401
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Titz B, Luettich K, Leroy P, Boue S, Vuillaume G, Vihervaara T, Ekroos K, Martin F, Peitsch MC, Hoeng J. Alterations in Serum Polyunsaturated Fatty Acids and Eicosanoids in Patients with Mild to Moderate Chronic Obstructive Pulmonary Disease (COPD). Int J Mol Sci 2016; 17:E1583. [PMID: 27657052 PMCID: PMC5037848 DOI: 10.3390/ijms17091583] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 09/06/2016] [Accepted: 09/13/2016] [Indexed: 01/08/2023] Open
Abstract
Smoking is a major risk factor for several diseases including chronic obstructive pulmonary disease (COPD). To better understand the systemic effects of cigarette smoke exposure and mild to moderate COPD-and to support future biomarker development-we profiled the serum lipidomes of healthy smokers, smokers with mild to moderate COPD (GOLD stages 1 and 2), former smokers, and never-smokers (n = 40 per group) (ClinicalTrials.gov registration: NCT01780298). Serum lipidome profiling was conducted with untargeted and targeted mass spectrometry-based lipidomics. Guided by weighted lipid co-expression network analysis, we identified three main trends comparing smokers, especially those with COPD, with non-smokers: a general increase in glycero(phospho)lipids, including triglycerols; changes in fatty acid desaturation (decrease in ω-3 polyunsaturated fatty acids, and an increase in monounsaturated fatty acids); and an imbalance in eicosanoids (increase in 11,12- and 14,15-DHETs (dihydroxyeicosatrienoic acids), and a decrease in 9- and 13-HODEs (hydroxyoctadecadienoic acids)). The lipidome profiles supported classification of study subjects as smokers or non-smokers, but were not sufficient to distinguish between smokers with and without COPD. Overall, our study yielded further insights into the complex interplay between smoke exposure, lung disease, and systemic alterations in serum lipid profiles.
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Affiliation(s)
- Bjoern Titz
- Philip Morris International Research and Development, Philip Morris Products S.A. (Part of Philip Morris International Group of Companies), Quai Jeanrenaud 5, 2000 Neuchatel, Switzerland.
| | - Karsta Luettich
- Philip Morris International Research and Development, Philip Morris Products S.A. (Part of Philip Morris International Group of Companies), Quai Jeanrenaud 5, 2000 Neuchatel, Switzerland.
| | - Patrice Leroy
- Philip Morris International Research and Development, Philip Morris Products S.A. (Part of Philip Morris International Group of Companies), Quai Jeanrenaud 5, 2000 Neuchatel, Switzerland.
| | - Stephanie Boue
- Philip Morris International Research and Development, Philip Morris Products S.A. (Part of Philip Morris International Group of Companies), Quai Jeanrenaud 5, 2000 Neuchatel, Switzerland.
| | - Gregory Vuillaume
- Philip Morris International Research and Development, Philip Morris Products S.A. (Part of Philip Morris International Group of Companies), Quai Jeanrenaud 5, 2000 Neuchatel, Switzerland.
| | | | - Kim Ekroos
- Zora Biosciences Oy, 02150 Espoo, Finland.
| | - Florian Martin
- Philip Morris International Research and Development, Philip Morris Products S.A. (Part of Philip Morris International Group of Companies), Quai Jeanrenaud 5, 2000 Neuchatel, Switzerland.
| | - Manuel C Peitsch
- Philip Morris International Research and Development, Philip Morris Products S.A. (Part of Philip Morris International Group of Companies), Quai Jeanrenaud 5, 2000 Neuchatel, Switzerland.
| | - Julia Hoeng
- Philip Morris International Research and Development, Philip Morris Products S.A. (Part of Philip Morris International Group of Companies), Quai Jeanrenaud 5, 2000 Neuchatel, Switzerland.
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402
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Protein oxidation and degradation caused by particulate matter. Sci Rep 2016; 6:33727. [PMID: 27644844 PMCID: PMC5028717 DOI: 10.1038/srep33727] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 09/02/2016] [Indexed: 01/10/2023] Open
Abstract
Particulate matter (PM) modulates the expression of autophagy; however, the role of selective autophagy by PM remains unclear. The objective of this study was to determine the underlying mechanisms in protein oxidation and degradation caused by PM. Human epithelial A549 cells were exposed to diesel exhaust particles (DEPs), urban dust (UD), and carbon black (CB; control particles). Cell survival and proliferation were significantly reduced by DEPs and UD in A549 cells. First, benzo(a)pyrene diolepoxide (BPDE) protein adduct was caused by DEPs at 150 μg/ml. Methionine oxidation (MetO) of human albumin proteins was induced by DEPs, UD, and CB; however, the protein repair mechanism that converts MetO back to methionine by methionine sulfoxide reductases A (MSRA) and B3 (MSRB3) was activated by DEPs and inhibited by UD, suggesting that oxidized protein was accumulating in cells. As to the degradation of oxidized proteins, proteasome and autophagy activation was induced by CB with ubiquitin accumulation, whereas proteasome and autophagy activation was induced by DEPs without ubiquitin accumulation. The results suggest that CB-induced protein degradation may be via an ubiquitin-dependent autophagy pathway, whereas DEP-induced protein degradation may be via an ubiquitin-independent autophagy pathway. A distinct proteotoxic effect may depend on the physicochemistry of PM.
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403
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Montaño M, Pérez-Ramos J, Esquivel A, Rivera-Rosales R, González-Avila G, Becerril C, Checa M, Ramos C. Obesity decreases the oxidant stress induced by tobacco smoke in a rat model. Toxicol Mech Methods 2016; 26:544-553. [PMID: 27470987 DOI: 10.1080/15376516.2016.1211208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Accepted: 07/07/2016] [Indexed: 10/21/2022]
Abstract
Obesity and emphysema are associated with low-grade systemic inflammation and oxidant stress. Assuming that the oxidant stress induced by emphysema would be decreased by obesity, we analyzed the oxidant/antioxidant state in a rat model combining both diseases simultaneously. Obesity was induced using sucrose, while emphysema by exposure to tobacco smoke. End-points evaluated were: body weight, abdominal fat, plasma dyslipidemia and malondialdehyde (MDA), insulin and glucose AUC, activities of Mn-superoxide dismutase (Mn-SOD), glutathione reductase (GR), glutathione transferase (GST) and glutathione peroxidase (GPx); lung MnSOD and 3-nitrotyrosine (3-NT) immunostaining, and expression of αV and β6 integrin subunits. In rats with obesity, the body weight, abdominal fat, plasma triglyceride levels, glucose AUC, insulin levels, GST activity, and αV and β6 integrin expressions were amplified. The rats with emphysema had lower values of body weight, abdominal fat, plasma insulin, triglycerides and glucose AUC but higher values of plasma MDA, GPx activity, and the lung expression of the αV and β6 integrins. The combination of obesity and emphysema compared to either condition alone led to diminished body weight, abdominal fat, plasma insulin MDA levels, GPx and GST activities, and αV and β6 integrin expressions; these parameters were all previously increased by obesity. Immunostaining for MnSOD augmented in all experimental groups, but the staining for 3-NT only increased in rats treated with tobacco alone or combined with sucrose. Results showed that obesity reduces oxidant stress and integrin expression, increasing antioxidant enzyme activities; these changes seem to partly contribute to a protective mechanism of obesity against emphysema development.
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Affiliation(s)
- Martha Montaño
- a Departamento de Investigación en Fibrosis Pulmonar , Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas , México , Mexico
| | - J Pérez-Ramos
- b Departamento de Sistemas Biológicos , Universidad Autónoma Metropolitana-Xochimilco , México , Mexico
| | - A Esquivel
- b Departamento de Sistemas Biológicos , Universidad Autónoma Metropolitana-Xochimilco , México , Mexico
| | - R Rivera-Rosales
- c Departamento de Patología , Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas , México , Mexico
| | - G González-Avila
- d Departamento de Enfermedades Crónico Degenerativas , Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas (INER) , México , Mexico
| | - C Becerril
- a Departamento de Investigación en Fibrosis Pulmonar , Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas , México , Mexico
| | - M Checa
- a Departamento de Investigación en Fibrosis Pulmonar , Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas , México , Mexico
| | - C Ramos
- a Departamento de Investigación en Fibrosis Pulmonar , Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas , México , Mexico
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404
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Christiansen A, Davidsen JR, Titlestad I, Vestbo J, Baumbach J. A systematic review of breath analysis and detection of volatile organic compounds in COPD. J Breath Res 2016; 10:034002. [DOI: 10.1088/1752-7155/10/3/034002] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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405
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Lao T, Jiang Z, Yun J, Qiu W, Guo F, Huang C, Mancini JD, Gupta K, Laucho-Contreras ME, Naing ZZC, Zhang L, Perrella MA, Owen CA, Silverman EK, Zhou X. Hhip haploinsufficiency sensitizes mice to age-related emphysema. Proc Natl Acad Sci U S A 2016; 113:E4681-7. [PMID: 27444019 PMCID: PMC4987811 DOI: 10.1073/pnas.1602342113] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Genetic variants in Hedgehog interacting protein (HHIP) have consistently been associated with the susceptibility to develop chronic obstructive pulmonary disease and pulmonary function levels, including the forced expiratory volume in 1 s (FEV1), in general population samples by genome-wide association studies. However, in vivo evidence connecting Hhip to age-related FEV1 decline and emphysema development is lacking. Herein, using Hhip heterozygous mice (Hhip(+/-)), we observed increased lung compliance and spontaneous emphysema in Hhip(+/-) mice starting at 10 mo of age. This increase was preceded by increases in oxidative stress levels in the lungs of Hhip(+/-) vs. Hhip(+/+) mice. To our knowledge, these results provide the first line of evidence that HHIP is involved in maintaining normal lung function and alveolar structures. Interestingly, antioxidant N-acetyl cysteine treatment in mice starting at age of 5 mo improved lung function and prevented emphysema development in Hhip(+/-) mice, suggesting that N-acetyl cysteine treatment limits the progression of age-related emphysema in Hhip(+/-) mice. Therefore, reduced lung function and age-related spontaneous emphysema development in Hhip(+/-) mice may be caused by increased oxidative stress levels in murine lungs as a result of haploinsufficiency of Hhip.
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Affiliation(s)
- Taotao Lao
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Zhiqiang Jiang
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Jeong Yun
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115; Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Weiliang Qiu
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Feng Guo
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Chunfang Huang
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - John Dominic Mancini
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Kushagra Gupta
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Maria E Laucho-Contreras
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115; Chronic Obstructive Pulmonary Disease Program, The Lovelace Respiratory Research Institute, Albuquerque, NM 87108
| | - Zun Zar Chi Naing
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Li Zhang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Mark A Perrella
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115; Pediatric Newborn Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Caroline A Owen
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115; Chronic Obstructive Pulmonary Disease Program, The Lovelace Respiratory Research Institute, Albuquerque, NM 87108
| | - Edwin K Silverman
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115; Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115
| | - Xiaobo Zhou
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115; Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115;
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406
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Liu A, Wu J, Li A, Bi W, Liu T, Cao L, Liu Y, Dong L. The inhibitory mechanism of Cordyceps sinensis on cigarette smoke extract-induced senescence in human bronchial epithelial cells. Int J Chron Obstruct Pulmon Dis 2016; 11:1721-31. [PMID: 27555762 PMCID: PMC4968689 DOI: 10.2147/copd.s107396] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVES Cellular senescence is a state of irreversible growth arrest induced either by telomere shortening (replicative senescence) or stress. The bronchial epithelial cell is often injured by inhaled toxic substances, such as cigarette smoke. In the present study, we investigated whether exposure to cigarette smoke extract (CSE) induces senescence of bronchial epithelial cells; and Cordyceps sinensis mechanism of inhibition of CSE-induced cellular senescence. METHODS Human bronchial epithelial cells (16HBE cells) cultured in vitro were treated with CSE and/or C. sinensis. p16, p21, and senescence-associated-galactosidase activity were used to detect cellular senescence with immunofluorescence, quantitative polymerase chain reaction, and Western blotting. Reactive oxygen species (ROS), PI3K/AKT/mTOR and their phosphorylated proteins were examined to testify the activation of signaling pathway by ROS fluorescent staining and Western blotting. Then, inhibitors of ROS and PI3K were used to further confirm the function of this pathway. RESULTS Cellular senescence was upregulated by CSE treatment, and C. sinensis can decrease CSE-induced cellular senescence. Activation of ROS/PI3K/AKT/mTOR signaling pathway was enhanced by CSE treatment, and decreased when C. sinensis was added. Blocking ROS/PI3K/AKT/mTOR signaling pathway can attenuate CSE-induced cellular senescence. CONCLUSION CSE can induce cellular senescence in human bronchial epithelial cells, and ROS/PI3K/AKT/mTOR signaling pathway may play an important role in this process. C. sinensis can inhibit the CSE-induced senescence.
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Affiliation(s)
- Ailing Liu
- Department of Pulmonary Diseases, Qilu Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
- Department of Pulmonary Diseases, Weihai Municipal Hospital, Weihai, Shandong, People’s Republic of China
| | - Jinxiang Wu
- Department of Pulmonary Diseases, Qilu Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
| | - Aijun Li
- Department of Pulmonary Diseases, Weihai Municipal Hospital, Weihai, Shandong, People’s Republic of China
| | - Wenxiang Bi
- Institute of Biochemistry and Molecular Biology, School of Medicine, Shandong University, Jinan, Shandong, People’s Republic of China
| | - Tian Liu
- Department of Pulmonary Diseases, Qilu Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
| | - Liuzhao Cao
- Department of Pulmonary Diseases, Qilu Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
| | - Yahui Liu
- Department of Pulmonary Diseases, Qilu Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
| | - Liang Dong
- Department of Pulmonary Diseases, Qilu Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
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407
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Fratta Pasini AM, Ferrari M, Stranieri C, Vallerio P, Mozzini C, Garbin U, Zambon G, Cominacini L. Nrf2 expression is increased in peripheral blood mononuclear cells derived from mild-moderate ex-smoker COPD patients with persistent oxidative stress. Int J Chron Obstruct Pulmon Dis 2016; 11:1733-43. [PMID: 27555763 PMCID: PMC4968670 DOI: 10.2147/copd.s102218] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Inadequacy of antioxidant nuclear factor-E2-related factor 2 (Nrf2) and endoplasmic reticulum stress-mediated unfolded protein response has been implicated in severe chronic obstructive pulmonary disease (COPD) and cigarette smoking-induced emphysema. As evidence suggests that the ability to upregulate Nrf2 expression may influence the progression of COPD and no data exist up to now in ex-smokers with mild-moderate COPD, this study was first aimed to evaluate Nrf2 and unfolded protein response expression in peripheral blood mononuclear cells (PBMC) of mild-moderate ex-smokers with COPD compared to smoking habit-matched non-COPD subjects. Then, we tested whether oxidative stress persists after cigarette smoking cessation and whether the concentrations of oxidized phospholipids (oxidation products of the phospholipid 1-palmitoyl-2-arachidonyl-sn-glycero-3-phosphorylcholine [oxPAPC]) in the PBMC of the same subjects may have a causative role in determining the upregulation of Nrf2. The expression (mRNA and protein) of Nrf2 and of its related gene heme oxygenase-1 was significantly increased in COPD group without differences in the unfolded protein response. Plasma malondialdehyde, the circulating marker of oxidative stress, and oxPAPC in PBMC were significantly higher in COPD than in non-COPD subjects. The fact that the expression of p47phox, a subunit of NADPH oxidase, was increased in PBMC of COPD patients and that it was directly correlated with oxPAPC may indicate that oxPAPC may be one of the determinants of oxidative stress-induced Nrf2 upregulation. Finally, we also demonstrated that lung function inversely correlated with plasma malondialdehyde and with Nrf2 and heme oxygenase-1 mRNA expression in all subjects. Our results indicate that mild-moderate ex-smokers with COPD may be able to counteract oxidative stress by increasing the expression of Nrf2/antioxidant-response elements. Because Nrf2 failure significantly contributes to the development of COPD, our findings suggest that the possibility to prevent Nrf2 reduction may open a new scenario in helping to prevent the oxidative stress-associated lung function decline.
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Affiliation(s)
| | - Marcello Ferrari
- Department of Medicine, Unit of Respiratory Diseases, University of Verona, Verona, Italy
| | | | | | | | - Ulisse Garbin
- Department of Medicine, Section of Internal Medicine
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408
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Duran CG, Burbank AJ, Mills KH, Duckworth HR, Aleman MM, Kesic MJ, Peden DB, Pan Y, Zhou H, Hernandez ML. A proof-of-concept clinical study examining the NRF2 activator sulforaphane against neutrophilic airway inflammation. Respir Res 2016; 17:89. [PMID: 27450419 PMCID: PMC4957339 DOI: 10.1186/s12931-016-0406-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Accepted: 07/14/2016] [Indexed: 12/27/2022] Open
Abstract
UNLABELLED Sulforaphane (SFN), a naturally occurring isothiocyanate found in cruciferous vegetables, is implicated as a possible therapy for airway inflammation via induction of the transcription factor NF-E2-related factor 2 (NRF2). In this proof-of-concept clinical study, we show that supplementation of SFN with broccoli sprout homogenate in healthy human subjects did not induce expression of antioxidant genes or protect against neutrophilic airway inflammation in an ozone-exposure model. Therefore, dietary sulforaphane supplementation is not a promising candidate for larger scale clinical trials targeting airway inflammation. TRIAL REGISTRATION NCT01625130 . Registered 19 June, 2012.
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Affiliation(s)
- Charity G Duran
- UNC Center for Environmental Medicine, Asthma, & Lung Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Allison J Burbank
- UNC Center for Environmental Medicine, Asthma, & Lung Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Katherine H Mills
- UNC Center for Environmental Medicine, Asthma, & Lung Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Heather R Duckworth
- UNC Center for Environmental Medicine, Asthma, & Lung Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Maria M Aleman
- UNC Center for Environmental Medicine, Asthma, & Lung Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Matthew J Kesic
- Department of Physical Therapy, Methodist University, Fayetteville, NC, USA
| | - David B Peden
- UNC Center for Environmental Medicine, Asthma, & Lung Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Yinghao Pan
- Department of Biostatistics, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Haibo Zhou
- Department of Biostatistics, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Michelle L Hernandez
- UNC Center for Environmental Medicine, Asthma, & Lung Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. .,Division of Allergy, Immunology & Rheumatology, UNC School of Medicine, 104 Mason Farm Road, CB #7310, Chapel Hill, NC, 27599-7310, USA.
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409
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Gupta I, Ganguly S, Rozanas CR, Stuehr DJ, Panda K. Ascorbate attenuates pulmonary emphysema by inhibiting tobacco smoke and Rtp801-triggered lung protein modification and proteolysis. Proc Natl Acad Sci U S A 2016; 113:E4208-17. [PMID: 27382160 PMCID: PMC4961122 DOI: 10.1073/pnas.1600056113] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Cigarette smoking causes emphysema, a fatal disease involving extensive structural and functional damage of the lung. Using a guinea pig model and human lung cells, we show that oxidant(s) present in tobacco smoke not only cause direct oxidative damage of lung proteins, contributing to the major share of lung injury, but also activate Rtp801, a key proinflammatory cellular factor involved in tobacco smoke-induced lung damage. Rtp801 triggers nuclear factor κB and consequent inducible NOS (iNOS)-mediated overproduction of NO, which in combination with excess superoxide produced during Rtp801 activation, contribute to increased oxido-nitrosative stress and lung protein nitration. However, lung-specific inhibition of iNOS with a iNOS-specific inhibitor, N6-(1-iminoethyl)-L-lysine, dihydrochloride (L-NIL) solely restricts lung protein nitration but fails to prevent or reverse the major tobacco smoke-induced oxidative lung injury. In comparison, the dietary antioxidant, ascorbate or vitamin C, can substantially prevent such damage by inhibiting both tobacco smoke-induced lung protein oxidation as well as activation of pulmonary Rtp801 and consequent iNOS/NO-induced nitration of lung proteins, that otherwise lead to increased proteolysis of such oxidized or nitrated proteins by endogenous lung proteases, resulting in emphysematous lung damage. Vitamin C also restricts the up-regulation of matrix-metalloproteinase-9, the major lung protease involved in the proteolysis of such modified lung proteins during tobacco smoke-induced emphysema. Overall, our findings implicate tobacco-smoke oxidant(s) as the primary etiopathogenic factor behind both the noncellular and cellular damage mechanisms governing emphysematous lung injury and demonstrate the potential of vitamin C to accomplish holistic prevention of such damage.
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Affiliation(s)
- Indranil Gupta
- Department of Biotechnology and Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, Kolkata 700019, India
| | - Souradipta Ganguly
- Department of Biotechnology and Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, Kolkata 700019, India
| | - Christine R Rozanas
- Proteomics Applications Laboratory, GE Healthcare Life Sciences, Piscataway, NJ 08854
| | - Dennis J Stuehr
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195
| | - Koustubh Panda
- Department of Biotechnology and Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, Kolkata 700019, India;
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410
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Lee KY, Chiang LL, Ho SC, Liu WT, Chen TT, Feng PH, Su CL, Chuang KJ, Chang CC, Chuang HC. Associations of autophagy with lung diffusion capacity and oxygen saturation in severe COPD: effects of particulate air pollution. Int J Chron Obstruct Pulmon Dis 2016; 11:1569-78. [PMID: 27468231 PMCID: PMC4946865 DOI: 10.2147/copd.s108993] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Although traffic exposure has been associated with the development of COPD, the role of particulate matter <10 μm in aerodynamic diameter (PM10) in the pathogenesis of COPD is not yet fully understood. We assessed the 1-year effect of exposure to PM10 on the pathogenesis of COPD in a retrospective cohort study. We recruited 53 subjects with COPD stages III and IV and 15 healthy controls in a hospital in Taiwan. We estimated the 1-year annual mean levels of PM10 at all residential addresses of the cohort participants. Changes in PM10 for the 1-year averages in quintiles were related to diffusion capacity of the lung for carbon monoxide levels (r=−0.914, P=0.029), changes in the pulse oxygen saturation (ΔSaO2; r=−0.973, P=0.005), receptor for advanced glycation end-products (r=−0.881, P=0.048), interleukin-6 (r=0.986, P=0.002), ubiquitin (r=0.940, P=0.017), and beclin 1 (r=0.923, P=0.025) in COPD. Next, we observed that ubiquitin was correlated with ΔSaO2 (r=−0.374, P=0.019). Beclin 1 was associated with diffusion capacity of the lung for carbon monoxide (r=−0.362, P=0.028), ΔSaO2 (r=−0.354, P=0.032), and receptor for advanced glycation end-products (r=−0.471, P=0.004). Autophagy may be an important regulator of the PM10-related pathogenesis of COPD, which could cause deterioration in the lung diffusion capacity and oxygen saturation.
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Affiliation(s)
- Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital; Department of Internal Medicine, School of Medicine
| | - Ling-Ling Chiang
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital; School of Respiratory Therapy
| | - Shu-Chuan Ho
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital; School of Respiratory Therapy
| | - Wen-Te Liu
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital; Department of Internal Medicine, School of Medicine; School of Respiratory Therapy
| | - Tzu-Tao Chen
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital
| | - Po-Hao Feng
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital; Department of Internal Medicine, School of Medicine
| | - Chien-Ling Su
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital; School of Respiratory Therapy
| | - Kai-Jen Chuang
- Department of Public Health, School of Medicine, College of Medicine; School of Public Health, College of Public Health and Nutrition, Taipei Medical University, Taipei City, Taiwan
| | - Chih-Cheng Chang
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital; Department of Internal Medicine, School of Medicine
| | - Hsiao-Chi Chuang
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital; Department of Internal Medicine, School of Medicine; School of Respiratory Therapy
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411
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Vij N, Min T, Bodas M, Gorde A, Roy I. Neutrophil targeted nano-drug delivery system for chronic obstructive lung diseases. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:2415-2427. [PMID: 27381067 DOI: 10.1016/j.nano.2016.06.008] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 06/09/2016] [Accepted: 06/15/2016] [Indexed: 01/13/2023]
Abstract
The success of drug delivery to target airway cell(s) remains a significant challenge due to the limited ability of nanoparticle (NP) systems to circumvent protective airway-defense mechanisms. The size, density, surface and physical-chemical properties of nanoparticles are the key features that determine their ability to navigate across the airway-barrier. We evaluated here the efficacy of a PEGylated immuno-conjugated PLGA-nanoparticle (PINP) to overcome this challenge and selectively deliver drug to specific inflammatory cells (neutrophils). We first characterized the size, shape, surface-properties and neutrophil targeting using dynamic laser scattering, transmission electron microscopy and flow cytometry. Next, we assessed the efficacy of neutrophil-targeted PINPs in transporting through the airway followed by specific binding and release of drug to neutrophils. Finally, our results demonstrate the efficacy of PINP mediated non-steroidal anti-inflammatory drug-(ibuprofen) delivery to neutrophils in murine models of obstructive lung diseases, based on its ability to control neutrophilic-inflammation and resulting lung disease.
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Affiliation(s)
- Neeraj Vij
- Department of Pediatric Respiratory Science, The Johns Hopkins University School of Medicine, Baltimore, MD; College of Medicine, Central Michigan University, Mt Pleasant, MI.
| | - Taehong Min
- Department of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD; Genentech, 1 DNA Way, San Francisco, CA
| | - Manish Bodas
- Department of Pediatric Respiratory Science, The Johns Hopkins University School of Medicine, Baltimore, MD; College of Medicine, Central Michigan University, Mt Pleasant, MI
| | - Aakruti Gorde
- Department of Pediatric Respiratory Science, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Indrajit Roy
- Department of Chemistry, State University of New York, Buffalo, NY
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412
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Zhang M, Fei X, Zhang GQ, Zhang PY, Li F, Bao WP, Zhang YY, Zhou X. Role of neutralizing anti-murine interleukin-17A monoclonal antibody on chronic ozone-induced airway inflammation in mice. Biomed Pharmacother 2016; 83:247-256. [PMID: 27380433 DOI: 10.1016/j.biopha.2016.06.041] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 06/15/2016] [Accepted: 06/20/2016] [Indexed: 12/19/2022] Open
Abstract
Exposure to ozone has led to airway inflammation and airway hyperresponsiveness, which potential mechanisms relate to ozone-induced oxidative stress. IL-17 is a growing target for autoimmune and inflammatory diseases. The aim of the study was to examine the inhibitory effects of anti-murine interleukin-17A monoclonal antibody (IL-17mAb) on adverse effects of ozone which are noted above. After C57/BL6 mice were exposed to ozone (2.5ppm; 3h) for 12 times over 6 weeks, IL-17mAb, PBS was intraperitoneally injected into mice 1h after ozone or air exposure for 6 weeks and mice were studied 24h after final exposure, monitoring bronchial responsiveness, airway inflammatory cells, lung histology, levels of neutrophil-related chemokine and proinflammatory cytokines in bronchoalveolar lavage (BAL) fluid and serum, the expression of IL-17A mRNA and protein, glucocorticoid receptors (GR), and the phosphorylation of p38MAPK in lung tissues. The administration of IL-17mAb reduced the ozone-induced increases in total cells, especially neutrophils; decreased levels of cytokines, including IL-8 in BAL fluid, IL-8 and IL-17A in serum; mitigated the severity of airway hyperresponsiveness; attenuated lung inflammation scores and histologic analysis confirmed the suppression of lung inflammation, compared with the administration of a control PBS. Exposure to ozone results in increases in IL-17A production rate, mRNA and protein levels of IL-17A and the protein level of GR. These effects were halted and reversed by IL-17mAb treatment. Furthermore, IL-17mAb also reduced the phosphorylation of p38MAPK. Therefore, we conclude that IL-17mAb may be a useful therapy in ozone-related diseases, including COPD.
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Affiliation(s)
- Min Zhang
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xia Fei
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Guo-Qing Zhang
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Peng-Yu Zhang
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Feng Li
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Wu-Ping Bao
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Ying-Ying Zhang
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xin Zhou
- Department of Respiratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China.
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413
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Caramori G, Casolari P, Barczyk A, Durham AL, Di Stefano A, Adcock I. COPD immunopathology. Semin Immunopathol 2016; 38:497-515. [PMID: 27178410 PMCID: PMC4897000 DOI: 10.1007/s00281-016-0561-5] [Citation(s) in RCA: 122] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 04/20/2016] [Indexed: 02/06/2023]
Abstract
The immunopathology of chronic obstructive pulmonary disease (COPD) is based on the innate and adaptive inflammatory immune responses to the chronic inhalation of cigarette smoking. In the last quarter of the century, the analysis of specimens obtained from the lower airways of COPD patients compared with those from a control group of age-matched smokers with normal lung function has provided novel insights on the potential pathogenetic role of the different cells of the innate and acquired immune responses and their pro/anti-inflammatory mediators and intracellular signalling pathways, contributing to a better knowledge of the immunopathology of COPD both during its stable phase and during its exacerbations. This also has provided a scientific rationale for new drugs discovery and targeting to the lower airways. This review summarises and discusses the immunopathology of COPD patients, of different severity, compared with control smokers with normal lung function.
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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 Medicina Interna e Cardiorespiratoria, Università di Ferrara, Via Savonarola 9, 44121, Ferrara, Italy.
| | - Paolo Casolari
- 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 Medicina Interna e Cardiorespiratoria, Università di Ferrara, Via Savonarola 9, 44121, Ferrara, Italy
| | - Adam Barczyk
- Katedra i Klinika Pneumonologii, Slaski Uniwersytet Medyczny w Katowicach, Katowice, Poland
| | - Andrew L Durham
- Airways Disease Section, National Heart and Lung Institute, Imperial College London, London, UK
| | - Antonino Di Stefano
- Divisione di Pneumologia e Laboratorio di Citoimmunopatologia dell'Apparato Cardio Respiratorio, Salvatore Maugeri Foundation, IRCCS, Veruno, NO, Italy
| | - Ian Adcock
- Airways Disease Section, National Heart and Lung Institute, Imperial College London, London, UK
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414
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Stickland MK, Fuhr DP, Edgell H, Byers BW, Bhutani M, Wong EYL, Steinback CD. Chemosensitivity, Cardiovascular Risk, and the Ventilatory Response to Exercise in COPD. PLoS One 2016; 11:e0158341. [PMID: 27355356 PMCID: PMC4927073 DOI: 10.1371/journal.pone.0158341] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 06/14/2016] [Indexed: 11/19/2022] Open
Abstract
UNLABELLED COPD is associated with elevated cardiovascular risk and a potentiated ventilatory response to exercise. Enhanced carotid chemoreceptor (CC) activity/sensitivity is present in other clinical conditions, has been shown to contribute to sympathetic vasoconstrictor outflow, and is predictive of mortality. CC activity/sensitivity, and the resulting functional significance, has not been well examined in COPD. We hypothesized that CC activity/sensitivity would be elevated in COPD, and related to increased pulse wave velocity (a marker of CV risk) and the ventilatory response to exercise. METHODS 30 COPD patients and 10 healthy age-matched controls were examined. Participants performed baseline cardiopulmonary exercise and pulmonary function testing. CC activity was later evaluated by the drop in ventilation with breathing 100% O2, and CC sensitivity was then assessed by the ventilatory response to hypoxia (ΔVE/ΔSpO2). Peripheral arterial stiffness was subsequently evaluated by measurement of pulse wave velocity (PWV) using applanation tonometry while the subjects were breathing room air, and then following chemoreceptor inhibition by breathing 100% O2 for 2 minutes. RESULTS CC activity, CC sensitivity, PWV and the ventilatory response to exercise were all increased in COPD relative to controls. CC sensitivity was related to PWV; however, neither CC activity nor CC sensitivity was related to the ventilatory response to exercise in COPD. CC inhibition by breathing 100% O2 normalized PWV in COPD, while no effect was observed in controls. CONCLUSION CC activity and sensitivity are elevated in COPD, and appear related to cardiovascular risk; however, CC activity/sensitivity does not contribute to the potentiated ventilatory response to exercise.
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Affiliation(s)
- Michael K. Stickland
- Pulmonary Division, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
- G.F. MacDonald Centre for Lung Health, Covenant Health, Edmonton, Alberta, Canada
- * E-mail:
| | - Desi P. Fuhr
- Pulmonary Division, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Heather Edgell
- Pulmonary Division, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Brad W. Byers
- Pulmonary Division, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Mohit Bhutani
- Pulmonary Division, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Eric Y. L. Wong
- Pulmonary Division, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Craig D. Steinback
- Faculty of Physical Education and Recreation, University of Alberta, Edmonton, Alberta, Canada
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415
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Han B, Poppinga WJ, Zuo H, Zuidhof AB, Bos IST, Smit M, Vogelaar P, Krenning G, Henning RH, Maarsingh H, Halayko AJ, van Vliet B, Stienstra S, Graaf ACVD, Meurs H, Schmidt M. The novel compound Sul-121 inhibits airway inflammation and hyperresponsiveness in experimental models of chronic obstructive pulmonary disease. Sci Rep 2016; 6:26928. [PMID: 27229886 PMCID: PMC4882609 DOI: 10.1038/srep26928] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 05/11/2016] [Indexed: 12/15/2022] Open
Abstract
COPD is characterized by persistent airflow limitation, neutrophilia and oxidative stress from endogenous and exogenous insults. Current COPD therapy involving anticholinergics, β2-adrenoceptor agonists and/or corticosteroids, do not specifically target oxidative stress, nor do they reduce chronic pulmonary inflammation and disease progression in all patients. Here, we explore the effects of Sul-121, a novel compound with anti-oxidative capacity, on hyperresponsiveness (AHR) and inflammation in experimental models of COPD. Using a guinea pig model of lipopolysaccharide (LPS)-induced neutrophilia, we demonstrated that Sul-121 inhalation dose-dependently prevented LPS-induced airway neutrophilia (up to ~60%) and AHR (up to ~90%). Non-cartilaginous airways neutrophilia was inversely correlated with blood H2S, and LPS-induced attenuation of blood H2S (~60%) was prevented by Sul-121. Concomitantly, Sul-121 prevented LPS-induced production of the oxidative stress marker, malondialdehyde by ~80%. In immortalized human airway smooth muscle (ASM) cells, Sul-121 dose-dependently prevented cigarette smoke extract-induced IL-8 release parallel with inhibition of nuclear translocation of the NF-κB subunit, p65 (each ~90%). Sul-121 also diminished cellular reactive oxygen species production in ASM cells, and inhibited nuclear translocation of the anti-oxidative response regulator, Nrf2. Our data show that Sul-121 effectively inhibits airway inflammation and AHR in experimental COPD models, prospectively through inhibition of oxidative stress.
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MESH Headings
- Animals
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Antioxidants/pharmacology
- Cell Line, Transformed
- Chromans/chemistry
- Chromans/pharmacology
- Complex Mixtures/antagonists & inhibitors
- Complex Mixtures/pharmacology
- Disease Models, Animal
- Gene Expression Regulation
- Guinea Pigs
- Humans
- Hydrogen Sulfide/agonists
- Hydrogen Sulfide/blood
- Hypersensitivity/etiology
- Hypersensitivity/immunology
- Hypersensitivity/metabolism
- Hypersensitivity/prevention & control
- Inflammation
- Interleukin-8/antagonists & inhibitors
- Interleukin-8/genetics
- Interleukin-8/immunology
- Lipopolysaccharides/administration & dosage
- Lung
- Male
- Malondialdehyde/antagonists & inhibitors
- Malondialdehyde/metabolism
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/immunology
- Myocytes, Smooth Muscle/pathology
- NF-E2-Related Factor 2/antagonists & inhibitors
- NF-E2-Related Factor 2/genetics
- NF-E2-Related Factor 2/immunology
- Neutrophils/drug effects
- Neutrophils/immunology
- Neutrophils/pathology
- Oxidative Stress
- Piperazines/chemistry
- Piperazines/pharmacology
- Pulmonary Disease, Chronic Obstructive/drug therapy
- Pulmonary Disease, Chronic Obstructive/immunology
- Pulmonary Disease, Chronic Obstructive/metabolism
- Pulmonary Disease, Chronic Obstructive/physiopathology
- Reactive Oxygen Species/antagonists & inhibitors
- Reactive Oxygen Species/metabolism
- Tars/chemistry
- Tars/toxicity
- Transcription Factor RelA/antagonists & inhibitors
- Transcription Factor RelA/genetics
- Transcription Factor RelA/immunology
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Affiliation(s)
- Bing Han
- University of Groningen, Department of Molecular Pharmacology, Groningen, the Netherlands
- GRIAC research institute, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Wilfred J. Poppinga
- University of Groningen, Department of Molecular Pharmacology, Groningen, the Netherlands
- GRIAC research institute, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Haoxiao Zuo
- University of Groningen, Department of Molecular Pharmacology, Groningen, the Netherlands
- GRIAC research institute, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Annet B. Zuidhof
- University of Groningen, Department of Molecular Pharmacology, Groningen, the Netherlands
| | - I. Sophie T. Bos
- University of Groningen, Department of Molecular Pharmacology, Groningen, the Netherlands
| | - Marieke Smit
- University of Groningen, Department of Molecular Pharmacology, Groningen, the Netherlands
| | | | - Guido Krenning
- University of Groningen, University Medical Center Groningen, Dept. Pathology and Medical Biology, Laboratory for Cardiovascular Regenerative Medicine, Groningen, the Netherlands
| | - Robert H. Henning
- University of Groningen, Department of Clinical Pharmacy and Pharmacology, Groningen, the Netherlands
| | - Harm Maarsingh
- Palm Beach Atlantic University, Lloyd L. Gregory School of Pharmacy, Department of Pharmaceutical Sciences, West Palm Beach, FL, USA
| | - Andrew J. Halayko
- Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, Manitoba, Canada
| | | | | | | | - Herman Meurs
- University of Groningen, Department of Molecular Pharmacology, Groningen, the Netherlands
- GRIAC research institute, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Martina Schmidt
- University of Groningen, Department of Molecular Pharmacology, Groningen, the Netherlands
- GRIAC research institute, University of Groningen, University Medical Center Groningen, the Netherlands
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416
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Barnes PJ. Inflammatory mechanisms in patients with chronic obstructive pulmonary disease. J Allergy Clin Immunol 2016; 138:16-27. [PMID: 27373322 DOI: 10.1016/j.jaci.2016.05.011] [Citation(s) in RCA: 841] [Impact Index Per Article: 105.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 05/12/2016] [Accepted: 05/13/2016] [Indexed: 12/15/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is associated with chronic inflammation affecting predominantly the lung parenchyma and peripheral airways that results in largely irreversible and progressive airflow limitation. This inflammation is characterized by increased numbers of alveolar macrophages, neutrophils, T lymphocytes (predominantly TC1, TH1, and TH17 cells), and innate lymphoid cells recruited from the circulation. These cells and structural cells, including epithelial and endothelial cells and fibroblasts, secrete a variety of proinflammatory mediators, including cytokines, chemokines, growth factors, and lipid mediators. Although most patients with COPD have a predominantly neutrophilic inflammation, some have an increase in eosinophil counts, which might be orchestrated by TH2 cells and type 2 innate lymphoid cells though release of IL-33 from epithelial cells. These patients might be more responsive to corticosteroids and bronchodilators. Oxidative stress plays a key role in driving COPD-related inflammation, even in ex-smokers, and might result in activation of the proinflammatory transcription factor nuclear factor κB (NF-κB), impaired antiprotease defenses, DNA damage, cellular senescence, autoantibody generation, and corticosteroid resistance though inactivation of histone deacetylase 2. Systemic inflammation is also found in patients with COPD and can worsen comorbidities, such as cardiovascular diseases, diabetes, and osteoporosis. Accelerated aging in the lungs of patients with COPD can also generate inflammatory protein release from senescent cells in the lung. In the future, it will be important to recognize phenotypes of patients with optimal responses to more specific therapies, and development of biomarkers that identify the therapeutic phenotypes will be important.
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Affiliation(s)
- Peter J Barnes
- National Heart and Lung Institute, Imperial College, London, United Kingdom.
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417
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Xie C, Chen X, Qiu F, Zhang L, Wu D, Chen J, Yang L, Lu J. The role of WWOX polymorphisms on COPD susceptibility and pulmonary function traits in Chinese: a case-control study and family-based analysis. Sci Rep 2016; 6:21716. [PMID: 26902998 PMCID: PMC4763216 DOI: 10.1038/srep21716] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 01/29/2016] [Indexed: 01/21/2023] Open
Abstract
Single nucleotide polymorphisms (SNPs) in the WW domain containing oxidoreductase (WWOX) gene were recently identified to be quantitative trait loci for lung function and thus likely to be susceptible biomarkers for COPD. However, the associations between WWOX SNPs and COPD risk are still unclear. Here, by conducting a two-center case-control study including 1511 COPD cases and 1677 controls and a family-based analysis comprising 95 nuclear pedigrees, we tested the associations between five SNPs that are rs10220974C >T, rs3764340C >G, rs12918952G >A, rs383362G >T, rs12828G >A of WWOX and COPD risk as well as the hereditary inclination of these loci among COPD families. We found that the SNP rs383362G >T was significantly associated with an increased risk of COPD in a T allele-number dependent-manner (OR = 1.30, 95%CI = 1.11 - 1.52). The T allele was more prone to over transmit to sick children and sibs than the G allele (Z = 2.900, P = 0.004). Moreover, the forced expiratory volume in one second/forced vital capacity (FEV1/FVC), FEV1/predicted-FEV1 and annual FEV1 also significantly decreased in the rs383362T carriers compared to the rs383362GG carriers. For other SNPs, no significant association was observed for COPD and pulmonary function. Taken together, our data demonstrated that the SNP rs383362G >T of WWOX plays a role in COPD inheritance.
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Affiliation(s)
- Chenli Xie
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, 195 Dongfengxi Road, Guangzhou 510182, China.,Department of respiratory medicine, The Fifth People's Hospital of Dongguan City, Dongguan 523900, China
| | - Xiaoliang Chen
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, 195 Dongfengxi Road, Guangzhou 510182, China.,Shenzhen Guangming district center for disease control and prevention Shenzhen 518106, China
| | - Fuman Qiu
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, 195 Dongfengxi Road, Guangzhou 510182, China
| | - Lisha Zhang
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, 195 Dongfengxi Road, Guangzhou 510182, China
| | - Di Wu
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, 195 Dongfengxi Road, Guangzhou 510182, China
| | - Jiansong Chen
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, 195 Dongfengxi Road, Guangzhou 510182, China
| | - Lei Yang
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, 195 Dongfengxi Road, Guangzhou 510182, China
| | - Jiachun Lu
- The State Key Lab of Respiratory Disease, The Institute for Chemical Carcinogenesis, Collaborative Innovation Center for Environmental Toxicity, Guangzhou Medical University, 195 Dongfengxi Road, Guangzhou 510182, China
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418
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Carpagnano GE, Lacedonia D, Malerba M, Palmiotti GA, Cotugno G, Carone M, Foschino-Barbaro MP. Analysis of mitochondrial DNA alteration in new phenotype ACOS. BMC Pulm Med 2016; 16:31. [PMID: 26867569 PMCID: PMC4751730 DOI: 10.1186/s12890-016-0192-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 02/03/2016] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Mitochondria contain their own DNA (MtDNA) that is very sensitive to oxidative stress and as a consequence could be damaged in quantity. Oxidative stress is largely recognized to play a key role in the pathogenesis of asthma and COPD and might have a role in the new intermediate phenotype ACOS (asthma-COPD overlap syndrome). The aim of this study was to investigate MtDNA alterations, as an expression of mitochondrial dysfunction, in ACOS and to verify whether they might help in the identification of this new phenotype and in its differentiation from asthma and COPD. METHODS Ten (10) ACOS according to Spanish guidelines, 13 ACOS according to GINA guidelines, 13 COPD, 14 asthmatic patients and ten normal subjects were enrolled. They further underwent a blood, induced sputum and exhaled nitric oxide collection. Content of MtDNA and nuclear DNA (nDNA) were measured in the blood cells of patients by Real Time PCR. RESULTS ACOS patients showed an increase of MtDNA/nDNA ratio. Dividing ACOS according to guidelines, those from the Spanish showed a higher value of MtDNA/nDNA compared to those from GINA/GOLD (92.69 ± 7.31 vs 80.68 ± 4.16). Spanish ACOS presented MtDNA/nDNA ratio closer to COPD than asthma. MtDNA was higher in asthmatic, COPD, GINA and Spanish ACOS patients compared to healthy subjects (73.30 ± 4.47-137.0 ± 19.45-80.68 ± 4.16-92.69 ± 7.31 vs 65.97 ± 20.56). CONCLUSION We found an increase of MtDNA/nDNA ratio in ACOS subjects that led us to conclude that there is presence of mitochondrial dysfunction in this disease, that makes it closer to COPD than to asthma. Although the MtDNA/nDNA ratio results are a useful marker for differential diagnosis from asthma, COPD and ACOS, further studies are needed to confirm the potentiality of MtDNA/nDNA ratio and to a better characterization of ACOS.
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Affiliation(s)
- G E Carpagnano
- Department of Medical and Surgical Sciences, Institute of Respiratory Diseases, University of Foggia, viale degli Aviatori, Foggia, 71100, Italy.
| | - D Lacedonia
- Department of Medical and Surgical Sciences, Institute of Respiratory Diseases, University of Foggia, viale degli Aviatori, Foggia, 71100, Italy.
| | - M Malerba
- Department of Internal Medicine, University of Brescia and AO Spedali Civili, Brescia, Italy.
| | - G A Palmiotti
- Department of Medical and Surgical Sciences, Institute of Respiratory Diseases, University of Foggia, viale degli Aviatori, Foggia, 71100, Italy.
| | - G Cotugno
- Department of Medical and Surgical Sciences, Institute of Respiratory Diseases, University of Foggia, viale degli Aviatori, Foggia, 71100, Italy.
| | - M Carone
- Division of Respiratory Disease, Fondazione Salvatore Maugeri, Cassano Murge, Italy.
| | - M P Foschino-Barbaro
- Department of Medical and Surgical Sciences, Institute of Respiratory Diseases, University of Foggia, viale degli Aviatori, Foggia, 71100, Italy.
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419
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Christopher KL, Repine JE. COUNTERPOINT: Does Low-Dose Oxygen Expose Patients With COPD to More Radiation-Like Risks Than Patients Without COPD? No. Chest 2016; 149:306-308. [DOI: 10.1016/j.chest.2015.10.074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 10/21/2015] [Indexed: 11/24/2022] Open
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420
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Abe K, Sugiura H, Hashimoto Y, Ichikawa T, Koarai A, Yamada M, Numakura T, Onodera K, Tanaka R, Sato K, Yanagisawa S, Okazaki T, Tamada T, Kikuchi T, Ichinose M. Possible role of Krüppel-like factor 5 in the remodeling of small airways and pulmonary vessels in chronic obstructive pulmonary disease. Respir Res 2016; 17:7. [PMID: 26792671 PMCID: PMC4719583 DOI: 10.1186/s12931-016-0322-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 01/12/2016] [Indexed: 12/30/2022] Open
Abstract
Background Small airway remodeling is an important cause of the airflow limitation in chronic obstructive pulmonary disease (COPD). A large population of patients with COPD also have pulmonary hypertension. Krüppel-like factor 5 (KLF5) is a zinc-finger transcription factor that contributes to tissue remodeling in cardiovascular diseases. Here, we evaluate the possible involvement of KLF5 in the remodeling of small airways and pulmonary vessels in COPD. Methods Lung tissues were obtained from 23 control never-smokers, 17 control ex-smokers and 24 ex-smokers with COPD. The expression of KLF5 in the lung tissues was investigated by immunohistochemistry. We investigated whether oxidative/nitrosative stress, which is a major cause of the pathogenesis in COPD, could augment the production of KLF5. We examined the role of KLF5 in the stress-mediated tissue remodeling responses. We also investigated the susceptibility of KLF5 expression to nitrosative stress using bronchial fibroblasts isolated from the lung tissues. Results The expression of KLF5 was up-regulated in the small airways and pulmonary vessels of the COPD patients and it was mainly expressed in bronchial fibroblasts and cells of the pulmonary vessels. The extent of the KLF5 expression in the small airway of the COPD group had a significant correlation with the severity of the airflow limitation. Oxidative/nitrosative stress augmented the production of KLF5 in lung fibroblasts as well as the translocation of KLF5 into the nuclei. Silencing of KLF5 suppressed the stress-augmented differentiation into myofibroblasts, the release of collagens and metalloproteinases. Bronchial fibroblasts from the patients with COPD highly expressed KLF5 compared to those from the control subjects under basal condition and were more susceptible to the induction of KLF5 expression by nitrosative stress compared to those from the control subjects. Conclusion We provide the first evidence that the expression of KLF5 is up-regulated in small airways and pulmonary vessels of patients with COPD and may be involved in the tissue remodeling of COPD.
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Affiliation(s)
- Kyoko Abe
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Hisatoshi Sugiura
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan.
| | - Yuichiro Hashimoto
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Tomohiro Ichikawa
- Third Department of Internal Medicine, Wakayama Medical University, School of Medicine, 811-1 Kimiidera, Wakayama, 641-8509, Japan
| | - Akira Koarai
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Mitsuhiro Yamada
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Tadahisa Numakura
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Katsuhiro Onodera
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Rie Tanaka
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Kei Sato
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Satoru Yanagisawa
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Tatsuma Okazaki
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Tsutomu Tamada
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Toshiaki Kikuchi
- Department of Respiratory Medicine and Infectious Diseases, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachidori, Chuo-ku, Niigata, 951-8510, Japan
| | - Masakazu Ichinose
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
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Oxidative Stress Markers in Sputum. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:2930434. [PMID: 26885248 PMCID: PMC4738959 DOI: 10.1155/2016/2930434] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 10/15/2015] [Accepted: 10/18/2015] [Indexed: 01/12/2023]
Abstract
Although oxidative stress is thought to play a pivotal role in the pathogenesis of inflammatory airway diseases, its assessment in clinical practice remains elusive. In recent years, it has been conceptualized that oxidative stress markers in sputum should be employed to monitor oxidative processes in patients with asthma, chronic obstructive pulmonary disease (COPD), or cystic fibrosis (CF). In this review, the use of sputum-based oxidative markers was explored and potential clinical applications were considered. Among lipid peroxidation-derived products, 8-isoprostane and malondialdehyde have been the most frequently investigated, while nitrosothiols and nitrotyrosine may serve as markers of nitrosative stress. Several studies have showed higher levels of these products in patients with asthma, COPD, or CF compared to healthy subjects. Marker concentrations could be further increased during exacerbations and decreased along with recovery of these diseases. Measurement of oxidized guanine species and antioxidant enzymes in the sputum could be other approaches for assessing oxidative stress in pulmonary patients. Collectively, even though there are promising findings in this field, further clinical studies using more established detection techniques are needed to clearly show the benefit of these measurements in the follow-up of patients with inflammatory airway diseases.
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Matera MG, Calzetta L, Cazzola M. Oxidation pathway and exacerbations in COPD: the role of NAC. Expert Rev Respir Med 2015; 10:89-97. [DOI: 10.1586/17476348.2016.1121105] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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423
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Zhang JQ, Zhang JQ, Fang LZ, Liu L, Fu WP, Dai LM. Effect of oral N-acetylcysteine on COPD patients with microsatellite polymorphism in the heme oxygenase-1 gene promoter. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:6379-87. [PMID: 26674585 PMCID: PMC4676509 DOI: 10.2147/dddt.s91823] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Background Heme oxygenase-1 (HO-1) plays a protective role as an antioxidant in the lung, and HO-1 gene promoter polymorphism has been shown to be associated with the severity and prognosis of COPD patients. N-acetylcysteine (NAC), an antioxidant/mucous modifier, has shown an uncertain benefit in COPD patients. We hypothesized that this polymorphism could be associated with the effectiveness of oral NAC. Methods A total of 368 patients with COPD were recruited and the polymorphisms of their HO-1 gene promoter were classified into three subclasses according to the number of (GT)n repeats, as previously reported: class S (<27 (GT)n repeats), class M (27–32 (GT)n repeats), and class L (>32 (GT)n repeats). These subjects were then classified as L+ group (with the L allele: L/L, L/M, L/S) and L− group (without the L allele: M/M, M/S, S/S). All the patients were allocated to standard therapy plus NAC 600 mg bid over a 1-year period and were observed over that year. Results The L− group saw improvements in forced expiratory volume in 1 second (FEV1) (from 1.44±0.37 to 1.58±0.38, P=0.04) and FEV1% predicted (from 56.6±19.2 to 59.7±17.2, P=0.03). No improvement was found in forced vital capacity of each group and the decline of forced vital capacity in both of the groups was not statistical significant. The number of yearly COPD exacerbations of the L− group was 1.5±0.66 which was lower than the 2.1±0.53 of the L+ group (P<0.01). For the changes of St George’s Respiratory Questionnaire (SGRQ) score, only the activity score of the L− group was more significant than that of the L+ group (P=0.02). The improvement of the outcome of 6-minute walking distance test in L− group (from 290.1±44.9 meters to 309.7±46.9 m) was higher than that in the L+ group (from 289.7±46.2 m to 300.3±44.2 m) (P=0.03). Conclusion A 600 mg bid oral NAC treatment for 1-year on COPD patients without the L allele can improve the FEV1, FEV1% predicted, the SGRQ activity score, and the result of 6-minute walking distance test, and the exacerbation rate of the L allele carrier in COPD patients is much higher than in the COPD patients without the L allele.
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Affiliation(s)
- Jia-Qiang Zhang
- The Second Department of Respiratory Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Jian-Qing Zhang
- The Second Department of Respiratory Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Li-Zhou Fang
- The Second Department of Respiratory Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Ling Liu
- The Second Department of Respiratory Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Wei-Ping Fu
- The Second Department of Respiratory Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Lu-Ming Dai
- The Second Department of Respiratory Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
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Barnes PJ, Burney PGJ, Silverman EK, Celli BR, Vestbo J, Wedzicha JA, Wouters EFM. Chronic obstructive pulmonary disease. Nat Rev Dis Primers 2015; 1:15076. [PMID: 27189863 DOI: 10.1038/nrdp.2015.76] [Citation(s) in RCA: 372] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a common disease with high global morbidity and mortality. COPD is characterized by poorly reversible airway obstruction, which is confirmed by spirometry, and includes obstruction of the small airways (chronic obstructive bronchiolitis) and emphysema, which lead to air trapping and shortness of breath in response to physical exertion. The most common risk factor for the development of COPD is cigarette smoking, but other environmental factors, such as exposure to indoor air pollutants - especially in developing countries - might influence COPD risk. Not all smokers develop COPD and the reasons for disease susceptibility in these individuals have not been fully elucidated. Although the mechanisms underlying COPD remain poorly understood, the disease is associated with chronic inflammation that is usually corticosteroid resistant. In addition, COPD involves accelerated ageing of the lungs and an abnormal repair mechanism that might be driven by oxidative stress. Acute exacerbations, which are mainly triggered by viral or bacterial infections, are important as they are linked to a poor prognosis. The mainstay of the management of stable disease is the use of inhaled long-acting bronchodilators, whereas corticosteroids are beneficial primarily in patients who have coexisting features of asthma, such as eosinophilic inflammation and more reversibility of airway obstruction. Apart from smoking cessation, no treatments reduce disease progression. More research is needed to better understand disease mechanisms and to develop new treatments that reduce disease activity and progression.
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Affiliation(s)
- Peter J Barnes
- Airway Disease Section, National Heart and Lung Institute, Imperial College, Dovehouse Street, London SW3 6LY, UK
| | - Peter G J Burney
- Division of Medical Genetics and Population Health, National Heart and Lung Institute, Imperial College, London, UK
| | - Edwin K Silverman
- Channing Division of Network Medicine and Pulmonary and Critical Care Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Bartolome R Celli
- Pulmonary and Critical Care Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jørgen Vestbo
- Centre of Respiratory Medicine and Allergy, Manchester Academic Science Centre, University Hospital South Manchester NHS Foundation Trust, Manchester, UK
| | - Jadwiga A Wedzicha
- Airway Disease Section, National Heart and Lung Institute, Imperial College, Dovehouse Street, London SW3 6LY, UK
| | - Emiel F M Wouters
- Department of Respiratory Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands
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425
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Goudis CA, Konstantinidis AK, Ntalas IV, Korantzopoulos P. Electrocardiographic abnormalities and cardiac arrhythmias in chronic obstructive pulmonary disease. Int J Cardiol 2015. [DOI: 10.1016/j.ijcard.2015.06.096] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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426
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Abstract
COPD is a common complex disease characterized by progressive airflow limitation. Several genome-wide association studies (GWASs) have discovered genes that are associated with COPD. Recently, candidate genes for COPD identified by GWASs include CHRNA3/5 (cholinergic nicotine receptor alpha 3/5), IREB2 (iron regulatory binding protein 2), HHIP (hedgehog-interacting protein), FAM13A (family with sequence similarity 13, member A), and AGER (advanced glycosylation end product–specific receptor). Their association with COPD susceptibility has been replicated in multiple populations. Since these candidate genes have not been considered in COPD, their pathological roles are still largely unknown. Herein, we review some evidences that they can be effective drug targets or serve as biomarkers for diagnosis or subtyping. However, more study is required to understand the functional roles of these candidate genes. Future research is needed to characterize the effect of genetic variants, validate gene function in humans and model systems, and elucidate the genes’ transcriptional and posttranscriptional regulatory mechanisms.
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Affiliation(s)
- Woo Jin Kim
- Department of Internal Medicine and Environmental Health Center, Kangwon National University, Chuncheon, South Korea
| | - Sang Do Lee
- Department of Pulmonary and Critical Care Medicine, Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
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427
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Tran I, Ji C, Ni I, Min T, Tang D, Vij N. Role of Cigarette Smoke-Induced Aggresome Formation in Chronic Obstructive Pulmonary Disease-Emphysema Pathogenesis. Am J Respir Cell Mol Biol 2015; 53:159-73. [PMID: 25490051 DOI: 10.1165/rcmb.2014-0107oc] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Cigarette smoke (CS) exposure is known to induce proteostasis imbalance that can initiate accumulation of ubiquitinated proteins. Therefore, the primary goal of this study was to determine if first- and secondhand CS induces localization of ubiquitinated proteins in perinuclear spaces as aggresome bodies. Furthermore, we sought to determine the mechanism by which smoke-induced aggresome formation contributes to chronic obstructive pulmonary disease (COPD)-emphysema pathogenesis. Hence, Beas2b cells were treated with CS extract (CSE) for in vitro experimental analysis of CS-induced aggresome formation by immunoblotting, microscopy, and reporter assays, whereas chronic CS-exposed murine model and human COPD-emphysema lung tissues were used for validation. In preliminary analysis, we observed a significant (P < 0.01) increase in ubiquitinated protein aggregation in the insoluble protein fraction of CSE-treated Beas2b cells. We verified that CS-induced ubiquitin aggregrates are localized in the perinuclear spaces as aggresome bodies. These CS-induced aggresomes (P < 0.001) colocalize with autophagy protein microtubule-associated protein 1 light chain-3B(+) autophagy bodies, whereas U.S. Food and Drug Administration-approved autophagy-inducing drug (carbamazepine) significantly (P < 0.01) decreases their colocalization and expression, suggesting CS-impaired autophagy. Moreover, CSE treatment significantly increases valosin-containing protein-p62 protein-protein interaction (P < 0.0005) and p62 expression (aberrant autophagy marker; P < 0.0001), verifying CS-impaired autophagy as an aggresome formation mechanism. We also found that inhibiting protein synthesis by cycloheximide does not deplete CS-induced ubiquitinated protein aggregates, suggesting the role of CS-induced protein synthesis in aggresome formation. Next, we used an emphysema murine model to verify that chronic CS significantly (P < 0.0005) induces aggresome formation. Moreover, we observed that autophagy induction by carbamazepine inhibits CS-induced aggresome formation and alveolar space enlargement (P < 0.001), confirming involvement of aggresome bodies in COPD-emphysema pathogenesis. Finally, significantly higher p62 accumulation in smokers and severe COPD-emphysema lungs (Global Initiative for Chronic Obstructive Lung Disease Stage III/IV) as compared with normal nonsmokers (Global Initiative for Chronic Obstructive Lung Disease Stage 0) substantiates the pathogenic role of autophagy impairment in aggresome formation and COPD-emphysema progression. In conclusion, CS-induced aggresome formation is a novel mechanism involved in COPD-emphysema pathogenesis.
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Affiliation(s)
- Ian Tran
- Departments of 1 Pediatric Respiratory Science and.,2 Biomedical Engineering, the Johns Hopkins University School of Medicine, Baltimore, Maryland; and
| | - Changhoon Ji
- Departments of 1 Pediatric Respiratory Science and.,2 Biomedical Engineering, the Johns Hopkins University School of Medicine, Baltimore, Maryland; and
| | - Inzer Ni
- Departments of 1 Pediatric Respiratory Science and.,2 Biomedical Engineering, the Johns Hopkins University School of Medicine, Baltimore, Maryland; and
| | - Taehong Min
- Departments of 1 Pediatric Respiratory Science and.,2 Biomedical Engineering, the Johns Hopkins University School of Medicine, Baltimore, Maryland; and
| | - Danni Tang
- Departments of 1 Pediatric Respiratory Science and.,2 Biomedical Engineering, the Johns Hopkins University School of Medicine, Baltimore, Maryland; and
| | - Neeraj Vij
- Departments of 1 Pediatric Respiratory Science and.,3 College of Medicine, Central Michigan University, Mount Pleasant, Michigan
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428
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Cazzola M, Segreti A, Capuano R, Bergamini A, Martinelli E, Calzetta L, Rogliani P, Ciaprini C, Ora J, Paolesse R, Di Natale C, D’Amico A. Analysis of exhaled breath fingerprints and volatile organic compounds in COPD. ACTA ACUST UNITED AC 2015. [DOI: 10.1186/s40749-015-0010-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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429
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Titz B, Sewer A, Schneider T, Elamin A, Martin F, Dijon S, Luettich K, Guedj E, Vuillaume G, Ivanov NV, Peck MJ, Chaudhary NI, Hoeng J, Peitsch MC. Alterations in the sputum proteome and transcriptome in smokers and early-stage COPD subjects. J Proteomics 2015; 128:306-20. [DOI: 10.1016/j.jprot.2015.08.009] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 08/15/2015] [Indexed: 12/15/2022]
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430
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Sim CS, Lee JH, Kim SH, Han MW, Kim Y, Oh I, Yun SC, Lee JC. Oxidative stress in schoolchildren with allergic rhinitis: propensity score matching case-control study. Ann Allergy Asthma Immunol 2015; 115:391-5. [PMID: 26371694 DOI: 10.1016/j.anai.2015.07.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 07/21/2015] [Accepted: 07/27/2015] [Indexed: 01/01/2023]
Abstract
BACKGROUND Oxidative stress is defined as an imbalance between the level of reactive oxygen species and antioxidant mechanisms. Compared with asthma, the role of oxidative stress in allergic rhinitis (AR) has received little attention. OBJECTIVE To investigate the association between overall systemic oxidative stress and AR. METHODS We used a propensity score matching case-control study and selected 90 children who had experienced AR in the previous year. This AR group was then matched with 90 healthy children who comprised the control group. Propensity score matching, a statistical matching technique that accounts for the conditional probability of receiving an exposure given a vector of measured covariates, is used to reduce selection bias and potential confounders in observational study. Serum total antioxidant status (TAS) and total oxidant status (TOS) levels were determined using a commercially available assay kit. Medical records and personal information were also reviewed. RESULTS No statistically significant differences were found between patients with regard to age, sex, height, weight, educational level of parent, monthly household income, or distance of home from a main road. The mean TAS and TOS levels in the patient group were significantly higher than those of the control group (P = .03 and .048, respectively). The oxidative stress index, which is defined as the ratio of TOS to TAS, also increased in the AR group with statistical propensity (P = .08). In a multivariate logistic analysis, only TAS and TOS levels were significantly associated with increased risk of allergic rhinitis. CONCLUSION Patients with AR have systemically elevated oxidative stress and systemically elevated TAS levels.
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Affiliation(s)
- Chang Sun Sim
- Department of Occupational and Environmental Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea; Environmental Health Center, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Ji-Ho Lee
- Department of Occupational and Environmental Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea; Environmental Health Center, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Song Hee Kim
- Department of Otorhinolaryngology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea; Biomedical Research Center, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Myung Woul Han
- Department of Otorhinolaryngology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea; Biomedical Research Center, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Yangho Kim
- Department of Occupational and Environmental Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea; Environmental Health Center, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Inbo Oh
- Environmental Health Center, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Sung-Cheol Yun
- Department of Clinical Epidemiology and Biostatistics and Department of Environmental Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jong Cheol Lee
- Department of Otorhinolaryngology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea; Biomedical Research Center, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea.
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431
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Targeting oxidant-dependent mechanisms for the treatment of COPD and its comorbidities. Pharmacol Ther 2015; 155:60-79. [PMID: 26297673 DOI: 10.1016/j.pharmthera.2015.08.005] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 08/14/2015] [Indexed: 12/30/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is an incurable global health burden and is characterised by progressive airflow limitation and loss of lung function. In addition to the pulmonary impact of the disease, COPD patients often develop comorbid diseases such as cardiovascular disease, skeletal muscle wasting, lung cancer and osteoporosis. One key feature of COPD, yet often underappreciated, is the contribution of oxidative stress in the onset and development of the disease. Patients experience an increased burden of oxidative stress due to the combined effects of excess reactive oxygen species (ROS) and nitrogen species (RNS) generation, antioxidant depletion and reduced antioxidant enzyme activity. Currently, there is a lack of effective treatments for COPD, and an even greater lack of research regarding interventions that treat both COPD and its comorbidities. Due to the involvement of oxidative stress in the pathogenesis of COPD and many of its comorbidities, a unique therapeutic opportunity arises where the treatment of a multitude of diseases may be possible with only one therapeutic target. In this review, oxidative stress and the roles of ROS/RNS in the context of COPD and comorbid cardiovascular disease, skeletal muscle wasting, lung cancer, and osteoporosis are discussed and the potential for therapeutic benefit of anti-oxidative treatment in these conditions is outlined. Because of the unique interplay between oxidative stress and these diseases, oxidative stress represents a novel target for the treatment of COPD and its comorbidities.
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432
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Aydin M, Altintas N, Cem Mutlu L, Bilir B, Oran M, Tülübaş F, Topçu B, Tayfur İ, Küçükyalçin V, Kaplan G, Gürel A. Asymmetric dimethylarginine contributes to airway nitric oxide deficiency in patients with COPD. CLINICAL RESPIRATORY JOURNAL 2015; 11:318-327. [PMID: 26076870 DOI: 10.1111/crj.12337] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 05/17/2015] [Accepted: 06/12/2015] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Asymmetric dimethylarginine (ADMA) and nitric oxide (NO) show their mechanism of action reciprocally, the balance between these molecules contributes to the tight regulation of airways tone and function. OBJECTIVES The aim of this study to determine the serum levels of ADMA and NO in patients with chronic obstructive pulmonary disease (COPD) and establish whether their level vary in relation to forced expiratory volume in 1s (FEV1 ), to assess their role in pathophysiology of COPD. MATERIALS AND METHODS This study consisted of 58 patients with COPD and 30 healthy subjects. Serum ADMA and NO levels were measured using enzyme-linked immunosorbent assay and the colorimetric method, respectively. RESULTS Serum ADMA levels were significantly higher, however, NO levels were lower in patients with COPD compared with controls. ADMA levels were inversely correlated with NO levels. Serum ADMA and NO were significantly correlated with FEV1 . Multivariable logistic regression analysis revealed that serum ADMA and NO were independently and significantly associated with the presence of COPD. Multiple linear regression analysis showed that COPD was positively associated with ADMA, additionally COPD and ADMA were independently and inversely associated with NO. NO levels were decreased, ADMA levels were increased compliant with progression of COPD stages. CONCLUSION While circulating ADMA is higher, NO is lower in COPD and both show a strong correlation to the degree of airflow limitation. ADMA seems to be a possible new marker of prognosis of COPD and can be a novel therapeutic target for the treatment of COPD.
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Affiliation(s)
- Murat Aydin
- Department of Biochemistry, School of Medicine, Namik Kemal University, Tekirdağ, Turkey
| | - Nejat Altintas
- Department of Pulmonary and Sleep Medicine, School of Medicine, Namik Kemal University, Tekirdağ, Turkey
| | - Levent Cem Mutlu
- Department of Pulmonary and Sleep Medicine, School of Medicine, Namik Kemal University, Tekirdağ, Turkey
| | - Bulent Bilir
- Department of Internal Medicine, School of Medicine, Namik Kemal University, Tekirdağ, Turkey
| | - Mustafa Oran
- Department of Internal Medicine, School of Medicine, Namik Kemal University, Tekirdağ, Turkey
| | - Feti Tülübaş
- Department of Biochemistry, School of Medicine, Namik Kemal University, Tekirdağ, Turkey
| | - Birol Topçu
- Department of Biostatistics, School of Medicine, Namik Kemal University, Tekirdağ, Turkey
| | - İsmail Tayfur
- Department of Biochemistry, School of Medicine, Namik Kemal University, Tekirdağ, Turkey
| | - Volkan Küçükyalçin
- Department of Biochemistry, School of Medicine, Namik Kemal University, Tekirdağ, Turkey
| | - Gizem Kaplan
- Department of Pulmonary and Sleep Medicine, School of Medicine, Namik Kemal University, Tekirdağ, Turkey
| | - Ahmet Gürel
- Department of Biochemistry, School of Medicine, Namik Kemal University, Tekirdağ, Turkey
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433
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Silva R, Oyarzún M, Olloquequi J. Pathogenic Mechanisms in Chronic Obstructive Pulmonary Disease Due to Biomass Smoke Exposure. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.arbr.2015.04.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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434
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Morita K, Masuda N, Oniki K, Saruwatari J, Kajiwara A, Otake K, Ogata Y, Nakagawa K. Association between the aldehyde dehydrogenase 2*2 allele and smoking-related chronic airway obstruction in a Japanese general population: a pilot study. Toxicol Lett 2015; 236:117-22. [PMID: 25978981 DOI: 10.1016/j.toxlet.2015.05.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 05/05/2015] [Accepted: 05/08/2015] [Indexed: 11/30/2022]
Abstract
Aldehyde dehydrogenase 2 (ALDH2) detoxifies exogenous and endogenous toxic aldehydes; however, its protective effect against cigarette smoke in airways is unknown. We therefore examined whether the inactive ALDH2*2 allele is associated with smoking-related chronic airway obstruction. We conducted a cross-sectional study including 684 Japanese participants in a health screening program, and a retrospective longitudinal study in the elderly subgroup. The risks of airway obstruction in the ever-smokers with the ALDH2*1/*2 and *2/*2 genotypes were two and three times higher, respectively, than in the never-smokers with the ALDH2*1/*1 genotype. Moreover, the combined effect of smoking and the ALDH2*2 allele was prominent in the asthmatic subjects. In a longitudinal association analysis, the combination of the ALDH2 genotype and pack-years of smoking synergistically increased the risk of airway obstruction. The number of pack-years of smoking at baseline was identified to be a significant predictor of airway obstruction only in the ALDH2*2 allele carriers. In addition, the ALDH2*2 allele was also associated with the incidence of smoking-related airway obstruction, in the Cox proportional hazards model. This pilot study demonstrated for the first time a significant gene-environment interaction between the ALDH2*2 allele and cumulative exposure to cigarette smoke on the risk of airway obstruction.
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Affiliation(s)
- Kazunori Morita
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Natsuki Masuda
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Kentaro Oniki
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Junji Saruwatari
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Ayami Kajiwara
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Koji Otake
- Japanese Red Cross Kumamoto Health Care Center, Kumamoto, Japan
| | - Yasuhiro Ogata
- Japanese Red Cross Kumamoto Health Care Center, Kumamoto, Japan
| | - Kazuko Nakagawa
- Division of Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan; Center for Clinical Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan.
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435
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Li J. Environmental fine particular matter and airway epithelium cell stress. CURRENT PULMONOLOGY REPORTS 2015. [DOI: 10.1007/s13665-015-0116-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
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436
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Tabata C, Tabata R, Takahashi Y, Nakamura K, Nakano T. Thalidomide prevents cigarette smoke extract-induced lung damage in mice. Int Immunopharmacol 2015; 25:511-7. [PMID: 25749497 DOI: 10.1016/j.intimp.2015.02.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 02/20/2015] [Accepted: 02/23/2015] [Indexed: 12/21/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is characterized by a progressive airway obstruction that is not completely reversible and is mainly caused by smoking tobacco. COPD is a major cause of morbidity and mortality worldwide and there are currently no proven effective treatments. The pathogenesis of COPD involves several factors such as chronic inflammation, oxidative stress, and apoptosis. Cytokines play important roles in chronic inflammation. Thalidomide (Thal) has been used to treat multiple myeloma due to its inhibitory effects on IL-6-induced cell growth. We recently demonstrated that thalidomide (Thal) played important roles in cytokine-induced lung damage in a bleomycin-induced pulmonary fibrosis model in mice. We herein examined the preventative effects of Thal on cigarette smoke extract (CSE)-induced emphysematous changes in mice. We performed histological examinations and quantitative measurements of the expression of IL-1β and IL-6 mRNA, as well as apoptosis in CSE-induced mouse lung tissues treated with or without Thal. The results of the histological examination showed that Thal ameliorated CSE-induced emphysema in mice. It also inhibited the expression of IL-1β and IL-6 mRNA in mouse lung tissues. Thal decreased apoptosis in the mouse lung. In vitro studies revealed that Thal decreased 1) the expression of IL-1β and IL-6 in human lung epithelial cells, and 2) CSE-induced apoptosis and the inhibition of cell growth, which may be the underlying mechanisms for the preventative effects of Thal on emphysema. These results provide a rationale for exploring the clinical use of Thal for COPD.
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Affiliation(s)
| | - Rie Tabata
- Department of Internal Medicine, Hyogo Prefectural Tsukaguchi Hospital, Japan
| | - Yuta Takahashi
- Department of Pharmacology 1, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo, Japan
| | - Kazuki Nakamura
- Department of Pharmacology 1, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo, Japan
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437
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Heulens N, Korf H, Janssens W. Innate immune modulation in chronic obstructive pulmonary disease: moving closer toward vitamin D therapy. J Pharmacol Exp Ther 2015; 353:360-8. [PMID: 25755208 DOI: 10.1124/jpet.115.223032] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is one of the most common respiratory diseases and a major cause of morbidity and mortality worldwide. Disturbed innate immune processes characterize the pathogenesis of COPD. Vitamin D deficiency is very common in COPD patients and has been associated with disease severity. Interestingly, mechanistic evidence from animal and in vitro studies has demonstrated important innate immunomodulatory functions of vitamin D, including anti-inflammatory, antioxidative, and antimicrobial functions. This review discusses in detail how the innate immunomodulatory functions of vitamin D may have therapeutic potential in COPD patients. The remaining challenges associated with vitamin D therapy in COPD patients are also discussed.
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Affiliation(s)
- Nele Heulens
- Laboratory of Respiratory Diseases (N.H., W.J.) and Laboratory of Clinical and Experimental Endocrinology (H.K.), Department of Clinical and Experimental Medicine, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Hannelie Korf
- Laboratory of Respiratory Diseases (N.H., W.J.) and Laboratory of Clinical and Experimental Endocrinology (H.K.), Department of Clinical and Experimental Medicine, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Wim Janssens
- Laboratory of Respiratory Diseases (N.H., W.J.) and Laboratory of Clinical and Experimental Endocrinology (H.K.), Department of Clinical and Experimental Medicine, Katholieke Universiteit Leuven, Leuven, Belgium
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438
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Enhancement of the acrolein-induced production of reactive oxygen species and lung injury by GADD34. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:170309. [PMID: 25821552 PMCID: PMC4364366 DOI: 10.1155/2015/170309] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 01/28/2015] [Accepted: 01/28/2015] [Indexed: 12/20/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is characterized by lung destruction and inflammation. As a major compound of cigarette smoke, acrolein plays a critical role in the induction of respiratory diseases. GADD34 is known as a growth arrest and DNA damage-related gene, which can be overexpressed in adverse environmental conditions. Here we investigated the effects of GADD34 on acrolein-induced lung injury. The intranasal exposure of acrolein induced the expression of GADD34, developing the pulmonary damage with inflammation and increase of reactive oxygen species (ROS). Conversely, the integrality of pulmonary structure was preserved and the generation of ROS was reduced in GADD34-knockout mice. Acrolein-induced phosphorylation of eIF2α in GADD34-knockout epithelial cells by shRNA protected cell death by reducing misfolded protein-caused oxidative stress. These data indicate that GADD34 participates in the development of acrolein-induced lung injury.
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439
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Association of Functional Variants of Phase I and II Genes with Chronic Obstructive Pulmonary Disease in a Serbian Population. J Med Biochem 2015; 34:207-214. [PMID: 28356833 PMCID: PMC4922330 DOI: 10.2478/jomb-2014-0024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Accepted: 12/20/2013] [Indexed: 12/21/2022] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) is a complex disorder characterized by increased oxidative stress. Functional genetic variants of phase I and II genes are implicated in oxidants–antioxidants imbalance and may be involved in COPD development. In this study, we aimed to investigate the role of cytochrome P450 (CYP), glutathione S-transferase (GST) and microsomal epoxide hydrolase (mEH) functional variants in the pathogenesis of COPD in a Serbian population. Methods The genotypes of 122 COPD patients and 100 controls with normal lung function were determined for CYP1A1 *1A/*2A, CYP2E1 *1A/*5B, GSTM1 null, GSTT1 null GSTP1 Ile105Val, mEH Tyr113His and mEH His139Arg gene variants. Results Results obtained showed that GSTM1 null variant was significantly more represented in COPD patients than in controls (61.5% vs. 47.0%; OR=1.80; p=0.042). Also, a significant difference was observed for combinations of GSTM1 null and GSTP1 105Val/(Val) (38.5% vs. 24.0%; OR=1.98; p=0.029), as well as for CYP1A1 *1A/*2A, GSTM1 null and mEH 113His/(His) genotypes (7.4% vs. 1.0%; OR=7.88; p=0.025). Conclusions These are the first data concerning the analysis of the variants of phase I and II genes in the pathogenesis of COPD in a Serbian population. Results obtained in this study open up the possibility for thorough analyses of the role of genetic factors in COPD on larger cohorts. Also, they implicate the importance of previously described genetic associations with COPD in our population, as well as reveal a new one, not reported so far.
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440
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Zuo L, Best TM, Roberts WJ, Diaz PT, Wagner PD. Characterization of reactive oxygen species in diaphragm. Acta Physiol (Oxf) 2015; 213:700-10. [PMID: 25330121 DOI: 10.1111/apha.12410] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 07/19/2014] [Accepted: 10/16/2014] [Indexed: 12/17/2022]
Abstract
Reactive oxygen species (ROS) exist as natural mediators of metabolism to maintain cellular homeostasis. However, ROS production may significantly increase in response to environmental stressors, resulting in extensive cellular damage. Although several potential sources of increased ROS have been proposed, exact mechanisms of their generation have not been completely elucidated. This is particularly true for diaphragmatic skeletal muscle, the key muscle used for respiration. Several experimental models have focused on detection of ROS generation in rodent diaphragm tissue under stressful conditions, including hypoxia, exercise, and heat, as well as ROS formation in single myofibres. Identification methods include direct detection of ROS with confocal or fluorescent microscopy and indirect detection of ROS through end product analysis. This article explores implications of ROS generation and oxidative stress, and also evaluates potential mechanisms of cellular ROS formation in diaphragmatic skeletal muscle.
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Affiliation(s)
- L. Zuo
- Radiologic Sciences and Respiratory Therapy Division; School of Health and Rehabilitation Sciences; The Ohio State University College of Medicine; The Ohio State University Wexner Medical Center; Columbus OH USA
| | - T. M. Best
- Division of Sports Medicine; Department of Family Medicine Sports Health and Performance Institute; The Ohio State University; Columbus OH USA
| | - W. J. Roberts
- Radiologic Sciences and Respiratory Therapy Division; School of Health and Rehabilitation Sciences; The Ohio State University College of Medicine; The Ohio State University Wexner Medical Center; Columbus OH USA
| | - P. T. Diaz
- Division of Pulmonary, Allergy, Critical Care & Sleep Medicine; The Ohio State University Wexner Medical Center; Columbus OH USA
| | - P. D. Wagner
- Department of Medicine; University of California, San Diego; La Jolla CA USA
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441
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Abstract
Chronic obstructive pulmonary disease (COPD) is one of the most common chronic illnesses in the world. The disease encompasses emphysema, chronic bronchitis, and small airway obstruction and can be caused by environmental exposures, primarily cigarette smoking. Since only a small subset of smokers develop COPD, it is believed that host factors interact with the environment to increase the propensity to develop disease. The major pathogenic factors causing disease include infection and inflammation, protease and antiprotease imbalance, and oxidative stress overwhelming antioxidant defenses. In this review, we will discuss the major environmental and host sources for oxidative stress; discuss how oxidative stress regulates chronic bronchitis; review the latest information on genetic predisposition to COPD, specifically focusing on oxidant/antioxidant imbalance; and review future antioxidant therapeutic options for COPD. The complexity of COPD will necessitate a multi-target therapeutic approach. It is likely that antioxidant supplementation and dietary antioxidants will have a place in these future combination therapies.
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Affiliation(s)
- Bernard M Fischer
- Department of Pediatrics, Duke University Medical Center, Durham, NC, USA
| | - Judith A Voynow
- Department of Pediatrics, Children’s Hospital of Richmond at Virginia Commonwealth University, Richmond, VA, USA
| | - Andrew J Ghio
- National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, Chapel Hill, NC, USA
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442
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Abstract
In ageing populations many patients have multiple diseases characterised by acceleration of the normal ageing process. Better understanding of the signalling pathways and cellular events involved in ageing shows that these are characteristic of many chronic degenerative diseases, such as chronic obstructive pulmonary disease (COPD), chronic cardiovascular and metabolic diseases, and neurodegeneration. Common mechanisms have now been identified in these diseases, which show evidence of cellular senescence with telomere shortening, activation of PI3K–AKT–mTOR signalling, impaired autophagy, mitochondrial dysfunction, stem cell exhaustion, epigenetic changes, abnormal microRNA profiles, immunosenescence and low grade chronic inflammation (“inflammaging”). Many of these pathways are driven by chronic oxidative stress. There is also a reduction in anti-ageing molecules, such as sirtuins and Klotho, which further accelerates the ageing process. Understanding these molecular mechanisms has identified several novel therapeutic targets and several drugs have already been developed that may slow the ageing process, as well as lifestyle interventions, such as diet and physical activity. This indicates that in the future new treatment approaches may target the common pathways involved in multimorbidity and this area of research should be given high priority. Thus, COPD should be considered as a component of multimorbidity and common disease pathways, particularly accelerated ageing, should be targeted.
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443
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Silva R, Oyarzún M, Olloquequi J. Pathogenic mechanisms in chronic obstructive pulmonary disease due to biomass smoke exposure. Arch Bronconeumol 2015; 51:285-92. [PMID: 25614376 DOI: 10.1016/j.arbres.2014.10.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 10/12/2014] [Accepted: 10/14/2014] [Indexed: 12/31/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) mortality and morbidity have increased significantly worldwide in recent decades. Although cigarette smoke is still considered the main risk factor for the development of the disease, estimates suggest that between 25% and 33% of COPD patients are non-smokers. Among the factors that may increase the risk of developing COPD, biomass smoke has been proposed as one of the most important, affecting especially women and children in developing countries. Despite the epidemiological evidence linking exposure to biomass smoke with adverse health effects, the specific cellular and molecular mechanisms by which this pollutant can be harmful for the respiratory and cardiovascular systems remain unclear. In this article we review the main pathogenic mechanisms proposed to date that make biomass smoke one of the major risk factors for COPD.
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Affiliation(s)
- Rafael Silva
- Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca, Chile
| | - Manuel Oyarzún
- Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Jordi Olloquequi
- Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca, Chile.
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444
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Caramori G, Kirkham P, Barczyk A, Di Stefano A, Adcock I. Molecular pathogenesis of cigarette smoking-induced stable COPD. Ann N Y Acad Sci 2015; 1340:55-64. [PMID: 25639503 DOI: 10.1111/nyas.12619] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inflammation is a central feature of stable chronic obstructive pulmonary disease (COPD) and involves both activation of structural cells of the airways and the lungs and the activation and/or recruitment of infiltrating inflammatory cells. This results in enhanced expression of many pro-inflammatory proteins and reduced expression of some anti-inflammatory mediators. An altered protein expression is generally associated with concomitant changes in gene expression profiles in a cell-specific manner. Increased understanding of the role of transcription factors and of the signaling pathways leading to their activation in stable COPD will provide new targets to enable the development of potential anti-inflammatory drugs. Several new compounds targeting these pathways and/or transcription factors are now in development for the treatment of stable COPD. Furthermore, glucocorticoids drugs already in clinical use act through their own transcription factor, the glucocorticoid receptor, to control the expression of inflammatory and anti-inflammatory genes.
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Affiliation(s)
- Gaetano Caramori
- Centro Interdipartimentale per lo Studio delle Malattie Infiammatorie delle Vie Aeree e Patologie Fumo-correlate (CEMICEF), Sezione di Medicina Interna e Cardiorespiratoria, Università di Ferrara, Ferrara, Italy
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445
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Gomez-Cabrero D, Menche J, Cano I, Abugessaisa I, Huertas-Migueláñez M, Tenyi A, Marin de Mas I, Kiani NA, Marabita F, Falciani F, Burrowes K, Maier D, Wagner P, Selivanov V, Cascante M, Roca J, Barabási AL, Tegnér J. Systems Medicine: from molecular features and models to the clinic in COPD. J Transl Med 2014; 12 Suppl 2:S4. [PMID: 25471042 PMCID: PMC4255907 DOI: 10.1186/1479-5876-12-s2-s4] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background and hypothesis Chronic Obstructive Pulmonary Disease (COPD) patients are characterized by heterogeneous clinical manifestations and patterns of disease progression. Two major factors that can be used to identify COPD subtypes are muscle dysfunction/wasting and co-morbidity patterns. We hypothesized that COPD heterogeneity is in part the result of complex interactions between several genes and pathways. We explored the possibility of using a Systems Medicine approach to identify such pathways, as well as to generate predictive computational models that may be used in clinic practice. Objective and method Our overarching goal is to generate clinically applicable predictive models that characterize COPD heterogeneity through a Systems Medicine approach. To this end we have developed a general framework, consisting of three steps/objectives: (1) feature identification, (2) model generation and statistical validation, and (3) application and validation of the predictive models in the clinical scenario. We used muscle dysfunction and co-morbidity as test cases for this framework. Results In the study of muscle wasting we identified relevant features (genes) by a network analysis and generated predictive models that integrate mechanistic and probabilistic models. This allowed us to characterize muscle wasting as a general de-regulation of pathway interactions. In the co-morbidity analysis we identified relevant features (genes/pathways) by the integration of gene-disease and disease-disease associations. We further present a detailed characterization of co-morbidities in COPD patients that was implemented into a predictive model. In both use cases we were able to achieve predictive modeling but we also identified several key challenges, the most pressing being the validation and implementation into actual clinical practice. Conclusions The results confirm the potential of the Systems Medicine approach to study complex diseases and generate clinically relevant predictive models. Our study also highlights important obstacles and bottlenecks for such approaches (e.g. data availability and normalization of frameworks among others) and suggests specific proposals to overcome them.
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446
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Trocme C, Deffert C, Cachat J, Donati Y, Tissot C, Papacatzis S, Braunersreuther V, Pache JC, Krause KH, Holmdahl R, Barazzone-Argiroffo C, Carnesecchi S. Macrophage-specific NOX2 contributes to the development of lung emphysema through modulation of SIRT1/MMP-9 pathways. J Pathol 2014; 235:65-78. [PMID: 25116588 PMCID: PMC4280678 DOI: 10.1002/path.4423] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 08/05/2014] [Accepted: 08/05/2014] [Indexed: 12/19/2022]
Abstract
Reactive oxygen species (ROS) participate in the pathogenesis of emphysema. Among ROS-producing enzymes, NOX NADPH oxidases are thought to be responsible for tissue injury associated with several lung pathologies. To determine whether NOX2 and/or NOX1 participate in the development of emphysema, their expression patterns were first studied by immunohistochemistry in the lungs of emphysematous patients. Subsequently, we investigated their contribution to elastase-induced emphysema using NOX2- and NOX1-deficient mice. In human lung, NOX2 was mainly detected in macrophages of control and emphysematous lungs, while NOX1 was expressed in alveolar epithelium and bronchial cells. We observed an elevated number of NOX2-positive cells in human emphysematous lungs, as well as increased NOX2 and NOX1 mRNA expression in mouse lungs following elastase exposure. Elastase-induced alveolar airspace enlargement and elastin degradation were prevented in NOX2-deficient mice, but not in NOX1-deficient mice. This protection was independent of inflammation and correlated with reduced ROS production. Concomitantly, an elevation of sirtuin 1 (SIRT1) level and a decrease of matrix metalloproteinase-9 (MMP-9) expression and activity were observed in alveolar macrophages and neutrophils. We addressed the specific role of macrophage-restricted functional NOX2 in elastase-induced lung emphysema using Ncf1 mutant mice and Ncf1 macrophage rescue mice (Ncf1 mutant mice with transgenic expression of Ncf1 only in CD68-positive mononuclear phagocytes; the MN mouse). Compared to WT mice, the lack of functional NOX2 led to decreased elastase-induced ROS production and protected against emphysema. In contrast, ROS production was restored specifically in macrophages from Ncf1 rescue mice and contributes to emphysema. Taken together, our results demonstrate that NOX2 is involved in the pathogenesis of human emphysema and macrophage-specific NOX2 participates in elastase-induced emphysema through the involvement of SIRT1/MMP-9 pathways in mice.
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Affiliation(s)
- Candice Trocme
- Laboratory of Protein and Enzyme Biochemistry, University Hospital, Grenoble, France
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447
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Reverri EJ, Morrissey BM, Cross CE, Steinberg FM. Inflammation, oxidative stress, and cardiovascular disease risk factors in adults with cystic fibrosis. Free Radic Biol Med 2014; 76:261-77. [PMID: 25172163 DOI: 10.1016/j.freeradbiomed.2014.08.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 07/31/2014] [Accepted: 08/05/2014] [Indexed: 12/21/2022]
Abstract
Cystic fibrosis (CF) represents one of a number of localized lung and non-lung diseases with an intense chronic inflammatory component associated with evidence of systemic oxidative stress. Many of these chronic inflammatory diseases are accompanied by an array of atherosclerotic processes and cardiovascular disease (CVD), another condition strongly related to inflammation and oxidative stress. As a consequence of a dramatic increase in long-lived patients with CF in recent decades, the specter of CVD must be considered in these patients who are now reaching middle age and beyond. Buttressed by recent data documenting that CF patients exhibit evidence of endothelial dysfunction, a recognized precursor of atherosclerosis and CVD, the spectrum of risk factors for CVD in CF is reviewed here. Epidemiological data further characterizing the presence and extent of atherogenic processes in CF patients would seem important to obtain. Such studies should further inform and offer mechanistic insights into how other chronic inflammatory diseases potentiate the processes leading to CVDs.
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Affiliation(s)
- Elizabeth J Reverri
- Department of Nutrition, University of California Davis, One Shields Avenue, 3135 Meyer Hall, Davis, CA 95616, USA
| | - Brian M Morrissey
- Adult Cystic Fibrosis Clinic and Division of Pulmonary-Critical Care Medicine, University of California Davis Medical Center, 4150 V Street, Sacramento, CA 95817, USA
| | - Carroll E Cross
- Adult Cystic Fibrosis Clinic and Division of Pulmonary-Critical Care Medicine, University of California Davis Medical Center, 4150 V Street, Sacramento, CA 95817, USA.
| | - Francene M Steinberg
- Department of Nutrition, University of California Davis, One Shields Avenue, 3135 Meyer Hall, Davis, CA 95616, USA
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448
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449
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Domej W, Oettl K, Renner W. Oxidative stress and free radicals in COPD--implications and relevance for treatment. Int J Chron Obstruct Pulmon Dis 2014; 9:1207-24. [PMID: 25378921 PMCID: PMC4207545 DOI: 10.2147/copd.s51226] [Citation(s) in RCA: 192] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Oxidative stress occurs when free radicals and other reactive species overwhelm the availability of antioxidants. Reactive oxygen species (ROS), reactive nitrogen species, and their counterpart antioxidant agents are essential for physiological signaling and host defense, as well as for the evolution and persistence of inflammation. When their normal steady state is disturbed, imbalances between oxidants and antioxidants may provoke pathological reactions causing a range of nonrespiratory and respiratory diseases, particularly chronic obstructive pulmonary disease (COPD). In the respiratory system, ROS may be either exogenous from more or less inhalative gaseous or particulate agents such as air pollutants, cigarette smoke, ambient high-altitude hypoxia, and some occupational dusts, or endogenously generated in the context of defense mechanisms against such infectious pathogens as bacteria, viruses, or fungi. ROS may also damage body tissues depending on the amount and duration of exposure and may further act as triggers for enzymatically generated ROS released from respiratory, immune, and inflammatory cells. This paper focuses on the general relevance of free radicals for the development and progression of both COPD and pulmonary emphysema as well as novel perspectives on therapeutic options. Unfortunately, current treatment options do not suffice to prevent chronic airway inflammation and are not yet able to substantially alter the course of COPD. Effective therapeutic antioxidant measures are urgently needed to control and mitigate local as well as systemic oxygen bursts in COPD and other respiratory diseases. In addition to current therapeutic prospects and aspects of genomic medicine, trending research topics in COPD are presented.
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Affiliation(s)
- Wolfgang Domej
- Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Karl Oettl
- Institute of Physiological Chemistry, Medical University of Graz, Graz, Austria
| | - Wilfried Renner
- Clinical Institute of Medical and Chemical Diagnostics, Medical University of Graz, Graz, Austria
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450
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Buljubasic F, Buchbauer G. The scent of human diseases: a review on specific volatile organic compounds as diagnostic biomarkers. FLAVOUR FRAG J 2014. [DOI: 10.1002/ffj.3219] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Fanis Buljubasic
- General Hospital Mannheim, Department of Internal Medicine, Division of Pulmonology; University of Heidelberg; Germany
| | - Gerhard Buchbauer
- General Hospital Mannheim, Department of Internal Medicine, Division of Pulmonology; University of Heidelberg; Germany
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