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Divilov K, Wang X, Swisher AE, Yeoman PC, Rintoul M, Fleener GB, Schoolfield B, Langdon C, Jin L. Ostreid herpesvirus 1 latent infection and reactivation in adult Pacific oysters, Crassostrea gigas. Virus Res 2024; 339:199245. [PMID: 37839558 PMCID: PMC10613911 DOI: 10.1016/j.virusres.2023.199245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/11/2023] [Accepted: 10/12/2023] [Indexed: 10/17/2023]
Abstract
Ostreid herpesvirus 1 (OsHV-1) is one of the most economically important pathogens of Pacific oysters. Understanding the pathogenesis of this virus is critical to developing tools to control outbreaks on shellfish farms. OsHV-1 is genetically related to vertebrate herpesviruses, which have a lytic and a latent stage, with the latent stage capable of being reactivated to the lytic stage. Here, OsHV-1 latency in Pacific oysters was investigated in experimentally and naturally infected oysters. Lytic infection in one-year-old oysters injected with the Tomales Bay strain of OsHV-1 was detectable between 1 and 4 days post-injection (dpi) but was not detectable after 5 dpi. The injected oysters shed 1 × 102 to 1 × 104 DNA copies/ml into the water during the 4-day acute phase. Lytic shedding was not detectable in two-year-old oysters injected similarly with the same strain of OsHV-1; however, the OsHV-1 genome was detectable by qPCR in the adductor muscle, gill, mantle, and hemocytes within the first 3 dpi, after which it became undetectable. No OsHV-1 was detectable in the adductor muscle, gill, or mantle from experimentally infected oysters on days 15 and 21 post-injection or from oysters sampled 9 months after surviving an OsHV-1 mortality event; however, OsHV-1 DNA could be detected in hemocytes of both experimentally infected oysters at 21 dpi and naturally infected oysters using nested PCR. In addition, lytic viral gene transcription was detectable in hemocytes of experimentally infected oysters between 1 and 21 dpi and in hemocytes of naturally infected oysters. Furthermore, OsHV-1 reactivation from latency was induced in experimentally infected oysters at 21 dpi and in naturally infected oysters 12 months after an OsHV-1 outbreak.
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Affiliation(s)
- Konstantin Divilov
- Department of Fisheries, Wildlife, and Conservation Sciences, Coastal Oregon Marine Experiment Station, Oregon State University, Hatfield Marine Science Center, Newport, OR 97365, USA
| | - Xisheng Wang
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA
| | - Alexandra E Swisher
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA
| | - Peyton C Yeoman
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA
| | | | | | - Blaine Schoolfield
- Department of Fisheries, Wildlife, and Conservation Sciences, Coastal Oregon Marine Experiment Station, Oregon State University, Hatfield Marine Science Center, Newport, OR 97365, USA
| | - Chris Langdon
- Department of Fisheries, Wildlife, and Conservation Sciences, Coastal Oregon Marine Experiment Station, Oregon State University, Hatfield Marine Science Center, Newport, OR 97365, USA
| | - Ling Jin
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA.
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2
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Gilyazova I, Asadullina D, Kagirova E, Sikka R, Mustafin A, Ivanova E, Bakhtiyarova K, Gilyazova G, Gupta S, Khusnutdinova E, Gupta H, Pavlov V. MiRNA-146a-A Key Player in Immunity and Diseases. Int J Mol Sci 2023; 24:12767. [PMID: 37628949 PMCID: PMC10454149 DOI: 10.3390/ijms241612767] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/09/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
miRNA-146a, a single-stranded, non-coding RNA molecule, has emerged as a valuable diagnostic and prognostic biomarker for numerous pathological conditions. Its primary function lies in regulating inflammatory processes, haemopoiesis, allergic responses, and other key aspects of the innate immune system. Several studies have indicated that polymorphisms in miRNA-146a can influence the pathogenesis of various human diseases, including autoimmune disorders and cancer. One of the key mechanisms by which miRNA-146a exerts its effects is by controlling the expression of certain proteins involved in critical pathways. It can modulate the activity of interleukin-1 receptor-associated kinase, IRAK1, IRAK2 adaptor proteins, and tumour necrosis factor (TNF) targeting protein receptor 6, which is a regulator of the TNF signalling pathway. In addition, miRNA-146a affects gene expression through multiple signalling pathways, such as TNF, NF-κB and MEK-1/2, and JNK-1/2. Studies have been carried out to determine the effect of miRNA-146a on cancer pathogenesis, revealing its involvement in the synthesis of stem cells, which contributes to tumourigenesis. In this review, we focus on recent discoveries that highlight the significant role played by miRNA-146a in regulating various defence mechanisms and oncogenesis. The aim of this review article is to systematically examine miRNA-146a's impact on the control of signalling pathways involved in oncopathology, immune system development, and the corresponding response to therapy.
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Affiliation(s)
- Irina Gilyazova
- Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, Institute of Biochemistry and Genetics, 450054 Ufa, Russia (E.K.)
| | - Dilara Asadullina
- Institute of Urology and Clinical Oncology, Department of Medical Genetics and Fundamental Medicine, Bashkir State Medical University, 450008 Ufa, Russia (A.M.); (G.G.)
| | - Evelina Kagirova
- Institute of Urology and Clinical Oncology, Department of Medical Genetics and Fundamental Medicine, Bashkir State Medical University, 450008 Ufa, Russia (A.M.); (G.G.)
| | - Ruhi Sikka
- Department of Biotechnology, Institute of Applied Sciences and Humanities, GLA University, Mathura 281406, India
| | - Artur Mustafin
- Institute of Urology and Clinical Oncology, Department of Medical Genetics and Fundamental Medicine, Bashkir State Medical University, 450008 Ufa, Russia (A.M.); (G.G.)
| | - Elizaveta Ivanova
- Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, Institute of Biochemistry and Genetics, 450054 Ufa, Russia (E.K.)
| | - Ksenia Bakhtiyarova
- Institute of Urology and Clinical Oncology, Department of Medical Genetics and Fundamental Medicine, Bashkir State Medical University, 450008 Ufa, Russia (A.M.); (G.G.)
| | - Gulshat Gilyazova
- Institute of Urology and Clinical Oncology, Department of Medical Genetics and Fundamental Medicine, Bashkir State Medical University, 450008 Ufa, Russia (A.M.); (G.G.)
| | - Saurabh Gupta
- Department of Biotechnology, Institute of Applied Sciences and Humanities, GLA University, Mathura 281406, India
| | - Elza Khusnutdinova
- Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, Institute of Biochemistry and Genetics, 450054 Ufa, Russia (E.K.)
- Institute of Urology and Clinical Oncology, Department of Medical Genetics and Fundamental Medicine, Bashkir State Medical University, 450008 Ufa, Russia (A.M.); (G.G.)
| | - Himanshu Gupta
- Department of Biotechnology, Institute of Applied Sciences and Humanities, GLA University, Mathura 281406, India
| | - Valentin Pavlov
- Institute of Urology and Clinical Oncology, Department of Medical Genetics and Fundamental Medicine, Bashkir State Medical University, 450008 Ufa, Russia (A.M.); (G.G.)
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3
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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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4
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Furci F, Allegra A, Tonacci A, Isola S, Senna G, Pioggia G, Gangemi S. Air Pollution and microRNAs: The Role of Association in Airway Inflammation. Life (Basel) 2023; 13:1375. [PMID: 37374157 DOI: 10.3390/life13061375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/29/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
Air pollution exposure plays a key role in the alteration of gene expression profiles, which can be regulated by microRNAs, inducing the development of various diseases. Moreover, there is also evidence of sensitivity of miRNAs to environmental factors, including tobacco smoke. Various diseases are related to specific microRNA signatures, suggesting their potential role in pathophysiological processes; considering their association with environmental pollutants, they could become novel biomarkers of exposure. Therefore, the aim of the present work is to analyse data reported in the literature on the role of environmental stressors on microRNA alterations and, in particular, to identify specific alterations that might be related to the development of airway diseases so as to propose future preventive, diagnostic, and therapeutic strategies.
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Affiliation(s)
- Fabiana Furci
- Allergy Unit and Asthma Center, Verona University Hospital, 37134 Verona, Italy
| | - Alessandro Allegra
- Division of Hematology, Department of Human Pathology in Adulthood and Childhood "Gaetano Barresi", University of Messina, 98124 Messina, Italy
| | - Alessandro Tonacci
- Clinical Physiology Institute, National Research Council of Italy (IFC-CNR), 56124 Pisa, Italy
| | - Stefania Isola
- School and Operative Unit of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98124 Messina, Italy
| | - Gianenrico Senna
- Allergy Unit and Asthma Center, Verona University Hospital, 37134 Verona, Italy
- Department of Medicine, Verona University Hospital, 37134 Verona, Italy
| | - Giovanni Pioggia
- Institute for Biomedical Research and Innovation (IRIB), National Research Council of Italy (CNR), 98164 Messina, Italy
| | - Sebastiano Gangemi
- School and Operative Unit of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98124 Messina, Italy
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5
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Ghaffari M, Razi S, Zalpoor H, Nabi-Afjadi M, Mohebichamkhorami F, Zali H. Association of MicroRNA-146a with Type 1 and 2 Diabetes and their Related Complications. J Diabetes Res 2023; 2023:2587104. [PMID: 36911496 PMCID: PMC10005876 DOI: 10.1155/2023/2587104] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 01/17/2023] [Accepted: 02/04/2023] [Indexed: 03/06/2023] Open
Abstract
Most medical investigations have found a reduced blood level of miR-146a in type 2 diabetes (T2D) patients, suggesting an important role for miR-146a (microRNA-146a) in the etiology of diabetes mellitus (DM) and its consequences. Furthermore, injection of miR-146a mimic has been confirmed to alleviate diabetes mellitus in diabetic animal models. In this line, deregulation of miR-146a expression has been linked to the progression of nephropathy, neuropathy, wound healing, olfactory dysfunction, cardiovascular disorders, and retinopathy in diabetic patients. In this review, besides a comprehensive review of the function of miR-146a in DM, we discussed new findings on type 1 (T1MD) and type 2 (T2DM) diabetes mellitus, highlighting the discrepancies between clinical and preclinical investigations and elucidating the biological pathways regulated through miR-146a in DM-affected tissues.
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Affiliation(s)
- Mahyar Ghaffari
- Department of Biology, Parand Branch, Islamic Azad University, Parand, Iran
| | - Sara Razi
- Vira Pioneers of Modern Science (VIPOMS), Tehran, Iran
| | - Hamidreza Zalpoor
- Shiraz Neuroscience Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Network of Immunity in Infection, Malignancy & Autoimmunity (NIIMA), Universal Scientific Education & Research Network (USERN), Tehran, Iran
| | - Mohsen Nabi-Afjadi
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | | | - Hakimeh Zali
- Proteomics Research Center, Shahid Beheshti University of Medical Science, Tehram, Iran
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6
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Yasuda S, Horinaka M, Iizumi Y, Goi W, Sukeno M, Sakai T. Oridonin inhibits SASP by blocking p38 and NF-κB pathways in senescent cells. Biochem Biophys Res Commun 2021; 590:55-62. [PMID: 34971958 DOI: 10.1016/j.bbrc.2021.12.098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 12/25/2021] [Indexed: 02/07/2023]
Abstract
Cellular senescence is a state of irreversible cell growth arrest that functions as a biological defense mechanism against severe DNA damage. Senescent cells with DNA damage produce pro-inflammatory cytokines, such as IL-6 and IL-8, and this phenomenon is called the senescence-associated secretory phenotype (SASP). SASP factors have been implicated in various disorders, including cancer. We performed a screening assay and identified oridonin as a candidate SASP inhibitor. Oridonin is an active diterpenoid that is isolated from Isodon plants and has been reported to exhibit anti-inflammatory, antibacterial, antioxidant, and antitumor activities. It reduced the secretion of IL-6 and IL-8 in senescent cells at the protein and mRNA levels. Oridonin also inhibited p65 subunit of NF-κB activity. However, oridonin did not affect SA β-gal activity and enhanced the expression of p21. The expression and phosphorylation of p38 were down-regulated by oridonin. The p38 inhibitor SB203580 inhibited the secretion of IL-8, slightly inhibited the secretion of IL-6, and did not affect NF-κB activity. Therefore, the NF-κB and p38 pathways may contribute to the inhibition of SASP by oridonin. Oridonin has potential as a therapeutic agent for SASP-related diseases.
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Affiliation(s)
- Shusuke Yasuda
- Department of Drug Discovery Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Mano Horinaka
- Department of Drug Discovery Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan.
| | - Yosuke Iizumi
- Department of Molecular-Targeting Prevention, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Wakana Goi
- Department of Molecular-Targeting Prevention, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Mamiko Sukeno
- Department of Drug Discovery Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Toshiyuki Sakai
- Department of Drug Discovery Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
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7
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Su Y, Guo H, Liu Q. Effects of mesenchymal stromal cell-derived extracellular vesicles in acute respiratory distress syndrome (ARDS): Current understanding and future perspectives. J Leukoc Biol 2021; 110:27-38. [PMID: 33955590 PMCID: PMC8242476 DOI: 10.1002/jlb.3mr0321-545rr] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 03/22/2021] [Accepted: 04/11/2021] [Indexed: 12/11/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a devastating and life‐threatening syndrome that results in high morbidity and mortality. Current pharmacologic treatments and mechanical ventilation have limited value in targeting the underlying pathophysiology of ARDS. Mesenchymal stromal cells (MSCs) have shown potent therapeutic advantages in experimental and clinical trials through direct cell‐to‐cell interaction and paracrine signaling. However, safety concerns and the indeterminate effects of MSCs have resulted in the investigation of MSC‐derived extracellular vesicles (MSC‐EVs) due to their low immunogenicity and tumorigenicity. Over the past decades, soluble proteins, microRNAs, and organelles packaged in EVs have been identified as efficacious molecules to orchestrate nearby immune responses, which attenuate acute lung injury by facilitating pulmonary epithelium repair, reducing acute inflammation, and restoring pulmonary vascular leakage. Even though MSC‐EVs possess similar bio‐functional effects to their parental cells, there remains existing barriers to employing this alternative from bench to bedside. Here, we summarize the current established research in respect of molecular mechanisms of MSC‐EV effects in ARDS and highlight the future challenges of MSC‐EVs for clinical application.
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Affiliation(s)
- Yue Su
- Department of Respiratory Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, P.R. China
| | - Haiyan Guo
- Department of Paediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, P.R. China
| | - Qinghua Liu
- Department of Respiratory Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, P.R. China
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8
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Marttila S, Rovio S, Mishra PP, Seppälä I, Lyytikäinen LP, Juonala M, Waldenberger M, Oksala N, Ala-Korpela M, Harville E, Hutri-Kähönen N, Kähönen M, Raitakari O, Lehtimäki T, Raitoharju E. Adulthood blood levels of hsa-miR-29b-3p associate with preterm birth and adult metabolic and cognitive health. Sci Rep 2021; 11:9203. [PMID: 33911114 PMCID: PMC8080838 DOI: 10.1038/s41598-021-88465-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 04/13/2021] [Indexed: 02/02/2023] Open
Abstract
Preterm birth (PTB) is associated with increased risk of type 2 diabetes and neurocognitive impairment later in life. We analyzed for the first time the associations of PTB with blood miRNA levels in adulthood. We also investigated the relationship of PTB associated miRNAs and adulthood phenotypes previously linked with premature birth. Blood MicroRNA profiling, genome-wide gene expression analysis, computer-based cognitive testing battery (CANTAB) and serum NMR metabolomics were performed for Young Finns Study subjects (aged 34-49 years, full-term n = 682, preterm n = 84). Preterm birth (vs. full-term) was associated with adulthood levels of hsa-miR-29b-3p in a fully adjusted regression model (p = 1.90 × 10-4, FDR = 0.046). The levels of hsa-miR-29b-3p were down-regulated in subjects with PTB with appropriate birthweight for gestational age (p = 0.002, fold change [FC] = - 1.20) and specifically in PTB subjects with small birthweight for gestational age (p = 0.095, FC = - 1.39) in comparison to individuals born full term. Hsa-miR-29b-3p levels correlated with the expressions of its target-mRNAs BCL11A and CS and the gene set analysis results indicated a target-mRNA driven association between hsa-miR-29b-3p levels and Alzheimer's disease, Parkinson's disease, Insulin signaling and Regulation of Actin Cytoskeleton pathway expression. The level of hsa-miR-29b-3p was directly associated with visual processing and sustained attention in CANTAB test and inversely associated with serum levels of VLDL subclass component and triglyceride levels. In conlcusion, adult blood levels of hsa-miR-29b-3p were lower in subjects born preterm. Hsa-miR-29b-3p associated with cognitive function and may be linked with adulthood morbidities in subjects born preterm, possibly through regulation of gene sets related to neurodegenerative diseases and insulin signaling as well as VLDL and triglyceride metabolism.
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Affiliation(s)
- Saara Marttila
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Gerontology Research Center, Tampere University, Tampere, Finland
| | - Suvi Rovio
- Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland
| | - Pashupati P Mishra
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Ilkka Seppälä
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Leo-Pekka Lyytikäinen
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Markus Juonala
- Division of Medicine, Turku University Hospital and Department of Medicine, University of Turku, Turku, Finland
| | - Melanie Waldenberger
- Research Unit Molecular Epidemiology, Helmholtz Zentrum Munich, German Research Center for Environmental Health, Munich, Germany
| | - Niku Oksala
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Vascular Centre, Tampere University Hospital, Tampere, Finland
| | - Mika Ala-Korpela
- Computational Medicine, Faculty of Medicine, University of Oulu, Oulu, Finland
- Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland
- Biocenter Oulu, University of Oulu, Oulu, Finland
- NMR Metabolomics Laboratory, School of Pharmacy, University of Eastern Finland, Kuopio, Finland
| | - Emily Harville
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA
| | - Nina Hutri-Kähönen
- Department of Pediatrics, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Mika Kähönen
- Department of Clinical Physiology, Tampere University Hospital, and Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Olli Raitakari
- Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland
- Department of Clinical Physiology and Nuclear Medicine, University of Turku and Turku University Hospital, Turku, Finland
| | - Terho Lehtimäki
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Emma Raitoharju
- Department of Clinical Chemistry, Pirkanmaa Hospital District, Fimlab Laboratories, and Finnish Cardiovascular Research Center, Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
- Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland.
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9
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Clinico-Pathological Importance of miR-146a in Lung Cancer. Diagnostics (Basel) 2021; 11:diagnostics11020274. [PMID: 33578944 PMCID: PMC7916675 DOI: 10.3390/diagnostics11020274] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/02/2021] [Accepted: 02/05/2021] [Indexed: 12/12/2022] Open
Abstract
Lung cancer is a well-known malignant tumor of the respiratory tract, which has caused a significant level of damage to human health in the 21st century. Micro-RNAs (miRNAs) are tiny, non-coding RNA stem-loop structures with a length of roughly 20–25 nucleotides that function as powerful modulators of mRNA and protein products of a gene. miRNAs may modulate many biological processes involving growth, differentiation, proliferation, and cell death and play a key role in the pathogenesis of various types of malignancies. Several accumulating pieces of evidence have proven that miRNA, especially miR-146a, are crucial modulators of innate immune response sequences. A novel and exciting cancer research field has involved miRNA for the detection and suppression of cancer. However, the actual mechanism which is adopted by these miRNA is still unclear. miRNAs have been used as a cancer-associated biomarker in several studies, suggesting their altered expression in various cancers compared to the normal cells. The amount of expression of miRNA can also be used to determine the stage of the disease, aiding in early detection. In breast, pancreatic, and hepatocellular carcinoma, and gastric cancer, cancer cell proliferation and metastasis has been suppressed by miR-146a. Changes in miR-146a expression levels have biomarker importance and possess a high potential as a therapeutic target in lung cancer. It retards epithelial-mesenchymal transition and promotes the therapeutic action of anticancer agents in lung cancer. Studies have also suggested that miR-146a affects gene expression through different signaling pathways viz. TNF-α, NF-κB and MEK-1/2, and JNK-1/2. Further research is required for understanding the molecular mechanisms of miR-146a in lung cancer. The potential role of miR-146a as a diagnostic marker of lung cancer must also be analyzed. This review summarizes the tumor-suppressing, anti-inflammatory, and antichemoresistive nature of miR-146a in lung cancer.
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10
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Elnady HG, Sherif LS, Kholoussi NM, Ali Azzam M, Foda AR, Helwa I, Sabry RN, Eissa E, Fahmy RF. Aberrant Expression of Immune-related MicroRNAs in Pediatric Patients with Asthma. INTERNATIONAL JOURNAL OF MOLECULAR AND CELLULAR MEDICINE 2021; 9:246-255. [PMID: 33688482 PMCID: PMC7936071 DOI: 10.22088/ijmcm.bums.9.4.246] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 01/04/2021] [Indexed: 12/21/2022]
Abstract
MicroRNAs (miRNAs) have been implicated as regulatory molecules that could play a considerable role in the pathogenesis of different diseases including asthma. This work aims at exploring the role of miR-146a and miR- 106b in the pathogenesis of asthma and their association with asthma severity, IgE, and inflammatory cytokines in asthmatic children. Thirty asthmatic children and twenty age-matched healthy children aged 4-17 years old were enrolled. Expression of plasma miR-146a and miR-106b was measured using quantitative real-time PCR. Plasma levels of interleukin-5 (IL-5) and interleukin-13 (IL-13) were assessed using ELISA. Lung functions were measured by Spirometry. MiR-146a and miR-106b were significantly over-expressed in asthmatic children compared to healthy children. A significant positive correlation between total IgE and both miR-146a and miR-106b was found while no significant correlation could be detected between these miRNAs and asthma severity in asthmatic children. Plasma levels of IL-5 and IL-13 were non-significantly higher in asthmatic children compared to healthy children, and there was no significant correlation between them and both miR-146a and miR-106b expressions in the asthmatic children. The aberrant expression of immune-related miRNAs (miR-146a and miR-106b) and inflammatory cytokines (IL-5 and IL-13) among asthmatic children suggest their probable role in asthma pathogenesis.
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Affiliation(s)
- Hala Gouda Elnady
- Department of Child Health, Medical Research Division, National Research Centre, Egypt
| | - Lobna Sayed Sherif
- Department of Child Health, Medical Research Division, National Research Centre, Egypt
| | - Naglaa Mohamed Kholoussi
- Immunogenetics Department, Human Genetics and Genome Research Division, National Resrearch Centre, Egypt
| | - Mona Ali Azzam
- Department of Pediatrics, Faculty of Medicine, Suez Canal University, Egypt; McMaster University, Hamilton, Canada
| | - Ahmed Rashad Foda
- Department of Child Health, Medical Research Division, National Research Centre, Egypt
| | - Iman Helwa
- Immunogenetics Department, Human Genetics and Genome Research Division, National Resrearch Centre, Egypt
| | - Rania Nabil Sabry
- Department of Child Health, Medical Research Division, National Research Centre, Egypt
| | - Eman Eissa
- Immunogenetics Department, Human Genetics and Genome Research Division, National Resrearch Centre, Egypt
| | - Reham Faisal Fahmy
- Department of Child Health, Medical Research Division, National Research Centre, Egypt
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11
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Xie L, Zhou Q, Chen X, Du X, Liu Z, Fei B, Hou J, Dai Y, She W. Elucidation of the Hdac2/Sp1/ miR-204-5p/ Bcl-2 axis as a modulator of cochlear apoptosis via in vivo/ in vitro models of acute hearing loss. MOLECULAR THERAPY. NUCLEIC ACIDS 2021; 23:1093-1109. [PMID: 33614251 PMCID: PMC7875768 DOI: 10.1016/j.omtn.2021.01.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 01/14/2021] [Indexed: 11/21/2022]
Abstract
We previously reported that dysregulation of histone deacetylase 2 (Hdac2) was associated with the prognosis of sudden sensorineural hearing loss. However, the underlying molecular mechanisms are poorly understood. In the present study, we developed an acute hearing loss animal model in guinea pigs by infusing lipopolysaccharides (LPS) into the cochlea and measured the expression of Hdac2 in the sensory epithelium. We observed that the level of Hdac2 was significantly decreased in the LPS-infused cochleae. The levels of apoptosis-inhibition genes Bcl-2 and Bcl-xl were also decreased in the cochlea and correlated positively with the levels of Hdac2. Caspase3 or TUNEL-positive spiral ganglion neurons, hair cells, and supporting cells were observed in the LPS-infused cochleae. These in vivo observations were recapitulated in cell culture experiments. Based on bioinformatics analysis, we found miR-204-5p was engaged in the regulation of Hdac2 on Bcl-2. Molecular mechanism experiments displayed that miR-204-5p could be regulated by Hdac2 through interacting with transcription factor Sp1. Taken together, these results indicated that the Hdac2/Sp1/miR-204-5p/Bcl-2 regulatory axis mediated apoptosis in the cochlea, providing potential insights into the progression of acute hearing loss. To our knowledge, the study describes a miRNA-related mechanism for Hdac2-mediated regulation in the cochlea for the first time.
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Affiliation(s)
- Lisheng Xie
- Department of Otolaryngology-Head and Neck Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing 210008, China
- Department of Otolaryngology, Children’s Hospital of Nanjing Medical University, Nanjing 210008, China
| | - Qiongqiong Zhou
- Department of Otolaryngology, Children’s Hospital of Nanjing Medical University, Nanjing 210008, China
| | - Xiaorui Chen
- Nanjing Drum Tower Hospital, Nanjing University of Chinese Medicine, Nanjing 210008, China
| | - Xiaoping Du
- Hough Ear Institute, Oklahoma City, OK 73112, USA
| | - Zhibiao Liu
- Department of Otolaryngology-Head and Neck Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing 210008, China
| | - Bing Fei
- Department of Otolaryngology-Head and Neck Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing 210008, China
| | - Jie Hou
- Department of Otolaryngology-Head and Neck Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing 210008, China
| | - Yanhong Dai
- Department of Otolaryngology-Head and Neck Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing 210008, China
- Correspondence: Yanhong Dai, Department of Otolaryngology-Head and Neck Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University: 321 Zhongshan Road, Nanjing 210008, China.
| | - Wandong She
- Department of Otolaryngology-Head and Neck Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing 210008, China
- Nanjing Drum Tower Hospital, Nanjing University of Chinese Medicine, Nanjing 210008, China
- Corresponding author Wandong She, Department of Otolaryngology-Head and Neck Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, 321 Zhongshan Road, Nanjing 210008, China.
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12
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Cen B, Lang JD, Du Y, Wei J, Xiong Y, Bradley N, Wang D, DuBois RN. Prostaglandin E 2 Induces miR675-5p to Promote Colorectal Tumor Metastasis via Modulation of p53 Expression. Gastroenterology 2020; 158:971-984.e10. [PMID: 31734182 PMCID: PMC7062589 DOI: 10.1053/j.gastro.2019.11.013] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 09/20/2019] [Accepted: 11/01/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND & AIMS Prostaglandin E2 (PGE2) promotes colorectal tumor formation and progression by unknown mechanisms. We sought to identify microRNAs (miRNAs) that might mediate the effects of PGE2 on colorectal cancer (CRC) development. METHODS We incubated LS174T colorectal cancer cells with PGE2 or without (control) and used miRNA-sequencing technology to compare expression patterns of miRNAs. We knocked down levels of specific miRNAs or proteins in cells using small interfering RNAs or genome editing. Cells were analyzed by immunoblot, quantitative polymerase chain reaction, chromosome immunoprecipitation, cell invasion, and luciferase reporter assays; we measured gene expression, binding activity, cell migration and invasion, and transcriptional activity of transcription factors. NOD-scidIL-2Rg-/- mice were given injections of LS174T cells, and growth of primary tumors and numbers of liver and lung metastases were quantified and analyzed by histology. We used public databases to identify correlations in gene expression pattern with patient outcomes. RESULTS We identified miRNA 675-5p (miR675-5p) as the miRNA most highly up-regulated by incubation of colorectal cancer cells with PGE2. PGE2 increased expression of miR675-5p by activating expression of Myc, via activation of protein kinase B, also known as (AKT), nuclear factor κB, and β-catenin. PGE2 increased the invasive activities of cultured CRC cells. LS174T cells incubated with PGE2 formed more liver and lung metastases in mice than control LS174T cells. We identified a 3' untranslated region in the TP53 messenger RNA that bound miR675-5p; binding resulted in loss of the p53 protein. Expression of miR675-5p or its precursor RNA, H19, correlated with expression of cyclooxygenase-1 and cyclooxygenase-2 and shorter survival times of patients with CRC. CONCLUSIONS We found that treatment of mice with PGE2 increased CRC cells invasive activity and ability to form liver and lung metastases. PGE2 down-regulates expression of p53 by increasing expression of miR675-5p, which binds to and prevents translation of TP53 messenger RNA. These findings provide insight into the mechanisms by which PGE2 promotes tumor development and progression. Strategies to target PGE2 might be developed for treatment of CRC.
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Affiliation(s)
- Bo Cen
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, Charleston, SC 29425
| | - Jessica D. Lang
- Biodesign Institute of Arizona State University, Tempe, AZ85287, and Integrated Cancer Genomics Division, Translational Genomics Research Institute (TGen), Phoenix, AZ 85004
| | - Yuchen Du
- Biodesign Institute of Arizona State University, Tempe, AZ85287 (current address: Department of Pediatrics-Oncology, Baylor College of Medicine, Houston, TX77030)
| | - Jie Wei
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, Charleston, SC 29425
| | - Ying Xiong
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, Charleston, SC 29425
| | - Norma Bradley
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, Charleston, SC 29425
| | - Dingzhi Wang
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, Charleston, SC 29425
| | - Raymond N. DuBois
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, Charleston, SC 29425.,Department of Research and Division of Gastroenterology, Mayo Clinic, Scottsdale, AZ 85259,Correspondence to: Raymond N. DuBois, MD. Ph.D., 601 Clinical Science Building, 96 Jonathan Lucas Street, Suite 601, Charleston, SC 29425, Tel: 843-792-2842 and Fax: 843-792-2967,
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13
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Osei ET, Brandsma CA, Timens W, Heijink IH, Hackett TL. Current perspectives on the role of interleukin-1 signalling in the pathogenesis of asthma and COPD. Eur Respir J 2020; 55:13993003.00563-2019. [PMID: 31727692 DOI: 10.1183/13993003.00563-2019] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 11/05/2019] [Indexed: 12/12/2022]
Abstract
Asthma and chronic obstructive pulmonary disease (COPD) cause significant morbidity and mortality worldwide. In the context of disease pathogenesis, both asthma and COPD involve chronic inflammation of the lung and are characterised by the abnormal release of inflammatory cytokines, dysregulated immune cell activity and remodelling of the airways. To date, current treatments still only manage symptoms and do not reverse the primary disease processes. In recent work, interleukin (IL)-1α and IL-1β have been suggested to play important roles in both asthma and COPD. In this review, we summarise overwhelming pre-clinical evidence for dysregulated signalling of IL-1α and IL-1β contributing to disease pathogenesis and discuss the paradox of IL-1 therapeutic studies in asthma and COPD. This is particularly important given recent completed and ongoing clinical trials with IL-1 biologics that have had varying degrees of failure and success as therapeutics for disease modification in asthma and COPD.
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Affiliation(s)
- Emmanuel T Osei
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, Canada .,Dept of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - Corry-Anke Brandsma
- Dept of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Groningen Research Institute of Asthma and COPD (GRIAC), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Wim Timens
- Dept of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Groningen Research Institute of Asthma and COPD (GRIAC), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Irene H Heijink
- Dept of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Groningen Research Institute of Asthma and COPD (GRIAC), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Dept of Pulmonology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Tillie-Louise Hackett
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, Canada.,Dept of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada
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14
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Chao Y, Zhang L, Zhang X, Ma C, Chen Z. Expression of MiR-140 and MiR-199 in Synovia and its Correlation with the Progression of Knee Osteoarthritis. Med Sci Monit 2020; 26:e918174. [PMID: 31957742 PMCID: PMC6990666 DOI: 10.12659/msm.918174] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background The aim of this study was to explore the expression of miR-140 and miR-199 in synovia of patients with knee osteoarthritis (KOA) and its correlation with the progression of this disease. We used the Kellgren and Lawrence grading (KLG) system. Material/Methods There were 110 patients with early (KLG <2), middle (KLG=2) and late (KLG >2) stage KOA and 60 healthy individuals (control) included in this study. Results The relative expression levels of miR-140 (1.07±0.091) and miR-199 (1.03±0.110) in synovia of the control group were higher than those of KOA groups (0.511±0.130, 0.298±0.168) and the difference exhibited statistical significance (P<0.01). Expression of miR-140 in the middle and the late stage KOA groups (0.322±0.118 and 0.110±0.088 respectively) were 58.80% and 81.29% lower, respectively, compared to the early stage KOA group (0.588±0.172), which was significant (P<0.05). Expression of miR-199 in the middle and the late stage KOA groups (0.210±0.124 and 0.056±0.068 respectively) were 39.41% (P<0.05) and 83.72% (P<0.01) respectively lower than that in the early KOA group (0.344±0.147). The severity of OA was significantly negatively correlated with the expressions of miR-140 and miR-199 (r=−0.859, P<0.05; r=−0.724, P<0.001 respectively). Matrix metalloproteinase (MMP)-3 levels of the early stage, middle stage and late stage KOA groups were 1.320±0.118, 1.488±0.210, and 1.955±0.023 respectively; and IL-1β mRNA was 1.401±0.204, 1.522±0.210, and 1.889±0.217 respectively, which were obviously higher than those in the control group (1.020±0.085), (P<0.05). Conclusions Expression levels of miR-140 and miR-199 in synovia might act as an early diagnostic marker for KOA. These expression levels might also act as indicators of OA progression to some extent.
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Affiliation(s)
- Yu Chao
- Department of Orthopaedics, The First Affiliated Hospital of Xi'an Medical College (General Medical College of Xi'an Medical College), Xi'an, Shaanxi, China (mainland)
| | - Liwen Zhang
- Department of Orthopaedics, The First Affiliated Hospital of Xi'an Medical College (General Medical College of Xi'an Medical College), Xi'an, Shaanxi, China (mainland)
| | - Xiang Zhang
- Department of Orthopaedics, The First Affiliated Hospital of Xi'an Medical College (General Medical College of Xi'an Medical College), Xi'an, Shaanxi, China (mainland)
| | - Cong Ma
- Clinical Medicine, School of Medicine, Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Zhijun Chen
- Department of Orthopaedics, The First Affiliated Hospital of Xi'an Medical College (General Medical College of Xi'an Medical College), Xi'an, Shaanxi, China (mainland)
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15
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Kivihall A, Aab A, Soja J, Sładek K, Sanak M, Altraja A, Jakiela B, Bochenek G, Rebane A. Reduced expression of miR-146a in human bronchial epithelial cells alters neutrophil migration. Clin Transl Allergy 2019; 9:62. [PMID: 31798831 PMCID: PMC6880603 DOI: 10.1186/s13601-019-0301-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 11/18/2019] [Indexed: 12/19/2022] Open
Abstract
Background The role of miRNAs in the pathogenesis and determining the phenotypes of asthma is not fully elucidated. miR-146a has been previously shown to suppress inflammatory responses in different cells. In this study, we investigated the functions of miR-146a in human bronchial epithelial cells (HBECs) in association with neutrophilic, eosinophilic, and paucigranulocytic phenotypes of asthma. Methods Bronchial brushing specimens and brochial mucosal biopsy samples were collected from adult patients with asthma and from age- and gender-matched non-asthmatic individuals. The expression of miR-146a in bronchial brushing specimens, bronchial biopsy tissue sections or cultured primary bronchial epithelial cells was analyzed by RT-qPCR or by in situ hybridization. The expression of direct and indirect miR-146a target genes was determined by RT-qPCR or ELISA. The migration of neutrophils was studied by neutrophil chemotaxis assay and flow cytometry. For statistical analysis, unpaired two-way Student’s t test, one-way ANOVA or linear regression analysis were used. Results Reduced expression of miR-146a was found in bronchial brushing specimens from asthma patients as compared to non-asthmatics and irrespective of the phenotype of asthma. In the same samples, the neutrophil attracting chemokines IL-8 and CXCL1 showed increased expression in patients with neutrophilic asthma and increased IL-33 expression was found in patients with eosinophilic asthma. Linear regression analysis revealed a significant negative association between the expression of miR-146a in bronchial brushings and neutrophil cell counts in bronchoalveolar lavage fluid of patients with asthma. In bronchial biopsy specimens, the level of miR-146a was highest in the epithelium as determined with in situ hybridization. In primary conventional HBEC culture, the expression of miR-146a was induced in response to the stimulation with IL-17A, TNF-α, and IL-4. The mRNA expression and secretion of IL-8 and CXCL1 was inhibited in both stimulated and unstimulated HBECs transfected with miR-146a mimics. Supernatants from HBECs transfected with miR-146a had reduced capability of supporting neutrophil migration in neutrophil chemotaxis assay. Conclusion Our results suggest that decreased level of miR-146a in HBECs from patients with asthma may contribute to the development of neutrophilic phenotype of asthma.
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Affiliation(s)
- Anet Kivihall
- 1Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 14B, 50414 Tartu, Estonia
| | - Alar Aab
- 1Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 14B, 50414 Tartu, Estonia
| | - Jerzy Soja
- 2Department of Internal Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Krzysztof Sładek
- 2Department of Internal Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Marek Sanak
- 2Department of Internal Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Alan Altraja
- 3Department of Pulmonary Medicine, University of Tartu, Tartu, Estonia.,4Lung Clinic of Tartu University Hospital, Tartu, Estonia
| | - Bogdan Jakiela
- 2Department of Internal Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Grazyna Bochenek
- 2Department of Internal Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Ana Rebane
- 1Institute of Biomedicine and Translational Medicine, University of Tartu, Ravila 14B, 50414 Tartu, Estonia
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16
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Yang Z, Peng Y, Yang S. MicroRNA-146a regulates the transformation from liver fibrosis to cirrhosis in patients with hepatitis B via interleukin-6. Exp Ther Med 2019; 17:4670-4676. [PMID: 31086599 DOI: 10.3892/etm.2019.7490] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 10/08/2017] [Indexed: 12/13/2022] Open
Abstract
The aim of the present study was to measure the expression of microRNA (miR)-146a in liver tissues, peripheral blood mononuclear cells (PMBC) and serum from patients with Hepatitis B and either liver fibrosis or cirrhosis, as well as to determine the regulatory mechanism of miR-146a. A total of 36 patients with Hepatitis B and liver fibrosis and 25 patients with hepatitis B and liver cirrhosis admitted to Linyi People's Hospital (Shandong, China) between June 2012 and February 2016 were included in the present study. Reverse transcription-quantitative polymerase chain reaction was performed to determine the expression of miR-146a and interleukin (IL)-6 mRNA in the liver tissue, PBMCs and serum. Western blotting was used to assess the expression of IL-6 in liver tissues and PBMCs. An enzyme-linked immunosorbent assay was conducted to measure IL-6 levels in serum. To identify the direct interaction between IL-6 and miR-146a, a dual luciferase reporter assay was performed. IL-6 mRNA expression in liver tissues, PBMCs and serum from patients with liver cirrhosis was significantly higher than that from patients with liver fibrosis (P<0.05). Furthermore, IL-6 expression in liver tissues and PBMCs from patients with liver cirrhosis was enhanced and levels of IL-6 protein in the serum of patients with liver cirrhosis were significantly elevated compared with patients with liver fibrosis (P<0.05). By contrast, levels of miR-146a in liver tissues, PBMCs and serum from patients with liver cirrhosis were significantly downregulated (P<0.05) compared with patients with liver fibrosis. miR-146a regulated the expression of IL-6 by binding to its 3'-untranslated region. Thus, in the transformation from liver fibrosis to cirrhosis, the upregulation of IL-6 in liver tissues, PBMCs and serum may be associated with the downregulation of miR-146a. miR-146a directly targets IL-6, which may regulate the occurrence and immune responses of Hepatitis B.
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Affiliation(s)
- Zhaohui Yang
- Department of Infection, Linyi People's Hospital, Linyi, Shandong 276003, P.R. China
| | - Yulong Peng
- Department of Infection, Linyi People's Hospital, Linyi, Shandong 276003, P.R. China
| | - Suxian Yang
- Department of Infection, Linyi People's Hospital, Linyi, Shandong 276003, P.R. China
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17
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Hammad Mahmoud Hammad R, Hamed DHED, Eldosoky MAER, Ahmad AAES, Osman HM, Abd Elgalil HM, Mahmoud Hassan MM. Plasma microRNA-21, microRNA-146a and IL-13 expression in asthmatic children. Innate Immun 2019; 24:171-179. [PMID: 29635981 PMCID: PMC6852388 DOI: 10.1177/1753425918763521] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Childhood asthma represents a worldwide problem, involving genetic, immune
defense and environmental components. MicroRNAs (miRs) are non-coding,
single-stranded RNAs involved in immune regulation. The aim was to evaluate
clinical potential of plasma miR-21 and miR-146a involved in T helper
differentiation in childhood asthma and non-asthmatic controls. Group 1
consisted of 27 asthmatic children receiving inhaled corticosteroids (ICSs),
which was compared to group 2 with 21 healthy control children. All patients
were assessed by pulmonary function tests. miR-21 and miR-146a expression levels
were determined by real-time quantitative PCR, and IL-13 was measured using
ELISA. Group 1 showed significant up-regulation of plasma miR-21 and miR-146a
levels with mean values 42.6-fold and 4.7-fold higher than average expression,
respectively, in group 2. miR-21 levels positively correlated with IL-13 levels
and eosinophil percentage, while miR-146a only correlated to eosinophil
percentage. There was a linear association between each of miR-21 and miR-146a
expression and FEV1 (forced expiratory volume in the first second), miR-21 and
miR-146a are up-regulated in asthmatic children. miR-21 served as a better
asthma biomarker. Association between both markers and FEV1 points to their role
in determining asthma outcome following ICS treatment. miR-21 and miR-146a play
a role in eosinophilic endotypic classification of asthma.
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Affiliation(s)
| | - Dina Hossam El Dine Hamed
- 2 Pediatric Department, Pediatric Allergy and Pulmonology Unit, Children's Hospital, Cairo University, Egypt
| | | | | | - Hanan Mohsen Osman
- 2 Pediatric Department, Pediatric Allergy and Pulmonology Unit, Children's Hospital, Cairo University, Egypt
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18
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Akhavanakbari G, Babapour B, Alipour MR, Keyhanmanesh R, Ahmadi M, Aslani MR. Effect of high fat diet on NF-кB microRNA146a negative feedback loop in ovalbumin-sensitized rats. Biofactors 2019; 45:75-84. [PMID: 30521085 DOI: 10.1002/biof.1466] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 08/23/2018] [Accepted: 09/10/2018] [Indexed: 02/01/2023]
Abstract
The present study aimed to investigate the role of microRNA-146a and its adapter proteins [interleukin-1 receptor-associated kinase 1 (IRAK1) and tumor necrosis factor (TNF) receptor-associated factor 6 (TRAF6)] in the pathogenesis of ovalbumin (OVA)-sensitized rats in association with the diet-induced obesity condition. Twenty male Wistar rats were divided into four groups: control with normal diet (ND), OVA-sensitized with normal diet (S + ND), high-fat diet (HFD), and OVA-sensitized with high-fat diet (S + HFD). All the animals were fed for 8 weeks with standard pelts or high-fat diet, and were then sensitized and challenged with OVA or saline for another 4 weeks. The tracheal responsiveness to methacholine, serum protein levels, and lipid profile levels was measured by the ELISA method. Moreover, the gene expression level of microRNA-146a (miR-146a) was measured in the lung tissue of the rats using the real-time PCR method. Maximum response to methacholin increased in the S + HFD group in compared with ND, S + ND, and HFD groups (P < 0.05 to P < 0.001). Moreover, in the S + HFD group the mRNA expression levels of miRNA-146a increased in the lung tissue (P < 0.001). In addition, the protein analysis results showed that IRAK1, TRAF6, NF-kB, and IL-1β protein levels were high in the S + HFD group compared to the ND and HFD groups; however, in compared with the S + ND group, only the IL-1β protein level was higher in the S + HFD group (P < 0.05). These results suggest that a defect in the NF-kB-miR-146a negative feedback loop may be involved in the pathogenesis of obesity associated with OVA-sensitized condition. © 2018 BioFactors, 45(1):75-84, 2019.
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Affiliation(s)
- Godrat Akhavanakbari
- Department of Anesthesiology, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Behzad Babapour
- Department of Cardiology, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | | | - Rana Keyhanmanesh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Ahmadi
- Faculty of Medicine, Department of Physiology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Reza Aslani
- Lung Inflammatory Diseases Research Center, Department of Physiology, Ardabil University of Medical Sciences, Ardabil, Iran
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Han S, Ma C, Bao L, Lv L, Huang M. miR-146a Mimics Attenuate Allergic Airway Inflammation by Impacted Group 2 Innate Lymphoid Cells in an Ovalbumin-Induced Asthma Mouse Model. Int Arch Allergy Immunol 2018; 177:302-310. [PMID: 30134242 DOI: 10.1159/000491438] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 06/21/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The prevalence of allergic asthma has increased dramatically. Previous studies have found that the microRNA 146a (miR-146a) expression in asthma inhibits cell proliferation and promotes apoptosis of bronchial smooth muscle cells. We aimed to investigate the effect of miR-146a mimics on ovalbumin (OVA)-induced asthma in a mouse model. METHODS Inflammatory cell infiltration in bronchoalveolar lavage fluid (BALF) was measured by flow cytometry. Levels of OVA-specific immunoglobulin E (IgE) in serum and cytokines in BALF were examined by enzyme-linked immunosorbent assay. For monitoring the airway, the Penh value (% baseline) was measured using a whole-body plethysmograph. RESULTS In OVA-induced asthmatic mice, miR-146a significantly suppressed the infiltration of inflammatory cells in BALF and decreased the levels of OVA-specific IgE and T helper 2 cell type cytokines. In addition, miR-146a inhibited the OVA-induced airway hyperresponsiveness and the group 2 innate lymphoid cell responses. Moreover, the effects of miR-146a mimics were dependent on interleukin 33 stimulation. CONCLUSIONS Our results suggest that miR-146a mimics might serve as an attractive candidate for further preclinical studies as an anti-inflammatory treatment of asthma.
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Affiliation(s)
- Shuguang Han
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Department of Respiratory Medicine, the Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Chenhui Ma
- Department of Respiratory Medicine, the Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Liang Bao
- Department of Respiratory Medicine, the Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Lei Lv
- Department of Respiratory Medicine, the Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Mao Huang
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing,
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Association of the miR-196a2, miR-146a, and miR-499 Polymorphisms with Asthma Phenotypes in a Korean Population. Mol Diagn Ther 2018; 21:547-554. [PMID: 28527151 DOI: 10.1007/s40291-017-0280-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND MicroRNAs (miRNAs) modulate expressions of inflammatory genes, thereby regulating inflammatory responses. Single nucleotide polymorphisms (SNPs) in miRNAs could affect their efficiency in binding to messenger RNAs (mRNAs). OBJECTIVE We investigated the associations of miRNA SNPs with asthma phenotypes. miR-196a2 (rs11614913 T>C), miR-146a (rs2910164 C>G), and miR-499 (rs3746444 A>G) were genotyped in 347 asthma patients and 172 normal healthy controls (NCs). RESULTS The CT/CC genotype of miR-196a2 rs11614913 was associated with eosinophilic asthma (p = 0.004) and a higher sputum eosinophil count compared with the TT genotype (p = 0.003). The CG/GG genotype of miR-146a rs2910164 tended to be associated with higher bronchial hyperresponsiveness to methacholine (PC20) compared with the CC genotype. The AG/GG genotype of miR-499 rs3746444 was associated with higher predicted values of forced expiratory volume in 1 s (%FEV1) compared with the AA genotype (p = 0.008). CONCLUSIONS Genetic polymorphisms in miR-196a2, miR-146a, and miR-499 could be potential biomarkers for asthma phenotypes and targets for asthma treatments in a Korean population.
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21
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Tahamtan A, Teymoori-Rad M, Nakstad B, Salimi V. Anti-Inflammatory MicroRNAs and Their Potential for Inflammatory Diseases Treatment. Front Immunol 2018; 9:1377. [PMID: 29988529 PMCID: PMC6026627 DOI: 10.3389/fimmu.2018.01377] [Citation(s) in RCA: 242] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 06/04/2018] [Indexed: 12/27/2022] Open
Abstract
Inflammation is a complicated biological and pathophysiological cascade of responses to infections and injuries, and inflammatory mechanisms are closely related to many diseases. The magnitude, the complicated network of pro- and anti-inflammatory factors, and the direction of the inflammatory response can impact on the development and progression of various disorders. The currently available treatment strategies often target the symptoms and not the causes of inflammatory disease and may often be ineffective. Since the onset and termination of inflammation are crucial to prevent tissue damage, a range of mechanisms has evolved in nature to regulate the process including negative and positive feedback loops. In this regard, microRNAs (miRNAs) have emerged as key gene regulators to control inflammation, and it is speculated that they are fine-tune signaling regulators to allow for proper resolution and prevent uncontrolled progress of inflammatory reactions. In this review, we discuss recent findings related to significant roles of miRNAs in immune regulation, especially the potential utility of these molecules as novel anti-inflammatory agents to treat inflammatory diseases. Furthermore, we discuss the possibilities of using miRNAs as drugs in the form of miRNA mimics or miRNA antagonists.
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Affiliation(s)
- Alireza Tahamtan
- Infectious Diseases Research Centre, Golestan University of Medical Sciences, Gorgan, Iran.,Department of Microbiology, School of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Majid Teymoori-Rad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Britt Nakstad
- Department of Pediatric and Adolescent Medicine, Akershus University Hospital, Lørenskog, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Vahid Salimi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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22
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Wu W, Li Y. Lung injury caused by paraquat poisoning results in increased interleukin-6 and decreased microRNA-146a levels. Exp Ther Med 2018; 16:406-412. [PMID: 29896267 DOI: 10.3892/etm.2018.6153] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Accepted: 01/03/2018] [Indexed: 12/29/2022] Open
Abstract
The aim of the present study was to investigate the expression of microRNA (miR)-146a in the pulmonary macrophages, peripheral blood mononuclear cells and serum of patients with lung injury caused by paraquat poisoning, as well as the underlying mechanism of its regulation in the disease. A total of 26 patients with lung injury caused by paraquat poisoning were included in the present study. In addition, 33 healthy subjects were included as the control group. The expression levels of interleukin (IL)-6 mRNA and miR-146a was determined by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Western blotting was used to measure IL-6 protein expression, while enzyme-linked immunosorbent assay was also performed to determine the secretion of IL-6 protein. A dual-luciferase reporter assay was conducted to examine whether IL-6 mRNA is a direct target of miR-146a. Patients with lung injury caused by paraquat poisoning exhibited higher IL-6 mRNA and protein levels as compared with those in healthy subjects. In addition, miR-146a expression in patients with paraquat poisoning-induced lung injury was significantly reduced in comparison with that in healthy subjects. Notably, the overexpression of miR-146a by mimic transfection downregulated the expression of IL-6 in pulmonary macrophages. The results of dual-luciferase reporter assay demonstrated that IL-6 mRNA was a direct target of miR-146a. Therefore, the present study demonstrated that increased expression of IL-6 in patients with lung injury caused by paraquat poisoning is associated with decreased expression of miR-146a. Furthermore, miR-146a may regulate the occurrence and immune response of lung injury caused by paraquat poisoning and this process is possibly achieved via IL-6, an important cytokine that mediates inflammation.
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Affiliation(s)
- Wei Wu
- Department of Respiratory Medicine, Affiliated Hospital of Jining Medical University, Jining, Shandong 272029, P.R. China
| | - Yong Li
- Emergency Department, Affiliated Hospital of Jining Medical University, Jining, Shandong 272029, P.R. China
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23
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Perry MM, Tildy B, Papi A, Casolari P, Caramori G, Rempel KL, Halayko AJ, Adcock I, Chung KF. The anti-proliferative and anti-inflammatory response of COPD airway smooth muscle cells to hydrogen sulfide. Respir Res 2018; 19:85. [PMID: 29743070 PMCID: PMC5944010 DOI: 10.1186/s12931-018-0788-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 04/23/2018] [Indexed: 11/30/2022] Open
Abstract
Backbround COPD is a common, highly debilitating disease of the airways, primarily caused by smoking. Chronic inflammation and structural remodelling are key pathological features of this disease caused, in part, by the aberrant function of airway smooth muscle (ASM). We have previously demonstrated that hydrogen sulfide (H2S) can inhibit ASM cell proliferation and CXCL8 release, from cells isolated from non-smokers. Methods We examined the effect of H2S upon ASM cells from COPD patients. ASM cells were isolated from non-smokers, smokers and patients with COPD (n = 9). Proliferation and cytokine release (IL-6 and CXCL8) of ASM was induced by FCS, and measured by bromodeoxyuridine incorporation and ELISA, respectively. Results Exposure of ASM to H2S donors inhibited FCS-induced proliferation and cytokine release, but was less effective upon COPD ASM cells compared to the non-smokers and smokers. The mRNA and protein expression of the enzymes responsible for endogenous H2S production (cystathionine-β-synthase [CBS] and 3-mercaptopyruvate sulphur transferase [MPST]) were inhibited by H2S donors. Finally, we report that exogenous H2S inhibited FCS-stimulated phosphorylation of ERK–1/2 and p38 mitogen activated protein kinases (MAPKs), in the non-smoker and smoker ASM cells, with little effect in COPD cells. Conclusions H2S production provides a novel mechanism for the repression of ASM proliferation and cytokine release. The ability of COPD ASM cells to respond to H2S is attenuated in COPD ASM cells despite the presence of the enzymes responsible for H2S production. Electronic supplementary material The online version of this article (10.1186/s12931-018-0788-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mark M Perry
- School of Pharmacy & Biomedical Sciences, University of Portsmouth, St. Michael's Building, White Swan Road, Portsmouth, PO1 2DT, UK.
| | - Bernadett Tildy
- Airways Disease, National Heart and Lung Institute, Imperial College, London & Royal Brompton NIHR Biomedical Research Unit, London, SW3 6LY, UK
| | - Alberto Papi
- Sezione di Medicina Interna e Cardiorespiratoria, Centro Interdipartimentale per lo Studio delle Malattie Infiammatorie delle Vie Aeree e Patologie Fumo-Correlate (CEMICEF, formerly termed Centro di Ricerca su Asma e BPCO), Università di Ferrara, Ferrara, Italy
| | - Paolo Casolari
- Sezione di Medicina Interna e Cardiorespiratoria, Centro Interdipartimentale per lo Studio delle Malattie Infiammatorie delle Vie Aeree e Patologie Fumo-Correlate (CEMICEF, formerly termed Centro di Ricerca su Asma e BPCO), Università di Ferrara, Ferrara, Italy
| | - Gaetano Caramori
- Unità Operativa Complessa di Pneumologia, Dipartimento di Scienze Biomediche, Odontoiatriche e delle Immagini Morfologiche e Funzionali (BIOMORF), Università degli Studi di Messina, Messina, Italy
| | - Karen Limbert Rempel
- Departments of Internal Medicine & Physiology, Respiratory Hospital, Sherbrook Street, Winnipeg, MB, R3A 1R9, Canada
| | - Andrew J Halayko
- Departments of Internal Medicine & Physiology, Respiratory Hospital, Sherbrook Street, Winnipeg, MB, R3A 1R9, Canada
| | - Ian Adcock
- Airways Disease, National Heart and Lung Institute, Imperial College, London & Royal Brompton NIHR Biomedical Research Unit, London, SW3 6LY, UK
| | - Kian Fan Chung
- Airways Disease, National Heart and Lung Institute, Imperial College, London & Royal Brompton NIHR Biomedical Research Unit, London, SW3 6LY, UK
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Piperigkou Z, Götte M, Theocharis AD, Karamanos NK. Insights into the key roles of epigenetics in matrix macromolecules-associated wound healing. Adv Drug Deliv Rev 2018; 129:16-36. [PMID: 29079535 DOI: 10.1016/j.addr.2017.10.008] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 10/14/2017] [Accepted: 10/20/2017] [Indexed: 02/08/2023]
Abstract
Extracellular matrix (ECM) is a dynamic network of macromolecules, playing a regulatory role in cell functions, tissue regeneration and remodeling. Wound healing is a tissue repair process necessary for the maintenance of the functionality of tissues and organs. This highly orchestrated process is divided into four temporally overlapping phases, including hemostasis, inflammation, proliferation and tissue remodeling. The dynamic interplay between ECM and resident cells exerts its critical role in many aspects of wound healing, including cell proliferation, migration, differentiation, survival, matrix degradation and biosynthesis. Several epigenetic regulatory factors, such as the endogenous non-coding microRNAs (miRNAs), are the drivers of the wound healing response. microRNAs have pivotal roles in regulating ECM composition during wound healing and dermal regeneration. Their expression is associated with the distinct phases of wound healing and they serve as target biomarkers and targets for systematic regulation of wound repair. In this article we critically present the importance of epigenetics with particular emphasis on miRNAs regulating ECM components (i.e. glycoproteins, proteoglycans and matrix proteases) that are key players in wound healing. The clinical relevance of miRNA targeting as well as the delivery strategies designed for clinical applications are also presented and discussed.
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25
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Heffler E, Allegra A, Pioggia G, Picardi G, Musolino C, Gangemi S. MicroRNA Profiling in Asthma: Potential Biomarkers and Therapeutic Targets. Am J Respir Cell Mol Biol 2017; 57:642-650. [PMID: 28489455 DOI: 10.1165/rcmb.2016-0231tr] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Asthma is a heterogeneous chronic inflammatory disorder in which different endotypes contribute to define clinical inflammatory phenotypes. MicroRNAs (miRNAs) are a group of minute, endogenous 22-25 nt RNA elements that join to particular mRNAs to reduce translation and increase messenger RNA degradation. miRNAs operate in post-transcriptional control and regulate physiological and pathological processes in several illnesses. The purpose of this work is to review and discuss the current knowledge about the function of miRNAs in asthma, focusing particularly on their biological properties, pathophysiologic actions, and possible use as markers and treatments for asthma.
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Affiliation(s)
- Enrico Heffler
- 1 Personalized Medicine Asthma and Allergy Clinic, Humanitas Research Hospital, and.,2 Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Alessandro Allegra
- 3 Division of Hematology, Department of General Surgery and Oncology, University of Messina
| | - Giovanni Pioggia
- 4 Institute of Applied Sciences and Intelligent Systems-Messina Unit, and
| | - Giuseppe Picardi
- 5 Respiratory Diseases and Allergy, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Caterina Musolino
- 3 Division of Hematology, Department of General Surgery and Oncology, University of Messina
| | - Sebastiano Gangemi
- 4 Institute of Applied Sciences and Intelligent Systems-Messina Unit, and.,6 School and Division of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University Hospital "G. Martino," Messina, Italy; and
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26
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Yu X, Zhe Z, Tang B, Li S, Tang L, Wu Y, Chen X, Fang H. α-Asarone suppresses the proliferation and migration of ASMCs through targeting the lncRNA-PVT1/miR-203a/E2F3 signal pathway in RSV-infected rats. Acta Biochim Biophys Sin (Shanghai) 2017; 49:598-608. [PMID: 28510638 DOI: 10.1093/abbs/gmx048] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Indexed: 01/22/2023] Open
Abstract
Asthma is a chronic inflammatory pulmonary disease and respiratory syncytial virus (RSV) infection is a common cause of lower respiratory tract illness in infants and young children. α-Asarone presents many pharmacological effects and has been demonstrated to be useful in treating asthma. However, the functional mechanism of α-asarone in RSV-infected asthma has not been investigated. Long non-coding RNAs (lncRNAs) have been reported to play critical roles in many biological processes. Although many lncRNAs have been characterized, few were reported in asthma, especially in RSV-induced asthma. Currently, a novel post-transcriptional regulation has been proposed in which lncRNAs function as competing endogenous RNAs (ceRNAs) to competitively sponge miRNAs, thereby regulating the target genes. In the present study, we established an RSV-infected Sprague-Dawley rat model and demonstrated that lncRNA-PVT1 is involved in the mechanism of α-asarone in treating RSV-induced asthma, and lncRNA-PVT1 regulates the expression of E2F3 by functioning as a ceRNA which competitively sponges miR-203a.
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Affiliation(s)
- Xiao Yu
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Zhe Zhe
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai 200071, China
| | - Binqing Tang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Shaobin Li
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Ling Tang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Yingen Wu
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Xiaorong Chen
- Shanghai Public Health Clinical Center, Shanghai 201508, China
| | - Hong Fang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
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27
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Kim KI, Jeong S, Han N, Oh JM, Oh KH, Kim IW. Identification of differentially expressed miRNAs associated with chronic kidney disease-mineral bone disorder. Front Med 2017. [PMID: 28623542 DOI: 10.1007/s11684-017-0541-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The purpose of this study is to characterize a meta-signature of differentially expressed mRNA in chronic kidney disease (CKD) to predict putative microRNA (miRNA) in CKD-mineral bone disorder (CKD-MBD) and confirm the changes in these genes and miRNA expression under uremic conditions by using a cell culture system. PubMed searches using MeSH terms and keywords related to CKD, uremia, and mRNA arrays were conducted. Through a computational analysis, a meta-signature that characterizes the significant intersection of differentially expressed mRNA and expected miRNAs associated with CKD-MBD was determined. Additionally, changes in gene and miRNA expressions under uremic conditions were confirmed with human Saos-2 osteoblast-like cells. A statistically significant mRNA meta-signature of upregulated and downregulated mRNA levels was identified. Furthermore, miRNA expression profiles were inferred, and computational analyses were performed with the imputed microRNA regulation based on weighted ranked expression and putative microRNA targets (IMRE) method to identify miRNAs associated with CKD occurrence. TLR4 and miR-146b levels were significantly associated with CKD-MBD. TLR4 levels were significantly downregulated, whereas primiR- 146b and miR-146b were upregulated in the presence of uremic toxins in human Saos-2 osteoblast-like cells. Differentially expressed miRNAs associated with CKD-MBD were identified through a computational analysis, and changes in gene and miRNA expressions were confirmed with an in vitro cell culture system.
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Affiliation(s)
- Kyung Im Kim
- College of Pharmacy, Korea University, Sejong, 30019, Republic of Korea
| | - Sohyun Jeong
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Nayoung Han
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jung Mi Oh
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Kook-Hwan Oh
- Division of Nephrology, Department of Internal Medicine, Seoul National University Hospital, Seoul, 03080, Republic of Korea
| | - In-Wha Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
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28
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Austin PJ, Tsitsiou E, Boardman C, Jones SW, Lindsay MA, Adcock IM, Chung KF, Perry MM. Transcriptional profiling identifies the long noncoding RNA plasmacytoma variant translocation (PVT1) as a novel regulator of the asthmatic phenotype in human airway smooth muscle. J Allergy Clin Immunol 2017; 139:780-789. [PMID: 27484035 PMCID: PMC5338875 DOI: 10.1016/j.jaci.2016.06.014] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 05/24/2016] [Accepted: 06/13/2016] [Indexed: 11/22/2022]
Abstract
BACKGROUND The mechanism underlying nonsevere and severe asthma remains unclear, although it is commonly associated with increased airway smooth muscle (ASM) mass. Long noncoding RNAs (lncRNAs) are known to be important in regulating healthy primary airway smooth muscle cells (ASMCs), whereas changed expression has been observed in CD8 T cells from patients with severe asthma. METHODS Primary ASMCs were isolated from healthy subjects (n = 9) and patients classified as having nonsevere (n = 9) or severe (n = 9) asthma. ASMCs were exposed to dexamethasone and FCS. mRNA and lncRNA expression was measured by using a microarray and quantitative real-time PCR. Bioinformatic analysis was used to examine relevant biological pathways. Finally, the lncRNA plasmacytoma variant translocation 1 (PVT1) was inhibited by transfection of primary ASMCs with small interfering RNAs, and the effect on ASMC phenotype was examined. RESULTS The mRNA expression profile was significantly different between patient groups after exposure to dexamethasone and FCS, and these were associated with biological pathways that might be relevant to the pathogenesis of asthma, including cellular proliferation and pathways associated with glucocorticoid activity. We also observed a significant change in lncRNA expression, yet the expression of only one lncRNA (PVT1) is decreased in patients with corticosteroid-sensitive nonsevere asthma and increased in patients with corticosteroid-insensitive severe asthma. Subsequent targeting studies demonstrated the importance of this lncRNA in controlling both proliferation and IL-6 release in ASMCs from patients with severe asthma. CONCLUSIONS lncRNAs are associated with the aberrant phenotype observed in ASMCs from asthmatic patients. Targeting PVT1 might be effective in reducing airway remodeling in asthmatic patients.
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Affiliation(s)
- Philip J Austin
- Airways Disease, National Heart and Lung Institute, Imperial College, London & Royal Brompton NIHR Biomedical Research Unit, London, United Kingdom
| | - Eleni Tsitsiou
- Respiratory Research Group, University Hospital of South Manchester, University of Manchester, Manchester, United Kingdom
| | - Charlotte Boardman
- Airways Disease, National Heart and Lung Institute, Imperial College, London & Royal Brompton NIHR Biomedical Research Unit, London, United Kingdom
| | - Simon W Jones
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, United Kingdom
| | - Mark A Lindsay
- Airways Disease, National Heart and Lung Institute, Imperial College, London & Royal Brompton NIHR Biomedical Research Unit, London, United Kingdom; Respiratory Research Group, University Hospital of South Manchester, University of Manchester, Manchester, United Kingdom; Department of Pharmacy and Pharmacology, University of Bath, Bath, United Kingdom
| | - Ian M Adcock
- Airways Disease, National Heart and Lung Institute, Imperial College, London & Royal Brompton NIHR Biomedical Research Unit, London, United Kingdom
| | - Kian Fan Chung
- Airways Disease, National Heart and Lung Institute, Imperial College, London & Royal Brompton NIHR Biomedical Research Unit, London, United Kingdom
| | - Mark M Perry
- Dubowitz Neuromuscular Centre, Molecular Neurosciences Section, Developmental Neurosciences Programme, UCL Institute of Child Health, London, United Kingdom.
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Roos J, Enlund E, Funcke JB, Tews D, Holzmann K, Debatin KM, Wabitsch M, Fischer-Posovszky P. miR-146a-mediated suppression of the inflammatory response in human adipocytes. Sci Rep 2016; 6:38339. [PMID: 27922090 PMCID: PMC5138634 DOI: 10.1038/srep38339] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 11/08/2016] [Indexed: 12/15/2022] Open
Abstract
The obesity-associated inflammation of white adipose tissue (WAT) is one of the factors leading to the development of related diseases such as insulin resistance and liver steatosis. Recently, microRNAs (miRNAs) were identified as important regulators of WAT functions. Herein, we cultured human Simpson-Golabi-Behmel syndrome (SGBS) adipocytes with macrophage-conditioned medium (MacCM) and performed an Affimetrix miRNA array to identify miRNAs differentially expressed under inflammatory conditions. We identified 24 miRNAs differentially expressed upon inflammation in human adipocytes and miR-146a was the most up-regulated miRNA species. In subcutaneous WAT, miR-146a was elevated in both human and murine obesity. Transfection of miR-146a mimics prevented the MacCM-induced inflammatory response in SGBS adipocytes as seen by reduced levels of IL-8 and MCP-1 mRNA and protein. We identified IRAK1 and TRAF6 as targets of miR-146a in human adipocytes and detected a reduced inflammation-induced activation of JNK and p38 upon miR-146a transfection. Taken together, we could show that miR-146a reduces the inflammatory response in human adipocytes. In a negative feedback loop miR-146a might contribute to the regulation of inflammatory processes in WAT and possibly prevent an overwhelming inflammatory response.
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Affiliation(s)
- Julian Roos
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatric and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | - Eveliina Enlund
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatric and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | - Jan-Bernd Funcke
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatric and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | - Daniel Tews
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatric and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | | | - Klaus-Michael Debatin
- Department of Pediatric and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | - Martin Wabitsch
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatric and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | - Pamela Fischer-Posovszky
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatric and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
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30
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Dua K, Hansbro NG, Foster PS, Hansbro PM. MicroRNAs as therapeutics for future drug delivery systems in treatment of lung diseases. Drug Deliv Transl Res 2016; 7:168-178. [DOI: 10.1007/s13346-016-0343-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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31
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Prakash YS. Emerging concepts in smooth muscle contributions to airway structure and function: implications for health and disease. Am J Physiol Lung Cell Mol Physiol 2016; 311:L1113-L1140. [PMID: 27742732 DOI: 10.1152/ajplung.00370.2016] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 10/06/2016] [Indexed: 12/15/2022] Open
Abstract
Airway structure and function are key aspects of normal lung development, growth, and aging, as well as of lung responses to the environment and the pathophysiology of important diseases such as asthma, chronic obstructive pulmonary disease, and fibrosis. In this regard, the contributions of airway smooth muscle (ASM) are both functional, in the context of airway contractility and relaxation, as well as synthetic, involving production and modulation of extracellular components, modulation of the local immune environment, cellular contribution to airway structure, and, finally, interactions with other airway cell types such as epithelium, fibroblasts, and nerves. These ASM contributions are now found to be critical in airway hyperresponsiveness and remodeling that occur in lung diseases. This review emphasizes established and recent discoveries that underline the central role of ASM and sets the stage for future research toward understanding how ASM plays a central role by being both upstream and downstream in the many interactive processes that determine airway structure and function in health and disease.
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Affiliation(s)
- Y S Prakash
- Departments of Anesthesiology, and Physiology & Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
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32
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O'Leary L, Sevinç K, Papazoglou IM, Tildy B, Detillieux K, Halayko AJ, Chung KF, Perry MM. Airway smooth muscle inflammation is regulated by microRNA-145 in COPD. FEBS Lett 2016; 590:1324-34. [PMID: 27060571 PMCID: PMC5082497 DOI: 10.1002/1873-3468.12168] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 03/30/2016] [Accepted: 03/30/2016] [Indexed: 12/30/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a common, highly debilitating disease of the airways, primarily caused by smoking. Chronic inflammation and structural remodelling are key pathological features of this disease, in part caused by the aberrant function of airway smooth muscle (ASM) cells under the regulation of transforming growth factor (TGF)-β. miRNA are short, noncoding gene transcripts involved in the negative regulation of specific target genes, through their interactions with mRNA. Previous studies have proposed that mRNA-145 (miR-145) may interact with SMAD3, an important downstream signalling molecule of the TGF-β pathway. TGF-β was used to stimulate primary human ASM cells isolated from healthy nonsmokers, healthy smokers and COPD patients. This resulted in a TGF-β-dependent increase in CXCL8 and IL-6 release, most notably in the cells from COPD patients. TGF-β stimulation increased SMAD3 expression, only in cells from COPD patients, with a concurrent increased miR-145 expression. Regulation of miR-145 was found to be negatively controlled by pathways involving the MAP kinases, MEK-1/2 and p38 MAPK. Subsequent, overexpression of miR-145 (using synthetic mimics) in ASM cells from patients with COPD suppressed IL-6 and CXCL8 release, to levels comparable to the nonsmoker controls. Therefore, this study suggests that miR-145 negatively regulates pro-inflammatory cytokine release from ASM cells in COPD by targeting SMAD3.
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Affiliation(s)
- Lawrence O'Leary
- Airways Disease, National Heart and Lung Institute, Imperial College, London, UK
- Royal Brompton NIHR Biomedical Research Unit, London, UK
| | - Kenan Sevinç
- Airways Disease, National Heart and Lung Institute, Imperial College, London, UK
- Royal Brompton NIHR Biomedical Research Unit, London, UK
| | - Ilektra M Papazoglou
- Airways Disease, National Heart and Lung Institute, Imperial College, London, UK
- Royal Brompton NIHR Biomedical Research Unit, London, UK
| | - Bernadett Tildy
- Airways Disease, National Heart and Lung Institute, Imperial College, London, UK
- Royal Brompton NIHR Biomedical Research Unit, London, UK
| | - Karen Detillieux
- Departments of Internal Medicine & Physiology, Respiratory Hospital, Winnipeg, MB, Canada
| | - Andrew J Halayko
- Departments of Internal Medicine & Physiology, Respiratory Hospital, Winnipeg, MB, Canada
| | - Kian Fan Chung
- Airways Disease, National Heart and Lung Institute, Imperial College, London, UK
- Royal Brompton NIHR Biomedical Research Unit, London, UK
| | - Mark M Perry
- Molecular Neurosciences, The Dubowitz Neuromuscular Centre, UCL Institute of Child Health, London, UK
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Vencken SF, Greene CM. Toll-Like Receptors in Cystic Fibrosis: Impact of Dysfunctional microRNA on Innate Immune Responses in the Cystic Fibrosis Lung. J Innate Immun 2016; 8:541-549. [PMID: 27043239 DOI: 10.1159/000444687] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Accepted: 02/15/2016] [Indexed: 12/16/2022] Open
Abstract
Toll-like receptors (TLRs) are a class of pattern recognition receptors that are particularly expressed in the sentinel and epithelial cells in the body, including the lung. They are central players in the innate immune system in response to microbial infection, and are the triggers of a complex pathway network that both promotes the inflammatory response and influences the adaptive immune response. These pathways are transiently and finely tuned by cellular factors, including a cell's microRNA response program. MicroRNAs are small, non-coding RNAs that specifically regulate gene expression. In this article, we review the disease-specific microRNA regulatory network of cystic fibrosis, a debilitating and ultimately fatal disease and, specifically, its effect on TLR signalling.
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Affiliation(s)
- Sebastian F Vencken
- Department of Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland
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Béres NJ, Szabó D, Kocsis D, Szűcs D, Kiss Z, Müller KE, Lendvai G, Kiss A, Arató A, Sziksz E, Vannay Á, Szabó AJ, Veres G. Role of Altered Expression of miR-146a, miR-155, and miR-122 in Pediatric Patients with Inflammatory Bowel Disease. Inflamm Bowel Dis 2016; 22:327-35. [PMID: 26752469 DOI: 10.1097/mib.0000000000000687] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Evidence suggests the central role of tumor necrosis factor (TNF)-α in the pathomechanism of inflammatory bowel disease (IBD); however, its effect on epigenetic factors, including small non-coding microRNAs (miRs), is less known. Our present aim was the comparative investigation of the expression of TNF-α and immune response-related miRs in children with Crohn's disease (CD) and ulcerative colitis (UC). METHODS Fresh-frozen (FF) and formalin-fixed, paraffin-embedded (FFPE) biopsies were used to analyze the expression of miR-146a, -155, -122, and TNF-α by real-time reverse transcription polymerase chain reaction in macroscopically inflamed (CD: 12 FFPE and 24 FF; UC: 10 FF) and intact (CD: 12 FFPE; 14 FF) colonic biopsies of children with IBD and controls (16 FFPE; 23 FF). The expression of miR-146a, -155, and -122 was also determined in TNF-α-treated HT-29 colonic epithelial cells. RESULTS Increased expression of TNF-α was observed in the colonic mucosa of children with CD and UC in comparison with controls. Expression of miR-146a and -155 was higher in the inflamed mucosa of children with CD and UC than in the intact mucosa. Expression of miR-122 elevated in the macroscopically intact colonic regions of CD compared with controls and patients with UC. In HT-29 cells, TNF-α treatment increased the expression of miR-146a and -155, but not that of miR-122. CONCLUSIONS Our results showed altered expression of miR-146a, -155, and -122 in the colonic mucosa of children with IBD and in TNF-α-treated colonic epithelial cells. Our data suggest the TNF-α-related involvement of these miRs in the pathogenesis of IBD.
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Affiliation(s)
- Nóra J Béres
- *1st Department of Pediatrics, Semmelweis University, Budapest, Hungary; †2nd Department of Internal Medicine, Semmelweis University, Budapest, Hungary; ‡Department of Pediatrics and Pediatric Health Care Center, University of Szeged, Szeged, Hungary; §2nd Department of Pathology, Semmelweis University, Budapest, Hungary; ‖MTA-SE, Tumor Progression Research Group, Budapest, Hungary; and ¶MTA-SE, Pediatrics and Nephrology Research Group, Budapest, Hungary
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Ebrahimi A, Sadroddiny E. MicroRNAs in lung diseases: Recent findings and their pathophysiological implications. Pulm Pharmacol Ther 2015; 34:55-63. [PMID: 26319446 DOI: 10.1016/j.pupt.2015.08.007] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 08/04/2015] [Accepted: 08/24/2015] [Indexed: 12/14/2022]
Abstract
Lung diseases are one of the leading causes of mortality and morbidity worldwide and effective therapies are imperfect. Nonetheless, recently some novel strategies have been developed to treat and curtail their debilitating impact. Some of the treatments include the role of MicroRNAs (miRNAs) in stemming the spread of lung morbidities. Micro RNAs are small non-coding RNAs which are known as important players in the posttranscriptional regulation of gene expression in mammalian cells by regulating translation. MiRNAs are involved in basic regulatory mechanisms of cells including influencing inflammation. MiRNA dysregulation, resulting in aberrant expression of a gene, is suggested to play a key role in susceptibility of diseases. MiRNAs are involved in the pathogenesis of lung diseases such as cystic fibrosis, lung cancer, asthma, chronic obstructive pulmonary disease, and Idiopathic pulmonary fibrosis. A better understanding of the involvement of miRNAs in pathogenesis of these diseases could result in the development of new therapeutic and diagnostic tools. In this review, we provide an overview of the current understanding of miRNA biogenesis and role as well as recent insights into role of some miRNAs in different pulmonary diseases.
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Affiliation(s)
- Ammar Ebrahimi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Esmaeil Sadroddiny
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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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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Xiao Z, Peng J, Yang L, Kong H, Yin F. Interleukin-1β plays a role in the pathogenesis of mesial temporal lobe epilepsy through the PI3K/Akt/mTOR signaling pathway in hippocampal neurons. J Neuroimmunol 2015; 282:110-7. [DOI: 10.1016/j.jneuroim.2015.04.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 03/27/2015] [Accepted: 04/01/2015] [Indexed: 12/11/2022]
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Jain M, Singh A, Singh V, Barthwal MK. Involvement of interleukin-1 receptor-associated kinase-1 in vascular smooth muscle cell proliferation and neointimal formation after rat carotid injury. Arterioscler Thromb Vasc Biol 2015; 35:1445-55. [PMID: 25908764 DOI: 10.1161/atvbaha.114.305028] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Accepted: 04/07/2015] [Indexed: 01/30/2023]
Abstract
OBJECTIVE Reduced frequency of atherosclerotic plaques is observed in interleukin-1 receptor-associated kinase-1 (IRAK1)-deficient mice; however, the underlying mechanism is not clear. Therefore, this study investigate the role of IRAK1 in vascular smooth muscle cell proliferation and neointimal hyperplasia. APPROACH AND RESULTS Stimulation of rat primary vascular smooth muscle cells with fetal bovine serum (10%) or platelet-derived growth factor-BB (20 ng/mL) for 15 minutes to 24 hours induced a time-dependent increase in IRAK1 and extracellular signal-regulated kinase (ERK) activation, proliferating cell nuclear antigen upregulation and p27Kip1 downregulation as assessed by Western blotting. Inhibitors of ERK pathway (U0126, 10 μmol/L), IRAK (IRAK1/4, 3 μmol/L), protein kinase C (PKC; Ro-31-8220, 1 μmol/L), siRNA of toll-like receptor-4 (200 nmol/L), and PKC-ε (200 nmol/L) significantly attenuated these changes. Platelet-derived growth factor induced endogenous IRAK-ERK-PKC-ε association in a toll-like receptor-4 and PKC-ε-dependent manner. A time-dependent increase in IRAK1 and ERK activation was observed after 15 minutes, 30 minutes, 1 hour, 6 hours, 12 hours, and 24 hours of carotid balloon injury in rats. Balloon injury induced endogenous IRAK-ERK-PKC-ε interaction. Perivascular application of IRAK1/4 inhibitor (100 μmol/L), U0126 (100 μmol/L), and IRAK1 siRNA (220 and 360 nmol/L) in pluronic gel abrogated balloon injury-induced ERK phosphorylation, activation, and p27Kip1 downregulation. Hematoxylin and eosin staining and immunohistochemistry of proliferating cell nuclear antigen and smooth muscle actin demonstrated that balloon injury-induced intimal thickening and neointimal vascular smooth muscle cell proliferation were significantly abrogated in the presence of IRAK1/4 inhibitor, IRAK1 siRNA, and U0126. CONCLUSIONS IRAK1 mediates vascular smooth muscle cell proliferation and neointimal hyperplasia by regulating PKC-ε-IRAK1-ERK axis.
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Affiliation(s)
- Manish Jain
- From the Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Ankita Singh
- From the Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Vishal Singh
- From the Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Manoj Kumar Barthwal
- From the Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India.
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Perry MM, Durham AL, Austin PJ, Adcock IM, Chung KF. BET bromodomains regulate transforming growth factor-β-induced proliferation and cytokine release in asthmatic airway smooth muscle. J Biol Chem 2015; 290:9111-21. [PMID: 25697361 PMCID: PMC4423696 DOI: 10.1074/jbc.m114.612671] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Indexed: 01/19/2023] Open
Abstract
Airway smooth muscle (ASM) mass is increased in asthma, and ASM cells from patients with asthma are hyperproliferative and release more IL-6 and CXCL8. The BET (bromo- and extra-terminal) family of proteins (Brd2, Brd3, and Brd4) govern the assembly of histone acetylation-dependent chromatin complexes. We have examined whether they modulate proliferation and cytokine expression in asthmatic ASM cells by studying the effect of BET bromodomain mimics JQ1/SGCBD01 and I-BET762. ASM cells from healthy individuals and nonsevere and severe asthmatics were pretreated with JQ1/SGCBD01 and I-BET762 prior to stimulation with FCS and TGF-β. Proliferation was measured by BrdU incorporation. IL-6 and CXCL8 release was measured by ELISA, and mRNA expression was measured by quantitative RT-PCR. ChIP using a specific anti-Brd4 antibody and PCR primers directed against the transcriptional start site of IL-6 and CXCL8 gene promoters was performed. Neither JQ1/SGCBD01 nor I-BET762 had any effect on ASM cell viability. JQ1/SGCBD01 and I-BET762 inhibited FCS+TGF-β-induced ASM cell proliferation and IL-6 and CXCL8 release in healthy individuals (≥ 30 nm) and in nonsevere and severe asthma patients (≥100 nm), with the latter requiring higher concentrations of these mimics. JQ1/SGCBD01 reduced Brd4 binding to IL8 and IL6 promoters induced by FCS+TGF-β. Mimics of BET bromodomains inhibit aberrant ASM cell proliferation and inflammation with lesser efficiency in those from asthmatic patients. They may be effective in reducing airway remodeling in asthma.
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Affiliation(s)
- Mark M Perry
- From the Experimental Studies, National Heart and Lung Institute, Imperial College London and Royal Brompton National Institute for Health Research Biomedical Research Unit, London SW3 6LY, United Kingdom
| | - Andrew L Durham
- From the Experimental Studies, National Heart and Lung Institute, Imperial College London and Royal Brompton National Institute for Health Research Biomedical Research Unit, London SW3 6LY, United Kingdom
| | - Philip J Austin
- From the Experimental Studies, National Heart and Lung Institute, Imperial College London and Royal Brompton National Institute for Health Research Biomedical Research Unit, London SW3 6LY, United Kingdom
| | - Ian M Adcock
- From the Experimental Studies, National Heart and Lung Institute, Imperial College London and Royal Brompton National Institute for Health Research Biomedical Research Unit, London SW3 6LY, United Kingdom
| | - Kian Fan Chung
- From the Experimental Studies, National Heart and Lung Institute, Imperial College London and Royal Brompton National Institute for Health Research Biomedical Research Unit, London SW3 6LY, United Kingdom
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Ciechomska M, O’Reilly S, Suwara M, Bogunia-Kubik K, van Laar JM. MiR-29a reduces TIMP-1 production by dermal fibroblasts via targeting TGF-β activated kinase 1 binding protein 1, implications for systemic sclerosis. PLoS One 2014; 9:e115596. [PMID: 25549087 PMCID: PMC4280195 DOI: 10.1371/journal.pone.0115596] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 11/28/2014] [Indexed: 11/25/2022] Open
Abstract
Background Systemic sclerosis (SSc) is an autoimmune connective tissue disease characterised by skin and internal organs fibrosis due to accumulation of extra cellular matrix (ECM) proteins. Tissue inhibitor of metalloproteinases 1 (TIMP-1) plays a key role in ECM deposition. Aim To investigate the role of miR-29a in regulation of TAB1-mediated TIMP-1 production in dermal fibroblasts in systemic sclerosis. Methods Healthy control (HC) and SSc fibroblasts were cultured from skin biopsies. The expression of TIMP-1, MMP-1 and TGF-β activated kinase 1 binding protein 1 (TAB1) was measured following miR-29a transfection using ELISA, qRT-PCR, and Western Blotting. The functional effect of miR-29a on dermal fibroblasts was assessed in collagen gel assay. In addition, HeLa cells were transfected with 3′UTR of TAB1 plasmid cloned downstream of firefly luciferase gene to assess TAB1 activity. HC fibroblasts and HeLa cells were also transfected with Target protectors in order to block the endogenous miR-29a activity. Results We found that TAB1 is a novel target gene of miR-29a, also regulating downstream TIMP-1 production. TAB1 is involved in TGF-β signal transduction, a key cytokine triggering TIMP-1 production. To confirm that TAB1 is a bona fide target gene of miR-29a, we used a TAB1 3′UTR luciferase assay and Target protector system. We showed that miR-29a not only reduced TIMP-1 secretion via TAB1 repression, but also increased functional MMP-1 production resulting in collagen degradation. Blocking TAB1 activity by pharmacological inhibition or TAB1 knockdown resulted in TIMP-1 reduction, confirming TAB1-dependent TIMP-1 regulation. Enhanced expression of miR-29a was able to reverse the profibrotic phenotype of SSc fibroblasts via downregulation of collagen and TIMP-1. Conclusions miR-29a repressed TAB1-mediated TIMP-1 production in dermal fibroblasts, demonstrating that miR-29a may be a therapeutic target in SSc.
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Affiliation(s)
- Marzena Ciechomska
- Newcastle University, Musculoskeletal Research Group, Institute of Cellular Medicine, Newcastle upon Tyne, United Kingdom
- L. Hirszferd Institute of Immunology and Experimental Therapy, Polish Academy of Science, Wroclaw, Poland
- * E-mail:
| | - Steven O’Reilly
- Newcastle University, Musculoskeletal Research Group, Institute of Cellular Medicine, Newcastle upon Tyne, United Kingdom
| | - Monika Suwara
- Newcastle University, Fibrosis Research Group, Institute of Cellular Medicine, Newcastle upon Tyne, United Kingdom
| | - Katarzyna Bogunia-Kubik
- L. Hirszferd Institute of Immunology and Experimental Therapy, Polish Academy of Science, Wroclaw, Poland
| | - Jacob M. van Laar
- Newcastle University, Musculoskeletal Research Group, Institute of Cellular Medicine, Newcastle upon Tyne, United Kingdom
- University Medical Center Utrecht, Department of Rheumatology & Clinical Immunology, Utrecht, the Netherlands
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Saba R, Sorensen DL, Booth SA. MicroRNA-146a: A Dominant, Negative Regulator of the Innate Immune Response. Front Immunol 2014; 5:578. [PMID: 25484882 PMCID: PMC4240164 DOI: 10.3389/fimmu.2014.00578] [Citation(s) in RCA: 269] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 10/28/2014] [Indexed: 01/22/2023] Open
Abstract
MicroRNAs (miRNAs) are a class of small non-coding RNA molecules that can play critical roles as regulators of numerous pathways and biological processes including the immune response. Emerging as one of the most important miRNAs to orchestrate immune and inflammatory signaling, often through its recognized target genes, IRAK1 and TRAF6, is microRNA-146a (miR-146a). MiR-146a is one, of a small number of miRNAs, whose expression is strongly induced following challenge of cells with bacterial endotoxin, and prolonged expression has been linked to immune tolerance, implying that it acts as a fine-tuning mechanism to prevent an overstimulation of the inflammatory response. In other cells, miR-146a has been shown to play a role in the control of the differentiation of megakaryocytic and monocytic lineages, adaptive immunity, and cancer. In this review, we discuss the central role prescribed to miR-146a in innate immunity. We particularly focus on the role played by miR-146a in the regulation and signaling mediated by one of the main pattern recognition receptors, toll/IL-1 receptors (TLRs). Additionally, we also discuss the role of miR-146a in several classes of autoimmune pathologies where this miRNA has been shown to be dysregulated, as well as its potential role in the pathobiology of neurodegenerative diseases.
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Affiliation(s)
- Reuben Saba
- Molecular PathoBiology, National Microbiology Laboratory, Public Health Agency of Canada , Winnipeg, MB , Canada
| | - Debra L Sorensen
- Molecular PathoBiology, National Microbiology Laboratory, Public Health Agency of Canada , Winnipeg, MB , Canada
| | - Stephanie A Booth
- Molecular PathoBiology, National Microbiology Laboratory, Public Health Agency of Canada , Winnipeg, MB , Canada ; Department of Medical Microbiology, University of Manitoba , Winnipeg, MB , Canada
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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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Jiang X. Different signal pathways regulate IL-1β-induced mature and primary miRNA-146a expression in human alveolar epithelial cells. ACTA ACUST UNITED AC 2014; 101:282-90. [PMID: 25183503 DOI: 10.1556/aphysiol.101.2014.3.3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
It was known that IL-1β-induced rapid expression of miR-146a, which regulated the secretion of inflammatory chemokines in human A549 alveolar epithelial cells. However, little is known about the level of primary miR-146a and the downstream biogenesis of miR-146a in A549 cells. We examined the levels of primary miR-146a and mature miR-146a in A549 cells following treatment with pharmacological inhibitors of IKK-2 (TPCA-1), MEK-1/2 (PD098059), JNK-1/2 (SP600125), p38 MAPK (SB 203580) and PI-3k (LY294002). Our studies showed that exposure to PD98059, TPCA-1 and LY294002 resulted in a dose-dependent reduction in the expression of mature miR-146a while the primary miR-146a expression was not changed by any inhibitor. Western blot showed that IL-1β induced an increase of TRBP at 30 min, following by an extended expression at 24 h compared to the non-IL-1β controls in A549 cells. In conclusion, our studies indicated that miR-146a expression in alveolar epithelial cells was regulated at the post-transcriptional level via a MEK-1/2 and IKK2 pathway, and also for the first time via PI-3k pathway. The longer expression of TRBP following stimulation with IL-1β suggests that TRBP might play a role in the process of regulating the processing of primary miR-146a to mature miR-146a in human alveolar epithelial cells.
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Affiliation(s)
- Xiaoying Jiang
- Xi'an Jiaotong University Department of Genetics and Molecular Biology, School of Medicine 76 Yanta West Road Xi'an, Shaanxi 710061 China University of Manchester NIHR Translational Research Facility in Respiratory Medicine Group, School of Translational Medicine Manchester UK
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Comer BS, Camoretti-Mercado B, Kogut PC, Halayko AJ, Solway J, Gerthoffer WT. MicroRNA-146a and microRNA-146b expression and anti-inflammatory function in human airway smooth muscle. Am J Physiol Lung Cell Mol Physiol 2014; 307:L727-34. [PMID: 25217662 DOI: 10.1152/ajplung.00174.2014] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
MicroRNA (miR)-146a and miR-146b are negative regulators of inflammatory gene expression in lung fibroblasts, epithelial cells, monocytes, and endothelial cells. The abundance of cyclooxygenase-2 (COX-2) and IL-1β is negatively regulated by the miR-146 family, suggesting miR-146a and/or miR-146b might modulate inflammatory mediator expression in airway smooth muscle thereby contributing to pathogenesis of asthma. To test this idea we compared miR-146a and miR-146b expression in human airway smooth muscle cells (hASMCs) from nonasthmatic and asthmatic subjects treated with cytomix (IL-1β, TNF-α, and IFNγ) and examined the miRNAs' effects on COX-2 and IL-1β expression. We found that cytomix treatment elevated miR-146a and miR-146b abundance. Induction with cytomix was greater than induction with individual cytokines, and asthmatic cells exhibited higher levels of miR-146a expression following cytomix treatment than nonasthmatic cells. Transfection of miR-146a or miR-146b mimics reduced COX-2 and IL-1β expression. A miR-146a inhibitor increased COX-2 and IL-1β expression, but a miR-146b inhibitor was ineffective. Repression of COX-2 and IL-1β expression by miR-146a correlated with reduced abundance of the RNA-binding protein human antigen R. These results demonstrate that miR-146a and miR-146b expression is inducible in hASMCs by proinflammatory cytokines and that miR-146a expression is greater in asthmatic cells. Both miR-146a and miR-146b can negatively regulate COX-2 and IL-1β expression at pharmacological levels, but loss-of-function studies showed that only miR-146a is an endogenous negative regulator in hASMCs. The results suggest miR-146 mimics may be an attractive candidate for further preclinical studies as an anti-inflammatory treatment of asthma.
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Affiliation(s)
- Brian S Comer
- Department of Biochemistry and Molecular Biology, University of South Alabama, Mobile, Alabama
| | - Blanca Camoretti-Mercado
- Center for Personalized Medicine and Genomics, Division of Allergy and Immunology, Department of Internal Medicine, University of South Florida College of Medicine, Tampa, Florida
| | - Paul C Kogut
- Department of Medicine and Institute for Translational Medicine, University of Chicago, Chicago, Illinois
| | - Andrew J Halayko
- Departments of Physiology and Pathophysiology, and Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada; Biology of Breathing Group, Manitoba Institute of Child Health, Winnipeg, Manitoba, Canada; and
| | - Julian Solway
- Department of Medicine and Institute for Translational Medicine, University of Chicago, Chicago, Illinois; Department of Pediatrics, Institute of Translational Medicine, University of Chicago, Chicago, Illinois
| | - William T Gerthoffer
- Department of Biochemistry and Molecular Biology, University of South Alabama, Mobile, Alabama;
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Rau CS, Yang JCS, Chen YC, Wu CJ, Lu TH, Tzeng SL, Wu YC, Hsieh CH. Lipopolysaccharide-induced microRNA-146a targets CARD10 and regulates angiogenesis in human umbilical vein endothelial cells. Toxicol Sci 2014; 140:315-26. [PMID: 24863965 DOI: 10.1093/toxsci/kfu097] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
This aim of this study was to explore the role of miRNA-146a (miR-146a) and its target genes in endothelial cells. We demonstrated that lipopolysaccharide (LPS) induced the upregulation of miR-146a in human umbilical vein endothelial cells (HUVECs), and that the induction was blocked by silencing toll-like receptors, the adaptor molecule MyD88, and the nonspecific NF-κB inhibitor BAY 11-7082. In addition, knockdown of miR-146a by transfection of the locked nucleic acid antimiR-146a significantly inhibited LPS-induced cell migration and tube formation. A combined analysis of bioinformatics miRanda algorithms and a whole genome expression microarray of immunoprecipitated Ago2 ribonucleoprotein complexes identified 14 potential target genes. Subsequent transfection with the miR-146a precursor pre-miR-146a into HUVECs validated that CARD10 was the target gene of the miR-146a, both at the mRNA and protein levels. Silencing CARD10 inhibited p65 nuclear translocation in the cells receiving LPS stimulation and increased angiogenesis. Therefore, miR-146a may play a role in regulating the angiogenesis in HUVECs by downregulating CARD10, which acts in a negative feedback regulation loop to inhibit the activation of NF-κB that normally impairs angiogenesis.
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Affiliation(s)
| | - Johnson Chia-Shen Yang
- Department of Plastic and Reconstructive Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taiwan
| | - Yi-Chun Chen
- Department of Plastic and Reconstructive Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taiwan
| | - Chia-Jung Wu
- Department of Plastic and Reconstructive Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taiwan
| | - Tsu-Hsiang Lu
- Department of Plastic and Reconstructive Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taiwan
| | - Siou-Ling Tzeng
- Department of Plastic and Reconstructive Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taiwan
| | - Yi-Chan Wu
- Department of Plastic and Reconstructive Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taiwan
| | - Ching-Hua Hsieh
- Department of Plastic and Reconstructive Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taiwan
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Perry MM, Tsitsiou E, Austin PJ, Lindsay MA, Gibeon DS, Adcock IM, Chung KF. Role of non-coding RNAs in maintaining primary airway smooth muscle cells. Respir Res 2014; 15:58. [PMID: 24886442 PMCID: PMC4039655 DOI: 10.1186/1465-9921-15-58] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 04/28/2014] [Indexed: 12/16/2022] Open
Abstract
Background The airway smooth muscle (ASM) cell maintains its own proliferative rate and contributes to the inflammatory response in the airways, effects that are inhibited by corticosteroids, used in the treatment of airways diseases. Objective We determined the differential expression of mRNAs, microRNAs (miRNAs) and long noncoding RNA species (lncRNAs) in primary ASM cells following treatment with a corticosteroid, dexamethasone, and fetal calf serum (FCS). Methods mRNA, miRNA and lncRNA expression was measured by microarray and quantitative real-time PCR. Results A small number of miRNAs (including miR-150, −371-5p, −718, −940, −1181, −1207-5p, −1915, and −3663-3p) were decreased following exposure to dexamethasone and FCS. The mRNA targets of these miRNAs were increased in expression. The changes in mRNA expression were associated with regulation of ASM actin cytoskeleton. We also observed changes in expression of lncRNAs, including natural antisense, pseudogenes, intronic lncRNAs, and intergenic lncRNAs following dexamethasone and FCS. We confirmed the change in expression of three of these, LINC00882, LINC00883, PVT1, and its transcriptional activator, c-MYC. We propose that four of these lincRNAs (RP11-46A10.4, LINC00883, BCYRN1, and LINC00882) act as miRNA ‘sponges’ for 4 miRNAs (miR-150, −371-5p, −940, −1207-5p). Conclusion This in-vitro model of primary ASM cell phenotype was associated with the regulation of several ncRNAs. Their identification allows for in-vitro functional experimentation to establish causality with the primary ASM phenotype, and in airway diseases such as asthma and chronic obstructive pulmonary disease (COPD).
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Affiliation(s)
- Mark M Perry
- Experimental Studies, National Heart and Lung Institute, Imperial College, London & Royal Brompton NIHR Biomedical Research Unit, Dovehouse Street, London SW3 6LY, UK.
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Perry MM, Baker JE, Gibeon DS, Adcock IM, Chung KF. Airway smooth muscle hyperproliferation is regulated by microRNA-221 in severe asthma. Am J Respir Cell Mol Biol 2014; 50:7-17. [PMID: 23944957 DOI: 10.1165/rcmb.2013-0067oc] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Increased airway smooth muscle (ASM) mass is a feature of asthmatic airways, and could result from augmented proliferation. We determined whether proliferation and IL-6 release are abnormal in ASM cells (ASMCs) from patients with severe asthma, and whether these features could be mediated by microRNA-221 and microRNA-222, through modulation of the cyclin-dependent kinase inhibitors, p21(WAF1) and p27(kip1). ASMCs cultured from bronchial biopsies of healthy subjects and patients with nonsevere or severe asthma were studied. Proliferation was measured by the incorporation of bromodeoxyuridine and IL-6 by ELISA. FCS and transforming growth factor (TGF)-β caused greater proliferation and IL-6 release in patients with severe compared with nonsevere asthma and normal subjects. FCS + TGF-β inhibited p21(WAF1) and p27(kip1) expression, and increased microRNA-221 (miR-221) expression in ASMCs from individuals with severe asthma. miR-221, and not miR-222, mimics the increased proliferation and IL-6 release induced by FCS + TGF in healthy ASM, whereas in patients with severe asthma, the inhibition of miR-221, but not miR-222, inhibited proliferation and IL-6 release. miR-221 inhibition led to the increased expression of FCS + TGF-β-induced p21(WAF1) and p27(kip1). Dexamethasone suppressed proliferation in healthy subjects, but not in subjects with asthma. IL-6 was less suppressible by dexamethasone in patients with nonsevere and severe asthma, compared with healthy subjects. miR-221 did not influence the effects of dexamethasone. ASM from patients with severe asthma shows greater proliferation and IL-6 release than in patients with nonsevere asthma, but both groups show corticosteroid insensitivity. miR-221 regulates p21(WAF1) and p27(kip1) expression levels. Furthermore, miR-221 regulates the hyperproliferation and IL-6 release of ASMCs from patients with severe asthma, but does not regulate corticosteroid insensitivity.
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Affiliation(s)
- Mark M Perry
- 1 Experimental Studies Unit, National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
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Prakash YS. Airway smooth muscle in airway reactivity and remodeling: what have we learned? Am J Physiol Lung Cell Mol Physiol 2013; 305:L912-33. [PMID: 24142517 PMCID: PMC3882535 DOI: 10.1152/ajplung.00259.2013] [Citation(s) in RCA: 159] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 10/12/2013] [Indexed: 12/12/2022] Open
Abstract
It is now established that airway smooth muscle (ASM) has roles in determining airway structure and function, well beyond that as the major contractile element. Indeed, changes in ASM function are central to the manifestation of allergic, inflammatory, and fibrotic airway diseases in both children and adults, as well as to airway responses to local and environmental exposures. Emerging evidence points to novel signaling mechanisms within ASM cells of different species that serve to control diverse features, including 1) [Ca(2+)]i contractility and relaxation, 2) cell proliferation and apoptosis, 3) production and modulation of extracellular components, and 4) release of pro- vs. anti-inflammatory mediators and factors that regulate immunity as well as the function of other airway cell types, such as epithelium, fibroblasts, and nerves. These diverse effects of ASM "activity" result in modulation of bronchoconstriction vs. bronchodilation relevant to airway hyperresponsiveness, airway thickening, and fibrosis that influence compliance. This perspective highlights recent discoveries that reveal the central role of ASM in this regard and helps set the stage for future research toward understanding the pathways regulating ASM and, in turn, the influence of ASM on airway structure and function. Such exploration is key to development of novel therapeutic strategies that influence the pathophysiology of diseases such as asthma, chronic obstructive pulmonary disease, and pulmonary fibrosis.
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Affiliation(s)
- Y S Prakash
- Dept. of Anesthesiology, Mayo Clinic, 4-184 W Jos SMH, 200 First St. SW, Rochester, MN 55905.
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Plank M, Maltby S, Mattes J, Foster PS. Targeting translational control as a novel way to treat inflammatory disease: the emerging role of MicroRNAs. Clin Exp Allergy 2013. [DOI: 10.1111/cea.12135] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- M. Plank
- Priority Research Centre for Asthma and Respiratory Disease; Department of Microbiology and Immunology; School of Pharmacy and Biomedical Sciences; Faculty of Health and Hunter Medical Research Institute; University of Newcastle; Newcastle; NSW; Australia
| | - S. Maltby
- Priority Research Centre for Asthma and Respiratory Disease; Department of Microbiology and Immunology; School of Pharmacy and Biomedical Sciences; Faculty of Health and Hunter Medical Research Institute; University of Newcastle; Newcastle; NSW; Australia
| | | | - P. S. Foster
- Priority Research Centre for Asthma and Respiratory Disease; Department of Microbiology and Immunology; School of Pharmacy and Biomedical Sciences; Faculty of Health and Hunter Medical Research Institute; University of Newcastle; Newcastle; NSW; Australia
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Abstract
PURPOSE OF REVIEW Asthma is a global disease affecting millions of people. Current treatments are largely symptomatic and, although often effective, can be associated with various side effects. microRNAs (miRNAs/miRs) are regulatory RNAs that affect protein synthesis. They represent new therapeutic targets, and medicines that target specific miRNAs may have potential in the treatment of asthma. RECENT FINDINGS There have been a number of studies in the field of miRNA that implicate specific miRNAs in the pathophysiology of asthma. For example, studies using mouse models have identified miRNAs that are altered in response to allergen challenge. Certain miRNAs that are involved in the regulation of interleukin-13 and the TH2 response, key components of the asthmatic response, have been shown to be amenable to modulation by premiRs and antimiRs. Other studies have identified miRNAs that are implicated in bronchial smooth muscle hyperresponsiveness and proliferation. Single-nucleotide polymorphisms in miRNA responsive elements within asthma susceptibility genes, and also in miRNAs themselves, can also contribute to the asthma phenotype. SUMMARY Developing miRNA-based medicines to treat the pulmonary manifestations of asthma could yield therapeutics with new properties that have the potential to treat both the inflammation and hyperresponsivesness associated with this disease.
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