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Kombe Kombe AJ, Fotoohabadi L, Nanduri R, Gerasimova Y, Daskou M, Gain C, Sharma E, Wong M, Kelesidis T. The Role of the Nrf2 Pathway in Airway Tissue Damage Due to Viral Respiratory Infections. Int J Mol Sci 2024; 25:7042. [PMID: 39000157 PMCID: PMC11241721 DOI: 10.3390/ijms25137042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 06/14/2024] [Accepted: 06/20/2024] [Indexed: 07/16/2024] Open
Abstract
Respiratory viruses constitute a significant cause of illness and death worldwide. Respiratory virus-associated injuries include oxidative stress, ferroptosis, inflammation, pyroptosis, apoptosis, fibrosis, autoimmunity, and vascular injury. Several studies have demonstrated the involvement of the nuclear factor erythroid 2-related factor 2 (Nrf2) in the pathophysiology of viral infection and associated complications. It has thus emerged as a pivotal player in cellular defense mechanisms against such damage. Here, we discuss the impact of Nrf2 activation on airway injuries induced by respiratory viruses, including viruses, coronaviruses, rhinoviruses, and respiratory syncytial viruses. The inhibition or deregulation of Nrf2 pathway activation induces airway tissue damage in the presence of viral respiratory infections. In contrast, Nrf2 pathway activation demonstrates protection against tissue and organ injuries. Clinical trials involving Nrf2 agonists are needed to define the effect of Nrf2 therapeutics on airway tissues and organs damaged by viral respiratory infections.
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Affiliation(s)
- Arnaud John Kombe Kombe
- Division of Infectious Diseases and Geographic Medicine, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (A.J.K.K.)
| | - Leila Fotoohabadi
- Division of Infectious Diseases and Geographic Medicine, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (A.J.K.K.)
| | - Ravikanth Nanduri
- Division of Infectious Diseases and Geographic Medicine, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (A.J.K.K.)
| | - Yulia Gerasimova
- Division of Infectious Diseases and Geographic Medicine, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (A.J.K.K.)
| | - Maria Daskou
- Division of Infectious Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Chandrima Gain
- Division of Infectious Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Eashan Sharma
- Division of Infectious Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Michael Wong
- Division of Infectious Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Theodoros Kelesidis
- Division of Infectious Diseases and Geographic Medicine, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (A.J.K.K.)
- Division of Infectious Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
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Malik R, Paudel KR, Manandhar B, De Rubis G, Shen J, Mujwar S, Singh TG, Singh SK, Gupta G, Adams J, MacLoughlin R, Oliver BGG, Hansbro PM, Chellappan DK, Dua K. Agarwood oil nanoemulsion counteracts LPS-induced inflammation and oxidative stress in RAW264.7 mouse macrophages. Pathol Res Pract 2023; 251:154895. [PMID: 37879146 DOI: 10.1016/j.prp.2023.154895] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 10/27/2023]
Abstract
PURPOSE Oxidative stress and inflammation are key pathophysiological features of chronic respiratory diseases, including asthma and chronic obstructive pulmonary disease (COPD). Agarwood oil obtained from Aquilaria trees has promising antioxidant and anti-inflammatory activities. However, its clinical application is hampered by poor solubility. A viable approach to overcome this involves formulation of oily constituents into emulsions. Here, we have investigated the antioxidant and anti-inflammatory potential of an agarwood oil-based nanoemulsion (DE'RAAQSIN) against lipopolysaccharide (LPS)-induced RAW264.7 mouse macrophages in vitro. METHODS The antioxidant and anti-inflammatory activity of DE'RAAQSIN was assessed by measuring the levels of ROS and nitric oxide (NO) produced, using the DCF-DA assay and the Griess reagent assay, respectively. The molecular pathways activated by DE'RAAQSIN were investigated via qPCR. RESULTS LPS stimulation of RAW264.7 cells increased the production of nitric oxide (NO) and ROS and resulted in the overexpression of the inducible nitric oxide synthase (iNOS) gene. Furthermore, LPS induced the upregulation of the expression of key proinflammatory genes (IL-6, TNF-α, IL-1β, and CXCL1) and of the antioxidant gene heme oxygenase-1 (HO-1). DE'RAAQSIN demonstrated potent antioxidant and anti-inflammatory activity by significantly reducing the levels of ROS and of secreted NO, simultaneously counteracting the LPS-induced overexpression of iNOS, IL-6, TNF-α, IL-1β, and HO-1. These findings were corroborated by in silico activity prediction and physicochemical analysis of the main agarwood oil components. CONCLUSIONS We propose DE'RAAQSIN as a promising alternative managing inflammatory disorders, opening the platform for further studies aimed at understanding the effectiveness of DE'RAAQSIN.
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Affiliation(s)
- Raniya Malik
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Keshav Raj Paudel
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, School of Life Sciences, Sydney 2007, Australia
| | - Bikash Manandhar
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW 2007, Australia; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Gabriele De Rubis
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW 2007, Australia; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Jessie Shen
- De'Aurora Pty Ltd., Dean, VIC 3363, Australia
| | - Somdutt Mujwar
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India
| | - Thakur Gurjeet Singh
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India
| | - Sachin Kumar Singh
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW 2007, Australia; School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Gaurav Gupta
- Department of Pharmacology, Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College, Saveetha University, Chennai 602105, Tamil Nadu, India; School of Pharmacy, Suresh Gyan Vihar University, Jaipur 302017, Rajasthan, India; Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun 248007, Uttarakhand, India
| | - Jon Adams
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Ronan MacLoughlin
- IDA Business Park, H91 HE94 Galway, Connacht, Ireland; School of Pharmacy & Biomolecular Sciences, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Leinster, Ireland; School of Pharmacy & Pharmaceutical Sciences, Trinity College, D02 PN40 Dublin, Leinster, Ireland
| | | | - Philip Michael Hansbro
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, School of Life Sciences, Sydney 2007, Australia
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia.
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW 2007, Australia; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia.
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3
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Lee YJ, Hwang IC, Ahn HY. The association between oxidative balance score and lung function: A nationwide cross-sectional survey. Heliyon 2023; 9:e14650. [PMID: 36994413 PMCID: PMC10040707 DOI: 10.1016/j.heliyon.2023.e14650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 03/09/2023] [Accepted: 03/14/2023] [Indexed: 03/19/2023] Open
Abstract
Purpose Given the impact of oxidative imbalance on the development of airway pathologies, this study was undertaken to investigate the association between oxidative balance (OB) scores and lung function in the adult Korean population. Methods Data of 17,368 adults with available OB scores and pulmonary function test results were extracted from the 2013-2019 Korean National Health and Nutrition Examination Surveys. Multivariable logistic regression models were used to calculate the odds ratios (ORs) and 95% confidence intervals (CIs) for reduced forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC) per 1-point decrease in OB score. Dose dependent association of reduced lung function with OB scores was also investigated. Results Males, low-income subjects, individuals with comorbidities, and those with reduced pulmonary function had lower OB scores (representing oxidative balance). Overall, the association between oxidative imbalance and reduced lung function was remarkable in FVC than FEV1 (OR [95% CI], 1.06 [1.04-1.07] vs. 1.03 [1.02-1.04]; both p < 0.001). Linear relationships between the level of reduced lung function and OB scores were significantly noted (p for trend<0.001 in both FEV1 and FVC). Conclusion Our findings suggest that oxidative imbalance is associated with reduced pulmonary function.
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Affiliation(s)
- Yoo Jeong Lee
- Department of Family Medicine, Korea University Guro Hospital, Seoul, Republic of Korea
| | - In Cheol Hwang
- Department of Family Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea
- Corresponding author. 1198 Guwol-dong, Namdong-gu, Incheon 405-760, Republic of Korea.
| | - Hong Yup Ahn
- Department of Statistics, Dongguk University, Seoul, Republic of Korea
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Yamaya M, Kikuchi A, Sugawara M, Nishimura H. Anti-inflammatory effects of medications used for viral infection-induced respiratory diseases. Respir Investig 2023; 61:270-283. [PMID: 36543714 PMCID: PMC9761392 DOI: 10.1016/j.resinv.2022.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 10/20/2022] [Accepted: 11/08/2022] [Indexed: 12/23/2022]
Abstract
Respiratory viruses like rhinovirus, influenza virus, respiratory syncytial virus, and coronavirus cause several respiratory diseases, such as bronchitis, pneumonia, pulmonary fibrosis, and coronavirus disease 2019, and exacerbate bronchial asthma, chronic obstructive pulmonary disease, bronchiectasis, and diffuse panbronchiolitis. The production of inflammatory mediators and mucin and the accumulation of inflammatory cells have been reported in patients with viral infection-induced respiratory diseases. Interleukin (IL)-1β, IL-6, IL-8, tumor necrosis factor-α, granulocyte-macrophage colony-stimulating factor, and regulated on activation normal T-cell expressed and secreted are produced in the cells, including human airway and alveolar epithelial cells, partly through the activation of toll-like receptors, nuclear factor kappa B and p44/42 mitogen-activated protein kinase. These mediators are associated with the development of viral infection-induced respiratory diseases through the induction of inflammation and injury in the airway and lung, airway remodeling and hyperresponsiveness, and mucus secretion. Medications used to treat respiratory diseases, including corticosteroids, long-acting β2-agonists, long-acting muscarinic antagonists, mucolytic agents, antiviral drugs for severe acute respiratory syndrome coronavirus 2 and influenza virus, macrolides, and Kampo medicines, reduce the production of viral infection-induced mediators, including cytokines and mucin, as determined in clinical, in vivo, or in vitro studies. These results suggest that the anti-inflammatory effects of these medications on viral infection-induced respiratory diseases may be associated with clinical benefits, such as improvements in symptoms, quality of life, and mortality rate, and can prevent hospitalization and the exacerbation of chronic obstructive pulmonary disease, bronchial asthma, bronchiectasis, and diffuse panbronchiolitis.
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Affiliation(s)
- Mutsuo Yamaya
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan; Virus Research Center, Clinical Research Division, Sendai Medical Center, Sendai 983-8520, Japan; Department of Advanced Preventive Medicine for Infectious Disease, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan.
| | - Akiko Kikuchi
- Department of Kampo and Integrative Medicine, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan; Department of Education and Support for Regional Medicine, Tohoku University Hospital, Sendai 980-8574, Japan
| | - Mitsuru Sugawara
- Department of Otolaryngology, Tohoku Kosai Hospital, Sendai 980-0803, Japan
| | - Hidekazu Nishimura
- Virus Research Center, Clinical Research Division, Sendai Medical Center, Sendai 983-8520, Japan
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Goretzki A, Zimmermann J, Rainer H, Lin YJ, Schülke S. Immune Metabolism in TH2 Responses: New Opportunities to Improve Allergy Treatment - Disease-Specific Findings (Part 1). Curr Allergy Asthma Rep 2023; 23:29-40. [PMID: 36441389 PMCID: PMC9832111 DOI: 10.1007/s11882-022-01057-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/14/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE OF REVIEW Recent high-level publications have shown an intricate connection between immune effector function and the metabolic state of the respective cells. In the last years, studies have begun analyzing the metabolic changes associated with allergies. As the first part of a two-article series, this review will briefly summarize the basics of immune metabolism and then focus on the recently published studies on metabolic changes observed in allergic patients. RECENT FINDINGS In the last 3 years, immune-metabolic research in allergology had a clear focus on asthma with some studies also reporting findings in food allergy and atopic dermatitis. Current results suggest asthma to be associated with a shift in cellular metabolism towards increased aerobic glycolysis (Warburg metabolism), while also displaying substantial changes in fatty acid- and amino acid metabolism (depending on investigated patient collective, asthma phenotype, and disease severity). Understanding immune-metabolic changes in allergies will allow us to (I) better understand allergic disease pathology and (II) modulate immune-metabolic pathways to improve allergy treatment.
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Affiliation(s)
- A. Goretzki
- Vice President’s Research Group 1: Molecular Allergology, Paul-Ehrlich-Institut, Paul-Ehrlich-Str. 51-59, 63225 Langen, Germany
| | - J. Zimmermann
- Vice President’s Research Group 1: Molecular Allergology, Paul-Ehrlich-Institut, Paul-Ehrlich-Str. 51-59, 63225 Langen, Germany
| | - H. Rainer
- Vice President’s Research Group 1: Molecular Allergology, Paul-Ehrlich-Institut, Paul-Ehrlich-Str. 51-59, 63225 Langen, Germany
| | - Y.-J. Lin
- Vice President’s Research Group 1: Molecular Allergology, Paul-Ehrlich-Institut, Paul-Ehrlich-Str. 51-59, 63225 Langen, Germany
| | - Stefan Schülke
- Vice President's Research Group 1: Molecular Allergology, Paul-Ehrlich-Institut, Paul-Ehrlich-Str. 51-59, 63225, Langen, Germany.
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6
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Zorlu ME, Uygur KK, Yılmaz NS, Demirel ÖÖ, Aydil U, Kızıl Y, Uslu S. Evaluation of Advanced Oxidation Protein Products (AOPP) and Superoxide Dismutase (SOD) Tissue Levels in Patients with Nasal Polyps. Indian J Otolaryngol Head Neck Surg 2022; 74:4824-4830. [PMID: 36742727 PMCID: PMC9895680 DOI: 10.1007/s12070-022-03124-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 07/10/2022] [Indexed: 02/07/2023] Open
Abstract
The aim of this study is to eveluate levels of advanced oxidation protein products (AOPP) which are thought to increase in the polyp tissue and superoxide dismutase (SOD), an antioxidant enzyme, with using specthrophotometry in polyp tissue and healthy mucosa. 30 nasal polyp patients without inflammatory disease except for nasal polyposis were included in the study. The control group consisted of 18 patients who did not have allergy, asthma, inflammatory and granulomatous disease and planned surgery due to septum deviation and concha hypertrophy. AOPP and SOD tissue levels were measured by spectrophotometry in polyp tissue specimens taken from patients with nasal polyps and concha samples taken from patients in the control group. The mean AOPP tissue level of patients in the nasal polyposis group was statistically significantly higher than the control group. (p < 0.05). The mean SOD activity level was significantly lower in the nasal polyposis group than the control group. (p < 0.05) As a result of this study, high AOPP levels in polyp tissue and low SOD levels in polyp tissue compared to healthy nasal mucosa, oxidative stress plays an important role in nasal polyp development.
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Affiliation(s)
- Mehmet Ekrem Zorlu
- Department of Otolaryngology and Head and Neck Surgery, Izmir Bozyaka Training and Research Hospital, University of Health Sciences, Saim Cikrikci Street, Karabaglar, Izmir Izmir, Turkey
- Department of Otorhinolaryngology and Head and Neck Surgery, Gazi University School of Medicine, 06500 Beşevler, Ankara, Turkey
| | - K. Kemal Uygur
- Department of Otorhinolaryngology and Head and Neck Surgery, Gazi University School of Medicine, 06500 Beşevler, Ankara, Turkey
| | - Niyazi Samet Yılmaz
- Department of Biochemistry, Polatlı Duatepe State Hospital, Ankara, Turkey
- Department of Biochemistry, Gazi University School of Medicine, Beşevler, Ankara Turkey
| | - Özlem Özbaş Demirel
- Department of Biochemistry, Ankara Training and Research Hospital, Ankara, Turkey
| | - Utku Aydil
- Department of Otorhinolaryngology and Head and Neck Surgery, Gazi University School of Medicine, 06500 Beşevler, Ankara, Turkey
| | - Yusuf Kızıl
- Department of Otorhinolaryngology and Head and Neck Surgery, Gazi University School of Medicine, 06500 Beşevler, Ankara, Turkey
| | - Sabri Uslu
- Department of Otorhinolaryngology and Head and Neck Surgery, Gazi University School of Medicine, 06500 Beşevler, Ankara, Turkey
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Wang X, Li X, Xiong D, Ren H, Chen H, Ju Z. Exposure of adult sea urchin Strongylocentrotus intermedius to stranded heavy fuel oil causes developmental toxicity on larval offspring. PeerJ 2022; 10:e13298. [PMID: 35462773 PMCID: PMC9029359 DOI: 10.7717/peerj.13298] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/28/2022] [Indexed: 01/13/2023] Open
Abstract
Heavy fuel oil (HFO) spills pose serious threat to coastlines and sensitive resources. Stranded HFO that occurs along the coastline could cause long-term and massive damage to the marine environment and indirectly affect the survival of parental marine invertebrates. However, our understanding of the complex associations within invertebrates is primarily limited, particularly in terms of the toxicity effects on the offspring when parents are exposed to stranded HFO. Here, we investigated the persistent effects on the early development stage of the offspring following stranded HFO exposure on the sea urchin Strongylocentrotus intermedius. After 21 d exposure, sea urchins exhibited a significant decrease in the reproductive capacity; while the reactive oxygen species level, 3-nitrotyrosine protein level, protein carbonyl level, and heat shock proteins 70 expression in the gonadal tissues and gametes significantly increased as compared to the controls, indicating that HFO exposure could cause development toxicity on offspring in most traits of larval size. These results suggested that the stranded HFO exposure could increase oxidative stress of gonadal tissues, impair reproductive functions in parental sea urchins, and subsequently impact on development of their offspring. This study provides valuable information regarding the persistent toxicity effects on the offspring following stranded HFO exposure on sea urchins.
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Moussaoui H, Ladjel-Mendil A, Laraba-Djebari F. Neuromodulation of neurological disorders in a demyelination model: effect of a potassium channel inhibitor from Androctonus scorpion venom. TOXIN REV 2022. [DOI: 10.1080/15569543.2021.2022698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Hadjila Moussaoui
- Faculty of Biological Sciences, USTHB, Laboratory of Cellular and Molecular Biology, Algiers, Algeria
| | - Amina Ladjel-Mendil
- Faculty of Biological Sciences, USTHB, Laboratory of Cellular and Molecular Biology, Algiers, Algeria
| | - Fatima Laraba-Djebari
- Faculty of Biological Sciences, USTHB, Laboratory of Cellular and Molecular Biology, Algiers, Algeria
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Sim S, Choi Y, Park HS. Potential Metabolic Biomarkers in Adult Asthmatics. Metabolites 2021; 11:metabo11070430. [PMID: 34209139 PMCID: PMC8306564 DOI: 10.3390/metabo11070430] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/25/2021] [Accepted: 06/25/2021] [Indexed: 12/05/2022] Open
Abstract
Asthma is the most common chronic airway inflammation, with multiple phenotypes caused by complicated interactions of genetic, epigenetic, and environmental factors. To date, various determinants have been suggested for asthma pathogenesis by a new technology termed omics, including genomics, transcriptomics, proteomics, and metabolomics. In particular, the systematic analysis of all metabolites in a biological system, such as carbohydrates, amino acids, and lipids, has helped identify a novel pathway related to complex diseases. These metabolites are involved in the regulation of hypermethylation, response to hypoxia, and immune reactions in the pathogenesis of asthma. Among them, lipid metabolism has been suggested to be related to lung dysfunction in mild-to-moderate asthma. Sphingolipid metabolites are an important mediator contributing to airway inflammation in obese asthma and aspirin-exacerbated respiratory disease. Although how these molecular variants impact the disease has not been completely determined, identification of new causative factors may possibly lead to more-personalized and precise pathway-specific approaches for better diagnosis and treatment of asthma. In this review, perspectives of metabolites related to asthma and clinical implications have been highlighted according to various phenotypes.
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Affiliation(s)
| | | | - Hae-Sim Park
- Correspondence: ; Tel.: +82-31-219-5196; Fax: +82-31-219-5154
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10
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Zhu Y, Wang C, Luo J, Hua S, Li D, Peng L, Liu H, Song L. The protective role of Zingerone in a murine asthma model via activation of the AMPK/Nrf2/HO-1 pathway. Food Funct 2021; 12:3120-3131. [PMID: 33725040 DOI: 10.1039/d0fo01583k] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Asthma is one of the most common illnesses associated with chronic airway inflammation; however, there are currently no effective therapies apart from glucocorticoids. Zingerone (ZIN), an active compound isolated from ginger, has been reported to have a broad spectrum of pharmacological properties. In this study, Zingerone was administrated to H2O2-stimulated mouse airway epithelial cell line MLE12 cells and asthmatic mice. The concentration of cytokines was evaluated using enzyme-linked immunosorbent assay (ELISA). Hematoxylin-eosin (HE), Periodic Acid-Schiff (PAS) and Masson staining were used for histological analyses. Protein levels in cells or lung tissues were determined using western blot, immunohistochemistry staining. The results showed that treatment with Zingerone dramatically inhibited oxidative stress and the inflammatory response in MLE12 cells stimulated with H2O2 and asthmatic mice. Furthermore, Zingerone treatment could decrease the expression of phosphorylated (p)-IκBα and p65 (nuclear) and increase the expression of phosphorylation of AMP-activated protein kinase (p-AMPK), nuclear factor erythroid-2-related factor 2 (Nrf2), and hemeoxygenase-1 (HO-1) to alleviate oxidative damage and inflammation both in vivo and in vitro. In addition, Zingerone treatment reduced the exudation and infiltration of inflammatory cells and suppressed goblet cell hyperplasia in a murine asthma model. Treatment with Zingerone also decreased the level of interleukin (IL)-4, IL-5, IL-13, and increased the level of interferon gamma (IFN-γ) in the BALF and attenuated airway hyperresponsiveness (AHR). However, inhibition of AMPK or Nrf2 suppressed the cellular protective, antioxidative, and anti-inflammatory properties of Zingerone. Taken together, these results demonstrate that Zingerone possesses the potential to relieve asthma via upregulating the AMPK/Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- Yingjie Zhu
- Department of Respiratory Medicine, Key Laboratory of Organ Regeneration & Transplantation of the Ministry of Education, The First Hospital of Jilin University, Changchun 130021, Jilin, P.R. China.
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11
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Pecoraro M, Franceschelli S, Pascale M. Lumacaftor and Matrine: Possible Therapeutic Combination to Counteract the Inflammatory Process in Cystic Fibrosis. Biomolecules 2021; 11:422. [PMID: 33805605 PMCID: PMC7999856 DOI: 10.3390/biom11030422] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 12/03/2022] Open
Abstract
Cystic fibrosis is a monogenic, autosomal, recessive disease characterized by an alteration of chloride transport caused by mutations in the CFTR (Cystic Fibrosis Transmembrane Conductance Regulator) gene. The loss of Phe residue in position 508 (ΔF508-CFTR) causes an incorrect folding of the protein causing its degradation and electrolyte imbalance. CF patients are extremely predisposed to the development of a chronic inflammatory process of the bronchopulmonary system. When the cells of a tissue are damaged, the immune cells are activated and trigger the production of free radicals, provoking an inflammatory process. In addition to routine therapies, today drugs called correctors are available for mutations such as ΔF508-CFTR as well as for others less frequent ones. These active molecules are supposed to facilitate the maturation of the mutant CFTR protein, allowing it to reach the apical membrane of the epithelial cell. Matrine induces ΔF508-CFTR release from the endoplasmic reticulum to cell cytosol and its localization on the cell membrane. We now have evidence that Matrine and Lumacaftor not only restore the transport of mutant CFTR protein, but probably also counteract the inflammatory process by improving the course of the disease.
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Affiliation(s)
| | - Silvia Franceschelli
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy; (M.P.); (M.P.)
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Di Stefano A, Maniscalco M, Balbi B, Ricciardolo FLM. Oxidative and Nitrosative Stress in the Pathogenesis of Obstructive Lung Diseases of Increasing Severity. Curr Med Chem 2021; 27:7149-7158. [PMID: 32496983 DOI: 10.2174/0929867327666200604165451] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 03/14/2020] [Accepted: 03/16/2020] [Indexed: 11/22/2022]
Abstract
The imbalance between increased oxidative agents and antioxidant defence mechanisms is central in the pathogenesis of obstructive lung diseases such as asthma and COPD. In these patients, there are increased levels of reactive oxygen species. Superoxide anions (O2 -), Hydrogen Peroxide (H2O2) and hydroxyl radicals (•OH) are critical for the formation of further cytotoxic radicals in the bronchi and lung parenchyma. Chronic inflammation, partly induced by oxidative stress, can further increase the oxidant burden through activated phagocytic cells (neutrophils, eosinophils, macrophages), particularly in severer disease states. Antioxidants and anti-inflammatory genes are, in fact, frequently downregulated in diseased patients. Nrf2, which activates the Antioxidant Response Element (ARE) leading to upregulation of GPx, thiol metabolism-associated detoxifying enzymes (GSTs) and stressresponse genes (HO-1) are all downregulated in animal models and patients with asthma and COPD. An exaggerated production of Nitric Oxide (NO) in the presence of oxidative stress can promote the formation of oxidizing reactive nitrogen species, such as peroxynitrite (ONO2 -), leading to nitration and DNA damage, inhibition of mitochondrial respiration, protein dysfunction, and cell damage in the biological systems. Protein nitration also occurs by activation of myeloperoxidase and H2O2, promoting oxidation of nitrite (NO2 -). There is increased nitrotyrosine and myeloperoxidase in the bronchi of COPD patients, particularly in severe disease. The decreased peroxynitrite inhibitory activity found in induced sputum of COPD patients correlates with pulmonary function. Markers of protein nitration - 3- nitrotyrosine, 3-bromotyrosine, and 3-chlorotyrosine - are increased in the bronchoalveolar lavage of severe asthmatics. Targeting the oxidative, nitrosative stress and associated lung inflammation through the use of either denitration mechanisms or new drug delivery strategies for antioxidant administration could improve the treatment of these chronic disabling obstructive lung diseases.
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Affiliation(s)
- Antonino Di Stefano
- Divisione di Pneumologia e Laboratorio di Immunopatologia dell'Apparato Cardio Respiratorio, Istituti Clinici Scientifici Maugeri SpA, Societa Benefit, IRCCS, Veruno, Italy
| | - Mauro Maniscalco
- Divisione di Pneumologia, Istituti Clinici Scientifici Maugeri SpA, Societa Benefit, IRCCS, Telese, Italy
| | - Bruno Balbi
- Divisione di Pneumologia e Laboratorio di Immunopatologia dell'Apparato Cardio Respiratorio, Istituti Clinici Scientifici Maugeri SpA, Societa Benefit, IRCCS, Veruno, Italy
| | - Fabio L M Ricciardolo
- Dipartimento di Scienze Cliniche e Biologiche, AOU, San Luigi, Orbassano, Universita di Torino, Torino, Italy
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Epithelial Dysfunction in Lung Diseases: Effects of Amino Acids and Potential Mechanisms. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1265:57-70. [PMID: 32761570 DOI: 10.1007/978-3-030-45328-2_4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Lung diseases affect millions of individuals all over the world. Various environmental factors, such as toxins, chemical pollutants, detergents, viruses, bacteria, microbial dysbiosis, and allergens, contribute to the development of respiratory disorders. Exposure to these factors activates stress responses in host cells and disrupt lung homeostasis, therefore leading to dysfunctional epithelial barriers. Despite significant advances in therapeutic treatments for lung diseases in the last two decades, novel interventional targets are imperative, considering the side effects and limited efficacy in patients treated with currently available drugs. Nutrients, such as amino acids (e.g., arginine, glutamine, glycine, proline, taurine, and tryptophan), peptides, and bioactive molecules, have attracted more and more attention due to their abilities to reduce oxidative stress, inhibit apoptosis, and regulate immune responses, thereby improving epithelial barriers. In this review, we summarize recent advances in amino acid metabolism in the lungs, as well as multifaceted functions of amino acids in attenuating inflammatory lung diseases based on data from studies with both human patients and animal models. The underlying mechanisms for the effects of physiological amino acids are likely complex and involve cell signaling, gene expression, and anti-oxidative reactions. The beneficial effects of amino acids are expected to improve the respiratory health and well-being of humans and other animals. Because viruses (e.g., coronavirus) and environmental pollutants (e.g., PM2.5 particles) induce severe damage to the lungs, it is important to determine whether dietary supplementation or intravenous administration of individual functional amino acids (e.g., arginine-HCl, citrulline, N-acetylcysteine, glutamine, glycine, proline and tryptophan) or their combinations to affected subjects may alleviate injury and dysfunction in this vital organ.
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Alam W, Khan H, Shah MA, Cauli O, Saso L. Kaempferol as a Dietary Anti-Inflammatory Agent: Current Therapeutic Standing. Molecules 2020; 25:molecules25184073. [PMID: 32906577 PMCID: PMC7570692 DOI: 10.3390/molecules25184073] [Citation(s) in RCA: 155] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/06/2020] [Accepted: 08/19/2020] [Indexed: 01/21/2023] Open
Abstract
Inflammation is a physiological response to different pathological, cellular or vascular damages due to physical, chemical or mechanical trauma. It is characterized by pain, redness, heat and swelling. Current natural drugs are carefully chosen as a novel therapeutic strategy for the management of inflammatory diseases. Different phytochemical constituents are present in natural products. These phytochemicals have high efficacy both in vivo and in vitro. Among them, flavonoids occur in many foods, vegetables and herbal medicines and are considered as the most active constituent, having the ability to attenuate inflammation. Kaempferol is a polyphenol that is richly found in fruits, vegetables and herbal medicines. It is also found in plant-derived beverages. Kaempferol is used in the management of various ailments but there is no available review article that can summarize all the natural sources and biological activities specifically focusing on the anti-inflammatory effect of kaempferol. Therefore, this article is aimed at providing a brief updated review of the literature regarding the anti-inflammatory effect of kaempferol and its possible molecular mechanisms of action. Furthermore, the review provides the available updated literature regarding the natural sources, chemistry, biosynthesis, oral absorption, metabolism, bioavailability and therapeutic effect of kaempferol.
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Affiliation(s)
- Waqas Alam
- Department of Pharmacy, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan;
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan;
- Correspondence: (H.K.); (L.S.)
| | - Muhammad Ajmal Shah
- Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad 38000, Pakistan;
| | - Omar Cauli
- Department of Nursing, University of Valencia, 46010 Valencia, Spain;
| | - Luciano Saso
- Department of Physiology and Pharmacology “Vittorio Erspamer”, Sapienza University, P.le Aldo Moro 5, 00185 Rome, Italy
- Correspondence: (H.K.); (L.S.)
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15
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Zhang F, Liu W, Zhou S, Jiang L, Wang K, Wei Y, Liu A, Wei W, Liu S. Investigation of Environmental Pollutant-Induced Lung Inflammation and Injury in a 3D Coculture-Based Microfluidic Pulmonary Alveolus System. Anal Chem 2020; 92:7200-7208. [PMID: 32233451 DOI: 10.1021/acs.analchem.0c00759] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The health impact of environmental pollution involving an increase in human diseases has been subject to extensive study in recent decades. The methodology in biomimetic investigation of these pathophysiologic events is still in progress to uncover the gaps in knowledge associated with pollution and its influences on health. Herein, we describe a comprehensive evaluation of environmental pollutant-caused lung inflammation and injury using a microfluidic pulmonary alveolus platform with alveolar-capillary interfaces. We performed a microfluidic three-dimensional coculture with physiological microenvironment simulation at microscale control and demonstrated a reliable reconstruction of tissue layers including alveolar epithelium and microvascular endothelium with typical mechanical, structural, and junctional integrity, as well as viability. On-chip detection and analysis of pulmonary alveolus responses focusing on various inflammatory and injurious dynamics to the respective pollutant stimulations were achieved in the coculture-based microfluidic pulmonary alveolus model, in comparison with common on-chip monoculture and off-chip culture tools. We confirmed the synergistic effects of the epithelial and endothelial interfaces on the stimuli resistance and verified the importance of creating complex tissue microenvironments in vitro to explore pollution-involved human pathology. We believe the microfluidic approach presents great promise in environmental monitoring, drug discovery, and tissue engineering.
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Affiliation(s)
- Fen Zhang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Wenming Liu
- School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China
| | - Sisi Zhou
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Ling Jiang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Kan Wang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Yuanqing Wei
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Anran Liu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Wei Wei
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Songqin Liu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
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16
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Helal MG, Megahed NA, Abd Elhameed AG. Saxagliptin mitigates airway inflammation in a mouse model of acute asthma via modulation of NF-kB and TLR4. Life Sci 2019; 239:117017. [PMID: 31678284 DOI: 10.1016/j.lfs.2019.117017] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/13/2019] [Accepted: 10/23/2019] [Indexed: 12/25/2022]
Abstract
Saxagliptin (Saxa), a dipeptidyl dipeptidase-4 (DPP-4) inhibitor, is widely used for the treatment of type 2 diabetes mellitus. It has been documented to have immunomodulatory and anti-inflammatory actions. Our objective was to delineate the protective effect and the underlying mechanism of Saxa-in comparison with Dexamethasone (Dexa) - in airway inflammation induced by ovalbumin (OVA) in mice. METHODS Mice were OVA-sensitized and challenged for the induction of acute asthma. Mice were orally administrated Saxa or Dexa. Total and differential cell counts, lactate dehydrogenase (LDH) and total protein concentrations were assessed in bronchoalveolar lavage fluid (BALF). The toll-like receptor 4 (TLR4), nuclear factor-kappa B (NF-kB), reduced glutathione (GSH), and total nitrate/nitrite products (NOx) levels as well as myeloperoxidase (MPO) activity in lung tissues were measured. Histopathological examination of the lung specimens was carried out using the hematoxylin and eosin (H & E) staining. RESULTS Histopathological examination revealed that both Saxa and Dexa ameliorated OVA-induced inflammatory changes and significantly reduced total and differential leukocyte counts, LDH and total protein level in BALF upon comparison with OVA group. In addition, both treatments significantly mitigated OVA-induced oxidative stress as evidenced by diminished lung NOx level and MPO activity and elevated GSH level. The elevation of TLR4 and NF-kB levels in lung tissue were ameliorated by Saxa and Dexa administration. CONCLUSION Saxa had marked antiasthmatic effect in OVA-induced allergic asthma through modulation of TLR4 and NF-κB signaling. Also, Saxa may represent a promising therapeutic agent for acute allergic asthma.
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Affiliation(s)
- Manar G Helal
- Dep. of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Egypt.
| | | | - Ahmed G Abd Elhameed
- Dep. of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Egypt
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17
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Ren J, Lu Y, Qian Y, Chen B, Wu T, Ji G. Recent progress regarding kaempferol for the treatment of various diseases. Exp Ther Med 2019; 18:2759-2776. [PMID: 31572524 PMCID: PMC6755486 DOI: 10.3892/etm.2019.7886] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 07/16/2019] [Indexed: 12/24/2022] Open
Abstract
Kaempferol, also known as kaempferol-3 or kaempferide, is a flavonoid compound that naturally occurs in tea, as well as numerous common vegetables and fruits, including beans, broccoli, cabbage, gooseberries, grapes, kale, strawberries, tomatoes, citrus fruits, brussel sprouts, apples and grapefruit. The present review mainly summarizes the application of kaempferol in treating diseases and the underlying mechanisms that are currently being studied. Due to its anti-inflammatory properties, it may be used to treat numerous acute and chronic inflammation-induced diseases, including intervertebral disc degeneration and colitis, as well as post-menopausal bone loss and acute lung injury. In addition, it has beneficial effects against cancer, liver injury, obesity and diabetes, inhibits vascular endothelial inflammation, protects the cranial nerve and heart function, and may be used for treating fibroproliferative disorders, including hypertrophic scar.
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Affiliation(s)
- Jie Ren
- Center of Chinese Medical Therapy and Systems Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China.,Institute of Digestive Disease, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China
| | - Yifei Lu
- Center of Chinese Medical Therapy and Systems Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China.,Institute of Digestive Disease, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China
| | - Yanhong Qian
- Center of Chinese Medical Therapy and Systems Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China.,Institute of Digestive Disease, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China
| | - Bozhou Chen
- Center of Chinese Medical Therapy and Systems Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China.,Institute of Digestive Disease, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China
| | - Tao Wu
- Center of Chinese Medical Therapy and Systems Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China.,Institute of Digestive Disease, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China
| | - Guang Ji
- Institute of Digestive Disease, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, P.R. China
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18
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Johnstone J, Nash S, Hernandez E, Rahman MS. Effects of elevated temperature on gonadal functions, cellular apoptosis, and oxidative stress in Atlantic sea urchin Arbacia punculata. MARINE ENVIRONMENTAL RESEARCH 2019; 149:40-49. [PMID: 31150926 DOI: 10.1016/j.marenvres.2019.05.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/19/2019] [Accepted: 05/22/2019] [Indexed: 06/09/2023]
Abstract
Increasing seawater temperature affects growth, reproduction and development in marine organisms. In this study, we examined the effects of elevated temperatures on reproductive functions, heat shock protein 70 (HSP70) and nitrotyrosine protein (NTP, an indicator of reactive nitrogen species) expressions, protein carbonyl (PC, an indicator of oxidative stress) contents, cellular apoptosis, and coelomic fluid (CF) conditions in Atlantic sea urchin. Sea urchins were housed in six aquaria with control (24 °C) and elevated temperatures (28 °C and 32 °C) for a 7-day period. After exposure, sea urchins exhibited decreased percentages of gametes (eggs/sperm), as well as increased HSP70 and NTP expressions in eggs and spermatogenic cells, increased gonadal apoptosis, and decreased CF pH compared to controls. PC contents were also significantly increased in gonadal tissues at higher temperatures. These results suggest that elevated temperature acidifies CF, increases oxidative stress and gonadal apoptosis, and results in impairment of reproductive functions in sea urchins.
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Affiliation(s)
- Jackson Johnstone
- School of Earth, Environmental and Marine Sciences, University of Texas Rio Grande Valley, Brownsville, TX, 78520, USA
| | - Sarah Nash
- School of Earth, Environmental and Marine Sciences, University of Texas Rio Grande Valley, Brownsville, TX, 78520, USA
| | - Eleazar Hernandez
- School of Earth, Environmental and Marine Sciences, University of Texas Rio Grande Valley, Brownsville, TX, 78520, USA
| | - Md Saydur Rahman
- School of Earth, Environmental and Marine Sciences, University of Texas Rio Grande Valley, Brownsville, TX, 78520, USA; Department of Biology, University of Texas Rio Grande Valley, Brownsville, TX, 78520, USA.
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19
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Linden D, Guo-Parke H, Coyle PV, Fairley D, McAuley DF, Taggart CC, Kidney J. Respiratory viral infection: a potential "missing link" in the pathogenesis of COPD. Eur Respir Rev 2019; 28:28/151/180063. [PMID: 30872396 DOI: 10.1183/16000617.0063-2018] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 11/19/2018] [Indexed: 02/07/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is currently the third most common cause of global mortality. Acute exacerbations of COPD frequently necessitate hospital admission to enable more intensive therapy, incurring significant healthcare costs. COPD exacerbations are also associated with accelerated lung function decline and increased risk of mortality. Until recently, bacterial pathogens were believed to be responsible for the majority of disease exacerbations. However, with the advent of culture-independent molecular diagnostic techniques it is now estimated that viruses are detected during half of all COPD exacerbations and are associated with poorer clinical outcomes. Human rhinovirus, respiratory syncytial virus and influenza are the most commonly detected viruses during exacerbation. The role of persistent viral infection (adenovirus) has also been postulated as a potential pathogenic mechanism in COPD. Viral pathogens may play an important role in driving COPD progression by acting as triggers for exacerbation and subsequent lung function decline whilst the role of chronic viral infection remains a plausible hypothesis that requires further evaluation. There are currently no effective antiviral strategies for patients with COPD. Herein, we focus on the current understanding of the cellular and molecular mechanisms of respiratory viral infection in COPD.
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Affiliation(s)
- Dermot Linden
- Airway Innate Immunity Research Group (AiiR), Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queens University Belfast, Belfast, UK
| | - Hong Guo-Parke
- Airway Innate Immunity Research Group (AiiR), Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queens University Belfast, Belfast, UK
| | - Peter V Coyle
- The Regional Virus Laboratory, Belfast Trust, Belfast, UK
| | - Derek Fairley
- The Regional Virus Laboratory, Belfast Trust, Belfast, UK
| | - Danny F McAuley
- Airway Innate Immunity Research Group (AiiR), Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queens University Belfast, Belfast, UK
| | - Clifford C Taggart
- Airway Innate Immunity Research Group (AiiR), Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queens University Belfast, Belfast, UK
| | - Joe Kidney
- Dept of Respiratory Medicine, Mater Hospital Belfast, Belfast, UK
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Cerebrospinal inflammatory response following scorpion envenomation: role of histamine H1 and H3 receptors. Inflammopharmacology 2019; 27:589-601. [PMID: 30604198 DOI: 10.1007/s10787-018-00553-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 12/14/2018] [Indexed: 01/04/2023]
Abstract
BACKGROUND The mechanism of the inflammatory process induced by scorpion venom in the cerebrospinal tissues has not yet been completely elucidated. Therefore, we aimed to investigate the role of histamine through its H1 and H3 receptors in this process. METHODS Histamine H1 and H3 receptor antagonists, Hydroxyzine (10 mg/kg) and Betaserc (20 mg/kg), respectively, were administered by intraperitoneal route to mice 1 h before subcutaneous envenomation with a subletal dose (0.5 mg/kg) of Androctonus australis hector venom. Cerebrospinal inflammation response was assessed 24 h after envenomation by evaluating the vascular permeability changes, inflammatory cell infiltration, oxidative/nitrosative stress marker levels (hydrogen peroxide, nitric oxide, malondialdehyde, glutathione and catalase) and by histological examination of cerebrospinal tissue. RESULTS Envenomed mice displayed an installation of an inflammatory response marked by increased vascular permeability (76% and 68% in brain and spinal cord, respectively, in comparison to controls), inflammatory cell infiltration, increased pro-oxidant levels and decreased anti-oxidant markers (p < 0.05 to p < 0.001). Scorpion venom also induced structural changes in brain and spinal cord tissues. Hydroxyzine seemed to be more efficient than Betaserc in the prevention of the induced cerebrospinal inflammation response, as evidenced by the decreased vascular permeability, inflammatory cell infiltration, pro-oxidant levels, increased anti-oxidant defense (p < 0.05 to p < 0.001) and a reduction of the anatomo-pathological alterations. CONCLUSION The results showed that the histamine H1 receptor is more involved in the induced central nervous system inflammatory response during scorpion envenomation.
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Bullone M, Lavoie JP. The Contribution of Oxidative Stress and Inflamm-Aging in Human and Equine Asthma. Int J Mol Sci 2017; 18:ijms18122612. [PMID: 29206130 PMCID: PMC5751215 DOI: 10.3390/ijms18122612] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 11/27/2017] [Accepted: 11/29/2017] [Indexed: 02/07/2023] Open
Abstract
Aging is associated with a dysregulation of the immune system, leading to a general pro-inflammatory state of the organism, a process that has been named inflamm-aging. Oxidative stress has an important role in aging and in the regulation of immune responses, probably playing a role in the development of age-related diseases. The respiratory system function physiologically declines with the advancement of age. In elderly asthmatic patients, this may contribute to disease expression. In this review, we will focus on age-related changes affecting the immune system and in respiratory structure and function that could contribute to asthma occurrence, and/or clinical presentation in the elderly. Also, naturally occurring equine asthma will be discussed as a possible model for studying the importance of oxidative stress and immun-aging/inflamm-aging in humans.
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Affiliation(s)
- Michela Bullone
- Department of Clinical and Biological Sciences, University of Turin, AUO San Luigi Gonzaga, Regione Gonzole 10, 10043 Orbassano, Italy.
| | - Jean-Pierre Lavoie
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, 3200 Rue Sicotte, St-Hyacinthe, QC J2S 2M2, Canada.
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Mohamed AF, El-Yamany MF, El-Batrawy FA, Abdel-Aziz MT. JNJ7777120 Ameliorates Inflammatory and Oxidative Manifestations in a Murine Model of Contact Hypersensitivity via Modulation of TLR and Nrf2 Signaling. Inflammation 2017; 41:378-389. [DOI: 10.1007/s10753-017-0693-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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23
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Giacomini D, Musumeci R, Galletti P, Martelli G, Assennato L, Sacchetti G, Guerrini A, Calaresu E, Martinelli M, Cocuzza C. 4-Alkyliden-azetidinones modified with plant derived polyphenols: Antibacterial and antioxidant properties. Eur J Med Chem 2017; 140:604-614. [DOI: 10.1016/j.ejmech.2017.09.048] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 09/21/2017] [Accepted: 09/21/2017] [Indexed: 12/01/2022]
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Liu Z, Sun M, Wang Y, Zhang L, Zhao H, Zhao M. Silymarin attenuated paraquat-induced cytotoxicity in macrophage by regulating Trx/TXNIP complex, inhibiting NLRP3 inflammasome activation and apoptosis. Toxicol In Vitro 2017; 46:265-272. [PMID: 29054699 DOI: 10.1016/j.tiv.2017.10.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 10/14/2017] [Accepted: 10/15/2017] [Indexed: 01/05/2023]
Abstract
Oxidative stress and inflammation are involved in paraquat-induced cytotoxicity. Silymarin can exert a potent antioxidative and anti-inflammatory effect in various pathophysiological processes. The aim of this current study is to explore the protective effect and potential mechanism of silymarin in paraquat-induced macrophage injury. Cells were pretreated with different doses of silymarin for 3h before exposure to paraquat. At 24h after exposure to paraquat, the paraquat-induced cytotoxicity to macrophage was measured via the MTT assay and LDH release. The levels of intracellular reactive oxygen species, GSH-Px, SOD, and lipid peroxidation product malondialdehyde were measured to evaluate the oxidative effect of paraquat. NLRP3 inflammasome and cytokines secretion in macrophage exposed to paraquat at 24h were measured via immunofluorescence microscopy, western blot or Elisa. Our results revealed that paraquat could dramatically cause cytotoxicity and reactive oxygen species generation, enhance TXNIP expression, and induce NLRP3 inflammasome activation and cytokines secretion. The pretreatment with silymarin could remarkably reduce the cytotoxicity, promote the expression of Trx and antioxidant enzymes, and suppress the TXNIP and NLRP3 inflammasome activation. In conclusion, silymarin attenuated paraquat-induced cytotoxicity in macrophage by inhibiting oxidative stress, NLRP3 inflammasome activation, cytokines secretion and apoptosis.
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Affiliation(s)
- Zhenning Liu
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, No.36, Sanhao Street, Heping District, Shenyang, Liaoning 110004, China
| | - Mingli Sun
- Department of Pharmacology, School of Pharmacy, China Medical University, No.77, Puhe Road, Shenyang North New Area, Shenyang, Liaoning 110122, China
| | - Yu Wang
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, No.36, Sanhao Street, Heping District, Shenyang, Liaoning 110004, China
| | - Lichun Zhang
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, No.36, Sanhao Street, Heping District, Shenyang, Liaoning 110004, China
| | - Hang Zhao
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, No.36, Sanhao Street, Heping District, Shenyang, Liaoning 110004, China
| | - Min Zhao
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, No.36, Sanhao Street, Heping District, Shenyang, Liaoning 110004, China.
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Age-Related Changes in Inflammatory Response after Experimental Envenomation: Impact on the Susceptibility to Androctonus australis hector Venom. Inflammation 2017; 40:1131-1142. [DOI: 10.1007/s10753-017-0557-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Propofol inhibits LPS-induced apoptosis in lung epithelial cell line, BEAS-2B. Biomed Pharmacother 2017; 87:180-187. [DOI: 10.1016/j.biopha.2016.12.074] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 12/11/2016] [Accepted: 12/19/2016] [Indexed: 11/23/2022] Open
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Kovacs L, Su Y. Redox-Dependent Calpain Signaling in Airway and Pulmonary Vascular Remodeling in COPD. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 967:139-160. [PMID: 29047085 PMCID: PMC7036267 DOI: 10.1007/978-3-319-63245-2_9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The calcium-dependent cytosolic, neutral, thiol endopeptidases, calpains, perform limited cleavage of their substrates thereby irreversibly changing their functions. Calpains have been shown to be involved in several physiological processes such as cell motility, proliferation, cell cycle, signal transduction, and apoptosis. Overactivation of calpain or mutations in the calpain genes contribute to a number of pathological conditions including neurodegenerative disorders, rheumatoid arthritis, cancer, and lung diseases. High concentrations of reactive oxygen and nitrogen species (RONS) originated from cigarette smoke or released by numerous cell types such as activated inflammatory cells and other respiratory cells cause oxidative and nitrosative stress contributing to the pathogenesis of COPD. RONS and calpain play important roles in the development of airway and pulmonary vascular remodeling in COPD. Published data show that increased RONS production is associated with increased calpain activation and/or elevated calpain protein level, leading to epithelial or endothelial barrier dysfunction, neovascularization, lung inflammation, increased smooth muscle cell proliferation, and deposition of extracellular matrix protein. Further investigation of the redox-dependent calpain signaling may provide future targets for the prevention and treatment of COPD.
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Affiliation(s)
- Laszlo Kovacs
- Department of Pharmacology & Toxicology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA
| | - Yunchao Su
- Department of Pharmacology & Toxicology, Medical College of Georgia, Augusta University, 1120 15th Street, Augusta, GA, 30912, USA.
- Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA, 30912, USA.
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, 30912, USA.
- Research Service, Charlie Norwood Veterans Affairs Medical Center, Augusta, GA, 30912, USA.
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Tiron ameliorates oxidative stress and inflammation in a murine model of airway remodeling. Int Immunopharmacol 2016; 39:172-180. [PMID: 27485290 DOI: 10.1016/j.intimp.2016.07.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 07/13/2016] [Accepted: 07/25/2016] [Indexed: 01/01/2023]
Abstract
Airway remodeling includes lung structural changes that have a role in the irreversibility of pulmonary dysfunction shown in chronic bronchial asthmatics. The current experiment investigated the effect of the mitochondrial antioxidant, tiron in comparison with dexamethasone (DEXA) on airway remodeling in chronic asthma. Sensitized BALB/c mice were challenged with ovalbumin (OVA) aerosol for 8weeks, OVA sensitized-challenged mice were treated with either DEXA or tiron, respectively. After that, lung tissue and bronchoaveolar lavage fluid (BALF) were used for measurement of different biological markers. Lungs were examined for histopathological changes and immunohistochemistry. Upon comparing with vehicle treated animals, trion or DEXA treatment significantly reduced eosinophils, lymphocytes, neutrophils and macrophages count in the BALF. Both drugs significantly alleviated chronic OVA-induced oxidative stress as illustrated by decreased pulmonary malondialdenhyde (MDA) and increased glutathione (GSH) and superoxide dismutase (SOD) levels. Asthmatic mice exhibited elevated levels of NOx, IL-13 and TGF-β1 that were reduced by DEXA and tiron. Histopathological changes and increased immunoreactivity of nuclear factor-Kappa B (NF-κ B) in OVA-challenged mice were minimized by tiron and DEXA treatment. In conclusion, in this model of chronic asthma DEXA and tiron ameliorated airway remodeling and inflammation in experimental chronic asthma with no difference between the effect of tiron and DEXA. Tiron has a potential role as adjuvant treatment in chronic asthma.
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Nakib I, Martin-Eauclaire MF, Laraba-Djebari F. Involvement of Cholinergic and Adrenergic Receptors in Pathogenesis and Inflammatory Response Induced by Alpha-Neurotoxin Bot III of Scorpion Venom. Inflammation 2016; 39:1670-80. [PMID: 27395044 DOI: 10.1007/s10753-016-0401-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Bot III neurotoxin is the most lethal α neurotoxin purified from Buthus occitanus tunetanus scorpion venom. This toxin binds to the voltage-gated sodium channel of excitable cells and blocks its inactivation, inducing an increased release of neurotransmitters (acetylcholine and catecholamines). This study aims to elucidate the involvement of cholinergic and adrenergic receptors in pathogenesis and inflammatory response triggered by this toxin. Injection of Bot III to animals induces an increase of peroxidase activities, an imbalance of oxidative status, tissue damages in lung parenchyma, and myocardium correlated with metabolic disorders. The pretreatment with nicotine (nicotinic receptor agonist) or atropine (muscarinic receptor antagonist) protected the animals from almost all disorders caused by Bot III toxin, especially the immunological alterations. Bisoprolol administration (selective β1 adrenergic receptor antagonist) was also efficient in the protection of animals, mainly on tissue damage. Propranolol (non-selective adrenergic receptor antagonist) showed less effect. These results suggest that both cholinergic and adrenergic receptors are activated in the cardiopulmonary manifestations induced by Bot III. Indeed, the muscarinic receptor appears to be more involved than the nicotinic one, and the β1 adrenergic receptor seems to dominate the β2 receptor. These results showed also that the activation of nicotinic receptor leads to a significant protection of animals against Bot III toxin effect. These findings supply a supplementary data leading to better understanding of the mechanism triggered by scorpionic neurotoxins and suggest the use of drugs targeting these receptors, especially the nicotinic one in order to counteract the inflammatory response observed in scorpion envenomation.
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Affiliation(s)
- Imene Nakib
- USTHB, Faculty of Biological Sciences, Laboratory of Cellular and Molecular Biology, BP 32, El-Alia Bab Ezzouar, 16111, Algiers, Algeria
| | - Marie-France Martin-Eauclaire
- Aix-Marseille University, CNRS UMR7290 CRN2M, IFR Jean-Roche, Université de la Méditerranée, Faculté de Médecine Nord, Bd Pierre Dramard, 13916, Marseille, Cedex 20, France
| | - Fatima Laraba-Djebari
- USTHB, Faculty of Biological Sciences, Laboratory of Cellular and Molecular Biology, BP 32, El-Alia Bab Ezzouar, 16111, Algiers, Algeria.
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Lemos VS, Aires RD, Ladeira M, Guatimosim S. Fullerene-Derivatives as Therapeutic Agents in Respiratory System and Neurodegenerative Disorders. BIOENGINEERING APPLICATIONS OF CARBON NANOSTRUCTURES 2016. [DOI: 10.1007/978-3-319-25907-9_5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Olivier DK, Van Vuuren SF, Moteetee AN. Annickia affinis and A. chlorantha (Enantia chlorantha)--A review of two closely related medicinal plants from tropical Africa. JOURNAL OF ETHNOPHARMACOLOGY 2015; 176:438-462. [PMID: 26481608 DOI: 10.1016/j.jep.2015.10.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 08/31/2015] [Accepted: 10/12/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Annickia affinis (Exell) Versteegh & Sosef, closely related to A. chlorantha Setten & P.J.Maas (both species also referred to as Enantia chlorantha Oliv.), from the Annonaceae family, are multi-purpose medicinal plants used widely across tropical Africa. The two Annickia species are morphologically distinct from each other and have different distribution patterns, but are frequently confused. Furthermore, the name Enantia chlorantha is an illegitimate name, but is still used today. MATERIALS AND METHODS A review of the literature was undertaken and an in-depth analysis of previous research and future prospectives are considered. While a myriad of publications cite the species "Enantia chlorantha", this is not the case for A. affinis and A. chlorantha, and no reviews are available for any of the species to date. Consequently, a summary of their ethnobotany, phytochemistry and biological properties is presented here (for the period 1933 - November 2014) in order to substantiate their traditional importance as medicines for rural people in Africa. RESULTS To this effect, these species seem to be the preferred traditional treatments for malaria in tropical Africa, an area suffering heavily under the malaria pandemic. Their chemical composition is dominated particularly by various isoquinoline alkaloids, as well as by acetogenins and sesquiterpenes, which have been isolated from the bark and leaves. All three of these classes of compounds have been reported to exhibit noteworthy biological activity. CONCLUSIONS Due to their widespread use, especially of the bark, these species have already been categorized as threatened with extinction. Consequently this study further aims to identify areas where more research needs to be conducted involving these important species, and also to suggest possible means of increasing the biological activities of their extracts as a way to conserve the species.
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Affiliation(s)
- D K Olivier
- Department of Pharmacy and Pharmacology, University of the Witwatersrand, 7 York Road, Parktown 2193, South Africa
| | - S F Van Vuuren
- Department of Pharmacy and Pharmacology, University of the Witwatersrand, 7 York Road, Parktown 2193, South Africa.
| | - A N Moteetee
- Department of Botany and Plant Biotechnology, University of Johannesburg, Cnr Kingsway and University Road, Auckland Park 2006, Johannesburg, South Africa
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Yan Y, Xin A, Liu Q, Huang H, Shao Z, Zang Y, Chen L, Sun Y, Gao H. Induction of ROS generation and NF-κB activation in MARC-145 cells by a novel porcine reproductive and respiratory syndrome virus in Southwest of China isolate. BMC Vet Res 2015; 11:232. [PMID: 26358082 PMCID: PMC4565009 DOI: 10.1186/s12917-015-0480-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 07/13/2015] [Indexed: 01/06/2023] Open
Abstract
Background Porcine reproductive and respiratory syndrome virus (PRRSV) is the cause of an economically important swine disease that has devastated the swine industry since the late 1980s. The aim of the present study was to investigate the interaction between reactive oxygen species (ROS) and NF-κB by PRRSV infection. Results We isolated the local strain of PRRSV from southwest China, designated YN-2011, then sequenced and analyzed the genome. YN-2011 was then used to evaluate the interaction of ROS and NF-κB. In PRRSV infected MARC-145 cells, there was a time-dependent increase in ROS and Maleic Dialdehyde (MDA). Accordingly, NF-κB activation was also increased as PRRSV infection progressed. Degradation of IκB mRNA was detected late in PRRSV infection, and overexpression of the dominant negative form of IκBα significantly suppressed NF-κB induced by PRRSV. Conclusions The results indicate that the generation of ROS is involved in PRRSV replication and this progression is associated with the alteration in NF-κB activity induced by ROS. These results should extend our better understanding the interaction between PRRSV and host MARC-145 cells. Electronic supplementary material The online version of this article (doi:10.1186/s12917-015-0480-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yulin Yan
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China. .,State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, People's Republic of China.
| | - Aiguo Xin
- Yunnan Animal Science and Veterinary Institute, Kunming, Yunnan, People's Republic of China.
| | - Qian Liu
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China.
| | - Hui Huang
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China.
| | - Zhiyong Shao
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China.
| | - Yating Zang
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China.
| | - Ling Chen
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China.
| | - Yongke Sun
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China.
| | - Hong Gao
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China.
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Song W, Yu Z, Doran SF, Ambalavanan N, Steele C, Garantziotis S, Matalon S. Respiratory syncytial virus infection increases chlorine-induced airway hyperresponsiveness. Am J Physiol Lung Cell Mol Physiol 2015; 309:L205-10. [PMID: 26071553 DOI: 10.1152/ajplung.00159.2015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 06/08/2015] [Indexed: 12/21/2022] Open
Abstract
Exposure to chlorine (Cl2) damages airway and alveolar epithelia resulting in acute lung injury and reactive airway hyperresponsiveness (AHR) to methacholine. However, little is known about the effect of preexisting respiratory disease on Cl2-induced lung injury. By using a murine respiratory syncytial virus (RSV) infection model, we found that preexisting RSV infection increases Cl2 (187 ppm for 30 min)-induced lung inflammation and airway AHR at 24 h after exposure (5 days after infection). RSV infection and Cl2 exposure synergistically induced oxygen desaturation and neutrophil infiltration and increased MCP-1, MIP-1β, IL-10, IFN-γ, and RANTES concentrations in the bronchoalveolar lavage fluid (BALF). In contrast, levels of type 2 cytokines (i.e., IL-4, IL-5, IL-9, and IL-13) were not significantly affected by either RSV infection or Cl2 exposure. Cl2 exposure, but not RSV infection, induced AHR to methacholine challenge as measured by flexiVent. Moreover, preexisting RSV infection amplified BALF levels of hyaluronan (HA) and AHR. The Cl2-induced AHR was mitigated by treatment with inter-α-trypsin inhibitor antibody, which inhibits HA signaling, suggesting a mechanism of HA-mediated AHR from exacerbated oxidative injury. Our results show for the first time that preexisting RSV infection predisposes the lung to Cl2-induced injury. These data emphasize the necessity for further research on the effects of Cl2 in vulnerable populations and the development of appropriate treatments.
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Affiliation(s)
- Weifeng Song
- Department of Anesthesiology, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Zhihong Yu
- Department of Anesthesiology, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Stephen F Doran
- Department of Anesthesiology, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Namasivayam Ambalavanan
- Department of Pediatrics (Neonatology), School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Chad Steele
- Department of Medicine (Pulmonary, Critical Care and Sleep), and the Pulmonary Injury and Repair Center, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama; and
| | - Stavros Garantziotis
- Laboratory of Respiratory Biology, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | - Sadis Matalon
- Department of Anesthesiology, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama;
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Kaempferol and inflammation: From chemistry to medicine. Pharmacol Res 2015; 99:1-10. [PMID: 25982933 DOI: 10.1016/j.phrs.2015.05.002] [Citation(s) in RCA: 335] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 05/05/2015] [Accepted: 05/06/2015] [Indexed: 02/08/2023]
Abstract
Inflammation is an important process of human healing response, wherein the tissues respond to injuries induced by many agents including pathogens. It is characterized by pain, redness and heat in the injured tissues. Chronic inflammation seems to be associated with different types of diseases such as arthritis, allergies, atherosclerosis, and even cancer. In recent years natural product based drugs are considered as the novel therapeutic strategy for prevention and treatment of inflammatory diseases. Among the different types of phyto-constituents present in natural products, flavonoids which occur in many vegetable foods and herbal medicines are considered as the most active constituent, which has the potency to ameliorate inflammation under both in vitro and in vivo conditions. Kaempferol is a natural flavonol present in different plant species, which has been described to possess potent anti-inflammatory properties. Despite the voluminous literature on the anti-inflammatory effects of kaempferol, only very limited review articles has been published on this topic. Hence the present review is aimed to provide a critical overview on the anti-inflammatory effects and the mechanisms of action of kaempferol, based on the current scientific literature. In addition, emphasis is also given on the chemistry, natural sources, bioavailability and toxicity of kaempferol.
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Propofol Attenuates Lipopolysaccharide-Induced Reactive Oxygen Species Production Through Activation of Nrf2/GSH and Suppression of NADPH Oxidase in Human Alveolar Epithelial Cells. Inflammation 2014; 38:415-23. [DOI: 10.1007/s10753-014-0046-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Kubysheva N, Soodaeva S, Postnikova L, Novikov V, Maksimova A, Chuchalin A. Associations between indicators of nitrosative stress and levels of soluble HLA-I, CD95 molecules in patients with COPD. COPD 2014; 11:639-44. [PMID: 24884928 DOI: 10.3109/15412555.2014.898042] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
At the present stage of study of chronic obstructive pulmonary disease (COPD) one of the problem is the definition of new criteria for the topical and systemic chronic inflammation of this disease. The aim of the research was to study the concentration of nitric oxide metabolites, the level of soluble human leukocyte antigens class I (sHLA-I) and of soluble CD95 molecules (sCD95) in the serum of blood and exhaled breath condensate (EBC) in patients with exacerbation of COPD. We investigated 49 moderate-to-severe COPD patients with exacerbation, and 21 healthy nonsmokers. The concentration of sHLA-I and sCD95 molecules was studied in serum and in EBC using the ELISA method. The nitrosative stress was evaluated by the measurement of NO2(-) levels in the serum and the concentration of ΣNO2(2)/NO3(2) in the EBC. Exacerbation of COPD is associated with increasing concentrations of NO2(2) in the serum and of the levels of ΣNO2(2)/NO3(2) in the EBC, together with the changing concentration of sHLA-I and sCD95 molecules in the both biological liquid. An association was discovered between the exacerbation of COPD and the indicators of nitrosative stress, the parameters of lung function and the concentration of sHLA-I, sCD95 molecules. The findings suggest a pathogenetic role of nitrosative stress and of soluble molecules of HLA-I and CD95 in the progression of COPD. The studied markers can be used as predictors of unfavourable prognoses of COPD and as quantitative criteria in the diagnosis of exacerbation of moderate-to-severe COPD.
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Affiliation(s)
- Nailya Kubysheva
- 1Lobachevsky State University of Nizhny Novgorod , Nizhny Novgorod , Russian Federation
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Lamraoui A, Adi-Bessalem S, Laraba-Djebari F. Modulation of Tissue Inflammatory Response by Histamine Receptors in Scorpion Envenomation Pathogenesis: Involvement of H4 Receptor. Inflammation 2014; 37:1689-704. [DOI: 10.1007/s10753-014-9898-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Alveolar Macrophage Polarisation in Lung Cancer. LUNG CANCER INTERNATIONAL 2014; 2014:721087. [PMID: 26316944 PMCID: PMC4437403 DOI: 10.1155/2014/721087] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 04/11/2014] [Indexed: 01/03/2023]
Abstract
The role of alveolar macrophages in lung cancer is multifaceted and conflicting. Alveolar macrophage secretion of proinflammatory cytokines has been found to enhance antitumour functions, cytostasis (inhibition of tumour growth), and cytotoxicity (macrophage-mediated killing). In contrast, protumour functions of alveolar macrophages in lung cancer have also been indicated. Inhibition of antitumour function via secretion of the anti-inflammatory cytokine IL-10 as well as reduced secretion of proinflammatory cytokines and reduction of mannose receptor expression on alveolar macrophages may contribute to lung cancer progression and metastasis. Alveolar macrophages have also been found to contribute to angiogenesis and tumour growth via the secretion of IL-8 and VEGF. This paper reviews the evidence for a dual role of alveolar macrophages in lung cancer progression.
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Lindsay CD, Griffiths GD. Addressing bioterrorism concerns: options for investigating the mechanism of action of Staphylococcus aureus enterotoxin B. Hum Exp Toxicol 2013; 32:606-19. [PMID: 23023027 DOI: 10.1177/0960327112458941] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Staphylococcal enterotoxin B (SEB) is of concern to military and civilian populations as a bioterrorism threat agent. It is a highly potent toxin produced by Staphylococcus aureus and is stable in storage and under aerosolisation; it is able to produce prolonged highly incapacitating illness at very low-inhaled doses and death at elevated doses. Concerns regarding SEB are compounded by the lack of effective medical countermeasures for mass treatment of affected populations. This article considers the mechanism of action of SEB, the availability of appropriate experimental models for evaluating the efficacy of candidate medical countermeasures with particular reference to the need to realistically model SEB responses in man and the availability of candidate countermeasures (with an emphasis on commercial off-the-shelf options). The proposed in vitro approaches would be in keeping with Dstl’s commitment to reduction, refinement and replacement of animal models in biomedical research, particularly in relation to identifying valid alternatives to the use of nonhuman primates in experimental studies.
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Affiliation(s)
- C D Lindsay
- Biomedical Sciences Department, Dstl Porton Down, Salisbury, Wiltshire, UK.
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Hung CY, Huang FL, Shi LS, Ka SM, Wang JY, Tsai YC, Hung TJ, Ye YL. The Ethanol Extract of Osmanthus fragrans Flowers Reduces Oxidative Stress and Allergic Airway Inflammation in an Animal Model. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2013; 2013:304290. [PMID: 24386002 PMCID: PMC3872418 DOI: 10.1155/2013/304290] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Revised: 11/18/2013] [Accepted: 11/19/2013] [Indexed: 11/24/2022]
Abstract
The Osmanthus fragrans flower, a popular herb in Eastern countries, contains several antioxidant compounds. Ben Cao Gang Mu, traditional Chinese medical literature, describes the usefulness of these flowers for phlegm and stasis reduction, arrest of dysentery with blood in the bowel, and stomachache and diarrhea treatment. However, modern evidence regarding the therapeutic efficacy of these flowers is limited. This study was aimed at assessing the antioxidative effects of the ethanol extract of O. fragrans flowers (OFE) in vivo and evaluating its antioxidant maintenance and therapeutic effect on an allergic airway inflammation in mice. After OFE's oral administration to mice, the values obtained in the oxygen radical absorbance capacity assay as well as the glutathione concentration in the lungs and spleens of mice increased while thiobarbituric acid reactive substances decreased significantly, indicating OFE's significant in vivo antioxidant activity. OFE was also therapeutically efficacious in a mouse model of ovalbumin-induced allergic airway inflammation. Orally administered OFE suppressed ovalbumin-specific IgE production and inflammatory cell infiltration in the lung. Moreover, the antioxidative state of the mice improved. Thus, our findings confirm the ability of the O. fragrans flowers to reduce phlegm and suggest that OFE may be useful as an antiallergic agent.
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Affiliation(s)
- Chien-Ya Hung
- Department of Food Nutrition, Chung Hwa University of Medical Technology, Tainan 71703, Taiwan
| | - Fu-Long Huang
- Graduate Institute of Food Science, National Chiayi University, Chiayi 60004, Taiwan
| | - Li-Shian Shi
- Department of Biotechnology, National Formosa University, Yunlin 63201, Taiwan
| | - Shuk-Man Ka
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei 11490, Taiwan
| | - Jing-Yao Wang
- Department of Biotechnology, National Formosa University, Yunlin 63201, Taiwan
| | - Yu-Cheng Tsai
- Department of Food Nutrition, Chung Hwa University of Medical Technology, Tainan 71703, Taiwan
| | - Tsung-Jen Hung
- Department of Graduate Institute of Biomedical Science, Chung Hwa University of Medical Technology, Tainan 71703, Taiwan
| | - Yi-Ling Ye
- Department of Biotechnology, National Formosa University, Yunlin 63201, Taiwan
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Usher AKH, Stockley RA. The link between chronic periodontitis and COPD: a common role for the neutrophil? BMC Med 2013; 11:241. [PMID: 24229090 PMCID: PMC4225606 DOI: 10.1186/1741-7015-11-241] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Accepted: 11/01/2013] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND The possible relationship between chronic inflammatory diseases and their co-morbidities has become an increasing focus of research. Both chronic periodontitis and chronic obstructive pulmonary disease are neutrophilic, inflammatory conditions characterized by the loss of local connective tissue. Evidence suggests an association and perhaps a causal link between the two diseases. However, the nature of any relationship between them is unclear, but if pathophysiologically established may have wide-reaching implications for targeted treatments to improve outcomes and prognosis. DISCUSSION There have been a number of epidemiological studies undertaken demonstrating an independent association between chronic periodontitis and chronic obstructive pulmonary disease. However, many of them have significant limitations, and drawing firm conclusions regarding causality may be premature. Although the pathology of both these diseases is complex and involves many cell types, such as CD8 positive cells and macrophages, both conditions are predominantly characterized by neutrophilic inflammation. Increasingly, there is evidence that the two conditions are underpinned by similar pathophysiological processes, especially centered on the functions of the neutrophil. These include a disturbance in protease/anti-protease and redox state balance. The association demonstrated by epidemiological studies, as well as emerging similarities in pathogenesis at the level of the neutrophil, suggest a basis for testing the effects of treatment for one condition upon the severity of the other. SUMMARY Although the evidence of an independent association between chronic periodontitis and chronic obstructive pulmonary disease grows stronger, there remains a lack of definitive studies designed to establish causality and treatment effects. There is a need for future research to be focused on answering these questions.
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Affiliation(s)
- Adam K H Usher
- Lung Investigation Unit, Queen Elizabeth Hospital, Mindelsohn Way, Edgbaston, Birmingham B15 2WB, UK.
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Okubo H, Shaheen SO, Ntani G, Jameson KA, Syddall HE, Sayer AA, Dennison EM, Cooper C, Robinson SM. Processed meat consumption and lung function: modification by antioxidants and smoking. Eur Respir J 2013; 43:972-82. [PMID: 24176995 DOI: 10.1183/09031936.00109513] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Unhealthy dietary patterns are associated with poor lung function. It is not known whether this is due to low consumption of antioxidant-rich fruit and vegetables, or is a consequence of higher intakes of harmful dietary constituents, such as processed meat. We examined the individual and combined associations of processed meat, fruit and vegetable consumption and dietary total antioxidant capacity (TAC) with lung function among 1551 males and 1391 females in the UK in the Hertfordshire Cohort Study. Diet was assessed using a food frequency questionnaire. After controlling for confounders, processed meat consumption was negatively associated with forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC) and FEV1/FVC ratio in males and females, while fruit and vegetable consumption and dietary TAC were positively associated with FEV1 and FVC, but not FEV1/FVC ratio. In males, the negative association between processed meat consumption and FEV1 was more marked in those who had low fruit and vegetable consumption (p=0.035 for interaction), and low dietary TAC (p=0.025 for interaction). The deficit in FEV1/FVC associated with processed meat consumption was larger in males who smoked (p=0.022 for interaction). Higher processed meat consumption is associated with poorer lung function, especially in males who have lower fruit and vegetable consumption or dietary TAC, and among current smokers.
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Hao Y, Kuang Z, Xu Y, Walling BE, Lau GW. Pyocyanin-induced mucin production is associated with redox modification of FOXA2. Respir Res 2013; 14:82. [PMID: 23915402 PMCID: PMC3765780 DOI: 10.1186/1465-9921-14-82] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 07/23/2013] [Indexed: 11/10/2022] Open
Abstract
Background The redox-active pyocyanin (PCN) is a toxic, secondary metabolite secreted by the respiratory pathogen Pseudomonas aeruginosa (PA). Previously, we have shown that mouse lungs chronically exposed to PCN develop goblet cell hyperplasia and metaplasia (GCHM) and mucus hypersecretion, fibrosis and emphysema. These pathological features are commonly found in the airways of several chronic lung diseases, including cystic fibrosis (CF), as well as in mouse airways deficient in the forkhead box A2 (FOXA2), a transcriptional repressor of goblet GCHM and mucus biosynthesis. Furthermore, PCN inhibits FOXA2 by activating the pro-GCHM signaling pathways Stat6 and EGFR. However, it is not known whether PCN-generated reactive oxygen (ROS) and nitrogen (RNS) species posttranslationally modify and inactivate FOXA2. Methods We examined the posttranslational modifications of FOXA2 by PCN using specific antibodies against oxidation, nitrosylation, acetylation and ubiquitination. Electrophoretic mobility shift assay (EMSA) was used to examine the ability of modified FOXA2 to bind the promoter of MUC5B mucin gene. In addition, we used quantitative real time PCR, ELISA, immunofluorescence and mouse lung infection to assess whether the loss of FOXA2 function caused GCHM and mucin overexpression. Finally, we examined the restoration of FOXA2 function by the antioxidant glutathione (GSH). Results We found that PCN-generated ROS/RNS caused nitrosylation, acetylation, ubiquitination and degradation of FOXA2. Modified FOXA2 had reduced ability to bind the promoter of the MUC5B gene. The antioxidant GSH alleviated the modification of FOXA2 by PCN, and inhibited the overexpression of MUC5AC and MUC5B mucins. Conclusion These results suggest that PCN-mediated posttranslational modifications of FOXA2 are positively correlated with GCHM and overexpression of airway mucins. Furthermore, antioxidant treatment restores the function of FOXA2 to attenuate GCHM and mucus hypersecretion.
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Affiliation(s)
- Yonghua Hao
- Department of Pathobiology, University of Illinois at Urbana-Champaign 2001, Lincoln Avenue, Urbana, IL, 61802, United States of America.
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Monocyclic β-lactams as antibacterial agents: Facing antioxidant activity of N-methylthio-azetidinones. Eur J Med Chem 2013; 60:340-9. [DOI: 10.1016/j.ejmech.2012.12.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 11/29/2012] [Accepted: 12/08/2012] [Indexed: 01/16/2023]
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Garofalo RP, Kolli D, Casola A. Respiratory syncytial virus infection: mechanisms of redox control and novel therapeutic opportunities. Antioxid Redox Signal 2013; 18:186-217. [PMID: 22799599 PMCID: PMC3513983 DOI: 10.1089/ars.2011.4307] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Respiratory syncytial virus (RSV) is one of the most important causes of upper and lower respiratory tract infections in infants and young children, for which no effective treatment is currently available. Although the mechanisms of RSV-induced airway disease remain incompletely defined, the lung inflammatory response is thought to play a central pathogenetic role. In the past few years, we and others have provided increasing evidence of a role of reactive oxygen species (ROS) as important regulators of RSV-induced cellular signaling leading to the expression of key proinflammatory mediators, such as cytokines and chemokines. In addition, RSV-induced oxidative stress, which results from an imbalance between ROS production and airway antioxidant defenses, due to a widespread inhibition of antioxidant enzyme expression, is likely to play a fundamental role in the pathogenesis of RSV-associated lung inflammatory disease, as demonstrated by a significant increase in markers of oxidative injury, which correlate with the severity of clinical illness, in children with RSV infection. Modulation of ROS production and oxidative stress therefore represents a potential novel pharmacological approach to ameliorate RSV-induced lung inflammation and its long-term consequences.
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Affiliation(s)
- Roberto P Garofalo
- Department of Pediatrics, University of Texas Medical Branch at Galveston, Galveston, TX 77555, USA
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Hosakote YM, Komaravelli N, Mautemps N, Liu T, Garofalo RP, Casola A. Antioxidant mimetics modulate oxidative stress and cellular signaling in airway epithelial cells infected with respiratory syncytial virus. Am J Physiol Lung Cell Mol Physiol 2012; 303:L991-1000. [PMID: 23023968 DOI: 10.1152/ajplung.00192.2012] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Respiratory syncytial virus (RSV) is one of the most common causes of bronchiolitis and pneumonia among infants and young children worldwide. In previous investigations, we have shown that RSV infection induces rapid generation of reactive oxygen species (ROS), which modulate viral-induced cellular signaling, and downregulation of antioxidant enzyme (AOE) expression, resulting in oxidative stress in vitro and in vivo, which plays a pathogenetic role in RSV-induced lung disease. In this study, we determined whether pharmacological intervention with synthetic catalytic scavengers could reduce RSV-induced proinflammatory gene expression and oxidative cell damage in an in vitro model of infection. Treatment of airway epithelial cells (AECs) with the salen-manganese complexes EUK-8 or EUK-189, which possess superoxide dismutase, catalase, and glutathione peroxidase activity, strongly reduced RSV-induced ROS formation by increasing cellular AOE enzymatic activity and levels of the lipid peroxidation products F(2)-8-isoprostane and malondialdehyde, which are markers of oxidative stress. Treatment of AECs with AOE mimetics also significantly inhibited RSV-induced cytokine and chemokine secretion and activation of the transcription factors nuclear factor-κB and interferon regulatory factor-3, which orchestrate proinflammatory gene expression. Both EUKs were able to reduce viral replication, when used at high doses. These results suggest that increasing antioxidant cellular capacities can significantly impact RSV-associated oxidative cell damage and cellular signaling and could represent a novel therapeutic approach in modulating virus-induced lung disease.
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Affiliation(s)
- Yashoda M Hosakote
- Department of Pediatrics, University of Texas Medical Branch, Galveston, TX 77555, USA
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Zerin T, Kim YS, Hong SY, Song HY. Quercetin reduces oxidative damage induced by paraquat via modulating expression of antioxidant genes in A549 cells. J Appl Toxicol 2012; 33:1460-7. [DOI: 10.1002/jat.2812] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Revised: 07/16/2012] [Accepted: 07/16/2012] [Indexed: 11/12/2022]
Affiliation(s)
- Tamanna Zerin
- Department of Microbiology, School of Medicine; Soonchunhyang University; Cheonan Chungnam 330-090 South Korea
| | - Yong-Sik Kim
- Department of Microbiology, School of Medicine; Soonchunhyang University; Cheonan Chungnam 330-090 South Korea
| | - Sae-Yong Hong
- Department of Internal Medicine; Soonchunhyang University Hospital; Cheonan Korea
| | - Ho-Yeon Song
- Department of Microbiology, School of Medicine; Soonchunhyang University; Cheonan Chungnam 330-090 South Korea
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Bentley AR, Kritchevsky SB, Harris TB, Holvoet P, Jensen RL, Newman AB, Lee JS, Yende S, Bauer D, Cassano PA. Dietary antioxidants and forced expiratory volume in 1 s decline: the Health, Aging and Body Composition study. Eur Respir J 2011; 39:979-84. [PMID: 22005919 DOI: 10.1183/09031936.00190010] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Increased antioxidant defences are hypothesised to decrease age- and smoking-related decline in lung function. The relationship between dietary antioxidants, smoking and forced expiratory volume in 1 s (FEV(1)) was investigated in community-dwelling older adults in the Health, Aging and Body Composition study. 1,443 participants completed a food frequency questionnaire, self-reported smoking history and had measurements taken of FEV(1) at both baseline and after 4 yrs of follow-up. The association of dietary intake of nutrients and foods with antioxidant properties and rate of FEV(1) decline was investigated using hierarchical linear regression models. In continuing smokers (current smokers at both time-points), higher vitamin C intake and higher intake of fruit and vegetables were associated with an 18 and 24 mL · yr(-1) slower rate of FEV(1) decline compared with a lower intake (p < 0.0001 and p = 0.003, respectively). In quitters (a current smoker at study baseline who had quit during follow-up), higher intake was associated with an attenuated rate of decline for each nutrient studied (p ≤ 0.003 for all models). In nonsmoking participants, there was little or no association of diet and rate of decline in FEV(1). The intake of nutrients with antioxidant properties may modulate lung function decline in older adults exposed to cigarette smoke.
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Affiliation(s)
- A R Bentley
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
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Rottner M, Tual-Chalot S, Mostefai HA, Andriantsitohaina R, Freyssinet JM, Martínez MC. Increased oxidative stress induces apoptosis in human cystic fibrosis cells. PLoS One 2011; 6:e24880. [PMID: 21931865 PMCID: PMC3171475 DOI: 10.1371/journal.pone.0024880] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2011] [Accepted: 08/22/2011] [Indexed: 12/05/2022] Open
Abstract
Oxidative stress results in deleterious cell function in pathologies associated with inflammation. Here, we investigated the generation of superoxide anion as well as the anti-oxidant defense systems related to the isoforms of superoxide dismutases (SOD) in cystic fibrosis (CF) cells. Pro-apoptotic agents induced apoptosis in CF but not in control cells that was reduced by treatment with SOD mimetic. These effects were associated with increased superoxide anion production, sensitive to the inhibition of IκB-α phosphorylation, in pancreatic but not tracheal CF cells, and reduced upon inhibition of either mitochondrial complex I or NADPH oxidase. CF cells exhibited reduced expression, but not activity, of both Mn-SOD and Cu/Zn-SOD when compared to control cells. Although, expression of EC-SOD was similar in normal and CF cells, its activity was reduced in CF cells. We provide evidence that high levels of oxidative stress are associated with increased apoptosis in CFTR-mutated cells, the sources being different depending on the cell type. These observations underscore a reduced anti-oxidant defense mechanism, at least in part, via diminished EC-SOD activity and regulation of Cu/Zn-SOD and Mn-SOD expressions. These data point to new therapeutic possibilities in targeting anti-oxidant pathways to reduce oxidative stress and apoptosis in CF cells.
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Affiliation(s)
- Mathilde Rottner
- INSERM, U770, Le Kremlin-Bicêtre, France
- Université de Strasbourg, Faculté de Médecine, Strasbourg, France
| | | | | | | | - Jean-Marie Freyssinet
- INSERM, U770, Le Kremlin-Bicêtre, France
- Université de Strasbourg, Faculté de Médecine, Strasbourg, France
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