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Xiao B, Li L, Yao D, Mo B. Noncoding RNAs in asthmatic airway smooth muscle cells. Eur Respir Rev 2023; 32:32/168/220184. [PMID: 37076176 PMCID: PMC10113956 DOI: 10.1183/16000617.0184-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 02/07/2023] [Indexed: 04/21/2023] Open
Abstract
Asthma is a complex and heterogeneous airway disease caused by genetic, environmental and epigenetic factors treated with hormones and biologics. Irreversible pathological changes to airway smooth muscle cells (ASMCs) such as hyperplasia and hypertrophy can occur in asthmatic patients. Determining the mechanisms responsible is vital for preventing such changes. In recent years, noncoding RNAs (ncRNAs), especially microRNAs, long noncoding RNAs and circular RNAs, have been found to be associated with abnormalities of the ASMCs. This review highlights recent ncRNA research into ASMC pathologies. We present a schematic that illustrates the role of ncRNAs in pathophysiological changes to ASMCs that may be useful in future research in diagnostic and treatment strategies for patients with asthma.
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Affiliation(s)
- Bo Xiao
- Laboratory of Respiratory Disease, Affiliated Hospital of Guilin Medical University, Guilin, China
- Key Laboratory of Respiratory Diseases, Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
- These authors contributed equally to this work
| | - Liangxian Li
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, China
- These authors contributed equally to this work
| | - Dong Yao
- Key Laboratory of Respiratory Diseases, Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
- These authors contributed equally to this work
| | - Biwen Mo
- Key Laboratory of Respiratory Diseases, Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
- Key Laboratory of Glucose and Lipid Metabolism Disorders, Guangxi Health Commission, Guilin, China
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2
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The Role of Noncoding RNA in Airway Allergic Diseases through Regulation of T Cell Subsets. Mediators Inflamm 2022; 2022:6125698. [PMID: 36248190 PMCID: PMC9553461 DOI: 10.1155/2022/6125698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/31/2022] [Accepted: 09/23/2022] [Indexed: 11/18/2022] Open
Abstract
Allergic rhinitis and asthma are common airway allergic diseases, the incidence of which has increased annually in recent years. The human body is frequently exposed to allergens and environmental irritants that trigger immune and inflammatory responses, resulting in altered gene expression. Mounting evidence suggested that epigenetic alterations were strongly associated with the progression and severity of allergic diseases. Noncoding RNAs (ncRNAs) are a class of transcribed RNA molecules that cannot be translated into polypeptides and consist of three major categories, microRNAs (miRNAs), long noncoding RNAs (lncRNAs), and circular RNAs (circRNAs). Previous studies showed that ncRNAs were involved in the physiopathological mechanisms of airway allergic diseases and contributed to their occurrence and development. This article reviews the current state of understanding of the role of noncoding RNAs in airway allergic diseases, highlights the limitations of recent studies, and outlines the prospects for further research to facilitate the clinical translation of noncoding RNAs as therapeutic targets and biomarkers.
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3
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Farmanzadeh A, Qujeq D, Yousefi T. The Interaction Network of MicroRNAs with Cytokines and Signaling Pathways in Allergic Asthma. Microrna 2022; 11:104-117. [PMID: 35507792 DOI: 10.2174/2211536611666220428134324] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 01/15/2022] [Accepted: 03/10/2022] [Indexed: 01/01/2023]
Abstract
Allergic asthma is a complicated disease that is affected by many factors. Numerous cytokines and signaling pathways are attributed to the cause of asthma symptoms. MicroRNAs (miRNAs) are a group of small non-coding single-stranded RNA molecules that are involved in gene silencing and posttranscriptional regulation of gene expression by targeting mRNAs. In pathological conditions, altered expression of microRNAs differentially regulates cytokines and signaling pathways and therefore, can be the underlying reason for the pathogenesis of allergic asthma. Indeed, microRNAs participate in airway inflammation via inducing airway structural cells and activating immune responses by targeting cytokines and signaling pathways. Thus, to make a complete understanding of allergic asthma, it is necessary to investigate the communication network of microRNAs with cytokines and signaling pathways which is contributed to the pathogenesis of allergic asthma. Here, we shed light on this aspect of asthma pathology by Summarizing our current knowledge of this topic.
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Affiliation(s)
- Ali Farmanzadeh
- Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Durdi Qujeq
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Department of Clinical Biochemistry, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Tooba Yousefi
- Department of Clinical Biochemistry, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran
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Kim CY, Kim JW, Kim JH, Jeong JS, Lim JO, Ko JW, Kim TW. Inner Shell of the Chestnut ( Castanea crenatta) Suppresses Inflammatory Responses in Ovalbumin-Induced Allergic Asthma Mouse Model. Nutrients 2022; 14:2067. [PMID: 35631208 PMCID: PMC9147817 DOI: 10.3390/nu14102067] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/11/2022] [Accepted: 05/13/2022] [Indexed: 01/27/2023] Open
Abstract
The inner shell of the chestnut (Castanea crenata) contains various polyphenols, which exert beneficial biological effects. Hence, we assessed the anti-inflammatory efficacy of a chestnut inner shell extract (CIE) in ovalbumin (OVA)-induced allergic asthma. We intraperitoneally injected 20 μg of OVA with 2 mg of aluminum hydroxide on days 0 and 14. On test days 21, 22, and 23, the mice were treated with aerosolized 1% (w/v) OVA in saline. CIE was administered orally at 100 and 300 mg/kg on days 18-23. CIE significantly reduced inflammatory cytokines and cells and immunoglobulin-E increased by OVA. Anti-inflammatory efficacy was revealed by reduction of inflammatory cell migration and mucus secretion in lung tissue. Further, CIE suppressed the OVA-induced nuclear factor kappa B (NF-κB) phosphorylation. Accordingly, the expression of cyclooxygenase (COX-2), inducible nitric oxide synthase (iNOS), and matrix metalloproteinase-9 (MMP-9) were decreased sequentially in lung tissues. CIE alleviated OVA-induced airway inflammation by restraining phosphorylation of NF-κB and the sequentially reduced expression of iNOS, COX-2, leading to reduced MMP-9 expression. These results indicate that CIE has potential as a candidate for alleviating asthma.
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Affiliation(s)
- Chang-Yeop Kim
- BK21 FOUR Program, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Daejeon 34131, Korea; (C.-Y.K.); (J.-W.K.); (J.-H.K.); (J.-S.J.)
| | - Jeong-Won Kim
- BK21 FOUR Program, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Daejeon 34131, Korea; (C.-Y.K.); (J.-W.K.); (J.-H.K.); (J.-S.J.)
| | - Jin-Hwa Kim
- BK21 FOUR Program, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Daejeon 34131, Korea; (C.-Y.K.); (J.-W.K.); (J.-H.K.); (J.-S.J.)
| | - Ji-Soo Jeong
- BK21 FOUR Program, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Daejeon 34131, Korea; (C.-Y.K.); (J.-W.K.); (J.-H.K.); (J.-S.J.)
| | - Je-Oh Lim
- BK21 FOUR Program, College of Veterinary Medicine, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea;
| | - Je-Won Ko
- BK21 FOUR Program, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Daejeon 34131, Korea; (C.-Y.K.); (J.-W.K.); (J.-H.K.); (J.-S.J.)
| | - Tae-Won Kim
- BK21 FOUR Program, College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro, Daejeon 34131, Korea; (C.-Y.K.); (J.-W.K.); (J.-H.K.); (J.-S.J.)
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5
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Mohammed Z, McHale C, Kubinak JL, Dryer S, Gomez G. miR-155 Is a Positive Regulator of FcεRI-Induced Cyclooxygenase-2 Expression and Cytokine Production in Mast Cells. FRONTIERS IN ALLERGY 2022; 3:835776. [PMID: 36211602 PMCID: PMC9543708 DOI: 10.3389/falgy.2022.835776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 03/15/2022] [Indexed: 12/02/2022] Open
Abstract
MicroRNA-155 (miR-155) has been implicated in IgE-dependent allergic disease including asthma and atopic dermatitis. A few roles for miR-155 have been described in mast cells and some specifically related to IgE receptor signaling, but it is not completely understood. Here, we demonstrate by miRNA seq profiling and quantitative RT-PCR that miR-155 expression is significantly increased in human skin-derived mast cells (SMCs) and mouse bone marrow-derived mast cells (BMMCs) following FcεRI crosslinking with antigen. We demonstrate that FcεRI-induced expression of cyclooxygenase-2 (COX-2) was significantly inhibited in miR-155 knockout (KO) BMMCs whereas arachidonate-5-lipoxygenase (ALOX-5) expression and leukotriene C4 (LTC4) biosynthesis, and degranulation were unaffected. FcεRI-induced cytokine production (TNF, IL-6, and IL-13) from miR-155 KO BMMCs was also significantly diminished. Correspondingly, Akt phosphorylation, but not protein expression, was inhibited in the absence of miR-155 whereas p38 and p42/44 were unaffected. Interesting, lipopolysaccharide (LPS)-induced cytokine production was increased in miR-155 KO BMMCs. Together, these data demonstrate that miR-155 specifically targets the FcεRI-induced prostaglandin and cytokine pathways, but not the leukotriene or degranulation pathways, in mast cells. The data further suggest that miR-155 acts indirectly by targeting a repressor of COX-2 expression and a phosphatase that normally blocks Akt phosphorylation. Overall, this study reveals the role of miR-155 as a positive regulator of mast cell function.
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Affiliation(s)
- Zahraa Mohammed
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, United States
| | - Cody McHale
- Molecular Targeted Therapeutics Laboratory, Levine Cancer Institute, Charlotte, NC, United States
| | - Jason L. Kubinak
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, United States
| | - Stuart Dryer
- Department of Biology and Biochemistry, College of Natural Sciences and Mathematics, University of Houston, Houston, TX, United States
| | - Gregorio Gomez
- Department of Biomedical Sciences, College of Medicine, University of Houston, Houston, TX, United States
- *Correspondence: Gregorio Gomez
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6
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Wang JJ, Liu Y, Ding Z, Zhang L, Han C, Yan C, Amador E, Yuan L, Wu Y, Song C, Liu Y, Chen W. The exploration of quantum dot-molecular beacon based MoS 2 fluorescence probing for myeloma-related Mirnas detection. Bioact Mater 2022; 17:360-368. [PMID: 35386454 PMCID: PMC8964961 DOI: 10.1016/j.bioactmat.2021.12.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/23/2021] [Accepted: 12/30/2021] [Indexed: 12/16/2022] Open
Abstract
Highly sensitive and reliable detection of multiple myeloma remains a major challenge in liquid biopsy. Herein, for the first time, quantum dot-molecular beacon (QD-MB) functionalized MoS2 (QD-MB @MoS2) fluorescent probes were designed for the dual detection of multiple myeloma (MM)-related miRNA-155 and miRNA-150. The results indicate that the two probes can effectively detect miRNA-155 and miRNA-150 simultaneously with satisfactory recovery rates, and the limit of detections (LODs) of miRNA-155 and miRNA-150 in human serum are low to 7.19 fM and 5.84 fM, respectively. These results indicate that our method is the most sensitive detection so far reported and that the designed fluorescent probes with signal amplification strategies can achieve highly sensitive detection of MM-related miRNAs for MM diagnosis. Novel quantum dot-molecular beacon functionalized MoS2 (QD-MB@MoS2) fluorescent probes were designed and fabricated. The dual detection of miRNA-155 and miRNA-150 with high sensitivity, low detection limit and high recovery was realized. The fluorescence probes have a great influence on the fluorescence quenching efficiency and the sensitivity. The new MB@MoS2 fluorescent probe and dual detection strategy provide a valuable tool for the detection of miRNA.
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Affiliation(s)
- Jing Jing Wang
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Ying Liu
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Zhou Ding
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Le Zhang
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Caiqin Han
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Changchun Yan
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Eric Amador
- Department of Physics, The University of Texas at Arlington, Arlington, TX, 76019-0059, USA
| | - Liqin Yuan
- Department of General Surgery, The Second Xiangya Hospital, Central South University, ChangSha, Hu'nan, 410011, China
| | - Ying Wu
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Chunyuan Song
- Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Ying Liu
- Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China
| | - Wei Chen
- Department of Physics, The University of Texas at Arlington, Arlington, TX, 76019-0059, USA.,Medical Technology Research Centre, Chelmsford Campus, Anglia Ruskin University, Chelmsford, CM1 1SQ, UK
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7
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Soni DK, Biswas R. Role of Non-Coding RNAs in Post-Transcriptional Regulation of Lung Diseases. Front Genet 2021; 12:767348. [PMID: 34819948 PMCID: PMC8606426 DOI: 10.3389/fgene.2021.767348] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/25/2021] [Indexed: 12/16/2022] Open
Abstract
Non-coding RNAs (ncRNAs), notably microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), have recently gained increasing consideration because of their versatile role as key regulators of gene expression. They adopt diverse mechanisms to regulate transcription and translation, and thereby, the function of the protein, which is associated with several major biological processes. For example, proliferation, differentiation, apoptosis, and metabolic pathways demand fine-tuning for the precise development of a specific tissue or organ. The deregulation of ncRNA expression is concomitant with multiple diseases, including lung diseases. This review highlights recent advances in the post-transcriptional regulation of miRNAs and lncRNAs in lung diseases such as asthma, chronic obstructive pulmonary disease, cystic fibrosis, and idiopathic pulmonary fibrosis. Further, we also discuss the emerging role of ncRNAs as biomarkers as well as therapeutic targets for lung diseases. However, more investigations are required to explore miRNAs and lncRNAs interaction, and their function in the regulation of mRNA expression. Understanding these mechanisms might lead to early diagnosis and the development of novel therapeutics for lung diseases.
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Affiliation(s)
- Dharmendra Kumar Soni
- Department of Anatomy, Physiology and Genetics, School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - Roopa Biswas
- Department of Anatomy, Physiology and Genetics, School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
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8
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Jakwerth CA, Chaker AM, Guerth F, Oelsner M, Pechtold L, Zur Bonsen LS, Ullmann JT, Krauss-Etschmann S, Erb A, Kau J, Plaschke M, Winkler M, Kurz A, Kloss A, Esser-von Bieren J, Schmidt-Weber CB, Zissler UM. Sputum microRNA-screening reveals Prostaglandin EP3 receptor as selective target in allergen-specific immunotherapy. Clin Exp Allergy 2021; 51:1577-1591. [PMID: 34514658 DOI: 10.1111/cea.14013] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 09/08/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND Several microRNAs (miRs) have been described as potential biomarkers in liquid biopsies and in the context of allergic asthma, while therapeutic effects on the airway expression of miRs remain elusive. In this study, we investigated epigenetic miR-associated mechanisms in the sputum of grass pollen-allergic patients with and without allergen-specific immunotherapy (AIT). METHODS Induced sputum samples of healthy controls (HC), AIT-treated and -untreated grass pollen-allergic rhinitis patients with (AA) and without asthma (AR) were profiled using miR microarray and whole-transcriptome microarray analysis of the same samples. miR targets were predicted in silico and used to identify inverse regulation. Local PGE2 levels were measured using ELISA. RESULTS Two hundred and fifty nine miRs were upregulated in the sputum of AA patients compared with HC, while only one was downregulated. The inverse picture was observed in induced sputum of AIT-treated patients: while 21 miRs were downregulated, only 4 miRs were upregulated in asthmatics upon AIT. Of these 4 miRs, miR-3935 stood out, as its predicted target PTGER3, the prostaglandin EP3 receptor, was downregulated in treated AA patients compared with untreated. The levels of its ligand PGE2 in the sputum supernatants of these samples were increased in allergic patients, especially asthmatics, and downregulated after AIT. Finally, local PGE2 levels correlated with ILC2 frequencies, secreted sputum IL-13 levels, inflammatory cell load, sputum eosinophils and symptom burden. CONCLUSIONS While profiling the sputum of allergic patients for novel miR expression patterns, we uncovered an association between miR-3935 and its predicted target gene, the prostaglandin E3 receptor, which might mediate AIT effects through suppression of the PGE2 -PTGER3 axis.
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Affiliation(s)
- Constanze A Jakwerth
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany
| | - Adam M Chaker
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany.,Department of Otorhinolaryngology, TUM School of Medicine, Technical University Munich, Klinikum rechts der Isar, Munich, Germany
| | - Ferdinand Guerth
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany
| | - Madlen Oelsner
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany
| | - Lisa Pechtold
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany.,Department of Otorhinolaryngology, TUM School of Medicine, Technical University Munich, Klinikum rechts der Isar, Munich, Germany
| | - Lynn S Zur Bonsen
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany.,Department of Otorhinolaryngology, TUM School of Medicine, Technical University Munich, Klinikum rechts der Isar, Munich, Germany
| | - Julia T Ullmann
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany
| | - Susanne Krauss-Etschmann
- Research Center Borstel, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Borstel, Germany.,Institute of Experimental Medicine, Christian-Albrechts University Kiel, Kiel, Germany
| | - Anna Erb
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany
| | - Josephine Kau
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany.,Department of Otorhinolaryngology, TUM School of Medicine, Technical University Munich, Klinikum rechts der Isar, Munich, Germany
| | - Mirjam Plaschke
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany.,Department of Otorhinolaryngology, TUM School of Medicine, Technical University Munich, Klinikum rechts der Isar, Munich, Germany
| | - Marlene Winkler
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany.,Department of Otorhinolaryngology, TUM School of Medicine, Technical University Munich, Klinikum rechts der Isar, Munich, Germany
| | - Alexandra Kurz
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany.,Department of Otorhinolaryngology, TUM School of Medicine, Technical University Munich, Klinikum rechts der Isar, Munich, Germany
| | - Antonia Kloss
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany.,Department of Otorhinolaryngology, TUM School of Medicine, Technical University Munich, Klinikum rechts der Isar, Munich, Germany
| | - Julia Esser-von Bieren
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany
| | - Carsten B Schmidt-Weber
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany
| | - Ulrich M Zissler
- Center of Allergy & Environment (ZAUM), Technical University of Munich (TUM), Helmholtz Center Munich, German Research Center for Environmental Health, Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany
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9
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MicroRNA-155 Modulates Macrophages' Response to Non-Tuberculous Mycobacteria through COX-2/PGE2 Signaling. Pathogens 2021; 10:pathogens10080920. [PMID: 34451384 PMCID: PMC8398909 DOI: 10.3390/pathogens10080920] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 07/01/2021] [Accepted: 07/17/2021] [Indexed: 12/19/2022] Open
Abstract
Non-tuberculous mycobacteria (NTM) have been recognized as a causative agent of various human diseases, including severe infections in immunocompromised patients, such as people living with HIV. The most common species identified is the Mycobacterium avium-intracellulare complex (MAI/MAC), accounting for a majority of infections. Despite abundant information detailing the clinical significance of NTM, little is known about host–pathogen interactions in NTM infection. MicroRNAs (miRs) serve as important post-transcriptional regulators of gene expression. Using a microarray profile, we found that the expression of miR-155 and cyclo-oxygenase 2 (COX-2) is significantly increased in bone-marrow-derived macrophages from mice and human monocyte-derived macrophages from healthy volunteers that are infected with NTM. Antagomir against miR-155 effectively suppressed expression of COX-2 and reduced Prostaglandin E2(PGE2) secretion, suggesting that COX-2/PGE2 expression is dependent on miR-155. Mechanistically, we found that inhibition of NF-κB activity significantly reduced miR-155/COX-2 expression in infected macrophages. Most importantly, blockade of COX-2, E-prostanoid receptors (EP2 and EP4) enhanced killing of MAI in macrophages. These findings provide novel mechanistic insights into the role of miR-155/COX-2/PGE2 signalling and suggest that induction of these pathways enhances survival of mycobacteria in macrophages. Defining host–pathogen interactions can lead to novel immunomodulatory therapies for NTM infections which are difficult to treat.
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10
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Camoretti-Mercado B, Lockey RF. Airway smooth muscle pathophysiology in asthma. J Allergy Clin Immunol 2021; 147:1983-1995. [PMID: 34092351 DOI: 10.1016/j.jaci.2021.03.035] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 03/06/2021] [Accepted: 03/16/2021] [Indexed: 02/08/2023]
Abstract
The airway smooth muscle (ASM) cell plays a central role in the pathogenesis of asthma and constitutes an important target for treatment. These cells control muscle tone and thus regulate the opening of the airway lumen and air passage. Evidence indicates that ASM cells participate in the airway hyperresponsiveness as well as the inflammatory and remodeling processes observed in asthmatic subjects. Therapeutic approaches require a comprehensive understanding of the structure and function of the ASM in both the normal and disease states. This review updates current knowledge about ASM and its effects on airway narrowing, remodeling, and inflammation in asthma.
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Affiliation(s)
- Blanca Camoretti-Mercado
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, Fla.
| | - Richard F Lockey
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, Fla
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11
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MicroRNA Targets for Asthma Therapy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1303:89-105. [PMID: 33788189 DOI: 10.1007/978-3-030-63046-1_6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Asthma is a chronic inflammatory obstructive lung disease that is stratified into endotypes. Th2 high asthma is due to an imbalance of Th1/Th2 signaling leading to abnormally high levels of Th2 cytokines, IL-4, IL-5, and IL-13 and in some cases a reduction in type I interferons. Some asthmatics express Th2 low, Th1/Th17 high phenotypes with or without eosinophilia. Most asthmatics with Th2 high phenotype respond to beta-adrenergic agonists, muscarinic antagonists, and inhaled corticosteroids. However, 5-10% of asthmatics are not well controlled by these therapies despite significant advances in lung immunology and the pathogenesis of severe asthma. This problem is being addressed by developing novel classes of anti-inflammatory agents. Numerous studies have established efficacy of targeting pro-inflammatory microRNAs in mouse models of mild/moderate and severe asthma. Current approaches employ microRNA mimics and antagonists designed for use in vivo. Chemically modified oligonucleotides have enhanced stability in blood, increased cell permeability, and optimized target specificity. Delivery to lung tissue limits clinical applications, but it is a tractable problem. Future studies need to define the most effective microRNA targets and effective delivery systems. Successful oligonucleotide drug candidates must have adequate lung cell uptake, high target specificity, and efficacy with tolerable off-target effects.
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12
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The potency of lncRNA MALAT1/miR-155/CTLA4 axis in altering Th1/Th2 balance of asthma. Biosci Rep 2021; 40:221794. [PMID: 31909418 PMCID: PMC7024843 DOI: 10.1042/bsr20190397] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 11/14/2019] [Accepted: 11/15/2019] [Indexed: 12/14/2022] Open
Abstract
Objectives: The present study examined if the metastasis-associated lung adenocarcinoma transcript 1 (MALAT1)/miR-155/CTLA-4 axis was involved in modifying Th1/Th2 balance, a critical indicator for asthma progression. Methods: Altogether 772 asthma patients and 441 healthy controls were recruited, and their blood samples were collected to determine expressional levels of MALAT1, miR-155, CTLA-4, T-bet, GATA3, Th1-type cytokines and Th2-type cytokines. The CD4+ T cells were administered with pcDNA3.1-MALAT1, si-MALAT1, miR-155 mimic and miR-155 inhibitor to assess their effects on cytokine release. The luciferase reporter gene assay was also adopted to evaluate the sponging relationships between MALAT1 and miR-155, as well as between miR-155 and CTLA-4. Results: Over-expressed MALAT1 and under-expressed miR-155 were more frequently detected among asthma patients who showed traits of reduced forced expiratory failure volume in 1 s (FEV1), FEV1/forced vital capacity (FVC) and FEV1% of predicted (P<0.05). Moreover, MALAT1 expression was negatively expressed with the Th1/Th2 and T-bet/GATA3 ratios, yet miR-155 expression displayed a positively correlation with the ratios (P<0.05). Additionally, the IFN-γ, IL-2 and T-bet levels were reduced under the influence of pcDNA3.1-MALAT1 and miR-155 inhibitor, while levels of IL-4, IL-10 and GATA3 were raised under identical settings (P<0.05). Furthermore, MALAT1 constrained expression of miR-155 within CD4+ T cells by sponging it, and CTLA-4 could interfere with the effects of MALAT1 and miR-155 on Th1/Th2 balance and T-bet/Gata3 ratio (P<0.05). Conclusion: MALAT1 sponging miR-155 was involved with regulation of Th1/Th2 balance within CD4+ T cells, which might aid to develop therapies for amelioration of asthmatic inflammation.
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13
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Pascoe CD, Jha A, Ryu MH, Ragheb M, Vaghasiya J, Basu S, Stelmack GL, Srinathan S, Kidane B, Kindrachuk J, O'Byrne PM, Gauvreau GM, Ravandi A, Carlsten C, Halayko AJ. Allergen inhalation generates pro-inflammatory oxidised phosphatidylcholine associated with airway dysfunction. Eur Respir J 2021; 57:13993003.00839-2020. [PMID: 32883680 DOI: 10.1183/13993003.00839-2020] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 08/26/2020] [Indexed: 01/14/2023]
Abstract
Oxidised phosphatidylcholines (OxPCs) are produced under conditions of elevated oxidative stress and can contribute to human disease pathobiology. However, their role in allergic asthma is unexplored. The aim of this study was to characterise the OxPC profile in the airways after allergen challenge of people with airway hyperresponsiveness (AHR) or mild asthma. The capacity of OxPCs to contribute to pathobiology associated with asthma was also to be determined.Using bronchoalveolar lavage fluid from two human cohorts, OxPC species were quantified using ultra-high performance liquid chromatography-tandem mass spectrometry. Murine thin-cut lung slices were used to measure airway narrowing caused by OxPCs. Human airway smooth muscle (HASM) cells were exposed to OxPCs to assess concentration-associated changes in inflammatory phenotype and activation of signalling networks.OxPC profiles in the airways were different between people with and without AHR and correlated with methacholine responsiveness. Exposing patients with mild asthma to allergens produced unique OxPC signatures that associated with the severity of the late asthma response. OxPCs dose-dependently induced 15% airway narrowing in murine thin-cut lung slices. In HASM cells, OxPCs dose-dependently increased the biosynthesis of cyclooxygenase-2, interleukin (IL)-6, IL-8, granulocyte-macrophage colony-stimulating factor and the production of oxylipins via protein kinase C-dependent pathways.Data from human cohorts and primary HASM cell culture show that OxPCs are present in the airways, increase after allergen challenge and correlate with metrics of airway dysfunction. Furthermore, OxPCs may contribute to asthma pathobiology by promoting airway narrowing and inducing a pro-inflammatory phenotype and contraction of airway smooth muscle. OxPCs represent a potential novel target for treating oxidative stress-associated pathobiology in asthma.
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Affiliation(s)
- Christopher D Pascoe
- Dept of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB, Canada.,Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, MB, Canada.,Co-first authors
| | - Aruni Jha
- Dept of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB, Canada.,Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, MB, Canada.,Co-first authors
| | - Min Hyung Ryu
- Dept of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Mirna Ragheb
- Dept of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB, Canada.,Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, MB, Canada
| | - Jignesh Vaghasiya
- Dept of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB, Canada.,Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, MB, Canada
| | - Sujata Basu
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, MB, Canada
| | - Gerald L Stelmack
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, MB, Canada
| | | | - Biniam Kidane
- Dept of Surgery, University of Manitoba, Winnipeg, MB, Canada
| | - Jason Kindrachuk
- Dept of Medical Microbiology, University of Manitoba, Winnipeg, MB, Canada
| | - Paul M O'Byrne
- Dept of Medicine, Firestone Institute of Respiratory Health, McMaster University, Hamilton, ON, Canada
| | - Gail M Gauvreau
- Dept of Medicine, Firestone Institute of Respiratory Health, McMaster University, Hamilton, ON, Canada
| | - Amir Ravandi
- Dept of Medicine, University of Manitoba, Winnipeg, MB, Canada
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14
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Kim S, Lee ES, Lee EJ, Jung JY, Lee SB, Lee HJ, Kim J, Kim HJ, Lee JW, Son BH, Gong G, Ahn SH, Chang S. Targeted eicosanoids profiling reveals a prostaglandin reprogramming in breast Cancer by microRNA-155. J Exp Clin Cancer Res 2021; 40:43. [PMID: 33494773 PMCID: PMC7831268 DOI: 10.1186/s13046-021-01839-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 01/11/2021] [Indexed: 11/10/2022] Open
Abstract
Abstract Background Prostaglandin is one of the key metabolites for inflammation-related carcinogenesis. Despite the microRNA-155 is implicated in various types of cancers, it’s function in prostaglandin metabolism is largely unknown. Methods A targeted profiling of eicosanoids including prostaglandin, leukotriene and thromboxanes was performed in miR-155 deficient breast tumors and cancer cells. The molecular mechanism of miR-155-mediated prostaglandin reprogramming was investigated in primary and cancer cell lines, by analyzing key enzymes responsible for the prostaglandin production. Results We found miR-155-deficient breast tumors, plasma of tumor-bearing mouse and cancer cells show altered prostaglandin level, especially for the prostaglandin E2 (PGE2) and prostaglandin D2 (PGD2). Subsequent analysis in primary cancer cells, 20 triple-negative breast cancer (TNBC) specimens and breast cancer cell lines with miR-155 knockdown consistently showed a positive correlation between miR-155 level and PGE2/PGD2 ratio. Mechanistically, we reveal the miR-155 reprograms the prostaglandin metabolism by up-regulating PGE2-producing enzymes PTGES/PTGES2 while down-regulating PGD2-producing enzyme PTGDS. Further, we show the up-regulation of PTGES2 is driven by miR-155-cMYC axis, whereas PTGES is transactivated by miR-155-KLF4. Thus, miR-155 hires dual-regulatory mode for the metabolic enzyme expression to reprogram the PGE2/PGD2 balance. Lastly, we show the miR-155-driven cellular proliferation is restored by the siRNA of PTGES1/2, of which expression also significantly correlates with breast cancer patients’ survival. Conclusions Considering clinical trials targeting PGE2 production largely have focused on the inhibition of Cox1 or Cox2 that showed cardiac toxicity, our data suggest an alternative way for suppressing PGE2 production via the inhibition of miR-155. As the antagomiR of miR-155 (MRG-106) underwent a phase-1 clinical trial, its effect should be considered and analyzed in prostaglandin metabolism in tumor. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-01839-4.
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Affiliation(s)
- Sinae Kim
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Eun Sung Lee
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Eun Ji Lee
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Jae Yun Jung
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Sae Byul Lee
- Division of Breast Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Hee Jin Lee
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Jisun Kim
- Division of Breast Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Hee Jeong Kim
- Division of Breast Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Jong Won Lee
- Division of Breast Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Byung Ho Son
- Division of Breast Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Gyungyub Gong
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Sei-Hyun Ahn
- Division of Breast Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - Suhwan Chang
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea.
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15
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Ghafouri-Fard S, Shoorei H, Taheri M, Sanak M. Emerging role of non-coding RNAs in allergic disorders. Biomed Pharmacother 2020; 130:110615. [PMID: 32777705 DOI: 10.1016/j.biopha.2020.110615] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/26/2020] [Accepted: 08/02/2020] [Indexed: 02/06/2023] Open
Abstract
RNA transcripts that not undergo translation into polypeptides recently came into focus of research. Long non-coding RNAs (lncRNAs), microRNAs (miRNAs) and circular RNAs (circRNAs) comprise the most important groups of these transcripts. LncRNAs have a length over 200 nucleotides and like mRNAs, have regulated transcription in a tissue specific manner. Biogenesis and function of lncRNAs is related to cell differentiation, response to stimuli and regulation of immune responses. LncRNAs can interact with both miRNAs and mRNAs. MiRNAs are characterized by a length of 22-24 nucleotides. MiRNAs regulate expression of genes at the post-transcriptional level. LncRNAs together with miRNAs are considered as regulators of the immune system. Alterations in their biogenesis is an important mechanism in the development immune related disorders. CircRNAs are products of aberrant maturation of protein-coding transcripts in a process of back-splicing, in which a single strand RNA molecule attains a closed circle shape. Despite a low expression, some circRNA were found to titrate miRNAs and interfere with maturation of legitimate protein-coding transcripts. We summarize the current knowledge on the role of non-coding transcripts in allergic disorders: asthma, atopic dermatitis, allergic rhinitis and urticaria. The reviewed data suggest lncRNA and miRNAs as therapeutic targets and biomarkers of allergic disorders.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Shoorei
- Department of Anatomical Sciences, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Marek Sanak
- Department of Internal Medicine, Jagiellonian University Medical College, Krakow, Poland.
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16
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Tan BWQ, Sim WL, Cheong JK, Kuan WS, Tran T, Lim HF. MicroRNAs in chronic airway diseases: Clinical correlation and translational applications. Pharmacol Res 2020; 160:105045. [PMID: 32590100 DOI: 10.1016/j.phrs.2020.105045] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 12/19/2022]
Abstract
MicroRNAs (miRNAs) are short single-stranded RNAs that have pivotal roles in disease pathophysiology through transcriptional and translational modulation of important genes. It has been implicated in the development of many diseases, such as stroke, cardiovascular conditions, cancers and inflammatory airway diseases. There is recent evidence that miRNAs play important roles in the pathogenesis of asthma and chronic obstructive pulmonary disease (COPD), and could help to distinguish between T2-low (non-eosinophilic, steroid-insensitive) versus T2-high (eosinophilic, steroid-sensitive) disease endotypes. As these are the two most prevalent chronic respiratory diseases globally, with rising disease burden, miRNA research might lead to the development of new diagnostic and therapeutic targets. Research involving miRNAs in airway disease is challenging because: (i) asthma and COPD are heterogeneous inflammatory airway diseases; there are overlapping but distinct inter- and intra-disease differences in the immunological pathophysiology, (ii) there exists more than 2000 known miRNAs and a single miRNA can regulate multiple targets, (iii) differential effects of miRNAs could be present in different cellular subtypes and tissues, and (iv) dysregulated miRNA expression might be a direct consequence of an indirect effect of airway disease onset or progression. As miRNAs are actively secreted in fluids and remain relatively stable, they have the potential for biomarker development and therapeutic targets. In this review, we summarize the preclinical data on potential miRNA biomarkers that mediate different pathophysiological mechanisms in airway disease. We discuss the framework for biomarker development using miRNA and highlight the need for careful patient characterization and endotyping in the screening and validation cohorts, profiling both airway and blood samples to determine the biological fluids of choice in different disease states or severity, and adopting an untargeted approach. Collaboration between the various stakeholders - pharmaceutical companies, laboratory professionals and clinician-scientists is crucial to reduce the difficulties and cost required to bring miRNA research into the translational stage for airway diseases.
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Affiliation(s)
- Bryce W Q Tan
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Wei Liang Sim
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jit Kong Cheong
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Win Sen Kuan
- Department of Emergency Medicine, National University Hospital, National University Health System, Singapore
| | - Thai Tran
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Hui Fang Lim
- Division of Respiratory & Critical Care Medicine, Department of Medicine, National University Hospital, National University Health System, Singapore; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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17
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Çömez MS, Cellat M, Özkan H, Borazan Y, Aydın T, Gökçek İ, Türk E, Güvenç M, Çakır A, Özsoy ŞY. Protective effect of oleuropein on ketamine-induced cardiotoxicity in rats. Naunyn Schmiedebergs Arch Pharmacol 2020; 393:1691-1699. [PMID: 32383030 DOI: 10.1007/s00210-020-01870-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 04/08/2020] [Indexed: 01/01/2023]
Abstract
The antioxidant and cardioprotective effects of oleuropein have been reported in several studies; however, its effect on ketamine cardiotoxicity has not been known yet. The aim of this study was to investigate the effects of oleuropein in ketamine-induced cardiotoxicity model in rats. A total of 28 male Wistar Albino rats were included in the study and they were randomly divided into four groups, each having seven rats. Group 1 (control): rats were given 1 mL of DMSO by oral gavage method for 7 days. Group 2 (ketamine): on the seventh day of the study, 60 mg/kg ketamine was administered intraperitoneally. Then, 60 mg/kg ketamine was administered intraperitoneally every 10 min for 3 h. Group 3 (oleuropein): rats were given 200 mg/kg/day oleuropein by oral gavage method for 7 days. Group 4 (oleuropein + ketamine): rats were given 1 × 200 mg/kg oleuropein by oral gavage method for 7 days. Furthermore, 60 mg/kg ketamine was administered intraperitoneally on the seventh day of the experiment. Then, 60 mg/kg ketamine was administered intraperitoneally every 10 min for 3 h. Serum cardiac marker (TnI, CK-MB and CK) levels were measured. Histopathological analysis was performed on a portion of the cardiac tissue. Cardiac tissue oxidative stress and antioxidant markers (MDA, GSH, GSH.Px and CAT), TNF-α, IL-6, NF-κB, COX-2 and Nrf-2 gene expressions, and protein conversion levels of related genes were determined. Data obtained showed that ketamine administration increased MDA (p < 0.001), TNF-α (p < 0.01), IL-6 (p < 0.01), COX-2 (p < 0.001) and NF-κB (p < 0.001) levels, as well as serum TnI (p < 0.001), CK-MB (p < 0.001) and CK (p < 0.01) levels whereas decreased GSH (p < 0.05) and Nrf-2 (p < 0.05) levels, as well as GSH-Px (p < 0.001) and CAT (p < 0.05) enzyme activities. Oleuropein administration was observed to decrease MDA, TNF-α, IL-6, COX-2, NF-κB, TnI, CK-MB and CK levels close to the control group and to increase GSH levels and GSH-Px and CAT enzyme activities close to the control group. This study showed that oleuropein administration reversed the increased oxidative stress and inflammation as a result of the use of ketamine and had protective effects on the heart.
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Affiliation(s)
- Mehmet Selim Çömez
- Department of Anesthesiology and Reanimation, Faculty of Medicine, Hatay Mustafa Kemal University, 31300, Hatay, Turkey.
| | - Mustafa Cellat
- Department of Physiology, Faculty of Veterinary Medicine, Hatay Mustafa Kemal University, Hatay, Turkey
| | - Hüseyin Özkan
- Department of Genetics, Faculty of Veterinary Medicine, Hatay Mustafa Kemal University, Hatay, Turkey
| | - Yakup Borazan
- Adıyaman University, Education And Research Hospital, Adıyaman, Turkey
| | - Tuba Aydın
- Department of Pharmacognosy, Faculty of Pharmacy, Ağrı İbrahim Çeçen University, Agrı, Turkey
| | - İshak Gökçek
- Department of Physiology, Faculty of Veterinary Medicine, Hatay Mustafa Kemal University, Hatay, Turkey
| | - Erdinç Türk
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Hatay Mustafa Kemal University, Hatay, Turkey
| | - Mehmet Güvenç
- Department of Physiology, Faculty of Veterinary Medicine, Hatay Mustafa Kemal University, Hatay, Turkey
| | - Ahmet Çakır
- Department of Chemistry, Faculty of Science and Letters, Kilis 7 Aralık University, Kilis, Turkey
| | - Şule Yurdagül Özsoy
- Department of Pathology, Faculty of Veterinary Medicine, Adnan Menderes University, Aydın, Turkey
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18
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Pasca S, Jurj A, Petrushev B, Tomuleasa C, Matei D. MicroRNA-155 Implication in M1 Polarization and the Impact in Inflammatory Diseases. Front Immunol 2020; 11:625. [PMID: 32351507 PMCID: PMC7174664 DOI: 10.3389/fimmu.2020.00625] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 03/19/2020] [Indexed: 12/20/2022] Open
Abstract
Macrophages are known to have an impact in cytokine signaling in the myriad of organs in which they reside and are classically known to be either pro-inflammatory (M1), anti-inflammatory (M2). Different classes of signaling molecules influence these states, of which, microRNAs represent key modulators. These are short RNA species approximately 21 to 23 nucleotides long that generally act by binding to the 3' untranslated region of mRNAs, regulating their translation, and, thus, the quantity of protein they encode. From these species, microRNA-155 was observed to be of great importance for M1 polarization. Because of it's major implication in M1 polarization microRNA-155 was shown to be implicated in different inflammatory diseases. To name a few, microRNA-155 was shown to be modified in patients with asthma and to correlate with asthma symptoms in mouse model; it has been shown to modulate the activity of foam cells and influence the dimensions of the atherosclerotic plaque and it has also been shown to be of crucial influence in transducing the signal of LPS in septic shock. Because of this, the current review aims to offer an overview of the role of microRNA-155 in M1 polarization, the implication that this poses for the pathophysiology of inflammatory diseases and the potential therapeutic possibilities that this knowledge might bring. Currently, microRNA-155 has been used in clinical trials as a marker of inflammation, but the question remains if it's inhibition will be useful in inflammatory diseases, as other products might have a better cost/benefit ratio.
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Affiliation(s)
- Sergiu Pasca
- Department of Hematology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ancuta Jurj
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Bobe Petrushev
- “Octavian Fodor” Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania
| | - Ciprian Tomuleasa
- Department of Hematology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
- The Oncology Institute Prof. Dr. Ion Chiricuta, Cluj-Napoca, Romania
| | - Daniela Matei
- “Octavian Fodor” Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania
- Department of Gastroenterology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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19
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Baskara-Yhuellou I, Tost J. The impact of microRNAs on alterations of gene regulatory networks in allergic diseases. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2020; 120:237-312. [PMID: 32085883 DOI: 10.1016/bs.apcsb.2019.11.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Allergic diseases including asthma are worldwide on the rise and contribute significantly to health expenditures. Allergic diseases are prototypic diseases with a strong gene by environment interaction component and epigenetic mechanisms might mediate the effects of the environment on the disease phenotype. MicroRNAs, small non-coding RNAs (miRNAs), regulate gene expression post-transcriptionally. Functional single-stranded miRNAs are generated in multiple steps of enzymatic processing from their precursors and mature miRNAs are included into the RNA-induced silencing complex (RISC). They imperfectly base-pair with the 3'UTR region of targeted genes leading to translational repression or mRNA decay. The cellular context and microenvironment as well the isoform of the mRNA control the dynamics and complexity of the regulatory circuits induced by miRNAs that regulate cell fate decisions and function. MiR-21, miR-146a/b and miR-155 are among the best understood miRNAs of the immune system and implicated in different diseases including allergic diseases. MiRNAs are implicated in the induction of the allergy reinforcing the Th2 phenotype (miR-19a, miR-24, miR-27), while other miRNAs promote regulatory T cells associated with allergen tolerance or unresponsiveness. In the current chapter we describe in detail the biogenesis and regulatory function of miRNAs and summarize current knowledge on miRNAs in allergic diseases and allergy relevant cell fate decisions focusing mainly on immune cells. Furthermore, we evoke the principles of regulatory loops and feedback mechanisms involving miRNAs on examples with relevance for allergic diseases. Finally, we show the potential of miRNAs and exosomes containing miRNAs present in several biological fluids that can be exploited with non-invasive procedures for diagnostic and potentially therapeutic purposes.
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Affiliation(s)
- Indoumady Baskara-Yhuellou
- Laboratory for Epigenetics & Environment, Centre National de Recherche en Génomique Humaine, CEA-Institut de Biologie François Jacob, Evry, France
| | - Jörg Tost
- Laboratory for Epigenetics & Environment, Centre National de Recherche en Génomique Humaine, CEA-Institut de Biologie François Jacob, Evry, France
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20
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Ryan KM, Boyle NT, Harkin A, Connor TJ. Dexamethasone attenuates inflammatory-mediated suppression of β 2-adrenoceptor expression in rat primary mixed glia. J Neuroimmunol 2019; 338:577082. [PMID: 31707103 DOI: 10.1016/j.jneuroim.2019.577082] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 10/04/2019] [Accepted: 10/04/2019] [Indexed: 11/29/2022]
Abstract
β2-adrenoceptors are G-protein coupled receptors expressed on both astrocytes and microglia that play a key role in mediating the anti-inflammatory actions of noradrenaline in the CNS. Here the effect of an inflammatory stimulus (LPS + IFN-γ) was examined on glial β2-adrenoceptor expression and function. Exposure of glia to LPS + IFN-γ decreased β2-adrenoceptor mRNA and agonist-stimulated production of the intracellular second messenger cAMP. Pre-treatment with the synthetic glucocorticoid and potent anti-inflammatory agent dexamethasone prevented the LPS + IFN-γ-induced suppression of β2-adrenoceptor mRNA expression. These results raise the possibility that inflammation-mediated β2-adrenoceptor downregulation in glia may dampen the innate anti-inflammatory properties of noradrenaline in the CNS.
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Affiliation(s)
- Karen M Ryan
- Neuroimmunology Research Group, Department of Physiology, Trinity College Institute of Neuroscience & School of Medicine, Trinity College, Dublin 2, Ireland
| | - Noreen T Boyle
- Neuroimmunology Research Group, Department of Physiology, Trinity College Institute of Neuroscience & School of Medicine, Trinity College, Dublin 2, Ireland
| | - Andrew Harkin
- Neuropsychopharmacology Research Group, Trinity College Institute of Neuroscience, School of Pharmacy and Pharmaceutical Sciences, Trinity College, Dublin 2, Ireland.
| | - Thomas J Connor
- Neuroimmunology Research Group, Department of Physiology, Trinity College Institute of Neuroscience & School of Medicine, Trinity College, Dublin 2, Ireland
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Murdaca G, Tonacci A, Negrini S, Greco M, Borro M, Puppo F, Gangemi S. Effects of AntagomiRs on Different Lung Diseases in Human, Cellular, and Animal Models. Int J Mol Sci 2019; 20:ijms20163938. [PMID: 31412612 PMCID: PMC6719072 DOI: 10.3390/ijms20163938] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 07/14/2019] [Accepted: 07/30/2019] [Indexed: 12/22/2022] Open
Abstract
INTRODUCTION MiRNAs have been shown to play a crucial role among lung cancer, pulmonary fibrosis, tuberculosis (TBC) infection, and bronchial hypersensitivity, thus including chronic obstructive pulmonary disease (COPD) and asthma. The oncogenic effect of several miRNAs has been recently ruled out. In order to act on miRNAs turnover, antagomiRs have been developed. MATERIALS AND METHODS The systematic review was conducted under the PRISMA guidelines (registration number is: CRD42019134173). The PubMed database was searched between 1 January 2000 and 30 April 2019 under the following search strategy: (((antagomiR) OR (mirna antagonists) OR (mirna antagonist)) AND ((lung[MeSH Terms]) OR ("lung diseases"[MeSH Terms]))). We included original articles, published in English, whereas exclusion criteria included reviews, meta-analyses, single case reports, and studies published in a language other than English. RESULTS AND CONCLUSIONS A total of 68 articles matching the inclusion criteria were retrieved. Overall, the use of antagomiR was seen to be efficient in downregulating the specific miRNA they are conceived for. The usefulness of antagomiRs was demonstrated in humans, animal models, and cell lines. To our best knowledge, this is the first article to encompass evidence regarding miRNAs and their respective antagomiRs in the lung, in order to provide readers a comprehensive review upon major lung disorders.
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Affiliation(s)
- Giuseppe Murdaca
- Clinical Immunology Unit, Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, 16132 Genoa, Italy.
| | - Alessandro Tonacci
- Clinical Physiology Institute, National Research Council of Italy (IFC-CNR), 56124 Pisa, Italy
| | - Simone Negrini
- Clinical Immunology Unit, Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, 16132 Genoa, Italy
| | - Monica Greco
- Clinical Immunology Unit, Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, 16132 Genoa, Italy
| | - Matteo Borro
- Clinical Immunology Unit, Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, 16132 Genoa, Italy
| | - Francesco Puppo
- Clinical Immunology Unit, Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, 16132 Genoa, Italy
| | - Sebastiano Gangemi
- School and Operative Unit of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy
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22
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Feketea G, Bocsan CI, Popescu C, Gaman M, Stanciu LA, Zdrenghea MT. A Review of Macrophage MicroRNAs' Role in Human Asthma. Cells 2019; 8:cells8050420. [PMID: 31071965 PMCID: PMC6562863 DOI: 10.3390/cells8050420] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/01/2019] [Accepted: 05/07/2019] [Indexed: 02/07/2023] Open
Abstract
There is an imbalance in asthma between classically activated macrophages (M1 cells) and alternatively activated macrophages (M2 cells) in favor of the latter. MicroRNAs (miRNAs) play a critical role in regulating macrophage proliferation and differentiation and control the balance of M1 and M2 macrophage polarization, thereby controlling immune responses. Here we review the current published data concerning miRNAs with known correlation to a specific human macrophage phenotype and polarization, and their association with adult asthma. MiRNA-targeted therapy is still in the initial stages, but clinical trials are under recruitment or currently running for some miRNAs in other diseases. Regulating miRNA expression via their upregulation or downregulation could show potential as a novel therapy for improving treatment efficacy in asthma.
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Affiliation(s)
- Gavriela Feketea
- Department of Hematology, Iuliu Haţieganu University of Medicine and Pharmacy, 400124 Cluj-Napoca, Romania.
| | - Corina I Bocsan
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Iuliu Haţieganu University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania.
| | - Cristian Popescu
- Department of Hematology, Iuliu Haţieganu University of Medicine and Pharmacy, 400124 Cluj-Napoca, Romania.
| | - Mihaela Gaman
- Department of Hematology, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania.
| | - Luminita A Stanciu
- National Heart and Lung Institute, Imperial College London, London W2 1PG, UK.
| | - Mihnea T Zdrenghea
- Department of Hematology, Iuliu Haţieganu University of Medicine and Pharmacy, 400124 Cluj-Napoca, Romania.
- Department of Hematology, Ion Chiricuta Oncology Institute, 400010 Cluj-Napoca, Romania.
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23
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Zhang L, Zhang X, Zheng J, Liu Y, Wang J, Wang G, Zhang HP, Kang DY, Peng ZG, Ji YL, Wang L, Gibson PG, Wang G. Depressive symptom-associated IL-1β and TNF-α release correlates with impaired bronchodilator response and neutrophilic airway inflammation in asthma. Clin Exp Allergy 2019; 49:770-780. [PMID: 30675924 DOI: 10.1111/cea.13346] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 10/16/2018] [Accepted: 12/20/2018] [Indexed: 02/05/2023]
Abstract
BACKGROUND Depressive symptoms worsen asthma outcomes; however, the mechanism remains largely unexplored. OBJECTIVE This study aimed to determine whether depressive symptom-associated immune inflammation correlates with impaired bronchodilator response (BDR) and airway inflammatory phenotypes. METHODS Eligible adults with asthma (n = 198) underwent clinical assessment, sputum induction and blood sampling. Depressive symptoms were defined by scores on the depression subscale of the Hospital Anxiety and Depression Scale (HADS-D). Pre- and post-bronchodilator spirometry was performed for BDR. Airway inflammatory phenotypes were defined by sputum cell counts. CRP, IL-1β, IL-5, IL-6, IL-8, TNF-α, IFN-γ, CCL17 and CCL22 in serum and sputum were detected. RESULTS Compared with the non-depressive group (n = 174), the depressive group (n = 24) exhibited impaired BDR (P = 0.032) and increased sputum neutrophils (P = 0.023), which correlated with the HADS-D scores (P = 0.027 and P = 0.029). Levels of IL-1β, TNF-α and IFN-γ in the serum and those of IL-1β and IFN-γ in the sputum were elevated in the depressive group compared to those in the non-depressive group (all P < 0.05). Multiple regression models indicated that TNF-α in the sputum and IL-1β, IL-6 and IFN-γ in both the serum and sputum were inversely associated with BDR; TNF-α in the sputum and IL-1β in both the serum and sputum were positively correlated with sputum neutrophils. Mediation analyses revealed that IL-1β and TNF-α in the sputum and IL-1β in both the serum and sputum mediate the correlations of the HADS-D scores with BDR and sputum neutrophils, respectively. CONCLUSIONS AND CLINICAL RELEVANCE Asthma patients with depressive symptoms present worse asthma control, which is most likely explained by impaired BDR and neutrophilic airway inflammation. IL-1β and TNF-α, which are two key pro-inflammatory cytokines that mediate the correlation of depressive symptoms with impaired BDR and neutrophilic airway inflammation, may serve as targeted biomarkers in the neuropsychological phenotype of asthma; however, this result needs to be further validated.
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Affiliation(s)
- Li Zhang
- Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, State Key Laboratory of Biotherapy, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Xin Zhang
- Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, State Key Laboratory of Biotherapy, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China.,Department of Respiratory and Critical Care Medicine, Clinical Research Center for Respiratory Disease, West China Hospital, Sichuan University, Chengdu, China
| | - Jing Zheng
- Department of Integrated Traditional Chinese and Western Medicine, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Ying Liu
- Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, State Key Laboratory of Biotherapy, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Ji Wang
- Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, State Key Laboratory of Biotherapy, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Gang Wang
- Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, State Key Laboratory of Biotherapy, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Hong Ping Zhang
- Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, State Key Laboratory of Biotherapy, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - De Ying Kang
- Department of Evidence-based Medicine and Clinical Epidemiology, West China Hospital, Sichuan University, Chengdu, China
| | - Zu Gui Peng
- Department of Psychiatry, The Mental Health Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yu Lin Ji
- Department of Respiratory and Critical Care Medicine, Clinical Research Center for Respiratory Disease, West China Hospital, Sichuan University, Chengdu, China
| | - Lei Wang
- Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, State Key Laboratory of Biotherapy, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Peter Gerard Gibson
- Department of Respiratory and Sleep Medicine, John Hunter Hospital, Hunter Medical Research Institute, Priority Research Centre for Healthy Lungs, University of Newcastle, Newcastle, New South Wales, Australia
| | - Gang Wang
- Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, State Key Laboratory of Biotherapy, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China.,Pneumology Group, Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China.,Department of Respiratory and Critical Care Medicine, Clinical Research Center for Respiratory Disease, West China Hospital, Sichuan University, Chengdu, China
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24
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Yaribeygi H, Atkin SL, Sahebkar A. Potential roles of microRNAs in redox state: An update. J Cell Biochem 2019; 120:1679-1684. [PMID: 30160790 DOI: 10.1002/jcb.27475] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 07/18/2018] [Indexed: 01/24/2023]
Abstract
Oxidative stress is an important underlying cause of many disease processes and may arise due to either increasing free radical generation or decreasing antioxidant defense systems. MicroRNAs (miRs) are 22-nucleotide non-coding RNAs that may regulate many intracellular processes; and, more recently, they have been implicated in the pathways for free radical generation leading to oxidative stress. However, conversely, there is evidence that miRs may have an antioxidant effect, thus miR expression may be critical for the maintenance of the normal redox state and cell homeostasis. This review addresses these discrepant and opposing miR actions on how they may modify and regulate the oxidative balance.
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Affiliation(s)
- Habib Yaribeygi
- Chronic Kidney Disease Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Amirhossein Sahebkar
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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25
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Gao Y, Wang B, Luo H, Zhang Q, Xu M. RETRACTED: miR-217 represses TGF-β1-induced airway smooth muscle cell proliferation and migration through targeting ZEB1. Biomed Pharmacother 2018; 108:27-35. [PMID: 30212709 DOI: 10.1016/j.biopha.2018.09.030] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 09/05/2018] [Accepted: 09/05/2018] [Indexed: 02/08/2023] Open
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief. The journal was alerted to several suspected image similarities within Figures 2C and 3B, between Figure 3B and 5E, and an image in Figure 3A appears to be present in another publication, as detailed here: https://pubpeer.com/publications/F4E8CA0032EF5375E7867504F3FC4A. These findings were confirmed as part of an internal investigation, and in addition, a portion of Figure 2C, ‘Scramble’ group appears to contain image similarities with Figure 5D ‘miR-217 mimic + ZEB1’ group. The journal requested the authors provide explanations and source data relating to these affected figures, but the Authors did not respond to these concerns. The Editor-in-Chief assessed this case and decided to retract the article.
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Affiliation(s)
- Ying Gao
- Otolaryngology Department, The Second Affiliated Hospital of Xi'an Jiaotong University, 710004, Shaanxi, China
| | - Botao Wang
- Otolaryngology Department, The Second Affiliated Hospital of Xi'an Jiaotong University, 710004, Shaanxi, China
| | - Huanan Luo
- Otolaryngology Department, The Second Affiliated Hospital of Xi'an Jiaotong University, 710004, Shaanxi, China
| | - Qing Zhang
- Otolaryngology Department, The Second Affiliated Hospital of Xi'an Jiaotong University, 710004, Shaanxi, China
| | - Min Xu
- Otolaryngology Department, The Second Affiliated Hospital of Xi'an Jiaotong University, 710004, Shaanxi, China.
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26
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Chiba Y, Suto W, Sakai H. Augmented Pla2g4c/Ptgs2/Hpgds axis in bronchial smooth muscle tissues of experimental asthma. PLoS One 2018; 13:e0202623. [PMID: 30161143 PMCID: PMC6116991 DOI: 10.1371/journal.pone.0202623] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Accepted: 08/07/2018] [Indexed: 12/19/2022] Open
Abstract
Rationale Augmented smooth muscle contractility of the airways is one of the causes of airway hyperresponsiveness in asthmatics. However, the mechanism of the altered properties of airway smooth muscle cells is not well understood. Objectives To identify differentially expressed genes (DEGs) related to the bronchial smooth muscle (BSM) hyper-contractility in a murine asthma model. Methods The ovalbumin (OA)-sensitized mice were repeatedly challenged with aerosolized OA to induce asthmatic reaction. Transcriptomic profiles were generated by microarray analysis of BSM tissues from the OA-challenged and control animals, and KEGG (Kyoto Encyclopedia of Genes and Genomes) Pathway Analysis was applied. Measurements and main results Tension study showed a BSM hyperresponsiveness to acetylcholine (ACh) in the OA-challenged mice. A total of 770 genes were differentially expressed between the OA-challenged and control animals. Pathway analysis showed a significant change in arachidonic acid (AA) metabolism pathway in BSM tissues of the OA-challenged mice. Validation of DEGs by quantitative RT-PCR showed a significant increase in PLA2 group 4c (Pla2g4c)/COX-2 (Ptgs2)/PGD2 synthase 2 (Hpgds) axis. PGD2 level in bronchoalveolar fluids of the OA-challenged mice was significantly increased. A 24-h incubation of BSM tissues with PGD2 caused a hyperresponsiveness to ACh in naive control mice. Conclusions AA metabolism is shifted towards PGD2 production in BSM tissues of asthma. Increased PGD2 level in the airways might be a cause of the BSM hyperresponsiveness in asthma.
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Affiliation(s)
- Yoshihiko Chiba
- Department of Physiology and Molecular Sciences, School of Pharmacy, Hoshi University, Tokyo, Japan
- * E-mail:
| | - Wataru Suto
- Department of Physiology and Molecular Sciences, School of Pharmacy, Hoshi University, Tokyo, Japan
| | - Hiroyasu Sakai
- Department of Analytical Pathophysiology, School of Pharmacy, Hoshi University, Tokyo, Japan
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27
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Qiu L, Zhang Y, Do DC, Ke X, Zhang S, Lambert K, Kumar S, Hu C, Zhou Y, Ishmael FT, Gao P. miR-155 Modulates Cockroach Allergen- and Oxidative Stress-Induced Cyclooxygenase-2 in Asthma. THE JOURNAL OF IMMUNOLOGY 2018; 201:916-929. [PMID: 29967100 DOI: 10.4049/jimmunol.1701167] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 06/01/2018] [Indexed: 12/13/2022]
Abstract
Exposure to cockroach allergen is a strong risk factor for developing asthma. Asthma has been associated with allergen-induced airway epithelial damage and heightened oxidant stress. In this study, we investigated cockroach allergen-induced oxidative stress in airway epithelium and its underlying mechanisms. We found that cockroach extract (CRE) could induce reactive oxygen species (ROS) production, particularly mitochondrial-derived ROS, in human bronchial epithelial cells. We then used the RT2 Profiler PCR array and identified that cyclooxygenase-2 (COX-2) was the most significantly upregulated gene related to CRE-induced oxidative stress. miR-155, predicted to target COX-2, was increased in CRE-treated human bronchial epithelial cells, and was showed to regulate COX-2 expression. Moreover, miR-155 can bind COX-2, induce COX-2 reporter activity, and maintain mRNA stability. Furthermore, CRE-treated miR-155-/- mice showed reduced levels of ROS and COX-2 expression in lung tissues and PGE2 in bronchoalveolar lavage fluid compared with wild-type mice. These miR-155-/- mice also showed reduced lung inflammation and Th2/Th17 cytokines. In contrast, when miR-155-/- mice were transfected with adeno-associated virus carrying miR-155, the phenotypic changes in CRE-treated miR-155-/- mice were remarkably reversed, including ROS, COX-2 expression, lung inflammation, and Th2/Th17 cytokines. Importantly, plasma miR-155 levels were elevated in severe asthmatics when compared with nonasthmatics or mild-to-moderate asthmatics. These increased plasma miR-155 levels were also observed in asthmatics with cockroach allergy compared with those without cockroach allergy. Collectively, these findings suggest that COX-2 is a major gene related to cockroach allergen-induced oxidative stress and highlight a novel role of miR-155 in regulating the ROS-COX-2 axis in asthma.
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Affiliation(s)
- Lipeng Qiu
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD 21224.,Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yan Zhang
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD 21224.,Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Danh C Do
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD 21224
| | - Xia Ke
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD 21224
| | - Simin Zhang
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Pennsylvania State University Milton S. Hershey Medical Center, Hershey, PA 17033; and
| | - Kristin Lambert
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Pennsylvania State University Milton S. Hershey Medical Center, Hershey, PA 17033; and
| | - Shruthi Kumar
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD 21224
| | - Chengping Hu
- Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Yufeng Zhou
- Children's Hospital and Institute of Biomedical Sciences, Fudan University, Key Laboratory of Neonatal Diseases, Ministry of Health, Shanghai 201102, China
| | - Faoud T Ishmael
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Pennsylvania State University Milton S. Hershey Medical Center, Hershey, PA 17033; and
| | - Peisong Gao
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD 21224;
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28
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Alaskhar Alhamwe B, Khalaila R, Wolf J, von Bülow V, Harb H, Alhamdan F, Hii CS, Prescott SL, Ferrante A, Renz H, Garn H, Potaczek DP. Histone modifications and their role in epigenetics of atopy and allergic diseases. ALLERGY, ASTHMA, AND CLINICAL IMMUNOLOGY : OFFICIAL JOURNAL OF THE CANADIAN SOCIETY OF ALLERGY AND CLINICAL IMMUNOLOGY 2018; 14:39. [PMID: 29796022 PMCID: PMC5966915 DOI: 10.1186/s13223-018-0259-4] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 04/24/2018] [Indexed: 12/16/2022]
Abstract
This review covers basic aspects of histone modification and the role of posttranslational histone modifications in the development of allergic diseases, including the immune mechanisms underlying this development. Together with DNA methylation, histone modifications (including histone acetylation, methylation, phosphorylation, ubiquitination, etc.) represent the classical epigenetic mechanisms. However, much less attention has been given to histone modifications than to DNA methylation in the context of allergy. A systematic review of the literature was undertaken to provide an unbiased and comprehensive update on the involvement of histone modifications in allergy and the mechanisms underlying this development. In addition to covering the growing interest in the contribution of histone modifications in regulating the development of allergic diseases, this review summarizes some of the evidence supporting this contribution. There are at least two levels at which the role of histone modifications is manifested. One is the regulation of cells that contribute to the allergic inflammation (T cells and macrophages) and those that participate in airway remodeling [(myo-) fibroblasts]. The other is the direct association between histone modifications and allergic phenotypes. Inhibitors of histone-modifying enzymes may potentially be used as anti-allergic drugs. Furthermore, epigenetic patterns may provide novel tools in the diagnosis of allergic disorders.
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Affiliation(s)
- Bilal Alaskhar Alhamwe
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps University Marburg, Hans-Meerwein-Straße 3, 35043 Marburg, Germany
- inVIVO Planetary Health, Group of the Worldwide Universities Network (WUN), New York, NJ USA
| | - Razi Khalaila
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps University Marburg, Hans-Meerwein-Straße 3, 35043 Marburg, Germany
| | - Johanna Wolf
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps University Marburg, Hans-Meerwein-Straße 3, 35043 Marburg, Germany
| | - Verena von Bülow
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps University Marburg, Hans-Meerwein-Straße 3, 35043 Marburg, Germany
| | - Hani Harb
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps University Marburg, Hans-Meerwein-Straße 3, 35043 Marburg, Germany
- inVIVO Planetary Health, Group of the Worldwide Universities Network (WUN), New York, NJ USA
- German Center for Lung Research (DZL), Gießen, Germany
- Present Address: Boston Children’s Hospital, Harvard Medical School, Boston, MA USA
| | - Fahd Alhamdan
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps University Marburg, Hans-Meerwein-Straße 3, 35043 Marburg, Germany
| | - Charles S. Hii
- Department of Immunopathology, SA Pathology, Women and Children’s Hospital Campus, North Adelaide, SA Australia
- Robinson Research Institute, School of Medicine and School of Biological Science, University of Adelaide, Adelaide, SA Australia
| | - Susan L. Prescott
- inVIVO Planetary Health, Group of the Worldwide Universities Network (WUN), New York, NJ USA
- School of Paediatrics and Child Health, University of Western Australia, Perth, WA Australia
| | - Antonio Ferrante
- inVIVO Planetary Health, Group of the Worldwide Universities Network (WUN), New York, NJ USA
- Department of Immunopathology, SA Pathology, Women and Children’s Hospital Campus, North Adelaide, SA Australia
- Robinson Research Institute, School of Medicine and School of Biological Science, University of Adelaide, Adelaide, SA Australia
| | - Harald Renz
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps University Marburg, Hans-Meerwein-Straße 3, 35043 Marburg, Germany
- inVIVO Planetary Health, Group of the Worldwide Universities Network (WUN), New York, NJ USA
- German Center for Lung Research (DZL), Gießen, Germany
| | - Holger Garn
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps University Marburg, Hans-Meerwein-Straße 3, 35043 Marburg, Germany
- German Center for Lung Research (DZL), Gießen, Germany
| | - Daniel P. Potaczek
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps University Marburg, Hans-Meerwein-Straße 3, 35043 Marburg, Germany
- inVIVO Planetary Health, Group of the Worldwide Universities Network (WUN), New York, NJ USA
- German Center for Lung Research (DZL), Gießen, Germany
- John Paul II Hospital, Krakow, Poland
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29
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Hansbro PM, Kim RY, Starkey MR, Donovan C, Dua K, Mayall JR, Liu G, Hansbro NG, Simpson JL, Wood LG, Hirota JA, Knight DA, Foster PS, Horvat JC. Mechanisms and treatments for severe, steroid-resistant allergic airway disease and asthma. Immunol Rev 2018; 278:41-62. [PMID: 28658552 DOI: 10.1111/imr.12543] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Severe, steroid-resistant asthma is clinically and economically important since affected individuals do not respond to mainstay corticosteroid treatments for asthma. Patients with this disease experience more frequent exacerbations of asthma, are more likely to be hospitalized, and have a poorer quality of life. Effective therapies are urgently required, however, their development has been hampered by a lack of understanding of the pathological processes that underpin disease. A major obstacle to understanding the processes that drive severe, steroid-resistant asthma is that the several endotypes of the disease have been described that are characterized by different inflammatory and immunological phenotypes. This heterogeneity makes pinpointing processes that drive disease difficult in humans. Clinical studies strongly associate specific respiratory infections with severe, steroid-resistant asthma. In this review, we discuss key findings from our studies where we describe the development of representative experimental models to improve our understanding of the links between infection and severe, steroid-resistant forms of this disease. We also discuss their use in elucidating the mechanisms, and their potential for developing effective therapeutic strategies, for severe, steroid-resistant asthma. Finally, we highlight how the immune mechanisms and therapeutic targets we have identified may be applicable to obesity-or pollution-associated asthma.
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Affiliation(s)
- Philip M Hansbro
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Richard Y Kim
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Malcolm R Starkey
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Chantal Donovan
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Kamal Dua
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Jemma R Mayall
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Gang Liu
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Nicole G Hansbro
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Jodie L Simpson
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Lisa G Wood
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Jeremy A Hirota
- James Hogg Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Darryl A Knight
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Paul S Foster
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Jay C Horvat
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
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30
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Saradna A, Do DC, Kumar S, Fu QL, Gao P. Macrophage polarization and allergic asthma. Transl Res 2018; 191:1-14. [PMID: 29066321 PMCID: PMC5776696 DOI: 10.1016/j.trsl.2017.09.002] [Citation(s) in RCA: 240] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 09/13/2017] [Accepted: 09/20/2017] [Indexed: 12/17/2022]
Abstract
Allergic asthma is associated with airway inflammation and airway hyperresponsiveness. Macrophage polarization has been shown to have a profound impact on asthma pathogenesis. On exposure to local microenvironments, recruited macrophages can be polarized into either classically activated (or M1) or alternatively activated (or M2) phenotypes. Macrophage polarization has been heavily associated with development of asthma. The process of regulation of macrophage polarization involves an intricate interplay between various cytokines, chemokines, transcriptional factors, and immune-regulatory cells. Different signals from the microenvironment are controlled by different receptors on the macrophages to initiate various macrophage polarization pathways. Most importantly, there is an increased attention on the epigenetic changes (eg, microRNAs, DNA methylation, and histone modification) that impact macrophage functional responses and M1/M2 polarization through modulating cellular signaling and signature gene expression. Thus, modulation of macrophage phenotypes through molecular intervention by targeting some of those potential macrophage regulators may have therapeutic potential in the treatment of allergic asthma and other allergic diseases. In this review, we will discuss the origin of macrophages, characterization of macrophages, macrophage polarization in asthma, and the underlying mechanisms regarding allergen-induced macrophage polarization with emphasis on the regulation of epigenetics, which will provide new insights into the therapeutic strategy for asthma.
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Affiliation(s)
- Arjun Saradna
- Division Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Md; Department of Internal Medicine, Maimonides Medical Center, Brooklyn, NY
| | - Danh C Do
- Division Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Md
| | - Shruthi Kumar
- Division Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Md; Bangalore Medical College and Research Institute, Bangalore, India
| | - Qing-Ling Fu
- Division Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Md; Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Peisong Gao
- Division Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Md.
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Shi Y, Fu X, Cao Q, Mao Z, Chen Y, Sun Y, Liu Z, Zhang Q. Overexpression of miR-155-5p Inhibits the Proliferation and Migration of IL-13-Induced Human Bronchial Smooth Muscle Cells by Suppressing TGF-β-Activated Kinase 1/MAP3K7-Binding Protein 2. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2018; 10:260-267. [PMID: 29676073 PMCID: PMC5911445 DOI: 10.4168/aair.2018.10.3.260] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 04/16/2017] [Accepted: 12/13/2017] [Indexed: 12/25/2022]
Abstract
Purpose Molecular mechanisms leading to asthma is still ill-defined. Though the function of microRNAs (miRNAs) in asthma was previously reported, the involvement of miR-155 in important features of this disease remains unknown. The present study was designed to uncover the probable involvement of miR-155-5p in the proliferation and migration of IL-13-induced human bronchial smooth muscle cells (BSMCs) and the intrinsic regulatory mechanism. Methods The effects of different concentrations of IL-13 on the proliferation and migration of BSMCs as well as the expression of miR-155-5p and its predicted target transforming growth factor (TGF)-β-activated kinase 1/MAP3K7-binding protein 2 (TAB2) were investigated. The effects of miR-155-5p on the proliferation and migration of interleukin (IL)-13-induced BSMCs was determined in vitro using BSMCs transfected with miR-155 mimic/inhibitor and induced by a high concentration of IL-13. The quantitative real-time polymerase chain reaction (qRTPCR) was employed for determining the expression of miR-155-5p and TAB2. Western blotting was applied to analyze the expression of TAB2 at the protein level. Cell proliferation and migration were assessed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and Transwell assays, respectively. Results The proliferation and migration of BSMCs were dose-dependently increased with IL-13 treatment. Contrariwise, IL-13 dose-dependently inhibited the expression of miR-155-5p in BSMCs. Mechanistic studies showed that inhibition of miR-155-5p further promoted the stimulatory effects of IL-13, whereas overexpression of miR-155 significantly inhibited these effects. In silico studies and luciferase reporter assays indicated that TAB2 was a negatively regulated miR-155-5p target. Conclusions These results suggested that miR-155-5p-inhibit the IL-13-induced proliferation and migration of BSMCs by targeting TAB2 and that the IL-13/miR-155/TAB2 pathway could serve as a therapeutic target for pulmonary diseases, especially asthma.
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Affiliation(s)
- Yujia Shi
- Department of Respiratory Medicine, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Xingli Fu
- Health Science Center, Jiangsu University, Zhenjiang, China
| | - Qi Cao
- Department of Respiratory Medicine, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Zhengdao Mao
- Department of Respiratory Medicine, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Yi Chen
- Department of Respiratory Medicine, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Yun Sun
- Department of Respiratory Medicine, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Zhiguang Liu
- Department of Respiratory Medicine, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Qian Zhang
- Department of Respiratory Medicine, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China.
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Chen H, Xu X, Cheng S, Xu Y, Xuefei Q, Cao Y, Xie J, Wang CY, Xu Y, Xiong W. Small interfering RNA directed against microRNA-155 delivered by a lentiviral vector attenuates asthmatic features in a mouse model of allergic asthma. Exp Ther Med 2017; 14:4391-4396. [PMID: 29104649 DOI: 10.3892/etm.2017.5093] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 06/15/2017] [Indexed: 01/21/2023] Open
Abstract
Asthma is a chronic T helper type 2 (Th2) cell-mediated inflammatory disease characterized by airway hyperresponsiveness (AHR) and airway inflammation. Although the majority of patients with asthma can achieve a good level of control with existing treatments, asthma runs a chronic course and the effectiveness of current treatment is not satisfactory for certain patients. MicroRNAs (miRNAs) are short noncoding RNAs that suppress gene expression at the post-transcriptional level; their role in regulating allergic inflammation remains largely unknown. The present study aimed to explore the role of miRNA-155 in the pathogenesis of asthma and its potential as a target for treatment. The expression of miRNA-155 increased in ovalbumin-sensitized and challenged mice compared with control mice, and lentiviral vector-delivered small interfering (si)RNA targeting miRNA-155 resulted in reduced AHR, airway inflammation and Th2 cytokine production. The data from the present study indicate that miRNA-155 serves an important role in the pathogenesis of asthma, and that lentiviral vector-delivered siRNA targeting miRNA-155 may serve as a novel approach for the treatment of allergic asthma.
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Affiliation(s)
- Huilong Chen
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Xiangqin Xu
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Sheng Cheng
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Yuzhu Xu
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Qi Xuefei
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Yong Cao
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Jungang Xie
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Cong-Yi Wang
- Center for Biomedical Research, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Yongjian Xu
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Weining Xiong
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
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Sun M, Lu Q. MicroRNA regulation of airway smooth muscle function. Biol Chem 2017; 397:507-11. [PMID: 26812790 DOI: 10.1515/hsz-2015-0298] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 01/11/2016] [Indexed: 01/01/2023]
Abstract
Airway smooth muscle (ASM) controls airway narrowing and plays a pivotal role in the pathogenesis of asthma. MicroRNAs are small yet powerful gene tuners that regulate diverse cellular processes. Recent studies have demonstrated the versatile role of microRNAs in regulating multiple ASM phenotypes that are critically involved in asthma pathogenesis. These ASM phenotypes include proliferation, cell size, chemokine secretion, and contractility. Here we review microRNA-mediated regulation of ASM functions and discuss the potential of microRNAs as a novel class of therapeutic targets to improve ASM function for asthma therapy.
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Rumzhum NN, Ammit AJ. Cyclooxygenase 2: its regulation, role and impact in airway inflammation. Clin Exp Allergy 2016; 46:397-410. [PMID: 26685098 DOI: 10.1111/cea.12697] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Cyclooxygenase 2 (COX-2: official gene symbol - PTGS2) has long been regarded as playing a pivotal role in the pathogenesis of airway inflammation in respiratory diseases including asthma. COX-2 can be rapidly and robustly expressed in response to a diverse range of pro-inflammatory cytokines and mediators. Thus, increased levels of COX-2 protein and prostanoid metabolites serve as key contributors to pathobiology in respiratory diseases typified by dysregulated inflammation. But COX-2 products may not be all bad: prostanoids can exert anti-inflammatory/bronchoprotective functions in airways in addition to their pro-inflammatory actions. Herein, we outline COX-2 regulation and review the diverse stimuli known to induce COX-2 in the context of airway inflammation. We discuss some of the positive and negative effects that COX-2/prostanoids can exert in in vitro and in vivo models of airway inflammation, and suggest that inhibiting COX-2 expression to repress airway inflammation may be too blunt an approach; because although it might reduce the unwanted effects of COX-2 activation, it may also negate the positive effects. Evidence suggests that prostanoids produced via COX-2 upregulation show diverse actions (and herein we focus on prostaglandin E2 as a key example); these can be either beneficial or deleterious and their impact on respiratory disease can be dictated by local concentration and specific interaction with individual receptors. We propose that understanding the regulation of COX-2 expression and associated receptor-mediated functional outcomes may reveal number of critical steps amenable to pharmacological intervention. These may prove invaluable in our quest towards future development of novel anti-inflammatory pharmacotherapeutic strategies for the treatment of airway diseases.
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Affiliation(s)
- N N Rumzhum
- Faculty of Pharmacy, University of Sydney, Sydney, NSW, Australia
| | - A J Ammit
- Faculty of Pharmacy, University of Sydney, Sydney, NSW, Australia
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Molecular Background of miRNA Role in Asthma and COPD: An Updated Insight. BIOMED RESEARCH INTERNATIONAL 2016; 2016:7802521. [PMID: 27376086 PMCID: PMC4916273 DOI: 10.1155/2016/7802521] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 04/29/2016] [Accepted: 05/15/2016] [Indexed: 12/14/2022]
Abstract
Inflammatory airway diseases are a significant health problems requiring new approaches to the existing therapies and addressing fundamental issues. Difficulties in developing effective therapeutic strategies might be caused by lack of understanding of their exact molecular mechanism. MicroRNAs (miRNAs) are a class of regulators that already revolutionized the view of gene expression regulation. A cumulating number of investigations show a pivotal role of miRNAs in the pathogenesis of asthma, chronic obstructive pulmonary disease (COPD), or airway remodeling through the regulation of many pathways involved in their pathogenesis. Expression changes of several miRNAs have also been found to play a role in the development and/or improvement in asthma or COPD. Still, relatively little is known about the role of miRNAs in inflammatory disorders. The microRNA profiles may differ depending on the cell type or antigen-presenting cell. Based on the newest literature, this review discusses the current knowledge concerning miRNA contribution and influence on lung inflammation and chosen inflammatory airway diseases: asthma and COPD.
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Abstract
Allergy is a common hypersensitivity disorder of the immune system, which, along with other factors, is also subjected to regulation by microRNAs. The most common allergic diseases are allergic rhinitis, asthma, atopic dermatitis, and food allergy, which all are multifactorial and very heterogeneous conditions, highlighting the need for more individualized treatment techniques. More particular key questions in relation to allergic diseases are how microRNAs influence the differentiation, polarization, plasticity and functions of T helper and other immune cells, as well as the development of immune tolerance. In addition, microRNAs can affect allergic inflammation and tissue remodeling through their functions in epithelial and other tissue cells. Among immune system-related microRNAs, miR-21, miR-146a, and miR-155 are the most intensively studied and have convincingly been demonstrated to regulate immune responses and tissue inflammation in allergic diseases. Further characterization of microRNA functions is important, as similar to other conditions, the modulation of microRNA expression could potentially be used for therapeutic purposes in allergic diseases in the future. In addition, miRNAs could be implemented as biomarkers for endotyping complex allergic conditions.
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37
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Rumzhum NN, Rahman MM, Oliver BG, Ammit AJ. Effect of Sphingosine 1-Phosphate on Cyclo-Oxygenase-2 Expression, Prostaglandin E2 Secretion, and β2-Adrenergic Receptor Desensitization. Am J Respir Cell Mol Biol 2016; 54:128-35. [PMID: 26098693 DOI: 10.1165/rcmb.2014-0443oc] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Tachyphylaxis of the β2-adrenergic receptor limits the efficacy of bronchodilatory β2-agonists in respiratory disease. Cellular studies in airway smooth muscle (ASM) have shown that inflammatory mediators and infectious stimuli reduce β2-adrenergic responsiveness in a cyclo-oxygenase (COX)-2-mediated, prostaglandin E2 (PGE2)-dependant manner. Herein, we show that sphingosine 1-phosphate (S1P), a bioactive sphingolipid that plays an important role in pathophysiology of asthma, also induces β2-adrenergic receptor desensitization in bronchial ASM cells and exerts hyporesponsiveness to β2-agonists. We treated ASM cells with S1P (1 μM) for up to 24 hours and then examined the temporal kinetics of COX-2 mRNA expression, protein up-regulation, and PGE2 secretion. S1P significantly enhanced COX-2 expression and PGE2 secretion, and this was repressed by the selective COX-2 inhibitor celecoxib, the corticosteroid dexamethasone, or small interfering RNA (siRNA) knockdown of COX-2 expression. In combination with another proinflammatory mediator found elevated in asthmatic airways, the cytokine TNF-α, we observed that S1P-induced COX-2 mRNA expression and protein up-regulation and PGE2 secretion from ASM cells were significantly enhanced. Notably, S1P induced heterologous β2-adrenergic desensitization, as measured by inhibition of cyclic adenosine monophosphate production in response to the short-acting β2-agonist, salbutamol, and the long-acting β2-agonist, formoterol. Taken together, these data indicate that S1P represses β2-adrenergic activity in ASM cells by increasing COX-2-mediated PGE2 production, and suggest that this bioactive sphingolipid found elevated in asthma may contribute to β2-adrenergic desensitization.
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Affiliation(s)
- Nowshin N Rumzhum
- 1 Faculty of Pharmacy, University of Sydney, Sydney, New South Wales, Australia
| | - M Mostafizur Rahman
- 1 Faculty of Pharmacy, University of Sydney, Sydney, New South Wales, Australia
| | - Brian G Oliver
- 2 Woolcock Institute of Medical Research, University of Sydney, New South Wales, Australia; and.,3 School of Medical and Molecular Biosciences, University of Technology, Sydney, New South Wales, Australia
| | - Alaina J Ammit
- 1 Faculty of Pharmacy, University of Sydney, Sydney, New South Wales, Australia
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Abstract
Toll-like receptors (TLR), a family of pattern-recognition receptors (PRRs) stimulated by pathogen-associated molecular patterns (PAMPs), generate antigen-triggered innate and adaptive immune responses. Recent studies have indicated that several small, regulatory RNAs, called microRNAs (miRNas), are induced by TLR activation in immune cells and that many microRNAs can control the inflammatory process and response to infection by positively or negatively regulating TLR signaling. Among these miRNAs, aberrant microRNA-155 (miR-155) has been implicated in diverse immune processes including the pathogenesis of several autoimmune diseases and cancer. Here, we discuss the role of miR-155 in TLR-mediated and TLR-related immune system regulation. Furthermore, we present our current knowledge of the design, in vivo delivery strategies, and therapeutic efficacy of miR-155 inhibitors in various inflammatory disorders and cancer, including a protocol on the use of miRNA-155 inhibitors in experimental autoimmune encephalomyelitis (EAE).
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Affiliation(s)
- Lucien P Garo
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA, 02115, USA
| | - Gopal Murugaiyan
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA, 02115, USA.
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MicroRNA Expression Is Altered in an Ovalbumin-Induced Asthma Model and Targeting miR-155 with Antagomirs Reveals Cellular Specificity. PLoS One 2015; 10:e0144810. [PMID: 26693910 PMCID: PMC4691205 DOI: 10.1371/journal.pone.0144810] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 11/24/2015] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs are post-transcriptional regulators of gene expression that are differentially regulated during development and in inflammatory diseases. A role for miRNAs in allergic asthma is emerging and further investigation is required to determine whether they may serve as potential therapeutic targets. We profiled miRNA expression in murine lungs from an ovalbumin-induced allergic airways disease model, and compared expression to animals receiving dexamethasone treatment and non-allergic controls. Our analysis identified 29 miRNAs that were significantly altered during allergic inflammation. Target prediction analysis revealed novel genes with altered expression in allergic airways disease and suggests synergistic miRNA regulation of target mRNAs. To assess the impacts of one induced miRNA on pathology, we targeted miR-155-5p using a specific antagomir. Antagomir administration successfully reduced miR-155-5p expression with high specificity, but failed to alter the disease phenotype. Interestingly, further investigation revealed that antagomir delivery has variable efficacy across different immune cell types, effectively targeting myeloid cell populations, but exhibiting poor uptake in lymphocytes. Our findings demonstrate that antagomir-based targeting of miRNA function in the lung is highly specific, but highlights cell-specificity as a key limitation to be considered for antagomir-based strategies as therapeutics.
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Deshpande DA, Dileepan M, Walseth TF, Subramanian S, Kannan MS. MicroRNA Regulation of Airway Inflammation and Airway Smooth Muscle Function: Relevance to Asthma. Drug Dev Res 2015; 76:286-95. [PMID: 26587803 DOI: 10.1002/ddr.21267] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Genetic and environmental factors contribute to the onset and severity of asthma. Molecular pathogenesis of asthma involves changes in gene expression by a variety of inflammatory mediators acting in autocrine and paracrine fashion on effector cells of the airways. Transcriptional regulation of gene expression in resident airway cells has been studied extensively. However, protein function in a target cell can be regulated at multiple levels starting from transcription followed by post-transcription, translation, and post-translation steps. In this context, small noncoding RNAs known as microRNAs (miRNAs) have evolved as one of the key regulators of gene expression post-transcriptionally. Most importantly, miRNA expression is dynamic in nature and can be regulated by a variety of external stimuli. Altered expression of individual or a group of miRNAs is thought to contribute to human diseases. Recent studies have implicated differential expression of miRNAs in the lungs during inflammation. Most importantly, advanced biochemical and molecular tools could be used to manipulate miRNA expression thereby effecting functional changes in target cells and organ systems. This review summarizes the current understanding of miRNA in the regulation of airway function in health and disease, and highlights the potential clinical utility of mRNAs as biomarkers of airway diseases and as potential therapeutic targets.
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Affiliation(s)
- D A Deshpande
- Department of Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - M Dileepan
- Department of Veterinary and Biomedical Sciences, University of Minnesota, MN, USA
| | - T F Walseth
- Department of Pharmacology, University of Minnesota, MN, USA
| | - S Subramanian
- Department of Surgery, University of Minnesota, MN, USA
| | - M S Kannan
- Department of Veterinary and Biomedical Sciences, University of Minnesota, MN, USA
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Abstract
Preclinical Research MicroRNA (miR)-155 and cyclooxygenase (COX)-2 are both elevated in numerous cancers including colorectal cancer. MiR-155 enhances COX-2 expression and is an established regulator of epithelial-mesenchymal transition and inflammation. Inhibition of miR-155 or COX-2 exhibit similar negative effects on tumorigenicity. Thus, it is hypothesized that miR-155 may be a promising target for antagonizing COX-2 expression in colorectal and other cancers.
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Affiliation(s)
- Brian S Comer
- Department of Cellular and Integrative Physiology, Indiana University, Indianapolis, IN, USA
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Alexandrova E, Miglino N, Hashim A, Nassa G, Stellato C, Tamm M, Baty F, Brutsche M, Weisz A, Borger P. Small RNA profiling reveals deregulated phosphatase and tensin homolog (PTEN)/phosphoinositide 3-kinase (PI3K)/Akt pathway in bronchial smooth muscle cells from asthmatic patients. J Allergy Clin Immunol 2015; 137:58-67. [PMID: 26148798 DOI: 10.1016/j.jaci.2015.05.031] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 05/20/2015] [Accepted: 05/26/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND Aberrant expression of small noncoding RNAs (sncRNAs), microRNAs (miRNAs) and PIWI-interacting RNAs (piRNAs) in particular, define several pathologic processes. Asthma is characterized by airway hyperreactivity, chronic inflammation, and airway wall remodeling. Asthma-specific miRNA profiles were reported for bronchial epithelial cells, whereas sncRNA expression in asthmatic bronchial smooth muscle (BSM) cells is almost completely unexplored. OBJECTIVE We sought to determine whether the primary BSM sncRNA expression profile is altered in asthmatic patients and identify targets of differentially expressed sncRNAs. METHODS Small RNA sequencing was used for sncRNA profiling in BSM cells (from 8 asthmatic and 6 nonasthmatic subjects). sncRNA identification and differential expression analysis was performed with iMir software. Experimentally validated miRNA targets were identified by using Ingenuity Pathway Analysis, and putative piRNA targets were identified by using miRanda software. RESULTS BSM cells from asthmatic patients showed abnormal expression of 32 sncRNAs (26 miRNAs, 5 piRNAs, and 1 small nucleolar RNA). Target prediction for deregulated miRNAs and piRNAs revealed experimentally validated and predicted mRNA targets expressed in the BSM cells. Thirty-eight of these mRNAs represent major targets for deregulated miRNAs and might play important roles in the pathophysiology of asthma. Interestingly, 6 of these mRNAs were previously associated with asthma, considered as novel therapeutic targets for treatment of this disease, or both. Signaling pathway analysis revealed involvement of 38 miRNA-targeted mRNAs in increased cell proliferation through phosphatase and tensin homolog and phosphoinositide 3-kinase/Akt signaling pathways. CONCLUSIONS BSM cells of asthmatic patients are characterized by aberrant sncRNA expression that recapitulates multiple pathologic phenotypes of these cells.
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Affiliation(s)
- Elena Alexandrova
- Laboratory of Molecular Medicine and Genomics, Department of Medicine and Surgery, University of Salerno, Baronissi, Italy; Genomix4Life Srl, Campus of Medicine, University of Salerno, Baronissi, Italy
| | - Nicola Miglino
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Adnan Hashim
- Laboratory of Molecular Medicine and Genomics, Department of Medicine and Surgery, University of Salerno, Baronissi, Italy
| | - Giovanni Nassa
- Laboratory of Molecular Medicine and Genomics, Department of Medicine and Surgery, University of Salerno, Baronissi, Italy
| | - Claudia Stellato
- Laboratory of Molecular Medicine and Genomics, Department of Medicine and Surgery, University of Salerno, Baronissi, Italy
| | - Michael Tamm
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Florent Baty
- Division of Molecular Pathology and Medical Genomics, Kantonsspital St Gallen, St Gallen, Switzerland
| | - Martin Brutsche
- Division of Molecular Pathology and Medical Genomics, Kantonsspital St Gallen, St Gallen, Switzerland
| | - Alessandro Weisz
- Laboratory of Molecular Medicine and Genomics, Department of Medicine and Surgery, University of Salerno, Baronissi, Italy; Molecular Pathology and Medical Genomics Unit, "SS. Giovanni di Dio e Ruggi d'Aragona-Schuola Medica Salernitana" University Hospital, Salerno, Italy.
| | - Pieter Borger
- Department of Biomedicine, University of Basel, Basel, Switzerland.
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Deacon K, Knox AJ. Human airway smooth muscle cells secrete amphiregulin via bradykinin/COX-2/PGE2, inducing COX-2, CXCL8, and VEGF expression in airway epithelial cells. Am J Physiol Lung Cell Mol Physiol 2015; 309:L237-49. [PMID: 26047642 DOI: 10.1152/ajplung.00390.2014] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 06/02/2015] [Indexed: 12/14/2022] Open
Abstract
Human airway smooth muscle cells (HASMC) contribute to asthma pathophysiology through an increased smooth muscle mass and elevated cytokine/chemokine output. Little is known about how HASMC and the airway epithelium interact to regulate chronic airway inflammation and remodeling. Amphiregulin is a member of the family of epidermal growth factor receptor (EGFR) agonists with cell growth and proinflammatory roles and increased expression in the lungs of asthma patients. Here we show that bradykinin (BK) stimulation of HASMC increases amphiregulin secretion in a mechanism dependent on BK-induced COX-2 expression, increased PGE2 output, and the stimulation of HASMC EP2 and EP4 receptors. Conditioned medium from BK treated HASMC induced CXCL8, VEGF, and COX-2 mRNA and protein accumulation in airway epithelial cells, which were blocked by anti-amphiregulin antibodies and amphiregulin siRNA, suggesting a paracrine effect of HASMC-derived amphiregulin on airway epithelial cells. Consistent with this, recombinant amphiregulin induced CXCL8, VEGF, and COX-2 in airway epithelial cells. Finally, we found that conditioned media from amphiregulin-stimulated airway epithelial cells induced amphiregulin expression in HASMC and that this was dependent on airway epithelial cell COX-2 activity. Our study provides evidence of a dynamic axis of interaction between HASMC and epithelial cells that amplifies CXCL8, VEGF, COX-2, and amphiregulin production.
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Affiliation(s)
- Karl Deacon
- Division of Respiratory Medicine, Centre for Respiratory Research, University of Nottingham
| | - Alan J Knox
- Division of Respiratory Medicine, Centre for Respiratory Research, University of Nottingham
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Comer BS, Ba M, Singer CA, Gerthoffer WT. Epigenetic targets for novel therapies of lung diseases. Pharmacol Ther 2014; 147:91-110. [PMID: 25448041 DOI: 10.1016/j.pharmthera.2014.11.006] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 11/06/2014] [Indexed: 12/13/2022]
Abstract
In spite of substantial advances in defining the immunobiology and function of structural cells in lung diseases there is still insufficient knowledge to develop fundamentally new classes of drugs to treat many lung diseases. For example, there is a compelling need for new therapeutic approaches to address severe persistent asthma that is insensitive to inhaled corticosteroids. Although the prevalence of steroid-resistant asthma is 5-10%, severe asthmatics require a disproportionate level of health care spending and constitute a majority of fatal asthma episodes. None of the established drug therapies including long-acting beta agonists or inhaled corticosteroids reverse established airway remodeling. Obstructive airways remodeling in patients with chronic obstructive pulmonary disease (COPD), restrictive remodeling in idiopathic pulmonary fibrosis (IPF) and occlusive vascular remodeling in pulmonary hypertension are similarly unresponsive to current drug therapy. Therefore, drugs are needed to achieve long-acting suppression and reversal of pathological airway and vascular remodeling. Novel drug classes are emerging from advances in epigenetics. Novel mechanisms are emerging by which cells adapt to environmental cues, which include changes in DNA methylation, histone modifications and regulation of transcription and translation by noncoding RNAs. In this review we will summarize current epigenetic approaches being applied to preclinical drug development addressing important therapeutic challenges in lung diseases. These challenges are being addressed by advances in lung delivery of oligonucleotides and small molecules that modify the histone code, DNA methylation patterns and miRNA function.
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Affiliation(s)
- Brian S Comer
- Department of Biochemistry and Molecular Biology, University of South Alabama, Mobile, AL, 36688, USA
| | - Mariam Ba
- Department of Pharmacology, University of Nevada School of Medicine, Reno, NV 89557, USA
| | - Cherie A Singer
- Department of Pharmacology, University of Nevada School of Medicine, Reno, NV 89557, USA
| | - William T Gerthoffer
- Department of Biochemistry and Molecular Biology, University of South Alabama, Mobile, AL, 36688, USA.
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Johar D, Siragam V, Mahood TH, Keijzer R. New insights into lung development and diseases: the role of microRNAs. Biochem Cell Biol 2014; 93:139-48. [PMID: 25563747 DOI: 10.1139/bcb-2014-0103] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
MicroRNAs (miRNAs) are short endogenous noncoding RNA molecules (∼ 22 nucleotides) that can regulate gene expression at the post-transcription level. Research interest in the role of miRNAs in lung biology is emerging. MiRNAs have been implicated in a range of processes such as development, homeostasis, and inflammatory diseases in lung tissues and are capable of inducing differentiation, morphogenesis, and apoptosis. In recent years, several studies have reported that miRNAs are differentially regulated in lung development and lung diseases in response to epigenetic changes, providing new insights for their versatile role in various physiological and pathological processes in the lung. In this review, we discuss the contribution of miRNAs to lung development and diseases and possible future implications in the field of lung biology.
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Affiliation(s)
- Dina Johar
- Departments of Surgery, Division of Pediatric Surgery, Pediatrics & Child Health and Physiology (adjunct), University of Manitoba and Biology of Breathing Theme, Manitoba Institute of Child Health, Winnipeg, Manitoba R3E 3P4, Canada
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