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Zhang T, Huang H, Liang L, Lu H, Liang D. Long non-coding RNA (LncRNA) non-coding RNA activated by DNA damage (NORAD) knockdown alleviates airway remodeling in asthma via regulating miR-410-3p/RCC2 and inhibiting Wnt/β-catenin pathway. Heliyon 2024; 10:e23860. [PMID: 38261955 PMCID: PMC10796956 DOI: 10.1016/j.heliyon.2023.e23860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 12/14/2023] [Accepted: 12/14/2023] [Indexed: 01/25/2024] Open
Abstract
Background Asthma is a chronic inflammatory disorder with high prevalence in childhood. Airway remodeling, an important structural change of the airways, is resulted from epithelial-mesenchymal transition. Long non-coding RNA non-coding RNA activated by DNA damage (NORAD) has been found to promote epithelial-mesenchymal transition in multiple cancers. This study aimed to analyze the role of NORAD in asthma, mainly focusing on epithelial-mesenchymal transition-mediated airway remodeling, and further explored the NORAD-miRNA-mRNA network. Methods NORAD expression was analyzed in transforming growth factor-β1-induced BEAS-2B human bronchial epithelial cells and ovalbumin-challenged asthmatic mice. The influences of NORAD on the epithelial-mesenchymal transition characteristics and Wnt/β-catenin pathway activation were analyzed in vitro. The interactions between NORAD and miR-410-3p as well as miR-410-3p and regulator of chromosome condensation 2 were detected by dual-luciferase reporter assay and RNA pull-down assay. Rescue experiments using miR-410-3p antagonist and chromosome condensation 2 overexpression were used to confirm the mechanism of NORAD. Additionally, the role and mechanism of NORAD were further evaluated in asthmatic mice. Results NORAD expression was elevated in both asthmatic models. Knockdown of NORAD impeded spindle-like morphology changes, elevated E-cadherin expression, decreased N-cadherin expression, suppressed cell migration, and inactivated the Wnt/β-catenin pathway in transforming growth factor-β1-stimulated BEAS-2B cells. NORAD acted as a sponge of miR-410-3p to regulate chromosome condensation 2 expression. Rescue assays demonstrated that silencing of NORAD ameliorated transforming growth factor-β1-induced EMT via miR-410-3p/chromosome condensation 2/Wnt/β-catenin axis. In vivo, knockdown of NORAD led to the reduction of inflammatory cell infiltration and collagen deposition, suppression of IL-4, IL-13, transforming growth factor-β1 and immunoglobulin E production, decreasing of N-cadherin, chromosome condensation 2, β-catenin and c-Myc expression, but increasing of E-cadherin and miR-410-3p expression. Conclusions Silencing of NORAD alleviated epithelial-mesenchymal transition-mediated airway remodeling in asthma via mediating miR-410-3p/chromosome condensation 2/Wnt/β-catenin pathway.
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Affiliation(s)
- Ting Zhang
- Department of Respiratory, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450000, China
| | - Han Huang
- Department of Respiratory, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450000, China
| | - Lihong Liang
- Department of Respiratory, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450000, China
| | - Hongxia Lu
- Department of Respiratory, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450000, China
| | - Dongge Liang
- Department of Respiratory, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450000, China
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Raby KL, Michaeloudes C, Tonkin J, Chung KF, Bhavsar PK. Mechanisms of airway epithelial injury and abnormal repair in asthma and COPD. Front Immunol 2023; 14:1201658. [PMID: 37520564 PMCID: PMC10374037 DOI: 10.3389/fimmu.2023.1201658] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 06/19/2023] [Indexed: 08/01/2023] Open
Abstract
The airway epithelium comprises of different cell types and acts as a physical barrier preventing pathogens, including inhaled particles and microbes, from entering the lungs. Goblet cells and submucosal glands produce mucus that traps pathogens, which are expelled from the respiratory tract by ciliated cells. Basal cells act as progenitor cells, differentiating into different epithelial cell types, to maintain homeostasis following injury. Adherens and tight junctions between cells maintain the epithelial barrier function and regulate the movement of molecules across it. In this review we discuss how abnormal epithelial structure and function, caused by chronic injury and abnormal repair, drives airway disease and specifically asthma and chronic obstructive pulmonary disease (COPD). In both diseases, inhaled allergens, pollutants and microbes disrupt junctional complexes and promote cell death, impairing the barrier function and leading to increased penetration of pathogens and a constant airway immune response. In asthma, the inflammatory response precipitates the epithelial injury and drives abnormal basal cell differentiation. This leads to reduced ciliated cells, goblet cell hyperplasia and increased epithelial mesenchymal transition, which contribute to impaired mucociliary clearance and airway remodelling. In COPD, chronic oxidative stress and inflammation trigger premature epithelial cell senescence, which contributes to loss of epithelial integrity and airway inflammation and remodelling. Increased numbers of basal cells showing deregulated differentiation, contributes to ciliary dysfunction and mucous hyperproduction in COPD airways. Defective antioxidant, antiviral and damage repair mechanisms, possibly due to genetic or epigenetic factors, may confer susceptibility to airway epithelial dysfunction in these diseases. The current evidence suggests that a constant cycle of injury and abnormal repair of the epithelium drives chronic airway inflammation and remodelling in asthma and COPD. Mechanistic understanding of injury susceptibility and damage response may lead to improved therapies for these diseases.
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Affiliation(s)
- Katie Louise Raby
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | | | - James Tonkin
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
- Department of Respiratory Medicine, Royal Brompton and Harefield Hospital, London, United Kingdom
| | - Kian Fan Chung
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
- Department of Respiratory Medicine, Royal Brompton and Harefield Hospital, London, United Kingdom
| | - Pankaj Kumar Bhavsar
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
- Department of Respiratory Medicine, Royal Brompton and Harefield Hospital, London, United Kingdom
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3
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Zhang M, Jiang H, Wu L, Lu H, Bera H, Zhao X, Guo X, Liu X, Cun D, Yang M. Airway epithelial cell-specific delivery of lipid nanoparticles loading siRNA for asthma treatment. J Control Release 2022; 352:422-437. [PMID: 36265740 DOI: 10.1016/j.jconrel.2022.10.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/10/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022]
Abstract
With specific and inherent mRNA cleaving activity, small interfering RNA (siRNA) has been deemed promising therapeutics to reduce the exacerbation rate of asthma by inhibiting the expression and release of proinflammatory cytokines from airway epithelial cells (AECs). To exert the therapeutic effects of siRNA drugs, nano-formulations with high efficiency and safety are required to deliver these nucleic acids to the target cells. Herein, we exploited novel inhaled lipid nanoparticles (LNPs) targeting intercellular adhesion molecule-1 (ICAM-1) receptors on the apical side of AECs. This delivery system is meant to enhance the specific delivery efficiency of siRNA in AECs to prevent the expression of proinflammatory cytokines in AECs and the concomitant symptoms in parallel. A cyclic peptide that resembles part of the capsid protein of rhinovirus and binds to ICAM-1 receptors was initially conjugated with cholesterol and subsequently assembled with ionizable cationic lipids to form the LNPs (Pep-LNPs) loaded with siRNA against thymic stromal lymphopoietin (TSLP siRNA). The obtained Pep-LNPs were subjected to thorough characterization and evaluations in vitro and in vivo. Pep-LNPs significantly enhanced cellular uptake and gene silencing efficiency in human epithelial cells expressing ICAM-1 in vitro, exhibited AEC-specific delivery and improved the gene silencing effect in ovalbumin-challenged asthmatic mice after pulmonary administration. More importantly, Pep-LNPs remarkably downregulated the expression of TSLP in AECs, effectively alleviated inflammatory cell infiltration, and reduced the secretion of other proinflammatory cytokines, including IL-4 and IL-13, as well as mucus production in asthmatic mice. This study demonstrates that Pep-LNPs are safe and efficient to deliver siRNA drugs to asthmatic AECs and could potentially alleviate allergic asthma by inhibiting the overexpression of proinflammatory cytokines in the airway.
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Affiliation(s)
- Mengjun Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road, No. 103, 110016 Shenyang, China
| | - Huiyang Jiang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road, No. 103, 110016 Shenyang, China
| | - Lan Wu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road, No. 103, 110016 Shenyang, China
| | - Haoyu Lu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road, No. 103, 110016 Shenyang, China
| | - Hriday Bera
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road, No. 103, 110016 Shenyang, China; Dr. B.C. Roy College of Pharmacy & Allied Health Sciences, Durgapur, West Bengal, 713212, India
| | - Xing Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road, No. 103, 110016 Shenyang, China
| | - Xiong Guo
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road, No. 103, 110016 Shenyang, China
| | - Xulu Liu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road, No. 103, 110016 Shenyang, China
| | - Dongmei Cun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road, No. 103, 110016 Shenyang, China.
| | - Mingshi Yang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road, No. 103, 110016 Shenyang, China; Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark.
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Abstract
Granulocyte macrophage-colony stimulating factor (GM-CSF) was originally identified as a growth factor for its ability to promote the proliferation and differentiation in vitro of bone marrow progenitor cells into granulocytes and macrophages. Many preclinical studies, using GM-CSF deletion or depletion approaches, have demonstrated that GM-CSF has a wide range of biological functions, including the mediation of inflammation and pain, indicating that it can be a potential target in many inflammatory and autoimmune conditions. This review provides a brief overview of GM-CSF biology and signaling, and summarizes the findings from preclinical models of a range of inflammatory and autoimmune disorders and the latest clinical trials targeting GM-CSF or its receptor in these disorders.
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Affiliation(s)
- Adrian A Achuthan
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050, Australia.
| | - Kevin M C Lee
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050, Australia
| | - John A Hamilton
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050, Australia; Australian Institute for Musculoskeletal Science, St Albans, Victoria 3021, Australia
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Cremades-Jimeno L, de Pedro MÁ, López-Ramos M, Sastre J, Mínguez P, Fernández IM, Baos S, Cárdaba B. Prioritizing Molecular Biomarkers in Asthma and Respiratory Allergy Using Systems Biology. Front Immunol 2021; 12:640791. [PMID: 33936056 PMCID: PMC8081895 DOI: 10.3389/fimmu.2021.640791] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 03/15/2021] [Indexed: 01/29/2023] Open
Abstract
Highly prevalent respiratory diseases such as asthma and allergy remain a pressing health challenge. Currently, there is an unmet need for precise diagnostic tools capable of predicting the great heterogeneity of these illnesses. In a previous study of 94 asthma/respiratory allergy biomarker candidates, we defined a group of potential biomarkers to distinguish clinical phenotypes (i.e. nonallergic asthma, allergic asthma, respiratory allergy without asthma) and disease severity. Here, we analyze our experimental results using complex algorithmic approaches that establish holistic disease models (systems biology), combining these insights with information available in specialized databases developed worldwide. With this approach, we aim to prioritize the most relevant biomarkers according to their specificity and mechanistic implication with molecular motifs of the diseases. The Therapeutic Performance Mapping System (Anaxomics’ TPMS technology) was used to generate one mathematical model per disease: allergic asthma (AA), non-allergic asthma (NA), and respiratory allergy (RA), defining specific molecular motifs for each. The relationship of our molecular biomarker candidates and each disease was analyzed by artificial neural networks (ANNs) scores. These analyses prioritized molecular biomarkers specific to the diseases and to particular molecular motifs. As a first step, molecular characterization of the pathophysiological processes of AA defined 16 molecular motifs: 2 specific for AA, 2 shared with RA, and 12 shared with NA. Mechanistic analysis showed 17 proteins that were strongly related to AA. Eleven proteins were associated with RA and 16 proteins with NA. Specificity analysis showed that 12 proteins were specific to AA, 7 were specific to RA, and 2 to NA. Finally, a triggering analysis revealed a relevant role for AKT1, STAT1, and MAPK13 in all three conditions and for TLR4 in asthmatic diseases (AA and NA). In conclusion, this study has enabled us to prioritize biomarkers depending on the functionality associated with each disease and with specific molecular motifs, which could improve the definition and usefulness of new molecular biomarkers.
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Affiliation(s)
- Lucía Cremades-Jimeno
- Immunology Department, IIS-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - María Ángeles de Pedro
- Immunology Department, IIS-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - María López-Ramos
- Immunology Department, IIS-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Joaquín Sastre
- Allergy Department, Fundación Jiménez Díaz, Madrid, Spain.,Center for Biomedical Network of Respiratory Diseases (CIBERES), ISCIII, Madrid, Spain
| | - Pablo Mínguez
- Department of Genetics, IIS-Fundación Jiménez Díaz, UAM, Madrid, Spain.,Center for Biomedical Network Research on Rare Diseases (CIBERER), ISCIII, Madrid, Spain
| | | | - Selene Baos
- Immunology Department, IIS-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Blanca Cárdaba
- Immunology Department, IIS-Fundación Jiménez Díaz, Universidad Autónoma de Madrid (UAM), Madrid, Spain.,Center for Biomedical Network of Respiratory Diseases (CIBERES), ISCIII, Madrid, Spain
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6
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Lee KMC, Achuthan AA, Hamilton JA. GM-CSF: A Promising Target in Inflammation and Autoimmunity. Immunotargets Ther 2020; 9:225-240. [PMID: 33150139 PMCID: PMC7605919 DOI: 10.2147/itt.s262566] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 10/15/2020] [Indexed: 12/14/2022] Open
Abstract
The cytokine, granulocyte macrophage-colony stimulating factor (GM-CSF), was firstly identified as being able to induce in vitro the proliferation and differentiation of bone marrow progenitors into granulocytes and macrophages. Much preclinical data have indicated that GM-CSF has a wide range of functions across different tissues in its action on myeloid cells, and GM-CSF deletion/depletion approaches indicate its potential as an important therapeutic target in several inflammatory and autoimmune disorders, for example, rheumatoid arthritis. In this review, we discuss briefly the biology of GM-CSF, raise some current issues and questions pertaining to this biology, summarize the results from preclinical models of a range of inflammatory and autoimmune disorders and list the latest clinical trials evaluating GM-CSF blockade in such disorders.
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Affiliation(s)
- Kevin M C Lee
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Melbourne, VIC, 3050, Australia
| | - Adrian A Achuthan
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Melbourne, VIC, 3050, Australia
| | - John A Hamilton
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Melbourne, VIC, 3050, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), The University of Melbourne and Western Health, Melbourne, VIC, Australia
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7
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TSLP as druggable target - a silver-lining for atopic diseases? Pharmacol Ther 2020; 217:107648. [PMID: 32758645 DOI: 10.1016/j.pharmthera.2020.107648] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 07/27/2020] [Indexed: 02/07/2023]
Abstract
Atopic diseases refer to common allergic inflammatory diseases such as atopic dermatitis (AD), allergic rhinitis (AR), and allergic asthma (AA). AD often develops in early childhood and may herald the onset of other allergic disorders such as food allergy (FA), AR, and AA. This progression of the disease is also known as the atopic march, and it goes hand in hand with a significantly impaired quality of life as well as a significant economic burden. Atopic diseases usually are considered as T helper type 2 (Th2) cell-mediated inflammatory diseases. Thymic stromal lymphopoietin (TSLP), an epithelium-derived pro-inflammatory cytokine, activates distinct immune and non-immune cells. It has been shown to be a master regulator of type 2 immune responses and atopic diseases. In experimental settings, the inhibition or knockout of TSLP signaling has shown great therapeutic potential. This, in conjunction with the increasing knowledge about the central role of TSLP in the pathogenesis of atopic diseases, has sparked an interest in TSLP as a druggable target. In this review, we will discuss the autocrine and paracrine effects of TSLP, how it regulates the tissue microenvironment and drives atopic diseases, which provide the rationale for the increasing interest in TSLP as a druggable target.
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8
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Berghi NO, Dumitru M, Vrinceanu D, Ciuluvica RC, Simioniuc-Petrescu A, Caragheorgheopol R, Tucureanu C, Cornateanu RS, Giurcaneanu C. Relationship between chemokines and T lymphocytes in the context of respiratory allergies (Review). Exp Ther Med 2020; 20:2352-2360. [PMID: 32765714 PMCID: PMC7401840 DOI: 10.3892/etm.2020.8961] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 06/22/2020] [Indexed: 12/12/2022] Open
Abstract
Allergic diseases have been classified in the last decades using various theories. The main classes of the newest classification in allergic respiratory diseases focus on the characterization of the endotype (which takes into account biomarkers related to determinant pathophysiological mechanisms) and of the phenotype (based on the description of the disease). Th2, Th1 and Th17 lymphocytes and the type of inflammatory response mediated by them represent the basis for Th2 and non-Th2 endotype classification. In addition, new lymphocytes were also used to characterize allergic diseases: Th9 lymphocytes, Th22 lymphocytes, T follicular helper cells (TFH) lymphocytes and invariant natural killer T (iNKT) lymphocytes. In the last decade, a growing body of evidence focused on chemokines, chemoattractant cytokines, which seems to have an important contribution to the pathogenesis of this pathology. This review presents the interactions between chemokines and Th lymphocytes in the context of Th2/non-Th2 endotype classification of respiratory allergies.
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Affiliation(s)
- Nicolae Ovidiu Berghi
- Department of Oncologic Dermatology, 'Elias' Emergency University Hospital, 'Carol Davila' University of Medicine and Pharmacy, 011461 Bucharest, Romania
| | - Mihai Dumitru
- Anatomy Department, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Daniela Vrinceanu
- ENT Department, 'Carol Davila' University of Medicine and Pharmacy, 010271 Bucharest, Romania
| | | | - Anca Simioniuc-Petrescu
- ENT Department, 'Carol Davila' University of Medicine and Pharmacy, 010271 Bucharest, Romania
| | - Ramona Caragheorgheopol
- Immunology Laboratory, 'Cantacuzino' National Military-Medical Institute for Research and Development, 050096 Bucharest, Romania
| | - Catalin Tucureanu
- Immunology Laboratory, 'Cantacuzino' National Military-Medical Institute for Research and Development, 050096 Bucharest, Romania
| | - Roxana Sfrent Cornateanu
- Department of Physiopathology and Immunology, 'Carol Davila' University of Medicine and Pharmacy, 041914 Bucharest, Romania
| | - Calin Giurcaneanu
- Department of Oncologic Dermatology, 'Elias' Emergency University Hospital, 'Carol Davila' University of Medicine and Pharmacy, 011461 Bucharest, Romania
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9
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Paplinska-Goryca M, Misiukiewicz-Stepien P, Nejman-Gryz P, Proboszcz M, Mlacki M, Gorska K, Krenke R. Epithelial-macrophage-dendritic cell interactions impact alarmins expression in asthma and COPD. Clin Immunol 2020; 215:108421. [PMID: 32302698 DOI: 10.1016/j.clim.2020.108421] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 04/05/2020] [Accepted: 04/11/2020] [Indexed: 11/30/2022]
Abstract
In the respiratory system macrophages and dendritic cells collaborate as sentinels against foreign particulate antigens. The study used a triple-cell co-culture model, utilizing nasal epithelial cells, along with: monocyte derived macrophages (moMφs), and monocyte derived DCs (moDCs). Cell cultures from 15 controls, 14 asthma and 11 COPD patients were stimulated with IL-13 and poly I:C for 24 h. Co-cultivation of epithelial cells with moMφs and moDCs increased TSLP level only in asthma and the effect of IL-13 and poly I:C stimulation differed in all groups. Asthma epithelial cells expressed higher level of receptors TSLPR, ST2 and IL-17RA than controls and increased number of ST2 + ciliated and IL17RA + secretory cells. Cytokine expression in respiratory epithelium may be influenced by structural and immunological cell interaction. TSLP pathway may be associated with secretory, while IL-33 with ciliated cells. The impaired function of respiratory epithelium may impact cell-to-cell interactions in asthma.
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Affiliation(s)
| | | | - Patrycja Nejman-Gryz
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Poland
| | - Małgorzata Proboszcz
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Poland
| | | | - Katarzyna Gorska
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Poland
| | - Rafal Krenke
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Poland
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10
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Elkoshi Z. The Binary Classification Of Chronic Diseases. J Inflamm Res 2019; 12:319-333. [PMID: 31908517 PMCID: PMC6927256 DOI: 10.2147/jir.s227279] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 11/07/2019] [Indexed: 12/19/2022] Open
Abstract
Acute diseases start with an insult and end when insult disappears. If the trauma induces an immune reaction (which happens in most cases), this reaction must be terminated with some type of resolution mechanism, when the cause of the trauma ceases. Chronicity develops if insult is permanent or if the resolution mechanism is defective. Another way to reach disease chronicity is a positive feedback loop, whereby the immune reaction activates an internal, insult-like reaction. A distinction between chronic states characterized by a persistent, low suppressive effect and those characterized by a persistent, high suppressive effect of regulatory T cells (Treg), is proposed. This two-class division represents two ways to reach chronicity: (a) by maintaining inflammatory reaction long after insult disappears ("low Treg"), or (b) by suppressing inflammatory reaction prior to the disappearance of insult ("high Treg"). This two-class division may explain the strong association between certain pathogens and cancer, on one hand, and between several other pathogens and autoimmunity, on the other hand. The weak association between autoimmune diseases and HIV infection and the relatively weak association between autoimmune diseases and cancer may be elucidated as well. In addition, the model rationalizes why immune-modulating drugs, which are effective in cancer, are also effective in "high Treg" viral infections, while corticosteroids, which are generally effective in autoimmune diseases, are also effective in other "low Treg" diseases (such as asthma, atopic dermatitis, and "low Treg" infections) but are not effective in solid malignancies and "high Treg" infections. Moreover, the model expounds why certain bacteria inhibit tumor growth and why these very bacteria induce autoimmune diseases.
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Affiliation(s)
- Zeev Elkoshi
- Taro Pharmaceutical Industries, Haifa Bay, Israel
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11
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Liu C, Zhang X, Xiang Y, Qu X, Liu H, Liu C, Tan M, Jiang J, Qin X. Role of epithelial chemokines in the pathogenesis of airway inflammation in asthma (Review). Mol Med Rep 2018; 17:6935-6941. [PMID: 29568899 DOI: 10.3892/mmr.2018.8739] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 02/23/2018] [Indexed: 11/06/2022] Open
Abstract
As the first barrier to the outside environment, airway epithelial cells serve a central role in the initiation and development of airway inflammation. Chemokines are the most direct and immediate cell factors for the recruitment and migration of inflammatory cells. The present review focused on the role of epithelial chemokines in the pathogenesis of airway inflammation in asthma. In addition to traditional CC family chemokines and CXC family chemokines, airway epithelial cells also express other chemokines, including thymic stromal lymphopoietin and interleukin‑33. By expressing and secreting chemokines, airway epithelial cells serve a key role in orchestrating airway inflammation in asthma.
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Affiliation(s)
- Chi Liu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410008, P.R. China
| | - Xun Zhang
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410008, P.R. China
| | - Yang Xiang
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410008, P.R. China
| | - Xiangping Qu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410008, P.R. China
| | - Huijun Liu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410008, P.R. China
| | - Caixia Liu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410008, P.R. China
| | - Meiling Tan
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410008, P.R. China
| | - Jianxin Jiang
- State Key Laboratory of Trauma, Institute of Surgery Research, Third Military Medical University, Chongqing 400042, P.R. China
| | - Xiaoqun Qin
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410008, P.R. China
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12
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Liu C, Yuan L, Zou Y, Yang M, Chen Y, Qu X, Liu H, Jiang J, Xiang Y, Qin X. ITGB4 is essential for containing HDM-induced airway inflammation and airway hyperresponsiveness. J Leukoc Biol 2018; 103:897-908. [PMID: 29393977 DOI: 10.1002/jlb.3a1017-411rr] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 12/19/2017] [Accepted: 12/20/2017] [Indexed: 12/17/2022] Open
Abstract
Airway epithelial cells play a significant role in the pathogenesis of asthma. Although the structural and functional defects of airway epithelial cells have been postulated to increase asthma susceptibility and exacerbate asthma severity, the mechanism and implication of these defects remain uncertain. Integrin β4 (ITGB4) is a structural adhesion molecule that is downregulated in the airway epithelium of asthma patients. In this study, we demonstrated that ITGB4 deficiency leads to severe allergy-induced airway inflammation and airway hyper-responsiveness (AHR) in mice. After house dust mite (HDM) challenge, epithelial cell-specific ITGB4-deleted mice showed increased lymphocyte, eosinophil, and neutrophil infiltration into lung compared with that of the wild-type mice. ITGB4 deficiency also resulted in increased expression of the Th2 cytokine IL-4, IL-13, and the Th17 cytokine IL-17A in the lung tissue and in the T cells after HDM challenge. The aggravated inflammation in ITGB4 defect mice was partly caused by enhanced disrupted epithelial barrier integrity after HDM stress, which induced the increased thymic stromal lymphopoietin secretion from airway epithelial cells. This study therefore demonstrates that ITGB4 plays a pivotal role in containing allergen-mediated lung inflammation and airway hyper-responsiveness in allergic asthma.
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Affiliation(s)
- Chi Liu
- Departments of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Lin Yuan
- Departments of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yizhou Zou
- Department of Immunology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Ming Yang
- Centre for Asthma and Respiratory Disease, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle and Hunter Medical Research Institute, Callaghan, New South Wales, Australia
| | - Yu Chen
- Department of Examination, Medical College of Hunan Normal University, Changsha, Hunan, China
| | - Xiangping Qu
- Departments of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Huijun Liu
- Departments of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Jianxin Jiang
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Surgery Research, Third Military Medical University, Chongqing, China
| | - Yang Xiang
- Departments of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Xiaoqun Qin
- Departments of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
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Qiu YY, Zhang YW, Qian XF, Bian T. miR-371, miR-138, miR-544, miR-145, and miR-214 could modulate Th1/Th2 balance in asthma through the combinatorial regulation of Runx3. Am J Transl Res 2017; 9:3184-3199. [PMID: 28804539 PMCID: PMC5553871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 07/06/2017] [Indexed: 06/07/2023]
Abstract
Asthma is tightly related to the imbalance of Th1/Th2 cells, and Runx3 plays a pivotal role in the differentiation of T helper cells. The present study aimed to investigate dysregulated microRNAs that may target Runx3 in CD4+ T cells from asthmatic patients and reveal Runx3 function in Th1/Th2 balance regulation. We detected the levels of Th1- and Th2-related cytokines by ELISA and analyzed the differentiation marker gene of T helper cells by qRT-PCR. Results indicated that an imbalance of Th1/Th2 cells was present in our asthmatic subject. Runx3 expression was reduced in the CD4+ T cells from asthmatic patients. Overexpression of Runx3 could restore the Th1/Th2 balance. After performing microRNA microarray assay, we found a series of microRNAs that were considerably altered in the CD4+ T cells from asthmatic patients. Among these upregulated microRNAs, eight microRNAs that may target Runx3 were selected by bioinformatics prediction. Five microRNAs, namely miR-371, miR-138, miR-544, miR-145, and miR-214, were confirmed by qRT-PCR and selected as candidate microRNAs. Luciferase reporter assay showed that these five microRNAs could directly target the 3'-UTR of Runx3. However, only simultaneous inhibition of these five microRNAs could alter the expression of Runx3. Most importantly, only simultaneous inhibition could improve the Th1/Th2 balance. Thus, we suggest that miR-371, miR-138, miR-544, miR-145, and miR-214 can modulate the Th1/Th2 balance in asthma by regulating Runx3 in a combinatorial manner.
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Affiliation(s)
- Yu-Ying Qiu
- Department of Respiratory Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNo. 321 Zhongshan Road, Nanjing 210008, Jiangsu, China
| | - Ying-Wei Zhang
- Department of Respiratory Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNo. 321 Zhongshan Road, Nanjing 210008, Jiangsu, China
| | - Xiu-Fen Qian
- Department of Respiratory Medicine, Wuxi People’s Hospital Affiliated to Nanjing Medical UniversityNo. 299 Qingyang Road, Wuxi 214023, Jiangsu, China
| | - Tao Bian
- Department of Respiratory Medicine, Wuxi People’s Hospital Affiliated to Nanjing Medical UniversityNo. 299 Qingyang Road, Wuxi 214023, Jiangsu, China
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