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Terada S, Matsumoto H, Nishi K, Kogo M, Nomura N, Tashima N, Morimoto C, Sunadome H, Nagasaki T, Oguma T, Nakatsuka Y, Murase K, Kawaguchi T, Tabara Y, Sonomura K, Matsuda F, Chin K, Hirai T. Association of lower plasma citric acid with prolonged cough: the Nagahama study. Sci Rep 2023; 13:13921. [PMID: 37626075 PMCID: PMC10457296 DOI: 10.1038/s41598-023-40878-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
Little is known about the association of prolonged cough, a common and troublesome symptom, with metabolic pathways. We aimed to clarify this association using data from the Nagahama cohort, a prospective study of participants from the general population. Self-report questionnaires on prolonged cough were collected at baseline and 5-year follow-up assessments. Blood tests at follow-up were used for gas chromatography-mass spectrometry-based metabolomics. The association between metabolites and prolonged cough was examined using the partial least squares discriminant analysis and multiple regression analysis. Among the 7432 participants, 632 had newly developed prolonged cough at follow-up, which was defined as "new-onset prolonged cough". Low plasma citric acid was significantly associated with new-onset prolonged cough, even after the adjustment of confounding factors including the presence of asthma, upper airway cough syndrome (UACS), and gastroesophageal reflux disease (GERD). A similar association was observed for isocitric acid, 3-hydroxybutyric acid, and 3-hydroxyisobutyric acid. The analysis of these four metabolites revealed that citric acid had the strongest association with new-onset prolonged cough. This significant association remained even when the analysis was confined to participants with UACS or GERD at baseline or follow-up, and these associations were also observed in participants (n = 976) who had prolonged cough at follow-up regardless of baseline status. In conclusion, low blood citric acid may be associated with prolonged cough.
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Affiliation(s)
- Satoru Terada
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hisako Matsumoto
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.
- Department of Respiratory Medicine and Allergology, Faculty of Medicine, Kindai University, 377-2 Ohno-Higashi, Osakasayama City, Osaka, Japan.
| | - Kenta Nishi
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Mariko Kogo
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Natsuko Nomura
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Noriyuki Tashima
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Chie Morimoto
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hironobu Sunadome
- Department of Respiratory Care and Sleep Control Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tadao Nagasaki
- Department of Respiratory Care and Sleep Control Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tsuyoshi Oguma
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshinari Nakatsuka
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kimihiko Murase
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takahisa Kawaguchi
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yasuharu Tabara
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Graduate School of Public Health, Shizuoka Graduate University of Public Health, Shizuoka, Japan
| | - Kazuhiro Sonomura
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Technology Research Laboratory, Life Science Research Center, Shimadzu Corporation, Kyoto, Japan
| | - Fumihiko Matsuda
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kazuo Chin
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Department of Sleep Medicine and Respiratory Care, Division of Sleep Medicine, Nihon University of Medicine, Tokyo, Japan
| | - Toyohiro Hirai
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Jo S, Jin BJ, Lee SH, Jo HR, Park JM, Hwang KG, Rho M, Kim TH, Cho SH. Eosinophil-derived interferon-γ drives transmembrane protein 119-induced new bone formation in chronic rhinosinusitis with nasal polyps. Int Forum Allergy Rhinol 2023; 13:242-254. [PMID: 35984636 DOI: 10.1002/alr.23076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/17/2022] [Accepted: 08/15/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND Chronic rhinosinusitis with nasal polyps (CRSwNP) is a chronic inflammatory sinonasal disease characterized by eosinophilic infiltration and new bone formation. These changes indicate the severity and prognosis of CRSwNP and may be closely linked to each other. METHODS We performed RNA sequencing to screen specific osteogenic molecules and validated transmembrane protein 119 (TMEM119) expression by quantitative polymerase chain reaction (qPCR) and immunohistochemistry analyses. TMEM119 knockdown was performed to observe the downregulation of bone mineralization. We validated the bone-forming activity of interferon-γ (IFN-γ) and its signaling pathways in cultured primary sinus bone cells. Cellular sources of IFN-γ were identified using immunohistochemistry and immunofluorescence analyses. Interleukin-4-eosinophil-IFN-γ axis and the effect of dupilumab were investigated in Eol-1 cells. RESULTS We observed elevated IFN-γ levels and eosinophils in the nasal fluid and predominantly eosinophil-derived IFN-γ in the sinus mucosa of patients with CRSwNP. TMEM119 expression and bone-forming activities were increased in the osteitic and primary sinus bone cells of CRSwNP. IFN-γ treatment enhanced bone mineralization and TMEM119 expression via signal transducer and activator of transcription 1 (STAT1) signaling. Moreover, TMEM119 knockdown inhibited sinus bone cell mineralization and dupilumab attenuated IFN-γ secretion by IL4-stimulated Eol-1 cells. CONCLUSION Eosinophil-derived IFN-γ promotes the bone-forming activities of sinus bone cells via the STAT1-TMEM119 signaling pathway. Interleukin-4-eosinophil-IFN-γ axis may be crucial for TMEM119-mediated new bone formation in CRSwNP.
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Affiliation(s)
- Sungsin Jo
- Hanyang University Institute for Rheumatology Research (HYIRR), Seoul, Republic of Korea
| | - Bong Joon Jin
- Department of Otorhinolaryngology-Head and Neck Surgery, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Seung Hoon Lee
- Hanyang University Institute for Rheumatology Research (HYIRR), Seoul, Republic of Korea
| | - Hye-Ryeong Jo
- Hanyang University Institute for Rheumatology Research (HYIRR), Seoul, Republic of Korea
| | - Joo Mi Park
- Hanyang University Institute for Rheumatology Research (HYIRR), Seoul, Republic of Korea
| | - Kyung-Gyun Hwang
- Division of Oral and Maxillofacial Surgery, Department of Dentistry, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - Mina Rho
- Department of Computer Science, Hanyang University, Seoul, Republic of Korea
| | - Tae-Hwan Kim
- Hanyang University Institute for Rheumatology Research (HYIRR), Seoul, Republic of Korea.,Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - Seok Hyun Cho
- Department of Otorhinolaryngology-Head and Neck Surgery, Hanyang University College of Medicine, Seoul, Republic of Korea
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Tai J, Shin JM, Park J, Han M, Kim TH. Oxidative Stress and Antioxidants in Chronic Rhinosinusitis with Nasal Polyps. Antioxidants (Basel) 2023; 12:antiox12010195. [PMID: 36671057 PMCID: PMC9854928 DOI: 10.3390/antiox12010195] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/10/2023] [Accepted: 01/12/2023] [Indexed: 01/18/2023] Open
Abstract
Oxidative stress results from an imbalance between the production of reactive oxygen species and the body's antioxidant defense system. It plays an important role in the regulation of the immune response and can be a pathogenic factor in various diseases. Chronic rhinosinusitis (CRS) is a complex and heterogeneous disease with various phenotypes and endotypes. Recently, an increasing number of studies have proposed that oxidative stress (caused by both environmental and intrinsic stimuli) plays an important role in the pathogenesis and persistence of CRS. This has attracted the attention of several researchers. The relationship between the presence of reactive oxygen species composed of free radicals and nasal polyp pathology is a key topic receiving attention. This article reviews the role of oxidative stress in respiratory diseases, particularly CRS, and introduces potential therapeutic antioxidants that may offer targeted treatment for CRS.
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Affiliation(s)
- Junhu Tai
- Department of Otorhinolaryngology—Head & Neck Surgery, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Jae-Min Shin
- Department of Otorhinolaryngology—Head & Neck Surgery, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Jaehyung Park
- Department of Otorhinolaryngology—Head & Neck Surgery, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Munsoo Han
- Department of Otorhinolaryngology—Head & Neck Surgery, College of Medicine, Korea University, Seoul 02841, Republic of Korea
- Mucosal Immunology Institute, College of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Tae Hoon Kim
- Department of Otorhinolaryngology—Head & Neck Surgery, College of Medicine, Korea University, Seoul 02841, Republic of Korea
- Mucosal Immunology Institute, College of Medicine, Korea University, Seoul 02841, Republic of Korea
- Correspondence: ; Tel.: +82-02-920-5486
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Lee SH, Han MS, Lee TH, Lee DB, Park JH, Lee SH, Kim TH. Hydrogen peroxide attenuates rhinovirus-induced anti-viral interferon secretion in sinonasal epithelial cells. Front Immunol 2023; 14:1086381. [PMID: 36860857 PMCID: PMC9968966 DOI: 10.3389/fimmu.2023.1086381] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 02/01/2023] [Indexed: 02/15/2023] Open
Abstract
Background Altered innate defense mechanisms, including an imbalance between oxidants and antioxidants release, have been implicated in the pathogenesis of chronic rhinosinusitis (CRS). The aim of this study is to investigate whether oxidative stress may attenuate the secretion of anti-viral interferons in human sinonasal mucosa. Methods The levels of H2O2 in nasal secretion were increased in patients with CRS with nasal polyps, compared with that of CRS patients without nasal polyps and control subjects. Normal sinonasal epithelial cells derived from healthy subjects were cultured under an air-liquid interface. The cultured cells were infected with rhinovirus 16 (RV 16) or treated with poly (I: C), TLR3 agonist, after being pretreated with an oxidative stressor, H2O2 or antioxidant, N-acetylcysteine (NAC). Thereafter, the expression levels of type I (IFN-β) and type III (IFN-λ1 and λ2) interferons and interferon-stimulated genes (ISGs) were evaluated with RT-qPCR, ELISA, and western blot. Results The data showed that the production of type I (IFN-β) and type III (IFN-λ1 and λ2) interferons and ISGs was upregulated in cells infected with RV 16 or treated with poly (I: C). However, their up-regulated expression was attenuated in cells pretreated with H2O2, but not inhibited in cells pretreated with NAC. In line with these data, the up-regulated expression of TLR3, RIG-1, MDA5, and IRF3 was reduced in cells pretreated with H2O2, but not attenuated in cells treated with NAC. Furthermore, cells transfected with Nrf2 siRNA showed decreased secretion of anti-viral interferons whereas sulforaphane treatment enhanced the secretory capacity of antiviral interferons. Conclusions These results suggest that the production of RV16-induced antiviral interferons may be attenuated by oxidative stress.
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Affiliation(s)
- Sang Hag Lee
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Mun Soo Han
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Tae Hoon Lee
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Da Bin Lee
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Jae Hyung Park
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Seung Hyeok Lee
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Tae Hoon Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul, Republic of Korea
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Czerwaty K, Piszczatowska K, Brzost J, Ludwig N, Szczepański MJ, Dżaman K. Immunological Aspects of Chronic Rhinosinusitis. Diagnostics (Basel) 2022; 12:diagnostics12102361. [PMID: 36292050 PMCID: PMC9600442 DOI: 10.3390/diagnostics12102361] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 11/16/2022] Open
Abstract
Chronic rhinosinusitis (CRS) is related to persistent inflammation with a dysfunctional relationship between environmental agents and the host immune system. Disturbances in the functioning of the sinus mucosa lead to common clinical symptoms. The major processes involved in the pathogenesis of CRS include airway epithelial dysfunctions that are influenced by external and host-derived factors which activate multiple immunological mechanisms. The molecular bases for CRS remain unclear, although some factors commonly correspond to the disease: bacterial, fungal and viral infections, comorbidity diseases, genetic dysfunctions, and immunodeficiency. Additionally, air pollution leads increased severity of symptoms. CRS is a heterogeneous group of sinus diseases with different clinical courses and response to treatment. Immunological pathways vary depending on the endotype or genotype of the patient. The recent knowledge expansion into mechanisms underlying the pathogenesis of CRS is leading to a steadily increasing significance of precision medicine in the treatment of CRS. The purpose of this review is to summarize the current state of knowledge regarding the immunological aspects of CRS, which are essential for ensuring more effective treatment strategies.
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Affiliation(s)
- Katarzyna Czerwaty
- Department of Otolaryngology, The Medical Centre of Postgraduate Education, 01-813 Warsaw, Poland
| | | | - Jacek Brzost
- The Children’s Memorial Health Institute, 04-730 Warsaw, Poland
| | - Nils Ludwig
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Mirosław J. Szczepański
- Department of Otolaryngology, The Medical Centre of Postgraduate Education, 01-813 Warsaw, Poland
- Department of Biochemistry, Medical University of Warsaw, 02-097 Warsaw, Poland
- Correspondence:
| | - Karolina Dżaman
- Department of Otolaryngology, The Medical Centre of Postgraduate Education, 01-813 Warsaw, Poland
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Kvarantan A, Balta V, Zarkovic N, Horvat T, Vukovic T, Zarkovic K, Kalogjera L. Association between aryl hydrocarbon receptor and 4-hydroxynonenal in oxidative stress-mediated chronic rhinosinusitis with nasal polyps. EUR J INFLAMM 2021. [DOI: 10.1177/20587392211065613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objective Сhronic rhinosinusitis with nasal polyps (CRSwNPs) is a distinct entity within the chronic rhinosinusitis group of diseases, which are chronic upper airway diseases with several pheno- and endotypes. Oxidative stress plays an important role in the pathogenesis of CRSwNPs. The aim was to assess the association between expression of the aryl hydrocarbon receptor (AhR) and 4-hydroxynonenal (4-HNE) in patients with CRSwNPs. Methods The study included 26 patients who underwent endoscopic sinus surgery: Fourteen patients with CRSwNPs, and 12 controls with healthy sinus mucosa. Expression of AhR and 4-HNE was assessed in tissue samples using immunohistochemistry. The level of 4-HNE in serum samples was measured using the ELISA assay. Total oxidative capacity (TOC) was assessed by measuring the peroxidase activity. Results Higher levels of 4-HNE expression were observed in tissues (3, range 1–3 vs. 0, range 0–0 p<0.001) and serum (27.7±11.5 vs 9.8±7.7 pmol/mg, p < 0.001) samples of CRSwNPs patients, as compared to healthy controls. Higher expression of AhR was found in inflammatory cells (plasma cells, lymphocytes, eosinopholes) of CRSwNPs patients, compared to controls (3, range 1–3 vs. 2, range 1–2, p = 0.001). There were no differences in TOC across groups (0.0285±0.0207 vs 0.02, 978±0.0197 µM H2O2 eq., p = 0.848). Patients with bronchial asthma (57%) had abundant eosinophil in tissue samples. Patients with recalcitrant CRSwNPs had higher 4-HNE serum levels, compared to non-recalcitrant cases (27.3 vs 24.2 pmol/mg, p = 0.339). Conclusion Patients suffering from CRSwNPs have oxidative stress–mediated overexpression of AhR, which is linked to a chronic inflammatory response in the paranasal sinus tissues.
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Affiliation(s)
- Aigerim Kvarantan
- Department of Otorhinolaryngology, County Hospital Čakovec, Čakovec, Croatia
| | - Vedran Balta
- Department of Biology, Faculty of Science, Zagreb University, Zagreb, Croatia
| | - Neven Zarkovic
- Department of Molecular Medicine, Laboratory for Oxidative Stress, Ruđer Bošković Research Institute, Zagreb, Croatia
| | - Tea Horvat
- Department of Molecular Medicine, Laboratory for Oxidative Stress, Ruđer Bošković Research Institute, Zagreb, Croatia
| | - Tea Vukovic
- Department of Molecular Medicine, Laboratory for Oxidative Stress, Ruđer Bošković Research Institute, Zagreb, Croatia
| | - Kamelija Zarkovic
- Department of Pathology, University Hospital Zagreb, Zagreb, Croatia
| | - Livije Kalogjera
- Department of ENT & Head and Neck Surgery, University Hospital “Sestre Milosrdnice”, Zagreb, Croatia
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Ashtiwi NM, Sarr D, Rada B. DUOX1 in mammalian disease pathophysiology. J Mol Med (Berl) 2021; 99:743-754. [PMID: 33704512 PMCID: PMC8315118 DOI: 10.1007/s00109-021-02058-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 02/23/2021] [Accepted: 02/25/2021] [Indexed: 01/17/2023]
Abstract
Dual oxidase 1 (DUOX1) is a member of the protein family of nicotinamide adenine dinucleotide phosphate (NADPH) oxidases. DUOX1 has several normal physiological, immunological, and biochemical functions in different parts of the body. Dysregulated oxidative metabolism interferes with various disease pathologies and numerous therapeutic options are based on targeting cellular redox pathways. DUOX1 forms an important enzymatic source of biological oxidants, and DUOX1 expression is frequently dysregulated in various diseases. While this review shortly addresses the biochemical and cellular properties and proposed physiological roles of DUOX1, its main purpose is to summarize the current knowledge with respect to the potential role of DUOX1 enzyme in disease pathology, especially in mammalian organisms. Although DUOX1 is normally prominently expressed in epithelial lineages, it is frequently silenced in epithelial-derived cancers by epigenetic mechanisms. While an abundance of information is available on DUOX1 transcription in different diseases, an increasing number of mechanistic studies indicate a causative relationship between DUOX1 function and disease pathophysiology. Additionally, specific functions of the DUOX1 maturation factor, DUOXA1, will also be addressed. Lastly, urgent and outstanding questions on the field of DUOX1 will be discussed that could provide valuable new diagnostic tools and novel therapeutic options.
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Affiliation(s)
- Nuha Milad Ashtiwi
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
| | - Demba Sarr
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
| | - Balázs Rada
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, USA.
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8
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Yang HT, Huang YH, Yang GW. Mini review: immunologic functions of dual oxidases in mucosal systems of vertebrates. BRAZ J BIOL 2020; 80:948-956. [DOI: 10.1590/1519-6984.208749] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 05/08/2019] [Indexed: 12/30/2022] Open
Abstract
Abstract Mucosal epithelial cells act as the first immunologic barrier of organisms, and contact directly with pathogens. Therefore, hosts must have differential strategies to combat pathogens efficiently. Reactive oxygen species (ROS), as a kind of oxidizing agents, participates in the early stage of killing pathogens quickly. Recent reports have revealed that dual oxidase (DUOX) plays a key role in mucosal immunity. And the DUOX is a transmembrane protein which produces ROS as their primary enzymatic products. This process is an important pattern for eliminating pathogens. In this review, we highlight the DUOX immunologic functions in the respiratory and digestive tract of vertebrates.
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Rouadi PW, Idriss SA, Naclerio RM, Peden DB, Ansotegui IJ, Canonica GW, Gonzalez-Diaz SN, Rosario Filho NA, Ivancevich JC, Hellings PW, Murrieta-Aguttes M, Zaitoun FH, Irani C, Karam MR, Bousquet J. Immunopathological features of air pollution and its impact on inflammatory airway diseases (IAD). World Allergy Organ J 2020; 13:100467. [PMID: 33042360 PMCID: PMC7534666 DOI: 10.1016/j.waojou.2020.100467] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 08/31/2020] [Accepted: 09/11/2020] [Indexed: 12/14/2022] Open
Abstract
Air pollution causes significant morbidity and mortality in patients with inflammatory airway diseases (IAD) such as allergic rhinitis (AR), chronic rhinosinusitis (CRS), asthma, and chronic obstructive pulmonary disease (COPD). Oxidative stress in patients with IAD can induce eosinophilic inflammation in the airways, augment atopic allergic sensitization, and increase susceptibility to infection. We reviewed emerging data depicting the involvement of oxidative stress in IAD patients. We evaluated biomarkers, outcome measures and immunopathological alterations across the airway mucosal barrier following exposure, particularly when accentuated by an infectious insult.
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Key Words
- AR, Allergic rhinitis
- Air pollution
- Antioxidant
- COPD, Chronic obstructive pulmonary disease
- CRS, Chronic rhinosinusitis
- DEP, Diesel exhaust particles
- IAD, Inflammatory airway diseases
- IL, Interleukin
- ILC, Innate lymphoid cells
- Inflammatory airway disease
- NOx, Nitrogen oxides
- Oxidative stress biomarkers
- PAH, Polycyclic aromatic hydrocarbons
- PM, Particulate matter
- ROS, Reactive oxygen species
- TBS, Tobacco smoke
- TLR, Toll-like receptors
- Tobacco smoke
- Treg, Regulatory T cell
- VOCs, Volatile organic compounds
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Affiliation(s)
- Philip W. Rouadi
- Department of Otolaryngology-Head and Neck Surgery, Eye and Ear University Hospital, Beirut, Lebanon
| | - Samar A. Idriss
- Department of Otolaryngology-Head and Neck Surgery, Eye and Ear University Hospital, Beirut, Lebanon
| | - Robert M. Naclerio
- Johns Hopkins University Department of Otolaryngology - Head and Neck Surgery, Baltimore, MD, USA
| | - David B. Peden
- UNC Center for Environmental Medicine, Asthma, and Lung Biology, Division of Allergy, Immunology and Rheumatology, Department of Pediatrics UNS School of Medicine, USA
| | - Ignacio J. Ansotegui
- Department of Allergy and Immunology, Hospital Quironsalud Bizkaia, Bilbao, Spain
| | | | - Sandra Nora Gonzalez-Diaz
- University Autonoma de Nuevo Leon Facultad de Medicina y Hospital Universitario U.A.N.L, Monterrey, NL, c.p. 64460, México
| | | | - Juan Carlos Ivancevich
- Faculty of Medicine, Universidad del Salvador, Buenos Aires, Argentina and Head of Allergy and Immunology at the Santa Isabel Clinic, Buenos Aires, Argentina
| | - Peter W. Hellings
- Department of Otorhinolaryngology, University Hospitals Leuven, Leuven, Belgium
- Department of Otorhinolaryngology, Academic Medical Center Amsterdam, The Netherlands - Department Otorhinolaryngology, University Hospital Ghent, Belgium
| | | | - Fares H. Zaitoun
- LAUMC Rizk Hospital, Otolaryngology-Allergy Department, Beirut, Lebanon
| | - Carla Irani
- Department of Internal Medicine and Infectious Diseases, St Joseph University, Hotel Dieu de France Hospital, Beirut, Lebanon
| | - Marilyn R. Karam
- Division of Rheumatology, Allergy and Clinical Immunology, Department of Internal Medicine, American University of Beirut, Beirut, Lebanon
| | - Jean Bousquet
- INSERM U 1168, VIMA: Ageing and Chronic Diseases Epidemiological and Public Health Approaches, Villejuif, France
- University Versailles St-Quentin-en-Yvelines, France
- Allergy-Centre-Charité, Charité–Universitätsmedizin Berlin, Berlin, Germany
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10
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de Faria CC, Fortunato RS. The role of dual oxidases in physiology and cancer. Genet Mol Biol 2020; 43:e20190096. [PMID: 32453337 PMCID: PMC7265977 DOI: 10.1590/1678-4685/gmb-2019-0096] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 01/24/2020] [Indexed: 01/17/2023] Open
Abstract
NOX/DUOX enzymes are transmembrane proteins that carry electrons through biological membranes generating reactive oxygen species. The NOX family is composed of seven members, which are NOX1 to NOX5 and DUOX1 and 2. DUOX enzymes were initially called thyroid oxidases, based on their high expression level in the thyroid tissue. However, DUOX expression has been documented in several extrathyroid tissues, mostly at the apical membrane of the salivary glands, the airways, and the intestinal tract, revealing additional cellular functions associated with DUOX-related H2O2 generation. In this review, we will briefly summarize the current knowledge regarding DUOX structure and physiological functions, as well as their possible role in cancer biology.
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Affiliation(s)
- Caroline Coelho de Faria
- Universidade Federal do Rio de Janeiro, Instituto de Biofísica Carlos Chagas
Filho, Rio de Janeiro, RJ, Brazil
| | - Rodrigo Soares Fortunato
- Universidade Federal do Rio de Janeiro, Instituto de Biofísica Carlos Chagas
Filho, Rio de Janeiro, RJ, Brazil
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11
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Zheng K, Hao J, Xiao L, Wang M, Zhao Y, Fan D, Li Y, Wang X, Zhang L. Expression of nicotinamide adenine dinucleotide phosphate oxidase in chronic rhinosinusitis with nasal polyps. Int Forum Allergy Rhinol 2020; 10:646-655. [PMID: 32052917 DOI: 10.1002/alr.22530] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 11/30/2019] [Accepted: 01/03/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase produces reactive oxygen species (ROS) involved in oxidative stress and signal transduction. Recent studies have suggested that NADPH oxidase is associated with the pathogenesis of chronic rhinosinusitis with nasal polyps (CRSwNP). The aim of this study was to detect the expression of NADPH oxidase subunits and 4-hydroxynonenal (4-HNE) in nasal polyp tissue and normal nasal mucosa, in order to explore the possible role played by NADPH oxidase in the pathogenesis of CRSwNP. METHODS Thirteen patients with CRSwNP and 9 normal control subjects were selected to participate in this study, in which we evaluated the expression of different NADPH oxidase subunits (gp91phox , p67phox , p47phox , and p22phox ) in nasal polyp (NP) tissue and control mucosa by Western blotting and real-time polymerase chain reaction (PCR). Immunohistochemistry and immunofluorescence staining were used to detect expression of the p67phox subunit and 4-HNE in NP tissue and normal nasal mucosa. RESULTS Western blot and real-time PCR results showed that p67phox expression was significantly increased in NP tissue when compared with its expression in control mucosa (p = 0.004). p67phox was expressed in the eosinophils and neutrophils found in NP tissue, but not in the macrophages. Additionally, the levels of 4-HNE expression were also significantly increased in NP tissue when compared with control mucosa (p = 0.001). CONCLUSION The levels of p67phox messenger RNA (mRNA) and protein as well as 4-HNE were both upregulated in NP tissue, suggesting that p67phox and oxidative stress play roles in the pathogenesis of CRSwNP.
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Affiliation(s)
- Kaili Zheng
- Department of Otolaryngology Head and Neck Surgery, Department of Allergy, Beijing TongRen Hospital, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Jin Hao
- Department of Otolaryngology Head and Neck Surgery, Department of Allergy, Beijing TongRen Hospital, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Capital Medical University, Beijing, China
| | - Lei Xiao
- Department of Medicine, University of Illinois at Chicago, Chicago, IL
| | - Min Wang
- Department of Otolaryngology Head and Neck Surgery, Department of Allergy, Beijing TongRen Hospital, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Yan Zhao
- Department of Otolaryngology Head and Neck Surgery, Department of Allergy, Beijing TongRen Hospital, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Dachuan Fan
- Department of Otolaryngology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Ying Li
- Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Xiangdong Wang
- Department of Otolaryngology Head and Neck Surgery, Department of Allergy, Beijing TongRen Hospital, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Luo Zhang
- Department of Otolaryngology Head and Neck Surgery, Department of Allergy, Beijing TongRen Hospital, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
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12
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Pistochini A, Rossi F, Gallo S, Pirrone C, Preti A, Gornati R, Bernardini G, Castelnuovo P. Multiple gene expression profiling suggests epithelial dysfunction in polypoid chronic rhinosinusitis. ACTA ACUST UNITED AC 2019; 39:169-177. [PMID: 31131836 PMCID: PMC6536031 DOI: 10.14639/0392-100x-2361] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 03/13/2019] [Indexed: 12/13/2022]
Abstract
Chronic rhinosinusitis (CRS) is a heterogeneous inflammatory disorder resulting from a complex gene-environment interaction. Although its aetiology remains elusive, numerous studies reported gene expression alterations of factors apparently implicated in all aspects of the inflammatory response. However, most investigations are limited, unconfirmed analyses of a single gene. Moreover, studies concerning multiple gene expression analyses, usually on inflammatory mediators (e.g. cytokines), show contrasting outcomes in part due to use of heterogeneous samples or methodologies with limited power. In this scenario, our goal was to simultaneously evaluate the expression of a panel of selected genes (AQP5, MUC5AC, CAV1, LTF, COX2, PGDS, TNFα, TGFβ1, MGB1) potentially involved in CRS inflammatory mechanisms. While most of the samples collected were excluded from the analysis because of poor quality RNA, we were able to demonstrate statistically significant downregulation of the AQP5, CAV1, LTF, MGB1 genes in a specific subset of polypoid CRS (patients without typical comorbidities), which might suggest relevant underlying epithelial dysfunction. Further studies are needed to enrich our knowledge on the pathogenesis of CRS. Forthcoming approaches might utilise next-generation RNA sequencing and comprehensive bioinformatics analyses to better characterise the transcriptome profiles of CRS endotypes.
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Affiliation(s)
- A Pistochini
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy.,Department of Otorhinolaryngology, University of Insubria and ASST Sette Laghi, Varese, Italy
| | - F Rossi
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - S Gallo
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy.,Department of Otorhinolaryngology, University of Insubria and ASST Sette Laghi, Varese, Italy
| | - C Pirrone
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - A Preti
- Department of Otorhinolaryngology, University of Milan and IRCCS Multimedica, Ospedale San Giuseppe, Milan, Italy
| | - R Gornati
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy.,"The Protein Factory" Research Center, Politecnico of Milano, ICRM-CNR Milan and University of Insubria, Milan, Italy
| | - G Bernardini
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy.,"The Protein Factory" Research Center, Politecnico of Milano, ICRM-CNR Milan and University of Insubria, Milan, Italy
| | - P Castelnuovo
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy.,Department of Otorhinolaryngology, University of Insubria and ASST Sette Laghi, Varese, Italy
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13
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San Nicoló M, Högerle C, Gellrich D, Eder K, Pfrogner E, Gröger M. The time course of nasal cytokine secretion in patients with aspirin-exacerbated respiratory disease (AERD) undergoing aspirin desensitization: preliminary data. Eur Arch Otorhinolaryngol 2019; 277:445-452. [PMID: 31655881 DOI: 10.1007/s00405-019-05704-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 10/16/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE Aspirin-exacerbated respiratory disease (AERD) is a severe form of chronic rhinosinusitis with nasal polyps (CRSwNP) accompanied by asthma and an aspirin intolerance. The underlying pathomechanism of AERD still remains unclear, recent data suggest a complex inflammatory imbalance. In the present study, we investigated the cytokine patterns in AERD, CRSwNP and healthy control patients. Furthermore, we describe the change in cytokine level in the course of aspirin desensitization (AD) with continuous intake of aspirin. METHODS The study included a total of 104 participants, 48 healthy controls, 45 patients with nasal polyps and 11 patients with AERD undergoing AD. Nasal secretions were analyzed for IL-1β, IL-4, IL-5, IL-10, IL-12, IL-13, IL-17, THF-α, IFN-γ, eotaxin and ECP using Bio-Plex Human Cytokine Assay and Uni-CAP FEIA. Baseline measurements of cytokine levels were performed in all 104 patients; in patients with AERD, follow-up was performed 1-6 and 6-24 months after the initiation of AD. RESULTS Our preliminary results show a TH2 dominated, eosinophilic milieu in AERD patients, which decreased in the first weeks of AD. However, after 6 months of AD, proinflammatory cytokines show a tendency to increase again. Also, TH1 as well as Treg associated cytokine seem to increase over time. CONCLUSIONS For the first time, the present work shows the cytokine pattern in nasal secretions of AERD patients before and during AD. Further investigation of the complex interaction of inflammatory cytokines during AD might reveal important insights into the disease entity of AERD and open up new horizons for a targeted therapy.
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Affiliation(s)
- Marion San Nicoló
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig-Maximilians-University of Munich, Munich, Germany.
| | - Catalina Högerle
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Donata Gellrich
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Katharina Eder
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Elisabeth Pfrogner
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Moritz Gröger
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig-Maximilians-University of Munich, Munich, Germany
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14
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Cho DY, Skinner D, Zhang S, Lazrak A, Lim DJ, Weeks CG, Banks CG, Han CK, Kim SK, Tearney GJ, Matalon S, Rowe SM, Woodworth BA. Korean Red Ginseng aqueous extract improves markers of mucociliary clearance by stimulating chloride secretion. J Ginseng Res 2019; 45:66-74. [PMID: 33437158 PMCID: PMC7790903 DOI: 10.1016/j.jgr.2019.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 08/30/2019] [Accepted: 09/06/2019] [Indexed: 11/26/2022] Open
Abstract
Background Abnormal chloride (Cl-) transport has a detrimental impact on mucociliary clearance in both cystic fibrosis (CF) and non-CF chronic rhinosinusitis. Ginseng is a medicinal plant noted to have anti-inflammatory and antimicrobial properties. The present study aims to assess the capability of red ginseng aqueous extract (RGAE) to promote transepithelial Cl- secretion in nasal epithelium. Methods Primary murine nasal septal epithelial (MNSE) [wild-type (WT) and transgenic CFTR-/-], fisher-rat-thyroid (FRT) cells expressing human WT CFTR, and TMEM16A-expressing human embryonic kidney cultures were utilized for the present experiments. Ciliary beat frequency (CBF) and airway surface liquid (ASL) depth measurements were performed using micro-optical coherence tomography (μOCT). Mechanisms underlying transepithelial Cl- transport were determined using pharmacologic manipulation in Ussing chambers and whole-cell patch clamp analysis. Results RGAE (at 30μg/mL of ginsenosides) significantly increased Cl- transport [measured as change in short-circuit current (ΔISC = μA/cm2)] when compared with control in WT and CFTR-/- MNSE (WT vs control = 49.8±2.6 vs 0.1+/-0.2, CFTR-/- = 33.5±1.5 vs 0.2±0.3, p < 0.0001). In FRT cells, the CFTR-mediated ΔISC attributed to RGAE was small (6.8 ± 2.5 vs control, 0.03 ± 0.01, p < 0.05). In patch clamp, TMEM16A-mediated currents were markedly improved with co-administration of RGAE and uridine 5-triphosphate (8406.3 +/- 807.7 pA) over uridine 5-triphosphate (3524.1 +/- 292.4 pA) or RGAE alone (465.2 +/- 90.7 pA) (p < 0.0001). ASL and CBF were significantly greater with RGAE (6.2+/-0.3 μm vs control, 3.9+/-0.09 μm; 10.4+/-0.3 Hz vs control, 7.3 ± 0.2 Hz; p < 0.0001) in MNSE. Conclusion RGAE augments ASL depth and CBF by stimulating Cl- secretion through CaCC, which suggests therapeutic potential in both CF and non-CF chronic rhinosinusitis.
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Affiliation(s)
- Do-Yeon Cho
- Department of Otolaryngology Head & Neck Surgery, University of Alabama at Birmingham, Birmingham, Alabama, United States.,Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Daniel Skinner
- Department of Otolaryngology Head & Neck Surgery, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Shaoyan Zhang
- Department of Otolaryngology Head & Neck Surgery, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Ahmed Lazrak
- Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, Alabama, United States.,Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Dong Jin Lim
- Department of Otolaryngology Head & Neck Surgery, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Christopher G Weeks
- Department of Otolaryngology Head & Neck Surgery, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Catherine G Banks
- Department of Otolaryngology Head & Neck Surgery, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Chang Kyun Han
- Korea Ginseng Research Institute, Korea Ginseng Corporation, Daejeon, Republic of Korea
| | - Si-Kwan Kim
- Department of Biomedical Chemistry, Konkuk University, Chungju, Republic of Korea
| | - Guillermo J Tearney
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, United States
| | - Sadis Matalon
- Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, Alabama, United States.,Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Steven M Rowe
- Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, Alabama, United States.,Departments of Medicine, Pediatrics, Cell Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Bradford A Woodworth
- Department of Otolaryngology Head & Neck Surgery, University of Alabama at Birmingham, Birmingham, Alabama, United States.,Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, Alabama, United States
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15
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Wang H, Pan L, Liu Z. Neutrophils as a Protagonist and Target in Chronic Rhinosinusitis. Clin Exp Otorhinolaryngol 2019; 12:337-347. [PMID: 31394895 PMCID: PMC6787473 DOI: 10.21053/ceo.2019.00654] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 06/28/2019] [Indexed: 12/13/2022] Open
Abstract
Neutrophils have traditionally been acknowledged as the first immune cells that are recruited to inflamed tissues during acute inflammation. By contrast, their importance in the context of chronic inflammation has been studied in less depth. Neutrophils can be recruited and are largely present in the nasal mucosa of patients with chronic rhinosinusitis (CRS) both in Asians and in Caucasians. Increased infiltration of neutrophils in patients with CRS has been linked to poor corticosteroid response and disease prognosis. Meanwhile, tissue neutrophils may possess specific phenotypic features distinguishing them from resting blood counterparts and are endowed with particular functions, such as cytokines and chemokines production, thus may contribute to the pathogenesis of CRS. This review aims to summarize our current understanding of the pathophysiologic mechanisms of CRS, with a focus on the roles of neutrophils. We discuss recruitment, function, and regulation of neutrophils in CRS and outline the potential therapeutic strategies targeting neutrophils.
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Affiliation(s)
- Hai Wang
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Pan
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zheng Liu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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16
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Wynne M, Atkinson C, Schlosser RJ, Mulligan JK. Contribution of Epithelial Cell Dysfunction to the Pathogenesis of Chronic Rhinosinusitis with Nasal Polyps. Am J Rhinol Allergy 2019; 33:782-790. [PMID: 31382760 DOI: 10.1177/1945892419868588] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Background In the past, the airway epithelium was thought to be primarily an inert physical barrier. We now know that the upper airway epithelium plays a critical role in both innate and adaptive immunity, and that epithelial dysfunction is strongly associated with inflammatory airway disease. The pathogenesis of chronic rhinosinusitis is poorly understood, but growing evidence supports a key role for the airway epithelium in the pathophysiology of the disease. Objective The purpose of this study is to explore our current understanding of how dysfunction in human sinonasal epithelial cells (HSNECs) contributes to the pathogenesis of chronic rhinosinusitis with nasal polyps (CRSwNP) and to examine how current and developing therapies affect epithelial cell functions. Methods A literature review of papers published in English pertaining to epithelial cell dysfunction in patients with CRSwNP was performed using the PubMed database. The search utilized combinations of the following key words: sinusitis, polyps, epithelium, pathophysiology, barrier function, dendritic cells, eosinophils, T cells, complement, mucociliary clearance, vitamin D, cytokines, chemokines, taste receptors, steroids, saline, and therapy. Results HSNEC mucociliary clearance, barrier function, secretion of cytokines, influence on dendritic cells, influence on T-cells, regulation of eosinophils, vitamin D metabolism, complement production, and taste receptor function are altered in patients with CRSwNP and contribute to the pathogenesis of the disease. Current therapies utilized to manage CRSwNP counteract the effects of HSNEC dysfunction and relieve key symptoms of the disease. Conclusion HSNECs are key players in both innate and adaptive immunity, and altered epithelial functions are closely intertwined with the pathogenesis of CRSwNP. Our review supports further investigation of altered HSNEC function in patients with CRSwNP and supports development of novel epithelial-targeted therapies for its management.
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Affiliation(s)
- Michael Wynne
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Carl Atkinson
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, South Carolina.,Department of Surgery, Medical University of South Carolina, Lee Patterson Allen Transplant Immunobiology Laboratory, Charleston, South Carolina
| | - Rodney J Schlosser
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Jennifer K Mulligan
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, South Carolina.,Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina
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17
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Li Z, Zeng M, Deng Y, Zhao J, Zhou X, Trudeau JB, Goldschmidt E, Moore JA, Chu H, Zhang W, Yin S, Liu Z, Di YP, Lee SE, Wenzel SE. 15-Lipoxygenase 1 in nasal polyps promotes CCL26/eotaxin 3 expression through extracellular signal-regulated kinase activation. J Allergy Clin Immunol 2019; 144:1228-1241.e9. [PMID: 31301373 DOI: 10.1016/j.jaci.2019.06.037] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 05/29/2019] [Accepted: 06/19/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND 15-Lipoxygenase 1 (15LO1) is expressed in airway epithelial cells in patients with type 2-high asthma in association with eosinophilia. Chronic rhinosinusitis with nasal polyps (CRSwNP) is also associated with type 2 inflammation and eosinophilia. CCL26/eotaxin 3 has been reported to be regulated by 15LO1 in lower airway epithelial cells. However, its relation to 15LO1 in patients with CRSwNP or mechanisms for its activation are unclear. OBJECTIVE We sought to evaluate 15LO1 and CCL26 expression in nasal epithelial cells (NECs) from patients with CRSwNP and healthy control subjects (HCs) and determine whether 15LO1 regulates CCL26 in NECs through extracellular signal-regulated kinase (ERK) activation. METHODS 15LO1, CCL26, and phosphorylated ERK were evaluated in NECs from patients with CRSwNP and HCs. 15LO1/CCL26 and CCL26/cytokeratin 5 were colocalized by means of immunofluorescence. IL-13-stimulated NECs were cultured at an air-liquid interface with or without 15-lipoxygenase 1 gene (ALOX15) Dicer-substrate short interfering RNAs (DsiRNA) transfection, a specific 15LO1 enzymatic inhibitor, and 2 ERK inhibitors. Expression of 15LO1 and CCL26 mRNA and protein was analyzed by using quantitative RT-PCR, Western blotting, and ELISA. RESULTS 15LO1 expression was increased in nasal polyp (NP) epithelial cells compared with middle turbinate epithelial cells from patients with CRSwNP and HCs. 15LO1 expression correlated with CCL26 expression and colocalized with CCL26 expression in basal cells of the middle turbinate and NPs from patients with CRSwNP. In primary NECs in vitro, IL-13 induced 15LO1 and CCL26 expression. 15LO1 knockdown and inhibition decreased IL-13-induced ERK phosphorylation and CCL26 expression. ERK inhibition (alone) similarly decreased IL-13-induced CCL26. Phosphorylated ERK expression was increased in NECs from CRSwNP subjects and positively correlated with both 15LO1 and CCL26 expression. CONCLUSIONS 15LO1 expression is increased in NP epithelial cells and contributes to CCL26 expression through ERK activation. 15LO1 could be considered a novel therapeutic target for CRSwNP.
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Affiliation(s)
- Zhipeng Li
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai; University of Pittsburgh Asthma Institute@UPMC, Department of Environmental and Occupational Health, Graduate School of Public Health, Pittsburgh, Pa
| | - Ming Zeng
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; University of Pittsburgh Asthma Institute@UPMC, Department of Environmental and Occupational Health, Graduate School of Public Health, Pittsburgh, Pa
| | - Yanhan Deng
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; University of Pittsburgh Asthma Institute@UPMC, Department of Environmental and Occupational Health, Graduate School of Public Health, Pittsburgh, Pa
| | - Jinming Zhao
- University of Pittsburgh Asthma Institute@UPMC, Department of Environmental and Occupational Health, Graduate School of Public Health, Pittsburgh, Pa
| | - Xiuxia Zhou
- University of Pittsburgh Asthma Institute@UPMC, Department of Environmental and Occupational Health, Graduate School of Public Health, Pittsburgh, Pa
| | - John B Trudeau
- University of Pittsburgh Asthma Institute@UPMC, Department of Environmental and Occupational Health, Graduate School of Public Health, Pittsburgh, Pa
| | - Ezequiel Goldschmidt
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa
| | - John A Moore
- Department of Otolaryngology-Head and Neck Surgery, University of Pittsburgh Medical Center, Mercy Hospital, Pittsburgh, Pa
| | - Hongwei Chu
- Department of Medicine, National Jewish Health, Denver, Colo
| | - Weitian Zhang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai
| | - Shankai Yin
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai
| | - Zheng Liu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Y Peter Di
- University of Pittsburgh Asthma Institute@UPMC, Department of Environmental and Occupational Health, Graduate School of Public Health, Pittsburgh, Pa
| | - Stella E Lee
- Department of Otolaryngology-Head and Neck Surgery, University of Pittsburgh Medical Center, Mercy Hospital, Pittsburgh, Pa.
| | - Sally E Wenzel
- University of Pittsburgh Asthma Institute@UPMC, Department of Environmental and Occupational Health, Graduate School of Public Health, Pittsburgh, Pa.
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18
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Amyloid beta in nasal secretions may be a potential biomarker of Alzheimer's disease. Sci Rep 2019; 9:4966. [PMID: 30899050 PMCID: PMC6428828 DOI: 10.1038/s41598-019-41429-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 03/08/2019] [Indexed: 12/31/2022] Open
Abstract
We investigated the level of amyloid beta (Aβ) in nasal secretions of patients with Alzheimer’s disease dementia (ADD) using interdigitated microelectrode (IME) biosensors and determined the predictive value of Aβ in nasal secretions for ADD diagnosis. Nasal secretions were obtained from 35 patients with ADD, 18 with cognitive decline associated with other neurological disorders (OND), and 26 cognitively unimpaired (CU) participants. Capacitance changes in IMEs were measured by capturing total Aβ (ΔCtAβ). After 4-(2-hydroxyethyl)-1-piperazinepropanesulfonic acid (EPPS) was injected, additional capacitance changes due to the smaller molecular weight Aβ oligomers disassembled from the higher molecular weight oligomeric Aβ were determined (ΔCoAβ). By dividing two values, the capacitance ratio (ΔCoAβ/ΔCtAβ) was determined and then normalized to the capacitance change index (CCI). The CCI was higher in the ADD group than in the OND (p = 0.040) and CU groups (p = 0.007). The accuracy of the CCI was fair in separating into the ADD and CU groups (area under the receiver operating characteristic curve = 0.718, 95% confidence interval = 0.591–0.845). These results demonstrate that the level of Aβ in nasal secretions increases in ADD and the detection of Aβ in nasal secretions using IME biosensors may be possible in predicting ADD.
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19
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Cho DY, Skinner D, Mackey C, Lampkin HB, Elder JB, Lim DJ, Zhang S, McCormick J, Tearney GJ, Rowe SM, Woodworth BA. Herbal dry extract BNO 1011 improves clinical and mucociliary parameters in a rabbit model of chronic rhinosinusitis. Int Forum Allergy Rhinol 2019; 9:629-637. [PMID: 30657641 DOI: 10.1002/alr.22290] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 12/22/2018] [Accepted: 12/27/2018] [Indexed: 11/08/2022]
Abstract
BACKGROUND Enhancing chloride (Cl- ) secretion in sinus epithelia represents a novel therapeutic approach to chronic rhinosinusitis (CRS). Herbal dry extract BNO 1011 enhances mucociliary clearance (MCC) via upregulation of Cl- secretion in sinonasal cultures in vitro and murine epithelium in vivo. The objective of this study is to evaluate whether the BNO 1011 improves MCC and clinical parameters in a rabbit model of CRS. METHODS After the development of CRS in 30 New Zealand white rabbits, animals were randomly assigned to receive oral placebo (n = 10), BNO 1011 (low dose [LD], 25 mg/kg/daily) (n = 10), or BNO1011 (high dose [HD], 125 mg/kg/daily) (n = 10) for 4 weeks. Outcomes included sinus opacification (Kerschner's rabbit sinus CT grade), maxillary epithelial Cl- secretion (sinus potential difference [PD] assay), airway surface liquid (ASL) depth using micro-optical coherence tomography (μOCT), and submucosal gland density (SMD) on histopathology. Outcome parameters were analyzed by 2 blinded investigators. RESULTS BNO 1011 significantly cleared sinus opacification (HD = 1.21 ± 0.63, LD = 1.26 ± 0.37,) compared to placebo (4.02 ± 0.92) (p = 0.009). BNO 1011 resulted in markedly greater mean sinus PD polarization (HD = -12.23 ± 1.4 mV, LD = -12.0 ± 3.0 mV) when compared to rabbits treated with placebo (-4.1 ± 1.1 mV) (p = 0.03). ASL depth was significantly improved when treated with HD (4.08 ± 0.06 μm) and LD (4.05 ± 0.06 μm) compared to placebo (3.5 ± 0.05 μm) (post hoc analysis, p < 0.0001). Histologically, epithelial thickness (HD = 10.0 ± 0.7 μm; LD = 13.7 ± 0.9 μm; placebo = 21.1 ± 2.3 μm; p < 0.005), subepithelial thickness (HD = 63.1 ± 6.6 μm; LD = 103.2 ± 6.7 μm; placebo = 113.3 ± 6.0 μm; p < 0.001), and SMD (HD = 22.2 ± 2.9%; LD = 31.8 ± 1.1%; placebo = 43.8 ± 1.7%; p < 0.0001) were noticeably better with the HD. CONCLUSION Herbal dry extract BNO 1011 improves radiographic, histologic, and MCC parameters in a rabbit model of CRS.
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Affiliation(s)
- Do-Yeon Cho
- Department of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, AL.,Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL
| | - Daniel Skinner
- Department of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Calvin Mackey
- Department of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Harold B Lampkin
- Department of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Jeffrey Brent Elder
- Department of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Dong Jin Lim
- Department of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Shaoyan Zhang
- Department of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Justin McCormick
- Department of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, AL
| | - Guillermo J Tearney
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA
| | - Steven M Rowe
- Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL.,Department of Medicine, University of Alabama at Birmingham, Birmingham, AL.,Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL.,Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL
| | - Bradford A Woodworth
- Department of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, AL.,Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL
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20
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Rashid MI, Ali A, Andleeb S. Functional Annotation and Analysis of Dual Oxidase 1 (DUOX1): a Potential Anti-pyocyanin Immune Component. Interdiscip Sci 2018; 11:597-610. [PMID: 30483939 DOI: 10.1007/s12539-018-0308-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 10/24/2018] [Accepted: 10/24/2018] [Indexed: 11/27/2022]
Abstract
Dual Oxidase 1 (DUOX1) is a prominent immune system component primarily expressed in esophagus, lungs, skin, and urinary bladder including others. DUOX1 is involved in lactoperoxidase-mediated innate immunity at mucosal surfaces by generation of antimicrobial hypothiocyanite at the apical surface of epithelial lining. Upon detection of bacterial pathogens mainly Pseudomonas aeruginosa, DUOX1 is activated in bronchial epithelial cells. Both the host and pathogen enter a redox dual with DUOX1 and hypothiocyanite from host and Pyocyanin (PCN) as a redox active virulence factor from P. aeruginosa. The synergy of the both enzymes permanently oxidizes PCN and thus holds the potential to prevent PCN-induced virulence, which otherwise paves the way for establishment of persistent chronic infection. In this study, we structurally and functionally annotated the DUOX1, predicted its 3d structure, physio-chemical properties, post-translational modifications, and genetic polymorphism analysis with subsequent disease-associated single-nucleotide variations and their impact on DUOX1 functionality by employing in silico approaches. DUOX1 holds greater homology with gorilla and chimpanzee than other primates. The localization signal peptide was present at the beginning of the peptide with cleavage site at 22 aa position. Three distinct functional domains were observed based on homology: An_peroxidase, FRQ1, and oxido-reductase domains. Polymorphism analysis revealed > 60 SNPs associated with different cancers with probable damaging effects. No cancer-associated methylated island was observed for DUOX1. Three-dimensional structure was developed via homology modeling strategy. The proper annotation will help in characterization of DUOX1 and enhance our knowledge of its functionality and biological roles.
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Affiliation(s)
- Muhammad Ibrahim Rashid
- Department of Industrial Biotechnology, Atta ur Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Amjad Ali
- Department of Industrial Biotechnology, Atta ur Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Saadia Andleeb
- Department of Industrial Biotechnology, Atta ur Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, Pakistan.
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21
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Loffredo L, Zicari AM, Occasi F, Perri L, Carnevale R, Battaglia S, Angelico F, Del Ben M, Martino F, Nocella C, Farcomeni A, De Castro G, Duse M, Violi F. Passive Smoking Exacerbates Nicotinamide-Adenine Dinucleotide Phosphate Oxidase Isoform 2-Induced Oxidative Stress and Arterial Dysfunction in Children with Persistent Allergic Rhinitis. J Pediatr 2018; 202:252-257. [PMID: 30172425 DOI: 10.1016/j.jpeds.2018.06.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 06/14/2018] [Accepted: 06/18/2018] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To characterize nicotinamide-adenine dinucleotide phosphate oxidase isoform 2 (NOX2), oxidative stress, and endothelial function in children with and without allergic rhinitis and to ascertain the effect of passive smoke exposure on these factors, because there is an established association between allergic rhinitis and increased cardiovascular risk in adults. METHODS We recruited 130 children-65 with persistent allergic rhinitis and 65 healthy controls. A cross-sectional study was performed to compare endothelial function by flow-mediated dilation, blood levels of isoprostanes, serum activity of soluble NOX2-dp (sNOX2-dp), and nitric oxide bioavailability, in these 2 groups of children. Serum cotinine levels were assessed to measure exposure to passive smoking. RESULTS Compared with healthy controls, children with persistent allergic rhinitis had significantly higher sNOX2-dp and isoprostanes levels, lower flow-mediated dilation, and reduced nitric oxide bioavailability. Multivariable linear regression analysis showed that flow-mediated dilation, isoprostanes, and cotinine were independently associated with sNOX2-dp levels. Of note, sNOX2-dp serum levels were significantly higher in children with allergic rhinitis exposed to smoke, as compared with unexposed children with allergic rhinitis. CONCLUSION NOX2 is activated in children with persistent allergic rhinitis and passive smoke exposure exacerbates this effect. We further demonstrate an association between higher sNOX2-dp and oxidative stress and endothelial dysfunction.
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Affiliation(s)
- Lorenzo Loffredo
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy.
| | | | - Francesca Occasi
- Department of Pediatrics, Sapienza University of Rome, Rome, Italy
| | - Ludovica Perri
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy
| | - Roberto Carnevale
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy; Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Simona Battaglia
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy
| | - Francesco Angelico
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy
| | - Maria Del Ben
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy
| | | | - Cristina Nocella
- Department of AngioCardioNeurology, IRCCS NeuroMed, Pozzilli, Italy
| | - Alessio Farcomeni
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | | | - Marzia Duse
- Department of Pediatrics, Sapienza University of Rome, Rome, Italy
| | - Francesco Violi
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy
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22
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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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23
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Little AC, Sulovari A, Danyal K, Heppner DE, Seward DJ, van der Vliet A. Paradoxical roles of dual oxidases in cancer biology. Free Radic Biol Med 2017; 110:117-132. [PMID: 28578013 PMCID: PMC5535817 DOI: 10.1016/j.freeradbiomed.2017.05.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 05/26/2017] [Accepted: 05/30/2017] [Indexed: 02/06/2023]
Abstract
Dysregulated oxidative metabolism is a well-recognized aspect of cancer biology, and many therapeutic strategies are based on targeting cancers by altering cellular redox pathways. The NADPH oxidases (NOXes) present an important enzymatic source of biological oxidants, and the expression and activation of several NOX isoforms are frequently dysregulated in many cancers. Cell-based studies have demonstrated a role for several NOX isozymes in controlling cell proliferation and/or cell migration, further supporting a potential contributing role for NOX in promoting cancer. While various NOX isoforms are often upregulated in cancers, paradoxical recent findings indicate that dual oxidases (DUOXes), normally prominently expressed in epithelial lineages, are frequently suppressed in epithelial-derived cancers by epigenetic mechanisms, although the functional relevance of such DUOX silencing has remained unclear. This review will briefly summarize our current understanding regarding the importance of reactive oxygen species (ROS) and NOXes in cancer biology, and focus on recent observations indicating the unique and seemingly opposing roles of DUOX enzymes in cancer biology. We will discuss current knowledge regarding the functional properties of DUOX, and recent studies highlighting mechanistic consequences of DUOX1 loss in lung cancer, and its consequences for tumor invasiveness and current anticancer therapy. Finally, we will also discuss potentially unique roles for the DUOX maturation factors. Overall, a better understanding of mechanisms that regulate DUOX and the functional consequences of DUOX silencing in cancer may offer valuable new diagnostic insights and novel therapeutic opportunities.
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Affiliation(s)
- Andrew C Little
- Department of Pathology and Laboratory Medicine, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, VT 05405, United States; Cellular, Molecular, and Biomedical Sciences Graduate Program, University of Vermont, Burlington, VT 05405, United States
| | - Arvis Sulovari
- Cellular, Molecular, and Biomedical Sciences Graduate Program, University of Vermont, Burlington, VT 05405, United States; Department of Microbiology and Molecular Genetics, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, VT 05405, United States
| | - Karamatullah Danyal
- Department of Pathology and Laboratory Medicine, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, VT 05405, United States
| | - David E Heppner
- Department of Pathology and Laboratory Medicine, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, VT 05405, United States
| | - David J Seward
- Department of Pathology and Laboratory Medicine, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, VT 05405, United States
| | - Albert van der Vliet
- Department of Pathology and Laboratory Medicine, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, VT 05405, United States; Cellular, Molecular, and Biomedical Sciences Graduate Program, University of Vermont, Burlington, VT 05405, United States.
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24
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Habibovic A, Hristova M, Heppner DE, Danyal K, Ather JL, Janssen-Heininger YM, Irvin CG, Poynter ME, Lundblad LK, Dixon AE, Geiszt M, van der Vliet A. DUOX1 mediates persistent epithelial EGFR activation, mucous cell metaplasia, and airway remodeling during allergic asthma. JCI Insight 2016; 1:e88811. [PMID: 27812543 DOI: 10.1172/jci.insight.88811] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Chronic inflammation with mucous metaplasia and airway remodeling are hallmarks of allergic asthma, and these outcomes have been associated with enhanced expression and activation of EGFR signaling. Here, we demonstrate enhanced expression of EGFR ligands such as amphiregulin as well as constitutive EGFR activation in cultured nasal epithelial cells from asthmatic subjects compared with nonasthmatic controls and in lung tissues of mice during house dust mite-induced (HDM-induced) allergic inflammation. EGFR activation was associated with cysteine oxidation within EGFR and the nonreceptor tyrosine kinase Src, and both amphiregulin production and oxidative EGFR activation were diminished by pharmacologic or genetic inhibition of the epithelial NADPH oxidase dual oxidase 1 (DUOX1). DUOX1 deficiency also attenuated several EGFR-dependent features of HDM-induced allergic airway inflammation, including neutrophilic inflammation, type 2 cytokine production (IL-33, IL-13), mucous metaplasia, subepithelial fibrosis, and central airway resistance. Moreover, targeted inhibition of airway DUOX1 in mice with previously established HDM-induced allergic inflammation, by intratracheal administration of DUOX1-targeted siRNA or pharmacological NADPH oxidase inhibitors, reversed most of these outcomes. Our findings indicate an important function for DUOX1 in allergic inflammation related to persistent EGFR activation and suggest that DUOX1 targeting may represent an attractive strategy in asthma management.
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Affiliation(s)
| | | | | | | | - Jennifer L Ather
- Department of Medicine, Vermont Lung Center, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, Vermont, USA
| | | | - Charles G Irvin
- Department of Medicine, Vermont Lung Center, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Matthew E Poynter
- Department of Medicine, Vermont Lung Center, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Lennart K Lundblad
- Department of Medicine, Vermont Lung Center, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Anne E Dixon
- Department of Medicine, Vermont Lung Center, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Miklos Geiszt
- Department of Physiology and "Lendület" Peroxidase Enzyme Research Group, Semmelweis University, Budapest, Hungary
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25
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König K, Klemens C, Haack M, Nicoló MS, Becker S, Kramer MF, Gröger M. Cytokine patterns in nasal secretion of non-atopic patients distinguish between chronic rhinosinusitis with or without nasal polys. Allergy Asthma Clin Immunol 2016; 12:19. [PMID: 27127525 PMCID: PMC4849093 DOI: 10.1186/s13223-016-0123-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 03/23/2016] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Being one of the most common nasal diseases, chronic rhinosinusitis (CRS) is subdivided into CRS with nasal polyps (NP) and CRS without nasal polyps (CRSsNP). CRSsNP presents itself with a TH1 milieu and neutrophil infiltration, while NP is characterised by a mixed TH1/TH2 profile and an influx of predominantly eosinophils, plasma cells and mast cells. For the purpose of discovering disease-specific cytokine profiles, the present study compares levels of mediators and cytokines in nasal secretions between CRSsNP, NP, and healthy controls. METHODS The study included 45 participants suffering from NP, 48 suffering from CRSsNP and 48 healthy controls. Allergic rhinitis constituted an exclusion criterion. Nasal secretions, sampled using the cotton wool method, were analysed for IL-4, IL-5, IL-10, IL-12, IL-13, IL-17, IL-8, GM-CSF, G-CSF, IFN-γ, MCP-1, MIP-1α, MIP-1β, eotaxin, and RANTES, and for ECP and tryptase, using Bio-Plex Cytokine assay or ELISA, respectively. RESULTS Elevated levels of IL-5, IL-17, G-CSF, MCP-1, MIP-1α, MIP-1β, ECP, and tryptase, as well as decreased levels of IL-10, IL-12, IL-13, and IFN-γ were detected in NP. CRSsNP presented increased levels of RANTES and MIP-1β while IL-13 was decreased. No differences between the three groups were found for IL-4, IL-8, GM-CSF, and eotaxin. CONCLUSIONS The present work suggests a disequilibrium of TH1 and TH2, together with a down-regulation of regulatory T lymphocytes and up-regulated TH17 in NP. Moreover, elevated levels of diverse mediators represent the activation of various inflammatory cells in this disease entity. The inflammation in CRSsNP, however, is only weakly depicted in nasal secretions. Therefore, cytokines in nasal secretions may provide helpful information for differential diagnosis.
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Affiliation(s)
- Katrin König
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Großhadern of the Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Christine Klemens
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Großhadern of the Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Mareike Haack
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Großhadern of the Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Marion San Nicoló
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Großhadern of the Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Sven Becker
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Großhadern of the Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377 Munich, Germany ; Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55101 Mainz, Germany
| | - Matthias F Kramer
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Großhadern of the Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Moritz Gröger
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Großhadern of the Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377 Munich, Germany
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26
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Orlandi RR, Kingdom TT, Hwang PH, Smith TL, Alt JA, Baroody FM, Batra PS, Bernal-Sprekelsen M, Bhattacharyya N, Chandra RK, Chiu A, Citardi MJ, Cohen NA, DelGaudio J, Desrosiers M, Dhong HJ, Douglas R, Ferguson B, Fokkens WJ, Georgalas C, Goldberg A, Gosepath J, Hamilos DL, Han JK, Harvey R, Hellings P, Hopkins C, Jankowski R, Javer AR, Kern R, Kountakis S, Kowalski ML, Lane A, Lanza DC, Lebowitz R, Lee HM, Lin SY, Lund V, Luong A, Mann W, Marple BF, McMains KC, Metson R, Naclerio R, Nayak JV, Otori N, Palmer JN, Parikh SR, Passali D, Peters A, Piccirillo J, Poetker DM, Psaltis AJ, Ramadan HH, Ramakrishnan VR, Riechelmann H, Roh HJ, Rudmik L, Sacks R, Schlosser RJ, Senior BA, Sindwani R, Stankiewicz JA, Stewart M, Tan BK, Toskala E, Voegels R, Wang DY, Weitzel EK, Wise S, Woodworth BA, Wormald PJ, Wright ED, Zhou B, Kennedy DW. International Consensus Statement on Allergy and Rhinology: Rhinosinusitis. Int Forum Allergy Rhinol 2016; 6 Suppl 1:S22-209. [DOI: 10.1002/alr.21695] [Citation(s) in RCA: 333] [Impact Index Per Article: 41.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 11/13/2015] [Accepted: 11/16/2015] [Indexed: 02/06/2023]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Valerie Lund
- Royal National Throat Nose and Ear Hospital; London UK
| | - Amber Luong
- University of Texas Medical School at Houston
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27
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Hristova M, Habibovic A, Veith C, Janssen-Heininger YMW, Dixon AE, Geiszt M, van der Vliet A. Airway epithelial dual oxidase 1 mediates allergen-induced IL-33 secretion and activation of type 2 immune responses. J Allergy Clin Immunol 2015; 137:1545-1556.e11. [PMID: 26597162 DOI: 10.1016/j.jaci.2015.10.003] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 09/23/2015] [Accepted: 10/02/2015] [Indexed: 11/16/2022]
Abstract
BACKGROUND The IL-1 family member IL-33 plays a critical role in type 2 innate immune responses to allergens and is an important mediator of allergic asthma. The mechanisms by which allergens provoke epithelial IL-33 secretion are still poorly understood. OBJECTIVE Based on previous findings indicating involvement of the NADPH oxidase dual oxidase 1 (DUOX1) in epithelial wound responses, we explored the potential involvement of DUOX1 in allergen-induced IL-33 secretion and potential alterations in airways of asthmatic patients. METHODS Cultured human or murine airway epithelial cells or mice were subjected to acute challenge with Alternaria alternata or house dust mite, and secretion of IL-33 and activation of subsequent type 2 responses were determined. The role of DUOX1 was explored by using small interfering RNA approaches and DUOX1-deficient mice. Cultured nasal epithelial cells from healthy subjects or asthmatic patients were evaluated for DUOX1 expression and allergen-induced responses. RESULTS In vitro or in vivo allergen challenge resulted in rapid airway epithelial IL-33 secretion, which depended critically on DUOX1-mediated activation of epithelial epidermal growth factor receptor and the protease calpain-2 through a redox-dependent mechanism involving cysteine oxidation within epidermal growth factor receptor and the tyrosine kinase Src. Primary nasal epithelial cells from patients with allergic asthma were found to express increased DUOX1 and IL-33 levels and demonstrated enhanced IL-33 secretion in response to allergen challenge compared with values seen in nasal epithelial cells from nonasthmatic subjects. CONCLUSION Our findings implicate epithelial DUOX1 as a pivotal mediator of IL-33-dependent activation of innate airway type 2 immune responses to common airborne allergens and indicate that enhanced DUOX1 expression and IL-33 secretion might present important contributing features of allergic asthma.
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Affiliation(s)
- Milena Hristova
- Department of Pathology and Laboratory Medicine, Vermont Lung Center, University of Vermont, Burlington, Vt
| | - Aida Habibovic
- Department of Pathology and Laboratory Medicine, Vermont Lung Center, University of Vermont, Burlington, Vt
| | - Carmen Veith
- Department of Pathology and Laboratory Medicine, Vermont Lung Center, University of Vermont, Burlington, Vt
| | | | - Anne E Dixon
- Department of Medicine, Vermont Lung Center, University of Vermont, Burlington, Vt
| | - Miklos Geiszt
- Department of Physiology and Lendület Peroxidase Enzyme Research Group, Semmelweis University, Budapest, Hungary
| | - Albert van der Vliet
- Department of Pathology and Laboratory Medicine, Vermont Lung Center, University of Vermont, Burlington, Vt.
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28
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Hulse KE, Stevens WW, Tan BK, Schleimer RP. Pathogenesis of nasal polyposis. Clin Exp Allergy 2015; 45:328-46. [PMID: 25482020 DOI: 10.1111/cea.12472] [Citation(s) in RCA: 139] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Chronic rhinosinusitis with nasal polyps (CRSwNP) is a complex inflammatory condition that affects a large proportion of the population world-wide and is associated with high cost of management and significant morbidity. Yet, there is a lack of population-based epidemiologic studies using current definitions of CRSwNP, and the mechanisms that drive pathogenesis in this disease remain unclear. In this review, we summarize the current evidence for the plethora of factors that likely contribute to CRSwNP pathogenesis. Defects in the innate function of the airway epithelial barrier, including diminished expression of antimicrobial products and loss of barrier integrity, combined with colonization by fungi and bacteria likely play a critical role in the development of chronic inflammation in CRSwNP. This chronic inflammation is characterized by elevated expression of many key inflammatory cytokines and chemokines, including IL-5, thymic stromal lymphopoietin and CCL11, that help to initiate and perpetuate this chronic inflammatory response. Together, these factors likely combine to drive the influx of a variety of immune cells, including eosinophils, mast cells, group 2 innate lymphoid cells and lymphocytes, which participate in the chronic inflammatory response within the nasal polyps. Importantly, however, future studies are needed to demonstrate the necessity and sufficiency of these potential drivers of disease in CRSwNP. In addition to the development of new tools and models to aid mechanistic studies, the field of CRSwNP research also needs the type of robust epidemiologic data that has served the asthma community so well. Given the high prevalence, costs and morbidity, there is a great need for continued research into CRS that could facilitate the development of novel therapeutic strategies to improve treatment for patients who suffer from this disease.
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Affiliation(s)
- K E Hulse
- Division of Allergy-Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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29
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Abstract
Determining the role of NADPH oxidases in the context of virus infection is an emerging area of research and our knowledge is still sparse. The expression of various isoforms of NOX/DUOX (NADPH oxidase/dual oxidase) in the epithelial cells (ECs) lining the respiratory tract renders them primary sites from which to orchestrate the host defence against respiratory viruses. Accumulating evidence reveals distinct facets of the involvement of NOX/DUOX in host antiviral and pro-inflammatory responses and in the control of the epithelial barrier integrity, with individual isoforms mediating co-operative, but surprisingly also opposing, functions. Although in vivo studies in mice are in line with some of these observations, a complete understanding of the specific functions of epithelial NOX/DUOX awaits lung epithelial-specific conditional knockout mice. The goal of the present review is to summarize our current knowledge of the role of individual NOX/DUOX isoforms expressed in the lung epithelium in the context of respiratory virus infections so as to highlight potential opportunities for therapeutic intervention.
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30
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Cho DY, Le W, Bravo DT, Hwang PH, Illek B, Fischer H, Nayak JV. Air pollutants cause release of hydrogen peroxide and interleukin-8 in a human primary nasal tissue culture model. Int Forum Allergy Rhinol 2014; 4:966-71. [PMID: 25400124 DOI: 10.1002/alr.21413] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 07/22/2014] [Accepted: 08/12/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND A component of primary innate defense of the nasal mucosa against inhaled pathogens includes continuous, low-level release of hydrogen peroxide (H2 O2 ) into luminal secretions. Epidemiologically, an association exists between poor air quality and increased prevalence of sinonasal disease. To understand the effects of particulate matter (PM) in nasal mucosa, we studied the release of H2 O2 and interleukin 8 (IL-8) after PM exposure. METHODS Human nasal specimens were collected from surgery and cultured in serum-free growth medium. Cell integrity and recovery during culture was monitored by lactate dehydrogenase (LDH) release into the medium. Cultures were exposed to PM for 24 hours in the presence/absence of diphenyleneiodonium sulfate (DPI; a nicotinamide adenine dinucleotide phosphate [NADPH] oxidase inhibitor). Luminex cytokine and Amplex-Red H2 O2 assays were performed. RESULTS LDH levels dropped rapidly within 2 days, indicative of stabilization and cell recovery after harvest. All cultures released H2 O2 into the medium. Exposure to PM (20 μg/cm(2) ) increased H2 O2 levels significantly (94.6 ± 7.7 nM) compared to untreated controls (55.8 ± 4.0 nM; p = 0.001). PM-induced H2 O2 production was partially inhibited by DPI (80.1 ± 3.8nM), indicating that cellular NADPH oxidase may be a primary source of H2 O2 production. Exposure to PM increased IL-8 levels in a dose-dependent fashion (control = 2301 ± 412 MFI; 20 μg/cm(2) = 5002 ± 1327 MFI; 40 μg/cm(2) = 8219 ± 1090 MFI; p = 0.022). CONCLUSION PM increases the quantity of H2 O2 released by nasal epithelial cells, indicating that PM can contribute to oxidative stress in part by activating a normal cellular defense mechanism. Exposure to PM resulted in elevated IL-8 levels and mucin production in explants. Efforts to reduce airborne PM may lead to reduced H2 O2 and mucin production in sinonasal epithelium.
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Affiliation(s)
- Do-Yeon Cho
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, AL; Children's Hospital Oakland Research Institute, Oakland, CA
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De Deken X, Corvilain B, Dumont JE, Miot F. Roles of DUOX-mediated hydrogen peroxide in metabolism, host defense, and signaling. Antioxid Redox Signal 2014; 20:2776-93. [PMID: 24161126 DOI: 10.1089/ars.2013.5602] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
SIGNIFICANCE Among the NADPH oxidases, the dual oxidases, DUOX1 and DUOX2, constitute a distinct subfamily initially called thyroid oxidases, based on their high level of expression in thyroid tissue. Genetic alterations causing inherited hypothyroidism clearly demonstrate their physiological implication in thyroid hormonogenesis. However, a growing list of biological functions triggered by DUOX-dependent reactive oxygen species (ROS) in highly differentiated mucosae have recently emerged. RECENT ADVANCES A role of DUOX enzymes as ROS providers for lactoperoxidase-mediated killing of invading pathogens has been well established and a role in bacteria chemorepulsion has been proposed. Control of DUOX expression and activity by inflammatory molecules and immune receptor activation consolidates their contributions to innate immune defense of mucosal surfaces. Recent studies conducted in ancestral organisms have identified effectors of DUOX redox signaling involved in wound healing including epithelium regeneration and leukocyte recruitment. Moreover, local generation of hydrogen peroxide (H2O2) by DUOX has also been suggested to constitute a positive feedback loop to promote receptor signaling activation. CRITICAL ISSUES A correct balance between H2O2 generation and detoxification mechanisms must be properly maintained to avoid oxidative damages. Overexpression of DUOX genes has been associated with an increasing number of chronic inflammatory diseases. Furthermore, H2O2-mediated DNA damage supports a mutagenic function promoting tumor development. FUTURE DIRECTIONS Despite the high sequence similarity shared between DUOX1 and DUOX2, the two isoforms present distinct regulations, tissue expression and catalytic functions. The phenotypic characterization of novel DUOX/DUOXA invalidated animal models will be very useful for defining their medical importance in pathological conditions.
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Affiliation(s)
- Xavier De Deken
- Faculté de Médecine, Institut de Recherche Interdisciplinaire en Biologie Humaine et Moléculaire (IRIBHM), Université Libre de Bruxelles (ULB) , Brussels, Belgium
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Chang S, Linderholm A, Franzi L, Kenyon N, Grasberger H, Harper R. Dual oxidase regulates neutrophil recruitment in allergic airways. Free Radic Biol Med 2013; 65:38-46. [PMID: 23770197 PMCID: PMC3859817 DOI: 10.1016/j.freeradbiomed.2013.06.012] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Revised: 05/27/2013] [Accepted: 06/05/2013] [Indexed: 01/16/2023]
Abstract
Enhanced reactive oxygen species production in allergic airways is well described and correlates with increased airway contractions, inflammatory cell infiltration, goblet cell metaplasia, and mucus hypersecretion. There is also an abundance of interleukin-4/interleukin-13 (IL-4/IL-13)- or interleukin-5-secreting cells that are thought to be central to the pathogenesis of allergic asthma. We postulated that the dual oxidases (DUOX1 and DUOX2), members of the nicotinamide adenine dinucleotide phosphate oxidase family that release hydrogen peroxide (H2O2) in the respiratory tract, are critical proteins in the pathogenesis of allergic airways. DUOX activity is regulated by cytokines, including IL-4 and IL-13, and DUOX-mediated H2O2 influences several important features of allergic asthma: mucin production, IL-8 secretion, and wound healing. The objective of this study was to establish the contribution of DUOXs to the development of allergic asthma in a murine model. To accomplish this goal, we utilized a DUOXA-deficient mouse model (Duoxa(-/-)) that lacked maturation factors for both DUOX1 and DUOX2. Our results are the first to demonstrate evidence of DUOX protein and DUOX functional activity in murine airway epithelium. We also demonstrate that DUOXA maturation factors are required for airway-specific H2O2 production and localization of DUOX to cilia of fully differentiated airway epithelial cells. We compared wild-type and Duoxa(-/-) mice in an ovalbumin exposure model to determine the role of DUOX in allergic asthma. In comparison to DUOX-intact mice, Duoxa(-/-) mice had reduced mucous cell metaplasia and lower levels of TH2 cytokine levels in bronchoalveolar fluid. In addition, increased airway resistance in response to methacholine was observed in Duoxa(+/+) mice, as expected, but was absent in Duoxa(-/-) mice. Surprisingly, Duoxa(-/-) mice had decreased influx of neutrophils in bronchoalveolar fluid and lung tissue sections associated with a lower level of the chemotactic cytokine IL-6. These findings suggest that DUOX-derived H2O2 has an important role in signaling neutrophils into allergic airways.
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Affiliation(s)
- Sandra Chang
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, School of Medicine, University of California at Davis, Davis, CA 95616, USA
| | - Angela Linderholm
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, School of Medicine, University of California at Davis, Davis, CA 95616, USA
| | - Lisa Franzi
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, School of Medicine, University of California at Davis, Davis, CA 95616, USA
| | - Nicholas Kenyon
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, School of Medicine, University of California at Davis, Davis, CA 95616, USA
| | - Helmut Grasberger
- Department of Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Richart Harper
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, School of Medicine, University of California at Davis, Davis, CA 95616, USA.
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