1
|
Russo C, Colaianni V, Ielo G, Valle MS, Spicuzza L, Malaguarnera L. Impact of Lung Microbiota on COPD. Biomedicines 2022; 10:biomedicines10061337. [PMID: 35740358 PMCID: PMC9219765 DOI: 10.3390/biomedicines10061337] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 05/28/2022] [Accepted: 06/02/2022] [Indexed: 11/16/2022] Open
Abstract
There is a fine balance in maintaining healthy microbiota composition, and its alterations due to genetic, lifestyle, and environmental factors can lead to the onset of respiratory dysfunctions such as chronic obstructive pulmonary disease (COPD). The relationship between lung microbiota and COPD is currently under study. Little is known about the role of the microbiota in patients with stable or exacerbated COPD. Inflammation in COPD disorders appears to be characterised by dysbiosis, reduced lung activity, and an imbalance between the innate and adaptive immune systems. Lung microbiota intervention could ameliorate these disorders. The microbiota’s anti-inflammatory action could be decisive in the onset of pathologies. In this review, we highlight the feedback loop between microbiota dysfunction, immune response, inflammation, and lung damage in relation to COPD status in order to encourage the development of innovative therapeutic goals for the prevention and management of this disease.
Collapse
Affiliation(s)
- Cristina Russo
- Section of Pathology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (C.R.); (V.C.)
| | - Valeria Colaianni
- Section of Pathology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (C.R.); (V.C.)
| | - Giuseppe Ielo
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy; (G.I.); (L.S.)
| | - Maria Stella Valle
- Laboratory of Neuro-Biomechanics, Section of Physiology, Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, 95123 Catania, Italy
- Correspondence: (M.S.V.); (L.M.)
| | - Lucia Spicuzza
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy; (G.I.); (L.S.)
| | - Lucia Malaguarnera
- Section of Pathology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (C.R.); (V.C.)
- Correspondence: (M.S.V.); (L.M.)
| |
Collapse
|
2
|
Fomite Transmission Follows Invasion Ecology Principles. mSystems 2022; 7:e0021122. [PMID: 35502902 PMCID: PMC9238404 DOI: 10.1128/msystems.00211-22] [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] [Indexed: 12/02/2022] Open
Abstract
The invasion ecology principles illustrated in many ecosystems have not yet been explored in the context of fomite transmission. We hypothesized that invaders in fomite transmission are trackable, are neutrally distributed between hands and environmental surfaces, and exhibit a proximity effect. To test this hypothesis, a surrogate invader, Lactobacillus delbrueckii subsp. bulgaricus, was spread by a root carrier in an office housing more than 20 participants undertaking normal activities, and the microbiotas on skin and environmental surfaces were analyzed before and after invasion. First, we found that the invader was trackable. Its identity and emission source could be determined using microbial-interaction networks, and the root carrier could be identified using a rank analysis. Without prior information, L. bulgaricus could be identified as the invader emitted from a source that exclusively contained the invader, and the probable root carrier could be located. In addition to the single-taxon invasion by L. bulgaricus, multiple-taxon invasion was observed, as genera from sputum/saliva exhibited co-occurrence relationships on skin and environmental surfaces. Second, the invader had a below-neutral distribution in a neutral community model, suggesting that hands accrued heavier invader contamination than environmental surfaces. Third, a proximity effect was observed on a surface touch network. Invader contamination on surfaces decreased with increasing geodesic distance from the hands of the carrier, indicating that the carrier’s touching behaviors were the main driver of fomite transmission. Taken together, these results demonstrate the invasion ecology principles in fomite transmission and provide a general basis for the management of ecological fomite transmission. IMPORTANCE Fomite transmission contributes to the spread of many infectious diseases. However, pathogens in fomite transmission typically are either investigated individually without considering the context of native microbiotas or investigated in a nondiscriminatory way from the dispersal of microbiotas. In this study, we adopted an invasion ecology framework in which we considered pathogens as invaders, the surface environment as an ecosystem, and human behaviors as the driver of microbial dispersal. With this approach, we assessed the ability of quantitative ecological theories to track and forecast pathogen movements in fomite transmission. By uncovering the relationships between the invader and native microbiotas and between human behaviors and invader/microbiota dispersal, we demonstrated that fomite transmission follows idiosyncratic invasion ecology principles. Our findings suggest that attempts to manage fomite transmission for public health purposes should focus on the microbial communities and anthropogenic factors involved, in addition to the pathogens.
Collapse
|
3
|
Muggeo A, Perotin JM, Brisebarre A, Dury S, Dormoy V, Launois C, Ancel J, Mulette P, de Champs C, Deslée G, Guillard T. Extended Bacteria Culture-Based Clustering Identifies a Phenotype Associating Increased Cough and Enterobacterales in Stable Chronic Obstructive Pulmonary Disease. Front Microbiol 2022; 12:781797. [PMID: 34970242 PMCID: PMC8712763 DOI: 10.3389/fmicb.2021.781797] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 11/11/2021] [Indexed: 11/13/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory lung disease characterized by airflow limitation. This chronic respiratory disease represents the third leading cause of death worldwide. Alteration of the airway microbiota has been reported to be associated with exacerbation frequency in COPD, but its role on the symptoms in patients at stable state is still incompletely described. This study aimed to determine whether bacteria isolated in sputum can be associated with the clinical features of COPD patients within stable state. Our study highlights, for the first time, that altered microbiota with Enterobacterales is associated with pejorative clinical symptoms in stable COPD patients. The airway microbiota of 38 patients was analyzed using an extended culture approach and mass spectrometry identification. Cluster analysis by principal coordinate analysis of the bacterial communities showed that the patients could be classified into three distinct clusters in our cohort. The clusters showed no differences in proportions of the phylum, but one of them was associated with a high prevalence of Enterobacterales (71.4% in cluster 1 vs. 0% in cluster 3), loss of microbiota diversity, and higher bacterial load (107 vs. 105 CFU/ml, respectively) and characterized by predominant cough and impact on mental health. These novel findings, supported by further studies, could lead to modifying the processing of COPD sputum in the everyday practice of clinical microbiology laboratories.
Collapse
Affiliation(s)
- Anaëlle Muggeo
- Inserm UMR-S 1250 Pulmonary pathologies and cellular plasticity (P3Cell), Reims-Champagne-Ardenne University, SFR CAP Santé, Reims, France.,Laboratory of Bacteriology-Virology-Hospital Hygiene-Parasitology-Mycology, Reims University Hospital, Reims, France
| | - Jeanne-Marie Perotin
- Inserm UMR-S 1250 Pulmonary pathologies and cellular plasticity (P3Cell), Reims-Champagne-Ardenne University, SFR CAP Santé, Reims, France.,Department of Respiratory Diseases, Reims University Hospital, Reims, France
| | - Audrey Brisebarre
- Inserm UMR-S 1250 Pulmonary pathologies and cellular plasticity (P3Cell), Reims-Champagne-Ardenne University, SFR CAP Santé, Reims, France
| | - Sandra Dury
- Department of Respiratory Diseases, Reims University Hospital, Reims, France
| | - Valérian Dormoy
- Inserm UMR-S 1250 Pulmonary pathologies and cellular plasticity (P3Cell), Reims-Champagne-Ardenne University, SFR CAP Santé, Reims, France
| | - Claire Launois
- Department of Respiratory Diseases, Reims University Hospital, Reims, France
| | - Julien Ancel
- Inserm UMR-S 1250 Pulmonary pathologies and cellular plasticity (P3Cell), Reims-Champagne-Ardenne University, SFR CAP Santé, Reims, France.,Department of Respiratory Diseases, Reims University Hospital, Reims, France
| | - Pauline Mulette
- Inserm UMR-S 1250 Pulmonary pathologies and cellular plasticity (P3Cell), Reims-Champagne-Ardenne University, SFR CAP Santé, Reims, France.,Department of Respiratory Diseases, Reims University Hospital, Reims, France
| | - Christophe de Champs
- Inserm UMR-S 1250 Pulmonary pathologies and cellular plasticity (P3Cell), Reims-Champagne-Ardenne University, SFR CAP Santé, Reims, France.,Laboratory of Bacteriology-Virology-Hospital Hygiene-Parasitology-Mycology, Reims University Hospital, Reims, France
| | - Gaëtan Deslée
- Inserm UMR-S 1250 Pulmonary pathologies and cellular plasticity (P3Cell), Reims-Champagne-Ardenne University, SFR CAP Santé, Reims, France.,Department of Respiratory Diseases, Reims University Hospital, Reims, France
| | - Thomas Guillard
- Inserm UMR-S 1250 Pulmonary pathologies and cellular plasticity (P3Cell), Reims-Champagne-Ardenne University, SFR CAP Santé, Reims, France.,Laboratory of Bacteriology-Virology-Hospital Hygiene-Parasitology-Mycology, Reims University Hospital, Reims, France
| |
Collapse
|
4
|
Disruptions in oral and nasal microbiota in biomass and tobacco smoke associated chronic obstructive pulmonary disease. Arch Microbiol 2021; 203:2087-2099. [PMID: 33598807 DOI: 10.1007/s00203-020-02155-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 11/17/2020] [Accepted: 12/03/2020] [Indexed: 02/01/2023]
Abstract
Chronic exposures to tobacco and biomass smoke are the most prevalent risk factors for COPD development. Although microbial diversity in tobacco smoke-associated COPD (TSCOPD) has been investigated, microbiota in biomass smoke-associated COPD (BMSCOPD) is still unexplored. We aimed to compare the nasal and oral microbiota between healthy, TSCOPD, and BMSCOPD subjects from a rural population in India. Nasal swabs and oral washings were collected from healthy (n = 10), TSCOPD (n = 11), and BMSCOPD (n = 10) subjects. The downstream analysis was performed using QIIME pipeline (v1.9). In nasal and oral microbiota no overall differences were noted, but there were key taxa that had differential abundance in either Healthy vs COPD and/or TSCOPD vs. BMSCOPD. Genera such as Actinomyces, Actinobacillus, Megasphaera, Selenomonas, and Corynebacterium were significantly higher in COPD subjects. This study suggests that microbial community undergoes dysbiosis which may further contribute to the progression of disease. Thus, it is important to identify etiological agents for such a polymicrobial alterations which contribute highly to the disease manifestation.
Collapse
|
5
|
Lin M, Li X, Wang J, Cheng C, Zhang T, Han X, Song Y, Wang Z, Wang S. Saliva Microbiome Changes in Patients With Periodontitis With and Without Chronic Obstructive Pulmonary Disease. Front Cell Infect Microbiol 2020; 10:124. [PMID: 32351901 PMCID: PMC7175749 DOI: 10.3389/fcimb.2020.00124] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 03/05/2020] [Indexed: 12/15/2022] Open
Abstract
Objective: The oral microbiota plays a key part in the initial colonization by pathogens and the chronic inflammatory reaction of the host. We measured variations in the salivary microbiota and evaluated their potential associations with periodontitis and chronic obstructive pulmonary disease (COPD). Methods: We investigated the salivary microbiota of patients with COPD and periodontitis (n = 21) compared with that in patients with periodontitis alone (n = 36) and with healthy controls (HCs; n = 14), using pyrosequencing of polymerase chain reaction-amplified 16s rRNA genes. Results: Bacterial richness and diversity were significantly higher in patients suffering from COPD, and the bacterial family Lachnospiraceae was observed frequently only among patients with COPD and periodontitis. Veillonella, Rothia, Actinomyces, and Fusobacterium were the core bacterial genera that showed significant differences among patients with coincident COPD and periodontitis, patients with periodontitis alone, and HCs (p < 0.05). Veillonella, Rothia, and Actinomyces were observed much more frequently in patients with COPD and periodontitis, compared with that in HCs. All tested populations were divided into subgroups based on sex, smoking, or periodontitis index. In the subgroup with a bleeding index >2, Rothia was significantly different in periodontitis with and without COPD groups compared with HCs. In the subgroup with a plaque index >2.5, Rothia and Veillonella showed significant differences in periodontitis with and without COPD groups compared with HCs. Conclusion: Variations in salivary microbiota may be associated with COPD and periodontitis.
Collapse
Affiliation(s)
- Mei Lin
- Department of Stomatology, Beijing Chao-Yang Hospital Affiliated to Capital Medical University, Beijing, China.,Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Xuefen Li
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
| | - Jitian Wang
- Department of Stomatology, Beijing Chao-Yang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Cheng Cheng
- Department of Stomatology, Beijing Chao-Yang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Tianyi Zhang
- School of Stomatology, Shanxi Medical University, Taiyuan, China
| | - Xiaozhe Han
- Department of Immunology and Infectious Disease, The Forsyth Institute, Cambridge, MA, United States
| | - Yiqing Song
- Department of Epidemiology, Fairbanks School of Public Health, Indiana University, Indianapolis, IN, United States
| | - Zuomin Wang
- Department of Stomatology, Beijing Chao-Yang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Songlin Wang
- Salivary Gland Disease Center and Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China.,Department of Biochemistry and Molecular Biology, School of Basic Medicine, Capital Medical University, Beijing, China
| |
Collapse
|
6
|
Li L, Wang F, Liu Y, Gu F. Intestinal microbiota dysbiosis in children with recurrent respiratory tract infections. Microb Pathog 2019; 136:103709. [PMID: 31494301 DOI: 10.1016/j.micpath.2019.103709] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 08/29/2019] [Accepted: 09/02/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND The impact of the gut microbiota on recurrent respiratory tract infection (RRTI) remains to be fully elucidated. METHODS To characterize the gut microbiota in patients with RRTI, fecal samples from 26 patients with RRTI and 23 healthy volunteers were profiled using the Illumina MiSeq platform. Beta diversity (Principal Component Analysis (PCA), Principal Co-ordinates Analysis (PCoA), Non-metric multidimensional scaling (NMDS)) analysis showed that the bacterial community structure segregated differently between the RRTI and control groups. RESULTS Results from alpha diversity analysis revealed lower microbiota diversity in samples from RRTI patients than in normal controls. Taxonomic analysis illustrated that the abundance of six phyla (Firmicutes, Proteobacteria, Bacteroidetes, Actinobacteria, Verrucomicrobia, Tenericutes) and four genera (Enterococcus, Faecalibacterium, Bifidobacterium, Eubacterium were significantly different between these two groups. In addition, Enterococcus (P < 0.001) was more enriched in the RRTI group, whereas the abundances of Eubacterium (P < 0.001), Faecalibacterium (0.01 < P < 0.05) and Bifidobacterium (0.01 < P < 0.05) were reduced in the RRTI group compared to those in the normal control group. The performance of the model was assessed using ROC analysis, and Enterococcus, Eubacterium and Bifidobacterium achieved AUC values of 0.860, 0.820, and 0.689, respectively. CONCLUSIONS These results provide fundamental evidence in support of intestinal microbiota dysbiosis in children with RRTI.
Collapse
Affiliation(s)
- Lei Li
- Department of Pediatrics, The Affiliated Hospital of Qingdao University of Shandong Province, Qingdao, China
| | - Fang Wang
- Department of Pediatrics, The Affiliated Hospital of Qingdao University of Shandong Province, Qingdao, China
| | - Yanni Liu
- Department of Obstetrics and Gynecology, Binzhou Medical University Hospital of Shandong Province, Binzhou, China
| | - Feng Gu
- Department of Pediatrics, The Affiliated Hospital of Qingdao University of Shandong Province, Qingdao, China.
| |
Collapse
|
7
|
López Caro JC, Santibáñez M, García Rivero JL, Villanueva M, Sainz J, González Astorqui P, Hierro M, Rodríguez Porres M, Paras Bravo P, Mira A, Rodriguez JC, Galiana A. Sputum Microbiome Dynamics in Chronic Obstructive Pulmonary Disease Patients during an Exacerbation Event and Post-Stabilization. Respiration 2019; 98:447-454. [PMID: 31437842 DOI: 10.1159/000501988] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 07/08/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) affects up to 65 million people worldwide, and COPD exacerbation causes tissue damage and subsequent loss of lung function. It is a multifactorial event in which respiratory infections are involved, but little is known about its dynamics. OBJECTIVES The objective of our study was to determine the microbiome composition during an exacerbation event and post-stabilization. METHODS We conducted an observational analytical study of a cohort of 55 COPD patients in which 2 sputum samples (the first taken during an exacerbation event and the second during clinical post-stabilization) were submitted to 16s RNA ribosomal analysis by Illumina Miseq Next Generation Sequencing (NGS). The presence of respiratory viruses was also determined. RESULTS Our study found a stable microbiome composition in the post-stabilization sputum samples of COPD patients, and 4 additional microbiomes in samples taken during the exacerbation, 3 of which showed a marked dysbiosis by Haemophilus, Pseudomonas, and Serratia. The fourth exacerbation microbiome had a very similar composition to post-stabilization samples, but some pathogens such as Moraxella and respiratory viruses were also found. CONCLUSIONS Our study reveals the main protagonists involved in lung microbiome dynamics during an exacerbation event and post-stabilization in COPD patients by NGS analysis.
Collapse
Affiliation(s)
| | - Miguel Santibáñez
- Nursing Department, Universidad de Cantabria-IDIVAL, Santander, Spain
| | - Juan Luis García Rivero
- Department of Pneumology, Hospital de Laredo, Servicio Cántabro de Salud (SCS), Laredo, Spain
| | - Manuel Villanueva
- Department of Pneumology, Hospital de Avilés, Servicio de Salud del Principado de Asturias, Avilés, Spain
| | - Jesús Sainz
- Centro de Salud de Santoña, Servicio Cántabro de Salud (SCS), Castro Urdiales, Santoña, Spain
| | | | - Margarita Hierro
- Centro de Salud de La Barrera, Servicio Cántabro de Salud (SCS), Castro Urdiales, Spain
| | | | - Paula Paras Bravo
- Nursing Department, Universidad de Cantabria-IDIVAL, Santander, Spain
| | - Alex Mira
- Oral Microbiome Laboratory, Centro Superior de Investigación en Salud Pública (CSISP-FISABIO), Conselleria de Sanitat, Valencia, Spain
| | - Juan Carlos Rodriguez
- Department of Microbiology, University General Hospital of Alicante (ISABIAL), Alicante, Spain
| | - Antonio Galiana
- Fundacion para el Fomento de la Investigacion Sanitaria y Biomedica de la Comunidad Valenciana, Department of Microbiology, University General Hospital of Elche, Elche, Alicante, Spain,
| | | |
Collapse
|
8
|
Zhang F, Zhang T, Ma Y, Huang Z, He Y, Pan H, Fang M, Ding H. Alteration of vaginal microbiota in patients with unexplained recurrent miscarriage. Exp Ther Med 2019; 17:3307-3316. [PMID: 30988706 PMCID: PMC6447762 DOI: 10.3892/etm.2019.7337] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 10/12/2018] [Indexed: 12/29/2022] Open
Abstract
The way in which a balanced vaginal microbiome helps prevent gynecological diseases in women and maintain health remains to be fully elucidated. In the present study, the potential effect of aberrations in the vaginal flora on unexplained recurrent miscarriage (RM) was investigated. The vaginal bacterial communities of 10 patients with unexplained RM and 10 healthy volunteers were sampled and subjected to sequencing analysis of the V3-V4 regions of the bacterial 16S ribosomal RNA gene using the Illumina MiSeq platform. Beta diversity analysis/principal component analysis indicated that bacterial community structures were different between the RM and control groups. A lower microbiota diversity in samples from RM patients was revealed by alpha diversity estimation. Taxonomic analysis demonstrated that abundance of three types of phyla (Firmicutes, Actinobacteria and Bacteroidetes) was significantly different between the RM and the normal control group. Furthermore, at the genus level, Lactobacillus was the most dominant genus in the two groups. Statistically significant differences were observed in 5 genera between the two groups. In the RM group, 3 bacterial taxa (Atopobium, Prevotella and Streptococcus) were significantly more abundant, while only 2 taxa were overrepresented in the control group (Lactobacillus and Gardnerella). In conclusion, the present results provide experimental evidence supporting dysbiosis of the vaginal flora in women with RM.
Collapse
Affiliation(s)
- Feng Zhang
- Department of Gynecology, Shaoxing Women and Children's Hospital, Shaoxing, Zhejiang 312000, P.R. China
| | - Tao Zhang
- Genetic Laboratory, Shaoxing Women and Children's Hospital, Shaoxing, Zhejiang 312000, P.R. China
| | - Yingying Ma
- Reproductive Center, Shaoxing Women and Children's Hospital, Shaoxing, Zhejiang 312000, P.R. China
| | - Zhangqian Huang
- Department of Gynecology, Shaoxing Women and Children's Hospital, Shaoxing, Zhejiang 312000, P.R. China
| | - Yao He
- Department of Gynecology, Shaoxing Women and Children's Hospital, Shaoxing, Zhejiang 312000, P.R. China
| | - Haitao Pan
- Genetic Laboratory, Shaoxing Women and Children's Hospital, Shaoxing, Zhejiang 312000, P.R. China
| | - Min Fang
- Genetic Laboratory, Shaoxing Women and Children's Hospital, Shaoxing, Zhejiang 312000, P.R. China
| | - Haigang Ding
- Department of Gynecology, Shaoxing Women and Children's Hospital, Shaoxing, Zhejiang 312000, P.R. China
| |
Collapse
|
9
|
Dicker AJ, Crichton ML, Cassidy AJ, Brady G, Hapca A, Tavendale R, Einarsson GG, Furrie E, Elborn JS, Schembri S, Marshall SE, Palmer CNA, Chalmers JD. Genetic mannose binding lectin deficiency is associated with airway microbiota diversity and reduced exacerbation frequency in COPD. Thorax 2018; 73:510-518. [PMID: 29101284 PMCID: PMC5969339 DOI: 10.1136/thoraxjnl-2016-209931] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 08/19/2017] [Accepted: 10/02/2017] [Indexed: 01/23/2023]
Abstract
BACKGROUND In cystic fibrosis and bronchiectasis, genetic mannose binding lectin (MBL) deficiency is associated with increased exacerbations and earlier mortality; associations in COPD are less clear. Preclinical data suggest MBL interferes with phagocytosis of Haemophilus influenzae, a key COPD pathogen. We investigated whether MBL deficiency impacted on clinical outcomes or microbiota composition in COPD. METHODS Patients with COPD (n=1796) underwent MBL genotyping; linkage to health records identified exacerbations, lung function decline and mortality. A nested subcohort of 141 patients, followed for up to 6 months, was studied to test if MBL deficiency was associated with altered sputum microbiota, through 16S rRNA PCR and sequencing, or airway inflammation during stable and exacerbated COPD. FINDINGS Patients with MBL deficiency with COPD were significantly less likely to have severe exacerbations (incidence rate ratio (IRR) 0.66, 95% CI 0.48 to 0.90, p=0.009), or to have moderate or severe exacerbations (IRR 0.77, 95% CI 0.60 to 0.99, p=0.047). MBL deficiency did not affect rate of FEV1 decline or mortality. In the subcohort, patients with MBL deficiency had a more diverse lung microbiota (p=0.008), and were less likely to be colonised with Haemophilus spp. There were lower levels of airway inflammation in patients with MBL deficiency. INTERPRETATION Patients with MBL deficient genotype with COPD have a lower risk of exacerbations and a more diverse lung microbiota. This is the first study to identify a genetic association with the lung microbiota in COPD.
Collapse
Affiliation(s)
- Alison J Dicker
- Scottish Centre for Respiratory Research, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - Megan L Crichton
- Scottish Centre for Respiratory Research, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - Andrew J Cassidy
- Scottish Centre for Respiratory Research, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - Gill Brady
- Tayside Respiratory Research Group, Clinical Research Centre, Dundee, UK
| | - Adrian Hapca
- Dundee Epidemiology and Biostatistics Unit, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - Roger Tavendale
- Pat MacPherson Centre for Pharmacogenetics and Pharmacogenomics, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - Gisli G Einarsson
- School of Medicine, Centre for Experimental Medicine, Dentistry and Biomedical Sciences, Queen's University, Belfast, UK
| | - Elizabeth Furrie
- Department of Immunology, NHS Tayside, Ninewells Hospital Department of Medicine, Dundee, Dundee, UK
| | - J Stuart Elborn
- School of Medicine, Centre for Experimental Medicine, Dentistry and Biomedical Sciences, Queen's University, Belfast, UK
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Stuart Schembri
- Scottish Centre for Respiratory Research, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - Sara E Marshall
- Scottish Centre for Respiratory Research, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - Colin N A Palmer
- Pat MacPherson Centre for Pharmacogenetics and Pharmacogenomics, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - James D Chalmers
- Scottish Centre for Respiratory Research, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| |
Collapse
|
10
|
Agarwal D, Dhotre D, Patil R, Shouche Y, Juvekar S, Salvi S. Potential of Health and Demographic Surveillance System in Asthma and Chronic Obstructive Pulmonary Disease Microbiome Research. Front Public Health 2017; 5:196. [PMID: 28824902 PMCID: PMC5543077 DOI: 10.3389/fpubh.2017.00196] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 07/20/2017] [Indexed: 12/11/2022] Open
Abstract
Health and demographic surveillance system (HDSS) is a population-based health and vital event registration system that monitors demographic and health events in a geographically defined population at regular intervals. Human microbiome research in the past decade has been the field of increasingly intense research much due to its demonstrated impact upon various health conditions including human chronic airway diseases such as asthma and chronic obstructive pulmonary disease (COPD). Many confounding factors have been revealed to play a role in shaping the microbiome in chronic airway diseases. Asthma and COPD follows a typical pattern of disease progression, which includes stable and exacerbation state in which the microbiota is known to vary. However, many such studies lack extensive and longitudinal sampling with inadequate metadata, which has resulted in the inconsistencies in the observations. HDSS provides such a platform, which can offer a deeper understanding of the role of the microbiome in human health. In this review, we highlight opportunities and limitations in microbiome research with the help of studies conducted on chronic airway diseases like asthma and COPD. In addition, we also emphasize on the benefits of HDSS and future directions in lung microbiome research.
Collapse
Affiliation(s)
- Dhiraj Agarwal
- Chest Research Foundation, Pune, India.,Vadu Rural Health Program, KEM Hospital Research Centre, Pune, India
| | - Dhiraj Dhotre
- Microbial Culture Collection, National Centre for Cell Science, Pune, India
| | - Rutuja Patil
- Vadu Rural Health Program, KEM Hospital Research Centre, Pune, India
| | - Yogesh Shouche
- Microbial Culture Collection, National Centre for Cell Science, Pune, India
| | - Sanjay Juvekar
- Vadu Rural Health Program, KEM Hospital Research Centre, Pune, India.,INDEPTH Network, Accra, Ghana
| | | |
Collapse
|
11
|
Liu HY, Zhang SY, Yang WY, Su XF, He Y, Zhou HW, Su J. Oropharyngeal and Sputum Microbiomes Are Similar Following Exacerbation of Chronic Obstructive Pulmonary Disease. Front Microbiol 2017; 8:1163. [PMID: 28690603 PMCID: PMC5479893 DOI: 10.3389/fmicb.2017.01163] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 06/07/2017] [Indexed: 11/13/2022] Open
Abstract
Growing evidence suggests that the airway microbiota might be involved in acute exacerbation of chronic obstructive pulmonary disease (AECOPD). Understanding this relationship requires examination of a large-scale population for a long duration to accurately monitor changes in the microbiome. This type of longitudinal study requires an appropriate sampling strategy; two options are the collection of sputum or oropharyngeal swabs. Comparative analysis of the changes that occur in these two specimen types has not been previously performed. This observational study was conducted to explore oropharyngeal microbial community dynamics over time and to examine the relationship between oropharyngeal swabs and sputum. A total of 114 samples were collected from four patients suffering from severe AECOPD. Bacterial and fungal communities were evaluated using 16S rRNA and ITS sequencing. Inter-individual differences were found in bacterial community structure, but the core genera were shared by both sample types and included 32 lineages. Most of the core genera were members of the phyla Proteobacteria, Firmicutes and Ascomycota. Although the oropharyngeal samples showed higher bacterial alpha diversity, the two sample types generated rather similar taxonomic profiles. These results suggest that the sputum microbiome is remarkably similar to the oropharyngeal microbiome. Thus, oropharyngeal swabs can potentially be used instead of sputum samples for patients with exacerbation of COPD.
Collapse
Affiliation(s)
- Hai-Yue Liu
- Department of Environmental Health, School of Public Health, Southern Medical UniversityGuangzhou, China.,State Key Laboratory of Organ Failure Research, Division of Laboratory Medicine, Zhujiang Hospital, Southern Medical UniversityGuangzhou, China
| | - Shi-Yu Zhang
- Department of Environmental Health, School of Public Health, Southern Medical UniversityGuangzhou, China
| | - Wan-Ying Yang
- Department of Environmental Health, School of Public Health, Southern Medical UniversityGuangzhou, China
| | - Xiao-Fang Su
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical UniversityGuangzhou, China
| | - Yan He
- State Key Laboratory of Organ Failure Research, Division of Laboratory Medicine, Zhujiang Hospital, Southern Medical UniversityGuangzhou, China
| | - Hong-Wei Zhou
- State Key Laboratory of Organ Failure Research, Division of Laboratory Medicine, Zhujiang Hospital, Southern Medical UniversityGuangzhou, China
| | - Jin Su
- Department of Environmental Health, School of Public Health, Southern Medical UniversityGuangzhou, China.,Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical UniversityGuangzhou, China
| |
Collapse
|
12
|
Polosukhin VV, Richmond BW, Du RH, Cates JM, Wu P, Nian H, Massion PP, Ware LB, Lee JW, Kononov AV, Lawson WE, Blackwell TS. Secretory IgA Deficiency in Individual Small Airways Is Associated with Persistent Inflammation and Remodeling. Am J Respir Crit Care Med 2017; 195:1010-1021. [PMID: 27911098 PMCID: PMC5422646 DOI: 10.1164/rccm.201604-0759oc] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 12/01/2016] [Indexed: 01/01/2023] Open
Abstract
RATIONALE Maintenance of a surface immune barrier is important for homeostasis in organs with mucosal surfaces that interface with the external environment; however, the role of the mucosal immune system in chronic lung diseases is incompletely understood. OBJECTIVES We examined the relationship between secretory IgA (SIgA) on the mucosal surface of small airways and parameters of inflammation and airway wall remodeling in chronic obstructive pulmonary disease (COPD). METHODS We studied 1,104 small airways (<2 mm in diameter) from 50 former smokers with COPD and 39 control subjects. Small airways were identified on serial tissue sections and examined for epithelial morphology, SIgA, bacterial DNA, nuclear factor-κB activation, neutrophil and macrophage infiltration, and airway wall thickness. MEASUREMENTS AND MAIN RESULTS Morphometric evaluation of small airways revealed increased mean airway wall thickness and inflammatory cell counts in lungs from patients with COPD compared with control subjects, whereas SIgA level on the mucosal surface was decreased. However, when small airways were classified as SIgA intact or SIgA deficient, we found that pathologic changes were localized almost exclusively to SIgA-deficient airways, regardless of study group. SIgA-deficient airways were characterized by (1) abnormal epithelial morphology, (2) invasion of bacteria across the apical epithelial barrier, (3) nuclear factor-κB activation, (4) accumulation of macrophages and neutrophils, and (5) fibrotic remodeling of the airway wall. CONCLUSIONS Our findings support the concept that localized, acquired SIgA deficiency in individual small airways of patients with COPD allows colonizing bacteria to cross the epithelial barrier and drive persistent inflammation and airway wall remodeling, even after smoking cessation.
Collapse
Affiliation(s)
- Vasiliy V. Polosukhin
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - Bradley W. Richmond
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
- Department of Cell and Developmental Biology
| | - Rui-Hong Du
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - Justin M. Cates
- Department of Pathology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Pingsheng Wu
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - Hui Nian
- Department of Biostatistics, and
| | - Pierre P. Massion
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, Tennessee
- Department of Veterans Affairs Medical Center, Nashville, Tennessee
| | - Lorraine B. Ware
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
| | - Jae Woo Lee
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, San Francisco, California; and
| | - Alexey V. Kononov
- Department of Pathology, Omsk State Medical Academy, Omsk, Russian Federation
| | - William E. Lawson
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
- Department of Veterans Affairs Medical Center, Nashville, Tennessee
| | - Timothy S. Blackwell
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, and
- Department of Cell and Developmental Biology
- Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, Tennessee
- Department of Veterans Affairs Medical Center, Nashville, Tennessee
| |
Collapse
|
13
|
Huang YJ, Erb-Downward JR, Dickson RP, Curtis JL, Huffnagle GB, Han MK. Understanding the role of the microbiome in chronic obstructive pulmonary disease: principles, challenges, and future directions. Transl Res 2017; 179:71-83. [PMID: 27392936 PMCID: PMC5164976 DOI: 10.1016/j.trsl.2016.06.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/09/2016] [Accepted: 06/15/2016] [Indexed: 12/23/2022]
Abstract
In the past several years, advances in sequencing platforms and bioinformatics have transformed our understanding of the relationship between microbial ecology and human health. Both the normal and diseased lung are host to hundreds of bacterial genera, blurring the lines between "colonization" and "infection". However, whereas in health the respiratory microbiome is determined primarily by the dynamic balance of immigration and elimination, in chronic disease conditions become much more favorable for the reproduction of resident bacteria. Recent studies demonstrate that the microbiota of the chronic obstructive pulmonary disease (COPD) lung differ from the healthy lung although significant intrasubject and intersubject heterogeneity are still present with variation impacted by factors such as disease stage and inhaled medications. Changes in the relative abundance of specific bacterial taxa during COPD exacerbations have also been noted although further longitudinal analyses are needed to ascertain the malleability and resilience of this ecological system and its role in the occurrence and frequency of exacerbations. Whether patients with a "frequent exacerbator" phenotype possess specific or greater alterations in their airway microbiome that predispose them to recurrent exacerbations as compared with nonfrequent exacerbators needs to be determined. Although recent data suggest that the presence of bacteria has the potential to influence the host immune response, a key challenge in the next few years will be to continue to move beyond descriptive studies to define the clinical relevance of differences in lung microbiota associated with COPD.
Collapse
Affiliation(s)
- Yvonne J Huang
- Division of Pulmonary and Critical Care, University of Michigan, Ann Arbor, Mich
| | - John R Erb-Downward
- Division of Pulmonary and Critical Care, University of Michigan, Ann Arbor, Mich
| | - Robert P Dickson
- Division of Pulmonary and Critical Care, University of Michigan, Ann Arbor, Mich
| | - Jeffrey L Curtis
- Division of Pulmonary and Critical Care, University of Michigan, Ann Arbor, Mich; Pulmonary & Critical Care Medicine Section, Medical Service, VA, Ann Arbor, Mich
| | - Gary B Huffnagle
- Division of Pulmonary and Critical Care, University of Michigan, Ann Arbor, Mich
| | - MeiLan K Han
- Division of Pulmonary and Critical Care, University of Michigan, Ann Arbor, Mich.
| |
Collapse
|
14
|
Mammen MJ, Sethi S. COPD and the microbiome. Respirology 2016; 21:590-9. [DOI: 10.1111/resp.12732] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 10/19/2015] [Accepted: 11/09/2015] [Indexed: 02/06/2023]
Affiliation(s)
- Manoj J. Mammen
- Divisions of Pulmonary, Critical Care, and Sleep Medicine; State University of New York at Buffalo School of Medicine; Buffalo New York USA
- Department of Biomedical Informatics; State University of New York at Buffalo School of Medicine; Buffalo New York USA
| | - Sanjay Sethi
- Divisions of Pulmonary, Critical Care, and Sleep Medicine; State University of New York at Buffalo School of Medicine; Buffalo New York USA
- Veterans Affairs Western New York Healthcare System; Buffalo New York USA
| |
Collapse
|