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Yuan Z, Lei W, Xing X, He X, Huang X, Wei L, Lv Y, Qiu S, Yuan Z, Wang J, Yang M. Genetic association between smoking and DLCO in idiopathic pulmonary fibrosis patients. BMC Pulm Med 2024; 24:163. [PMID: 38570751 PMCID: PMC10993445 DOI: 10.1186/s12890-024-02974-2] [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: 12/16/2023] [Accepted: 03/19/2024] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND Observational studies have shown that smoking is related to the diffusing capacity of the lungs for carbon monoxide (DLCO) in individuals with idiopathic pulmonary fibrosis (IPF). Nevertheless, further investigation is needed to determine the causal effect between these two variables. Therefore, we conducted a study to investigate the causal relationship between smoking and DLCO in IPF patients using two-sample Mendelian randomization (MR) analysis. METHODS Large-scale genome-wide association study (GWAS) datasets from individuals of European descent were analysed. These datasets included published lifetime smoking index (LSI) data for 462,690 participants and DLCO data for 975 IPF patients. The inverse-variance weighting (IVW) method was the main method used in our analysis. Sensitivity analyses were performed by MR‒Egger regression, Cochran's Q test, the leave-one-out test and the MR-PRESSO global test. RESULTS A genetically predicted increase in LSI was associated with a decrease in DLCO in IPF patients [ORIVW = 0.54; 95% CI 0.32-0.93; P = 0.02]. CONCLUSIONS Our study suggested that smoking is associated with a decrease in DLCO. Patients diagnosed with IPF should adopt an active and healthy lifestyle, especially by quitting smoking, which may be effective at slowing the progression of IPF.
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Affiliation(s)
- Ziheng Yuan
- Department of Clinical Laboratory, Yunnan Molecular Diagnostic Center, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Wanyang Lei
- Department of Clinical Laboratory, Yunnan Molecular Diagnostic Center, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Xiqian Xing
- Department of Respiratory and Critical Care, Affiliated Hospital of Yunnan University, Kunming, China
| | - Xiaohua He
- Department of Respiratory and Critical Care, Affiliated Hospital of Yunnan University, Kunming, China
| | - Xiaoxian Huang
- Department of Respiratory and Critical Care, Affiliated Hospital of Yunnan University, Kunming, China
| | - Li Wei
- Department of Respiratory and Critical Care, Affiliated Hospital of Yunnan University, Kunming, China
| | - Yuanyuan Lv
- Department of Respiratory and Critical Care, Affiliated Hospital of Yunnan University, Kunming, China
| | - Shuyi Qiu
- Department of Clinical Laboratory, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Ziyu Yuan
- Department of Clinical Laboratory Medicine, Yunnan Cancer Hospital, Yunnan Cancer Center, The Third Affiliated Hospital of Kunming Medical University, 650118, Kunming, China
| | - Jiyang Wang
- Department of Cardiovascular Surgery, Affiliated Hospital of Yunnan University, Kunming, China.
| | - Mei Yang
- Department of Respiratory and Critical Care, Affiliated Hospital of Yunnan University, Kunming, China.
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Xu J, Yu Z, Liu X. Angiotensin-(1-7) suppresses airway inflammation and airway remodeling via inhibiting ATG5 in allergic asthma. BMC Pulm Med 2023; 23:422. [PMID: 37919667 PMCID: PMC10623740 DOI: 10.1186/s12890-023-02719-7] [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: 07/14/2023] [Accepted: 10/19/2023] [Indexed: 11/04/2023] Open
Abstract
BACKGROUND Angiotensin (Ang)-(1-7) can reduce airway inflammation and airway remodeling in allergic asthma. Autophagy-related 5 (ATG5) has attracted wide attentions in asthma. However, the effects of Ang-(1-7) on ATG5-mediated autophagy in allergic asthma are unclear. METHODS In this study, human bronchial epithelial cell (BEAS-2B) and human bronchial smooth muscle cell (HBSMC) were treated with different dose of Ang-(1-7) to observe changes of cell viability. Changes of ATG5 protein expression were measured in 10 ng/mL of interleukin (IL)-13-treated cells. Transfection of ATG5 small interference RNA (siRNA) or ATG5 cDNA in cells was used to analyze the effects of ATG5 on secretion of cytokines in the IL-13-treated cells. The effects of Ang-(1-7) were compared to the effects of ATG5 siRNA transfection or ATG5 cDNA transfection in the IL-13-treated cells. In wild-type (WT) mice and ATG5 knockout (ATG5-/-) mice, ovalbumin (OVA)-induced airway inflammation, fibrosis and autophagy were observed. In the OVA-induced WT mice, Ang-(1-7) treatment was performed to observe its effects on airway inflammation, fibrosis and autophagy. RESULTS The results showed that ATG5 protein level was decreased with Ang-(1-7) dose administration in the IL-13-treated BEAS-2B and IL13-treated HBSMC. Ang-(1-7) played similar results to ATG5 siRNA that it suppressed the secretion of IL-25 and IL-13 in the IL-13-treated BEAS-2B cells, and inhibited the expression of transforming growth factor (TGF)-β1 and α-smooth muscle actin (α-SMA) protein in the IL-13-treated HBSMC cells. ATG5 cDNA treatment significantly increased the secretion of IL-25 and IL-13 and expression of TGF-β1 and α-SMA protein in IL-13-treated cells. Ang-(1-7) treatment suppressed the effects of ATG5 cDNA in the IL-13-treated cells. In OVA-induced WT mice, Ang-(1-7) treatment suppressed airway inflammation, remodeling and autophagy. ATG5 knockout also suppressed the airway inflammation, remodeling and autophagy. CONCLUSIONS Ang-(1-7) treatment suppressed airway inflammation and remodeling in allergic asthma through inhibiting ATG5, providing an underlying mechanism of Ang-(1-7) for allergic asthma treatment.
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Affiliation(s)
- Jianfeng Xu
- Department of Pulmonary and Critical Care Medicine, Yantai Yuhuangding Hospital, No.20, Yuhuangding East Road, Zhifu District, Yantai, 264001, China
| | - Zhenyu Yu
- Department of Anesthesiology, Yantai Yuhuangding Hospital, Yantai, 246001, China
| | - Xueping Liu
- Department of Pulmonary and Critical Care Medicine, Yantai Yuhuangding Hospital, No.20, Yuhuangding East Road, Zhifu District, Yantai, 264001, China.
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Tang H, Zhang Y, Wang Q, Zeng Z, Wang X, Li Y, Wang Z, Ma N, Xu G, Zhong X, Guo L, Yuan X, Wang X. Astaxanthin attenuated cigarette smoke extract-induced apoptosis via decreasing oxidative DNA damage in airway epithelium. Biomed Pharmacother 2023; 167:115471. [PMID: 37699317 DOI: 10.1016/j.biopha.2023.115471] [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: 04/18/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/14/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a lung inflammatory disease that is associated with environmental allergic component exposure. Cigarette smoke is an environmental toxicant that induces lung malfunction leading to various pulmonary diseases. Astaxanthin (AST) is a carotenoid that shows antioxidant and anti-inflammatory activities which might be a promising candidate for COPD therapy. In this study, we released that AST could attenuate cigarette smoke-induced DNA damage and apoptosis in vivo and in vitro. AST administration ameliorated cigarette smoke extract (CSE)-induced activation of Caspase-3 and apoptosis. Pretreated mice with AST significantly decrease CSE-induced DNA damage which shows lower nuclear γ-H2AX level. AST treatment also dramatically reduces the production of intracellular reactive oxygen species (ROS) by suppressing the expression of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase enzyme 4 (NOX4) and dual oxidase 1 (DUOX1). Taken together, this study suggested that AST can decrease CSE-induced DNA damage and apoptosis by inhibiting NOX4/DUOX1 expression that promotes ROS generation. AST may be a potential protective agent against CSE-associated lung disease that is worth in-depth investigation.
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Affiliation(s)
- Hongmei Tang
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Yun Zhang
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China; Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Qiao Wang
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Ziling Zeng
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Xiaoyun Wang
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Yuejiao Li
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Zhibin Wang
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Ning Ma
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Guofeng Xu
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Xiaolin Zhong
- Department of Gastroenterology Organization: The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Linlin Guo
- Department of Microbiology and Immunology, The Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Obstetrics and Gynecology, The Ohio State University Wexner Medical Center, The Ohio State University, Columbus, OH, USA.
| | - Xiefang Yuan
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.
| | - Xing Wang
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.
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Maleki M, Aliboroni A, Kheiri A, Kaffashian MR, Kheiry M. Association of the ACE2-Angiotensin1-7-Mas axis with lung damage caused by cigarette smoke exposure: a systematic review. REVIEWS ON ENVIRONMENTAL HEALTH 2023:reveh-2023-0028. [PMID: 37534601 DOI: 10.1515/reveh-2023-0028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 06/19/2023] [Indexed: 08/04/2023]
Abstract
Through the Mas receptor, angiotensin-(1-7) [Ang-(1-7)] has been shown to have a key role in the development of lung inflammation. This systematic review (SR) sought to identify the relationship between lung damage brought on by exposure to cigarette smoke (CS) and the ACE2-Ang-(1-7)-Mas pathway. In this investigation, relevant keywords were used to search PubMed (MEDLINE), Scopus (Elsevier), and Institute for Scientific Information (ISI) Web of Science up to December 2022. Nine studies were chosen because they satisfied the inclusion/exclusion criteria. The majority of research concluded that exposure to CS increased the risk of lung damage. Smoking cigarettes is the main cause of COPD because it causes massive amounts of reactive oxygen and nitrogen species to enter the lungs, which stimulate the production of inflammatory cytokines like IL-1 β, IL-6, and TNF-α, as well as the invasion of inflammatory cells like neutrophils and macrophages. These findings support the renin-angiotensin system's (RAS) involvement in the pathophysiology of smoking-induced damage. Additionally, via stimulating pro-inflammatory mediators, aberrant RAS activity has been linked to lung damage. Lung inflammation's etiology has been shown to be significantly influenced by the protective known RAS arm ACE2-Ang-(1-7)-Mas. In conclusion, these are important for informing policymakers to pass legislation limiting the use of smoking and other tobacco to prevent their harmful effects.
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Affiliation(s)
- Maryam Maleki
- Department of Physiology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Alireza Aliboroni
- Department of Physiology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Amin Kheiri
- Department of Endodontics, Faculty of Dentistry, Ilam University of Medical Sciences, Ilam, Iran
| | | | - Maryam Kheiry
- Non-Communicable Diseases Research Center, Ilam University of Medical Sciences, Ilam, Iran
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Gan PXL, Liao W, Linke KM, Mei D, Wu XD, Wong WSF. Targeting the renin angiotensin system for respiratory diseases. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2023; 98:111-144. [PMID: 37524485 DOI: 10.1016/bs.apha.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
Renin-angiotensin system (RAS) plays an indispensable role in regulating blood pressure through its effects on fluid and electrolyte balance. As an aside, cumulative evidence from experimental to clinical studies supports the notion that dysregulation of RAS contributes to the pro-inflammatory, pro-oxidative, and pro-fibrotic processes that occur in pulmonary diseases like asthma, chronic obstructive pulmonary disease (COPD), idiopathic pulmonary fibrosis (IPF), and acute lung injury (ALI). Pharmacological intervention of the various RAS components can be a novel therapeutic strategy for the treatment of these respiratory diseases. In this chapter, we first give a recent update on the RAS, and then compile, review, and analyse recent reports on targeting RAS components as treatments for respiratory diseases. Inhibition of the pro-inflammatory renin, angiotensin-converting enzyme (ACE), angiotensin (Ang) II, and Ang II type 1 receptor (AT1R) axis, and activation of the protective ACE2, AT2R, Ang (1-7), and Mas receptor axis have demonstrated varying degrees of efficacies in experimental respiratory disease models or in human trials. The newly identified alamandine/Mas-related G-protein-coupled receptor member D pathway has shown some therapeutic promise as well. However, our understanding of the RAS ligand-and-receptor interactions is still inconclusive, and the modes of action and signaling cascade mediating the newly identified RAS receptors remain to be better characterized. Clinical data are obviously lacking behind the promising pre-clinical findings of certain well-established molecules targeting at different pathways of the RAS in respiratory diseases. Translational human studies should be the focus for RAS drug development in lung diseases in the next decade.
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Affiliation(s)
- Phyllis X L Gan
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, Singapore, Singapore
| | - W Liao
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, Singapore, Singapore; Singapore-HUJ Alliance for Research Enterprise, National University of Singapore, Singapore, Singapore
| | - Kira M Linke
- Department of Pharmacology, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
| | - D Mei
- Department of Respiratory and Critical Care Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, P.R. China
| | - X D Wu
- Department of Respiratory and Critical Care Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, P.R. China
| | - W S Fred Wong
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, Singapore, Singapore; Singapore-HUJ Alliance for Research Enterprise, National University of Singapore, Singapore, Singapore; Drug Discovery and Optimization Platform, National University Health System, Singapore, Singapore.
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6
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Wang W, Zhang Y, Huang W, Yuan Y, Hong Q, Xie Z, Li L, Chen Y, Li X, Meng Y. Alamandine/MrgD axis prevents TGF-β1-mediated fibroblast activation via regulation of aerobic glycolysis and mitophagy. J Transl Med 2023; 21:24. [PMID: 36635651 PMCID: PMC9838062 DOI: 10.1186/s12967-022-03837-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 12/19/2022] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Idiopathic pulmonary fibrosis is a chronic progressive, lethal disease in which ectopic lung fibroblast (LF) activation plays a vital part. We have previously shown that alamandine (ALA) exerts anti-fibrosis effects via the MAS-related G-protein coupled receptor D (MrgD). Here, we further investigate how it moderates transforming growth factor β1 (TGF-β1)-induced LF activation by regulating glucose metabolism and mitochondria autophagy (mitophagy). METHODS In vitro, we examined glycolysis-related protein hexokinase 2 (HK2), 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3), and lactic acid in cells treated with TGF-β1. The oxygen consumption rate and the extracellular acidification rate were detected using Seahorse assays. Then, mitophagy was evaluated using transmission electron microscopy, mt-Keima, and the co-localization of Parkin and COX IV with LC3 and LAMP1, respectively. The autophagic degradation of HK2 and PFKFB3 was detected by 3MA and bafilomycin A1 and assessed by their co-localization with LC3 and LAMP1, respectively. The effects of ALA on LF activation markers collagen I and α-SMA were detected. The effects of ALA on glucose metabolism, mitophagy, and the activation of LF were also investigated in vivo. RESULTS We found that the ALA/MrgD axis improved TGF-β1-mediated LF activation by repressing glycolysis by downregulating HK2 and PFKFB3 expression. Lactic acid sustained positive feedback between glycolysis and LF activation by maintaining the expression of HK2 and PFKFB3. We also showed that glycolysis enhancement resulted from blocking the autophagic degradation of HK2 and PFKFB3 while upregulated mRNA levels by TGF-β1, while all of those improved by ALA adding. Importantly, we determined that moderation of Parkin/LC3-mediated mitophagy by TGF-β1 also promotes glycolysis but is reversed by ALA. Furthermore, we proved that ALA counteracts the effects of bleomycin on HK2, PFKFB3, LC3, Parkin, and LF activation in vivo. CONCLUSION In this study, we show that the ALA/MrgD axis prevents TGF-β1-mediated fibroblast activation via regulation of aerobic glycolysis and mitophagy.
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Affiliation(s)
- Wei Wang
- grid.284723.80000 0000 8877 7471Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510000 China
| | - Yue Zhang
- grid.284723.80000 0000 8877 7471Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510000 China
| | - Wenhui Huang
- grid.284723.80000 0000 8877 7471Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510000 China
| | - Yafei Yuan
- grid.284723.80000 0000 8877 7471Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510000 China
| | - Qiaohui Hong
- grid.284723.80000 0000 8877 7471Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510000 China
| | - Zhanzhan Xie
- grid.284723.80000 0000 8877 7471Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510000 China
| | - Lijuan Li
- grid.284723.80000 0000 8877 7471Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510000 China
| | - Yixin Chen
- grid.284723.80000 0000 8877 7471Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510000 China
| | - Xu Li
- grid.284723.80000 0000 8877 7471Department of Emergency Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510000 China ,grid.443397.e0000 0004 0368 7493Ministry of Education, Key Laboratory of Hainan Trauma and Disaster Rescue, College of Emergency and Trauma, Hainan Medical University, Haikou, 571199 China
| | - Ying Meng
- grid.284723.80000 0000 8877 7471Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510000 China
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Chen XS, Cui JR, Meng XL, Wang SH, Wei W, Gao YL, Shou ST, Liu YC, Chai YF. Angiotensin-(1-7) ameliorates sepsis-induced cardiomyopathy by alleviating inflammatory response and mitochondrial damage through the NF-κB and MAPK pathways. J Transl Med 2023; 21:2. [PMID: 36593471 PMCID: PMC9807106 DOI: 10.1186/s12967-022-03842-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 12/20/2022] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND There is no available viable treatment for Sepsis-Induced Cardiomyopathy (SIC), a common sepsis complication with a higher fatality risk. The septic patients showed an abnormal activation of the renin angiotensin (Ang) aldosterone system (RAAS). However, it is not known how the Ang II and Ang-(1-7) affect SIC. METHODS Peripheral plasma was collected from the Healthy Control (HC) and septic patients and Ang II and Ang-(1-7) protein concentrations were measured. The in vitro and in vivo models of SIC were developed using Lipopolysaccharide (LPS) to preliminarily explore the relationship between the SIC state, Ang II, and Ang-(1-7) levels, along with the protective function of exogenous Ang-(1-7) on SIC. RESULTS Peripheral plasma Ang II and the Ang II/Ang-(1-7) levels in SIC-affected patients were elevated compared to the levels in HC and non-SIC patients, however, the HC showed higher Ang-(1-7) levels. Furthermore, peripheral plasma Ang II, Ang II/Ang-(1-7), and Ang-(1-7) levels in SIC patients were significantly correlated with the degree of myocardial injury. Additionally, exogenous Ang-(1-7) can attenuate inflammatory response, reduce oxidative stress, maintain mitochondrial dynamics homeostasis, and alleviate mitochondrial structural and functional damage by inhibiting nuclear factor-kappa B (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathways, thus alleviating SIC. CONCLUSIONS Plasma Ang-(1-7), Ang II, and Ang II/Ang-(1-7) levels were regarded as significant SIC biomarkers. In SIC, therapeutic targeting of RAAS, for example with Ang-(1-7), may exert protective roles against myocardial damage.
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Affiliation(s)
- Xin-Sen Chen
- grid.412645.00000 0004 1757 9434Department of Emergency Medicine, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052 China
| | - Jing-Rui Cui
- grid.412645.00000 0004 1757 9434Department of Emergency Medicine, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052 China
| | - Xiang-Long Meng
- grid.412645.00000 0004 1757 9434Department of Emergency Medicine, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052 China
| | - Shu-Hang Wang
- grid.412645.00000 0004 1757 9434Department of Emergency Medicine, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052 China
| | - Wei Wei
- grid.412645.00000 0004 1757 9434Department of Emergency Medicine, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052 China
| | - Yu-Lei Gao
- grid.412645.00000 0004 1757 9434Department of Emergency Medicine, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052 China
| | - Song-Tao Shou
- grid.412645.00000 0004 1757 9434Department of Emergency Medicine, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052 China
| | - Yan-Cun Liu
- grid.412645.00000 0004 1757 9434Department of Emergency Medicine, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052 China
| | - Yan-Fen Chai
- grid.412645.00000 0004 1757 9434Department of Emergency Medicine, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052 China
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Xu J, Yu Z, Li W. Kaempferol inhibits airway inflammation induced by allergic asthma through NOX4-Mediated autophagy. Hum Exp Toxicol 2023; 42:9603271231154227. [PMID: 36803065 DOI: 10.1177/09603271231154227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
BACKGROUND Kaempferol has important medicinal value in the treatment of asthma. However, its mechanism of action has not been fully understood and needs to be explored and studied. METHODS A binding activity of kaempferol with nicotinamide adenine dinucleotide phosphate oxidase 4 (NOX4) was analyzed by molecular docking. Human bronchial epithelial cells (BEAS-2B) were treated with different concentrations (0, 1, 5, 10, 20, 40 μg/mL) of kaempferol to select its suitable concentration. In the transforming growth factor (TGF)-β1-induced BEAS-2B, cells were treated with 20 μg/mL kaempferol or 20 μM GLX35132 (a NOX4 inhibitor) to analyze its effects on NOX4-mediated autophagy. In the ovalbumin (OVA)-induced mice, 20 mg/kg kaempferol or 3.8 mg/kg GLX351322 administration was performed to analyze the therapeutic effects of kaempferol on NOX4-mediated autophagy. An autophagy activator, rapamycin, was used to confirm the mechanism of kaempferol in treatment of allergic asthma. RESULTS A good binding of kaempferol to NOX4 (score = -9.2 kcal/mol) was found. In the TGF-β1-induced BEAS-2B, the NOX4 expression was decreased with kaempferol dose increase. The secretions of IL-25 and IL-33, and the NOX4-mediated autophagy were significantly decreased by kaempferol treatment in the TGF-β1-induced BEAS-2B. In the OVA-challenged mice, kaempferol treatment improved airway inflammation and remodeling through suppressing NOX4-mediated autophagy. The rapamycin treatment clearly hampered the therapeutic effects of kaempferol in the TGF-β1-induced cells and OVA-induced mice. CONCLUSIONS This study identifies kaempferol binds NOX4 to perform its functions in the treatment of allergic asthma, providing an effective therapeutic strategy in the further treatment of asthma.
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Affiliation(s)
- Jianfeng Xu
- Department of Pulmonary and Critical Care Medicine, 117747Yantai Yuhuangding Hospital, Yantai, China
| | - Zhenyu Yu
- Department of Anesthesiology, 117747Yantai Yuhuangding Hospital, Yantai, China
| | - Wei Li
- Department of Pulmonary and Critical Care Medicine, 117747Yantai Yuhuangding Hospital, Yantai, China
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Yue YL, Zhang MY, Liu JY, Fang LJ, Qu YQ. The role of autophagy in idiopathic pulmonary fibrosis: from mechanisms to therapies. Ther Adv Respir Dis 2022; 16:17534666221140972. [PMID: 36468453 PMCID: PMC9726854 DOI: 10.1177/17534666221140972] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is an interstitial pulmonary disease with an extremely poor prognosis. Autophagy is a fundamental intracellular process involved in maintaining cellular homeostasis and regulating cell survival. Autophagy deficiency has been shown to play an important role in the progression of pulmonary fibrosis. This review focused on the six steps of autophagy, as well as the interplay between autophagy and other seven pulmonary fibrosis related mechanisms, which include extracellular matrix deposition, myofibroblast differentiation, epithelial-mesenchymal transition, pulmonary epithelial cell dysfunction, apoptosis, TGF-β1 pathway, and the renin-angiotensin system. In addition, this review also summarized autophagy-related signaling pathways such as mTOR, MAPK, JAK2/STAT3 signaling, p65, and Keap1/Nrf2 signaling during the development of IPF. Furthermore, this review also illustrated the commonly used autophagy detection methods, the currently approved antifibrotic drugs pirfenidone and nintedanib, and several prospective compounds targeting autophagy for the treatment of IPF.
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Affiliation(s)
- Yue-Liang Yue
- Shandong Key Laboratory of Infectious Respiratory Diseases, Laboratory of Basic Medical Sciences, Department of Pulmonary and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China
| | - Meng-Yu Zhang
- Shandong Key Laboratory of Infectious Respiratory Diseases, Laboratory of Basic Medical Sciences, Department of Pulmonary and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China
| | - Jian-Yu Liu
- Shandong Key Laboratory of Infectious Respiratory Diseases, Laboratory of Basic Medical Sciences, Department of Pulmonary and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China
| | - Li-Jun Fang
- Shandong Key Laboratory of Infectious Respiratory Diseases, Laboratory of Basic Medical Sciences, Department of Pulmonary and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China
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10
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Zhang Y, Li T, Pan M, Wang W, Huang W, Yuan Y, Xie Z, Chen Y, Peng J, Li X, Meng Y. SIRT1 prevents cigarette smoking-induced lung fibroblasts activation by regulating mitochondrial oxidative stress and lipid metabolism. J Transl Med 2022; 20:222. [PMID: 35568871 PMCID: PMC9107262 DOI: 10.1186/s12967-022-03408-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/24/2022] [Indexed: 12/06/2022] Open
Abstract
BACKGROUND Cigarette smoking (CS) is a strong risk factor for idiopathic pulmonary fibrosis (IPF). It can activate lung fibroblasts (LF) by inducing redox imbalance. We previously showed that clearing mitochondrial reactive oxygen species (mtROS) protects against CS-induced pulmonary fibrosis. However, the precise mechanisms of mtROS in LF need further investigation. Here we focused on mtROS to elucidate how it was regulated by CS in LF and how it contributed to LF activation. METHODS We treated cells with 1% cigarette smoking extract (CSE) and examined mtROS level by MitoSOX™ indicator. And the effect of CSE on expression of SIRT1, SOD2, mitochondrial NOX4 (mtNOX4), fatty acid oxidation (FAO)-related protein PPARα and CPT1a and LF activation marker Collagen I and α-SMA were detected. Nile Red staining was performed to show cellular lipid content. Then, lipid droplets, autophagosome and lysosome were marked by Bodipy 493/503, LC3 and LAMP1, respectively. And lipophagy was evaluated by the colocalization of lipid droplets with LC3 and LAMP1. The role of autophagy on lipid metabolism and LF activation were explored. Additionally, the effect of mitochondria-targeted ROS scavenger mitoquinone and SIRT1 activator SRT1720 on mitochondrial oxidative stress, autophagy flux, lipid metabolism and LF activation were investigated in vitro and in vivo. RESULTS We found that CS promoted mtROS production by increasing mtNOX4 and decreasing SOD2. Next, we proved mtROS inhibited the expression of PPARα and CPT1a. It also reduced lipophagy and upregulated cellular lipid content, suggesting lipid metabolism was disturbed by CS. In addition, we showed both insufficient FAO and lipophagy resulted from blocked autophagy flux caused by mtROS. Moreover, we uncovered decreased SIRT1 was responsible for mitochondrial redox imbalance. Furthermore, we proved that both SRT1720 and mitoquinone counteracted the effect of CS on NOX4, SOD2, PPARα and CPT1a in vivo. CONCLUSIONS We demonstrated that CS decreased SIRT1 to activate LF through dysregulating lipid metabolism, which was due to increased mtROS and impaired autophagy flux. These events may serve as therapeutic targets for IPF patients.
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Affiliation(s)
- Yue Zhang
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Ting Li
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Miaoxia Pan
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Wei Wang
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Wenhui Huang
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yafei Yuan
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhanzhan Xie
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yixin Chen
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jun Peng
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xu Li
- Department of Emergency Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
- Ministry of Education, Key Laboratory of Hainan Trauma and Disaster Rescue, College of Emergency and Trauma, Hainan Medical University, Haikou, China.
| | - Ying Meng
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
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11
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Gao Q, Chang X, Yang M, Zheng J, Gong X, Liu H, Li K, Wang X, Zhan H, Li S, Feng S, Sun X, Sun Y. LncRNA MEG3 restrained pulmonary fibrosis induced by NiO NPs via regulating hedgehog signaling pathway-mediated autophagy. ENVIRONMENTAL TOXICOLOGY 2022; 37:79-91. [PMID: 34608745 DOI: 10.1002/tox.23379] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/18/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Long noncoding RNA maternally expressed gene 3 (lncRNA MEG3) was down-regulated in pulmonary fibrosis of rats induced by Nickel oxide nanoparticles (NiO NPs), while the downstream regulatory mechanisms of MEG3 remain unclear. This study aimed to investigate the relationship among MEG3, Hedgehog (Hh) signaling pathway and autophagy in pulmonary fibrosis caused by NiO NPs. The pulmonary fibrosis model in rats was constructed by intratracheal instillation of 0.015, 0.06, and 0.24 mg/kg NiO NPs twice a week for 9 weeks. Collagen deposition model was established by treating A549 cells with 25, 50, and 100 μg/mL NiO NPs for 24 h. Our results indicated that NiO NPs activated Hh pathway, down-regulated the expression of MEG3, and reduced autophagy activity in vivo and in vitro. Meanwhile, the autophagy process was promoted by Hh pathway inhibitor (CDG-0449), while the collagen formation in A549 cells was reduced by autophagy activator (Rapamycin). Furthermore, the overexpressed MEG3 inhibited the activation of Hh pathway, resulting in autophagy activity enhancement along with collagen formation reduction. In summary, lncRNA MEG3 can restrain pulmonary fibrosis induced by NiO NPs via regulating hedgehog signaling pathway-mediated autophagy, which may serve as a potential therapeutic strategy for pulmonary fibrosis.
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Affiliation(s)
- Qing Gao
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Xuhong Chang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Mengmeng Yang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Jinfa Zheng
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Xuefeng Gong
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Han Liu
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Kun Li
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Xiaoxia Wang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Haibing Zhan
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Sheng Li
- Department of Public Health, The First People's Hospital of Lanzhou city, Lanzhou, China
| | - Sanwei Feng
- Institute of Occupational Diseases, Gansu Baoshihua Hospital, Lanzhou, China
| | - Xingchang Sun
- Institute of Occupational Diseases, Gansu Baoshihua Hospital, Lanzhou, China
| | - Yingbiao Sun
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
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12
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Gupta D, Kumar A, Mandloi A, Shenoy V. Renin angiotensin aldosterone system in pulmonary fibrosis: Pathogenesis to therapeutic possibilities. Pharmacol Res 2021; 174:105924. [PMID: 34607005 DOI: 10.1016/j.phrs.2021.105924] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/21/2021] [Accepted: 09/29/2021] [Indexed: 01/12/2023]
Abstract
Pulmonary fibrosis is a devastating lung disease with multifactorial etiology characterized by alveolar injury, fibroblast proliferation and excessive deposition of extracellular matrix proteins, which progressively results in respiratory failure and death. Accumulating evidence from experimental and clinical studies supports a central role of the renin angiotensin aldosterone system (RAAS) in the pathogenesis and progression of idiopathic pulmonary fibrosis. Angiotensin II (Ang II), a key vasoactive peptide of the RAAS mediates pro-inflammatory and pro-fibrotic effects on the lungs, adversely affecting organ function. Recent years have witnessed seminal discoveries in the field of RAAS. Identification of new enzymes, peptides and receptors has led to the development of several novel concepts. Of particular interest is the establishment of a protective axis of the RAAS comprising of Angiotensin converting enzyme 2 (ACE2), Angiotensin-(1-7) [Ang-(1-7)], and the Mas receptor (the ACE2/Ang-(1-7)/Mas axis), and the discovery of a functional role for the Angiotensin type 2 (AT2) receptor. Herein, we will review our current understanding of the role of RAAS in lung fibrogenesis, provide evidence on the anti-fibrotic actions of the newly recognized RAAS components (the ACE2/Ang-(1-7)/Mas axis and AT2 receptor), discuss potential strategies and translational efforts to convert this new knowledge into effective therapeutics for PF.
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Affiliation(s)
- Dipankar Gupta
- Congenital Heart Center, Department of Pediatrics, University of Florida, College of Medicine, Gainesville, FL, USA
| | - Ashok Kumar
- Department of Internal Medicine, Kansas University Medical Center, Kansas City, KS, USA
| | - Avinash Mandloi
- College of Pharmacy, VNS Group of Institutions, Bhopal, India
| | - Vinayak Shenoy
- College of Pharmacy, California Health Sciences University, Clovis, CA, USA.
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13
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Dang R, Yang M, Cui C, Wang C, Zhang W, Geng C, Han W, Jiang P. Activation of angiotensin-converting enzyme 2/angiotensin (1-7)/mas receptor axis triggers autophagy and suppresses microglia proinflammatory polarization via forkhead box class O1 signaling. Aging Cell 2021; 20:e13480. [PMID: 34529881 PMCID: PMC8520723 DOI: 10.1111/acel.13480] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 07/03/2021] [Accepted: 08/05/2021] [Indexed: 12/14/2022] Open
Abstract
Brain renin‐angiotensin (Ang) system (RAS) is implicated in neuroinflammation, a major characteristic of aging process. Angiotensin (Ang) II, produced by angiotensin‐converting enzyme (ACE), activates immune system via angiotensin type 1 receptor (AT1), whereas Ang(1–7), generated by ACE2, binds with Mas receptor (MasR) to restrain excessive inflammatory response. Therefore, the present study aims to explore the relationship between RAS and neuroinflammation. We found that repeated lipopolysaccharide (LPS) treatment shifted the balance between ACE/Ang II/AT1 and ACE2/Ang(1–7)/MasR axis to the deleterious side and treatment with either MasR agonist, AVE0991 (AVE) or ACE2 activator, diminazene aceturate, exhibited strong neuroprotective actions. Mechanically, activation of ACE2/Ang(1–7)/MasR axis triggered the Forkhead box class O1 (FOXO1)‐autophagy pathway and induced superoxide dismutase (SOD) and catalase (CAT), the FOXO1‐targeted antioxidant enzymes. Meanwhile, knockdown of MasR or FOXO1 in BV2 cells, or using the selective FOXO1 inhibitor, AS1842856, in animals, suppressed FOXO1 translocation and compromised the autophagic process induced by MasR activation. We further used chloroquine (CQ) to block autophagy and showed that suppressing either FOXO1 or autophagy abrogated the anti‐inflammatory action of AVE. Likewise, Ang(1–7) also induced FOXO1 signaling and autophagic flux following LPS treatment in BV2 cells. Cotreatment with AS1842856 or CQ all led to autophagic inhibition and thereby abolished Ang(1–7)‐induced remission on NLRP3 inflammasome activation caused by LPS exposure, shifting the microglial polarization from M1 to M2 phenotype. Collectively, these results firstly illustrated the mechanism of ACE2/Ang(1–7)/MasR axis in neuroinflammation, strongly indicating the involvement of FOXO1‐mediated autophagy in the neuroimmune‐modulating effects triggered by MasR activation.
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Affiliation(s)
- Ruili Dang
- Institute of Clinical Pharmacy and Pharmacology Jining First People’s HospitalJining Medical University Jining China
| | - Mengqi Yang
- Institute of Clinical Pharmacy and Pharmacology Jining First People’s HospitalJining Medical University Jining China
| | - Changmeng Cui
- Department of Neurosurgery Affiliated Hospital of Jining Medical University Jining China
| | - Changshui Wang
- Department of Neurosurgery Affiliated Hospital of Jining Medical University Jining China
| | - Wenyuan Zhang
- Department of Pharmacy Zhongshan Affiliated Hospital of Zhongshan University Zhongshan China
| | - Chunmei Geng
- Institute of Clinical Pharmacy and Pharmacology Jining First People’s HospitalJining Medical University Jining China
| | - Wenxiu Han
- Institute of Clinical Pharmacy and Pharmacology Jining First People’s HospitalJining Medical University Jining China
| | - Pei Jiang
- Institute of Clinical Pharmacy and Pharmacology Jining First People’s HospitalJining Medical University Jining China
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14
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Abstract
Autophagy is an evolutionarily conserved process where long-lived and damaged organelles are degraded. Autophagy has been widely associated with several ageing-process as well in diseases such as neurodegeneration, cancer and fibrosis, and is now being utilised as a target in these diseases. Idiopathic pulmonary fibrosis (IPF) is a progressive, interstitial lung disease with limited treatment options available. It is characterised by abnormal extracellular matrix (ECM) deposition by activated myofibroblasts. It is understood that repetitive micro-injuries to aged-alveolar epithelium combined with genetic factors drive the disease. Several groups have demonstrated that autophagy is altered in IPF although whether autophagy has a protective effect or not is yet to be determined. Autophagy has also been shown to influence many other processes including epithelial-mesenchymal transition (EMT) and endothelial-mesenchymal transition (EndMT) which are known to be key in the pathogenesis of IPF. In this review, we summarise the findings of evidence of altered autophagy in IPF lungs, as well as examine its roles within lung fibrosis. Given these findings, together with the growing use of autophagy manipulation in a clinical setting, this is an exciting area for further research in the study of lung fibrosis.
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15
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Gao Q, Chen R, Wu L, Huang Q, Wang XX, Tian YY, Zhang YD. Angiotensin-(1-7) reduces α-synuclein aggregation by enhancing autophagic activity in Parkinson's disease. Neural Regen Res 2021; 17:1138-1145. [PMID: 34558543 PMCID: PMC8552854 DOI: 10.4103/1673-5374.324854] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Abnormal accumulation of α-synuclein contributes to the formation of Lewy bodies in the substantia nigra, which is considered the typical pathological hallmark of Parkinson's disease. Recent research indicates that angiotensin-(1-7) plays a crucial role in several neurodegenerative disorders, including Parkinson's disease, but the underlying mechanisms remain elusive. In this study, we used intraperitoneal administration of rotenone to male Sprague-Dawley rats for 4 weeks to establish a Parkinson's disease model. We investigated whether angiotensin-(1-7) is neuroprotective in this model by continuous administration of angiotensin-(1-7) into the right substantia nigra for 4 weeks. We found that angiotensin-(1-7) infusion relieved characteristic parkinsonian behaviors and reduced α-synuclein aggregation in the substantia nigra. Primary dopaminergic neurons were extracted from newborn Sprague-Dawley rat substantia nigras and treated with rotenone, angiotensin-(1-7), and/or the Mas receptor blocker A-779 for 24 hours. After binding to the Mas receptor, angiotensin-(1-7) attenuated apoptosis and α-synuclein aggregation in rotenone-treated cells. Primary dopaminergic neurons were also treated with angiotensin-(1-7) and/or the autophagy inhibitor 3-methyladenine for 24 hours. Angiotensin-(1-7) increased α-synuclein removal and increased the autophagy of rotenone-treated cells. We conclude that angiotensin-(1-7) reduces α-synuclein aggregation by alleviating autophagy dysfunction in Parkinson's disease. Therefore, the angiotensin-(1-7)/Mas receptor axis plays an important role in the pathogenesis of Parkinson's disease and angiotensin-(1-7) has potential therapeutic value for Parkinson's disease. All experiments were approved by the Biological Research Ethics Committee of Nanjing First Hospital (approval No. DWSY-2000932) in January 2020.
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Affiliation(s)
- Qing Gao
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Rui Chen
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Liang Wu
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Qing Huang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Xi-Xi Wang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - You-Yong Tian
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Ying-Dong Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
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16
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Reyes-García J, Montaño LM, Carbajal-García A, Wang YX. Sex Hormones and Lung Inflammation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1304:259-321. [PMID: 34019274 DOI: 10.1007/978-3-030-68748-9_15] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inflammation is a characteristic marker in numerous lung disorders. Several immune cells, such as macrophages, dendritic cells, eosinophils, as well as T and B lymphocytes, synthetize and release cytokines involved in the inflammatory process. Gender differences in the incidence and severity of inflammatory lung ailments including asthma, chronic obstructive pulmonary disease (COPD), pulmonary fibrosis (PF), lung cancer (LC), and infectious related illnesses have been reported. Moreover, the effects of sex hormones on both androgens and estrogens, such as testosterone (TES) and 17β-estradiol (E2), driving characteristic inflammatory patterns in those lung inflammatory diseases have been investigated. In general, androgens seem to display anti-inflammatory actions, whereas estrogens produce pro-inflammatory effects. For instance, androgens regulate negatively inflammation in asthma by targeting type 2 innate lymphoid cells (ILC2s) and T-helper (Th)-2 cells to attenuate interleukin (IL)-17A-mediated responses and leukotriene (LT) biosynthesis pathway. Estrogens may promote neutrophilic inflammation in subjects with asthma and COPD. Moreover, the activation of estrogen receptors might induce tumorigenesis. In this chapter, we summarize the most recent advances in the functional roles and associated signaling pathways of inflammatory cellular responses in asthma, COPD, PF, LC, and newly occurring COVID-19 disease. We also meticulously deliberate the influence of sex steroids on the development and progress of these common and severe lung diseases.
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Affiliation(s)
- Jorge Reyes-García
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico.,Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY, USA
| | - Luis M Montaño
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Abril Carbajal-García
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Yong-Xiao Wang
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY, USA.
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17
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Zhang Y, Huang W, Zheng Z, Wang W, Yuan Y, Hong Q, Lin J, Li X, Meng Y. Cigarette smoke-inactivated SIRT1 promotes autophagy-dependent senescence of alveolar epithelial type 2 cells to induce pulmonary fibrosis. Free Radic Biol Med 2021; 166:116-127. [PMID: 33609723 DOI: 10.1016/j.freeradbiomed.2021.02.013] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 01/30/2021] [Accepted: 02/08/2021] [Indexed: 12/15/2022]
Abstract
The senescence of alveolar epithelial type 2 (AT2) cells is implicated in the pathogenesis of idiopathic pulmonary fibrosis (IPF). Cigarette smoke (CS) is a strong risk factor for IPF and it is also a pro-senescent factor. Here we aimed to investigate whether and how CS induces AT2 cells senescence via a SIRT1/autophagy dependent pathway. Our results showed that CS extract (CSE) reduced autophagy and mitophagy and increased mitochondrial reactive oxygen species (mitoROS) in MLE-12 cells, an AT2 cell line. The autophagy inducer rapamycin (RAPA) and the mitochondria-targeted antioxidant mitoquinone (mitoQ) inhibited CSE-related senescence and decreased mitoROS. Next, we found that CSE promoted DNA damage, downregulated the nicotinamide adenine dinucleotide (NAD+)/nicotinamide adenine dinucleotide (NADH) ratio and suppressed SIRT1 activity. Activating SIRT1 with its activator SRT1720 attenuated senescence through an autophagy-dependent pathway. The NAD+ precursor nicotinamide mononucleotide and the poly ADP-ribose polymerase (PARP1) inhibitor olaparib also exerted anti-senescent effects by activating SIRT1. Moreover, the results showed that mitoQ and RAPA, in turn, elevated SIRT1 activity by inhibiting DNA damage. Consistent with these results, SRT1720 and mitoQ mitigated CS-induced AT2 cells senescence and lung fibrosis in vivo. Moreover, autophagy in AT2 cells was rescued by SRT1720. Taken together, our results suggested that CS-induced senescence of AT2 cells was due to decreased autophagy mediated by SIRT1 inactivation, which was attributed to competitive consumption of NAD+ caused by DNA damage-induced PARP1 activation. The reduction in autophagy, in turn, decreased SIRT1 activity by promoting mitochondrial oxidative stress-related DNA damage, thereby establishing a positive feedback loop between SIRT1 and autophagy in CS-induced AT2 cells senescence. Consequently, CS-inactivated SIRT1 promoted autophagy-dependent senescence of AT2 cells to induce pulmonary fibrosis.
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Affiliation(s)
- Yue Zhang
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wenhui Huang
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zemao Zheng
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wei Wang
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yafei Yuan
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qiaohui Hong
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jiajia Lin
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xu Li
- Department of Emergency Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Ying Meng
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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18
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Li L, Yang DC, Chen CH. Metabolic reprogramming: A driver of cigarette smoke-induced inflammatory lung diseases. Free Radic Biol Med 2021; 163:392-401. [PMID: 33387604 PMCID: PMC7870291 DOI: 10.1016/j.freeradbiomed.2020.12.438] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/22/2020] [Accepted: 12/24/2020] [Indexed: 12/23/2022]
Abstract
Cigarette smoking is a well-known risk factor for pulmonary diseases, including chronic obstructive pulmonary disease (COPD), asthma and pulmonary fibrosis. Despite major progress in dissecting the mechanisms associated with disease development and progression, findings only represent one aspect of multifaceted disease. A crucial consequence of this approach is that many therapeutic treatments often fail to improve or reverse the disease state as other conditions and variables are insufficiently considered. To expand our understanding of pulmonary diseases, omics approaches, particularly metabolomics, has been emerging in the field. This strategy has been applied to identify putative biomarkers and novel mechanistic insights. In this review, we discuss metabolic profiles of patients with COPD, asthma, and idiopathic pulmonary fibrosis (IPF) with a focus on the direct effects of cigarette smoking in altering metabolic regulation. We next present cell- and animal-based experiments and point out the therapeutic potential of targeting metabolic reprogramming in inflammatory lung diseases. In addition, the obstacles in translating these findings into clinical practice, including potential adverse effects and limited pharmacological efficacy, are also addressed.
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Affiliation(s)
- Linhui Li
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine and Center for Comparative Respiratory Biology and Medicine, University of California Davis, Davis, CA, USA; Division of Nephrology, Department of Internal Medicine, University of California Davis, Davis, CA, USA
| | - David C Yang
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine and Center for Comparative Respiratory Biology and Medicine, University of California Davis, Davis, CA, USA
| | - Ching-Hsien Chen
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine and Center for Comparative Respiratory Biology and Medicine, University of California Davis, Davis, CA, USA; Division of Nephrology, Department of Internal Medicine, University of California Davis, Davis, CA, USA.
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19
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Xiang Y, Fu L, Xiang HX, Zheng L, Tan ZX, Wang LX, Cao W, Xu DX, Zhao H. Correlations among Pulmonary DJ-1, VDR and Nrf-2 in patients with Chronic Obstructive Pulmonary Disease: A Case-control Study. Int J Med Sci 2021; 18:2449-2456. [PMID: 33967623 PMCID: PMC8100631 DOI: 10.7150/ijms.58452] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 04/02/2021] [Indexed: 02/06/2023] Open
Abstract
Parkinson protein 7 (PARK7)/DJ-1 (DJ-1) is a redox sensitive molecular and stabilizer of nuclear factor erythroid 2-related factor 2 (Nrf-2). Nrf-2 regulates the downstream antioxidant defense system and exerts a significant function in patients with chronic obstructive pulmonary disease (COPD). Vitamin D receptor (VDR) is the nuclear receptor that regulates the downstream target genes. This study aimed to analyze the associations among pulmonary function, DJ-1, VDR and Nrf-2 in COPD patients. Serum was collected from 180 COPD patients and control subjects. Thirty-five lung tissues were obtained. DJ-1 was measured using ELISA and western blotting. Nrf-2 and VDR were detected by immunohistochemistry. Serum and pulmonary DJ-1 levels were lower in COPD patients than those in control subjects. Pulmonary VDR-positive nuclei were reduced in COPD patients. Nrf-2-positive nuclei were reduced in lung tissues of COPD patients. On the contrary, Nrf-2-related downstream target proteins were elevated in COPD patients. Further correlation analysis indicated that forced expiratory volume in 1 second (FEV1) was positively associated with pulmonary DJ-1, VDR and Nrf-2 in patients with COPD. In addition, there were positive correlations among DJ-1, VDR and Nrf-2 in lung tissues of COPD patients. In conclusion, DJ-1, VDR and Nrf-2 were decreased in COPD patients compared with control subjects. The reduction of DJ-1 and VDR associating with Nrf-2 downregulation may be involved in the process of COPD.
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Affiliation(s)
- Ying Xiang
- Respiratory and critical care medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China.,Department of Toxicology, Anhui Medical University, Hefei, 230032, China
| | - Lin Fu
- Respiratory and critical care medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China.,Department of Toxicology, Anhui Medical University, Hefei, 230032, China
| | - Hui-Xian Xiang
- Respiratory and critical care medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Ling Zheng
- Respiratory and critical care medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Zhu-Xia Tan
- Respiratory and critical care medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China.,Department of Toxicology, Anhui Medical University, Hefei, 230032, China
| | - Li-Xiang Wang
- Respiratory and critical care medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Wei Cao
- Respiratory and critical care medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - De-Xiang Xu
- Department of Toxicology, Anhui Medical University, Hefei, 230032, China
| | - Hui Zhao
- Respiratory and critical care medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China.,Department of Toxicology, Anhui Medical University, Hefei, 230032, China
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Angiotensin-(1-7) Prevents Lipopolysaccharide-Induced Autophagy via the Mas Receptor in Skeletal Muscle. Int J Mol Sci 2020; 21:ijms21249344. [PMID: 33302427 PMCID: PMC7762589 DOI: 10.3390/ijms21249344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 11/27/2020] [Accepted: 12/04/2020] [Indexed: 12/18/2022] Open
Abstract
Skeletal muscle atrophy, which occurs in lipopolysaccharide (LPS)-induced sepsis, causes a severe muscle function reduction. The increased autophagy contributes to sepsis-induced skeletal muscle atrophy in a model of LPS injection, increasing LC3II/LC3I ratio, autophagy flux, and autophagosomes. Angiotensin-(1-7) (Ang-(1-7)) has anti-atrophic effects via the Mas receptor in skeletal muscle. However, the impact of Ang-(1-7) on LPS-induced autophagy is unknown. In this study, we determined the effect of Ang-(1-7) on sepsis-induced muscle autophagy. C57BL6 wild-type (WT) mice and mice lacking the Mas receptor (KO Mas) were injected with LPS together with the systemic administration of Ang-(1-7) to determine autophagy in skeletal muscle. We also evaluated autophagy and p38 and c-Jun N-terminal kinase (JNK)activation. Our results show that Ang-(1-7) prevents LPS-induced autophagy in the diaphragm, tibialis anterior, and gastrocnemius of WT mice, which is demonstrated by a decrease in the LC3II/LC3I ratio and mRNA levels of lc3b and ctsl. This effect was lost in KO Mas mice, suggesting the role of the Mas receptor. The results in C2C12 cells show that Ang-(1-7) reduces several LPS-dependent effects, such as autophagy (LC3II/LC3I ratio, autophagic flux, and autophagosomes), activation of p38 and JNK, B-cell lymphoma-2 (BCL2) phosphorylation, and disassembly of the Beclin1/BCL2 complex. In conclusion, Ang-(1-7)/Mas receptor reduces LPS-induced autophagy in skeletal muscle. In vitro assays indicate that Ang-(1-7) prevents LPS-induced autophagy and modifies the MAPK signaling and the disassembly of a complex involved at the beginning of autophagy.
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21
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Activation of angiotensin II type-2 receptor protects against cigarette smoke-induced COPD. Pharmacol Res 2020; 161:105223. [PMID: 33017650 PMCID: PMC7530556 DOI: 10.1016/j.phrs.2020.105223] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/13/2020] [Accepted: 09/23/2020] [Indexed: 12/13/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is the third leading cause of death globally. Cumulative evidence has implicated renin-angiotensin system (RAS) in the pathogenesis of COPD. This study aimed to investigate potential protective effects of angiotensin II type-2 receptor (AT2R) activation in cigarette smoke (CS)-induced COPD models. Compound 21 (C21), a selective and potent non-peptide small molecule AT2R agonist, was evaluated for anti-inflammatory, anti-oxidative and anti-remodeling activities in a two-week (acute) and an eight-week (chronic) CS-induced COPD models. C21 inhibited CS-induced increases in macrophage and neutrophil counts, pro-inflammatory cytokines and oxidative damage markers in bronchoalveolar lavage (BAL) fluid, and TGF-β1 in lung tissues, from COPD models. C21 restored phosphatase activities and reduced phospho-p38 MAPK, phospho-ERK and p65 subunit of NF-κB levels in CS-exposed lung tissues. C21 also suppressed CS-induced increases in α-Sma, Mmp9, Mmp12 and hydroxyproline levels in lung tissues, and neutrophil elastase activity in BAL fluid. C21 modulated RAS in CS-exposed lungs by downregulating Ang II but upregulating Ang-(1–7) and Mas receptor levels. C21 prevented CS-induced emphysema and improved lung functions in chronic COPD model. We report here for the first time the protective effects of AT2R agonist C21 against CS-induced COPD, and provide strong evidence for further development of AT2R agonist for the treatment of COPD.
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Li S, Li Y, Zhang Y, Li S, Zhang M, Jin F, Wei Z, Yang Y, Gao X, Mao N, Ge X, Xu H, Yang F. N-Acetyl-Seryl-Asparyl-Lysyl-Proline regulates lung renin angiotensin system to inhibit epithelial-mesenchymal transition in silicotic mice. Toxicol Appl Pharmacol 2020; 408:115255. [PMID: 33007385 DOI: 10.1016/j.taap.2020.115255] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/22/2020] [Accepted: 09/25/2020] [Indexed: 12/16/2022]
Abstract
Silicosis is a major public health concern with various contributing factors. The renin-angiotensin system (RAS)is a critical regulator in the pathogenesis of this disease. We focused on two key RAS enzymes, angiotensin-converting enzyme (ACE) and angiotensin-converting enzyme 2 (ACE2), to elucidate the activation of the ACE-angiotensin II (Ang II)-angiotensin II receptor 1 (AT1) axis and the inhibition of the ACE2-angiotensin-(1-7) [Ang-(1-7)]-Mas receptor axis in C57BL/6mice following SiO2 treatment. Silica exposure caused nodule formation, pulmonary interstitial fibrosis, epithelial-mesenchymal transition (EMT), abnormal deposition of extracellular matrix, and impaired lung function in mice. These effects were attenuated by the inhibition of ACE (captopril), blockade of the AT1(losartan), or systemic knockdown of the Ace gene. These effects were exacerbated by the inhibition of ACE2 (MLN-4760), blockade of the Mas (A779), or knockdown of the Ace2 gene. N-Acetyl-Seryl-Asparyl-Lysyl-Proline (Ac-SDKP), an anti-fibrotic peptide, ameliorated the silica-exposure-induced pathological changes by targeting the RAS system by activating the protective ACE2-Ang-(1-7)-Mas axis and inhibiting the deleterious ACE-Ang II-AT1 axis, thereby exerting a protective effect. This was confirmed in mouse lung type II epithelial cells (MLE-12) pretreated with Ang II and/or gene silencing separately targeting Ace and Ace2.The effects of Ac-SDKP were similar to those produced by Ace gene silencing and were partly attenuated by Ace2 deficiency. These findings suggested that RAS plays critical roles in the pathomechanism of silicosis fibrosis and that Ac-SDKP regulates lung RAS to inhibit EMT in silicotic mice and MLE-12 cells.
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Affiliation(s)
- Shumin Li
- School of Public Health, North China University of Science and Technology, Tangshan 063210, Hebei, China; School of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Yaqian Li
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063210, Hebei, China; Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Yi Zhang
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Shifeng Li
- School of Public Health, North China University of Science and Technology, Tangshan 063210, Hebei, China; Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Min Zhang
- Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Fuyu Jin
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063210, Hebei, China; Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Zhongqiu Wei
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Yi Yang
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Xuemin Gao
- Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Na Mao
- School of Public Health, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Xingchen Ge
- Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Hong Xu
- School of Public Health, North China University of Science and Technology, Tangshan 063210, Hebei, China; Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China
| | - Fang Yang
- School of Public Health, North China University of Science and Technology, Tangshan 063210, Hebei, China; Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan 063210, Hebei, China.
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23
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Alamandine attenuates hepatic fibrosis by regulating autophagy induced by NOX4-dependent ROS. Clin Sci (Lond) 2020; 134:853-869. [PMID: 32227122 DOI: 10.1042/cs20191235] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 03/10/2020] [Accepted: 03/27/2020] [Indexed: 12/20/2022]
Abstract
Angiotensin II (Ang II) has been reported to aggravate hepatic fibrosis by inducing NADPH oxidase (NOX)-dependent oxidative stress. Alamandine (ALA) protects against fibrosis by counteracting Ang II via the MAS-related G-protein coupled (MrgD) receptor, though the effects of alamandine on hepatic fibrosis remain unknown. Autophagy activated by reactive oxygen species (ROS) is a novel mechanism of hepatic fibrosis. However, whether autophagy is involved in the regulation of Ang II-induced hepatic fibrosis still requires investigation. We explored the effect of alamandine on hepatic fibrosis via regulation of autophagy by redox balance modulation. In vivo, alamandine reduced CCl4-induced hepatic fibrosis, hydrogen peroxide (H2O2) content, protein levels of NOX4 and autophagy impairment. In vitro, Ang II treatment elevated NOX4 protein expression and ROS production along with up-regulation of the angiotensin converting enzyme (ACE)/Ang II/Ang II type 1 receptor (AT1R) axis. These changes resulted in the accumulation of impaired autophagosomes in hepatic stellate cells (HSCs). Treatment with NOX4 inhibitor VAS2870, ROS scavenger N-acetylcysteine (NAC), and NOX4 small interfering RNA (siRNA) inhibited Ang II-induced autophagy and collagen synthesis. Alamandine shifted the balance of renin-angiotensin system (RAS) toward the angiotensin converting enzyme 2 (ACE2)/alamandine/MrgD axis, and inhibited both Ang II-induced ROS and autophagy activation, leading to attenuation of HSCs migration or collagen synthesis. In summary, alamandine attenuated liver fibrosis by regulating autophagy induced by NOX4-dependent ROS.
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Li Y, Liu R, Wu J, Li X. Self-eating: friend or foe? The emerging role of autophagy in fibrotic diseases. Am J Cancer Res 2020; 10:7993-8017. [PMID: 32724454 PMCID: PMC7381749 DOI: 10.7150/thno.47826] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 06/16/2020] [Indexed: 01/18/2023] Open
Abstract
Fibrosis occurs in most human organs including the liver, lung, heart and kidney, and is crucial for the progression of most chronic diseases. As an indispensable catabolic process for intracellular quality control and homeostasis, autophagy occurs in most mammalian cells and is implicated in many biological processes including fibrogenesis. Although advances have been made in understanding autophagy process, the potential role of autophagy in fibrotic diseases remains controversial and has recently attracted a great deal of attention. In the current review, we summarize the commonalities of autophagy affecting different types of fibrosis in different organs, including the liver, lung, heart, and kidney as well as in cystic fibrosis, systematically outline the contradictory results and highlight the distinct role of autophagy during the various stages of fibrosis. In summary, the exact role autophagy plays in fibrogenesis depends on specific cell types and different stimuli, and identifying and evaluating the pathogenic contribution of autophagy in fibrogenesis will promote the discovery of novel therapeutic strategies for the clinical management of these fibrotic diseases.
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25
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Sgalla G, Kulkarni T, Antin-Ozerkis D, Thannickal VJ, Richeldi L. Update in Pulmonary Fibrosis 2018. Am J Respir Crit Care Med 2020; 200:292-300. [PMID: 31022351 DOI: 10.1164/rccm.201903-0542up] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Affiliation(s)
- Giacomo Sgalla
- 1Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Tejaswini Kulkarni
- 2Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama; and
| | - Danielle Antin-Ozerkis
- 3Section of Pulmonary, Critical Care and Sleep Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Victor J Thannickal
- 2Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama; and
| | - Luca Richeldi
- 1Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
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26
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Oral formulation angiotensin-(1-7) therapy attenuates pulmonary and systemic damage in mice with emphysema induced by elastase. Immunobiology 2020; 225:151893. [DOI: 10.1016/j.imbio.2019.12.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 11/14/2019] [Accepted: 12/02/2019] [Indexed: 01/04/2023]
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27
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Sun JC, Du JJ, Li XQ, Li N, Wei W, Sun WY. Depletion of β-arrestin 2 protects against CCl4-induced liver injury in mice. Biochem Biophys Res Commun 2020; 522:485-491. [DOI: 10.1016/j.bbrc.2019.11.093] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 11/14/2019] [Indexed: 12/19/2022]
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28
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Zhao H, Wang Y, Qiu T, Liu W, Yao P. Autophagy, an important therapeutic target for pulmonary fibrosis diseases. Clin Chim Acta 2019; 502:139-147. [PMID: 31877297 DOI: 10.1016/j.cca.2019.12.016] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 12/19/2019] [Accepted: 12/19/2019] [Indexed: 02/07/2023]
Abstract
As an evolutionarily conserved intracellular degradation pathway, autophagy is essential to cellular homeostasis. Several studies have demonstrated that autophagy showed an important effect on some pulmonary fibrosis diseases, including idiopathic pulmonary fibrosis (IPF), cystic fibrosis lung disease, silicosis and smoking-induced pulmonary fibrosis. For example, autophagy mitigates the pathological progression of IPF by regulating the apoptosis of fibroblasts and the senescence of alveolar epithelial cells. In addition, autophagy ameliorates cystic fibrosis lung disease via rescuing transmembrane conductance regulators (CFTRs) to the plasma membrane. Furthermore, autophagy alleviates the silica-induced pulmonary fibrosis by decreasing apoptosis of alveolar epithelial cells in silicosis. However, excessive macrophage autophagy aggravates the pathogenesis of silicosis fibrosis by promoting the proliferation and migration of lung fibroblasts in silicosis. Autophagy is also involved in smoking-induced pulmonary fibrosis, coal workers' pneumoconiosis, ionizing radiation-mediated pulmonary fibrosis and heavy metal nanoparticle-mediated pulmonary fibrosis. In this review, the role and signalling mechanisms of autophagy in the progression of pulmonary fibrosis diseases have been systematically analysed. It has provided a new insight into the therapeutic potential associated with autophagy in pulmonary fibrosis diseases. In conclusion, the targeting of autophagy might prove to be a prospective avenue for the therapeutic intervention of pulmonary fibrosis diseases.
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Affiliation(s)
- Hong Zhao
- Nursing College, University of South China, Hengyang, 421001, China
| | - Yiqun Wang
- Department of Anesthesiology, Affiliated Nanhua Hospital, University of South China, Hengyang, 421002, China
| | - Tingting Qiu
- Nursing College, University of South China, Hengyang, 421001, China
| | - Wei Liu
- Department of Intensive Care Units, Affiliated Nanhua Hospital, University of South China, Hengyang, 421002, China.
| | - Pingbo Yao
- Department of Clinical Technology, Changsha Health Vocational College, Changsha 410100, China.
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29
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Inhibition of Galectin-3 Alleviates Cigarette Smoke Extract-Induced Autophagy and Dysfunction in Endothelial Progenitor Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:7252943. [PMID: 31737173 PMCID: PMC6815545 DOI: 10.1155/2019/7252943] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 08/06/2019] [Accepted: 08/13/2019] [Indexed: 01/05/2023]
Abstract
Endothelial progenitor cells (EPCs) have the potential to repair damaged blood vessels and promote angiogenesis. Smoking, an important risk factor for cardiovascular diseases, is associated with impaired functions of EPCs. However, the underlying mechanisms remain unclear. The aim of the study was to investigate the effects of cigarette smoke extract (CSE) on autophagy and dysfunction of EPCs and the involvement of galectin-3 in its effects. EPCs were treated with 8% CSE for 24 h (without affecting cell viability). EPC functions were assessed by tube formation and migration capacity and intracellular ROS and eNOS expression. Autophagy was assessed by autophagic protein expression by Western blotting and immunofluorescence microscopy and autophagosome accumulation by transmission electron microscopy. Galectin-3 expression was measured by real-time PCR, Western blotting, and immunofluorescence microscopy, while phospho-AMPK and phospho-mTOR were measured by Western blotting. EPCs were transfected by shRNA-Gal-3 or shRNA-NC before treatment with CSE to examine the effects of galectin-3 on CSE-induced autophagy and dysfunction of EPCs. CSE-treated EPCs showed decreased tube formation and migration ability and eNOS expression but increased oxidative stress. CSE also induced autophagy which was characterized by a decrease in p62 protein, an increase in LC3B-II/I ratio, and accumulation of autophagosomes. CSE upregulated galectin-3 expression on EPCs. Inhibition of galectin-3 abrogated CSE-induced autophagy and dysfunction of EPCs. CSE activated phospho-AMPK and inhibited phospho-mTOR, and inhibition of galectin-3 abolished CSE's effect on activating phospho-AMPK and inhibiting phospho-mTOR. In conclusion, our results suggest that galectin-3 mediates CSE-induced EPC autophagy and dysfunction, likely via the AMPK/mTOR signaling pathway.
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30
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Shao M, Wen ZB, Yang HH, Zhang CY, Xiong JB, Guan XX, Zhong WJ, Jiang HL, Sun CC, Luo XQ, He XF, Zhou Y, Guan CX. Exogenous angiotensin (1-7) directly inhibits epithelial-mesenchymal transformation induced by transforming growth factor-β1 in alveolar epithelial cells. Biomed Pharmacother 2019; 117:109193. [DOI: 10.1016/j.biopha.2019.109193] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/22/2019] [Accepted: 06/28/2019] [Indexed: 12/19/2022] Open
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31
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Gao X, Xu H, Zhang B, Tao T, Liu Y, Xu D, Cai W, Wei Z, Li S, Zhang H, Mao N, Zhang G, Li D, Jin F, Li S, Zhang L, Liu H, Hao X, Yang F. Interaction of N-acetyl-seryl-aspartyl-lysyl-proline with the angiotensin-converting enzyme 2-angiotensin-(1-7)-Mas axis attenuates pulmonary fibrosis in silicotic rats. Exp Physiol 2019; 104:1562-1574. [PMID: 31290182 DOI: 10.1113/ep087515] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 07/08/2019] [Indexed: 01/28/2023]
Abstract
NEW FINDINGS What is the central question of this study? What are the effects of the antifibrotic peptide acetyl-seryl-aspartyl-lysyl-proline (Ac-SDKP) on the angiotensin-converting enzyme 2 (ACE2)-angiotensin-(1-7)-Mas axis during the occurrence and progression of silicosis? What is the main finding and its importance? Ac-SDKP inhibited lung fibrosis in rats exposed to silica by activation of the ACE2-angiotensin-(1-7)-Mas axis. Angiotensin-(1-7) potentially promotes Ac-SDKP by increasing the level of meprin α, the major synthetase of Ac-SDKP. Thus, the interaction Ac-SDKP and angiotesin-(1-7) in silicosis could provide a new therapeutic strategy. ABSTRACT The central role of angiotensin-converting enzyme (ACE) in the occurrence and progression of silicosis has been established. The antifibrotic peptide acetyl-seryl-aspartyl-lysyl-proline (Ac-SDKP) can be degraded by ACE. The ACE2-angiotensin-(1-7)-Mas axis is protective and acts to counterbalance the detrimental effects of ACE-angiotensin II (Ang II)-Ang II type 1 receptor and exerts antifibrotic effects. Here, we demonstrate an interaction between Ac-SDKP and Ang-(1-7) in the inhibition of collagen deposition and myofibroblast differentiation in rats exposed to silica. Treatment with Ac-SDKP increased the level of ACE2-Ang-(1-7)-Mas in rats or in cultured fibroblasts and decreased the levels of collagen type I and α-smooth muscle actin. Furthermore, exogenous Ang-(1-7) had similar antifibrotic effects and increased the level of meprin α, a major Ac-SDKP synthetase, both in vivo and in vitro. Compared with non-silicotic patients exposed to silica, the level of serum ACE was increased in patients with silicosis phase III; the levels of Ang II and Ang-(1-7) were high in patients with silicosis phase II; and the level of Ac-SDKP was high in the silicosis phase III group. These data imply that Ac-SDKP and Ang-(1-7) have an interactive effect as regulatory peptides of the renin-angiotensin system and exert antifibrotic effects.
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Affiliation(s)
- Xuemin Gao
- Basic Medical College, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Hong Xu
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, Hebei, China
| | - Bonan Zhang
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Tao Tao
- Foreign Languages College, North China University of Science and Technology, Tangshan, Hebei, China
| | - Yalou Liu
- Foreign Languages College, North China University of Science and Technology, Tangshan, Hebei, China
| | - Dingjie Xu
- Traditional Chinese Medicine College, North China University of Science and Technology, Tangshan, Hebei, China
| | - Wenchen Cai
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Zhongqiu Wei
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, Hebei, China
| | - Shifeng Li
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, Hebei, China
| | - Hui Zhang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, Hebei, China
| | - Na Mao
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, Hebei, China
| | - Guizhen Zhang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, Hebei, China
| | - Dan Li
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, Hebei, China
| | - Fuyu Jin
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, Hebei, China
| | - Shumin Li
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Lijuan Zhang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, Hebei, China
| | - Heliang Liu
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, Hebei, China
| | - Xiaohui Hao
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, Hebei, China
| | - Fang Yang
- Basic Medical College, Hebei Medical University, Shijiazhuang, Hebei, China
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32
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Kim Y, Park SY, Jung H, Noh YS, Lee JJ, Hong JY. Inhibition of NADPH Oxidase 4 (NOX4) Signaling Attenuates Tuberculous Pleural Fibrosis. J Clin Med 2019; 8:jcm8010116. [PMID: 30669315 PMCID: PMC6351931 DOI: 10.3390/jcm8010116] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/15/2019] [Accepted: 01/15/2019] [Indexed: 02/06/2023] Open
Abstract
Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase [NOX] enzymes serve several hemostatic and host defense functions in various lung diseases, but the role of NOX4 signaling in tuberculous pleurisy is not well understood. The role of NOX4 signaling in tuberculous pleural fibrosis was studied using invitro pleural mesothelial cell (PMC) experiments and a murine model of Mycobacterium bovis bacillus Calmette–Guérin (BCG) pleural infection. The production of NOX4 reactive oxygen species (NOX4–ROS) and the epithelial mesenchymal transition (EMT) in PMCs were both induced by heat-killed mycobacterium tuberculosis (HKMT). In cultured PMCs, HKMT-induced collagen-1 synthesis and EMT were blocked by pretreatment with small interfering RNA (siRNA) NOX4. Moreover, NOX4–ROS production and subsequent fibrosis were reduced by treatment with losartan and the toll-like receptor 4 (TLR4) inhibitor TAK-242. The HKMT-induced EMT and intracellular ROS production were mediated by NOX4 via the activation of extracellular signal-regulated kinase (ERK) signaling. Finally, in a BCG-induced pleurisy model, recruitment of inflammatory pleural cells, release of inflammatory cytokines, and thickened mesothelial fibrosis were attenuated by SiNOX4 compared to SiCon. Our study identified that HKMT-induced pleural fibrosis is mediated by NOX4–ERK–ROS via TLR4 and Angiotensin II receptor type1 (AT1R). There results suggest that NOX4 may be a novel therapeutic target for intervention in tuberculous pleural fibrosis.
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Affiliation(s)
- Youngmi Kim
- Institute of New frontier Research, Hallym University College of Medicine, Chuncheon 24253, Korea.
| | - So Yeong Park
- Institute of New frontier Research, Hallym University College of Medicine, Chuncheon 24253, Korea.
| | - Harry Jung
- Institute of New frontier Research, Hallym University College of Medicine, Chuncheon 24253, Korea.
| | - You Sun Noh
- Institute of New frontier Research, Hallym University College of Medicine, Chuncheon 24253, Korea.
| | - Jae Jun Lee
- Institute of New frontier Research, Hallym University College of Medicine, Chuncheon 24253, Korea.
| | - Ji Young Hong
- Institute of New frontier Research, Hallym University College of Medicine, Chuncheon 24253, Korea.
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Chuncheon Sacred Heart Hospital, Hallym University Medical Center, Chuncheon 24235, Korea.
- Lung Research Institute of Hallym University College of Medicine, Chuncheon 24253, Korea.
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33
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Hotta Y, Uchiyama K, Takagi T, Kashiwagi S, Nakano T, Mukai R, Toyokawa Y, Yasuda T, Ueda T, Suyama Y, Murakami T, Tanaka M, Majima A, Doi T, Hirai Y, Mizushima K, Morita M, Higashimura Y, Inoue K, Fukui A, Okayama T, Katada K, Kamada K, Handa O, Ishikawa T, Naito Y, Itoh Y. Transforming growth factor β1-induced collagen production in myofibroblasts is mediated by reactive oxygen species derived from NADPH oxidase 4. Biochem Biophys Res Commun 2018; 506:557-562. [PMID: 30361098 DOI: 10.1016/j.bbrc.2018.10.116] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Accepted: 10/19/2018] [Indexed: 10/28/2022]
Abstract
Intestinal fibrosis with stricture formation is a severe complication of Crohn's disease (CD). Though new therapeutic targets to enable the prevention or treatment of intestinal fibrosis are needed, markers of this condition and the basic mechanisms responsible have not been established. NADPH oxidase (NOX) 4 has already been reported to play a key role in models of fibrogenesis, including that of the lung. However, its importance in intestinal fibrogenesis remains unclear. In this study, we examined the role of NOX4 in collagen production by intestinal myofibroblasts stimulated with transforming growth factor (TGF)-β1. Using LmcMF cells, an intestinal subepithelial myofibroblast (ISEMF) line, we first examined the induction of collagen production by TGF-β1. Subsequently, we investigated the role of NOX4 in TGF-β1-induced collagen I production in these cells using SB525334 (an SMAD2/3 inhibitor), diphenyleneiodonium (an NOX inhibitor), and Nox4 small interfering RNA (siRNA). Production of collagen was assessed with Sirius red staining, and Nox4 expression was measured by quantitative real-time PCR. Reactive oxygen species (ROS) production was determined using DCFDA and fluorescent microscopy. We observed that TGF-β1 induced collagen production via NOX4 activation and ROS generation in LmcMF cells. Nox4 siRNA and inhibitors of TGF-β1 receptor and NOX significantly reduced TGF-β1-induced ROS and collagen production. Thus, in the present study, we revealed that collagen production in ISEMFs is induced via an NOX4-dependent pathway. This work supports a function for NOX4 in intestinal fibrogenesis and identifies it as a potential therapeutic target in recalcitrant fibrotic disorders of CD patients.
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Affiliation(s)
- Yuma Hotta
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuhiko Uchiyama
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| | - Tomohisa Takagi
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Saori Kashiwagi
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takahiro Nakano
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Rieko Mukai
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuki Toyokawa
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomoyo Yasuda
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomohiro Ueda
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yosuke Suyama
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takaaki Murakami
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Makoto Tanaka
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Atsushi Majima
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshifumi Doi
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yasuko Hirai
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Katsura Mizushima
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Mayuko Morita
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yasuki Higashimura
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Ken Inoue
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Akifumi Fukui
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tetsuya Okayama
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuhiro Katada
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuhiro Kamada
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Osamu Handa
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takeshi Ishikawa
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuji Naito
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yoshito Itoh
- Molecular Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
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