Microbiome of the Respiratory Tract

A special issue of Life (ISSN 2075-1729). This special issue belongs to the section "Microbiology".

Deadline for manuscript submissions: closed (31 January 2022) | Viewed by 13157

Special Issue Editors


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Guest Editor
Chair and Department of Medical Microbiology, Medical University of Lublin, 20-093 Lublin, Poland
Interests: chronic bacterial infections; bacterial small colony variants; microbiome of the respiratory tract; infection and immunity

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Guest Editor
Chair and Department of Thoracic Surgery, Medical University of Lublin, 20-093 Lublin, Poland
Interests: lung cancer; immunology; microbiology; intensive care

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Guest Editor
Department of Biochemistry and Molecular Biology, Medical University of Lublin, 20-093 Lublin, Poland
Interests: tumor microenvironment; tumor immunology; microbiome; biostatistics; transcriptomics; molecular biology; biosensors

Special Issue Information

Dear Colleagues,

The Human Microbiome Project launched in 2007 to understand the complexity of the human microbiome, leading to  significant growth in understanding the role it plays in health and disease. A large body of evidence now supports the concept that changes in microbiome composition and abundance (dysbiosis) are associated with different pathophysiological conditions by the way it affects metabolic and inflammatory pathways as well as immune response.

There is consequently a growing interest in determining the potential role of the microbiome in disease predisposition, risk, initiation, progression, diagnosis, prognosis, and treatment. Microbial dysbiosis has been found to be involved in a growing list of human diseases, including respiratory diseases. The huge potential of the airway microbiome as a rich source of therapeutic targets and disease progression and clinical outcomes markers is beyond doubt, but it is of fundamental importance to fill gaps in understanding and translate research findings into clinical interventions for direct patient benefit.

As research into the respiratory microbiome continues to grow, several fundamental questions and challenges arise. These include, among others, whether the dysbiotic microbiome of the airway is a cause or effect of the disease; whether the changes in microbiome composition of the lower respiratory tract relate to the clinical manifestation of disease or have predictive value; how the changes in the microbial microenvironment influence pathogenicity of specific species and whether it can be manipulated to change the prognosis; and how to translate findings about the airway microbiota into knowledge about its role in the health and disease process. The challenge facing scientists today is to use the latest technological advances to answer the most pressing questions.

This Special Issue on the microbiome of the respiratory tract invites submissions (research articles and reviews) about such topics. The aim is to gather new research results that aid our understanding of the relationship between the human hosts and their airway microbiome in health and disease.

Dr. Agnieszka Magryś
Dr. Paweł Rybojad
Dr. Michał Kiełbus
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • respiratory microbiome
  • respiratory diseases
  • dysbiosis
  • multi-omics
  • next-generation sequencing

Published Papers (3 papers)

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Review

20 pages, 850 KiB  
Review
Staphylococcus epidermidis Controls Opportunistic Pathogens in the Nose, Could It Help to Regulate SARS-CoV-2 (COVID-19) Infection?
by Silvestre Ortega-Peña, Sandra Rodríguez-Martínez, Mario E. Cancino-Diaz and Juan C. Cancino-Diaz
Life 2022, 12(3), 341; https://doi.org/10.3390/life12030341 - 25 Feb 2022
Cited by 5 | Viewed by 5524
Abstract
Staphylococcus epidermidis is more abundant in the anterior nares than internal parts of the nose, but its relative abundance changes along with age; it is more abundant in adolescents than in children and adults. Various studies have shown that S. epidermidis is the [...] Read more.
Staphylococcus epidermidis is more abundant in the anterior nares than internal parts of the nose, but its relative abundance changes along with age; it is more abundant in adolescents than in children and adults. Various studies have shown that S. epidermidis is the guardian of the nasal cavity because it prevents the colonization and infection of respiratory pathogens (bacteria and viruses) through the secretion of antimicrobial molecules and inhibitors of biofilm formation, occupying the space of the membrane mucosa and through the stimulation of the host’s innate and adaptive immunity. There is a strong relationship between the low number of S. epidermidis in the nasal cavity and the increased risk of serious respiratory infections. The direct application of S. epidermidis into the nasal cavity could be an effective therapeutic strategy to prevent respiratory infections and to restore nasal cavity homeostasis. This review shows the mechanisms that S. epidermidis uses to eliminate respiratory pathogens from the nasal cavity, also S. epidermidis is proposed to be used as a probiotic to prevent the development of COVID-19 because S. epidermidis induces the production of interferon type I and III and decreases the expression of the entry receptors of SARS-CoV-2 (ACE2 and TMPRSS2) in the nasal epithelial cells. Full article
(This article belongs to the Special Issue Microbiome of the Respiratory Tract)
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13 pages, 306 KiB  
Review
Lung Microbiome in Critically Ill Patients
by Mélanie Fromentin, Jean-Damien Ricard and Damien Roux
Life 2022, 12(1), 7; https://doi.org/10.3390/life12010007 - 21 Dec 2021
Cited by 5 | Viewed by 2868
Abstract
The historical hypothesis of sterility of the lungs was invalidated over a decade ago when studies demonstrated the existence of sparse but very diverse bacterial populations in the normal lung and the association between pulmonary dysbiosis and chronic respiratory diseases. Under mechanical ventilation, [...] Read more.
The historical hypothesis of sterility of the lungs was invalidated over a decade ago when studies demonstrated the existence of sparse but very diverse bacterial populations in the normal lung and the association between pulmonary dysbiosis and chronic respiratory diseases. Under mechanical ventilation, dysbiosis occurs rapidly with a gradual decline in diversity over time and the progressive predominance of a bacterial pathogen (mainly Proteobacteria) when lung infection occurs. During acute respiratory distress syndrome, an enrichment in bacteria of intestinal origin, mainly Enterobacteriaceae, is observed. However, the role of this dysbiosis in the pathogenesis of ventilator-associated pneumonia and acute respiratory distress syndrome is not yet fully understood. The lack of exploration of other microbial populations, viruses (eukaryotes and prokaryotes) and fungi is a key issue. Further analysis of the interaction between these microbial kingdoms and a better understanding of the host-microbiome interaction are necessary to fully elucidate the role of the microbiome in the pathogenicity of acute diseases. The validation of a consensual and robust methodology in order to make the comparison of the different studies relevant is also required. Filling these different gaps should help develop preventive and therapeutic strategies for both acute respiratory distress syndrome and ventilator-associated pneumonia. Full article
(This article belongs to the Special Issue Microbiome of the Respiratory Tract)
17 pages, 3289 KiB  
Review
HPV and Recurrent Respiratory Papillomatosis: A Brief Review
by Amr Mohamed Ouda, Ahmed Adel Elsabagh, Ibrahim Mohamed Elmakaty, Ishita Gupta, Semir Vranic, Hamda Al-Thawadi and Ala-Eddin Al Moustafa
Life 2021, 11(11), 1279; https://doi.org/10.3390/life11111279 - 22 Nov 2021
Cited by 10 | Viewed by 3896
Abstract
Recurrent Respiratory Papillomatosis (RRP) is a rare but severe manifestation of human papillomavirus (HPV). As our knowledge about HPV infections has expanded, it has become possible to understand the course of RRP disease and unravel plausible efficient methods to manage the disease. However, [...] Read more.
Recurrent Respiratory Papillomatosis (RRP) is a rare but severe manifestation of human papillomavirus (HPV). As our knowledge about HPV infections has expanded, it has become possible to understand the course of RRP disease and unravel plausible efficient methods to manage the disease. However, the surge in reports on HPV has not been accompanied by a similar increase in research about RRP specifically. In this paper, we review the clinical manifestation and typical presentation of the illness. In addition, the pathogenesis and progression of the disease are described. On the other hand, we discuss the types of treatments currently available and future treatment strategies. The role of vaccination in both the prevention and treatment of RRP will also be reviewed. We believe this review is essential to update the general knowledge on RRP with the latest information available to date to enhance our understanding of RRP and its management. Full article
(This article belongs to the Special Issue Microbiome of the Respiratory Tract)
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