1
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Li TT, Bai HY, Zhang JH, Kang XH, Qu YQ. Identification and Validation of Aging Related Genes Signature in Chronic Obstructive Pulmonary Disease. COPD 2024; 21:2379811. [PMID: 39138958 DOI: 10.1080/15412555.2024.2379811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 07/08/2024] [Accepted: 07/09/2024] [Indexed: 08/15/2024]
Abstract
PURPOSE Chronic Obstructive Pulmonary Disease (COPD) is regarded as an accelerated aging disease. Aging-related genes in COPD are still poorly understood. METHOD Data set GSE76925 was obtained from the Gene Expression Omnibus (GEO) database. The "limma" package identified the differentially expressed genes. The weighted gene co-expression network analysis (WGCNA) constructes co-expression modules and detect COPD-related modules. The least absolute shrinkage and selection operator (LASSO) and the support vector machine recursive feature elimination (SVM-RFE) algorithms were chosen to identify the hub genes and the diagnostic ability. Three external datasets were used to identify differences in the expression of hub genes. Real-time reverse transcription polymerase chain reaction (RT-qPCR) was used to verify the expression of hub genes. RESULT We identified 15 differentially expressed genes associated with aging (ARDEGs). The SVM-RFE and LASSO algorithms pinpointed four potential diagnostic biomarkers. Analysis of external datasets confirmed significant differences in PIK3R1 expression. RT-qPCR results indicated decreased expression of hub genes. The ROC curve demonstrated that PIK3R1 exhibited strong diagnostic capability for COPD. CONCLUSION We identified 15 differentially expressed genes associated with aging. Among them, PIK3R1 showed differences in external data sets and RT-qPCR results. Therefore, PIK3R1 may play an essential role in regulating aging involved in COPD.
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Affiliation(s)
- Tian-Tian Li
- Department of Pulmonary and Critical Care Medicine, Shandong Key Laboratory of Infectious Respiratory Diseases, Qilu Hospital of Shandong University, Jinan, China
| | - Hong-Yan Bai
- Department of Pulmonary and Critical Care Medicine, Shandong Key Laboratory of Infectious Respiratory Diseases, Qilu Hospital of Shandong University, Jinan, China
| | - Jing-Hong Zhang
- Department of Pulmonary and Critical Care Medicine, Shandong Key Laboratory of Infectious Respiratory Diseases, Qilu Hospital of Shandong University, Jinan, China
| | - Xiu-He Kang
- Department of Pulmonary and Critical Care Medicine, Shandong Key Laboratory of Infectious Respiratory Diseases, Qilu Hospital of Shandong University, Jinan, China
| | - Yi-Qing Qu
- Department of Pulmonary and Critical Care Medicine, Shandong Key Laboratory of Infectious Respiratory Diseases, Qilu Hospital of Shandong University, Jinan, China
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2
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Hu Y, Fan Q, Qiao B, Xu O, Lv B, Han N, Zhang X. Alleviatory Role of Panax Notoginseng Saponins in Modulating Inflammation and Pulmonary Vascular Remodeling in Chronic Obstructive Pulmonary Disease: mechanisms and Implications. COPD 2024; 21:2329282. [PMID: 38622983 DOI: 10.1080/15412555.2024.2329282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 03/06/2024] [Indexed: 04/17/2024]
Abstract
COPD is an inflammatory lung disease that limits airflow and remodels the pulmonary vascular system. This study delves into the therapeutic potential and mechanistic underpinnings of Panax notoginseng Saponins (PNS) in alleviating inflammation and pulmonary vascular remodeling in a COPD rat model. Symmap and ETCM databases provided Panax notoginseng-related target genes, and the CTD and DisGeNET databases provided COPD-related genes. Intersection genes were subjected to protein-protein interaction analysis and pathway enrichment to identify downstream pathways. A COPD rat model was established, with groups receiving varying doses of PNS and a Roxithromycin control. The pathological changes in lung tissue and vasculature were examined using histological staining, while molecular alterations were explored through ELISA, RT-PCR, and Western blot. Network pharmacology research suggested PNS may affect the TLR4/NF-κB pathway linked to COPD development. The study revealed that, in contrast to the control group, the COPD model exhibited a significant increase in inflammatory markers and pathway components such as TLR4, NF-κB, HIF-1α, VEGF, ICAM-1, SELE mRNA, and serum TNF-α, IL-8, and IL-1β. Treatment with PNS notably decreased these markers and mitigated inflammation around the bronchi and vessels. Taken together, the study underscores the potential of PNS in reducing lung inflammation and vascular remodeling in COPD rats, primarily via modulation of the TLR4/NF-κB/HIF-1α/VEGF pathway. This research offers valuable insights for developing new therapeutic strategies for managing and preventing COPD.
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Affiliation(s)
- Yanan Hu
- School of Basic Medical Science, Yunnan University of Chinese Medicine, Kunming, P. R. China
- Heze Hospital of Traditional Chinese Medicine, Heze, P. R. China
| | - Qiuyang Fan
- School of Basic Medical Science, Yunnan University of Chinese Medicine, Kunming, P. R. China
| | - Bo Qiao
- College of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, P. R. China
| | - Ou Xu
- Fuwai Yunnan Cardiovascular Hospital, Kunming, P. R. China
| | - Bijun Lv
- School of Basic Medical Science, Yunnan University of Chinese Medicine, Kunming, P. R. China
| | - Niping Han
- Molecular Biology for Sinomedicine, Yunnan Provincial Key Laboratory of Molecular Biology for Sinomedicine, Kunming, P. R. China
| | - Xiaomei Zhang
- Molecular Biology for Sinomedicine, Yunnan Provincial Key Laboratory of Molecular Biology for Sinomedicine, Kunming, P. R. China
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3
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Fu Y, Zhao J, Chen J, Zheng Y, Mo R, Zhang L, Zhang B, Lin Q, He C, Li S, Lin L, Xie T, Ding Y. miR‑186‑5p regulates the inflammatory response of chronic obstructive pulmonary disorder by targeting HIF‑1α. Mol Med Rep 2024; 29:34. [PMID: 38214374 PMCID: PMC10804437 DOI: 10.3892/mmr.2024.13158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 09/14/2023] [Indexed: 01/13/2024] Open
Abstract
Chronic obstructive pulmonary disorder (COPD) is a chronic respiratory disease that is a major cause of morbidity and mortality worldwide. Previous studies have shown that miR‑186‑5p expression is significantly increased in COPD and is involved in multiple physiological and pathological processes. However, the role of miRNA‑186‑5p in the inflammatory response of COPD remains unclear. In this study, an in vitro model of COPD was established using lipopolysaccharide (LPS)‑induced human bronchial epithelial cells (BEAS‑2B). CCK‑8 assays, flow cytometry, and a Muse cell analyzer were used to determine cell viability, cell cycle distribution, and apoptosis, respectively. The production of TNF‑α and IL‑6 were measured by ELISA. Reverse‑transcription‑quantitative PCR and western blotting were used to analyze mRNA and protein expression levels. The targeting relation between miR‑186‑5p and HIF‑1α was discovered using dual‑luciferase reporter assays. The results showed that transfection of miR‑186‑5p inhibitor inhibited cell proliferation and promoted cell apoptosis in the LPS‑induced BEAS‑2B cells. Inhibition of miR‑186‑5p markedly increased the levels of TNF‑α and IL‑6. miR‑186‑5p directly targeted and negatively regulated HIF‑1α expression. In addition, inhibition of miR‑186‑5p increased the expression of the NF‑κB pathway protein p‑p65. In conclusion, it was found that inhibiting miR‑186‑5p may improve inflammation of COPD through HIF‑1α in LPS‑induced BEAS‑2B cells, possibly by regulating NF‑κB signaling. These findings provide a novel potential avenue for the clinical management of COPD. Future research is required to determine the mechanism of the interaction between miR‑186‑5p and HIF‑1α in COPD.
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Affiliation(s)
- Yihui Fu
- Department of Pulmonary and Critical Care Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570311, P.R. China
| | - Jie Zhao
- Department of Pulmonary and Critical Care Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570311, P.R. China
| | - Jie Chen
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570311, P.R. China
| | - Yamei Zheng
- Department of Pulmonary and Critical Care Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570311, P.R. China
| | - Rubing Mo
- Department of Pulmonary and Critical Care Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570311, P.R. China
| | - Lei Zhang
- Department of Pulmonary and Critical Care Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570311, P.R. China
| | - Bingli Zhang
- Department of Pulmonary and Critical Care Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570311, P.R. China
| | - Qi Lin
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570311, P.R. China
| | - Chanyi He
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570311, P.R. China
| | - Siguang Li
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570311, P.R. China
| | - Lingsang Lin
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570311, P.R. China
| | - Tian Xie
- Department of Pulmonary and Critical Care Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570311, P.R. China
| | - Yipeng Ding
- Department of Pulmonary and Critical Care Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570311, P.R. China
- Department of General Practice, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570311, P.R. China
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Xu YR, Wang AL, Li YQ. Hypoxia-inducible factor 1-alpha is a driving mechanism linking chronic obstructive pulmonary disease to lung cancer. Front Oncol 2022; 12:984525. [PMID: 36338690 PMCID: PMC9634253 DOI: 10.3389/fonc.2022.984525] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 10/10/2022] [Indexed: 11/27/2022] Open
Abstract
Patients with chronic obstructive pulmonary disease (COPD), irrespective of their smoking history, are more likely to develop lung cancer than the general population. This is mainly because COPD is characterized by chronic persistent inflammation and hypoxia, which are the risk factors for lung cancer. However, the mechanisms underlying this observation are still unknown. Hypoxia-inducible factor 1-alpha (HIF-1α) plays an important role in the crosstalk that exists between inflammation and hypoxia. Furthermore, HIF-1α is the main regulator of somatic adaptation to hypoxia and is highly expressed in hypoxic environments. In this review, we discuss the molecular aspects of the crosstalk between hypoxia and inflammation, showing that HIF-1α is an important signaling pathway that drives COPD progression to lung cancer. Here, we also provide an overview of HIF-1α and its principal regulatory mechanisms, briefly describe HIF-1α-targeted therapy in lung cancer, and summarize substances that may be used to target HIF-1α at the level of COPD-induced inflammation.
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Affiliation(s)
- Yuan-rui Xu
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
- Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang, China
| | - An-long Wang
- Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang, China
| | - Ya-qing Li
- Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang, China
- *Correspondence: Ya-qing Li,
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Karnati S, Seimetz M, Kleefeldt F, Sonawane A, Madhusudhan T, Bachhuka A, Kosanovic D, Weissmann N, Krüger K, Ergün S. Chronic Obstructive Pulmonary Disease and the Cardiovascular System: Vascular Repair and Regeneration as a Therapeutic Target. Front Cardiovasc Med 2021; 8:649512. [PMID: 33912600 PMCID: PMC8072123 DOI: 10.3389/fcvm.2021.649512] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/08/2021] [Indexed: 12/12/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a major cause of morbidity and mortality worldwide and encompasses chronic bronchitis and emphysema. It has been shown that vascular wall remodeling and pulmonary hypertension (PH) can occur not only in patients with COPD but also in smokers with normal lung function, suggesting a causal role for vascular alterations in the development of emphysema. Mechanistically, abnormalities in the vasculature, such as inflammation, endothelial dysfunction, imbalances in cellular apoptosis/proliferation, and increased oxidative/nitrosative stress promote development of PH, cor pulmonale, and most probably pulmonary emphysema. Hypoxemia in the pulmonary chamber modulates the activation of key transcription factors and signaling cascades, which propagates inflammation and infiltration of neutrophils, resulting in vascular remodeling. Endothelial progenitor cells have angiogenesis capabilities, resulting in transdifferentiation of the smooth muscle cells via aberrant activation of several cytokines, growth factors, and chemokines. The vascular endothelium influences the balance between vaso-constriction and -dilation in the heart. Targeting key players affecting the vasculature might help in the development of new treatment strategies for both PH and COPD. The present review aims to summarize current knowledge about vascular alterations and production of reactive oxygen species in COPD. The present review emphasizes on the importance of the vasculature for the usually parenchyma-focused view of the pathobiology of COPD.
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Affiliation(s)
- Srikanth Karnati
- Institute of Anatomy and Cell Biology, Julius-Maximilians-University Würzburg, Würzburg, Germany
| | - Michael Seimetz
- Excellence Cluster Cardio-Pulmonary System (ECCPS), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany
| | - Florian Kleefeldt
- Institute of Anatomy and Cell Biology, Julius-Maximilians-University Würzburg, Würzburg, Germany
| | - Avinash Sonawane
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Indore, India
| | - Thati Madhusudhan
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
| | - Akash Bachhuka
- UniSA Science, Technology, Engineering and Mathematics, University of South Australia, Mawson Lakes Campus, Adelaide, SA, Australia
| | - Djuro Kosanovic
- Excellence Cluster Cardio-Pulmonary System (ECCPS), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany.,Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Norbert Weissmann
- Excellence Cluster Cardio-Pulmonary System (ECCPS), Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany
| | - Karsten Krüger
- Department of Exercise Physiology and Sports Therapy, University of Giessen, Giessen, Germany
| | - Süleyman Ergün
- Institute of Anatomy and Cell Biology, Julius-Maximilians-University Würzburg, Würzburg, Germany
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6
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Li X, Berg NK, Mills T, Zhang K, Eltzschig HK, Yuan X. Adenosine at the Interphase of Hypoxia and Inflammation in Lung Injury. Front Immunol 2021; 11:604944. [PMID: 33519814 PMCID: PMC7840604 DOI: 10.3389/fimmu.2020.604944] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/25/2020] [Indexed: 12/19/2022] Open
Abstract
Hypoxia and inflammation often coincide in pathogenic conditions such as acute respiratory distress syndrome (ARDS) and chronic lung diseases, which are significant contributors to morbidity and mortality for the general population. For example, the recent global outbreak of Coronavirus disease 2019 (COVID-19) has placed viral infection-induced ARDS under the spotlight. Moreover, chronic lung disease ranks the third leading cause of death in the United States. Hypoxia signaling plays a diverse role in both acute and chronic lung inflammation, which could partially be explained by the divergent function of downstream target pathways such as adenosine signaling. Particularly, hypoxia signaling activates adenosine signaling to inhibit the inflammatory response in ARDS, while in chronic lung diseases, it promotes inflammation and tissue injury. In this review, we discuss the role of adenosine at the interphase of hypoxia and inflammation in ARDS and chronic lung diseases, as well as the current strategy for therapeutic targeting of the adenosine signaling pathway.
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Affiliation(s)
- Xiangyun Li
- Department of Anesthesiology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States
- Department of Anesthesiology, Tianjin Medical University NanKai Hospital, Tianjin, China
| | - Nathanial K. Berg
- Department of Anesthesiology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Tingting Mills
- Department of Biochemistry, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Kaiying Zhang
- Department of Anesthesiology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Holger K. Eltzschig
- Department of Anesthesiology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Xiaoyi Yuan
- Department of Anesthesiology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States
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7
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Kheiry M, Dianat M, Badavi M, Mard SA, Bayati V. p-Coumaric Acid Attenuates Lipopolysaccharide-Induced Lung Inflammation in Rats by Scavenging ROS Production: an In Vivo and In Vitro Study. Inflammation 2020; 42:1939-1950. [PMID: 31267276 DOI: 10.1007/s10753-019-01054-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Lipopolysaccharide (LPS), known as lipoglycans and endotoxins found in the cell wall of some type of Gram-negative bacteria, causes acute lung inflammation (ALI). p-Coumaric acid (p-CA) possesses anti-inflammatory and anti-oxidative activities. The main purpose of our research was to explore the effect of p-CA on LPS-induced inflammation. In part I, 32 rats were divided into four groups: Control, LPS (5 mg/kg), p-CA (100 mg/kg), and LPS + p-CA to investigate acute lung inflammation caused by LPS. In part II, the effect of LPS-stimulated inflammatory response on A549 cells was investigated. The dosage of LPS and p-CA which used in this part was 1 μg/ml and 20 mM, respectively. ALI rats showed an elevation in antioxidant activity, TNF-alpha, IL-6, MDA, inflammatory parameters, and Nrf2 gene expression. Although pre-treatment with p-CA could return these changes approximately to normal condition in all two-part studies (in vivo and in vitro). The results of in vivo and in vitro study showed that LPS induced lung inflammation. Pre-treatment with p-CA causes modulating of oxidative stress in inflammatory condition in lung injury and A549 cell.
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Affiliation(s)
- Maryam Kheiry
- Department of Physiology, Physiology Research Center, Faculty of Medicine, Persian Gulf Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences, Golestan Boulevard, Ahvaz, Iran
| | - Mahin Dianat
- Department of Physiology, Physiology Research Center, Faculty of Medicine, Persian Gulf Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences, Golestan Boulevard, Ahvaz, Iran.
| | - Mohammad Badavi
- Department of Physiology, Physiology Research Center, Faculty of Medicine, Persian Gulf Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences, Golestan Boulevard, Ahvaz, Iran
| | - Seyyed Ali Mard
- Department of Physiology, Physiology Research Center, Faculty of Medicine, Persian Gulf Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences, Golestan Boulevard, Ahvaz, Iran
| | - Vahid Bayati
- Cellular and Molecular Research Center, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Huang H, Feng H, Zhuge D. M1 Macrophage Activated by Notch Signal Pathway Contributed to Ventilator-Induced Lung Injury in Chronic Obstructive Pulmonary Disease Model. J Surg Res 2019; 244:358-367. [PMID: 31323391 DOI: 10.1016/j.jss.2019.06.060] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 05/10/2019] [Accepted: 06/14/2019] [Indexed: 01/22/2023]
Abstract
BACKGROUND Ventilator-induced lung injury (VILI) in chronic obstructive pulmonary disease (COPD) is still a problem. We intended to explore the role of macrophage polarity in VILI and the underlying mechanism. MATERIALS AND METHODS COPD model was created by cigarette smoke and ventilated. Macrophages were isolated, and the wet/dry (W/D) ratio was determined after modeling, and proteins in bronchoalveolar lavage fluid (BALF) were assessed by bicinchoninic acid assay. Histopathology was observed by Hematoxylin-Eosin staining. Tumor necrosis factor (TNF)-α and interleukin (IL)-6 levels were measured by enzyme-linked immunosorbent assay. Macrophage polarity was assessed by flow cytometry. Protein levels were measured by Western blot and mRNA by quantitative real-time polymerase chain reaction. RESULTS Pathology statement was worsened, and the W/D ratio, protein level in BALF, TNF-α level, and IL-6 levels were elevated in cigarette smoke-induced COPD model. Notch-1 intracellular domain, hairy and enhancer of split (Hes) 1, Hes5, hairy/enhancer-of-split related with YRPW motif protein 1, CD86, TNF-α, and inducible nitric oxide synthases expressions were raised, whereas CD206, IL-4, and IL-10 expressions were decreased in macrophages after ventilation, shifting macrophage polarity to M1 phenotype. After the inhibition of Notch signaling, pathology statement was improved, and the W/D ratio, protein level in BALF, TNF-α, IL-6, Notch-1 intracellular domain, Hes1, Hes5, hairy/enhancer-of-split related with YRPW motif protein 1, CD86, TNF-α, and inducible nitric oxide synthases expressions were decreased while CD206, IL-4, and IL-10 expressions were elevated after ventilation, shifting macrophage polarity to M2 phenotype partially. CONCLUSIONS Mechanical ventilation in cigarette-induced COPD could activate the Notch signal pathway and further shift the polarity of macrophage toward M1 phenotype, leading to VILI in cigarette-induced COPD.
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Affiliation(s)
- Hongping Huang
- Department of Eastern Respiratory Medicine, Linyi People's Hospital, Linyi, China
| | - Hui Feng
- Linyi People's Hospital Office, Linyi People's Hospital, Linyi, China.
| | - Dong Zhuge
- Department of Eastern General Internal Medicine, Linyi People's Hospital, Linyi, China
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9
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Shukla SD, Walters EH, Simpson JL, Keely S, Wark PA, O'Toole RF, Hansbro PM. Hypoxia‐inducible factor and bacterial infections in chronic obstructive pulmonary disease. Respirology 2019; 25:53-63. [DOI: 10.1111/resp.13722] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 09/25/2019] [Accepted: 10/08/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Shakti D. Shukla
- School of Biomedical Sciences and Pharmacy, Faculty of Health and MedicineUniversity of Newcastle Newcastle NSW Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research InstituteUniversity of Newcastle Newcastle NSW Australia
| | - E. Haydn Walters
- School of Medicine, College of Health and MedicineUniversity of Tasmania Hobart TAS Australia
| | - Jodie L. Simpson
- Priority Research Centre for Healthy Lungs, Hunter Medical Research InstituteUniversity of Newcastle Newcastle NSW Australia
- Respiratory and Sleep Medicine, Priority Research Centre for Healthy LungsUniversity of Newcastle Newcastle NSW Australia
| | - Simon Keely
- School of Biomedical Sciences and Pharmacy, Faculty of Health and MedicineUniversity of Newcastle Newcastle NSW Australia
- Priority Research Centre for Digestive Health and Neurogastroenterology, Hunter Medical Research InstituteUniversity of Newcastle Newcastle NSW Australia
| | - Peter A.B. Wark
- Priority Research Centre for Healthy Lungs, Hunter Medical Research InstituteUniversity of Newcastle Newcastle NSW Australia
- Respiratory and Sleep Medicine, Priority Research Centre for Healthy LungsUniversity of Newcastle Newcastle NSW Australia
| | - Ronan F. O'Toole
- School of Molecular Sciences, College of Science, Health and EngineeringLa Trobe University Melbourne VIC Australia
| | - Philip M. Hansbro
- School of Biomedical Sciences and Pharmacy, Faculty of Health and MedicineUniversity of Newcastle Newcastle NSW Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research InstituteUniversity of Newcastle Newcastle NSW Australia
- Centenary Institute and School of Life Sciences, Faculty of Science, University of Technology Sydney Sydney NSW Australia
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10
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Radan M, Dianat M, Badavi M, Mard SA, Bayati V, Goudarzi G. In vivo and in vitro evidence for the involvement of Nrf2-antioxidant response element signaling pathway in the inflammation and oxidative stress induced by particulate matter (PM10): the effective role of gallic acid. Free Radic Res 2019; 53:210-225. [PMID: 30585515 DOI: 10.1080/10715762.2018.1563689] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Environmental pollution is one of the risk factors for respiratory diseases. The nuclear factor erythroid 2-related factor 2 (Nrf2) is the major mechanisms contributing to cellular defense against oxidative damage. Gallic acid (GA) is regarded as potent anti-inflammatory and antioxidant agents. The aim was to evaluate the role of Nrf2 pathway in particulate matter (PM10) exposure on lung and epithelial cells with an emphasis on the role of GA. In in vivo part, the rats were divided as control, GA (30 mg/kg), particulate matter (PM) (0.5, 2.5, and 5 mg/kg), and PM + GA. In in vitro study, the cells were divided as control, PM10 (100, 250, and 500 µg/ml), GA (50 µmol/L) and PM10+GA. Inflammation, oxidative stress and Nrf2-pathway factors were assessed. PM10 groups showed a considerable increase in the epithelial permeability and inflammatory parameters. We also found a significant decrease in the expression of Nrf2 and its up-stream regulators genes. Accordingly, the biosynthesis of glutathione (GSH) and other antioxidant activities significantly decreased. Gallic acid was identified to restore the antioxidant status to the normal levels. Our findings approved that Nrf2 is involved in PM10-induced oxidative damages and showed that Nrf2 activation by natural agents could ameliorate respiratory injuries induced by PM10.
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Affiliation(s)
- Maryam Radan
- a Faculty of Medicine, Department of Physiology , Persian Gulf Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Mahin Dianat
- a Faculty of Medicine, Department of Physiology , Persian Gulf Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Mohammad Badavi
- a Faculty of Medicine, Department of Physiology , Persian Gulf Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Seyyed Ali Mard
- a Faculty of Medicine, Department of Physiology , Persian Gulf Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Vahid Bayati
- b Faculty of Medicine , Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Gholamreza Goudarzi
- c Health Faculty, Department of Environmental Health Engineering , Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
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11
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Rong B, Liu Y, Li M, Fu T, Gao W, Liu H. Correlation of serum levels of HIF-1α and IL-19 with the disease progression of COPD: a retrospective study. Int J Chron Obstruct Pulmon Dis 2018; 13:3791-3803. [PMID: 30538441 PMCID: PMC6254505 DOI: 10.2147/copd.s177034] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background The aim of this study was to disclose the correlation between the serum levels of hypoxia-inducible factor 1 alpha (HIF-1α) and IL-19 and stable COPD. Methods The serum levels of HIF-1α and IL-19 were tested by ELISA. The relationships between their levels and clinical parameters of stable COPD patients were analyzed by linear regression methods. Results Patients with stable COPD showed higher serum levels of HIF-1α and IL-19 compared with healthy control group (P<0.001), and serum levels of HIF-1α and IL-19 had a positive linear correlation (P<0.05). In stable COPD patients, increased serum levels of HIF-1α and IL-19 were positively correlated with the GOLD grading (P<0.005), modified British Medical Research Council (mMRC) score (P<0.05), and medical history (P<0.05) but negatively related to the pulmonary function (P<0.05). The serum level of HIF-1α (P<0.05) was affected by the patient’s FEV1/FVC value and COPD grading, and the serum level of IL-19 was associated with the mMRC scores and the serum level of HIF-1α (P<0.05). Conclusion Increased serum levels of HIF-1α and IL-19 correlated with the disease progression of COPD, suggesting that they can be used as indicators to help us understand the COPD.
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Affiliation(s)
- Biaoxue Rong
- Department of Respiratory Medicine, First Affiliated Hospital, Xi'an Medical University, Xi'an, China,
| | - Yufang Liu
- Comprehensive Medicine Department, Shenmu Hospital, Shenmu, China
| | - Min Li
- Department of Respiratory Medicine, Shenmu Hospital, Shenmu, China
| | - Tian Fu
- Department of Respiratory Medicine, Jining No 1 People's Hospital, Jining, China
| | - Wenlong Gao
- Institute of Epidemiology and Health Statistics, School of Public Health, Lanzhou University, Lanzhou, China
| | - Hua Liu
- Department of Respiratory Medicine, Gansu Provincial Hospital, Lanzhou, China
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12
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Fu X, Zhang F. Role of the HIF-1 signaling pathway in chronic obstructive pulmonary disease. Exp Ther Med 2018; 16:4553-4561. [PMID: 30542404 PMCID: PMC6257248 DOI: 10.3892/etm.2018.6785] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 05/25/2018] [Indexed: 12/18/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is the most common cause of chronic morbidity and mortality. However, the molecular mechanisms underlying COPD remain largely unknown. The purpose of the present study was to investigate the expression patterns of hypoxia-inducible factor 1α (HIF-1α), vascular endothelial growth factor (VEGF), and VEGF receptor 2 (R2) in regard to the HIF-1 signaling pathway in COPD. The expressions of HIF-1α, VEGF and VEGFR2 were examined and quantified in the human lung tissues of 102 subjects with a defined smoking status, with or without COPD. The expressions of HIF-1α, VEGF and VEGFR2 were observed to be increased in the lung tissues collected from smoking COPD subjects when compared with those tissues from smoking subjects without COPD and non-smoking subjects without COPD. The expression of HIF-1α was shown to be positively associated with the expression of VEGF and VEGFR2. In addition, increased expression of HIF-1α, VEGF and VEGFR2 reflected the disease severity of COPD. The key findings obtained from the present study indicated that high expression of HIF-1α, VEGF and VEGFR2 may be associated with decreased lung function and reduced quality of life, contributing to disease progression in COPD.
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Affiliation(s)
- Xiang Fu
- Department of Respiratory Medicine, The No. 5 Hospital of Xiamen, Xiamen, Fujian 361100, P.R. China
| | - Fengling Zhang
- Department of Respiratory Medicine, The No. 5 Hospital of Xiamen, Xiamen, Fujian 361100, P.R. China
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13
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Guan R, Wang J, Li Z, Ding M, Li D, Xu G, Wang T, Chen Y, Yang Q, Long Z, Cai Z, Zhang C, Liang X, Dong L, Zhao L, Zhang H, Sun D, Lu W. Sodium Tanshinone IIA Sulfonate Decreases Cigarette Smoke-Induced Inflammation and Oxidative Stress via Blocking the Activation of MAPK/HIF-1α Signaling Pathway. Front Pharmacol 2018; 9:263. [PMID: 29765317 PMCID: PMC5938387 DOI: 10.3389/fphar.2018.00263] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 03/09/2018] [Indexed: 12/27/2022] Open
Abstract
Aberrant activation of hypoxia-inducible factor (HIF)-1α is frequently encountered and promotes oxidative stress and inflammation in chronic obstructive pulmonary disease (COPD). The present study investigated whether sodium tanshinone IIA sulfonate (STS), a water-soluble derivative of tanshinone IIA, can mediate its effect through inhibiting HIF-1α–induced oxidative stress and inflammation in cigarette smoke (CS)-induced COPD in mice. Here, we found that STS improved pulmonary function, ameliorated emphysema and decreased the infiltration of inflammatory cells in the lungs of CS-exposed mice. STS reduced CS- and cigarette smoke extract (CSE)-induced upregulation of tumor necrosis factor (TNF)-α and interleukin (IL)-1β in the lungs and macrophages. STS also inhibited CSE-induced reactive oxygen species (ROS) production, as well as the upregulation of heme oxygenase (HO)-1, NOX1 and matrix metalloproteinase (MMP)-9 in macrophages. In addition, STS suppressed HIF-1α expression in vivo and in vitro, and pretreatment with HIF-1α siRNA reduced CSE-induced elevation of TNF-α, IL-1β, and HO-1 content in the macrophages. Moreover, we found that STS inhibited CSE-induced the phosphorylation of ERK, p38 MAPK and JNK in macrophages, and inhibition of these signaling molecules significantly repressed CSE-induced HIF-1α expression. It indicated that STS inhibits CSE-induced HIF-1α expression likely by blocking MAPK signaling. Furthermore, STS also promoted HIF-1α protein degradation in CSE-stimulated macrophages. Taken together, these results suggest that STS prevents COPD development possibly through the inhibition of HIF-1α signaling, and may be a novel strategy for the treatment of COPD.
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Affiliation(s)
- Ruijuan Guan
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jian Wang
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Ziying Li
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Mingjing Ding
- Departments of Respiratory and Critical Diseases, Inner Mongolia Autonomous Region People's Hospital, Hohhot, China
| | - Defu Li
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Guihua Xu
- Department of Clinical Medical Research Center, Inner Mongolia Autonomous Region People's Hospital, Hohhot, China
| | - Tao Wang
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yuqin Chen
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Qian Yang
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Zhen Long
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Zhou Cai
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Chenting Zhang
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Xue Liang
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Lian Dong
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Li Zhao
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Haiyun Zhang
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Dejun Sun
- Departments of Respiratory and Critical Diseases, Inner Mongolia Autonomous Region People's Hospital, Hohhot, China
| | - Wenju Lu
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
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14
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Dianat M, Radan M, Badavi M, Mard SA, Bayati V, Ahmadizadeh M. Crocin attenuates cigarette smoke-induced lung injury and cardiac dysfunction by anti-oxidative effects: the role of Nrf2 antioxidant system in preventing oxidative stress. Respir Res 2018; 19:58. [PMID: 29631592 PMCID: PMC5891913 DOI: 10.1186/s12931-018-0766-3] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 04/02/2018] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) has been emerging as a great health problem in world. Cigarette smoke is known to cause oxidative stress and deplete glutathione (GSH) levels. Nuclear erythroid-related factor 2 (Nrf2) is involved in transcriptional regulation of glutamate-cysteine ligase catalytic subunit (GCLc). Antioxidant compounds may be of therapeutic value in monitoring disease progression. Crocin demonstrates antioxidant and anti-inflammatory functions. The aim of this study was to investigate the protective role of crocin against CSE-mediated oxidative stress, inflammatory process, Nrf2 modifications and impairment of cardiac function in rats with COPD. METHODS Eighty rats were divided into four groups: Control, Cigarette smoke exposure (CSE), Crocin, Crocin+CS. Each group was divided into the two parts: 1) to evaluate lung inflammatory and oxidative process, 2) to evaluate the effect of Cigarette smoke induced-lung injuries on cardiac electrocardiogram (such as heart rate and QRS complex) and hemodynamic parameters (such as perfusion pressure and left ventricular developed pressure). RESULTS CSE rats showed a significant increase in cotinine concentration (17.24 ng/ml), and inflammatory parameters and a decrease in PO2 (75.87 mmHg) and expression of PKC (0.86 fold), PI3K (0.79 fold), MAPK (0.87 fold), Nrf2 (0.8 fold) and GCLc (0.75 fold) genes, antioxidant activity, and finally cardiac abnormalities in electrocardiogram and hemodynamic parameters. Co-treatment whit crocin could restore all these values to normal levels. CONCLUSIONS CS induced-COPD in rat model provides evidence that chronic CS exposure leads to lung injury and mediated cardiac dysfunction. Crocin co-treatment by modulating of Nrf2 pathway protected lung injury caused by COPD and its related cardiac dysfunction. In this study, we showed the importance of Nrf2 activators as a therapeutic target for the development of novel therapy for lung oxidative injuries.
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Affiliation(s)
- Mahin Dianat
- Department of Physiology, Physiology Research Center, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Maryam Radan
- Department of Physiology, Physiology Research Center, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Badavi
- Department of Physiology, Physiology Research Center, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Seyyed Ali Mard
- Department of Physiology, Physiology Research Center, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Vahid Bayati
- Cellular and Molecular Research Center, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Masoumeh Ahmadizadeh
- Physiology Research Center, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
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15
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Besiktepe N, Kayalar O, Ersen E, Oztay F. The copper dependent-lysyl oxidases contribute to the pathogenesis of pulmonary emphysema in chronic obstructive pulmonary disease patients. J Trace Elem Med Biol 2017; 44:247-255. [PMID: 28965583 DOI: 10.1016/j.jtemb.2017.08.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 08/15/2017] [Accepted: 08/17/2017] [Indexed: 02/05/2023]
Abstract
Abnormalities in the elastic fiber biology are seen in pulmonary emphysema (PE). The copper-dependent lysyl oxidases regulate the production and accumulation of elastic fibers in the connective tissue. This study focused on the relationship between lysyl oxidase (LOX), LOX-like protein 1 (LOXL1), and LOXL2 and PE pathogenesis. Lung samples with or without PE from patients with chronic obstructive lung disease (n=35) were used. Protein levels of elastin, LOX, LOXL1, LOXL2, hypoxia inducible factor 1-alpha (HIF-1α), copper metabolism domain containing-1 (COMMD1), and phosphatase and tensin homolog (PTEN) were assayed using microscopic and biochemical methods The emphysematous areas were characterized by enlargement of the alveoli, destruction of the alveolar structure, accumulation of macrophages in the alveolar lumens, and showed increased HIF-1α immunoreactivity. Additionally, the emphysematous areas had significantly lower elastin, LOX, LOXL1, LOXL2, HIF-1α, COMMD1, and PTEN protein levels than the non-emphysematous areas. We suppose that the reductions in the HIF-1α levels led to decreases in the protein levels of active LOX, LOXL1, and LOXL2. These decreases might cause abnormalities in the elastic fiber biology. HIF-1α activation induced by decreased COMMD1 and protease activation induced by decreased PTEN might contribute to the development of PE. Finally, methods aimed at increasing the protein levels of LOXs, COMMD1 and PTEN might be effective for treating PE.
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Affiliation(s)
- Neziha Besiktepe
- Department of Biology, Faculty of Science, Istanbul University, 34134 Vezneciler, Istanbul, Turkey.
| | - Ozgecan Kayalar
- Department of Biology, Faculty of Science, Istanbul University, 34134 Vezneciler, Istanbul, Turkey.
| | - Ezel Ersen
- Department of Thoracic Surgery, Cerrahpasa Medical Faculty, Istanbul University, 34098 Kocamustafapasa, Istanbul, Turkey.
| | - Fusun Oztay
- Department of Biology, Faculty of Science, Istanbul University, 34134 Vezneciler, Istanbul, Turkey.
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16
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Peng YH, Huang CW, Liao WC, Chen HJ, Yin MC, Huang YM, Wu TN, Ho WC. Association between chronic obstructive pulmonary disease and increased risk of benign prostatic hyperplasia: a retrospective nationwide cohort study. BMJ Open 2017; 7:e015581. [PMID: 28645971 PMCID: PMC5734354 DOI: 10.1136/bmjopen-2016-015581] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE Chronic obstructive pulmonary disease (COPD) and benign prostatic hyperplasia (BPH) are common disorders in ageing male populations. Nevertheless, the relationship between the two diseases has rarely been explored. The objective of this study was to examine whether patients with COPD are at an increased risk of BPH. DESIGN Retrospective nationwide cohort study. SETTING Data retrieved from the Taiwan National Health Insurance Research Database. PARTICIPANTS Overall, 19 959 male patients aged 40 years and over with newly diagnosed COPD between 2000 and 2006 were included as the COPD group, and 19 959 sex-matched and age-matched enrollees without COPD were included as the non-COPD group. Both groups were followed-up until the end of 2011. OUTCOME MEASURES A Cox proportional hazards regression model was used to compute the risk of BPH in patients with COPD compared with enrollees without COPD. RESULTS The overall incidence rate of BPH was 1.53 times higher in the COPD group than that in the non-COPD group (44.7 vs 25.7 per 1000 person-years, 95% CI 1.46 to 1.60) after adjusting for covariates. An additional stratified analysis revealed that this increased risk of BPH in patients with COPD remained significantly higher than that in enrollees without COPD in all men aged 40 years and over. CONCLUSION After adjustment for covariates, male patients with COPD were found to be at a higher risk of BPH. We suggest that clinicians should be cautious about the increased risk of BPH in male patients with COPD.
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Affiliation(s)
- Yi-Hao Peng
- Department of Public Health, China Medical University, Taichung, Taiwan
- Division of Respiratory Therapy, Asia University Hospital, Asia University, Taichung, Taiwan
- Department of Respiratory Therapy, China Medical University, Taichung, Taiwan
| | - Chien-Wen Huang
- Division of Chest Medicine, Department of Internal Medicine, Asia University Hospital, Taichung, Taiwan
- Department of Biotechnology, College of Medical and Health Science, Asia University, Taichung, Taiwan
- Institute of Molecular Biology, College of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Wei-Chih Liao
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, China Medical University Hospital, China Medical University, Taichung, Taiwan
- College of Medicine, China Medical University, Taichung, Taiwan
| | - Hsuan-Ju Chen
- College of Medicine, China Medical University, Taichung, Taiwan
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
| | - Ming-Chien Yin
- Department of Public Health, China Medical University, Taichung, Taiwan
- Department of Respiratory Therapy, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Yu-Ming Huang
- Division of Respiratory Therapy, Asia University Hospital, Asia University, Taichung, Taiwan
| | - Trong-Neng Wu
- Department of Health Care Administration, Asia University, Taichung, Taiwan
| | - Wen-Chao Ho
- Department of Public Health, China Medical University, Taichung, Taiwan
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17
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Jimenez FR, Lewis JB, Belgique ST, Milner DC, Lewis AL, Dunaway TM, Egbert KM, Winden DR, Arroyo JA, Reynolds PR. Cigarette smoke and decreased oxygen tension inhibit pulmonary claudin-6 expression. Exp Lung Res 2016; 42:440-452. [PMID: 27982694 DOI: 10.1080/01902148.2016.1261309] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE Chronic obstructive pulmonary disease is a condition involving perturbed barrier integrity coincident with both emphysema and inflammation of the airways, and smoking is considered a major risk factor. Claudins (Cldns) stabilize barriers and contribute to tight junctions by preventing paracellular transport of extracellular fluid constituents. METHODS To determine Cldn6 was differentially influenced by tobacco smoke, Cldn6 was evaluated in cells and tissues by q-PCR, immunoblotting, and immunohistochemistry following exposure. Cldn6 transcriptional regulation was also assessed using luciferase reporter constructs. RESULTS Q-PCR and immunoblotting revealed that Cldn6 was decreased in alveolar type II-like epithelial cells (A549) and primary small airway epithelial cells when exposed to cigarette smoke extract (CSE). Cldn6 was also markedly decreased in the lungs of mice exposed to acute tobacco smoke delivered by a nose-only automated smoke machine compared to controls. Luciferase reporter assays incorporating 0.5-kb, 1.0-kb, or 2.0-kb of the Cldn6 promoter revealed decreased transcription of Cldn6 following exposure to CSE. Cldn6 transcriptional regulation was also assessed in hypoxic conditions due to low oxygen tension observed during smoking. Hypoxia and hypoxia inducible factor-1 alpha caused decreased transcription of the Cldn6 gene via interactions with putative response elements in the proximal promoter sequence. CONCLUSIONS These data reveal that tight junctional proteins such as Cldn6 are differentially regulated by tobacco-smoke exposure and that Cldns are potentially targeted when epithelial cells respond to tobacco smoke. Further research may show that Cldns expressed in tight junctions between parenchymal cells contribute to impaired structural integrity of the lung coincident with smoking.
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Affiliation(s)
- Felix R Jimenez
- a Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology , Brigham Young University , Provo , Utah , USA
| | - Josh B Lewis
- a Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology , Brigham Young University , Provo , Utah , USA
| | - Samuel T Belgique
- a Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology , Brigham Young University , Provo , Utah , USA
| | - Dallin C Milner
- a Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology , Brigham Young University , Provo , Utah , USA
| | - Adam L Lewis
- a Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology , Brigham Young University , Provo , Utah , USA
| | - Todd M Dunaway
- a Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology , Brigham Young University , Provo , Utah , USA
| | - Kaleb M Egbert
- a Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology , Brigham Young University , Provo , Utah , USA
| | - Duane R Winden
- b College of Dental Medicine, Roseman University of Health Sciences-South Jordan Campus , South Jordan , Utah , USA
| | - Juan A Arroyo
- a Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology , Brigham Young University , Provo , Utah , USA
| | - Paul R Reynolds
- a Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology , Brigham Young University , Provo , Utah , USA
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18
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Roche O, Deguiz ML, Tiana M, Galiana-Ribote C, Martinez-Alcazar D, Rey-Serra C, Ranz-Ribeiro B, Casitas R, Galera R, Fernández-Navarro I, Sánchez-Cuéllar S, Bernard V, Ancochea J, Wasserman WW, García-Rio F, Jimenez B, Del Peso L. Identification of non-coding genetic variants in samples from hypoxemic respiratory disease patients that affect the transcriptional response to hypoxia. Nucleic Acids Res 2016; 44:9315-9330. [PMID: 27625398 PMCID: PMC5100585 DOI: 10.1093/nar/gkw811] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 09/02/2016] [Indexed: 12/11/2022] Open
Abstract
A wide range of diseases course with an unbalance between the consumption of oxygen by tissues and its supply. This situation triggers a transcriptional response, mediated by the hypoxia inducible factors (HIFs), that aims to restore oxygen homeostasis. Little is known about the inter-individual variation in this response and its role in the progression of disease. Herein, we sought to identify common genetic variants mapping to hypoxia response elements (HREs) and characterize their effect on transcription. To this end, we constructed a list of genome-wide HIF-binding regions from publicly available experimental datasets and studied the genetic variability in these regions by targeted re-sequencing of genomic samples from 96 chronic obstructive pulmonary disease and 144 obstructive sleep apnea patients. This study identified 14 frequent variants disrupting potential HREs. The analysis of the genomic regions containing these variants by means of reporter assays revealed that variants rs1009329, rs6593210 and rs150921338 impaired the transcriptional response to hypoxia. Finally, using genome editing we confirmed the functional role of rs6593210 in the transcriptional regulation of EGFR. In summary, we found that inter-individual variability in non-coding regions affect the response to hypoxia and could potentially impact on the progression of pulmonary diseases.
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Affiliation(s)
- Olga Roche
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas 'Alberto Sols' (CSIC-UAM), 28029 Madrid, Spain.,IdiPaz, Instituto de Investigación Sanitaria del Hospital Universitario La Paz, 28029 Madrid, Spain.,Unidad de Medicina Molecular, laboratorio de Oncología, CRIB. Universidad de Castilla-La Mancha, 02006, Albacete, Spain
| | - María Laura Deguiz
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas 'Alberto Sols' (CSIC-UAM), 28029 Madrid, Spain.,IdiPaz, Instituto de Investigación Sanitaria del Hospital Universitario La Paz, 28029 Madrid, Spain
| | - María Tiana
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas 'Alberto Sols' (CSIC-UAM), 28029 Madrid, Spain.,IdiPaz, Instituto de Investigación Sanitaria del Hospital Universitario La Paz, 28029 Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Clara Galiana-Ribote
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas 'Alberto Sols' (CSIC-UAM), 28029 Madrid, Spain
| | - Daniel Martinez-Alcazar
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas 'Alberto Sols' (CSIC-UAM), 28029 Madrid, Spain
| | - Carlos Rey-Serra
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas 'Alberto Sols' (CSIC-UAM), 28029 Madrid, Spain
| | - Beatriz Ranz-Ribeiro
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas 'Alberto Sols' (CSIC-UAM), 28029 Madrid, Spain
| | - Raquel Casitas
- IdiPaz, Instituto de Investigación Sanitaria del Hospital Universitario La Paz, 28029 Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, 28029 Madrid, Spain.,Hospital Universitario La Paz, IdiPAZ, Servicio de Neumología, 28029 Madrid, Spain
| | - Raúl Galera
- IdiPaz, Instituto de Investigación Sanitaria del Hospital Universitario La Paz, 28029 Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, 28029 Madrid, Spain.,Hospital Universitario La Paz, IdiPAZ, Servicio de Neumología, 28029 Madrid, Spain
| | - Isabel Fernández-Navarro
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, 28029 Madrid, Spain.,Hospital Universitario La Paz, IdiPAZ, Servicio de Neumología, 28029 Madrid, Spain
| | - Silvia Sánchez-Cuéllar
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, 28029 Madrid, Spain.,Servicio de Neumología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria del hospital de La Princesa, 28006 Madrid, Spain
| | - Virginie Bernard
- Departamento de Medicina, Universidad Autónoma de Madrid (UAM) 28029 Madrid, Spain
| | - Julio Ancochea
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, 28029 Madrid, Spain.,Servicio de Neumología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria del hospital de La Princesa, 28006 Madrid, Spain.,Centre for Molecular Medicine and Therapeutics, Child and Family Research Institute, Department of Medical Genetics, University of British Columbia Vancouver, British Columbia V5Z 4H4, Canada
| | - Wyeth W Wasserman
- Departamento de Medicina, Universidad Autónoma de Madrid (UAM) 28029 Madrid, Spain
| | - Francisco García-Rio
- IdiPaz, Instituto de Investigación Sanitaria del Hospital Universitario La Paz, 28029 Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, 28029 Madrid, Spain.,Hospital Universitario La Paz, IdiPAZ, Servicio de Neumología, 28029 Madrid, Spain.,Centre for Molecular Medicine and Therapeutics, Child and Family Research Institute, Department of Medical Genetics, University of British Columbia Vancouver, British Columbia V5Z 4H4, Canada
| | - Benilde Jimenez
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas 'Alberto Sols' (CSIC-UAM), 28029 Madrid, Spain.,IdiPaz, Instituto de Investigación Sanitaria del Hospital Universitario La Paz, 28029 Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Luis Del Peso
- Departamento de Bioquímica, Universidad Autónoma de Madrid (UAM) and Instituto de Investigaciones Biomédicas 'Alberto Sols' (CSIC-UAM), 28029 Madrid, Spain .,IdiPaz, Instituto de Investigación Sanitaria del Hospital Universitario La Paz, 28029 Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, 28029 Madrid, Spain
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Ji X, Zhang Y, Ku T, Yun Y, Li G, Sang N. MicroRNA-338-5p modulates pulmonary hypertension-like injuries caused by SO 2, NO 2 and PM 2.5 co-exposure through targeting the HIF-1α/Fhl-1 pathway. Toxicol Res (Camb) 2016; 5:1548-1560. [PMID: 30090456 DOI: 10.1039/c6tx00257a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Accepted: 09/06/2016] [Indexed: 01/26/2023] Open
Abstract
The role of ambient air pollution is considered to be important in the development of chronic obstructive pulmonary disease (COPD), and pulmonary hypertension (PH) is a common clinical manifestation of COPD. However, many studies have mainly focused on the adverse health effects of a single air pollutant, ignoring the combined toxicity of multiple pollutants. In the present study, we co-exposed mice to coal-burning air pollutants (SO2, NO2 and PM2.5), and confirmed PH-like injury occurrence by airflow limitation, marked abnormal endothelin-1 (ET-1) and endothelial nitric oxide synthase (eNOS) expression, and histopathological and ultrastructural alteration. Global microRNA (miRNA) arrays identified three significantly changed miRNAs homologous with humans (miR-338-5p, miR-450b-3p and miR-142-5p), and we targeted miR-338-5p based on real-time reverse transcription-PCR (RT-PCR) validation. Furthermore, bioinformatic and dual-luciferase reporter gene analyses indicated that miR-338-5p bound to 3'-UTR of hypoxia-inducible factor 1α (HIF-1α) mRNA and down-regulation of miR-338-5p led to the increased expression of HIF-1α and its related gene four-and-a-half LIM (Lin-11, Isl-1 and Mec-3) domain 1 (Fhl-1) and contributed to PH. This study provides evidence for the role of miRNAs in PH through targeting HIF-1α/Fhl-1 pathway after air pollutants co-exposure and implies new insights into the molecular markers for COPD caused by air pollution.
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Affiliation(s)
- Xiaotong Ji
- College of Environment and Resource , Research Center of Environment and Health , Shanxi University , Taiyuan , Shanxi 030006 , PR China . ; ; Tel: +86-351-7011932
| | - Yingying Zhang
- College of Environment and Resource , Research Center of Environment and Health , Shanxi University , Taiyuan , Shanxi 030006 , PR China . ; ; Tel: +86-351-7011932
| | - Tingting Ku
- College of Environment and Resource , Research Center of Environment and Health , Shanxi University , Taiyuan , Shanxi 030006 , PR China . ; ; Tel: +86-351-7011932
| | - Yang Yun
- College of Environment and Resource , Research Center of Environment and Health , Shanxi University , Taiyuan , Shanxi 030006 , PR China . ; ; Tel: +86-351-7011932
| | - Guangke Li
- College of Environment and Resource , Research Center of Environment and Health , Shanxi University , Taiyuan , Shanxi 030006 , PR China . ; ; Tel: +86-351-7011932
| | - Nan Sang
- College of Environment and Resource , Research Center of Environment and Health , Shanxi University , Taiyuan , Shanxi 030006 , PR China . ; ; Tel: +86-351-7011932
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20
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Zhang C, Qin S, Qin L, Liu L, Sun W, Li X, Li N, Wu R, Wang X. Cigarette smoke extract-induced p120-mediated NF-κB activation in human epithelial cells is dependent on the RhoA/ROCK pathway. Sci Rep 2016; 6:23131. [PMID: 27586697 PMCID: PMC5009380 DOI: 10.1038/srep23131] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 02/25/2016] [Indexed: 12/21/2022] Open
Abstract
Cigarette smoke exposure is a major cause of chronic obstructive pulmonary disease (COPD), but the underlying molecular inflammatory mechanisms remain poorly understood. Previous studies have found that smoke disrupts cell-cell adhesion by inducing epithelial barrier damage to the adherens junction proteins, primarily E-cadherin (E-cad) and p120-catenin (p120). Recently, the anti-inflammatory role of p120 has drawn increasing attention. In this study, we demonstrate that p120 has a role in the cigarette smoke extract-induced inflammatory response, presumably by regulating NF-κB signaling activation. Mechanistically, we show that p120-mediated NF-κB signaling activation in airway epithelial inflammation is partially RhoA dependent and is independent of E-cad. These results provide novel evidence for the role of p120 in the anti-inflammatory response.
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Affiliation(s)
- Chao Zhang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Shenghui Qin
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lingzhi Qin
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Liwei Liu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Wenjia Sun
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiyu Li
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Naping Li
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Renliang Wu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xi Wang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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21
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Wagner K, Gröger M, McCook O, Scheuerle A, Asfar P, Stahl B, Huber-Lang M, Ignatius A, Jung B, Duechs M, Möller P, Georgieff M, Calzia E, Radermacher P, Wagner F. Blunt Chest Trauma in Mice after Cigarette Smoke-Exposure: Effects of Mechanical Ventilation with 100% O2. PLoS One 2015. [PMID: 26225825 PMCID: PMC4520521 DOI: 10.1371/journal.pone.0132810] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Cigarette smoking (CS) aggravates post-traumatic acute lung injury and increases ventilator-induced lung injury due to more severe tissue inflammation and apoptosis. Hyper-inflammation after chest trauma is due to the physical damage, the drop in alveolar PO2, and the consecutive hypoxemia and tissue hypoxia. Therefore, we tested the hypotheses that 1) CS exposure prior to blunt chest trauma causes more severe post-traumatic inflammation and thereby aggravates lung injury, and that 2) hyperoxia may attenuate this effect. Immediately after blast wave-induced blunt chest trauma, mice (n=32) with or without 3-4 weeks of CS exposure underwent 4 hours of pressure-controlled, thoraco-pulmonary compliance-titrated, lung-protective mechanical ventilation with air or 100 % O2. Hemodynamics, lung mechanics, gas exchange, and acid-base status were measured together with blood and tissue cytokine and chemokine concentrations, heme oxygenase-1 (HO-1), activated caspase-3, and hypoxia-inducible factor 1-α (HIF-1α) expression, nuclear factor-κB (NF-κB) activation, nitrotyrosine formation, purinergic receptor 2X4 (P2XR4) and 2X7 (P2XR7) expression, and histological scoring. CS exposure prior to chest trauma lead to higher pulmonary compliance and lower PaO2 and Horovitz-index, associated with increased tissue IL-18 and blood MCP-1 concentrations, a 2-4-fold higher inflammatory cell infiltration, and more pronounced alveolar membrane thickening. This effect coincided with increased activated caspase-3, nitrotyrosine, P2XR4, and P2XR7 expression, NF-κB activation, and reduced HIF-1α expression. Hyperoxia did not further affect lung mechanics, gas exchange, pulmonary and systemic cytokine and chemokine concentrations, or histological scoring, except for some patchy alveolar edema in CS exposed mice. However, hyperoxia attenuated tissue HIF-1α, nitrotyrosine, P2XR7, and P2XR4 expression, while it increased HO-1 formation in CS exposed mice. Overall, CS exposure aggravated post-traumatic inflammation, nitrosative stress and thereby organ dysfunction and injury; short-term, lung-protective, hyperoxic mechanical ventilation have no major beneficial effect despite attenuation of nitrosative stress, possibly due to compensation of by regional alveolar hypoxia and/or consecutive hypoxemia, resulting in down-regulation of HIF-1α expression.
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MESH Headings
- Acute Lung Injury/etiology
- Acute Lung Injury/physiopathology
- Acute Lung Injury/therapy
- Animals
- Disease Models, Animal
- Female
- Hyperoxia/complications
- Hyperoxia/pathology
- Hyperoxia/physiopathology
- Hypoxia-Inducible Factor 1, alpha Subunit/metabolism
- Lung/pathology
- Lung/physiopathology
- Male
- Mice
- Mice, Inbred C57BL
- Oxidative Stress
- Pulmonary Disease, Chronic Obstructive/etiology
- Pulmonary Disease, Chronic Obstructive/physiopathology
- Pulmonary Disease, Chronic Obstructive/therapy
- Reactive Nitrogen Species/metabolism
- Receptors, Purinergic P2X/metabolism
- Respiration, Artificial/adverse effects
- Smoking/adverse effects
- Thoracic Injuries/complications
- Thoracic Injuries/physiopathology
- Thoracic Injuries/therapy
- Wounds, Nonpenetrating/complications
- Wounds, Nonpenetrating/physiopathology
- Wounds, Nonpenetrating/therapy
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Affiliation(s)
- Katja Wagner
- Institut für Anästhesiologische Pathophysiologie und Verfahrensentwicklung, Ulm, Germany
- Klinik für Anästhesiologie, Universitätsklinikum, Ulm, Germany
| | - Michael Gröger
- Institut für Anästhesiologische Pathophysiologie und Verfahrensentwicklung, Ulm, Germany
| | - Oscar McCook
- Institut für Anästhesiologische Pathophysiologie und Verfahrensentwicklung, Ulm, Germany
| | | | - Pierre Asfar
- Laboratoire HIFIH, UPRES EA 3859, PRES l’UNAM, IFR 132, CNRS UMR 6214, INSERM U1083, Université Angers, Département de Réanimation Médicale et de Médecine Hyperbare, Centre Hospitalier Universitaire, Angers, France
| | - Bettina Stahl
- Institut für Anästhesiologische Pathophysiologie und Verfahrensentwicklung, Ulm, Germany
| | - Markus Huber-Lang
- Klinik für Unfall-, Hand-, Plastische und Wiederherstellungschirurgie, Universitätsklinikum, Ulm, Germany
| | - Anita Ignatius
- Institut für Unfallchirurgische Forschung und Biomechanik, Universitätsklinikum, Ulm, Germany
| | - Birgit Jung
- Abteilung Respiratory Diseases Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach/Riss, Germany
| | - Matthias Duechs
- Abteilung Respiratory Diseases Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach/Riss, Germany
| | - Peter Möller
- Institut für Pathologie, Universitätsklinikum, Ulm, Germany
| | | | - Enrico Calzia
- Institut für Anästhesiologische Pathophysiologie und Verfahrensentwicklung, Ulm, Germany
| | - Peter Radermacher
- Institut für Anästhesiologische Pathophysiologie und Verfahrensentwicklung, Ulm, Germany
- * E-mail:
| | - Florian Wagner
- Institut für Anästhesiologische Pathophysiologie und Verfahrensentwicklung, Ulm, Germany
- Klinik für Anästhesiologie, Universitätsklinikum, Ulm, Germany
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22
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Gu C, Li Y, Xu WL, Yan JP, Xia YJ, Ma YY, Chen C, Wang HJ, Tao HQ. Sirtuin 1 Activator SRT1720 Protects Against Lung Injury via Reduction of Type II Alveolar Epithelial Cells Apoptosis in Emphysema. COPD 2014; 12:444-52. [DOI: 10.3109/15412555.2014.974740] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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23
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Li Y, Gu C, Xu W, Yan J, Xia Y, Ma Y, Chen C, He X, Tao H. Therapeutic effects of amniotic fluid-derived mesenchymal stromal cells on lung injury in rats with emphysema. Respir Res 2014; 15:120. [PMID: 25319435 PMCID: PMC4201761 DOI: 10.1186/s12931-014-0120-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Accepted: 09/30/2014] [Indexed: 11/15/2022] Open
Abstract
Background In chronic obstructive pulmonary disease (COPD), two major pathological changes that occur are the loss of alveolar structure and airspace enlargement. To treat COPD, it is crucial to repair damaged lung tissue and regenerate the lost alveoli. Type II alveolar epithelial cells (AECII) play a vital role in maintaining lung tissue repair, and amniotic fluid-derived mesenchymal stromal cells (AFMSCs) possess the characteristics of regular mesenchymal stromal cells. However, it remains untested whether transplantation of rat AFMSCs (rAFMSCs) might alleviate lung injury caused by emphysema by increasing the expression of surfactant protein (SP)A and SPC and inhibiting AECII apoptosis. Methods We analyzed the phenotypic characteristics, differentiation potential, and karyotype of rAFMSCs, which were isolated from pregnant Sprague–Dawley rats. Moreover, we examined the lung morphology and the expression levels of SPA and SPC in rats with emphysema after cigarette-smoke exposure and intratracheal lipopolysaccharide instillation and rAFMSC transplantation. The ability of rAFMSCs to differentiate was measured, and the apoptosis of AECII was evaluated. Results In rAFMSCs, the surface antigens CD29, CD44, CD73, CD90, CD105, and CD166 were expressed, but CD14, CD19, CD34, and CD45 were not detected; rAFMSCs also strongly expressed the mRNA of octamer-binding transcription factor 4, and the cells could be induced to differentiate into adipocytes and osteocytes. Furthermore, rAFMSC treatment up-regulated the levels of SPA, SPC, and thyroid transcription factor 1 and inhibited AECII apoptosis, and rAFMSCs appeared to be capable of differentiating into AECII-like cells. Lung injury caused by emphysema was alleviated after rAFMSC treatment. Conclusions rAFMSCs might differentiate into AECII-like cells or induce local regeneration of the lung alveolar epithelium in vivo after transplantation and thus could be used in COPD treatment and lung regenerative therapy.
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Affiliation(s)
- Yaqing Li
- Department of Respiratory Medicine, Zhejiang Provincial People's Hospital, No, 158, Shangtang Road, Hangzhou 310014, Zhejiang, P,R, China.
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24
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Guan Z, Ding C, Du Y, Zhang K, Zhu JN, Zhang T, He D, Xu S, Wang X, Fan J. HAF drives the switch of HIF-1α to HIF-2α by activating the NF-κB pathway, leading to malignant behavior of T24 bladder cancer cells. Int J Oncol 2013; 44:393-402. [PMID: 24316875 PMCID: PMC3898811 DOI: 10.3892/ijo.2013.2210] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 11/19/2013] [Indexed: 12/14/2022] Open
Abstract
Hypoxia is a characteristic feature of solid tumors, leading to malignant behavior. During this process, HIF family members (HIFs) and the NF-κB pathway are activated. In addition, the hypoxia-associated factor (HAF) is reported to participate in the regulation of HIFs. However, the precise relationship among HIFs, HAF and the NF-κB pathway in bladder cancer (BC) remains unknown. In the current investigation, T24 BC cells were exposed to hypoxia, or by plasmid transfection to overexpress HAF or RelA (P65) to demonstrate their roles. The results indicate that hypoxia leads to the elevation of HAF plus activation of the NF-κB pathway, accompanied by the switch of HIF-1α to HIF-2α, resulting in the enhanced ability of malignancy in T24 cells. In order to further demonstrate the significance of this switch, HIF-1α and HIF-2α were co-transfected into T24 cells with HIF-β, respectively. The following results indicate that the T24hif-2α/β cells show enhanced ability of malignancy, accompanied by the maintenance of stem-cell markers, but the T24hif-1α/β cells show higher expression of metabolism-related genes. Boyden assays and wound-healing assays indicate the enhanced ability of malignancy for T24hif-2α/β. Thus, we conclude that on the hypoxic microenvironment, the switching of HIF-1α to HIF-2α, which is driven by HAF through activating the NF-κB pathway, contributes to the malignancy of T24 cells, accompanied by the maintenance of stem-cell markers. This provides us an avenue for understanding the progression of bladder cancer.
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Affiliation(s)
- Zhenfeng Guan
- Oncology Research Lab, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, P.R. China
| | - Chen Ding
- Oncology Research Lab, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, P.R. China
| | - Yiqing Du
- Oncology Research Lab, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, P.R. China
| | - Kai Zhang
- Oncology Research Lab, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, P.R. China
| | - Jian Ning Zhu
- Oncology Research Lab, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, P.R. China
| | - Tingting Zhang
- Oncology Research Lab, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, P.R. China
| | - Dalin He
- Department of Urology, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, Xi'an, P.R. China
| | - Shan Xu
- Oncology Research Lab, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, P.R. China
| | - Xinyang Wang
- Oncology Research Lab, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, P.R. China
| | - Jinhai Fan
- Department of Urology, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, Xi'an, P.R. China
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25
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Weng T, Karmouty-Quintana H, Garcia-Morales LJ, Molina JG, Pedroza M, Bunge RR, Bruckner BA, Loebe M, Seethamraju H, Blackburn MR. Hypoxia-induced deoxycytidine kinase expression contributes to apoptosis in chronic lung disease. FASEB J 2013; 27:2013-26. [PMID: 23392349 DOI: 10.1096/fj.12-222067] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is characterized by persistent inflammation and tissue remodeling and is a leading cause of death in the United States. Increased apoptosis of pulmonary epithelial cells is thought to play a role in COPD development and progression. Identification of signaling pathways resulting in increased apoptosis in COPD can be used in the development of novel therapeutic interventions. Deoxyadenosine (dAdo) is a DNA breakdown product that amplifies lymphocyte apoptosis by being phosphorylated to deoxyadenosine triphosphate (dATP). dAdo is maintained at low levels by adenosine deaminase (ADA). This study demonstrated that mice lacking ADA developed COPD manifestations in association with elevated dAdo and dATP levels and increased apoptosis in the lung. Deoxycitidine kinase (DCK), a major enzyme for dAdo phosphorylation, was up-regulated in mouse and human airway epithelial cells in association with air-space enlargement. Hypoxia was identified as a novel regulator of DCK, and inhibition of DCK resulted in diminished dAdo-mediated apoptosis in the lungs. Our results suggest that activating the dAdo-DCK-dATP pathway directly results in increased apoptosis in the lungs of mice with air-space enlargement and suggests a novel therapeutic target for the treatment of COPD.
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Affiliation(s)
- Tingting Weng
- Department of Biochemistry and Molecular Biology, University of Texas–Houston Medical School, Houston, TX 77030, USA
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26
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Lu P, Deng S, Zhu Y, Yan Y, Liu Y, Hu C. The Zα domain of fish PKZ facilitates the B-Z conformational transition of oligonucleotide DNAs with d(GC)(n) inserts. Acta Biochim Biophys Sin (Shanghai) 2012; 44:957-63. [PMID: 23034482 DOI: 10.1093/abbs/gms081] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
PKZ (PKR-like) was discovered as a member of elF2α kinase family in fish, which possesses a conserved catalytic domain of an eIF2α kinase in C-terminal and also two Z-DNA-binding domains (Zα1 and Zα2) in N-terminal. PKZ can be activated through binding of Zα to Z-DNA. However, the regulatory function of PKZ Zα still remains unclear. To investigate a molecular mechanism of how PKZ Zα interacts with Z-DNA, we expressed Zα polypeptide Zα1α2 in Escherichia coli Rosetta strain and purified by affinity chromatography on Ni-NTA resin. Different lengths of oligonucleotide DNAs with various inserts, namely d(GC)(n) (n = 6, 8, 10, 13), d(TA)(n) (n = 6, 10), non-d(GC), and non-d(TA), were designed and synthesized. Circular dichroism spectrum and gel mobility shift assays were used to investigate the effects of Zα1α2 on the conformational transition of different oligonucleotide DNAs. Results showed that oligonucleotide DNAs retained a conventional B-DNA conformation in the absence of Zα1α2. With the increasing amount of Zα1α2 titration, d(GC)(n) were recognized and converted to Z-DNA conformation to some degree. With increasing the repeat number (from n = 6 to n = 13), the tendency of conformational transition became more obvious. However, the conformation of oligonucleotides with d(TA)(n) inserts changed a little in the presence of Zα1α2, and Zα1α2 had no effect on conformational transition of oligonucleotides with non-d(GC) or non-d(TA) inserts. Gel mobility shift assays further showed that Zα1α2 could bind to oligonucleotide with d(GC)(10). In other words, Zα1α2 can turn oligonucleotides with d(GC)(n) inserts into Z-DNA conformation and bind to it with high affinity.
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Affiliation(s)
- Puzhong Lu
- Department of Bioscience, College of Life Science and Food Engineering, Nanchang University, Nanchang 330031, China
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27
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Yu H, Li Q, Kolosov VP, Perelman JM, Zhou X. Regulation of cigarette smoke-mediated mucin expression by hypoxia-inducible factor-1α via epidermal growth factor receptor-mediated signaling pathways. J Appl Toxicol 2012; 32:282-92. [PMID: 21544845 DOI: 10.1002/jat.1679] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2010] [Revised: 01/04/2011] [Accepted: 02/04/2011] [Indexed: 02/03/2023]
Abstract
Cigarette smoking is strongly implicated in the pathogenesis of chronic obstructive pulmonary disease (COPD). Mucus hypersecretion is the key manifestation in patients with COPD and mucin 5AC (MUC5AC) is a major component of airway mucus. Hypoxia inducible factor-1 (HIF-1) is a transcriptional factor which can be stimulated to bind to the MUC5AC promoter and induce MUC5AC promoter activation. Previous studies have reported that activation of HIF-1α pathways by cigarette smoke contributes to the development of COPD. We hypothesize that cigarette smoke up-regulates HIF-1α production and HIF-1 activity through epidermal growth factor receptor (EGFR)-activated signal cascades pathways, leading to mucin production in human airway epithelial cells (16HBE). We show that cigarette smoke increases HIF-1α production, HIF-1 activity and MUC5AC expression. These effects are prevented by small interfering RNA (siRNA) for HIF-1α, indicating that cigarette smoke-induced mucin production is HIF-1α-dependent. Cigarette smoke activates extracellular signal-regulated kinase 1/2 (ERK1/2) and phosphatidylinositol 3-kinase (PI3K) signal pathways, both of which are inhibited by gefitinib (an inhibitor of EGFR), suggesting that cigarette smoke-activated signal pathways are mediated by EGFR in 16HBE cells. Furthermore, pretreatment with gefitinib and the pharmacological inhibitors of PI3K (LY294002) and ERK1/2 (PD98059) prevented cigarette smoke-mediated Akt and ERK1/2 phosphorylation responses, HIF-1α production, HIF-1 activity and MUC5AC expression. These observations demonstrate an important role for EGFR-mediated signaling pathways in regulating cigarette smoke-induced HIF-1 activation and MUC5AC expression. Our results suggest that cigarette smoke activates EGFR-mediated signaling pathways, leading to HIF-1α production and HIF-1 activation, resulting in mucin expression in human airway epithelial cells.
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Affiliation(s)
- Hongmei Yu
- Division of Respiratory Medicine, Second Affiliated Hospital, Chongqing Medical University, No. 74, Linjiang Road, Yuzhong District, Chongqing, 400010, China
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