Gut Mycobiome and Asthma

This review explores the ‘gut–lung axis’ in asthma with a focus on commensal fungal organisms. We explore how changes to the intestinal commensal fungal community composition alter lung immune function. We comprehensively review available studies that have profiled the composition of the gut mycobio...

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Main Authors: Amjad N. Kanj, Joseph H. Skalski
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Journal of Fungi
Subjects:
Online Access:https://www.mdpi.com/2309-608X/10/3/192
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author Amjad N. Kanj
Joseph H. Skalski
author_facet Amjad N. Kanj
Joseph H. Skalski
author_sort Amjad N. Kanj
collection DOAJ
description This review explores the ‘gut–lung axis’ in asthma with a focus on commensal fungal organisms. We explore how changes to the intestinal commensal fungal community composition alter lung immune function. We comprehensively review available studies that have profiled the composition of the gut mycobiome in adults and children with asthma, and discuss mechanisms of gut–lung interactions that have been described in animal models of asthma. Studies indicate that intestinal fungal dysbiosis, such as an increased abundance of certain fungi like <i>Candida</i>, can elevate the risk of asthma in children and exacerbate it in adults. This effect is mediated through various pathways: the host immune system’s sensing of dysbiosis via C-type lectin receptors (e.g., Dectin-2), the impact of pro-inflammatory fungal metabolites (e.g., 12,13-diHOME, prostaglandin E2), and the role of lung immune cells (e.g., group 2 innate lymphoid cells [ILC2], M2 macrophages). We also describe strategies for modulating the gut mycobiome as potential therapies for severe asthma. The review concludes by emphasizing the necessity for further research into the role of the gut mycobiome in asthma to deepen our understanding of these complex interactions.
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spelling doaj.art-639bdb3b062f49efabd6cedf6217820e2024-03-27T13:49:39ZengMDPI AGJournal of Fungi2309-608X2024-03-0110319210.3390/jof10030192Gut Mycobiome and AsthmaAmjad N. Kanj0Joseph H. Skalski1Division of Pulmonary and Critical Care Medicine, Mayo Clinic, 200 1st Street SW, Rochester, MN 55905, USADivision of Pulmonary and Critical Care Medicine, Mayo Clinic, 200 1st Street SW, Rochester, MN 55905, USAThis review explores the ‘gut–lung axis’ in asthma with a focus on commensal fungal organisms. We explore how changes to the intestinal commensal fungal community composition alter lung immune function. We comprehensively review available studies that have profiled the composition of the gut mycobiome in adults and children with asthma, and discuss mechanisms of gut–lung interactions that have been described in animal models of asthma. Studies indicate that intestinal fungal dysbiosis, such as an increased abundance of certain fungi like <i>Candida</i>, can elevate the risk of asthma in children and exacerbate it in adults. This effect is mediated through various pathways: the host immune system’s sensing of dysbiosis via C-type lectin receptors (e.g., Dectin-2), the impact of pro-inflammatory fungal metabolites (e.g., 12,13-diHOME, prostaglandin E2), and the role of lung immune cells (e.g., group 2 innate lymphoid cells [ILC2], M2 macrophages). We also describe strategies for modulating the gut mycobiome as potential therapies for severe asthma. The review concludes by emphasizing the necessity for further research into the role of the gut mycobiome in asthma to deepen our understanding of these complex interactions.https://www.mdpi.com/2309-608X/10/3/192gut–lung axisasthmagut mycobiomefungal dysbiosis<i>Candida</i>immune pathways
spellingShingle Amjad N. Kanj
Joseph H. Skalski
Gut Mycobiome and Asthma
Journal of Fungi
gut–lung axis
asthma
gut mycobiome
fungal dysbiosis
<i>Candida</i>
immune pathways
title Gut Mycobiome and Asthma
title_full Gut Mycobiome and Asthma
title_fullStr Gut Mycobiome and Asthma
title_full_unstemmed Gut Mycobiome and Asthma
title_short Gut Mycobiome and Asthma
title_sort gut mycobiome and asthma
topic gut–lung axis
asthma
gut mycobiome
fungal dysbiosis
<i>Candida</i>
immune pathways
url https://www.mdpi.com/2309-608X/10/3/192
work_keys_str_mv AT amjadnkanj gutmycobiomeandasthma
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