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He AWJ, Ngai SPC, Cheung KK, Lau BWM, Sánchez-Vidaña DI, Pang MYC. Impacts of Cigarette Smoke (CS) on Muscle Derangement in Rodents-A Systematic Review. TOXICS 2022; 10:262. [PMID: 35622675 PMCID: PMC9146307 DOI: 10.3390/toxics10050262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/10/2022] [Accepted: 05/16/2022] [Indexed: 02/04/2023]
Abstract
Cigarette smoke (CS) is the major risk factor for chronic obstructive pulmonary disease (COPD) and can induce systemic manifestations, such as skeletal muscle derangement. However, inconsistent findings of muscle derangement were reported in previous studies. The aim of the present study was to consolidate the available evidence and assess the impact of CS on muscle derangement in rodents. A comprehensive literature search of five electronic databases identified ten articles for final analysis. Results showed that the diaphragm, rectus femoris, soleus, and gastrocnemius exhibited significant oxidative to glycolytic fiber conversions upon CS exposure. In contrast, the extensor digitorum longus (EDL), plantaris, and tibialis did not exhibit a similar fiber-type conversion after CS exposure. Hindlimb muscles, including the quadriceps, soleus, gastrocnemius, and EDL, showed significant reductions in the CSA of the muscle fibers in the CS group when compared to the control group. Changes in inflammatory cytokines, exercise capacity, and functional outcomes induced by CS have also been evaluated. CS could induce a shift from oxidative fibers to glycolytic fibers in high-oxidative muscles such as the diaphragm, rectus femoris, and soleus, and cause muscle atrophy, as reflected by a reduction in the CSA of hindlimb muscles such as the quadriceps, soleus, gastrocnemius, and EDL.
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Affiliation(s)
| | - Shirley P. C. Ngai
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China; (A.W.J.H.); (D.-I.S.-V.); (M.Y.C.P.)
| | - Kwok Kuen Cheung
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China; (A.W.J.H.); (D.-I.S.-V.); (M.Y.C.P.)
| | - Benson W. M. Lau
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China; (A.W.J.H.); (D.-I.S.-V.); (M.Y.C.P.)
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Xiong J, Le Y, Rao Y, Zhou L, Hu Y, Guo S, Sun Y. RANKL Mediates Muscle Atrophy and Dysfunction in a Cigarette Smoke-induced Model of Chronic Obstructive Pulmonary Disease. Am J Respir Cell Mol Biol 2021; 64:617-628. [PMID: 33689672 DOI: 10.1165/rcmb.2020-0449oc] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Skeletal muscle dysfunction is one of the important comorbidities of chronic obstructive pulmonary disease (COPD); however, the underlying mechanisms remain largely unknown. RANKL (receptor activator of nuclear factor κB ligand), a key mediator in osteoclast differentiation, was also found to play a role in skeletal muscle pathogenesis. Whether RANKL is involved in COPD-related skeletal muscle dysfunction is as-of-yet unknown. We examined the expression of RANKL/RANK in skeletal muscles from mice exposed to cigarette smoke (CS) for 24 weeks. Grip strength and exercise capacity as well as muscular morphology were evaluated in CS-exposed mice with or without anti-RANKL treatment. The expressions of protein synthesis- or muscle growth-related molecules (IGF-1, myogenin, and myostatin), muscle-specific ubiquitin E3 ligases (MuRF1 and atrogin-1), and the NF-κb inflammatory pathway were also evaluated in skeletal muscles. The effect of CS extract on RANKL/RANK expression and that of exogenous RANKL on the ubiquitin-proteasome pathway in C2C12 myotubes were investigated in vitro. Long-term CS exposure induced skeletal muscle dysfunction and atrophy together with upregulation of RANKL/RANK expression in a well-established mouse model of COPD. RANKL neutralization prevented skeletal muscle dysfunction and atrophy. RANKL inhibition decreased expressions of myostatin and MuRF1/Atrogin1 and suppressed the NF-κb pathway in skeletal muscles from CS-exposed mice. In in vitro experiments with C2C12 myotubes, CS extract induced expression of RANKL/RANK, and exogenous RANKL induced activation of the ubiquitin-proteasome pathway and NF-κb pathway via RANK. Our results revealed an important role of the RANKL/RANK pathway in muscle atrophy induced by CS exposure, suggesting that RANKL may be a potential therapeutic target in COPD-related skeletal muscle dysfunction.
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Affiliation(s)
- Jing Xiong
- Department of Respiratory and Critical Care Medicine, Peking University Third Hospital, Beijing, China; and
| | - Yanqing Le
- Department of Respiratory and Critical Care Medicine, Peking University Third Hospital, Beijing, China; and
| | - Yafei Rao
- Department of Respiratory and Critical Care Medicine, Peking University Third Hospital, Beijing, China; and
| | - Lu Zhou
- Department of Respiratory and Critical Care Medicine, Peking University Third Hospital, Beijing, China; and
| | - Yuhan Hu
- Department of Respiratory Medicine, and Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Suliang Guo
- Department of Respiratory Medicine, and Medical Research Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yongchang Sun
- Department of Respiratory and Critical Care Medicine, Peking University Third Hospital, Beijing, China; and
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Nakamura R, Doyle C, Bing R, Johnson AM, Branski RC. Preliminary Investigation of In vitro, Bidirectional Vocal Fold Muscle-Mucosa Interactions. Ann Otol Rhinol Laryngol 2021; 131:512-519. [PMID: 34192972 DOI: 10.1177/00034894211028497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Oversimplified clinical dogma suggests that laryngeal diseases fall into two broad, mutually exclusive diagnostic categories-mucosal injury or neuromuscular/functional disorders. Extensive investigation in the lower airway as well as other organ systems suggest complex interactions between tissue types underlying both tissue health and pathological states. To date, no such relationship has been described in the vocal folds, likely the most bioactive organ in the body. We hypothesize interactions between the vocal fold muscle and mucosa likely contribute to aberrant phonatory physiology and warrant further investigation to ultimately develop novel therapeutic strategies. METHODS Primary culture of myoblasts from rat thyroarytenoid muscle and fibroblasts from the vocal fold mucosa were established. Co-culture and conditioned media experiments were performed to established bidirectional interactions between cell types. Transforming Growth Factor (TGF)-β was employed to stimulate a fibrotic phenotype in culture. In addition to quantitative PCR, standard migration and proliferation assays were performed as well as immunocytochemistry. RESULTS Bidirectional cell-cell interactions were observed. Without TGF-β stimulation, myoblast conditioned media inhibited fibroblast migration, but enhanced proliferation. Conversely, fibroblast conditioned media increased both myoblast proliferation and migration. Myoblast conditioned media decreased TGF-β-mediated gene expression and of particular interest, ACTA2 mRNA expression. In both co-culture and in response to fibroblast conditioned media, myosin heavy chain (Myh2) mRNA expression decreased in myoblasts. CONCLUSIONS These data are the first to describe interactions between cell types within the vocal fold. The implications for these interactions in vivo warrant further investigation to develop and refine optimal treatment strategies.
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Affiliation(s)
- Rysouke Nakamura
- Rehabilitation Medicine, NYU Grossman School of Medicine, New York, NY, USA
| | - Carina Doyle
- Rehabilitation Medicine, NYU Grossman School of Medicine, New York, NY, USA
| | - Renjie Bing
- Rehabilitation Medicine, NYU Grossman School of Medicine, New York, NY, USA
| | - Aaron M Johnson
- Otolaryngology-Head and Neck Surgery, NYU Grossman School of Medicine, New York, NY, USA
| | - Ryan C Branski
- Rehabilitation Medicine, NYU Grossman School of Medicine, New York, NY, USA.,Otolaryngology-Head and Neck Surgery, NYU Grossman School of Medicine, New York, NY, USA
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Sadler KJ, Gatta PAD, Naim T, Wallace MA, Lee A, Zaw T, Lindsay A, Chung RS, Bello L, Pegoraro E, Lamon S, Lynch GS, Russell AP. Striated muscle activator of Rho signalling (STARS) overexpression in the mdx mouse enhances muscle functional capacity and regulates the actin cytoskeleton and oxidative phosphorylation pathways. Exp Physiol 2021; 106:1597-1611. [PMID: 33963617 DOI: 10.1113/ep089253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 05/04/2021] [Indexed: 11/08/2022]
Abstract
NEW FINDINGS What is the central question of this study? Striated muscle activator of rho signalling (STARS) is an actin-binding protein that regulates transcriptional pathways controlling muscle function, growth and myogenesis, processes that are impaired in dystrophic muscle: what is the regulation of the STARS pathway in Duchenne muscular dystrophy (DMD)? What is the main finding and its importance? Members of the STARS signalling pathway are reduced in the quadriceps of patients with DMD and in mouse models of muscular dystrophy. Overexpression of STARS in the dystrophic deficient mdx mouse model increased maximal isometric specific force and upregulated members of the actin cytoskeleton and oxidative phosphorylation pathways. Regulating STARS may be a therapeutic approach to enhance muscle health. ABSTRACT Duchenne muscular dystrophy (DMD) is characterised by impaired cytoskeleton organisation, cytosolic calcium handling, oxidative stress and mitochondrial dysfunction. This results in progressive muscle damage, wasting and weakness and premature death. The striated muscle activator of rho signalling (STARS) is an actin-binding protein that activates the myocardin-related transcription factor-A (MRTFA)/serum response factor (SRF) transcriptional pathway, a pathway regulating cytoskeletal structure and muscle function, growth and repair. We investigated the regulation of the STARS pathway in the quadriceps muscle from patients with DMD and in the tibialis anterior (TA) muscle from the dystrophin-deficient mdx and dko (utrophin and dystrophin null) mice. Protein levels of STARS, SRF and RHOA were reduced in patients with DMD. STARS, SRF and MRTFA mRNA levels were also decreased in DMD muscle, while Stars mRNA levels were decreased in the mdx mice and Srf and Mrtfa mRNAs decreased in the dko mice. Overexpressing human STARS (hSTARS) in the TA muscles of mdx mice increased maximal isometric specific force by 13% (P < 0.05). This was not associated with changes in muscle mass, fibre cross-sectional area, fibre type, centralised nuclei or collagen deposition. Proteomics screening followed by pathway enrichment analysis identified that hSTARS overexpression resulted in 31 upregulated and 22 downregulated proteins belonging to the actin cytoskeleton and oxidative phosphorylation pathways. These pathways are impaired in dystrophic muscle and regulate processes that are vital for muscle function. Increasing the STARS protein in dystrophic muscle improves muscle force production, potentially via synergistic regulation of cytoskeletal structure and energy production.
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Affiliation(s)
- Kate J Sadler
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Paul A Della Gatta
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Timur Naim
- Department of Physiology, Centre for Muscle Research, University of Melbourne, Parkville, Victoria, Australia
| | - Marita A Wallace
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Albert Lee
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Centre for Motor Neuron Disease Research, Macquarie University, Sydney, New South Wales, Australia
| | - Thiri Zaw
- Australian Proteome Analysis Facility, Macquarie University, Sydney, New South Wales, Australia
| | - Angus Lindsay
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Roger S Chung
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Centre for Motor Neuron Disease Research, Macquarie University, Sydney, New South Wales, Australia
| | - Luca Bello
- Department of Neurosciences, ERN Neuromuscular Center, University of Padua, Padua, Italy
| | - Elena Pegoraro
- Department of Neurosciences, ERN Neuromuscular Center, University of Padua, Padua, Italy
| | - Séverine Lamon
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
| | - Gordon S Lynch
- Department of Physiology, Centre for Muscle Research, University of Melbourne, Parkville, Victoria, Australia
| | - Aaron P Russell
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Victoria, Australia
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The long-term outcomes of tobacco control strategies based on the cognitive intervention for smoking cessation in COPD patients. Respir Med 2020; 172:106155. [PMID: 32949957 DOI: 10.1016/j.rmed.2020.106155] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 08/11/2020] [Accepted: 09/09/2020] [Indexed: 12/27/2022]
Abstract
OBJECTIVE To evaluate the long-term efficacy of tobacco control strategies based on cognitive intervention for smoking cessation in chronic obstructive pulmonary disease (COPD) patients, and to provide basis for clinical practice. MATERIALS AND METHODS 102 COPD patients with a long-term history of smoking from the outpatient clinic were recruited in the study. These smokers were randomly divided into intervention group and control group. The intervention group received a cognitive intervention containing individual consultation, telephone follow-ups and self-help materials, etc. The prevalence of quitting smoking, acute exacerbation (AE), lung function and survival were compared in the groups in 10 years. RESULTS There were significant differences between the intervention group and the control group in the rate of persistent quitting smoking in half a year (17.6% vs 3.9%) (P < 0.05), the rate of quitting smoking at the 6th month (58.8% vs 33.3%) (P < 0.05). After 3 months (P < 0.01) and 6 months (P < 0.01), the difference in body weight between the intervention group and the control group was statistically significant. Intervention-group patients had fewer AE per year (P < 0.01) and higher FEV1/FVC ratio (P < 0.01) after 5-year and 10-year follow-up. Besides, the FEV1% predicted in the intervention patients was higher than that in control group after 10-year follow-up. The ages of patients in the death group were greater than those in the survival group. Death-group patients had longer smoking times, higher smoking index, and later onset of COPD symptoms. Death-group patients had lower FEV1% predicted (P < 0.05) and FEV1/FVC ratio (P < 0.01). During 10-year follow-up, 30 patient deaths were recorded (the control group: n = 48; 19 deaths, and intervention group: n = 46; 11 deaths), and patients in the control group had lower survival than those in the intervention group. (P < 0.05). CONCLUSION The method of quitting smoking based on cognitive intervention is an effective way for COPD patients to quit smoking successfully. Quitting smoking can slower deterioration in lung function and improve the survival of COPD patients. CLINICAL TRIAL REGISTRATION NUMBER ChiCTR2000031239 (Chinese clinical trial registry).
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Su J, Li J, Lu Y, Li N, Li P, Wang Z, Wu W, Liu X. The rat model of COPD skeletal muscle dysfunction induced by progressive cigarette smoke exposure: a pilot study. BMC Pulm Med 2020; 20:74. [PMID: 32293377 PMCID: PMC7092612 DOI: 10.1186/s12890-020-1109-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 03/09/2020] [Indexed: 12/13/2022] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) skeletal muscle dysfunction is a prevalent malady that significantly affects patients’ prognosis and quality of life. Although the study of this disease has attracted considerable attention, a definite animal model is yet to be established. This study investigates whether smoke exposure could lead to the development of a COPD skeletal muscle dysfunction model in rats. Methods Sprague Dawley rats were randomly divided into model (MG, n = 8) and control groups (CG, n = 6). The MG was exposed to cigarette smoke for 16 weeks while the CG was not. The body weight and forelimb grip strength of rats were monitored monthly. The pulmonary function and the strength of tibialis anterior muscle were assessed in vitro and compared after establishing the model. The histological changes in lung and gastrocnemius muscles were observed. The expressions of interleukin (IL)-6, IL-8, and tumor necrosis factor (TNF)-α were detected by ELISA, while the expressions of Atrogin-1 and MuRF1 in the gastrocnemius muscle were determined by Western blotting. Results Smoke exposure slowly increases the body weight and forelimb grip strength of MG rats, compared to CG rats. However, it significantly decreases the pulmonary ventilation function and the skeletal muscle contractility of the MG in vitro. Histologically, the lung tissues of MG show typical pathological manifestations of emphysema, while the skeletal muscles present muscular atrophy. The expressions of IL-6, IL-8, and TNF-α in MG rats are significantly higher than those measured in CG rats. Increased levels of Atrogin-1 and MuRF1 were also detected in the gastrocnemius muscle tissue of MG. Conclusion Progressive smoking exposure decreases the contractile function of skeletal muscles, leading to muscular atrophy. It also increases the expressions of inflammatory and muscle protein degradation factors in COPD rats. This indicates that smoke exposure could be used to establish a COPD skeletal muscle dysfunction model in rats.
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Affiliation(s)
- Jianqing Su
- Department of Sports Medicine, Shanghai University of Sport, Shanghai, 200438, China
| | - Jian Li
- Department of Sports Medicine, Shanghai University of Sport, Shanghai, 200438, China
| | - Yufan Lu
- Department of Sports Medicine, Shanghai University of Sport, Shanghai, 200438, China
| | - Ning Li
- Department of Sports Medicine, Shanghai University of Sport, Shanghai, 200438, China
| | - Peijun Li
- Department of Sports Medicine, Shanghai University of Sport, Shanghai, 200438, China
| | - Zhengrong Wang
- Department of Sports Medicine, Shanghai University of Sport, Shanghai, 200438, China
| | - Weibing Wu
- Department of Sports Medicine, Shanghai University of Sport, Shanghai, 200438, China.
| | - Xiaodan Liu
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.,Institute of Rehabilitation Medicine, Shanghai Academy of Traditional Chinese Medicine, Shanghai, 201203, China
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Huang J, Lu W, Ouyang H, Chen Y, Zhang C, Luo X, Li M, Shu J, Zheng Q, Chen H, Chen J, Tang H, Sun D, Yuan JXJ, Yang K, Wang J. Transplantation of Mesenchymal Stem Cells Attenuates Pulmonary Hypertension by Normalizing the Endothelial-to-Mesenchymal Transition. Am J Respir Cell Mol Biol 2020; 62:49-60. [PMID: 31211918 PMCID: PMC6938136 DOI: 10.1165/rcmb.2018-0165oc] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 06/14/2019] [Indexed: 12/18/2022] Open
Abstract
For decades, stem cell therapies for pulmonary hypertension (PH) have progressed from laboratory hypothesis to clinical practice. Promising preclinical investigations have laid both a theoretical and practical foundation for clinical application of mesenchymal stem cells (MSCs) for PH therapy. However, the underlying mechanisms are still poorly understood. We sought to study the effects and mechanisms of MSCs on the treatment of PH. For in vivo experiments, the transplanted GFP+ MSCs were traced at different time points in the lung tissue of a chronic hypoxia-induced PH (CHPH) rat model. The effects of MSCs on PH pathogenesis were evaluated in both CHPH and sugen hypoxia-induced PH models. For in vitro experiments, primary pulmonary microvascular endothelial cells were cultured and treated with the MSC conditioned medium. The specific markers of endothelial-to-mesenchymal transition (EndMT) and cell migration properties were measured. MSCs decreased pulmonary arterial pressure and ameliorated the collagen deposition, and reduced the thickening and muscularization in both CHPH and sugen hypoxia-induced PH rat models. Then, MSCs significantly attenuated the hypoxia-induced EndMT in both the lungs of PH models and primary cultured rat pulmonary microvascular endothelial cells, as reflected by increased mesenchymal cell markers (fibronectin 1 and vimentin) and decreased endothelial cell markers (vascular endothelial cadherin and platelet endothelial cell adhesion molecule-1). Moreover, MSCs also markedly inhibited the protein expression and degradation of hypoxia-inducible factor-2α, which is known to trigger EndMT progression. Our data suggest that MSCs successfully prevent PH by ameliorating pulmonary vascular remodeling, inflammation, and EndMT. Transplantation of MSCs could potentially be a powerful therapeutic approach against PH.
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Affiliation(s)
- Junyi Huang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wenju Lu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Haiping Ouyang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yuqin Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Chenting Zhang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xiaoyun Luo
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Meichan Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jiaze Shu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Qiuyu Zheng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Haixia Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jiyuan Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Haiyang Tang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
- Division of Translational and Regenerative Medicine, the University of Arizona College of Medicine, Tucson, Arizona; and
| | - Dejun Sun
- Division of Pulmonary and Critical Care Medicine, the People’s Hospital of Inner Mongolia, Huhhot, Inner Mongolia, China
| | - Jason X.-J. Yuan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
- Division of Translational and Regenerative Medicine, the University of Arizona College of Medicine, Tucson, Arizona; and
| | - Kai Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jian Wang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
- Division of Translational and Regenerative Medicine, the University of Arizona College of Medicine, Tucson, Arizona; and
- Division of Pulmonary and Critical Care Medicine, the People’s Hospital of Inner Mongolia, Huhhot, Inner Mongolia, China
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Lin L, Hou G, Han D, Yin Y, Kang J, Wang Q. Ursolic acid alleviates airway-vessel remodeling and muscle consumption in cigarette smoke-induced emphysema rats. BMC Pulm Med 2019; 19:103. [PMID: 31170951 PMCID: PMC6555740 DOI: 10.1186/s12890-019-0826-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 02/28/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND This study assessed the effects of ursolic acid (UA) on airway-vessel remodeling and muscle atrophy in cigarette smoke (CS)-induced emphysema rats and investigated potential underlying mechanisms. METHODS Emphysema was induced in a rat model with 3 months of CS exposure. Histology and immunohistochemistry (IHC) stains were used to assess airway-vessel remodeling and muscle atrophy-associated changes. Levels of cleaved-caspase3, 8-OHdG, and S100A4 were measured in airways and associated vessels to evaluate cell apoptosis, oxidant stress, epithelial-to-mesenchymal transition (EMT), and endothelial-to-mesenchymal transition (EndMT)-associated factors. Western blot and/or IHC analyses were performed to measure transforming growth factor-beta 1(TGF-β1)/Smad2.3, alpha-smooth muscle actin (α-SMA), and insulin-like growth factor 1 (IGF1) expression. We also gave cultured HBE and HUVEC cells Cigarette Smoke Extract (CSE) administration and UA intervention. Using Western blot method to measure TGF-β1/Smad2.3, α-SMA, S100A4, and IGF1 molecules expression. RESULTS UA decreased oxidant stress and cell apoptosis in airway and accompanying vascular walls of cigarette smoke-induced emphysema model rats. UA alleviated EMT, EndMT, changes associated with airway-vessel remodeling and muscle atrophy. The UA effects were associated with IGF1 and TGF-β1/Smad2.3 pathways. CONCLUSIONS UA reduced EMT, EndMT, airway-vessel remodeling, and musculi soleus atrophy in CS-induced emphysema model rats at least partly through IGF1 and TGF-β1/Smad2.3 signaling pathways.
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Affiliation(s)
- Li Lin
- Institute of Respiratory Disease, The First Hospital of China Medical University, No. 155 Nanjing North Street, Shenyang, 110001 China
| | - Gang Hou
- Institute of Respiratory Disease, The First Hospital of China Medical University, No. 155 Nanjing North Street, Shenyang, 110001 China
| | - Dan Han
- Institute of Respiratory Disease, The First Hospital of China Medical University, No. 155 Nanjing North Street, Shenyang, 110001 China
| | - Yan Yin
- Institute of Respiratory Disease, The First Hospital of China Medical University, No. 155 Nanjing North Street, Shenyang, 110001 China
| | - Jian Kang
- Institute of Respiratory Disease, The First Hospital of China Medical University, No. 155 Nanjing North Street, Shenyang, 110001 China
| | - Qiuyue Wang
- Institute of Respiratory Disease, The First Hospital of China Medical University, No. 155 Nanjing North Street, Shenyang, 110001 China
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Pang M, Liu HY, Li T, Wang D, Hu XY, Zhang XR, Yu BF, Guo R, Wang HL. Recombinant club cell protein 16 (CC16) ameliorates cigarette smoke‑induced lung inflammation in a murine disease model of COPD. Mol Med Rep 2018; 18:2198-2206. [PMID: 29956762 PMCID: PMC6072201 DOI: 10.3892/mmr.2018.9216] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 06/21/2018] [Indexed: 11/21/2022] Open
Abstract
Club cell protein (CC16) is expressed primarily by club cells possesses anti-inflammatory properties and is located in the bronchiolar epithelium. Previous studies have demonstrated that CC16 deficiency is associated with the progression of chronic obstructive pulmonary disease (COPD). In the present study, the therapeutic effects of recombinant rat CC16 protein in mice with COPD were examined and the underlying mechanisms investigated. A total of 30 adult male C57/BL6 mice were randomly divided into three groups (10 mice/group). A mouse COPD model was generated by exposing 20 mice to cigarette smoke (CS) for 24 weeks. A total of 10 mice were treated intranasally with rCC16 (2.5 µg/g body weight) and control mice were exposed to normal room air. Results indicated that rCC16 treatment ameliorated pathological damage in the lungs and reduced the production of tumor necrosis factor (TNF)-α, interleukin (IL)-6 and IL-8, which were induced by CS exposure. After rCC16 administration, endogenous CC16 was upregulated and the body weight of COPD mice was increased, whereas the opposite was observed in CS-exposed mice. Additionally, rCC16 treatment inhibited the DNA binding of NF-κB/p65 in lung tissues and reduced nuclear translocation of NF-κB/p65 in BALF and epithelial cells. Moreover, rCC16 treatment lead to a decrease in the total number of BALF cells, including macrophages, which was elevated in COPD mice. In conclusion, the present results demonstrate that rCC16 has therapeutic effects on COPD by downregulating pro-inflammatory factors via the NF-κB pathway.
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Affiliation(s)
- Min Pang
- Department of Respiratory Medicine, The First Hospital, Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Hong-Yan Liu
- School of Basic Medicine; Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Ting Li
- Department of Respiratory Medicine, The First Hospital, Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Dan Wang
- Department of Respiratory Medicine, The First Hospital, Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Xiao-Yun Hu
- Department of Respiratory Medicine, The First Hospital, Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Xin-Ri Zhang
- Department of Respiratory Medicine, The First Hospital, Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Bao-Feng Yu
- School of Basic Medicine; Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Rui Guo
- School of Basic Medicine; Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Hai-Long Wang
- School of Basic Medicine; Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
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10
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Guan R, Wang J, Li Z, Ding M, Li D, Xu G, Wang T, Chen Y, Yang Q, Long Z, Cai Z, Zhang C, Liang X, Dong L, Zhao L, Zhang H, Sun D, Lu W. Sodium Tanshinone IIA Sulfonate Decreases Cigarette Smoke-Induced Inflammation and Oxidative Stress via Blocking the Activation of MAPK/HIF-1α Signaling Pathway. Front Pharmacol 2018; 9:263. [PMID: 29765317 PMCID: PMC5938387 DOI: 10.3389/fphar.2018.00263] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 03/09/2018] [Indexed: 12/27/2022] Open
Abstract
Aberrant activation of hypoxia-inducible factor (HIF)-1α is frequently encountered and promotes oxidative stress and inflammation in chronic obstructive pulmonary disease (COPD). The present study investigated whether sodium tanshinone IIA sulfonate (STS), a water-soluble derivative of tanshinone IIA, can mediate its effect through inhibiting HIF-1α–induced oxidative stress and inflammation in cigarette smoke (CS)-induced COPD in mice. Here, we found that STS improved pulmonary function, ameliorated emphysema and decreased the infiltration of inflammatory cells in the lungs of CS-exposed mice. STS reduced CS- and cigarette smoke extract (CSE)-induced upregulation of tumor necrosis factor (TNF)-α and interleukin (IL)-1β in the lungs and macrophages. STS also inhibited CSE-induced reactive oxygen species (ROS) production, as well as the upregulation of heme oxygenase (HO)-1, NOX1 and matrix metalloproteinase (MMP)-9 in macrophages. In addition, STS suppressed HIF-1α expression in vivo and in vitro, and pretreatment with HIF-1α siRNA reduced CSE-induced elevation of TNF-α, IL-1β, and HO-1 content in the macrophages. Moreover, we found that STS inhibited CSE-induced the phosphorylation of ERK, p38 MAPK and JNK in macrophages, and inhibition of these signaling molecules significantly repressed CSE-induced HIF-1α expression. It indicated that STS inhibits CSE-induced HIF-1α expression likely by blocking MAPK signaling. Furthermore, STS also promoted HIF-1α protein degradation in CSE-stimulated macrophages. Taken together, these results suggest that STS prevents COPD development possibly through the inhibition of HIF-1α signaling, and may be a novel strategy for the treatment of COPD.
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Affiliation(s)
- Ruijuan Guan
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jian Wang
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Ziying Li
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Mingjing Ding
- Departments of Respiratory and Critical Diseases, Inner Mongolia Autonomous Region People's Hospital, Hohhot, China
| | - Defu Li
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Guihua Xu
- Department of Clinical Medical Research Center, Inner Mongolia Autonomous Region People's Hospital, Hohhot, China
| | - Tao Wang
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yuqin Chen
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Qian Yang
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Zhen Long
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Zhou Cai
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Chenting Zhang
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Xue Liang
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Lian Dong
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Li Zhao
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Haiyun Zhang
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Dejun Sun
- Departments of Respiratory and Critical Diseases, Inner Mongolia Autonomous Region People's Hospital, Hohhot, China
| | - Wenju Lu
- State Key Lab of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
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11
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Izzotti A, Longobardi M, La Maestra S, Micale RT, Pulliero A, Camoirano A, Geretto M, D'Agostini F, Balansky R, Miller MS, Steele VE, De Flora S. Release of MicroRNAs into Body Fluids from Ten Organs of Mice Exposed to Cigarette Smoke. Theranostics 2018; 8:2147-2160. [PMID: 29721069 PMCID: PMC5928877 DOI: 10.7150/thno.22726] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 02/06/2018] [Indexed: 12/13/2022] Open
Abstract
Purpose: MicroRNAs are small non-coding RNAs that regulate gene expression, thereby playing a role in a variety of physiological and pathophysiological states. Exposure to cigarette smoke extensively downregulates microRNA expression in pulmonary cells of mice, rats, and humans. Cellular microRNAs are released into body fluids, but a poor parallelism was previously observed between lung microRNAs and circulating microRNAs. The purpose of the present study was to validate the application of this epigenetic biomarker by using less invasive collection procedures. Experimental design: Using microarray analyses, we measured 1135 microRNAs in 10 organs and 3 body fluids of mice that were either unexposed or exposed to mainstream cigarette smoke for up to 8 weeks. The results obtained with selected miRNAs were validated by qPCR. Results: The lung was the main target affected by smoke (190 dysregulated miRNAs), followed by skeletal muscle (180), liver (138), blood serum (109), kidney (96), spleen (89), stomach (36), heart (33), bronchoalveolar lavage fluid (32), urine (27), urinary bladder (12), colon (5), and brain (0). Skeletal muscle, kidney, and lung were the most important sources of smoke-altered microRNAs in blood serum, urine, and bronchoalveolar lavage fluid, respectively. Conclusions: microRNA expression analysis was able to identify target organs after just 8 weeks of exposure to smoke, well before the occurrence of any detectable histopathological alteration. The present translational study validates the use of body fluid microRNAs as biomarkers applicable to human biomonitoring for mechanistic studies, diagnostic purposes, preventive medicine, and therapeutic strategies.
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Affiliation(s)
- Alberto Izzotti
- Department of Health Sciences, University of Genoa, 16132 Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
| | | | | | - Rosanna T. Micale
- Department of Health Sciences, University of Genoa, 16132 Genoa, Italy
| | | | - Anna Camoirano
- Department of Health Sciences, University of Genoa, 16132 Genoa, Italy
| | - Marta Geretto
- Department of Health Sciences, University of Genoa, 16132 Genoa, Italy
| | | | - Roumen Balansky
- Department of Health Sciences, University of Genoa, 16132 Genoa, Italy
- National Center of Oncology, Sofia-1756, Bulgaria
| | - Mark Steven Miller
- Division of Cancer Prevention, National Cancer Institute, Rockville, MD 20850, USA
| | - Vernon E. Steele
- Division of Cancer Prevention, National Cancer Institute, Rockville, MD 20850, USA
| | - Silvio De Flora
- Department of Health Sciences, University of Genoa, 16132 Genoa, Italy
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12
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Bai JW, Chen XX, Liu S, Yu L, Xu JF. Smoking cessation affects the natural history of COPD. Int J Chron Obstruct Pulmon Dis 2017; 12:3323-3328. [PMID: 29180862 PMCID: PMC5695262 DOI: 10.2147/copd.s150243] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Cigarette smoking is the most commonly encountered and readily identifiable risk factor for COPD. However, it is not clear which quantitative factors related to smoking influence the prognosis of COPD patients. Methods A total of 204 patients with a long-term history of smoking were enrolled into this study and followed up for 5 years. Patients were divided into “death” or “survival” groups based on follow-up results and “quitting-smoking” or “continuing-smoking” groups based on whether they gave up smoking. Results Patients in the death group had a longer smoking time, lower prevalence of quitting smoking, later onset of COPD symptoms, older age at quitting smoking, lower forced expiratory volume in one second (FEV1) % predicted, and lower ratio of FEV1/forced vital capacity. Age, age at quitting smoking, and FEV1% predicted were independently associated with mortality from COPD. Compared to the continuing-smoking group, the quitting-smoking group had a lower mortality rate, longer course of COPD, earlier onset of COPD symptoms, and lower residual volume percent predicted. During the 5-year follow-up, 113 deaths were recorded (quitting-smoking group: n=92; 40 deaths; continuing-smoking group: n=112; 73 deaths). The mortality risk remained significantly higher in the continuing-smoking group than the quitting-smoking group (log-rank test, 13.59; P=0.0002). Conclusion Smoking time may be related to the mortality rate from COPD. Smoking cessation has the greatest capacity to influence the natural history of COPD.
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Affiliation(s)
- Jiu-Wu Bai
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai
| | - Xiao-Xin Chen
- Department of Respiratory Medicine, Second Peoples Hospital of Nantong, Nantong, Jiangsu Province
| | - Shengsheng Liu
- Department of Tuberculosis, Anhui Chest Hospital, Hefei, Anhui Province, People's Republic of China
| | - Li Yu
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai
| | - Jin-Fu Xu
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai
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