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Cui Y, Gutierrez S, Ariai S, Öberg L, Thörn K, Gehrmann U, Cloonan SM, Naessens T, Olsson H. Non-heme iron overload impairs monocyte to macrophage differentiation via mitochondrial oxidative stress. Front Immunol 2022; 13:998059. [PMID: 36341326 PMCID: PMC9634638 DOI: 10.3389/fimmu.2022.998059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 10/05/2022] [Indexed: 11/17/2022] Open
Abstract
Iron is a key element for systemic oxygen delivery and cellular energy metabolism. Thus regulation of systemic and local iron metabolism is key for maintaining energy homeostasis. Significant changes in iron levels due to malnutrition or hemorrhage, have been associated with several diseases such as hemochromatosis, liver cirrhosis and COPD. Macrophages are key cells in regulating iron levels in tissues as they sequester excess iron. How iron overload affects macrophage differentiation and function remains a subject of debate. Here we used an in vitro model of monocyte-to-macrophage differentiation to study the effect of iron overload on macrophage function. We found that providing excess iron as soluble ferric ammonium citrate (FAC) rather than as heme-iron complexes derived from stressed red blood cells (sRBC) interferes with macrophage differentiation and phagocytosis. Impaired macrophage differentiation coincided with increased expression of oxidative stress-related genes. Addition of FAC also led to increased levels of cellular and mitochondrial reactive oxygen species (ROS) and interfered with mitochondrial function and ATP generation. The effects of iron overload were reproduced by the mitochondrial ROS-inducer rotenone while treatment with the ROS-scavenger N-Acetylcysteine partially reversed FAC-induced effects. Finally, we found that iron-induced oxidative stress interfered with upregulation of M-CSFR and MAFB, two crucial determinants of macrophage differentiation and function. In summary, our findings suggest that high levels of non-heme iron interfere with macrophage differentiation by inducing mitochondrial oxidative stress. These findings might be important to consider in the context of diseases like chronic obstructive pulmonary disease (COPD) where both iron overload and defective macrophage function have been suggested to play a role in disease pathogenesis.
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Affiliation(s)
- Yue Cui
- Translational Science & Experimental Medicine, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
- *Correspondence: Yue Cui, ; Saray Gutierrez,
| | - Saray Gutierrez
- Bioscience Cardiovascular, Early Cardiovascular, Renal and Metabolism (CVRM), BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
- *Correspondence: Yue Cui, ; Saray Gutierrez,
| | - Sheller Ariai
- Early Product Development, Pharmaceutical Sciences, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Lisa Öberg
- Translational Science & Experimental Medicine, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Kristofer Thörn
- Translational Science & Experimental Medicine, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Ulf Gehrmann
- Translational Science & Experimental Medicine, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Suzanne M. Cloonan
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, NY, United States
- School of Medicine, Trinity Biomedical Sciences Institute and Tallaght University Hospital, Trinity College Dublin, Dublin, Ireland
| | - Thomas Naessens
- Bioscience Cough & In vivo, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Henric Olsson
- Translational Science & Experimental Medicine, Research and Early Development, Respiratory & Immunology, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
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Role of Long Noncoding RNAs in Smoking-Induced Lung Cancer: An In Silico Study. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:7169353. [PMID: 35529255 PMCID: PMC9070410 DOI: 10.1155/2022/7169353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 03/13/2022] [Accepted: 04/05/2022] [Indexed: 11/17/2022]
Abstract
The prevalence of lung cancer induced by cigarette smoking has increased over time. Long noncoding (lnc) RNAs, regulatory factors that play a role in human diseases, are commonly dysregulated in lung cancer. Cigarette smoking is closely related to changes in lncRNA expression, which can affect lung cancer. Herein, we assess the mechanism of lung cancer initiation induced by smoking. To calculate the impact of smoking on the survival of patients with lung cancer, we extracted data from The Cancer Genome Atlas and Gene Expression Omnibus databases and identified the differentially expressed genes in the lung cancer tissue compared to the normal lung tissue. Genes positively and negatively associated with smoking were identified. Gene Ontology, Kyoto Encyclopedia of Genes and Genomes, and Cytoscape analyses were performed to determine the function of the genes and the effects of smoking on the immune microenvironment. lncRNAs corresponding to smoking-associated genes were identified, and a smoking-related lncRNA model was constructed using univariate and multivariate Cox analyses. This model was used to assess the survival of and potential risk in patients who smoked. During screening, 562 differentially expressed genes were identified, and we elucidated that smoking affected the survival of patients 4.5 years after the diagnosis of lung cancer. Furthermore, genes negatively associated with smoking were closely associated with immunity. Twelve immune cell types were also found to infiltrate differentially in smokers and nonsmokers. Thus, the smoking-associated lncRNA model is a good predictor of survival and risk in smokers and may be used as an independent prognostic factor for lung cancer.
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3
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Fan D, Zheng C, Wu W, Chen Y, Chen D, Hu X, Shen C, Chen M, Li R, Chen Y. MMP9 SNP and MMP SNP-SNP interactions increase the risk for ischemic stroke in the Han Hakka population. Brain Behav 2022; 12:e2473. [PMID: 34984852 PMCID: PMC8865147 DOI: 10.1002/brb3.2473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/06/2021] [Accepted: 12/13/2021] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVES To investigate the association of eight variants of four matrix metalloproteinase (MMP) genes with ischemic stroke (IS) and whether interactions among these single nucleotide polymorphisms (SNPs) increases the risk of IS. METHODS Among 547 patients with ischemic stroke and 350 controls, matrix-assisted laser desorption/ionization time of flight mass spectrometry was used to examine eight variants arising from four different genes, including MMP-1 (rs1799750), MMP-2 (rs243865, rs2285053, rs2241145), MMP-9 (rs17576), and MMP-12 (rs660599, rs2276109, and rs652438). Gene-gene interactions were employed using generalized multifactor dimensionality reduction (GMDR) methods. RESULTS The frequency of rs17576 was significantly higher in IS patients than in controls (p = .033). Logistic regression analysis revealed the AG and GG genotypes of rs17576 to be associated with a higher risk for IS, with the odds ratio and 95% confidence interval being 2.490 (1.251-4.959) and 2.494 (1.274-4.886), respectively. GMDR analysis showed a significant SNP-SNP interaction between rs17576 and rs660599 (the testing balanced accuracy was 53.70% and cross-validation consistency was 8/10, p = .0107). Logistic regression analysis showed the interaction between rs17576 and rs660599 to be an independent risk factor for IS with an odds ratio of 1.568 and a 95% confidence interval of 1.152-2.135. CONCLUSION An MMP-9 rs17576 polymorphism is associated with increased IS risk in the Han Hakka population and interaction between MMP-9 rs17576 and MMP-12 rs660599 is associated with increased IS risk as well.
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Affiliation(s)
- Daofeng Fan
- Department of Neurology, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fijian, China
| | - Chong Zheng
- Department of Neurology, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fijian, China
| | - Wenbao Wu
- Department of Acupuncture and Moxibustion, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fijian, China
| | - Yinjuan Chen
- Department of Neurology, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fijian, China
| | - Dongping Chen
- Department of Neurology, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fijian, China
| | - Xiaohong Hu
- Department of Neurology, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fijian, China
| | - Chaoxiong Shen
- Department of Neurology, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fijian, China
| | - Mingsheng Chen
- Department of Neurology, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fijian, China
| | - Rongtong Li
- Department of Neurology, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fijian, China
| | - Yangui Chen
- Department of Neurology, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fijian, China
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4
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Lam TYW, Nguyen N, Peh HY, Shanmugasundaram M, Chandna R, Tee JH, Ong CB, Hossain MZ, Venugopal S, Zhang T, Xu S, Qiu T, Kong WT, Chakarov S, Srivastava S, Liao W, Kim JS, Teh M, Ginhoux F, Fred Wong WS, Ge R. ISM1 protects lung homeostasis via cell-surface GRP78-mediated alveolar macrophage apoptosis. Proc Natl Acad Sci U S A 2022; 119:e2019161119. [PMID: 35046017 PMCID: PMC8794848 DOI: 10.1073/pnas.2019161119] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 11/20/2021] [Indexed: 12/18/2022] Open
Abstract
Alveolar macrophages (AMs) are critical for lung immune defense and homeostasis. They are orchestrators of chronic obstructive pulmonary disease (COPD), with their number significantly increased and functions altered in COPD. However, it is unclear how AM number and function are controlled in a healthy lung and if changes in AMs without environmental assault are sufficient to trigger lung inflammation and COPD. We report here that absence of isthmin 1 (ISM1) in mice (Ism1-/- ) leads to increase in both AM number and functional heterogeneity, with enduring lung inflammation, progressive emphysema, and significant lung function decline, phenotypes similar to human COPD. We reveal that ISM1 is a lung resident anti-inflammatory protein that selectively triggers the apoptosis of AMs that harbor high levels of its receptor cell-surface GRP78 (csGRP78). csGRP78 is present at a heterogeneous level in the AMs of a healthy lung, but csGRP78high AMs are expanded in Ism1-/- mice, cigarette smoke (CS)-induced COPD mice, and human COPD lung, making these cells the prime targets of ISM1-mediated apoptosis. We show that csGRP78high AMs mostly express MMP-12, hence proinflammatory. Intratracheal delivery of recombinant ISM1 (rISM1) depleted csGRP78high AMs in both Ism1-/- and CS-induced COPD mice, blocked emphysema development, and preserved lung function. Consistently, ISM1 expression in human lungs positively correlates with AM apoptosis, suggesting similar function of ISM1-csGRP78 in human lungs. Our findings reveal that AM apoptosis regulation is an important physiological mechanism for maintaining lung homeostasis and demonstrate the potential of pulmonary-delivered rISM1 to target csGRP78 as a therapeutic strategy for COPD.
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Affiliation(s)
- Terence Y W Lam
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Ngan Nguyen
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Hong Yong Peh
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115
| | - Mahalakshmi Shanmugasundaram
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Ritu Chandna
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Jong Huat Tee
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Chee Bing Ong
- Institute of Molecular and Cell Biology, Agency for Science, Technology, and Research, Singapore 138673, Singapore
| | - Md Zakir Hossain
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore
| | - Shruthi Venugopal
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Tianyi Zhang
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Simin Xu
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Tao Qiu
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Wan Ting Kong
- Singapore Immunology Network, Agency for Science, Technology, and Research, Singapore 138648, Singapore
| | - Svetoslav Chakarov
- Singapore Immunology Network, Agency for Science, Technology, and Research, Singapore 138648, Singapore
| | - Supriya Srivastava
- Department of Medicine, National University Hospital, Singapore 119228, Singapore
| | - Wupeng Liao
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
| | - Jin-Soo Kim
- Center for Genome Engineering, Institute for Basic Science, Seoul 08826, South Korea
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Ming Teh
- Department of Pathology, National University Hospital, Singapore 119228
| | - Florent Ginhoux
- Singapore Immunology Network, Agency for Science, Technology, and Research, Singapore 138648, Singapore
| | - W S Fred Wong
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
- Immunology Program, Life Science Institute, National University of Singapore, Singapore 117456, Singapore
- Singapore-Hebrew University of Jerusalem Alliance for Research and Enterprise, National University of Singapore, Singapore 138602, Singapore
| | - Ruowen Ge
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore;
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5
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Baker JR, Donnelly LE. Leukocyte Function in COPD: Clinical Relevance and Potential for Drug Therapy. Int J Chron Obstruct Pulmon Dis 2021; 16:2227-2242. [PMID: 34354348 PMCID: PMC8331105 DOI: 10.2147/copd.s266394] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/19/2021] [Indexed: 11/23/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a progressive lung condition affecting 10% of the global population over 45 years. Currently, there are no disease-modifying treatments, with current therapies treating only the symptoms of the disease. COPD is an inflammatory disease, with a high infiltration of leukocytes being found within the lung of COPD patients. These leukocytes, if not kept in check, damage the lung, leading to the pathophysiology associated with the disease. In this review, we focus on the main leukocytes found within the COPD lung, describing how the release of chemokines from the damaged epithelial lining recruits these cells into the lung. Once present, these cells become active and may be driven towards a more pro-inflammatory phenotype. These cells release their own subtypes of inflammatory mediators, growth factors and proteases which can all lead to airway remodeling, mucus hypersecretion and emphysema. Finally, we describe some of the current therapies and potential new targets that could be utilized to target aberrant leukocyte function in the COPD lung. Here, we focus on old therapies such as statins and corticosteroids, but also look at the emerging field of biologics describing those which have been tested in COPD already and potential new monoclonal antibodies which are under review.
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Affiliation(s)
- Jonathan R Baker
- Airway Disease, National Heart and Lung Institute, Imperial College London, London, UK
| | - Louise E Donnelly
- Airway Disease, National Heart and Lung Institute, Imperial College London, London, UK
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6
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Belchamber KBR, Hughes MJ, Spittle DA, Walker EM, Sapey E. New Pharmacological Tools to Target Leukocyte Trafficking in Lung Disease. Front Immunol 2021; 12:704173. [PMID: 34367163 PMCID: PMC8334730 DOI: 10.3389/fimmu.2021.704173] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 06/24/2021] [Indexed: 01/13/2023] Open
Abstract
Infection and inflammation of the lung results in the recruitment of non-resident immune cells, including neutrophils, eosinophils and monocytes. This swift response should ensure clearance of the threat and resolution of stimuli which drive inflammation. However, once the threat is subdued this influx of immune cells should be followed by clearance of recruited cells through apoptosis and subsequent efferocytosis, expectoration or retrograde migration back into the circulation. This cycle of cell recruitment, containment of threat and then clearance of immune cells and repair is held in exquisite balance to limit host damage. Advanced age is often associated with detrimental changes to the balance described above. Cellular functions are altered including a reduced ability to traffic accurately towards inflammation, a reduced ability to clear pathogens and sustained inflammation. These changes, seen with age, are heightened in lung disease, and most chronic and acute lung diseases are associated with an exaggerated influx of immune cells, such as neutrophils, to the airways as well as considerable inflammation. Indeed, across many lung diseases, pathogenesis and progression has been associated with the sustained presence of trafficking cells, with examples including chronic diseases such as Chronic Obstructive Pulmonary Disease and Idiopathic Pulmonary Fibrosis and acute infections such as Pneumonia and Pneumonitis. In these instances, there is evidence that dysfunctional and sustained recruitment of cells to the airways not only increases host damage but impairs the hosts ability to effectively respond to microbial invasion. Targeting leukocyte migration in these instances, to normalise cellular responses, has therapeutic promise. In this review we discuss the current evidence to support the trafficking cell as an immunotherapeutic target in lung disease, and which potential mechanisms or pathways have shown promise in early drug trials, with a focus on the neutrophil, as the quintessential trafficking immune cell.
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Affiliation(s)
- Kylie B. R. Belchamber
- Birmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, United Kingdom
| | - Michael J. Hughes
- Birmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, United Kingdom
| | - Daniella A. Spittle
- Birmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, United Kingdom
| | - Eloise M. Walker
- Birmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, United Kingdom
| | - Elizabeth Sapey
- Birmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, United Kingdom
- NIHR Clinical Research Facility Birmingham, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom
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7
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Singh R, Belchamber KBR, Fenwick PS, Chana K, Donaldson G, Wedzicha JA, Barnes PJ, Donnelly LE. Defective monocyte-derived macrophage phagocytosis is associated with exacerbation frequency in COPD. Respir Res 2021; 22:113. [PMID: 33879129 PMCID: PMC8059282 DOI: 10.1186/s12931-021-01718-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 04/14/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Lower airway bacterial colonisation (LABC) in COPD patients is associated with increased exacerbation frequency and faster lung function decline. Defective macrophage phagocytosis in COPD drives inflammation, but how defective macrophage function contributes to exacerbations is not clear. This study investigated the association between macrophage phagocytosis and exacerbation frequency, LABC and clinical parameters. METHODS Monocyte-derived macrophages (MDM) were generated from 92 stable COPD patients, and at the onset of exacerbation in 39 patients. Macrophages were exposed to fluorescently labelled Haemophilus influenzae or Streptococcus pneumoniae for 4 h, then phagocytosis measured by fluorimetry and cytokine release by ELISA. Sputum bacterial colonisation was measured by PCR. RESULTS Phagocytosis of H. influenzae was negatively correlated with exacerbation frequency (r = 0.440, p < 0.01), and was significantly reduced in frequent vs. infrequent exacerbators (1.9 × 103 RFU vs. 2.5 × 103 RFU, p < 0.01). There was no correlation for S. pneumoniae. There was no association between phagocytosis of either bacteria with age, lung function, smoking history or treatment with inhaled corticosteroids, or long-acting bronchodilators. Phagocytosis was not altered during an exacerbation, or in the 2 weeks post-exacerbation. In response to phagocytosis, MDM from exacerbating patients showed increased release of CXCL-8 (p < 0.001) and TNFα (p < 0.01) compared to stable state. CONCLUSION Impaired COPD macrophage phagocytosis of H. influenzae, but not S. pneumoniae is associated with exacerbation frequency, resulting in pro-inflammatory macrophages that may contribute to disease progression. Targeting these frequent exacerbators with drugs that improve macrophage phagocytosis may prove beneficial.
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Affiliation(s)
- R Singh
- National Heart and Lung Institute, Imperial College London, London, UK
| | - K B R Belchamber
- National Heart and Lung Institute, Imperial College London, London, UK
| | - P S Fenwick
- National Heart and Lung Institute, Imperial College London, London, UK
| | - K Chana
- National Heart and Lung Institute, Imperial College London, London, UK
| | - G Donaldson
- National Heart and Lung Institute, Imperial College London, London, UK
| | - J A Wedzicha
- National Heart and Lung Institute, Imperial College London, London, UK
| | - P J Barnes
- National Heart and Lung Institute, Imperial College London, London, UK
| | - L E Donnelly
- National Heart and Lung Institute, Imperial College London, London, UK.
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8
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Penke LR, Speth JM, Draijer C, Zaslona Z, Chen J, Mancuso P, Freeman CM, Curtis JL, Goldstein DR, Peters-Golden M. PGE 2 accounts for bidirectional changes in alveolar macrophage self-renewal with aging and smoking. Life Sci Alliance 2020; 3:3/11/e202000800. [PMID: 32820026 PMCID: PMC7441521 DOI: 10.26508/lsa.202000800] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/13/2020] [Accepted: 08/14/2020] [Indexed: 11/24/2022] Open
Abstract
Alveolar macrophages (AMs) are resident immune cells of the lung that are critical for host defense. AMs are capable of proliferative renewal, yet their numbers are known to decrease with aging and increase with cigarette smoking. The mechanism by which AM proliferation is physiologically restrained, and whether dysregulation of this brake contributes to altered AM numbers in pathologic circumstances, however, remains unknown. Mice of advanced age exhibited diminished basal AM numbers and contained elevated PGE2 levels in their bronchoalveolar lavage fluid (BALF) as compared with young mice. Exogenous PGE2 inhibited AM proliferation in an E prostanoid receptor 2 (EP2)-cyclic AMP-dependent manner. Furthermore, EP2 knockout (EP2 KO) mice exhibited elevated basal AM numbers, and their AMs resisted the ability of PGE2 and aged BALF to inhibit proliferation. In contrast, increased numbers of AMs in mice exposed to cigarette smoking were associated with reduced PGE2 levels in BALF and were further exaggerated in EP2 KO mice. Collectively, our findings demonstrate that PGE2 functions as a tunable brake on AM numbers under physiologic and pathophysiological conditions.
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Affiliation(s)
- Loka R Penke
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Jennifer M Speth
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Christina Draijer
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Zbigniew Zaslona
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Judy Chen
- Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI, USA.,Division of Cardiology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Peter Mancuso
- Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI, USA.,Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Christine M Freeman
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA.,Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI, USA.,Research Service, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, MI, USA
| | - Jeffrey L Curtis
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA.,Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI, USA.,Medical Service, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, MI, USA
| | - Daniel R Goldstein
- Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI, USA.,Division of Cardiology, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA.,Institute of Gerontology, University of Michigan, Ann Arbor, MI, USA
| | - Marc Peters-Golden
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA .,Graduate Program in Immunology, University of Michigan Medical School, Ann Arbor, MI, USA
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9
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Belchamber KBR, Donnelly LE. Targeting defective pulmonary innate immunity - A new therapeutic option? Pharmacol Ther 2020; 209:107500. [PMID: 32061706 DOI: 10.1016/j.pharmthera.2020.107500] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 01/31/2020] [Indexed: 12/11/2022]
Abstract
Chronic pulmonary conditions now account for 1 in 15 deaths in the US and mortality is increasing. Chronic obstructive pulmonary disease (COPD) is due to become the 3rd largest cause of mortality by 2030 and mortality from other respiratory conditions such as asthma, idiopathic pulmonary fibrosis and cystic fibrosis are not reducing. There is an urgent need for novel therapies to address this problem as many of the current strategies targeting inflammation are not sufficient. The innate immune system of the lung is an important defence against invading pathogens, but in many chronic pulmonary diseases, this system mounts an inappropriate response. In COPD, macrophages are increased in number, but fail to clear pathogens correctly and become highly activated. This leads to increased damage and remodelling of the airways. In idiopathic fibrosis, there is a switch of macrophage phenotype to a cell that promotes abnormal repair. Neutrophils also display dysfunction in COPD where aberrant migratory profiles may lead to increased damage to lung tissue and emphysema; while in cystic fibrosis the proteolytic lung environment damages neutrophil receptors leading to ineffective phagocytosis and migration. Targeting the innate immune system to restore 'normal function' could have enormous benefits. Improving phagocytosis of pathogens could reduce exacerbations and hence the associated decline in lung function, and novel therapeutics such as sulforaphane appear to do this in vitro. Other natural products such as resveratrol and derivatives also have anti-inflammatory properties. Statins have traditionally been used to manage cholesterol levels in hypercholesterolaemia, however these molecules also have beneficial effects on the innate immune cells. Statins have been shown to be anti-inflammatory and restore aberrant neutrophil chemotaxis in aged cells. Other possible agents that may be efficacious are senolytics. These compounds include natural products such as quercetin which have anti-inflammatory properties but can also suppress viral replication. As viruses have been shown to suppress phagocytosis of macrophages, it is possible that these compounds could have benefit during viral exacerbations to protect this innate response. These compounds demonstrate that it is possible to address defective innate responses in the lung but a better understanding of the mechanisms driving defective innate immunity in pulmonary disease may lead to improved therapeutics.
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Affiliation(s)
- Kylie B R Belchamber
- National Heart and Lung Institute, Imperial College London, Dovehouse Street, London SW3 6LY, UK
| | - Louise E Donnelly
- National Heart and Lung Institute, Imperial College London, Dovehouse Street, London SW3 6LY, UK.
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10
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Zhu H, Liu J, Lin H, Zhang Y, Yang N, Zhou B, Wang Z, Chen-Yu Hsu A, Liu J, Li P. UPLC-QTOF-MS-guided isolation of anti-COPD ginsenosides from wild ginseng. RSC Adv 2019; 9:38658-38668. [PMID: 35540186 PMCID: PMC9075943 DOI: 10.1039/c9ra06635g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 11/21/2019] [Indexed: 12/04/2022] Open
Abstract
Four previously undescribed ginsenosides, along with five known analogues were isolated from wild ginseng by a UPLC-QTOF-MS-guided fractionation procedure. Their structures were elucidated on the basis of spectroscopic and spectrometric data (1D and 2D NMR, HR-ESI-MS). The isolated compounds could significantly inhibit the cigarette smoke extract (CSE)-induced inflammatory reaction in A549 cells. The HDAC2 pathway might be involved in the protective effect against the CSE-mediated inflammatory response in A549 cells.
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Affiliation(s)
- Hailin Zhu
- School of Pharmaceutical Sciences, Jilin University Fujin Road 1266 Changchun 130021 Jilin China +86-431-85619803
| | - Junli Liu
- School of Pharmaceutical Sciences, Jilin University Fujin Road 1266 Changchun 130021 Jilin China +86-431-85619803
| | - Hongqiang Lin
- School of Pharmaceutical Sciences, Jilin University Fujin Road 1266 Changchun 130021 Jilin China +86-431-85619803
| | - Ying Zhang
- School of Pharmaceutical Sciences, Jilin University Fujin Road 1266 Changchun 130021 Jilin China +86-431-85619803
- The First Hospital of Jilin University Changchun 130021 Jilin China
| | - Na Yang
- School of Pharmaceutical Sciences, Jilin University Fujin Road 1266 Changchun 130021 Jilin China +86-431-85619803
| | - Baisong Zhou
- School of Pharmaceutical Sciences, Jilin University Fujin Road 1266 Changchun 130021 Jilin China +86-431-85619803
| | - Zhongyao Wang
- School of Pharmaceutical Sciences, Jilin University Fujin Road 1266 Changchun 130021 Jilin China +86-431-85619803
| | - Alan Chen-Yu Hsu
- Priority Research Centre for Healthy Lungs, Faculty of Health and Medicine, The University of Newcastle Newcastle NSW Australia
| | - Jinping Liu
- School of Pharmaceutical Sciences, Jilin University Fujin Road 1266 Changchun 130021 Jilin China +86-431-85619803
- Research Center of Natural Drug, Jilin University Changchun 130021 Jilin China
| | - Pingya Li
- School of Pharmaceutical Sciences, Jilin University Fujin Road 1266 Changchun 130021 Jilin China +86-431-85619803
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11
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Belchamber KBR, Singh R, Batista CM, Whyte MK, Dockrell DH, Kilty I, Robinson MJ, Wedzicha JA, Barnes PJ, Donnelly LE. Defective bacterial phagocytosis is associated with dysfunctional mitochondria in COPD macrophages. Eur Respir J 2019; 54:13993003.02244-2018. [PMID: 31320451 DOI: 10.1183/13993003.02244-2018] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 06/28/2019] [Indexed: 02/02/2023]
Abstract
Increased reactive oxygen species (ROS) have been implicated in the pathophysiology of chronic obstructive pulmonary disease (COPD). This study examined the effect of exogenous and endogenous oxidative stress on macrophage phagocytosis in patients with COPD.Monocyte-derived macrophages (MDMs) were generated from non-smoker, smoker and COPD subjects, differentiated in either granulocyte macrophage-colony stimulating factor (G-Mφ) or macrophage-colony stimulating factor (M-Mφ). Alveolar macrophages were isolated from lung tissue or bronchoalveolar lavage fluid. Macrophages were incubated in ±200 µM H2O2 for 24 h, then exposed to fluorescently labelled Haemophilus influenzae or Streptococcus pneumoniae for 4 h, after which phagocytosis, mitochondrial ROS (mROS) and mitochondrial membrane potential (ΔΨm) were measured.Phagocytosis of bacteria was significantly decreased in both G-Mφ and M-Mφ from COPD patients compared with from non-smoker controls. In non-smokers and smokers, bacterial phagocytosis did not alter mROS or ΔΨm; however, in COPD, phagocytosis increased early mROS and decreased ΔΨm in both G-Mφ and M-Mφ. Exogenous oxidative stress reduced phagocytosis in non-smoker and COPD alveolar macrophages and non-smoker MDMs, associated with reduced mROS production.COPD macrophages show defective phagocytosis, which is associated with altered mitochondrial function and an inability to regulate mROS production. Targeting mitochondrial dysfunction may restore the phagocytic defect in COPD.
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Affiliation(s)
- Kylie B R Belchamber
- Airway Disease, National Heart and Lung Institute, Imperial College London, London, UK
| | - Richa Singh
- Airway Disease, National Heart and Lung Institute, Imperial College London, London, UK
| | - Craig M Batista
- Airway Disease, National Heart and Lung Institute, Imperial College London, London, UK
| | - Moira K Whyte
- MRC Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK
| | - David H Dockrell
- MRC Centre for Inflammation Research, University of Edinburgh, Edinburgh, UK
| | - Iain Kilty
- Inflammation and Immunology Research Unit, Pfizer Inc, Cambridge, MA, USA
| | | | - Jadwiga A Wedzicha
- Airway Disease, National Heart and Lung Institute, Imperial College London, London, UK
| | - Peter J Barnes
- Airway Disease, National Heart and Lung Institute, Imperial College London, London, UK
| | - Louise E Donnelly
- Airway Disease, National Heart and Lung Institute, Imperial College London, London, UK
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12
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Laskin DL, Malaviya R, Laskin JD. Role of Macrophages in Acute Lung Injury and Chronic Fibrosis Induced by Pulmonary Toxicants. Toxicol Sci 2019; 168:287-301. [PMID: 30590802 PMCID: PMC6432864 DOI: 10.1093/toxsci/kfy309] [Citation(s) in RCA: 150] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
A diverse group of toxicants has been identified that cause injury to the lung including gases (eg, ozone, chlorine), particulates/aerosols (eg, diesel exhaust, fly ash, other combustion products, mustards, nanomaterials, silica, asbestos), chemotherapeutics (eg, bleomycin), and radiation. The pathologic response to these toxicants depends on the dose and duration of exposure and their physical/chemical properties. A common response to pulmonary toxicant exposure is an accumulation of proinflammatory/cytotoxic M1 macrophages at sites of tissue injury, followed by the appearance of anti-inflammatory/wound repair M2 macrophages. It is thought that the outcome of the pathogenic responses to toxicants depends on the balance in the activity of these macrophage subpopulations. Overactivation of either M1 or M2 macrophages leads to injury and disease pathogenesis. Thus, the very same macrophage-derived mediators, released in controlled amounts to destroy injurious materials and pathogens (eg, reactive oxygen species, reactive nitrogen species, proteases, tumor necrosis factor α) and initiate wound repair (eg, transforming growth factor β, connective tissue growth factor, vascular endothelial growth factor), can exacerbate acute lung injury and/or induce chronic disease such as fibrosis, chronic obstructive pulmonary disease, and asthma, when released in excess. This review focuses on the role of macrophage subsets in acute lung injury and chronic fibrosis. Understanding how these pathologies develop following exposure to toxicants, and the contribution of resident and inflammatory macrophages to disease pathogenesis may lead to the development of novel approaches for treating lung diseases.
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Affiliation(s)
- Debra L Laskin
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy,To whom correspondence should be addressed at Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, 160 Frelinghuysen Road, Piscataway, NJ 08854. Fax: 1-732-445-0119. E-mail:
| | - Rama Malaviya
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy
| | - Jeffrey D Laskin
- Department of Environmental and Occupational Health, School of Public Health, Rutgers University, Piscataway, New Jersey
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13
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Dysregulated Functions of Lung Macrophage Populations in COPD. J Immunol Res 2018; 2018:2349045. [PMID: 29670919 PMCID: PMC5835245 DOI: 10.1155/2018/2349045] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Accepted: 11/29/2017] [Indexed: 01/02/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a diverse respiratory disease characterised by bronchiolitis, small airway obstruction, and emphysema. Innate immune cells play a pivotal role in the disease's progression, and in particular, lung macrophages exploit their prevalence and strategic localisation to orchestrate immune responses. To date, alveolar and interstitial resident macrophages as well as blood monocytes have been described in the lungs of patients with COPD contributing to disease pathology by changes in their functional repertoire. In this review, we summarise recent evidence from human studies and work with animal models of COPD with regard to altered functions of each of these myeloid cell populations. We primarily focus on the dysregulated capacity of alveolar macrophages to secrete proinflammatory mediators and proteases, induce oxidative stress, engulf microbes and apoptotic cells, and express surface and intracellular markers in patients with COPD. In addition, we discuss the differences in the responses between alveolar macrophages and interstitial macrophages/monocytes in the disease and propose how the field should advance to better understand the implications of lung macrophage functions in COPD.
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14
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Lim D, Kim W, Lee C, Bae H, Kim J. Macrophage Depletion Protects against Cigarette Smoke-Induced Inflammatory Response in the Mouse Colon and Lung. Front Physiol 2018; 9:47. [PMID: 29483875 PMCID: PMC5816061 DOI: 10.3389/fphys.2018.00047] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 01/15/2018] [Indexed: 01/08/2023] Open
Abstract
Cigarette smoke (CS) is considered as a major risk factor for pulmonary and intestinal inflammation. CS leads to macrophage infiltration in the mucosae of the lung and colon, inducing the uncontrolled secretion of inflammatory mediators, and thus promoting inflammatory response. In this study, we investigated whether macrophage depletion modulates cigarette smoke (CS)-induced inflammatory response in both the lung and colon. The mice were exposed to CS for 30 min, after which they were rested in a fresh air environment for 30 min. The total duration of exposure to CS was 2 h per day for 4 weeks. Macrophage depletion state was made with the injection of clodronate containing liposome. Individual body weights were measured twice a week, and the mice were sacrificed on day 28. Hematoxylin and eosin (H&E) staining was performed in the lung and colon tissue to determine histological changes. Inflammatory mediators' synthesis was analyzed using ELISA and western blotting. Clodronate liposome treatment ameliorated pathological changes associated with the infiltration of immune cells in the lung and colon. Also, clodronate liposome injected mice showed significantly lower level of inflammatory mediators, including cytokines and chemokine and proteases. Our results indicated that macrophage depletion by clodronate liposome treatment attenuates CS-induced inflammatory response in both the lung and colon.
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Affiliation(s)
- Dahae Lim
- Department of Korean Physiology, College of Pharmacy, Kyung Hee University, Seoul, South Korea
| | - Woogyeong Kim
- Department of Korean Physiology, College of Pharmacy, Kyung Hee University, Seoul, South Korea
| | - Chanju Lee
- Department of Science in Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Hyunsu Bae
- Department of Science in Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Jinju Kim
- Department of Korean Physiology, College of Pharmacy, Kyung Hee University, Seoul, South Korea
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15
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Vandereyken M, Jacques S, Van Overmeire E, Amand M, Rocks N, Delierneux C, Singh P, Singh M, Ghuysen C, Wathieu C, Zurashvili T, Sounni NE, Moutschen M, Gilles C, Oury C, Cataldo D, Van Ginderachter JA, Rahmouni S. Dusp3 deletion in mice promotes experimental lung tumour metastasis in a macrophage dependent manner. PLoS One 2017; 12:e0185786. [PMID: 29020102 PMCID: PMC5636116 DOI: 10.1371/journal.pone.0185786] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 09/19/2017] [Indexed: 11/26/2022] Open
Abstract
Vaccinia-H1 Related (VHR) dual-specificity phosphatase, or DUSP3, plays an important role in cell cycle regulation and its expression is altered in several human cancers. In mouse model, DUSP3 deletion prevents neo-angiogenesis and b-FGF-induced microvessel outgrowth. Considering the importance of angiogenesis in metastasis formation, our study aimed to investigate the role of DUSP3 in tumour cell dissemination. Using a Lewis Lung carcinoma (LLC) experimental metastasis model, we observed that DUSP3-/- mice developed larger lung metastases than littermate controls. DUSP3-/- bone marrow transfer to lethally irradiated DUSP3+/+ mice was sufficient to transfer the phenotype to DUSP3+/+ mice, indicating that hematopoietic cells compartment was involved in the increased tumour cell dissemination to lung tissues. Interestingly, we found a higher percentage of tumour-promoting Ly6Cint macrophages in DUSP3-/- LLC-bearing lung homogenates that was at least partially due to a better recruitment of these cells. This was confirmed by 1) the presence of higher number of the Ly6Bhi macrophages in DUSP3-/- lung homogenates and by 2) the better migration of DUSP3-/- bone marrow sorted monocytes, peritoneal macrophages and bone marrow derived macrophages (BMDMs), compared to DUSP3+/+ monocytes, macrophages and BMDMs, in response to LLC-conditioned medium. Our study demonstrates that DUSP3 phosphatase plays a key role in metastatic growth through a mechanism involving the recruitment of macrophages towards LLC-bearing lungs.
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Affiliation(s)
- Maud Vandereyken
- Immunology and Infectious Disease Unit, GIGA-I3, University of Liège, Liège, Belgium
| | - Sophie Jacques
- Immunology and Infectious Disease Unit, GIGA-I3, University of Liège, Liège, Belgium
| | - Eva Van Overmeire
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium.,Laboratory of Myeloid Cell Immunology, VIB inflammation research center, Ghent, Belgium
| | - Mathieu Amand
- Immunology and Infectious Disease Unit, GIGA-I3, University of Liège, Liège, Belgium
| | - Natacha Rocks
- Laboratory of Tumour and Developmental Biology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Céline Delierneux
- Laboratory of Thrombosis and Haemostasis, GIGA-Cardiovascular Sciences Unit, University of Liège, Liège, Belgium
| | - Pratibha Singh
- Immunology and Infectious Disease Unit, GIGA-I3, University of Liège, Liège, Belgium
| | - Maneesh Singh
- Immunology and Infectious Disease Unit, GIGA-I3, University of Liège, Liège, Belgium
| | - Camille Ghuysen
- Immunology and Infectious Disease Unit, GIGA-I3, University of Liège, Liège, Belgium
| | - Caroline Wathieu
- Immunology and Infectious Disease Unit, GIGA-I3, University of Liège, Liège, Belgium
| | - Tinatin Zurashvili
- Immunology and Infectious Disease Unit, GIGA-I3, University of Liège, Liège, Belgium
| | - Nor Eddine Sounni
- Laboratory of Tumour and Developmental Biology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Michel Moutschen
- Immunology and Infectious Disease Unit, GIGA-I3, University of Liège, Liège, Belgium
| | - Christine Gilles
- Laboratory of Tumour and Developmental Biology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Cécile Oury
- Laboratory of Thrombosis and Haemostasis, GIGA-Cardiovascular Sciences Unit, University of Liège, Liège, Belgium
| | - Didier Cataldo
- Laboratory of Tumour and Developmental Biology, GIGA-Cancer, University of Liège, Liège, Belgium
| | - Jo A Van Ginderachter
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium.,Laboratory of Myeloid Cell Immunology, VIB inflammation research center, Ghent, Belgium
| | - Souad Rahmouni
- Immunology and Infectious Disease Unit, GIGA-I3, University of Liège, Liège, Belgium
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16
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Oliveira da Silva C, Monte-Alto-Costa A, Renovato-Martins M, Viana Nascimento FJ, Dos Santos Valença S, Lagente V, Pôrto LC, Victoni T. Time Course of the Phenotype of Blood and Bone Marrow Monocytes and Macrophages in the Lung after Cigarette Smoke Exposure In Vivo. Int J Mol Sci 2017; 18:ijms18091940. [PMID: 28891938 PMCID: PMC5618589 DOI: 10.3390/ijms18091940] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 08/30/2017] [Accepted: 09/04/2017] [Indexed: 12/20/2022] Open
Abstract
Alveolar macrophages play a central role in the pathogenesis of chronic obstructive pulmonary disease (COPD). Monocytes are recruited from blood during inflammation and then mature into alveolar macrophages. The aim of this study was to investigate the effect of cigarette smoke (CS) at different times in lung macrophages and monocytes from blood and bone marrow in mice. Male mice (C57BL/6, n = 45) were divided into groups: control, CS 5 days, CS 14 days and CS 30 days. Five days’ CS exposure induced a pronounced influx of neutrophils and macrophages in the lung associated with increased levels of keratinocyte chemoattractant (KC), tumor necrosis factor-α (TNF-α), nitric oxide (NO) and matrix metalloproteinase (MMP)-12. After 14 days of CS exposure, neutrophil recruitment and cytokine production were greatly reduced. Moreover, chronic CS exposure led to increased recruitment of macrophages (with high expression of CD206), transforming growth factor-β (TGF-β) production as well as no detection of TNF-α, interleukin (IL)-6 and KC. CS can also change the monocyte phenotype in the blood and bone marrow, with an increase in Ly6Clow cells. These results show for the first time that CS can change not only macrophage polarization but also monocyte. These results suggest that continued recruitment of Ly6Clow monocytes may help the distinct renewing macrophage M2 population required for COPD progression.
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Affiliation(s)
- Camila Oliveira da Silva
- Laboratório e Histocompatibilidade e Criopreservação, HLA/Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ 20950-000, Brazil.
| | - Andréa Monte-Alto-Costa
- Laboratório de Reparo Tecidual, DHE/IBRAG/Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ 20950-003, Brazil.
| | - Mariana Renovato-Martins
- Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ 20551-030, Brazil.
| | - Filipe Jorge Viana Nascimento
- Laboratório e Histocompatibilidade e Criopreservação, HLA/Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ 20950-000, Brazil.
| | - Samuel Dos Santos Valença
- Laboratório de Biologia Redox, ICB/Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil.
| | - Vincent Lagente
- Nutrition, Métabolismes et Cancer, NUMECAN Unité, Institut national de la santé et de la recherche médicale, INSERM 1241/Institut national de la recherche agronomique, INRA 1341/Université de Rennes 1, 35000 Rennes, France.
| | - Luís Cristóvão Pôrto
- Laboratório e Histocompatibilidade e Criopreservação, HLA/Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ 20950-000, Brazil.
| | - Tatiana Victoni
- Laboratório e Histocompatibilidade e Criopreservação, HLA/Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ 20950-000, Brazil.
- Nutrition, Métabolismes et Cancer, NUMECAN Unité, Institut national de la santé et de la recherche médicale, INSERM 1241/Institut national de la recherche agronomique, INRA 1341/Université de Rennes 1, 35000 Rennes, France.
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17
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Huo M, Huang Y, Qu D, Zhang H, Wong WT, Chawla A, Huang Y, Tian XY. Myeloid Bmal1 deletion increases monocyte recruitment and worsens atherosclerosis. FASEB J 2017; 31:1097-1106. [PMID: 27927724 PMCID: PMC6191064 DOI: 10.1096/fj.201601030r] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 11/22/2016] [Indexed: 02/01/2023]
Abstract
BMAL1, the nonredundant transcription factor in the core molecular clock, has been implicated in cardiometabolic diseases in mice and humans. BMAL1 controls the cyclic trafficking of Ly6chi monocytes to sites of acute inflammation. Myeloid deficiency of Bmal1 also worsens chronic inflammation in diet-induced obesity. We studied whether myeloid Bmal1 deletion promotes atherosclerosis by enhancing monocyte recruitment to atherosclerotic lesions. By generating Bmal1FloxP/FloxP;LysMCre mice on the Apoe-/- background, we showed that Bmal1 deletion in myeloid cells increased the size of atherosclerotic lesions. Bmal1 deficiency in monocytes and macrophages resulted in an increased total number of lesional macrophages in general and Ly6chi infiltrating monocyte-macrophages in particular, accompanied by skewed M2 to M1 macrophage phenotype. Ly6chi and/or Ly6clo monocyte subsets in blood, spleen, and bone marrow were not altered. Cell tracking and adoptive transfer of Ly6chi monocytes showed Bmal1 deficiency induced more trafficking of Ly6chi monocytes to atherosclerotic lesions, preferential differentiation of Ly6chi monocytes into M1 macrophages, and increased macrophage content and lesion size in the carotid arteries. We demonstrated that Bmal1 deficiency in macrophages promotes atherosclerosis by enhancing recruitment of Ly6chi monocytes to atherosclerotic lesions.-Huo, M., Huang, Y., Qu, D., Zhang, H., Wong, W. T., Chawla, A., Huang, Y., Tian, X. Y. Myeloid Bmal1 deletion increases monocyte recruitment and worsens atherosclerosis.
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Affiliation(s)
- Mingyu Huo
- Institute of Vascular Medicine, Chinese University of Hong Kong, Hong Kong
- Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong
- School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong
| | - Yuhong Huang
- Institute of Vascular Medicine, Chinese University of Hong Kong, Hong Kong
- Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong
- School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong
| | - Dan Qu
- Institute of Vascular Medicine, Chinese University of Hong Kong, Hong Kong
- Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong
- School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong
| | - Hongsong Zhang
- Institute of Vascular Medicine, Chinese University of Hong Kong, Hong Kong
- Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong
- School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong
| | - Wing Tak Wong
- School of Life Sciences, Chinese University of Hong Kong, Hong Kong, China
| | - Ajay Chawla
- Cardiovascular Research Institute, University of California, San Francisco, San Francisco, California, USA
- Department of Physiology, University of California, San Francisco, San Francisco, California, USA
- Department of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Yu Huang
- Institute of Vascular Medicine, Chinese University of Hong Kong, Hong Kong
- Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong
- School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong
| | - Xiao Yu Tian
- Institute of Vascular Medicine, Chinese University of Hong Kong, Hong Kong;
- Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong
- School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong
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18
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Kim KH, Park TS, Kim YS, Lee JS, Oh YM, Lee SD, Lee SW. Resolvin D1 prevents smoking-induced emphysema and promotes lung tissue regeneration. Int J Chron Obstruct Pulmon Dis 2016; 11:1119-28. [PMID: 27313451 PMCID: PMC4890694 DOI: 10.2147/copd.s100198] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Purpose Emphysema is an irreversible disease that is characterized by destruction of lung tissue as a result of inflammation caused by smoking. Resolvin D1 (RvD1), derived from docosahexaenoic acid, is a novel lipid that resolves inflammation. The present study tested whether RvD1 prevents smoking-induced emphysema and promotes lung tissue regeneration. Materials and methods C57BL/6 mice, 8 weeks of age, were randomly divided into four groups: control, RvD1 only, smoking only, and smoking with RvD1 administration. Four different protocols were used to induce emphysema and administer RvD1: mice were exposed to smoking for 4 weeks with poly(I:C) or to smoking only for 24 weeks, and RvD1 was injected within the smoking exposure period to prevent regeneration or after completion of smoking exposure to assess regeneration. The mean linear intercept and inflammation scores were measured in the lung tissue, and inflammatory cells and cytokines were measured in the bronchoalveolar lavage fluid. Results Measurements of mean linear intercept showed that RvD1 significantly attenuated smoking-induced lung destruction in all emphysema models. RvD1 also reduced smoking-induced inflammatory cell infiltration, which causes the structural derangements observed in emphysema. In the 4-week prevention model, RvD1 reduced the smoking-induced increase in eosinophils and interleukin-6 in the bronchoalveolar lavage fluid. In the 24-week prevention model, RvD1 also reduced the increased neutrophils and total cell counts induced by smoking. Conclusion RvD1 attenuated smoking-induced emphysema in vivo by reducing inflammation and promoting tissue regeneration. This result suggests that RvD1 may be useful in the prevention and treatment of emphysema.
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Affiliation(s)
- Kang-Hyun Kim
- Asan Institute for Life Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Tai Sun Park
- Department of Pulmonology and Critical Care Medicine, Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea; Department of Pulmonology and Critical Care Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - You-Sun Kim
- Asan Institute for Life Sciences, University of Ulsan College of Medicine, Seoul, Republic of Korea; Department of Pulmonology and Critical Care Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jae Seung Lee
- Department of Pulmonology and Critical Care Medicine, Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea; Department of Pulmonology and Critical Care Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Yeon-Mok Oh
- Department of Pulmonology and Critical Care Medicine, Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea; Department of Pulmonology and Critical Care Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Sang-Do Lee
- Department of Pulmonology and Critical Care Medicine, Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea; Department of Pulmonology and Critical Care Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Sei Won Lee
- Department of Pulmonology and Critical Care Medicine, Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea; Department of Pulmonology and Critical Care Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
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19
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Khedoe PPSJ, Rensen PCN, Berbée JFP, Hiemstra PS. Murine models of cardiovascular comorbidity in chronic obstructive pulmonary disease. Am J Physiol Lung Cell Mol Physiol 2016; 310:L1011-27. [PMID: 26993520 DOI: 10.1152/ajplung.00013.2016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 03/15/2016] [Indexed: 01/12/2023] Open
Abstract
Patients with chronic obstructive pulmonary disease (COPD) have an increased risk for cardiovascular disease (CVD). Currently, COPD patients with atherosclerosis (i.e., the most important underlying cause of CVD) receive COPD therapy complemented with standard CVD therapy. This may, however, not be the most optimal treatment. To investigate the link between COPD and atherosclerosis and to develop specific therapeutic strategies for COPD patients with atherosclerosis, a substantial number of preclinical studies using murine models have been performed. In this review, we summarize the currently used murine models of COPD and atherosclerosis, both individually and combined, and discuss the relevance of these models for studying the pathogenesis and development of new treatments for COPD patients with atherosclerosis. Murine and clinical studies have provided complementary information showing a prominent role for systemic inflammation and oxidative stress in the link between COPD and atherosclerosis. These and other studies showed that murine models for COPD and atherosclerosis are useful tools and can provide important insights relevant to understanding the link between COPD and CVD. More importantly, murine studies provide good platforms for studying the potential of promising (new) therapeutic strategies for COPD patients with CVD.
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Affiliation(s)
- P Padmini S J Khedoe
- Department of Pulmonology, Leiden University Medical Center, the Netherlands; Department of Medicine, Division of Endocrinology, Leiden University Medical Center, the Netherlands; and
| | - Patrick C N Rensen
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, the Netherlands; and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, the Netherlands
| | - Jimmy F P Berbée
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, the Netherlands; and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, the Netherlands
| | - Pieter S Hiemstra
- Department of Pulmonology, Leiden University Medical Center, the Netherlands
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20
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Fu J, Yuan D, Xiao L, Tu W, Dong C, Liu W, Shao C. The crosstalk between α-irradiated Beas-2B cells and its bystander U937 cells through MAPK and NF-κB signaling pathways. Mutat Res 2015; 783:1-8. [PMID: 26613333 DOI: 10.1016/j.mrfmmm.2015.11.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 11/04/2015] [Accepted: 11/09/2015] [Indexed: 12/19/2022]
Abstract
Although accumulated evidence suggests that α-particle irradiation induced bystander effect may relevant to lung injury and cancer risk assessment, the exact mechanisms are not yet elucidated. In the present study, a cell co-culture system was used to investigate the interaction between α-particle irradiated human bronchial epithelial cells (Beas-2B) and its bystander macrophage U937 cells. It was found that the cell co-culture amplified the detrimental effects of α-irradiation including cell viability decrease and apoptosis promotion on both irradiated cells and bystander cells in a feedback loop which was closely relevant to the activation of MAPK and NF-κB pathways in the bystander U937 cells. When these two pathways in U937 cells were disturbed by special pharmacological inhibitors before cell co-culture, it was found that a NF-κB inhibitor of BAY 11-7082 further enhanced the proliferation inhibition and apoptosis induction in bystander U937 cells, but MAPK inhibitors of SP600125 and SB203580 protected cells from viability loss and apoptosis and U0126 presented more beneficial effect on cell protection. For α-irradiated epithelial cells, the activation of NF-κB and MAPK pathways in U937 cells participated in detrimental cellular responses since the above inhibitors could largely attenuate cell viability loss and apoptosis of irradiated cells. Our results demonstrated that there are bilateral bystander responses between irradiated lung epithelial cells and macrophages through MAPK and NF-κB signaling pathways, which accounts for the enhancement of α-irradiation induced damage.
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Affiliation(s)
- Jiamei Fu
- Institute of Radiation Medicine, Fudan University, No. 2094 Xie-Tu Road, Shanghai 200032, China
| | - Dexiao Yuan
- Institute of Radiation Medicine, Fudan University, No. 2094 Xie-Tu Road, Shanghai 200032, China
| | - Linlin Xiao
- Institute of Radiation Medicine, Fudan University, No. 2094 Xie-Tu Road, Shanghai 200032, China
| | - Wenzhi Tu
- Institute of Radiation Medicine, Fudan University, No. 2094 Xie-Tu Road, Shanghai 200032, China
| | - Chen Dong
- Institute of Radiation Medicine, Fudan University, No. 2094 Xie-Tu Road, Shanghai 200032, China
| | - Weili Liu
- Institute of Radiation Medicine, Fudan University, No. 2094 Xie-Tu Road, Shanghai 200032, China
| | - Chunlin Shao
- Institute of Radiation Medicine, Fudan University, No. 2094 Xie-Tu Road, Shanghai 200032, China.
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Ariestanti DM, Ando H, Hirose S, Nakamura N. Targeted Disruption of Ig-Hepta/Gpr116 Causes Emphysema-like Symptoms That Are Associated with Alveolar Macrophage Activation. J Biol Chem 2015; 290:11032-40. [PMID: 25778400 DOI: 10.1074/jbc.m115.648311] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Indexed: 10/23/2022] Open
Abstract
Ig-Hepta/GPR116 is a member of the G protein-coupled receptor family predominantly expressed in the alveolar type II epithelial cells of the lung. Previous studies have shown that Ig-Hepta is essential for lung surfactant homeostasis, and loss of its function results in high accumulation of surfactant lipids and proteins in the alveolar space. Ig-Hepta knock-out (Ig-Hepta(-/-)) mice also exhibit emphysema-like symptoms, including accumulation of foamy alveolar macrophages (AMs), but its pathogenic mechanism is unknown. Here, we show that the bronchoalveolar lavage fluid obtained from Ig-Hepta(-/-) mice contains high levels of inflammatory mediators, lipid hydroperoxides, and matrix metalloproteinases (MMPs), which are produced by AMs. Accumulation of reactive oxygen species was observed in the AMs of Ig-Hepta(-/-) mice in an age-dependent manner. In addition, nuclear factor-κB (NF-κB) is activated and translocated into the nuclei of the AMs of Ig-Hepta(-/-) mice. Release of MMP-2 and MMP-9 from the AMs was strongly inhibited by treatment with inhibitors of oxidants and NF-κB. We also found that the level of monocyte chemotactic protein-1 is increased in the embryonic lungs of Ig-Hepta(-/-) mice at 18.5 days postcoitum, when AMs are not accumulated and activated. These results suggest that Ig-Hepta plays an important role in regulating macrophage immune responses, and its deficiency leads to local inflammation in the lung, where AMs produce excessive amounts of reactive oxygen species and up-regulate MMPs through the NF-κB signaling pathway.
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Affiliation(s)
- Donna Maretta Ariestanti
- From the Department of Biological Sciences, Tokyo Institute of Technology, 4259-B13 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
| | - Hikaru Ando
- From the Department of Biological Sciences, Tokyo Institute of Technology, 4259-B13 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
| | - Shigehisa Hirose
- From the Department of Biological Sciences, Tokyo Institute of Technology, 4259-B13 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
| | - Nobuhiro Nakamura
- From the Department of Biological Sciences, Tokyo Institute of Technology, 4259-B13 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
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23
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Mancilla-Herrera I, Alvarado-Moreno JA, Cérbulo-Vázquez A, Prieto-Chávez JL, Ferat-Osorio E, López-Macías C, Estrada-Parra S, Isibasi A, Arriaga-Pizano L. Activated endothelial cells limit inflammatory response, but increase chemoattractant potential and bacterial clearance by human monocytes. Cell Biol Int 2015; 39:721-32. [PMID: 25598193 DOI: 10.1002/cbin.10440] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 01/10/2015] [Indexed: 12/13/2022]
Abstract
Inflammation is the normal immune response of vascularized tissues to damage and bacterial products, for which leukocyte transendothelial migration (TEM) is critical. The effects of cell-to-cell contact seen in both leukocyte and endothelial cells include cytoskeleton rearrangement, and dynamic expression of adhesion molecules and metalloproteinases. TEM induces expression of anti-apoptotic molecules, costimulatory molecules associated with antigen presentation, and pattern recognition receptors (PRR), such as TLR-4, in monocytes. However, little is known about how TLR-4 increment operates in monocytes during an inflammatory response. To understand it better, we used an in vitro model in which monocytes crossed a layer of IL-1β stimulated Human Umbilical Vein Endothelial Cells (HUVEC). After TEM, monocytes were tested for the secretion of inflammatory cytokines and chemokines, their phenotype (CD14, CD16, TLR-4 expression), and TLR-4 canonical [Nuclear Factor kappa B, (NF-κB) pathway] and non-canonical [p38, extracellular signal-regulated kinases (ERK) 1/2 pathway] signal transduction induced by lipopolysaccharide (LPS). Phagocytosis and bacterial clearance were also measured. There was diminished secretion of LPS-induced inflammatory cytokines (IL-1β, IL-6, and TNF-α) and higher secretion of chemokines (CXCL8/IL-8 and CCL2/MCP-1) in supernatant of TEM monocytes. These changes were accompanied by increases in TLR-4, CD14 (surfaces expression), p38, and ERK1/2 phosphorylated cytoplasmic forms, without affecting NF-κB activation. It also increased bacterial clearance after TEM by an O2 -independent mechanism. The data suggest that interaction between endothelial cells and monocytes fine-tunes the inflammatory response and promotes bacterial elimination.
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Affiliation(s)
- Ismael Mancilla-Herrera
- Graduate Program on Immunology, ENCB-IPN, Mexico City, Mexico.,Medical Research Unit on Immunochemistry, Specialties Hospital of the National Medical Centre "Siglo XXI" Mexican Social Security Institute (IMSS), Mexico City, Mexico
| | - José Antonio Alvarado-Moreno
- Medical Research Unit in Thrombosis, Hemostasis and Atherogenesis, Regional General Hospital Dr. Carlos MacGregor Sánchez Navarro, IMSS, Mexico City, Mexico
| | | | - Jessica L Prieto-Chávez
- Medical Research Unit on Immunochemistry, Specialties Hospital of the National Medical Centre "Siglo XXI" Mexican Social Security Institute (IMSS), Mexico City, Mexico.,Graduate Program on Chemical and Biological Sciences, ENCB-IPN, Mexico City, Mexico
| | - Eduardo Ferat-Osorio
- Gastrointestinal Surgery Service, Specialties Hospital of the National Medical Centre "Siglo XXI", IMSS, Mexico City, Mexico
| | - Constantino López-Macías
- Medical Research Unit on Immunochemistry, Specialties Hospital of the National Medical Centre "Siglo XXI" Mexican Social Security Institute (IMSS), Mexico City, Mexico
| | - Sergio Estrada-Parra
- Molecular Immunology Laboratory, Immunology Department, ENCB-IPN, Mexico City, Mexico
| | - Armando Isibasi
- Medical Research Unit on Immunochemistry, Specialties Hospital of the National Medical Centre "Siglo XXI" Mexican Social Security Institute (IMSS), Mexico City, Mexico
| | - Lourdes Arriaga-Pizano
- Medical Research Unit on Immunochemistry, Specialties Hospital of the National Medical Centre "Siglo XXI" Mexican Social Security Institute (IMSS), Mexico City, Mexico
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24
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Pouwels SD, Heijink IH, Brouwer U, Gras R, den Boef LE, Boezen HM, Korstanje R, van Oosterhout AJM, Nawijn MC. Genetic variation associates with susceptibility for cigarette smoke-induced neutrophilia in mice. Am J Physiol Lung Cell Mol Physiol 2015; 308:L693-709. [PMID: 25637605 DOI: 10.1152/ajplung.00118.2014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 01/16/2015] [Indexed: 11/22/2022] Open
Abstract
Neutrophilic airway inflammation is one of the major hallmarks of chronic obstructive pulmonary disease and is also seen in steroid resistant asthma. Neutrophilic airway inflammation can be induced by different stimuli including cigarette smoke (CS). Short-term exposure to CS induces neutrophilic airway inflammation in both mice and humans. Since not all individuals develop extensive neutrophilic airway inflammation upon smoking, we hypothesized that this CS-induced innate inflammation has a genetic component. This hypothesis was addressed by exposing 30 different inbred mouse strains to CS or control air for 5 consecutive days, followed by analysis of neutrophilic lung inflammation. By genomewide haplotype association mapping, we identified four susceptibility genes with a significant association to lung tissue levels of the neutrophil marker myeloperoxidase under basal conditions and an additional five genes specifically associated with CS-induced tissue MPO levels. Analysis of the expression levels of the susceptibility genes by quantitative RT-PCR revealed that three of the four genes associated with CS-induced tissue MPO levels had CS-induced changes in gene expression levels that correlate with CS-induced airway inflammation. Most notably, CS exposure induces an increased expression of the coiled-coil domain containing gene, Ccdc93, in mouse strains susceptible for CS-induced airway inflammation whereas Ccdc93 expression was decreased upon CS exposure in nonsusceptible mouse strains. In conclusion, this study shows that CS-induced neutrophilic airway inflammation has a genetic component and that several genes contribute to the susceptibility for this response.
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Affiliation(s)
- Simon D Pouwels
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Experimental Pulmonology and Inflammation Research, Groningen, The Netherlands; GRIAC Research Institute, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Irene H Heijink
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Experimental Pulmonology and Inflammation Research, Groningen, The Netherlands; GRIAC Research Institute, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands; University of Groningen, University Medical Center Groningen, Department of Pulmonology, Groningen, The Netherlands
| | - Uilke Brouwer
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Experimental Pulmonology and Inflammation Research, Groningen, The Netherlands; GRIAC Research Institute, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Renee Gras
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Experimental Pulmonology and Inflammation Research, Groningen, The Netherlands; GRIAC Research Institute, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Lisette E den Boef
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Experimental Pulmonology and Inflammation Research, Groningen, The Netherlands; GRIAC Research Institute, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - H Marike Boezen
- GRIAC Research Institute, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands; University of Groningen, University Medical Center Groningen, Department of Epidemiology, Groningen, The Netherlands; and
| | | | - Antoon J M van Oosterhout
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Experimental Pulmonology and Inflammation Research, Groningen, The Netherlands; GRIAC Research Institute, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Martijn C Nawijn
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Experimental Pulmonology and Inflammation Research, Groningen, The Netherlands; GRIAC Research Institute, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands;
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25
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Pérez-Rial S, Girón-Martínez Á, Peces-Barba G. Animal models of chronic obstructive pulmonary disease. Arch Bronconeumol 2014; 51:121-7. [PMID: 25201221 DOI: 10.1016/j.arbres.2014.06.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 06/24/2014] [Accepted: 06/25/2014] [Indexed: 11/28/2022]
Abstract
Animal models of disease have always been welcomed by the scientific community because they provide an approach to the investigation of certain aspects of the disease in question. Animal models of COPD cannot reproduce the heterogeneity of the disease and usually only manage to represent the disease in its milder stages. Moreover, airflow obstruction, the variable that determines patient diagnosis, not always taken into account in the models. For this reason, models have focused on the development of emphysema, easily detectable by lung morphometry, and have disregarded other components of the disease, such as airway injury or associated vascular changes. Continuous, long-term exposure to cigarette smoke is considered the main risk factor for this disease, justifying the fact that the cigarette smoke exposure model is the most widely used. Some variations on this basic model, related to exposure time, the association of other inducers or inhibitors, exacerbations or the use of transgenic animals to facilitate the identification of pathogenic pathways have been developed. Some variations or heterogeneity of this disease, then, can be reproduced and models can be designed for resolving researchers' questions on disease identification or treatment responses.
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Affiliation(s)
- Sandra Pérez-Rial
- Laboratorio de Neumología, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz-CIBERES-UAM, Madrid, España
| | - Álvaro Girón-Martínez
- Laboratorio de Neumología, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz-CIBERES-UAM, Madrid, España
| | - Germán Peces-Barba
- Laboratorio de Neumología, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz-CIBERES-UAM, Madrid, España.
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26
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Pérez-Rial S, Del Puerto-Nevado L, Girón-Martínez A, Terrón-Expósito R, Díaz-Gil JJ, González-Mangado N, Peces-Barba G. Liver growth factor treatment reverses emphysema previously established in a cigarette smoke exposure mouse model. Am J Physiol Lung Cell Mol Physiol 2014; 307:L718-26. [PMID: 25172913 DOI: 10.1152/ajplung.00293.2013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is an inflammatory lung disease largely associated with cigarette smoke exposure (CSE) and characterized by pulmonary and extrapulmonary manifestations, including systemic inflammation. Liver growth factor (LGF) is an albumin-bilirubin complex with demonstrated antifibrotic, antioxidant, and antihypertensive actions even at extrahepatic sites. We aimed to determine whether short LGF treatment (1.7 μg/mouse ip; 2 times, 2 wk), once the lung damage was established through the chronic CSE, contributes to improvement of the regeneration of damaged lung tissue, reducing systemic inflammation. We studied AKR/J mice, divided into three groups: control (air-exposed), CSE (chronic CSE), and CSE + LGF (LGF-treated CSE mice). We assessed pulmonary function, morphometric data, and levels of various systemic inflammatory markers to test the LGF regenerative capacity in this system. Our results revealed that the lungs of the CSE animals showed pulmonary emphysema and inflammation, characterized by increased lung compliance, enlargement of alveolar airspaces, systemic inflammation (circulating leukocytes and serum TNF-α level), and in vivo lung matrix metalloproteinase activity. LGF treatment was able to reverse all these parameters, decreasing total cell count in bronchoalveolar lavage fluid and T-lymphocyte infiltration in peripheral blood observed in emphysematous mice and reversing the decrease in monocytes observed in chronic CSE mice, and tends to reduce the neutrophil population and serum TNF-α level. In conclusion, LGF treatment normalizes the physiological and morphological parameters and levels of various systemic inflammatory biomarkers in a chronic CSE AKR/J model, which may have important pathophysiological and therapeutic implications for subjects with stable COPD.
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Affiliation(s)
- Sandra Pérez-Rial
- Respiratory Research Group, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz-CIBERES (IIS-FJD-CIBERES), Madrid, Spain
| | - Laura Del Puerto-Nevado
- Respiratory Research Group, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz-CIBERES (IIS-FJD-CIBERES), Madrid, Spain
| | - Alvaro Girón-Martínez
- Respiratory Research Group, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz-CIBERES (IIS-FJD-CIBERES), Madrid, Spain
| | - Raúl Terrón-Expósito
- Respiratory Research Group, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz-CIBERES (IIS-FJD-CIBERES), Madrid, Spain
| | - Juan J Díaz-Gil
- Respiratory Research Group, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz-CIBERES (IIS-FJD-CIBERES), Madrid, Spain
| | - Nicolás González-Mangado
- Respiratory Research Group, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz-CIBERES (IIS-FJD-CIBERES), Madrid, Spain
| | - Germán Peces-Barba
- Respiratory Research Group, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz-CIBERES (IIS-FJD-CIBERES), Madrid, Spain
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27
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Feng L, Liu X, Zhu W, Guo F, YingchunWu, Wang R, Chen K, Huang C, Li Y. Inhibition of human neutrophil elastase by pentacyclic triterpenes. PLoS One 2013; 8:e82794. [PMID: 24376583 PMCID: PMC3869726 DOI: 10.1371/journal.pone.0082794] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 10/29/2013] [Indexed: 12/31/2022] Open
Abstract
SCOPE Inhibiting human neutrophil elastase (HNE) is a promising strategy for treating inflammatory lung diseases, such as H1N1 and SARS virus infections. The use of sivelestat, the only clinically registered synthesized HNE inhibitor, is largely limited by its risk of organ toxicity because it irreversibly inhibits HNE. Therefore, potent reversible HNE inhibitors are promising alternatives to sivelestat. METHODS AND RESULTS An in vitro HNE inhibition assay was employed to screen a series of triterpenes. Six pentacyclic triterpenes, but not tetracyclic triterpenes, significantly inhibited HNE. Of these pentacyclic triterpenes, ursolic acid exhibited the highest inhibitory potency (IC50 = 5.51 µM). The HNE inhibitory activity of ursolic acid was further verified using a mouse model of acute smoke-induced lung inflammation. The results of nuclear magnetic resonance and HNE inhibition kinetic analysis showed that the pentacyclic triterpenes competitively and reversibly inhibited HNE. Molecular docking experiments indicated that the molecular scaffold, 28-COOH, and a double bond at an appropriate location in the pentacyclic triterpenes are important for their inhibitory activity. CONCLUSION Our results provide insights into the effects of pentacyclic triterpenes on lung inflammatory actions through reversible inhibition of HNE activity.
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Affiliation(s)
- Li Feng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaoyu Liu
- Department of Biological Chemistry, Second Military Medicinal University, Shanghai, China
| | - Weiliang Zhu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Fujiang Guo
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - YingchunWu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Rui Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Kaixian Chen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Cheng Huang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yiming Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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