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Liu C, Wang J, Tan Y, Liu C, Qu X, Liu H, Tan M, Deng C, Qin X, Xiang Y. CTNNAL1 promotes the structural integrity of bronchial epithelial cells through the RhoA/ROCK1 pathway. Acta Biochim Biophys Sin (Shanghai) 2024; 56:753-762. [PMID: 38602002 PMCID: PMC11177105 DOI: 10.3724/abbs.2024026] [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: 05/26/2023] [Accepted: 01/04/2024] [Indexed: 04/12/2024] Open
Abstract
Adhesion molecules play critical roles in maintaining the structural integrity of the airway epithelium in airways under stress. Previously, we reported that catenin alpha-like 1 (CTNNAL1) is downregulated in an asthma animal model and upregulated at the edge of human bronchial epithelial cells (HBECs) after ozone stress. In this work, we explore the potential role of CTNNAL1 in the structural adhesion of HBECs and its possible mechanism. We construct a CTNNAL1 ‒/‒ mouse model with CTNNAL1-RNAi recombinant adeno-associated virus (AAV) in the lung and a CTNNAL1-silencing cell line stably transfected with CTNNAL1-siRNA recombinant plasmids. Hematoxylin and eosin (HE) staining reveals that CTNNAL1 ‒/‒ mice have denuded epithelial cells and structural damage to the airway. Silencing of CTNNAL1 in HBECs inhibits cell proliferation and weakens extracellular matrix adhesion and intercellular adhesion, possibly through the action of the cytoskeleton. We also find that the expressions of the structural adhesion-related molecules E-cadherin, integrin β1, and integrin β4 are significantly decreased in ozone-treated cells than in vector control cells. In addition, our results show that the expression levels of RhoA/ROCK1 are decreased after CTNNAL1 silencing. Treatment with Y27632, a ROCK inhibitor, abolished the expressions of adhesion molecules induced by ozone in CTNNAL1-overexpressing HBECs. Overall, the findings of the present study suggest that CTNNAL1 plays a critical role in maintaining the structural integrity of the airway epithelium under ozone challenge, and is associated with epithelial cytoskeleton dynamics and the expressions of adhesion-related molecules via the RhoA/ROCK1 pathway.
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Affiliation(s)
- Caixia Liu
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral DiseasesHunan University of Chinese MedicineChangsha410208China
- School of Basic MedicineCentral South UniversityChangsha410078China
| | - Jinmei Wang
- School of Basic MedicineCentral South UniversityChangsha410078China
| | - Yurong Tan
- School of Basic MedicineCentral South UniversityChangsha410078China
| | - Chi Liu
- School of Basic MedicineCentral South UniversityChangsha410078China
| | - Xiangping Qu
- School of Basic MedicineCentral South UniversityChangsha410078China
| | - Huijun Liu
- School of Basic MedicineCentral South UniversityChangsha410078China
| | - Meiling Tan
- School of Basic MedicineCentral South UniversityChangsha410078China
| | - Changqing Deng
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral DiseasesHunan University of Chinese MedicineChangsha410208China
| | - Xiaoqun Qin
- School of Basic MedicineCentral South UniversityChangsha410078China
| | - Yang Xiang
- School of Basic MedicineCentral South UniversityChangsha410078China
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Bostancieri N, Bakir K, Kul S, Eralp A, Kayalar O, Konyalilar N, Rajabi H, Yuncu M, Yildirim AÖ, Bayram H. The effect of multiple outgrowths from bronchial tissue explants on progenitor/stem cell number in primary bronchial epithelial cell cultures from smokers and patients with COPD. Front Med (Lausanne) 2023; 10:1118715. [PMID: 37908857 PMCID: PMC10614425 DOI: 10.3389/fmed.2023.1118715] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 09/25/2023] [Indexed: 11/02/2023] Open
Abstract
Background Although studies suggest a deficiency in stem cell numbers in chronic airway diseases such as chronic obstructive pulmonary disease (COPD), the role of bronchial epithelial progenitor/stem (P/S) cells is not clear. The objectives of this study were to investigate expression of progenitor/stem (P/S) cell markers, cytokeratin (CK) 5, CK14 and p63 in bronchial epithelial explants and cell cultures obtained from smokers with and without COPD following multiple outgrowths, and to study this effect on bronchial epithelial cell (BEC) proliferation. Methods Bronchial epithelial explants were dissected from lung explants and cultured on coverslips. Confluent cultures were obtained after 3-4 weeks' (transfer, Tr1), explants were then transferred and cultured for a second (Tr2) and third (Tr3) time, respectively. At each stage, expression of CK5, CK14 and p63 in explants and BEC were determined by immunostaining. In parallel experiments, outgrowing cells from explants were counted after 4wks, and explants subsequently transferred to obtain new cultures for a further 3 times. Results As the transfer number advanced, CK5, CK14 and p63 expression was decreased in both explants and BEC from both smokers without COPD and patients with COPD, with a more pronounced decrease in BEC numbers in the COPD group. Total cell numbers cultured from explants were decreased with advancing outgrowth number in both groups. Smoking status and lung function parameters were correlated with reduced P/S marker expression and cell numbers. Conclusion Our findings suggest that the number of P/S cells in airway epithelium may play a role in the pathogenesis of COPD, as well as a role in the proliferation of airway epithelial cells, in vitro.
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Affiliation(s)
- Nuray Bostancieri
- Department of Histology and Embryology, School of Medicine, University of Gaziantep, Gaziantep, Türkiye
- Cell Culture Laboratory, Department of Chest Diseases, School of Medicine, University of Gaziantep, Gaziantep, Türkiye
| | - Kemal Bakir
- Department of Pathology, School of Medicine, University of Gaziantep, Gaziantep, Türkiye
| | - Seval Kul
- Department of Biostatistics, School of Medicine, University of Gaziantep, Gaziantep, Türkiye
| | - Ayhan Eralp
- Department of Histology and Embryology, School of Medicine, University of Gaziantep, Gaziantep, Türkiye
| | - Ozgecan Kayalar
- Koc University Research Center for Translational Medicine, Koc University, Istanbul, Türkiye
| | - Nur Konyalilar
- Koc University Research Center for Translational Medicine, Koc University, Istanbul, Türkiye
| | - Hadi Rajabi
- Koc University Research Center for Translational Medicine, Koc University, Istanbul, Türkiye
| | - Mehmet Yuncu
- Department of Histology and Embryology, School of Medicine, University of Gaziantep, Gaziantep, Türkiye
| | - Ali Önder Yildirim
- Koc University Research Center for Translational Medicine, Koc University, Istanbul, Türkiye
- Comprehensive Pneumology Center (CPC), Institute of Lung Health and Immunity (LHI), Member of the German Center for Lung Research (DZL), Helmholtz Munich, Munich, Germany
| | - Hasan Bayram
- Cell Culture Laboratory, Department of Chest Diseases, School of Medicine, University of Gaziantep, Gaziantep, Türkiye
- Koc University Research Center for Translational Medicine, Koc University, Istanbul, Türkiye
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Kapellos TS, Conlon TM, Yildirim AÖ, Lehmann M. The impact of the immune system on lung injury and regeneration in COPD. Eur Respir J 2023; 62:2300589. [PMID: 37652569 DOI: 10.1183/13993003.00589-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 08/17/2023] [Indexed: 09/02/2023]
Abstract
COPD is a devastating respiratory condition that manifests via persistent inflammation, emphysema development and small airway remodelling. Lung regeneration is defined as the ability of the lung to repair itself after injury by the proliferation and differentiation of progenitor cell populations, and becomes impaired in the COPD lung as a consequence of cell intrinsic epithelial stem cell defects and signals from the micro-environment. Although the loss of structural integrity and lung regenerative capacity are critical for disease progression, our understanding of the cellular players and molecular pathways that hamper regeneration in COPD remains limited. Intriguingly, despite being a key driver of COPD pathogenesis, the role of the immune system in regulating lung regenerative mechanisms is understudied. In this review, we summarise recent evidence on the contribution of immune cells to lung injury and regeneration. We focus on four main axes: 1) the mechanisms via which myeloid cells cause alveolar degradation; 2) the formation of tertiary lymphoid structures and the production of autoreactive antibodies; 3) the consequences of inefficient apoptotic cell removal; and 4) the effects of innate and adaptive immune cell signalling on alveolar epithelial proliferation and differentiation. We finally provide insight on how recent technological advances in omics technologies and human ex vivo lung models can delineate immune cell-epithelium cross-talk and expedite precision pro-regenerative approaches toward reprogramming the alveolar immune niche to treat COPD.
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Affiliation(s)
- Theodore S Kapellos
- Comprehensive Pneumology Center, Institute of Lung Health and Immunity, Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Thomas M Conlon
- Comprehensive Pneumology Center, Institute of Lung Health and Immunity, Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Ali Önder Yildirim
- Comprehensive Pneumology Center, Institute of Lung Health and Immunity, Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
- Institute of Experimental Pneumology, University Hospital, Ludwig Maximilians University of Munich, Munich, Germany
| | - Mareike Lehmann
- Comprehensive Pneumology Center, Institute of Lung Health and Immunity, Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
- Institute for Lung Research, Philipps University of Marburg, Universities of Giessen and Marburg Lung Center, Member of the German Center for Lung Research (DZL), Marburg, Germany
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4
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Kahraman D, İlhan S, Cangi S, Işık AF, Bağcı C, Sağlam E. Comparative assessment of primary cancer cell culture techniques and cellular composition analysis in non-small cell lung cancer. Pathol Res Pract 2023; 248:154580. [PMID: 37307622 DOI: 10.1016/j.prp.2023.154580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/23/2023] [Accepted: 05/27/2023] [Indexed: 06/14/2023]
Abstract
Preclinical models are required to study individual therapy responses to improve all cancer treatments, particularly non-small cell lung cancer (NSCLC). Patient-derived explants (PDEs) culture model is of great importance in terms of the possibility of tumor cell culture with the microenvironment, and the development of molecular mechanisms and personalized treatment methods. In our study, primary tumor culture with microenvironment was performed using different methods from tumor tissues obtained from 51 patients with NSCLC. To identify the most efficient method, mechanical, enzymatic, and tumor fluid techniques were applied. While the malignant cell rate was > 95% in 3 of these cases, the cancer-associated fibroblasts (CAF) microenvironment was high in 46 (80-94%) and low in 2 (1-79%). Subtyping of cells obtained from culture was performed using the light microscope and, if necessary, additional immunohistochemical markers. Consequently, using different techniques, here we successfully performed primary cell culture from patients with NSCLC with microenvironment. Depending on the cell type and culture conditions, proliferation rate was shown to be altered.
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Affiliation(s)
- Demet Kahraman
- Respiratory Diseases and Respiratory Surgery Research and Practice Center, Gaziantep University, Gaziantep, Turkey; Department of Medical Biochemistry, Faculty of Medicine, Gaziantep University, Gaziantep, Turkey.
| | - Sedat İlhan
- Respiratory Diseases and Respiratory Surgery Research and Practice Center, Gaziantep University, Gaziantep, Turkey
| | - Sibel Cangi
- Department of Pathology, Faculty of Medicine, Gaziantep University, Gaziantep, Turkey
| | - Ahmet Feridun Işık
- Respiratory Diseases and Respiratory Surgery Research and Practice Center, Gaziantep University, Gaziantep, Turkey; Department of Thoracic Surgery, Faculty of Medicine, Gaziantep University, Gaziantep, Turkey
| | - Cansu Bağcı
- Respiratory Diseases and Respiratory Surgery Research and Practice Center, Gaziantep University, Gaziantep, Turkey
| | - Ebru Sağlam
- Respiratory Diseases and Respiratory Surgery Research and Practice Center, Gaziantep University, Gaziantep, Turkey
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5
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Li JX, Han ZX, Cheng X, Zhang FL, Zhang JY, Su ZJ, Li BP, Jiang ZR, Li RZ, Xie Y, Yan PY, Tang L, Yang JS. Combinational study with network pharmacology, molecular docking and preliminary experiments on exploring common mechanisms underlying the effects of weijing decoction on various pulmonary diseases. Heliyon 2023; 9:e15631. [PMID: 37153415 PMCID: PMC10160751 DOI: 10.1016/j.heliyon.2023.e15631] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 04/12/2023] [Accepted: 04/17/2023] [Indexed: 05/09/2023] Open
Abstract
Objective 'Homotherapy for heteropathy' is a theory by which different diseases with similar pathogenesis can be treated with one Chinese formula. We aimed to explore the key components and core targets of Weijing decoction (WJD) in treating various lung diseases, namely, pneumonia, chronic obstructive pulmonary disease (COPD), acute lung injury (ALI), pulmonary fibrosis, pulmonary tuberculosis and non-small cell lung cancer (NSCLC), via network pharmacology, molecular docking and some experiments. Significance This is the first study on the mechanism of WJD in treating various lung diseases by 'homotherapy for heteropathy'. This study is helpful for the transformation of TCM formula and development of new drugs. Methods Active components and therapeutic targets of WJD were obtained via TCMSP and UniProt databases. Targets of the six pulmonary diseases were harvested from the GeneCards TTD, DisGeNet, UniProt and OMIM databases. Drug-disease intersection targets, corresponding Venn diagrams, herb-component-target networks and protein-protein interaction networks were established. Furthermore, GO biological function and KEGG enrichment analysis were completed. Moreover, the binding activity between main compounds and core targets was measured through molecular docking. Finally, the xenograft NSCLC mouse model was established. Immune responses were evaluated by flow cytometry and mRNA expression levels of critical targets were measured by real-time PCR. Results JUN, CASP3 and PTGS2 were the most critical targets in six pulmonary diseases. The active compounds beta-sitosterol, tricin and stigmasterol stably bound to many active sites on target proteins. WJD had extensive pharmacological regulation, involving pathways related to cancer, inflammation, infection, hypoxia, immunity and so on. Conclusions Effects of WJD against various lung diseases involve lots of compounds, targets and pathways. These findings will facilitate further research as well as clinical application of WJD.
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Affiliation(s)
- Jia-Xin Li
- Macau University of Science and Technology, Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicines, Macao, China
| | - Zhong-Xiao Han
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Xin Cheng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Feng-Lin Zhang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Jing-Yi Zhang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Zi-Jie Su
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Biao-Ping Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Zhi-Rui Jiang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Run-Ze Li
- Guangdong Provincial Academy of Chinese Medical Sciences, State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou 510006, China
| | - Ying Xie
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, Guangdong Province, China
| | - Pei-Yu Yan
- Macau University of Science and Technology, Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicines, Macao, China
- Corresponding author.
| | - Ling Tang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
- Corresponding author.
| | - Jia-Shun Yang
- Department of Rehabilitation Medicine, The Seventh Affiliated Hospital of Southern Medical University, Foshan 528244, China
- Corresponding author.
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Gao J, Liang Y, Chen J, Shen H, Liu H. CXCR4 enhances the inhibitory effects of bone mesenchymal stem cells on lung cell apoptosis in a rat model of smoking-induced COPD. Apoptosis 2023; 28:639-652. [PMID: 36719470 PMCID: PMC9888343 DOI: 10.1007/s10495-022-01800-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/04/2022] [Indexed: 02/01/2023]
Abstract
Chronic obstructive pulmonary disease is the 3rd leading cause of death worldwide, and the available treatments are unsatisfactory, resulting in a major economic burden. As cellular therapy is commonly used for lung disease, we investigated a treatment with CXCR4-overexpressing BMSCs in a COPD model. We extracted and purified Bone marrow mesenchymal stem cells (BMSCs) from SD rats. COPD apoptosis model was established by cigarette smoke exposure. BMSCs (1 × 106 cells per injection)were transplanted in vivo twice a month during model establishment, and alveolar rupture in the lung was assessed. Lung cell apoptosis was assessed by terminal deoxynucleotidyl transferase biotin-dUTP nick end labeling (TUNEL) analysis, and the concentrations of apoptotic proteins in the lungs were detected by Western blotting. We successfully isolated BMSCs and established CXCR4-overexpressing BMSCs. qRT‒PCR and Western blotting detection both reveal that CXCR4 mRNA level and protein both significantly higher expression in CXCR4-BMSCs than the pBABE-BMSCs. Continuous cigarette smoke exposure caused alveolar septal rupture: In the model group, the alveolar mean linear intercept in the first month was significantly lower than that in the third month (p < 0.05). In the third month, the alveolar mean linear intercept values of the control and CXCR4-BMSC groups were lower than those of the model group (control group p < 0.01, CXCR4-BMSC group p < 0.05), and TUNEL staining revealed that the apoptosis rates of the control and CXCR4-BMSC groups were significantly lower than those of the model group (p < 0.01). Furthermore, the levels of the apoptotic proteins cleaved caspase-8, cleaved caspase-3 and cleaved PARP-1 were higher in the model group than in the control group (p < 0.05) and significantly lower in the CXCR4-BMSC group than in the model group (p < 0.05). The transplantation of CXCR4-overexpressing BMSCs during COPD model generation significantly inhibited apoptosis via the extrinsic apoptosis pathway. CXCR4 enhances the inhibitory effects of bone mesenchymal stem cells on lung cell apoptosis in a rat model of smoking-induced COPD.
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Affiliation(s)
- Jiansheng Gao
- First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Yuli Liang
- First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Jiabao Chen
- First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Huihui Shen
- First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Hua Liu
- First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China.
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7
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Biological and Genetic Mechanisms of COPD, Its Diagnosis, Treatment, and Relationship with Lung Cancer. Biomedicines 2023; 11:biomedicines11020448. [PMID: 36830984 PMCID: PMC9953173 DOI: 10.3390/biomedicines11020448] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/26/2023] [Accepted: 01/31/2023] [Indexed: 02/09/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is one of the most prevalent chronic adult diseases, with significant worldwide morbidity and mortality. Although long-term tobacco smoking is a critical risk factor for this global health problem, its molecular mechanisms remain unclear. Several phenomena are thought to be involved in the evolution of emphysema, including airway inflammation, proteinase/anti-proteinase imbalance, oxidative stress, and genetic/epigenetic modifications. Furthermore, COPD is one main risk for lung cancer (LC), the deadliest form of human tumor; formation and chronic inflammation accompanying COPD can be a potential driver of malignancy maturation (0.8-1.7% of COPD cases develop cancer/per year). Recently, the development of more research based on COPD and lung cancer molecular analysis has provided new light for understanding their pathogenesis, improving the diagnosis and treatments, and elucidating many connections between these diseases. Our review emphasizes the biological factors involved in COPD and lung cancer, the advances in their molecular mechanisms' research, and the state of the art of diagnosis and treatments. This work combines many biological and genetic elements into a single whole and strongly links COPD with lung tumor features.
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8
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Pei Y, Zhang J, Qu J, Rao Y, Li D, Gai X, Chen Y, Liang Y, Sun Y. Complement component 3 protects human bronchial epithelial cells from cigarette smoke-induced oxidative stress and prevents incessant apoptosis. Front Immunol 2022; 13:1035930. [PMID: 36605203 PMCID: PMC9807617 DOI: 10.3389/fimmu.2022.1035930] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022] Open
Abstract
The complement component 3 (C3) is a pivotal element of the complement system and plays an important role in innate immunity. A previous study showed that intracellular C3 was upregulated in airway epithelial cells (AECs) from individuals with end-stage chronic obstructive pulmonary disease (COPD). Accumulating evidence has shown that cigarette smoke extract (CSE) induces oxidative stress and apoptosis in AECs. Therefore, we investigated whether C3 modulated cigarette smoke-induced oxidative stress and apoptosis in AECs and participated in the pathogenesis of COPD. We found increased C3 expression, together with increased oxidative stress and apoptosis, in a cigarette smoke-induced mouse model of COPD and in AECs from patients with COPD. Different concentrations of CSEinduced C3 expression in 16HBE cells in vitro. Interestingly, C3 knockdown (KD) exacerbated oxidative stress and apoptosis in 16HBE cells exposed to CSE. Furthermore, C3 exerted its pro-survival effects through JNK inhibition, while exogenous C3 partially rescued CSE-induced cell death and oxidative stress in C3 KD cells. These data indicate that locally produced C3 is an important pro-survival molecule in AECs under cigarette smoke exposure, revealing a potentially novel mechanism in the pathogenesis of COPD.
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Affiliation(s)
| | - Jing Zhang
- *Correspondence: Jing Zhang, ; Yongchang Sun,
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Toy HI, Yildiz AB, Tasdemir Kahraman D, Ilhan S, Dikensoy O, Bayram H. Capsaicin suppresses ciliary function, while inducing permeability in bronchial epithelial cell cultures of COPD patients. Front Pharmacol 2022; 13:996046. [PMID: 36278231 PMCID: PMC9582664 DOI: 10.3389/fphar.2022.996046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 09/20/2022] [Indexed: 11/20/2022] Open
Abstract
Take Home Message: Capsaicin modified inflammatory response and caused toxicity in bronchial epithelial cultures from patients with COPD. More importantly, capsaicin decreased ciliary beat frequency and induced epithelial permeability and these effects were partially prevented by formoterol and roflumilast. Tear gas is widely used to halt mass demonstrations. Studies have reported its adverse effects on multiple organ systems; however, its effect on individuals with chronic respiratory diseases and the underlying mechanisms of these effects are unclear. For the first time in the literature, we investigated the effects of capsaicin, the active ingredient of tear gas, on bronchial epithelial cell (BEC) cultures obtained from well-characterized groups of nonsmokers, smokers, and patients with chronic obstructive pulmonary disease (COPD). BEC cultures were incubated with 50-500 μM capsaicin in the absence and presence of formoterol (1μM) and roflumilast (0.1 μM) for 24 h. Ciliary beat frequency (CBF) and transepithelial electrical resistance (TEER) were assessed at T1/4, T1/2, T1, T2, T4, T6, and T24 h, whereas the release of granulocyte-macrophage colony-stimulating factor (GM-CSF), interleukin (IL)-8, and lactate dehydrogenase (LDH) was measured at T24 h. Capsaicin (250 µM) significantly decreased CBF of all BEC cultures from T1/4 h to T24 h (p<0.05). Formoterol significantly prevented decreases in CBF induced by capsaicin. Higher concentrations of capsaicin (250-500 μM) significantly reduced TEER of BECs from nonsmokers (T2-T24 h), smokers (T24 h) and COPD patients (T2 and T24 h), which was partially prevented by roflumilast. Capsaicin (500 μM) decreased release of IL-8 (p<0.0001) and GM-CSF (p<0.05) while inducing release of LDH in BECs (p<0.05), and this was more prominent in BEC from patients with COPD. In conclusion, our findings demonstrate that capsaicin can suppress ciliary activity and cytokine release from BECs, induce BEC culture permeability and cellular toxicity and that these effects can be partially prevented by formoterol and roflumilast.
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Affiliation(s)
- Halil Ibrahim Toy
- Gaziantep University School of Medicine, Respiratory Research Laboratory, Gaziantep, Türkiye
- Izmir Biomedicine and Genome Center, Izmir, Türkiye
- Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, Izmir, Türkiye
- Department of Epidemiology and Cancer Control, St. Jude Childrens Research Hospital, Memphis, TN, United States
| | | | - Demet Tasdemir Kahraman
- Gaziantep University School of Medicine, Respiratory Research Laboratory, Gaziantep, Türkiye
- Gaziantep University, Faculty of Medicine, Department of Medical Biochemistry, Gaziantep, Türkiye
| | - Sedat Ilhan
- Gaziantep University School of Medicine, Respiratory Research Laboratory, Gaziantep, Türkiye
- Gaziantep University, Institute of Health Sciences, Department of Respiratory Biology, Gaziantep, Türkiye
| | - Oner Dikensoy
- Department of Chest Diseases, Gaziantep University School of Medicine, Gaziantep, Türkiye
| | - Hasan Bayram
- Gaziantep University School of Medicine, Respiratory Research Laboratory, Gaziantep, Türkiye
- Department of Chest Diseases, Gaziantep University School of Medicine, Gaziantep, Türkiye
- Department of Pulmonary Medicine, Koc University School of Medicine, Istanbul, Türkiye
- Koc University Research Centre for Translational Medicine (KUTTAM), Koç University, Istanbul, Türkiye
- *Correspondence: Hasan Bayram,
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Song Q, Zhou ZJ, Cai S, Chen Y, Chen P. Oxidative stress links the tumour suppressor p53 with cell apoptosis induced by cigarette smoke. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2022; 32:1745-1755. [PMID: 33825597 DOI: 10.1080/09603123.2021.1910211] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/24/2021] [Indexed: 06/12/2023]
Abstract
This study was to investigate the effects of oxidative stress in cigarette smoke (CS)-induced cell apoptosis in mice with emphysema. Thirty-two mice were divided into four groups: the control group, the CS group, the CS + Pifithrin-α group, and the CS + NAC group. Pathological changes and apoptosis in lung tissue of mice were detected. The activity of malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), and total antioxidant capacity (T-AOC) were measured using spectrophotometer. The proteins expression of p53, Bcl-2, Bax, and caspase-3 were determined by western blot. The results showed that cell apoptosis, lung structural damage, and the activity of MDA, as well as the expression of apoptosis-related proteins Bax, total caspase-3, and cleaved caspase-3 were increased in CS-treated mice. The activity of SOD, CAT, and T-AOC, as well as the expression of anti-apoptosis protein Bcl-2 were decreased in CS-treated mice when compared with the control group. However, Pifithrin-α (p53 inhibitor) and N-Acetylcysteine (NAC) could reduce cell apoptosis, lung structural damage and oxidative stress, accelerate the expression of Bcl-2, while suppressing the expression of Bax, total caspase-3 and cleaved caspase-3. More importantly, the treatment with NAC even inhibited the expression of p53. In conclusions, oxidative stress linking the p53 is involved in cell apoptosis in CS-treated emphysema mice.
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Affiliation(s)
- Qing Song
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Respiratory Disease, Central South University, Changsha, China
- Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, China
| | - Zi-Jing Zhou
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Respiratory Disease, Central South University, Changsha, China
- Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, China
| | - Shan Cai
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Respiratory Disease, Central South University, Changsha, China
- Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, China
| | - Yan Chen
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Respiratory Disease, Central South University, Changsha, China
- Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, China
| | - Ping Chen
- Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Respiratory Disease, Central South University, Changsha, China
- Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, China
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11
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Zhang C, Gu S, Kang X. CircRNA circ_0006892 regulates miR-24/PHLPP2 axis to mitigate cigarette smoke extract-induced bronchial epithelial cell injury. Biotechnol Appl Biochem 2022; 69:735-748. [PMID: 33734482 DOI: 10.1002/bab.2148] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 01/29/2021] [Indexed: 12/22/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a chronic airway disorder mainly resulted from cigarette smoke exposure. The dysregulated circular RNAs (circRNAs) are relevant to the pathogenesis of COPD. This study aims to explore the function and mechanism of circRNA hsa_circ_0006892 (circ_0006892) in cigarette smoke extract (CSE)-induced bronchial epithelial injury. The lung tissues were collected from 17 nonsmokers and 23 smokers with COPD. The bronchial epithelial cells (BEAS-2B and 16HBE) were stimulated via CSE. Circ_0006892, microRNA-24 (miR-24), and PH domain and leucine-rich repeat protein phosphatase 2 (PHLPP2) abundances were examined via a quantitative reverse transcription polymerase chain reaction or Western blot. Cell viability, apoptosis, and inflammatory response were assessed via cell counting kit-8 (CCK-8), flow cytometry, and enzyme-linked immunosorbent assay (ELISA). The target relationship of miR-24 and circ_0006892 or PHLPP2 was tested via dual-luciferase reporter analysis, RNA immunoprecipitation, and RNA pull-down. Circ_0006892 expression was reduced in lung tissues of smokers with COPD and CSE-stimulated bronchial epithelial cells. Circ_0006892 overexpression alleviated CSE-induced viability reduction and promotion of apoptosis and inflammatory response. MiR-24 was bound via circ_0006892, and miR-24 overexpression reversed the effect of circ_0006892 on CSE-induced injury. PHLPP2 was targeted via miR-24, and miR-24 knockdown mitigated CSE-induced viability reduction and promotion of apoptosis and inflammatory response via regulating PHLPP2. Circ_0006892 could promote PHLPP2 expression via regulating miR-24. Circ_0006892 attenuated CSE-induced bronchial epithelial cell apoptosis and inflammatory response via regulating miR-24/PHLPP2 axis.
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Affiliation(s)
- Chenying Zhang
- Department of Respiratory Medicine, The Hospital of Lianyungang Affiliated Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Shuangshuang Gu
- Department of Emergency, Nanjing Drum Tower Hospital Affiliated to Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Xiuwen Kang
- Department of Intensive Care Unit, The Hospital of Lianyungang Affiliated Xuzhou Medical University, Lianyungang, Jiangsu, China
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12
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Ma Y, Liu X, Luo L, Li H, Zeng Z, Chen Y. Effect of pirfenidone protecting against cigarette smoke
extract induced apoptosis. Tob Induc Dis 2022; 20:24. [PMID: 35291559 PMCID: PMC8886422 DOI: 10.18332/tid/146169] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 08/15/2021] [Accepted: 01/26/2022] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION Apoptosis of lung structural cells is a significant upstream event involved in COPD pathogenesis. This study was designed to explore whether pirfenidone (PFD) was able to attenuate apoptosis induced by cigarette smoke extract (CSE). METHODS A method of intraperitoneal CSE injection to BALB/C mice was used to establish emphysema mouse model. Terminal deoxynucleotidyl transferase dUTPnick end labeling (TUNEL) assay was applied to evaluate apoptotic cell ratio in mouse lung tissue. The cell viability of HBECs exposed to different concentrations of PFD was measured by Cell Counting Kit-8 (CCK-8) assay. The apoptosis index (AI) of HBECs was tested by flow cytometry. Levels of apoptosis-related protein were determined by Western blotting. RESULTS PFD treatment significantly decreased the AI value in emphysema mouse lung tissue by TUNEL. In HBECs, flow cytometry showed that PFD could significantly reduce AI led by CSE. Both in vitro and in vivo, protein levels of Bax and Cleaved-caspase 3 in CSE group significantly increased in contrast with the control group; while Bcl-2 protein level in CSE group was significantly decreased; moreover, PFD significantly reversed protein level changes of Bcl-2, Bax, and Cleaved-caspase 3 led by CSE. CONCLUSIONS This study reveals that PFD may potentially protect against CSE induced apoptosis.
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Affiliation(s)
- Yiming Ma
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiangming Liu
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Lijuan Luo
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Herui Li
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Zihang Zeng
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yan Chen
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
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13
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Kahraman DT, Karaküçük-İyidoğan A, Saygideger Y, Oruç-Emre EE, Taskin-Tok T, Başaran E, İlhan S, Demir BS, Üren A, Bayram H. Discovery of new chiral sulfonamides bearing benzoxadiazole as HIF inhibitors for non-small cell lung cancer therapy: design, microwave-assisted synthesis, binding affinity, in vitro antitumoral activities and in silico studies. NEW J CHEM 2022. [DOI: 10.1039/d1nj03809e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thirty-four chiral compounds having benzoxadiazole and sulfonamide moieties on the skeleton have been synthesized. The in vitro cytotoxic activity and apoptotic effects of these compounds have been evaluated using the A549 lung cancer cell line.
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Affiliation(s)
- Demet Taşdemir Kahraman
- Gaziantep University, Faculty of Medicine, Department of Medical Biochemistry, Cell Culture Laboratory, Gaziantep, Turkey
- Gaziantep University, Institute of Health Sciences, Department of Respiratory Biology, Gaziantep, Turkey
| | | | - Yasemin Saygideger
- Department of Chest Diseases, Cukurova University School of Medicine, Adana, Turkey
- Department of Translational Medicine, Institute of Health Sciences, Cukurova University, Adana, Turkey
- Georgetown University, Department of Oncology, Washington DC, USA
| | - Emine Elçin Oruç-Emre
- Gaziantep University, Faculty of Science and Arts, Department of Chemistry, Gaziantep, Turkey
| | - Tugba Taskin-Tok
- Gaziantep University, Faculty of Science and Arts, Department of Chemistry, Gaziantep, Turkey
- Gaziantep University, Institute of Health Sciences, Department of Bioinformatics and Computational Biology, Gaziantep, Turkey
| | - Eyüp Başaran
- Gaziantep University, Faculty of Science and Arts, Department of Chemistry, Gaziantep, Turkey
- Batman University, Department of Chemistry and Chemical Processing Technologies, Batman, Turkey
| | - Sedat İlhan
- Gaziantep University, Institute of Health Sciences, Department of Respiratory Biology, Gaziantep, Turkey
| | - Burcu Saygıdeğer Demir
- Department of Biotechnology, Institute of Natural and Applied Sciences, Cukurova University, Adana, Turkey
| | - Aykut Üren
- Georgetown University, Department of Oncology, Washington DC, USA
| | - Hasan Bayram
- Gaziantep University, Faculty of Medicine, Department of Pulmonary Diseases, Gaziantep, Turkey
- Koç University, School of Medicine, Department of Pulmonary Medicine, Koç University Research Center for Translational Medicine (KUTTAM), İstanbul, Turkey
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14
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Xue H, Xie B, Xu N, Li H, Chen Q, Xie W, Wang H. Etanercept Protected Against Cigarette Smoke Extract-Induced Inflammation and Apoptosis of Human Pulmonary Artery Endothelial Cells via Regulating TNFR1. Int J Chron Obstruct Pulmon Dis 2021; 16:1329-1345. [PMID: 34007171 PMCID: PMC8123949 DOI: 10.2147/copd.s295580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 03/21/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose Etanercept (ETN), a tumor necrosis factor-α (TNF-α) inhibitor, has been applied in the treatment of many diseases. However, whether it has effects on chronic obstructive pulmonary disease (COPD) and its interaction with tumor necrosis factor receptor 1 (TNFR1) remained unknown. Methods Histopathological analysis of lung tissues from non-smokers and smokers with or without COPD was conducted using hematoxylin–eosin (H&E) staining, Van Gieson (VG) staining, and terminal transferase-mediated biotin dUTP nick end labeling (TUNEL). TNF-α content was measured using Immunohistochemistry. Correlation analysis among apoptosis rate, smoke index, the FEV1/FVC ratio, and TNF-α-positive cells was performed. After ETN treatment and transfection of overexpressed or silenced TNFR1, levels of inflammatory cytokines, apoptosis and related genes expressions in cigarette smoke extract (CSE)-treated human pulmonary artery endothelial cells (HPAECs) were detected using enzyme-linked immunosorbent assay (ELISA), Hoechst 33342 staining, flow cytometry, quantitative real-time PCR (qRT-PCR) and Western blot. Results Pulmonary arterial remodeling and increased apoptotic and TNF-α+ HPAECs were found in lung tissue of smokers with or without COPD, with higher degrees in smokers with COPD. The numbers of apoptotic and TNF-α+ HPAECs were positively correlated with smoke index, while the FEV1/FVC ratio was negatively correlated with apoptotic HPAECs. In HPAECs, ETN downregulated the expressions of proteins related to CSE-induced apoptosis and the TNF receptor family, decreased CSE-induced cell apoptosis and inflammatory cytokine levels, and inhibited TNFR1 expression and p65 phosphorylation. Overexpressed TNFR1 reversed the effects of ETN on CSE-treated HPAECs, whereas silencing TNFR1 did the opposite. Conclusion ETN protected HPAECs against CSE-induced inflammation and apoptosis via downregulating TNFR1, thus providing a potential therapy for smoking-induced COPD.
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Affiliation(s)
- Hong Xue
- Department of Respiratory and Critical Care Medicine, Fujian Provincial Hospital, Fuzhou, Fujian, People's Republic of China.,Provincial School of Clinical Medicine, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Baosong Xie
- Department of Respiratory and Critical Care Medicine, Fujian Provincial Hospital, Fuzhou, Fujian, People's Republic of China.,Provincial School of Clinical Medicine, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Nengluan Xu
- Department of Respiratory and Critical Care Medicine, Fujian Provincial Hospital, Fuzhou, Fujian, People's Republic of China.,Provincial School of Clinical Medicine, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Hongru Li
- Department of Respiratory and Critical Care Medicine, Fujian Provincial Hospital, Fuzhou, Fujian, People's Republic of China.,Provincial School of Clinical Medicine, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Qianshun Chen
- Provincial School of Clinical Medicine, Fujian Medical University, Fuzhou, Fujian, People's Republic of China.,Department of Thoracic Surgery, Fujian Provincial Hospital, Fuzhou, Fujian, People's Republic of China
| | - Weiping Xie
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Hong Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
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15
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Bchir S, Boumiza S, Ben Nasr H, Garrouch A, Kallel I, Tabka Z, Chahed K. Impact of cathepsin D activity and C224T polymorphism (rs17571) on chronic obstructive pulmonary disease: correlations with oxidative and inflammatory markers. Clin Exp Med 2021; 21:457-465. [PMID: 33611777 DOI: 10.1007/s10238-021-00692-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 02/08/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND Cathepsin D (CTSD) is an aspartyl proteinase that plays an important role in protein degradation, antigen processing and apoptosis. It has been associated with several pathologies such as cancer, Alzheimer's disease and inflammatory disorders. Its function in lung diseases remains, however, controversial. In the current study, we determined CTSD activity in serum of patients with chronic obstructive pulmonary disease (COPD) and evaluated the correlations between this proteinase and inflammatory and oxidative parameters. We also investigated the impact of a CTSD C224T polymorphism on enzyme activity and clinicopathological parameters. METHODS Our population included 211 healthy controls and 138 patients with COPD. CTSD activity, MMPs (-1/-7/-12), cytokines (IL-6, TNF-α), malondialdehyde (MDA), nitric oxide and peroxynitrite levels were measured in patients and controls using standard methods. Genotyping of CTSD C224T polymorphism was determined using PCR-RFLP. RESULTS Our results showed an increased CTSD activity in COPD patients compared to healthy controls (4.87 [3.99-6.07] vs. 3.94 [2.91-5.84], respectively, p < 0.001). COPD smokers presented also a higher CTSD activity when compared to nonsmokers (4.91[3.98-6.18] vs. 4.65[4.16-5.82], respectively, p = 0.01), while no differences were found when subjects were compared according to their GOLD stages. The activity of this proteinase was not dependent on the C224T polymorphism because we did not found any influence of this SNP on proteinase activity among patients and controls. Furthermore, our data provide the first evidence of the interrelationships between CTSD activity and both MMPs and TNF-α levels (MMP-1[r = - 0.4; p = 0.02], MMP-7[r = 0.37; p = 0.04], MMP-12[r = 0.43; p = 0.02], TNF-α [r = 0.89, p = 0.001]) in COPD smokers. There were no correlations, however, between CTSD activity and oxidative stress parameters in controls and patients. CONCLUSION Our findings suggest that CTSD could be a relevant marker for COPD disease. Alteration of CTSD activity may be related to increased MMPs and TNF-α levels, particularly in COPD smokers.
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Affiliation(s)
- Sarra Bchir
- Laboratoire de Recherche LR19ES09, Physiologie de L'Exercice Et Physiopathologie : de L'Intégré Au Moléculaire Biologie, Médecine Et Santé, Faculté de Médecine de Sousse, Université de Sousse, Sousse, Tunisia.
| | - Soumaya Boumiza
- Laboratoire de Recherche LR19ES09, Physiologie de L'Exercice Et Physiopathologie : de L'Intégré Au Moléculaire Biologie, Médecine Et Santé, Faculté de Médecine de Sousse, Université de Sousse, Sousse, Tunisia
| | - Hela Ben Nasr
- Laboratoire de Recherche LR19ES09, Physiologie de L'Exercice Et Physiopathologie : de L'Intégré Au Moléculaire Biologie, Médecine Et Santé, Faculté de Médecine de Sousse, Université de Sousse, Sousse, Tunisia.,Institut Des Sciences Infirmières, Sousse, Tunisia
| | | | - Imen Kallel
- Laboratoire de Recherche Toxicologie Microbiologie Environnementale Et Santé LR17ES06, Faculté Des Sciences de Sfax, Université de Sfax, Sfax, Tunisia
| | - Zouhair Tabka
- Laboratoire de Recherche LR19ES09, Physiologie de L'Exercice Et Physiopathologie : de L'Intégré Au Moléculaire Biologie, Médecine Et Santé, Faculté de Médecine de Sousse, Université de Sousse, Sousse, Tunisia
| | - Karim Chahed
- Laboratoire de Recherche LR19ES09, Physiologie de L'Exercice Et Physiopathologie : de L'Intégré Au Moléculaire Biologie, Médecine Et Santé, Faculté de Médecine de Sousse, Université de Sousse, Sousse, Tunisia.,Faculté Des Sciences de Sfax, Université de Sfax, Sfax, Tunisia
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16
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Ween MP, White JB, Tran HB, Mukaro V, Jones C, Macowan M, Hodge G, Trim PJ, Snel MF, Hodge SJ. The role of oxidised self-lipids and alveolar macrophage CD1b expression in COPD. Sci Rep 2021; 11:4106. [PMID: 33602992 PMCID: PMC7892841 DOI: 10.1038/s41598-021-82481-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 12/28/2020] [Indexed: 02/08/2023] Open
Abstract
In chronic obstructive pulmonary disease (COPD) apoptotic bronchial epithelial cells are increased, and their phagocytosis by alveolar macrophages (AM) is decreased alongside bacterial phagocytosis. Epithelial cellular lipids, including those exposed on uncleared apoptotic bodies, can become oxidized, and may be recognized and presented as non-self by antigen presenting cells. CD1b is a lipid-presenting protein, previously only described in dendritic cells. We investigated whether CD1b is upregulated in COPD AM, and whether lipid oxidation products are found in the airways of cigarette smoke (CS) exposed mice. We also characterise CD1b for the first time in a range of macrophages and assess CD1b expression and phagocytic function in response to oxidised lipid. Bronchoalveolar lavage and exhaled breath condensate were collected from never-smoker, current-smoker, and COPD patients and AM CD1b expression and airway 8-isoprostane levels assessed. Malondialdehyde was measured in CS-exposed mouse airways by confocal/immunofluorescence. Oxidation of lipids produced from CS-exposed 16HBE14o- (HBE) bronchial epithelial cells was assessed by spectrophotometry and changes in lipid classes assessed by mass spectrometry. 16HBE cell toxicity was measured by flow cytometry as was phagocytosis, CD1b expression, HLA class I/II, and mannose receptor (MR) in monocyte derived macrophages (MDM). AM CD1b was significantly increased in COPD smokers (4.5 fold), COPD ex-smokers (4.3 fold), and smokers (3.9 fold), and AM CD1b significantly correlated with disease severity (FEV1) and smoking pack years. Airway 8-isoprostane also increased in smokers and COPD smokers and ex-smokers. Malondialdehyde was significantly increased in the bronchial epithelium of CS-exposed mice (MFI of 18.18 vs 23.50 for control). Oxidised lipid was produced from CS-exposed bronchial epithelial cells (9.8-fold of control) and showed a different overall lipid makeup to that of control total cellular lipid. This oxidised epithelial lipid significantly upregulated MDM CD1b, caused bronchial epithelial cell toxicity, and reduced MDM phagocytic capacity and MR in a dose dependent manner. Increased levels of oxidised lipids in the airways of COPD patients may be responsible for reduced phagocytosis and may become a self-antigen to be presented by CD1b on macrophages to perpetuate disease progression despite smoking cessation.
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Affiliation(s)
- Miranda P Ween
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, Australia. .,School of Medicine, Faculty of Health Sciences, University of Adelaide, Adelaide, Australia.
| | - Jake B White
- School of Medicine, Faculty of Health Sciences, University of Adelaide, Adelaide, Australia.,Proteomics, Metabolomics and MS Imaging Core Facility, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, Australia.,Vascular Research Centre, Lifelong Health Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, Australia
| | - Hai B Tran
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, Australia.,School of Medicine, Faculty of Health Sciences, University of Adelaide, Adelaide, Australia
| | - Violet Mukaro
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, Australia.,Department of Critical Care, Melbourne Medical School, University of Melbourne, Melbourne, Australia
| | - Charles Jones
- School of Medicine, Faculty of Health Sciences, University of Adelaide, Adelaide, Australia
| | - Matthew Macowan
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, Australia.,School of Medicine, Faculty of Health Sciences, University of Adelaide, Adelaide, Australia
| | - Gregory Hodge
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, Australia.,School of Medicine, Faculty of Health Sciences, University of Adelaide, Adelaide, Australia
| | - Paul J Trim
- School of Medicine, Faculty of Health Sciences, University of Adelaide, Adelaide, Australia.,Proteomics, Metabolomics and MS Imaging Core Facility, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, Australia
| | - Marten F Snel
- School of Medicine, Faculty of Health Sciences, University of Adelaide, Adelaide, Australia.,Proteomics, Metabolomics and MS Imaging Core Facility, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, Australia
| | - Sandra J Hodge
- School of Medicine, Faculty of Health Sciences, University of Adelaide, Adelaide, Australia
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17
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Yuan L, Wang L, Du X, Qin L, Yang M, Zhou K, Wu M, Yang Y, Zheng Z, Xiang Y, Qu X, Liu H, Qin X, Liu C. The DNA methylation of FOXO3 and TP53 as a blood biomarker of late-onset asthma. J Transl Med 2020; 18:467. [PMID: 33298101 PMCID: PMC7726856 DOI: 10.1186/s12967-020-02643-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 11/27/2020] [Indexed: 12/12/2022] Open
Abstract
Background Late-onset asthma (LOA) is beginning to account for an increasing proportion of asthma patients, which is often underdiagnosed in the elderly. Studies on the possible relations between aging-related genes and LOA contribute to the diagnosis and treatment of LOA. Forkhead Box O3 (FOXO3) and TP53 are two classic aging-related genes. DNA methylation varies greatly with age which may play an important role in the pathogenesis of LOA. We supposed that the differentially methylated sites of FOXO3 and TP53 associated with clinical phenotypes of LOA may be useful biomarkers for the early screening of LOA. Methods The mRNA expression and DNA methylation of FOXO3 and TP53 in peripheral blood of 43 LOA patients (15 mild LOA, 15 moderate LOA and 13 severe LOA) and 60 healthy controls (HCs) were determined. The association of methylated sites with age was assessed by Cox regression to control the potential confounders. Then, the correlation between differentially methylated sites (DMSs; p-value < 0.05) and clinical lung function in LOA patients was evaluated. Next, candidate DMSs combining with age were evaluated to predict LOA by receiver operating characteristic (ROC) analysis and principal components analysis (PCA). Finally, HDM-stressed asthma model was constructed, and DNA methylation inhibitor 5-Aza-2′-deoxycytidine (5-AZA) were used to determine the regulation of DNA methylation on the expression of FOXO3 and TP53. Results Compared with HCs, the mRNA expression and DNA methylation of FOXO3 and TP53 vary significantly in LOA patients. Besides, 8 DMSs from LOA patients were identified. Two of the DMSs, chr6:108882977 (FOXO3) and chr17:7591672 (TP53), were associated with the severity of LOA. The combination of the two DMSs and age could predict LOA with high accuracy (AUC values = 0.924). In HDM-stressed asthma model, DNA demethylation increased the expression of FOXO3 and P53. Conclusions The mRNA expression of FOXO3 and TP53 varies significantly in peripheral blood of LOA patients, which may be due to the regulation of DNA methylation. FOXO3 and TP53 methylation is a suitable blood biomarker to predict LOA, which may be useful targets for the risk diagnosis and clinical management of LOA.
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Affiliation(s)
- Lin Yuan
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Department of Physiology, Xiangya School of Basic Medicine Science, Central South University, Changsha, 410078, Hunan, China.,Basic and Clinical Research Laboratory of Major Respiratory Diseases, Central South University, Changsha, Hunan, China
| | - Leyuan Wang
- Department of Physiology, Xiangya School of Basic Medicine Science, Central South University, Changsha, 410078, Hunan, China
| | - Xizi Du
- Department of Physiology, Xiangya School of Basic Medicine Science, Central South University, Changsha, 410078, Hunan, China
| | - Ling Qin
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Basic and Clinical Research Laboratory of Major Respiratory Diseases, Central South University, Changsha, Hunan, China
| | - Ming Yang
- Centre for Asthma and Respiratory Disease, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW, Australia
| | - Kai Zhou
- Department of Physiology, Xiangya School of Basic Medicine Science, Central South University, Changsha, 410078, Hunan, China
| | - Mengping Wu
- Department of Physiology, Xiangya School of Basic Medicine Science, Central South University, Changsha, 410078, Hunan, China
| | - Yu Yang
- Department of Physiology, Xiangya School of Basic Medicine Science, Central South University, Changsha, 410078, Hunan, China
| | - Zhiyuan Zheng
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Basic and Clinical Research Laboratory of Major Respiratory Diseases, Central South University, Changsha, Hunan, China
| | - Yang Xiang
- Department of Physiology, Xiangya School of Basic Medicine Science, Central South University, Changsha, 410078, Hunan, China
| | - Xiangping Qu
- Department of Physiology, Xiangya School of Basic Medicine Science, Central South University, Changsha, 410078, Hunan, China
| | - Huijun Liu
- Department of Physiology, Xiangya School of Basic Medicine Science, Central South University, Changsha, 410078, Hunan, China
| | - Xiaoqun Qin
- Department of Physiology, Xiangya School of Basic Medicine Science, Central South University, Changsha, 410078, Hunan, China
| | - Chi Liu
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, Hunan, China. .,Department of Physiology, Xiangya School of Basic Medicine Science, Central South University, Changsha, 410078, Hunan, China. .,Research Center of China-Africa Infectious Diseases, Xiangya School of Medicine, Central South University, Changsha, Hunan, China.
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18
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Hosaka Y, Araya J, Fujita Y, Kadota T, Tsubouchi K, Yoshida M, Minagawa S, Hara H, Kawamoto H, Watanabe N, Ito A, Ichikawa A, Saito N, Okuda K, Watanabe J, Takekoshi D, Utsumi H, Hashimoto M, Wakui H, Ito S, Numata T, Mori S, Matsudaira H, Hirano J, Ohtsuka T, Nakayama K, Kuwano K. Chaperone-Mediated Autophagy Suppresses Apoptosis via Regulation of the Unfolded Protein Response during Chronic Obstructive Pulmonary Disease Pathogenesis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2020; 205:1256-1267. [PMID: 32699159 DOI: 10.4049/jimmunol.2000132] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 06/29/2020] [Indexed: 12/11/2022]
Abstract
Cigarette smoke (CS) induces accumulation of misfolded proteins with concomitantly enhanced unfolded protein response (UPR). Increased apoptosis linked to UPR has been demonstrated in chronic obstructive pulmonary disease (COPD) pathogenesis. Chaperone-mediated autophagy (CMA) is a type of selective autophagy for lysosomal degradation of proteins with the KFERQ peptide motif. CMA has been implicated in not only maintaining nutritional homeostasis but also adapting the cell to stressed conditions. Although recent papers have shown functional cross-talk between UPR and CMA, mechanistic implications for CMA in COPD pathogenesis, especially in association with CS-evoked UPR, remain obscure. In this study, we sought to examine the role of CMA in regulating CS-induced apoptosis linked to UPR during COPD pathogenesis using human bronchial epithelial cells (HBEC) and lung tissues. CS extract (CSE) induced LAMP2A expression and CMA activation through a Nrf2-dependent manner in HBEC. LAMP2A knockdown and the subsequent CMA inhibition enhanced UPR, including CHOP expression, and was accompanied by increased apoptosis during CSE exposure, which was reversed by LAMP2A overexpression. Immunohistochemistry showed that Nrf2 and LAMP2A levels were reduced in small airway epithelial cells in COPD compared with non-COPD lungs. Both Nrf2 and LAMP2A levels were significantly reduced in HBEC isolated from COPD, whereas LAMP2A levels in HBEC were positively correlated with pulmonary function tests. These findings suggest the existence of functional cross-talk between CMA and UPR during CSE exposure and also that impaired CMA may be causally associated with COPD pathogenesis through enhanced UPR-mediated apoptosis in epithelial cells.
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Affiliation(s)
- Yusuke Hosaka
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Jun Araya
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan;
| | - Yu Fujita
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Tsukasa Kadota
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Kazuya Tsubouchi
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Masahiro Yoshida
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Shunsuke Minagawa
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Hiromichi Hara
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Hironori Kawamoto
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Naoaki Watanabe
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Akihiko Ito
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Akihiro Ichikawa
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Nayuta Saito
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Keitaro Okuda
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Junko Watanabe
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Daisuke Takekoshi
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Hirofumi Utsumi
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Mitsuo Hashimoto
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Hiroshi Wakui
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Saburo Ito
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Takanori Numata
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
| | - Shohei Mori
- Division of Chest Diseases, Department of Surgery, Jikei University School of Medicine, Tokyo 104-8461, Japan; and
| | - Hideki Matsudaira
- Division of Chest Diseases, Department of Surgery, Jikei University School of Medicine, Tokyo 104-8461, Japan; and
| | - Jun Hirano
- Division of Chest Diseases, Department of Surgery, Jikei University School of Medicine, Tokyo 104-8461, Japan; and
| | - Takashi Ohtsuka
- Division of Chest Diseases, Department of Surgery, Jikei University School of Medicine, Tokyo 104-8461, Japan; and
| | - Katsutoshi Nakayama
- Department of Respiratory Medicine, Akita University Graduate School of Medicine, Akita 010-8543, Japan
| | - Kazuyoshi Kuwano
- Division of Respiratory Diseases, Department of Internal Medicine, Jikei University School of Medicine, Tokyo 104-8461, Japan
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19
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Xiaoqinglong Decoction Protects the Lungs of AECOPD Mice through the AMPK/mTOR Signaling Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:9865290. [PMID: 32714429 PMCID: PMC7355340 DOI: 10.1155/2020/9865290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 03/28/2020] [Accepted: 05/25/2020] [Indexed: 11/17/2022]
Abstract
Method Male C57BL/6J mice were used to establish AECOPD model by cigarette smoke and bacterial exposure. Mice were randomly divided into normal control (NC), AECOPD, XQLD, Compound C (Com C), Com C + XQLD, and Clarithromycin (CLA) groups. After treatment, the pulmonary function was evaluated by whole-body plethysmograph. The lung histopathology was observed by HE staining. The serum levels of IL-6, TNF-α, and COX-2 were detected by ELISA assay. The apoptotic index was measured by TUNEL assay, and the protein expressions of Bax, Bcl-2, Caspase-3, GRP78, and CHOP in the lung tissues were measured by western blot assay. Results XQLD treatment can improve pulmonary function (PF), ameliorate lung injury, and suppress inflammation and apoptosis of lung tissues. In addition, XQLD also markedly attenuated endoplasmic reticulum stress (ERS) and activated AMPK/mTOR pathway in the lung tissues of mice with AECOPD. However, the AMPK inhibitor Compound C decreased the protective effect of XQLD in AECOPD mice. Conclusion These findings suggested that XQLD has protective effect against inflammation and apoptosis in AECOPD mice by attenuating ER stress via AMPK/mTOR pathway.
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20
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Fan L, Li L, Yu X, Liang Z, Cai T, Chen Y, Xu Y, Hu T, Wu L, Lin L. Jianpiyifei II Granules Suppress Apoptosis of Bronchial Epithelial Cells in Chronic Obstructive Pulmonary Disease via Inhibition of the Reactive Oxygen Species-Endoplasmic Reticulum Stress-Ca 2+ Signaling Pathway. Front Pharmacol 2020; 11:581. [PMID: 32425799 PMCID: PMC7204496 DOI: 10.3389/fphar.2020.00581] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 04/15/2020] [Indexed: 12/15/2022] Open
Abstract
Jianpiyifei II granules (JPYF II), a herbal formula, are used for the treatment of chronic obstructive pulmonary disease (COPD) in Guangdong Provincial Hospital of Chinese Medicine. The protective effects of JPYF II against bronchial epithelial cell apoptosis in mice exposed to cigarette smoke (CS) and apoptosis of human bronchial epithelial cell lines (BEAS-2B and 16-HBE) stimulated with cigarette smoke extract (CSE) were investigated. Mice were exposed to CS generated from four cigarettes/day for 30 days and administered a dose of JPYF II (0.75, 1.5, and 3 g/kg/d) from the 3rd week of CS exposure. In mice exposed to CS, JPYF II significantly inhibited CS-induced apoptosis and overexpression of endoplasmic reticulum (ER) stress-related markers in bronchial epithelial cells of the lung tissues. In CSE-stimulated BEAS-2B and 16-HBE cells, JPYF II attenuated apoptosis and cell cycle arrest in the G0/G1 phase. Mechanistically, CSE initially induced intracellular reactive oxygen species (ROS) production, which then triggered ER stress, leading to the release of Ca2+ from ER inositol trisphosphate receptor (IP3R)-mediated stores and finally cell death. Treatment with JPYF II resulted in a significant reduction in CSE-induced apoptosis through interruption of the ROS-ER stress-Ca2+ signaling pathway. Therefore, the results of this study have revealed the underlying mechanism of action of JPYF II in the treatment of COPD.
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Affiliation(s)
- Long Fan
- Guangdong Provincial Key Laboratory of Research on Emergency in TCM, the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Leng Li
- Guangdong Provincial Key Laboratory of Research on Emergency in TCM, the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xuhua Yu
- Guangdong Provincial Key Laboratory of Research on Emergency in TCM, the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ziyao Liang
- Guangdong Provincial Key Laboratory of Research on Emergency in TCM, the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Tiantian Cai
- Guangdong Provincial Key Laboratory of Research on Emergency in TCM, the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuanbin Chen
- Guangdong Provincial Key Laboratory of Research on Emergency in TCM, the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yinji Xu
- Guangdong Provincial Key Laboratory of Research on Emergency in TCM, the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Tao Hu
- Guangdong Provincial Key Laboratory of Research on Emergency in TCM, the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lei Wu
- Guangdong Provincial Key Laboratory of Research on Emergency in TCM, the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lin Lin
- Guangdong Provincial Key Laboratory of Research on Emergency in TCM, the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
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21
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Dang X, He B, Ning Q, Liu Y, Guo J, Niu G, Chen M. Alantolactone suppresses inflammation, apoptosis and oxidative stress in cigarette smoke-induced human bronchial epithelial cells through activation of Nrf2/HO-1 and inhibition of the NF-κB pathways. Respir Res 2020; 21:95. [PMID: 32321531 PMCID: PMC7178609 DOI: 10.1186/s12931-020-01358-4] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/12/2020] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND It is well established that airway remodeling and inflammation are characteristics for chronic obstructive pulmonary disease (COPD). Moreover, cigarette smoke extract (CSE) promots inflammation, apoptosis and oxidative stress in COPD. And, there is evidence suggested that alantolactone (ALT), a sesquiterpene lactone isolated from Inula helenium, plays an adverse role in inflammation, apoptosis and oxidative stress. However, few studies have investigated the function and mechanism of ALT treatment on the COPD pathological process. METHODS The levels of IL-1 β, TNF-α, IL-6 and IFN-γ were examined by ELISA. Cells' apoptosis and caspase-3 activity were detected by Cell Death Detection PLUS enzyme-linked immunosorbent assay and caspase-Glo 3/7 Assay, respectively. The content of malondialdehyde (MDA) and superoxide dismutase (SOD) were determined by using MDA and SOD assay kits. Reactive oxygen species (ROS) generation was measured by DCFH-DA assay. Protein expression was assayed by Western blot. RESULTS In the present study, we aimed to observe the protective effects of ALT against inflammation, apoptosis and oxidative stress in human bronchial epithelial Beas-2B and NHBE cells. Our results showed that different doses of CSE exposure induced Beas-2B and NHBE cell inflammatory cytokines IL-1 β, TNF-α, IL-6 and IFN-γ expression, cell apoptosis, caspase-3 activity and mediated oxidative stress markers MDA, ROS and SOD levels, while ALT treatment counteracted the effects of CSE. Further studies suggested that ALT attenuated NF-κB pathway activation. ALT also activated the Nrf2/HO-1 signal pathway through promoting Nrf2 nuclear aggregation and downstream HO-1 protein expression. HO-1 inhibitor tin protoporphyrin IX (SnPP IX) reversed the effects of ALT on Beas-2B and NHBE cell inflammation, apoptosis and oxidative stress. CONCLUSIONS The above results collectively suggested that ALT suppressed CSE-induced inflammation, apoptosis and oxidative stress by modulating the NF-ĸB and Nrf2/ HO-1 axis.
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Affiliation(s)
- Xiaomin Dang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta west road, Xi'an, 710061, China.
| | - Beibei He
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta west road, Xi'an, 710061, China
| | - Qian Ning
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta west road, Xi'an, 710061, China
| | - Ya Liu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta west road, Xi'an, 710061, China
| | - Jianxin Guo
- Department of Medical Imaging, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Gang Niu
- Department of Medical Imaging, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China
| | - Mingwei Chen
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta west road, Xi'an, 710061, China
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22
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Li J, Zong D, Chen Y, Chen P. Anti-apoptotic effect of the Shh signaling pathway in cigarette smoke extract induced MLE 12 apoptosis. Tob Induc Dis 2019; 17:49. [PMID: 31516492 PMCID: PMC6662799 DOI: 10.18332/tid/109753] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 05/07/2019] [Accepted: 05/31/2019] [Indexed: 12/29/2022] Open
Abstract
INTRODUCTION Many studies have shown that COPD is associated with apoptosis of bronchial or alveolar epithelial cells. Alveolar type II epithelial cells (AECII) play an important role in the pathogenetic process. Cigarette smoke extract (CSE) can induce apoptosis of AECII. The Sonic hedgehog (Shh) pathway is involved in many adult lung diseases. We aimed to verify the anti-apoptotic effect of Shh in the AECII apoptosis induced by CSE. METHODS Mouse lung epithelial type II cells, MLE 12, were treated by 5% CSE for 24 hours. Apoptosis was measured using flow cytometry and expression of the anti-apoptotic factor BCL-2. The role of the hedgehog pathway in cell apoptosis was assessed by real-time RT-PCT and western blotting to measure the expression of Sonic hedgehog, Patched 1, and Gli1. Recombinant mouse Sonic hedgehog was used to overexpress the Shh pathway. RESULTS CSE could induce MLE 12 apoptosis. Sonic hedgehog, Patched 1 and the Gli1 were decreased in the CSE induced MLE 12 apoptosis. Overexpression Shh could partially reverse the CSE induced apoptosis. CONCLUSIONS Activation of the Shh pathway may relieve the CSE induced MLE 12 apoptosis.
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Affiliation(s)
- Jinhua Li
- Department of Respiratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, China.,Research Unit of Respiratory Disease, Central South University, Changsha, China.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, China
| | - Dandan Zong
- Department of Respiratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, China.,Research Unit of Respiratory Disease, Central South University, Changsha, China.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, China
| | - Yan Chen
- Department of Respiratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, China.,Research Unit of Respiratory Disease, Central South University, Changsha, China.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, China
| | - Ping Chen
- Department of Respiratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, China.,Research Unit of Respiratory Disease, Central South University, Changsha, China.,Diagnosis and Treatment Center of Respiratory Disease, Central South University, Changsha, China
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23
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Wunnapuk K, Pothirat C, Manokeaw S, Phetsuk N, Chaiwong W, Phuackchantuck R, Prapamontol T. PM 10-related DNA damage, cytokinetic defects, and cell death in COPD patients from Chiang Dao district, Chiang Mai, Thailand. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:25326-25340. [PMID: 31254199 DOI: 10.1007/s11356-019-05641-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 05/29/2019] [Indexed: 06/09/2023]
Abstract
Exposure to PM10 generated by biomass burning may reduce lung function and induce cytogenetic effects, especially in chronic obstructive pulmonary disease patients. This study investigated the frequency of DNA-damaged cells, cells with cytokinetic defect, and different types of cell death using a buccal micronucleus cytome assay. The correlations between each biomarker and lung function were investigated. The changes in these biomarkers associated with high pollutant levels (PM10 > 50 μg/m3) and low pollutant levels (PM10 < 50 μg/m3) were evaluated to explore whether PM10 exposure induced genotoxic damages and cytokinetic defects in COPD patients when the daily average PM10 concentration reached above 50 μg/m3. Fifty-eight COPD patients and 26 healthy subjects living in Chiang Dao district, Chiang Mai, Thailand, were recruited in this study. The results revealed that buccal cells with micronuclei (high vs low 1.09 ± 1.95 vs 0.29 ± 0.64 in COPD patients) and binucleated cells (high vs low 11.43 ± 18.68 vs 1.60 ± 1.31 and 7.77 ± 12.76 vs 1.00 ± 1.17 in COPD and healthy subjects, respectively) observed during the high pollutant period were more frequent than in the low pollutant period. Moreover, exposure to PM10 increased the risk of micronucleus induction in COPD patients 295.23-fold.
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Affiliation(s)
- Klintean Wunnapuk
- Division of Toxicology, Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Chaicharn Pothirat
- Division of Pulmonary, Critical Care and Allergy, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chang Wat, Chiang Mai, 50200, Thailand.
| | - Siriphorn Manokeaw
- Division of Toxicology, Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Nittaya Phetsuk
- Division of Pulmonary, Critical Care and Allergy, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chang Wat, Chiang Mai, 50200, Thailand
| | - Warawut Chaiwong
- Division of Pulmonary, Critical Care and Allergy, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chang Wat, Chiang Mai, 50200, Thailand
| | - Rochana Phuackchantuck
- Research Administration Section, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Tippawan Prapamontol
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
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24
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Impaired non-homologous end joining in human primary alveolar type II cells in emphysema. Sci Rep 2019; 9:920. [PMID: 30696938 PMCID: PMC6351635 DOI: 10.1038/s41598-018-37000-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 11/27/2018] [Indexed: 12/13/2022] Open
Abstract
Emphysema is characterized by alveolar wall destruction induced mainly by cigarette smoke. Oxidative damage of DNA may contribute to the pathophysiology of this disease. We studied the impairment of the non-homologous end joining (NHEJ) repair pathway and DNA damage in alveolar type II (ATII) cells and emphysema development. We isolated primary ATII cells from control smokers, nonsmokers, and patients with emphysema to determine DNA damage and repair. We found higher reactive oxygen species generation and DNA damage in ATII cells obtained from individuals with this disease in comparison with controls. We also observed low phosphorylation of H2AX, which activates DSBs repair signaling, in emphysema. Our results indicate the impairement of NHEJ, as detected by low XLF expression. We also analyzed the role of DJ-1, which has a cytoprotective activity. We detected DJ-1 and XLF interaction in ATII cells in emphysema, which suggests the impairment of their function. Moreover, we found that DJ-1 KO mice are more susceptible to DNA damage induced by cigarette smoke. Our results suggest that oxidative DNA damage and ineffective the DSBs repair via the impaired NHEJ may contribute to ATII cell death in emphysema.
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25
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He B, Zhang W, Qiao J, Peng Z, Chai X. Melatonin protects against COPD by attenuating apoptosis and endoplasmic reticulum stress via upregulating SIRT1 expression in rats. Can J Physiol Pharmacol 2019; 97:386-391. [PMID: 30673309 DOI: 10.1139/cjpp-2018-0529] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The apoptosis of bronchial and alveolar epithelial cells plays a key role in chronic obstructive pulmonary disease (COPD). The endoplasmic reticulum (ER) stress induced by cigarette smoke contributes to apoptosis. Previous studies demonstrated that melatonin prevented the development of COPD. In addition, silent information regulator 1 (SIRT1) had a protective effect against COPD. However, it remains unclear whether SIRT1 is involved in the protection of melatonin against COPD. In this study, 32 male Wistar rats were randomly assigned to 4 groups: Control, COPD, COPD + Mel, and COPD + Mel + EX527. Rats were challenged with cigarette smoke and lipopolysaccharide with or without melatonin or EX527 (a selective inhibitor of SIRT1). The lung histopathology, apoptotic index, as well as the protein expressions of cleaved caspase-3, SIRT1, C/EBP homologous protein, and caspase-12 in the lung tissues were measured. These results demonstrated that melatonin attenuated apoptosis and ER stress in the lung tissues of rats with COPD. In addition, melatonin increased SIRT1 expression in lung tissues of rats with COPD, while inhibition of SIRT1 by EX527 upregulated ER stress and abolished the protective effect of melatonin against apoptosis. In conclusion, these findings suggested that melatonin protected against COPD by attenuating apoptosis and ER stress via upregulating SIRT1 expression in rats.
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Affiliation(s)
- Baimei He
- a Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, 410008, China.,b Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China.,c National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Wenxuan Zhang
- d Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, 410011, China.,e Emergency Medicine and Difficult Diseases Institute, Central South University, Changsha, 410011, China
| | - Jianfeng Qiao
- f Clinical Nursing Teaching and Research Section, Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Zhenyu Peng
- d Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, 410011, China.,e Emergency Medicine and Difficult Diseases Institute, Central South University, Changsha, 410011, China
| | - Xiangping Chai
- d Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, 410011, China.,e Emergency Medicine and Difficult Diseases Institute, Central South University, Changsha, 410011, China
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26
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Roscioli E, Hamon R, Lester SE, Jersmann HPA, Reynolds PN, Hodge S. Airway epithelial cells exposed to wildfire smoke extract exhibit dysregulated autophagy and barrier dysfunction consistent with COPD. Respir Res 2018; 19:234. [PMID: 30486816 PMCID: PMC6263553 DOI: 10.1186/s12931-018-0945-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 11/20/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Individuals with respiratory disease are being increasingly exposed to wildfire smoke as populations encroach further into forested regions and climate change continues to bring higher temperatures with lower rainfall. Frequent exposures have significant potential to accelerate conditions such as chronic obstructive pulmonary disease (COPD) which is characterised by an exaggerated inflammatory response to environmental stimuli. Here we employ models of human airway epithelium exposed to wildfire smoke-extract (WFSE) to examine modulation in airway epithelial cell (AEC) survival, fragility and barrier function. METHODS Submerged cultures of small airway epithelial cells (SAEC) and differentiated air-liquid interface (ALI) cultures of primary bronchial AEC (bAEC) were treated for 1-24 h with 1-10% WFSE generated from plant species found in the Australian bushland. Autophagy (LC3-II and Sequestosome), apoptosis (Poly-(ADP)-Ribose Polymerase (PARP) cleavage) and tight junction proteins were measured using western blot. Barrier function was assessed via permeability of fluorescein tracers and measuring trans-epithelial electrical resistance. The production of IL-6 was assessed using ELISA. RESULTS Primary epithelial models exposed to WFSE exhibited a significant blockade in autophagy as evidenced by an increase in LC3-II coupled with a concomitant elevation in Sequestosome abundance. These exposures also induced significant PARP cleavage indicative of apoptotic changes. ALI cultures of bAEC treated with 5% WFSE demonstrated barrier dysfunction with significant increases in paracellular molecular permeability and ionic conductance, and a reduction in the abundance of the tight junction proteins ZO-1 and Claudin-1. These cultures also exhibited increased IL-6 secretion consistent with the aberrant and pro-inflammatory repair response observed in the COPD airways. Further, blocks in autophagy and barrier disruption were significantly elevated in response to WFSE in comparison to similar exposures with cigarette smoke-extract. CONCLUSION WFSE inhibits autophagic flux and induces barrier dysfunction in the airway epithelium. As autophagy is a central regulator of cellular repair, viability, and inflammation, targeting the block in autophagic flux may ameliorate the consequences of wildfire smoke-exposure for individuals with pre-existing respiratory conditions.
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Affiliation(s)
- Eugene Roscioli
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, South Australia, Australia. .,Deptartment of Medicine, The University of Adelaide, Adelaide, South Australia, Australia. .,Adelaide Health and Medical Science Building, Corner of North Terrace and George St, Adelaide, South Australia, 5005, Australia.
| | - Rhys Hamon
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, South Australia, Australia.,Deptartment of Medicine, The University of Adelaide, Adelaide, South Australia, Australia
| | - Susan E Lester
- Deptartment of Medicine, The University of Adelaide, Adelaide, South Australia, Australia.,Department of Rheumatology, The Queen Elizabeth Hospital, Adelaide, South Australia, Australia
| | - Hubertus P A Jersmann
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, South Australia, Australia.,Deptartment of Medicine, The University of Adelaide, Adelaide, South Australia, Australia
| | - Paul N Reynolds
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, South Australia, Australia.,Deptartment of Medicine, The University of Adelaide, Adelaide, South Australia, Australia
| | - Sandra Hodge
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, South Australia, Australia.,Deptartment of Medicine, The University of Adelaide, Adelaide, South Australia, Australia
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27
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Sun Y, An N, Li J, Xia J, Tian Y, Zhao P, Liu X, Huang H, Gao J, Zhang X. miRNA-206 regulates human pulmonary microvascular endothelial cell apoptosis via targeting in chronic obstructive pulmonary disease. J Cell Biochem 2018; 120:6223-6236. [PMID: 30335896 DOI: 10.1002/jcb.27910] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 09/25/2018] [Indexed: 12/23/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a leading cause of death due to tis high morbidity and mortality. microRNAs have emerged as new biomarkers for the prognosis and diagnosis of patients with COPD. In this study, we aimed to investigate the expression of microRNA-206 (miR-206) in lung tissues from COPD patients and to explore the regulatory role of miR-206 in the human pulmonary microvascular endothelial cells (HPMECs). Our results showed that cigarette smoke extract (CSE) promoted cell apoptosis, increased caspase-3 activity, and upregulated the expression of miR-206 in HPMECs, which was significantly reversed by the miR-206 knockdown. Transfection with miR-206 mimics led to cell apoptosis and was closely related to changes in the protein expression levels of caspase-3, caspase-9, and Bcl-2 in HPMECs. Further bioinformatics prediction analysis revealed that the 3'-untranslated region (3'UTR) of Notch3 and vascular endothelial growth factor-A (VEGFA) harbored miR-206-binding sites, and overexpression of miR-206 repressed the luciferase activity of the vectors containing Notch3 and VEGFA 3'UTR. Overexpression of either Notch3 or VEGFA attenuated miR-206-induced cell apoptosis in HPMECs. More importantly, miR-206 expression was upregulated in the lung tissues from COPD patients and was positively corrected with forced expiratory volume 1% predicted in COPD patients, while Notch3 and VEGFA mRNA levels were downregulated and were negatively correlated with the expression level of miR-206 in the lung tissues from COPD patients. In conclusion, our results showed that miR-206 was upregulated in COPD patients and CSE-treated HPMECs, promoted cell apoptosis via directly targeting Notch3 and VEGFA in HPMECs.
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Affiliation(s)
- Ying Sun
- Basic Medicine College, Henan University of Chinese Medicine, Zhengzhou, China.,Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, China.,Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, China
| | - Na An
- Department of Medicine, Henan University of Chinese Medicine, Zhengzhou, China
| | - Jiansheng Li
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, China.,Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, China
| | - Jinchan Xia
- Basic Medicine College, Henan University of Chinese Medicine, Zhengzhou, China.,Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, China.,Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, China
| | - Yange Tian
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, China.,Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, China
| | - Peng Zhao
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, China.,Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, China
| | - Xuefang Liu
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, China.,Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, China
| | - Haiying Huang
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, Zhengzhou, China.,Collaborative Innovation Center for Respiratory Disease Diagnosis and Treatment & Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, China
| | - Jianfeng Gao
- Basic Medicine College, Henan University of Chinese Medicine, Zhengzhou, China
| | - Xiaoli Zhang
- Basic Medicine College, Henan University of Chinese Medicine, Zhengzhou, China
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Proteases and Their Inhibitors in Chronic Obstructive Pulmonary Disease. J Clin Med 2018; 7:jcm7090244. [PMID: 30154365 PMCID: PMC6162857 DOI: 10.3390/jcm7090244] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 08/24/2018] [Accepted: 08/25/2018] [Indexed: 12/21/2022] Open
Abstract
In the context of respiratory disease, chronic obstructive pulmonary disease (COPD) is the leading cause of mortality worldwide. Despite much development in the area of drug development, currently there are no effective medicines available for the treatment of this disease. An imbalance in the protease: Antiprotease ratio in the COPD lung remains an important aspect of COPD pathophysiology and several studies have shown the efficacy of antiprotease therapy in both in vitro and in vivo COPD models. However more in-depth studies will be required to validate the efficacy of lead drug molecules targeting these proteases. This review discusses the current status of protease-directed drugs used for treating COPD and explores the future prospects of utilizing the potential of antiprotease-based therapeutics as a treatment for this disease.
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29
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Tsai MJ, Chang WA, Jian SF, Chang KF, Sheu CC, Kuo PL. Possible mechanisms mediating apoptosis of bronchial epithelial cells in chronic obstructive pulmonary disease - A next-generation sequencing approach. Pathol Res Pract 2018; 214:1489-1496. [PMID: 30115538 DOI: 10.1016/j.prp.2018.08.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 07/24/2018] [Accepted: 08/06/2018] [Indexed: 12/16/2022]
Abstract
PURPOSE Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory airway disease characterized by persistent airflow limitation. Apoptosis of pulmonary structural cells contributes to pulmonary destruction and dysfunction. This study aimed to explore the possible mechanisms underlying decreased cell proliferation and increased apoptosis of bronchial epithelial cells of COPD. MATERIALS AND METHODS The expression profiles of mRNAs and microRNAs in bronchial epithelial cells from a COPD patient and a normal subject were identified using next-generation sequencing (NGS) and analyzed using bioinformatic tools. RESULTS We identified 233 significantly upregulated and 204 significantly downregulated genes in COPD bronchial epithelial cells. The PI3K-Akt pathway was one of the most important dysregulated pathways in bronchial epithelial cells. We further identified that 3 genes involved in the PI3K-Akt signaling pathway, including IL6, F2R, and FGFR3, might be associated with inhibition of cell proliferation in bronchial epithelial cells, while 5 genes involved in the PI3K-Akt signaling pathway, including TLR4, IL6, F2R, FGFR3, and FGFR1, might be associated with apoptosis of bronchial epithelial cells. FGFR1 was also a predicted target for some up-regulated miRNAs in COPD bronchial epithelial cells, including hsa-miR-195-5p, hsa-miR-424-5p, and hsa-miR-6724-5p. CONCLUSION Our findings suggest PI3K-Akt signaling pathway plays an important role in COPD. We observed altered expression of apoptosis and cell proliferation-related genes that might contribute to the pathogenesis of COPD.
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Affiliation(s)
- Ming-Ju Tsai
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, No.100, Shih-Chuan 1st Rd., Kaohsiung, 807, Taiwan; Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No. 100, Tz-You 1st Rd., Kaohsiung, 807, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, No.100, Shih-Chuan 1st Rd., Kaohsiung, 807, Taiwan; Department of Respiratory Therapy, School of Medicine, College of Medicine, Kaohsiung Medical University, No.100, Shih-Chuan 1st Rd., Kaohsiung, 807, Taiwan.
| | - Wei-An Chang
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, No.100, Shih-Chuan 1st Rd., Kaohsiung, 807, Taiwan; Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No. 100, Tz-You 1st Rd., Kaohsiung, 807, Taiwan.
| | - Shu-Fang Jian
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, No.100, Shih-Chuan 1st Rd., Kaohsiung, 807, Taiwan.
| | | | - Chau-Chyun Sheu
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, No.100, Shih-Chuan 1st Rd., Kaohsiung, 807, Taiwan; Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No. 100, Tz-You 1st Rd., Kaohsiung, 807, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, No.100, Shih-Chuan 1st Rd., Kaohsiung, 807, Taiwan; Department of Respiratory Therapy, School of Medicine, College of Medicine, Kaohsiung Medical University, No.100, Shih-Chuan 1st Rd., Kaohsiung, 807, Taiwan.
| | - Po-Lin Kuo
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, No.100, Shih-Chuan 1st Rd., Kaohsiung, 807, Taiwan.
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30
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Pandey KC, De S, Mishra PK. Role of Proteases in Chronic Obstructive Pulmonary Disease. Front Pharmacol 2017; 8:512. [PMID: 28848433 PMCID: PMC5550664 DOI: 10.3389/fphar.2017.00512] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 07/21/2017] [Indexed: 02/02/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is generally associated with progressive destruction of airways and lung parenchyma. Various factors play an important role in the development and progression of COPD, like imbalance of proteases, environmental and genetic factors and oxidative stress. This review is specifically focused on the role of proteases and their imbalance in COPD. There are three classes (serine, mettalo, and cysteine) of proteases involved in COPD. In serine proteases, neutrophil elastase, cathepsin G, and proteinase-3 are involved in destruction of alveolar tissue. Matrix-mettaloproteinase-9, 12, 13, plays an influential role in severity of COPD. Among cysteine proteases, caspase-3, caspases-8 and caspase-9 play an important role in controlling apoptosis. These proteases activities can be regulated by inhibitors like α-1-antitrypsin, neutrophil elastase inhibitor, and leukocyte protease inhibitor. Studies suggest that neutrophil elastase may be a therapeutic target for COPD, and specific inhibitor against this enzyme has potential role to control the disease. Current study suggests that Dipeptidyl Peptidase IV is a potential marker for COPD. Since the expression of proteases and its inhibitors play an important role in COPD pathogenesis, therefore, it is worth investigating the role of proteases and their regulation. Understanding the biochemical basis of COPD pathogenesis using advanced tools in protease biochemistry and aiming toward translational research from bench-to-bedside will have great impact to deal with this health problem.
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Affiliation(s)
- Kailash C Pandey
- Department of Biochemistry, National Institute for Research in Environmental Health (ICMR)Bhopal, India
| | - Sajal De
- Department of Pulmonary Medicine, National Institute for Research in Environmental Health (ICMR)Bhopal, India
| | - Pradyumna K Mishra
- Department of Molecular Biology, National Institute for Research in Environmental Health (ICMR)Bhopal, India
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31
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Human mesenchymal stromal cells exert HGF dependent cytoprotective effects in a human relevant pre-clinical model of COPD. Sci Rep 2016; 6:38207. [PMID: 27922052 PMCID: PMC5138599 DOI: 10.1038/srep38207] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 11/07/2016] [Indexed: 12/13/2022] Open
Abstract
Bone-marrow derived mesenchymal stromal cells (MSCs) have potent immunomodulatory and tissue reparative properties, which may be beneficial in the treatment of inflammatory diseases such as COPD. This study examined the mechanisms by which human MSCs protect against elastase induced emphysema. Using a novel human relevant pre-clinical model of emphysema the efficacy of human MSC therapy and optimal cell dose were investigated. Protective effects were examined in the lung through histological examination. Further in vivo experiments examined the reparative abilities of MSCs after tissue damage was established and the role played by soluble factors secreted by MSCs. The mechanism of MSC action was determined in using shRNA gene knockdown. Human MSC therapy and MSC conditioned media exerted significant cytoprotective effects when administered early at the onset of the disease. These protective effects were due to significant anti-inflammatory, anti-fibrotic and anti-apoptotic mechanisms, mediated in part through MSC production of hepatocyte growth factor (HGF). When MSC administration was delayed, significant protection of the lung architecture was observed but this was less extensive. MSC cell therapy was more effective than MSC conditioned medium in this emphysema model.
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