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Song W, Yue Y, Zhang Q. Imbalance of gut microbiota is involved in the development of chronic obstructive pulmonary disease: A review. Biomed Pharmacother 2023; 165:115150. [PMID: 37429232 DOI: 10.1016/j.biopha.2023.115150] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 07/12/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a common chronic disease characterized by chronic airway inflammation and remodeling, which seriously endangers human health. Recent developments in genomics and metabolomics have revealed the roles of the gut microbiota and its metabolites in COPD. Dysbiosis of the gut microbiota directly increases gut permeability, thereby promoting the translocation of pathological bacteria. The gut microbiota and associated metabolites may influence the development and progression of COPD by modulating immunity and inflammation. Furthermore, the systemic hypoxia and oxidative stress that occur in COPD may also be involved in intestinal dysfunction. The cross-talk between the gut and lungs is known as the gut-lung axis; however, an overview of its mechanism is lacking. This review highlights the critical and complex interplay of gut microbiota and immune responses in the gut-lung axis, further explores possible links between the gut and lungs, and summarizes new interventions through diet, probiotics, vitamins, and fecal microbiota transplantation, which are critical to COPD.
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Affiliation(s)
- Wei Song
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, China
| | - Yuanyi Yue
- Department of Gastroenterology, Shengjing Hospital of China Medical University, China.
| | - Qiang Zhang
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, China.
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2
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A Comprehensive Analysis of Microflora and Metabolites in the Development of Ulcerative Colitis into Colorectal Cancer Based on the Lung–Gut Correlation Theory. Molecules 2022; 27:molecules27185838. [PMID: 36144573 PMCID: PMC9503129 DOI: 10.3390/molecules27185838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/01/2022] [Accepted: 09/05/2022] [Indexed: 12/04/2022] Open
Abstract
The lungs and large intestine can co-regulate inflammation and immunity through the lung–gut axis, in which the transportation of the gut microbiota and metabolites is the most important communication channel. In our previous study, not only did the composition of the gut microbiota and metabolites related to inflammation change significantly during the transition from ulcerative colitis (UC) to colorectal cancer (CRC), but the lung tissues also showed corresponding inflammatory changes, which indicated that gastrointestinal diseases can lead to pulmonary diseases. In order to elucidate the mechanisms of this lung–gut axis, metabolites in bronchoalveolar lavage fluid (BALF) and lung tissues were detected using UHPLC–Q-TOF-MS/MS technology, while microbiome characterization was performed in BALF using 16S rDNA sequencing. The levels of pulmonary metabolites changed greatly during the development of UC to CRC. Among these changes, the concentrations of linoleic acid and 7-hydroxy-3-oxocholic acid gradually increased during the development of UC to CRC. In addition, the composition of the pulmonary microbiota also changed significantly, with an increase in the Proteobacteria and an obvious decrease in the Firmicutes. These changes were consistent with our previous studies of the gut. Collectively, the microbiota and metabolites identified above might be the key markers related to lung and gut diseases, which can be used as an indication of the transition of diseases from the gut to the lung and provide a scientific basis for clinical treatment.
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Gr1+ myeloid-derived suppressor cells participate in the regulation of lung-gut axis during mouse emphysema model. Biosci Rep 2022; 42:231730. [PMID: 36052717 PMCID: PMC9508528 DOI: 10.1042/bsr20221041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 08/22/2022] [Accepted: 08/31/2022] [Indexed: 11/17/2022] Open
Abstract
Background: Chronic obstructive pulmonary disease (COPD) is often accompanied by intestinal symptoms. Myeloid-derived suppressor cells (MDSCs) possess immunosuppressive ability in cancer, chronic inflammation, and infection. The aim of this study was to verify the distribution of MDSCs in emphysema mouse model and participation in lung–gut cross-talk. Methods: Adult male C57BL/6 mice were exposed to cigarette smoke (CS) for 6 months or injected with porcine pancreas elastase to establish emphysema models. Flow cytometry and immunohistochemistry analysis revealed the distribution of MDSCs in tissues. The expression of inflammation and MDSCs-associated genes in the small intestine and colon were analyzed by real-time PCR. Results: The small intestine and colon of CS-induced emphysematous mice displayed pathological changes, CD4+/CD8+ T cells imbalance, and increased neutrophils, monocytes, and macrophages infiltration. A significant expansion of MDSCs could be seen in CS-affected respiratory and gastrointestinal tract. Importantly, higher expression of MDSCs-related effector molecules inducible nitric oxide synthase (INOS), NADPH oxidase 2 (NOX2), and arginase 1 (ARG-1) suggested the immunosuppressive effect of migrated MDSCs (P<0.05). Conclusion: These data provide evidence for lung–gut axis in emphysema model and the participants of MDSCs.
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Ancel J, Guecamburu M, Marques Da Silva V, Schilfarth P, Boyer L, Pilette C, Martin C, Devillier P, Berger P, Zysman M, Le Rouzic O, Gonzalez-Bermejo J, Degano B, Burgel PR, Ahmed E, Roche N, Deslee G. [Take-home messages from the COPD 2021 biennial of the French Society of Respiratory Diseases. Understanding to so as to better innovate]. Rev Mal Respir 2022; 39:427-441. [PMID: 35568574 DOI: 10.1016/j.rmr.2022.03.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 03/23/2022] [Indexed: 02/07/2023]
Abstract
INTRODUCTION The first COPD biennial organized by the French Society of Respiratory Diseases (SPLF) took place on 17 December 2021. STATE OF THE ART The objective of the biennial was to discuss current knowledge regarding COPD pathophysiology, current treatments, research development, and future therapeutic approaches. PERSPECTIVES The different lecturers laid emphasis on the complexity of pathophysiologic mechanisms including bronchial, bronchiolar and parenchymal alterations, and also dwelt on the role of microbiota composition in COPD pathenogenesis. They pointed out that addition to inhaled treatments, ventilatory support and endoscopic approaches have been increasingly optimized. The development of new therapeutic pathways such as biotherapy and cell therapy (stem cells…) call for further exploration. CONCLUSIONS The dynamism of COPD research was repeatedly underlined, and needs to be further reinforced, the objective being to "understand so as to better innovate" so as to develop effective new strategies for treatment and management of COPD.
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Affiliation(s)
- J Ancel
- Inserm UMRS-1250, service de pneumologie, université Reims Champagne Ardenne, hôpital Maison Blanche, Reims, France
| | - M Guecamburu
- Service des maladies respiratoires, hôpital du Haut-Lévêque, CHU de Bordeaux, Bordeaux, France
| | - V Marques Da Silva
- Inserm U955, FHU SENEC, université Paris-Est Créteil, institut Mondor de recherche biomédicale, équipe GEIC2O, Créteil, France
| | - P Schilfarth
- Service des maladies respiratoires, hôpital du Haut-Lévêque, CHU de Bordeaux, Bordeaux, France; Inserm U1045, centre de recherche cardio-thoracique de Bordeaux, Pessac, France
| | - L Boyer
- Département de physiologie-explorations fonctionnelles, université Paris-Est, hôpital Henri-Mondor, AP-HP, UMR S955, FHU SENEC, UPEC, Créteil, France
| | - C Pilette
- Département de pneumologie, université catholique de Louvain, cliniques universitaires Saint-Luc et institut de recherche expérimentale et clinique, Bruxelles, Belgique
| | - C Martin
- Inserm U1016, service de pneumologie, AP-HP Paris, hôpital Cochin et institut Cochin, université de Paris, Paris, France
| | - P Devillier
- Département des maladies respiratoires, unité de recherche en pharmacologie respiratoire, VIM Suresnes (UMR 0892, université Paris-Saclay), hôpital Foch, Suresnes, France
| | - P Berger
- Service d'exploration fonctionnelle respiratoire, département de pharmacologie, centre de recherche cardiothoracique, U1045, CIC 1401, Pessac, France
| | - M Zysman
- Service des maladies respiratoires, hôpital du Haut-Lévêque, CHU de Bordeaux, Bordeaux, France; Inserm U1045, centre de recherche cardio-thoracique de Bordeaux, Pessac, France
| | - O Le Rouzic
- Inserm, CIIL Center for infection and immunity of Lille, université de Lille, CHU de Lille, pneumologie et immuno-allergologie, Institut Pasteur de Lille, U1019 - UMR9017, Lille, France
| | - J Gonzalez-Bermejo
- Inserm, UMRS115 neurophysiologie respiratoire expérimentale et clinique, service de pneumologie, médecine intensive et réanimation (département R3S), Sorbonne université, groupe hospitalier universitaire AP-HP, Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - B Degano
- Inserm 1042, service de pneumologie physiologie, CHU de Grenoble, Grenoble, France
| | - P-R Burgel
- Inserm U1016, service de pneumologie, AP-HP Paris, hôpital Cochin et institut Cochin, université de Paris, Paris, France
| | - E Ahmed
- Département des maladies respiratoires, IRMB, université de Montpellier, CHU de Montpellier, Montpellier, France
| | - N Roche
- Inserm U1016, service de pneumologie, AP-HP Paris, hôpital Cochin et institut Cochin, université de Paris, Paris, France
| | - G Deslee
- Inserm UMRS-1250, service de pneumologie, université Reims Champagne Ardenne, hôpital Maison Blanche, Reims, France.
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5
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The therapeutic effect of Xuanbai Chengqi Decoction on chronic obstructive pulmonary disease with excessive heat in the lung and fu-organs based on gut and lung microbiota as well as metabolic profiles. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1198:123250. [DOI: 10.1016/j.jchromb.2022.123250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/03/2022] [Accepted: 04/07/2022] [Indexed: 12/29/2022]
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Dysbiosis and intestinal inflammation caused by Salmonella Typhimurium in mice can be alleviated by preadministration of a lytic phage. Microbiol Res 2022; 260:127020. [DOI: 10.1016/j.micres.2022.127020] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 03/24/2022] [Accepted: 03/31/2022] [Indexed: 01/21/2023]
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Karim A, Muhammad T, Ustrana S, Qaisar R. Intestinal permeability marker zonulin as a predictor of sarcopenia in chronic obstructive pulmonary disease. Respir Med 2021; 189:106662. [PMID: 34673346 DOI: 10.1016/j.rmed.2021.106662] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 10/06/2021] [Accepted: 10/11/2021] [Indexed: 12/14/2022]
Abstract
PURPOSE Sarcopenia or age-related muscle loss is a common finding in patients with chronic obstructive pulmonary disease (COPD) and may lead to functional compromise. The contribution of an increased gut permeability to muscle decline in COPD may be of primary relevance. We measured the plasma zonulin levels (a marker of intestinal permeability) as potential predictors of sarcopenia in COPD patients during pulmonary rehabilitation (PR). METHOD We recruited male, 56-73 years healthy controls and patients with COPD (N = 70-76/group) to measure plasma zonulin, handgrip strength (HGS), body composition and biochemical parameters. All measurements were performed before and one year following the PR. RESULTS COPD patients had elevated plasma zonulin levels at baseline (22.8% higher vs healthy controls, p < 0.05), which were partially reduced (12.1% reduction vs baseline, p < 0.05) with PR. PR also resulted in improved HGS (8.5% increase, p < 0.05) as well as plasma c-reactive protein (CRP) (11.1% reduction, p < 0.05) and 8-isoprostanes (22.1% reduction, p < 0.05) as markers of inflammation and oxidative stress, respectively. Simple regression analysis revealed dynamic correlations of the alterations in zonulin levels with HGS, CRP and 8-isoprostanes during PR (all p < 0.05). These changes were associated with a reduction in sarcopenia incidence following PR. CONCLUSION Altogether, increased intestinal permeability may contribute to muscle decline in COPD, which is partially restored by PR. Plasma zonulin may be a useful marker to evaluate sarcopenia phenotype in COPD.
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Affiliation(s)
- Asima Karim
- Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates; University of Health Sciences, Lahore, Pakistan
| | - Tahir Muhammad
- Department of Biochemistry, Gomal Medical College, Gomal University, Dera Ismail Khan, 30130, Pakistan
| | - Shahjahan Ustrana
- Department of Biochemistry, Gomal Medical College, Gomal University, Dera Ismail Khan, 30130, Pakistan
| | - Rizwan Qaisar
- Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates.
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Zhao YH, Zhang SW, Zhao HJ, Qin HY, Wu F, Zhang J, Zhang YQ, Liu XL, Liang S, Zhang H, Wu JD, Zhao ZY, Wang HZ, Shao M, Liu J, Dong JT, Zhang WJ. Gadolinium chloride pre-treatment reduces the inflammatory response and preserves intestinal barrier function in a rat model of sepsis. Exp Ther Med 2021; 22:1143. [PMID: 34504589 PMCID: PMC8393272 DOI: 10.3892/etm.2021.10577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 10/09/2019] [Indexed: 11/12/2022] Open
Abstract
The inflammatory response is closely associated with sepsis occurrence and progression. Damage to the function of the intestinal mucosal barrier is considered to be the ῾initiation factor᾿ for the development of multiple organ dysfunction syndrome, which is the most severe progression of sepsis. The aim of the present study was to investigate whether gadolinium chloride (GdCl3) could alleviate the systemic inflammatory response and protect the function of the intestinal mucosal barrier in a rat model of sepsis. The mechanism underlying this protective effect was also explored. Sprague-Dawley rats were divided into four groups: Sham, sham + GdCl3, cecal ligation and puncture (CLP; a model of sepsis) and CLP + GdCl3. In each group, blood was collected from the abdominal aorta, and intestinal tissue was collected after 6, 12 and 24 h of successful modeling. Levels of tumor necrosis factor-α, interleukin (IL)-6 and IL-1β were determined using ELISA. Western blot analysis was used to determine levels of occludin, tight junction protein ZO-1 (ZO-1), myosin light chain kinase 3 (MLCK), NF-κB and caspase-3 in intestinal tissues. Hematoxylin-eosin staining was used to observe the degree of damage to intestinal tissue. The results indicated that in CLP sepsis model rats treated with GdCl3, the release of systemic and intestinal pro-inflammatory factors was reduced and tissue damage was alleviated when compared with untreated CLP rats. Additionally, the expression of occludin and ZO-1 was increased, while that of NF-κB, MLCK, and caspase-3 was reduced in the CLP + GdCl3 rats compared with the CLP rats. GdCl3 may alleviate systemic and intestinal inflammatory responses and reduce the expression of MLCK through inhibition of the activation of NF-kB. The results of the present study also indicated that GdCl3 promoted the expression of occludin and ZO-1. GdCl3 was also demonstrated to reduce cell apoptosis through the inhibition of caspase-3 expression.
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Affiliation(s)
- Yan Heng Zhao
- Department of Critical Care Medicine, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, Xinjiang 832002, P.R. China
| | - Shun Wen Zhang
- Department of Thoracic Surgery, The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Hai Jun Zhao
- Department of Critical Care Medicine, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, Xinjiang 832002, P.R. China
| | - Hui Yuan Qin
- Department of Thoracic Surgery, The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Fang Wu
- Department of Pathophysiology, Shihezi University School of Medicine, The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang 832002, P.R. China
| | - Jie Zhang
- Department of Critical Care Medicine, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, Xinjiang 832002, P.R. China
| | - Yu Qing Zhang
- Department of Critical Care Medicine, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, Xinjiang 832002, P.R. China
| | - Xiao Ling Liu
- Department of Pathophysiology, Shihezi University School of Medicine, The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang 832002, P.R. China
| | - Su Liang
- Department of Critical Care Medicine, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, Xinjiang 832002, P.R. China
| | - Hui Zhang
- Department of Pathophysiology, Shihezi University School of Medicine, The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang 832002, P.R. China
| | - Jiang Dong Wu
- Department of Pathophysiology, Shihezi University School of Medicine, The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang 832002, P.R. China
| | - Zheng Yong Zhao
- Department of Pathophysiology, Shihezi University School of Medicine, The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang 832002, P.R. China
| | - Hong Zhou Wang
- Department of Pathophysiology, Shihezi University School of Medicine, The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang 832002, P.R. China
| | - Meng Shao
- Department of Pathophysiology, Shihezi University School of Medicine, The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang 832002, P.R. China
| | - Jing Liu
- Department of Pathophysiology, Shihezi University School of Medicine, The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang 832002, P.R. China
| | - Jiang Tao Dong
- Department of Critical Care Medicine, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, Xinjiang 832002, P.R. China
| | - Wan Jiang Zhang
- Department of Pathophysiology, Shihezi University School of Medicine, The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang 832002, P.R. China
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Cruthirds CL, Deutz NEP, Ligthart-Melis GC, Simbo SY, Engelen MPKJ. Walking exercise alters protein digestion, amino acid absorption, and whole body protein kinetics in older adults with and without COPD. J Appl Physiol (1985) 2021; 130:435-444. [DOI: 10.1152/japplphysiol.00783.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Gut function is disturbed in older adults with COPD. As exercise is the cornerstone of pulmonary rehabilitation in COPD, knowledge of the response of the gut to aerobic exercise is of importance.
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Affiliation(s)
- Clayton L. Cruthirds
- Department of Health and Kinesiology, Center for Translational Research in Aging & Longevity, Texas A&M University, College Station, Texas
| | - Nicolaas E. P. Deutz
- Department of Health and Kinesiology, Center for Translational Research in Aging & Longevity, Texas A&M University, College Station, Texas
| | - Gerdien C. Ligthart-Melis
- Department of Health and Kinesiology, Center for Translational Research in Aging & Longevity, Texas A&M University, College Station, Texas
| | - Sunday Y. Simbo
- Department of Health and Kinesiology, Center for Translational Research in Aging & Longevity, Texas A&M University, College Station, Texas
| | - Mariëlle P. K. J. Engelen
- Department of Health and Kinesiology, Center for Translational Research in Aging & Longevity, Texas A&M University, College Station, Texas
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10
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Zhou A, Lei Y, Tang L, Hu S, Yang M, Wu L, Yang S, Tang B. Gut Microbiota: the Emerging Link to Lung Homeostasis and Disease. J Bacteriol 2021; 203:e00454-20. [PMID: 33077630 PMCID: PMC7847545 DOI: 10.1128/jb.00454-20] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The gut microbiota plays a crucial role in the development of the immune system and confers benefits or disease susceptibility to the host. Emerging studies have indicated the gut microbiota could affect pulmonary health and disease through cross talk between the gut microbiota and the lungs. Gut microbiota dysbiosis could lead to acute or chronic lung disease, such as asthma, tuberculosis, and lung cancer. In addition, the composition of the gut microbiota may be associated with different lung diseases, the prevalence of which also varies by age. Modulation of the gut microbiota through short-chain fatty acids, probiotics, and micronutrients may present potential therapeutic strategies to protect against lung diseases. In this review, we will provide an overview of the cross-talk between the gut microbiota and the lungs, as well as elucidate the underlying pathogenesis and/or potential therapeutic strategies of some lung diseases from the point of view of the gut microbiota.
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Affiliation(s)
- An Zhou
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Yuanyuan Lei
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Li Tang
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Shiping Hu
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Min Yang
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Lingyi Wu
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Shiming Yang
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Bo Tang
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing, China
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11
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Zhang D, Li S, Wang N, Tan HY, Zhang Z, Feng Y. The Cross-Talk Between Gut Microbiota and Lungs in Common Lung Diseases. Front Microbiol 2020; 11:301. [PMID: 32158441 PMCID: PMC7052046 DOI: 10.3389/fmicb.2020.00301] [Citation(s) in RCA: 218] [Impact Index Per Article: 54.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 02/10/2020] [Indexed: 12/12/2022] Open
Abstract
Emerging findings indicate there is a vital cross-talk between gut microbiota and the lungs, which is known as gut-lung axis. The gut disturbances in lung diseases including allergy, asthma, chronic obstructive pulmonary disease, cystic fibrosis and lung cancer were observed by extensive studies. Investigating how gut microbiota impact other distant organs is of great interest in recent years. Although it has not been fully understood whether the disturbance is the cause or effect of lung diseases, alterations in the gut microbial species and metabolites have been linked to changes in immune responses and inflammation as well as the disease development in the lungs. In this article, we systemically review the role and mechanisms underlying the changes in the constituent of gut microbiota and metabolites in lung diseases. In particular, the roles of gut-lung axis in mediating immune responses and reshaping inflammation are highlighted. Furthermore, we discuss the potential of strategies to manipulate the gut microbiota and metabolites as the therapeutic approach for lung diseases.
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Affiliation(s)
- Dapeng Zhang
- First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Sha Li
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Ning Wang
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Hor-Yue Tan
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Zhimin Zhang
- First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yibin Feng
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
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12
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Yao Y, Gu Y, Yang M, Cao D, Wu F. The Gene Expression Biomarkers for Chronic Obstructive Pulmonary Disease and Interstitial Lung Disease. Front Genet 2019; 10:1154. [PMID: 31824564 PMCID: PMC6879656 DOI: 10.3389/fgene.2019.01154] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 10/22/2019] [Indexed: 01/01/2023] Open
Abstract
COPD (chronic obstructive pulmonary disease) and ILD (interstitial lung disease) are two common respiratory diseases. They share similar clinical traits but require different therapeutic treatments. Identifying the biomarkers that are differentially expressed between them will not only help the diagnosis of COPD and ILD, but also provide candidate drug targets that may facilitate the development of new treatment for COPD and ILD. Due to the irreversible complex pathological changes of COPD, there are very limited therapeutic options for COPD patients. In this study, we analyzed the gene expression profiles of two datasets: one training dataset that includes 144 COPD patients and 194 ILD patients, and one test dataset that includes 75 COPD patients and 61 ILD patients. Advanced feature selection methods, mRMR (minimal Redundancy Maximal Relevance) and incremental feature selection (IFS), were applied to identify the 38-gene biomarker. An SVM (support vector machine) classifier was built based on the 38-gene biomarker. Its accuracy, sensitivity, and specificity on training dataset evaluated by leave one out cross-validation were 0.905, 0.896, and 0.912, respectively. And on independent test dataset, the accuracy, sensitivity, and specificity on were as great as and were 0.904, 0.933, and 0.869, respectively. The biological function analysis of the 38 genes indicated that many of them can be potential treatment targets that may benefit COPD and ILD patients.
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Affiliation(s)
- Yangwei Yao
- Department of Pulmonary and Critical Care Medicine, The Second Hospital of Jiaxing, Jiaxing, China
| | - Yangyang Gu
- Department of Pulmonary and Critical Care Medicine, The Second Hospital of Jiaxing, Jiaxing, China
| | - Meng Yang
- Department of Pulmonary and Critical Care Medicine, The Second Hospital of Jiaxing, Jiaxing, China
| | - Dakui Cao
- Department of Pulmonary and Critical Care Medicine, The Second Hospital of Jiaxing, Jiaxing, China
| | - Fengjie Wu
- Department of Pulmonary and Critical Care Medicine, The Second Hospital of Jiaxing, Jiaxing, China
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13
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Guo Y, Li H, Liu Z, Li C, Chen Y, Jiang C, Yu Y, Tian Z. Impaired intestinal barrier function in a mouse model of hyperuricemia. Mol Med Rep 2019; 20:3292-3300. [PMID: 31432190 PMCID: PMC6755192 DOI: 10.3892/mmr.2019.10586] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 07/30/2019] [Indexed: 12/11/2022] Open
Abstract
Previous studies have demonstrated the effects of hyperuricemia on the damage to target organs, including the kidneys, joints and the heart. However, it is unclear whether hyperuricemia results in damage to the intestines. The aim of the present study was to investigate intestinal barrier dysfunction in a mouse model of hyperuricemia constructed by knocking out the urate oxidase (Uox) gene. The morphology of the intestine was assessed via hematoxylin and eosin, and alcian blue staining. The serum and intestinal tissue levels of uric acid, tumor necrosis factor (TNF)‑α and interleukin (IL)‑6, in addition to the presence of uremic toxins in the serum, were assessed. The levels of diamine oxidase (DAO), D‑lactate (D‑LAC) and endotoxins in the serum, which are markers of the intestinal permeability, were measured using ELISA. The expression of the intestinal tight junction proteins zona occludens‑1 (ZO‑1) and occludin were detected by reverse transcription‑quantitative polymerase chain reaction, western blotting and immunohistochemical analysis. The Uox‑knockout mice spontaneously developed hyperuricemia. Histopathological analysis indicated notable intestinal defects including sparse villi, mucosal edema and a declining mucus layer in hyperuricemic mice. The expression levels of ZO‑1 and occludin in the intestines were downregulated, and the serum levels of DAO, D‑LAC and endotoxins were higher in the hyperuricemic mice, compared with control mice. The serum and intestinal tissue levels of IL‑6 and TNF‑α were significantly increased. Additionally, the expression levels of the serum uremic toxins, serum creatinine, blood urea nitrogen were significantly increased in hyperuricemic mice compared with the control mice, while only a marked increase in indoxyl sulfate (IS) and p‑cresol sulfate was reported. Collectively, the results of the present study suggested that intestinal barrier dysfunction and subsequent enhanced intestinal permeability may occur as a result of hyperuricemia in mice. Furthermore, we proposed that the loss of intestinal epithelium barrier function may be associated with uric acid‑induced inflammatory responses; however, further investigation is required.
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Affiliation(s)
- Yingjie Guo
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Hailong Li
- Institute of Metabolic Diseases, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Zhen Liu
- Institute of Metabolic Diseases, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Changgui Li
- Institute of Metabolic Diseases, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Yunqing Chen
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Chen Jiang
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Yanan Yu
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Zibin Tian
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, P.R. China
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14
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Vignal C, Pichavant M, Alleman LY, Djouina M, Dingreville F, Perdrix E, Waxin C, Ouali Alami A, Gower-Rousseau C, Desreumaux P, Body-Malapel M. Effects of urban coarse particles inhalation on oxidative and inflammatory parameters in the mouse lung and colon. Part Fibre Toxicol 2017; 14:46. [PMID: 29166940 PMCID: PMC5700563 DOI: 10.1186/s12989-017-0227-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 11/10/2017] [Indexed: 12/15/2022] Open
Abstract
Background Air pollution is a recognized aggravating factor for pulmonary diseases and has notably deleterious effects on asthma, bronchitis and pneumonia. Recent studies suggest that air pollution may also cause adverse effects in the gastrointestinal tract. Accumulating experimental evidence shows that immune responses in the pulmonary and intestinal mucosae are closely interrelated, and that gut-lung crosstalk controls pathophysiological processes such as responses to cigarette smoke and influenza virus infection. Our first aim was to collect urban coarse particulate matter (PM) and to characterize them for elemental content, gastric bioaccessibility, and oxidative potential; our second aim was to determine the short-term effects of urban coarse PM inhalation on pulmonary and colonic mucosae in mice, and to test the hypothesis that the well-known antioxidant N-acetyl-L-cysteine (NAC) reverses the effects of PM inhalation. Results The collected PM had classical features of urban particles and possessed oxidative potential partly attributable to their metal fraction. Bioaccessibility study confirmed the high solubility of some metals at the gastric level. Male mice were exposed to urban coarse PM in a ventilated inhalation chamber for 15 days at a concentration relevant to episodic elevation peak of air pollution. Coarse PM inhalation induced systemic oxidative stress, recruited immune cells to the lung, and increased cytokine levels in the lung and colon. Concomitant oral administration of NAC reversed all the observed effects relative to the inhalation of coarse PM. Conclusions Coarse PM-induced low-grade inflammation in the lung and colon is mediated by oxidative stress and deserves more investigation as potentiating factor for inflammatory diseases. Electronic supplementary material The online version of this article (10.1186/s12989-017-0227-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Cécile Vignal
- Inserm, CHU Lille, U995-LIRIC-Lille Inflammation Research International Center, Univ. Lille, F-59000, Lille, France
| | - Muriel Pichavant
- Inserm U1019, CNRS UMR 8204, Institut Pasteur de Lille- CIIL - Center for Infection and Immunity of Lille, Univ. Lille, F-59000, Lille, France
| | - Laurent Y Alleman
- SAGE - Département Sciences de l'Atmosphère et Génie de l'Environnement, IMT Lille Douai, Univ. Lille, 59000, Lille, France
| | - Madjid Djouina
- Inserm, CHU Lille, U995-LIRIC-Lille Inflammation Research International Center, Univ. Lille, F-59000, Lille, France
| | - Florian Dingreville
- Inserm, CHU Lille, U995-LIRIC-Lille Inflammation Research International Center, Univ. Lille, F-59000, Lille, France
| | - Esperanza Perdrix
- SAGE - Département Sciences de l'Atmosphère et Génie de l'Environnement, IMT Lille Douai, Univ. Lille, 59000, Lille, France
| | - Christophe Waxin
- Inserm, CHU Lille, U995-LIRIC-Lille Inflammation Research International Center, Univ. Lille, F-59000, Lille, France
| | - Adil Ouali Alami
- Inserm U1019, CNRS UMR 8204, Institut Pasteur de Lille- CIIL - Center for Infection and Immunity of Lille, Univ. Lille, F-59000, Lille, France
| | - Corinne Gower-Rousseau
- Inserm, CHU Lille, U995-LIRIC-Lille Inflammation Research International Center, Univ. Lille, F-59000, Lille, France
| | - Pierre Desreumaux
- Inserm, CHU Lille, U995-LIRIC-Lille Inflammation Research International Center, Univ. Lille, F-59000, Lille, France
| | - Mathilde Body-Malapel
- Inserm, CHU Lille, U995-LIRIC-Lille Inflammation Research International Center, Univ. Lille, F-59000, Lille, France.
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