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Gao Z, Wang J, Lu G, Wu Q, Wang S, Wu X, Ou C, Wu Z, Yu H, Wang Y. Exploration the mechanism of Shenling Baizhu San in the treatment of chronic obstructive pulmonary disease based on UPLC-Q-TOF-MS/MS, network pharmacology and in vitro experimental verification. JOURNAL OF ETHNOPHARMACOLOGY 2024; 324:117728. [PMID: 38216101 DOI: 10.1016/j.jep.2024.117728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/15/2023] [Accepted: 01/05/2024] [Indexed: 01/14/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Shenling Baizhu San (SLBZS) is a formula of traditional Chinese medicine (TCM) that enhances the functions of the qi, spleen, and lung. According to the theory of TCM, chronic obstructive pulmonary disease (COPD) is often caused by lung qi deficiency, and SLBZS is often used in the treatment of COPD and has achieved remarkable results. However, the active components of SLBZS absorbed in serum and the underlying mechanism of SLBZS in treating COPD remain unclear and require further studies. AIM OF THE STUDY The objective of this study is to investigate the active components of SLBZS in rat serum, as well as the crucial targets and signaling pathways involved in the therapeutic effects of SLBZS for COPD. MATERIALS AND METHODS First, the absorption components and metabolites of SLBZS in rat serum were identified using ultra-performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry (UPLC-Q-TOF-MS/MS). Second, potential targets of SLBZS for the treatment of COPD were acquired from publicly accessible online sources. Cytoscape (v3.7.0) software was used to construct a component-target-pathway network and a protein-protein interaction (PPI) network. The Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis of potential targets was performed using the Metascape database. The binding status of the active components in SLBZS to the potential targets was assessed with molecular docking technology. Finally, a cell model of COPD was successfully developed for experimental validation In vitro. RESULTS A total of 108 active components were identified, including 30 prototype components and 78 metabolites. A total of 292 potential targets for the treatment of COPD were identified, including TNF, IL-6, TLR9, RELA, and others. The KEGG pathway included inflammatory mediator regulation of TRP channels, necroptosis, and the NF-κB signaling pathway, among others. The In vitro experiments showed that SLBZS-containing serum had the ability to decrease the levels of inflammatory factors and cell death. Additionally, it was observed that SLBZS-containing serum could control the expression levels of TLR9, MyD88, TRAF6, NF-κB, and IκBα at the mRNA and protein levels. These findings suggested that SLBZS-containing serum was likely to be involved in the regulation of the TLR9/NF-κB pathway. CONCLUSIONS The mechanism of action of SLBZS on COPD was preliminarily elucidated using UPLC-Q-TOF-MS/MS, network pharmacology, and In vitro experiments. The primary active components and potential targets of SLBZS were identified, providing a scientific foundation for further research.
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Affiliation(s)
- Zu Gao
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Jiayun Wang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Guangying Lu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China; Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Qiaolan Wu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Shijun Wang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China; Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Xiaolin Wu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Chunxue Ou
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Zhichun Wu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China; Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Huayun Yu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China; Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China
| | - Yuan Wang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China; Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan, 250355, PR China.
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Ni R, Jiang L, Zhang C, Liu M, Luo Y, Hu Z, Mou X, Zhu Y. Biologic Mechanisms of Macrophage Phenotypes Responding to Infection and the Novel Therapies to Moderate Inflammation. Int J Mol Sci 2023; 24:ijms24098358. [PMID: 37176064 PMCID: PMC10179618 DOI: 10.3390/ijms24098358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 05/02/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023] Open
Abstract
Pro-inflammatory and anti-inflammatory types are the main phenotypes of the macrophage, which are commonly notified as M1 and M2, respectively. The alteration of macrophage phenotypes and the progression of inflammation are intimately associated; both phenotypes usually coexist throughout the whole inflammation stage, involving the transduction of intracellular signals and the secretion of extracellular cytokines. This paper aims to address the interaction of macrophages and surrounding cells and tissues with inflammation-related diseases and clarify the crosstalk of signal pathways relevant to the phenotypic metamorphosis of macrophages. On these bases, some novel therapeutic methods are proposed for regulating inflammation through monitoring the transition of macrophage phenotypes so as to prevent the negative effects of antibiotic drugs utilized in the long term in the clinic. This information will be quite beneficial for the diagnosis and treatment of inflammation-related diseases like pneumonia and other disorders involving macrophages.
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Affiliation(s)
- Renhao Ni
- Health Science Center, Ningbo University, Ningbo 315211, China
| | - Lingjing Jiang
- Health Science Center, Ningbo University, Ningbo 315211, China
| | - Chaohai Zhang
- Health Science Center, Ningbo University, Ningbo 315211, China
| | - Mujie Liu
- Health Science Center, Ningbo University, Ningbo 315211, China
| | - Yang Luo
- Health Science Center, Ningbo University, Ningbo 315211, China
| | - Zeming Hu
- Health Science Center, Ningbo University, Ningbo 315211, China
| | - Xianbo Mou
- Health Science Center, Ningbo University, Ningbo 315211, China
| | - Yabin Zhu
- Health Science Center, Ningbo University, Ningbo 315211, China
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Lu J, Shi Y, Zhang F, Zhang Y, Zhao X, Zheng H, Li L, Zhao S, Zhao L. Mechanism of lnRNA-ICL involved in lung cancer development in COPD patients through modulating microRNA-19-3p/NKRF/NF-κB axis. Cancer Cell Int 2023; 23:58. [PMID: 37013587 PMCID: PMC10071758 DOI: 10.1186/s12935-023-02900-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 03/23/2023] [Indexed: 04/05/2023] Open
Abstract
The incidence of lung cancer (LC) in chronic obstructive pulmonary disease (COPD) patients is dozens of times higher than that in patients without COPD. Elevated activity of nuclear factor-k-gene binding (NF-κB) was found in lung tissue of patients with COPD, and the continuous activation of NF-κB is observed in both malignant transformation and tumor progression of LC, suggesting that NF-κB and its regulators may play a key role in the progression of LC in COPD patients. Here, we report for the first time that a key long non-coding RNA (lncRNA)-ICL involved in the regulation of NF-κB activity in LC tissues of COPD patients. The analyses showed that the expression of ICL significantly decreased in LC tissues of LC patients with COPD than that in LC tissues of LC patients without COPD. Functional experiments in vitro showed that exogenous ICL only significantly inhibited the proliferation, invasion and migration in primary tumor cells of LC patients with COPD compared to LC patients without COPD. Mechanism studies have shown that ICL could suppress the activation of NF-κB by blocking the hsa-miR19-3p/NKRF/NF-κB pathway as a microRNA sponge. Furthermore, In vivo experiments showed that exogenous ICL effectively inhibited the growth of patient-derived subcutaneous tumor xenografts (PDX) of LC patients with COPD and significantly prolonged the survival time of tumor-bearing mice. In a word, our study shows that the decrease of ICL is associated with an increased risk of LC in patients with COPD, ICL is not only expected to be a new therapeutic target for LC in COPD patients, but also has great potential to be used as a new marker for evaluating the occurrence, severity stratification and prognosis of LC in patients with COPD.
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Affiliation(s)
- Jingjing Lu
- Department of Respiratory and Critical Care Medicine, Shanghai East Hospital, Tongji University School of Medicine, NO. 150 Jimo Road, Shanghai, 200120, China
| | - Yan Shi
- Institute for Clinical Trials of Drug, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, China
| | - Feng Zhang
- Department of Pharmacy, Changzheng Hospital, Naval Medical University, No. 415, Fengyang Road, Shanghai, 200003, China
| | - Ying Zhang
- Department of Emergency Medicine, Shanghai East Hospital, Tongji University School of Medicine, NO. 150 Jimo Road, Shanghai, 200120, China
| | - Xiangwang Zhao
- Department of Emergency Medicine, Shanghai East Hospital, Tongji University School of Medicine, NO. 150 Jimo Road, Shanghai, 200120, China
| | - Haiyan Zheng
- Department of Emergency Medicine, Shanghai East Hospital, Tongji University School of Medicine, NO. 150 Jimo Road, Shanghai, 200120, China
| | - Lingyu Li
- Department of Emergency Medicine, Shanghai East Hospital, Tongji University School of Medicine, NO. 150 Jimo Road, Shanghai, 200120, China
| | - Shiqiao Zhao
- Department of Biostatistics, Yale School of Public Health, New Haven, CT, 06510, USA
| | - Liming Zhao
- Department of Respiratory and Critical Care Medicine, Shanghai East Hospital, Tongji University School of Medicine, NO. 150 Jimo Road, Shanghai, 200120, China.
- Department of Emergency Medicine, Shanghai East Hospital, Tongji University School of Medicine, NO. 150 Jimo Road, Shanghai, 200120, China.
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4
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Eggelbusch M, Shi A, Broeksma BC, Vázquez-Cruz M, Soares MN, de Wit GMJ, Everts B, Jaspers RT, Wüst RCI. The NLRP3 inflammasome contributes to inflammation-induced morphological and metabolic alterations in skeletal muscle. J Cachexia Sarcopenia Muscle 2022; 13:3048-3061. [PMID: 35978267 PMCID: PMC9745466 DOI: 10.1002/jcsm.13062] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 06/09/2022] [Accepted: 07/04/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Systemic inflammation is associated with skeletal muscle atrophy and metabolic dysfunction. Although the nucleotide-binding oligomerization domain-like receptor family pyrin domain containing 3 (NLRP3) inflammasome contributes to cytokine production in immune cells, its role in skeletal muscle is poorly understood. Here, we studied the link between inflammation, NLRP3, muscle morphology, and metabolism in in vitro cultured C2C12 myotubes, independent of immune cell involvement. METHODS Differentiated C2C12 myotubes were treated with lipopolysaccharide (LPS; 0, 10, and 100-200 ng/mL) to induce activation of the NLRP3 inflammasome with and without MCC950, a pharmacological inhibitor of NLRP3-induced IL-1β production. We assessed markers of the NLRP3 inflammasome, cell diameter, reactive oxygen species, and mitochondrial function. RESULTS NLRP3 gene expression and protein concentrations increased in a time-dependent and dose-dependent manner. Intracellular IL-1β concentration significantly increased (P < 0.0001), but significantly less with MCC950 (P = 0.03), suggestive of moderate activation of the NLRP3 inflammasome in cultured myotubes upon LPS stimulation. LPS suppressed myotube growth after 24 h (P = 0.03), and myotubes remained smaller up to 72 h (P = 0.0009). Exposure of myotubes to IL-1β caused similar alterations in cell morphology, and MCC950 mitigated these LPS-induced differences in cell diameter. NLRP3 appeared to co-localize with mitochondria, more so upon exposure to LPS. Mitochondrial reactive oxygen species were higher after LPS (P = 0.03), but not after addition of MCC950. Myotubes had higher glycolytic rates, and mitochondria were more fragmented upon LPS exposure, which was not altered by MCC950 supplementation. CONCLUSIONS LPS-induced activation of the NLRP3 inflammasome in cultured myotubes contributes to morphological and metabolic alterations, likely due to its mitochondrial association.
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Affiliation(s)
- Moritz Eggelbusch
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands.,Department of Nutrition and Dietetics, Amsterdam UMC location VUmc, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands.,Faculty of Sports and Nutrition, Center of Expertise Urban Vitality, Amsterdam University of Applied Sciences, Amsterdam, The Netherlands
| | - Andi Shi
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands.,Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands.,Department of Prosthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China
| | - Bonnie C Broeksma
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Mariana Vázquez-Cruz
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Madu N Soares
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Gerard M J de Wit
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Bart Everts
- Department of Parasitology, Leiden University Medical Center, University of Leiden, Leiden, The Netherlands
| | - Richard T Jaspers
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands.,Department of Prosthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China
| | - Rob C I Wüst
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
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Li C, Deng Z, Zheng G, Xie T, Wei X, Huo Z, Bai J. Histone Deacetylase 2 Suppresses Skeletal Muscle Atrophy and Senescence via NF-κB Signaling Pathway in Cigarette Smoke-Induced Mice with Emphysema. Int J Chron Obstruct Pulmon Dis 2021; 16:1661-1675. [PMID: 34113097 PMCID: PMC8187003 DOI: 10.2147/copd.s314640] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 05/20/2021] [Indexed: 01/11/2023] Open
Abstract
Background Exposure to cigarette smoke (CS) is the main risk factor for chronic obstructive pulmonary disease (COPD). CS not only causes chronic airway inflammation and lung damage but also is involved in skeletal muscle dysfunction (SMD). Previous studies have shown that histone deacetylase 2 (HDAC2) plays an important role in the progression of COPD. The aim of this study was to determine the role of HDAC2 in CS-induced skeletal muscle atrophy and senescence. Methods Gastrocnemius muscle weight and cross-sectional area (CSA) were measured in mice with CS-induced emphysema, and changes in the expression of atrophy-related markers and senescence-related markers were detected. In addition, the relationship between HDAC2 expression and skeletal muscle atrophy and senescence was also investigated. Results Mice exposed to CS for 24 weeks developed emphysema and gastrocnemius atrophy and exhibited a decrease in gastrocnemius weight and skeletal muscle cross-sectional area. In addition, the HDAC2 protein levels were significantly decreased while the levels of atrophy-associated markers, including MURF1 and MAFbx, and senescence-associated markers, including P53 and P21, were significantly increased in the gastrocnemius muscle. In vitro, the exposure of C2C12 cells to cigarette smoke extract (CSE) significantly increased the MAFbx and MURF1 protein levels and decreased the HDAC2 protein levels. Moreover, overexpression of HDAC2 significantly ameliorated CSE-induced atrophy and senescence and reversed the increased MURF1, MAFbx, P53, and P21 expression in C2C12 cells. In addition, CSE treatment significantly increased the IKK and NF-κB p65 protein levels, and PTDC (an NF-kB inhibitor) ameliorated atrophy and senescence. Conclusion Our findings suggest that HDAC2 plays an important role in CS-induced skeletal muscle atrophy and senescence, possibly through the NF-κB pathway.
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Affiliation(s)
- Chao Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, People's Republic of China
| | - Zhaohui Deng
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, People's Republic of China
| | - Guixian Zheng
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, People's Republic of China
| | - Ting Xie
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, People's Republic of China
| | - Xinyan Wei
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, People's Republic of China
| | - Zengyu Huo
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, People's Republic of China
| | - Jing Bai
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, People's Republic of China
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Cheng W, Lu J, Wang B, Sun L, Zhu B, Zhou F, Ding Z. Inhibition of inflammation-induced injury and cell migration by coelonin and militarine in PM 2.5-exposed human lung alveolar epithelial A549 cells. Eur J Pharmacol 2021; 896:173931. [PMID: 33549578 DOI: 10.1016/j.ejphar.2021.173931] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 01/27/2021] [Accepted: 01/29/2021] [Indexed: 12/22/2022]
Abstract
Accumulating studies suggest that fine particulate matter (PM2.5) pollutants in the air are easily enter into alveoli and even the bloodstream, resulting in an inflammatory response that not only triggers respiratory disorders but also causes permanent damage to various organs. Recent findings suggest that coelonin and militarine enriched in orchids can inhibit inflammation-induced injury against respiratory diseases. Here, we evaluated the anti-inflammatory properties of coelonin and militarine and examined their underlying molecular mechanisms in A549 cells exposed to PM2.5. PM2.5 induced significant intracellular reactive oxidative stress accumulation at a concentration of 250 μg/ml, as determined using the dichlorodihydrofluorescein diacetate (DCFH-DA) fluorescence assay. Cell viability was assessed via the MTS assay to determine the concentrations of compounds appropriate for use in subsequent experiments. Data from the enzyme-linked immunosorbent assay (ELISA) showed that both coelonin (10 and 20 μg/ml) and militarine (5 and 10 μg/ml) mitigated PM2.5-induced inflammation by reducing the generation of inflammatory factors, including interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α). Quantitative real-time PCR (qRT-PCR) analysis revealed a remarkable decrease in IL-6, TNF-α, cyclooxygenase-2 (COX-2) and interleukin-1β (IL-1β) mRNA levels in the coelonin and militarine-pretreated groups. In Western blot analysis, expression of inhibitor of NF-κB (IκBα) protein in the coelonin and militarine pretreatment groups was significantly increased compared with the PM2.5 (only) treatment group (P < 0.05), concomitant with a significant decrease in phospho-IκB kinase β/IκB kinase β (p-IKKβ/IKKβ), phospho-nuclear factor of kappa B p65/nuclear factor of kappa B p65 (p-NF-κBp65/NF-κBp65) and COX-2 proteins (P < 0.05). Both coelonin and militarine inhibited migration and inflammation by suppressing PM2.5-induced IKK phosphorylation, and followed by IκBα protein degradation and NF-κB activation. Our collective data strongly supported the utility of coelonin and militarine as novel sources for development of treatments for PM2.5-induced lung diseases.
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Affiliation(s)
- Wen Cheng
- College of Life Sciences, Zhejiang Chinese Medical University, No.548, Binjiang District, Hangzhou, 310053, Zhejiang, People's Republic of China
| | - Jingjing Lu
- College of Life Sciences, Zhejiang Chinese Medical University, No.548, Binjiang District, Hangzhou, 310053, Zhejiang, People's Republic of China
| | - Bixu Wang
- College of Medical Technology, Zhejiang Chinese Medical University, No.548, Binjiang District, Hangzhou, 310053, Zhejiang, People's Republic of China
| | - Ling Sun
- College of Medical Technology, Zhejiang Chinese Medical University, No.548, Binjiang District, Hangzhou, 310053, Zhejiang, People's Republic of China
| | - Bingqi Zhu
- College of Medical Technology, Zhejiang Chinese Medical University, No.548, Binjiang District, Hangzhou, 310053, Zhejiang, People's Republic of China
| | - Fangmei Zhou
- College of Medical Technology, Zhejiang Chinese Medical University, No.548, Binjiang District, Hangzhou, 310053, Zhejiang, People's Republic of China
| | - Zhishan Ding
- College of Medical Technology, Zhejiang Chinese Medical University, No.548, Binjiang District, Hangzhou, 310053, Zhejiang, People's Republic of China.
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Leermakers PA, Remels AHV, Langen RCJ, Schols AMWJ, Gosker HR. Pulmonary inflammation-induced alterations in key regulators of mitophagy and mitochondrial biogenesis in murine skeletal muscle. BMC Pulm Med 2020; 20:20. [PMID: 31964384 PMCID: PMC6975090 DOI: 10.1186/s12890-020-1047-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 01/06/2020] [Indexed: 11/20/2022] Open
Abstract
Background Both mitophagy, a selective mechanism for clearance of mitochondria, and mitochondrial biogenesis are key processes determining mitochondrial content and oxidative capacity of the musculature. Abnormalities in these processes could therefore contribute to deterioration of peripheral muscle oxidative capacity as observed in e.g. chronic obstructive pulmonary disease. Although it has been suggested that inflammatory mediators can modulate both mitophagy and mitochondrial biogenesis, it is unknown whether acute pulmonary inflammation affects these processes in oxidative and glycolytic skeletal muscle in vivo. Therefore, we hypothesised that molecular signalling patterns of mitochondrial breakdown and biogenesis temporally shift towards increased breakdown and decreased biogenesis in the skeletal muscle of mice exposed to one single bolus of IT-LPS, as a model for acute lung injury and pulmonary inflammation. Methods We investigated multiple important constituents and molecular regulators of mitochondrial breakdown, biogenesis, dynamics, and mitochondrial content in skeletal muscle over time in a murine (FVB/N background) model of acute pulmonary- and systemic inflammation induced by a single bolus of intra-tracheally (IT)-instilled lipopolysaccharide (LPS). Moreover, we compared the expression of these constituents between gastrocnemius and soleus muscle. Results Both in soleus and gastrocnemius muscle, IT-LPS instillation resulted in molecular patterns indicative of activation of mitophagy. This coincided with modulation of mRNA transcript abundance of genes involved in mitochondrial fusion and fission as well as an initial decrease and subsequent recovery of transcript levels of key proteins involved in the molecular regulation of mitochondrial biogenesis. Moreover, no solid differences in markers for mitochondrial content were found. Conclusions These data suggest that one bolus of IT-LPS results in a temporal modulation of mitochondrial clearance and biogenesis in both oxidative and glycolytic skeletal muscle, which is insufficient to result in a reduction of mitochondrial content.
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Affiliation(s)
- Pieter A Leermakers
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, P.O. Box 5800, 6202 AZ, Maastricht, the Netherlands
| | - Alexander H V Remels
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - Ramon C J Langen
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, P.O. Box 5800, 6202 AZ, Maastricht, the Netherlands
| | - Annemie M W J Schols
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, P.O. Box 5800, 6202 AZ, Maastricht, the Netherlands
| | - Harry R Gosker
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, P.O. Box 5800, 6202 AZ, Maastricht, the Netherlands.
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Jing H, Gao X, Xu L, Lin H, Zhang Z. H 2S promotes a glycometabolism disorder by disturbing the Th1/Th2 balance during LPS-induced inflammation in the skeletal muscles of chickens. CHEMOSPHERE 2019; 222:124-131. [PMID: 30703651 DOI: 10.1016/j.chemosphere.2019.01.136] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 12/28/2018] [Accepted: 01/23/2019] [Indexed: 06/09/2023]
Abstract
Hydrogen sulfide (H2S) is a common environmental pollutant. In humans, H2S enters the body and is transported to different tissues and organs, inducing various types of damage such as chronic inflammatory reactions. Glucose metabolism disorders have been shown to be closely associated with chronic inflammation. The goal of the present study was to investigate the effects and mechanisms of H2S on glycometabolism disorders and chronic inflammatory responses. A chronic inflammation model in the skeletal muscles of chickens was induced using lipopolysaccharide (LPS), after which the animals were exposed to exogenous H2S. Subsequently, the glucose metabolism and the pathways associated with chronic inflammation were analyzed. The pathological analysis showed that significant inflammatory injury to skeletal muscles occurred after animals exposed to H2S. The Th1/Th2 ratio imbalance was exacerbated after exposure to H2S with IFNγ downregulated and IL-1, IL-4, and IL-6 upregulated. In addition, the level of IκBα was suppressed and induced the expression of NF-κB, significantly activating the inflammatory pathway, while the expression of heat shock proteins was elevated. In addition, glucose metabolism factors were analyzed. IRS1 phosphorylation was inhibited in animals exposed to H2S, and the expression of insulin-like growth factor (IGF) signaling pathway-related factors was upregulated to promote insulin resistance, causing glucose metabolism disorders. The results of this study revealed that H2S can trigger changes in the ratio of Th1/Th2 to produce more proinflammatory cytokines that disturb the insulin signaling pathway, causing glycometabolism disorders during the inflammatory response in the skeletal muscles of chickens.
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Affiliation(s)
- Hongyuan Jing
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Xuejiao Gao
- Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, College of Life Sciences, Hubei University, Wuhan, Hubei, 430062, PR China
| | - Liqiang Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Hongjin Lin
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, PR China.
| | - Ziwei Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, PR China.
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Aniort J, Stella A, Philipponnet C, Poyet A, Polge C, Claustre A, Combaret L, Béchet D, Attaix D, Boisgard S, Filaire M, Rosset E, Burlet-Schiltz O, Heng AE, Taillandier D. Muscle wasting in patients with end-stage renal disease or early-stage lung cancer: common mechanisms at work. J Cachexia Sarcopenia Muscle 2019; 10:323-337. [PMID: 30697967 PMCID: PMC6463476 DOI: 10.1002/jcsm.12376] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 11/12/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Loss of muscle mass worsens many diseases such as cancer and renal failure, contributes to the frailty syndrome, and is associated with an increased risk of death. Studies conducted on animal models have revealed the preponderant role of muscle proteolysis and in particular the activation of the ubiquitin proteasome system (UPS). Studies conducted in humans remain scarce, especially within renal deficiency. Whether a shared atrophying programme exists independently of the nature of the disease remains to be established. The aim of this work was to identify common modifications at the transcriptomic level or the proteomic level in atrophying skeletal muscles from cancer and renal failure patients. METHODS Muscle biopsies were performed during scheduled interventions in early-stage (no treatment and no detectable muscle loss) lung cancer (LC), chronic haemodialysis (HD), or healthy (CT) patients (n = 7 per group; 86% male; 69.6 ± 11.4, 67.9 ± 8.6, and 70.2 ± 7.9 years P > 0.9 for the CT, LC, and HD groups, respectively). Gene expression of members of the UPS, autophagy, and apoptotic systems was measured by quantitative real-time PCR. A global analysis of the soluble muscle proteome was conducted by shotgun proteomics for investigating the processes altered. RESULTS We found an increased expression of several UPS and autophagy-related enzymes in both LC and HD patients. The E3 ligases MuRF1 (+56 to 78%, P < 0.01), MAFbx (+68 to 84%, P = 0.02), Hdm2 (+37 to 59%, P = 0.02), and MUSA1/Fbxo30 (+47 to 106%, P = 0.01) and the autophagy-related genes CTPL (+33 to 47%, P = 0.03) and SQSTM1 (+47 to 137%, P < 0.01) were overexpressed. Mass spectrometry identified >1700 proteins, and principal component analysis revealed three differential proteomes that matched to the three groups of patients. Orthogonal partial least square discriminant analysis created a model, which distinguished the muscles of diseased patients (LC or HD) from those of CT subjects. Proteins that most contributed to the model were selected. Functional analysis revealed up to 238 proteins belonging to nine metabolic processes (inflammatory response, proteolysis, cytoskeleton organization, glucose metabolism, muscle contraction, oxidant detoxification, energy metabolism, fatty acid metabolism, and extracellular matrix) involved in and/or altered by the atrophying programme in both LC and HD patients. This was confirmed by a co-expression network analysis. CONCLUSIONS We were able to identify highly similar modifications of several metabolic pathways in patients exhibiting diseases with different aetiologies (early-stage LC vs. long-term renal failure). This strongly suggests that a common atrophying programme exists independently of the disease in human.
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Affiliation(s)
- Julien Aniort
- INRA, Université Clermont Auvergne, UMR 1019, Human Nutrition Unit (UNH), CNRH Auvergne (Centre de Recherche en Nutrition Humaine d'Auvergne), Clermont-Ferrand, France.,Nephrology, Dialysis and Transplantation Department, Gabriel Montpied University Hospital, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
| | - Alexandre Stella
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, Centre National de la Recherche Scientifique, Université Paul Sabatier, France
| | - Carole Philipponnet
- INRA, Université Clermont Auvergne, UMR 1019, Human Nutrition Unit (UNH), CNRH Auvergne (Centre de Recherche en Nutrition Humaine d'Auvergne), Clermont-Ferrand, France.,Nephrology, Dialysis and Transplantation Department, Gabriel Montpied University Hospital, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
| | - Anais Poyet
- INRA, Université Clermont Auvergne, UMR 1019, Human Nutrition Unit (UNH), CNRH Auvergne (Centre de Recherche en Nutrition Humaine d'Auvergne), Clermont-Ferrand, France.,Nephrology Department, Hospital of Roanne, Roanne, France
| | - Cécile Polge
- INRA, Université Clermont Auvergne, UMR 1019, Human Nutrition Unit (UNH), CNRH Auvergne (Centre de Recherche en Nutrition Humaine d'Auvergne), Clermont-Ferrand, France
| | - Agnès Claustre
- INRA, Université Clermont Auvergne, UMR 1019, Human Nutrition Unit (UNH), CNRH Auvergne (Centre de Recherche en Nutrition Humaine d'Auvergne), Clermont-Ferrand, France
| | - Lydie Combaret
- INRA, Université Clermont Auvergne, UMR 1019, Human Nutrition Unit (UNH), CNRH Auvergne (Centre de Recherche en Nutrition Humaine d'Auvergne), Clermont-Ferrand, France
| | - Daniel Béchet
- INRA, Université Clermont Auvergne, UMR 1019, Human Nutrition Unit (UNH), CNRH Auvergne (Centre de Recherche en Nutrition Humaine d'Auvergne), Clermont-Ferrand, France
| | - Didier Attaix
- INRA, Université Clermont Auvergne, UMR 1019, Human Nutrition Unit (UNH), CNRH Auvergne (Centre de Recherche en Nutrition Humaine d'Auvergne), Clermont-Ferrand, France
| | - Stéphane Boisgard
- Orthopedic Surgery Department, Gabriel Montpied University Hospital, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
| | - Marc Filaire
- Thoracic Surgery Department, Gabriel Montpied University Hospital, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
| | - Eugénio Rosset
- Vascular Surgery Department, Gabriel Montpied University Hospital, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
| | - Odile Burlet-Schiltz
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, Centre National de la Recherche Scientifique, Université Paul Sabatier, France
| | - Anne-Elisabeth Heng
- INRA, Université Clermont Auvergne, UMR 1019, Human Nutrition Unit (UNH), CNRH Auvergne (Centre de Recherche en Nutrition Humaine d'Auvergne), Clermont-Ferrand, France.,Nephrology, Dialysis and Transplantation Department, Gabriel Montpied University Hospital, University Hospital of Clermont-Ferrand, Clermont-Ferrand, France
| | - Daniel Taillandier
- INRA, Université Clermont Auvergne, UMR 1019, Human Nutrition Unit (UNH), CNRH Auvergne (Centre de Recherche en Nutrition Humaine d'Auvergne), Clermont-Ferrand, France
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10
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Beijers RJHCG, Gosker HR, Schols AMWJ. Resveratrol for patients with chronic obstructive pulmonary disease: hype or hope? Curr Opin Clin Nutr Metab Care 2018; 21:138-144. [PMID: 29200030 PMCID: PMC5811233 DOI: 10.1097/mco.0000000000000444] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PURPOSE OF REVIEW Chronic obstructive pulmonary disease (COPD) is a progressive lung disease with a high prevalence of extrapulmonary manifestations and, frequently, cardiovascular comorbidity. Resveratrol is a food-derived compound with anti-inflammatory, antioxidant, metabolic and cardioprotective potential. Therefore, resveratrol might improve the pulmonary as well as extrapulmonary pathology in COPD. In this review, we will evaluate knowledge on the effects of resveratrol on lung injury, muscle metabolism and cardiovascular risk profile and discuss if resveratrol is a hype or hope for patients with COPD. RECENT FINDINGS Experimental models of COPD consistently show decreased inflammation and oxidative stress in the lungs after resveratrol treatment. These beneficial anti-inflammatory and antioxidant properties of resveratrol can indirectly also improve both skeletal and respiratory muscle impairment in COPD. Recent clinical studies in non-COPD populations show improved mitochondrial oxidative metabolism after resveratrol treatment, which could be beneficial for both lung and muscle impairment in COPD. Moreover, preclinical studies suggest cardioprotective effects of resveratrol but results of clinical studies are inconclusive. SUMMARY Resveratrol might be an interesting therapeutic candidate to counteract lung and muscle impairments characteristic to COPD. However, there is no convincing evidence that resveratrol will significantly decrease the cardiovascular risk in patients with COPD.
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Affiliation(s)
- Rosanne J H C G Beijers
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
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11
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Zhang JQ, Long XY, Xie Y, Zhao ZH, Fang LZ, Liu L, Fu WP, Shu JK, Wu JH, Dai LM. Relationship between PPARα mRNA expression and mitochondrial respiratory function and ultrastructure of the skeletal muscle of patients with COPD. Bioengineered 2017; 8:723-731. [PMID: 28708015 DOI: 10.1080/21655979.2017.1346757] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Peripheral muscle dysfunction is an important complication in patients with chronic obstructive pulmonary disease (COPD). The objective of this study was to explore the relationship between the levels of peroxisome proliferator-activated receptor α (PPARα) mRNA expression and the respiratory function and ultrastructure of mitochondria in the vastus lateralis of patients with COPD. Vastus lateralis biopsies were performed on 14 patients with COPD and 6 control subjects with normal lung function. PPARα mRNA levels in the muscle tissue were detected by real-time PCR. A Clark oxygen electrode was used to assess mitochondrial respiratory function. Mitochondrial number, fractional area in skeletal muscle cross-sections, and Z-line width were observed via transmission electron microscopy. The PPARα mRNA expression was significantly lower in COPD patients with low body mass index (BMIL) than in both COPD patients with normal body mass index (BMIN) and controls. Mitochondrial respiratory function (assessed by respiratory control ratio) was impaired in COPD patients, particularly in BMIL. Compared with that in the control group, mitochondrial number and fractional area were lower in the BMIL group, but were maintained in the BMIN group. Further, the Z-line became narrow in the BMIL group. PPARα mRNA expression was positively related to mitochondrial respiratory function and volume density. In COPD patients with BMIN, mitochondria volume density was maintained, while respiratory function decreased, whereas both volume density and respiratory function decreased in COPD patients with BMIL. PPARα mRNA expression levels are associated with decreased mitochondrial respiratory function and volume density, which may contribute to muscle dysfunction in COPD patients.
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Affiliation(s)
- Jian-Qing Zhang
- a Department of Respiratory Critical Care Medicine , the First Affiliated Hospital of Kunming Medical University , Kunming , China
| | - Xiang-Yu Long
- a Department of Respiratory Critical Care Medicine , the First Affiliated Hospital of Kunming Medical University , Kunming , China
| | - Yu Xie
- b Department of hematology , the First Affiliated Hospital of Kunming Medical University , Kunming , China
| | - Zhi-Huan Zhao
- a Department of Respiratory Critical Care Medicine , the First Affiliated Hospital of Kunming Medical University , Kunming , China
| | - Li-Zhou Fang
- a Department of Respiratory Critical Care Medicine , the First Affiliated Hospital of Kunming Medical University , Kunming , China
| | - Ling Liu
- a Department of Respiratory Critical Care Medicine , the First Affiliated Hospital of Kunming Medical University , Kunming , China
| | - Wei-Ping Fu
- a Department of Respiratory Critical Care Medicine , the First Affiliated Hospital of Kunming Medical University , Kunming , China
| | - Jing-Kui Shu
- a Department of Respiratory Critical Care Medicine , the First Affiliated Hospital of Kunming Medical University , Kunming , China
| | - Jiang-Hai Wu
- a Department of Respiratory Critical Care Medicine , the First Affiliated Hospital of Kunming Medical University , Kunming , China
| | - Lu-Ming Dai
- a Department of Respiratory Critical Care Medicine , the First Affiliated Hospital of Kunming Medical University , Kunming , China
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12
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Yin X, Tang Y, Li J, Dzuricky AT, Pu C, Fu F, Wang B. Genetic ablation of P65 subunit of NF‐κB in
mdx
mice to improve muscle physiological function. Muscle Nerve 2017; 56:759-767. [DOI: 10.1002/mus.25517] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 12/07/2016] [Accepted: 12/09/2016] [Indexed: 01/05/2023]
Affiliation(s)
- Xi Yin
- Department of Orthopaedic SurgeryUniversity of PittsburghSuite 216, Bridgeside Point II, 450 Technology Drive, Pittsburgh Pennsylvania 15219 USA
- Department of Geriatric NeurologyChinese PLA General HospitalBeijing China
| | - Ying Tang
- Department of Orthopaedic SurgeryUniversity of PittsburghSuite 216, Bridgeside Point II, 450 Technology Drive, Pittsburgh Pennsylvania 15219 USA
| | - Jian Li
- Department of Orthopaedic SurgeryUniversity of PittsburghSuite 216, Bridgeside Point II, 450 Technology Drive, Pittsburgh Pennsylvania 15219 USA
- Beijing Friendship HospitalCapital Medical UniversityBeijing China
| | - Anna T. Dzuricky
- Department of Orthopaedic SurgeryUniversity of PittsburghSuite 216, Bridgeside Point II, 450 Technology Drive, Pittsburgh Pennsylvania 15219 USA
| | - Chuanqiang Pu
- Department of Geriatric NeurologyChinese PLA General HospitalBeijing China
| | - Freddie Fu
- Department of Orthopaedic SurgeryUniversity of PittsburghSuite 216, Bridgeside Point II, 450 Technology Drive, Pittsburgh Pennsylvania 15219 USA
| | - Bing Wang
- Department of Orthopaedic SurgeryUniversity of PittsburghSuite 216, Bridgeside Point II, 450 Technology Drive, Pittsburgh Pennsylvania 15219 USA
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13
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Leermakers PA, Gosker HR. Skeletal muscle mitophagy in chronic disease: implications for muscle oxidative capacity? Curr Opin Clin Nutr Metab Care 2016; 19:427-433. [PMID: 27537277 DOI: 10.1097/mco.0000000000000319] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE OF REVIEW Loss of skeletal muscle oxidative capacity is a common feature of chronic diseases such as chronic obstructive pulmonary disease, type 2 diabetes, and congestive heart failure. It may lead to physical impairments and has been suggested to contribute to metabolic inflexibility-induced cardiometabolic risk. The mechanism underlying loss of muscle oxidative capacity is incompletely understood. This review discusses the role of mitophagy as a driving force behind the loss of skeletal muscle oxidative capacity in these patients. RECENT FINDINGS Mitophagy has been studied to a very limited extent in human skeletal muscle. There are, however, clear indications that disease-related factors, including hypoxia, systemic inflammation, muscle inactivity, and iron deficiency are able to induce mitophagy, and that these factors trigger mitophagy via different regulatory mechanisms. Although mitophagy may lead to mitochondrial loss, it is also required to maintain homeostasis through clearance of damaged mitochondria. SUMMARY Based on available evidence, we propose that enhanced mitophagy is involved in chronic disease-induced loss of muscle oxidative capacity. Clearly more research is required to confirm this role and to establish to what extent mitophagy is pathological or a part of physiological adaptation to maintain muscle health.
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Affiliation(s)
- Pieter A Leermakers
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
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14
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Tryon LD, Vainshtein A, Memme J, Crilly MJ, Hood DA. WITHDRAWN: Relationship between the regulation of muscle atrophy and mitochondrial turnover during chronic disuse. Integr Med Res 2016. [DOI: 10.1016/j.imr.2014.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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15
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Matsui S, Ogata Y. Effects of miR-223 on expression of IL-1β and IL-6 in human gingival fibroblasts. J Oral Sci 2016; 58:101-8. [DOI: 10.2334/josnusd.58.101] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Sari Matsui
- Department of Periodontology, Nihon University School of Dentistry at Matsudo
| | - Yorimasa Ogata
- Department of Periodontology, Nihon University School of Dentistry at Matsudo
- Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo
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16
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Schols AMWJ. The 2014 ESPEN Arvid Wretlind Lecture: Metabolism & nutrition: Shifting paradigms in COPD management. Clin Nutr 2015; 34:1074-9. [PMID: 26474814 DOI: 10.1016/j.clnu.2015.09.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 09/10/2015] [Indexed: 01/09/2023]
Abstract
COPD is a chronic disease of the lungs, but heterogeneous with respect to clinical manifestations and disease progression. This has consequences for health risk assessment, stratification and management. Heterogeneity can be driven by pulmonary events but also by systemic consequences (e.g. cachexia and muscle weakness) and co-morbidity (e.g. osteoporosis, diabetes and cardiovascular disease). This paper shows how a metabolic perspective on COPD has contributed significantly to understanding clinical heterogeneity and the need for a paradigm shift from reactive medicine towards predictive, preventive, personalized and participatory medicine. These insights have also lead to a paradigm shift in nutritional therapy for COPD from initial ignorance or focusing on putative adverse effects of carbohydrate overload on the ventilatory system to beneficial effects of nutritional intervention on body composition and physical functioning as integral part of disease management. The wider implications beyond COPD as disease have been as clinical model for translational cachexia research.
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Affiliation(s)
- Annemie M W J Schols
- NUTRIM School of Nutrition and Translational Research in Metabolism, Department of Respiratory Medicine, Maastricht University Medical Centre, PO Box 5800, 6202 AZ Maastricht, The Netherlands.
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Dun YL, Zhou XL, Guan HS, Yu GL, Li CX, Hu T, Zhao X, Cheng XL, He XX, Hao JJ. Low molecular weight guluronate prevents TNF-α-induced oxidative damage and mitochondrial dysfunction in C2C12 skeletal muscle cells. Food Funct 2015; 6:3056-64. [PMID: 26205038 DOI: 10.1039/c5fo00533g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Muscle wasting is associated with a variety of chronic or inflammatory disorders. Evidence suggests that inflammatory cytokines play a vital role in muscle inflammatory pathology and this may result in oxidative damage and mitochondrial dysfunction in skeletal muscle. In our study, we used microwave degradation to prepare a water-soluble low molecular weight guluronate (LMG) of 3000 Da from Fucus vesiculosus obtained from Canada, the Atlantic Ocean. We demonstrated the structural characteristics, using HPLC, FTIR and NMR of LMG and investigated its effects on oxidative damage and mitochondrial dysfunction in C2C12 skeletal muscle cells induced by tumor necrosis factor alpha (TNF-α), a cell inflammatory cytokine. The results indicated that LMG could alleviate mitochondrial reactive oxygen species (ROS) production, increase the activities of antioxidant enzymes (GSH and SOD), promote mitochondrial membrane potential (MMP) and upregulate the expression of mitochondrial respiratory chain protein in TNF-α-induced C2C12 cells. LMG supplement also increased the mitochondrial DNA copy number and mitochondrial biogenesis related genes in TNF-α-induced C2C12 cells. LMG may exert these protective effects through the nuclear factor kappa B (NF-κB) signaling pathway. These suggest that LMG is capable of protecting TNF-α-induced C2C12 cells against oxidative damage and mitochondrial dysfunction.
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Affiliation(s)
- Yun-lou Dun
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
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Abstract
Nutritional issues are increasingly recognised in the course of respiratory diseases, from primary prevention to advanced disease care. During the 2014 ERS International Congress in Munich, Germany, the topic was addressed in a Clinical Year in Review session. This review highlights new insights in generic and disease-specific nutritional issues from recently published peer-reviewed articles. The clinical relevance of obesity was highlighted in primary and secondary prevention across all respiratory diseases. Radiographic imaging was explored for characterisation of metabolic phenotypes as an integrated part of diagnostic work-up. Muscle regenerative defects and the autophagy-lysosome pathway were identified as new leads for combatting muscle wasting.
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Recent advances in mitochondrial turnover during chronic muscle disuse. Integr Med Res 2014; 3:161-171. [PMID: 28664093 PMCID: PMC5481769 DOI: 10.1016/j.imr.2014.09.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 08/06/2014] [Indexed: 12/21/2022] Open
Abstract
Chronic muscle disuse, such as that resulting from immobilization, denervation, or prolonged physical inactivity, produces atrophy and a loss of mitochondria, yet the molecular relationship between these events is not fully understood. In this review we attempt to identify the key regulatory steps mediating the loss of muscle mass and the decline in mitochondrial content and function. An understanding of common intracellular signaling pathways may provide much-needed insight into the possible therapeutic targets for treatments that will maintain aerobic energy metabolism and preserve muscle mass during disuse conditions.
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