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Peer A, Samuelson DR. The Role of the Microbiome in Allergy, Asthma, and Occupational Lung Disease. Curr Allergy Asthma Rep 2024; 24:415-423. [PMID: 38904934 PMCID: PMC11297072 DOI: 10.1007/s11882-024-01156-8] [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] [Accepted: 06/07/2024] [Indexed: 06/22/2024]
Abstract
PURPOSE OF REVIEW The human commensal microbiota is now widely accepted as a key regulator of human health and disease. The composition of the mucosal associated microbiota has been shown to play a critical role in the lung health. The role of the mucosal microbiota in the development and severity of allergy, asthma, and occupational lung disease is only beginning to take shape. However, advances in our understanding of these links have tremendous potential to led to new clinical interventions to reduce allergy, asthma, and occupational lung disease morbidity. RECENT FINDINGS We review recent work describing the relationship and role of the commensal microbiota in the development of allergy, asthma, and occupational lung disease. Our review primarily focuses on occupational exposures and the effects of the microbiome, both in composition and function. Data generated from these studies may lead to the development of interventions targeted at establishing and maintaining a healthy microbiota. We also highlight the role of environmental exposures and the effects on the commensal microbial community and their potential association with occupational lung disease. This review explores the current research describing the role of the human microbiome in the regulation of pulmonary health and disease, with a specific focus on the role of the mucosal microbiota in the development of allergy, asthma, and occupational lung disease.
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Affiliation(s)
- Ashley Peer
- Department of Internal Medicine, Division of Pulmonary, Critical Care, and Sleep, University of Nebraska Medical Center, Omaha, NE, USA
| | - Derrick R Samuelson
- Department of Internal Medicine, Division of Pulmonary, Critical Care, and Sleep, University of Nebraska Medical Center, Omaha, NE, USA.
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, USA.
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2
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Chen HZ, Zeng YY, Cai GX, Gu WD, Yang Y. Differential analysis of serum immunology and gut microbiota in patients with gastrointestinal diseases. Front Microbiol 2024; 15:1323842. [PMID: 38751718 PMCID: PMC11094713 DOI: 10.3389/fmicb.2024.1323842] [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: 10/18/2023] [Accepted: 04/05/2024] [Indexed: 05/18/2024] Open
Abstract
Objective Gastric and intestinal diseases possess distinct characteristics although they are interconnected. The primary objective of this study was to investigate the pathogenesis of gastrointestinal diseases through different analyses of clinical characteristics, serum immunology, and gut microbiota in patients with gastrointestinal diseases. Methods We collected serum samples from 89 patients with gastrointestinal diseases and 9 healthy controls for immunological assessment, stool samples for DNA extraction, library construction, sequencing, as well as clinical data for subsequent analysis. Results Regarding clinical characteristics, there were significant differences between the disease group and the healthy control (HC) group, particularly in terms of age, cancer antigen 125 (CA125), cancer antigen 199 (CA199), alpha-fetoprotein (AFP), total bilirubin (TBIL) and indirect bilirubin (IBIL). The intestinal disease (ID) group exhibited the highest IL-6 level, which significantly differed from the stomach disease (SD) group (p < 0.05). In comparing the HC with the ID groups, significant differences in abundance were detected across 46 species. The HC group displayed a greater abundance of Clostridiales, Clostridia, Firmicutes, Bifidobacterium, Bifidobacteriaceae, Bifidobacteriales, Actinobacteria, Veillonellaceae, Longum, Copri, Megamonas and Callidus than other species. Similarly, when comparing the HC with the SD groups, significant differences in abundance were identified among 49 species, with only one species that the Lachnospiraceae in the HC group exhibited a higher abundance than others. Furthermore, certain clinical characteristics, such as CA125, CA199, glucose (Glu), creatine kinase-MB (CKMB) and interleukin-22 (IL-22), displayed positive correlations with enriched gut species in the ID and SD groups, while exhibiting a negative correlation with the HC group. Conclusion The disturbance in human gut microbiota is intimately associated with the development and progression of gastrointestinal diseases. Moreover, the gut microbiota in the HC group was found more diverse than that in the ID and SD groups, and there were significant differences in microbial species among the three groups at different classification levels. Notably, a correlation was identified between specific clinical characteristics (e.g., CA125, CA199, Glu, CKMB and IL-22) and gut microbiota among patients with gastrointestinal diseases.
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Affiliation(s)
- Huan Zhu Chen
- Biochemistry Teaching and Research Office of the Basic Department of the Medical College of Jiaying University, Meizhou, China
| | - Yu Yang Zeng
- Biochemistry Teaching and Research Office of the Basic Department of the Medical College of Jiaying University, Meizhou, China
| | - Guo Xiong Cai
- Laboratory Department of the Affiliated Hospital of the Medical College of Jiaying University, Meizhou, China
| | - Wei Dan Gu
- Laboratory Department of the Affiliated Hospital of the Medical College of Jiaying University, Meizhou, China
| | - YaLi Yang
- Biochemistry Teaching and Research Office of the Basic Department of the Medical College of Jiaying University, Meizhou, China
- Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Areas, Meizhou, China
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Khomarloo N, Mohsenzadeh E, Gidik H, Bagherzadeh R, Latifi M. Overall perspective of electrospun semiconductor metal oxides as high-performance gas sensor materials for NO x detection. RSC Adv 2024; 14:7806-7824. [PMID: 38444964 PMCID: PMC10913163 DOI: 10.1039/d3ra08119b] [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: 11/27/2023] [Accepted: 02/18/2024] [Indexed: 03/07/2024] Open
Abstract
Gas sensors based on nanostructured semiconductor metal oxide (SMO) materials have been extensively investigated as key components due to their advantages over other materials, namely, high sensitivity, stability, affordability, rapid response and simplicity. However, the difficulty of working at high temperatures, response in lower concentration and their selectivity are huge challenges of SMO materials for detecting gases. Therefore, researchers have not stopped their quest to develop new gas sensors based on SMOs with higher performance. This paper begins by highlighting the importance of nitrogen monoxide (NO) and nitrogen dioxide (NO2) detection for human health and addresses the challenges associated with existing methods in effectively detecting them. Subsequently, the mechanism of SMO gas sensors, analysis of their structure and fabrication techniques focusing on electrospinning technique, as well as their advantages, difficulties, and structural design challenges are discussed. Research on enhancing the sensing performance through tuning the fabrication parameters are summarized as well. Finally, the problems and potential of SMO based gas sensors to detect NOx are revealed, and the future possibilities are stated.
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Affiliation(s)
- Niloufar Khomarloo
- Advanced Fibrous Materials Lab (AFM-LAB), Institute for Advanced Textile Materials and Technology, Amirkabir University of Technology (Tehran Polytechnic) Iran
- Univ. Lille, ENSAIT, Laboratoire Génie et Matériaux Textile (GEMTEX) F-59000 Lille France
- Junia F-59000 Lille France
| | - Elham Mohsenzadeh
- Univ. Lille, ENSAIT, Laboratoire Génie et Matériaux Textile (GEMTEX) F-59000 Lille France
- Junia F-59000 Lille France
| | - Hayriye Gidik
- Univ. Lille, ENSAIT, Laboratoire Génie et Matériaux Textile (GEMTEX) F-59000 Lille France
- Junia F-59000 Lille France
| | - Roohollah Bagherzadeh
- Advanced Fibrous Materials Lab (AFM-LAB), Institute for Advanced Textile Materials and Technology, Amirkabir University of Technology (Tehran Polytechnic) Iran
| | - Masoud Latifi
- Textile Engineering Department, Textile Research and Excellence Centers, Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
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Chan M, Ghadieh C, Irfan I, Khair E, Padilla N, Rebeiro S, Sidgreaves A, Patravale V, Disouza J, Catanzariti R, Pont L, Williams K, De Rubis G, Mehndiratta S, Dhanasekaran M, Dua K. Exploring the influence of the microbiome on the pharmacology of anti-asthmatic drugs. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:751-762. [PMID: 37650889 PMCID: PMC10791706 DOI: 10.1007/s00210-023-02681-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 08/18/2023] [Indexed: 09/01/2023]
Abstract
The microbiome is increasingly implicated in playing a role in physiology and pharmacology; in this review, we investigate the literature on the possibility of bacterial influence on the pharmacology of anti-asthmatic drugs, and the potential impact this has on asthmatic patients. Current knowledge in this area of research reveals an interaction between the gut and lung microbiome and the development of asthma. The influence of microbiome on the pharmacokinetics and pharmacodynamics of anti-asthmatic drugs is limited; however, understanding this interaction will assist in creating a more efficient treatment approach. This literature review highlighted that bioaccumulation and biotransformation in the presence of certain gut bacterial strains could affect drug metabolism in anti-asthmatic drugs. Furthermore, the bacterial richness in the lungs and the gut can influence drug efficacy and could also play a role in drug response. The implications of the above findings suggest that the microbiome is a contributing factor to an individuals' pharmacological response to anti-asthmatic drugs. Hence, future directions for research should follow investigating how these processes affect asthmatic patients and consider the role of the microbiome on drug efficacy and modify treatment guidelines accordingly.
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Affiliation(s)
- Michael Chan
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Chloe Ghadieh
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Isphahan Irfan
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Eamen Khair
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Natasha Padilla
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Sanshya Rebeiro
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Annabel Sidgreaves
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Vandana Patravale
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai, Maharashtra, India
| | - John Disouza
- Department of Pharmaceutics, Tatyasaheb Kore College of Pharmacy, Warananagar, Tal: Panhala, Maharashtra, 416113, India
| | - Rachelle Catanzariti
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Lisa Pont
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Kylie Williams
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Gabriele De Rubis
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Sydney, Australia
| | - Samir Mehndiratta
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Sydney, Australia
| | | | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia.
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Sydney, Australia.
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5
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Guo Z, Huang L, Lai S. Global knowledge mapping and emerging research trends in the microbiome and asthma: A bibliometric and visualized analysis using VOSviewer and CiteSpace. Heliyon 2024; 10:e24528. [PMID: 38304829 PMCID: PMC10831755 DOI: 10.1016/j.heliyon.2024.e24528] [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: 10/10/2023] [Revised: 01/10/2024] [Accepted: 01/10/2024] [Indexed: 02/03/2024] Open
Abstract
Background Numerous prior studies have extensively highlighted the significance of the microbiome in association with asthma. While several studies have concentrated on the asthma microbiome in previous research, there is currently a lack of publications that employ bibliometric methods to assess this area. Methods In this study, the Web of Science Core Collection database was utilized as the data source, and the SCI-EXPANDED index was employed to ensure that the retrieved data were comprehensive and accurate. All original research articles and review articles related to the correlation between asthma and the microbiome were systematically searched from the inception of the database until June 20, 2023. These articles were subsequently visualized and analyzed using VOSviewer and CiteSpace software. Results A total of 1366 relevant publications were acquired, indicating a consistent annual increase in global publications in the field. The United States and China emerged as the top two contributors to international publications. Among prolific authors, Susan V. Lynch achieved the highest publication record, with Hans Bisgaard and Jakob Stokholm sharing the second position. The majority of publications concentrated on allergy-related and microbiome areas, with a few comprehensive journals standing out. Journals with 40 or more publications included the Journal of Allergy and Clinical Immunology, Allergy, Frontiers in Immunology, and PLOS One. The top 5 cited journals were the Journal of Allergy and Clinical Immunology, PLOS One, American Journal of Respiratory and Critical Care Medicine, Clinical and Experimental Allergy, and Nature. Upon analyzing keywords, high-frequency terms, such as asthma, gut microbiota, microbiome, children, childhood asthma, allergy, risk, exposure, inflammation, diversity, and chain fatty acids emerged as representative terms in the field. Conclusion This study systematically presented a comprehensive overview of the literature regarding the association between asthma and the microbiome over the last two decades. Through a bibliometric perspective, the findings may assist researchers with a better understanding of the essential information in the field.
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Affiliation(s)
- ZhiFeng Guo
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, Fujian Province, China
| | - LingHong Huang
- Department of Endocrinology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, Fujian Province, China
| | - SuMei Lai
- Stem Cell Laboratory, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, Fujian Province, China
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Eladham MW, Selvakumar B, Saheb Sharif-Askari N, Saheb Sharif-Askari F, Ibrahim SM, Halwani R. Unraveling the gut-Lung axis: Exploring complex mechanisms in disease interplay. Heliyon 2024; 10:e24032. [PMID: 38268584 PMCID: PMC10806295 DOI: 10.1016/j.heliyon.2024.e24032] [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: 08/12/2023] [Revised: 12/18/2023] [Accepted: 01/02/2024] [Indexed: 01/26/2024] Open
Abstract
The link between gut and lung starts as early as during organogenesis. Even though they are anatomically distinct, essential bidirectional crosstalk via complex mechanisms supports GLA. Emerging studies have demonstrated the association of gut and lung diseases via multifaceted mechanisms. Advancements in omics and metagenomics technologies revealed a potential link between gut and lung microbiota, adding further complexity to GLA. Despite substantial studies on GLA in various disease models, mechanisms beyond microbial dysbiosis regulating the interplay between gut and lung tissues during disease conditions are not thoroughly reviewed. This review outlines disease specific GLA mechanisms, emphasizing research gaps with a focus on gut-to-lung direction based on current GLA literature. Moreover, the review discusses potential gut microbiota and their products like metabolites, immune modulators, and non-bacterial contributions as a basis for developing treatment strategies for lung diseases. Advanced experimental methods, modern diagnostic tools, and technological advancements are also highlighted as crucial areas for improvement in developing novel therapeutic approaches for GLA-related diseases. In conclusion, this review underscores the importance of exploring additional mechanisms within the GLA to gain a deeper understanding that could aid in preventing and treating a wide spectrum of lung diseases.
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Affiliation(s)
- Mariam Wed Eladham
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Balachandar Selvakumar
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - Narjes Saheb Sharif-Askari
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Fatemeh Saheb Sharif-Askari
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Department of Pharmacy Practice and Pharmaceutics, College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
| | | | - Rabih Halwani
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Prince Abdullah Ben Khaled Celiac Disease Research Chair, Department of Pediatrics, Faculty of Medicine, King Saud University, Saudi Arabia
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7
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Kleniewska P, Kopa-Stojak PN, Hoffmann A, Pawliczak R. The potential immunomodulatory role of the gut microbiota in the pathogenesis of asthma: an in vitro study. Sci Rep 2023; 13:19721. [PMID: 37957277 PMCID: PMC10643691 DOI: 10.1038/s41598-023-47003-0] [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: 05/16/2023] [Accepted: 11/07/2023] [Indexed: 11/15/2023] Open
Abstract
The aim of this study was to investigate the influence of Bacteroides vulgatus (BV), Clostridium perfringens (CP), Parabacteroides distasonis (PD) and Ruminococcus albus (RA) lysates on secretion of selected cytokines by PBMC, MDM and HT-29 cells, as well as to determine the potential mechanisms of their action in the development of asthma. Enzyme-linked immunosorbent assays were used to analyze the effect of BV, CP, PD and RA lysates on the secretion of IL-1β, IL-6, IL-10 and TNF-α by human PBMC, MDM and HT-29 cells. BV and CP lysates significantly lowered IL-1β secretion by MDM vs. control (p < 0.05 and p < 0.001 respectively) but only at a dose of 400 µg lysate. The secretions of IL-6 by PBMC and MDM were elevated significantly above control values (p < 0.05) after administration of CP and PD lysates. BV, CP and PD lysates (100 µg) significantly increased IL-10 secretion by PBMC vs. control (p < 0.05). CP, PD and RA lysates (400 µg) significantly increased IL-10 secretion by MDM vs. control (p < 0.001). BV lysate (400 µg) also significantly increased IL-10 secretion by MDM as compared to control (p < 0.05). In PBMC and MDM, the production levels of the anti-inflammatory cytokine were increased by all the bacterial lysates used in a dose-dependent manner.
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Affiliation(s)
- Paulina Kleniewska
- Department of Immunopathology, Faculty of Medicine, Medical University of Lodz, Zeligowskiego 7/9, 90-752, Lodz, Poland
| | - Paulina Natalia Kopa-Stojak
- Department of Immunopathology, Faculty of Medicine, Medical University of Lodz, Zeligowskiego 7/9, 90-752, Lodz, Poland
| | - Arkadiusz Hoffmann
- Department of Immunopathology, Faculty of Medicine, Medical University of Lodz, Zeligowskiego 7/9, 90-752, Lodz, Poland
| | - Rafał Pawliczak
- Department of Immunopathology, Faculty of Medicine, Medical University of Lodz, Zeligowskiego 7/9, 90-752, Lodz, Poland.
- Department of Immunopathology, Faculty of Medicine, Medical University of Lodz, Zeligowskiego 7/9, bldg 2, Rm 177, 90-752, Lodz, Poland.
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Monga N, Sharma S, Bhatia R, Bishnoi M, Kiran Kondepudi K, Naura AS. Immunomodulatory action of synbiotic comprising of newly isolated lactic acid producing bacterial strains against allergic asthma in mice. Cell Immunol 2023; 393-394:104786. [PMID: 37984277 DOI: 10.1016/j.cellimm.2023.104786] [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: 06/22/2023] [Revised: 10/04/2023] [Accepted: 11/09/2023] [Indexed: 11/22/2023]
Abstract
Given the reported role of gut-microbiota in asthma pathogenesis, the present work was carried to evaluate immunomodulatory action of newly isolated lactic acid producing bacterial strains Bifidobacterium breve Bif11 and Lactiplantibacillus plantarum LAB31 against asthma using ovalbumin (OVA) based mouse model. Our results show that both strains modulate Th2 immune response potentially through production of short chain fatty acids (SCFAs), resulting in suppression of OVA-induced airway inflammation. Furthermore, synbiotic comprising of both strains and prebiotic, Isomaltooligosaccharide exhibited superior potential in amelioration of OVA-induced airway inflammation through improved modulation of Th2 immune response. Further, synbiotic protects against OVA-induced mucus hyper-production and airway-hyperresponsiveness. Such protection was associated with normalization of gut microbiome and enhanced production of SCFAs in cecum which correlates closely with population of T-regulatory cells in spleen. Overall, our novel synbiotic possesses the ability to fine-tune the immune response for providing protection against allergic asthma.
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Affiliation(s)
- Naina Monga
- Department of Biochemistry, Panjab University, Chandigarh 160014, India
| | - Shikha Sharma
- Healthy Gut Research Group, Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute, Mohali, India; Adjunct Faculty, Department of Biotechnology, Panjab University, Chandigarh 160014, India
| | - Ruchika Bhatia
- Healthy Gut Research Group, Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute, Mohali, India; Adjunct Faculty, Department of Biotechnology, Panjab University, Chandigarh 160014, India
| | - Mahendra Bishnoi
- Healthy Gut Research Group, Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute, Mohali, India; Adjunct Faculty, Department of Biotechnology, Panjab University, Chandigarh 160014, India; Adjunct Faculty, Regional Centre for Biotechnology, Faridabad, India
| | - Kanthi Kiran Kondepudi
- Healthy Gut Research Group, Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute, Mohali, India; Adjunct Faculty, Department of Biotechnology, Panjab University, Chandigarh 160014, India; Adjunct Faculty, Regional Centre for Biotechnology, Faridabad, India.
| | - Amarjit S Naura
- Department of Biochemistry, Panjab University, Chandigarh 160014, India.
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Schmid AM, Razim A, Wysmołek M, Kerekes D, Haunstetter M, Kohl P, Brazhnikov G, Geissler N, Thaler M, Krčmářová E, Šindelář M, Weinmayer T, Hrdý J, Schmidt K, Nejsum P, Whitehead B, Palmfeldt J, Schild S, Inić-Kanada A, Wiedermann U, Schabussova I. Extracellular vesicles of the probiotic bacteria E. coli O83 activate innate immunity and prevent allergy in mice. Cell Commun Signal 2023; 21:297. [PMID: 37864211 PMCID: PMC10588034 DOI: 10.1186/s12964-023-01329-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 09/21/2023] [Indexed: 10/22/2023] Open
Abstract
BACKGROUND E. coli O83 (Colinfant Newborn) is a Gram-negative (G-) probiotic bacterium used in the clinic. When administered orally, it reduces allergic sensitisation but not allergic asthma. Intranasal administration offers a non-invasive and convenient delivery method. This route bypasses the gastrointestinal tract and provides direct access to the airways, which are the target of asthma prevention. G- bacteria such as E. coli O83 release outer membrane vesicles (OMVs) to communicate with the environment. Here we investigate whether intranasally administered E. coli O83 OMVs (EcO83-OMVs) can reduce allergic airway inflammation in mice. METHODS EcO83-OMVs were isolated by ultracentrifugation and characterised their number, morphology (shape and size), composition (proteins and lipopolysaccharide; LPS), recognition by innate receptors (using transfected HEK293 cells) and immunomodulatory potential (in naïve splenocytes and bone marrow-derived dendritic cells; BMDCs). Their allergy-preventive effect was investigated in a mouse model of ovalbumin-induced allergic airway inflammation. RESULTS EcO83-OMVs are spherical nanoparticles with a size of about 110 nm. They contain LPS and protein cargo. We identified a total of 1120 proteins, 136 of which were enriched in OMVs compared to parent bacteria. Proteins from the flagellum dominated. OMVs activated the pattern recognition receptors TLR2/4/5 as well as NOD1 and NOD2. EcO83-OMVs induced the production of pro- and anti-inflammatory cytokines in splenocytes and BMDCs. Intranasal administration of EcO83-OMVs inhibited airway hyperresponsiveness, and decreased airway eosinophilia, Th2 cytokine production and mucus secretion. CONCLUSIONS We demonstrate for the first time that intranasally administered OMVs from probiotic G- bacteria have an anti-allergic effect. Our study highlights the advantages of OMVs as a safe platform for the prophylactic treatment of allergy. Video Abstract.
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Affiliation(s)
- Anna Marlene Schmid
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090, Vienna, Austria
| | - Agnieszka Razim
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090, Vienna, Austria
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Magdalena Wysmołek
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090, Vienna, Austria
| | - Daniela Kerekes
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090, Vienna, Austria
| | - Melissa Haunstetter
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090, Vienna, Austria
| | - Paul Kohl
- Institute of Molecular Biosciences, Karl-Franzens-University, Graz, Austria
| | - Georgii Brazhnikov
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090, Vienna, Austria
| | - Nora Geissler
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090, Vienna, Austria
| | - Michael Thaler
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090, Vienna, Austria
| | - Eliška Krčmářová
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University, and General University Hospital, Prague, Czech Republic
| | - Martin Šindelář
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Tamara Weinmayer
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090, Vienna, Austria
| | - Jiří Hrdý
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University, and General University Hospital, Prague, Czech Republic
| | - Katy Schmidt
- Core Facility for Cell Imaging and Ultrastructural Research, Faculty of Life Sciences, University of Vienna, Vienna, Austria
| | - Peter Nejsum
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Bradley Whitehead
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Johan Palmfeldt
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Stefan Schild
- Institute of Molecular Biosciences, Karl-Franzens-University, Graz, Austria
- BioTechMed, Graz, Austria
- Field of Excellence Biohealth - University of Graz, Graz, Austria
| | - Aleksandra Inić-Kanada
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090, Vienna, Austria
| | - Ursula Wiedermann
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090, Vienna, Austria
| | - Irma Schabussova
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090, Vienna, Austria.
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Pat Y, Ogulur I, Yazici D, Mitamura Y, Cevhertas L, Küçükkase OC, Mesisser SS, Akdis M, Nadeau K, Akdis CA. Effect of altered human exposome on the skin and mucosal epithelial barrier integrity. Tissue Barriers 2023; 11:2133877. [PMID: 36262078 PMCID: PMC10606824 DOI: 10.1080/21688370.2022.2133877] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/23/2022] [Accepted: 08/27/2022] [Indexed: 10/24/2022] Open
Abstract
Pollution in the world and exposure of humans and nature to toxic substances is continuously worsening at a rapid pace. In the last 60 years, human and domestic animal health has been challenged by continuous exposure to toxic substances and pollutants because of uncontrolled growth, modernization, and industrialization. More than 350,000 new chemicals have been introduced to our lives, mostly without any reasonable control of their health effects and toxicity. A plethora of studies show exposure to these harmful substances during this period with their implications on the skin and mucosal epithelial barrier and increasing prevalence of allergic and autoimmune diseases in the context of the "epithelial barrier hypothesis". Exposure to these substances causes an epithelial injury with peri-epithelial inflammation, microbial dysbiosis and bacterial translocation to sub-epithelial areas, and immune response to dysbiotic bacteria. Here, we provide scientific evidence on the altered human exposome and its impact on epithelial barriers.
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Affiliation(s)
- Yagiz Pat
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Department of Medical Microbiology, Faculty of Medicine, Aydin Menderes University, Turkey
| | - Ismail Ogulur
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Duygu Yazici
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Yasutaka Mitamura
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Lacin Cevhertas
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Department of Medical Immunology, Institute of Health Sciences, Bursa Uludag University, Turkey
| | - Ozan C Küçükkase
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Sanne S Mesisser
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Kari Nadeau
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University and Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford University, Stanford, CA, USA
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Stanford University, Stanford, CA, USA
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
- Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland
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11
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Alhasan MM, Hölsken O, Duerr C, Helfrich S, Branzk N, Philipp A, Leitz D, Duerr J, Almousa Y, Barrientos G, Mohn WW, Gamradt S, Conrad ML. Antibiotic use during pregnancy is linked to offspring gut microbial dysbiosis, barrier disruption, and altered immunity along the gut-lung axis. Eur J Immunol 2023; 53:e2350394. [PMID: 37431194 DOI: 10.1002/eji.202350394] [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: 01/13/2023] [Revised: 05/16/2023] [Accepted: 06/21/2023] [Indexed: 07/12/2023]
Abstract
Antibiotic use during pregnancy is associated with increased asthma risk in children. Since approximately 25% of women use antibiotics during pregnancy, it is important to identify the pathways involved in this phenomenon. We investigate how mother-to-offspring transfer of antibiotic-induced gut microbial dysbiosis influences immune system development along the gut-lung axis. Using a mouse model of maternal antibiotic exposure during pregnancy, we immunophenotyped offspring in early life and after asthma induction. In early life, prenatal-antibiotic exposed offspring exhibited gut microbial dysbiosis, intestinal inflammation (increased fecal lipocalin-2 and IgA), and dysregulated intestinal ILC3 subtypes. Intestinal barrier dysfunction in the offspring was indicated by a FITC-dextran intestinal permeability assay and circulating lipopolysaccharide. This was accompanied by increased T-helper (Th)17 cell percentages in the offspring's blood and lungs in both early life and after allergy induction. Lung tissue additionally showed increased percentages of RORγt T-regulatory (Treg) cells at both time points. Our investigation of the gut-lung axis identifies early-life gut dysbiosis, intestinal inflammation, and barrier dysfunction as a possible developmental programming event promoting increased expression of RORγt in blood and lung CD4+ T cells that may contribute to increased asthma risk.
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Affiliation(s)
- Moumen M Alhasan
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Oliver Hölsken
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Department of Anesthesiology and Intensive Care Medicine, Charité Campus Benjamin Franklin, Berlin, Germany
- German Rheuma Research Center Berlin (DRFZ), Mucosal and Developmental Immunology, Berlin, Germany
- Heidelberg Biosciences International Graduate School (HBIGS), Heidelberg University, Heidelberg, Germany
| | - Claudia Duerr
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Sofia Helfrich
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Nora Branzk
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Alina Philipp
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Dominik Leitz
- Department of Pediatric Pulmonology, Immunology and Critical Care Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Julia Duerr
- Department of Pediatric Pulmonology, Immunology and Critical Care Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Yahia Almousa
- Laboratory of Molecular Tumor Pathology, Institute of Pathology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Gabriela Barrientos
- Laboratorio de Medicina Experimental, Hospital Alemán. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - William W Mohn
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Stefanie Gamradt
- Department of Psychiatry and Psychotherapy, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Melanie L Conrad
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
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12
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Mallick I, Panchal P, Kadam S, Mohite P, Scheele J, Seiz W, Agarwal A, Sharma OP. In-silico identification and prioritization of therapeutic targets of asthma. Sci Rep 2023; 13:15706. [PMID: 37735578 PMCID: PMC10514284 DOI: 10.1038/s41598-023-42803-w] [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: 03/01/2023] [Accepted: 09/14/2023] [Indexed: 09/23/2023] Open
Abstract
Asthma is a "common chronic disorder that affects the lungs causing variable and recurring symptoms like repeated episodes of wheezing, breathlessness, chest tightness and underlying inflammation. The interaction of these features of asthma determines the clinical manifestations and severity of asthma and the response to treatment" [cited from: National Heart, Lung, and Blood Institute. Expert Panel 3 Report. Guidelines for the Diagnosis and Management of Asthma 2007 (EPR-3). Available at: https://www.ncbi.nlm.nih.gov/books/NBK7232/ (accessed on January 3, 2023)]. As per the WHO, 262 million people were affected by asthma in 2019 that leads to 455,000 deaths ( https://www.who.int/news-room/fact-sheets/detail/asthma ). In this current study, our aim was to evaluate thousands of scientific documents and asthma associated omics datasets to identify the most crucial therapeutic target for experimental validation. We leveraged the proprietary tool Ontosight® Discover to annotate asthma associated genes and proteins. Additionally, we also collected and evaluated asthma related patient datasets through bioinformatics and machine learning based approaches to identify most suitable targets. Identified targets were further evaluated based on the various biological parameters to scrutinize their candidature for the ideal therapeutic target. We identified 7237 molecular targets from published scientific documents, 2932 targets from genomic structured databases and 7690 dysregulated genes from the transcriptomics and 560 targets from genomics mutational analysis. In total, 18,419 targets from all the desperate sources were analyzed and evaluated though our approach to identify most promising targets in asthma. Our study revealed IL-13 as one of the most important targets for asthma with approved drugs on the market currently. TNF, VEGFA and IL-18 were the other top targets identified to be explored for therapeutic benefit in asthma but need further clinical testing. HMOX1, ITGAM, DDX58, SFTPD and ADAM17 were the top novel targets identified for asthma which needs to be validated experimentally.
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Affiliation(s)
- Ishita Mallick
- Innoplexus Consulting Pvt. Ltd, 7th Floor, Midas Tower, Next to STPI Building, Phase 1, Hinjewadi Rajiv Gandhi Infotech Park, Hinjawadi, Pune, Maharashtra, 411057, India
| | - Pradnya Panchal
- Innoplexus Consulting Pvt. Ltd, 7th Floor, Midas Tower, Next to STPI Building, Phase 1, Hinjewadi Rajiv Gandhi Infotech Park, Hinjawadi, Pune, Maharashtra, 411057, India
| | - Smita Kadam
- Innoplexus Consulting Pvt. Ltd, 7th Floor, Midas Tower, Next to STPI Building, Phase 1, Hinjewadi Rajiv Gandhi Infotech Park, Hinjawadi, Pune, Maharashtra, 411057, India
| | - Priyanka Mohite
- Innoplexus Consulting Pvt. Ltd, 7th Floor, Midas Tower, Next to STPI Building, Phase 1, Hinjewadi Rajiv Gandhi Infotech Park, Hinjawadi, Pune, Maharashtra, 411057, India
| | - Jürgen Scheele
- Innoplexus AG, Frankfurter Str. 27, 65760, Eschborn, Germany
| | - Werner Seiz
- Innoplexus AG, Frankfurter Str. 27, 65760, Eschborn, Germany
| | - Amit Agarwal
- Innoplexus Consulting Pvt. Ltd, 7th Floor, Midas Tower, Next to STPI Building, Phase 1, Hinjewadi Rajiv Gandhi Infotech Park, Hinjawadi, Pune, Maharashtra, 411057, India
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13
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Hsu UH, Chiang BL. γδ T Cells and Allergic Diseases. Clin Rev Allergy Immunol 2023; 65:172-182. [PMID: 37395986 DOI: 10.1007/s12016-023-08966-0] [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] [Accepted: 06/27/2023] [Indexed: 07/04/2023]
Abstract
Gamma-delta (γδ) T cells play an essential role in allergic diseases and have emerged as a potential treatment target in recent decades. To clarify the effects of γδ T cells on atopic illnesses, we reviewed the literature on the physical roles and functions of various subsets of γδ T cells, including type 1 T helper (Th1)-like, type 2 T helper- (Th2)-like, and type 17 T helper (Th17)-like γδ T cells. Mouse Vγ1 T cells increase interleukin (IL)-4 levels and trigger B cell class switching and immunoglobulin E production. Meanwhile, mouse Vγ4 T cells and human CD8lowVδ1 T cells secrete interferon-γ and exert an anti-allergy effect similar to that of Th1 cells. Moreover, mouse Vγ6 T cells produce IL-17A, while Th17-like γδ T cells enhance neutrophil and eosinophil infiltration in the acute phase of inflammation, but exert anti-inflammatory effects in the chronic phase. Human Vγ9δ2 T cells may exhibit Th1- or Th2-like characteristics in response to certain types of stimulation. In addition, the microbiota can modulate epithelial γδ T cell survival through aryl hydrocarbon receptors; these γδ T cells play crucial roles in the repair of epithelial damage, antibacterial protection, antigen tolerance, and effects of dysbiosis on allergic diseases.
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Affiliation(s)
- Uei-Hsiang Hsu
- Department of Pediatrics, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu City, Taiwan
| | - Bor-Luen Chiang
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan.
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.
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14
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Bozorgmehr T, Boutin RCT, Woodward SE, Donald K, Chow JM, Buck RH, Finlay BB. Early Life Exposure to Human Milk Oligosaccharides Reduces Allergic Response in a Murine Asthma Model. J Immunol Res 2023; 2023:9603576. [PMID: 37545544 PMCID: PMC10404156 DOI: 10.1155/2023/9603576] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/27/2023] [Accepted: 06/29/2023] [Indexed: 08/08/2023] Open
Abstract
Background Studies suggest that early-life gut microbiota composition and intestinal short-chain fatty acids (SCFAs) are linked to future asthma susceptibility. Furthermore, infancy offers a critical time window to modulate the microbiota and associated metabolites through diet-microbe interactions to promote infant health. Human milk oligosaccharides (HMOs), nondigestible carbohydrates abundant in breast milk, are prebiotics selectively metabolized by gut microbiota that consequently modify microbiome composition and SCFA production. Methods Using a house dust mite mouse model of allergy, we investigated the impacts of early oral treatment of pups with biologically relevant doses of 2'-fucosyllactose (2'-FL) and 6'-sialyllactose (6'-SL), two of the most abundant HMOs in human milk, in amelioration of allergic airway disease severity. Results We found that administration of 2'-FL and 6'-SL during early life reduced lung histopathology scores, circulating IgE, cytokine levels, and inflammatory cell infiltration, all hallmark symptoms of allergic asthma. HMO supplementation also increased the relative abundance of intestinal Bacteroidetes and Clostridia, known SCFA producers within the gut. Indeed, we detected increased SCFA concentrations in both the intestine and blood of adult mice who received HMOs prior to weaning. Conclusion We propose a model in which orally administered HMOs delivered during early life shift the microbiota toward increased production of SCFAs, which dampens the allergic immune responses behind allergy and asthma. Overall, these data suggest the potential for HMO supplementation to protect infants against asthma development later in life, with possible benefits against additional atopic diseases such as eczema and food allergies.
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Affiliation(s)
- Tahereh Bozorgmehr
- Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada
| | - Rozlyn C. T. Boutin
- Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada
| | - Sarah E. Woodward
- Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada
| | - Katherine Donald
- Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada
| | - Jo May Chow
- Nutrition Division, Abbott Laboratories, Columbus, OH, USA
| | | | - B. Brett Finlay
- Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC, Canada
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15
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Mazumder MHH, Gandhi J, Majumder N, Wang L, Cumming RI, Stradtman S, Velayutham M, Hathaway QA, Shannahan J, Hu G, Nurkiewicz TR, Tighe RM, Kelley EE, Hussain S. Lung-gut axis of microbiome alterations following co-exposure to ultrafine carbon black and ozone. Part Fibre Toxicol 2023; 20:15. [PMID: 37085867 PMCID: PMC10122302 DOI: 10.1186/s12989-023-00528-8] [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: 01/26/2023] [Accepted: 04/17/2023] [Indexed: 04/23/2023] Open
Abstract
BACKGROUND Microbial dysbiosis is a potential mediator of air pollution-induced adverse outcomes. However, a systemic comparison of the lung and gut microbiome alterations and lung-gut axis following air pollution exposure is scant. In this study, we exposed male C57BL/6J mice to inhaled air, CB (10 mg/m3), O3 (2 ppm) or CB + O3 mixture for 3 h/day for either one day or four consecutive days and were euthanized 24 h post last exposure. The lung and gut microbiome were quantified by 16 s sequencing. RESULTS Multiple CB + O3 exposures induced an increase in the lung inflammatory cells (neutrophils, eosinophils and B lymphocytes), reduced absolute bacterial load in the lungs and increased load in the gut. CB + O3 exposure was more potent as it decreased lung microbiome alpha diversity just after a single exposure. CB + O3 co-exposure uniquely increased Clostridiaceae and Prevotellaceae in the lungs. Serum short chain fatty acids (SCFA) (acetate and propionate) were increased significantly only after CB + O3 co-exposure. A significant increase in SCFA producing bacterial families (Ruminococcaceae, Lachnospiraceae, and Eubacterium) were also observed in the gut after multiple exposures. Co-exposure induced significant alterations in the gut derived metabolite receptors/mediator (Gcg, Glp-1r, Cck) mRNA expression. Oxidative stress related mRNA expression in lungs, and oxidant levels in the BALF, serum and gut significantly increased after CB + O3 exposures. CONCLUSION Our study confirms distinct gut and lung microbiome alterations after CB + O3 inhalation co-exposure and indicate a potential homeostatic shift in the gut microbiome to counter deleterious impacts of environmental exposures on metabolic system.
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Affiliation(s)
- Md Habibul Hasan Mazumder
- Department of Physiology, Pharmacology, and Toxicology, Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
- Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
| | - Jasleen Gandhi
- Department of Microbiology, School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
| | - Nairrita Majumder
- Department of Physiology, Pharmacology, and Toxicology, Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
- Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
| | - Lei Wang
- Department of Microbiology, School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
| | - Robert Ian Cumming
- Department of Medicine, Duke University Medical Center, Durham, NC, 2927, USA
| | - Sydney Stradtman
- School of Health Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Murugesan Velayutham
- Department of Physiology, Pharmacology, and Toxicology, Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
- Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
- Department of Biochemistry and Molecular Medicine, School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Quincy A Hathaway
- Heart and Vascular Institute, School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Jonathan Shannahan
- School of Health Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Gangqing Hu
- Department of Microbiology, School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
| | - Timothy R Nurkiewicz
- Department of Physiology, Pharmacology, and Toxicology, Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
- Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
| | - Robert M Tighe
- Department of Medicine, Duke University Medical Center, Durham, NC, 2927, USA
| | - Eric E Kelley
- Department of Physiology, Pharmacology, and Toxicology, Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
- Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA
| | - Salik Hussain
- Department of Physiology, Pharmacology, and Toxicology, Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA.
- Center for Inhalation Toxicology (iTOX), School of Medicine, West Virginia University, Morgantown, WV, 26506, USA.
- Department of Microbiology, School of Medicine, West Virginia University, Morgantown, WV, 26506, USA.
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16
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Panumasvivat J, Pratchayasakul W, Sapbamrer R, Chattipakorn N, Chattipakorn SC. The possible role of particulate matter on the respiratory microbiome: evidence from in vivo to clinical studies. Arch Toxicol 2023; 97:913-930. [PMID: 36781433 DOI: 10.1007/s00204-023-03452-0] [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: 11/30/2022] [Accepted: 02/02/2023] [Indexed: 02/15/2023]
Abstract
Environmental pollution, which contains ambient particulate matter, has been shown to have a significant impact on human health and longevity over the past 30 years. Recent studies clearly showed that exposure to particulate matter directly caused adverse effects on the respiratory system via various mechanisms including the accumulation of free radical peroxidation, the imbalance of intercellular calcium regulation, and inflammation, resulting in respiratory diseases. Recent evidence showed the importance of the role of the respiratory microbiome on lung immunity and lung development. In addition, previous studies have confirmed that several chronic respiratory diseases were associated with an alteration in the respiratory microbiome. However, there is still a lack of knowledge with regard to the changes in the respiratory microbiome with regard to the role of particulate matter exposure in respiratory diseases. Therefore, this review aims to summarize and discuss all the in vivo to clinical evidence which investigated the effect of particulate matter exposure on the respiratory microbiome and respiratory diseases. Any contradictory findings are incorporated and discussed. A summary of all these pieces of evidence may offer an insight into a therapeutic approach for the respiratory diseases related to particulate matter exposure and respiratory microbiome.
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Affiliation(s)
- Jinjuta Panumasvivat
- Department of Community Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Wasana Pratchayasakul
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
- Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Ratana Sapbamrer
- Department of Community Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Nipon Chattipakorn
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
- Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Siriporn C Chattipakorn
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.
- Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand.
- Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai, 50200, Thailand.
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17
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Alsayed AR, Abed A, Khader HA, Al-Shdifat LMH, Hasoun L, Al-Rshaidat MMD, Alkhatib M, Zihlif M. Molecular Accounting and Profiling of Human Respiratory Microbial Communities: Toward Precision Medicine by Targeting the Respiratory Microbiome for Disease Diagnosis and Treatment. Int J Mol Sci 2023; 24:4086. [PMID: 36835503 PMCID: PMC9966333 DOI: 10.3390/ijms24044086] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/05/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
The wide diversity of microbiota at the genera and species levels across sites and individuals is related to various causes and the observed differences between individuals. Efforts are underway to further understand and characterize the human-associated microbiota and its microbiome. Using 16S rDNA as a genetic marker for bacterial identification improved the detection and profiling of qualitative and quantitative changes within a bacterial population. In this light, this review provides a comprehensive overview of the basic concepts and clinical applications of the respiratory microbiome, alongside an in-depth explanation of the molecular targets and the potential relationship between the respiratory microbiome and respiratory disease pathogenesis. The paucity of robust evidence supporting the correlation between the respiratory microbiome and disease pathogenesis is currently the main challenge for not considering the microbiome as a novel druggable target for therapeutic intervention. Therefore, further studies are needed, especially prospective studies, to identify other drivers of microbiome diversity and to better understand the changes in the lung microbiome along with the potential association with disease and medications. Thus, finding a therapeutic target and unfolding its clinical significance would be crucial.
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Affiliation(s)
- Ahmad R. Alsayed
- Department of Clinical Pharmacy and Therapeutics, Faculty of Pharmacy, Applied Science Private University, Amman 11931, Jordan
| | - Anas Abed
- Pharmacological and Diagnostic Research Centre, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman 11931, Jordan
| | - Heba A. Khader
- Department of Clinical Pharmacy and Pharmacy Practice, Faculty of Pharmaceutical Sciences, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan
| | - Laith M. H. Al-Shdifat
- Department of Pharmaceutical Chemistry and Pharmacognosy, Faculty of Pharmacy, Applied Science Private University, Amman 11931, Jordan
| | - Luai Hasoun
- Department of Clinical Pharmacy and Therapeutics, Faculty of Pharmacy, Applied Science Private University, Amman 11931, Jordan
| | - Mamoon M. D. Al-Rshaidat
- Laboratory for Molecular and Microbial Ecology (LaMME), Department of Biological Sciences, School of Sciences, The University of Jordan, Amman 11942, Jordan
| | - Mohammad Alkhatib
- Department of Experimental Medicine, University of Rome “Tor Vergata”, 00133 Roma, Italy
| | - Malek Zihlif
- Department of Pharmacology, School of Medicine, The University of Jordan, Amman 11942, Jordan
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18
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Compositional differences between gut microbiota of adult patients with asthma and healthy controls. Postepy Dermatol Alergol 2023; 40:142-149. [PMID: 36909900 PMCID: PMC9993198 DOI: 10.5114/ada.2022.117998] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/17/2022] [Indexed: 11/17/2022] Open
Abstract
Introduction Asthma is a complex and multifactorial disorder, with severe public health implications. Over the last several years, our knowledge in the field of human gut microbiota has expanded and allowed us to understand its crucial role in the development of many diseases. Aim To analyse the nature of human gut microbiota patterns among patients with asthma compared to healthy controls. Material and methods Composition of the complex gut microbiota was analysed in faecal samples from 13 asthma patients and 7 healthy volunteers using Next-Generation Sequencing technology (NGS). The Kruskal-Wallis Analysis of Variance (ANOVA) and Mann-Whitney tests were used to compare the above two groups of subjects. Results The composition of the gut microbiota of asthma patients differed from that of healthy volunteers at each of the analysed levels (p < 0.05). Compared to healthy individuals, bacterial diversity was significantly lowered among the asthma group, which is the evidence of gut microbiota depletion in asthma patients. The analysis of beta diversity showed that the gut community compositions of asthma are widely dispersed in contrast to the tight clustering observed in the control group. Finally, the similarity index was found to be lower in the inter-group comparison than in the intra-group comparison, which confirmed changes in the gut microbial composition in the asthmatic group. Conclusions The study revealed significant differences in the human gut microbiome composition between asthma patients and the healthy control group.
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Valverde-Molina J, García-Marcos L. Microbiome and Asthma: Microbial Dysbiosis and the Origins, Phenotypes, Persistence, and Severity of Asthma. Nutrients 2023; 15:nu15030486. [PMID: 36771193 PMCID: PMC9921812 DOI: 10.3390/nu15030486] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 01/19/2023] Open
Abstract
The importance of the microbiome, and of the gut-lung axis in the origin and persistence of asthma, is an ongoing field of investigation. The process of microbial colonisation in the first three years of life is fundamental for health, with the first hundred days of life being critical. Different factors are associated with early microbial dysbiosis, such as caesarean delivery, artificial lactation and antibiotic therapy, among others. Longitudinal cohort studies on gut and airway microbiome in children have found an association between microbial dysbiosis and asthma at later ages of life. A low α-diversity and relative abundance of certain commensal gut bacterial genera in the first year of life are associated with the development of asthma. Gut microbial dysbiosis, with a lower abundance of Phylum Firmicutes, could be related with increased risk of asthma. Upper airway microbial dysbiosis, especially early colonisation by Moraxella spp., is associated with recurrent viral infections and the development of asthma. Moreover, the bacteria in the respiratory system produce metabolites that may modify the inception of asthma and is progression. The role of the lung microbiome in asthma development has yet to be fully elucidated. Nevertheless, the most consistent finding in studies on lung microbiome is the increased bacterial load and the predominance of proteobacteria, especially Haemophilus spp. and Moraxella catarrhalis. In this review we shall update the knowledge on the association between microbial dysbiosis and the origins of asthma, as well as its persistence, phenotypes, and severity.
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Affiliation(s)
- José Valverde-Molina
- Department of Paediatrics, Santa Lucía General University Hospital, 30202 Cartagena, Spain
| | - Luis García-Marcos
- Paediatric Allergy and Pulmonology Units, Virgen de la Arrixaca University Children’s Hospital, University of Murcia and IMIB Biomedical Research Institute, 20120 Murcia, Spain
- Correspondence:
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20
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Hume-Nixon M, Ratu T, Clark S, Nguyen CD, Neal EFG, Pell CL, Bright K, Watts E, Hart J, Mulholland K, Fong J, Rafai E, Sakumeni K, Tuibeqa I, Satzke C, Steer A, Russell FM. Prevention of young infant infections using oral azithromycin in labour in Fiji (Bulabula MaPei): study protocol of a randomised control trial. BMJ Open 2022; 12:e061157. [PMID: 36456016 PMCID: PMC9716885 DOI: 10.1136/bmjopen-2022-061157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
INTRODUCTION Infections are a leading cause of neonatal mortality globally and can be transmitted from mother-to-child vertically or horizontally. Fiji has higher rates of serious neonatal infections and infant skin and soft tissue infections (SSTIs) than high-income countries. Research from the Gambia found that a single dose of oral azithromycin in labour decreased bacterial carriage and infections in mothers and infants, particularly infant skin infections. The Bulabula MaPei clinical trial evaluates the safety and efficacy of a single dose of azithromycin in labour in reducing the incidence of maternal and infant SSTIs and other infections and the impact on bacterial carriage. It will also describe the effect of azithromycin on antimicrobial (AMR) resistance, the maternal and infant microbiome, and infant dysbiosis. METHODS AND ANALYSIS We are conducting a blinded, placebo-controlled randomised clinical trial administering 2 g of oral azithromycin, or placebo, given to healthy, pregnant women (≥18 years) in labour in Suva, Fiji. The primary outcome is the cumulative incidence of SSTIs in infants by 3 months of age. Secondary outcomes include the incidence of other infant and maternal infections, and safety and tolerability of azithromycin in mother and infant. Following informed consent, 2110 pregnant women will be randomised in a 1:1 ratio, with all study staff and participants masked to group allocation. Mother/infant pairs will be followed up for 12 months over six visits collecting clinical data on infections, antimicrobial use, safety and anthropometrics, in addition to nasopharyngeal, oropharyngeal, rectovaginal and vaginal swabs, maternal breastmilk and infant stool samples, in order to compare bacterial carriage, AMR rates and microbiome. Recruitment for Bulabula MaPei started in June 2019. ETHICS AND DISSEMINATION This trial was approved and is being conducted according to the protocol approved by The Royal Children's Hospital Human Research Ethics Committee, Australia, and the Fiji National Health Research and Ethics Review Committee. The findings of this study will be disseminated in peer-reviewed journals and presented at conferences. TRIAL REGISTRATION NUMBER NCT03925480.
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Affiliation(s)
- Maeve Hume-Nixon
- Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
- Asia-Pacific Health, Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Tupou Ratu
- Asia-Pacific Health, Murdoch Children's Research Institute, Suva, Fiji
| | - Stephanie Clark
- Department of Paediatrics, Colonial War Memorial Hospital, Suva, Fiji
| | - Cattram Duong Nguyen
- Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
- Asia-Pacific Health, Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Eleanor F G Neal
- Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
- Asia-Pacific Health, Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Casey L Pell
- Translational Microbiology, Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Kathryn Bright
- Asia-Pacific Health, Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Emma Watts
- Asia-Pacific Health, Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - John Hart
- Asia-Pacific Health, Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Kim Mulholland
- New Vaccines, Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - James Fong
- Ministry of Health and Medical Services, Suva, Fiji
| | - Eric Rafai
- Ministry of Health and Medical Services, Suva, Fiji
| | | | - Ilisapeci Tuibeqa
- Department of Paediatrics, Colonial War Memorial Hospital, Suva, Fiji
| | - Catherine Satzke
- Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
- Translational Microbiology, Murdoch Children's Research Institute, Parkville, Victoria, Australia
- Department of Microbiology and Immunology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Andrew Steer
- Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Paediatrics, Royal Children's Hospital, The University of Melbourne, Melbourne, Victoria, Australia
- Tropical Diseases Research Group, Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Fiona M Russell
- Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
- Asia-Pacific Health, Murdoch Children's Research Institute, Parkville, Victoria, Australia
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21
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Forde B, Yao L, Shaha R, Murphy S, Lunjani N, O'Mahony L. Immunomodulation by foods and microbes: Unravelling the molecular tango. Allergy 2022; 77:3513-3526. [PMID: 35892227 PMCID: PMC10087875 DOI: 10.1111/all.15455] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 07/15/2022] [Accepted: 07/23/2022] [Indexed: 01/28/2023]
Abstract
Metabolic health and immune function are intimately connected via diet and the microbiota. Nearly 90% of all immune cells in the body are associated with the gastrointestinal tract and these immune cells are continuously exposed to a wide range of microbes and microbial-derived compounds, with important systemic ramifications. Microbial dysbiosis has consistently been observed in patients with atopic dermatitis, food allergy and asthma and the molecular mechanisms linking changes in microbial populations with disease risk and disease endotypes are being intensively investigated. The discovery of novel bacterial metabolites that impact immune function is at the forefront of host-microbe research. Co-evolution of microbial communities within their hosts has resulted in intertwined metabolic pathways that affect physiological and pathological processes. However, recent dietary and lifestyle changes are thought to negatively influence interactions between microbes and their host. This review provides an overview of some of the critical metabolite-receptor interactions that have been recently described, which may underpin the immunomodulatory effects of the microbiota, and are of relevance for allergy, asthma and infectious diseases.
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Affiliation(s)
- Brian Forde
- APC Microbiome Ireland, UCC, Cork, Ireland.,School of Microbiology, UCC, Cork, Ireland
| | - Lu Yao
- APC Microbiome Ireland, UCC, Cork, Ireland.,School of Microbiology, UCC, Cork, Ireland
| | - Rupin Shaha
- APC Microbiome Ireland, UCC, Cork, Ireland.,School of Microbiology, UCC, Cork, Ireland
| | | | - Nonhlanhla Lunjani
- APC Microbiome Ireland, UCC, Cork, Ireland.,University of Cape Town, Cape Town, South Africa
| | - Liam O'Mahony
- APC Microbiome Ireland, UCC, Cork, Ireland.,School of Microbiology, UCC, Cork, Ireland.,Department of Medicine, UCC, Cork, Ireland
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22
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Angerami Almeida K, de Queiroz Andrade E, Burns G, Hoedt EC, Mattes J, Keely S, Collison A. The microbiota in eosinophilic esophagitis: A systematic review. J Gastroenterol Hepatol 2022; 37:1673-1684. [PMID: 35730344 PMCID: PMC9544137 DOI: 10.1111/jgh.15921] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/14/2022] [Accepted: 06/14/2022] [Indexed: 12/12/2022]
Abstract
Eosinophilic esophagitis (EoE) is an atopic disease of the esophagus that has shown a significant increase in incidence and prevalence in the last 20 years. The etiology of EoE is unclear, and few studies explore the esophageal microbiota in EoE. The local microbiome has been implicated in the pathogenesis of several allergic and inflammatory diseases, such as asthma and eczema. In this study, we performed a systematic review to evaluate differences in the microbiota profile of patients with EoE compared with controls. MEDLINE, Embase, Cochrane Library, Scopus, and CINAHL (Cumulative Index to Nursing and Allied Health Literature) databases were searched to identify studies investigating the microbiota composition in EoE. Three reviewers screened the articles for eligibility and quality. Seven articles underwent full-text review, and a narrative synthesis was undertaken. The microbiota of the mouth and esophagus are correlated. Patients with active EoE present increased esophageal microbial load and increased abundance in particular species, such as Haemophilus and Aggregatibacter. On the other hand, EoE patients present a decrease in Firmicutes. High microbial load and abundance of Haemophilus are observed in EoE patients, but little evidence exists to demonstrate their influence on inflammation and disease. Understanding microbial signatures in EoE might contribute to the development of novel therapeutic strategies.
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Affiliation(s)
- Kaylani Angerami Almeida
- School of Medicine and Public HealthUniversity of NewcastleNewcastleNew South WalesAustralia,Priority Research Centre GrowUpWell, Hunter Medical Research InstituteUniversity of NewcastleNewcastleNew South WalesAustralia,Viruses, Infection, Immunity, Vaccine and Asthma (VIVA) ProgramHunter Medical Research Institute (HMRI)New Lambton HeightsNew South WalesAustralia,NHMRC Centre of Research Excellence (CRE) in Digestive HealthThe University of NewcastleCallaghanNew South WalesAustralia
| | - Ediane de Queiroz Andrade
- School of Medicine and Public HealthUniversity of NewcastleNewcastleNew South WalesAustralia,Priority Research Centre GrowUpWell, Hunter Medical Research InstituteUniversity of NewcastleNewcastleNew South WalesAustralia,Viruses, Infection, Immunity, Vaccine and Asthma (VIVA) ProgramHunter Medical Research Institute (HMRI)New Lambton HeightsNew South WalesAustralia
| | - Grace Burns
- NHMRC Centre of Research Excellence (CRE) in Digestive HealthThe University of NewcastleCallaghanNew South WalesAustralia,School of Biomedical Sciences and Pharmacy, College of Health, Medicine and WellbeingThe University of NewcastleCallaghanNew South WalesAustralia
| | - Emily C Hoedt
- NHMRC Centre of Research Excellence (CRE) in Digestive HealthThe University of NewcastleCallaghanNew South WalesAustralia,School of Biomedical Sciences and Pharmacy, College of Health, Medicine and WellbeingThe University of NewcastleCallaghanNew South WalesAustralia
| | - Joerg Mattes
- School of Medicine and Public HealthUniversity of NewcastleNewcastleNew South WalesAustralia,Priority Research Centre GrowUpWell, Hunter Medical Research InstituteUniversity of NewcastleNewcastleNew South WalesAustralia,Viruses, Infection, Immunity, Vaccine and Asthma (VIVA) ProgramHunter Medical Research Institute (HMRI)New Lambton HeightsNew South WalesAustralia
| | - Simon Keely
- NHMRC Centre of Research Excellence (CRE) in Digestive HealthThe University of NewcastleCallaghanNew South WalesAustralia,School of Biomedical Sciences and Pharmacy, College of Health, Medicine and WellbeingThe University of NewcastleCallaghanNew South WalesAustralia
| | - Adam Collison
- School of Medicine and Public HealthUniversity of NewcastleNewcastleNew South WalesAustralia,Priority Research Centre GrowUpWell, Hunter Medical Research InstituteUniversity of NewcastleNewcastleNew South WalesAustralia,Viruses, Infection, Immunity, Vaccine and Asthma (VIVA) ProgramHunter Medical Research Institute (HMRI)New Lambton HeightsNew South WalesAustralia
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23
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Uwaezuoke SN, Ayuk AC, Eze JN, Odimegwu CL, Ndiokwelu CO, Eze IC. Postnatal probiotic supplementation can prevent and optimize treatment of childhood asthma and atopic disorders: A systematic review of randomized controlled trials. Front Pediatr 2022; 10:956141. [PMID: 36061384 PMCID: PMC9437454 DOI: 10.3389/fped.2022.956141] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 08/04/2022] [Indexed: 11/13/2022] Open
Abstract
Background Although several randomized controlled trials (RCTs) published over the past 5 years show that prenatal or postnatal probiotics may prevent or optimize the treatment of childhood asthma and atopic disorders, findings from the systematic reviews and meta-analyses of these studies appear inconsistent. More recent RCTs have focused on postnatal probiotics, and linked specific probiotic strains to better disease outcomes. Objective This systematic review aimed to determine if postnatal probiotics are as effective as prenatal probiotics in preventing or treating childhood asthma and atopic disorders. Methods We searched the PubMed, Medline, Google Scholar, and EMBASE databases for RCTs published within the past 5 years (from 2017 to 2022). We included only full-text RCTs on human subjects published in or translated into the English language. We retrieved relevant data items with a preconceived data-extraction form and assessed the methodological quality of the selected RCTs using the Cochrane Collaboration's tool for assessing the risk of bias in randomized trials. We qualitatively synthesized the retrieved data to determine any significant differences in study endpoints of the probiotic and placebo groups. Results A total of 1,320 participants (688 and 632 in the probiotic and placebo groups) from six RCTs were investigated. One RCT showed that early Lactobacillus rhamnosus GG (LGG) led to a reduction in the cumulative incidence rate of asthma. Another study demonstrated that mixed strains of Lactobacillus paracasei and Lactobacillus fermentum could support clinical improvement in children with asthma while one trial reported a significant reduction in the frequency of asthma exacerbations using a mixture of Ligilactobacillus salivarius and Bifidobacterium breve. Three trials showed that a combination of LGG and Bifidobacterium animalis subsp lactis, Lactobacillus rhamnosus alone, and a probiotic mixture of Lactobacillus ŁOCK strains improved clinical outcomes in children with atopic dermatitis and cow-milk protein allergy. Conclusions Postnatal strain-specific probiotics (in single or mixed forms) are beneficial in preventing and treating atopic dermatitis and other allergies. Similarly, specific strains are more effective in preventing asthma or improving asthma outcomes. We recommend more interventional studies to establish the most useful probiotic strain in these allergic diseases.
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Affiliation(s)
- Samuel N. Uwaezuoke
- Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku-Ozalla, Enugu, Nigeria
- Department of Pediatrics, College of Medicine, University of Nigeria, Ituku-Ozalla Enugu Campus, Enugu, Nigeria
| | - Adaeze C. Ayuk
- Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku-Ozalla, Enugu, Nigeria
- Department of Pediatrics, College of Medicine, University of Nigeria, Ituku-Ozalla Enugu Campus, Enugu, Nigeria
| | - Joy N. Eze
- Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku-Ozalla, Enugu, Nigeria
- Department of Pediatrics, College of Medicine, University of Nigeria, Ituku-Ozalla Enugu Campus, Enugu, Nigeria
| | - Chioma L. Odimegwu
- Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku-Ozalla, Enugu, Nigeria
- Department of Pediatrics, College of Medicine, University of Nigeria, Ituku-Ozalla Enugu Campus, Enugu, Nigeria
| | - Chibuzo O. Ndiokwelu
- Department of Paediatrics, University of Nigeria Teaching Hospital, Ituku-Ozalla, Enugu, Nigeria
| | - Ikenna C. Eze
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
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24
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Frei R, Heye K, Roduit C. Environmental influences on childhood allergies and asthma - The Farm effect. Pediatr Allergy Immunol 2022; 33:e13807. [PMID: 35754122 PMCID: PMC9327508 DOI: 10.1111/pai.13807] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/10/2022] [Accepted: 05/13/2022] [Indexed: 12/12/2022]
Abstract
Asthma and allergies are major health problems and exert an enormous socioeconomic burden. Besides genetic predisposition, environmental factors play a crucial role in the development of these diseases in childhood. Multiple worldwide epidemiological studies have shown that children growing up on farms are immune to allergic diseases and asthma. Farm-related exposures shape children's immune homeostasis, via mediators such as N-glycolylneuraminic acid or arabinogalactan, or by diverse environmental microbes. Moreover, nutritional factors, such as breastfeeding or farm milk and food diversity, inducing short-chain fatty acids-producing bacteria in the intestine, contribute to farm-related effects. All farm-related exposures induce an anti-inflammatory response of the innate immunity and increase the differentiation of regulatory T cells and T helper cell type 1. A better understanding of the components of the farm environment, that are protective to the development of allergy and asthma, and their underlying mechanisms, will help to develop new strategies for the prevention of allergy and asthma.
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Affiliation(s)
- Remo Frei
- Division of Paediatric Respiratory Medicine and Allergology, Department of Pediatrics, Inselspital, Bern University Hospital and Department for BioMedical Research, University of Bern, Bern, Switzerland.,Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
| | - Kristina Heye
- Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland.,Children's Hospital of Eastern Switzerland, St Gallen, Switzerland
| | - Caroline Roduit
- Christine Kühne-Center for Allergy Research and Education (CK-CARE), Davos, Switzerland.,Children's Hospital of Eastern Switzerland, St Gallen, Switzerland.,University Children's Hospital Zurich, Zurich, Switzerland
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25
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Hou K, Wu ZX, Chen XY, Wang JQ, Zhang D, Xiao C, Zhu D, Koya JB, Wei L, Li J, Chen ZS. Microbiota in health and diseases. Signal Transduct Target Ther 2022; 7:135. [PMID: 35461318 PMCID: PMC9034083 DOI: 10.1038/s41392-022-00974-4] [Citation(s) in RCA: 702] [Impact Index Per Article: 351.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 03/11/2022] [Accepted: 03/15/2022] [Indexed: 02/07/2023] Open
Abstract
The role of microbiota in health and diseases is being highlighted by numerous studies since its discovery. Depending on the localized regions, microbiota can be classified into gut, oral, respiratory, and skin microbiota. The microbial communities are in symbiosis with the host, contributing to homeostasis and regulating immune function. However, microbiota dysbiosis can lead to dysregulation of bodily functions and diseases including cardiovascular diseases (CVDs), cancers, respiratory diseases, etc. In this review, we discuss the current knowledge of how microbiota links to host health or pathogenesis. We first summarize the research of microbiota in healthy conditions, including the gut-brain axis, colonization resistance and immune modulation. Then, we highlight the pathogenesis of microbiota dysbiosis in disease development and progression, primarily associated with dysregulation of community composition, modulation of host immune response, and induction of chronic inflammation. Finally, we introduce the clinical approaches that utilize microbiota for disease treatment, such as microbiota modulation and fecal microbial transplantation.
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Affiliation(s)
- Kaijian Hou
- Department of Endocrine and Metabolic Diseases, Longhu Hospital, The First Affiliated Hospital of Medical College of Shantou University, Shantou, Guangdong, 515000, China
| | - Zhuo-Xun Wu
- Department of Pharmaceutical Sciences, Institute for Biotechnology, College of Pharmacy and Health Sciences, St. John's University, Queens, NY, 11439, USA
| | - Xuan-Yu Chen
- Department of Pharmaceutical Sciences, Institute for Biotechnology, College of Pharmacy and Health Sciences, St. John's University, Queens, NY, 11439, USA
| | - Jing-Quan Wang
- Department of Pharmaceutical Sciences, Institute for Biotechnology, College of Pharmacy and Health Sciences, St. John's University, Queens, NY, 11439, USA
| | - Dongya Zhang
- Microbiome Research Center, Moon (Guangzhou) Biotech Ltd, Guangzhou, 510535, China
| | - Chuanxing Xiao
- Department of Endocrine and Metabolic Diseases, Longhu Hospital, The First Affiliated Hospital of Medical College of Shantou University, Shantou, Guangdong, 515000, China
| | - Dan Zhu
- Department of Endocrine and Metabolic Diseases, Longhu Hospital, The First Affiliated Hospital of Medical College of Shantou University, Shantou, Guangdong, 515000, China
| | - Jagadish B Koya
- Department of Pharmaceutical Sciences, Institute for Biotechnology, College of Pharmacy and Health Sciences, St. John's University, Queens, NY, 11439, USA
| | - Liuya Wei
- School of Pharmacy, Weifang Medical University, Weifang, Shandong, 261053, China
| | - Jilin Li
- Department of Cardiovascular, The Second Affiliated Hospital of Medical College of Shantou University, Shantou, Guangdong, 515000, China
| | - Zhe-Sheng Chen
- Department of Pharmaceutical Sciences, Institute for Biotechnology, College of Pharmacy and Health Sciences, St. John's University, Queens, NY, 11439, USA
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26
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Mousavi SE, Delgado-Saborit JM, Adivi A, Pauwels S, Godderis L. Air pollution and endocrine disruptors induce human microbiome imbalances: A systematic review of recent evidence and possible biological mechanisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 816:151654. [PMID: 34785217 DOI: 10.1016/j.scitotenv.2021.151654] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/26/2021] [Accepted: 11/09/2021] [Indexed: 05/25/2023]
Abstract
A rich body of literature indicates that environmental factors interact with the human microbiome and influence its composition and functions contributing to the pathogenesis of diseases in distal sites of the body. This systematic review examines the scientific evidence on the effect of environmental toxicants, air pollutants and endocrine disruptors (EDCs), on compositional and diversity of human microbiota. Articles from PubMed, Embase, WoS and Google Scholar where included if they focused on human populations or the SHIME® model, and assessed the effects of air pollutants and EDCs on human microbiome. Non-human studies, not written in English and not displaying original research were excluded. The Newcastle-Ottawa Scale was used to assess the quality of individual studies. Results were extracted and presented in tables. 31 studies were selected, including 24 related to air pollutants, 5 related to EDCs, and 2 related to EDC using the SHIME® model. 19 studies focussed on the respiratory system (19), gut (8), skin (2), vaginal (1) and mammary (1) microbiomes. No sufficient number of studies are available to observe a consistent trend for most of the microbiota, except for streptococcus and veillionellales for which 9 out of 10, and 3 out of 4 studies suggest an increase of abundance with exposure to air pollution. A limitation of the evidence reviewed is the scarcity of existing studies assessing microbiomes from individual systems. Growing evidence suggests that exposure to environmental contaminants could change the diversity and abundance of resident microbiota, e.g. in the upper and lower respiratory, gastrointestinal, and female reproductive system. Microbial dysbiosis might lead to colonization of pathogens and outgrowth of pathobionts facilitating infectious diseases. It also might prime metabolic dysfunctions disrupting the production of beneficial metabolites. Further studies should elucidate the role of environmental pollutants in the development of dysbiosis and dysregulation of microbiota-related immunological processes.
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Affiliation(s)
- Sayed Esmaeil Mousavi
- Department of Water and Wastewater Treatment, Water and Wastewater Consulting Engineers (Design & Research), Isfahan, Iran
| | - Juana Maria Delgado-Saborit
- Perinatal Epidemiology, Environmental Health and Clinical Research, School of Medicine, Universitat Jaume I, Castellon, Spain; Environmental Research Group, MRC Centre for Environment and Health, Imperial College London, United Kingdom; School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
| | - Anna Adivi
- Advanced Environmental Research Institute, Department of Biological Sciences, University of North Texas, Denton, TX 76201, USA
| | - Sara Pauwels
- Department of Public Health and Primary Care, Centre Environment & Health, KU Leuven, Belgium
| | - Lode Godderis
- Department of Public Health and Primary Care, Centre Environment & Health, KU Leuven, Belgium; IDEWE, External Service for Prevention and Protection at work, Interleuvenlaan 58, 3001 Heverlee, Belgium.
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27
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Zheng P, Zhang K, Lv X, Liu C, Wang Q, Bai X. Gut Microbiome and Metabolomics Profiles of Allergic and Non-Allergic Childhood Asthma. J Asthma Allergy 2022; 15:419-435. [PMID: 35418758 PMCID: PMC8995180 DOI: 10.2147/jaa.s354870] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 03/02/2022] [Indexed: 11/28/2022] Open
Abstract
Purpose This study aimed to investigate the characteristics of gut bacteria and the derived metabolites among allergic asthmatic children, non-allergic asthmatic children and healthy children without asthma. Methods Fecal samples were collected from 57 participants, including 20 healthy children, 27 allergic asthmatic children, and 10 non-allergic asthmatic children. 16S rRNA gene sequencing was conducted for analyzing gut bacterial compositions and untargeted metabolomics was used to analyze the alterations of gut microbe-derived metabolites. The associations between gut bacterial compositions and metabolites were analyzed by the method of Spearman correlation. Results The results showed that the compositions and metabolites of gut microbiome were altered both in allergic and non-allergic asthmatics compared with healthy controls. Chao1 (p = 0.025) index reflected a higher bacterial richness and Simpson (p = 0.024) index showed a lower diversity in asthma group. PERMANOVA analysis showed significant differences among the three groups based on unweighted UniFrac distance (p = 0.001). Both allergic and non-allergic asthmatics showed a higher relative abundance of Proteobacteria and a lower relative abundance of genera from Clostridia. More bacteria were altered in non-allergic asthmatics compared with allergic asthmatics. Metabolomics analysis identified that 42 metabolites were significantly associated with allergic asthma, and 58 metabolites were significantly associated with non-allergic asthma (multiple linear regression, p < 0.05). Histamine was 4 folds up-regulated only in the non-allergic asthma group. The relative abundance of Candidatus Accumulib was significantly correlated with the upregulation of histamine. The relative abundance of genera from Clostridia was significantly correlated with the downregulation of lipid and tryptophan metabolism. Conclusion The altered gut microbes was associated with the mechanism of asthma attack through metabolites in allergic and non-allergic asthma group, respectively. The result suggested that gut microbiome had an impact on the development of both allergic and non-allergic asthma. The distinct gut microbiome and microbiome-derived metabolites in non-allergic asthma children suggested that gut microbiome might play a critical role in modulation of asthma phenotype.
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Affiliation(s)
- Ping Zheng
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Kexing Zhang
- Department of Immunization Program, Xinwu District Center for Disease Control and Prevention, Wuxi, People’s Republic of China
| | - Xifang Lv
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Chuanhe Liu
- Children’s Hospital, Capital Institute of Pediatrics, Beijing, People’s Republic of China
| | - Qiang Wang
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
- Correspondence: Qiang Wang; Xuetao Bai, China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, 29 Nanwei Road, Xicheng District, Beijing, 100050, People’s Republic of China, Tel +86 10 50930251, Email ;
| | - Xuetao Bai
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
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The Immune Mechanisms of Severe Equine Asthma-Current Understanding and What Is Missing. Animals (Basel) 2022; 12:ani12060744. [PMID: 35327141 PMCID: PMC8944511 DOI: 10.3390/ani12060744] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 03/11/2022] [Accepted: 03/14/2022] [Indexed: 01/27/2023] Open
Abstract
Severe equine asthma is a chronic respiratory disease of adult horses, occurring when genetically susceptible individuals are exposed to environmental aeroallergens. This results in airway inflammation, mucus accumulation and bronchial constriction. Although several studies aimed at evaluating the genetic and immune pathways associated with the disease, the results reported are inconsistent. Furthermore, the complexity and heterogeneity of this disease bears great similarity to what is described for human asthma. Currently available studies identified two chromosome regions (ECA13 and ECA15) and several genes associated with the disease. The inflammatory response appears to be mediated by T helper cells (Th1, Th2, Th17) and neutrophilic inflammation significantly contributes to the persistence of airway inflammatory status. This review evaluates the reported findings pertaining to the genetical and immunological background of severe equine asthma and reflects on their implications in the pathophysiology of the disease whilst discussing further areas of research interest aiming at advancing treatment and prognosis of affected individuals.
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Srinath BS, Shastry RP, Kumar SB. Role of gut-lung microbiome crosstalk in COVID-19. RESEARCH ON BIOMEDICAL ENGINEERING 2022. [PMCID: PMC7685301 DOI: 10.1007/s42600-020-00113-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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30
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Dong H, Tan R, Chen Z, Wang L, Song Y, Jin M, Yin J, Li H, Li J, Yang D. The Effects of Immunosuppression on the Lung Microbiome and Metabolites in Rats. Front Microbiol 2022; 13:817159. [PMID: 35237248 PMCID: PMC8882871 DOI: 10.3389/fmicb.2022.817159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 01/03/2022] [Indexed: 11/13/2022] Open
Abstract
Immunosuppressed patients are more likely to suffer from pneumonia, especially Streptococcus and Enterobacter pneumonia. Studies have demonstrated the existence of a complex and dynamic microbiota on the surface of human respiratory epithelial cells, both in healthy and diseased states. However, it is not clear whether the pneumonia in immunosuppressed patients is caused by inhaled oropharyngeal pathogens or abnormal proliferation of pulmonary proteobacteria. In this study, immunosuppressed model was made by intraperitoneal injection of cyclophosphamide and oropharyngeal saliva aspiration was simulated by oral and pharyngeal tracheal instillation of sterilized phosphate buffered saline (PBS). Furthermore, the effects of immunosuppression on the lung microbial community and its metabolism were investigated using 16S rRNA gene sequencing and liquid chromatography-mass spectrometry (LC-MS) metabolomics analysis. The 16S rRNA gene sequencing results showed that immunosuppression alone did not change the composition of pulmonary bacteria. Moreover, although the bacteria brought by sterilized PBS from oropharynx to lower respiratory tract changed the composition of the microflora in healthy and immunosuppressed rats, the change in the latter was more obvious. Metabolomic analysis revealed that the levels of pulmonary metabolites were disturbed in the immunosuppressed rats. The altered lung microbiota, including Streptococcaceae and Enterobacteriaceae, showed significant positive correlations with pulmonary metabolites. Our study suggested that the source of the pathogens of pneumonia in immunosuppressed rats was via inhalation and explored the relationship between lung microbiome and metabolites in immunosuppressed rats. Our results provide the basis for the development of prevention and treatment strategies for pneumonia.
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31
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Bossung V, Lupatsii M, Dashdorj L, Tassiello O, Jonassen S, Pagel J, Demmert M, Wolf EA, Rody A, Waschina S, Graspeuntner S, Rupp J, Härtel C. Timing of antimicrobial prophylaxis for cesarean section is critical for gut microbiome development in term born infants. Gut Microbes 2022; 14:2038855. [PMID: 35184691 PMCID: PMC8865290 DOI: 10.1080/19490976.2022.2038855] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 01/24/2022] [Indexed: 02/04/2023] Open
Abstract
Animal models imply that the perinatal exposure to antibiotics has a substantial impact on microbiome establishment of the offspring. We aimed to evaluate the effect of timing of antimicrobial prophylaxis for cesarean section before versus after cord clamping on gut microbiome composition of term born infants. We performed an exploratory, single center randomized controlled clinical trial. We included forty pregnant women with elective cesarean section at term. The intervention group received single dose intravenous cefuroxime after cord clamping (n = 19), the control group single dose intravenous cefuroxime 30 minutes before skin incision (n = 21). The primary endpoint was microbiome signature of infants and metabolic prediction in the first days of life as determined in meconium samples by 16S rRNA gene sequencing. Secondary endpoints were microbiome composition at one month and 1 year of life. In meconium samples of the intervention group, the genus Staphylococcus pre-dominated. In the control group, the placental cross-over of cefuroxime was confirmed in cord blood. A higher amino acid and nitrogen metabolism as well as increased abundance of the genera Cutibacterium, Corynebacterium and Streptophyta were noted (indicator families: Cytophagaceae, Lactobacilaceae, Oxalobacteraceae). Predictive models of metabolic function revealed higher 2'fucosyllactose utilization in control group samples. In the follow-up visits, a higher abundance of the genus Clostridium was evident in the intervention group. Our exploratory randomized controlled trial suggests that timing of antimicrobial prophylaxis is critical for early microbiome engraftment but not antimicrobial resistance emergence in term born infants.
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Affiliation(s)
- Verena Bossung
- Department of Obstetrics and Gynecology, University Hospital of Schleswig-Holstein, Campus, Lübeck, Germany
| | - Mariia Lupatsii
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany
- German Center for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, Lübeck, Germany
| | | | - Oronzo Tassiello
- Institute for Human Nutrition and Food Science, Nutriinformatics, University of Kiel, Kiel, Germany
| | - Sinje Jonassen
- Department of Obstetrics and Gynecology, University Hospital of Schleswig-Holstein, Campus, Lübeck, Germany
| | - Julia Pagel
- German Center for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, Lübeck, Germany
- Department of Pediatrics, University Hospital of Schleswig-Holstein, Campus, Lübeck, Germany
| | - Martin Demmert
- Department of Pediatrics, University Hospital of Schleswig-Holstein, Campus, Lübeck, Germany
| | - Ellinor Anna Wolf
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany
| | - Achim Rody
- Department of Obstetrics and Gynecology, University Hospital of Schleswig-Holstein, Campus, Lübeck, Germany
| | - Silvio Waschina
- Institute for Human Nutrition and Food Science, Nutriinformatics, University of Kiel, Kiel, Germany
| | - Simon Graspeuntner
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany
- German Center for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, Lübeck, Germany
| | - Jan Rupp
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany
- German Center for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, Lübeck, Germany
| | - Christoph Härtel
- German Center for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, Lübeck, Germany
- Department of Pediatrics, University Hospital of Schleswig-Holstein, Campus, Lübeck, Germany
- Department of Pediatrics, University Hospital of Würzburg, Wurzburg, Germany
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32
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Trujillo J, Lunjani N, Ryan D, O'Mahony L. Microbiome-immune interactions and relationship to asthma severity. J Allergy Clin Immunol 2021; 149:533-534. [PMID: 34953788 DOI: 10.1016/j.jaci.2021.12.774] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/24/2021] [Accepted: 12/16/2021] [Indexed: 10/19/2022]
Affiliation(s)
- Juan Trujillo
- Cork University Hospital, Irish Centre for Maternal and Child Health Research (INFANT), HRB Clinical Research Facility Cork (CRF-C), Cork, Ireland
| | - Nonhlanhla Lunjani
- APC Microbiome Ireland, University College Cork, Cork, Ireland;; Department of Dermatology, University of Cape Town, South Africa
| | - Dermot Ryan
- Asthma UK Centre for Applied Research (AUKCAR), Usher Institute, University of Edinburgh, Scotland
| | - Liam O'Mahony
- APC Microbiome Ireland, University College Cork, Cork, Ireland;; Department of Medicine, University College Cork, Cork, Ireland;; School of Microbiology, University College Cork, Cork, Ireland.
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33
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Logotheti M, Agioutantis P, Katsaounou P, Loutrari H. Microbiome Research and Multi-Omics Integration for Personalized Medicine in Asthma. J Pers Med 2021; 11:jpm11121299. [PMID: 34945771 PMCID: PMC8707330 DOI: 10.3390/jpm11121299] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/13/2021] [Accepted: 11/24/2021] [Indexed: 12/12/2022] Open
Abstract
Asthma is a multifactorial inflammatory disorder of the respiratory system characterized by high diversity in clinical manifestations, underlying pathological mechanisms and response to treatment. It is generally established that human microbiota plays an essential role in shaping a healthy immune response, while its perturbation can cause chronic inflammation related to a wide range of diseases, including asthma. Systems biology approaches encompassing microbiome analysis can offer valuable platforms towards a global understanding of asthma complexity and improving patients' classification, status monitoring and therapeutic choices. In the present review, we summarize recent studies exploring the contribution of microbiota dysbiosis to asthma pathogenesis and heterogeneity in the context of asthma phenotypes-endotypes and administered medication. We subsequently focus on emerging efforts to gain deeper insights into microbiota-host interactions driving asthma complexity by integrating microbiome and host multi-omics data. One of the most prominent achievements of these research efforts is the association of refractory neutrophilic asthma with certain microbial signatures, including predominant pathogenic bacterial taxa (such as Proteobacteria phyla, Gammaproteobacteria class, especially species from Haemophilus and Moraxella genera). Overall, despite existing challenges, large-scale multi-omics endeavors may provide promising biomarkers and therapeutic targets for future development of novel microbe-based personalized strategies for diagnosis, prevention and/or treatment of uncontrollable asthma.
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Affiliation(s)
- Marianthi Logotheti
- G.P. Livanos and M. Simou Laboratories, 1st Department of Critical Care Medicine & Pulmonary Services, Evangelismos Hospital, Medical School, National Kapodistrian University of Athens, 3 Ploutarchou Str., 10675 Athens, Greece; (M.L.); (P.A.)
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str., Zografou Campus, 15780 Athens, Greece
| | - Panagiotis Agioutantis
- G.P. Livanos and M. Simou Laboratories, 1st Department of Critical Care Medicine & Pulmonary Services, Evangelismos Hospital, Medical School, National Kapodistrian University of Athens, 3 Ploutarchou Str., 10675 Athens, Greece; (M.L.); (P.A.)
| | - Paraskevi Katsaounou
- Pulmonary Dept First ICU, Evangelismos Hospital, Medical School, National Kapodistrian University of Athens, Ipsilantou 45-7, 10675 Athens, Greece;
| | - Heleni Loutrari
- G.P. Livanos and M. Simou Laboratories, 1st Department of Critical Care Medicine & Pulmonary Services, Evangelismos Hospital, Medical School, National Kapodistrian University of Athens, 3 Ploutarchou Str., 10675 Athens, Greece; (M.L.); (P.A.)
- Correspondence:
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Bacci G, Rossi A, Armanini F, Cangioli L, De Fino I, Segata N, Mengoni A, Bragonzi A, Bevivino A. Lung and Gut Microbiota Changes Associated with Pseudomonas aeruginosa Infection in Mouse Models of Cystic Fibrosis. Int J Mol Sci 2021; 22:ijms222212169. [PMID: 34830048 PMCID: PMC8625166 DOI: 10.3390/ijms222212169] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/02/2021] [Accepted: 11/05/2021] [Indexed: 12/11/2022] Open
Abstract
Cystic fibrosis (CF) disease leads to altered lung and gut microbiomes compared to healthy subjects. The magnitude of this dysbiosis is influenced by organ-specific microenvironmental conditions at different stages of the disease. However, how this gut-lung dysbiosis is influenced by Pseudomonas aeruginosa chronic infection is unclear. To test the relationship between CFTR dysfunction and gut-lung microbiome under chronic infection, we established a model of P. aeruginosa infection in wild-type (WT) and gut-corrected CF mice. Using 16S ribosomal RNA gene, we compared lung, stool, and gut microbiota of C57Bl/6 Cftr tm1UNCTgN(FABPCFTR) or WT mice at the naïve state or infected with P. aeruginosa. P. aeruginosa infection influences murine health significantly changing body weight both in CF and WT mice. Both stool and gut microbiota revealed significantly higher values of alpha diversity in WT mice than in CF mice, while lung microbiota showed similar values. Infection with P. aeruginosa did not changed the diversity of the stool and gut microbiota, while a drop of diversity of the lung microbiota was observed compared to non-infected mice. However, the taxonomic composition of gut microbiota was shown to be influenced by P. aeruginosa infection in CF mice but not in WT mice. This finding indicates that P. aeruginosa chronic infection has a major impact on microbiota diversity and composition in the lung. In the gut, CFTR genotype and P. aeruginosa infection affected the overall diversity and taxonomic microbiota composition, respectively. Overall, our results suggest a cross-talk between lung and gut microbiota in relation to P. aeruginosa chronic infection and CFTR mutation.
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Affiliation(s)
- Giovanni Bacci
- Department of Biology, University of Florence, Sesto Fiorentino, 50019 Florence, Italy; (G.B.); (L.C.); (A.M.)
| | - Alice Rossi
- Infections and Cystic Fibrosis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (A.R.); (I.D.F.); (A.B.)
| | - Federica Armanini
- Department CIBIO, University of Trento, 38122 Trento, Italy; (F.A.); (N.S.)
| | - Lisa Cangioli
- Department of Biology, University of Florence, Sesto Fiorentino, 50019 Florence, Italy; (G.B.); (L.C.); (A.M.)
| | - Ida De Fino
- Infections and Cystic Fibrosis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (A.R.); (I.D.F.); (A.B.)
| | - Nicola Segata
- Department CIBIO, University of Trento, 38122 Trento, Italy; (F.A.); (N.S.)
| | - Alessio Mengoni
- Department of Biology, University of Florence, Sesto Fiorentino, 50019 Florence, Italy; (G.B.); (L.C.); (A.M.)
| | - Alessandra Bragonzi
- Infections and Cystic Fibrosis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (A.R.); (I.D.F.); (A.B.)
| | - Annamaria Bevivino
- Department for Sustainability, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, ENEA Casaccia Research Center, 00123 Rome, Italy
- Correspondence: ; Tel.: +39-0630-483-868
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Suaini NHA, Siah KTH, Tham EH. Role of the gut-skin axis in IgE-mediated food allergy and atopic diseases. Curr Opin Gastroenterol 2021; 37:557-564. [PMID: 34411036 DOI: 10.1097/mog.0000000000000780] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
PURPOSE OF REVIEW In recent years, landmark clinical trials investigating the role of early oral exposure to food antigens for food allergy (FA) prevention have highlighted the importance of immunoregulatory pathways in the 'gut-skin axis'. This review highlights recent literature on the mechanisms of the immune system and microbiome involved in the gut-skin axis, contributing to the development of atopic dermatitis (AD), FA, allergic rhinitis (AR) and asthma. Therapeutic interventions harnessing the gut-skin axis are also discussed. RECENT FINDINGS Epicutaneous sensitization in the presence of AD is capable of inducing Th2 allergic inflammation in the intestinal tract and lower respiratory airways, predisposing one to the development of AR and asthma. Probiotics have demonstrated positive effects in preventing and treating AD, though there is no evident relationship of its beneficial effects on other allergic diseases. Prophylactic skin emollients use has not shown consistent protection against AD, whereas there is some evidence for the role of dietary changes in alleviating AD and airway inflammation. More randomized controlled trials are needed to clarify the potential of epicutaneous immunotherapy as a therapeutic strategy for patients with FA. SUMMARY The growing understanding of the gut-skin interactions on allergic disease pathogenesis presents novel avenues for therapeutic interventions which target modulation of the gut and/or skin.
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Affiliation(s)
| | - Kewin Tien Ho Siah
- Division of Gastroenterology & Hepatology, University Medicine Cluster, National University Hospital
- Department of Medicine, Yong Loo Lin School of Medicine
| | - Elizabeth Huiwen Tham
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A STAR)
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore (NUS)
- Khoo Teck Puat-National University Children's Medical Institute, National University Health System (NUHS)
- Human Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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36
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Hu W, Lu W, Li L, Zhang H, Lee YK, Chen W, Zhao J. Both living and dead Faecalibacterium prausnitzii alleviate house dust mite-induced allergic asthma through the modulation of gut microbiota and short-chain fatty acid production. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:5563-5573. [PMID: 33709404 DOI: 10.1002/jsfa.11207] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 03/03/2021] [Accepted: 03/11/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Asthma is increasingly prevalent worldwide, and novel strategies to prevent or treat this disease are needed. Probiotic intervention has recently been reported to be effective for asthma prevention. Here, we explored the effects of Faecalibacterium prausnitzii on the development of allergic airway inflammation in a murine model of house dust mite (HDM)-induced allergic asthma. RESULTS Supplementation with living and dead F. prausnitzii blocked eosinophil, neutrophil, lymphocyte and macrophage influx and alleviated the pathological changes. Moreover, both living and dead F. prausnitzii administration decreased the levels of interleukin (IL)-4, IL-5, IL-13 and immunoglobulin G1, elevated regulatory T cell (Tregs) ratio, improved microbial dysbiosis and enhanced short-chain fatty acid (SCFA) production. Network correlation analysis revealed that the immune indicators were strongly associated with SCFA production. Based on the linear discriminant analysis effect size, Turicibacter was found to be the core genus related to HDM-induced asthma. Living F. prausnitzii treatment enriched Faecalibaculum, Dubosiella and Streptococcus, while dead F. prausnitzii treatment increased Muribaculaceae and Parabacteroides. Interestingly, both living and dead F. prausnitzii administration enriched Lachnoclostridium and normalized the pathways involving carbohydrate and lipid metabolism, which might be related to SCFA production. CONCLUSION Faecalibacterium prausnitzii exerts an anti-asthmatic effect partly by gut microbiota modulation and SCFA production, suggesting its potential as a probiotic agent for allergic asthma prevention. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Wenbing Hu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Wenwei Lu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, China
| | - Lingzhi Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, China
- Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research Institute Wuxi Branch, Wuxi, China
| | - Yuan-Kun Lee
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China
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37
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Rigauts C, Aizawa J, Taylor S, Rogers GB, Govaerts M, Cos P, Ostyn L, Sims S, Vandeplassche E, Sze M, Dondelinger Y, Vereecke L, Van Acker H, Simpson JL, Burr L, Willems A, Tunney MM, Cigana C, Bragonzi A, Coenye T, Crabbé A. Rothia mucilaginosa is an anti-inflammatory bacterium in the respiratory tract of patients with chronic lung disease. Eur Respir J 2021; 59:13993003.01293-2021. [PMID: 34588194 PMCID: PMC9068977 DOI: 10.1183/13993003.01293-2021] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 09/10/2021] [Indexed: 11/24/2022]
Abstract
Background Chronic airway inflammation is the main driver of pathogenesis in respiratory diseases such as severe asthma, chronic obstructive pulmonary disease, cystic fibrosis (CF) and bronchiectasis. While the role of common pathogens in airway inflammation is widely recognised, the influence of other microbiota members is still poorly understood. Methods We hypothesised that the lung microbiota contains bacteria with immunomodulatory activity which modulate net levels of immune activation by key respiratory pathogens. Therefore, we assessed the immunomodulatory effect of several members of the lung microbiota frequently reported as present in CF lower respiratory tract samples. Results We show that Rothia mucilaginosa, a common resident of the oral cavity that is also often detectable in the lower airways in chronic disease, has an inhibitory effect on pathogen- or lipopolysaccharide-induced pro-inflammatory responses, in vitro (three-dimensional cell culture model) and in vivo (mouse model). Furthermore, in a cohort of adults with bronchiectasis, the abundance of Rothia species was negatively correlated with pro-inflammatory markers (interleukin (IL)-8 and IL-1β) and matrix metalloproteinase (MMP)-1, MMP-8 and MMP-9 in sputum. Mechanistic studies revealed that R. mucilaginosa inhibits NF-κB pathway activation by reducing the phosphorylation of IκBα and consequently the expression of NF-κB target genes. Conclusions These findings indicate that the presence of R. mucilaginosa in the lower airways potentially mitigates inflammation, which could in turn influence the severity and progression of chronic respiratory disorders. A commensal bacterium of the lower airways, Rothia mucilaginosa, inhibits inflammation by NF-κB pathway inactivation. R. mucilaginosa abundance inversely correlates with sputum pro-inflammatory markers in chronic lung disease, indicating a beneficial role.https://bit.ly/3lNT9th
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Affiliation(s)
- Charlotte Rigauts
- Laboratory of Pharmaceutical Microbiology, Ghent University, Gent, Belgium
| | - Juliana Aizawa
- Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Wilrijk, Belgium
| | - Steven Taylor
- Microbiome and Host Health Programme, the South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia.,The SAHMRI Microbiome Research Laboratory, School of Medicine, Flinders University, Adelaide, South Australia, Australia
| | - Geraint B Rogers
- Microbiome and Host Health Programme, the South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia.,The SAHMRI Microbiome Research Laboratory, School of Medicine, Flinders University, Adelaide, South Australia, Australia
| | - Matthias Govaerts
- Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Wilrijk, Belgium
| | - Paul Cos
- Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Wilrijk, Belgium
| | - Lisa Ostyn
- Laboratory of Pharmaceutical Microbiology, Ghent University, Gent, Belgium
| | - Sarah Sims
- Microbiome and Host Health Programme, the South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia.,The SAHMRI Microbiome Research Laboratory, School of Medicine, Flinders University, Adelaide, South Australia, Australia
| | - Eva Vandeplassche
- Laboratory of Pharmaceutical Microbiology, Ghent University, Gent, Belgium
| | - Mozes Sze
- VIB Center for Inflammation Research, Ghent, Belgium
| | - Yves Dondelinger
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Gent, Belgium
| | - Lars Vereecke
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Rheumatology, Ghent University, Gent, Belgium
| | - Heleen Van Acker
- Laboratory of Pharmaceutical Microbiology, Ghent University, Gent, Belgium
| | - Jodie L Simpson
- Faculty of Health and Medicine, Priority Research Centre for Healthy Lungs, University of Newcastle, Callaghan, New South Wales, Australia
| | - Lucy Burr
- Department of Respiratory Medicine, Mater Health Services, South Brisbane, QLD, Australia.,Mater Research - University of Queensland, Aubigny Place, South Brisbane, QLD, Australia
| | - Anne Willems
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Ghent University, Gent, Belgium
| | - Michael M Tunney
- School of Pharmacy, Queen's University Belfast, Belfast, United Kingdom
| | - Cristina Cigana
- Infections and Cystic Fibrosis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Alessandra Bragonzi
- Infections and Cystic Fibrosis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Tom Coenye
- Laboratory of Pharmaceutical Microbiology, Ghent University, Gent, Belgium
| | - Aurélie Crabbé
- Laboratory of Pharmaceutical Microbiology, Ghent University, Gent, Belgium
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Losso JN, Losso MN, Toc M, Inungu JN, Finley JW. The Young Age and Plant-Based Diet Hypothesis for Low SARS-CoV-2 Infection and COVID-19 Pandemic in Sub-Saharan Africa. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2021; 76:270-280. [PMID: 34169470 PMCID: PMC8225309 DOI: 10.1007/s11130-021-00907-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/15/2021] [Indexed: 05/06/2023]
Abstract
Since the outbreak of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that caused the coronavirus disease-19 (COVID-19), in December 2019, the infection has spread around the globe. Some of the risk factors include social distancing, mask wearing, hand washing with soap, obesity, diabetes, hypertension, asthma, cardiovascular disease, and dysbiosis. Evidence has shown the incidence of total infection and death rates to be lower in sub-Saharan Africa when compared with North Africa, Europe and North America and many other parts of the world. The higher the metabolic syndrome rate, the higher the risk of SARS-CoV-2 infection. Africa has a lower rate of metabolic syndrome risk than many other continents. This paradox has puzzled several in the biomedical and scientific communities. Published results of research have demonstrated the exciting correlation that the combination of young age of the population coupled with their native plant-based diet has lowered their risk factors. The plant-based diet include whole grains (millet, sorghum), legumes (black-eye peas, dry beans, soybean), vegetables, potato, sweet potato, yams, squash, banana, pumpkin seeds, and moringa leaves, and lower consumption of meat. The plant-based diet results in a different gut microbiota than of most of the rest of the world. This has a significant impact on the survival rate of other populations. The "plant-based diet" results in lower rates of obesity, diabetes and dysbiosis, which could contribute to lower and less severe infections. However, these hypotheses need to be supported by more clinical and biostatistics data.
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Affiliation(s)
- Jack N Losso
- School of Nutrition and Food Sciences, Louisiana State University, Baton Rouge, LA, USA.
| | - MerryJean N Losso
- Department of Neurology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Marco Toc
- Department of Food Science and Nutrition, University of Illinois, Urbana Champaign, Champaign, IL, USA
| | - Joseph N Inungu
- School of Health Sciences, Central Michigan University, Mt Pleasant, MI, USA
| | - John W Finley
- School of Nutrition and Food Sciences, Louisiana State University, Baton Rouge, LA, USA
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Komlósi ZI, van de Veen W, Kovács N, Szűcs G, Sokolowska M, O'Mahony L, Akdis M, Akdis CA. Cellular and molecular mechanisms of allergic asthma. Mol Aspects Med 2021; 85:100995. [PMID: 34364680 DOI: 10.1016/j.mam.2021.100995] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 07/13/2021] [Accepted: 07/15/2021] [Indexed: 12/21/2022]
Abstract
Asthma is a chronic disease of the airways, which affects more than 350 million people worldwide. It is the most common chronic disease in children, affecting at least 30 million children and young adults in Europe. Asthma is a complex, partially heritable disease with a marked heterogeneity. Its development is influenced both by genetic and environmental factors. The most common, as well as the most well characterized subtype of asthma is allergic eosinophilic asthma, which is characterized by a type 2 airway inflammation. The prevalence of asthma has substantially increased in industrialized countries during the last 60 years. The mechanisms underpinning this phenomenon are incompletely understood, however increased exposure to various environmental pollutants probably plays a role. Disease inception is thought to be enabled by a disadvantageous shift in the balance between protective and harmful lifestyle and environmental factors, including exposure to protective commensal microbes versus infection with pathogens, collectively leading to airway epithelial cell damage and disrupted barrier integrity. Epithelial cell-derived cytokines are one of the main drivers of the type 2 immune response against innocuous allergens, ultimately leading to infiltration of lung tissue with type 2 T helper (TH2) cells, type 2 innate lymphoid cells (ILC2s), M2 macrophages and eosinophils. This review outlines the mechanisms responsible for the orchestration of type 2 inflammation and summarizes the novel findings, including but not limited to dysregulated epithelial barrier integrity, alarmin release and innate lymphoid cell stimulation.
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Affiliation(s)
- Zsolt I Komlósi
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Nagyvárad Sqr. 4, 1089, Budapest, Hungary.
| | - Willem van de Veen
- Swiss Institute of Allergy and Asthma Research (SIAF), Hermann-Burchard Strasse 9, CH7265, Davos Wolfgand, Switzerland; Christine Kühne - Center for Allergy Research and Education, Davos, Switzerland
| | - Nóra Kovács
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Nagyvárad Sqr. 4, 1089, Budapest, Hungary; Lung Health Hospital, Munkácsy Mihály Str. 70, 2045, Törökbálint, Hungary
| | - Gergő Szűcs
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Nagyvárad Sqr. 4, 1089, Budapest, Hungary; Department of Pulmonology, Semmelweis University, Tömő Str. 25-29, 1083, Budapest, Hungary
| | - Milena Sokolowska
- Swiss Institute of Allergy and Asthma Research (SIAF), Hermann-Burchard Strasse 9, CH7265, Davos Wolfgand, Switzerland; Christine Kühne - Center for Allergy Research and Education, Davos, Switzerland
| | - Liam O'Mahony
- Department of Medicine and School of Microbiology, APC Microbiome Ireland, University College Cork, Ireland
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), Hermann-Burchard Strasse 9, CH7265, Davos Wolfgand, Switzerland; Christine Kühne - Center for Allergy Research and Education, Davos, Switzerland
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), Hermann-Burchard Strasse 9, CH7265, Davos Wolfgand, Switzerland; Christine Kühne - Center for Allergy Research and Education, Davos, Switzerland
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Stavropoulou E, Kantartzi K, Tsigalou C, Konstantinidis T, Voidarou C, Konstantinidis T, Bezirtzoglou E. Unraveling the Interconnection Patterns Across Lung Microbiome, Respiratory Diseases, and COVID-19. Front Cell Infect Microbiol 2021; 10:619075. [PMID: 33585285 PMCID: PMC7876344 DOI: 10.3389/fcimb.2020.619075] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 12/11/2020] [Indexed: 01/07/2023] Open
Abstract
Albeit the lungs were thought to be sterile, recent scientific data reported a microbial microbiota in the lungs of healthy individuals. Apparently, new developments in technological approachesincluding genome sequencing methodologies contributed in the identification of the microbiota and shed light on the role of the gut and lung microbiomes in the development of respiratory diseases. Moreover, knowledge of the human microbiome in health may act as a tool for evaluating characteristic shifts in the case of disease. This review paper discusses the development of respiratory disease linked to the intestinal dysbiosis which influences the lung immunity and microbiome. The gastrointestinal-lung dialogue provides interesting aspects in the pathogenesis of the respiratory diseases. Lastly, we were further interested on the role of this interconnection in the progression and physiopathology of newly emergedCOVID-19.
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Affiliation(s)
- Elisavet Stavropoulou
- CHUV (Centre HospitalierUniversitaire Vaudois), Lausanne, Switzerland
- Department of Infectious Diseases, Central Institute, Valais Hospital, Sion, Switzerland
| | - Konstantia Kantartzi
- Nephrology Clinic, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Christina Tsigalou
- Laboratory of Microbiology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Theocharis Konstantinidis
- Laboratory of Microbiology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | | | - Theodoros Konstantinidis
- Laboratory of Hygiene and Environmental Protection, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Eugenia Bezirtzoglou
- Laboratory of Hygiene and Environmental Protection, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
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41
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Yang S, Qiao L, Shi J, Xie L, Liu Y, Xiong Y, Liu H. Clinical Study of Correlation for the Intestinal and Pharyngeal Microbiota in the Premature Neonates. Front Pediatr 2021; 9:632573. [PMID: 33665178 PMCID: PMC7920978 DOI: 10.3389/fped.2021.632573] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 01/18/2021] [Indexed: 11/25/2022] Open
Abstract
Objective: There are mutual influences between intestine and lung, that propose a concept of the gut-lung axis, but the mechanism is still unclear. Microbial colonization in early life plays an important role in regulating intestinal and lung function. In order to explore the characteristics of early microbiota on the gut-lung axis, we studied the correlation between intestinal and pharyngeal microbiota on day 1 and day 28 after birth in premature neonates. Methods: Thirteen neonates born at 26-32 weeks gestational age (GA) hospitalized at the neonatal intensive care unit (NICU) of the West China Second Hospital of Sichuan University were enrolled in this study. Stool samples and pharyngeal swabs samples were collected from each neonate on the first day (T1) and the 28th day (T28) after birth. Total bacterial DNA was extracted and sequenced using the Illumina MiSeq Sequencing System based on the V3-V4 hyper-variable regions of the 16S rRNA gene. Based on the sequencing results, the composition of the intestinal and pharyngeal microbiota was compared and analyzed. Results: At T1, the difference in microbial composition between intestine and pharynx was not statistically significant. The intestinal microbiota was mainly composed of Unidentified Enterobacteriaceae, Ralstonia, Streptococcus, Fusobacterium, Ureaplasma, etc. The pharyngeal microbiota was mainly composed of Ureaplasma, Bacteroides, Fusobacterium, etc. Ureaplasma and Fusobacterium were detected in both intestine and pharynx. At T28, there was a significant difference in microbial composition between intestine and pharynx (p < 0.001). The intestinal microbiota was mainly composed of Unidentified Clostridiales, Klebsiella, Unidentified Enterobacteriaceae, Enterobacter, Streptococcus, etc. Pharyngeal microbiota was mainly composed of Streptococcus, Rothia, etc. Streptococcus was detected in both intestine and pharynx. Conclusions: The intestine and pharynx of premature neonates have a unique microbial composition, and share some common microbiota. Whether these microbiotas play a role in the mechanism of gut-lung crosstalk needs further study.
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Affiliation(s)
- Sen Yang
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Lina Qiao
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Jing Shi
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Liang Xie
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yang Liu
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Ying Xiong
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Hanmin Liu
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
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42
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Breiteneder H, Peng Y, Agache I, Diamant Z, Eiwegger T, Fokkens WJ, Traidl‐Hoffmann C, Nadeau K, O'Hehir RE, O'Mahony L, Pfaar O, Torres MJ, Wang D, Zhang L, Akdis CA. Biomarkers for diagnosis and prediction of therapy responses in allergic diseases and asthma. Allergy 2020; 75:3039-3068. [PMID: 32893900 PMCID: PMC7756301 DOI: 10.1111/all.14582] [Citation(s) in RCA: 117] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/25/2020] [Accepted: 08/27/2020] [Indexed: 02/06/2023]
Abstract
Modern health care requires a proactive and individualized response to diseases, combining precision diagnosis and personalized treatment. Accordingly, the approach to patients with allergic diseases encompasses novel developments in the area of personalized medicine, disease phenotyping and endotyping, and the development and application of reliable biomarkers. A detailed clinical history and physical examination followed by the detection of IgE immunoreactivity against specific allergens still represents the state of the art. However, nowadays, further emphasis focuses on the optimization of diagnostic and therapeutic standards and a large number of studies have been investigating the biomarkers of allergic diseases, including asthma, atopic dermatitis, allergic rhinitis, food allergy, urticaria and anaphylaxis. Various biomarkers have been developed by omics technologies, some of which lead to a better classification of distinct phenotypes or endotypes. The introduction of biologicals to clinical practice increases the need for biomarkers for patient selection, prediction of outcomes and monitoring, to allow for an adequate choice of the duration of these costly and long‐lasting therapies. Escalating healthcare costs together with questions about the efficacy of the current management of allergic diseases require further development of a biomarker‐driven approach. Here, we review biomarkers in diagnosis and treatment of asthma, atopic dermatitis, allergic rhinitis, viral infections, chronic rhinosinusitis, food allergy, drug hypersensitivity and allergen immunotherapy with a special emphasis on specific IgE, the microbiome and the epithelial barrier. In addition, EAACI guidelines on biologicals are discussed within the perspective of biomarkers.
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Affiliation(s)
- Heimo Breiteneder
- Institute of Pathophysiology and Allergy Research Medical University of Vienna Vienna Austria
| | - Ya‐Qi Peng
- Swiss Institute of Allergy and Asthma Research (SIAF) University Zurich Davos Switzerland
- CK CARE Christine Kühne Center for Allergy Research and Education Davos Switzerland
- Otorhinolaryngology Hospital The First Affiliated Hospital Sun Yat‐Sen University Guangzhou China
| | - Ioana Agache
- Department of Allergy and Clinical Immunology Faculty of Medicine Transylvania University of Brasov Brasov Romania
| | - Zuzana Diamant
- Department of Respiratory Medicine & Allergology Institute for Clinical Science Skane University Hospital Lund University Lund Sweden
- Department of Respiratory Medicine First Faculty of Medicine Charles University and Thomayer Hospital Prague Czech Republic
- Department of Clinical Pharmacy & Pharmacology University of GroningenUniversity Medical Center Groningen Groningen Netherlands
| | - Thomas Eiwegger
- Translational Medicine Program, Research Institute Hospital for Sick Children Toronto ON Canada
- Department of Immunology University of Toronto Toronto ON Canada
- Division of Immunology and Allergy Food Allergy and Anaphylaxis Program The Hospital for Sick Children Departments of Paediatrics and Immunology University of Toronto Toronto ON Canada
| | - Wytske J. Fokkens
- Department of Otorhinolaryngology Amsterdam University Medical Centres Amsterdam The Netherlands
| | - Claudia Traidl‐Hoffmann
- CK CARE Christine Kühne Center for Allergy Research and Education Davos Switzerland
- Chair and Institute of Environmental Medicine UNIKA‐T Technical University of Munich and Helmholtz Zentrum München Augsburg Germany
- ZIEL ‐ Institute for Food & Health Technical University of Munich Freising‐Weihenstephan Germany
| | - Kari Nadeau
- Sean N. Parker Center for Allergy & Asthma Research Stanford University Stanford CA USA
| | - Robyn E. O'Hehir
- Department of Allergy, immunology and Respiratory Medicine Central Clinical School Monash University Melbourne Vic. Australia
- Allergy, Asthma and Clinical Immunology Service Alfred Health Melbourne Vic. Australia
| | - Liam O'Mahony
- Departments of Medicine and Microbiology APC Microbiome Ireland National University of Ireland Cork Ireland
| | - Oliver Pfaar
- Department of Otorhinolaryngology, Head and Neck Surgery Section of Rhinology and Allergy University Hospital MarburgPhilipps‐Universität Marburg Marburg Germany
| | - Maria J. Torres
- Allergy Unit Regional University Hospital of Malaga‐IBIMA‐UMA‐ARADyAL Malaga Spain
| | - De‐Yun Wang
- Department of Otolaryngology Yong Loo Lin School of Medicine National University of Singapore Singapore Singapore
| | - Luo Zhang
- Department of Otolaryngology Head and Neck Surgery and Department of Allergy Beijing TongRen Hospital Beijing China
| | - Cezmi A. Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF) University Zurich Davos Switzerland
- CK CARE Christine Kühne Center for Allergy Research and Education Davos Switzerland
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43
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Baghbani T, Nikzad H, Azadbakht J, Izadpanah F, Haddad Kashani H. Dual and mutual interaction between microbiota and viral infections: a possible treat for COVID-19. Microb Cell Fact 2020; 19:217. [PMID: 33243230 PMCID: PMC7689646 DOI: 10.1186/s12934-020-01483-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 11/20/2020] [Indexed: 02/07/2023] Open
Abstract
All of humans and other mammalian species are colonized by some types of microorganisms such as bacteria, archaea, unicellular eukaryotes like fungi and protozoa, multicellular eukaryotes like helminths, and viruses, which in whole are called microbiota. These microorganisms have multiple different types of interaction with each other. A plethora of evidence suggests that they can regulate immune and digestive systems and also play roles in various diseases, such as mental, cardiovascular, metabolic and some skin diseases. In addition, they take-part in some current health problems like diabetes mellitus, obesity, cancers and infections. Viral infection is one of the most common and problematic health care issues, particularly in recent years that pandemics like SARS and COVID-19 caused a lot of financial and physical damage to the world. There are plenty of articles investigating the interaction between microbiota and infectious diseases. We focused on stimulatory to suppressive effects of microbiota on viral infections, hoping to find a solution to overcome this current pandemic. Then we reviewed mechanistically the effects of both microbiota and probiotics on most of the viruses. But unlike previous studies which concentrated on intestinal microbiota and infection, our focus is on respiratory system's microbiota and respiratory viral infection, bearing in mind that respiratory system is a proper entry site and residence for viruses, and whereby infection, can lead to asymptomatic, mild, self-limiting, severe or even fatal infection. Finally, we overgeneralize the effects of microbiota on COVID-19 infection. In addition, we reviewed the articles about effects of the microbiota on coronaviruses and suggest some new therapeutic measures.
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Affiliation(s)
- Taha Baghbani
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Hossein Nikzad
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Javid Azadbakht
- Department of Radiology, Faculty of Medicin, Kashan University of Medical Sciences, Kashan, Iran
| | - Fatemeh Izadpanah
- Food and Drug Laboratory Research Center and Food and Drug Reference Control Laboratories Center, Food & Drug Administration of Iran, MOH & ME, Tehran, Iran
| | - Hamed Haddad Kashani
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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van Tilburg Bernardes E, Gutierrez MW, Arrieta MC. The Fungal Microbiome and Asthma. Front Cell Infect Microbiol 2020; 10:583418. [PMID: 33324573 PMCID: PMC7726317 DOI: 10.3389/fcimb.2020.583418] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 10/29/2020] [Indexed: 12/14/2022] Open
Abstract
Asthma is a group of inflammatory conditions that compromises the airways of a continuously increasing number of people around the globe. Its complex etiology comprises both genetic and environmental aspects, with the intestinal and lung microbiomes emerging as newly implicated factors that can drive and aggravate asthma. Longitudinal infant cohort studies combined with mechanistic studies in animal models have identified microbial signatures causally associated with subsequent asthma risk. The recent inclusion of fungi in human microbiome surveys has revealed that microbiome signatures associated with asthma risk are not limited to bacteria, and that fungi are also implicated in asthma development in susceptible individuals. In this review, we examine the unique properties of human-associated and environmental fungi, which confer them the ability to influence immune development and allergic responses. The important contribution of fungi to asthma development and exacerbations prompts for their inclusion in current and future asthma studies in humans and animal models.
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Affiliation(s)
- Erik van Tilburg Bernardes
- Department of Physiology and Pharmacology, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada.,Department of Pediatrics, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada
| | - Mackenzie W Gutierrez
- Department of Physiology and Pharmacology, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada.,Department of Pediatrics, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada
| | - Marie-Claire Arrieta
- Department of Physiology and Pharmacology, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada.,Department of Pediatrics, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada
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45
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Keyser V, Howland H. Measurement perspective, process, and the pandemic. EUROPEAN JOURNAL FOR PHILOSOPHY OF SCIENCE 2020; 11:13. [PMID: 33250946 PMCID: PMC7679794 DOI: 10.1007/s13194-020-00326-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 09/18/2020] [Indexed: 06/12/2023]
Abstract
This discussion centers on two desiderata: the role of measurement in information-gathering and physical interaction in scientific practice. By taking inspiration from van Fraassen's (2008) view, we present a methodological account of perspectival measurement that addresses empirical practice where there is complex intervention, disagreeing results, and limited theory. The specific aim of our account is to provide a methodological prescription for developing measurement processes in the context of limited theory. The account should be useful to philosophers of science, who are interested in the intersection between representation and intervention; scientists, who are interested in methodological suggestions for theory-development and reliability; and interdisciplinary researchers, who are interested in the intersections between the pandemic, built environments, and social processes. We apply the process-view of measurement to COVID-19, specifically, measuring replication in the SARS-CoV-2 virus. The aim is to show that our account tracks key elements-manipulation/intervention, independence, invariance, and theory-development-by organizing unfolding measurement processes. Additionally, we use our account to make prescriptive suggestions for measurement practice in the COVID-19 context by discussing the need to broaden measurement perspective on interaction, manipulation, and production.
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Affiliation(s)
- Vadim Keyser
- California State University, Fresno, California USA
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46
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Chiu C, Chou H, Chang L, Fan W, Dinh MCV, Kuo Y, Chung W, Lai H, Hsieh W, Su S. Integration of metagenomics-metabolomics reveals specific signatures and functions of airway microbiota in mite-sensitized childhood asthma. Allergy 2020; 75:2846-2857. [PMID: 32506557 DOI: 10.1111/all.14438] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 04/28/2020] [Accepted: 05/18/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Childhood asthma is a multifactorial inflammatory condition of the airways, associated with specific changes in respiratory microbiome and circulating metabolome. METHODS To explore the functional capacity of asthmatic microbiome and its intricate connection with the host, we performed shotgun sequencing of airway microbiome and untargeted metabolomics profiling of serum samples in a cohort of children with mite-sensitized asthma and non-asthmatic controls. RESULTS We observed higher gene counts and sample-to-sample dissimilarities in asthmatic microbiomes, indicating a more heterogeneous community structure and functionality among the cases than in controls. Moreover, we identified airway microbial species linked to changes in circulating metabolites and IgE responses of the host, including a positive correlation between Prevotella sp oral taxon 306 and dimethylglycine that were both decreased in patients. Several control-enriched species (Eubacterium sulci, Prevotella pallens, and Prevotella sp oral taxon 306) were inversely correlated with total and allergen-specific IgE levels. Genes related to microbial carbohydrate, amino acid, and lipid metabolism were differentially enriched, suggesting that changes in microbial metabolism may contribute to respiratory health in asthmatics. Pathway modules relevant to allergic responses were differentially abundant in asthmatic microbiome, such as enrichments for biofilm formation by Pseudomonas aeruginosa, membrane trafficking, histidine metabolism, and glycosaminoglycan degradation, and depletions for polycyclic aromatic hydrocarbon degradation. Further, we identified metagenomic and metabolomic markers (eg, Eubacterium sulci) to discriminate cases from the non-asthmatic controls. CONCLUSIONS Our dual-omics data reveal the connections between respiratory microbes and circulating metabolites perturbed in mite-sensitized pediatric asthma, which may be of etiological and diagnostic implications.
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Affiliation(s)
- Chih‐Yung Chiu
- Division of Pediatric Pulmonology Chang Gung Memorial Hospital at LinkouCollege of MedicineChang Gung University Taoyuan Taiwan
- Clinical Metabolomics Core Laboratory Chang Gung Memorial Hospital at Linkou Taoyuan Taiwan
| | - Hsin‐Cheng Chou
- Institute of Statistics National Tsing‐Hua University Hsinchu Taiwan
| | - Lun‐Ching Chang
- Department of Mathematical Sciences Florida Atlantic University Florida USA
| | - Wen‐Lang Fan
- Genomic Medicine Core Laboratory Chang Gung Memorial Hospital Linkou Taiwan
| | | | - Yu‐Lun Kuo
- Biotools, Co. Ltd New Taipei City Taiwan
| | - Wen‐Hung Chung
- Whole‐Genome Research Core Laboratory of Human Diseases Chang Gung Memorial Hospital Keelung Taiwan
| | - Hsin‐Chih Lai
- Department of Medical Biotechnology and Laboratory Science Microbiota Research CenterCollege of MedicineChang Gung University Taoyuan Taiwan
- Central Research Laboratory XiaMen Chang Gung Hospital XiaMen China
| | - Wen‐Ping Hsieh
- Institute of Statistics National Tsing‐Hua University Hsinchu Taiwan
| | - Shih‐Chi Su
- Whole‐Genome Research Core Laboratory of Human Diseases Chang Gung Memorial Hospital Keelung Taiwan
- Central Research Laboratory XiaMen Chang Gung Hospital XiaMen China
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47
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Robinson JM, Cando-Dumancela C, Liddicoat C, Weinstein P, Cameron R, Breed MF. Vertical Stratification in Urban Green Space Aerobiomes. ENVIRONMENTAL HEALTH PERSPECTIVES 2020; 128:117008. [PMID: 33236934 PMCID: PMC7687659 DOI: 10.1289/ehp7807] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 10/27/2020] [Accepted: 11/06/2020] [Indexed: 05/05/2023]
Abstract
BACKGROUND Exposure to a diverse environmental microbiome is thought to play an important role in "educating" the immune system and facilitating competitive exclusion of pathogens to maintain human health. Vegetation and soil are key sources of airborne microbiota--the aerobiome. A limited number of studies have attempted to characterize the dynamics of near surface green space aerobiomes, and no studies to date have investigated these dynamics from a vertical perspective. Vertical stratification in the aerobiome could have important implications for public health and for the design, engineering, and management of urban green spaces. OBJECTIVES The primary objectives of this study were to: a) assess whether significant vertical stratification in bacterial species richness and evenness (alpha diversity) of the aerobiome occurred in a parkland habitat in Adelaide, South Australia; b) assess whether significant compositional differences (beta diversity) between sampling heights occurred; and c) to preliminarily assess whether there were significant altitudinal differences in potentially pathogenic and beneficial bacterial taxa. METHODS We combined an innovative columnar sampling method at soil level, 0.0, 0.5, 1.0, and 2.0 m , using passive petri dish sampling to collect airborne bacteria. We used a geographic information system (GIS) to select study sites, and we used high-throughput sequencing of the bacterial 16S rRNA gene to assess whether significant vertical stratification of the aerobiome occurred. RESULTS Our results provide evidence of vertical stratification in both alpha and beta (compositional) diversity of airborne bacterial communities, with diversity decreasing roughly with height. We also found significant vertical stratification in potentially pathogenic and beneficial bacterial taxa. DISCUSSION Although additional research is needed, our preliminary findings point to potentially different exposure attributes that may be contingent on human height and activity type. Our results lay the foundations for further research into the vertical characteristics of urban green space aerobiomes and their implications for public health and urban planning. https://doi.org/10.1289/EHP7807.
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Affiliation(s)
- Jake M Robinson
- Department of Landscape, The University of Sheffield, Sheffield, UK
- inVIVO Planetary Health of the Worldwide Universities Network (WUN), West New York, New Jersey, USA
- College of Science and Engineering, Flinders University, Bedford Park, Australia
- The Healthy Urban Microbiome Initiative (HUMI), Adelaide, Australia
| | - Christian Cando-Dumancela
- College of Science and Engineering, Flinders University, Bedford Park, Australia
- The Healthy Urban Microbiome Initiative (HUMI), Adelaide, Australia
| | - Craig Liddicoat
- College of Science and Engineering, Flinders University, Bedford Park, Australia
- The Healthy Urban Microbiome Initiative (HUMI), Adelaide, Australia
- School of Public Health and the Environment Institute, University of Adelaide, Adelaide, Australia
| | - Philip Weinstein
- The Healthy Urban Microbiome Initiative (HUMI), Adelaide, Australia
- School of Public Health and the Environment Institute, University of Adelaide, Adelaide, Australia
| | - Ross Cameron
- Department of Landscape, The University of Sheffield, Sheffield, UK
| | - Martin F Breed
- College of Science and Engineering, Flinders University, Bedford Park, Australia
- The Healthy Urban Microbiome Initiative (HUMI), Adelaide, Australia
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Caenepeel C, Sadat Seyed Tabib N, Vieira-Silva S, Vermeire S. Review article: how the intestinal microbiota may reflect disease activity and influence therapeutic outcome in inflammatory bowel disease. Aliment Pharmacol Ther 2020; 52:1453-1468. [PMID: 32969507 DOI: 10.1111/apt.16096] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/08/2020] [Accepted: 09/03/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Intestinal bacteria produce metabolites and by-products necessary for homeostasis. Imbalance in this equilibrium is linked to multiple pathologies including inflammatory bowel disease (IBD). The role of the gut microbiota in determining treatment response is becoming apparent, and may act as biomarker for efficacy. AIM To describe knowledge about the intestinal microbiota on disease severity and treatment outcomes in IBD METHODS: Descriptive review using PubMed to identify literature on the intestinal microbiota in IBD RESULTS: Severe IBD has a less diverse microbiota with fewer commensal microbiota communities and more opportunistic pathogenic bacteria originating from the oral cavity or respiratory tract. IBD treatments can alter gut microbiota composition, but in vitro/in vivo studies are needed to prove causation. A diversification of the microbiota is observed during remission. Patients with a more diverse baseline microbiome and higher microbial diversity show better response to anti-tumour necrosis factor-α, vedolizumab and ustekinumab therapy. Higher abundance of short chain fatty acid-producing bacteria, fewer mucus-colonising bacteria and lower abundance of pro-inflammatory bacteria have also been associated with a favourable outcome. Predictive models, based on a combination of microbiota, clinical data and serological markers, have good accuracy for treatment outcome and disease severity. CONCLUSION The intestinal microbiota in IBD carries a set of promising biomarkers of disease activity and prediction of therapeutic outcome. Current insights may also help in designing microbiota modulation strategies to improve outcomes in IBD.
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Affiliation(s)
| | | | - Sara Vieira-Silva
- Department of Microbiology and Immunology, Laboratory of Molecular Bacteriology, Rega Institute for Medical Research, VIB, KU Leuven, Leuven, Belgium
| | - Séverine Vermeire
- Department of Chronic Diseases & Metabolism, Translational Research Center for Gastrointestinal Disorders, KU Leuven, Leuven, Belgium.,Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
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Xue Y, Chu J, Li Y, Kong X. The influence of air pollution on respiratory microbiome: A link to respiratory disease. Toxicol Lett 2020; 334:14-20. [DOI: 10.1016/j.toxlet.2020.09.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 09/10/2020] [Accepted: 09/12/2020] [Indexed: 01/08/2023]
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Lodge CJ, Lowe AJ, Abramson MJ, Svanes C, Zaloumis SG, Thomas PS, Dharmage SC. Transient childhood wheeze is associated with less atopy in adolescence. Pediatr Allergy Immunol 2020; 31:913-919. [PMID: 32519350 DOI: 10.1111/pai.13304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 05/08/2020] [Accepted: 06/02/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND The relationships between childhood wheeze phenotypes and subsequent allergic conditions other than asthma, including hay fever, eczema and sensitization, have not been widely reported. We aimed to investigate this relationship up to late adolescence. METHODS Using five childhood wheeze phenotypes defined from 620 children in a high-atopy risk birth cohort (Melbourne Atopy Cohort Study), we investigated their relationships with sensitization, eczema, hay fever and fractional exhaled nitric oxide (FeNO) at ages 12 and/or 18 years using logistic and linear regression models. RESULTS 'Early Persistent wheeze' was associated with the increased risk of eczema (odds ratio: 3.69; 95% CI: 1.23, 11.12) and sensitization (4.52; 1.50, 13.64) at 12 years. 'Intermediate Onset wheeze' was associated with the increased risk of eczema at 12 years (2.57; 1.11, 5.97), hay fever at 12 (2.87; 1.44, 5.74) and 18 years (2.19; 1.20, 4.02), sensitization at 12 (2.25; 1.17, 4.34) and 18 years (2.46; 1.18, 5.12), and raised FeNO at 18 years. 'Late Onset wheeze' was associated with the increased risk of hay fever at 12 (5.18; 1.11, 24.20) and 18 years (4.20; 1.03, 17.11) and sensitization at 12 years (3.27; 0.81, 13.27). In contrast, 'Early Transient wheeze' was associated with the reduced risk of eczema (0.44; 0.20, 0.96), hay fever (0.57; 0.33, 0.99) and sensitization (0.59; 0.35, 0.99) at 18 years and a lower FeNO compared with 'Never/Infrequent wheezers'. CONCLUSIONS Persistent wheeze phenotypes were associated with allergic outcomes up to 18 years with 'Intermediate Onset wheeze' being the most atopic group. In contrast, 'Early Transient wheezers' had less risk of allergic outcomes at 18 years. This protective effect may reassure parents of wheezy infants and young children.
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Affiliation(s)
- Caroline Jane Lodge
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Australia
- Murdoch Children's Research Institute, Melbourne, Australia
| | - Adrian John Lowe
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Australia
- Murdoch Children's Research Institute, Melbourne, Australia
| | - Michael John Abramson
- School of Public Health & Preventive Medicine, Monash University, Melbourne, Australia
| | - Cecilie Svanes
- Department of Global Public Health and Primary Care, Centre for International Health, University of Bergen, Bergen, Norway
- Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway
| | - Sophie G Zaloumis
- Melbourne School of Population and Global Health, Centre for Epidemiology and Biostatistics, The University of Melbourne, Melbourne, Australia
| | - Paul S Thomas
- Prince of Wales Clinical School, University of New South Wales, Sydney, NSW, Australia
| | - Shyamali Chandrika Dharmage
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Australia
- Murdoch Children's Research Institute, Melbourne, Australia
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