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van Beveren GJ, de Steenhuijsen Piters WAA, Boeschoten SA, Louman S, Chu ML, Arp K, Fraaij PL, de Hoog M, Buysse C, van Houten MA, Sanders EAM, Merkus PJFM, Boehmer AL, Bogaert D. Nasopharyngeal microbiota in children is associated with severe asthma exacerbations. J Allergy Clin Immunol 2024; 153:1574-1585.e14. [PMID: 38467291 DOI: 10.1016/j.jaci.2024.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 02/08/2024] [Accepted: 02/16/2024] [Indexed: 03/13/2024]
Abstract
BACKGROUND The respiratory microbiome has been associated with the etiology and disease course of asthma. OBJECTIVE We sought to assess the nasopharyngeal microbiota in children with a severe asthma exacerbation and their associations with medication, air quality, and viral infection. METHODS A cross-sectional study was performed among children aged 2 to 18 years admitted to the medium care unit (MCU; n = 84) or intensive care unit (ICU; n = 78) with an asthma exacerbation. For case-control analyses, we matched all cases aged 2 to 6 years (n = 87) to controls in a 1:2 ratio. Controls were participants of either a prospective case-control study or a longitudinal birth cohort (n = 182). The nasopharyngeal microbiota was characterized by 16S-rRNA-gene sequencing. RESULTS Cases showed higher Shannon diversity index (ICU and MCU combined; P = .002) and a distinct microbial community composition when compared with controls (permutational multivariate ANOVA R2 = 1.9%; P < .001). We observed significantly higher abundance of Staphylococcus and "oral" taxa, including Neisseria, Veillonella, and Streptococcus spp. and a lower abundance of Dolosigranulum pigrum, Corynebacterium, and Moraxella spp. (MaAsLin2; q < 0.25) in cases versus controls. Furthermore, Neisseria abundance was associated with more severe disease (ICU vs MCU MaAslin2, P = .03; q = 0.30). Neisseria spp. abundance was also related with fine particulate matter exposure, whereas Haemophilus and Streptococcus abundances were related with recent inhaled corticosteroid use. We observed no correlations with viral infection. CONCLUSIONS Our results demonstrate that children admitted with asthma exacerbations harbor a microbiome characterized by overgrowth of Staphylococcus and "oral" microbes and an underrepresentation of beneficial niche-appropriate commensals. Several of these associations may be explained by (environmental or medical) exposures, although cause-consequence relationships remain unclear and require further investigations.
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Affiliation(s)
- Gina J van Beveren
- Department of Paediatric Immunology and Infectious Diseases, Wilhelmina Children's Hospital/University Medical Center Utrecht, Utrecht, The Netherlands; Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands; Department of Paediatrics, Spaarne Hospital, Haarlem, The Netherlands
| | - Wouter A A de Steenhuijsen Piters
- Department of Paediatric Immunology and Infectious Diseases, Wilhelmina Children's Hospital/University Medical Center Utrecht, Utrecht, The Netherlands; Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Shelley A Boeschoten
- Department of Neonatal and Paediatric Intensive Care, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Sam Louman
- Department of Paediatrics, Spaarne Hospital, Haarlem, The Netherlands
| | - Mei Ling Chu
- Department of Paediatric Immunology and Infectious Diseases, Wilhelmina Children's Hospital/University Medical Center Utrecht, Utrecht, The Netherlands; Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Kayleigh Arp
- Department of Paediatric Immunology and Infectious Diseases, Wilhelmina Children's Hospital/University Medical Center Utrecht, Utrecht, The Netherlands; Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Pieter L Fraaij
- Pediatric Infectious Diseases & Immunology, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands; Department of Viroscience, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Matthijs de Hoog
- Department of Neonatal and Paediatric Intensive Care, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Corinne Buysse
- Department of Neonatal and Paediatric Intensive Care, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands
| | | | - Elisabeth A M Sanders
- Department of Paediatric Immunology and Infectious Diseases, Wilhelmina Children's Hospital/University Medical Center Utrecht, Utrecht, The Netherlands; Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Peter J F M Merkus
- Division of Respiratory Medicine, Department of Paediatrics, Radboudumc Amalia Children's Hospital, Nijmegen, The Netherlands
| | - Annemie L Boehmer
- Department of Paediatrics, Spaarne Hospital, Haarlem, The Netherlands; Department of Paediatrics, Maasstad Hospital, Rotterdam, The Netherlands
| | - Debby Bogaert
- Department of Paediatric Immunology and Infectious Diseases, Wilhelmina Children's Hospital/University Medical Center Utrecht, Utrecht, The Netherlands; Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, United Kingdom.
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Quinn-Bohmann N, Freixas-Coutin JA, Seo J, Simmons R, Diener C, Gibbons SM. Meta-analysis of the human upper respiratory tract microbiome reveals robust taxonomic associations with health and disease. BMC Biol 2024; 22:93. [PMID: 38654335 PMCID: PMC11040984 DOI: 10.1186/s12915-024-01887-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 04/15/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND The human upper respiratory tract (URT) microbiome, like the gut microbiome, varies across individuals and between health and disease states. However, study-to-study heterogeneity in reported case-control results has made the identification of consistent and generalizable URT-disease associations difficult. RESULTS In order to address this issue, we assembled 26 independent 16S rRNA gene amplicon sequencing data sets from case-control URT studies, with approximately 2-3 studies per respiratory condition and ten distinct conditions covering common chronic and acute respiratory diseases. We leveraged the healthy control data across studies to investigate URT associations with age, sex, and geographic location, in order to isolate these associations from health and disease states. CONCLUSIONS We found several robust genus-level associations, across multiple independent studies, with either health or disease status. We identified disease associations specific to a particular respiratory condition and associations general to all conditions. Ultimately, we reveal robust associations between the URT microbiome, health, and disease, which hold across multiple studies and can help guide follow-up work on potential URT microbiome diagnostics and therapeutics.
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Affiliation(s)
- Nick Quinn-Bohmann
- Institute for Systems Biology, Seattle, WA, 98109, USA.
- Molecular Engineering Graduate Program, University of Washington, Seattle, WA, 98195, USA.
| | | | - Jin Seo
- Reckitt Health US LLC, 1 Philips Pkwy, Montvale, NJ, 07645, USA
| | - Ruth Simmons
- Reckitt Benckiser Healthcare Ltd, 105 Bath Road, Slough, Berkshire, SL1 3UH, UK
| | | | - Sean M Gibbons
- Institute for Systems Biology, Seattle, WA, 98109, USA.
- Molecular Engineering Graduate Program, University of Washington, Seattle, WA, 98195, USA.
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA.
- Department of Genome Sciences, University of Washington, Seattle, WA, 98195, USA.
- eScience Institute, University of Washington, Seattle, WA, 98195, USA.
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Chen R, Xie G, Lin Z, Gu G, Yu Y, Yu J, Liu Z. Predicting Microbe-Disease Associations Based on a Linear Neighborhood Label Propagation Method with Multi-order Similarity Fusion Learning. Interdiscip Sci 2024:10.1007/s12539-024-00607-0. [PMID: 38436840 DOI: 10.1007/s12539-024-00607-0] [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: 08/11/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 03/05/2024]
Abstract
Computational approaches employed for predicting potential microbe-disease associations often rely on similarity information between microbes and diseases. Therefore, it is important to obtain reliable similarity information by integrating multiple types of similarity information. However, existing similarity fusion methods do not consider multi-order fusion of similarity networks. To address this problem, a novel method of linear neighborhood label propagation with multi-order similarity fusion learning (MOSFL-LNP) is proposed to predict potential microbe-disease associations. Multi-order fusion learning comprises two parts: low-order global learning and high-order feature learning. Low-order global learning is used to obtain common latent features from multiple similarity sources. High-order feature learning relies on the interactions between neighboring nodes to identify high-order similarities and learn deeper interactive network structures. Coefficients are assigned to different high-order feature learning modules to balance the similarities learned from different orders and enhance the robustness of the fusion network. Overall, by combining low-order global learning with high-order feature learning, multi-order fusion learning can capture both the shared and unique features of different similarity networks, leading to more accurate predictions of microbe-disease associations. In comparison to six other advanced methods, MOSFL-LNP exhibits superior prediction performance in the leave-one-out cross-validation and 5-fold validation frameworks. In the case study, the predicted 10 microbes associated with asthma and type 1 diabetes have an accuracy rate of up to 90% and 100%, respectively.
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Affiliation(s)
- Ruibin Chen
- School of Computer, Guangdong University of Technology, Guangzhou, 510000, China
| | - Guobo Xie
- School of Computer, Guangdong University of Technology, Guangzhou, 510000, China
| | - Zhiyi Lin
- School of Computer, Guangdong University of Technology, Guangzhou, 510000, China.
| | - Guosheng Gu
- School of Computer, Guangdong University of Technology, Guangzhou, 510000, China.
| | - Yi Yu
- School of Computer, Guangdong University of Technology, Guangzhou, 510000, China
| | - Junrui Yu
- School of Computer, Guangdong University of Technology, Guangzhou, 510000, China
| | - Zhenguo Liu
- Department of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China.
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Bar K, Litera-Bar M, Sozańska B. Bacterial Microbiota of Asthmatic Children and Preschool Wheezers' Airways-What Do We Know? Microorganisms 2023; 11:1154. [PMID: 37317128 DOI: 10.3390/microorganisms11051154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/12/2023] [Accepted: 04/26/2023] [Indexed: 06/16/2023] Open
Abstract
Asthma is the most chronic pulmonary disease in pediatric population, and its etiopathology still remains unclear. Both viruses and bacteria are suspected factors of disease development and are responsible for its exacerbation. Since the launch of The Human Microbiome Project, there has been an explosion of research on microbiota and its connection with various diseases. In our review, we have collected recent data about both upper- and lower-airway bacterial microbiota of asthmatic children. We have also included studies regarding preschool wheezers, since asthma diagnosis in children under 5 years of age remains challenging due to the lack of an objective tool. This paper indicates the need for further studies of microbiome and asthma, as in today's knowledge, there is no particular bacterium that discriminates the asthmatics from the healthy peers and can be used as a potential biological factor in the disease prevalence and treatment.
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Affiliation(s)
- Kamil Bar
- 1st Department and Clinic of Paediatrics, Allergology and Cardiology, Wroclaw Medical University, 50-367 Wroclaw, Poland
| | - Maja Litera-Bar
- University Clinical Hospital in Wroclaw, 50-556 Wroclaw, Poland
| | - Barbara Sozańska
- 1st Department and Clinic of Paediatrics, Allergology and Cardiology, Wroclaw Medical University, 50-367 Wroclaw, Poland
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The Overlooked Microbiome-Considering Archaea and Eukaryotes Using Multiplex Nanopore-16S-/18S-rDNA-Sequencing: A Technical Report Focusing on Nasopharyngeal Microbiomes. Int J Mol Sci 2023; 24:ijms24021426. [PMID: 36674956 PMCID: PMC9863950 DOI: 10.3390/ijms24021426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/20/2022] [Accepted: 12/27/2022] [Indexed: 01/15/2023] Open
Abstract
In contrast to bacteria, microbiome analyses often neglect archaea, but also eukaryotes. This is partly because they are difficult to culture due to their demanding growth requirements, or some even have to be classified as uncultured microorganisms. Consequently, little is known about the relevance of archaea in human health and diseases. Contemporary broad availability and spread of next generation sequencing techniques now enable a stronger focus on such microorganisms, whose cultivation is difficult. However, due to the enormous evolutionary distances between bacteria, archaea and eukaryotes, the implementation of sequencing strategies for smaller laboratory scales needs to be refined to achieve as a holistic view on the microbiome as possible. Here, we present a technical approach that enables simultaneous analyses of archaeal, bacterial and eukaryotic microbial communities to study their roles in development and courses of respiratory disorders. We thus applied combinatorial 16S-/18S-rDNA sequencing strategies for sequencing-library preparation. Considering the lower total microbiota density of airway surfaces, when compared with gut microbiota, we optimized the DNA purification workflow from nasopharyngeal swab specimens. As a result, we provide a protocol that allows the efficient combination of bacterial, archaeal, and eukaryotic libraries for nanopore-sequencing using Oxford Nanopore Technologies MinION devices and subsequent phylogenetic analyses. In a pilot study, this workflow allowed the identification of some environmental archaea, which were not correlated with airway microbial communities before. Moreover, we assessed the protocol's broader applicability using a set of human stool samples. We conclude that the proposed protocol provides a versatile and adaptable tool for combinatorial studies on bacterial, archaeal, and eukaryotic microbiomes on a small laboratory scale.
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Microarray-Based Analyses of Rhinovirus Species-Specific Antibody Responses in Exacerbated Pediatric Asthma in a German Pediatric Cohort. Viruses 2022; 14:v14091857. [PMID: 36146664 PMCID: PMC9502376 DOI: 10.3390/v14091857] [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: 07/03/2022] [Revised: 08/15/2022] [Accepted: 08/18/2022] [Indexed: 02/05/2023] Open
Abstract
Rhinoviruses (RV) account for a significant number of asthma exacerbations, and RV species C may be associated with a severe course in vulnerable patient groups. Despite important evidence on the role of RV reported by clinicians and life scientists, there are still unanswered questions regarding their influence on asthma exacerbation in young patients. Thus, we measured the RVspecies-specific IgG titers in our German pediatric exacerbation cohort using a microarray-based technology. For this approach, human sera of patients with exacerbated asthma and wheeze, as well as healthy control subjects (n = 136) were included, and correlation analyses were performed. Concordantly with previously published results, we observed significantly higher cumulative levels of RV species A-specific IgG (p = 0.011) and RV-C-specific IgG (p = 0.051) in exacerbated asthma group compared to age-matched controls. Moreover, atopic wheezers had increased RV-specific IgG levels for species A (p = 0.0011) and species C (p = 0.0009) compared to non-atopic wheezers. Hypothesizing that bacterial infection positively correlates with immune memory against RV, we included nasopharyngeal swab results in our analyses and detected limited correlations. Interestingly, the eosinophil blood titer positively correlated with RV-specific IgG levels. With these observations, we add important observations to the existing data regarding exacerbation in pediatric and adolescent medicine. We propose that scientists and clinicians should pay more attention to the relevance of RV species in susceptible pediatric patients.
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Sallard E, Schult F, Baehren C, Buedding E, Mboma O, Ahmad-Nejad P, Ghebremedhin B, Ehrhardt A, Wirth S, Aydin M. Viral Infection and Respiratory Exacerbation in Children: Results from a Local German Pediatric Exacerbation Cohort. Viruses 2022; 14:v14030491. [PMID: 35336898 PMCID: PMC8955305 DOI: 10.3390/v14030491] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 02/20/2022] [Accepted: 02/23/2022] [Indexed: 02/05/2023] Open
Abstract
Respiratory viruses play an important role in asthma exacerbation, and early exposure can be involved in recurrent bronchitis and the development of asthma. The exact mechanism is not fully clarified, and pathogen-to-host interaction studies are warranted to identify biomarkers of exacerbation in the early phase. Only a limited number of international exacerbation cohorts were studied. Here, we have established a local pediatric exacerbation study in Germany consisting of children with asthma or chronic, recurrent bronchitis and analyzed the viriome within the nasopharyngeal swab specimens derived from the entire cohort (n = 141). Interestingly, 41% of exacerbated children had a positive test result for human rhinovirus (HRV)/human enterovirus (HEV), and 14% were positive for respiratory syncytial virus (RSV). HRV was particularly prevalent in asthmatics (56%), wheezers (50%), and atopic (66%) patients. Lymphocytes were decreased in asthmatics and in HRV-infected subjects, and patients allergic to house dust mites were more susceptible to HRV infection. Our study thus confirms HRV infection as a strong ‘biomarker’ of exacerbated asthma. Further longitudinal studies will show the clinical progress of those children with a history of an RSV or HRV infection. Vaccination strategies and novel treatment guidelines against HRV are urgently needed to protect those high-risk children from a serious course of disease.
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Affiliation(s)
- Erwan Sallard
- Center for Biomedical Education and Research (ZBAF), Department of Human Medicine, Faculty of Health, Institute of Virology and Microbiology, Witten/Herdecke University, 58453 Witten, Germany; (E.S.); (A.E.)
| | - Frank Schult
- Center for Child and Adolescent Medicine, Center for Clinical and Translational Research (CCTR), Helios University Hospital Wuppertal, Witten/Herdecke University, 42283 Wuppertal, Germany; (F.S.); (O.M.); (S.W.)
| | - Carolin Baehren
- Laboratory of Experimental Pediatric Pneumology and Allergology, Center for Biomedical Education and Research, Faculty of Health, School of Life Sciences (ZBAF), Witten/Herdecke University, 58455 Witten, Germany; (C.B.); (E.B.)
| | - Eleni Buedding
- Laboratory of Experimental Pediatric Pneumology and Allergology, Center for Biomedical Education and Research, Faculty of Health, School of Life Sciences (ZBAF), Witten/Herdecke University, 58455 Witten, Germany; (C.B.); (E.B.)
| | - Olivier Mboma
- Center for Child and Adolescent Medicine, Center for Clinical and Translational Research (CCTR), Helios University Hospital Wuppertal, Witten/Herdecke University, 42283 Wuppertal, Germany; (F.S.); (O.M.); (S.W.)
| | - Parviz Ahmad-Nejad
- Institute for Medical Laboratory Diagnostics, Center for Clinical and Translational Research (CCTR), Helios University Hospital Wuppertal, Witten/Herdecke University, 42283 Wuppertal, Germany;
| | - Beniam Ghebremedhin
- Institute for Medical Laboratory Diagnostics, Center for Clinical and Translational Research (CCTR), Helios University Hospital Wuppertal, Witten/Herdecke University, 42283 Wuppertal, Germany;
| | - Anja Ehrhardt
- Center for Biomedical Education and Research (ZBAF), Department of Human Medicine, Faculty of Health, Institute of Virology and Microbiology, Witten/Herdecke University, 58453 Witten, Germany; (E.S.); (A.E.)
| | - Stefan Wirth
- Center for Child and Adolescent Medicine, Center for Clinical and Translational Research (CCTR), Helios University Hospital Wuppertal, Witten/Herdecke University, 42283 Wuppertal, Germany; (F.S.); (O.M.); (S.W.)
| | - Malik Aydin
- Center for Child and Adolescent Medicine, Center for Clinical and Translational Research (CCTR), Helios University Hospital Wuppertal, Witten/Herdecke University, 42283 Wuppertal, Germany; (F.S.); (O.M.); (S.W.)
- Laboratory of Experimental Pediatric Pneumology and Allergology, Center for Biomedical Education and Research, Faculty of Health, School of Life Sciences (ZBAF), Witten/Herdecke University, 58455 Witten, Germany; (C.B.); (E.B.)
- Correspondence: ; Tel.: +49-(0)-202-896-2384; Fax: +49-(0)-202-896-3834
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