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Castro CFG, Nardiello C, Hadzic S, Kojonazarov B, Kraut S, Gierhardt M, Schäffer J, Bednorz M, Quanz K, Heger J, Korfei M, Wilhelm J, Hecker M, Bartkuhn M, Arnhold S, Guenther A, Seeger W, Schulz R, Weissmann N, Sommer N, Pak O. The Role of the Redox Enzyme p66Shc in Biological Aging of the Lung. Aging Dis 2024; 15:911-926. [PMID: 37548932 PMCID: PMC10917546 DOI: 10.14336/ad.2023.0715] [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: 03/27/2023] [Accepted: 07/15/2023] [Indexed: 08/08/2023] Open
Abstract
The mitochondrial adaptor protein p66Shc has been suggested to control life span in mice via the release of hydrogen peroxide. However, the role of p66Shc in lung aging remains unsolved. Thus, we investigated the effects of p66Shc-/- on the aging of the lung and pulmonary circulation. In vivo lung and cardiac characteristics were investigated in p66Shc-/- and wild type (WT) mice at 3, 12, and 24 months of age by lung function measurements, micro-computed tomography (µCT), and echocardiography. Alveolar number and muscularization of small pulmonary arteries were measured by stereology and vascular morphometry, respectively. Protein and mRNA levels of senescent markers were measured by western blot and PCR, respectively. Lung function declined similarly in WT and p66Shc-/- mice during aging. However, µCT analyses and stereology showed slightly enhanced signs of aging-related parameters in p66Shc-/- mice, such as a decline of alveolar density. Accordingly, p66Shc-/- mice showed higher protein expression of the senescence marker p21 in lung homogenate compared to WT mice of the corresponding age. Pulmonary vascular remodeling was increased during aging, but aged p66Shc-/- mice showed similar muscularization of pulmonary vessels and hemodynamics like WT mice. In the heart, p66Shc-/- prevented the deterioration of right ventricular (RV) function but promoted the decline of left ventricular (LV) function during aging. p66Shc-/- affects the aging process of the lung and the heart differently. While p66Shc-/- slightly accelerates lung aging and deteriorates LV function in aged mice, it seems to exert protective effects on RV function during aging.
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Affiliation(s)
- Claudia F. Garcia Castro
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
| | - Claudio Nardiello
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
| | - Stefan Hadzic
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
| | - Baktybek Kojonazarov
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
- Institute for Lung Health (ILH), Giessen, Germany.
| | - Simone Kraut
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
| | - Mareike Gierhardt
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA), CONICET - Partner Institute of the Max Planck Society, Buenos Aires, Argentina.
- Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.
| | - Julia Schäffer
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
| | - Mariola Bednorz
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
| | - Karin Quanz
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
| | - Jacqueline Heger
- Institute of Physiology, Justus-Liebig University of Giessen, Giessen, Germany.
| | - Martina Korfei
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
| | - Jochen Wilhelm
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
- Institute for Lung Health (ILH), Giessen, Germany.
| | - Matthias Hecker
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
| | - Marek Bartkuhn
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
- Institute for Lung Health (ILH), Giessen, Germany.
| | - Stefan Arnhold
- Institute of Veterinary Anatomy, Histology and Embryology, Justus-Liebig University of Giessen, Giessen, Germany.
| | - Andreas Guenther
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
- European IPF Registry & Biobank (eurIPFreg), Giessen, Germany.
- Agaplesion Evangelisches Krankenhaus Mittelhessen, Giessen, Germany
| | - Werner Seeger
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
- Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.
- Institute for Lung Health (ILH), Giessen, Germany.
| | - Rainer Schulz
- Institute of Physiology, Justus-Liebig University of Giessen, Giessen, Germany.
| | - Norbert Weissmann
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
| | - Natascha Sommer
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
| | - Oleg Pak
- Excellence Cluster Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Justus- Liebig University of Giessen, Giessen, Germany.
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Balzano E, De Cunto G, Goracci C, Bartalesi B, Cavarra E, Lungarella G, Lucattelli M. Immunohistochemical Study of Airways Fibrous Remodeling in Smoking Mice. J Histochem Cytochem 2023; 71:577-599. [PMID: 37818941 PMCID: PMC10617442 DOI: 10.1369/00221554231204926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 09/11/2023] [Indexed: 10/13/2023] Open
Abstract
The fibrotic remodeling in chronic obstructive pulmonary disease (COPD) is held responsible for narrowing of small airways and thus for disease progression. Oxidant damage and cell senescence factors are recently involved in airways fibrotic remodeling. Unfortunately, we have no indications on their sequential expression at anatomical sites in which fibrotic remodeling develops in smoking subjects. Using immunohistochemical techniques, we investigated in two strains of mice after cigarette smoke (CS) exposure what happens at various times in airway areas where fibrotic remodeling occurs, and if there also exists correspondence among DNA damage induced by oxidants, cellular senescence, the presence of senescence-secreted factors involved in processes that affect transcription, metabolism as well as apoptosis, and the onset of fibrous remodeling that appears at later times in mice exposed to CS. A clear positivity for fibrogenic cytokines TGF-β, PDGF-B, and CTGF, and for proliferation marker PCNA around airways that will be remodeled is observed in both strains. Increased expression of p16ink4A senescence marker and MyoD is also seen in the same areas. p16ink4A and MyoD can promote cell cycle arrest, terminal differentiation of myofibroblasts, and can oppose their dedifferentiation. Of interest, an early progressive attenuation of SIRT-1 is observed after CS exposure. This intracellular regulatory protein can reduce premature cell senescence. These findings suggest that novel agents, which promote myofibroblast dedifferentiation and/or the apoptosis of senescent cells, may dampen progression of airway changes in smoking COPD subjects.
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Affiliation(s)
- Emilia Balzano
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Giovanna De Cunto
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Chiara Goracci
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Barbara Bartalesi
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Eleonora Cavarra
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Giuseppe Lungarella
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Monica Lucattelli
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
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Li W, Zhang Y, Wang Y, Rong Z, Liu C, Miao H, Chen H, He Y, He W, Chen L. Candidate gene prioritization for chronic obstructive pulmonary disease using expression information in protein-protein interaction networks. BMC Pulm Med 2021; 21:280. [PMID: 34481483 PMCID: PMC8418003 DOI: 10.1186/s12890-021-01646-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 08/23/2021] [Indexed: 11/30/2022] Open
Abstract
Background Identifying or prioritizing genes for chronic obstructive pulmonary disease (COPD), one type of complex disease, is particularly important for its prevention and treatment. Methods In this paper, a novel method was proposed to Prioritize genes using Expression information in Protein–protein interaction networks with disease risks transferred between genes (abbreviated as PEP). A weighted COPD PPI network was constructed using expression information and then COPD candidate genes were prioritized based on their corresponding disease risk scores in descending order. Results Further analysis demonstrated that the PEP method was robust in prioritizing disease candidate genes, and superior to other existing prioritization methods exploiting either topological or functional information. Top-ranked COPD candidate genes and their significantly enriched functions were verified to be related to COPD. The top 200 candidate genes might be potential disease genes in the diagnosis and treatment of COPD. Conclusions The proposed method could provide new insights to the research of prioritizing candidate genes of COPD or other complex diseases with expression information from sequencing or microarray data. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-021-01646-9.
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Affiliation(s)
- Wan Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150000, Heilongjiang, China
| | - Yihua Zhang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150000, Heilongjiang, China
| | - Yahui Wang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150000, Heilongjiang, China
| | - Zherou Rong
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150000, Heilongjiang, China
| | - Chenyu Liu
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150000, Heilongjiang, China
| | - Hui Miao
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150000, Heilongjiang, China
| | - Hongwei Chen
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150000, Heilongjiang, China
| | - Yuehan He
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150000, Heilongjiang, China
| | - Weiming He
- Institute of Opto-Electronics, Harbin Institute of Technology, Harbin, 150000, Heilongjiang, China.
| | - Lina Chen
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150000, Heilongjiang, China.
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Imraish A, Abu-Thiab T, Zihlif M. IL-13 and FOXO3 genes polymorphisms regulate IgE levels in asthmatic patients. Biomed Rep 2021; 14:55. [PMID: 33884198 DOI: 10.3892/br.2021.1431] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 03/29/2021] [Indexed: 01/15/2023] Open
Abstract
Immunoglobulin E (IgE) serves a crucial role in the pathogenesis of several allergic disorders, and elevated levels of total serum IgE have been associated with asthma. IgE is responsible for the release of several asthma-associated inflammatory mediators from mast cells, such as histamine and prostaglandins. The aim of the present study was to assess the association of interleukin (IL)-13 single nucleotide polymorphism (SNP) rs20541 and forkhead box O3a (FOXO3a) SNP rs13217795 with IgE levels in asthmatic patients and a healthy control group. Genetic polymorphism analysis of SNPs was performed using PCR/restriction fragment length polymorphism. Total serum IgE levels were measured using an ELISA kit. Genotypes were grouped into three models: Co-dominant, dominant and recessive. Major and minor alleles for IL-13 SNP rs20541 and FOXO3a SNP rs13217795 were C and T, whereas for IL-13, they were G and A, respectively. There was a significant association between the IL-13 rs20541 SNP and the total IgE serum levels, in which pure minor alleles were associated with a significant reduction (~5x lower) in IgE serum levels compared with the major alleles in asthmatic subjects and to a lesser extent in the control subjects. Additionally, the FOXO3a rs13217795 SNP was associated with a significant increase in total IgE levels (~5x higher) in the asthmatic patients compared with the control subjects. In conclusion, the present study confirmed that there was a significant association between the IL-13 SNP rs20541 and asthma, and an association between the FOXO3a SNP rs13217795 with asthma pathogenicity in Jordanian subjects.
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Affiliation(s)
- Amer Imraish
- Department of Biological Sciences, School of Science, The University of Jordan, Amman, Levant 11942, Jordan
| | - Tuqa Abu-Thiab
- Department of Biological Sciences, School of Science, The University of Jordan, Amman, Levant 11942, Jordan
| | - Malek Zihlif
- Department of Pharmacology, School of Medicine, The University of Jordan, Amman, Levant 11942, Jordan
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Song Q, Chen P, Liu XM. The role of cigarette smoke-induced pulmonary vascular endothelial cell apoptosis in COPD. Respir Res 2021; 22:39. [PMID: 33546691 PMCID: PMC7866753 DOI: 10.1186/s12931-021-01630-1] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 01/20/2021] [Indexed: 12/13/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is one of the most common chronic respiratory diseases with high morbidity and mortality. It has become the fifth most burdened and the third most deadly disease in the global economy and increases year by year. The prevention and treatment of COPD are urgent. Smoking is the main and most common risk factor for COPD. Cigarette smoke (CS) contains a large number of toxic substances, can cause a series of changes in the trachea, lung tissue, pulmonary blood vessels, and promotes the occurrence and development of COPD. In recent years, the development of epigenetics and molecular biology have provided new guidance for revealing the pathogenesis, diagnosis, and treatment of diseases. The latest research indicates that pulmonary vascular endothelial cell apoptosis initiates and participates in the pathogenesis of COPD. In this review, we summarize the current research on the epigenetic mechanisms and molecular biology of CS-induced pulmonary vascular endothelial cell apoptosis in COPD, providing a new research direction for pathogenesis of COPD and a new target for the diagnosis, treatment, and prevention of COPD.
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Affiliation(s)
- Qing Song
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Research Unit of Respiratory Disease, Diagnosis and Treatment Center of Respiratory Disease, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
| | - Ping Chen
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Research Unit of Respiratory Disease, Diagnosis and Treatment Center of Respiratory Disease, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China.
| | - Xiang-Ming Liu
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Research Unit of Respiratory Disease, Diagnosis and Treatment Center of Respiratory Disease, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan, China
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Tosi GM, Regoli M, Altera A, Galvagni F, Arcuri C, Bacci T, Elia I, Realini G, Orlandini M, Bertelli E. Heat Shock Protein 90 Involvement in the Development of Idiopathic Epiretinal Membranes. Invest Ophthalmol Vis Sci 2021; 61:34. [PMID: 32716502 PMCID: PMC7425702 DOI: 10.1167/iovs.61.8.34] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Purpose This work was aimed to further characterize cells of idiopathic epiretinal membranes (iERMs). We wanted to determine the contribution of 90-kDa heat shock protein (HSP90) to sustain the transforming growth factor-β (TGF-β)-mediated signal transduction pathway in iERM. Methods Immunofluorescence and confocal microscopy were carried out on deplasticized sections from 36 epiretinal membranes processed for electron microscopy and on frozen sections from five additional samples with antibodies against α-smooth muscle actin (αSMA), vimentin, glial fibrillary acidic protein (GFAP), SMAD2, HSP90α, type-II TGF-β1 receptor (TβRII), type-I collagen, and type-IV collagen. In addition, Müller MIO-M1 cells were transfected with HSP90 and challenged with TGF-β1. Results Double and triple labeling experiments showed that a variable number of TβRII+ cells were present in 94.1% of tested iERMs and they were mostly GFAP-/αSMA+/vimentin+/HSP90α+. In almost half of the cases these cells contained type-I collagen, suggesting their involvement in matrix deposition. HSP90 overexpressing MIO-M1 cells challenged with TGF-β1 showed increased levels of TβRII, SMAD2, SMAD3, and phosphor-SMAD2. Nuclear SMAD2 staining could be observed in HSP90α+ cells on frozen sections of iERMs. Conclusions Cells in iERMs that express TβRII are also HSP90α+ and show the antigenic profile of myofibroblast-like cells as they are GFAP-/αSMA+/vimentin+. HSP90α-overexpressing MIO-M1 cells challenged with TGF-β1 showed an increased activation of the SMAD pathway implying that HSP90α might play a role in sustaining the TGF-β1-induced fibrotic response of iERM cells.
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Zeng H, Li T, He X, Cai S, Luo H, Chen P, Chen Y. Oxidative stress mediates the apoptosis and epigenetic modification of the Bcl-2 promoter via DNMT1 in a cigarette smoke-induced emphysema model. Respir Res 2020; 21:229. [PMID: 32883320 PMCID: PMC7469342 DOI: 10.1186/s12931-020-01495-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 08/24/2020] [Indexed: 12/15/2022] Open
Abstract
Background Emphysema is a crucial pathological characteristic of chronic obstructive pulmonary disease (COPD). Oxidative stress, apoptosis and epigenetic mechanisms contribute to the pathogenesis of emphysema. However, an attempt to accurately identify whether these mechanisms interact with each other and how they are triggered has never been conducted. Method The total reactive oxygen species (ROS) level, pulmonary apoptosis and B-cell lymphoma/leukemia-2 (Bcl-2) expression, an apoptosis regulator, were detected in samples from COPD patients. Bisulfite sequencing PCR (BSP) was conducted to observe the alterations in the methylation of the Bcl-2 promoter in specimens. The dysregulation of DNA methyltransferase enzyme 1 (DNMT1), a vital DNA methyltransferase enzyme, in the lungs of patients was confirmed through western blotting. To find out interactions between oxidative stress and DNA methylation in emphysema, mouse models were built with antioxidant treatment and DNMT1 silencing, and were examined with the pulmonary apoptosis, Bcl-2 and DNMT1 levels, and epigenetic alterations of Bcl-2. Results Higher ROS levels and pulmonary apoptosis were observed in COPD patients than in healthy controls. Downregulated Bcl-2 expression with increased promoter methylation and DNMT1 protein expression was found in COPD patients. Antioxidant treatment reduced the level of ROS, DNMT1 protein and emphysematous progression in the smoking models. Following DNMT1 blockade, smoking models showed improved lung function, pulmonary apoptosis, emphysematous progression, and increased Bcl-2 protein level with less promoter methylation than emphysema mice. Conclusion Cigarette-induced oxidative stress mediates pulmonary apoptosis and hypermethylation of the Bcl-2 promoter in emphysema models through DNMT1.
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Affiliation(s)
- Huihui Zeng
- Department of Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China.,Research Unit of Respiratory Diseases, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China.,Hunan Centre for Evidence-based Medicine, No. 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Tiao Li
- Department of Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China.,Research Unit of Respiratory Diseases, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China.,Hunan Centre for Evidence-based Medicine, No. 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Xue He
- Department of Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China.,Research Unit of Respiratory Diseases, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China.,Hunan Centre for Evidence-based Medicine, No. 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Shan Cai
- Department of Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China.,Research Unit of Respiratory Diseases, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China.,Hunan Centre for Evidence-based Medicine, No. 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Hong Luo
- Department of Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China.,Research Unit of Respiratory Diseases, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China.,Hunan Centre for Evidence-based Medicine, No. 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Ping Chen
- Department of Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China.,Research Unit of Respiratory Diseases, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China.,Hunan Centre for Evidence-based Medicine, No. 139 Renmin Road, Changsha, 410011, Hunan, China
| | - Yan Chen
- Department of Pulmonary and Critical Care Medicine, the Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China. .,Research Unit of Respiratory Diseases, Central South University, No. 139 Renmin Road, Changsha, 410011, Hunan, China. .,Hunan Centre for Evidence-based Medicine, No. 139 Renmin Road, Changsha, 410011, Hunan, China.
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De Cunto G, Cavarra E, Bartalesi B, Lungarella G, Lucattelli M. Alveolar Macrophage Phenotype and Compartmentalization Drive Different Pulmonary Changes in Mouse Strains Exposed to Cigarette Smoke. COPD 2020; 17:429-443. [PMID: 32597232 DOI: 10.1080/15412555.2020.1783648] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
COPD can manifest itself with different clinical phenotypes characterized by different disease progression and response to therapy. Although a remarkable number of studies have been carried out, little is known about the mechanisms underlying phenotypes that could guide the development of viable future therapies. Several murine strains mirror some human phenotypes after smoke exposure. It was of interest to investigate in these strains whether different pattern of activation of macrophages, and their distribution in lungs, is associated to changes characterizing different phenotypes. We chose C57Bl/6, and Lck deficient mice, which show significant emphysema, DBA/2 mice that develop changes similar to those of "pulmonary fibrosis/emphysema syndrome", p66Shc ko mice that develop bronchiolitis with fibrosis but not emphysema, and finally ICR mice that do not develop changes at 7 months after smoke exposure. Unlike other strains, ICR mice show very few activated macrophages (Mac-3 positive) mostly negative to M1 or M2 markers. On the other hand, a large population of M1 macrophages predominates in the lung periphery of DBA/2, C57Bl/6 and in Lck deficient mice, where emphysema is more evident. M2 macrophages are mainly observed in subpleural and intraparenchymal areas of DBA/2 mice and around bronchioles of p66Shc ko mice where fibrotic changes are present. We observed slight but significant differences in mRNA expression of iNOS, ECF-L, arginase 1, IL-4, IL-13 and TGF-β between air- and smoke-exposed mice. These differences together with the different compartmentalization of macrophages may offer an explanation for the diversity of lesions and their distribution that we observed among the strains.
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Affiliation(s)
- Giovanna De Cunto
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Eleonora Cavarra
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Barbara Bartalesi
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Giuseppe Lungarella
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Monica Lucattelli
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
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De Cunto G, Cavarra E, Bartalesi B, Lucattelli M, Lungarella G. Innate Immunity and Cell Surface Receptors in the Pathogenesis of COPD: Insights from Mouse Smoking Models. Int J Chron Obstruct Pulmon Dis 2020; 15:1143-1154. [PMID: 32547002 PMCID: PMC7246326 DOI: 10.2147/copd.s246219] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 05/03/2020] [Indexed: 12/23/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is mainly associated with smoking habit. Inflammation is the major initiating process whereby neutrophils and monocytes are attracted into the lung microenvironment by external stimuli present in tobacco leaves and in cigarette smoke, which promote chemotaxis, adhesion, phagocytosis, release of superoxide anions and enzyme granule contents. A minority of smokers develops COPD and different molecular factors, which contribute to the onset of the disease, have been put forward. After many years of research, the pathogenesis of COPD is still an object of debate. In vivo models of cigarette smoke-induced COPD may help to unravel cellular and molecular mechanisms underlying the pathogenesis of COPD. The mouse represents the most favored animal choice with regard to the study of immune mechanisms due to its genetic and physiological similarities to humans, the availability of a large variability of inbred strains, the presence in the species of several genetic disorders analogous to those in man, and finally on the possibility to create models “made-to-measure” by genetic manipulation. The review outlines the different response of mouse strains to cigarette smoke used in COPD studies while retaining a strong focus on their relatability to human patients. These studies reveal the importance of innate immunity and cell surface receptors in the pathogenesis of pulmonary injury induced by cigarette smoking. They further advance the way in which we use wild type or genetically manipulated strains to improve our overall understanding of a multifaceted disease such as COPD. The structural and functional features, which have been found in the different strains of mice after chronic exposure to cigarette smoke, can be used in preclinical studies to develop effective new therapeutic agents for the different phenotypes in human COPD.
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Affiliation(s)
- Giovanna De Cunto
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Eleonora Cavarra
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Barbara Bartalesi
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Monica Lucattelli
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Giuseppe Lungarella
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
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10
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Shin HJ, Park H, Shin N, Shin J, Gwon DH, Kwon HH, Yin Y, Hwang JA, Hong J, Heo JY, Kim CS, Joo Y, Kim Y, Kim J, Beom J, Kim DW. p66shc siRNA Nanoparticles Ameliorate Chondrocytic Mitochondrial Dysfunction in Osteoarthritis. Int J Nanomedicine 2020; 15:2379-2390. [PMID: 32308389 PMCID: PMC7152540 DOI: 10.2147/ijn.s234198] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 02/27/2020] [Indexed: 12/12/2022] Open
Abstract
Background Osteoarthritis (OA) is the most common type of joint disease associated with cartilage breakdown. However, the role played by mitochondrial dysfunction in OA remains inadequately understood. Therefore, we investigated the role played by p66shc during oxidative damage and mitochondrial dysfunction in OA and the effects of p66shc downregulation on OA progression. Methods Monosodium iodoacetate (MIA), which is commonly used to generate OA animal models, inhibits glycolysis and biosynthetic processes in chondrocytes, eventually causing cell death. To observe the effects of MIA and poly(lactic-co-glycolic acid) (PLGA)-based nanoparticles, histological analysis, immunohistochemistry, micro-CT, mechanical paw withdrawal thresholds, quantitative PCR, and measurement of oxygen consumption rate and extracellular acidification rate were conducted. Results p-p66shc was highly expressed in cartilage from OA patients and rats with MIA-induced OA. MIA caused mitochondrial dysfunction and reactive oxygen species (ROS) production, and the inhibition of p66shc phosphorylation attenuated MIA-induced ROS production in human chondrocytes. Inhibition of p66shc by PLGA-based nanoparticles-delivered siRNA ameliorated pain behavior, cartilage damage, and inflammatory cytokine production in the knee joints of MIA-induced OA rats. Conclusion p66shc is involved in cartilage degeneration in OA. By delivering p66shc-siRNA-loaded nanoparticles into the knee joints with OA, mitochondrial dysfunction-induced cartilage damage can be significantly decreased. Thus, p66shc siRNA PLGA nanoparticles may be a promising option for the treatment of OA.
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Affiliation(s)
- Hyo Jung Shin
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea.,Department of Anatomy and Cell Biology, Brain Research Institute, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea
| | - Hyewon Park
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea.,Department of Anatomy and Cell Biology, Brain Research Institute, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea
| | - Nara Shin
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea.,Department of Anatomy and Cell Biology, Brain Research Institute, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea
| | - Juhee Shin
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea.,Department of Anatomy and Cell Biology, Brain Research Institute, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea
| | - Do Hyeong Gwon
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea.,Department of Anatomy and Cell Biology, Brain Research Institute, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea
| | - Hyeok Hee Kwon
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea.,Department of Pediatrics
| | - Yuhua Yin
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea.,Department of Anatomy and Cell Biology, Brain Research Institute, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea
| | - Jeong-Ah Hwang
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea.,Department of Anatomy and Cell Biology, Brain Research Institute, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea
| | - Jinpyo Hong
- Department of Anatomy and Cell Biology, Brain Research Institute, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea
| | - Jun Young Heo
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea.,Biochemistry.,Infection Control Convergence Research Center
| | - Cuk-Seong Kim
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea.,Physiology Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Yongbum Joo
- Department of Orthopedics, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Youngmo Kim
- Department of Orthopedics, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Jinhyun Kim
- Division of Rheumatology, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Jaewon Beom
- Department of Rehabilitation Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Republic of Korea
| | - Dong Woon Kim
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea.,Department of Anatomy and Cell Biology, Brain Research Institute, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea
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11
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Wang D, Wang T, Wang R, Zhang X, Wang L, Xiang Z, Zhuang L, Shen S, Wang H, Gao Q, Wang Y. Suppression of p66Shc prevents hyperandrogenism-induced ovarian oxidative stress and fibrosis. J Transl Med 2020; 18:84. [PMID: 32066482 PMCID: PMC7027222 DOI: 10.1186/s12967-020-02249-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 01/28/2020] [Indexed: 01/29/2023] Open
Abstract
Background Rats with hyperandrogen-induced polycystic ovary syndrome (PCOS) have been shown to develop ovarian oxidative stress (OS) and fibrosis. The Sirt1 agonist, resveratrol, can reduce OS through inhibiting p66Shc in other models of OS. Methods We created a rat PCOS model with increased OS levels following treatment with one of the two androgens, dehydroepiandrosterone (DHEA) and dihydrotestosterone (DHT). The PCOS related features were determined by measurement of malondialdehyde (MDA) and superoxide dismutase (SOD) levels or by examining the reactive oxygen species (ROS) levels using the DCF-DA probe. The potential mechanisms by which p66Shc/Sirt1 mediates ovarian fibrosis were explored by western blotting, quantitative reverse transcription-PCR, immunofluorescence staining, and immunohistochemistry. Results Hyperandrogen dramatically augmented OS and activation of fibrotic factors in the ovary. Our data demonstrated that treatment with resveratrol enhanced Sirt1 and decreased ovarian OS as well as inhibited phosphorylation of p66Shc both in vivo and in vitro. The treatment suppressed fibrotic factor activation and improved ovarian morphology. Lentivirus- or siRNA-mediated p66Shc knockdown resulted in a dramatic enhancement of Sirt1 expression, down-regulation of ROS and suppression of fibrotic factors in granulosa cells. Moreover, p66Shc overexpression markedly increased the expression of fibrotic factors. Additionally, silencing Sirt1 induced a dramatic increase in p66Shc and enhanced activation of fibrotic factors. Conclusions p66Shc may be a direct target of Sirt1 for inducing ROS and thus promoting fibrosis. Further exploration of the mechanisms of p66Shc in both fibrosis and OS may provide novel therapeutic strategies that will facilitate the improvement in PCOS symptoms and reproductive functions.
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Affiliation(s)
- Daojuan Wang
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Tingyu Wang
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Rong Wang
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Xinlin Zhang
- Department of Cardiology, Affiliated Drum Tower Hospital, Nanjing University School of Medicine, 321 Zhongshan Road, 210008, Nanjing, Jiangsu Province, China
| | - Lei Wang
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Zou Xiang
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Lingjia Zhuang
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Shanmei Shen
- Department of Endocrinology, The Affiliated Drum Tower Hospital, Medical School, Nanjing University, Nanjing, 210093, China
| | - Hongwei Wang
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China
| | - Qian Gao
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China.
| | - Yong Wang
- State Key Laboratory of Analytacal Chemistry for Life Science & Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, 210093, China.
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12
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Camarinho R, Garcia PV, Choi H, Rodrigues AS. Chronic exposure to non-eruptive volcanic activity as cause of bronchiolar histomorphological alteration and inflammation in mice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 253:864-871. [PMID: 31349195 DOI: 10.1016/j.envpol.2019.07.056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/02/2019] [Accepted: 07/10/2019] [Indexed: 06/10/2023]
Abstract
It is estimated that 10% of the worldwide population lives in the vicinity of an active volcano. However, volcanogenic air pollution studies are still outnumbered when compared with anthropogenic air pollution studies, representing an unknown risk to human populations inhabiting volcanic areas worldwide. This study was carried out in the Azorean archipelago of Portugal, in areas with active non-eruptive volcanism. The hydrothermal emissions within the volcanic complex of Furnas (São Miguel Island) are responsible for the emission of nearly 1000 tons of CO2 per day, along with H2S, the radioactive gas - radon, among others. Besides the gaseous emissions, metals (e.g., Hg, Cd, Al, Ni) and particulate matter are also released into the environment. We test the hypothesis that chronic exposure to volcanogenic air pollution alters the histomorphology of the bronchioles and terminal bronchioles, using the house mouse, Mus musculus, as bioindicator species. Mus musculus were live-captured at three different locations: two villages with active volcanism and a village without any type of volcanic activity (reference site). The histomorphology of the bronchioles (diameter, epithelium thickness, smooth muscle layer thickness, submucosa thickness and the histological evaluation of the peribronchiolar inflammation) and of the terminal bronchioles (epithelium thickness and classification) were evaluated. Mice chronically exposed to volcanogenic air pollution presented bronchioles with increased epithelial thickness, increased smooth muscle layer, increased submucosa thickness and increased peribronchiolar inflammation. Similarly, terminal bronchioles presented structural alterations consistent with bronchodysplasia. For the first time we demonstrate that chronic exposure to non-eruptive volcanically active environments causes inflammation and histomorphological alterations in mice lower airways consistent with asthma and chronic bronchitis. These results reveal that chronic exposure to non-eruptive volcanic activity represents a risk factor that can affect the health of the respiratory system of humans inhabiting hydrothermal areas.
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Affiliation(s)
- R Camarinho
- Faculty of Sciences and Technology, University of the Azores, 9501-801 Ponta Delgada, Portugal; IVAR - Instituto de Vulcanologia e Avaliação de Riscos, University of the Azores, 9501-801 Ponta Delgada, Portugal.
| | - P V Garcia
- Faculty of Sciences and Technology, University of the Azores, 9501-801 Ponta Delgada, Portugal; CE3C - cE3c, Centre for Ecology, Evolution and Environmental Changes/Azorean Biodiversity Group, University of the Azores, 9501-801 Ponta Delgada, Azores, Portugal.
| | - H Choi
- University of Albany, Departments of Environmental Health Sciences, Epidemiology, and Biostatistics, University at Albany School of Public Health, One University Place, Rm 153, Rensselaer, NY 12144-3456, USA.
| | - A S Rodrigues
- Faculty of Sciences and Technology, University of the Azores, 9501-801 Ponta Delgada, Portugal; IVAR - Instituto de Vulcanologia e Avaliação de Riscos, University of the Azores, 9501-801 Ponta Delgada, Portugal.
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13
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Lin L, Hou G, Han D, Yin Y, Kang J, Wang Q. Ursolic acid alleviates airway-vessel remodeling and muscle consumption in cigarette smoke-induced emphysema rats. BMC Pulm Med 2019; 19:103. [PMID: 31170951 PMCID: PMC6555740 DOI: 10.1186/s12890-019-0826-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 02/28/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND This study assessed the effects of ursolic acid (UA) on airway-vessel remodeling and muscle atrophy in cigarette smoke (CS)-induced emphysema rats and investigated potential underlying mechanisms. METHODS Emphysema was induced in a rat model with 3 months of CS exposure. Histology and immunohistochemistry (IHC) stains were used to assess airway-vessel remodeling and muscle atrophy-associated changes. Levels of cleaved-caspase3, 8-OHdG, and S100A4 were measured in airways and associated vessels to evaluate cell apoptosis, oxidant stress, epithelial-to-mesenchymal transition (EMT), and endothelial-to-mesenchymal transition (EndMT)-associated factors. Western blot and/or IHC analyses were performed to measure transforming growth factor-beta 1(TGF-β1)/Smad2.3, alpha-smooth muscle actin (α-SMA), and insulin-like growth factor 1 (IGF1) expression. We also gave cultured HBE and HUVEC cells Cigarette Smoke Extract (CSE) administration and UA intervention. Using Western blot method to measure TGF-β1/Smad2.3, α-SMA, S100A4, and IGF1 molecules expression. RESULTS UA decreased oxidant stress and cell apoptosis in airway and accompanying vascular walls of cigarette smoke-induced emphysema model rats. UA alleviated EMT, EndMT, changes associated with airway-vessel remodeling and muscle atrophy. The UA effects were associated with IGF1 and TGF-β1/Smad2.3 pathways. CONCLUSIONS UA reduced EMT, EndMT, airway-vessel remodeling, and musculi soleus atrophy in CS-induced emphysema model rats at least partly through IGF1 and TGF-β1/Smad2.3 signaling pathways.
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Affiliation(s)
- Li Lin
- Institute of Respiratory Disease, The First Hospital of China Medical University, No. 155 Nanjing North Street, Shenyang, 110001 China
| | - Gang Hou
- Institute of Respiratory Disease, The First Hospital of China Medical University, No. 155 Nanjing North Street, Shenyang, 110001 China
| | - Dan Han
- Institute of Respiratory Disease, The First Hospital of China Medical University, No. 155 Nanjing North Street, Shenyang, 110001 China
| | - Yan Yin
- Institute of Respiratory Disease, The First Hospital of China Medical University, No. 155 Nanjing North Street, Shenyang, 110001 China
| | - Jian Kang
- Institute of Respiratory Disease, The First Hospital of China Medical University, No. 155 Nanjing North Street, Shenyang, 110001 China
| | - Qiuyue Wang
- Institute of Respiratory Disease, The First Hospital of China Medical University, No. 155 Nanjing North Street, Shenyang, 110001 China
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14
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Zhao Y, Wang Z, Feng D, Zhao H, Lin M, Hu Y, Zhang N, Lv L, Gao Z, Zhai X, Tian X, Yao J. p66Shc Contributes to Liver Fibrosis through the Regulation of Mitochondrial Reactive Oxygen Species. Theranostics 2019; 9:1510-1522. [PMID: 30867846 PMCID: PMC6401497 DOI: 10.7150/thno.29620] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 01/15/2019] [Indexed: 01/09/2023] Open
Abstract
Background: p66Shc is a redox enzyme that mediates mitochondrial reactive oxygen species (ROS) generation. p66Shc inhibition confers protection against liver injury, however, its functional contribution to liver fibrosis remains unclear. The aim of this study is to explore the involvement of p66Shc in liver fibrosis and underlying mechanism of p66Shc by focusing on mitochondrial ROS. Methods: p66Shc-silenced mice were injected with carbon tetrachloride (CCl4). Primary hepatic stellate cells (HSCs) were performed with p66Shc silencing or overexpression prior to TGF-β1 stimulation. Results: p66Shc expression was progressively elevated in mice with CCl4-induced liver fibrosis, and p66Shc silencing in vivo significantly attenuated fibrosis development, reducing liver damage, oxidative stress and HSC activation, indicated by the decreased α-SMA, CTGF and TIMP1 levels. Furthermore, in primary HSCs, p66Shc-mediated mitochondrial ROS production played a vital role in mitochondrial morphology and cellular metabolism. Knockdown of p66Shc significantly inhibited mitochondrial ROS production and NOD-like receptor protein 3 (NLRP3) inflammasome activation, which were closely associated with HSC activation, indicated by the decreased α-SMA, CTGF and TIMP1 levels. However, p66Shc overexpression exerted the opposite effects, which were suppressed by a specific mitochondrial ROS scavenger (mito-TEMPO). More importantly, p66Shc expression was significantly increased in human with liver fibrosis, accompanied by NLRP3 inflammasome activation. Conclusions: p66Shc is a key regulator of liver fibrosis by mediating mitochondrial ROS production, which triggers NLRP3 inflammasome activation.
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15
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De Cunto G, Bartalesi B, Cavarra E, Balzano E, Lungarella G, Lucattelli M. Ongoing Lung Inflammation and Disease Progression in Mice after Smoking Cessation: Beneficial Effects of Formyl-Peptide Receptor Blockade. THE AMERICAN JOURNAL OF PATHOLOGY 2018; 188:2195-2206. [PMID: 30031729 DOI: 10.1016/j.ajpath.2018.06.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 06/04/2018] [Accepted: 06/18/2018] [Indexed: 01/24/2023]
Abstract
The most important risk factor for chronic obstructive pulmonary disease (COPD) is cigarette smoking. Until now, smoking cessation (SC) is the only treatment effective in slowing down the progression of the disease. However, in many cases SC may only relieve the airflow obstruction and inflammatory response. Consequently, a persistent lung inflammation in ex-smokers is associated with progressive deterioration of respiratory functions. This is an increasingly important clinical problem whose mechanistic basis remains poorly understood. Available therapies do not adequately suppress inflammation and are not able to stop the vicious cycle that is at the basis of persistent inflammation. In addition, in mice after SC an ongoing inflammation and progressive lung deterioration is observed. After 4 months of smoke exposure mice show mild emphysematous changes. Lung inflammation is still present after SC, and emphysema progresses during the next 6-month period of observation. Destruction of alveolar walls is associated with airways remodeling (goblet cell metaplasia and peribronchiolar fibrosis). Modulation of formyl-peptide receptor signaling with antagonists mitigates inflammation and prevents deterioration of lung structures. This study suggests an important role for N-formylated peptides in the progression and exacerbation of COPD. Modulating formyl-peptide receptor signal should be explored as a potential new therapy for COPD.
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Affiliation(s)
- Giovanna De Cunto
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Barbara Bartalesi
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Eleonora Cavarra
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Emilia Balzano
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Giuseppe Lungarella
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Monica Lucattelli
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy.
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16
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Amarin JZ, Naffa RG, Suradi HH, Alsaket YM, Obeidat NM, Mahafza TM, Zihlif MA. An intronic single-nucleotide polymorphism (rs13217795) in FOXO3 is associated with asthma and allergic rhinitis: a case-case-control study. BMC MEDICAL GENETICS 2017; 18:132. [PMID: 29141605 PMCID: PMC5688628 DOI: 10.1186/s12881-017-0494-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 11/09/2017] [Indexed: 11/10/2022]
Abstract
BACKGROUND Asthma and allergic rhinitis are respiratory diseases with a significant global burden. Forkhead box O3 (FOXO3) is a gene involved in the etiology of a number of respiratory diseases. The objective of this study is to assess the association of rs13217795, an intronic FOXO3 single-nucleotide polymorphism, with asthma and allergic rhinitis. METHODS In this case-case-control genetic association study, genotyping was conducted using the PCR-RFLP method. Genotype-based associations were investigated under the general, recessive, and dominant models of disease penetrance using binomial logistic regression; and, allele-based associations were tested using Pearson's chi-squared test. RESULTS The final study population consisted of 94 controls, 124 asthmatics, and 110 allergic rhinitis patients. The general and recessive models of disease penetrance were statistically significant for both case-control comparisons. Under the general model, the odds of the asthma phenotype were 1.46 (0.64 to 3.34) and 3.42 (1.37 to 8.57) times higher in heterozygotes and derived allele homozygotes, respectively, compared to ancestral allele homozygotes. The corresponding odds ratios for the allergic rhinitis phenotype were 1.05 (0.46 to 2.40) and 2.35 (0.96 to 5.73), respectively. The dominant model of disease penetrance was not statistically significant. The minor allele in all study groups was the ancestral allele, with a frequency of 0.49 in controls. There was no deviation from Hardy-Weinberg equilibrium in controls. Both case-control allele-based associations were statistically significant. CONCLUSIONS Herein we present the first report of the association between rs13217795 and allergic rhinitis, and the first independent verification of the association between rs13217795 and asthma. Marker selection in future genetic association studies of asthma and allergic rhinitis should include functional polymorphisms in linkage disequilibrium with rs13217795.
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Affiliation(s)
| | - Randa G Naffa
- Molecular Biology Research Laboratory, School of Medicine, The University of Jordan, Amman, Jordan
| | - Haya H Suradi
- School of Medicine, The University of Jordan, Amman, Jordan
| | | | - Nathir M Obeidat
- Department of Internal Medicine, School of Medicine, The University of Jordan, Amman, Jordan
| | - Tareq M Mahafza
- Department of Special Surgery, School of Medicine, The University of Jordan, Amman, Jordan
| | - Malek A Zihlif
- Department of Pharmacology, School of Medicine, The University of Jordan, Queen Rania Al-Abdullah Street, Amman, 11942, Jordan.
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17
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Cheng XY, Li YY, Huang C, Li J, Yao HW. AMP-activated protein kinase reduces inflammatory responses and cellular senescence in pulmonary emphysema. Oncotarget 2017; 8:22513-22523. [PMID: 28186975 PMCID: PMC5410241 DOI: 10.18632/oncotarget.15116] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 01/23/2017] [Indexed: 12/13/2022] Open
Abstract
Current drug therapy fails to reduce lung destruction of chronic obstructive pulmonary disease (COPD). AMP-activated protein kinase (AMPK) has emerged as an important integrator of signals that control energy balance and lipid metabolism. However, there are no studies regarding the role of AMPK in reducing inflammatory responses and cellular senescence during the development of emphysema. Therefore, we hypothesize that AMPK reduces inflammatroy responses, senescence, and lung injury. To test this hypothesis, human bronchial epithelial cells (BEAS-2B) and small airway epithelial cells (SAECs) were treated with cigarette smoke extract (CSE) in the presence of a specific AMPK activator (AICAR, 1 mM) and inhibitor (Compound C, 5 μM). Elastase injection was performed to induce mouse emphysema, and these mice were treated with a specific AMPK activator metformin as well as Compound C. AICAR reduced, whereas Compound C increased CSE-induced increase in IL-8 and IL-6 release and expression of genes involved in cellular senescence. Knockdown of AMPKα1/α2 increased expression of pro-senescent genes (e.g., p16, p21, and p66shc) in BEAS-2B cells. Prophylactic administration of an AMPK activator metformin (50 and 250 mg/kg) reduced while Compound C (4 and 20 mg/kg) aggravated elastase-induced airspace enlargement, inflammatory responses and cellular senescence in mice. This is in agreement with therapeutic effect of metformin (50 mg/kg) on airspace enlargement. Furthermore, metformin prophylactically protected against but Compound C further reduced mitochondrial proteins SOD2 and SIRT3 in emphysematous lungs. In conclusion, AMPK reduces abnormal inflammatory responses and cellular senescence, which implicates as a potential therapeutic target for COPD/emphysema.
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Affiliation(s)
- Xiao-Yu Cheng
- School of Pharmacy, Anhui Medical University, Hefei, The People's Republic of China
| | - Yang-Yang Li
- School of Pharmacy, Anhui Medical University, Hefei, The People's Republic of China
| | - Cheng Huang
- School of Pharmacy, Anhui Medical University, Hefei, The People's Republic of China
| | - Jun Li
- School of Pharmacy, Anhui Medical University, Hefei, The People's Republic of China
| | - Hong-Wei Yao
- School of Pharmacy, Anhui Medical University, Hefei, The People's Republic of China
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18
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Giorgio M, Stendardo M, Migliaccio E, Pelicci PG. P66SHC deletion improves fertility and progeric phenotype of late-generation TERC-deficient mice but not their short lifespan. Aging Cell 2016; 15:446-54. [PMID: 26968134 PMCID: PMC4854904 DOI: 10.1111/acel.12448] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/29/2015] [Indexed: 11/30/2022] Open
Abstract
Oxidative stress and telomere attrition are considered the driving factors of aging. As oxidative damage to telomeric DNA favors the erosion of chromosome ends and, in turn, telomere shortening increases the sensitivity to pro-oxidants, these two factors may trigger a detrimental vicious cycle. To check whether limiting oxidative stress slows down telomere shortening and related progeria, we have investigated the effect of p66SHC deletion, which has been shown to reduce oxidative stress and mitochondrial apoptosis, on late-generation TERC (telomerase RNA component)-deficient mice having short telomeres and reduced lifespan. Double mutant (TERC(-/-) p66SHC(-/-) ) mice were generated, and their telomere length, fertility, and lifespan investigated in different generations. Results revealed that p66SHC deletion partially rescues sterility and weight loss, as well as organ atrophy, of TERC-deficient mice, but not their short lifespan and telomere erosion. Therefore, our data suggest that p66SHC-mediated oxidative stress and telomere shortening synergize in some tissues (including testes) to accelerate aging; however, early mortality of late-generation mice seems to be independent of any link between p66SHC-mediated oxidative stress and telomere attrition.
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Affiliation(s)
- Marco Giorgio
- Experimental Oncology Department; European Institute of Oncology; Via Ripamonti 435 20141 Milan Italy
| | - Massimo Stendardo
- Experimental Oncology Department; European Institute of Oncology; Via Ripamonti 435 20141 Milan Italy
| | - Enrica Migliaccio
- Experimental Oncology Department; European Institute of Oncology; Via Ripamonti 435 20141 Milan Italy
| | - Pier Giuseppe Pelicci
- Experimental Oncology Department; European Institute of Oncology; Via Ripamonti 435 20141 Milan Italy
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19
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Wieckowski MR, Deus CM, Couto R, Oparka M, Lebiedzińska‐Arciszewska M, Duszyński J, Oliveira PJ. Measuring p66Shc Signaling Pathway Activation and Mitochondrial Translocation in Cultured Cells. ACTA ACUST UNITED AC 2015; 66:25.6.1-25.6.21. [DOI: 10.1002/0471140856.tx2506s66] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Mariusz R. Wieckowski
- Department of Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences Warsaw Poland
| | - Cláudia M. Deus
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra Cantanhede Portugal
| | - Renata Couto
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra Cantanhede Portugal
| | - Monika Oparka
- Department of Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences Warsaw Poland
| | | | - Jerzy Duszyński
- Department of Biochemistry, Nencki Institute of Experimental Biology, Polish Academy of Sciences Warsaw Poland
| | - Paulo J. Oliveira
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra Cantanhede Portugal
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