smokers and ex-smokers than in never smokers. Furthermore, chronic bronchitis was associated with increased all-cause mortality (hazard ratio (HR) 1.23) and mortality from respiratory causes, cardiovascular diseases and cancer. Smokers and ex-smokers with chronic bronchitis had an increased risk to die (HRs 2.89 and 1.69, respectively) compared with never-smokers without chronic bronchitis. CONCLUSION Symptoms of chronic bronchitis can help to identify individuals who are at risk for increased hospitalizations and mortality.
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Affiliation(s)
- Margit K Pelkonen
- Department of Pulmonary Diseases, Kuopio University Hospital, Kuopio, Finland.
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26
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Xiong M, Wang J, Guo M, Zhou Q, Lu W. TRPM8 genetic variations associated with COPD risk in the Chinese Han population. Int J Chron Obstruct Pulmon Dis 2016; 11:2563-2571. [PMID: 27789940 PMCID: PMC5072571 DOI: 10.2147/copd.s109026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
TRPM8 plays a key role in COPD. The development of pulmonary hypertension (PH) in COPD adversely affects survival and exercise capacity. Thus, the aim of this study was to evaluate the possible association between single nucleotide polymorphisms (SNPs) in TRPM8 and COPD or PH in COPD among the Chinese Han population. A total of 513 COPD patients and 506 controls were enrolled in the study. Six tag SNPs (tSNPs) were genotyped. The relationship between COPD or PH in COPD and the six tSNPs was evaluated using the χ2 test and genetic model analysis. In the rs9789398 polymorphism, the T/C genotype was associated with an increased risk for COPD (P=0.005). Under the assumption of models of inheritance, there was an association between the rs9789398 polymorphism and COPD. In the rs9789675 polymorphism, the G/A genotype was associated with an increased risk for COPD (P=0.021). Furthermore, by the χ2 test, we found that the minor allele “A” of rs9789675 (odds ratio [OR] =0.63, 95% confidence interval [CI], 0.42–0.97, P=0.034) and the minor allele “C” of rs9789398 (OR =1.59, 95% CI, 1.03–2.44, P=0.034) were associated with a decreased risk of PH in COPD in allele models. In genetic models, the genotypes “GA” and “AA” of rs9789675 were associated with a decreased risk of PH in COPD. The genotypes “TC” and “CC” of rs9789398 were associated with a decreased risk of PH in COPD. Moreover, “CG” of rs1004478 was significantly associated with a decreased risk of PH in COPD. There was a significant association between the five SNPs (rs2362290, rs9789675, rs9789398, rs1003540, and rs104478) in the TRPM8 gene and the risk of PH in COPD. Our findings indicated that rs9789398 in the TRPM8 gene was significantly associated with the risk of COPD in the Chinese Han population. Moreover, rs9789675, rs9789398, and rs1004478 were significantly associated with the risk of PH in COPD. This study provides a novel insight into COPD and PH in the development of COPD.
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Affiliation(s)
- Mingmei Xiong
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Jian Wang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Meihua Guo
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Qipeng Zhou
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Wenju Lu
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
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27
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Borthwick LA. The IL-1 cytokine family and its role in inflammation and fibrosis in the lung. Semin Immunopathol 2016; 38:517-34. [PMID: 27001429 PMCID: PMC4896974 DOI: 10.1007/s00281-016-0559-z] [Citation(s) in RCA: 196] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 02/25/2016] [Indexed: 12/24/2022]
Abstract
The IL-1 cytokine family comprises 11 members (7 ligands with agonist activity, 3 receptor antagonists and 1 anti-inflammatory cytokine) and is recognised as a key mediator of inflammation and fibrosis in multiple tissues including the lung. IL-1 targeted therapies have been successfully employed to treat a range of inflammatory conditions such as rheumatoid arthritis and gouty arthritis. This review will introduce the members of the IL-1 cytokine family, briefly discuss the cellular origins and cellular targets and provide an overview of the role of these molecules in inflammation and fibrosis in the lung.
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Affiliation(s)
- L A Borthwick
- Fibrosis Research Group, Institute of Cellular Medicine, Newcastle University, 4th Floor, William Leech Building, Newcastle upon Tyne, NE2 4HH, UK.
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28
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Taylor M, Carr T, Oke O, Jaunky T, Breheny D, Lowe F, Gaça M. E-cigarette aerosols induce lower oxidative stress in vitro when compared to tobacco smoke. Toxicol Mech Methods 2016; 26:465-476. [PMID: 27690198 DOI: 10.1080/15376516.2016.1222473] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 08/05/2016] [Accepted: 08/05/2016] [Indexed: 01/07/2023]
Abstract
Tobacco smoking is a risk factor for various diseases. The underlying cellular mechanisms are not fully characterized, but include oxidative stress, apoptosis, and necrosis. Electronic-cigarettes (e-cigarettes) have emerged as an alternative to and a possible means to reduce harm from tobacco smoking. E-cigarette vapor contains significantly lower levels of toxicants than cigarette smoke, but standardized methods to assess cellular responses to exposure are not well established. We investigated whether an in vitro model of the airway epithelium (human bronchial epithelial cells) and commercially available assays could differentiate cellular stress responses to aqueous aerosol extracts (AqE) generated from cigarette smoke and e-cigarette aerosols. After exposure to AqE concentrations of 0.063-0.500 puffs/mL, we measured the intracellular glutathione ratio (GSH:GSSG), intracellular generation of oxidant species, and activation of the nuclear factor erythroid-related factor 2 (Nrf2)-controlled antioxidant response elements (ARE) to characterize oxidative stress. Apoptotic and necrotic responses were characterized by increases in caspase 3/7 activity and reductions in viable cell protease activities. Concentration-dependent responses indicative of oxidative stress were obtained for all endpoints following exposure to cigarette smoke AqE: intracellular generation of oxidant species increased by up to 83%, GSH:GSSG reduced by 98.6% and transcriptional activation of ARE increased by up to 335%. Caspase 3/7 activity was increased by up to 37% and the viable cell population declined by up to 76%. No cellular stress responses were detected following exposure to e-cigarette AqE. The methods used were suitably sensitive to be employed for comparative studies of tobacco and nicotine products.
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Affiliation(s)
- Mark Taylor
- a Research and Development Center, British American Tobacco Plc , Southampton , UK
| | - Tony Carr
- a Research and Development Center, British American Tobacco Plc , Southampton , UK
| | - Oluwatobiloba Oke
- a Research and Development Center, British American Tobacco Plc , Southampton , UK
| | - Tomasz Jaunky
- a Research and Development Center, British American Tobacco Plc , Southampton , UK
| | - Damien Breheny
- a Research and Development Center, British American Tobacco Plc , Southampton , UK
| | - Frazer Lowe
- a Research and Development Center, British American Tobacco Plc , Southampton , UK
| | - Marianna Gaça
- a Research and Development Center, British American Tobacco Plc , Southampton , UK
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29
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Hua L, An L, Li L, Zhang Y, Wang C. A bioinformatics strategy for detecting the complexity of Chronic Obstructive Pulmonary Disease in Northern Chinese Han Population. Genes Genet Syst 2016; 87:197-209. [PMID: 22976395 DOI: 10.1266/ggs.87.197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Chronic Obstructive Pulmonary Disease (COPD) is a complex human disease which is driven not only by genetic factors, but also by various environmental variables, such as gender, age and smoking. Therefore, there is a demand for investigating the complexity among various risk factors involved in COPD. In this study, 44 tagging SNPs from EPHX1, GSTP1, SERPINE2 and TGFB1 were selected and genotyped in 310 COPD cases and 203 controls, all of which belong to the Han from North China. We integrated functional prediction algorithms of nonsynonymous SNPs (nsSNPs) into Bayesian network to explore the complex regulatory relationships among disease traits and various risk factors. The results showed that three basic variables (age, sex and smoking) were risk factors of COPD-related trait and phenotype. Besides these environmental risk factors, deleterious nsSNPs were found to perform better than those of significant synonymous SNPs when used as variables to make risk prediction of disease outcome. This study provides further evidences for detecting the complexity of COPD in Northern Chinese Han Population.
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Affiliation(s)
- Lin Hua
- Biomedical Engineering Institute of Capital Medical University, Beijing, China.
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30
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Cheng L, Liu J, Li B, Liu S, Li X, Tu H. Cigarette Smoke-Induced Hypermethylation of the GCLC Gene Is Associated With COPD. Chest 2016; 149:474-482. [PMID: 26087411 DOI: 10.1378/chest.14-2309] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Cigarette smoking is a major environmental contributor to COPD, but understanding its epigenetic regulation of oxidative genes involved in the pathogenesis of COPD remains elusive. METHODS We analyzed DNA methylation on glutamate-cysteine ligase catalytic subunit (GCLC), glutathione S-transferase M1 (GSTM1), glutathione S-transferase P1 (GSTP1), and superoxide dismutase 3 (SOD3) promoters in clinical samples from patients with COPD (current-smoker [CS-COPD]; ex-smoker [ES-COPD]) and subjects with normal pulmonary function (current-smoker [CS-NS]; ex-smoker [ES-NS]; never-smoker [NC]). Expression of GCLC messenger RNA (mRNA) and glutathione (GSH) synthesis in these clinical samples and human bronchial epithelial (BEAS-2B) cells stimulated by cigarette-smoke extract (CSE) was evaluated. GCLC mRNA and protein levels were measured to determine effects of demethylation and deacetylation agents on CSE-treated BEAS-2B cells. RESULTS The DNA methylation level of the GCLC promoter was significantly increased in CS-COPD, CS-NS, and ES-COPD groups compared with ES-NS and NC groups. However, there were no significant differences in DNA methylation values of GSTM1, GSTP1, and SOD3 promoters among these groups. Expression of GCLC mRNA was downregulated in the lungs, and GSH levels decreased in plasma as a consequence of hypermethylation of the GCLC promoter. Similarly, CSE-treated BEAS-2B cells had hypermethylation of the GCLC gene, mRNA downregulation, and a decreased intracellular GSH level. GCLC expression in CSE-treated BEAS-2B cells was restored by the methylation inhibitor, 5-aza-2'-deoxycytidine, but not by the deacetylation agent, trichostatin A. CONCLUSIONS Cigarette smoke-induced hypermethylation of the GCLC promoter is related to the initiation and progression of COPD. Our finding may provide a new strategy for COPD intervention by developing demethylation agents targeting GCLC hypermethylation.
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Affiliation(s)
- Linling Cheng
- The State Key Laboratory of Respiratory Disease, National Clinical Center for Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jun Liu
- The State Key Laboratory of Respiratory Disease, National Clinical Center for Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Bing Li
- Research Center for Experimental Medicine, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Shengming Liu
- Department of Respiratory Medicine, First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Xianyan Li
- Department of Respiratory Medicine, First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Hongbin Tu
- The State Key Laboratory of Respiratory Disease, National Clinical Center for Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China; Research Center for Experimental Medicine, Guangzhou Medical University, Guangzhou, Guangdong, China.
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31
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Lusk CM, Wenzlaff AS, Dyson G, Purrington KS, Watza D, Land S, Soubani AO, Gadgeel SM, Schwartz AG. Whole-exome sequencing reveals genetic variability among lung cancer cases subphenotyped for emphysema. Carcinogenesis 2015; 37:139-144. [PMID: 26717996 DOI: 10.1093/carcin/bgv248] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 12/13/2015] [Indexed: 11/13/2022] Open
Abstract
Lung cancer continues to be a major public health challenge in the United States despite efforts to decrease the prevalence of smoking; outcomes are especially poor for African-American patients compared to other races/ethnicities. Chronic obstructive pulmonary disease (COPD) co-occurs with lung cancer frequently, but not always, suggesting both shared and distinct risk factors for these two diseases. To identify germline genetic variation that distinguishes between lung cancer in the presence and absence of emphysema, we performed whole-exome sequencing on 46 African-American lung cancer cases (23 with and 23 without emphysema frequency matched on age, sex, histology and pack years). Using conditional logistic regression, we found 6305 variants (of 168 150 varying sites) significantly associated with lung cancer subphenotype (P ≤ 0.05). Next, we validated 10 of these variants in an independent set of 612 lung cancer cases (267 with emphysema and 345 without emphysema) from the same population of inference as the sequenced cases. We found one variant that was significantly associated with lung cancer subphenotype in the validation sample. These findings contribute to teasing apart shared genetic factors from independent genetic factors for lung cancer and COPD.
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Affiliation(s)
- Christine M Lusk
- Karmanos Cancer Institute, Detroit, MI 48201, USA.,Department of Oncology, School of Medicine and
| | - Angela S Wenzlaff
- Karmanos Cancer Institute, Detroit, MI 48201, USA.,Department of Oncology, School of Medicine and
| | - Greg Dyson
- Karmanos Cancer Institute, Detroit, MI 48201, USA.,Department of Oncology, School of Medicine and
| | - Kristen S Purrington
- Karmanos Cancer Institute, Detroit, MI 48201, USA.,Department of Oncology, School of Medicine and
| | - Donovan Watza
- Karmanos Cancer Institute, Detroit, MI 48201, USA.,Department of Oncology, School of Medicine and
| | - Susan Land
- Karmanos Cancer Institute, Detroit, MI 48201, USA.,Department of Oncology, School of Medicine and
| | - Ayman O Soubani
- Karmanos Cancer Institute, Detroit, MI 48201, USA.,Department of Oncology, School of Medicine and.,Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Wayne State University, Detroit, MI 48201, USA
| | - Shirish M Gadgeel
- Karmanos Cancer Institute, Detroit, MI 48201, USA.,Department of Oncology, School of Medicine and
| | - Ann G Schwartz
- Karmanos Cancer Institute, Detroit, MI 48201, USA.,Department of Oncology, School of Medicine and
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32
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Azzopardi D, Haswell LE, Foss-Smith G, Hewitt K, Asquith N, Corke S, Phillips G. Evaluation of an air-liquid interface cell culture model for studies on the inflammatory and cytotoxic responses to tobacco smoke aerosols. Toxicol In Vitro 2015; 29:1720-8. [PMID: 26096598 DOI: 10.1016/j.tiv.2015.06.016] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 05/16/2015] [Accepted: 06/08/2015] [Indexed: 11/22/2022]
Abstract
In vitro toxicological studies for tobacco product assessment have traditionally been undertaken using the particulate phase of tobacco smoke. However, this does not truly reflect exposure conditions that occur in smokers. Thus in vitro cell culture systems are required in which cells are exposed to tobacco whole smoke (WS) at the air-liquid interface (ALI). In this study bronchial epithelial cells were cultured on semi-permeable membranes, transitioned to the ALI and the robustness and sensitivity of the cells to tobacco WS and vapour phase (VP) assessed. Although no effect of air exposure was observed on cell viability, IL-6 and IL-8 release was increased. Exposure to WS resulted in a significant dose dependent decrease in cell viability and a significant non-dose dependent increase in inflammatory mediator secretion. The VP was found to contribute approximately 90% of the total cytotoxicity derived from WS. The cell culture system was also able to differentiate between two smoking regimens and was sensitive to passage number with increased inflammatory mediator secretion and lower cell viability observed in cell cultures of low passage number following WS exposure. This simple cell culture system may facilitate studies on the toxicological impact of future tobacco products and nicotine delivery devices.
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Affiliation(s)
- David Azzopardi
- British American Tobacco (Investments) Limited, Group R&D, Regents Park Road, Southampton SO15 8TL, UK
| | - Linsey E Haswell
- British American Tobacco (Investments) Limited, Group R&D, Regents Park Road, Southampton SO15 8TL, UK
| | - Geoff Foss-Smith
- British American Tobacco (Investments) Limited, Group R&D, Regents Park Road, Southampton SO15 8TL, UK
| | - Katherine Hewitt
- British American Tobacco (Investments) Limited, Group R&D, Regents Park Road, Southampton SO15 8TL, UK
| | - Nathan Asquith
- British American Tobacco (Investments) Limited, Group R&D, Regents Park Road, Southampton SO15 8TL, UK
| | - Sarah Corke
- British American Tobacco (Investments) Limited, Group R&D, Regents Park Road, Southampton SO15 8TL, UK
| | - Gary Phillips
- British American Tobacco (Investments) Limited, Group R&D, Regents Park Road, Southampton SO15 8TL, UK.
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33
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Limjunyawong N, Craig JM, Lagassé HAD, Scott AL, Mitzner W. Experimental progressive emphysema in BALB/cJ mice as a model for chronic alveolar destruction in humans. Am J Physiol Lung Cell Mol Physiol 2015; 309:L662-76. [PMID: 26232300 PMCID: PMC4593839 DOI: 10.1152/ajplung.00214.2015] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 07/29/2015] [Indexed: 01/09/2023] Open
Abstract
Emphysema, one of the major components of chronic obstructive pulmonary disease (COPD), is characterized by the progressive and irreversible loss of alveolar lung tissue. Even though >80% of COPD cases are associated with cigarette smoking, only a relatively small proportion of smokers develop emphysema, suggesting a potential role for genetic factors in determining individual susceptibility to emphysema. Although strain-dependent effects have been shown in animal models of emphysema, the molecular basis underlying this intrinsic susceptibility is not fully understood. In this present study, we investigated emphysema development using the elastase-induced experimental emphysema model in two commonly used mouse strains, C57BL/6J and BALB/cJ. The results demonstrate that mice with different genetic backgrounds show disparate susceptibility to the development of emphysema. BALB/cJ mice were found to be much more sensitive than C57BL/6J to elastase injury in both a dose-dependent and time-dependent manner, as measured by significantly higher mortality, greater body weight loss, greater decline in lung function, and a greater loss of alveolar tissue. The more susceptible BALB/cJ strain also showed the persistence of inflammatory cells in the lung, especially macrophages and lymphocytes. A comparative gene expression analysis following elastase-induced injury showed BALB/cJ mice had elevated levels of il17A mRNA and a number of classically (M1) and alternatively (M2) activated macrophage genes, whereas the C57BL/6J mice demonstrated augmented levels of interferon-γ. These findings suggest a possible role for these cellular and molecular mediators in modulating the severity of emphysema and highlight the possibility that they might contribute to the heterogeneity observed in clinical emphysema outcomes.
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Affiliation(s)
- Nathachit Limjunyawong
- Department of Environmental Health Sciences, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; and
| | - John M Craig
- Department of Environmental Health Sciences, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; and
| | - H A Daniel Lagassé
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
| | - Alan L Scott
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
| | - Wayne Mitzner
- Department of Environmental Health Sciences, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland; and
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34
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Cheng LL, Liu YY, Su ZQ, Liu J, Chen RC, Ran PX. Clinical characteristics of tobacco smoke-induced versus biomass fuel-induced chronic obstructive pulmonary disease. J Transl Int Med 2015; 3:126-129. [PMID: 27847900 PMCID: PMC4936465 DOI: 10.1515/jtim-2015-0012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE To investigate differences in clinical features between tobacco smoke-induced and biomass fuel-induced chronic obstructive pulmonary disease (COPD). METHODS We retrospectively analyzed 206 patients with COPD caused by exposure to tobacco smoke and 81 cases of COPD caused by exposure to biomass fuels who received treatment in our hospital between 2011 March and 2014 March. Difference in general health status, clinical symptoms, the dyspnea score, and comorbidities between the two groups were compared. In addition, pulmonary function, grading, and acute exacerbations were also compared. RESULTS (1) Difference in general health status: Male and female patients with COPD caused by exposure to tobacco smoke were 83.5 and 16.5%, respectively. Male and female patients with COPD caused by exposure to smoke from biomass fuels were 14.8 and 85.2% (χ2 = 27.2, P < 0.05), respectively. Tobacco smoke-induced COPD was more prevalent in men, and COPD caused by exposure to smoke from biomass fuels was more prevalent in women. After gender adjustment, body mass index (BMI) was lower in women with COPD caused by exposure to smoke from biomass fuels than those by tobacco smoke. There was no statistically significant difference in other indicators, such as age. (2): Difference in clinical symptoms: No statistically significant difference in the modified British Medical Research Counsel (mMRC) Questionnaire, a measure of breathlessness, was observed between the two groups. Dyspnea was more common in COPD patients that was caused by exposure to biomass fuels (38.3%) than by tobacco smoke (11.1%) (χ2 = 17.9, P < 0.05). The comorbidities of allergic diseases (such as allergic rhinitis, bronchial asthma) were more prevalent in COPD patients that was caused by exposure to smoke from biomass fuels (43.2%) than by tobacco smoke (18%) (χ2 = 16.1, P < 0.05). However, COPD comorbid with lung cancer was more prevalent in those cases that were caused by exposure to tobacco smoke (7.77%) than in cases caused by exposure to smoke from biomass fuels (3.7%) (χ2 = 9.7, P < 0.05). (3) Differences in grading of pulmonary function: After gender adjustment, patients with COPD caused by exposure to biomass fuels were mostly in grade B or D. (4) Exacerbations: No significant difference in exacerbations per year was noted between the two groups. CONCLUSIONS Marked differences exist between patients with COPD caused by exposure to tobacco smoke and smoke from biomass fuels. Patients with COPD caused by exposure to biofuels are mostly females with lower BMI and often with many clinical symptoms and complications, such as allergic rhinitis and bronchial asthma. Such patients are often in stage B or D. Tobacco smoke-induced COPD is more prevalent in male patients, often with complications in the form of lung cancer.
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Affiliation(s)
- Lin-ling Cheng
- The Key State Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong Province, China
| | - Ya-ya Liu
- Guangzhou Profession College of Foods and Drugs, Guangzhou 510120, Guangdong Province, China
| | - Zhu-quan Su
- The Key State Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong Province, China
| | - Jun Liu
- The Key State Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong Province, China
| | - Rong-chang Chen
- The Key State Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong Province, China
| | - Pi-xin Ran
- The Key State Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, Guangdong Province, China
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Zhang SJ, Jiang JX, Ren QQ, Xie QM, Xiong YK. Effects of the inhalation of the m3 receptor antagonist bencycloquidium bromide in a mouse cigarette smoke-induced airway inflammation model. Drug Dev Res 2015; 76:123-31. [PMID: 25958838 DOI: 10.1002/ddr.21248] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 02/28/2015] [Indexed: 11/09/2022]
Abstract
Bencycloquidium bromide (BCQB), a novel M3 receptor antagonist, alleviates airway hyperresponsiveness, inflammation, and airway remodeling in a murine model of asthma. The aim of this study was to investigate the anti-inflammatory activity of inhaled BCQB in a cigarette smoke (CS)-induced model of acute lung inflammation. Mice exposed to CS developed chronic obstructive pulmonary disease (COPD). Inhalation of BCQB suppressed the accumulation of neutrophils and macrophages in airways and lung and also inhibited the CS-induced increases in mRNA levels of keratinocyte-derived chemokine, monocyte chemotactic protein-1, tumor necrosis factor-alpha, and interleukin-1β in lung and protein expression levels in bronchoalveolar lavage fluid. Moreover, BCQB (300 μg/ml) inhibited the CS-induced changes in superoxide dismutase and myeloperoxidase activities in the lungs. Our study suggests that BCQB might be a potential therapy for inflammation in CS-induced pulmonary diseases, including COPD.
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Affiliation(s)
- Shui-Juan Zhang
- Department of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Jun-Xia Jiang
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou, China, 310058
| | - Qian-Qian Ren
- Department of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Qiang-Min Xie
- Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou, China, 310058
- Department of Medicine, Laboratory Animal Center of Zhejiang University, Hangzhou, China, 310058
| | - Yao-Kang Xiong
- Department of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 310053, China
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Liu L, Li X, Yuan R, Zhang H, Qiang L, Shen J, Jin S. Associations of ABHD2 genetic variations with risks for chronic obstructive pulmonary disease in a Chinese Han population. PLoS One 2015; 10:e0123929. [PMID: 25880496 PMCID: PMC4399978 DOI: 10.1371/journal.pone.0123929] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Accepted: 03/09/2015] [Indexed: 11/30/2022] Open
Abstract
The human α/β hydrolase domain-containing protein 2 gene (ABHD2) plays a critical role in pulmonary emphysema, a major subset of the clinical entity known as chronic obstructive pulmonary disease (COPD). Here, we evaluated genetic variation in the ABHD2 gene in a Chinese Han population of 286 COPD patients and 326 control subjects. The rs12442260 CT/CC genotype was associated with COPD (P < 0.001) under a dominant model. In the former-smoker group, the rs12442260 TT genotype was associated with a decreased risk of developing COPD after adjusting for age, gender and pack-years (P = 0.012). Rs12442260 was also associated with pre-FEV1 (the predicted bronchodilator forced expiratory volume in the first second) in controls (P = 0.027), but with FEV1/ forced vital capacity (FVC) ratios only in COPD patients (P = 0.012) under a dominant model. Results from the current study suggest that ABHD2 gene polymorphisms contribute to COPD susceptibility in the Chinese Han population.
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Affiliation(s)
- Li Liu
- Department of Histology and Embryology, Harbin Medical University, Harbin, Heilongjiang Province, 150018, China
| | - Xiangshun Li
- Division of Respiratory Disease, The Fourth Hospital of Harbin Medical University, Harbin, Harbin, Heilongjiang Province, 150001, China
| | - Rui Yuan
- Department of Histology and Embryology, Harbin Medical University, Harbin, Heilongjiang Province, 150018, China
| | - Honghong Zhang
- Department of Histology and Embryology, Harbin Medical University, Harbin, Heilongjiang Province, 150018, China
| | - Lixia Qiang
- Division of Respiratory Disease, The Fourth Hospital of Harbin Medical University, Harbin, Harbin, Heilongjiang Province, 150001, China
| | - Jingling Shen
- Department of Histology and Embryology, Harbin Medical University, Harbin, Heilongjiang Province, 150018, China
- * E-mail: (SJ); (JS)
| | - Shoude Jin
- Division of Respiratory Disease, The Fourth Hospital of Harbin Medical University, Harbin, Harbin, Heilongjiang Province, 150001, China
- * E-mail: (SJ); (JS)
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Yoo S, Takikawa S, Geraghty P, Argmann C, Campbell J, Lin L, Huang T, Tu Z, Feronjy R, Spira A, Schadt EE, Powell CA, Zhu J. Integrative analysis of DNA methylation and gene expression data identifies EPAS1 as a key regulator of COPD. PLoS Genet 2015; 11:e1004898. [PMID: 25569234 PMCID: PMC4287352 DOI: 10.1371/journal.pgen.1004898] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Accepted: 11/17/2014] [Indexed: 01/11/2023] Open
Abstract
Chronic Obstructive Pulmonary Disease (COPD) is a complex disease. Genetic, epigenetic, and environmental factors are known to contribute to COPD risk and disease progression. Therefore we developed a systematic approach to identify key regulators of COPD that integrates genome-wide DNA methylation, gene expression, and phenotype data in lung tissue from COPD and control samples. Our integrative analysis identified 126 key regulators of COPD. We identified EPAS1 as the only key regulator whose downstream genes significantly overlapped with multiple genes sets associated with COPD disease severity. EPAS1 is distinct in comparison with other key regulators in terms of methylation profile and downstream target genes. Genes predicted to be regulated by EPAS1 were enriched for biological processes including signaling, cell communications, and system development. We confirmed that EPAS1 protein levels are lower in human COPD lung tissue compared to non-disease controls and that Epas1 gene expression is reduced in mice chronically exposed to cigarette smoke. As EPAS1 downstream genes were significantly enriched for hypoxia responsive genes in endothelial cells, we tested EPAS1 function in human endothelial cells. EPAS1 knockdown by siRNA in endothelial cells impacted genes that significantly overlapped with EPAS1 downstream genes in lung tissue including hypoxia responsive genes, and genes associated with emphysema severity. Our first integrative analysis of genome-wide DNA methylation and gene expression profiles illustrates that not only does DNA methylation play a ‘causal’ role in the molecular pathophysiology of COPD, but it can be leveraged to directly identify novel key mediators of this pathophysiology. Chronic Obstructive Pulmonary Disease (COPD) is a common lung disease. It is the fourth leading cause of death in the world and is expected to be the third by 2020. COPD is a heterogeneous and complex disease consisting of obstruction in the small airways, emphysema, and chronic bronchitis. COPD is generally caused by exposure to noxious particles or gases, most commonly from cigarette smoking. However, only 20–25% of smokers develop clinically significant airflow obstruction. Smoking is known to cause epigenetic changes in lung tissues. Thus, genetics, epigenetic, and their interaction with environmental factors play an important role in COPD pathogenesis and progression. Currently, there are no therapeutics that can reverse COPD progression. In order to identify new targets that may lead to the development of therapeutics for curing COPD, we developed a systematic approach to identify key regulators of COPD that integrates genome-wide DNA methylation, gene expression, and phenotype data in lung tissue from COPD and control samples. Our integrative analysis identified 126 key regulators of COPD. We identified EPAS1 as the only key regulator whose downstream genes significantly overlapped with multiple genes sets associated with COPD disease severity.
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Affiliation(s)
- Seungyeul Yoo
- Institute of Genomics and Multiscale Biology, Mount Sinai School of Medicine, New York, New York, United States of America
- Department of Genetics and Genomic Sciences, Mount Sinai School of Medicine, New York, New York, United States of America
| | - Sachiko Takikawa
- Division of Pulmonary, Critical Care and Sleep Medicine, Mount Sinai School of Medicine, New York, New York, United States of America
| | - Patrick Geraghty
- Department of Medicine, St. Luke's Roosevelt Medical Center, Mount Sinai School of Medicine, New York, New York, United States of America
| | - Carmen Argmann
- Institute of Genomics and Multiscale Biology, Mount Sinai School of Medicine, New York, New York, United States of America
- Department of Genetics and Genomic Sciences, Mount Sinai School of Medicine, New York, New York, United States of America
| | - Joshua Campbell
- Division of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Luan Lin
- Institute of Genomics and Multiscale Biology, Mount Sinai School of Medicine, New York, New York, United States of America
- Department of Genetics and Genomic Sciences, Mount Sinai School of Medicine, New York, New York, United States of America
| | - Tao Huang
- Institute of Genomics and Multiscale Biology, Mount Sinai School of Medicine, New York, New York, United States of America
- Department of Genetics and Genomic Sciences, Mount Sinai School of Medicine, New York, New York, United States of America
| | - Zhidong Tu
- Institute of Genomics and Multiscale Biology, Mount Sinai School of Medicine, New York, New York, United States of America
- Department of Genetics and Genomic Sciences, Mount Sinai School of Medicine, New York, New York, United States of America
| | - Robert Feronjy
- Department of Medicine, St. Luke's Roosevelt Medical Center, Mount Sinai School of Medicine, New York, New York, United States of America
| | - Avrum Spira
- Division of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Eric E. Schadt
- Institute of Genomics and Multiscale Biology, Mount Sinai School of Medicine, New York, New York, United States of America
- Department of Genetics and Genomic Sciences, Mount Sinai School of Medicine, New York, New York, United States of America
| | - Charles A. Powell
- Division of Pulmonary, Critical Care and Sleep Medicine, Mount Sinai School of Medicine, New York, New York, United States of America
| | - Jun Zhu
- Institute of Genomics and Multiscale Biology, Mount Sinai School of Medicine, New York, New York, United States of America
- Department of Genetics and Genomic Sciences, Mount Sinai School of Medicine, New York, New York, United States of America
- * E-mail:
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Lee H, Jung KH, Park S, Kil YS, Chung EY, Jang YP, Seo EK, Bae H. Inhibitory effects of Stemona tuberosa on lung inflammation in a subacute cigarette smoke-induced mouse model. Altern Ther Health Med 2014; 14:513. [PMID: 25528348 PMCID: PMC4364599 DOI: 10.1186/1472-6882-14-513] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 12/16/2014] [Indexed: 12/18/2022]
Abstract
BACKGROUND Stemona tuberosa has long been used in Korean and Chinese medicine to ameliorate various lung diseases such as pneumonia and bronchitis. However, it has not yet been proven that Stemona tuberosa has positive effects on lung inflammation. METHODS Stemona tuberosa extract (ST) was orally administered to C57BL/6 mice 2 hr before exposure to CS for 2 weeks. Twenty-four hours after the last CS exposure, mice were sacrificed to investigate the changes in the expression of cytokines such as tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6), chemokines such as keratinocyte-derived chemokine (KC) and inflammatory cells such as macrophages, neutrophils, and lymphocytes from bronchoalveolar lavage fluid (BALF). Furthermore, we compared the effect of ST on lung tissue morphology between the fresh air, CS exposure, and ST treatment groups. RESULTS ST significantly decreased the numbers of total cells, macrophages, neutrophils, and lymphocytes in the BALF of mice that were exposed to CS. Additionally, ST reduced the levels of cytokines (TNF-α, IL-6) and the tested chemokine (KC) in BALF, as measured by enzyme-linked immunosorbent assay (ELISA). We also estimated the mean alveolar airspace (MAA) via morphometric analysis of lung tissues stained with hematoxylin and eosin (H&E). We found that ST inhibited the alveolar airspace enlargement induced by CS exposure. Furthermore, we observed that the lung tissues of mice treated with ST showed ameliorated epithelial hyperplasia of the bronchioles compared with those of mice exposed only to CS. CONCLUSIONS These results indicate that Stemona tuberosa has significant effects on lung inflammation in a subacute CS-induced mouse model. According to these outcomes, Stemona tuberosa may represent a novel therapeutic herb for the treatment of lung diseases including COPD.
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Fleixo-Lima G, Ventura H, Medini M, Bar L, Strauss P, Lewis EC. Mechanistic evidence in support of alpha1-antitrypsin as a therapeutic approach for type 1 diabetes. J Diabetes Sci Technol 2014; 8:1193-203. [PMID: 25155845 PMCID: PMC4455465 DOI: 10.1177/1932296814547096] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Utilizing endogenous molecules as a therapeutic approach is almost unequivocally superior to engineered or synthetic molecules. However, one rarely encounters an anti-inflammatory, cytoprotective, immunomodulatory and wound-healing molecule that has been available for use for decades. α1-antitrypsin (AAT), a circulating protein that rises more than 4-fold during acute-phase responses, has been administered for a rare genetic deficiency at large doses, for life. Aside from advances in insulin therapy, medical research in type 1 diabetes (T1D) has predominantly focused on autoimmunity--controlling the adaptive immune response. However, it is now appreciated that one may need to extend therapeutic targets to incorporate immune responses to cellular injury, as well as promote selective control over excessive inflammation and early tissue repair. Recent data suggest that tissue damage related to lung and renal ischemia-reperfusion injury, stroke, and ischemic heart disease is markedly reduced by AAT. AAT was also shown to protect pancreatic islet β cells at multiple levels. Unlike classic immunosuppressive and anti-inflammatory approaches, AAT exerts some antiviral and antibacterial activities. Based on these and other reports, AAT is under evaluation for treatment of T1D patients in multiple clinical trials. Initial results suggest that AAT therapy could potentially improve insulin production without adverse effects. Up to 50% of individuals displayed improved islet function. It is a rare occurrence in T1D research that a therapy is offered that holds a safety profile equal or superior to that of insulin alone. While placebo-controlled trials are ongoing, the mechanism(s) behind these favorable activities of AAT are still being explored.
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Affiliation(s)
- Gabriella Fleixo-Lima
- Department of Clinical Biochemistry & Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Be'er Sheva, Israel
| | - Hilla Ventura
- Department of Clinical Biochemistry & Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Be'er Sheva, Israel
| | - Michal Medini
- Department of Clinical Biochemistry & Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Be'er Sheva, Israel
| | | | | | - Eli C Lewis
- Department of Clinical Biochemistry & Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Be'er Sheva, Israel
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Pelkonen MK, Notkola ILK, Laatikainen TK, Koskela HO. Twenty-five year trends in prevalence of chronic bronchitis and the trends in relation to smoking. Respir Med 2014; 108:1633-40. [DOI: 10.1016/j.rmed.2014.08.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 08/13/2014] [Accepted: 08/16/2014] [Indexed: 11/29/2022]
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Lee H, Yu SR, Lim D, Lee H, Jin EY, Jang YP, Kim J. Galla Chinensis Attenuates Cigarette Smoke-associated Lung Injury by Inhibiting Recruitment of Inflammatory Cells into the Lung. Basic Clin Pharmacol Toxicol 2014; 116:222-8. [DOI: 10.1111/bcpt.12308] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 08/05/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Hyojung Lee
- Department of Oriental Physiology; College of Pharmacy; Kyung Hee University; Seoul Korea
| | - Seung-Ryeol Yu
- Department of Oriental Physiology; College of Pharmacy; Kyung Hee University; Seoul Korea
| | - Dahae Lim
- Department of Oriental Physiology; College of Pharmacy; Kyung Hee University; Seoul Korea
| | - Hyejung Lee
- Acupuncture and Meridian Science Research Center; KyungHee University; Seoul Korea
| | - Eun-Young Jin
- Department of Life and Nanopharmaceutical Sciences; College of Pharmacy; Kyung Hee University; Seoul Korea
| | - Young-Pyo Jang
- Department of Life and Nanopharmaceutical Sciences; College of Pharmacy; Kyung Hee University; Seoul Korea
| | - Jinju Kim
- Department of Oriental Physiology; College of Pharmacy; Kyung Hee University; Seoul Korea
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Baxter M, Eltom S, Dekkak B, Yew-Booth L, Dubuis ED, Maher SA, Belvisi MG, Birrell MA. Role of transient receptor potential and pannexin channels in cigarette smoke-triggered ATP release in the lung. Thorax 2014; 69:1080-9. [PMID: 25301060 DOI: 10.1136/thoraxjnl-2014-205467] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND COPD is an inflammatory disease usually associated with cigarette smoking (CS) with an increasing global prevalence and no effective medication. Extracellular ATP is increased in the COPD affected lung and may play a key role in driving CS-induced airway inflammation, but the mechanism involved in ATP release has eluded researchers. Recently, the transient receptor potential (TRP) and pannexin-1 channels have been suggested to play a role in other experimental paradigms. Thus, the aim of this work is to investigate if these channels are involved in CS-induced ATP release in the lung. METHODS Primary human cells were exposed to CS and extracellular ATP levels measured. Mice were exposed to mainstream CS and airway inflammation assessed. TRPV1/4 mRNA expression was assessed in human lung parenchyma. RESULTS CS exposure caused a dose-related increase in ATP from primary airway bronchial epithelial cells. This was attenuated by blockers of TRPV1, TRPV4 and pannexin-1 channels. Parallel data was obtained using murine acute CS-driven model systems. Finally, TRPV1/4 mRNA expression was increased in lung tissue samples from patients with COPD. CONCLUSIONS Extracellular ATP is increased in the COPD affected lung and may play a key role in driving disease pathophysiology. These experiments uncover a novel mechanism which may be responsible for CS-induced ATP release. These findings highlight novel targets that could lead to the development of medicine to treat this devastating disease.
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Affiliation(s)
- Matthew Baxter
- Respiratory Pharmacology, Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, UK
| | - Suffwan Eltom
- Respiratory Pharmacology, Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, UK
| | - Bilel Dekkak
- Respiratory Pharmacology, Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, UK
| | - Liang Yew-Booth
- Respiratory Pharmacology, Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, UK
| | - Eric D Dubuis
- Respiratory Pharmacology, Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, UK
| | - Sarah A Maher
- Respiratory Pharmacology, Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, UK
| | - Maria G Belvisi
- Respiratory Pharmacology, Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, UK
| | - Mark A Birrell
- Respiratory Pharmacology, Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, UK
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Wang Y, Xue C, Dong F, Peng Y, Zhang Y, Jin M, Zang B, Tan L. Hydroxysafflor yellow a attenuates small airway remodeling in a rat model of chronic obstructive pulmonary disease. Biol Pharm Bull 2014; 37:1591-8. [PMID: 25056232 DOI: 10.1248/bpb.b14-00198] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Our previous studies found that hydroxysafflor yellow A (HSYA), an active ingredient in Carthamus tinctorius L., has anti-inflammatory and anti-fibrosis properties. In this study, we investigated the effect of HSYA on small airway remodeling (SAR) in a chronic obstructive pulmonary disease (COPD) rat model induced by cigarette smoke and lipopolysaccharide (LPS). SAR is a common lesion in COPD characterized by thickening of the airway wall, mainly by subepithelial fibrosis. In this study the thickness of the small airway was determined by total wall area/basement membrane perimeter (WAt/Pbm). Collagen deposition of the small airway was assessed by Masson's trichrome staining. HSYA significantly attenuated the thickening and collagen deposition of the small airway and inhibited transforming growth factor β1 (TGF-β1) mRNA and protein expression in COPD rat. In addition, HSYA inhibited the phosphorylation of p38 mitogen-activated protein kinases (MAPK) in the lung tissue of rat. HSYA can attenuate experimentally induced airway remodeling and this attenuation may be attributed to suppression of TGF-β1 expression.
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Affiliation(s)
- Yu Wang
- Department of Pharmacology, Beijing Institute of Heart Lung and Blood Vessel Diseases-Beijing An Zhen Hospital, Capital Medical University
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Lack of association between the G+2044A polymorphism of interleukin-13 gene and chronic obstructive pulmonary disease: a meta-analysis. Mol Biol Rep 2014; 41:6297-303. [PMID: 24990692 DOI: 10.1007/s11033-014-3512-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2013] [Accepted: 06/19/2014] [Indexed: 01/05/2023]
Abstract
Numerous studies have investigated association of interleukin-13 (IL-13) G+2044A polymorphism with COPD susceptibility; however, the results were inconsistent and inconclusive. To evaluate the association between the IL-13 G+2044A polymorphism and susceptibility to COPD, a meta-analysis of published case-control studies was performed. Based on PubMed and Chinese database, this research selected studies that examined the association of the IL-13 G+2044A polymorphism with COPD. A genetic model-free approach was used to assess whether the combined data showed this association. Then a subgroup analysis was also performed, with stratifications for race, study design, and sample size. Six studies (total 1,213 COPD patients and 801 control subjects) for the IL-13 G+2044A polymorphism with COPD were included in the meta-analysis (G- vs A-allele: OR 1.12, 95 % CI 0.96-1.32, P = 0.15; genotypes GG+GA vs genotype AA: OR 0.99, 95 % CI 0.49-2.00, P = 0.98; genotype GG vs genotypes GA+AA: OR 1.18, 95 % CI 0.97-1.44, P = 0.09; genotype GA vs genotypes GG+AA: OR 0.85, 95 % CI 0.70-1.04, P = 0.11). This meta-analysis demonstrates that the IL-13 G+2044A polymorphism does not confer susceptibility to COPD. More detailed data about individual and environment, larger sample sizes with unbiased genotyping methods and matched controls in different populations are required.
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Novel drug targets for asthma and COPD: lessons learned from in vitro and in vivo models. Pulm Pharmacol Ther 2014; 29:181-98. [PMID: 24929072 DOI: 10.1016/j.pupt.2014.05.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Revised: 05/20/2014] [Accepted: 05/31/2014] [Indexed: 12/28/2022]
Abstract
Asthma and chronic obstructive pulmonary disease (COPD) are highly prevalent respiratory diseases characterized by airway inflammation, airway obstruction and airway hyperresponsiveness. Whilst current therapies, such as β-agonists and glucocorticoids, may be effective at reducing symptoms, they do not reduce disease progression. Thus, there is a need to identify new therapeutic targets. In this review, we summarize the potential of novel targets or tools, including anti-inflammatories, phosphodiesterase inhibitors, kinase inhibitors, transient receptor potential channels, vitamin D and protease inhibitors, for the treatment of asthma and COPD.
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Zou Y, Li S, Zou W, Hu G, Zhou Y, Peng G, He F, Li B, Ran P. Upregulation of gelatinases and epithelial-mesenchymal transition in small airway remodeling associated with chronic exposure to wood smoke. PLoS One 2014; 9:e96708. [PMID: 24802298 PMCID: PMC4011965 DOI: 10.1371/journal.pone.0096708] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 04/10/2014] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Peribronchiolar fibrosis is an important feature of small airway remodeling (SAR) in cigarette smoke-induced COPD. The aim of this study was to investigate the role of gelatinases (MMP9, MMP2) and epithelial-mesenchymal transition (EMT) in SAR related to wood smoke (WS) exposure in a rat model. METHODS Forty-eight female Sprague-Dawley rats were randomly divided into the WS group, the cigarette smoke (CS) group and the clean air control group. After 4 to 7 months of smoke exposure, lung tissues were examined with morphometric measurements, immunohistochemistry and Western blotting. Serum MMP9 and TIMP1 concentrations were detected by ELISA. In vitro, primary rat tracheal epithelial cells were stimulated with wood smoke condensate for 7 days. RESULTS The COPD-like pathological alterations in rats exposed chronically to WS were similar to those exposed to CS; the area of collagen deposition was significantly increased in the small airway walls of those exposed to WS or CS for 7 months. The expression of gelatinases in rats induced by WS or CS exposure was markedly increased in whole lung tissue, and immunohistochemistry showed that MMP9, MMP2 and TIMP1 were primarily expressed in the airway epithelium. The serum levels of MMP9 and TIMP1 were significantly higher in rats secondary to WS or CS exposure. Few cells that double immunostained for E-cadherin and vimentin were observed in the airway subepithelium of rats exposed to WS for 7 months (only 3 of these 8 rats). In vitro, the expression of MMP9 and MMP2 proteins was upregulated in primary rat tracheal epithelial cells following exposure to wood smoke condensate for 7 days by Western blotting; positive immunofluorescent staining for vimentin and type I collagen was also observed. CONCLUSIONS These findings suggest that the upregulation of gelatinases and EMT might play a role in SAR in COPD associated with chronic exposure to wood smoke.
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Affiliation(s)
- Yimin Zou
- The State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Diseases, the First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Shaoxing Li
- The State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Diseases, the First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Weifeng Zou
- Guangzhou Chest Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Guoping Hu
- The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yumin Zhou
- The State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Diseases, the First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Gongyong Peng
- The State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Diseases, the First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Fang He
- The Research Center of Experiment Medicine, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Bing Li
- The Research Center of Experiment Medicine, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Pixin Ran
- The State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Diseases, the First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
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Grace MS, Baxter M, Dubuis E, Birrell MA, Belvisi MG. Transient receptor potential (TRP) channels in the airway: role in airway disease. Br J Pharmacol 2014; 171:2593-607. [PMID: 24286227 PMCID: PMC4009002 DOI: 10.1111/bph.12538] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 11/18/2013] [Indexed: 12/16/2022] Open
Abstract
Over the last few decades, there has been an explosion of scientific publications reporting the many and varied roles of transient receptor potential (TRP) ion channels in physiological and pathological systems throughout the body. The aim of this review is to summarize the existing literature on the role of TRP channels in the lungs and discuss what is known about their function under normal and diseased conditions. The review will focus mainly on the pathogenesis and symptoms of asthma and chronic obstructive pulmonary disease and the role of four members of the TRP family: TRPA1, TRPV1, TRPV4 and TRPM8. We hope that the article will help the reader understand the role of TRP channels in the normal airway and how their function may be changed in the context of respiratory disease.
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Affiliation(s)
- M S Grace
- Respiratory Pharmacology, National Heart and Lung Institute, Faculty of Medicine, Imperial College LondonLondon, UK
| | - M Baxter
- Respiratory Pharmacology, National Heart and Lung Institute, Faculty of Medicine, Imperial College LondonLondon, UK
| | - E Dubuis
- Respiratory Pharmacology, National Heart and Lung Institute, Faculty of Medicine, Imperial College LondonLondon, UK
| | - M A Birrell
- Respiratory Pharmacology, National Heart and Lung Institute, Faculty of Medicine, Imperial College LondonLondon, UK
| | - M G Belvisi
- Respiratory Pharmacology, National Heart and Lung Institute, Faculty of Medicine, Imperial College LondonLondon, UK
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48
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Hua L, Zhou P. Combining protein-protein interactions information with support vector machine to identify chronic obstructive pulmonary disease related genes. Mol Biol 2014. [DOI: 10.1134/s0026893314020101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Guan XJ, Song L, Han FF, Cui ZL, Chen X, Guo XJ, Xu WG. Mesenchymal stem cells protect cigarette smoke-damaged lung and pulmonary function partly via VEGF-VEGF receptors. J Cell Biochem 2013; 114:323-35. [PMID: 22949406 DOI: 10.1002/jcb.24377] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Accepted: 08/13/2012] [Indexed: 12/15/2022]
Abstract
Progressive pulmonary inflammation and emphysema have been implicated in the progression of chronic obstructive pulmonary disease (COPD), while current pharmacological treatments are not effective. Transplantation of bone marrow mesenchymal stem cells (MSCs) has been identified as one such possible strategy for treatment of lung diseases including acute lung injury (ALI) and pulmonary fibrosis. However, their role in COPD still requires further investigation. The aim of this study is to test the effect of administration of rat MSCs (rMSCs) on emphysema and pulmonary function. To accomplish this study, the rats were exposed to cigarette smoke (CS) for 11 weeks, followed by administration of rMSCs into the lungs. Here we show that rMSCs infusion mediates a down-regulation of pro-inflammatory mediators (TNF-α, IL-1β, MCP-1, and IL-6) and proteases (MMP9 and MMP12) in lung, an up-regulation of vascular endothelial growth factor (VEGF), VEGF receptor 2, and transforming growth factor (TGFβ-1), while reducing pulmonary cell apoptosis. More importantly, rMSCs administration improves emphysema and destructive pulmonary function induced by CS exposure. In vitro co-culture system study of human umbilical endothelial vein cells (EA.hy926) and human MSCs (hMSCs) provides the evidence that hMSCs mediates an anti-apoptosis effect, which partly depends on an up-regulation of VEGF. These findings suggest that MSCs have a therapeutic potential in emphysematous rats by suppressing the inflammatory response, excessive protease expression, and cell apoptosis, as well as up-regulating VEGF, VEGF receptor 2, and TGFβ-1.
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Affiliation(s)
- Xiao-Jun Guan
- Department of Respiratory Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200092, China
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Park HY, Man SFP, Tashkin D, Wise RA, Connett JE, Anthonisen NA, Sin DD. The relation of serum myeloperoxidase to disease progression and mortality in patients with chronic obstructive pulmonary disease (COPD). PLoS One 2013; 8:e61315. [PMID: 23637811 PMCID: PMC3630209 DOI: 10.1371/journal.pone.0061315] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Accepted: 03/08/2013] [Indexed: 11/18/2022] Open
Abstract
Myeloperoxidase is a strong oxidant stored in primary granules of neutrophils with potent antibacterial and proatherogenic properties. Myeloperoxidase has been implicated in the pathogenesis of chronic obstructive pulmonary disease (COPD). However, the relationship of myeloperoxidase to health outcomes in COPD is not well known. We measured serum myeloperoxidase levels from 4,677 subjects with mild to moderate airflow limitation in the Lung Health Study. Using a Cox proportional hazards model, we determined the relationship of serum myeloperoxidase concentration to the risk of all-cause and disease specific causes of mortality. We found that serum myeloperoxidase concentrations were significantly related to accelerated decline in forced expiratory volume in 1 second (FEV1) over 11 years of follow-up (p<0.0001), and this association persisted after adjustments for age, sex, race, baseline FEV1, and smoking status (p = 0.048). Serum myeloperoxidase concentrations were also associated with increased risk of cardiovascular mortality (p = 0.036). Individuals in the highest quintile of myeloperoxidase had a hazard ratio of cardiovascular mortality of 1.90 (95% confidence interval 1.00–3.58; p = 0.049) compared with those in the lowest quintile, which was particularly notable in patients who continued to smoke (adjusted p-value of 0.0396). However, serum myeloperoxidase concentration was not related to total mortality, respiratory mortality, or deaths from malignancies. In conclusion, increased serum myeloperoxidase levels are associated with rapid lung function decline and poor cardiovascular outcomes in COPD patients, which support the emerging role of myeloperoxidase in the pathogenesis of COPD progression and cardiovascular disease.
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Affiliation(s)
- Hye Yun Park
- UBC James Hogg Research Center and The Institute of Heart and Lung Institute, St. Paul’s Hospital, Vancouver, British Columbia, Canada
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Seoul, S. Korea
| | - S. F. Paul Man
- UBC James Hogg Research Center and The Institute of Heart and Lung Institute, St. Paul’s Hospital, Vancouver, British Columbia, Canada
- Department of Medicine (Pulmonary Division), University of British Columbia, Vancouver, British Columbia, Canada
| | - Donald Tashkin
- Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, United States of America
| | - Robert A. Wise
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - John E. Connett
- Division of Biostatistics, School of Public Health, University of Minnesota, Minneapolis, Minnesota, United States of America
| | | | - Don D. Sin
- UBC James Hogg Research Center and The Institute of Heart and Lung Institute, St. Paul’s Hospital, Vancouver, British Columbia, Canada
- Department of Medicine (Pulmonary Division), University of British Columbia, Vancouver, British Columbia, Canada
- * E-mail:
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