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Masjedy A, Salesi M, Ahmadi A, Salimian J, Azimzadeh Jamalkandi S. Association between single-nucleotide polymorphism of cytokines genes and chronic obstructive pulmonary disease: A systematic review and meta-analysis. Cytokine 2023; 171:156352. [PMID: 37703677 DOI: 10.1016/j.cyto.2023.156352] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/22/2023] [Accepted: 08/26/2023] [Indexed: 09/15/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is a common chronic inflammatory disease with high morbidity and mortality rates worldwide. Cytokines, which are the main regulators of immune responses, play crucial roles in inflammatory diseases such as COPD. Moreover, certain genetic variations can alter cytokine expression, and changes in cytokine level or function can affect disease susceptibility. Therefore, investigating the association between genetic variations and disease progression can be useful for prevention and treatment. Several studies have explored the association between common genetic variations in cytokine genes and COPD susceptibility. In this study, we summarized the reported studies and, where possible, conducted a systematic review and meta-analysis to evaluate the genetic association between various cytokines and COPD pathogenesis. We extracted relevant articles from PubMed and Google Scholar databases using a standard systematic search strategy. We included a total of 183 studies from 78 separate articles that evaluated 50 polymorphisms in 12 cytokine genes in this study. Our analysis showed that among all reported cytokine polymorphisms (including TNF-α, TGF-β, IL1, IL1RN, IL4, IL4R, IL6, IL10, IL12, IL13, IL17, IL18, IL27, and IL33), only four variants, including TNF-α-rs1800629, TGF-β1-rs6957, IL13-rs1800925, and IL6-rs1800796, were associated with the risk of COPD development. This updated meta-analysis strongly supports the association of TNF-α-rs1800629, TGF-β1-rs6957, IL13-rs1800925, and IL6-rs1800796 variants with a high risk of COPD.
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Affiliation(s)
- Ali Masjedy
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mahmood Salesi
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ali Ahmadi
- Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Jafar Salimian
- Applied Virology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Sadegh Azimzadeh Jamalkandi
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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Chronic Inflammation as the Underlying Mechanism of the Development of Lung Diseases in Psoriasis: A Systematic Review. Int J Mol Sci 2022; 23:ijms23031767. [PMID: 35163689 PMCID: PMC8836589 DOI: 10.3390/ijms23031767] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 01/30/2022] [Accepted: 02/02/2022] [Indexed: 01/04/2023] Open
Abstract
Psoriasis is a systemic inflammatory disease caused by dysfunctional interactions between the innate and adaptive immune responses. The systemic inflammation in psoriasis may be associated with the development of comorbidities, including lung diseases. In this review, we aimed to provide a summary of the evidence regarding the prevalence of lung diseases in patients with psoriasis and the potential underlying mechanisms. Twenty-three articles published between March 2010 and June 2021 were selected from 195 initially identified records. The findings are discussed in terms of the prevalence of asthma, chronic obstructive pulmonary disease, interstitial lung disease, obstructive sleep apnea, pulmonary hypertension, and sarcoidosis in psoriasis. A higher prevalence of lung diseases in psoriasis has been confirmed in asthma, chronic obstructive pulmonary disease, obstructive sleep apnea, and pulmonary hypertension. These conditions are important as they are previously unrecognized causes of morbidity and mortality in psoriasis. The development of lung diseases in patients with psoriasis can be explained by several mechanisms, including common risk factors, shared immune and molecular characteristics associated with chronic inflammation, as well as other mechanisms. Understanding the prevalence of lung diseases in psoriasis and their underlying mechanisms can help implement appropriate preventative and therapeutic strategies to address respiratory diseases in patients with psoriasis.
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Abstract
This article provides an overview of the pathophysiology of chronic obstructive pulmonary disease including the physiological mechanisms that are known precursors. The roles of environmental and genetic causes are considered. α1-Antitrypsin deficiency is also discussed as it relates to the development of airflow obstruction.
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Affiliation(s)
- Jennifer Leap
- Division of Pulmonary Critical Care Medicine, Allegheny Health Network, Allegheny General Hospital, Pittsburgh, Pennsylvania
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Nair M, Jagadeeshan S, Katselis G, Luan X, Momeni Z, Henao-Romero N, Chumala P, Tam JS, Yamamoto Y, Ianowski JP, Campanucci VA. Lipopolysaccharides induce a RAGE-mediated sensitization of sensory neurons and fluid hypersecretion in the upper airways. Sci Rep 2021; 11:8336. [PMID: 33863932 PMCID: PMC8052339 DOI: 10.1038/s41598-021-86069-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 03/02/2021] [Indexed: 02/07/2023] Open
Abstract
Thoracic dorsal root ganglia (tDRG) contribute to fluid secretion in the upper airways. Inflammation potentiates DRG responses, but the mechanisms remain under investigation. The receptor for advanced glycation end-products (RAGE) underlies potentiation of DRG responses in pain pathologies; however, its role in other sensory modalities is less understood. We hypothesize that RAGE contributes to electrophysiological and biochemical changes in tDRGs during inflammation. We used tDRGs and tracheas from wild types (WT), RAGE knock-out (RAGE-KO), and with the RAGE antagonist FPS-ZM1, and exposed them to lipopolysaccharides (LPS). We studied: capsaicin (CAP)-evoked currents and action potentials (AP), tracheal submucosal gland secretion, RAGE expression and downstream pathways. In WT neurons, LPS increased CAP-evoked currents and AP generation, and it caused submucosal gland hypersecretion in tracheas from WT mice exposed to LPS. In contrast, LPS had no effect on tDRG excitability or gland secretion in RAGE-KO mice or mice treated with FPS-ZM1. LPS upregulated full-length RAGE (encoded by Tv1-RAGE) and downregulated a soluble (sRAGE) splice variant (encoded by MmusRAGEv4) in tDRG neurons. These data suggest that sensitization of tDRG neurons contributes to hypersecretion in the upper airways during inflammation. And at least two RAGE variants may be involved in these effects of LPS.
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Affiliation(s)
- Manoj Nair
- Department of Anatomy, Physiology and Pharmacology (APP), College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada
| | - Santosh Jagadeeshan
- Department of Anatomy, Physiology and Pharmacology (APP), College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada
| | - George Katselis
- Department of Medicine, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada
| | - Xiaojie Luan
- Department of Medicine, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada
| | - Zeinab Momeni
- Department of Anatomy, Physiology and Pharmacology (APP), College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada
| | - Nicolas Henao-Romero
- Department of Anatomy, Physiology and Pharmacology (APP), College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada
| | - Paulos Chumala
- Department of Medicine, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada
| | - Julian S Tam
- Department of Medicine, Division of Respirology, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada
| | - Yasuhiko Yamamoto
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Science, Kanazawa, 920-8640, Japan
| | - Juan P Ianowski
- Department of Anatomy, Physiology and Pharmacology (APP), College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada
| | - Verónica A Campanucci
- Department of Anatomy, Physiology and Pharmacology (APP), College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada.
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Guiedem E, Pefura-Yone EW, Ikomey GM, Nkenfou CN, Mesembe M, Yivala MM, Chendi BH, Jacobs GB, Chegou NN, Okomo MCA. Cytokine profile in the sputum of subjects with post-tuberculosis airflow obstruction and in those with tobacco related chronic obstructive pulmonary disease. BMC Immunol 2020; 21:52. [PMID: 32998687 PMCID: PMC7528576 DOI: 10.1186/s12865-020-00381-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 09/03/2020] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Previous studies have shown that tuberculosis (TB) is a risk factor for chronic airflow limitation. Chronic obstructive pulmonary disease (COPD) is recognized as the result of chronic inflammation, usually related to noxious particles. Post-TB airflow obstruction and tobacco-related COPD have the same functional pathway characterized by persistent airflow limitation. We sought to compare the profile of 29 cytokines in the sputum of subjects with post-TB airflow obstruction and those with COPD related to tobacco. RESULTS The forced expiratory volume in the first second (FEV1) and forced expiratory volume/forced vital capacity (FEV/FVC) ratio were lower in the COPD patients with the history of smoking compared to the post-TB airflow obstruction subgroup. The stages of the disease were more advanced in COPD / tobacco patients. Among the cytokines, IL-1α, IL-1β, MIP-1β, sCD40L and VEGF levels were higher in COPD patients, compared to the controls with p values of 0.003, 0.0001, 0.03, 0.0001 and 0.02 respectively. When the two COPD subgroups were compared, IL-1α, IL-6, TNF-α and IL-8 levels were higher in the COPD patients with the history of tobacco compared to the COPD patients with the history of TB with p-values of 0.031, 0.05, 0.021 and 0.016, respectively. CONCLUSION COPD related to tobacco is more severe than post-TB airflow obstruction. The pathogenesis of post-TB airflow obstruction appears to involve the cytokines IL-1RA, IL-1α, IL-1β, IL-17, GRO and sCD40L, while COPD related to tobacco involves more cytokines.
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Affiliation(s)
- Elise Guiedem
- Center for the Study and Control of Communicable Diseases (CSCCD), Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon.
| | | | - George Mondinde Ikomey
- Center for the Study and Control of Communicable Diseases (CSCCD), Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon
| | - Céline Nguefeu Nkenfou
- Chantal BIYA International Reference Centre for Research on HIV/AIDS Prevention and Management (CBIRC), Yaoundé, Cameroon
- Higher Teachers Training College, University of Yaoundé 1, Yaoundé, Cameroon
| | - Martha Mesembe
- Center for the Study and Control of Communicable Diseases (CSCCD), Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon
| | - Mbanyamsig Mispa Yivala
- Center for the Study and Control of Communicable Diseases (CSCCD), Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon
| | - Bih Hycenta Chendi
- DST-NRF Centre of Excellence for Biomedical Tuberculosis Research; and SAMRC Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 241, Cape Town, 8000, South Africa
| | - Graeme Brendon Jacobs
- Division of Medical Virology, Department of Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 241, Cape Town, 8000, South Africa
| | - Novel Njweipi Chegou
- DST-NRF Centre of Excellence for Biomedical Tuberculosis Research; and SAMRC Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 241, Cape Town, 8000, South Africa
| | - Marie Claire Assoumou Okomo
- Center for the Study and Control of Communicable Diseases (CSCCD), Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon
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Liu Z, Chen S, Xu Y, Liu X, Xiong P, Fu Y. Surfactant protein A expression and distribution in human lung samples from smokers with or without chronic obstructive pulmonary disease in China. Medicine (Baltimore) 2020; 99:e19118. [PMID: 32049827 PMCID: PMC7035059 DOI: 10.1097/md.0000000000019118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Cigarette smoking is considered the main risk factor for chronic obstructive pulmonary disease (COPD), although the mechanism remains unknown. surfactant protein A (SP-A) is thought to protect the lung from smoking-induced damage, but related studies performed in China are scarce. The aim of the study is to assess alterations of SP-A expression and distribution in lung samples from Chinese smokers with or without COPD.This cross-sectional study assessed 45 men in Wuhan Tongji Hospital after lobectomy for lung cancer in June 2010 to September 2010. Peripheral lung specimens were collected from control nonsmokers without airflow obstruction (nonsmoking group, n = 15), smokers without airflow obstruction (smoking group, n = 15), and patients with COPD (COPD group, n = 15). SP-A expression levels in lung tissue samples and its distribution in lung cells, type II pneumocytes (PNII), and alveolar macrophages (MACR) were determined by immunoblotting and immunohistochemistry.SP-A levels were significantly decreased in the COPD group (1.00 ± 0.25) compared with the smoking (2.31 ± 0.64) and nonsmoking (8.03 ± 2.80) groups; the smoking group also showed significantly reduced levels compared with the nonsmoking group (P < .05). PNII expressing SP-A were less abundant in the COPD group (39.3% ± 7.1%) compared with the smoking group (76.2% ± 29.8%), whereas SP-A MACR were more abundant (92.4% ± 7.1% vs 68.5% ± 20.2%) (all P < .05). Among the 30 smokers, forced expiratory volume in one second (% predicted) was positively correlated with SP-A levels (r = 0.739) and the rate of SP-A+ PNII (r = 0.811), and negatively correlated with the rate of SP-A+ MACR (r = -0.758) (all P < .05).Changes in SP-A expression and distribution in lung tissues may be involved in COPD pathogenesis in smokers.
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Affiliation(s)
- Zhizhen Liu
- Department of Respiratory Medicine, Yiwu Fuyuan Hospital
| | - Siyang Chen
- Department of Cardiothoracic Surgery, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu
| | - Yongjian Xu
- Department of Respiratory Medicine, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - Xiansheng Liu
- Department of Respiratory Medicine, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - Pian Xiong
- Department of Infectious Disease, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, China
| | - Yu Fu
- Department of Respiratory Medicine, Yiwu Fuyuan Hospital
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Salimi Asl M, Ahmadi A, Salimian J, Shohani S, Azimzadeh Jamalkandi S, Ghanei M. TNF-α -308 G/A variant and susceptibility to chronic obstructive pulmonary disease: A systematic review and meta-analysis. Cytokine 2019; 123:154763. [PMID: 31260854 DOI: 10.1016/j.cyto.2019.154763] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 05/20/2019] [Accepted: 06/17/2019] [Indexed: 01/13/2023]
Abstract
BACKGROUND AND OBJECTIVE TNF-α -308 G/A variant is recognized to play an important role in the pathogenesis of chronic obstructive pulmonary disease (COPD). Although many studies have investigated the association of TNF-α-308 and COPD risk, a deep understanding of this association is lacking due to small subjects sizes and insufficiently study designs among different investigations. In this study, a systematic review and meta-analysis was performed based on published reports on the association of TNF-α and COPD. METHOD The published studies concerned the association between TNF-α and COPD were identified using a systematic research in Scopus, Google Scholar, and PubMed up to April 2018. A total of 46 different papers studying the rs1800629 variant in TNF-α gene were included. Then, human studies were selected to further analysis regardless of papers language. RESULTS Based on the results, the major outcome of this meta-analysis can be represented as follows: individuals with GG and GA genotypes possess less risk of developing COPD (OR = 0.58, 95%CI: (0.44-0.79), P < 0.00) compared to AA genotype carriers. In contrast, the AA genotype carriers of the TNF-α rs1800629 has a significantly higher risk of developing COPD (OR = 1.83, 95%CI: (1.34-2.51), P < 0.00) compared to GG carrier. Despite the previous meta-analysis results which reported significantly decreasing of heterogeneity with ethnicity, we found that the source of controls has a significant contribution to observed heterogeneity. CONCLUSIONS Thanks to the global burden of COPD studies, proving TNF-α 308 gene variant as an independent factor in its pathogenesis opens new insights to diagnosis and management of COPD.
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Affiliation(s)
- Mohammad Salimi Asl
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ali Ahmadi
- Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Jafar Salimian
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Sepideh Shohani
- Department of Biotechnology and Molecular Medicine, Faculty of Medicine, Arak University of Medical Science, Arak, Iran
| | - Sadegh Azimzadeh Jamalkandi
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | - Mostafa Ghanei
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Whole-genome methylation profiling of peripheral blood mononuclear cell for acute exacerbations of chronic obstructive pulmonary disease treated with corticosteroid. Pharmacogenet Genomics 2018; 28:78-85. [DOI: 10.1097/fpc.0000000000000325] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Reséndiz-Hernández JM, Ambrocio-Ortiz E, Pérez-Rubio G, López-Flores LA, Abarca-Rojano E, Pavón-Romero GF, Flores-Trujillo F, de Jesús Hernández-Zenteno R, Camarena Á, Pérez-Rodríguez M, Salazar AM, Ramírez-Venegas A, Falfán-Valencia R. TNF promoter polymorphisms are associated with genetic susceptibility in COPD secondary to tobacco smoking and biomass burning. Int J Chron Obstruct Pulmon Dis 2018; 13:627-637. [PMID: 29497291 PMCID: PMC5819586 DOI: 10.2147/copd.s147688] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Background Smoking and smoke from biomass burning (BB) are the main environmental risk factors for COPD. Clinical differences have been described between COPD related to smoking and related to wood smoke, but no studies have shown genetic differences between patients exposed to these two risk factors. Methods To investigate a possible association of tumor necrosis factor (TNF) promoter polymorphisms, we conducted a case–control study. A total of 1,322 subjects were included in four groups: patients with a diagnosis of COPD secondary to smoking (COPD-S, n=384), patients with COPD secondary to biomass burning (COPD-BB, n=168), smokers without COPD (SWOC, n=674), and biomass burning-exposed subjects (BBES n=96). Additionally, a group of 950 Mexican mestizos (MMs) was included as a population control. Three single nucleotide polymorphisms (SNPs) were selected in the TNF gene (rs1800629, rs361525, and rs1800750) and one SNP in the lymphotoxin alpha gene (rs909253). Results Statistically significant differences were found with genotype GA of the rs1800629: COPD-S vs SWOC, (p<0.001, odds ratio [OR] =2.55, 95% CI=1.53–4.27); COPD-S vs COPD-BB (p,0.01). When performing the comparison of the less severe (G1: I + II) and the more severe (G2: III + IV) levels, differences were identified in G1 (p<0.05, OR=1.94, 95% CI=1.04–3.63) and G2 (p<0.001, OR=3.68, 95% CI=1.94–3.07) compared with SWOC. Regarding genotype GA of rs361525, it has been associated when comparing COPD-BB vs BBES (p=0.0079, OR=5.99, 95% CI=1.38–53.98). Conclusion The heterozygous genotype GA of polymorphisms rs1800629 and rs361525 in the TNF promoter are associated with the risk of COPD.
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Affiliation(s)
| | - Enrique Ambrocio-Ortiz
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Gloria Pérez-Rubio
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Luis Alberto López-Flores
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Edgar Abarca-Rojano
- Research and Graduate Studies Section, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Gandhi Fernando Pavón-Romero
- Department of Allergy and Clinical Immunology, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Fernando Flores-Trujillo
- Tobacco Smoking and COPD Research Department, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Rafael de Jesús Hernández-Zenteno
- Tobacco Smoking and COPD Research Department, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Ángel Camarena
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Martha Pérez-Rodríguez
- Unit of Medical Research in Immunology, CMN S-XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Ana María Salazar
- Department of Genomic Medicine and Environmental Toxicology, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Alejandra Ramírez-Venegas
- Tobacco Smoking and COPD Research Department, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Ramcés Falfán-Valencia
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
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Yuan C, Chang D, Lu G, Deng X. Genetic polymorphism and chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis 2017; 12:1385-1393. [PMID: 28546746 PMCID: PMC5436778 DOI: 10.2147/copd.s134161] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a common chronic disease, and its morbidity and mortality are increasing. There are many studies that have tried to explain the pathogenesis of COPD from genetic susceptibility, to identify the susceptibility of COPD factors, which play a role in early prevention, early detection and the early treatment. However, it is well known that COPD is an inflammatory disease characterized by incomplete reversible airflow limitation in which genes interact with the environment. In recent years, many studies have proved gene polymorphisms and COPD correlation. However, there is less research on the relationship between COPD and genome-wide association study (GWAS), epigenetics and apoptosis. In this paper, we summarized the correlation between gene level and COPD from the following four aspects: the GWAS, the gene polymorphism, the epigenetics and the apoptosis, and the relationship between COPD and gene is summarized comprehensively.
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Affiliation(s)
| | - De Chang
- Department of Respiratory Medicine, General Hospital of Chinese People's Armed Police Forces
| | - Guangming Lu
- Institute of Health Management, Chinese PLA General Hospital, Beijing, People's Republic of China
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Zhang L, Gu H, Gu Y, Zeng X. Association between TNF-α -308 G/A polymorphism and COPD susceptibility: a meta-analysis update. Int J Chron Obstruct Pulmon Dis 2016; 11:1367-79. [PMID: 27382273 PMCID: PMC4922767 DOI: 10.2147/copd.s105394] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background and objective The association between TNF-α −308 G/A polymorphism and COPD remains controversial due to insufficiently strict study designs and small group sizes among different studies. In the present study, a meta-analysis update which followed a stricter procedure was performed to obtain a clearer understanding of this association. Methods A comprehensive database search was conducted to identify the case–control studies published up to July 2015 which reported an association between the TNF-α −308 G/A polymorphism and COPD risk. Data were extracted to calculate pooled odds ratios with 95% confidence intervals under the most appropriate genetic and allelic models. Sensitivity was analyzed, and heterogeneity as well as publication bias was assessed. Results Thirty-eight eligible studies, comprising 3,951 COPD cases and 5,110 controls, were included in this study, among which 22 studies comprising 2,067 COPD cases and 2,167 controls were performed in Asians, and 16 studies comprising 1,884 COPD cases and 2,943 controls were in non-Asians. The overall result showed that TNF-α −308 G/A polymorphisms were significantly associated with increased COPD risk in both the codominant genetic and allelic models. Individuals with the GA or AA genotype were more susceptible to COPD development than those with the GG genotype. In addition, individuals with the AA genotype were more susceptible to developing COPD than those with the GA genotype. The subgroup analysis stratified by ethnicity supported the results in Asians but not in non-Asians. However, no association was found between TNF-α −308 G/A polymorphisms and COPD susceptibility either in Asians or in non-Asians in the meta-analysis conducted with restriction to former/current smokers. Conclusion The present meta-analysis suggested that the TNF-α −308 G/A polymorphism was associated with an increased risk of COPD among Asians but not in non-Asians. Furthermore, individuals with the AA genotype of TNF-α −308 were more susceptible to developing COPD.
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Affiliation(s)
| | - Hao Gu
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, People's Republic of China
| | - Yihang Gu
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, People's Republic of China
| | - Xiaoning Zeng
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, People's Republic of China
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12
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Margelidon-Cozzolino V, Chbini K, Freymond N, Devouassoux G, Belaaouaj A, Pacheco Y. [COPD: An early disease]. REVUE DE PNEUMOLOGIE CLINIQUE 2016; 72:49-60. [PMID: 26657351 PMCID: PMC7126852 DOI: 10.1016/j.pneumo.2015.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 08/16/2015] [Indexed: 05/04/2023]
Abstract
This general review deals with the mechanisms which underlie the genetic factors in COPD. Many cellular and biochemical mechanisms occur in bronchial inflammation. We present the experimental models of COPD, insisting on the importance of oxydative stress, and on recent knowledge about the lung microbiome. Starting from this pathophysiology basis, we show how various genetic targets are able to interfere with the disease model. Thanks to these genetic targets, new markers in exhaled breath condensates and new drug targets are rising.
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Affiliation(s)
- V Margelidon-Cozzolino
- Service de pneumologie A, centre hospitalier de Lyon Sud, hospices civils de Lyon, faculté de médecine, université Claude-Bernard Lyon 1, 69310 Pierre-Bénite, France.
| | - K Chbini
- Service de cardiologie, CHU Mohammed VI, faculté de médecine et de pharmacie, université Cadi Ayyad, Marrakech, Maroc
| | - N Freymond
- Service de pneumologie A, centre hospitalier de Lyon Sud, hospices civils de Lyon, 69310 Pierre-Bénite, France
| | - G Devouassoux
- Service de pneumologie, hôpital de la Croix Rousse, hospices civils de Lyon, faculté de médecine Lyon Sud, université Claude-Bernard Lyon 1, 69005 Lyon, France
| | - A Belaaouaj
- Inserm 1111, faculté de médecine Lyon Sud, chemin du Grand-Revoyet, 69310 Pierre-Bénite, France
| | - Y Pacheco
- Service de pneumologie A, centre hospitalier de Lyon Sud, hospices civils de Lyon, faculté de médecine Lyon Sud, université Claude-Bernard Lyon 1, 69310 Pierre-Bénite, France
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13
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Vaidyanathan A, Damodar KS. Increased metabolic activity of neutrophils in patients with chronic obstructive pulmonary disease. Lung India 2015; 32:589-92. [PMID: 26664165 PMCID: PMC4663862 DOI: 10.4103/0970-2113.168134] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Aims: To compare the metabolic activity of peripheral neutrophils in patients diagnosed with chronic obstructive pulmonary disease (COPD) with that of healthy, nonsmoking volunteers. Materials and Methods: Venous blood samples were taken from patients diagnosed with COPD as well as from healthy nonsmokers. Each sample was subjected to the nitro blue tetrazolium (NBT) test in which neutrophils exhibiting elevated metabolic activity were detected by light microscopy. The test was repeated after stimulation with Escherichia coli (E. coli) endotoxin with fresh samples. Neutrophils showing dye uptake were then counted in each case. Results: We found that the mean numbers of activated neutrophils without and with the addition of endotoxin were 19% and 23%, respectively, in the control group and 56% and 62%, respectively, in the test group. Two-sample t-test statistic revealed that there was a significant (P < 0.01) increase in neutrophilic metabolic activity in patients with COPD as compared to that in healthy volunteers. This significance remained even after stimulation using E. coli endotoxin. Conclusion: The results hint at a potentially relevant pathogenic mechanism in COPD related to the metabolic activity of neutrophils. By exhibiting enhanced metabolic activity, neutrophils in the COPD patients are more likely to be involved in damaging lung tissues.
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Affiliation(s)
- Ashwin Vaidyanathan
- Department of Physiology, Vydehi Institute of Medical Sciences and Research Center, Bangalore, Karnataka, India
| | - Komaladevi Sampath Damodar
- Department of Physiology, Vydehi Institute of Medical Sciences and Research Center, Bangalore, Karnataka, India
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14
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Reséndiz-Hernández JM, Sansores RH, Hernández-Zenteno RDJ, Vargas-Alarcón G, Colín-Barenque L, Velázquez-Uncal M, Camarena A, Ramírez-Venegas A, Falfán-Valencia R. Identification of genetic variants in the TNF promoter associated with COPD secondary to tobacco smoking and its severity. Int J Chron Obstruct Pulmon Dis 2015; 10:1241-51. [PMID: 26170653 PMCID: PMC4493967 DOI: 10.2147/copd.s83298] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is an inflammatory disease that arises in response to noxious particles or gases. Associations of genetic polymorphisms in TNF have been reported in Asians and Caucasians, but not in Mestizo populations. A case-control study was conducted in two stages: in the first stage, patients with COPD (COPD group, n=165) and smokers without disease (SNC group, n=165) were included and the TNF promoter sequence was determined using direct sequencing. In the second stage, the identified polymorphisms were validated by real-time polymerase chain reaction (PCR) in COPD (n=260) and SNC (n=506). In the first stage, 11 different sets of “contig” alignments were determined, of which contig 10 was found to be associated with susceptibility (P=5.0E-04, OR [odds ratio] =3.64) and contig 1 with Global Initiative for COPD (GOLD) greater grade (P=1.0E-02, OR =3.82). The single nucleotide polymorphisms found in this region were individually identified; the GA genotypes of rs1800629 (P=0.038, OR =2.07), rs56036015 (P=0.0082, OR =3.18), and rs361525 (P=1.0E-02, OR =4.220) were higher in the COPD group vs the SNC group; after second-stage validation, rs1800629 (P=6.00E-03, OR =2.26) and rs56036015 (P=1.10E-03, OR =2.54) are maintained. There are genetic variants in the TNF promoter associated with increased risk of COPD secondary to smoking and with a higher GOLD grade in the Mexican Mestizo population.
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Affiliation(s)
- Juan Manuel Reséndiz-Hernández
- Laboratory HLA, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico ; Graduate Program in Biological Sciences, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Raúl H Sansores
- Research Department in smoking and COPD, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Rafael de Jesús Hernández-Zenteno
- Research Department in smoking and COPD, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Gilber Vargas-Alarcón
- Department of Molecular Biology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | - Laura Colín-Barenque
- Department of Neuroscience, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla de Baz, Mexico State, Mexico
| | - Mónica Velázquez-Uncal
- Research Department in smoking and COPD, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Angel Camarena
- Laboratory HLA, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Alejandra Ramírez-Venegas
- Research Department in smoking and COPD, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
| | - Ramcés Falfán-Valencia
- Laboratory HLA, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City, Mexico
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15
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Chen Z, Salam MT, Eckel SP, Breton CV, Gilliland FD. Chronic effects of air pollution on respiratory health in Southern California children: findings from the Southern California Children's Health Study. J Thorac Dis 2015; 7:46-58. [PMID: 25694817 DOI: 10.3978/j.issn.2072-1439.2014.12.20] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 11/20/2014] [Indexed: 01/05/2023]
Abstract
Outdoor air pollution is one of the leading contributors to adverse respiratory health outcomes in urban areas around the world. Children are highly sensitive to the adverse effects of air pollution due to their rapidly growing lungs, incomplete immune and metabolic functions, patterns of ventilation and high levels of outdoor activity. The Children's Health Study (CHS) is a continuing series of longitudinal studies that first began in 1993 and has focused on demonstrating the chronic impacts of air pollution on respiratory illnesses from early childhood through adolescence. A large body of evidence from the CHS has documented that exposures to both regional ambient air and traffic-related pollutants are associated with increased asthma prevalence, new-onset asthma, risk of bronchitis and wheezing, deficits of lung function growth, and airway inflammation. These associations may be modulated by key genes involved in oxidative-nitrosative stress pathways via gene-environment interactions. Despite successful efforts to reduce pollution over the past 40 years, air pollution at the current levels still brings many challenges to public health. To further ameliorate adverse health effects attributable to air pollution, many more toxic pollutants may require regulation and control of motor vehicle emissions and other combustion sources may need to be strengthened. Individual interventions based on personal susceptibility may be needed to protect children's health while control measures are being implemented.
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Affiliation(s)
- Zhanghua Chen
- 1 Department of Preventive Medicine, Division of Environmental Health, 2 Department of Preventive Medicine, Division of Biostatistics, Keck School of Medicine, University of Southern California, Los Angeles, CA 90032, USA
| | - Muhammad T Salam
- 1 Department of Preventive Medicine, Division of Environmental Health, 2 Department of Preventive Medicine, Division of Biostatistics, Keck School of Medicine, University of Southern California, Los Angeles, CA 90032, USA
| | - Sandrah P Eckel
- 1 Department of Preventive Medicine, Division of Environmental Health, 2 Department of Preventive Medicine, Division of Biostatistics, Keck School of Medicine, University of Southern California, Los Angeles, CA 90032, USA
| | - Carrie V Breton
- 1 Department of Preventive Medicine, Division of Environmental Health, 2 Department of Preventive Medicine, Division of Biostatistics, Keck School of Medicine, University of Southern California, Los Angeles, CA 90032, USA
| | - Frank D Gilliland
- 1 Department of Preventive Medicine, Division of Environmental Health, 2 Department of Preventive Medicine, Division of Biostatistics, Keck School of Medicine, University of Southern California, Los Angeles, CA 90032, USA
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16
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Samareh Fekri M, Hashemi Bajgani SM, Rasti A, Yazdani R, Mollaie HR. Detection of helicobacter pylori in bronchoalveolar lavage of patients with chronic obstructive pulmonary disease by real time polymerase chain reaction. Jundishapur J Microbiol 2014; 8:e14551. [PMID: 25789128 PMCID: PMC4350048 DOI: 10.5812/jjm.14551] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 01/11/2014] [Accepted: 01/20/2014] [Indexed: 12/21/2022] Open
Abstract
Background: Chronic obstructive pulmonary disease (COPD) is one of the most important causes of disability and mortality in the world. Although cigarette smoking and environmental pollutants have been recognized as the major causes of COPD, the role of infection in the pathogenesis and progression of COPD has also been reported. Objectives: The aim of the present study was to find the relationship between Helicobacter Pylori infection and COPD through anti H. pylori IgG serology, real time PCR of bronchoalveolar lavage and trans bronchial biopsy urease tests. Patients and Methods: This descriptive cross-sectional study was carried out on 60 adults with COPD. After obtaining the patient’s history, physical examination, spirometry and confirmation of COPD diagnosis by pulmonologist, subjects were selected through convenience sampling. In order to determine the severity and prognosis of disease, the global initiative for chronic obstructive lung disease (GOLD) criteria and BODE index were used. Subjects underwent bronchoscopy for obtaining bronchoalveolar lavage (BAL) samples and biopsy was performed. Biopsy and BAL samples were investigated respectively by urease test and real time PCR. Moreover, patients’ serum samples were serologically studied for detection of anti H. pylori IgG. Results: Mean age of the participants was 60.65 ± 9.15 years, and 25% were female and 75% were male. The prevalence rate of H. pylori in COPD patients was 10% according to real time PCR, 88.3% according to the serology test and 0% based on the urease test. According to the results of PCR and considering the severity of disease based on the GOLD criteria, from those with a positive PCR, one patient (16.6%) had very severe obstruction, three (50%) had severe obstruction and two patients (33.3%) had moderate obstruction. The relationship between H. pylori presence (based on PCR) and disease severity and prognosis was not statistically significant. Conclusions: These findings can justify the hypothesis of direct injury and chronic inflammation via inhalation and aspiration resulting in H. pylori colonization. In fact, it is thought that H. Pylori infection, beside the host genetic vulnerability and other environmental risk factors might make the patient susceptible to COPD or lead to COPD worsening. Although we found H. pylori infection in some patients with COPD, the results of this study, could not explain the pathogenic mechanisms of COPD.
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Affiliation(s)
- Mitra Samareh Fekri
- Physiology Research Center (PRC), Kerman University of Medical Sciences, Kerman, IR Iran
| | | | - Atefe Rasti
- Physiology Research Center (PRC), Kerman University of Medical Sciences, Kerman, IR Iran
- Corresponding author: Atefe Rasti, Physiology Research Center (PRC), Kerman University of Medical Sciences, Kerman, IR Iran. Tel: +98-9177108194, Fax: +98-3432264097, E-mail:
| | - Rostam Yazdani
- Afzalipour Hospital, Kerman University of Medical Sciences, Kerman, IR Iran
| | - Hamid Reza Mollaie
- Afzalipour Hospital, Kerman University of Medical Sciences, Kerman, IR Iran
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17
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Tarnoki DL, Tarnoki AD, Lazar Z, Korom C, Berczi V, Horvath I, Karlinger K. A possible genetic influence in parenchyma and small airway changes in COPD: a pilot study of twins using HRCT. ACTA ACUST UNITED AC 2014; 101:167-75. [PMID: 24901078 DOI: 10.1556/aphysiol.101.2014.2.5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
UNLABELLED Genetic effects that contribute to the risk of developing chronic obstructive pulmonary disease (COPD) have been reported. Our purpose was to estimate the possible genetic influence on CT features related to COPD in twins. METHODS Two COPD-discordant and one COPD-concordant monozygotic (MZ) twin pair, in addition to 2 control dizygotic (DZ) twin pairs underwent a low-dose high resolution computer tomography (HRCT) in inspiration and expiration (Philips Brilliance 16). RESULTS Monozygotic twins were more similar in lung volume expiration and in air trapping score compared to dizygotics (382 cm(3) vs. 2303 cm(3) and 17.6% vs. 26.6%, respectively). In general, MZ twin pairs showed almost identical HRCT features independently of smoking attitude and COPD status. The dizygotic twin pairs showed larger differences in HRCT features compared to MZ twins. CONCLUSIONS Lung parenchymal and small airway changes (lung density, presence of bronchial wall thickening, bronchiectasis and/or mucus plug formation, air trapping and emphysema score) seem to be genetically associated traits, independently of smoking/COPD history. A future study with a larger sample size should confirm our findings.
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Affiliation(s)
- D L Tarnoki
- Semmelweis University Department of Radiology and Oncotherapy Üllői út 78/a H-1082 Budapest Hungary
| | - A D Tarnoki
- Semmelweis University Department of Radiology and Oncotherapy Üllői út 78/a H-1082 Budapest Hungary
| | - Zs Lazar
- Semmelweis University Department of Pulmonology Budapest Hungary
| | - Cs Korom
- Semmelweis University Department of Radiology and Oncotherapy Üllői út 78/a H-1082 Budapest Hungary
| | - V Berczi
- Semmelweis University Department of Radiology and Oncotherapy Üllői út 78/a H-1082 Budapest Hungary
| | - I Horvath
- Semmelweis University Department of Pulmonology Budapest Hungary
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18
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Is TNF-α gene polymorphism related to pulmonary functions and prognosis as determined by FEV1, BMI, COPD exacerbation and hospitalization in patients with smoking-related COPD in a Turkish population? REVISTA PORTUGUESA DE PNEUMOLOGIA 2014; 20:305-10. [PMID: 24818527 DOI: 10.1016/j.rppneu.2014.03.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 02/04/2014] [Accepted: 03/16/2014] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION Some conflicting results have been published about the relationship between TNF-α-308 gene polymorphism and chronic obstructive pulmonary disease (COPD). The aim of this study was to determine whether TNF-α-308 gene polymorphism was associated with smoking-related COPD and whether it was associated with pulmonary function parameters (PFTs), body mass index (BMI), and prognosis. METHODS We studied the frequencies of TNF-α-308 gene polymorphism in 90 male subjects (60 subjects with COPD and 30 healthy smokers) in a Caucasian population. RESULTS There was no significant difference in the frequency of G/G and G/A gene polymorphisms in the COPD group compared with control subjects (p>0.05). We compared COPD patients as G/A gene polymorphism and G/G gene polymorphism; the PFTs and BMI before and after one year were not statistically significant (p>0.05). Also, the exacerbation and hospitalization data of COPD patients were not significant between these groups. CONCLUSION In conclusion, there was no difference between smoking-related COPD and the control group according to TNF α-308 gene polymorphism in a Caucasian population. In addition, it was shown that important determinants of prognosis of COPD such as FEV1, BMI, COPD exacerbation and hospitalization were not associated with TNF-α-308 gene polymorphism.
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Abstract
Airway mucus is part of the lung's native immune function that traps particulates and microorganisms, enabling their clearance from the lung by ciliary transport and cough. Mucus hypersecretion and chronic productive cough are the features of the chronic bronchitis and chronic obstructive pulmonary disease (COPD). Overproduction and hypersecretion by goblet cells and the decreased elimination of mucus are the primary mechanisms responsible for excessive mucus in chronic bronchitis. Mucus accumulation in COPD patients affects several important outcomes such as lung function, health-related quality of life, COPD exacerbations, hospitalizations, and mortality. Nonpharmacologic options for the treatment of mucus accumulation in COPD are smoking cessation and physical measures used to promote mucus clearance. Pharmacologic therapies include expectorants, mucolytics, methylxanthines, beta-adrenergic receptor agonists, anticholinergics, glucocorticoids, phosphodiesterase-4 inhibitors, antioxidants, and antibiotics.
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Affiliation(s)
- Frederick L Ramos
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Temple University School of Medicine, Philadelphia, PA, USA
| | - Jason S Krahnke
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Temple University School of Medicine, Philadelphia, PA, USA
| | - Victor Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Temple University School of Medicine, Philadelphia, PA, USA
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20
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Abstract
Why only 20% of smokers develop clinically relevant chronic obstructive pulmonary disease (COPD) was a puzzle for many years. Now, epidemiologic studies point clearly toward a large heritable component. The combination of genome-wide association studies and candidate gene analysis is helping to identify those genetic variants responsible for an individual's susceptibility to developing COPD. In this review, the current data implicating specific loci and genes in the pathogenesis of COPD are examined.
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Affiliation(s)
- Stefan J Marciniak
- Division of Respiratory Medicine, Department of Medicine, Addenbrooke's Hospital, Cambridge CB2 0QQ, UK; Cambridge Institute for Medical Research (CIMR), University of Cambridge, Wellcome Trust/MRC Building, Hills Road, Cambridge CB2 0XY, UK.
| | - David A Lomas
- University College London, 1st Floor, Maple House, 149 Tottenham Court Road, London W1T 7NF, UK
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21
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Yang J, Zhou H, Liang B, Xiao J, Su Z, Chen H, Ma C, Li D, Feng Y, Ou X. Association of five genetic variants with chronic obstructive pulmonary disease susceptibility and spirometric phenotypes in a Chinese Han population. Respirology 2013; 19:262-268. [PMID: 24286382 DOI: 10.1111/resp.12212] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 07/20/2013] [Accepted: 09/12/2013] [Indexed: 02/05/2023]
Affiliation(s)
- Jing Yang
- Department of Respiratory Medicine; West China Hospital, Sichuan University; Chengdu Sichuan Province China
| | - Haixia Zhou
- Department of Respiratory Medicine; West China Hospital, Sichuan University; Chengdu Sichuan Province China
| | - Binmiao Liang
- Department of Respiratory Medicine; West China Hospital, Sichuan University; Chengdu Sichuan Province China
| | - Jun Xiao
- Department of Respiratory Medicine; West China Hospital, Sichuan University; Chengdu Sichuan Province China
| | - Zhiguang Su
- Department of Geriatrics; West China Hospital, Sichuan University; Chengdu Sichuan Province China
| | - Hong Chen
- Department of Respiratory Medicine; West China Hospital, Sichuan University; Chengdu Sichuan Province China
| | - Chunlan Ma
- Department of Respiratory Medicine; West China Hospital, Sichuan University; Chengdu Sichuan Province China
| | - Dengxue Li
- Department of Respiratory Medicine; The Second People's Hospital of Hongya County; Meishan Sichuan Province China
| | - Yulin Feng
- Department of Respiratory Medicine; West China Hospital, Sichuan University; Chengdu Sichuan Province China
| | - Xuemei Ou
- Department of Respiratory Medicine; West China Hospital, Sichuan University; Chengdu Sichuan Province China
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22
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Kumar M, Phougat N, Ruhil S, Dhankhar S, Balhara M, Chhillar AK. Genomics of Chronic Obstructive Pulmonary Disease (COPD); Exploring the SNPs of Protease-Antiprotease Pathway. Curr Genomics 2013; 14:204-13. [PMID: 24179443 PMCID: PMC3664470 DOI: 10.2174/1389202911314030006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 04/01/2013] [Accepted: 04/02/2013] [Indexed: 12/31/2022] Open
Abstract
The COPD has been an important respiratory condition that affects people worldwide and its incidence has been alarming. The increasing incidence of this disorder has been attributed to global industrialization and environmental pollution. Although the exposures to environmental pollutants and smoking have been important triggers, the genetic component of individuals has been shown to be important for development and progression of COPD. Recent literature reported that protease-antiprotease imbalance to be important in etiopathogenesis of COPD. The enzymes namely neutrophil elastase and matrix metalloprotienases are considered to be foremost proteolytic molecules released by neutrophils and macrophages during inflammatory events in COPD. Normally, the lungs remain protected from the destructive effect of these two antiproteases by α1-antitrypsin (α1AT) and tissue inhibitors of metalloproteinases (TIMPs) respectively. In this review, we are trying to highlight the work by various research groups in exploring the SNPs of various genes of inflammatory pathways and the protease-antiprotease pathway, which may have some degree of association with COPD.
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Affiliation(s)
- Manish Kumar
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, Haryana, India
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23
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Caramori G, Casolari P, Adcock I. Role of transcription factors in the pathogenesis of asthma and COPD. ACTA ACUST UNITED AC 2013; 20:21-40. [PMID: 23472830 DOI: 10.3109/15419061.2013.775257] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Inflammation is a central feature of asthma and chronic obstructive pulmonary disease (COPD). Despite recent advances in the knowledge of the pathogenesis of asthma and COPD, much more research on the molecular mechanisms of asthma and COPD are needed to aid the logical development of new therapies for these common and important diseases, particularly in COPD where no effective treatments currently exist. In the future the role of the activation/repression of different transcription factors and the genetic regulation of their expression in asthma and COPD may be an increasingly important aspect of research, as this may be one of the critical mechanisms regulating the expression of different clinical phenotypes and their responsiveness to therapy, particularly to anti-inflammatory drugs.
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Affiliation(s)
- Gaetano Caramori
- Centro Interdipartimentale per lo Studio delle Malattie Infiammatorie delle Vie Aeree e Patologie Fumo-correlate CEMICEF; formerly named Centro di Ricerca su Asma e BPCO, Sezione di Malattie dell'Apparato Respiratorio, Università di Ferrara, Ferrara, Italy.
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24
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Fujita Y, Takeshita F, Kuwano K, Ochiya T. RNAi Therapeutic Platforms for Lung Diseases. Pharmaceuticals (Basel) 2013; 6:223-50. [PMID: 24275949 PMCID: PMC3816685 DOI: 10.3390/ph6020223] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Revised: 01/19/2013] [Accepted: 02/01/2013] [Indexed: 12/15/2022] Open
Abstract
RNA interference (RNAi) is rapidly becoming an important method for analyzing gene functions in many eukaryotes and holds promise for the development of therapeutic gene silencing. The induction of RNAi relies on small silencing RNAs, which affect specific messenger RNA (mRNA) degradation. Two types of small RNA molecules, i.e. small interfering RNAs (siRNAs) and microRNAs (miRNAs), are central to RNAi. Drug discovery studies and novel treatments of siRNAs are currently targeting a wide range of diseases, including various viral infections and cancers. Lung diseases in general are attractive targets for siRNA therapeutics because of their lethality and prevalence. In addition, the lung is anatomically accessible to therapeutic agents via the intrapulmonary route. Recently, increasing evidence indicates that miRNAs play an important role in lung abnormalities, such as inflammation and oncogenesis. Therefore, miRNAs are being targeted for therapeutic purposes. In this review, we present strategies for RNAi delivery and discuss the current state-of-the-art RNAi-based therapeutics for various lung diseases.
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Affiliation(s)
- Yu Fujita
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, 104-0045, Japan; E-Mails: (Y.F.); (F.T.)
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, 105-8461, Japan; E-Mail: (K.K.)
| | - Fumitaka Takeshita
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, 104-0045, Japan; E-Mails: (Y.F.); (F.T.)
| | - Kazuyoshi Kuwano
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, 105-8461, Japan; E-Mail: (K.K.)
| | - Takahiro Ochiya
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, 104-0045, Japan; E-Mails: (Y.F.); (F.T.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +81-3-3542-2511; Fax: +81-3-5565-0727
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25
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Athanazio R. Airway disease: similarities and differences between asthma, COPD and bronchiectasis. Clinics (Sao Paulo) 2012; 67:1335-43. [PMID: 23184213 PMCID: PMC3488995 DOI: 10.6061/clinics/2012(11)19] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Accepted: 09/27/2012] [Indexed: 11/18/2022] Open
Abstract
Airway diseases are highly prevalent worldwide; however, the prevalence of these diseases is underestimated. Although these diseases present several common characteristics, they have different clinical outcomes. The differentiation between asthma, chronic obstructive pulmonary disease and bronchiectasis in the early stage of disease is extremely important for the adoption of appropriate therapeutic measures. However, because of the high prevalence of these diseases and the common pathophysiological pathways, some patients with different diseases may present with similar symptoms. The objective of this review is to highlight the similarities and differences between these diseases in terms of the risk factors, pathophysiology, symptoms, diagnosis and treatment.
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Affiliation(s)
- Rodrigo Athanazio
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Heart Institute (InCor), Pulmonary Division, São Paulo, SP, Brazil.
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26
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Howden R, Kleeberger SR. Genetic and Environmental Influences on Gas Exchange. Compr Physiol 2012; 2:2595-614. [DOI: 10.1002/cphy.c110060] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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27
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Abstract
A genetic contribution to develop chronic obstructive pulmonary disease (COPD) is well established. However, the specific genes responsible for enhanced risk or host differences in susceptibility to smoke exposure remain poorly understood. The goal of this review is to provide a comprehensive literature overview on the genetics of COPD, highlight the most promising findings during the last few years, and ultimately provide an updated COPD gene list. Candidate gene studies on COPD and related phenotypes indexed in PubMed before January 5, 2012 are tabulated. An exhaustive list of publications for any given gene was looked for. This well-documented COPD candidate-gene list is expected to serve many purposes for future replication studies and meta-analyses as well as for reanalyzing collected genomic data in the field. In addition, this review summarizes recent genetic loci identified by genome-wide association studies on COPD, lung function, and related complications. Assembling resources, integrative genomic approaches, and large sample sizes of well-phenotyped subjects is part of the path forward to elucidate the genetic basis of this debilitating disease.
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Affiliation(s)
- Yohan Bossé
- Centre de recherche Institut universitaire de cardiologie et de pneumologie de Québec, Quebec, Canada.
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Ezzeldin N, Shalaby A, Saad-Hussein A, Ezzeldin H, El Lebedy D, Farouk H, Kandil DM. Association of TNF-α -308G/A, SP-B 1580 C/T, IL-13 -1055 C/T gene polymorphisms and latent adenoviral infection with chronic obstructive pulmonary disease in an Egyptian population. Arch Med Sci 2012; 8:286-95. [PMID: 22662002 PMCID: PMC3361041 DOI: 10.5114/aoms.2012.28556] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Revised: 02/15/2011] [Accepted: 03/10/2011] [Indexed: 01/14/2023] Open
Abstract
INTRODUCTION Chronic obstructive pulmonary disease (COPD) is a leading cause of disability and death. The most common cause of COPD is smoking. There is evidence suggesting that genetic factors influence COPD susceptibility and variants in several candidate genes have been significantly associated with COPD. In this study, we aimed to investigate the possible association of the TNF-α -308, SPB+1580, IL-13 -1055 gene polymorphisms and latent adenovirus C infection with COPD in an Egyptian population. MATERIAL AND METHODS Our study included 115 subjects (75 smokers with COPD, 25 resistant smokers and 15 non-smokers) who were subjected to spirometric measurements, identification of adenovirus C and genotyping of TNF-α -308G/A, SP-B+1580 C/T and IL-13 -1055 C/T polymorphisms by real-time PCR. RESULTS The adenovirus C gene was identified in all subjects. The distribution of TNF-α genotypes showed no significant differences between different groups. However, homozygous A genotype was associated with a significant decrease in FEV(1), FEV(1)/FVC and FEF25/75% of predicted in COPD (p < 0.05). As regards SP-B genotypes, resistant smokers had a significantly higher homozygous T genotype frequency compared to COPD and non smokers (p = 0.005). Interleukin 13 genotypes showed no significant difference between different groups. There was a significant decrease in FEF25/75% of predicted in T allele carriers in COPD patients (p = 0.001). CONCLUSIONS The COPD is a disease caused by the interaction of combined genes and environmental influences, in the presence of smoking and latent adenovirus C infection, TNF-α -308A, SPB +1580 T and IL-13 -1055 T polymorphisms predispose to the development of COPD.
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Affiliation(s)
- Nada Ezzeldin
- Chest Diseases, National Research Centre, Cairo, Egypt
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Guan J, Liu X, Xie J, Xu X, Luo S, Wang R, Xu Y. Surfactant protein a polymorphism is associated with susceptibility to chronic obstructive pulmonary disease in Chinese Uighur population. ACTA ACUST UNITED AC 2012; 32:186-189. [PMID: 22528218 DOI: 10.1007/s11596-012-0033-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2011] [Indexed: 10/28/2022]
Abstract
This study investigated the correlation between surfactant protein-A (SP-A) polymorphism and the susceptibility of chronic obstructive pulmonary disease (COPD) in Xinjiang Uighurs. Genomic DNA was extracted from peripheral blood of 194 COPD smokers and 201 healthy smokers of Uighur who were hospitalized in or paid a visit to one of the four Xinjiang-based hospitals involved in the study, from March 2009 to December 2010. Single nucleotide polymorphisms (SNPs) were studied at aa62 (CCA/CCG rs1136451) and aa219 (CGG/TGG, rs4253527) in SP-A. Genotypes were determined by using the TaqMan polymerase chain reaction (PCR). Our results showed that genotype frequencies were different between the COPD and normal smokers in aa62 (x (2)=6.852, P=0.033). There were also significant differences in allele genotype frequencies between the COPD and the control and allele G might decrease the risk COPD (x (2)=6.545, P=0.011; OR=0.663; 95% CI: 0.484-0.909). The result suggested that polymorphism of aa62 (CCA/CCG, rs1136451) of SP-A may be associated with the susceptibility to COPD in Xinjiang Uighurs.
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Affiliation(s)
- Jian Guan
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.,Department of Respiratory Medicine, the First Affiliated Hospital of the Medical College, Shihezi University, Shihezi, 832000, China
| | - Xiansheng Liu
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jungang Xie
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xilin Xu
- Department of Respiratory Medicine, the First Affiliated Hospital of the Medical College, Shihezi University, Shihezi, 832000, China
| | - Shuxin Luo
- Department of Respiratory Medicine, the First Affiliated Hospital of the Medical College, Shihezi University, Shihezi, 832000, China
| | - Ran Wang
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yongjian Xu
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Ge JF, Wang TY, Zhao B, Lv XW, Jin Y, Peng L, Yu SC, Li J. Anti-inflammatory Effect of Triterpenoic Acids of Eriobotrya japonica (Thunb.) Lindl. Leaf on Rat Model of Chronic Bronchitis. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2012; 37:309-21. [DOI: 10.1142/s0192415x09006862] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This study was designed to investigate the anti-inflammatory effect of Triterpenoic Acids from Eriobotrya japonica (Thunb.) Lindl. (TAL) on chronic bronchitis (CB) in rats. CB model was established by combination of Bacillus Calmette-Guerin (BCG, 5 mg/kg, injected through the caudal vein) and lipopolysaccharide (LPS, 1 g/L, injected through endotracheal intubation). Rats with CB model were treated with TAL (50, 150 and 450 mg/kg) for 3 weeks. The leukocytes in bronchoalveolar lavage fluid (BALF) were counted after Wright staining, the levels of cytokine tumor necrosis factor alpha (TNF-α), interleukin (IL)-8, and IL-10 in the supernatants of lung homogenate were assessed by enzyme-linked immunosorbent assay (ELISA), and the protein expression of nuclear factor kappaB (NF-κB) and intercellular adhesion molecule-1 (ICAM-1) on bronchial epithelium were tested by immunohistochemical staining. As compared to the normal and sham groups, the total number of leukocyte, the differential counts of neutrophils and alveolar macrophage (AM) in BALF, the levels of TNF-α and IL-8 in the supernatants of lung homogenate, and the expression of NF-κB and ICAM-1 on bronchial epithelium in CB rats were significantly increased, while the level of IL-10 was decreased. TAL (50, 150 and 450 mg/kg) attenuated these alterations in model CB rats, which indicates that TAL has anti-inflammatory effect in the rats with CB.
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Affiliation(s)
- Jin-Fang Ge
- School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui, China
| | - Ting-Yu Wang
- School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui, China
| | - Bin Zhao
- School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui, China
| | - Xiong-Wen Lv
- School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui, China
| | - Yong Jin
- School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui, China
| | - Lei Peng
- School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui, China
| | - Shi-Chun Yu
- Anhui An-tai Medical Company, Hefei 230032, Anhui, China
| | - Jun Li
- School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui, China
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Chen CZ, Wang RH, Lee CH, Lin CC, Chang HY, Hsiue TR. Polymorphism of microsomal epoxide hydrolase is associated with chronic obstructive pulmonary disease and bronchodilator response. J Formos Med Assoc 2011; 110:685-9. [DOI: 10.1016/j.jfma.2011.09.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2009] [Revised: 05/14/2010] [Accepted: 08/03/2010] [Indexed: 10/16/2022] Open
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Córdoba-Lanús E, Baz-Dávila R, de-Torres JP, Rodríguez-Pérez MC, Maca-Meyer N, Varo N, Medina-Coello C, Aguirre-Jaime A, Casanova C. TNFA-863 polymorphism is associated with a reduced risk of chronic obstructive pulmonary disease: a replication study. BMC MEDICAL GENETICS 2011; 12:132. [PMID: 21985478 PMCID: PMC3209447 DOI: 10.1186/1471-2350-12-132] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2011] [Accepted: 10/10/2011] [Indexed: 12/02/2022]
Affiliation(s)
- Elizabeth Córdoba-Lanús
- Research Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain.
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Zhang S, Wang C, Xi B, Li X. Association between the tumour necrosis factor-α-308G/A polymorphism and chronic obstructive pulmonary disease: an update. Respirology 2011; 16:107-15. [PMID: 20946339 DOI: 10.1111/j.1440-1843.2010.01879.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND OBJECTIVE Previous studies have suggested that the -308A allele in the tumour necrosis factor-α (TNF-α) gene promoter (rs1800629) may be a potential risk factor for COPD. However, more recent findings have been inconsistent. In the present study, a meta-analysis was performed to assess the association between the TNF-α-308G/A single nucleotide polymorphism (SNP) and the risk of COPD. METHODS Published studies were retrieved from PubMed, EMBASE and other databases. All studies assessing the association between the TNF-α-308G/A SNP and the risk of COPD were assessed. Pooled ORs with 95% CIs were calculated. RESULTS In the 36 studies that met the inclusion criteria, 4975 patients and 6518 control subjects had been genotyped. The overall results showed that the association between the TNF-α-308G/A SNP and the risk of COPD was statistically significant for Asians (OR = 2.36, 95% CI: 1.84-3.02, P < 0.0001) but not for Caucasians (OR = 1.07, 95% CI: 0.91-1.25, P = 0.438). As smoking is one of the most important risk factors for COPD, a second meta-analysis that included only smokers (3018 patients and 2749 control subjects) was performed. This analysis confirmed that the association between the TNF-α-308G/A SNP and COPD was statistically significant for Asians (OR = 1.72, 95% CI: 1.14-2.61, P = 0.011) but not for Caucasians (OR = 1.16, 95% CI: 0.86-1.56, P = 0.33). CONCLUSIONS This meta-analysis suggests that the TNF-α-308A genotype is associated with an increased risk of COPD in Asian but not Caucasian populations. Further studies are necessary to evaluate the relationship between TNF-α polymorphisms and the risk of COPD.
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Affiliation(s)
- Shihua Zhang
- College of Bioinformatics Science and Technology, Harbin Medical University, China
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Association of IL1A, IL1B, ILRN, IL6, IL10 and TNF-α polymorphisms with risk and clinical course of multiple sclerosis in a Polish population. J Neuroimmunol 2011; 236:87-92. [DOI: 10.1016/j.jneuroim.2011.04.014] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Revised: 04/02/2011] [Accepted: 04/28/2011] [Indexed: 12/11/2022]
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Jiffri EH, Elhawary NA. The impact of common tumor necrosis factor haplotypes on the development of asthma in children: an Egyptian model. Genet Test Mol Biomarkers 2011; 15:293-9. [PMID: 21271873 DOI: 10.1089/gtmb.2010.0157] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Conflicting results have arisen among different ethnic populations with regard to the ability of tumor necrosis factor (TNF) to control the development of bronchial asthma. We examined common TNF polymorphisms (TNFA -1031C>T, TNFA -308G>A, and TNFB +252A>G) to develop a model of the associations between these genetic markers and the development of the disease in Egypt. Amplified DNA from buccal mucosa was genotyped for 240 children using polymerase chain reaction-restriction fragment length polymorphism. Skin prick test, total serum immunoglobulin E levels, and assessment of pulmonary functions were investigated. The onset age for one-third of the asthma patients in our study was between 7 and 10 years. The TNFA -1031C>T and TNFA -308G>A polymorphisms were strongly associated with the risk of asthma (p = 0.007, and p = 0.000, respectively), but the TNFB +252A>G polymorphism was not (p = 0.6). We detected a significant linkage between the +252A>G and -1031C>T, and another between the +252A>G and the -308G>A (p < 0.0001 for both). The -1031C>T and -308G>A polymorphisms were not linked (p = 0.14). The -308A/A genotype was absent, and the -308A allele was expressed only in patients with -308G/A heterozygosity (13%). All but the +252G/A genotype were also strongly associated with the severity of disease. Environmental factors, as genetic variations, clearly influence susceptibility, the onset, progression, and severity of bronchial asthma. More information is needed to develop genetic models of susceptibility for different ethnic populations.
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Affiliation(s)
- Essam H Jiffri
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdul-Aziz University, Jeddah, Saudi Arabia
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36
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Chiang YY, Lin HW. Association between psoriasis and chronic obstructive pulmonary disease: a population-based study in Taiwan. J Eur Acad Dermatol Venereol 2011; 26:59-65. [DOI: 10.1111/j.1468-3083.2011.04009.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Helmig S, Aliahmadi N, Stephan P, Döhrel J, Schneider J. TNF-α −308 genotypes are associated with TNF-α and TGF-β1 mRNA expression in blood leucocytes of humans. Cytokine 2011; 53:306-10. [DOI: 10.1016/j.cyto.2010.11.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2010] [Revised: 11/04/2010] [Accepted: 11/19/2010] [Indexed: 11/17/2022]
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Shen N, Gong T, Wang JD, Meng FL, Qiao L, Yang RL, Xue B, Pan FY, Zhou XJ, Chen HQ, Ning W, Li CJ. Cigarette smoke-induced pulmonary inflammatory responses are mediated by EGR-1/GGPPS/MAPK signaling. THE AMERICAN JOURNAL OF PATHOLOGY 2011; 178:110-8. [PMID: 21224049 PMCID: PMC3069843 DOI: 10.1016/j.ajpath.2010.11.016] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2009] [Revised: 08/28/2010] [Accepted: 09/23/2010] [Indexed: 11/24/2022]
Abstract
Early growth response 1 (EGR-1) contributes to the development of chronic obstructive pulmonary disease in the lungs of smokers by mediating pulmonary inflammatory responses, but the direct downstream genes of EGR-1 that regulate this process remain unknown. We show that a new EGR-1 target gene, geranylgeranyl diphosphate synthase (GGPPS), which controls protein prenylation, can regulate the proinflammatory function of EGR-1 by activating MAPK signaling. When C57BL/6 mice were exposed to cigarette smoke, EGR-1 and GGPPS levels increased in their lungs, and the inflammatory responses were augmented, whereas these effects could be reversed by the down-regulation of EGR-1 transcription activity. The accumulation of EGR-1 and GGPPS was induced by MAPK/ERK pathway activation when Beas-2B human bronchial epithelial cells were exposed to cigarette smoke extract (CSE). Further examination showed that EGR-1 in turn regulated Erk1/2 activity because inhibition of EGR-1 transcription activity decreased CSE-induced Erk1/2 phosphorylation. Furthermore, EGR-1-promoted Erk1/2 activation was dependent on GGPPS transcription. Knockdown of GGPPS expression with small-interfering RNA abolished the EGR-1-activated Erk1/2 activity. Both EGR-1 transcription inhibition and GGPPS expression knockdown decreased the inflammatory response induced by CSE in Beas-2B cells. Our results reveal a new EGR-1/GGPPS/MAPK signaling pathway that controls cigarette smoke-induced pulmonary inflammation, and this may shed light on our understanding of the mechanism of cigarette smoke-related pulmonary diseases such as chronic obstructive pulmonary disease.
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Affiliation(s)
- Ning Shen
- Model Animal Research Center and the School of Medicine, MOE Key Laboratory of Model Animal for Disease Studies, Nanjing University of Nanjing, Nanjing, China
| | - Tao Gong
- The Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Jian-Dong Wang
- Affiliated Jinling Hospital of Medical School of Nanjing University, Nanjing, China
| | - Fan-Li Meng
- The Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Long Qiao
- The Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Run-Lin Yang
- The Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Bin Xue
- Model Animal Research Center and the School of Medicine, MOE Key Laboratory of Model Animal for Disease Studies, Nanjing University of Nanjing, Nanjing, China
| | - Fei-Yan Pan
- The Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Xiao-Jun Zhou
- Affiliated Jinling Hospital of Medical School of Nanjing University, Nanjing, China
| | - Hua-Qun Chen
- The Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Wen Ning
- Model Animal Research Center and the School of Medicine, MOE Key Laboratory of Model Animal for Disease Studies, Nanjing University of Nanjing, Nanjing, China
| | - Chao-Jun Li
- Model Animal Research Center and the School of Medicine, MOE Key Laboratory of Model Animal for Disease Studies, Nanjing University of Nanjing, Nanjing, China
- The Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
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Pollution atmosphérique, facteur de risque des BPCO ? ARCH MAL PROF ENVIRO 2010. [DOI: 10.1016/j.admp.2010.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Helmig S, Aliahmadi N, Schneider J. Tumour necrosis factor-alpha gene polymorphisms in asbestos-induced diseases. Biomarkers 2010; 15:400-9. [PMID: 20486865 DOI: 10.3109/1354750x.2010.481365] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Tumour necrosis factor (TNF)-alpha influences the pathogenesis of lung fibrosis and carcinogenesis in normal cells. Polymorphisms of this gene have been suggested to be associated with susceptibility to lung diseases. METHODS Association studies were performed in German subjects, using control subjects (n = 177), pulmonary fibrosis patients (n = 612) and bronchial carcinoma patients (n = 374). RESULTS Compared with a healthy (control) group, a significant result could be obtained for the asbestosis (patient) group (crude odds ratio (OR(crude)) = 1.57; 95% confidence interval (CI) 1.05-2.36; p = 0.03), especially with severe lung asbestosis (OR(crude) = 4.15; 95% CI 1.06-16.16; p = 0.04). A significant association was revealed when comparing asbestosis patients (OR(crude) = 4.08; 95% CI 1.53-10.54; p = 0.004 and OR(adjusted) = 3.89; 95% CI 1.49-10.17; p = 0.006) with asbestos-induced lung cancer patients. CONCLUSION The results confirm the hypothesis that TNF-alpha polymorphisms are associated with asbestos-induced fibrotic or malignant lung diseases in Germans.
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Affiliation(s)
- Simone Helmig
- Institut und Poliklinik für Arbeits- und Sozialmedizin, Justus-Liebig-Universität, Aulweg 129, D-35392 Giessen, Germany.
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Gromadzka G, Członkowska A. Influence of IL-1RN intron 2 variable number of tandem repeats (VNTR) polymorphism on the age at onset of neuropsychiatric symptoms in Wilson's disease. Int J Neurosci 2010; 121:8-15. [PMID: 20942594 DOI: 10.3109/00207454.2010.523131] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
ABSTRACT Wilson's disease (WND) is an autosomal recessive copper storage disease characterized with diverse clinical pictures with the hepatic and/or neuropsychiatric symptoms manifesting at variable age. On the basis of the existing knowledge on possible copper-proinflammatory cytokines interactions, we hypothesized that in WND hereditary, over-/underexpression of PC or anti-inflammatory cytokines may have an impact on the course of the disease. We analyzed the clinical manifestations of WND in relationship to polymorphisms within genes for interleukin-1 receptor antagonist (IL1RN intron 2 VNTR polymorphism), interleukin-1α (IL1A G4845T), IL-1β (IL1B C-511T), IL-6 (IL6 G-174C), and tumor necrosis factor (TNF G-308A) in a total sample of 332 patients. The IL1B C-511T and IL1RN VNTR polymorphisms had an impact on copper metabolism parameters. None of the studied gene polymorphisms had effect on the mode of WND manifestation (neuropsychiatric vs. hepatic). Carriership of the IL1RN *2 allele was related to earlier WND onset, especially among patients with neuropsychiatric form of the disease (median 27.5 vs. 32.0 years, p = .003). Because of the crucial modulatory role of IL1ra on IL-1α and IL-1β proinflammatory functions, IL1ra and its interactions may play a role in the pathogenesis of the neurodegenerative process in WND; our results need to be replicated, possibly in different ethnic groups.
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Affiliation(s)
- Grazyna Gromadzka
- Institute of Psychiatry and Neurology, Second Department of Neurology, Warsaw, Poland
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Yang T, Ying B, Song X, Zhang S, Fan H, Xu D, Wang T, Liu D, Wen F. Single-nucleotide polymorphisms in SMAD3 are associated with chronic obstructive pulmonary disease. Exp Biol Med (Maywood) 2010; 235:599-605. [PMID: 20463300 DOI: 10.1258/ebm.2010.009268] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The aim of this study was to determine the frequencies of single-nucleotide polymorphisms (SNPs) in the Smad3 gene in the Chinese population and their possible association with chronic obstructive pulmonary disease (COPD). The frequency distribution of nine SNPs in the introns of the Smad3 gene was determined in both the COPD patients and control groups by the TaqMan polymerase chain reaction method using a minor groove binder probe. The genotype distribution of the rs28683050 polymorphism in control subjects was as follows: CC, 67.6%; CT, 27.0% and TT, 5.4%; and in COPD patients was as follows: CC, 47.0%; CT, 38.8% and TT, 14.2%. Therefore, a significant difference in allelic and genotypic frequencies between the COPD patients and control subjects is observed. Their genotypic distribution was not significantly different from that predicted by Hardy–Weinberg's equilibrium. The frequency of the TT genotype in the COPD patients was significantly higher than that in controls (14.2% versus 5.4%, odds ratio [OR] = 3.762, 95% confidence interval: 1.650–8.581, P = 0.002), and the frequency of the T allele in the COPD patients was significantly higher than that in controls (81.1% versus 66.4%, OR = 1.774, 95% confidence interval: 1.354–2.324, P = 0.001). These data show that the rs28683050 polymorphism of the Smad3 gene may be associated with COPD.
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Affiliation(s)
- Ting Yang
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy
- Department of Respiratory Medicine
| | | | | | - Sizhong Zhang
- Department of Medical Genetics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, People's Republic of China
| | - Hong Fan
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy
- Department of Respiratory Medicine
- Department of Laboratory Medicine
| | - Dan Xu
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy
- Department of Respiratory Medicine
| | - Tao Wang
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy
- Department of Respiratory Medicine
| | - Daishun Liu
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy
- Department of Respiratory Medicine
| | - Fuqiang Wen
- Division of Pulmonary Disease, State Key Laboratory of Biotherapy
- Department of Respiratory Medicine
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Zhan P, Wang J, Wei SZ, Qian Q, Qiu LX, Yu LK, Song Y. TNF-308 gene polymorphism is associated with COPD risk among Asians: meta-analysis of data for 6,118 subjects. Mol Biol Rep 2010; 38:219-27. [PMID: 20364405 DOI: 10.1007/s11033-010-0098-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2009] [Accepted: 03/16/2010] [Indexed: 11/26/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a complex polygenic disease in which gene-environment interactions play a critical role in disease onset and progression. The gene encoding tumor necrosis factor (TNF) is one of several candidate loci for the pathogenesis of COPD and is highly polymorphic. A number of studies have investigated the association between the TNF-308 polymorphisms and COPD risk in different populations, and resulted in inconsistent results. A systematic review and meta-analysis of the published studies were performed to gain a clearer understanding of this association. The PubMed, Embase, Web of Science, and CNKI databases were searched for case-control studies published from 1966 to April 2009. Data were extracted and pooled odds ratios (OR) with 95% confidence intervals (CI) were calculated. Twenty-four eligible studies, comprising 2,380 COPD cases and 3,738 controls, were included in the meta-analysis. The pooled result showed that the TNF-308 polymorphisms were significantly associated with an increased risk of COPD (OR=1.335, 95% CI: 1.172-1.522, for allele A carriers versus G/G; OR=1.330, 95% CI=1.174-1.505, for allele A versus allele G). Subgroup analysis supported the results in the Asian populations, but not in the Caucasian populations. When the analysis was limited to only those studies in which the COPD cases and controls were smokers/ex-smokers, the pooled results supported the conclusion. This meta-analysis suggested that the TNF-308 A allele is a more significant risk factor for developing COPD among Asian populations, but not among Caucasians.
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Affiliation(s)
- Ping Zhan
- First Department of Respiratory Medicine, Nanjing Chest Hospital, Nanjing University School of Medicine, 215 Guangzhou Road, Nanjing, 210029, China.
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Allain YM, Roche N, Huchon G. [Atmospheric air pollution: a risk factor for COPD?]. Rev Mal Respir 2010; 27:349-63. [PMID: 20403545 DOI: 10.1016/j.rmr.2010.02.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2008] [Accepted: 11/24/2009] [Indexed: 10/19/2022]
Abstract
Tobacco smoking is the leading cause of COPD worldwide but other risk factors have been recognized. Air pollution is one of them, but its exact role in the development of COPD is hard to demonstrate. Its physiological effects on lung function have only been studied since the nineties by long and tedious cohort studies. Difficulties arise from the heterogeneity of air pollution (gas and particles); thus, its respiratory effects have to be examined for every component separately, and in different populations. It is also necessary to analyse the effects of atmospheric pollution in the short and the long term, considering both its physiological, clinical and toxicological effects, from childhood to adulthood. These factors make it difficult to obtain statistically significant results. Nevertheless, most studies seem to point to a role of air pollution in the development of COPD via oxydative stress but further studies are needed to confirm the exact effect of each component of air pollution on the respiratory tract. These studies could lead to improved public health policies and results are awaited that would identify at-risk populations, decide appropriate preventive measures and propose documented thresholds in pollution exposure... thereby limiting the spread of COPD.
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Affiliation(s)
- Y-M Allain
- Service de pneumologie et réanimation, Hôtel-Dieu, université Paris Descartes, 1, place du Parvis de Notre-Dame, 75004 Paris, France
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Chen YC, Liu SF, Chin CH, Wu CC, Chen CJ, Chang HW, Wang YH, Chung YH, Chao TY, Lin MC. Association of tumor necrosis factor-alpha-863C/A gene polymorphism with chronic obstructive pulmonary disease. Lung 2010; 188:339-47. [PMID: 20352242 DOI: 10.1007/s00408-010-9236-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2009] [Accepted: 03/08/2010] [Indexed: 11/28/2022]
Abstract
The aim of this study was to investigate genetic effects on the pathogenesis of chronic obstructive pulmonary disease (COPD). The study was conducted as a prospective case-control study in a medical center in southern Taiwan. The patient group consisted of 145 male patients with smoking-related COPD and a control group of 139 resistant smokers from July 2004 to September 2009. We compared allele and genotype frequencies of three tag single nucleotide polymorphisms (SNP) of the TNF-alpha gene promoter region at -308, -863, and -1031 in all subjects. We also analyzed the influence of each genetic variant on pulmonary function parameters, body mass index (BMI), serum TNF-alpha levels, and outcomes among heavy smokers with or without COPD. COPD patients had a significantly lower A allele frequency (9.7 vs. 15.1%, OR = 0.6, p = 0.048, false discovery rate q = 0.144) and a significantly lower A carrier genotype frequency (19.3 vs. 30.2%, OR = 0.52, p = 0.042, q = 0.135) than resistant smokers. The -863 CA genotype was associated with a better FEV(1)/FVC ratio (79 vs. 71.5%, p = 0.034), and higher BMI (24.9 vs. 23.6 kg/m(2), p = 0.048). In addition, COPD patients with the -1031 C carrier genotype had higher serum TNF-alpha levels (20.9 vs. 16.2 pg/ml, p = 0.01). BMI (hazard ratio = 0.84, 95% CI = 0.74-0.96, p = 0.008) was the only independent predictor for mortality. The TNF-alpha -863 A allele may confer a degree of resistance to the susceptibility to and muscle wasting of COPD among heavy smokers.
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Affiliation(s)
- Yung-Che Chen
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan, ROC.
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Murugan V, Peck MJ. Signal transduction pathways linking the activation of alveolar macrophages with the recruitment of neutrophils to lungs in chronic obstructive pulmonary disease. Exp Lung Res 2010; 35:439-85. [PMID: 19842832 DOI: 10.1080/01902140902759290] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a major and increasing global health problem. It is predicted by the World Health Organization to become the third most common cause of death and the fifth most common cause of disability in the world by 2020. COPD is a complex inflammatory disease involving several types of inflammatory cells and multiple inflammatory mediators. Although abnormal numbers of inflammatory cells such as macrophages, dendritic cells, neutrophils, and T lymphocytes have been documented in COPD, the relationship between these cell types and the sequence of their appearance and persistence is largely unknown. Alveolar macrophages have been identified as one of the major cell types that plays a key role in orchestrating the inflammatory events associated with the pathophysiology of COPD. One of the major functions of macrophages is the secretion of chemotactic factors and this function is markedly increased on exposure to cigarette smoke (CS). This enhanced release of chemoattractants results in increased lung neutrophil infiltration, which is thought to be a key event in the development of COPD. The molecular basis for this amplified inflammatory response is not very clear, but it could be due to an alteration in signal transduction pathways within the macrophage. Based on existing literature, an attempt has been made to create a comprehensive review of the signal transduction pathways that link the activation of macrophages with the increased recruitment of neutrophils into the airways. Some of the major stimuli that activate macrophages and cause them to secrete chemotactic factors have been identified as CS, wood smoke, ozone, bacterial endotoxin, and proinflammatory cytokines such as interleukin (IL)-1beta and tumor necrosis factor (TNF)-alpha. These stimuli seem to activate mainly redox-sensitive transcription factors such as nuclear factor (NF)-kappa B and activator protein (AP)-1, both of which play a major role in the synthesis and secretion of chemotactic factors such as IL-8 and leukotriene B(4) (LTB(4)). The pathways involved in the synthesis and secretion of other factors such as macrophage chemotactic protein-1 (MCP-1) and growth-related oncogene-alpha (Gro-alpha) have also been reviewed.
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Association between tumor necrosis factor-α promoter −308 A/G polymorphism and susceptibility to sepsis and sepsis mortality: A systematic review and meta-analysis. Crit Care Med 2010; 38:276-82. [DOI: 10.1097/ccm.0b013e3181b42af0] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ates I, Yucesoy B, Yucel A, Suzen SH, Karakas Y, Karakaya A. Possible effect of gene polymorphisms on the release of TNFα and IL1 cytokines in coal workers' pneumoconiosis. ACTA ACUST UNITED AC 2009; 63:175-9. [PMID: 20005085 DOI: 10.1016/j.etp.2009.11.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2009] [Revised: 11/02/2009] [Accepted: 11/16/2009] [Indexed: 10/20/2022]
Abstract
It has been shown that coal dust exposure stimulates inflammatory response leading to increased release of cytokines from monocytes such as TNF-alpha and IL1. These released cytokines play the key role in the pathogenesis of pneumoconiosis including coal workers' pneumoconiosis. In this study, we investigated TNFA, IL1A, IL1B and IL1RA genes variations on basal, lipopolysaccharide and coal dust-induced cytokine release from blood monocytes of homozygous allele and minor variant allele carriers in Turkish coal workers and CWP patients. According to the genotyping results, TNFA -238 gene polymorphism was found as a risk factor in CWP development (OR=3.79) and to in vitro results; release of both TNF-alpha and IL1 cytokines from the monocytes in CWP patients was significantly increased compared to the healthy workers. Also, LPS and coal dust stimulated release of TNF-alpha, which was significantly higher in allele 2 carriers compared to subjects carrying allele 1 in both the groups. These data suggest that the coal dust-induced release of TNF-alpha from monocytes may be a useful biomarker of CWP.
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Affiliation(s)
- Ilker Ates
- Department of Toxicology, Faculty of Pharmacy, Ankara University, Tandogan, Ankara 06100, Turkey.
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Wood AM, Tan SL, Stockley RA. Chronic obstructive pulmonary disease: towards pharmacogenetics. Genome Med 2009; 1:112. [PMID: 19951401 PMCID: PMC2808747 DOI: 10.1186/gm112] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a common problem worldwide, and it is recognized that the term encompasses overlapping sub-phenotypes of disease. The development of a sub-phenotype may be determined in part by an individual's genetics, which in turn may determine response to treatment. A growing understanding of the genetic factors that predispose to COPD and its sub-phenotypes and the pathophysiology of the condition is now leading to the suggestion of individualized therapy based on the patients' clinical phenotype and genotype. Pharmacogenetics is the study of variations in treatment response according to genotype and is perhaps the next direction for genetic research in COPD. Here, we consider how knowledge of the pathophysiology and genetic risk factors for COPD may inform future management strategies for affected individuals.
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Affiliation(s)
- Alice M Wood
- University of Birmingham, Birmingham, B15 2TT, UK
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Castaldi PJ, Cho MH, Cohn M, Langerman F, Moran S, Tarragona N, Moukhachen H, Venugopal R, Hasimja D, Kao E, Wallace B, Hersh CP, Bagade S, Bertram L, Silverman EK, Trikalinos TA. The COPD genetic association compendium: a comprehensive online database of COPD genetic associations. Hum Mol Genet 2009; 19:526-34. [PMID: 19933216 DOI: 10.1093/hmg/ddp519] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a major cause of morbidity and mortality worldwide. COPD is thought to arise from the interaction of environmental exposures and genetic susceptibility, and major research efforts are underway to identify genetic determinants of COPD susceptibility. With the exception of SERPINA1, genetic associations with COPD identified by candidate gene studies have been inconsistently replicated, and this literature is difficult to interpret. We conducted a systematic review and meta-analysis of all population-based, case-control candidate gene COPD studies indexed in PubMed before 16 July 2008. We stored our findings in an online database, which serves as an up-to-date compendium of COPD genetic associations and cumulative meta-analysis estimates. On the basis of our systematic review, the vast majority of COPD candidate gene era studies are underpowered to detect genetic effect odds ratios of 1.2-1.5. We identified 27 genetic variants with adequate data for quantitative meta-analysis. Of these variants, four were significantly associated with COPD susceptibility in random effects meta-analysis, the GSTM1 null variant (OR 1.45, CI 1.09-1.92), rs1800470 in TGFB1 (0.73, CI 0.64-0.83), rs1800629 in TNF (OR 1.19, CI 1.01-1.40) and rs1799896 in SOD3 (OR 1.97, CI 1.24-3.13). In summary, most COPD candidate gene era studies are underpowered to detect moderate-sized genetic effects. Quantitative meta-analysis identified four variants in GSTM1, TGFB1, TNF and SOD3 that show statistically significant evidence of association with COPD susceptibility.
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Affiliation(s)
- Peter J Castaldi
- Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, 800 Washington Street, Boston, MA 02111, USA
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