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Berman R, Rose CS, Downey GP, Day BJ, Chu HW. Role of Particulate Matter from Afghanistan and Iraq in Deployment-Related Lung Disease. Chem Res Toxicol 2021; 34:2408-2423. [PMID: 34808040 DOI: 10.1021/acs.chemrestox.1c00090] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Approximately 3 million United States military personnel and contractors were deployed to Southwest Asia and Afghanistan over the past two decades. After returning to the United States, many developed persistent respiratory symptoms, including those due to asthma, rhinosinusitis, bronchiolitis, and others, which we collectively refer to as deployment-related lung diseases (DRLD). The mechanisms of different DRLD have not been well defined. Limited studies from us and others suggest that multiple factors and biological signaling pathways contribute to the onset of DRLD. These include, but are not limited to, exposures to high levels of particulate matter (PM) from sandstorms, burn pit combustion products, improvised explosive devices, and diesel exhaust particles. Once inhaled, these hazardous substances can activate lung immune and structural cells to initiate numerous cell-signaling pathways such as oxidative stress, Toll-like receptors, and cytokine-driven cell injury (e.g., interleukin-33). These biological events may lead to a pro-inflammatory response and airway hyperresponsiveness. Additionally, exposures to PM and other environmental hazards may predispose military personnel and contractors to more severe disease due to the interactions of those hazardous materials with subsequent exposures to allergens and cigarette smoke. Understanding how airborne exposures during deployment contribute to DRLD may identify effective targets to alleviate respiratory diseases and improve quality of life in veterans and active duty military personnel.
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Affiliation(s)
- Reena Berman
- Department of Medicine, National Jewish Health, 1400 Jackson Street, Denver, Colorado 80206, United States
| | - Cecile S Rose
- Department of Medicine, National Jewish Health, 1400 Jackson Street, Denver, Colorado 80206, United States
| | - Gregory P Downey
- Department of Medicine, National Jewish Health, 1400 Jackson Street, Denver, Colorado 80206, United States
| | - Brian J Day
- Department of Medicine, National Jewish Health, 1400 Jackson Street, Denver, Colorado 80206, United States
| | - Hong Wei Chu
- Department of Medicine, National Jewish Health, 1400 Jackson Street, Denver, Colorado 80206, United States
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Schiffers C, Lundblad LKA, Hristova M, Habibovic A, Dustin CM, Daphtary N, Aliyeva M, Seward DJ, Janssen-Heininger YMW, Wouters EFM, Reynaert NL, van der Vliet A. Downregulation of DUOX1 function contributes to aging-related impairment of innate airway injury responses and accelerated senile emphysema. Am J Physiol Lung Cell Mol Physiol 2021; 321:L144-L158. [PMID: 33951398 DOI: 10.1152/ajplung.00021.2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Aging is associated with a gradual loss of lung function due to increased cellular senescence, decreased regenerative capacity, and impaired innate host defense. One important aspect of innate airway epithelial host defense to nonmicrobial triggers is the secretion of alarmins such as IL-33 and activation of type 2 inflammation, which were previously found to depend on activation of the NADPH oxidase (NOX) homolog DUOX1, and redox-dependent signaling pathways that promote alarmin secretion. Here, we demonstrate that normal aging of C57BL/6J mice resulted in markedly decreased lung innate epithelial type 2 responses to exogenous triggers such as the airborne allergen Dermatophagoides pteronyssinus, which was associated with marked downregulation of DUOX1, as well as DUOX1-mediated redox-dependent signaling. DUOX1 deficiency was also found to accelerate age-related airspace enlargement and decline in lung function but did not consistently affect other features of lung aging such as senescence-associated inflammation. Intriguingly, observations of age-related DUOX1 downregulation and enhanced airspace enlargement due to DUOX1 deficiency in C57BL/6J mice, which lack a functional mitochondrial nicotinamide nucleotide transhydrogenase (NNT), were much less dramatic in C57BL/6NJ mice with normal NNT function, although the latter mice also displayed impaired innate epithelial injury responses with advancing age. Overall, our findings indicate a marked aging-dependent decline in (DUOX1-dependent) innate airway injury responses to external nonmicrobial triggers, but the impact of aging on DUOX1 downregulation and its significance for age-related senile emphysema development was variable between different C57BL6 substrains, possibly related to metabolic alterations due to differences in NNT function.
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Affiliation(s)
- Caspar Schiffers
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont.,Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Lennart K A Lundblad
- Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Milena Hristova
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Aida Habibovic
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Christopher M Dustin
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Nirav Daphtary
- Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Minara Aliyeva
- Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - David J Seward
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Yvonne M W Janssen-Heininger
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Emiel F M Wouters
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands.,Ludwig Boltzman Institute for Lung Health, Vienna, Austria
| | - Niki L Reynaert
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Albert van der Vliet
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont
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Cagle L, Linderholm A, Franzi L, Hoehne S, Last J, Kenyon N, Illek B, Harper R. Role of Dual Oxidases in Ventilator-induced Lung Injury. Am J Respir Cell Mol Biol 2021; 64:208-215. [PMID: 33253594 PMCID: PMC7874397 DOI: 10.1165/rcmb.2020-0197oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 10/28/2020] [Indexed: 11/24/2022] Open
Abstract
Positive-pressure ventilation results in ventilator-induced lung injury, and few therapeutic modalities have been successful at limiting the degree of injury to the lungs. Understanding the primary drivers of ventilator-induced lung injury will aid in the development of specific treatments to ameliorate the progression of this syndrome. There are conflicting data for the role of neutrophils in acute respiratory distress syndrome pathogenesis. Here, we specifically examined the importance of neutrophils as a primary driver of ventilator-induced lung injury in a mouse model known to have impaired ability to recruit neutrophils in previous models of inflammation. We exposed Duoxa+/+ and Duoxa-/- mice to low- or high-tidal volume ventilation with or without positive end-expiratory pressure (PEEP) and recruitment maneuvers for 4 hours. Absolute neutrophils in BAL fluid were significantly reduced in Duoxa-/- mice compared with Duoxa+/+ mice (6.7 cells/μl; 16.4 cells/μl; P = 0.003), consistent with our hypothesis that neutrophil translocation across the capillary endothelium is reduced in the absence of DUOX1 or DUOX2 in response to ventilator-induced lung injury. Reduced lung neutrophilia was not associated with a reduction in overall lung injury in this study, suggesting that neutrophils do not play an important role in early features of acute lung injury. Surprisingly, Duoxa-/- mice exhibited significant hypoxemia, as measured by the arterial oxygen tension/fraction of inspired oxygen ratio and arterial oxygen content, which was out of proportion with that seen in the Duoxa+/+ mice (141, 257, P = 0.012). These findings suggest a role for dual oxidases to limit physiologic impairment during early ventilator-induced lung injury.
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Affiliation(s)
- Laura Cagle
- University of California Lung Center, University of California, Davis, Davis, California
| | - Angela Linderholm
- University of California Lung Center, University of California, Davis, Davis, California
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of California, Davis, Sacramento, California
- Department of Veterans Affairs, Northern California Health Care System, Mather, California; and
| | - Lisa Franzi
- University of California Lung Center, University of California, Davis, Davis, California
| | - Sabrina Hoehne
- University of California Lung Center, University of California, Davis, Davis, California
| | - Jerold Last
- University of California Lung Center, University of California, Davis, Davis, California
| | - Nicholas Kenyon
- University of California Lung Center, University of California, Davis, Davis, California
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of California, Davis, Sacramento, California
- Department of Veterans Affairs, Northern California Health Care System, Mather, California; and
| | - Beate Illek
- UCSF Benioff Children’s Hospital, Children’s Hospital Oakland Research Institute, Oakland, California
| | - Richart Harper
- University of California Lung Center, University of California, Davis, Davis, California
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of California, Davis, Sacramento, California
- Department of Veterans Affairs, Northern California Health Care System, Mather, California; and
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4
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Schiffers C, van de Wetering C, Bauer RA, Habibovic A, Hristova M, Dustin CM, Lambrichts S, Vacek PM, Wouters EF, Reynaert NL, van der Vliet A. Downregulation of epithelial DUOX1 in chronic obstructive pulmonary disease. JCI Insight 2021; 6:142189. [PMID: 33301419 PMCID: PMC7934842 DOI: 10.1172/jci.insight.142189] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 12/02/2020] [Indexed: 02/06/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a chronic respiratory disease characterized by small airway remodeling and alveolar emphysema due to environmental stresses such as cigarette smoking (CS). Oxidative stress is commonly implicated in COPD pathology, but recent findings suggest that one oxidant-producing NADPH oxidase homolog, dual oxidase 1 (DUOX1), is downregulated in the airways of patients with COPD. We evaluated lung tissue sections from patients with COPD for small airway epithelial DUOX1 protein expression, in association with measures of lung function and small airway and alveolar remodeling. We also addressed the impact of DUOX1 for lung tissue remodeling in mouse models of COPD. Small airway DUOX1 levels were decreased in advanced COPD and correlated with loss of lung function and markers of emphysema and remodeling. Similarly, DUOX1 downregulation in correlation with extracellular matrix remodeling was observed in a genetic model of COPD, transgenic SPC-TNF-α mice. Finally, development of subepithelial airway fibrosis in mice due to exposure to the CS-component acrolein, or alveolar emphysema induced by administration of elastase, were in both cases exacerbated in Duox1-deficient mice. Collectively, our studies highlight that downregulation of DUOX1 may be a contributing feature of COPD pathogenesis, likely related to impaired DUOX1-mediated innate injury responses involved in epithelial homeostasis.
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Affiliation(s)
- Caspar Schiffers
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA.,Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, Netherlands
| | - Cheryl van de Wetering
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA.,Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, Netherlands
| | - Robert A Bauer
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Aida Habibovic
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Milena Hristova
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Christopher M Dustin
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Sara Lambrichts
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, Netherlands
| | - Pamela M Vacek
- Department of Medical Biostatistics, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Emiel Fm Wouters
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, Netherlands.,Ludwig Boltzman Institute for Lung Health, Vienna, Austria
| | - Niki L Reynaert
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, Netherlands
| | - Albert van der Vliet
- Department of Pathology and Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
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van der Vliet A, Danyal K, Heppner DE. Dual oxidase: a novel therapeutic target in allergic disease. Br J Pharmacol 2018; 175:1401-1418. [PMID: 29405261 DOI: 10.1111/bph.14158] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/17/2018] [Accepted: 01/22/2018] [Indexed: 12/11/2022] Open
Abstract
NADPH oxidases (NOXs) represent a family of enzymes that mediate regulated cellular production of reactive oxygen species (ROS) and play various functional roles in physiology. Among the NOX family, the dual oxidases DUOX1 and DUOX2 are prominently expressed in epithelial cell types at mucosal surfaces and have therefore been considered to have important roles in innate host defence pathways. Recent studies have revealed important insights into the host defence mechanisms of DUOX enzymes, which control innate immune response pathways in response to either microbial or allergic triggers. In this review, we discuss the current level of understanding with respect to the biological role(s) of DUOX enzymes and the unique role of DUOX1 in mediating innate immune responses to epithelial injury and allergens and in the development of allergic disease. These novel findings highlight DUOX1 as an attractive therapeutic target, and opportunities for the development of selective inhibitor strategies will be discussed.
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Affiliation(s)
- Albert van der Vliet
- Department of Pathology and Laboratory Medicine, The Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, VT, USA.,Vermont Lung Center, University of Vermont, Burlington, VT, USA
| | - Karamatullah Danyal
- Department of Pathology and Laboratory Medicine, The Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, VT, USA.,Vermont Lung Center, University of Vermont, Burlington, VT, USA
| | - David E Heppner
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA.,Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
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Redox Regulation of Inflammatory Processes Is Enzymatically Controlled. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:8459402. [PMID: 29118897 PMCID: PMC5651112 DOI: 10.1155/2017/8459402] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 07/06/2017] [Accepted: 07/25/2017] [Indexed: 12/11/2022]
Abstract
Redox regulation depends on the enzymatically controlled production and decay of redox active molecules. NADPH oxidases, superoxide dismutases, nitric oxide synthases, and others produce the redox active molecules superoxide, hydrogen peroxide, nitric oxide, and hydrogen sulfide. These react with target proteins inducing spatiotemporal modifications of cysteine residues within different signaling cascades. Thioredoxin family proteins are key regulators of the redox state of proteins. They regulate the formation and removal of oxidative modifications by specific thiol reduction and oxidation. All of these redox enzymes affect inflammatory processes and the innate and adaptive immune response. Interestingly, this regulation involves different mechanisms in different biological compartments and specialized cell types. The localization and activity of distinct proteins including, for instance, the transcription factor NFκB and the immune mediator HMGB1 are redox-regulated. The transmembrane protein ADAM17 releases proinflammatory mediators, such as TNFα, and is itself regulated by a thiol switch. Moreover, extracellular redox enzymes were shown to modulate the activity and migration behavior of various types of immune cells by acting as cytokines and/or chemokines. Within this review article, we will address the concept of redox signaling and the functions of both redox enzymes and redox active molecules in innate and adaptive immune responses.
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